CN201802587U - Connecting device for swashplate compressor - Google Patents
Connecting device for swashplate compressor Download PDFInfo
- Publication number
- CN201802587U CN201802587U CN2010205585894U CN201020558589U CN201802587U CN 201802587 U CN201802587 U CN 201802587U CN 2010205585894 U CN2010205585894 U CN 2010205585894U CN 201020558589 U CN201020558589 U CN 201020558589U CN 201802587 U CN201802587 U CN 201802587U
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- swash plate
- plane
- piston
- swashplate
- crawler shoe
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Abstract
The utility model provides a connecting device for a swashplate compressor, comprising a swashplate, a slipper, a steel ball, and pistons, wherein the swashplate is inclinedly installed on a main shaft via an inner through hole, rotates with the main shaft, and swings to and fro, the internal of the cylinder body is circumferentially and uniformly provided with a plurality of piston cylinders with the main shaft as the circle center, the inner of each piston cylinder is provided with a piston, the steel ball is embedded in a half spherical surface groove of the piston and is connected with the piston, the slipper is a flat circle component, one end surface of the slipper is a spherical surface matched with the steel ball, the other end surface is a plane facing the swashplate, a plane footstep bearing is disposed between the plane of the slipper and the swashplate. The swashplate compressor is advantageous in that, the connecting mode of the swashplate and the slipper can improve bearing status of contacting surfaces of the slipper and the swashplate of the swashplate compressor, reduce wearing between the contact surfaces between the swashplate and the slipper, and improve motion performance between the slipper and the swashplate, further improving reliability and stability of the compressor.
Description
Technical field
The utility model relates to a kind of connection set of slant plate type compressor, particularly relates to the connection set between a kind of slant plate type compressor swash plate and the crawler shoe.
Background technique
Oblique tray type compressor has the rotation of the swash plate of dependence and pistons reciprocating, swash plate is rotated with turning axle, crawler shoe is arranged between the front end surface and rear end surface and piston of swash plate of rotation, so that make the rotating force of wobbler pass to piston by crawler shoe.Crawler shoe is generally made by iron and is carried out sliding contact with the swash plate of rotation, thereby wearing and tearing may appear in the sliding contact between crawler shoe and swash plate part, or bonding occurs between the swash plate of crawler shoe and rotation, and the motion of swash plate and crawler shoe is had some setbacks.
The DSK-32 type compressor arrangement that the swash plate of existing improved oblique tray type compressor and crawler shoe device are most as Japanese Jack Sai Er company produces, as shown in Figure 1, it is made up of crawler shoe 3 ', steel ball 2 ', swash plate 4 ', piston 1 ', cylinder body 6 ' and transmission shaft 5 '.Described transmission shaft 5 ' drives swash plate 4 ' rotation, and the swash plate 4 ' of rotation is reciprocating in the cylinder hole of cylinder body 6 ' by the mechanism urges piston 1 ' of crawler shoe 3 ' and steel ball 2 ' combination.This swash plate is upward adopting the method for spraying to be attached with the surface treatment of one deck molybdenum disulfide with the friction of reduction with crawler shoe, the sliding capability between raising swash plate and crawler shoe with two inclined-planes 7 ' that contact and 8 ' of crawler shoe.Adopting the shortcoming of spraying swash plate is that the surface quality and the adhesion strength of sprayfused coating are had relatively high expectations, and compressor long-time running or compressor load fluctuate, and sprayfused coating weares and teares easily, comes off when big, special in the oblique tray type compressor of discharge capacity about 400cc/rev, because working load is big, pressure between crawler shoe and swash plate is also big, the wearing and tearing of sprayfused coating are also faster more obvious, cause the raising of the operation troubles rate of compressor.
The model utility content
Technical problem to be solved in the utility model is to provide a kind of exercise performance good between swash plate and the crawler shoe that can guarantee at above-mentioned prior art present situation, can prevent contact position wearing and tearing between swash plate and the crawler shoe again, improve the connection set in the working life of compressor.
The utility model solves the problems of the technologies described above the technological scheme that is adopted: a kind of connection set of slant plate type compressor, comprise swash plate, crawler shoe, steel ball and piston, wherein said swash plate is installed on the main shaft and along with main axis rotation and swing back and forth by the through hole in it is oblique, described cylinder body is interior to be that the center of circle is evenly distributed with a plurality of piston cylinders along circumference with the main shaft, all has piston in each piston cylinder, described steel ball is embedded in the hemisphere face groove of piston and with piston and is connected, it is characterized in that: described crawler shoe is flat round shape parts, the sphere of one end for matching with described steel ball, the other end is the plane towards swash plate, has the plane thrust bearing between the plane of described crawler shoe and swash plate.
Preferably, the thrust plane of described plane thrust bearing contacts with crawler shoe, and its needle roller plane contacts with swash plate.
