CN118008811A - Screw blower - Google Patents
Screw blower Download PDFInfo
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- CN118008811A CN118008811A CN202410194395.7A CN202410194395A CN118008811A CN 118008811 A CN118008811 A CN 118008811A CN 202410194395 A CN202410194395 A CN 202410194395A CN 118008811 A CN118008811 A CN 118008811A
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- 239000003921 oil Substances 0.000 claims abstract description 891
- 239000010687 lubricating oil Substances 0.000 claims abstract description 385
- 238000005461 lubrication Methods 0.000 claims abstract description 199
- 230000017525 heat dissipation Effects 0.000 claims abstract description 39
- 230000007704 transition Effects 0.000 claims description 163
- 238000001816 cooling Methods 0.000 claims description 39
- 238000002347 injection Methods 0.000 claims description 29
- 239000007924 injection Substances 0.000 claims description 29
- 230000006835 compression Effects 0.000 claims description 19
- 238000007906 compression Methods 0.000 claims description 19
- 230000001050 lubricating effect Effects 0.000 claims description 15
- 230000003139 buffering effect Effects 0.000 claims description 12
- 210000004907 gland Anatomy 0.000 claims description 11
- 238000005086 pumping Methods 0.000 claims description 10
- 238000001914 filtration Methods 0.000 claims description 7
- 238000009434 installation Methods 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 6
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- 238000010168 coupling process Methods 0.000 claims 2
- 238000005859 coupling reaction Methods 0.000 claims 2
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- 238000001514 detection method Methods 0.000 description 18
- 238000007789 sealing Methods 0.000 description 18
- 238000009826 distribution Methods 0.000 description 13
- 238000012423 maintenance Methods 0.000 description 13
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Abstract
The invention provides a screw blower which is provided with a blower shell, wherein the blower shell comprises a supporting end oil tank, a lubricating oil path connecting component is fixedly arranged on the outer surface of the supporting end oil tank, an oil pump component is fixedly arranged in an inner cavity of the supporting end oil tank, a lubricating oil path is arranged in the blower shell, and the lubricating oil path is used for mutually communicating a driving end oil tank, the supporting end oil tank, an air inlet shell, an air outlet shell, the lubricating oil path connecting component and the oil pump component. The screw blower solves the problems that an existing screw blower performs lubrication and heat dissipation on the screw blower through an external lubrication heat dissipation device, so that the structure is complex, the connecting pipelines are too many, the operation is complex and complicated when an operator installs or maintains the screw blower, the workload is large, and a plurality of lubricating oil leakage positions exist due to the too many connecting pipelines. The invention can be widely applied to lubrication and heat dissipation of related parts on the screw blower.
Description
Technical Field
The invention relates to a blower, in particular to a screw blower.
Background
The screw blower is gas conveying equipment based on the screw compression principle, can compress and convey gas to a required position by rotating a screw, has the advantages of simple structure, good stability, energy conservation, low noise and the like, and can be widely applied to the fields of industrial production, environmental protection, construction and the like.
The screw blower is internally provided with a male rotor and a female rotor, the male rotor and the female rotor synchronously rotate, the steps of air suction, compression and air discharge of the screw blower are realized, and finally the mechanical energy of the screw rotor is converted into the pressure and the kinetic energy of gas.
In order to ensure that the screw blower can stably run for a long time, the related parts inside the screw blower need to be fully lubricated and cooled, the existing screw blower lubrication technology is divided into two types of self-lubrication and forced lubrication, the self-lubrication is usually realized by adopting a splash lubrication technology, namely, oil stirring is carried out through an internal oil thrower disc, lubricating oil is splashed on parts such as a bearing and a gear, and the like, so that the related parts are lubricated and cooled, but the allowable exhaust pressure of the existing self-lubrication technology is lower, and when the exhaust pressure is higher, the internal parts of the screw blower need to be lubricated and cooled through the forced lubrication technology.
The existing forced lubrication technology mostly carries out lubrication and heat dissipation on the screw blower through the external lubrication heat dissipation device of the screw blower, namely the external lubrication heat dissipation device of the screw blower such as an external oil pump, a hydraulic oil tank and an air cooler is connected with each other through external lubrication oil pipelines, but the external lubrication device is complex in structure, so that the connection pipelines are too many, when an operator installs or maintains, the operation is complex and complicated, the workload is large, the weight and the occupied area of the whole machine of the Roots blower are increased, the manufacturing cost is increased, more lubricating oil needs to be added by using the external oil tank, the use cost of equipment is increased, and moreover, the problem that a plurality of lubricating oil leaks due to the too many connection pipelines, the failure rate of the blower is increased, the blower cannot stably operate for a long time, and the service life is shortened.
Disclosure of Invention
The screw blower aims at the technical problems and is provided with the built-in lubrication oil way and the built-in oil pump, firstly, the problems that the structure is complex, the installation or maintenance of an operator is complex and complicated due to the fact that the external lubrication pipeline is too many can be avoided, secondly, the weight of the whole machine of the Roots blower is reduced, the occupied area of the whole machine is reduced, the manufacturing cost is reduced, and furthermore, the problem that lubricating oil leaks outwards is avoided due to the fact that the built-in lubrication oil way is adopted, the failure rate of the blower is reduced, the blower can be guaranteed to stably operate for a long time, and the service life of the blower is prolonged.
The technical scheme of the invention is that the screw blower comprises a blower shell, a transmission assembly and an oil supply lubrication heat dissipation assembly;
the blower shell comprises a shell assembly and an oil tank assembly, wherein a driving end oil tank and a supporting end oil tank are respectively fixedly arranged on two sides of the shell assembly, and the driving end oil tank and the supporting end oil tank form the oil tank assembly;
the shell assembly comprises an air inlet shell and an air outlet shell, wherein the air inlet shell and the air outlet shell are of hollow structures, the hollow structures in the air inlet shell and the air outlet shell are combined to form a shell inner cavity, a driving end oil tank inner cavity is formed in the driving end oil tank, and a supporting end oil tank inner cavity is formed in the supporting end oil tank;
the upper part of the air inlet shell is fixedly provided with an air inlet pipe, an air inlet is arranged on the outer side port of the air inlet pipe, the upper part of the air outlet shell is fixedly provided with an air outlet pipe, and the outer side port of the air outlet pipe is provided with an air outlet;
The air inlet pipe is communicated with the inner cavity of the air inlet casing, and the air outlet pipe is communicated with the inner cavity of the air outlet casing;
The transmission assembly comprises a male rotor rotating shaft assembly and a female rotor rotating shaft assembly, the male rotor rotating shaft assembly and the female rotor rotating shaft assembly are fixedly arranged in the blower shell along the axial direction, a male rotor is arranged in the middle of the male rotor rotating shaft assembly, a male rotor driving end rotating shaft section and a male rotor supporting end rotating shaft section are respectively arranged at two ends of the male rotor rotating shaft assembly, the male rotor driving end rotating shaft section axially penetrates through the outer side of the driving end oil tank, a female rotor is arranged in the middle of the female rotor rotating shaft assembly, and a female rotor driving end rotating shaft section and a female rotor supporting end rotating shaft section are respectively arranged at two ends of the female rotor rotating shaft assembly;
The male rotor and the female rotor are respectively provided with a spiral blade surface, and are rotationally connected through the spiral blade surfaces;
the male rotor and the female rotor are in sealing rotary connection with the inner surface of the inner cavity;
The outer side rotating shaft section and the inner side rotating shaft section of the male rotor driving end rotating shaft section are respectively and rotatably connected with the inner cavity of the driving end oil tank and the inner cavity of the machine shell, and the outer side rotating shaft section and the inner side rotating shaft section of the male rotor supporting end rotating shaft section are respectively and rotatably connected with the inner cavity of the supporting end oil tank and the inner cavity of the machine shell;
The outer side rotating shaft section and the inner side rotating shaft section of the female rotor driving end rotating shaft section are respectively and rotatably connected with the inner cavity of the driving end oil tank and the inner cavity of the machine shell, and the outer side rotating shaft section and the inner side rotating shaft section of the female rotor supporting end rotating shaft section are respectively and rotatably connected with the inner cavity of the supporting end oil tank and the inner cavity of the machine shell;
The outer circumferences of the male rotor driving end rotating shaft section, the female rotor driving end rotating shaft section, the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section are respectively provided with a rotor axial gap adjusting and supporting assembly, and axial adjustment can be respectively realized between the two side end surfaces of the male rotor and the female rotor and the two side inner end surfaces of the inner cavity of the shell through the rotor axial gap adjusting and supporting assembly;
The outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section are respectively fixedly provided with a male rotor driving gear and a female rotor driving gear;
The oil supply lubrication heat dissipation assembly comprises a lubrication oil path assembly, an oil pump assembly and a lubrication oil path connecting assembly;
The lubricating oil circuit component is arranged in the blower shell, the oil pump component is arranged in the supporting end oil tank, and the oil pump component is fixedly connected with the inner surface of the supporting end oil tank;
the lubricating oil way connecting component is positioned outside the supporting end oil tank and fixedly connected with one side, close to the male rotor, of the outside of the supporting end oil tank;
the lubricating oil way assembly, the oil pump assembly and the lubricating oil way connecting assembly are communicated with each other.
Preferably, the lubrication oil circuit assembly comprises a male rotor end lubrication oil circuit and a female rotor end lubrication oil circuit, wherein the male rotor end lubrication oil circuit comprises a male rotor driving gear lubrication oil circuit, a male rotor driving end bearing lubrication oil circuit, a male rotor supporting end bearing lubrication oil circuit and a male rotor end transition oil circuit, and the female rotor end lubrication oil circuit comprises a female rotor driving gear lubrication oil circuit, a female rotor driving end bearing lubrication oil circuit, a female rotor supporting end bearing lubrication oil circuit and a female rotor end transition oil circuit;
the male rotor driving gear lubricating oil way, the male rotor driving end bearing lubricating oil way and the male rotor supporting end bearing lubricating oil way are respectively and radially arranged in the driving end oil tank, the exhaust shell and the supporting end oil tank which are close to the male rotor, the male rotor end transition oil way sequentially penetrates through the driving end oil tank, the exhaust shell, the air inlet shell and the supporting end oil tank in an axial direction and is close to the male rotor, one end of the male rotor driving gear lubricating oil way, one end of the male rotor driving end bearing lubricating oil way and one end of the male rotor supporting end bearing lubricating oil way are respectively and fixedly connected with the male rotor end transition oil way, and the other ends of the male rotor driving gear lubricating oil way, the male rotor driving end bearing lubricating oil way and the male rotor supporting end bearing lubricating oil way are respectively aligned with the male rotor driving gear, the rotor axial gap adjusting supporting component on the outer circumference of the male rotor driving end rotating shaft section and the rotor axial gap adjusting supporting component on the outer circumference of the male rotor supporting end rotating shaft section;
The female rotor driving gear lubricating oil way, the female rotor driving end bearing lubricating oil way and the female rotor supporting end bearing lubricating oil way are radially arranged in the driving end oil tank, the exhaust shell and the inside of one side, close to the female rotor, of the supporting end oil tank respectively, the female rotor end transition oil way sequentially penetrates through the driving end oil tank, the exhaust shell, the air inlet shell and the inside of one side, close to the female rotor, of the supporting end oil tank in an axial mode, one ends of the female rotor driving gear lubricating oil way, the female rotor driving end bearing lubricating oil way and the female rotor supporting end bearing lubricating oil way are fixedly connected with the female rotor end transition oil way respectively, and the other ends of the female rotor driving gear lubricating oil way, the female rotor driving end bearing lubricating oil way and the female rotor supporting end bearing lubricating oil way are aligned with the female rotor driving gear and the rotor axial gap adjusting supporting assembly on the outer circumference of the female rotor supporting end rotating shaft section respectively.
Preferably, the oil pump assembly comprises an oil pump, an oil pumping hole is formed in the oil pump, an oil injection channel and an oil suction channel are respectively penetrated and arranged in the supporting-end oil tank from the top position and the bottom position of the outer side of the supporting-end oil tank, the oil pumping hole, the oil suction channel and the inner cavity of the supporting-end oil tank are sequentially communicated, an oil pump oil outlet is formed in the oil pump, the oil pumping hole and the oil pump oil outlet are communicated through an inner pipeline of the oil pump, a fourth oil outlet channel is arranged in the supporting-end oil tank, one ends of the oil pump oil outlet and the fourth oil outlet channel are fixedly connected, and the other end of the fourth oil outlet channel extends to the outer surface of one side, close to the male rotor, of the supporting-end oil tank;
The oil pump is provided with an oil pump inner shell, the outer surface of the oil pump inner shell is fixedly connected with the inner surface of the supporting end oil tank, a fixing plate is fixedly arranged on the inner surface of the oil pump inner shell, a wave spring is fixedly arranged at the other end of the fixing plate, an oil pump rotor is fixedly arranged at the other end of the wave spring, the oil pump rotor is simultaneously and fixedly connected with a male rotor supporting end rotating shaft section in an axial direction, the wave spring is in a compressed state, an oil pump outer fixing seat is fixedly arranged outside the oil pump shaft, a pressure relief channel is arranged in the oil pump inner shell, one end of the pressure relief channel is fixedly connected with a male rotor end transition oil way and a female rotor end transition oil way respectively, and the other end of the pressure relief channel is fixedly connected with one side end face of the fixing plate, which is far away from the wave spring.
Preferably, the lubricating oil way connecting assembly comprises a lubricating oil way connecting seat and a filter, and the lubricating oil way connecting seat is fixedly connected with one side, close to the male rotor, of the outside of the supporting end oil tank;
The filter is fixedly connected with the lubricating oil path connecting seat through the filter connecting seat, one side, close to the supporting end oil tank, of the outer surface of the lubricating oil path connecting seat is provided with an oil inlet channel hole, one end, far away from the oil outlet hole of the oil pump, of the oil inlet channel hole and the fourth oil outlet channel is fixedly connected, the outer surface, located on one side of the filter connecting seat, of the lubricating oil path connecting seat is provided with an oil outlet channel hole, an inner connecting channel of the lubricating oil path connecting seat is arranged between the oil inlet channel hole and the oil outlet channel hole, the oil inlet channel hole and the inner connecting channel of the lubricating oil path connecting seat are mutually communicated, the outer surface, located on one side of the filter connecting seat, of the lubricating oil path connecting seat is provided with an oil return channel hole, and the oil outlet channel hole and the oil return channel hole are respectively mutually communicated with the oil inlet hole and the oil outlet hole of an inner filtering pipeline of the filter;
the inside of the supporting end oil tank is provided with a transition connection channel along the radial direction, and two ends of the transition connection channel penetrate through the outer surface of the supporting end oil tank.
Preferably, the lubricating oil path connecting seat is a low-pressure lubricating oil path connecting seat, a first oil inlet channel is arranged in the lubricating oil path connecting seat, an oil return channel hole is communicated with the first oil inlet channel, a first transition channel and a first oil outlet channel are arranged in the lubricating oil path connecting seat, one ends of the first transition channel and the first oil outlet channel are communicated with each other respectively with the first oil inlet channel, the other ends of the first transition channel are fixedly connected with one end of the transition connecting channel, the other ends of the transition connecting channel are fixedly connected with a female rotor end transition oil path in the supporting end oil tank, and the other ends of the first oil outlet channel are fixedly connected with a male rotor end transition oil path in the supporting end oil tank.
Preferably, one side of the outside of the supporting end oil tank, which is close to the female rotor, is fixedly provided with an oil distribution block, the inside of the oil distribution block is provided with a second buffer channel, the inside of the oil distribution block is provided with a second transition channel and a second oil outlet channel, one ends of the second transition channel and the second oil outlet channel are respectively communicated with the second buffer channel, the other end of the second transition channel and the transition connecting channel are fixedly connected with one end, which is far away from the first transition channel, of the second transition channel, and the other end of the second oil outlet channel is fixedly connected with a female rotor end transition oil circuit inside the supporting end oil tank.
Preferably, an air cooler is fixedly arranged on the outer side of the axial direction of the oil tank at the supporting end, an air cooler cooling fan is fixedly arranged on the air cooler, the air cooler cooling fan is fixedly connected with the rotating shaft section at the supporting end of the female rotor through an air cooler connecting shaft, when the rotating shaft section at the supporting end of the female rotor rotates, the air cooler cooling fan in the air cooler is driven to synchronously rotate, an air cooler oil inlet and an air cooler oil outlet are fixedly arranged at two ends of the air cooler, and an air cooler inner connecting channel is fixedly arranged between the air cooler oil inlet and the air cooler oil outlet;
an oil dividing block is fixedly arranged at one side, close to the female rotor, of the outer part of the oil tank at the supporting end, a second buffer channel is arranged in the oil dividing block, a second transition channel and a second oil outlet channel are arranged in the oil dividing block, and one ends of the second transition channel and the second oil outlet channel are fixedly connected with the second buffer channel respectively;
The lubrication oil way connecting seat is a high-pressure lubrication oil way connecting seat, a first oil inlet channel and a first buffer channel are arranged in the lubrication oil way connecting seat, an oil return channel hole is communicated with the first oil inlet channel, a first transition channel and a first oil outlet channel are arranged in the lubrication oil way connecting seat, one ends of the first transition channel and the first oil outlet channel are fixedly connected with the first buffer channel respectively, the other ends of the first oil outlet channel and a positive rotor end transition oil way in a supporting end oil tank are fixedly connected, one end of the first oil inlet channel is fixedly connected with a first connecting pipe, the other end of the first connecting pipe is fixedly connected with an air cooler oil inlet, a second connecting pipe is fixedly connected with an outer side port of an air cooler oil outlet, the other end of the second connecting pipe is fixedly connected with one end of the second buffer channel, one end of the second transition channel and one end of the second oil outlet channel are far away from the second buffer channel are fixedly connected, and one end of the first transition channel is far away from the first buffer channel.
