CN2674204Y - Piston rod - Google Patents
Piston rod Download PDFInfo
- Publication number
- CN2674204Y CN2674204Y CN 200320128734 CN200320128734U CN2674204Y CN 2674204 Y CN2674204 Y CN 2674204Y CN 200320128734 CN200320128734 CN 200320128734 CN 200320128734 U CN200320128734 U CN 200320128734U CN 2674204 Y CN2674204 Y CN 2674204Y
- Authority
- CN
- China
- Prior art keywords
- piston rod
- rod
- piston
- screwless
- interfix
- 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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Images
Abstract
The utility model provides a piston rod for the compressor, comprising a piston rod body and a piston rod shoulder integrated with the rod body. The utility model is characterized in that the piston rod shoulder is provided with a screwless elastic slender rod, on which two interfix flanges and an end flange are provided. The two interfix flanges on the screwless elastic slender rod can accurately position the rod in the pressure body, making the setting of the piston dead centre clearance easy. When connected with the cross head, the extra-high pressure oil extends part of the screwless elastic slender rod, fastening the rod with the cross head together, and making the connection convenient, simple, and reliable; the phenomenon of rupture of the connecting part does not occur, increasing the service life of the piston rod.
Description
Technical field:
The utility model relates to a kind of piston rod, specifically a kind ofly is used for compressor is connected usefulness with crosshead piston rod.
Background technique:
Piston rod in compressor be more flimsy part, especially piston rod and crosshead connection part easily because of fracture destroys, be one of common major accident of reciprocating compressor.The tradition crosshead mostly is with the piston rod Placement and is threaded, several patterns such as flange is connected, coupling connection, the shortcoming that is threaded is that screw thread partly produces stress and concentrates, when installation and improper use or under alternate load, use for a long time, very easily produce fatigue crack, cause rod fracture; Other connects, and pattern has the complex structure heaviness, machining accuracy is difficult for guaranteeing, adjusts many disadvantages such as piston stop gap difficulty.
Summary of the invention:
At the deficiency that above-mentioned prior art exists, the purpose of this utility model provide a kind of rational in infrastructure, be convenient to the novel piston bar that is connected and is difficult for taking place rupturing with crosshead.
The purpose of this utility model is to realize like this, it comprise the piston rod shaft and with this shaft be the piston rod shoulder of one, it is characterized in that: be provided with the thin bar of no elastane thread at the piston rod shoulder, on this thin elastic rod, be provided with two interfix flanges and an end flange.By two interfix flanges bar can accurately be located in pressure body.The location of used thrust ring when end flange is convenient to be connected with crosshead.
The utility model has the advantages that two interfix flanges by being located on the thin bar of no elastane thread can accurately be located bar in pressure body, adjustment piston stop gap is become easily; When being connected, adopt super high pressure oil will not have the elastane thread thin rod part and divide stretching, bar and crosshead are tightened together, make to connect to become convenient and simple and reliable, the difficult attachment portion phenomenon of rupture that takes place, the working life of improving piston rod with crosshead.
Below in conjunction with accompanying drawing the utility model is done with explanation.
Description of drawings:
Accompanying drawing is the utility model structural representation.
Embodiment:
By accompanying drawing as can be known, this piston rod is by the piston rod shaft 6 that is made for one, piston rod shoulder 5 with do not have the thin bar 3 of elastane thread and constitute.Piston rod afterbody L section is the thin bar 3 of no elastane thread, have the three sections locating flange structures 1,2,4 that are processed on it, two interfix flanges 2,4 can accurately be located bar in pressure body, end locating flange 1 is used for the location of thrust ring (two halves snap ring).The geometrical shape of thin elastic rod part 3, bar footpath, length etc. are all calculated through the elastic deformation amount and the yield strength of accurately carrying out under the alternate load, guarantee to have enough safety coefficient.
Claims (1)
1, a kind of piston rod, it comprise the piston rod shaft and with this shaft be the piston rod shoulder of one, it is characterized in that: be provided with the thin bar of no elastane thread at the piston rod shoulder, on this thin elastic rod, be provided with two interfix flanges and an end flange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128734 CN2674204Y (en) | 2003-12-24 | 2003-12-24 | Piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320128734 CN2674204Y (en) | 2003-12-24 | 2003-12-24 | Piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674204Y true CN2674204Y (en) | 2005-01-26 |
Family
ID=34477153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320128734 Expired - Fee Related CN2674204Y (en) | 2003-12-24 | 2003-12-24 | Piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674204Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485339A (en) * | 2015-12-28 | 2016-04-13 | 苏州林信源自动化科技有限公司 | Piston rod |
| CN105673931A (en) * | 2016-04-06 | 2016-06-15 | 龙工（上海）精工液压有限公司 | Piston for avoiding clamping stagnation |
-
2003
- 2003-12-24 CN CN 200320128734 patent/CN2674204Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485339A (en) * | 2015-12-28 | 2016-04-13 | 苏州林信源自动化科技有限公司 | Piston rod |
| CN105673931A (en) * | 2016-04-06 | 2016-06-15 | 龙工（上海）精工液压有限公司 | Piston for avoiding clamping stagnation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |