CN1888439A - Compression unit with lubricant oil supply device - Google Patents
Compression unit with lubricant oil supply device Download PDFInfo
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- CN1888439A CN1888439A CN 200510014141 CN200510014141A CN1888439A CN 1888439 A CN1888439 A CN 1888439A CN 200510014141 CN200510014141 CN 200510014141 CN 200510014141 A CN200510014141 A CN 200510014141A CN 1888439 A CN1888439 A CN 1888439A
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- fluid
- gear
- suction pipe
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- lubricant oil
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Abstract
The present invention relates to a compression unit with lubricating oil supply device. It includes exterior gear, said exterior gear is inserted into the interior of cylinder body on which a gear inserting hole is formed; interior gear, said interior gear is eccentrically inserted into the described exterior gear and formed into several fluid compression spaces; a suction hole and a discharge hole which can be used for sucking and discharging the lubricating oil and fluid gasified in the described fluid compression space. It is characterized by that it also includes a suction pipe, it is used for sucking lubricating oil stored in the described external shell, after the fluid to be compressed and lubricating oil are gasified, for spraying the gasified fluid and lubricating oil into the space of external shell interior.
Description
Technical field
The present invention relates to a kind of.Particularly relate to a kind of.
Compressor is the device of compressed fluid, constitutes the part of freeze cycle, and is widely used for the refrigerating and air conditioning machine of air conditioner, refrigerator etc.Compressor has multiple compress mode, wherein utilizes the compressor of gear to be used for the industry scene.
Background technique
Fig. 1 is the sectional view of ordinary gear type compressor;
Fig. 2 is the sectional view of ordinary gear type cylinder of compressor body.
As depicted in figs. 1 and 2, compressor is made of following parts: shell 90, have certain inside space, and its inner space contains lubricant oil 94; Electrodynamic element 70 is housed on the described shell 90, produces driving force; Compression unit 80, the driving force of the described electrodynamic element 70 that transmits by live axle 75 is come pressurized gas.This compressor produces driving force by applying power supply at electrodynamic element 70, and this driving force is delivered to compression unit suction gas after 80s, discharges after compression again.
One side of described shell 90 is provided with the suction pipe 60 that sucks fluid, and opposite side is formed with discharge tube 65.The inner space of described shell 90 is divided into two parts by baffle plate 95, is specially: area of low pressure 96, be provided with suction pipe 60, and the fluid that sucks in this zone by saturated; High-pressure area 97, compressed fluid are discharged by discharge tube 65 by saturated back in this zone.
In the described compression unit 80, on cylinder 30, insert outer gear 20, insert internal gear 10 in this outer gear 20 with gear patchhole.
Described internal gear 10 forms annular shape, inserts live axle and transmission of drive force on the inner circumferential surface, and is formed with a plurality of external tooths 15 on its outer circumferential face.
Described outer gear 20 form annular shapes and within it side form the space that can accommodate described internal gear 10, and be formed with the internal tooth 25 of Duoing on the inner circumferential surface, make it possible to insert the external tooth 15 of described internal gear 10 than external tooth 15 numbers of described internal gear 10.At this moment, the center O of described internal gear 10
1Center O with described outer gear 20
2Keep at a certain distance away and eccentric each other.
After contacting with each other between the external tooth 15 of described internal gear 10 and the internal tooth 25 of described outer gear 20, between its external tooth 15 and internal tooth 25, form a plurality of interdental spaces.Because compressed fluid on this interdental spaces, thereby also may be defined as the fluid compression volume.When internal gear rotated to clockwise direction, a plurality of fluid compression volumes were with the center O of the internal gear 10 in described outer gear 20 outer circumferential faces of distance
1Point A farthest is the right handed while of benchmark, divides into 180 ° of-360 ° of zones of spatial expansion and 0 ° of-180 ° of zone that the space dwindles.