Preferably, the radial two sides of the bottom of the cavity structure in the air inlet shell and the air outlet shell are respectively provided with a male rotor rotating shaft positioning groove plate and a female rotor rotating shaft positioning groove plate, a male rotor driving end rotating shaft section, a male rotor supporting end rotating shaft section and a female rotor driving end rotating shaft section are respectively and fixedly connected with the male rotor rotating shaft positioning groove plate and the female rotor rotating shaft positioning groove plate in a rotating way, and clearance holes are respectively arranged between the two side end surfaces of the male rotor and the female rotor and the inner side end surfaces of the male rotor rotating shaft positioning groove plate and the female rotor rotating shaft positioning groove plate;
The rotor axial gap adjustment support assembly comprises rotor axial adjustment rings, positioning holes are respectively formed in the middle positions of the two rotor axial adjustment rings, the two positioning holes are respectively fixedly connected with the outer circumferences of the rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, rotor axial adjustment ring support parts are respectively arranged at the two end positions of the rotor axial adjustment rings, support part outer end surfaces and support part inner end surfaces are arranged on the rotor axial adjustment ring support parts, rotor axial adjustment ring elastic parts are fixedly arranged between the two rotor axial adjustment ring support parts, elastic compression sections are arranged at the middle positions of the rotor axial adjustment ring elastic parts, elastic support sections are respectively arranged at the two end positions of the rotor axial adjustment ring elastic parts, the outer end surfaces of the two elastic support sections are respectively fixedly connected with the inner end surfaces of the two support parts, and the inner end surfaces of the two elastic support sections are respectively fixedly connected with the two side end surfaces of the elastic compression sections;
The two rotor axial adjusting rings are respectively and axially fixedly provided with a support bearing near the outer end face of a support part at one end of the male rotor and the outer end face of a bearing inner ring of the support bearing, the outer end face of the support part is axially fixedly connected with the outer end face of a bearing inner ring of the support bearing, the bearing inner ring of the support bearing is respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section are respectively provided with a shaft shoulder, the inner end face of the bearing inner ring of the support bearing is axially and fixedly connected with the shaft shoulder, the two rotor axial adjusting rings are respectively and axially fixedly provided with a thrust bearing far away from the outer end face of the support part at one end of the male rotor and the female rotor, the outer end face of the supporting part is axially and fixedly connected with the inner side end face of the bearing inner ring of the thrust bearing, the bearing inner ring of the thrust bearing is respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, the outer side end face of the bearing inner ring of the thrust bearing is axially and fixedly provided with a rotating shaft sleeve, the two rotating shaft sleeves are respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section in a rotating manner, the rotating shaft sleeve, the bearing inner ring of the thrust bearing, a rotor axial adjusting ring, the bearing inner ring of the supporting bearing and a shaft shoulder are sequentially and axially locked, a clearance hole is formed between the rotating shaft sleeve and the shaft shoulder, and the rotor axial adjusting ring is in an axial compression state;
Bearing lubrication components are axially and fixedly arranged between the inner side end face of the bearing outer ring of the thrust bearing and the outer side end face of the bearing outer ring of the supporting bearing, the inner side end faces of the two bearing lubrication components are respectively and fixedly connected with a male rotor rotating shaft positioning groove plate and a female rotor rotating shaft positioning groove plate in an axial direction, a labyrinth seal sleeve is axially and fixedly arranged on the inner side end face of the bearing outer ring of the supporting bearing, the inner side end face of the bearing outer ring of the supporting bearing is axially and fixedly connected with the outer side end face of the labyrinth seal sleeve, the two labyrinth seal sleeves are respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, the inner side end faces of the two labyrinth seal sleeves are respectively and axially fixedly connected with the male rotor rotating shaft positioning groove plate and the female rotor rotating shaft positioning groove plate, the outer side end face of the bearing outer ring of the thrust bearing is axially fixedly provided with a bearing fixing sleeve, and the bearing fixing sleeve is simultaneously and axially fixedly connected with the outer side end face of the bearing lubricating assembly;
The rotor axial clearance adjustment support assembly on the outer circumference of the male rotor support end rotating shaft section and the female rotor support end rotating shaft section consists of a thrust bearing and a wave spring respectively;
The outer circumference of the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section are respectively provided with a shaft shoulder, the inner side end face of the bearing inner ring of the thrust bearing is axially fixedly connected with the shaft shoulder, the inner side end face of the bearing outer ring of the thrust bearing is axially fixedly provided with a labyrinth gland, the inner side end face of the bearing outer ring of the thrust bearing is axially fixedly connected with the outer side end face of the labyrinth gland, the two labyrinth gland is respectively fixedly connected with the outer circumference of the male rotor driving end rotating shaft section and the outer circumference of the female rotor driving end rotating shaft section, the inner side end faces of the two labyrinth gland are respectively and axially fixedly connected with the male rotor rotating shaft positioning groove plate and the female rotor rotating shaft positioning groove plate, the outer side end faces of the thrust bearing are respectively and axially fixedly connected with the inner side end faces of the waveform springs, the outer side end faces of the waveform springs are respectively and axially fixedly connected with the outer circumference of the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section, the outer side end faces of the waveform springs are respectively and axially fixedly connected with the bearing fixing sleeves at the positions of the bearing inner ring of the thrust bearing, the two waveform springs are respectively and axially fixedly connected with the inner side end faces of the supporting end rotating shaft section and the bearing inner ring of the bearing, and the waveform springs are axially locked between the waveform springs and the bearing inner ring is axially locked in sequence.
Preferably, the bearing lubrication assembly comprises a bearing lubrication sleeve, wherein a mounting positioning hole is formed in the middle of the bearing lubrication sleeve, an inclined plane is formed at the joint of the inner surface of the mounting positioning hole and the end surfaces of the two sides of the bearing lubrication sleeve, a third oil inlet channel is formed in the position, close to the outer side, of the bearing lubrication sleeve along the axial direction, and the outer side ports of the third oil inlet channels in the two bearing lubrication sleeves are fixedly connected with one ends, far away from a male rotor end transition oil channel and a female rotor end transition oil channel, of a male rotor drive end bearing lubrication oil channel and a female rotor drive end bearing lubrication oil channel respectively;
The inner side port of the third oil inlet channel is connected with a buffer connection channel towards the direction of the installation positioning hole, the buffer connection channel is arranged in the bearing lubrication sleeve along the radial direction, an oil injection channel is fixedly arranged between the inclined plane and the two axial ends, close to the inner side, of the buffer connection channel, and the buffer connection channel, the oil injection channel and the inclined plane penetrate through each other.
Preferably, the labyrinth gland on the outer circumferences of the rotary shaft section of the driving end of the male rotor and the rotary shaft section of the driving end of the female rotor are respectively provided with an oil throwing hole, and the inner surface of the exhaust casing is fixedly provided with an oil return groove at the position close to the oil throwing hole;
The labyrinth gland sleeves of the outer circumferences of the male rotor support end rotating shaft section and the female rotor support end rotating shaft section are respectively provided with an oil throwing hole, and the inner surface of the air inlet shell is fixedly provided with an oil return groove at a position close to the oil throwing hole;
an oil return groove is fixedly formed in the inner surface of the driving end oil tank at a position close to the male rotor driving gear and the female rotor driving gear;
The inner surface of the driving end oil tank is respectively and fixedly provided with an oil return groove at the positions close to the thrust bearing and the support bearing of the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section;
the inner surface of the supporting end oil tank is respectively and fixedly provided with an oil return groove at the positions close to the thrust bearings at the outer circumferences of the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section;
The internal surface of air-blower casing is fixed and is equipped with the oil return pipeline, and the oil return pipeline runs through drive end oil tank, exhaust casing, inlet casing, the internal surface of support end oil tank in proper order, and the oil return pipeline is located the one end of support end oil tank internal surface and the internal cavity intercommunication of support end oil tank each other, and oil return groove is kept away from respectively and gets rid of oilhole, sun rotor drive gear, female rotor drive gear, thrust bearing, support bearing's one end respectively and returns oil between the pipeline each other.
The beneficial effects of the invention are as follows:
1. The lubrication oil way is arranged in the blower shell, so that the blower is prevented from being externally connected with excessive lubrication pipelines, the installation and maintenance of operators are more convenient, the weight of the whole blower is reduced, the occupied area of the whole blower is reduced, the manufacturing cost is reduced, and meanwhile, the lubrication oil way is arranged in the blower shell, so that the problem of outward leakage of lubricating oil is avoided;
And, inside to thrust bearing, support bearing, the drive gear of air-blower casing has set up respectively alone female rotor drive end bearing lubrication circuit, female rotor drive gear lubrication circuit, female rotor support end bearing lubrication circuit, male rotor drive gear lubrication circuit, male rotor drive end bearing lubrication circuit, male rotor support end bearing lubrication circuit, can carry out accurate oil spout lubrication to thrust bearing, support bearing, the drive gear of the inside of air-blower casing, guaranteed thrust bearing, support bearing, drive gear have sufficient lubrication effect.
2. The oil pump assembly is arranged in the oil tank at the supporting end, the inner surface of the oil pump inner shell is fixedly provided with a fixed plate, the other end of the fixed plate is fixedly provided with a wave spring, the other end of the wave spring is fixedly provided with an oil pump rotor, the oil pump rotor is simultaneously and axially fixedly connected with the rotating shaft at the supporting end of the male rotor, the wave spring is continuously in a compressed state, under the normal state, the fixed plate plays a good sealing effect on lubricating oil in a lubricating oil way under the elastic force of the wave spring, when the oil pressure in the lubricating oil way is too high, lubricating oil in the lubricating oil way pushes the fixed plate on the oil pump assembly, the fixed plate and the inner surface of the oil pump inner shell are separated from each other, and the lubricating oil flows into the oil tank at the supporting end from a gap between the fixed plate and the oil pump inner shell, so that self-backflow pressure relief is realized.
And, because the oil pump is direct with sun rotor support end rotation axis section fixed connection, by its operation of sun rotor support end rotation axis section drive, need not external oil pump motor alone, avoid because oil pump motor breaks down, lead to the screw blower unable normal operating's problem because of the trouble, reduced the holistic fault rate of equipment.
3. Through setting up the combination use of low pressure lubrication oil circuit connecting seat, filter and branch oil block, to the lubrication heat dissipation demand of inside spare part when satisfying screw blower maximum exhaust pressure not higher than 140kPa, the oil pump is with the inside of the lubrication oil circuit connecting seat of sucking the lubricating oil in the supporting end oil tank, because the material that lubrication oil circuit connecting seat used is cast aluminum alloy material, when lubrication oil enters into inside the lubrication oil circuit connecting seat, can take away the heat of lubricating oil self part, play the effect of heat dissipation cooling to lubrication oil, then enter into the inside of filter through lubrication oil circuit connecting seat internal connection passageway, the filter carries out effective filtration to lubrication oil, impurity doped in the lubrication oil can be filtered, guaranteed the cleanliness of lubrication oil, prolonged the life cycle of lubrication oil, the lubrication oil after the filtration enters into the inside of first oil feed passageway through the oil return passageway hole, at this moment, lubrication oil circuit connecting seat can carry out the secondary heat dissipation cooling to the lubrication oil that gets into;
Part of the lubricating oil in the first oil inlet channel enters the second transition channel, the lubricating oil in the second transition channel sequentially passes through the second buffer channel, the second oil outlet channel and the female rotor end transition oil channel to enter the female rotor driving gear lubricating oil channel, the female rotor driving end bearing lubricating oil channel and the female rotor supporting end bearing lubricating oil channel respectively, the driving gear, the thrust bearing and the supporting bearing on one side of the female rotor end lubricating oil channel are lubricated by oil injection respectively, and the other part of the lubricating oil sequentially passes through the first oil outlet channel and the male rotor end transition oil channel to enter the male rotor driving gear lubricating oil channel, the male rotor driving end bearing lubricating oil channel and the male rotor supporting end bearing lubricating oil channel respectively, and the driving gear, the thrust bearing and the supporting bearing on one side of the male rotor end lubricating oil channel are lubricated by oil injection respectively;
Because the second transition channel, the second oil outlet channel respectively and the position of second buffering channel mutually perpendicular angle setting, when lubricating oil loops through second transition channel, second buffering channel, second oil outlet channel, the perpendicular angle between second transition channel, second oil outlet channel and the second buffering channel can cushion the pressure boost to lubricating oil, can increase the supply quantity of male rotor end lubricating oil circuit one side lubricating oil, avoid female rotor end lubricating oil circuit because with the interval distance between the lubricating oil circuit connecting seat far away, lubricating oil spout pressure is insufficient, lead to female rotor end lubricating oil circuit one side's driving gear, thrust bearing, the problem that the lubricating oil quantity is insufficient appears in supporting bearing, further guaranteed that male rotor end lubricating oil circuit one side and female rotor end lubricating oil circuit one side's driving gear, thrust bearing, supporting bearing all have sufficient lubrication radiating effect.
4. Through setting up the combination use of high-pressure lubrication oil circuit connecting seat, the filter, forced air cooler and branch oil piece, the exhaust pressure of satisfying the screw blower is higher than 140kPa to the lubrication heat dissipation demand of inside spare part, the oil pump is with the inside of the lubrication oil circuit connecting seat of sucking the lubricating oil in the supporting end oil tank, because the material that lubrication oil circuit connecting seat used is cast aluminum alloy material, when lubrication oil enters into inside the lubrication oil circuit connecting seat, can take away the heat of lubricating oil self part, play the effect of heat dissipation cooling to lubrication oil, then enter into the inside of filter through lubrication oil circuit connecting seat internal connection passageway, the filter carries out effective filtration to lubrication oil, impurity doped in the lubrication oil can be filtered, guaranteed the cleanliness of lubrication oil, prolonged the life cycle of lubrication oil, the lubrication oil after the filtration enters into the inside of first oil feed passageway through the oil return channel hole, at this moment, lubrication oil circuit connecting seat can carry out the secondary heat dissipation cooling to the lubrication oil that gets into.
The lubricating oil in the first oil inlet channel enters the air cooler internal connecting channel through the first connecting pipe, at this moment, the air cooler cooling fan carries out air cooling on the lubricating oil in the air cooler internal connecting channel, the lubricating oil after cooling enters the second buffer channel through the second connecting pipe, the lubricating oil in the second buffer channel, part of the lubricating oil sequentially passes through the second oil outlet channel and the female rotor end transition oil channel to enter the female rotor driving gear lubricating oil channel, the female rotor driving end bearing lubricating oil channel and the female rotor supporting end bearing lubricating oil channel respectively, the driving gear, the thrust bearing and the supporting bearing on one side of the female rotor end lubricating oil channel are subjected to oil injection lubrication, and the other part of the lubricating oil sequentially passes through the second transition channel, the transition connecting channel, the first transition channel, the first buffer channel, the first oil outlet channel and the male rotor end transition oil channel to enter the male rotor driving gear lubricating oil channel, the male rotor driving end bearing lubricating oil channel and the male rotor supporting end bearing lubricating oil channel respectively, and the driving gear, thrust bearing and supporting bearing on one side of the male rotor end lubricating oil channel respectively carry out oil injection lubrication, and when the lubricating oil sequentially passes through the first transition channel, the first buffer channel and the first oil outlet channel and the first connecting seat can carry out cooling on the lubricating oil by connecting seat and cooling;
The second transition channel and the second oil outlet channel are respectively arranged at the vertical angles with the positions of the second buffer channel, so that the lubricating oil can be buffered and pressurized when the lubricating oil passes through, and the first transition channel and the first oil outlet channel are respectively arranged at the vertical angles with the positions of the first buffer channel, so that the lubricating oil can be buffered and pressurized again when the lubricating oil passes through, thus, the lubricating oil in the male rotor end lubricating oil way and the female rotor end lubricating oil way can be buffered and pressurized, the situation that the flowing stroke distance of the lubricating oil is overlong due to the connection of an air cooler, and the condition that the lubricating oil pressure in the male rotor end lubricating oil way and the female rotor end lubricating oil way is too low is avoided, and further, the driving gear, the thrust bearing and the support bearing on one side of the male rotor end lubricating oil way and the female rotor end lubricating oil way are provided with enough lubricating oil pressure is further ensured;
In addition, the air cooler directly drives and operates through the rotating shaft section of the female rotor supporting end, an external air cooler motor is not required, the problem that the air cooler cannot normally operate due to the fact that the external air cooler motor breaks down is avoided, the integral fault rate of equipment is reduced, and the sufficient heat dissipation and cooling effects of parts in the blower are further guaranteed.
5. Through fixedly being equipped with bearing lubrication sleeve between thrust bearing and the supporting bearing on the male and female rotor drive end rotation axis section, lubricating oil is through male rotor drive end bearing lubrication oil circuit and female rotor drive end bearing lubrication oil circuit entering into respectively the inside buffering connecting channel of bearing lubrication sleeve of male rotor drive end rotation axis section and female rotor drive end rotation axis section one side, then outwards spout through the oil spout passageway of buffering connecting channel both sides, carry out independent oil spout lubrication to thrust bearing and supporting bearing respectively, secondly, because buffering connecting channel and oil spout passageway are a plurality of, and evenly distributed along circumferencial direction in the inside of bearing lubrication sleeve, can further increase thrust bearing and supporting bearing lubrication radiating effect, guarantee thrust bearing and supporting bearing receive incessant oil spout lubrication cooling when rotatory, moreover, because fixedly connected with a plurality of buffering connecting channels on the distribution passageway respectively, when one of them oil spout passageway receives the jam because of trouble, other oil spout passageway also can continue to carry out oil spout lubrication to thrust bearing and supporting bearing, further guaranteed thrust bearing and supporting bearing's stability of rotating for a long time, the degree of wear when rotating, further noise when having reduced thrust bearing and supporting bearing, further when running equipment, service life is prolonged.
