CN108425825B - Swash plate device of variable displacement compressor - Google Patents
Swash plate device of variable displacement compressor Download PDFInfo
- Publication number
- CN108425825B CN108425825B CN201810157409.2A CN201810157409A CN108425825B CN 108425825 B CN108425825 B CN 108425825B CN 201810157409 A CN201810157409 A CN 201810157409A CN 108425825 B CN108425825 B CN 108425825B
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- CN
- China
- Prior art keywords
- swash plate
- angle adjusting
- rotating shaft
- fixed
- adjusting disc
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
- F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
- F04B27/0804—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B27/0821—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication
- F04B27/086—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block component parts, details, e.g. valves, sealings, lubrication swash plate
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
The application discloses a swash plate device of a variable displacement compressor, which comprises a turntable, an angle adjusting disc, a connecting block, a swash plate and a rotating shaft, wherein the turntable is arranged on the turntable; the rotating shaft sequentially passes through the rotating disc, the angle adjusting disc and the sloping cam plate; one end of the connecting block is connected with the rotary table, and the other end is connected with the angle adjusting disc. The angle adjusting device of the swash plate of the variable displacement compressor is bilaterally symmetrical, and the centroid of the angle adjusting device is close to the rotating shaft within the angle adjustable range, so that noise caused by dynamic unbalance is reduced.
Description
Technical Field
The application relates to the field of machinery, in particular to a swash plate device of a variable displacement compressor.
Background
The swash plate type variable displacement automobile air conditioner compressor can automatically adjust the displacement of the compressor according to the temperature in the automobile at any rotating speed of the automobile engine, and the efficiency and the comfort of the compressor are obviously better than those of the fixed displacement compressor, so that the swash plate type variable displacement compressor is increasingly adopted in the air conditioner system of the middle-high-grade car, and the noise vibration problem of the swash plate type side displacement compressor is more and more concerned. Analysis has shown that a mechanically convenient source of noise for compressors includes dynamic imbalance of the swash plate and frictional impact between the piston shoes.
Accordingly, there is a need for a swash plate device of a variable displacement compressor to alleviate the dynamic unbalance problem of a swash plate, thereby solving the noise problem.
Disclosure of Invention
Aiming at the defects in the prior art, the application provides a swash plate device of a variable displacement compressor, which can relieve the dynamic unbalance problem of a swash plate and solve the noise problem of an engine caused by the swash plate.
The technical scheme of the application is as follows: a swash plate device of a variable displacement compressor, characterized in that: comprises a rotary disc, an angle adjusting disc, a connecting block, a sloping cam plate and a rotating shaft.
The rotating shaft sequentially passes through the rotating disc, the angle adjusting disc and the sloping cam plate; one end of the connecting block is connected with the rotary table, and the other end is connected with the angle adjusting disc.
The turntable is fixed on the rotating shaft through a gasket and a nut. The gasket comprises a circular ring, and five blades are uniformly distributed around the circular ring; the center of the circular ring is provided with a stud with internal and external threads; the external thread of the stud is matched with the nut, and the internal thread is matched with the rotating shaft. The stud penetrates through the turntable and is screwed with the nut; the rotating shaft passes through the stud. The gasket and the nut fix the turntable on the rotating shaft and cannot move. The bottom of the turntable is provided with a limit groove corresponding to the gasket. And five blades of the gasket limit the looseness of the gasket.
The connecting block comprises a fixed seat and a fixed block, and the fixed seat is fan-shaped; the fixed block is rectangular; the fixed block is fixed on the fixed seat.
The fixing seat is provided with a through hole which is arc-shaped. The arc is the track that the angle adjusting disk was drawn on the fixed block when adjusting the angle. The through hole is internally provided with a bolt sliding along the through hole.
The angle adjusting disc is conical, and the conical angle is 150 degrees. The angle adjusting disc changes the traditional swash plate with different left and right masses and different structures, so that the mass center deviates from the central shaft, and dynamic unbalance with larger fluctuation is generated. When the sloping cam plate does not incline, the angle adjusting plate is bilaterally symmetrical; at a tilt angle of 30 for the swash plate, the center of mass of the angle adjustment plate is also closer to the axis of rotation. Noise generated by dynamic unbalance is effectively reduced.