Described outer gear 20 is inserted on the cylinder 30 with gear patchhole, the inner peripheral surface of the outer circumferential face of described outer gear 20 contact cylinder 30 and supported.The cross section of the gear patchhole of described cylinder 30 forms complete circle.At this moment, be separated with a little gap of moving about between usually on the inner peripheral surface of the outer circumferential face of described outer gear 20 and cylinder 30, make it possible to rotation and lubricant oil 94 can be permeated.
First and second bearing 40,50 that disposes the rotation of Support Gear and sealing gear compression volume on axle direction two ends of described cylinder 30 and can compressed fluid.
The upper side that described clutch shaft bearing 40 circularizes shape, one side and described cylinder 30, outer gear 20 and internal gear 10 is provided with in contact.Described clutch shaft bearing 40 is provided with the exhaust port 45 that compressed fluid is discharged to the high-pressure area.
The bottom side that described second bearing 50 circularizes shape, one side and described cylinder 30, outer gear 20 and internal gear 10 is provided with in contact, with the tooth 15 of clutch shaft bearing 40 sealed external gears 20 and internal gear 10, internal tooth 25 forms the fluid compression volume thus.Be formed with on described second bearing 50 fluid that will compress from the area of low pressure 96 suction ports 55 that are drawn into the fluid compression volume.
The compression unit of this gear-type is to utilize the Volume Changes of the fluid compression volume that the internal tooth 25 of the external tooth 15 of internal gear 10 of the eccentric and rotation in center and outer gear 20 forms to come compressed fluid.
Below, the working procedure of the compression unit of detailed description gear-type: clockwise turn to example with internal gear.
After described electrodynamic element 70 started, live axle 75 rotated described internal gear 10.Along with described internal gear 10 rotations, external tooth 15 contacts and transmission of drive force with the internal tooth 25 of described outer gear 20, and rotates described outer gear 20 thus.The outer circumferential face of described outer gear 20 contacts with the inner peripheral surface of described cylinder 30 and is supported.The fluid that sucks by suction pipe 60 in the enclosure the area of low pressure 96 of portion by saturated.Be inhaled into by suction port 55 by the fluid of saturated gaseous state like this and form the fluid compression volume between the tooth of gear, and move after being enclosed in the fluid compression volume.The fluid that is inhaled into is with the center O of the described internal gear 10 in the periphery of described outer gear 20
1Point A farthest is the center when clockwise direction rotates, and the compression volume of described internal gear 10 and outer gear 20 dwindles gradually, and the fluid that gradually reduces thus.Exhaust port 45 is formed on the position that fluid reaches suitable pressure, and discharges fluid to high-pressure area 97 thus.Internal gear 10 continues to form once more along the clockwise direction rotation zone of fluid compression volume expansion, and sucks fluid in the zone of this expansion by suction port 55.Repeat this process and compressed fluid continuously.The fluid that is discharged to high-pressure area 97 is discharged from by discharge tube 65.
At this moment, the lubricant oil 94 that is housed in the shell 90 is not shown mobile by the lubricating oil flow path that is formed on the live axle 75, thereby surface of contact and described internal gear 10 between the outer circumferential face of lubricated outer gear 20 and the inner peripheral surface of cylinder 30, the surface of contact between the outer gear 20 and second bearing.
Owing to contacting with each other, the internal tooth 25 of the external tooth 15 of described internal gear 10 and outer gear 20 forms compressed fluid behind the fluid compression volume, though need be lubricated by lubricant oil, but the fluid compression volume need be kept air-tight state for compressed fluid, so lubricating oil flow path is difficult to form.
There is following shortcoming in above-mentioned existing compression unit: because lubricating oil flow path is difficult to shape, the between cog wearing and tearing occurs, but also can further develop, and produce the noise that friction causes.When serious wear, leak fluid on the fluid compression volume that the between cog of gear forms and reduce compression efficiency.