6. The device comprises a lubricating oil path connecting seat, an oil dividing block, a male rotor end lubricating oil path, a female rotor end lubricating oil path, a bearing lubricating sleeve, a channel hole, a detection oil path and a detection channel, wherein the channel hole, the detection oil path, the detection channel and the detection channel can be internally provided with related detection devices such as a temperature sensor and a pressure sensor according to requirements, the state of lubricating oil in the corresponding oil path is monitored in real time, and when one oil path breaks down, the device can be found out at the first time and can be solved in time, serious anomalies caused by oil pressure or oil temperature in the one oil path and the like can be avoided, the failure is not found out in time, the accumulated time of the faults is overlong, the maintenance difficulty and the maintenance cost are increased, and even serious safety accidents occur.
7. The male rotor driving gear is locked by installing a gear locking device, the gear locking device locks a first gear locking disc and a second gear locking disc on conical surfaces of the gear locking discs at two ends of the male rotor driving gear respectively through a plurality of locking screws, when the first gear locking disc and the second gear locking disc are pushed to the maximum outer diameter of a third conical surface, at the moment, the first gear locking disc and the second gear locking disc are integrally and axially attached to the conical surface of a driving gear fixing sleeve, the locking screws are continuously screwed, the two gear locking discs are continuously locked towards the inner side of the conical surface of the driving gear fixing sleeve, the inner diameter of the driving gear fixing sleeve is forced to be reduced, and finally the driving gear fixing sleeve is completely held tightly on a rotating shaft section of a driving end of the male rotor;
According to the design, the conical surfaces of the two gear locking discs are always in an integral axial fit state with the conical surfaces of the gear locking discs in the locking process, and the through holes in the end surface grooves of the two gear locking discs and the driving gear are uniformly distributed on the axial end surfaces of the gear locking discs and the end surface grooves of the driving gear, so that the driving gear is uniformly stressed all the time in the circumferential direction in the locking process, the deformation of the driving gear of the male rotor is avoided, the better locking between the driving gear of the male rotor and the rotating shaft section of the male rotor is ensured, the effective engagement between the driving gear of the male rotor and the driving gear of the female rotor is ensured, the noise and the vibration amplitude of the screw blower in the operation are reduced, the failure rate of the blower is reduced, the working efficiency is increased, and the service life of the blower is prolonged.
8. After the installation of the parts such as the thrust bearing, the support bearing, the wave spring and the like on the rotating shaft section of the male and female rotors is finished through the installation of the rotor axial adjusting ring, an operator can directly adjust the axial gap size of the male and female rotors, namely, the gap size between the outer end face of the male and female rotor on one side of the driving end and the inner end face of the rotating shaft positioning groove plate on the same side is respectively measured by a gap measuring instrument;
Because rotor axial adjusting ring and wave spring are in axial compression state all the time to the axial force that extrusion rotor axial adjusting ring and wave spring required is greater than the axial force that the air-blower operation or remove in-process produced, and clearance size between the outside terminal surface of negative and positive rotor drive end and the inboard terminal surface of rotation axis positioning slot board is accomplished after, can not take place undulantly at will, consequently need not to use axial locking device to lock axial adjusting ring and wave spring in addition, guaranteed the stability of screw-blower long-time operation, reduced the fault rate, increase of service life.
9. The fan is characterized in that a first fixed end face, a second fixed end face and a standby fixed end face are arranged at a plurality of positions on the outer surface of the fan shell, when the fan is installed, the fan can be supported and fixed in a multi-direction reinforcing manner through the first fixed end face, the second fixed end face and the standby fixed end face, the fan is further installed in a narrow space or in a severe environment, the stability of the fan is further improved, the three-dimensional multi-point position uniform stress of the fan shell is ensured, the shaking amplitude of the fan during operation is further reduced, the damage to the fan shell and internal parts is reduced, the failure rate of the fan is reduced, the maintenance cost is reduced, and the service life of the fan is prolonged.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is another perspective view of the present invention;
FIG. 3 is a front view of the present invention using a low pressure lubrication circuit connection base;
FIG. 4 is a front view of the invention using a high pressure lubrication circuit connection;
FIG. 5 is a cross-sectional view of the T-T of FIG. 3 in accordance with the present invention;
FIG. 6 is a cross-sectional view of the T '-T' of FIG. 4 in accordance with the present invention;
FIG. 7 is a cross-sectional view Z-Z of FIG. 3 in accordance with the present invention;
FIG. 8 is an enlarged view of the invention at A+ of FIG. 7;
FIG. 9 is an enlarged view of the invention at E in FIG. 5;
FIG. 10 is a cross-sectional view of the U '-U' of FIG. 4 in accordance with the present invention;
FIG. 11 is a sectional view of the P-P of FIG. 4 in accordance with the present invention;
FIG. 12 is a block diagram of the drive end of the present invention;
FIG. 13 is an enlarged view of FIG. 5A in accordance with the present invention;
FIG. 14 is an enlarged view of FIG. 12 at C in accordance with the present invention;
FIG. 15 is an enlarged view of the invention at B in FIG. 5;
FIG. 16 is an enlarged view of the invention at D in FIG. 5;
FIG. 17 is an enlarged view of the invention at D in FIG. 6;
FIG. 18 is a schematic view of the installation of the gear lock assembly with the male rotor drive gear of the present invention;
FIG. 19 is a radial cross-sectional view of a male rotor drive gear of the present invention;
FIG. 20 is a radial cross-sectional view of a first gear locking disc of the present invention;
FIG. 21 is a radial cross-sectional view of a second gear locking disc of the present invention;
FIG. 22 is an enlarged view of the invention at F in FIG. 19;
FIG. 23 is an enlarged view of the invention at G in FIG. 20;
FIG. 24 is an enlarged view of the portion H of FIG. 21 in accordance with the present invention;
FIG. 25 is a perspective view of a rotor axial adjustment ring of the present invention;
FIG. 26 is a front view of a rotor axial adjustment ring of the present invention;
FIG. 27 is an enlarged view of the invention at J in FIG. 26;
FIG. 28 is an enlarged view of the invention at K of FIG. 5;
FIG. 29 is a perspective view of a low pressure lubrication connection block used in the present invention;
FIG. 30 is a front view of a low pressure lubrication connection block used in the present invention;
FIG. 31 is a perspective view of a high pressure lubrication oil circuit connection block used in the present invention;
FIG. 32 is a front view of a high pressure lubrication oil circuit connection block used in the present invention;
FIG. 33 is a cross-sectional view of Y-Y in FIG. 30 in accordance with the present invention;
FIG. 34 is a cross-sectional view L-L of FIG. 32 in accordance with the present invention;
FIG. 35 is a cross-sectional view of M-M of FIG. 32 in accordance with the present invention;
FIG. 36 is a left side view of the connecting seat for the lubrication circuit of the present invention;
FIG. 37 is a right side view of the oil circuit connection base of the present invention;
FIG. 38 is an enlarged view of the invention at N in FIG. 10;
FIG. 39 is a cross-sectional view of the Q-Q of FIG. 11 in accordance with the present invention;
FIG. 40 is a cross-sectional view of R-R of FIG. 11 in accordance with the present invention;
FIG. 41 is a cross-sectional view of the U-U of FIG. 3 in accordance with the present invention;
FIG. 42 is an enlarged view of the invention at S in FIG. 41;
FIG. 43 is an enlarged view of the invention at T in FIG. 41;
FIG. 44 is a perspective view of a bearing lubrication assembly according to the present invention;
FIG. 45 is a front view of a bearing lubrication assembly of the present invention;
FIG. 46 is a cross-sectional view V-V of FIG. 45 in accordance with the present invention;
FIG. 47 is an enlarged view of the invention at W in FIG. 46;
FIG. 48 is a top view of a bearing lubrication assembly according to the present invention;
FIG. 49 is a cross-sectional view X-X of FIG. 48 in accordance with the present invention;
FIG. 50 is a schematic diagram of the distribution of lubrication circuits when a low pressure lubrication circuit connection is used in the present invention;
Fig. 51 is a schematic diagram showing the distribution of the lubrication oil path when the high-pressure lubrication oil path connecting seat is used in the present invention.
The symbols in the drawings illustrate:
1. An oil tank assembly; 101. a driving end oil tank; 10101. a first fixed end face; 10102. a threaded hole; 102. a supporting end oil tank; 10201. a second fixed end face; 10202. a threaded hole; 10203. a standby fixed end face; 10204. an oil pump assembly mounting hole; 10205. a transition connection channel; 10206. a fourth oil outlet passage; 2. a housing assembly; 201. an exhaust casing; 20101. an exhaust port; 20102. reinforcing the fixing plate; 20103. a connecting flange; 20104. an exhaust pipe; 202. an air intake housing; 20201. an air inlet; 20202. a standby fixed end face; 20203. a threaded hole; 20204. reinforcing the fixing plate; 20205. a connecting flange; 20206. an air inlet pipe; 3. a lubrication oil path connecting assembly; 301. a lubrication oil way connecting seat; 30101. an oil inlet passage hole; 30102. an oil outlet passage hole; 30103. an oil return passage hole; 30104. locking the fixing hole; 30105. a filter connecting seat; 30106. a first oil inlet passage; 30107. a first buffer channel; 30108. a standby channel; 30109. a first transition passage; 30110. a first oil outlet passage; 30111. the lubrication oil way is connected with the internal connecting channel of the seat; 30112. a first passage hole; 30113. a second passage hole; 302. a filter; 4. an oil pump assembly; 401. an oil pump; 402. a fixing plate; 403. an oil pump outer fixing seat; 404. an oil pump rotor; 405. an oil pumping hole; 406. oil pump oil outlet hole; 408. an oil pump inner housing; 409. a pressure relief channel; 5. a male rotor rotating shaft assembly; 501. a male rotor; 502. a male rotor drive end rotating shaft section; 503. a male rotor support end rotating shaft section; 6. a female rotor rotating shaft assembly; 601. a female rotor; 602. a female rotor drive end rotation shaft section; 603. a female rotor support end rotating shaft section; 7. a bearing lubrication assembly; 701. a third oil inlet passage; 702. an oil injection passage; 703. a buffer connection channel; 704. an inclined plane; 705. a distribution channel; 706. a detection channel; 707. a buffer chamber; 708. installing a positioning hole; 709. bearing lubricating sleeve; 8. a rotor axial adjustment ring; 801. a rotor axial adjustment ring support; 80101. the outer end surface of the supporting part; 80102. an inner end surface of the support part; 802. a rotor axial adjustment ring elastic part; 80201. an elastic support section; 80202. an elastic compression section; 803. an airflow cavity; 804. positioning holes; 805. chamfering; 9. a gear locking assembly; 901. a first gear locking plate; 90101. a first through hole; 902. a second gear locking plate; 90201. a threaded hole; 903. positioning holes of the gear locking disc; 904. the conical surface of the gear locking disc; 90401. a first conical surface; 90402. a second conical surface; 905. chamfering; 10. a male rotor drive gear; 1001. a drive gear fixing sleeve; 1002. a second through hole; 1003. a driving gear end surface groove; 1004. the conical surface of the driving gear fixing sleeve; 100401. a third conical surface; 100402. a fourth conical surface; 1005. a driving gear fixing hole; 11. a lubrication oil circuit assembly; 1101. a male rotor end lubricating oil path; 110101. a male rotor driving gear lubrication oil path; 110102. bearing lubrication oil way of male rotor driving end; 110103. bearing lubrication oil way of the supporting end of the male rotor; 110104. a male rotor end transition oil path; 1102. female rotor end lubrication oil path; 110201. female rotor driving gear lubrication oil path; 110202. bearing lubrication oil way of female rotor driving end; 110203. bearing lubrication oil way of female rotor support end; 110204. a female rotor end transition oil path; 1103. detecting an oil path; 1107. an oil nozzle; 12. a gear washer; 13. rotating the shaft sleeve; 14. a thrust bearing; 15. a bearing fixing sleeve; 17. a hollow positioning pin shaft; 1701. a through hole; 18. dividing oil blocks; 1801. a first passage hole; 1802. a second passage hole; 1803. a second buffer channel; 1804. a second transition passage; 1805. a second oil outlet passage; 19. sealing the screw plug; 20. a locking screw; 21. an oiling channel; 2101. oiling the filter element; 22. an oil suction passage; 2201. an oil absorption filter hole; 23. a seal ring; 24. a wave spring; 25. the driving end is fixed with a supporting seat; 2501. a mounting hole; 26. the supporting end is fixed with a supporting seat; 2601. a mounting hole; 28. a clearance hole; 29. a support bearing; 30. a female rotor drive gear; 31. a blower housing; 3101. positioning groove plates of a male rotor rotating shaft; 3102. positioning groove plates of the female rotor rotating shaft; 3103. an inner cavity of the casing; 3104. an inner cavity of the driving end oil tank; 3105. the inner cavity of the oil tank at the supporting end; 32. a shaft shoulder; 33. a labyrinth seal sleeve; 3301. an oil throwing hole; 34. a rotor axial clearance adjustment support assembly; 35. an air cooler; 3501. an oil inlet of the air cooler; 3502. an oil outlet of the air cooler; 3503. the air cooler is internally connected with the channel; 3504. a radiator fan of the air cooler; 36. an oil return pipeline; 37. an oil return groove; 38. a first connection pipe; 39. a second connection pipe; 40. the air cooler is connected with the shaft.
Detailed Description
The invention is further described below with reference to examples.
As can be seen from fig. 1 to 51, the screw blower comprises a blower housing 31, a transmission assembly and an oil supply, lubrication and heat dissipation assembly, wherein the blower housing 31 comprises a housing assembly 2 and an oil tank assembly 1, two sides of the housing assembly 2 are respectively fixedly provided with a driving end oil tank 101 and a supporting end oil tank 102, and the driving end oil tank 101 and the supporting end oil tank 102 form the oil tank assembly 1.
The casing assembly 2 comprises an air inlet casing 202 and an air outlet casing 201, wherein the air inlet casing 202 and the air outlet casing 201 are of hollow structures, the hollow structures inside the air inlet casing 202 and the air outlet casing 201 are combined to form a casing inner cavity 3103, a driving end oil tank inner cavity 3104 is arranged inside the driving end oil tank 101, a supporting end oil tank inner cavity 3105 is arranged inside the supporting end oil tank 102, and lubricating oil is filled inside the supporting end oil tank inner cavity 3105.
An intake pipe 20206 is fixedly arranged at the upper part of the intake casing 202, an intake port 20201 is arranged at an outer side port of the intake pipe 20206, an exhaust pipe 20104 is fixedly arranged at the upper part of the exhaust casing 201, and an exhaust port 20101 is arranged at an outer side port of the exhaust pipe 20104.
The intake pipe 20206 and the housing inner cavity 3103 inside the intake housing 202 communicate with each other, and the exhaust pipe 20104 and the housing inner cavity 3103 inside the exhaust housing 201 communicate with each other.
The transmission assembly comprises a male rotor rotating shaft assembly 5 and a female rotor rotating shaft assembly 6, the male rotor rotating shaft assembly 5 and the female rotor rotating shaft assembly 6 are fixedly arranged in the blower housing 31 along the axis direction, a male rotor 501 is arranged at the middle position of the male rotor rotating shaft assembly 5, a male rotor driving end rotating shaft section 502 and a male rotor supporting end rotating shaft section 503 are respectively arranged at the two ends of the male rotor rotating shaft assembly 5, the male rotor driving end rotating shaft section 502 axially penetrates through the outer side of the driving end oil tank 101, a female rotor 601 is arranged at the middle position of the female rotor rotating shaft assembly 6, and a female rotor driving end rotating shaft section 602 and a female rotor supporting end rotating shaft section 603 are respectively arranged at the two ends of the female rotor rotating shaft assembly 6.
The male rotor 501 and the female rotor 601 are respectively provided with spiral blade surfaces, and the male rotor 501 and the female rotor 601 are rotationally connected through the spiral blade surfaces.
The male rotor 501 and the female rotor 601 are in sealing rotational connection with the inner surface of the inner cavity.
The outer and inner rotary shaft sections of the male rotor driving end rotary shaft section 502 are respectively and rotatably connected with the driving end oil tank inner cavity 3104 and the casing inner cavity 3103, and the outer and inner rotary shaft sections of the male rotor supporting end rotary shaft section 503 are respectively and rotatably connected with the supporting end oil tank inner cavity 3105 and the casing inner cavity 3103.
The outer and inner rotary shaft sections of the female rotor driving end rotary shaft section 602 are respectively and rotatably connected with the driving end oil tank inner cavity 3104 and the casing inner cavity 3103, and the outer and inner rotary shaft sections of the female rotor supporting end rotary shaft section 603 are respectively and rotatably connected with the supporting end oil tank inner cavity 3105 and the casing inner cavity 3103.
The outer circumferences of the male rotor driving end rotating shaft section 502, the female rotor driving end rotating shaft section 602, the male rotor supporting end rotating shaft section 503 and the female rotor supporting end rotating shaft section 603 are respectively provided with a rotor axial clearance adjustment supporting component 34, and axial adjustment can be respectively realized between the two side end surfaces of the male rotor 501 and the female rotor 601 and the two side inner end surfaces of the inner cavity 3103 of the casing through the rotor axial clearance adjustment supporting component 34.
The outer circumferences of the male rotor driving end rotation shaft section 502 and the female rotor driving end rotation shaft section 602 are fixedly provided with the male rotor driving gear 10 and the female rotor driving gear 30, respectively.
The oil supply lubrication heat dissipation assembly comprises a lubrication oil path assembly 11, an oil pump assembly 4 and a lubrication oil path connecting assembly 3.
The lubricating oil path assembly 11 is arranged in the blower housing 31, the oil pump assembly 4 is arranged in the supporting end oil tank 102, and the oil pump assembly 4 is fixedly connected with the inner surface of the supporting end oil tank 102.
The lubricating oil path connecting component 3 is positioned outside the supporting end oil tank 102, and the lubricating oil path connecting component 3 is fixedly connected with one side, close to the male rotor 501, of the outside of the supporting end oil tank 102.
