CN108397383B - Pump body assembly, compressor and heat exchange equipment - Google Patents
Pump body assembly, compressor and heat exchange equipment Download PDFInfo
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- CN108397383B CN108397383B CN201810375208.XA CN201810375208A CN108397383B CN 108397383 B CN108397383 B CN 108397383B CN 201810375208 A CN201810375208 A CN 201810375208A CN 108397383 B CN108397383 B CN 108397383B
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- 230000001105 regulatory effect Effects 0.000 claims abstract description 22
- 230000009471 action Effects 0.000 claims abstract description 9
- 238000004891 communication Methods 0.000 claims description 29
- 230000004308 accommodation Effects 0.000 claims description 7
- 238000005096 rolling process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 11
- 239000003921 oil Substances 0.000 description 10
- 238000007906 compression Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000010687 lubricating oil Substances 0.000 description 3
- 230000013011 mating Effects 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000003245 working effect Effects 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/30—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C18/34—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members
- F04C18/344—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
- F04C18/3446—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface
- F04C18/3447—Rotary-piston pumps specially adapted for elastic fluids having the characteristics covered by two or more of groups F04C18/02, F04C18/08, F04C18/22, F04C18/24, F04C18/48, or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group F04C18/08 or F04C18/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member the inner and outer member being in contact along more than one line or surface the vanes having the form of rollers, slippers or the like
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a pump body assembly, a compressor and heat exchange equipment. Wherein, pump body subassembly includes: a rotating shaft, the rotor part of which is provided with a sliding vane groove for accommodating a sliding vane; one end of the pressure regulating structure is communicated with the back pressure cavity of the sliding vane groove, and the other end of the pressure regulating structure is communicated with the inner cavity of the air cylinder; the adjusting piece is arranged in the pressure adjusting structure, and when the pressure difference exists between the inner cavity and the back pressure cavity, the adjusting piece slides in the pressure adjusting structure under the action of the pressure difference, so that the head of the sliding piece is always contacted with the inner surface of the air cylinder. The invention effectively solves the problems that a sliding sheet of a pump body component is easy to separate from a cylinder and the working performance of the pump body component is influenced in the prior art.
Description
Technical Field
The invention relates to the technical field of pump body components, in particular to a pump body component, a compressor and heat exchange equipment.
Background
In the prior art, the slide of the pump body assembly is slid by means of back pressure in the slide groove. However, in the later stage of exhaust of the pump body assembly, because of over-compression, the pressure of the exhaust cavity is higher than the normal exhaust pressure, and the pressure in the back pressure cavity of the sliding vane groove is still the exhaust pressure, the phenomenon that the sliding vane is separated from the inner wall of the cylinder easily occurs, so that the head of the sliding vane collides with the cylinder to generate vibration and noise, and the working performance and the working efficiency of the pump body assembly are affected.
Disclosure of Invention
The invention mainly aims to provide a pump body assembly, a compressor and heat exchange equipment, and aims to solve the problems that a sliding sheet of the pump body assembly is easy to separate from a cylinder and the working performance of the pump body assembly is affected in the prior art.
In order to achieve the above object, according to one aspect of the present invention, there is provided a pump body assembly comprising: a rotating shaft, the rotor part of which is provided with a sliding vane groove for accommodating a sliding vane; one end of the pressure regulating structure is communicated with the back pressure cavity of the sliding vane groove, and the other end of the pressure regulating structure is communicated with the inner cavity of the air cylinder; the adjusting piece is arranged in the pressure adjusting structure, and when the pressure difference exists between the inner cavity and the back pressure cavity, the adjusting piece slides in the pressure adjusting structure under the action of the pressure difference, so that the head of the sliding piece is always contacted with the inner surface of the air cylinder.
Further, the pressure regulating structure is a communication groove provided on the rotor portion.
Further, the communication groove comprises a first groove section, a containing groove section and a second groove section which are communicated sequentially, the first groove section is communicated with the inner cavity, the second groove section is communicated with the back pressure cavity, the adjusting piece is movably arranged in the containing groove section, and when the pressure of the inner cavity is smaller than that of the back pressure cavity, the adjusting piece slides to the communication position of the first groove section and the containing groove section so as to cut off the communication state of the first groove section and the containing groove section.
Further, when the pressure of the inner cavity is greater than the pressure of the back pressure cavity, the adjusting piece slides in the accommodating groove section so that the first groove section is communicated with the second groove section.