Summary of the invention
Technical problem to be solved by this invention is, overcomes to go up the shortcoming that the existing compression unit of art exists, and a kind of between cog of oilgear swimmingly is provided, and prevents to wear and tear and suppress the compression unit of the oil feeding device of noise.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of compression unit of oil feeding device, outer gear is inserted in the cylinder block of formative gear patchhole, internal gear inserts prejudicially and forms a plurality of fluid compression volumes on the described outer gear, and be formed with suction port and the exhaust port supplying with and discharge at vaporized lubricant oil of described fluid compression volume and fluid, it is characterized in that: also include suction pipe, after suction is stored in the interior lubricant oil of described shell, after the fluid that will compress and lubricant oil are gasified together, spray to the space of described enclosure.
Described suction pipe comprises: first suction pipe, dwindle after keeping certain state earlier with its internal diameter of drum of hollow; Second suction pipe is connected on the position that the internal diameter of described first suction pipe dwindles, and is used to suck lubricant oil.
Described suction port is positioned at the zone of the fluid space expansion that the internal tooth of the external tooth of described internal gear and described outer gear forms.
The zone that the section of described suction port strides across the expansion of fluid compression volume forms egg-shape, allows to suck constantly fluid.
The invention has the beneficial effects as follows: the present invention need not provide extra lubricating oil flow path after the motion of the between cog of gear contacts with each other, and also supplying lubricating oil swimmingly has the wearing and tearing of preventing thus and reduces noise.
Because prevented the wearing and tearing that cause because of friction, can leak fluid on the fluid compression volume that the between cog of gear forms and raise the efficiency.
Description of drawings
Fig. 1 is the sectional view of ordinary gear type compressor;
Fig. 2 is the sectional view of ordinary gear type cylinder of compressor body;
Fig. 3 is the sectional view of compression unit of the present invention;
Fig. 4 is the sectional view of cylinder block of the present invention.
Among the figure:
100: internal gear 200: outer gear
400: 500: the second bearings of clutch shaft bearing
450: lubricant oil tap hole 550: the lubricant oil inlet hole
700: electrodynamic element 750: live axle
800: compression unit 300: cylinder block
940: 620: the second suction pipes of lubricant oil
Embodiment
Below, with reference to the drawings and specific embodiments the present invention is described in further detail:
Fig. 3 is the sectional view of compression unit of the present invention;
Fig. 4 is the sectional view of cylinder block of the present invention.
As shown in Figure 3 and Figure 4, have the compression unit of oil feeding device, comprising: shell 900,, electrodynamic element 700, be housed on the described shell 900, produce driving force; Compression unit 800, the driving force of the described electrodynamic element 700 that transmits by live axle 750 is come compressed fluid.
Described compression unit 800 comprises: shell 900 forms outward appearance and contains lubricant oil 940; Cylinder block 300 is positioned at described shell 900 inside, has the gear patchhole; Outer gear 200 has 7 internal tooths 250 on the inner circumferential surface, and rotatably inserts on the patchhole of described outer gear 200; The number that internal gear 100, its outer circumferential face are provided with 6 external tooth 150 its teeth is less than described internal tooth 250, inserts in the described outer gear 200, forms a plurality of fluid compression volumes with the internal tooth 250 of described outer gear 200; First and second bearing 400,500 is positioned at the axial both-side ends of described cylinder block 300, rotatably Support Gear 100,200 and seal described fluid compression volume; Suction pipe 600 sucks fluid and lubricant oil 940 backs that the lubricant oil 940 back gasifications be housed in the described shell 900 will compress and sprays to described shell 900 volume inside; Suck 550, be formed on described second bearing 500, supply with vaporized lubricant oil 940 and fluid to described fluid compression volume; Exhaust port 450 is formed on the described clutch shaft bearing 400, discharges fluid from described fluid compression volume.
One side of described shell 900 is provided with the suction pipe 600 that sucks fluid, and opposite side is formed with discharge tube 650.The inner space of described shell 900 is divided into two parts by baffle plate 950, is specially: area of low pressure 960, be provided with suction pipe 600, and the fluid that sucks in this zone by saturated; High-pressure area 970, compressed fluid are discharged by discharge tube 650 by saturated back in this zone.