So that the angle of the angle adjusting disk can be changed within the range of 0-30 degrees. The section of the angle adjusting disc is a circular ring, and an opening matched with the fixed block is arranged on the section along the radial direction. The fixed block is inserted into the opening to complete the connection of the connecting block and the angle adjusting disc. At the edge opposite to the opening, a convex strip along the conical generatrix is arranged. The convex strip is used for connecting the angle adjusting disc and the sloping cam plate.
The center of the angle adjusting disc is provided with two opposite arched fixing plates, and the side edges of the fixing plates are provided with rotating holes; a rotating sheet is arranged between the two fixed sheets, convex columns are arranged at two ends of the rotating sheet, and the convex columns are inserted into the rotating holes to rotate; the rotating shaft penetrates through the moving plate to be fixed with the moving plate;
when the angle of the angle adjusting disc is changed, the position of the rotating shaft is kept vertical, the convex column of the rotating piece rotates in the rotating hole, and the angle change of the angle adjusting disc is realized. The sloping cam plate is provided with a strip-shaped clamping groove which is matched with the convex strip.
Furthermore, a spring is sleeved on the rotating shaft below the sloping cam plate, and the lower end of the spring is fixed on the rotating shaft. The spring is arranged, and when the inclined plate is required to change the angle inclination angle along with the up-and-down swing of the angle adjusting plate, the spring plays a role in buffering; meanwhile, the spring also plays a limiting role to prevent the swash plate from falling from the rotating shaft.
Further, a second spring is arranged between the side of the angle adjusting disc provided with the opening and the sloping cam plate. Along with the stretching or compressing of the spring, the angle adjusting disc is subjected to tensile force or supporting force, so that the angle adjusting disc is stably arranged between the connecting block and the sloping cam plate.
Further, the thickness of the limit groove is smaller than that of the gasket. The gasket is embedded in the limiting groove, and because the thickness of the gasket is thick, the gasket is higher than the bottom surface of the turntable, and the blade of the gasket can just fix the fixing seat of the connecting block therein. The design is ingenious.
Furthermore, the opening is fixedly connected with the bolt through a bolt; and a wear-resistant layer is arranged in the through hole. The wear-resistant layer effectively prevents the bolt from wearing when sliding in the through hole.
More particularly, the center of the swash plate is provided with a round hole through which the rotating shaft passes, and the inner periphery of the round hole is provided with a circle of asbestos layer. Because the inclination angle of the swash plate needs to be changed, the relative position of the rotating shaft in the round hole can be changed. Asbestos fiber is elastic, and asbestos has acid, alkali and heat resistance, and is also a poor conductor of heat and electricity. The asbestos layer also reduces frictional noise between the shaft and the swash plate.
The beneficial effects are that: the angle adjusting device of the swash plate of the variable displacement compressor is bilaterally symmetrical, and the centroid of the angle adjusting device is close to the rotating shaft within the angle adjustable range, so that noise caused by dynamic unbalance is reduced.
Description of the drawings:
fig. 1 is a schematic view showing a structure of a swash plate device of a variable displacement compressor according to the present application;
FIG. 2 is a schematic diagram of a turntable according to the present application;
FIG. 3 is a schematic view of the gasket of the present application;
FIG. 4 is a schematic view of the structure of the connecting block of the present application;
FIG. 5 is a schematic view of the structure of the angle adjusting plate of the present application;
fig. 6 is a schematic view of the structure of the swash plate of the present application.
Detailed Description
The present application is further illustrated in the accompanying drawings and detailed description which are to be understood as being merely illustrative of the application and not limiting of its scope, and various modifications of the application, which are equivalent to those skilled in the art upon reading the application, will fall within the scope of the application as defined in the appended claims.
As shown in fig. 1 to 6, a swash plate device of a variable displacement compressor according to the present application is characterized in that: comprises a rotary disc 1, an angle adjusting disc 2, a connecting block 3, a sloping cam plate 4 and a rotating shaft 5.
The rotating shaft 5 sequentially penetrates through the rotary disc 1, the angle adjusting disc 2 and the swash plate 4; one end of the connecting block 3 is connected with the rotary table 3, and the other end is connected with the angle adjusting disc 2.