The lubricating oil path assembly 11, the oil pump assembly 4 and the lubricating oil path connecting assembly 3 are communicated with each other.
The lubrication oil path assembly 11 includes a male rotor end lubrication oil path 1101 and a female rotor end lubrication oil path 1102, the male rotor end lubrication oil path 1101 includes a male rotor drive gear lubrication oil path 110101, a male rotor drive end bearing lubrication oil path 110102, a male rotor support end bearing lubrication oil path 110103, a male rotor end transition oil path 110104, and the female rotor end lubrication oil path 1102 includes a female rotor drive gear lubrication oil path 110201, a female rotor drive end bearing lubrication oil path 110202, a female rotor support end bearing lubrication oil path 110203, and a female rotor end transition oil path 110204.
The male rotor driving gear lubricating oil path 110101, the male rotor driving end bearing lubricating oil path 110102 and the male rotor supporting end bearing lubricating oil path 110103 are radially arranged in the driving end oil tank 101, the exhaust casing 201 and the supporting end oil tank 102 near the male rotor 501 respectively, the male rotor end transition oil path 110104 sequentially axially penetrates through the driving end oil tank 101, the exhaust casing 201, the air inlet casing 202 and the supporting end oil tank 102 near the male rotor 501 respectively, one ends of the male rotor driving gear lubricating oil path 110101, the male rotor driving end bearing lubricating oil path 110102 and the male rotor supporting end bearing lubricating oil path 110103 are fixedly connected with the male rotor end transition oil path 110104 respectively, and the other ends of the male rotor driving gear lubricating oil path 110101, the male rotor driving end bearing lubricating oil path 110102 and the male rotor supporting end bearing lubricating oil path 110103 are aligned with the male rotor driving gear 10, the rotor axial gap adjusting support assembly 34 on the outer circumference of the male rotor driving end rotating shaft section 502 and the rotor axial gap adjusting support assembly 34 on the outer circumference of the male rotor supporting end rotating shaft section 503 respectively.
The female rotor driving gear lubricating oil path 110201, the female rotor driving end bearing lubricating oil path 110202 and the female rotor supporting end bearing lubricating oil path 110203 are radially arranged in the driving end oil tank 101, the exhaust casing 201 and the supporting end oil tank 102 near the female rotor 601 respectively, the female rotor end transition oil path 110204 sequentially axially penetrates through the driving end oil tank 101, the exhaust casing 201, the air inlet casing 202 and the supporting end oil tank 102 near the female rotor 601, one ends of the female rotor driving gear lubricating oil path 110201, the female rotor driving end bearing lubricating oil path 110202 and the female rotor supporting end bearing lubricating oil path 110203 are fixedly connected with the female rotor end transition oil path 110204 respectively, and the other ends of the female rotor driving gear lubricating oil path 110201, the female rotor driving end bearing lubricating oil path 110202 and the female rotor supporting end bearing lubricating oil path 110203 are aligned with the female rotor axial gap adjusting support assembly 34 on the outer circumference of the female rotor driving gear 30, the female rotor driving end rotating shaft section 602 and the rotor axial gap adjusting support assembly 34 on the outer circumference of the female rotor supporting end rotating shaft section 603 respectively.
The thrust bearings 14 and the supporting bearings 29 on the outer circumferences of the male rotor driving gear and the male rotor driving end rotating shaft section and the thrust bearings 14 on the outer circumferences of the male rotor supporting end rotating shaft section respectively form independent lubrication heat dissipation channels, accurate oil injection of the parts is achieved, the parts can be guaranteed to obtain sufficient lubrication cooling effects, the service life of the parts is prolonged, noise generated when the blower operates is reduced, and particularly, the fact that the injection ports of the female rotor driving gear lubricating oil circuit 110201 and the male rotor driving gear lubricating oil circuit 110101 are respectively aligned with tooth crest positions after the driving gears are separated from each other is required to be explained.
The male rotor driving gear lubricating oil circuit 110101, the male rotor driving end bearing lubricating oil circuit 110102, the male rotor supporting end bearing lubricating oil circuit 110103, the female rotor driving gear lubricating oil circuit 110201, the female rotor driving end bearing lubricating oil circuit 110202 and the female rotor supporting end bearing lubricating oil circuit 110203 are respectively connected with each other and are provided with a detection oil circuit 1103, the detection oil circuit 1103 penetrates through the outer surface of the blower housing 31, and a sealing screw plug 19 is fixedly arranged on an oil port of the detection oil circuit 1103, which is positioned on the outer surface of the blower housing 31.
When parameters such as the temperature of the lubricating oil, the pressure of the lubricating oil or the cleanliness of the lubricating oil in the male rotor driving gear lubricating oil path 110101, the bearing lubricating oil path 110102 at the male rotor driving end, the bearing lubricating oil path 110103 at the male rotor supporting end, the bearing lubricating oil path 110201 at the female rotor driving end, the bearing lubricating oil path 110202 at the female rotor supporting end and the bearing lubricating oil path 110203 at the female rotor supporting end are required to be detected, the sealing screw plug 19 can be opened, the outer side port of the corresponding detection oil path 1103 is connected with a detection device such as a temperature sensor, a pressure sensor or a cleaning instrument, and the like, the lubricating oil in the corresponding lubricating oil path is detected, when a fault occurs at a certain place, the fault can be discovered and solved in time, the condition that the abnormal condition occurs due to the oil pressure or the oil temperature of the lubricating oil at the certain place is avoided, and the fault is not discovered in time, so that the fault accumulation time is overlong, the maintenance difficulty is increased and the maintenance cost is increased.
The oil pump assembly 4 comprises an oil pump 401, an oil pumping hole 405 is formed in the oil pump 401, an oil injection channel 21 and an oil suction channel 22 are respectively arranged at the top position and the bottom position of the outer side of the supporting end oil tank 102 in a penetrating mode towards the inside of the supporting end oil tank 102, the oil pumping hole 405, the oil suction channel 22 and an inner cavity 3105 of the supporting end oil tank are sequentially communicated, an oil pump outlet hole 406 is formed in the oil pump 401, the oil pumping hole 405 and the oil pump outlet hole 406 are communicated through an inner pipeline of the oil pump, a fourth oil outlet channel 10206 is arranged in the inside of the supporting end oil tank 102 in a built-in mode, one ends of the oil pump outlet hole 406 and the fourth oil outlet channel 10206 are fixedly connected, and the other end of the fourth oil outlet channel 10206 extends to the outer surface of the supporting end oil tank 102, which is close to one side of the male rotor 501.
The oil pump 401 is provided with an oil pump inner shell 408, the outer surface of the oil pump inner shell 408 is fixedly connected with the inner surface of the supporting end oil tank 102, a fixing plate 402 is fixedly arranged on the inner surface of the oil pump inner shell 408, a wave spring 24 is fixedly arranged at the other end of the fixing plate 402, an oil pump rotor 404 is fixedly connected with a male rotor supporting end rotating shaft section 503 in an axial direction, the wave spring 24 is in a compressed state, an oil pump outer fixing seat 403 is fixedly arranged on the axially outer side of the oil pump 401, a pressure relief channel 409 is arranged in the oil pump inner shell 408, one end of the pressure relief channel 409 is fixedly connected with a male rotor end transition oil path 110104 and a female rotor end transition oil path 110204 respectively, and the other end of the pressure relief channel 409 is fixedly connected with one side end surface of the fixing plate 402, which is far away from the wave spring 24.
Under normal condition, fixed plate 402 plays fine sealed effect to the lubricating oil in the lubricating oil circuit 11 under wave spring 24's elasticity effect, when the oil pressure in the lubricating oil circuit is too high, lubricating oil in the lubricating oil circuit promotes fixed plate 402 on the oil pump subassembly 4, break away from each other fixed plate 402 and the internal surface of oil pump inner shell 408, lubricating oil flows to the inside of supporting end oil tank 102 from the gap between fixed plate 402 and the oil pump inner shell 408, realize the self-refluxing pressure release of lubricating oil, this structural design provides high-efficient stable self-pressure release function for the screw air-blower, avoid when the oil pressure in the lubricating oil circuit is too high and can't in time be found, lead to serious accident to take place, and, with the inside of the whole built-in supporting end oil tank 102 of oil pump subassembly 4, need not additionally to increase external relief valve and relief valve oil circuit, the holistic area of air-blower has been reduced the input cost of equipment.
The oiling passageway 21 internal fixation is equipped with oiling filter core 2101, when adding lubricating oil from oiling passageway hole 21, through oiling filter core 2101, can carry out preliminary filtration to lubricating oil, guarantees the cleanliness of lubricating oil, when avoiding the air-blower to move, because impurity is too much in the lubricating oil, leads to the inside spare part of air-blower to accelerate wearing and tearing and the too big problem of noise.
The oil suction channel 22 is provided with an oil suction filter hole 2201 at the bottom of the inner cavity 3105 of the supporting end oil tank, and when the oil pump 401 sucks oil through the oil suction channel 22, the oil suction filter hole 2201 can effectively filter impurities and foreign matters doped in the lubricating oil, so that the purity of the lubricating oil is ensured.
The oil suction channel 22 is located the bottom surface of supporting end oil tank 102 and is fixedly equipped with sealed plug screw 19 in the access port internal fixation, when needs change the inside lubricating oil of supporting end oil tank 102, only need open sealed plug screw 19, can discharge the inside lubricating oil of supporting end oil tank 102, easy operation is swift, increase work efficiency, and, because the lubricating oil discharge port on the oil suction channel 22 is located supporting end oil tank 102 bottom, when discharging lubricating oil, because receive the effect of gravity, lubricating oil and the inside impurity of supporting end oil tank 102 can both obtain thorough emission.
The lubricating oil path connecting assembly 3 comprises a lubricating oil path connecting seat 301 and a filter 302, when the blower operates, the oil pump assembly 4 conveys lubricating oil in the supporting end oil tank 102 into the lubricating oil path connecting assembly 3 through a fourth oil outlet passage 10206, the lubricating oil is filtered and cooled through the lubricating oil path connecting assembly 3, and the filtered and cooled lubricating oil is conveyed to the male rotor driving gear lubricating oil path 110101, the male rotor driving end bearing lubricating oil path 110102, the male rotor supporting end bearing lubricating oil path 110103, the female rotor driving gear lubricating oil path 110201, the female rotor driving end bearing lubricating oil path 110202 and the female rotor supporting end bearing lubricating oil path 110203 through a male rotor end transition oil path 110104 and a female rotor end transition oil path 110204 respectively to lubricate and cool corresponding driving gears and bearings.
The outside of lubricating oil circuit connecting seat 301 and supporting end oil tank 102 is close to the one side fixed connection of male rotor 501, be equipped with filter connecting seat 30105 on the lubricating oil circuit connecting seat 301, filter 302 is through filter connecting seat 30105 and lubricating oil circuit connecting seat 301 fixed connection, the one side that lubricating oil circuit connecting seat 301 surface is close to supporting end oil tank 102 is equipped with into oil channel hole 30101, the one end fixed connection that oil pump delivery hole 406 was kept away from to oil channel hole 30101 and fourth oil outlet channel 10206, the surface that lies in one side of filter connecting seat 30105 on the lubricating oil circuit connecting seat 301 is equipped with out oil channel hole 30102, be equipped with lubricating oil circuit connecting seat internal connection passageway 30111 between oil channel hole 30101 and the play oil channel hole 30102, oil channel hole 30101, the surface that lies in one side of filter connecting seat 30105 is equipped with into oil channel hole 30103, oil return channel hole 30103 communicates with the oil inlet hole and the delivery hole of filter circuit of filter inside filter 302 respectively on the lubricating oil circuit connecting seat 301.
The inside of the supporting-end oil tank 102 is provided with a transitional connection passage 10205 along the radial direction, and two ends of the transitional connection passage 10205 penetrate through the outer surface of the supporting-end oil tank 102.
The lubricating oil way connecting seat 301 is fixedly provided with a locking fixing hole 30104 on the end face of the same side as the oil inlet passage hole 30101, a threaded hole is formed in the outer portion of the supporting end oil tank 102, the lubricating oil way connecting seat 301 and the supporting end oil tank 102 are fixedly connected through a locking screw 20 through the locking fixing hole 30104 and the threaded hole in the outer portion of the supporting end oil tank 102 in a locking mode, the lubricating oil way connecting seat 301 can be conveniently disassembled and assembled through the structural design, the low-pressure lubricating oil way connecting seat or the high-pressure lubricating oil way connecting seat is replaced according to actual use requirements, and the operation is simple and quick.
When the highest exhaust pressure of the screw blower is not higher than 140kPa, the whole lubricating and heat dissipation requirements of the blower can be met only by installing the low-pressure lubricating oil path connecting seat, at the moment, the lubricating oil path connecting seat 301 is a low-pressure lubricating oil path connecting seat, the lubricating oil path connecting seat 301 is made of cast aluminum alloy materials, and the cast aluminum alloy materials can play a certain role in heat dissipation and temperature reduction on lubricating oil in the lubricating oil path connecting seat 301.
The inside of the lubricating oil path connecting seat 301 is provided with a first oil inlet passage 30106, the oil return passage hole 30103 is communicated with the first oil inlet passage 30106, the inside of the lubricating oil path connecting seat 301 is provided with a first transition passage 30109 and a first oil outlet passage 30110, one end of the first transition passage 30109 and one end of the first oil outlet passage 30110 are respectively communicated with the first oil inlet passage 30106,
The first transition passage 30109 and the first oil outlet passage 30110 are respectively perpendicular to the first oil inlet passage 30106, the other end of the first transition passage 30109 is fixedly connected with one end of the transition connection passage 10205, the other end of the transition connection passage 10205 is fixedly connected with the female rotor end transition oil passage 110204 in the support end oil tank 102, and the other end of the first oil outlet passage 30110 is fixedly connected with the male rotor end transition oil passage 110104 in the support end oil tank 102.
After the lubricating oil is filtered by the filter 302, the lubricating oil enters the first oil inlet channel 30106 through the oil return channel hole 30103, at this time, a part of the lubricating oil passes through the first oil outlet channel 30110 and enters the male rotor end transition oil channel 110104, then enters the male rotor driving gear lubricating oil channel 110101, the male rotor driving end bearing lubricating oil channel 110102 and the male rotor supporting end bearing lubricating oil channel 110103 respectively through the male rotor end transition oil channel 110104, oil spraying lubrication and cooling are carried out on the corresponding driving gear, thrust bearing and supporting bearing, and a part of the lubricating oil sequentially enters the female rotor end transition oil channel 110204 through the first transition channel 30109 and the transition connection channel 10205, and then enters the driving gear lubricating oil channel 110201, the female rotor driving end bearing lubricating oil channel 110202 and the female rotor supporting end bearing lubricating oil channel 110203 respectively through the female rotor end transition oil channel 110204, and oil spraying lubrication and cooling are carried out on the corresponding driving gear, thrust bearing and supporting bearing.
Because the distances between the driving gear lubricating oil circuit 110201, the female rotor driving end bearing lubricating oil circuit 110202 and the female rotor supporting end bearing lubricating oil circuit 110203 and the lubricating oil circuit connecting seat 301 are relatively far, the number of the first transition channels 30109 is set to be multiple, the supply quantity of lubricating oil on one side of the female rotor 601 can be increased, enough pressure is ensured in the lubricating oil circuits on two sides of the male rotor 501 and the female rotor 601, and the driving gears, the thrust bearings and the supporting bearings on the male rotor rotating shaft assembly 5 and the female rotor rotating shaft assembly 6 can be fully lubricated and cooled.
The outside of supporting end oil tank 102 is close to the fixed oil separating piece 18 that is equipped with in one side of female rotor 601, the inside of oil separating piece 18 is equipped with second buffer channel 1803, the inside of oil separating piece 18 is equipped with second transition passageway 1804 and second play oil passageway 1805, second transition passageway 1804, the one end of second play oil passageway 1805 communicates each other with second buffer channel 1803 respectively, second transition passageway 1804, the position of second play oil passageway 1805 and second buffer channel 1803 respectively is perpendicular angle setting each other, the other end of second transition passageway 1804 and the one end fixed connection of transition connection passageway 10205 keeping away from first transition passageway 30109, the other end of second play oil passageway 1805 and the inside female rotor end transition oil circuit 110204 fixed connection of supporting end oil tank 102.
When the blower operates, the oil pump 401 sucks the lubricating oil in the supporting end oil tank 102 into the fourth oil outlet passage 10206 through the oil suction passage 22, the oil pump oil suction hole 405 and the oil pump oil outlet hole 406, and the lubricating oil in the fourth oil outlet passage 10206 sequentially passes through the oil inlet passage hole 30101, the lubricating oil path connecting seat internal connecting passage 30111 and the oil outlet passage hole 30102 to enter the filter 302, and as the lubricating oil path connecting seat 301 is made of cast aluminum alloy materials, when the lubricating oil passes through the lubricating oil path connecting seat internal connecting passage 30111, part of heat of the lubricating oil can be taken away, so that the lubricating oil can be cooled.
The filter 302 filters the internal lubricating oil, the filtered lubricating oil enters the first oil inlet passage 30106 through the oil return passage hole 30103, and at this time, the lubricating oil path connection base 301 can perform secondary heat dissipation and cooling on the entering lubricating oil.