Further, the second groove section is a concave part formed on the groove wall of the sliding vane groove, and the concave part extends towards the tail part of the sliding vane groove so as to be communicated with the back pressure cavity.
Further, the adjusting piece is of a columnar structure.
Further, the groove wall of the accommodating groove section, which is close to one side of the second groove section, is a step surface, the step surface is arranged along the axial direction of the pump body assembly, and when the pressure of the inner cavity is larger than that of the back pressure cavity, gas in the inner cavity flows through the second groove section through the step surface to enter the back pressure cavity.
Further, when the pressure of the inner cavity is larger than the pressure of the back pressure cavity, the adjusting piece moves to the communication position of the accommodating groove section and the second groove section so as to cut off the communication state of the accommodating groove section and the second groove section.
Further, the adjusting piece is a sliding block, and the accommodating groove section extends from the first groove section to the second groove section, so that the sliding block can slide back and forth in the accommodating groove section.
Further, the sliding block is provided with a group of sliding matching surfaces which are oppositely arranged, a preset distance D is arranged between the sliding matching surfaces and the groove wall of the containing groove section, and the preset distance D is more than or equal to 0.01mm and less than or equal to 0.02mm.
Further, the first groove section comprises a first sub groove section and a second sub groove section which are communicated in sequence, the first sub groove section and the second sub groove section are arranged at an included angle, and the first sub groove section is far away from the accommodating groove section relative to the second sub groove section.
Further, the width of the first subslot segment is greater than the width of the second subslot segment.
Further, the second groove section comprises a third sub groove section and a fourth sub groove section which are communicated in sequence, the third sub groove section and the fourth sub groove section are arranged at an included angle, and the third sub groove section is close to the accommodating groove section relative to the fourth sub groove section.
Further, the fourth sub-groove section is a concave part formed on the groove wall of the sliding vane groove, and the concave part extends towards the tail part of the sliding vane groove to be communicated with the back pressure cavity.
Further, the cylinder is a rolling bearing type cylinder.
Further, in the axial direction of the rotating shaft, the height of the rotor part is H, the groove depth of the communicating groove is H, and the requirement is satisfied
According to another aspect of the present invention, there is provided a compressor comprising the pump body assembly described above.
According to another aspect of the present invention, there is provided a heat exchange apparatus comprising the compressor described above.
By applying the technical scheme of the invention, the pump body assembly comprises a rotating shaft, a pressure adjusting structure and an adjusting piece. Wherein, the rotor part of the rotating shaft is provided with a sliding vane groove for accommodating the sliding vane. One end of the pressure adjusting structure is communicated with the back pressure cavity of the sliding vane groove, and the other end of the pressure adjusting structure is communicated with the inner cavity of the cylinder. The regulating part is arranged in the pressure regulating structure, and when the pressure difference exists between the inner cavity and the back pressure cavity, the regulating part slides in the pressure regulating structure under the action of the pressure difference, so that the head part of the sliding sheet is always contacted with the inner surface of the air cylinder. Like this, at pump body subassembly operation in-process, the regulating part slides in pressure regulation structure under the effect of pressure differential, with the pressure differential between the inner chamber of regulation cylinder and the backpressure chamber, ensure that the head of gleitbretter is contacted with the cylinder all the time, and then prevent pump body subassembly in exhaust stage gleitbretter head and cylinder internal surface to disengage and lead to gleitbretter and cylinder to take place the striking, solved the gleitbretter of pump body subassembly in the prior art easily with the cylinder break away from, influence pump body subassembly working property's problem, reduce pump body subassembly's consumption, promote pump body subassembly's operational reliability.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 shows a cross-sectional view of an embodiment one of a pump body assembly according to the present invention;
FIG. 2 shows an exploded view of the pump body assembly of FIG. 1;
FIG. 3 shows a top view of the pump body assembly of FIG. 1 after the cylinder has been mated with the shaft;
FIG. 4 shows an enlarged schematic view at A of the cylinder of FIG. 3 after engagement with the shaft;
FIG. 5 shows an enlarged schematic view at B of the cylinder of FIG. 3 after engagement with the shaft;
FIG. 6 shows an enlarged schematic view of FIG. 5 at C after the cylinder has been mated with the shaft;
FIG. 7 shows a partial perspective view of the rotor portion of the pump body assembly of FIG. 2;
FIG. 8 shows a schematic perspective view of the adjustment member of FIG. 3;
FIG. 9 shows a top view of a cylinder mated with a spindle of a second embodiment of a pump body assembly according to the present invention;
FIG. 10 shows a partial perspective view of the rotor portion of the pump body assembly of FIG. 9; and
fig. 11 shows a schematic perspective view of an adjuster of the pump body assembly of fig. 9.