The turntable 1 is fixed on the rotating shaft 5 through a gasket 6 and a nut 7. The gasket 6 comprises a circular ring 61, and five blades 62 are uniformly distributed around the circular ring 61; a stud 63 with internal and external threads is arranged in the center of the circular ring 61; the external thread of the stud 63 is matched with the nut 7, and the internal thread is matched with the rotating shaft 5. The stud 63 passes through the turntable 1 and is screwed with the nut 7; the spindle 5 passes through the stud 63. The gasket 6 and the nut 7 fix the turntable 1 on the rotating shaft 5 and cannot move. The bottom of the turntable 1 is provided with a limit groove 11 corresponding to the gasket 6. While the five blades of the shim 6 limit the looseness of the shim 6.
The connecting block 3 comprises a fixed seat 31 and a fixed block 32, and the fixed seat 31 is in a fan shape; the fixed block 32 is rectangular; the fixed block 32 is fixed to the fixed block 31.
The fixing seat 31 is provided with a through hole, and the through hole is arc-shaped. The arc is the track that is drawn on the fixed block 32 when the angle adjusting disc 2 adjusts the angle. A bolt 33 sliding along the through hole is arranged in the through hole.
The angle adjusting disc 2 is conical, and the conical angle is 150 degrees. So that the angle of the angle adjusting plate 2 can be changed in the range of 0-30 degrees. The angle adjusting disc 2 changes the traditional swashplate with different left and right masses and different structures, so that the mass center deviates from the central shaft, and dynamic unbalance with larger fluctuation is generated. When the swash plate is not inclined, the angle adjusting plate 2 is bilaterally symmetrical; at a tilt angle of 30 of the swash plate, the centroid of the angle adjusting plate 2 is also closer to the rotation axis. Noise generated by dynamic unbalance is effectively reduced. The angle-adjusting disk 2 has a circular cross section, which is provided with an opening 23 in the radial direction, which is adapted to the fixing block 32. The fixing block 32 is inserted into the opening 23 to complete the connection of the connection block 3 with the angle adjusting plate 2. At the edge opposite to the opening 23, a rib 24 along the conical generatrix is provided. The protruding strip 24 is used to connect the angle adjusting plate 2 and the swash plate 4.
The center of the angle adjusting disc 2 is provided with two opposite arched fixing pieces 21, and the side edges of the fixing pieces 21 are provided with rotating holes; a rotating piece 22 is arranged between the two fixed pieces 21, two ends of the rotating piece 22 are provided with convex columns, and the convex columns are inserted into the rotating holes to rotate; the rotating shaft 5 passes through the moving plate 22 to be fixed with the same; when the angle adjusting plate 2 changes the angle, the position of the rotating shaft 5 is kept vertical unchanged, and the convex column of the rotating plate 22 rotates in the rotating hole, so that the angle change of the angle adjusting plate is realized. The swash plate 4 is provided with a strip-shaped clamping groove 41, and the clamping groove 41 is matched with the raised strip 24.
Further, a spring is sleeved on the rotating shaft 5 below the swash plate 4, and the lower end of the spring is fixed on the rotating shaft 5. The spring is arranged, and the spring plays a role in buffering when the inclined angle of the inclined disc 4 is required to be changed along with the up-and-down swinging of the angle adjusting disc 2; meanwhile, the spring also plays a limiting role to prevent the swash plate 4 from falling from the rotating shaft 5.
Further, a second spring is arranged between the side of the angle adjusting disc 2 provided with the opening and the sloping cam plate. With the stretching or compressing of the spring, the angle adjusting disc 2 is subjected to a tensile force or a supporting force, so that the angle adjusting disc 2 is stably arranged between the connecting block 3 and the swash plate 4.
Further, the thickness of the limit groove 11 is smaller than that of the gasket 6. The gasket 6 is embedded in the limit groove 11, and the thickness of the gasket 6 is thick, so the gasket 6 is higher than the bottom surface of the turntable 1, and the blades 62 of the gasket 6 can just fix the fixing seat 31 of the connecting block 3 therein. The design is ingenious.