For the ease of mounting plane thrust bearing and fixed pan thrust bearing better, have a ring step surface vertical on the both sides of described swash plate respectively with plane, swash plate place and be positioned at these step surface both sides along the radially-arranged inclined-plane of swash plate and outside the inclined-plane, described plane thrust bearing is a circle shape part, and its inner ring is placed on the described step surface.
For the structure that makes compressor is more stable, has the edge that makes the plane thrust bearing does not exceed the swash plate edge in movement process deviation distance between the center of the step surface of described swash plate both sides and the center of swash plate respectively.
Compared with prior art, advantage of the present utility model is: the swash plate of oblique tray type compressor of the present utility model and the Placement of crawler shoe can be improved the crawler shoe of oblique tray type compressor and the force-bearing situation of swash plate surface of contact, the wearing and tearing between swash plate and the crawler shoe surface of contact have been reduced, and improve exercise performance between crawler shoe and swash plate, and then improve the reliability and stability of compressor.
Description of drawings
Fig. 1 is the structural representation of the connection set of slant plate type compressor swash plate and crawler shoe in the prior art.
Fig. 2 is the structural representation of the connection set of slant plate type compressor of the present utility model.
Fig. 3 is the structural representation of crawler shoe of the present utility model and steel ball.
Fig. 4 is the structural representation of plane thrust bearing of the present utility model.
Fig. 5 is the structural representation of swash plate of the present utility model.
Fig. 6 is the schematic representation of crawler shoe movement locus of the present utility model.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Slant plate type compressor connection set of the present utility model shown in Fig. 2-6, comprises the swash plate 5 that is connected on the main shaft 7, piston 1, steel ball 2, crawler shoe 3, plane thrust bearing 4 and cylinder body 6.
Be evenly distributed with a plurality of piston cylinders for the center of circle along circumference around main shaft 7 in the cylinder body 6, and all have piston 1 in each piston cylinder, steel ball 2 is embedded in the hemisphere face groove of inner chamber both sides of piston 1 and is connected with piston 1.Crawler shoe 3 is the parts of a flattened round, and an one end face is a sphere 31, matches with steel ball 2, and another end face is to match with the thrust plane 41 of plane thrust bearing 4 in plane 32, and this plane 32 is the working plane of crawler shoe 3.The through hole 54 of swash plate 5 by its center is fixed on the main shaft 7 and along with the rotation of main shaft 7 is also rotated simultaneously.The both sides of this swash plate 5 respectively have one with the vertical ring step surface 51 in plane, swash plate 5 place, the step surface 51 of these swash plate 5 both sides is parallel to each other, this step surface 51 make the bi-side of described swash plate 5 have respectively in swash plate 5 radially-arranged inclined-plane 52 and outside inclined-plane 53.Plane thrust bearing 4 is a circular ring part, one side ring shape surface is a needle roller face 43, the opposite side annular surface is thrust plane 41, its inner ring 42 is placed on the step surface 51 that swash plate 5 tilts and the needle roller face 43 of plane thrust bearing 4 is resisted against on the outer inclined-plane 53 of swash plate 5, and plane thrust bearing 4 can rolling flexibly on the inclined-plane 53 at this outside.On the bi-side of swash plate 5, respectively have a plane thrust bearing 4, and be placed in respectively on the step surface 51, the both sides of swash plate 5 respectively have a plurality of crawler shoes 3 that match with steel ball 2, and all match with the thrust plane 41 of plane thrust bearing 4 in the plane 32 of crawler shoe 3.
Crawler shoe 3 adopts the rigid material of silumin, and its sphere side adopts the method machine shaping of extruding, and surface roughness Ra is 0.8, and plane 32 sides adopt abrasive method processing, and surface roughness Ra is 0.4, and planeness is 0.01.
The thrusting plate of plane thrust bearing 4 adopts high-strength material SCM415, and needle roller adopts wear-resisting high hardness material GCr15, and retainer adopts the SPCC material, makes bearing have higher dynamic load Coa value and dead load Co value and impact resistance.The external diameter of plane thrust bearing 4 equals the external diameter of swash plate 5, and internal diameter equals the diameter of the step 51 of swash plate, thickness 3～5mm.
Swash plate 5 adopts the ductile iron antiwear material.Two outer inclined-planes 53 of swash plate 5 are supporting the needle roller plane 43 of thrust-bearing, and this inclined-plane 53 adopts the processing method processing of polishing, and surface roughness Ra is 0.4, and planeness is 0.01.Step cutting pattern face 51 between inside and outside inclined-plane is used for the inner ring 42 of supporting plane thrust bearing 4 bearings, the center 56 1 segment distance A of swash plate are departed from the central position 55 of this step cutting pattern face 51, and the step surface 51 of both sides departs from swash plate center 56 on two opposite directions respectively mutually, as shown in Figure 5.This distance A that departs from just in time makes when piston 1 the is in outer dead point outer ring 44 of the plane thrust bearing 4 of this side equal the radius of swash plate 5 cylindricals from the ultimate range of the alignment of shafts, be that described plane thrust bearing 4 rolls on swash plate 5 and during along with swash plate 5 swings, its edge is no more than the edge of swash plate 5, is positioned within the scope of swash plate 5 always.The structure that can guarantee compressor like this is more stable, in movement process, can not produce disengaging between swash plate 5, crawler shoe 3 and the plane thrust bearing 4.