Wherein the above figures include the following reference numerals:
11. an upper flange; 12. a lower flange; 20. a cylinder; 21. an inner cavity; 30. a rotating shaft; 31. a rotor section; 311. a slide groove; 311a, back pressure chamber; 312. a first trough section; 312a, a first sub-slot section; 312b, a second sub-slot section; 313. a receiving groove section; 314. a second trough section; 314a, a third sub-slot section; 314b, fourth sub-slot segment; 32. a spindle center hole; 33. a rotating shaft side hole; 40. a sliding sheet; 50. an adjusting member; 51. a slip mating surface; 60. a motor; 70. an oil pump.
Detailed Description
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The invention will be described in detail below with reference to the drawings in connection with embodiments.
It is noted that all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs unless otherwise indicated.
In the present invention, unless otherwise indicated, terms of orientation such as "upper" and "lower" are used generally with respect to the orientation shown in the drawings or to the vertical, vertical or gravitational orientation; also, for ease of understanding and description, "left, right" is generally directed to the left, right as shown in the drawings; "inner and outer" refer to inner and outer relative to the outline of the components themselves, but the above-described orientation terms are not intended to limit the present invention.
In order to solve the problem that the sliding vane of the pump body assembly is easy to separate from the air cylinder and influence the working performance of the pump body assembly in the prior art, the application provides a pump body assembly, a compressor and heat exchange equipment.
Example 1
As shown in fig. 1 to 3, the pump body assembly includes a rotation shaft 30, a pressure adjusting structure, and an adjusting member 50. Wherein the rotor part 31 of the rotary shaft 30 has a slide groove 311 for accommodating the slide 40. One end of the pressure adjusting structure is communicated with the back pressure cavity 311a of the slide groove 311, and the other end of the pressure adjusting structure is communicated with the inner cavity 21 of the cylinder 20. The adjusting member 50 is disposed in the pressure adjusting structure, and when there is a pressure difference between the inner chamber 21 and the back pressure chamber 311a, the adjusting member 50 slides in the pressure adjusting structure under the action of the pressure difference, so that the head of the sliding vane 40 is always in contact with the inner surface of the cylinder 20.
By applying the technical scheme of the embodiment, in the operation process of the pump body assembly, the adjusting piece 50 slides in the pressure adjusting structure under the action of pressure difference so as to adjust the pressure difference between the inner cavity 21 of the cylinder 20 and the back pressure cavity 311a, the head of the sliding vane 40 is ensured to be always in contact with the cylinder 20, the sliding vane 40 and the cylinder 20 are prevented from being impacted due to the fact that the head of the sliding vane 40 and the inner surface of the cylinder 20 are separated in the exhaust stage of the pump body assembly, the problems that the sliding vane of the pump body assembly is easy to separate from the cylinder and the working performance of the pump body assembly is influenced in the prior art are solved, the power consumption of the pump body assembly is reduced, and the operation reliability of the pump body assembly is improved.
In the present embodiment, the pressure regulating structure is a communication groove provided on the rotor portion 31. Like this, when there is pressure differential between inner chamber 21 and back pressure chamber 311a, regulating part 50 slides in the intercommunication inslot to adjust the pressure differential between the two, guarantee that the head of gleitbretter 40 contacts with the internal surface of cylinder 20 all the time, prevent to take place to leap up the gas phenomenon between compression chamber and the exhaust chamber, and then promote the operational reliability of pump body subassembly.
In the present embodiment, the communication groove is provided on the side of the rotor portion 31 facing the upper flange 11, and the cylinder 20 is located between the upper flange 11 and the lower flange 12.
As shown in fig. 4 to 7, the communication groove includes a first groove section 312, a receiving groove section 313 and a second groove section 314 which are sequentially communicated, the first groove section 312 is communicated with the inner cavity 21, the second groove section 314 is communicated with the back pressure chamber 311a, the regulating member 50 is movably disposed in the receiving groove section 313, and when the pressure of the inner cavity 21 is smaller than that of the back pressure chamber 311a, the regulating member 50 is slid to the communicating position of the first groove section 312 and the receiving groove section 313 to cut off the communicating state of the first groove section 312 and the receiving groove section 313. The structure is simple and easy to process and realize.