Described cylinder block 300 is a cylindrical shape, and gear one side is inserted the formed insertion of the outer surface space of described outer gear 200 backs and described outer gear for circular.
It is bigger a little than the external diameter of described outer gear 200 that described gear inserts the space, and preferably have the gap of moving about that can infiltrate working oil.
Described outer gear 200 forms annular, and inner circumferential surface formation internal tooth 250, and described internal tooth 250 can insert the external tooth 150 of described internal gear 100.Among the present invention, the number of described internal tooth 250 is more than the quantity of the external tooth 150 of described internal gear 100, and internal tooth 250 is 7.
Described outer gear 200 is along with contacting with the external tooth 150 of internal gear 100, and the driving force of passing through to be transmitted is rotated.Outer gear 200 can not rotated yet, but described outer gear 200 is when rotating with described internal gear 100, can maintenance energy and the equilibrium of torque, can reduce vibration and noise thus.Particularly, a plurality of external tooths 150 are with after internal tooth 250 contacts, and have the power that portion within it produces and have the effect of dispersion, and simple in structure.
Described internal gear 100 is annular shape, can rotate by live axle 750 transferring power of inner tight combination.Among the present invention, external tooth 150 numbers of described internal gear 100 are 6, but also can not limit the external tooth number, as long as be less than internal tooth 250 numbers of described outer gear 200.The shape of the external tooth 150 of described internal gear 100 can have multiple shape, and being preferably formed tooth curve is cycloid.
The shape of described internal tooth 250 can have multiple shape, is preferably constituted by 3 circular arcs with different curvature.
After contacting with each other between the external tooth 150 of described internal gear 100 and the internal tooth 250 of described outer gear 200, between its external tooth 150 and internal tooth 250, form a plurality of fluid compression volumes.When internal gear 100 rotated to clockwise direction, a plurality of fluid compression volumes were with the center O of the internal gear 100 in described outer gear 200 outer circumferential faces of distance
1Point A farthest is the right handed while of benchmark, divides into 180 ° of-360 ° of zones of spatial expansion and 0 ° of-180 ° of zone that the space dwindles.The center O of described internal gear 100
1Center O with described outer gear 200
2Keep at a certain distance away and eccentric each other.
The upper side that described clutch shaft bearing 400 circularizes shape, one side and described cylinder block 300, outer gear 200 and internal gear 100 is provided with in contact.Described clutch shaft bearing 400 is provided with the exhaust port 450 that compressed fluid is discharged to high-pressure area 970.
Described second bearing 500 is provided with in contact with the bottom side of annular shape, one side and described cylinder block 300, outer gear 200 and internal gear 100, the fluid compression volume that forms with the tooth of clutch shaft bearing 400 sealed external gears and internal gear.Be formed with on described second bearing 500 the fluid that will compress from the area of low pressure 960 suction ports 550 that are drawn into the fluid compression volume.
Described suction port 550 preferably is arranged on the zone that the fluid compression volume expands gradually.That is, when internal gear 100 along clockwise direction rotation, in the periphery of described outer gear 200 with apart from described internal gear 200 center O
1Point A farthest is the center, rotates and the expansion fluid compression volume along clockwise direction internal gear 100 between 180 °～360 °, thereby preferably forms suction port 550 in this zone.This is because in this zone, along with the gear rotation, the fluid compression volume is expanded, thereby pressure descends, also can suck fluid swimmingly.
Described suction port 550 connects second bearings 500 and forms, and its section shape is egg-shape, can make in the zone that the fluid compression volume is expanded gradually and can suck fluid constantly.
Described exhaust port 450 connects described clutch shaft bearings 400 and forms, and is arranged on preferably that the fluid compression volume dwindles and compressed fluid reaches the zone of suitable pressure.
Described suction pipe 600 comprises: first suction pipe 610, and with the hollow cylinder shape, its internal diameter is by dwindling greatly; Second suction pipe 620 on the position after the internal diameter that is connected described first suction pipe 610 dwindles, is used to suck lubricant oil 940.