Part of the lubricating oil in the first oil inlet passage 30106 sequentially passes through the first transition passage 30109 and the transition connecting passage 10205 to enter the second transition passage 1804, the lubricating oil in the second transition passage 1804 sequentially passes through the second buffer passage 1803, the second oil outlet passage 1805 and the female rotor end transition oil passage 110204 to enter the female rotor driving gear lubricating oil passage 110201, the female rotor driving end bearing lubricating oil passage 110202 and the female rotor supporting end bearing lubricating oil passage 110203 respectively, the thrust bearings 14 and the supporting bearings 29 on the outer circumference of the female rotor driving end rotating shaft section 602 and the thrust bearings 14 on the outer circumference of the female rotor supporting end rotating shaft section 603 are precisely oil-sprayed, and the other part sequentially passes through the first oil outlet passage 30110 and the male rotor end transition oil passage 110104 to enter the male rotor driving gear lubricating oil passage 110101, the male rotor driving end bearing lubricating oil passage 110102 and the male rotor supporting end bearing lubricating oil passage 110103 respectively, the thrust bearing 14 and the support bearing 29 on the outer circumference of the male rotor driving gear 10 and the male rotor driving end rotating shaft section 502 and the thrust bearing 14 on the outer circumference of the male rotor supporting end rotating shaft section 503 are precisely oil-sprayed and lubricated, because the positions of the second transition channel 1804 and the second oil outlet channel 1805 and the second buffer channel 1803 are respectively arranged at mutually perpendicular angles, when the lubricating oil sequentially passes through the second transition channel 1804, the second buffer channel 1803 and the second oil outlet channel 1805, the vertical angle among the second transition channel 1804, the second oil outlet channel 1805 and the second buffer channel 1803 can buffer and boost the lubricating oil, the supply quantity of the lubricating oil on one side of the male rotor end lubricating oil circuit 1101 can be increased, the shortage of the lubricating oil spraying pressure of the male rotor end lubricating oil circuit 1101 is avoided because the interval distance between the male rotor end lubricating oil circuit 1101 and the lubricating oil circuit connecting seat 301 is far, the problem that the quantity of the lubricating oil is insufficient is caused in the driving gear, the thrust bearing and the supporting bearing on the side of the male rotor end lubricating oil path 1101, and further the driving gear, the thrust bearing and the supporting bearing on the side of the male rotor end lubricating oil path 1101 and the female rotor end lubricating oil path 1102 are guaranteed to have enough lubricating and heat dissipation effects.
With respect to the above structure of the low-pressure oil passage connection seat 301 and the oil distributing block 18, more preferably, the two ends of the first oil inlet passage 30106 are respectively provided with a first passage hole 30112 and a second passage hole 30113, the first passage hole 30112 and the second passage hole 30113 respectively extend to the outer surface of the oil passage connection seat 301, the positions of the first passage hole 30112 and the second passage hole 30113 on the outer surface of the oil passage connection seat 301 are fixedly provided with a sealing plug 19, the two ends of the second buffer passage 1803 are respectively provided with a first passage hole 1801 and a second passage hole 1802, the first passage hole 1801 and the second passage hole 1802 respectively extend to the outer surface of the oil distributing block 18, and the first passage hole 1801 and the second passage hole 1802 are respectively fixedly provided with the sealing plug 19. The sealing screw plug 19 can be opened according to actual demands, related detection devices such as a temperature sensor and a pressure sensor are installed on the first passage hole 30112 and the second passage hole 30113, the states of lubricating oil in the lubricating oil path connecting seat 301 and the lubricating oil distributing block 18 are monitored in real time, and when the lubricating oil in the lubricating oil path connecting seat 301 and the lubricating oil distributing block 18 is abnormal, the problems can be discovered and solved in time at the first time, the failure of timely discovery, the accumulation time of faults caused by overlong fault is avoided, the maintenance difficulty is increased, the maintenance cost is increased, and even serious safety accidents occur.
When the exhaust pressure of the screw blower is higher than 140kPa, a high-pressure lubrication oil way connecting seat is required to be installed to meet the whole lubrication and heat dissipation requirements of the blower, at the moment, the lubrication oil way connecting seat 301 is a high-pressure lubrication oil way connecting seat, and the material used by the lubrication oil way connecting seat 301 is a cast aluminum alloy material.
The axial outside of the supporting end oil tank 102 is fixedly provided with an air cooler 35, an air cooler cooling fan 3504 is fixedly arranged on the air cooler 35, the air cooler cooling fan 3504 is fixedly connected with the female rotor supporting end rotating shaft section 603 through an air cooler connecting shaft 40, when the female rotor supporting end rotating shaft section 603 rotates, the air cooler cooling fan 3504 in the air cooler 35 is driven to synchronously rotate, two ends of the air cooler 35 are fixedly provided with an air cooler oil inlet 3501 and an air cooler oil outlet 3502, and an air cooler inner connecting channel 3503 is fixedly arranged between the air cooler oil inlet 3501 and the air cooler oil outlet 3502.
The outside of supporting end oil tank 102 is close to the fixed oil separation piece 18 that is equipped with in one side of female rotor 601, and the inside of oil separation piece 18 is equipped with second buffer channel 1803, and the inside of oil separation piece 18 is equipped with second transition passageway 1804 and second play oil passageway 1805, and second transition passageway 1804, the one end of second play oil passageway 1805 respectively with second buffer channel 1803 fixed connection, second transition passageway 1804, second play oil passageway 1805 respectively with the mutual perpendicular angle setting in the position of second buffer channel 1803.
The inside of the lubricating oil way connecting seat 301 is provided with a first oil inlet channel 30106 and a first buffer channel 30107, an oil return channel hole 30103 is communicated with the first oil inlet channel 30106, the inside of the lubricating oil way connecting seat 301 is provided with a first transition channel 30109 and a first oil outlet channel 30110, one end of the first transition channel 30109 and one end of the first oil outlet channel 30110 are respectively and fixedly connected with the first buffer channel 30107, the first transition channel 30109 and the first oil outlet channel 30110 are respectively and vertically arranged with the position of the first buffer channel 30107, the other end of the first oil outlet channel 30110 is fixedly connected with a male rotor end transition oil way 110104 in a supporting end oil tank 102, one end of the first oil inlet channel 30106 is fixedly connected with a first connecting pipe 38, the other end of the first connecting pipe 38 is fixedly connected with an air cooler oil inlet 3501, the outer side port of the air cooler oil outlet 3502 is fixedly connected with a second connecting pipe 39, the other end of the second connecting pipe 39 is fixedly connected with one end of the second buffer channel 1803, the second transition channel 1804 and the second oil outlet channel 1805 are far away from the first end of the first buffer channel 30107, and the other end of the first buffer channel 30107 is fixedly connected with the first end of the first buffer channel 3015.
When the blower operates, the oil pump 401 sucks the lubricating oil in the supporting end oil tank 102 into the fourth oil outlet passage 10206 through the oil suction passage 22, the oil pump oil suction hole 405 and the oil pump oil outlet hole 406, and the lubricating oil in the fourth oil outlet passage 10206 sequentially passes through the oil inlet passage hole 30101, the lubricating oil path connecting seat internal connecting passage 30111 and the oil outlet passage hole 30102 to enter the filter 302, and as the lubricating oil path connecting seat 301 is made of cast aluminum alloy materials, when the lubricating oil passes through the lubricating oil path connecting seat internal connecting passage 30111, part of heat of the lubricating oil can be taken away, so that the lubricating oil can be cooled.
The filter 302 filters the internal lubricating oil, the filtered lubricating oil enters the first oil inlet passage 30106 through the oil return passage hole 30103, and at this time, the lubricating oil path connection base 301 can perform second heat dissipation and cooling on the entering lubricating oil.
The lubricating oil in the first oil inlet passage 30106 sequentially passes through the first connecting pipe 38 and the air cooler oil inlet 3501 and enters the air cooler inner connecting passage 3503, at this time, the air cooler cooling fan 3504 performs air cooling and cooling on the lubricating oil in the air cooler inner connecting passage 3503, the lubricating oil after cooling and cooling sequentially passes through the air cooler oil outlet 3502 and the second connecting pipe 39 and enters the second buffer passage 1803, a part of the lubricating oil in the second buffer passage 1803 sequentially passes through the second oil outlet passage 1805 and the female rotor end transition oil passage 110204 and respectively enters the female rotor driving gear lubricating oil passage 110201, the female rotor driving end bearing lubricating oil passage 110202 and the female rotor supporting end bearing lubricating oil passage 110203, and performs precise oil injection lubrication on the female rotor driving gear 30, the thrust bearing 14 and the supporting bearing 29 on the outer circumference of the female rotor driving end rotating shaft section 602 and the thrust bearing 14 on the outer circumference of the female rotor supporting end rotating shaft section 603, and the other parts sequentially pass through the second transition channel 1804, the transition connecting channel 10205, the first transition channel 30109, the first buffer channel 30107, the first oil outlet channel 30110 and the male rotor end transition oil circuit 110104 to respectively enter the male rotor driving gear lubricating oil circuit 110101, the male rotor driving end bearing lubricating oil circuit 110102 and the male rotor supporting end bearing lubricating oil circuit 110103, so that accurate oil spraying lubrication is performed on the male rotor driving gear 10, the thrust bearing 14 and the supporting bearing 29 on the outer circumference of the male rotor driving end rotating shaft section 502 and the thrust bearing 14 on the outer circumference of the male rotor supporting end rotating shaft section 503, and when the lubricating oil sequentially passes through the first transition channel 30109, the first buffer channel 30107 and the first oil outlet channel 30110, the lubricating oil circuit connecting seat 301 can perform third heat dissipation and cooling on the entering lubricating oil.
Because the second transition channel 1804, the second oil outlet channel 1805 are respectively perpendicular to the positions of the second buffer channel 1803, buffer pressurization can be carried out on lubricating oil when the lubricating oil passes through, and because the first transition channel 30109, the first oil outlet channel 30110 are respectively perpendicular to the positions of the first buffer channel 30107, buffer pressurization can be carried out on the lubricating oil again when the lubricating oil passes through, thus, buffer pressurization can be ensured on the lubricating oil in the male rotor end lubricating oil channel 1101 and the female rotor end lubricating oil channel 1102, the situation that the lubricating oil pressure in the male rotor end lubricating oil channel 1101 and the female rotor end lubricating oil channel 1102 is too low due to overlong flow stroke distance of the lubricating oil caused by connecting an air cooler is avoided, and further, the sufficient lubricating oil pressure is ensured in the male rotor end lubricating oil channel 1101 and the female rotor end lubricating oil channel 1102, and the driving gear, the thrust bearing and the supporting bearing on one side of the male rotor end lubricating oil channel 1101 and the female rotor end lubricating oil channel 1102 can be provided with sufficient oil spraying lubricating effect.
In addition, as the air cooler 35 is directly driven to operate through the female rotor support end rotating shaft section 603, an external air cooler motor is not required, the problem that the air cooler 35 cannot normally operate due to the fact that the external air cooler motor fails is avoided, the integral failure rate of equipment is reduced, sufficient heat dissipation and cooling effects of parts in the blower are further guaranteed, and the service life of relevant parts is further prolonged.
With respect to the above-mentioned structure of the high-pressure lubrication oil passage connection seat 301 and the oil distribution block 18, more preferably, the two ends of the first oil inlet passage 30106 and the first buffer passage 30107 are respectively provided with a first passage hole 30112 and a second passage hole 30113, the first passage hole 30112 and the second passage hole 30113 respectively extend to the outer surface of the lubrication oil passage connection seat 301, the first passage hole 30112 and the first connection pipe 38 on the first oil inlet passage 30106 are fixedly connected, the two ends of the second buffer passage 1803 are respectively provided with a first passage hole 1801 and a second passage hole 1802, the first passage hole 1801 and the second passage hole 1802 respectively extend to the outer surface of the oil distribution block 18, the first passage hole 1801 and the second connection pipe 39 are fixedly connected, the second passage hole 30113 on the first oil inlet passage 30106, the first passage hole 30112 and the second passage hole 30113 on the first buffer passage 30107 are respectively located in the ports of the outer surface of the lubrication oil passage connection seat 301 and are fixedly provided with a sealing screw plug 19, the second channel hole 1802 on the second buffer channel 1803 is located the port internal fixation of the outer surface of the oil separation block 18 and is equipped with the sealing plug screw 19, can open the sealing plug screw 19 according to actual demand, install relevant detection device such as temperature sensor, pressure sensor on first channel hole 30112 and second channel hole 30113, carry out real-time monitoring to the lubricating oil state in lubricating oil way connecting seat 301 and the oil separation block 18, such design, when lubricating oil in lubricating oil way connecting seat 301 and the oil separation block 18 appears unusual, can first time discovery and in time solve, avoid leading to the trouble accumulation time overlength because of failing in time discovery, increase the maintenance degree of difficulty and increase cost of maintenance, even appear great incident.
The inside of lubricating oil circuit connecting seat 301 is equipped with reserve passageway 30108, reserve passageway 30108 and first oil feed passageway 30106 fixed connection, the both ends of reserve passageway 30108 are fixed to be equipped with first passage hole 30112 and second passage hole 30113, first passage hole 30112 and second passage hole 30113 extend to the surface of lubricating oil circuit connecting seat 301 respectively, the port internal fixation that first passage hole 30112 and second passage hole 30113 are located lubricating oil circuit connecting seat 301 surface is equipped with sealing screw plug 19, can external corresponding pertinence check out test set as required on the passage hole of reserve passageway 30108, the flexibility is high.
The radial both sides of the cavity structure bottom inside the air intake shell 202 and the air exhaust shell 201 are respectively provided with a male rotor rotating shaft positioning groove plate 3101 and a female rotor rotating shaft positioning groove plate 3102, the male rotor driving end rotating shaft section 502, the male rotor supporting end rotating shaft section 503, the female rotor driving end rotating shaft section 602 and the female rotor supporting end rotating shaft section 603 are respectively and fixedly connected with the male rotor rotating shaft positioning groove plate 3101 and the female rotor rotating shaft positioning groove plate 3102 in a rotating way, two side end surfaces of the male rotor 501 and the female rotor 601 are respectively and fixedly connected with the inner side end surfaces of the male rotor rotating shaft positioning groove plate 3101 and the female rotor rotating shaft positioning groove plate 3102, a clearance hole 28 is arranged between the two side end surfaces of the male rotor 501 and the female rotor 601 and the inner side end surfaces of the female rotor rotating shaft positioning groove plate 3102, and the clearance hole 28 can prevent friction and collision between the male rotor end surfaces and the inner side end surfaces of the connected rotating shaft positioning groove plate when the blower runs, so that long-time stable running of the blower is ensured.
The rotor axial gap adjustment support assembly 34 of the outer circumferences of the male rotor driving end rotating shaft section 502 and the female rotor driving end rotating shaft section 602 comprises rotor axial adjustment rings 8, positioning holes 804 are respectively formed in the middle positions of the two rotor axial adjustment rings 8, the two positioning holes 804 are respectively fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section 502 and the female rotor driving end rotating shaft section 602, rotor axial adjustment ring support portions 801 are respectively arranged at the two end positions of the rotor axial adjustment rings 8, support portion outer end faces 80101 and support portion inner end faces 80102 are respectively arranged on the rotor axial adjustment ring support portions 801, rotor axial adjustment ring elastic portions 802 are fixedly arranged between the two rotor axial adjustment ring support portions 801, elastic compression sections 80202 are respectively arranged at the middle positions of the rotor axial adjustment ring elastic portions 802, elastic support sections 80201 are respectively arranged at the two end positions of the rotor axial adjustment ring elastic portions 802, and the outer end faces of the two elastic support sections 80201 are respectively fixedly connected with the two support portion inner end faces 8002.
The two rotor axial adjusting rings 8 are respectively and axially fixedly provided with a support bearing 29 near the outer end face 80101 of the support part at one end of the male rotor 501 and the female rotor 601, the outer end face 80101 of the support part is axially fixedly connected with the outer end face of the bearing inner ring of the support bearing 29, the bearing inner ring of the support bearing 29 is respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section 502 and the female rotor driving end rotating shaft section 602, the outer circumferences of the male rotor driving end rotating shaft section 502 and the female rotor driving end rotating shaft section 602 are respectively provided with a shaft shoulder 32, the inner end face of the bearing inner ring of the support bearing 29 is axially and fixedly connected with the shaft shoulder 32, the two rotor axial adjusting rings 8 are respectively and axially fixedly provided with a thrust bearing 14 far away from the outer end face 80101 of the support part at one end of the male rotor 501 and the female rotor 601, the outer end face 80101 of the supporting part is axially and fixedly connected with the inner end face of the bearing inner ring of the thrust bearing 14, the bearing inner ring of the thrust bearing 14 is respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section 502 and the female rotor driving end rotating shaft section 602, the outer end face of the bearing inner ring of the thrust bearing 14 is axially and fixedly provided with a rotating shaft sleeve 13, the two rotating shaft sleeves 13 are respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section 502 and the female rotor driving end rotating shaft section 602 in a rotating manner, the rotating shaft sleeve 13, the bearing inner ring of the thrust bearing 14, the rotor axial adjusting ring 8, the bearing inner ring of the supporting bearing 29 and the shaft shoulder 32 are sequentially axially locked, a clearance hole 28 is formed between the rotating shaft sleeve 13 and the shaft shoulder 32, and the rotor axial adjusting ring 8 is in an axial compression state.
The bearing lubrication assemblies 7 are axially and fixedly arranged between the inner end face of the bearing outer ring of the thrust bearing 14 and the outer end face of the bearing outer ring of the supporting bearing 29, the inner end faces of the two bearing lubrication assemblies 7 are respectively and fixedly connected with the male rotor rotating shaft positioning groove plate 3101 and the female rotor rotating shaft positioning groove plate 3102 in an axial direction, the inner end face of the bearing outer ring of the supporting bearing 29 is axially and fixedly provided with a labyrinth seal 33, the inner end face of the bearing outer ring of the supporting bearing 29 is axially and fixedly connected with the outer end face of the labyrinth seal 33, the two labyrinth seal 33 is respectively and fixedly connected with the male rotor driving end rotating shaft section 502 and the outer circumference of the female rotor driving end rotating shaft section 602, the inner end faces of the two labyrinth seal 33 are respectively and fixedly connected with the male rotor rotating shaft positioning groove plate 3101 and the female rotor rotating shaft positioning groove plate 3102 in an axial direction, the outer end face of the bearing outer ring of the thrust bearing 14 is fixedly provided with a bearing fixing sleeve 15 in an axial direction, and the bearing fixing sleeve 15 is simultaneously and fixedly connected with the outer end face of the bearing lubrication assemblies 7 in an axial direction.