Specifically, during the suction phase of the pump body assembly, the pressure of the inner cavity 21 is smaller than the pressure in the back pressure cavity 311a, that is, the force F1 provided by the back pressure cavity 311a to the regulator 50 is larger than the force F2 provided by the inner cavity 21 to the regulator 50 (the force F2 is smaller during the suction phase of the pump body assembly, and is larger during the discharge phase of the pump body assembly, and is larger during the overcompression), the regulator 50 moves toward the first groove section 312 under the pressure until moving to the connection position of the first groove section 312 and the accommodating groove section 313, so that the first groove section 312 and the accommodating groove section 313 are disconnected, and the inner cavity 21 is disconnected from the back pressure cavity 311a. At this time, the pressure in the back pressure cavity 311a is still greater than the pressure in the inner cavity 21, and the head of the slide sheet 40 abuts against the inner surface of the cylinder 20 under the back pressure effect, so as to ensure the normal operation of the pump body assembly.
In the present embodiment, when the pressure of the inner chamber 21 is greater than the pressure of the back pressure chamber 311a, the regulator 50 slides within the accommodation groove section 313 to communicate the first groove section 312 with the second groove section 314. Thus, in the exhaust stage of the pump body assembly, the pressure in the inner chamber 21 is greater than the pressure in the back pressure chamber 311a, and the regulator 50 moves toward the second groove section 314 under pressure to communicate the second groove section 314 with the first groove section 312 until the pressure value in the inner chamber 21 is equal to the pressure value in the back pressure chamber 311a. Thus, in the rotation process of the rotating shaft 30, the above arrangement can reduce the acting force from the inner cavity 21 on the head of the slide sheet 40, relatively increase the pressure value in the back pressure cavity 311a, further ensure that the head of the slide sheet 40 contacts with the inner surface of the cylinder 20, and further improve the working performance and the operation reliability of the pump body assembly.
As shown in fig. 5 and 7, the second groove section 314 is a recess formed on the groove wall of the slide groove 311, and the recess extends toward the tail of the slide groove 311 to communicate with the back pressure chamber 311a. Thus, the second tank section 314 communicates with the back pressure chamber 311a, and the communication state of the back pressure chamber 311a with the first tank section 312 and the inner chamber 21 can be controlled by controlling the communication state of the second tank section 314 with the first tank section 312. The above arrangement makes the rotor portion 31 of the rotary shaft 30 simple in structure and easy to process, and reduces the processing cost of the pump body assembly.
As shown in fig. 8, the regulating member 50 has a columnar structure. Specifically, the communication between the first slot segment 312 and the receiving slot segment 313 is an arc surface. The above arrangement ensures that the adjusting member 50 can seal the connection part between the first groove section 312 and the accommodating groove section 313 so as to realize the sealing of the connection part, the pressure value in the back pressure cavity 311a and the pressure value in the inner cavity 21 after sealing cannot be balanced, the pressure value in the back pressure cavity 311a can be ensured to be larger than the pressure value in the inner cavity 21 during the air suction stage, the stress of the sliding vane 40 is directed to the air suction side, the head of the sliding vane 40 is ensured to be tightly attached to the inner surface of the air cylinder 20, and the air suction of the pump body assembly is realized. At the same time, the above arrangement makes sliding of the adjustment member 50 within the accommodation groove section 313 easier. The structure is simple and easy to process.
Alternatively, the adjusting member 50 is a cylinder with a columnar structure after finishing.
As shown in fig. 5 to 7, the groove wall of the accommodating groove section 313 on the side close to the second groove section 314 is a step surface, and the step surface is disposed along the axial direction of the pump body assembly, when the pressure of the inner cavity 21 is greater than the pressure of the back pressure cavity 311a, the gas in the inner cavity 21 flows through the second groove section 314 through the step surface to enter the back pressure cavity 311a. Specifically, the step surface is a longitudinal step surface formed by a first groove wall and a second groove wall connected in sequence, and the first groove wall is provided near the upper surface of the rotor portion 31. When the pressure of the inner chamber 21 is greater than the pressure of the back pressure chamber 311a, the regulator 50 moves toward the stepped surface and abuts against the second groove wall, and the high-pressure gas in the inner chamber 21 enters into the back pressure chamber 311a through the stepped surface, so that the pressure values in the back pressure chamber 311a and the inner chamber 21 are equal, and the pressure value in the back pressure chamber 311a is increased.