Further, the opening is fixedly connected with the bolt through a bolt; and a wear-resistant layer is arranged in the through hole. The wear-resistant layer effectively prevents the pin from wearing when sliding in the through hole.
Further, a round hole 42 through which the rotating shaft 5 passes is formed in the center of the swash plate 4, and a circle of asbestos layer 43 is formed in the inner periphery of the round hole 42. Because the swash plate 4 needs to change its inclination angle, the relative position of the rotary shaft 5 within the circular hole 42 is changed. Asbestos fiber is elastic, and asbestos has acid, alkali and heat resistance, and is also a poor conductor of heat and electricity. The asbestos layer also reduces frictional noise between the shaft 5 and the swash plate 4.
The specific implementation process is as follows: the angle of the swash plate 4 is changed under the action of the electromagnetic valve, the swash plate 4 acts on the swash plate 4, the angle adjusting disc 2 is pushed by the swash plate 4, when the angle adjusting disc 2 needs to be at an angle, the position of the rotating shaft 5 is kept vertical unchanged, and the convex column of the rotating plate 22 rotates in the rotating hole; correspondingly, the bolt 33 slides in the through hole of the fixing seat, and the angle adjustment is completed. .
Claims (6)
1. A swash plate device of a variable displacement compressor, characterized in that: comprises a rotary table (1), an angle adjusting disc (2), a connecting block (3), a swash plate (4) and a rotary shaft (5);
the rotating shaft (5) sequentially penetrates through the rotary disc (1), the angle adjusting disc (2) and the sloping cam plate (4); one end of the connecting block (3) is connected with the rotary table (1), and the other end is connected with the angle adjusting disc (2);
the turntable (1) is fixed on the rotating shaft (5) through a gasket (6) and a nut (7); the gasket (6) comprises a circular ring (61), and five blades (62) are uniformly distributed around the circular ring (61); a stud (63) with internal and external threads is arranged in the center of the circular ring (61); the external thread of the stud (63) is matched with the nut (7), and the internal thread is matched with the rotating shaft (5); a limit groove (11) corresponding to the gasket (6) is formed in the bottom of the rotary table (1); the connecting block (3) comprises a fixed seat (31) and a fixed block (32), and the fixed seat (31) is fan-shaped; the fixed block (32) is rectangular; the fixed block (32) is fixed on the fixed seat (31); the fixing seat (31) is provided with a through hole which is arc-shaped, and a bolt (33) sliding along the through hole is arranged in the through hole; the angle adjusting disc (2) is conical, and the conical angle is 150 degrees; the section of the angle adjusting disc (2) is a circular ring, and an opening (23) matched with the fixed block (32) is arranged on the section along the radial direction; at the edge opposite to the opening (23), a convex strip (24) along the conical generatrix is arranged;
the center of the angle adjusting disc (2) is provided with two opposite arched fixing pieces (21), and the side edges of the fixing pieces (21) are provided with rotating holes; a rotating piece (22) is arranged between the two fixed pieces (21), convex columns are arranged at two ends of the rotating piece (22), and the convex columns are inserted into the rotating holes to rotate; the rotating shaft (5) passes through the rotating plate (22) to be fixed with the rotating plate; the swash plate (4) is provided with a strip-shaped clamping groove (41), and the clamping groove (41) is matched with the raised strip (24).
2. A swash plate device of a variable displacement compressor according to claim 1, wherein: a spring is sleeved on a rotating shaft (5) positioned below the swash plate (4), and the lower end of the spring is fixed on the rotating shaft (5).
3. A swash plate device of a variable displacement compressor according to claim 1, wherein: and a spring is arranged between one side of the angle adjusting disc (2) provided with the opening and the sloping cam plate.
4. A swash plate device of a variable displacement compressor according to claim 1, wherein: a limit groove (11) corresponding to the gasket (6) is formed in the bottom of the rotary table (1); the thickness of the limiting groove (11) is smaller than that of the gasket (6).
5. A swash plate device of a variable displacement compressor according to claim 1, wherein: the opening is fixedly connected with the bolt through a bolt; and a wear-resistant layer is arranged in the through hole.