The rotor axial gap adjusting support component 34 on the outer circumference of the male rotor support end rotating shaft section 503 and the female rotor support end rotating shaft section 603 is respectively composed of a thrust bearing 14 and a wave spring 24, the outer circumferences of the male rotor support end rotating shaft section 503 and the female rotor support end rotating shaft section 603 are respectively provided with a shaft shoulder 32, the inner side end face of the bearing inner ring of the thrust bearing 14 is axially fixedly connected with the shaft shoulder 32, the inner side end face of the bearing outer ring of the thrust bearing 14 is axially fixedly provided with a labyrinth seal 33, the inner side end face of the bearing outer ring of the thrust bearing 14 is axially fixedly connected with the outer side end face of the labyrinth seal 33, the two labyrinth seal 33 are respectively fixedly connected with the outer circumferences of the male rotor drive end rotating shaft section 502 and the female rotor drive end rotating shaft section 602, the inner side end faces of the two labyrinth seal 33 are respectively axially fixedly connected with a male rotor rotating shaft positioning groove plate 3101 and a female rotor rotating shaft positioning groove plate 3102, the outer side end surface of the thrust bearing 14 is fixedly connected with the inner side end surface of the wave spring 24 in an axial direction, the two wave springs 24 are fixedly connected with the outer circumferences of the male rotor supporting end rotating shaft section 503 and the female rotor supporting end rotating shaft section 603 respectively, the outer side end surface of the wave spring 24 is positioned at the bearing inner ring of the thrust bearing 14 and is fixedly provided with a bearing fixing sleeve 15 in an axial direction, the two bearing fixing sleeves 15 are simultaneously and fixedly connected with the male rotor supporting end rotating shaft section 503 and the female rotor supporting end rotating shaft section 603 respectively, the outer side end surfaces of the two wave springs 24 are positioned at the bearing outer ring of the thrust bearing 14 and are fixedly connected with the inner side end surface of the supporting end oil tank 102 in an axial direction respectively, the bearing fixing sleeve 15, the wave spring 24, the bearing inner ring of the thrust bearing 14 and the shaft shoulder 32 are axially locked in sequence, the wave spring 24 is in an axially compressed state.
When the rotary sleeve 13 rotates inwards, the rotor axial adjusting ring 8 is axially supported and compressed in a compressed state, the male rotor 501 and the female rotor 601 are driven to axially move towards the supporting end oil tank 102, at this time, the wave spring 24 is axially supported and compressed in the compressed state, when the rotary sleeve 13 rotates outwards, the rotor axial adjusting ring 8 is axially supported and expanded in the compressed state, the male rotor 501 and the female rotor 601 are driven to axially move towards the driving end oil tank 101, and at this time, the wave spring 24 is axially supported and expanded in the compressed state.
The two elastic support sections 80201 are respectively bent towards the inner sides in a free state, the outer surfaces of the two elastic support sections 80201 respectively extend outwards to form an included angle of 35-75 degrees with the outer end face 80101 of the support part, the inner surfaces of the two elastic support sections 80201 respectively extend outwards to form an included angle of 100-150 degrees with the inner end face 80102 of the support part, and the arrangement of the angles can ensure the stability of long-time elastic support of the rotor axial adjusting ring 8 and prolong the service life of the rotor axial adjusting ring 8.
The elastic compression section 80202 is bent to the outside in a free state, an airflow cavity 803 is arranged between the two rotor axial adjusting ring supporting parts 801 and the rotor axial adjusting ring elastic parts 802 and the male rotor driving end rotating shaft 50101 and the female rotor driving end rotating shaft 60101 respectively, when the rotor axial adjusting ring supporting parts 801 at the two ends are pressed inwards, the rotor axial adjusting ring elastic parts 802 are compressed to deform, at the moment, the elastic compression section 80202 continuously bends to the outside in the radian, circumferential airflow from inside to outside is formed in the airflow cavity 803, a certain promotion effect is achieved for maintaining the elastic effect of the rotor axial adjusting ring elastic parts 802, and the service life of the rotor axial adjusting ring 8 is prolonged.
The radius size of the inward bending radian of the two elastic support sections 80201 in a free state is 1.0mm-2.5mm, if the radius size is too small, the bending radian of the elastic support sections 80201 becomes large, so that the axial support force of the rotor axial adjusting ring 8 becomes small, a part of the axial support force can form radial unloading force, finally, when the male and female rotors rotate, the problem of axial displacement occurs, if the radius size is too large, the bending radian of the elastic support sections 80201 becomes small, the transition angle between the two elastic support sections 80201 and the elastic compression sections 80202 is too large, and the two elastic support sections 80201 and the elastic compression sections 80202 are caused to have fault hidden dangers of fracture under the serious vibration action generated under the long-time axial acting force and the operation of the blower, and finally, the blower is caused to have fault.
As a more preferable scheme, the outer surfaces of the two elastic support sections 80201 respectively extend outwards to form an included angle with the outer end face 80101 of the support part, wherein the included angle is 60 degrees plus or minus 3 degrees, and the optimal effect can be realized, so that the two elastic support sections 80201 are further ensured to have stable axial support force.
More preferably, the inner surface surfaces of the two elastic support sections 80201 extend outwards at an angle of 125 ° ± 5 ° with respect to the inner end surface 80102 of the support portion.
The radius size of the outward bending radian of the elastic compression section 80202 is 2.6mm-4.5mm in a natural state, so that the rotor axial adjusting ring 8 can be ensured to have stable axial supporting force.
As a more preferable scheme, the radius size of the inward bending radian of the two elastic support sections 80201 is 2mm plus or minus 0.2mm in the free state, the radius size of the outward bending radian of the elastic compression section 80202 is 3.5mm plus or minus 0.5mm in the natural state, and the radius size is the optimal effect size, so that the axial support force of the rotor axial adjusting ring 8 can be ensured, the occurrence of fracture faults between the two elastic support sections 80201 and the elastic compression section 80202 can be avoided, the long-time running stability of the blower is further improved, and the service life is prolonged.
The inner surface of the locating hole 804 is respectively provided with a chamfer 805 between the outer end faces 80101 of the supporting parts at two ends, plays a role in guiding when the rotor axial adjusting ring 8 is installed, an installer can install the rotor axial adjusting ring 8 in place quickly and accurately, and collision between the end faces of the rotor axial adjusting ring 8 and the male rotor rotating shaft sections can be avoided when the rotor axial adjusting ring 8 is installed, so that related parts are damaged.
The axial load of the wave spring 24 was 250N, and the elastic stiffness of the wave spring 24 was 70N/mm.
The compressive strength of the rotor axial direction adjusting ring 8 was 260MPa.
The thickness dimension of the rotor axial adjustment ring 8 is 1.5mm + -0.3 mm.
The bearing lubrication assembly 7 comprises a bearing lubrication sleeve 709, wherein a mounting positioning hole 708 is formed in the middle position of the bearing lubrication sleeve 709, an inclined plane 704 is formed at the joint of the inner surface of the mounting positioning hole 708 and two side end surfaces of the bearing lubrication sleeve 709, a third oil inlet channel 701 is formed in the position, close to the outer side, of the bearing lubrication sleeve 709 in the axial direction, and the outer side ports of the third oil inlet channels 701 in the two bearing lubrication sleeves 709 are fixedly connected with one ends of a male rotor driving end bearing lubrication oil circuit 110102 and a female rotor driving end bearing lubrication oil circuit 110202, which are far away from a male rotor end transition oil circuit 110104 and a female rotor end transition oil circuit 110204, respectively.
The inner side port of the third oil inlet channel 701 is connected with a buffer connection channel 703 towards the direction of the mounting positioning hole 708, the buffer connection channel 703 is arranged in the bearing lubricating sleeve 709 along the radial direction, the oil injection channel 702 is fixedly arranged between the inclined plane 704 and the two axial ends of the buffer connection channel 703 close to the inner side respectively, and the buffer connection channel 703, the oil injection channel 702 and the inclined plane 704 mutually penetrate.
The outside port of oil injection channel 702 aligns thrust bearing 14 and support bearing 29 on the outer circumference of male rotor drive end rotation axis segment 502, female rotor drive end rotation axis segment 602 respectively, form independent oil injection lubrication channel to thrust bearing 14 and support bearing 29 respectively, carry out accurate lubrication heat dissipation to it, guarantee that thrust bearing 14 and support bearing 29 can obtain equivalent lubrication heat dissipation, when having solved current screw blower and having used the oil slinger to carry out self-lubricating, lubricating oil mostly splashes on thrust bearing 14's the side, only a small part of lubricating oil can splash on support bearing 29, lead to support bearing 29 to obtain sufficient lubrication heat dissipation's problem, and support bearing 29 is the radial support bearing that bears great radial force, consequently support bearing 29's lubrication failure can directly influence thrust bearing 14's holistic life and the stability of operation, more importantly, the jet orifice of oil injection channel 702 is aimed at thrust bearing 14 and support bearing 29's the bearing inner race position respectively, further guarantee thrust bearing 14 and support bearing 29 high-speed rotation stability for a long time, noise that thrust bearing 14 and support bearing 29 produced when reducing thrust bearing 14 and support bearing 29 rotation, and guarantee that sufficient thrust bearing 14 and support bearing 29 have sufficient lubrication effect and cooling effect.
The direction that the inboard port of third oil feed passageway 701 towards bearing lubrication sleeve 709 outside links to each other and is equipped with detection passageway 706, detection passageway 706 runs through to bearing lubrication sleeve 709's surface, detection passageway 706 is located the fixed sealing screw plug 19 that is equipped with on the port of bearing lubrication sleeve 709's surface, when needs to detect the parameter such as the lubricated oil temperature in the lubricated oil circuit 110102 of male rotor drive end bearing and the lubricated oil circuit 110202 of female rotor drive end bearing, lubricating oil pressure or lubricating oil cleanliness class, can open sealing screw plug 19, connect detection device such as temperature sensor, pressure sensor or clean appearance with this position, detect its position relevant parameter, when this position breaks down, can discover in time for the first time and solve, avoid consequently that abnormality appears in oil pressure or oil temperature etc. and fail to discover in time, lead to the trouble accumulation time overlength, increase the maintenance degree of difficulty and increase cost of maintenance.
A buffer chamber 707 is provided between the end face of the fuel injection passage 702 and the buffer connection passage 703 and the innermost end face of the buffer connection passage 703.
The inside of bearing lubrication sleeve 709 is equipped with distribution channel 705 along the circumferencial direction, and a plurality of buffering connecting channel 703 of fixedly connected with on the distribution channel 705 respectively, a plurality of buffering connecting channel 703 evenly distributed along the circumferencial direction in bearing lubrication sleeve 709, the intercommunication each other between distribution channel 705 and third oil feed channel 701, a plurality of buffering connecting channel 703.
Because thrust bearing 14 and the supporting bearing 29 of the male and female rotor drive end play a key role in the operation of the whole screw blower, therefore, the lubrication cooling of thrust bearing 14 and supporting bearing 29 of the male and female rotor drive end is especially important, and the structural design can further increase the lubrication cooling effect of thrust bearing 14 and supporting bearing 29, ensure that thrust bearing 14 and supporting bearing 29 are subjected to uninterrupted oil spraying lubrication cooling when rotating, and secondly, because a plurality of buffer connection channels 703 are fixedly connected to distribution channels 705 respectively, when one oil spraying channel 702 is blocked due to faults, other oil spraying channels 702 can also continue to carry out oil spraying lubrication cooling on thrust bearing 14 and supporting bearing 29, further ensure the stability of long-time rotation of thrust bearing 14 and supporting bearing 29, and prolong the whole service life of the blower.
The radial depth dimension of the buffer cavity 707 is 3.5mm-4.5mm, and the design of the dimension can prevent a large amount of oil mist from being generated after the oil pressure in the buffer connection channel 703 is too high and the oil is intensively sprayed out from the oil spraying channel 702, so that the lubricating heat dissipation effect of the thrust bearing 14 and the support bearing 29 is reduced.
The inner diameter size of the oil injection channel 702 is 0.65mm-1.25mm, so that the thrust bearing 14 and the support bearing 29 can be subjected to accurate oil injection lubrication and heat dissipation, and meanwhile, the generation of oil mist can be effectively avoided, and the thrust bearing 14 and the support bearing 29 are ensured to be sufficiently lubricated and heat dissipation.
The included angle between the buffer connection channel 703 and the inclined plane 704 extending towards the direction of the mounting positioning hole 708 is 24-35 degrees, and the angle can accurately align the outermost port of the oil injection channel 702 with the outer surface positions of the inner rings of the thrust bearing 14 and the support bearing 29, so that the lubrication and heat dissipation effects of the thrust bearing 14 and the support bearing 29 are greatly improved, the stability of the thrust bearing 14 and the support bearing 29 during high-speed rotation is ensured, and the noise is further reduced.
The angle between fuel injection passage 702 and slope 704 is 90 deg. + -2 deg..
As a more preferable scheme, the inner diameter size of the oil injection channel 702 is 1mm plus or minus 0.1mm, and the inner diameter size is the optimal effect size, so that more accurate oil injection lubrication and heat dissipation can be performed on the thrust bearing 14 and the support bearing 29, and meanwhile, the generation of oil mist is avoided to the greatest extent, and the thrust bearing 14 and the support bearing 29 are ensured to be sufficiently lubricated and heat-dissipated.
As a more preferable scheme, the included angle between the buffer connection channel 703 and the inclined plane 704 extending towards the direction of the mounting positioning hole 708 is 30 ° ± 2 °, which is the optimal effect size, so that the outermost ports of the oil injection channel 702 can be aligned to the outer surface positions of the inner rings of the thrust bearing 14 and the support bearing 29 to the greatest extent, the lubrication and heat dissipation effects of the thrust bearing 14 and the support bearing 29 are further ensured, the stability of the thrust bearing 14 and the support bearing 29 during high-speed rotation is ensured, and the noise is reduced to the greatest extent.
The middle position of the male rotor driving gear 10 is provided with a driving gear fixing hole 1005 in a penetrating manner along the axial direction, two axial ends of the driving gear fixing hole 1005 are respectively and fixedly provided with a driving gear fixing sleeve 1001 outwards, the outer surface of the driving gear fixing sleeve 1001 is provided with a driving gear fixing sleeve conical surface 1004, a third conical surface 100401 and a fourth conical surface 100402 are sequentially arranged on the driving gear fixing sleeve conical surface 1004 from outside to inside, the minimum outer diameter size of the third conical surface 100401 is smaller than the maximum outer diameter size of the fourth conical surface 100402, the maximum outer diameter size of the third conical surface 100401 is equal to the minimum outer diameter size of the fourth conical surface 100402, and driving gear end surface grooves 1003 are respectively arranged on two side end surfaces of the male rotor driving gear 10.
The outer surface of the driving gear fixing sleeve 1001 is fixedly provided with a gear locking assembly 9, the gear locking assembly 9 comprises a first gear locking disc 901 and a second gear locking disc 902, and the outer diameter of the first gear locking disc 901 and the outer diameter of the second gear locking disc 902 are smaller than the outer diameter of the groove 1003 on the end face of the driving gear.
The intermediate positions of the first gear locking disk 901 and the second gear locking disk 902 are respectively provided with a gear locking disk positioning hole 903 in a penetrating manner along the axial direction, the inner surface of the gear locking disk positioning hole 903 is provided with a gear locking disk conical surface 904, a first conical surface 90401 and a second conical surface 90402 are sequentially arranged on the gear locking disk conical surface 904 from inside to outside, the maximum outer diameter of the first conical surface 90401 is larger than the minimum outer diameter of the second conical surface 90402, the minimum outer diameter of the first conical surface 90401 is equal to the maximum outer diameter of the second conical surface 90402, and the maximum outer diameter of the first conical surface 90401 is equal to the maximum outer diameter of the third conical surface 100401.
The conical surfaces 904 of the gear locking discs on the first gear locking disc 901 and the second gear locking disc 902 are respectively and axially locked and fixedly connected with the outer surfaces of the driving gear fixing sleeves 1001 at the two ends of the male rotor driving gear 10.
The terminal surface of first gear locking dish 901 is equipped with first through-hole 90101 that runs through along the axial, and the terminal surface of drive gear terminal surface recess 1003 is equipped with the second through-hole 1002 that runs through along the axial, and the terminal surface of second gear locking dish 902 is equipped with the screw hole 90201 that runs through along the axial, and first gear locking dish 901 and second gear locking dish 902 pass first through-hole 90101 and second through-hole 1002 and screw hole 90201 screw locking through locking screw 20 in proper order and fix.
The number of the first through holes 90101, the second through holes 1002 and the threaded holes 90201 is plural, and the first through holes 90101, the second through holes 1002 and the threaded holes 90201 are distributed on the end surfaces of the first gear locking disk 901, the driving gear end surface groove 1003 and the second gear locking disk 902 along the circumferential direction.
The first through hole 90101, the second through hole 1002, the screw hole 90201 are respectively at first gear locking dish 901, drive gear terminal surface recess 1003, the terminal surface of second gear locking dish 902 is along circumferencial direction evenly distributed, when can guarantee that locking screw 20 carries out axial locking to first gear locking dish 901 and second gear locking dish 902, the terminal surface axial atress of first gear locking dish 901 and second gear locking dish 902 is even, avoid first gear locking dish 901 and second gear locking dish 902 to take place the deformation, lead to locking insecure problem, further increase the stability of male rotor drive gear 10 locking, guarantee the reliability of meshing between the drive gear, noise and vibration range when reducing the fan operation.