Specifically, in the exhaust stage of the pump body assembly, there is an overcompression phenomenon that the pressure value in the inner cavity 21 is greater than the exhaust pressure, the force F1 provided by the back pressure cavity 311a to the regulator 50 is smaller than the force F2 provided by the inner cavity 21 to the regulator 50, the regulator 50 moves toward the back pressure cavity 311a under the action of the pressure difference, and the regulator 50 moves to the step surface to stop. At this time, the high-pressure gas enters the back pressure chamber 311a through the first groove section 312, the accommodating groove section 313, and the second groove section 314 due to the step surface. Because the back pressure cavity 311a and the inner cavity 21 are in a communicating state, the pressure of the back pressure cavity 311a and the inner cavity 21 can be balanced, and finally the acting force F1 is equal to the acting force F2, the acting force of the sliding vane 40 moving towards the sliding vane groove 311 is disappeared, the head of the sliding vane 40 is ensured not to be separated from the inner surface of the air cylinder 20, no impact is generated, and the energy consumption, vibration and noise of the pump body assembly are reduced.
As shown in fig. 5 to 7, the first slot section 312 includes a first sub-slot section 312a and a second sub-slot section 312b that are sequentially connected, and are disposed at an included angle, and the first sub-slot section 312a is disposed away from the accommodating slot section 313 relative to the second sub-slot section 312 b. Wherein the width of the first sub-slot segment 312a is greater than the width of the second sub-slot segment 312 b. Like this, the above-mentioned setting not only makes the gas in the inner chamber 21 get into in the first slot segment 312 more easily, and make the pressure value of the gas that gets into in the second sub-slot segment 312b increase, and then reduce the gas flow between first slot segment 312 and the back pressure chamber 311a of pump body subassembly when inhaling the stage, the gas flow between first slot segment 312 and the back pressure chamber 311a when increasing the pump body subassembly in the exhaust stage, and then the pressure value in the back pressure chamber 311a of increase, make the pump body subassembly in the operation in-process gleitbretter 40's head contact with the internal surface of cylinder 20 all the time, prevent the pump body subassembly to vibrate and produce the noise, improve user's use experience, promote the working property of pump body subassembly.
In the present embodiment, the cylinder 20 is a rolling bearing type cylinder. Like this, in the rotation process of pivot 30, the inner circle of cylinder 20 also can rotate, and then reduces the frictional force between internal surface and the gleitbretter 40 of cylinder 20, reduces the friction consumption of pump body subassembly, promotes the work efficiency of pump body subassembly.
As shown in fig. 1 and 7, in the axial direction of the rotary shaft 30, the height of the rotor portion 31 is H, the depth of the communication groove is H, and the following is satisfiedThus, in the operation process of the pump body assembly, the above arrangement ensures that the pressure value in the back pressure chamber 311a can be adjusted during the sliding process of the adjusting member 50 in the communicating groove, so as to ensure the pressure adjusting function of the adjusting member 50.
The present application also provides a compressor (not shown) comprising the pump body assembly described above. The compressor further includes a motor 60 and an oil pump 70 connected to the rotary shaft 30 of the pump body assembly. During operation of the compressor, the motor drives the lower rotating shaft 30 to rotate, and the sliding vane 40 is extended from the sliding vane groove 311 by centrifugal force and contacts with the inner surface of the cylinder 20. With the smooth operation of the compressor, the sliding vane 40 starts to reciprocate in the sliding vane groove 311, and the head of the sliding vane 40 contacts the inner surface of the cylinder 20 and drives the inner ring of the cylinder 20 to rotate. The 3 sliding sheets 40 and the inner ring of the air cylinder 20 divide the whole crescent cavity into 3 independent cavities, and the 3 cavities are periodically expanded and contracted, so that the air suction, compression and air discharge of the compressor are realized. Among them, the vane 40 and the vane groove 311 form a closed space, which we call back pressure chambers 311a, the back pressure chambers 311a also have 3, and are periodically enlarged and reduced with the operation of the compressor.