One side of first suction pipe 610 is with after liquid container (not shown) etc. is connected, and the fluid that suction will be compressed, opposite side are arranged in the area of low pressure 960 of shell 900 openly.
On the position after the internal diameter that one side of second suction pipe 620 is connected described first suction pipe 610 dwindles, opposite side is immersed in the lubricant oil that is stored in the shell 900.
Further specify working procedure of the present invention below.
After described electrodynamic element 700 started, live axle 750 rotated described internal gear 100, and contacted the back transmission of drive force with the internal tooth 250 of described outer gear 200 by the external tooth 150 of described internal gear 100, thereby rotated described outer gear 200.The area of low pressure 960 of portion is by saturated in the enclosure for the fluid that sucks by suction pipe 600, and lubricant oil 940 was extracted up the back by second suction pipe 620 and was ejected in the area of low pressure 960 after gasifying with the fluid that will compress that flows first suction pipe 610 in this moment.
According to Bernoulli's equation, in the place that the internal diameter of described suction pipe 600 reduces, speed increases back pressure and descends, and lubricant oil 940 flows in first suction pipe 610 thus.After being mixed together, lubricant oil 940 that is flowed into and the fluid of preparing compression be ejected into area of low pressure 960.
In area of low pressure 960, the mixed gas that is in the fluid of saturation state and lubricant oil is inhaled into the fluid compression volume that the between cog by gear forms by suction port 550, and moves when being in the fluid compression volume and be compressed.
That is, with after the fluid that will compress mixes, provide lubricated smoothly, thereby do not form extra lubricating oil flow path and also can carry out lubricated smoothly to the inter-proximal areas of gear with lubricant oil.
Claims (4)
1. the compression unit of an oil feeding device, comprise: outer gear (200) is inserted in the cylinder block (300) of formative gear patchhole, internal gear (100) inserts described outer gear (200) prejudicially and upward forms a plurality of fluid compression volumes, and be formed with suction port (550) and the exhaust port (450) supplying with and discharge at vaporized lubricant oil of described fluid compression volume (940) and fluid, it is characterized in that: also include suction pipe (600), after suction is stored in the interior lubricant oil of described shell, after the fluid that will compress and lubricant oil are gasified together, spray to the space of described enclosure.
2. according to the compression unit of claim 1 described oil feeding device, it is characterized in that: described suction pipe (600) comprising: first suction pipe (610), dwindle after keeping certain state earlier with its internal diameter of drum of hollow; Second suction pipe (620) is connected on the position that the internal diameter of described first suction pipe dwindles, and is used to suck lubricant oil.
3. according to the compression unit of claim 1 described oil feeding device, it is characterized in that: described suction port (550) is positioned at the zone of the fluid space expansion that the internal tooth (250) of the external tooth (150) of described internal gear (100) and described outer gear (200) forms.
4. according to the compression unit of claim 3 described oil feeding devices, it is characterized in that: the section shape of described suction port (500) is an egg-shape, can make in the zone that the fluid compression volume is expanded gradually and can suck fluid constantly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014141 CN1888439A (en) | 2005-06-29 | 2005-06-29 | Compression unit with lubricant oil supply device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510014141 CN1888439A (en) | 2005-06-29 | 2005-06-29 | Compression unit with lubricant oil supply device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1888439A true CN1888439A (en) | 2007-01-03 |
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ID=37577726
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510014141 Pending CN1888439A (en) | 2005-06-29 | 2005-06-29 | Compression unit with lubricant oil supply device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1888439A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246533A (en) * | 2015-06-09 | 2016-12-21 | 松下电器产业株式会社 | liquid pump and Rankine cycle device |
-
2005
- 2005-06-29 CN CN 200510014141 patent/CN1888439A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106246533A (en) * | 2015-06-09 | 2016-12-21 | 松下电器产业株式会社 | liquid pump and Rankine cycle device |
| CN106246533B (en) * | 2015-06-09 | 2019-11-22 | 松下电器产业株式会社 | Liquid pump and Rankine cycle device |
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