The axial taper angle dimension of the driving gear fixing sleeve taper surface 1004 is 4 degrees plus or minus 1 degrees, the axial taper angle dimension of the gear locking disc taper surface is 4 degrees plus or minus 1 degrees, the angle dimension can ensure that the gear locking disc has enough large circumferential locking force on the driving gear fixing sleeve 1001, the firmness of holding tightly between the male rotor driving gear 10 and the male rotor driving end rotating shaft section 502 is ensured, the stability of long-time running of the blower is improved, if the axial taper angle dimension of the driving gear fixing sleeve taper surface 1004 is increased, the axial locking force of the gear locking disc on the driving gear fixing sleeve 1001 is increased, the circumferential locking force is reduced, and the locking force between the male rotor driving gear 10 and the male rotor driving end rotating shaft section 502 is reduced.
The axial depth dimension of the driving gear end face groove 1003 is 15 mm+/-1 mm, the axial thickness dimension of the first gear locking disk 901 and the second gear locking disk 902 is 12 mm+/-1 mm, the dimension can ensure that the outer end face of the gear locking disk cannot exceed the outer end face of the male rotor driving gear 10 after the gear locking disk is mounted on the driving gear fixing sleeve 1001, impurities are prevented from being accumulated between the gear locking disk and the rotating shaft, the running performance of the blower is influenced, enough space can be provided for mounting or maintaining, the problem that the gear locking disk deforms due to long-time stress can be avoided by the thickness dimension of the gear locking disk, and the stability of the integral running of the blower is further improved.
The external diameter size of the driving gear end surface groove 1003 is 160 mm+/-3 mm, the external diameter size of the first gear locking disk 901 and the second gear locking disk 902 is 150 mm+/-3 mm, after the gear locking disk is locked on the driving gear fixing sleeve 1001, a gap of about 10mm is reserved between the external circumferential side surface of the gear locking disk and the external circumferential side surface of the driving gear end surface groove 1003, and the effect is that firstly, collision between the gear locking disk and the male rotor driving gear 10 can be avoided, secondly, air flow interference and noise received by the male rotor driving gear 10 in the rotating process can be reduced, and furthermore, large particle impurities can be prevented from entering the gap, so that the stability of the whole operation of the blower is further ensured.
The chamfer 905 is arranged between the end surfaces of the first conical surface 90401 connected with the first gear locking disc 901, the chamfer 905 is arranged between the end surfaces of the first conical surface 90401 connected with the second gear locking disc 902, the gear locking disc is mounted on the driving gear fixing sleeve 1001 to play a guiding role, the gear locking disc can be rapidly and accurately mounted on the driving gear fixing sleeve 1001, collision between the gear locking disc and the driving gear fixing sleeve 1001 is avoided, and the operation efficiency is improved.
The outer circumferential surface of the outermost side of the rotary shaft section 602 of the driving end of the female rotor and the inner circumferential surface of the mounting hole in the middle of the rotary shaft section 30 of the driving end of the female rotor are provided with conical surfaces with angles corresponding to each other, the radial dimension of the conical surface of the outer circumferential surface of the rotary shaft section 602 of the driving end of the female rotor is larger than the radial dimension of the inner circumferential surface of the mounting hole on the rotary shaft section 30 of the driving end of the female rotor, the rotary shaft section 602 of the driving end of the female rotor is fixed on the outer circumferential surface of the rotary shaft section 602 of the driving end of the female rotor, the outer end surface of the rotary shaft section 30 of the female rotor is fixedly provided with a gear washer 12, the gear washer 12 axially locks the rotary shaft section 602 of the driving end of the female rotor and the driving end of the female rotor through a locking screw 20, after the rotary shaft section 602 of the driving end of the female rotor and the driving end of the female rotor is axially locked, because the radial dimension of the conical surface on the female rotor driving end rotating shaft section 602 is larger than the radial dimension on the inner circumferential surface of the female rotor driving gear 30, when the female rotor driving gear 30 is sleeved into the conical surface of the female rotor driving end rotating shaft section 602, the outermost end surface of the female rotor driving gear 30 exceeds the outermost end surface of the conical surface of the female rotor driving end rotating shaft section 602, then the gear washer 12 applies axial locking force to the female rotor driving gear 30 through the locking screw 20, the female rotor driving gear 30 is firmly fixed to the outer circumference of the conical surface at the foremost end of the female rotor driving end rotating shaft section 602, the structural design can ensure the connection firmness between the female rotor driving gear 30 and the outer circumferential surface of the female rotor driving end rotating shaft section 602, and can realize the quick disassembly and assembly of the female rotor driving gear 30, the operation is convenient and quick, and the working efficiency is improved.
The sun rotor driving gear lubricating oil path 110101, the sun rotor supporting end bearing lubricating oil path 110103, the sun rotor driving gear lubricating oil path 110201 and the sun rotor supporting end bearing lubricating oil path 110203 are respectively aligned with the sun rotor driving gear 10, the thrust bearing 14 on the outer circumference of the sun rotor supporting end rotating shaft section 503, the sun rotor driving gear 30 and the forefront end of the thrust bearing 14 on the outer circumference of the sun rotor supporting end rotating shaft section 603, the inner diameter size of the oil nozzle 1107 is smaller than that of the lubricating oil path, the tooth top position after the driving gear is separated from the combination and the inner ring position of the thrust bearing 14 on the sun rotor supporting end can be aligned more accurately through the oil nozzle 1107, the lubricating cooling effect of the driving gear and the thrust bearing 14 is further improved, the service life of related parts is prolonged, noise generated when the driving gear and the thrust bearing 14 rotate at a high speed is reduced, and the oil mist generated when spraying is greatly reduced, more importantly, the required oil pump pressure and oil spraying hole can be determined for the inner diameters of the air blower with different related parts, and then the oil spraying efficiency of the related parts can be improved, the accurate cooling effect can be realized by installing the oil nozzle 1107, and the related parts can be cooled down accurately.
The outer surface of the driving end oil tank 101 is provided with a first fixed end face 10101, the first fixed end face 10101 is fixedly provided with a driving end fixed supporting seat 25, the outer surface of the supporting end oil tank 102 is provided with a second fixed end face 10201, and the second fixed end face 10201 is fixedly provided with a supporting end fixed supporting seat 26.
The labyrinth seal sleeve 33 of the outer circumferences of the male rotor driving end rotating shaft section 502 and the female rotor driving end rotating shaft section 602 is respectively provided with an oil throwing hole 3301, the position, close to the oil throwing hole 3301, of the inner surface of the exhaust casing 201 is fixedly provided with an oil return groove 37, the position, close to the oil throwing hole 3301, of the inner surface of the air intake casing 202 is fixedly provided with an oil return groove 37, the position, close to the male rotor driving gear 10 and the female rotor driving gear 30, of the inner surface of the driving end oil tank 101 is fixedly provided with an oil return groove 37, the position, close to the outer circumferences of the male rotor driving end rotating shaft section 502 and the female rotor driving end rotating shaft section 602, of the thrust bearing 14 and the support bearing 29 are respectively fixedly provided with an oil return groove 37, the inner surface of the supporting-end oil tank 102 is fixedly provided with oil return grooves 37 near the thrust bearings 14 of the outer circumferences of the male rotor supporting-end rotating shaft section 503 and the female rotor supporting-end rotating shaft section 603 respectively, the inner surface of the blower housing 31 is fixedly provided with oil return pipelines 36, the oil return pipelines 36 sequentially penetrate through the inner surfaces of the driving-end oil tank 101, the exhaust casing 201, the intake casing 202 and the supporting-end oil tank 102, one end of the oil return pipelines 36 positioned on the inner surface of the supporting-end oil tank is communicated with the inner cavity 3105 of the supporting-end oil tank, the oil return grooves 37 are respectively far away from the oil throwing holes 3301, the male rotor driving gear 10, the female rotor driving gear 30, the thrust bearings 14 and one end of the supporting bearings 29 are respectively communicated with the oil return pipelines 36, part of lubricating oil on the driving gear, the thrust bearings 14 and the supporting bearings 29 flows into the oil return pipelines 36 through the corresponding oil return grooves 37, and then back into the support side tank 102 through the return line 36.
The whole lubricating oil backflow process is completed in the blower housing 31, so that the problem of lubricating oil leakage during oil return operation of the lubricating oil completed by the external oil return device of an existing screw blower can be avoided, and the external oil return device is omitted, so that the occupied area of the whole blower is reduced.
Furthermore, the whole backward flow process can take away the inside produced oil mist of blower housing 31, avoids the oil mist to pile up for a long time in blower housing inside and appear depositing or impurity, influences the normal operating of relevant spare part, more importantly sets up independent oil return groove 37 respectively to each spare part in the air-blower, and this structural design can avoid leading to the inside whole oil return of air-blower to appear because of some lubricating oil return is unsmooth, has further guaranteed the unobstructed nature of the inside lubricating oil return of air-blower.
A hollow positioning pin 17 is fixedly arranged at the axial connection part of the male rotor end transition oil way 110104 and the female rotor end transition oil way 110204 in the driving end oil tank 101 and the male rotor end transition oil way 110104 and the female rotor end transition oil way 110204 in the exhaust casing 201 respectively, an axial through hole 1701 is arranged at the middle position of the hollow positioning pin 17, the driving end oil tank 101 and the male rotor end transition oil way 110104 in the exhaust casing 201 are mutually communicated through the through hole 1701, the driving end oil tank 101 and the female rotor end transition oil way 110204 in the exhaust casing 201 are mutually communicated through the through hole 1701, the male rotor end transition oil way 110104 and the female rotor end transition oil way 110204 in the exhaust casing 201 and the male rotor end transition oil way 110104 and the female rotor end transition oil way 110204 in the intake casing 202 respectively, the axial connection part of the hollow positioning pin 17 is fixedly arranged at the middle position of the hollow positioning pin 17, the male rotor end transition oil way 110104 inside the exhaust casing 201 and the air inlet casing 202 are mutually communicated through a through hole 1701, the female rotor end transition oil way 110204 inside the exhaust casing 201 and the air inlet casing 202 are mutually communicated through a through hole 1701, the male rotor end transition oil way 110104 inside the air inlet casing 202, the female rotor end transition oil way 110204 are respectively fixedly provided with a hollow positioning pin shaft 17 at the axial connection part of the male rotor end transition oil way 110104 inside the support end oil tank 102 and the female rotor end transition oil way 110204, an axial through hole 1701 is arranged in the middle of the hollow positioning pin shaft 17, the male rotor end transition oil way 110104 inside the air inlet casing 202 and the support end oil tank 102 are mutually communicated through the through hole 1701, and the female rotor end transition oil way 110204 inside the air inlet casing 202 and the support end oil tank 102 are mutually communicated through the through hole 1701, and the axial positioning function of the hollow positioning pin shaft 17 can drive the oil tank 101 and the exhaust casing 201, the exhaust casing 201, the air inlet casing 202 and the supporting end oil tank 102 are quickly and accurately assembled together, so that the workload and the working strength of an operator during assembly are greatly reduced, and meanwhile, the problem that radial dislocation occurs in a lubricating oil path between connected casings after the relevant casings of the blower are assembled due to inaccurate axial positioning during assembly of the operator, and the situation that the lubricating oil in the lubricating oil path is unsmooth during operation of the blower is caused can be avoided.
A connection flange 20205 is fixedly arranged on the outer circumferential surface of the air inlet 20201 on the air inlet 20206, and a connection flange 20103 is fixedly arranged on the outer circumferential surface of the air outlet 20101 on the air outlet 20104.
The external surface fixation of exhaust casing 201 is equipped with strengthens fixed plate 20102, the external surface fixation of air inlet casing 202 is equipped with strengthens fixed plate 20204, can improve the impact resistance of exhaust casing 201 and air inlet casing 202, guarantee that exhaust casing 201 and air inlet casing 202 also can maintain the stable input and the output of air current when bearing great exhaust pressure and air inlet pressure, and because the external surface fixation at exhaust casing 201 and air inlet casing 202 is equipped with strengthens the fixed plate, can further improve blower housing overall structure's stability, avoid the blower housing to appear the problem of deformation because internal pressure is too big or receive external force extrusion, further improve blower housing overall operation's stability.
The external surface fixation of supporting end oil tank 102 is equipped with reserve fixed terminal surface 10203, is equipped with screw hole 10202 on the reserve fixed terminal surface 10203, and the external surface fixation of air inlet casing 202 is equipped with reserve fixed terminal surface 20202, is equipped with screw hole 20203 on the reserve fixed terminal surface 20202, can carry out better three-dimensional direction to the air-blower complete machine fixedly through reserve fixed terminal surface, has further improved the steadiness when the air-blower is installed in narrow space or the abominable topography of environment, guarantees the even atress of three-dimensional multipoints of air-blower casing, improves the stability when the air-blower operates.
The number of the first fixing end faces 10101 on the outer surface of the driving end oil tank 101 is multiple, the first fixing end faces 10101 are respectively distributed on the upper portion and the lower portion of the outer surface of the driving end oil tank 101, and threaded holes 10102 are formed in the first fixing end faces 10101.
The number of the second fixed end surfaces 10201 arranged on the outer surface of the supporting-end oil tank 102 is a plurality, and the second fixed end surfaces 10201 are respectively distributed at the upper position and the lower position of the outer surface of the supporting-end oil tank 102; the second fixing end face 10201 is provided with a threaded hole 10202.
The mounting holes 2501 and 2601 are respectively arranged on the driving end fixing support seat 25 and the supporting end fixing support seat 26, and when the blower is mounted or dismounted, the locking screw 20 passes through the mounting holes and the mounting positions to realize quick positioning mounting or dismounting, so that the mounting is convenient, the operation time is saved, and the working efficiency is improved.
The axial connection part of the driving end oil tank 101 and the exhaust casing 201, the axial connection part of the exhaust casing 201 and the air inlet casing 202 and the axial connection part of the air inlet casing 202 and the supporting end oil tank 102 are respectively locked and fixed through the axial threads of the locking screw 20, so that the tightness between the connected casings is ensured, and meanwhile, the blower is convenient for workers to disassemble, repair and daily maintain, the working efficiency is improved, and the working strength is reduced.
The inside of the supporting-end oil tank 102 is fixedly provided with an oil pump assembly mounting hole 10204.
The sealing rings 23 are fixedly arranged at the axial connection parts of the driving end oil tank 101 and the exhaust casing 201, the axial connection parts of the exhaust casing 201 and the air inlet casing 202 and the axial connection parts of the air inlet casing 202 and the supporting end oil tank 102, respectively, outside the outer surface of the hollow positioning pin 17, so that the tightness between connected lubricating oil paths is further enhanced, and the condition that lubricating oil leaks between the connected casings is avoided.
A sealing ring 23 is fixedly arranged between the oil dividing block 18 and the outer surface of the supporting end oil tank 102.
A sealing ring 23 is fixedly arranged between the lubricating oil path connecting seat 301 and the outer surface of the supporting end oil tank 102.
The internal diameter of each oil passage in the lubricating oil passage assembly, each oil passage in the lubricating oil passage connecting seat 301 and each oil passage in the oil dividing block 18 is 12mm plus or minus 1mm, the internal diameter is the optimal effect size, the stability of the flow of lubricating oil in the lubricating oil passage can be ensured, the excessive internal diameter can cause the too low oil pressure in the oil passage, the problem that the lubricating and heat dissipation of the driving gear and the bearing in the blower are not in place is caused, the internal diameter size is too small, the oil mist generated during oil injection can be increased, the oil mist is accumulated in the blower for a long time, the viscosity of the lubricating oil can be increased, the oil temperature of the lubricating oil can also be increased, the rotation resistance of the driving gear and the bearing is increased, the lubricating and heat dissipation effects of the driving gear and the bearing are reduced, more importantly, the oil pressure in the oil passage can be increased due to the too small internal diameter of the oil passage, the impact force generated by the lubricating oil can cause damage to the driving gear and the bearing to a certain extent when the driving gear and the bearing are sprayed by the oil passage, and the service life of the driving gear and the bearing is reduced.
However, the foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, so that the substitution of equivalent elements or equivalent variations and modifications within the scope of the invention are intended to fall within the scope of the claims.
Claims (10)
1. A screw blower, characterized by: comprises a blower shell, a transmission assembly and an oil supply lubrication heat dissipation assembly;
the blower shell comprises a shell assembly and an oil tank assembly, wherein a driving end oil tank and a supporting end oil tank are respectively fixedly arranged on two sides of the shell assembly, and the driving end oil tank and the supporting end oil tank form the oil tank assembly;
the shell assembly comprises an air inlet shell and an air outlet shell, wherein the air inlet shell and the air outlet shell are of hollow structures, the hollow structures in the air inlet shell and the air outlet shell are combined to form a shell inner cavity, a driving end oil tank inner cavity is formed in the driving end oil tank, and a supporting end oil tank inner cavity is formed in the supporting end oil tank;
the upper part of the air inlet machine shell is fixedly provided with an air inlet pipe, the outer side port of the air inlet pipe is provided with an air inlet, the upper part of the air outlet machine shell is fixedly provided with an air outlet pipe, and the outer side port of the air outlet pipe is provided with an air outlet;
The air inlet pipe is communicated with the inner cavity of the air inlet casing, and the air outlet pipe is communicated with the inner cavity of the air outlet casing;
The transmission assembly comprises a male rotor rotating shaft assembly and a female rotor rotating shaft assembly, the male rotor rotating shaft assembly and the female rotor rotating shaft assembly are fixedly arranged in the blower shell along the axial direction, a male rotor is arranged at the middle position of the male rotor rotating shaft assembly, a male rotor driving end rotating shaft section and a male rotor supporting end rotating shaft section are respectively arranged at the two ends of the male rotor rotating shaft assembly, the male rotor driving end rotating shaft section axially penetrates through the outer side of the driving end oil tank, a female rotor is arranged at the middle position of the female rotor rotating shaft assembly, and a female rotor driving end rotating shaft section and a female rotor supporting end rotating shaft section are respectively arranged at the two ends of the female rotor rotating shaft assembly;
the male rotor and the female rotor are respectively provided with a spiral blade surface, and are rotationally connected through the spiral blade surfaces;
the male rotor and the female rotor are in sealed rotary connection with the inner surface of the inner cavity;
The outer side rotating shaft section and the inner side rotating shaft section of the driving end of the male rotor are respectively and rotatably connected with the inner cavity of the driving end oil tank and the inner cavity of the casing, and the outer side rotating shaft section and the inner side rotating shaft section of the supporting end of the male rotor are respectively and rotatably connected with the inner cavity of the supporting end oil tank and the inner cavity of the casing;
The outer side rotating shaft section and the inner side rotating shaft section of the female rotor driving end rotating shaft section are respectively and rotatably connected with the inner cavity of the driving end oil tank and the inner cavity of the machine shell, and the outer side rotating shaft section and the inner side rotating shaft section of the female rotor supporting end rotating shaft section are respectively and rotatably connected with the inner cavity of the supporting end oil tank and the inner cavity of the machine shell;
the outer circumferences of the male rotor driving end rotating shaft section, the female rotor driving end rotating shaft section, the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section are respectively provided with a rotor axial gap adjusting and supporting assembly, and axial adjustment can be respectively realized between the two side end surfaces of the male rotor and the female rotor and the two side inner end surfaces of the inner cavity of the shell through the rotor axial gap adjusting and supporting assembly;
the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section are respectively fixedly provided with a male rotor driving gear and a female rotor driving gear;
The oil supply lubrication heat dissipation assembly comprises a lubrication oil path assembly, an oil pump assembly and a lubrication oil path connecting assembly;
The lubricating oil circuit component is arranged in the blower shell;
The oil pump assembly is positioned in the oil tank at the supporting end and is fixedly connected with the inner surface of the oil tank at the supporting end;
The lubricating oil way connecting component is positioned outside the supporting end oil tank and fixedly connected with one side, close to the male rotor, of the outside of the supporting end oil tank;
The lubricating oil circuit component, the oil pump component and the lubricating oil circuit connecting component are communicated with each other.
2. The screw blower of claim 1, wherein: the lubricating oil circuit assembly comprises a male rotor end lubricating oil circuit and a female rotor end lubricating oil circuit, wherein the male rotor end lubricating oil circuit comprises a male rotor driving gear lubricating oil circuit, a male rotor driving end bearing lubricating oil circuit, a male rotor supporting end bearing lubricating oil circuit and a male rotor end transition oil circuit, and the female rotor end lubricating oil circuit comprises a female rotor driving gear lubricating oil circuit, a female rotor driving end bearing lubricating oil circuit, a female rotor supporting end bearing lubricating oil circuit and a female rotor end transition oil circuit;
The rotor driving gear lubricating oil way, the rotor driving end bearing lubricating oil way and the rotor supporting end bearing lubricating oil way are respectively and radially arranged in the driving end oil tank, the exhaust shell and the supporting end oil tank which are close to the rotor, the rotor end transition oil way sequentially penetrates through the driving end oil tank, the exhaust shell, the air inlet shell and the supporting end oil tank in an axial direction and is close to the rotor, one ends of the rotor driving gear lubricating oil way, the rotor driving end bearing lubricating oil way and the rotor supporting end bearing lubricating oil way are respectively and fixedly connected with the rotor end transition oil way, and the other ends of the rotor driving gear lubricating oil way, the rotor driving end bearing lubricating oil way and the rotor supporting end bearing lubricating oil way are respectively aligned with the rotor driving gear, the rotor axial gap adjusting supporting component on the outer circumference of the rotor driving end rotating shaft section and the rotor axial gap adjusting supporting component on the outer circumference of the rotor supporting end rotating shaft section;
The female rotor driving gear lubricating oil way, the female rotor driving end bearing lubricating oil way and the female rotor supporting end bearing lubricating oil way are radially arranged in the driving end oil tank, the exhaust shell and the inside of one side, close to the female rotor, of the supporting end oil tank respectively, the female rotor end transition oil way sequentially penetrates through the driving end oil tank, the exhaust shell, the air inlet shell and the inside, close to one side, of the female rotor, of the supporting end oil tank axially, one ends of the female rotor driving gear lubricating oil way, the female rotor driving end bearing lubricating oil way and the female rotor supporting end bearing lubricating oil way are fixedly connected with the female rotor end transition oil way respectively, and the other ends of the female rotor driving gear lubricating oil way, the female rotor driving end bearing lubricating oil way and the female rotor supporting end bearing lubricating oil way are aligned with the female rotor driving gear and the rotor axial gap adjusting supporting assembly on the outer circumference of the female rotor driving end rotating shaft section respectively.
3. The screw blower of claim 2, wherein: the oil pump assembly comprises an oil pump, an oil pumping hole is formed in the oil pump, an oil injection channel and an oil suction channel are respectively arranged at the top position and the bottom position of the outer side of the oil tank at the supporting end in a penetrating manner into the oil tank at the supporting end, the oil pumping hole, the oil suction channel and the inner cavity of the oil tank at the supporting end are sequentially communicated, an oil pump outlet hole is formed in the oil pump, the oil pumping hole and the oil pump outlet hole are communicated through an inner pipeline of the oil pump, a fourth oil outlet channel is arranged in the oil tank at the supporting end, one ends of the oil pump outlet hole and the fourth oil outlet channel are fixedly connected, and the other end of the fourth oil outlet channel extends to the outer surface of the oil tank at the supporting end, which is close to the male rotor;
The oil pump is characterized in that an oil pump inner shell is arranged on the oil pump, the outer surface of the oil pump inner shell is fixedly connected with the inner surface of the supporting end oil tank, a fixing plate is fixedly arranged on the inner surface of the oil pump inner shell, a wave spring is fixedly arranged at the other end of the fixing plate, an oil pump rotor is fixedly arranged at the other end of the wave spring, the oil pump rotor is simultaneously and fixedly connected with a male rotor supporting end rotating shaft section in an axial direction, the wave spring is in a compressed state, an oil pump outer fixing seat is fixedly arranged outside the oil pump shaft, a pressure relief channel is arranged in the oil pump inner shell, one end of the pressure relief channel is fixedly connected with a male rotor end transition oil way and a female rotor end transition oil way respectively, and the other end of the pressure relief channel is fixedly connected with one side end surface of the fixing plate, which is far away from the wave spring.
4. A screw blower according to claim 3, characterized in that: the lubricating oil circuit connecting assembly comprises a lubricating oil circuit connecting seat and a filter, and the lubricating oil circuit connecting seat is fixedly connected with one side, close to the male rotor, of the outside of the supporting end oil tank;
The oil outlet channel hole and the oil return channel hole are respectively communicated with the oil inlet hole and the oil outlet hole of the filter internal filtering pipeline;
the inside along radial direction of supporting end oil tank is equipped with the transitional coupling passageway, the surface of supporting end oil tank is run through at the both ends of transitional coupling passageway.
5. The screw blower of claim 4, wherein: the lubricating oil path connecting seat is a low-pressure lubricating oil path connecting seat, a first oil inlet channel is arranged in the lubricating oil path connecting seat, an oil return channel hole is communicated with the first oil inlet channel, a first transition channel and a first oil outlet channel are arranged in the lubricating oil path connecting seat, one ends of the first transition channel and the first oil outlet channel are communicated with each other respectively and are fixedly connected with one end of the transition channel, the other end of the transition channel is fixedly connected with a female rotor end transition oil path in the supporting end oil tank, and the other end of the transition channel is fixedly connected with a male rotor end transition oil path in the supporting end oil tank.
6. The screw blower of claim 5, wherein: the outside of supporting end oil tank is close to the fixed branch oil cake that is equipped with in one side of female rotor, the inside of dividing the oil cake is equipped with second buffer channel, the inside of dividing the oil cake is equipped with second transition passageway and second play oil channel, the one end of second transition passageway and second play oil channel communicates each other with second buffer channel respectively between, the one end fixed connection of first transition passageway is kept away from to the other end and the transition connection passageway of second transition passageway, the other end of second play oil channel and the inside female rotor end transition oil circuit fixed connection of supporting end oil tank.
7. The screw blower of claim 4, wherein: an air cooler is fixedly arranged on the outer side of the axial direction of the supporting end oil tank, an air cooler cooling fan is fixedly arranged on the air cooler, the air cooler cooling fan is fixedly connected with a female rotor supporting end rotating shaft section through an air cooler connecting shaft, when the female rotor supporting end rotating shaft section rotates, the air cooler cooling fan in the air cooler is driven to synchronously rotate, an air cooler oil inlet and an air cooler oil outlet are fixedly arranged at two ends of the air cooler, and an air cooler inner connecting channel is fixedly arranged between the air cooler oil inlet and the air cooler oil outlet;
An oil dividing block is fixedly arranged at one side, close to the female rotor, of the outer part of the oil tank at the supporting end, a second buffer channel is arranged in the oil dividing block, a second transition channel and a second oil outlet channel are arranged in the oil dividing block, and one ends of the second transition channel and the second oil outlet channel are fixedly connected with the second buffer channel respectively;
the inside of lubricating oil way connecting seat is high-pressure lubricating oil way connecting seat, lubricating oil way connecting seat is equipped with first oil feed passageway and first buffering passageway, communicate each other between oil return passageway hole and the first oil feed passageway, lubricating oil way connecting seat's inside is equipped with first transition passageway and first oil outlet channel, the one end of first transition passageway and first oil outlet channel respectively with first buffering passageway fixed connection, the other end of first oil outlet channel and the inside male rotor end transition oil circuit fixed connection of supporting terminal oil tank, the one end fixed connection first connecting pipe of first oil feed passageway, the other end of first connecting pipe and forced air cooler oil inlet fixed connection, the outside port fixed connection second connecting pipe of forced air cooler oil-out, the one end and the one end fixed connection of transition connecting passageway are kept away from to second transition passageway and second oil outlet channel, the one end fixed connection of first transition passageway is kept away from to transition connecting passageway.
8. The screw blower of claim 2, wherein: the radial two sides of the bottom of the cavity structure inside the air inlet shell and the air outlet shell are respectively provided with a male rotor rotating shaft positioning groove plate and a female rotor rotating shaft positioning groove plate, the male rotor driving end rotating shaft section, the male rotor supporting end rotating shaft section and the female rotor driving end rotating shaft section are respectively and fixedly connected with the male rotor rotating shaft positioning groove plate and the female rotor rotating shaft positioning groove plate in a rotating way, and clearance holes are respectively arranged between the two side end surfaces of the male rotor and the female rotor and the inner side end surfaces of the male rotor rotating shaft positioning groove plate and the female rotor rotating shaft positioning groove plate;
The rotor axial gap adjustment support assembly comprises rotor axial adjustment rings, wherein the middle positions of the two rotor axial adjustment rings are respectively provided with a positioning hole, the two positioning holes are respectively fixedly connected with the outer circumferences of the rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, the two end positions of the rotor axial adjustment rings are respectively provided with rotor axial adjustment ring support parts, the rotor axial adjustment ring support parts are respectively provided with support part outer end surfaces and support part inner end surfaces, rotor axial adjustment ring elastic parts are fixedly arranged between the two rotor axial adjustment ring support parts, the middle positions of the rotor axial adjustment ring elastic parts are provided with elastic compression sections, the two end positions of the rotor axial adjustment ring elastic parts are respectively provided with elastic support sections, the outer end surfaces of the two elastic support sections are respectively fixedly connected with the two support part inner end surfaces, and the inner end surfaces of the two elastic support sections are respectively fixedly connected with the two side end surfaces of the elastic compression sections;
The two rotor axial adjusting rings are respectively and axially fixedly provided with supporting bearings close to the outer end faces of supporting parts at one end of the male rotor and one end of the female rotor, the outer end faces of the supporting parts are axially and fixedly connected with the outer end faces of bearing inner rings of the supporting bearings, the bearing inner rings of the supporting bearings are respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, shaft shoulders are respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, the inner end faces of the bearing inner rings of the supporting bearings are respectively and axially fixedly connected with the outer end faces of bearing inner rings of the supporting parts, the bearing inner rings of the supporting parts are respectively and axially fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, the two bearing inner rings of the supporting bearings are respectively and axially fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, the inner rings of the supporting bearings, the supporting parts of the supporting parts are respectively and the supporting parts are axially fixedly connected with thrust bearings, the outer end faces of the supporting parts are axially and the supporting parts are axially connected with the inner end faces of the supporting parts, the supporting parts are axially and the supporting parts are axially connected with the supporting parts, the supporting parts axially and the supporting parts, the supporting parts are axially and the supporting parts, the supporting parts are axially and the supporting parts, the supporting part and the supporting part;
The bearing comprises a thrust bearing, a bearing driving end rotating shaft section, a bearing lubricating assembly, a bearing fixing sleeve and a bearing lubricating assembly, wherein the bearing lubricating assembly is axially fixedly arranged between the inner end face of a bearing outer ring of the thrust bearing and the outer end face of a bearing outer ring of a supporting bearing;
The rotor axial clearance adjustment support assembly on the outer circumference of the male rotor support end rotating shaft section and the female rotor support end rotating shaft section consists of a thrust bearing and a wave spring respectively;
The outer circumferences of the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section are respectively provided with a shaft shoulder, the inner side end face of a bearing inner ring of the thrust bearing is axially and fixedly connected with the shaft shoulder, the inner side end face of a bearing outer ring of the thrust bearing is axially and fixedly provided with a labyrinth gland, the inner side end face of the bearing outer ring of the thrust bearing is axially and fixedly connected with the outer side end face of the labyrinth gland, the two labyrinth glands are respectively and fixedly connected with the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section, the inner side end faces of the two labyrinth glands are respectively and fixedly connected with a male rotor rotating shaft positioning groove plate and a female rotor rotating shaft positioning groove plate, the outer side end face of the thrust bearing is axially and fixedly connected with the inner side end face of a wave spring, the two wave springs are fixedly connected with the outer circumference of the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section respectively, bearing fixing sleeves are axially fixedly arranged at the positions, located on the inner ring of a thrust bearing, of the outer side end faces of the wave springs, the two bearing fixing sleeves are fixedly connected with the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section respectively at the same time, the positions, located on the outer ring of the thrust bearing, of the outer side end faces of the wave springs are axially fixedly connected with the inner side end faces of the supporting end oil tank respectively, and the bearing fixing sleeves, the wave springs, the inner ring of the thrust bearing and the shaft shoulder are axially locked in sequence, and the wave springs are in an axial compression state.
9. The screw blower of claim 8, wherein: the bearing lubrication assembly comprises a bearing lubrication sleeve, wherein a mounting positioning hole is formed in the middle of the bearing lubrication sleeve, inclined planes are formed at the joint of the inner surface of the mounting positioning hole and the end surfaces of the two sides of the bearing lubrication sleeve, a third oil inlet channel is formed in the position, close to the outer side, of the bearing lubrication sleeve along the axis direction, and the outer side ports of the third oil inlet channels in the two bearing lubrication sleeves are fixedly connected with one end, far from a male rotor end transition oil channel and a female rotor end transition oil channel, of a male rotor driving end bearing lubrication oil channel and a female rotor driving end bearing lubrication oil channel respectively;
The inner side port of the third oil inlet channel is connected with a buffer connection channel towards the direction of the installation positioning hole, the buffer connection channel is arranged in the bearing lubricating sleeve along the radial direction, oil injection channels are fixedly arranged between the inclined planes and the two axial ends, close to the inner side, of the buffer connection channel, and the buffer connection channel, the oil injection channels and the inclined planes penetrate through each other.
10. The screw blower of claim 8, wherein: the labyrinth gland sleeves of the outer circumferences of the rotary shaft section of the driving end of the male rotor and the rotary shaft section of the driving end of the female rotor are respectively provided with an oil throwing hole, and the inner surface of the exhaust casing is fixedly provided with an oil return groove at the position close to the oil throwing hole;
the labyrinth seal sleeves of the outer circumferences of the male rotor support end rotating shaft section and the female rotor support end rotating shaft section are respectively provided with an oil throwing hole, and an oil return groove is fixedly arranged on the inner surface of the air inlet shell close to the oil throwing hole;
An oil return groove is fixedly formed in the inner surface of the driving end oil tank, close to the male rotor driving gear and the female rotor driving gear;
The inner surface of the driving end oil tank is respectively and fixedly provided with an oil return groove at the positions close to the thrust bearing and the support bearing of the outer circumferences of the male rotor driving end rotating shaft section and the female rotor driving end rotating shaft section;
The inner surface of the supporting end oil tank is respectively and fixedly provided with an oil return groove at the positions close to the thrust bearings at the outer circumferences of the male rotor supporting end rotating shaft section and the female rotor supporting end rotating shaft section;
The internal surface fixation of air-blower casing is equipped with the oil return pipeline, the oil return pipeline runs through drive end oil tank, exhaust casing, air inlet casing, the internal surface of supporting end oil tank in proper order, the oil return pipeline is located the one end of supporting end oil tank internal surface and the internal cavity intercommunication each other of supporting end oil tank, oil return groove is kept away from respectively and is got rid of oil hole, sun rotor drive gear, female rotor drive gear, thrust bearing, support bearing's one end respectively and returns between the oil return pipeline intercommunication each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410194395.7A CN118008811A (en) | 2024-02-22 | 2024-02-22 | Screw blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410194395.7A CN118008811A (en) | 2024-02-22 | 2024-02-22 | Screw blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN118008811A true CN118008811A (en) | 2024-05-10 |
Family
ID=90959196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410194395.7A Pending CN118008811A (en) | 2024-02-22 | 2024-02-22 | Screw blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN118008811A (en) |
-
2024
- 2024-02-22 CN CN202410194395.7A patent/CN118008811A/en active Pending
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