As shown in fig. 1, the oil pump 70 is immersed in an oil pool at the bottom of the compressor, and the rotation of the rotation shaft 30 drives the oil pump 70 to rotate. Under the action of the oil pump 70, the lubricating oil enters into the 3 back pressure chambers 311a through the internal oil passages of the pump body assembly, at this time, the 3 back pressure chambers 311a are filled with the lubricating oil, and the oil pressure is the exhaust pressure (high pressure). Specifically, the lubricating oil enters the rotation shaft center hole 32 through the oil sump and enters the back pressure chamber 311a through the rotation shaft side hole 33 and the gap δ between the upper flange 11 and the upper end face of the rotor portion 31, thereby causing the head of the slide 40 to be closely attached to the inner surface of the cylinder 20.
Alternatively, the oil pump 70 is a positive displacement pump.
The present application also provides a heat exchange device (not shown) comprising the compressor described above. Optionally, the heat exchange device is an air conditioner.
Example two
The pump body assembly of the second embodiment differs from that of the first embodiment in that: the operating principle of the adjusting member is different.
As shown in fig. 9 to 11, when the pressure of the inner chamber 21 is greater than the pressure of the back pressure chamber 311a, the regulator 50 moves to the communication of the accommodation groove section 313 and the second groove section 314 to shut off the communication state of the accommodation groove section 313 and the second groove section 314. Thus, during the operation of the pump body assembly, the communication state of the first groove section 312 and the second groove section 314 is always cut off no matter how the pressure of the inner cavity 21 is related to the pressure of the back pressure chamber 311a, so that the inner cavity 21 and the back pressure chamber 311a are not communicated, but the volumes of the two sides of the adjusting member 50 are changed through the movement of the adjusting member 50 in the accommodating groove section 313.
Specifically, the adjusting member 50 is slidably disposed in the accommodating groove section 313 and divides two sides thereof into a first area and a second area, wherein the inner cavity 21 is located in the first area, the back pressure cavity 311a is located in the second area, and during sliding of the adjusting member 50, volumes of the first area and the second area are changed to change the back pressure value in the sliding vane groove 311. In the suction stage of the pump body assembly, the pressure of the inner cavity 21 is smaller than the pressure of the back pressure cavity 311a, the adjusting member 50 slides to the communication position of the first groove section 312 and the accommodating groove section 313 to cut off the communication state of the first groove section 312 and the accommodating groove section 313, the volume of the second area is increased, the volume of the first area is relatively reduced, and the pressure value in the second area is relatively reduced; in the exhaust stage of the pump body assembly, the pressure of the inner cavity 21 is greater than the pressure of the back pressure cavity 311a, the adjusting member 50 moves to the communication position between the accommodating groove section 313 and the second groove section 314 to cut off the communication state between the accommodating groove section 313 and the second groove section 314, the volume of the second region is reduced, the volume of the first region is relatively increased, the pressure value in the second region is relatively increased, the pressure value in the back pressure cavity 311a is increased, and the head of the sliding vane 40 is always in contact with the inner surface of the cylinder 20.
As shown in fig. 9, the adjusting member 50 is a slider, and the accommodating groove section 313 extends from the first groove section 312 to the second groove section 314, so that the slider can slide back and forth in the accommodating groove section 313. The above arrangement ensures that the adjusting member 50 can smoothly slide in the accommodation groove section 313, thereby improving the structural reliability of the pump body assembly. The structure is simple and easy to process and realize.
As shown in fig. 11, the slider has a set of sliding mating surfaces 51 disposed opposite to each other, and a predetermined distance D is provided between the sliding mating surfaces 51 and the groove wall of the accommodation groove section 313, the predetermined distance D being 0.01mm or more and 0.02mm or less. In this way, the above-mentioned value arrangement makes the adjusting member 50 and the sliding surface 51 in a sealing fit, so as to ensure that the adjusting member 50 slides in the accommodating groove section 313, and prevent the gas in the first groove section 312 and the second groove section 314 from being communicated to affect the adjusting performance of the adjusting member 50.
As shown in fig. 10, the second slot section 314 includes a third sub-slot section 314a and a fourth sub-slot section 314b that are sequentially connected, and are disposed at an included angle, and the third sub-slot section 314a is close to the accommodating slot section 313 relative to the fourth sub-slot section 314 b. The fourth sub-groove 314b is a recess formed on the wall of the sliding vane groove 311, and extends toward the tail of the sliding vane groove 311 to communicate with the back pressure chamber 311a. Thus, the fourth sub-tank section 314b communicates with the back pressure chamber 311a, and the communication state of the back pressure chamber 311a with the first tank section 312 and the inner chamber 21 can be controlled by controlling the communication state of the fourth sub-tank section 314b with the first tank section 312. The above arrangement makes the rotor portion 31 of the rotary shaft 30 simple in structure and easy to process, and reduces the processing cost of the pump body assembly.
