CN201412299Y - Piston for natural gas compressor - Google Patents
Piston for natural gas compressor Download PDFInfo
- Publication number
- CN201412299Y CN201412299Y CN2009200810249U CN200920081024U CN201412299Y CN 201412299 Y CN201412299 Y CN 201412299Y CN 2009200810249 U CN2009200810249 U CN 2009200810249U CN 200920081024 U CN200920081024 U CN 200920081024U CN 201412299 Y CN201412299 Y CN 201412299Y
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- CN
- China
- Prior art keywords
- piston
- natural gas
- gas compressor
- utility
- model
- Prior art date
- 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.)
- Expired - Fee Related
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a piston for a natural gas compressor, which comprises a piston body and a piston rod. The piston body is connected with the piston rod through a piston nut. The piston ischaracterized in that the piston body is formed by combining and connecting a piston upper body and a piston lower body on the direction of the piston rod. Because the piston body adopts a separate structure, the utility model has the advantages of convenient production and installation, easy processing, quick speed, high speed, saved labor and effort, low processing cost and low rejection rate.
Description
Technical field
The utility model relates to a kind of piston, relates in particular to a kind of easy to process, natural gas compressor piston efficiently.
Background technique
Existing natural gas compressor piston, its piston body adopts one-time formed technique for integral casting processing, the defective of this structure is: in order to cast out the inner chamber of piston hollow, at first must cast out perforate at the piston body end face, so that exhaust when supporting loam core and cast, also to taking-up be smashed in the loam core after the casting from these holes, also to the hole of piston body end face be processed at last, block up with plug, not only manufacture difficulty is very big, and waste time and energy, be easy to generate various casting defects, the cost of production height.
Summary of the invention
The purpose of this utility model provides a kind of natural gas compressor piston with regard to being in order to solve above-mentioned purpose, and this piston is easy to process, quick, and processing cost is low.
In order to achieve the above object, the utility model has adopted following technological scheme:
The utility model comprises piston body and piston rod, and piston body is connected by piston unt with piston rod, and its innovation part is: described piston body is connected by the piston upper body of piston rod direction and piston lower body and forms.
During fabrication, elder generation casts respectively on piston upper body and piston lower body or machining goes out half inner chamber, then piston upper body and corresponding connection of piston lower body is promptly formed complete piston hollow cavity.Owing to when casting, need not lay the loam core, just need not cast out perforate at the piston body end face, be not easy to produce various casting defects; Be directly in its section processing, so processing also is very easy to when each half inner chamber on employing efficient body beyond the Great Wall of machining and the piston lower body.Especially be fit to large diameter aluminium piston.
As preferred structure of the present utility model, described piston upper body also has pin to be connected the location with the piston lower body, and this connection orientation type is simple, quick.
As further improvement of the utility model, the elastic force ring that is installed on the described piston body is the tin-phosphor bronze elastic force ring.The hardness of this elastic force ring is less than cylinder, can avoid resembling and eject damage cylinder or cylinder liner minute surface traditional steel elastic force ring.
Further, the supporting surface at described piston unt is provided with equal pressure pad; Further, the supporting surface at the step of described piston rod also is provided with equal pressure pad.All pressure pad adopts steel, can reduce specific pressure, prevents to become flexible.
The beneficial effects of the utility model are:
Because the utility model only needs to process half endoporus respectively on piston upper body and piston lower body adding man-hour, so processing is very easy to, speed is also very fast, produce, install all very convenient, save labor, processing cost is low, reject rate is low, when having solved former cast inblock in order to cast out the inner chamber of piston hollow, exhaust when supporting loam core and cast at first must cast out perforate, so that also will be smashed taking-up with the loam core from these holes after the casting at the piston body end face, also to the hole of piston body end face be processed at last, block up the cost of production height with plug, the problem that reject rate is high especially is fit to large diameter aluminium piston.
Description of drawings
Accompanying drawing is a sectional structure schematic representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is further described in detail:
As shown in drawings, the utility model comprises piston upper body 1, piston lower body 2 and piston rod 9, and piston upper body 1 and piston lower body 2 are arranged on the direction of piston rod 9, and piston upper body 1 is sold 3 in addition with piston lower body 2 and is connected the location; Piston upper body 1 and piston lower body 2 are fastenedly connected by piston unt 10 by piston rod 9.
As shown in drawings, the elastic force ring 5 that is installed on the piston body (comprising piston upper body 1 and piston lower body 2) is the tin-phosphor bronze elastic force ring, and 4 is piston ring among the figure.This elastic force ring hardness is less than cylinder, can avoid resembling and eject damage cylinder or cylinder liner minute surface traditional steel elastic force ring.
As shown in drawings, be provided with equal pressure pad 7 at the supporting surface of the step 8 of piston unt 10 and piston rod 9, all pressure pad 7 adopts steels, can reduce specific pressure, prevents to become flexible.
As shown in drawings, during fabrication, earlier on piston upper body 1 and piston lower body 2 respectively casting or machining go out half inner chamber, then with piston upper body 1, piston lower body 2 and sell and 3 corresponding connections promptly formed complete piston cavity 6.Because half inner chamber on piston upper body 1 and piston lower body 2 is open, cast or machining all is very easy to, be not easy to produce waste product, especially suitable large diameter aluminium piston.
Claims (5)
1, a kind of natural gas compressor piston comprises piston body and piston rod, and piston body is connected by piston unt with piston rod, it is characterized in that: described piston body is connected by the piston upper body of piston rod direction and piston lower body and forms.
2, natural gas compressor piston according to claim 1 is characterized in that: described piston upper body also has pin to be connected with the piston lower body.
3, natural gas compressor piston according to claim 1 is characterized in that: the elastic force ring that is installed on the described piston body is the tin-phosphor bronze elastic force ring.
4, natural gas compressor piston according to claim 1 is characterized in that: the supporting surface at described piston unt is provided with equal pressure pad.
5, natural gas compressor piston according to claim 1 is characterized in that: the supporting surface at the step of described piston rod is provided with equal pressure pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200810249U CN201412299Y (en) | 2009-05-20 | 2009-05-20 | Piston for natural gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200810249U CN201412299Y (en) | 2009-05-20 | 2009-05-20 | Piston for natural gas compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201412299Y true CN201412299Y (en) | 2010-02-24 |
Family
ID=41714183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200810249U Expired - Fee Related CN201412299Y (en) | 2009-05-20 | 2009-05-20 | Piston for natural gas compressor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201412299Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806477A (en) * | 2015-05-04 | 2015-07-29 | 无锡压缩机股份有限公司 | Cast aluminum piston structure for reciprocating compressor |
| CN107237736A (en) * | 2017-06-29 | 2017-10-10 | 江苏锡压石化装备有限公司 | A kind of vertical compressor for being applicable high temperature gas medium |
-
2009
- 2009-05-20 CN CN2009200810249U patent/CN201412299Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806477A (en) * | 2015-05-04 | 2015-07-29 | 无锡压缩机股份有限公司 | Cast aluminum piston structure for reciprocating compressor |
| CN107237736A (en) * | 2017-06-29 | 2017-10-10 | 江苏锡压石化装备有限公司 | A kind of vertical compressor for being applicable high temperature gas medium |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100224 Termination date: 20170520 |