6. A swash plate device of a variable displacement compressor according to claim 1, wherein: the center of the swash plate (4) is provided with a round hole (42) through which the rotating shaft (5) passes, and the inner periphery of the round hole (42) is provided with a circle of asbestos layer (43).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157409.2A CN108425825B (en) | 2018-02-24 | 2018-02-24 | Swash plate device of variable displacement compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810157409.2A CN108425825B (en) | 2018-02-24 | 2018-02-24 | Swash plate device of variable displacement compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108425825A CN108425825A (en) | 2018-08-21 |
| CN108425825B true CN108425825B (en) | 2023-09-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810157409.2A Active CN108425825B (en) | 2018-02-24 | 2018-02-24 | Swash plate device of variable displacement compressor |
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| Country | Link |
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| CN (1) | CN108425825B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5836748A (en) * | 1994-07-13 | 1998-11-17 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type variable displacement compressor utilizing a spool for controlling the inclination |
| CN2457365Y (en) * | 2000-12-26 | 2001-10-31 | 上海易初通用机器有限公司 | Plunger oblique disc type compressor |
| CN101403375A (en) * | 2007-10-03 | 2009-04-08 | 株式会社丰田自动织机 | Capacity-variable type swash plate compressor |
| CN101469688A (en) * | 2007-12-26 | 2009-07-01 | 上海三电贝洱汽车空调有限公司 | Variable displacement rotary oblique disc type compressor |
| CN101520033A (en) * | 2008-02-26 | 2009-09-02 | 康奈可关精株式会社 | Tilting plate type compressor |
| KR20090118513A (en) * | 2008-05-14 | 2009-11-18 | 학교법인 두원학원 | Swash pate type compressor |
| CN101769244A (en) * | 2008-12-29 | 2010-07-07 | 上海三电贝洱汽车空调有限公司 | Movement mechanism of variable-displacement compressor |
| KR20140074591A (en) * | 2012-12-10 | 2014-06-18 | 현대자동차주식회사 | Angle adjustment device for swash plate type compressor |
| CN205401049U (en) * | 2016-03-29 | 2016-07-27 | 浙江三田汽车空调压缩机有限公司 | Become discharge capacity compressor main shaft sloping cam plate |
| CN206000703U (en) * | 2016-08-19 | 2017-03-08 | 上海易通汽车配件有限公司 | Compressor |
-
2018
- 2018-02-24 CN CN201810157409.2A patent/CN108425825B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5836748A (en) * | 1994-07-13 | 1998-11-17 | Kabushiki Kaisha Toyoda Jidoshokki Seisakusho | Swash plate type variable displacement compressor utilizing a spool for controlling the inclination |
| CN2457365Y (en) * | 2000-12-26 | 2001-10-31 | 上海易初通用机器有限公司 | Plunger oblique disc type compressor |
| CN101403375A (en) * | 2007-10-03 | 2009-04-08 | 株式会社丰田自动织机 | Capacity-variable type swash plate compressor |
| CN101469688A (en) * | 2007-12-26 | 2009-07-01 | 上海三电贝洱汽车空调有限公司 | Variable displacement rotary oblique disc type compressor |
| CN101520033A (en) * | 2008-02-26 | 2009-09-02 | 康奈可关精株式会社 | Tilting plate type compressor |
| KR20090118513A (en) * | 2008-05-14 | 2009-11-18 | 학교법인 두원학원 | Swash pate type compressor |
| CN101769244A (en) * | 2008-12-29 | 2010-07-07 | 上海三电贝洱汽车空调有限公司 | Movement mechanism of variable-displacement compressor |
| KR20140074591A (en) * | 2012-12-10 | 2014-06-18 | 현대자동차주식회사 | Angle adjustment device for swash plate type compressor |
| CN205401049U (en) * | 2016-03-29 | 2016-07-27 | 浙江三田汽车空调压缩机有限公司 | Become discharge capacity compressor main shaft sloping cam plate |
| CN206000703U (en) * | 2016-08-19 | 2017-03-08 | 上海易通汽车配件有限公司 | Compressor |
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| Publication number | Publication date |
|---|---|
| CN108425825A (en) | 2018-08-21 |
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