From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:
in the pump body assembly operation process, the regulating part slides in the pressure regulating structure under the action of pressure difference to adjust the pressure difference between the inner chamber of cylinder and the back pressure chamber, ensure that the head of gleitbretter contacts with the cylinder all the time, and then prevent that pump body assembly from leading to gleitbretter and cylinder to take place the striking at exhaust stage gleitbretter head and cylinder internal surface disconnection, solved the gleitbretter of pump body assembly easily break away from with the cylinder among the prior art, influence pump body assembly working property's problem, reduce pump body assembly's consumption, promote pump body assembly's operational reliability.
It will be apparent that the embodiments described above are merely some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments in accordance with the present application. As used herein, the singular is also intended to include the plural unless the context clearly indicates otherwise, and furthermore, it is to be understood that the terms "comprises" and/or "comprising" when used in this specification are taken to specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that embodiments of the present application described herein may be implemented in sequences other than those illustrated or described herein.
The above description is only of the preferred embodiments of the present invention and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (16)
1. A pump body assembly, comprising:
a rotating shaft (30), wherein a rotor part (31) of the rotating shaft (30) is provided with a slide groove (311) for accommodating a slide (40);
one end of the pressure regulating structure is communicated with a back pressure cavity (311 a) of the sliding vane groove (311), and the other end of the pressure regulating structure is communicated with an inner cavity (21) of the air cylinder (20);
the adjusting piece (50) is arranged in the pressure adjusting structure, when the pressure difference exists between the inner cavity (21) and the back pressure cavity (311 a), the adjusting piece (50) slides in the pressure adjusting structure under the action of the pressure difference, so that the head of the sliding piece (40) is always contacted with the inner surface of the air cylinder (20);
the pressure regulating structure is a communication groove arranged on the rotor part (31); in the axial direction of the rotating shaft (30), the height of the rotor part (31)The degree is H, the groove depth of the communicating groove is H, and the requirements are met
2. Pump body assembly according to claim 1, characterized in that the communication groove comprises a first groove section (312), a containing groove section (313) and a second groove section (314) which are communicated in sequence, the first groove section (312) is communicated with the inner cavity (21), the second groove section (314) is communicated with the back pressure cavity (311 a), the regulating member (50) is movably arranged in the containing groove section (313), and when the pressure of the inner cavity (21) is smaller than the pressure of the back pressure cavity (311 a), the regulating member (50) slides to the communication position of the first groove section (312) and the containing groove section (313) so as to cut off the communication state of the first groove section (312) and the containing groove section (313).
3. Pump body assembly according to claim 2, characterized in that when the pressure of the internal cavity (21) is greater than the pressure of the back pressure cavity (311 a), the regulator (50) slides inside the containing groove section (313) so as to put the first groove section (312) in communication with the second groove section (314).
4. A pump body assembly according to claim 3, wherein the second groove section (314) is a recess formed in a groove wall of the slide groove (311), and the recess extends toward a rear portion of the slide groove (311) to communicate with the back pressure chamber (311 a).
5. A pump body assembly according to claim 3, wherein the adjustment member (50) is of cylindrical configuration.
6. A pump body assembly according to claim 3, wherein the groove wall of the accommodating groove section (313) on the side close to the second groove section (314) is a step surface, and the step surface is arranged along the axial direction of the pump body assembly, when the pressure of the inner cavity (21) is greater than the pressure of the back pressure cavity (311 a), the gas in the inner cavity (21) flows through the second groove section (314) through the step surface to enter the back pressure cavity (311 a).
7. Pump body assembly according to claim 2, wherein when the pressure of the internal cavity (21) is greater than the pressure of the back pressure chamber (311 a), the regulator (50) moves to the communication of the containing groove section (313) with the second groove section (314) to cut off the communication state of the containing groove section (313) and the second groove section (314).
8. Pump body assembly according to claim 7, wherein the adjustment member (50) is a slider, the receiving groove section (313) extending from the first groove section (312) in the direction of the second groove section (314) so that the slider can slide back and forth within the receiving groove section (313).
9. Pump body assembly according to claim 8, wherein the slide block has a set of oppositely disposed slip fit faces (51), the slip fit faces (51) having a predetermined distance D from the groove walls of the receiving groove section (313), the predetermined distance D being equal to or greater than 0.01mm and equal to or less than 0.02mm.
