CN206299568U - Rotary compressor for refrigerant rolling piston - Google Patents
Rotary compressor for refrigerant rolling piston Download PDFInfo
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- CN206299568U CN206299568U CN201621342118.3U CN201621342118U CN206299568U CN 206299568 U CN206299568 U CN 206299568U CN 201621342118 U CN201621342118 U CN 201621342118U CN 206299568 U CN206299568 U CN 206299568U
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- outer ring
- inner ring
- end faces
- parallel end
- rolling piston
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Abstract
Rotary compressor for refrigerant rolling piston, including outer ring, inner ring, described outer ring is cylinder, its section is in E types, and side is the face of cylinder, and upper and lower two plane is parallel end faces, center section is supporting part, described inner ring is cylindrical tube, and described outer ring is connected on the external cylindrical surface of inner ring by three sides of E types, and the parallel end faces of inner ring are in same plane with the parallel end faces of outer ring.The utility model has the advantage of：Because the cross section of outer ring is E types, there is upper and lower parallel end faces enough width to ensure and the sealing area between the upper and lower bearing of compressor.Therefore, during long-term use, even if there is certain mobile dislocation between inner ring and outer ring, outer ring still is able to keep excellent sealing with upper bearing (metal) and lower lower bearing；Simultaneously because inner ring can give the face of cylinder of outer ring to support enough by reinforcement, therefore the external cylindrical surface of outer ring will not be produced deformation with the contact position of slide plate by hollow influence, slide plate remains linear contact lay with outer ring, form excellent sealing, it is ensured that whole rolling piston can for a long time meet use requirement.
Description
Technical field
The utility model is related to a kind of compressor part, more particularly to a kind of rolling piston of refrigeration compressor.
Background technology
Rotary compressor for refrigerant, also known as rolling rotor compressor, it is compressed using piston rotation to refrigerant, is thrown
Market many years are put, it is one of compressor the most frequently used at present.
Rolling piston is the strength member of rotary compressor for refrigerant, and in the cylinder of compressor, rolling piston is arranged on
The bias of compressor eccentric shaft is turned, and periphery and the slide plate under spring-force driven dual of rolling piston are in close contact, rolling piston
Two parallel end faces and upper bearing (metal) and lower axle bearing surface by compressor oil formation dynamic sealing, and thus divide the cylinder into two it is close
Envelope room, and with rolling piston rotation and its volume and pressure constantly change, it is therefore necessary between this two closed chambers
Completely isolated and sealing, otherwise, can influence the compression effectiveness of discharge chambe, so that the refrigerating efficiency of refrigeration compressor is influenceed, or even
Refrigeration compressor is set to freeze.Because recent rotary compressor is using novel environment friendly refrigerant and to rotary compressor section
The requirements at the higher level that can, efficiently propose, the use environment of rolling piston is more harsh, therefore, rolling piston need to meet preferably resistance to
The requirement such as mill, pressure-bearing, sealing.
For a long time, rolling piston is solid, and weight is big, it is necessary to spend more energy, therefore many producers are from subtracting
The weight of few rolling piston sets about having carried out a large amount of research and development of hollow piston.
Because hollow piston is related to material, structure, manufacture, sealing, abrasion etc. to be permitted many problems, seem simple, but
Comply fully with the use requirement under harsh environment, then it is very difficult.The applicant have developed and such as adopt by numerous studies
Connected by support ring or resin with Internal and external cycle and/or the rolling piston of support, hollow body docking etc. comprising hollow cylinder, its
Though weight can be mitigated, reducing energy consumption, these structures there is a problem of different during long-term use and can not meet makes
With requiring, and rolling piston is the core component of refrigeration compressor, it is necessary to assure its can long-term use it is qualified, it is therefore desirable to find
The hollow piston of more preferable structure.
The content of the invention
Technical problem to be solved in the utility model is to overcome the above-mentioned not enough of prior art and provide a kind of compressor
With rolling piston, use requirement can be preferably met.
The utility model solve the technical scheme that is used of above-mentioned technical problem for：
Rotary compressor for refrigerant rolling piston, including outer ring, inner ring, described outer ring are cylinder, and its section is in E
Type, side is the face of cylinder, and upper and lower two plane is parallel end faces, and center section is supporting part, and described inner ring is cylindrical tube,
Described outer ring is connected on the external cylindrical surface of inner ring by three sides of E types, the parallel end faces of inner ring and the parallel end faces of outer ring
In same plane.
Preferably, above-mentioned outer ring is connected in interference hot pressing form with reinforcement by the parallel end faces of E types with inner ring.
Preferably, above-mentioned outer ring is welded on the external cylindrical surface of inner ring by the parallel end faces of E types, by welding, connection
More firm and sealing.
Preferably, above-mentioned reinforcement is closely connected with inner ring, for outer ring provides enough supports.
Preferably, parallel end faces of the parallel end faces of above-mentioned inner ring less than outer ring.It can make inner ring not with upper bearing (metal) and
Lower bearing produces friction.Meanwhile, piston during long-term use, between outer ring and inner ring it may happen that relative movement and
Inner ring is pressed upper bearing (metal) or lower bearing, increase frictional force, the generation of this phenomenon is prevented from by such structure.