When not inserting plane thrust bearing 4 between the crawler shoe 3 of oblique tray type compressor and swash plate 5, the movement locus of its crawler shoe 3 on the working surface of swash plate 5 is illustrated in figure 6 as an ellipse 57, and the center 56 of misalignment swash plate 5 that should ellipse 57 is apart from B.The motion V of crawler shoe 3 any point on these ellipse 57 tracks can be decomposed into the synthetic of two motions, one is the circular movement V1 around the elliptical orbit center, another is along the linear reciprocating motion V2 on the elliptical orbit radial direction, wherein the stroke of straight reciprocating motion V2 radially is very short, average linear velocity is also little, for general oblique tray type compressor, the average linear velocity V2 of linear reciprocating motion is no more than 1/10th of circular movement V1, therefore should be only the main cause that produces the wearing and tearing of surface of contact between swash plate 5 and the crawler shoe 3 around the circular movement V1 at elliptical orbit center.Connection set of the present utility model has inserted plane thrust bearing 4 between crawler shoe 3 and swash plate 5, this plane thrust bearing 4 promptly is with the two kind moved apart of crawler shoe 3 with respect to swash plate 5, the circular movement V1 of crawler shoe 3 relative swash plates 6 is transferred on the plane thrust bearing 4, plane thrust bearing 4 rotates on swash plate 5, only remaining crawler shoe 3 opposite planar thrust bearings 4 and swash plate 5 carry out linear reciprocating motion V2, therefore greatly reduce the relative velocity on crawler shoe 3 working planes, the wearing and tearing of crawler shoe working plane have been alleviated, improved the working life of crawler shoe 3, improved oblique tray type compressor because swash plate sprayfused coating wearing and tearing back crawler shoe is killed the problem on swash plate.Swash plate of the present utility model does not need spraying treatmen simultaneously, has reduced the technology cost.
Although more than described preferred embodiment of the present utility model in detail, should be expressly understood that for a person skilled in the art, the utility model can have various changes and variation.All any modifications of within spirit of the present utility model and principle, being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.
Claims (4)
1. the connection set of a slant plate type compressor, comprise swash plate (5), crawler shoe (3), steel ball (2) and piston (1), wherein said swash plate (5) is installed in that main shaft (7) is gone up and along with main shaft (7) rotates and swings back and forth by the through hole (54) in it is oblique, described cylinder body (6) is interior to be that the center of circle is evenly distributed with a plurality of piston cylinders along circumference with main shaft (7), all has piston (1) in each piston cylinder, described steel ball (2) is embedded in the hemisphere face groove of piston (1) and with piston (1) and is connected, it is characterized in that: described crawler shoe (3) is flat round shape parts, the sphere (31) of one end for matching with described steel ball (2), the other end is towards the plane of swash plate (5) (32), has plane thrust bearing (4) between the plane (32) of described crawler shoe (3) and swash plate (5).
2. the connection set of slant plate type compressor as claimed in claim 1, it is characterized in that: the thrust plane (41) of described plane thrust bearing (4) contacts with crawler shoe (3), and its needle roller plane (43) contacts with swash plate (5).
3. the connection set of slant plate type compressor as claimed in claim 2, it is characterized in that: have a ring step surface (51) vertical on the both sides of described swash plate (5) respectively with swash plate (5) plane, place and be positioned at this step surface (51) both sides along the radially-arranged inclined-plane of swash plate (5) (52) and outside inclined-plane (53), described plane thrust bearing (4) is a circle shape part, and its inner ring (42) is placed on the described step surface (51).
4. the connection set of slant plate type compressor as claimed in claim 3 is characterized in that: have the edge that makes plane thrust bearing (4) does not exceed swash plate (5) edge in movement process deviation distance respectively between the center (55) of the step surface (51) of described swash plate (5) both sides and the center (56) of swash plate (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205585894U CN201802587U (en) | 2010-10-09 | 2010-10-09 | Connecting device for swashplate compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205585894U CN201802587U (en) | 2010-10-09 | 2010-10-09 | Connecting device for swashplate compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201802587U true CN201802587U (en) | 2011-04-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205585894U Expired - Fee Related CN201802587U (en) | 2010-10-09 | 2010-10-09 | Connecting device for swashplate compressor |
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| Country | Link |
|---|---|
| CN (1) | CN201802587U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956692A (en) * | 2010-10-09 | 2011-01-26 | 宁波欣晖制冷设备有限公司 | Connection device of swash-plate compressor |
-
2010
- 2010-10-09 CN CN2010205585894U patent/CN201802587U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101956692A (en) * | 2010-10-09 | 2011-01-26 | 宁波欣晖制冷设备有限公司 | Connection device of swash-plate compressor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20141009 |
|
| EXPY | Termination of patent right or utility model |