10. Pump body assembly according to any one of claims 2 to 9, wherein the first groove section (312) comprises a first sub groove section (312 a) and a second sub groove section (312 b) which are sequentially communicated and are arranged at an angle, the first sub groove section (312 a) being arranged away from the accommodation groove section (313) relative to the second sub groove section (312 b).
11. The pump body assembly of claim 10, wherein the first sub-groove section (312 a) has a width that is greater than a width of the second sub-groove section (312 b).
12. The pump body assembly of claim 7, wherein the second groove section (314) comprises a third sub groove section (314 a) and a fourth sub groove section (314 b) which are sequentially communicated, and are arranged at an included angle, and the third sub groove section (314 a) is arranged close to the accommodating groove section (313) relative to the fourth sub groove section (314 b).
13. Pump body assembly according to claim 12, characterized in that the fourth sub-groove section (314 b) is a recess provided on the groove wall of the slide groove (311), and the recess extends towards the tail of the slide groove (311) to communicate to the back pressure chamber (311 a).
14. Pump body assembly according to claim 1, characterized in that the cylinder (20) is a rolling bearing cylinder.
15. A compressor comprising the pump body assembly of any one of claims 1 to 14.
16. A heat exchange apparatus comprising the compressor of claim 15.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375208.XA CN108397383B (en) | 2018-04-24 | 2018-04-24 | Pump body assembly, compressor and heat exchange equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810375208.XA CN108397383B (en) | 2018-04-24 | 2018-04-24 | Pump body assembly, compressor and heat exchange equipment |
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| CN108397383A CN108397383A (en) | 2018-08-14 |
| CN108397383B true CN108397383B (en) | 2024-04-16 |
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| CN201810375208.XA Active CN108397383B (en) | 2018-04-24 | 2018-04-24 | Pump body assembly, compressor and heat exchange equipment |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111065824B (en) * | 2018-08-16 | 2022-07-26 | Lg电子株式会社 | Rotary compressor |
| CN108953154A (en) * | 2018-08-31 | 2018-12-07 | 珠海格力电器股份有限公司 | Main shaft, compressor and the air conditioner of compressor |
| CN109026695B (en) * | 2018-09-25 | 2023-08-11 | 珠海格力电器股份有限公司 | Pump body assembly and rotary vane compressor |
| CN109737065B (en) | 2019-02-27 | 2024-04-16 | 珠海格力电器股份有限公司 | Pump body assembly, compressor and air conditioning equipment |
| CN112324660B (en) * | 2020-10-09 | 2021-10-15 | 珠海格力电器股份有限公司 | Pump body subassembly, compressor and air conditioner |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202326244U (en) * | 2011-12-12 | 2012-07-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and air conditioner |
| CN103161729A (en) * | 2011-12-12 | 2013-06-19 | 珠海格力节能环保制冷技术研究中心有限公司 | A rotary compressor and an air conditioner |
| JP2014125962A (en) * | 2012-12-26 | 2014-07-07 | Calsonic Kansei Corp | Gas compressor |
| CN105402130A (en) * | 2015-11-20 | 2016-03-16 | 珠海格力电器股份有限公司 | Compressor slip sheet backpressure structure, compressor and air-conditioner |
| CN208236644U (en) * | 2018-04-24 | 2018-12-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, compressor and heat exchange equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4060149B2 (en) * | 2002-08-30 | 2008-03-12 | カルソニックコンプレッサー株式会社 | Gas compressor |
-
2018
- 2018-04-24 CN CN201810375208.XA patent/CN108397383B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202326244U (en) * | 2011-12-12 | 2012-07-11 | 珠海格力节能环保制冷技术研究中心有限公司 | Rotary compressor and air conditioner |
| CN103161729A (en) * | 2011-12-12 | 2013-06-19 | 珠海格力节能环保制冷技术研究中心有限公司 | A rotary compressor and an air conditioner |
| JP2014125962A (en) * | 2012-12-26 | 2014-07-07 | Calsonic Kansei Corp | Gas compressor |
| CN105402130A (en) * | 2015-11-20 | 2016-03-16 | 珠海格力电器股份有限公司 | Compressor slip sheet backpressure structure, compressor and air-conditioner |
| CN208236644U (en) * | 2018-04-24 | 2018-12-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Pump assembly, compressor and heat exchange equipment |
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