Compared with prior art, the utility model has the advantage of：Because the cross section of outer ring is E types, the parallel end in outer ring
Sealing area is big between face and upper and lower bearing, therefore, even if having certain during long-term use, between inner ring and outer ring
Mobile, outer ring still is able to sealing very well with upper bearing (metal) and lower bearing；Simultaneously because the reinforcement in the middle of outer ring can be by inner ring branch
Support, therefore the external cylindrical surface of outer ring will not be produced deformation with the contact position of slide plate by hollow influence, contact of the slide plate with outer ring
Face remains excellent sealing, it is ensured that whole rolling piston can for a long time meet use requirement.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model embodiment rolling piston.
Fig. 2 is the structural representation of another embodiment rolling piston of the utility model.
Specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
Embodiment 1
As shown in figure 1, rotary compressor for refrigerant rolling piston, including outer ring 1, inner ring 2.
Above-mentioned outer ring 1 is cylinder, and its section is in E types, the equal length of three side 11,12,13 of E types.14th, 15 is parallel end
Face, 12 is supporting part.
Above-mentioned inner ring 2 is cylindrical tube, and it has external cylindrical surface 21.
Above-mentioned outer ring 1 is fixed on the external cylindrical surface 21 of inner ring by three sides 11,12,13 of E types.
By being welded together between side and the external cylindrical surface 21 of inner ring 2 where two side of above-mentioned outermost 11,13.
Due to the parallel end faces 14,15 and upper and lower bearing of outer ring 1（It is not drawn into figure）Seal against each other, therefore piston is outer
The sealing area of circle is very big, can well seal the discharge chambe of refrigeration compressor.
Embodiment 2
As shown in Fig. 2 rotary compressor for refrigerant rolling piston, including outer ring 1, inner ring 2.
Above-mentioned outer ring 1 is cylinder, and its section is in E types, the equal length of three side 11,12,13 of E types.14th, 15 is parallel end
Face, 12 is reinforcement.
Above-mentioned inner ring 2 is cylindrical tube, and it has external cylindrical surface 21.
Above-mentioned outer ring 1 is fixed on the external cylindrical surface 21 of inner ring by three sides 11,12,13 of E types.
By being welded together between side and the external cylindrical surface 21 of inner ring 2 where two side of above-mentioned outermost 11,13.
Due to the parallel end faces 14,15 and upper and lower bearing of outer ring 1（It is not drawn into figure）Seal against each other, therefore piston is outer
The sealing area of circle is very big, can well seal the discharge chambe of refrigeration compressor.
The two side faces 22,23 of above-mentioned inner ring 2 are retracted than the outermost two side faces 15,14 of outer ring 1.So, two sides of inner ring 2
Face 22, friction will not be produced between 23 and upper bearing (metal) and lower bearing, therefore, it is possible to reduce frictional force.
Although there is a small amount of relative movement due to factors such as long-term uses in outer ring 1, with inner ring 2 due to the two of inner ring 2
Side 22,23 is retracted relative to outer ring parallel end faces 15,14, therefore, the two side faces 22,23 of inner ring 2 will not still press upper bearing (metal)
Or lower bearing, therefore will not also increase the frictional force between inner ring 2 and upper bearing (metal) or lower bearing.
Claims (4)
1. rotary compressor for refrigerant rolling piston, it is characterised in that：Including outer ring, inner ring, described outer ring is cylinder,
Its section is in E types, and side is the face of cylinder, and upper and lower two plane is parallel end faces, and center section is supporting part, and described inner ring is
Cylindrical tube, described outer ring is connected on the external cylindrical surface of inner ring by three sides of E types, parallel end faces and the outer ring of inner ring
Parallel end faces are in same plane.
2. rotary compressor for refrigerant rolling piston as claimed in claim 1, it is characterised in that：The outer ring passes through E types
Parallel end faces be connected with inner ring in interference hot pressing form with supporting part.
3. rotary compressor for refrigerant rolling piston as claimed in claim 1, it is characterised in that：The outer ring passes through E types
Parallel end faces be welded on the external cylindrical surface of inner ring.
4. the rotary compressor for refrigerant rolling piston as described in claim 1 or 2 or 3, it is characterised in that：The inner ring
Parallel end faces are less than the parallel end faces of outer ring with the parallel end faces of outer ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342118.3U CN206299568U (en) | 2016-12-08 | 2016-12-08 | Rotary compressor for refrigerant rolling piston |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342118.3U CN206299568U (en) | 2016-12-08 | 2016-12-08 | Rotary compressor for refrigerant rolling piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206299568U true CN206299568U (en) | 2017-07-04 |
Family
ID=59213151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621342118.3U Active CN206299568U (en) | 2016-12-08 | 2016-12-08 | Rotary compressor for refrigerant rolling piston |
Country Status (1)
| Country | Link |
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| CN (1) | CN206299568U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523371A (en) * | 2016-12-08 | 2017-03-22 | 宁波甬微集团有限公司 | Rolling piston for rotary refrigerating compressor |
| CN108843576A (en) * | 2018-06-19 | 2018-11-20 | 广东美芝制冷设备有限公司 | Piston, compressor and refrigeration equipment |
-
2016
- 2016-12-08 CN CN201621342118.3U patent/CN206299568U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106523371A (en) * | 2016-12-08 | 2017-03-22 | 宁波甬微集团有限公司 | Rolling piston for rotary refrigerating compressor |
| CN108843576A (en) * | 2018-06-19 | 2018-11-20 | 广东美芝制冷设备有限公司 | Piston, compressor and refrigeration equipment |
| CN108843576B (en) * | 2018-06-19 | 2019-11-15 | 广东威灵汽车部件有限公司 | Piston, compressor and refrigeration equipment |
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