CN203098202U - Combined-type piston of grade-difference-type compressor - Google Patents
Combined-type piston of grade-difference-type compressor Download PDFInfo
- Publication number
- CN203098202U CN203098202U CN 201320109906 CN201320109906U CN203098202U CN 203098202 U CN203098202 U CN 203098202U CN 201320109906 CN201320109906 CN 201320109906 CN 201320109906 U CN201320109906 U CN 201320109906U CN 203098202 U CN203098202 U CN 203098202U
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- piston
- high pressure
- pressure piston
- low pressure
- type
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Abstract
The utility model discloses a combined-type piston of a grade-difference-type compressor. The combined-type piston comprises a high pressure piston and a low pressure piston, the high pressure piston and the low pressure piston are integrated, a cavity is formed inside the high pressure piston, two axial ends of the cavity are respectively provided with a through hole, piston rods are installed in the through holes, each piston rod sequentially penetrates through a through hole of the low pressure piston, the cavity of the high pressure piston and a through hole of the high pressure piston, and each piston rod is locked and fixed through a nut on an outer end face of the high pressure piston. The combined-type piston thoroughly solves the problem that concentricity and verticality of an existing high pressure piston and an existing low pressure piston cannot be prone to guaranteeing; no gap exists due to the fact that the high pressure piston and the low pressure piston are integrated, and piston deformation and piston breaking are avoided even though the piston performs high-speed reciprocating motion at the frequency of 740-980 times per minute; service life of the piston is prolonged, and whole operation reliability of a compressor is improved; and service life of a piston ring and a bearing ring is prolonged.
Description
Technical field
The utility model relates to compressor field, the differential piston compressor built-up piston in specifically a kind of Reciprocting piston compressor.
Background technique
In Reciprocting piston compressor, piston is that moving element also is one of vital part.In the past in this type of plunger designs, be that the step piston of two splits is linked together with screw, can leave the gap between two pistons, the concentricity of high pressure piston and low pressure piston and perpendicularity are difficult for guaranteeing, in addition, the piston per minute will be done 980-740 to-and-fro motion, and bump back and forth can make the piston modification produce bigger gap, thereby screw extraction, piston disintegration occur; After long-time running, high pressure piston sinks because of wearing and tearing, and the weight of whole step piston can be supported by the small piston of high pressure stage, and high pressure stage cylinder and piston are are sharply worn and torn; Piston forms the eccentric wear phenomenon easily with cylinder under the effect of gravity, cause the not wear-resisting phenomenon of high pressure stage piston ring, supporting ring.
The model utility content
In order to overcome existing split type step piston existing the problems referred to above in design, the purpose of this utility model is to provide the differential piston compressor that a kind of operation is more reliable, the moving element longer service life is of a specified duration built-up piston.
The purpose of this utility model is achieved by the following technical programs, a kind of differential piston compressor built-up piston, comprise high pressure piston and low pressure piston, it is characterized in that, described high pressure piston and low pressure piston are an integral body, and high pressure piston inside is provided with cavity, and the through hole that piston rod is installed is offered at the axial two ends of cavity, piston rod passes the through hole of low pressure piston end, the cavity of high pressure piston and the through hole of high pressure piston end successively, and piston rod is fixed by the nut check of high pressure piston exterior edge face.
Further, the end that is locked of described piston rod is equipped with locking gasket.
Beneficial effect: ⑴ thoroughly solves existing high pressure piston and low pressure piston exists concentricity and perpendicularity to be difficult for the problem that guarantees; ⑵ high pressure piston and low pressure piston are that solid piston does not exist the gap, even piston is done the high speed to-and-fro motion of per minute 980-740 time, the phenomenon that piston modification or piston disintegrate also can not occur; ⑶ improve the working life of piston, improves the reliability of compressor overall operation; ⑷ improve piston ring and supporting ring working life.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Embodiment
As shown in Figure 1, a kind of differential piston compressor built-up piston provided by the utility model, comprise high pressure piston 1, low pressure piston 2 and piston rod 3, high pressure piston 1 and low pressure piston 2 designs are as a whole, piston be circumferentially with piston ring 4,8 and support ring 5,7, wherein, high pressure piston 1 inside is provided with cavity 6, cavity 6 axial two ends have the through hole that piston rod 3 is installed, piston rod 3 passes the through hole of low pressure piston end successively, the cavity 6 of high pressure piston and the through hole of high pressure piston end, piston rod 3 is locked by the nut 9 of high pressure piston 1 exterior edge face, and the end that is locked of piston rod 3 is equipped with locking gasket 10.
The foregoing description is as better embodiment of the present utility model; describe technical conceive of the present utility model and essential implementation in detail; be not to be that protection domain of the present utility model is limited; all any simple modification and equivalent structure transformation or modifications of being done according to the utility model spirit all should be encompassed within the protection domain of the present utility model.
Claims (2)
1. differential piston compressor built-up piston, comprise high pressure piston, low pressure piston and piston rod, it is characterized in that, described high pressure piston and low pressure piston are an integral body, wherein, high pressure piston inside is provided with cavity, and the through hole that piston rod is installed is offered at the axial two ends of cavity, piston rod passes the through hole of low pressure piston end, the cavity of high pressure piston and the through hole of high pressure piston end successively, and piston rod is fixed by the nut check of high pressure piston exterior edge face.
2. a kind of differential piston compressor built-up piston according to claim 1, the end that is locked of described piston rod is equipped with locking gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109906 CN203098202U (en) | 2013-03-12 | 2013-03-12 | Combined-type piston of grade-difference-type compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320109906 CN203098202U (en) | 2013-03-12 | 2013-03-12 | Combined-type piston of grade-difference-type compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203098202U true CN203098202U (en) | 2013-07-31 |
Family
ID=48849609
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320109906 Expired - Fee Related CN203098202U (en) | 2013-03-12 | 2013-03-12 | Combined-type piston of grade-difference-type compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203098202U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825469A (en) * | 2018-08-15 | 2018-11-16 | 安徽士必达液压器材有限公司 | A kind of super-pressure pump high-low pressure piston component |
-
2013
- 2013-03-12 CN CN 201320109906 patent/CN203098202U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108825469A (en) * | 2018-08-15 | 2018-11-16 | 安徽士必达液压器材有限公司 | A kind of super-pressure pump high-low pressure piston component |
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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: 20130731 Termination date: 20200312 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |