CN202708048U - Piston rod - Google Patents
Piston rod Download PDFInfo
- Publication number
- CN202708048U CN202708048U CN 201220430741 CN201220430741U CN202708048U CN 202708048 U CN202708048 U CN 202708048U CN 201220430741 CN201220430741 CN 201220430741 CN 201220430741 U CN201220430741 U CN 201220430741U CN 202708048 U CN202708048 U CN 202708048U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- round steel
- layer
- shaft
- entrucking
- 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 rod, which comprises a loading end, a rod body and a working end. One end of the rod body is connected with the loading end, and the other end of the rod body is connected with the working end. The rod body is sequentially provided with cold-drawn round steel, a high-frequency quenched layer and a chromium plated layer from an innermost layer to an outermost layer. The loading end is provided with innermost-layer cold-drawn round steel and a zinc plated layer outside the cold-drawn round steel, is provided with a thread, and is axially provided with a platform. The piston rod can be used conveniently and flexibly, and is fatigue resistant, long in service life and high in comprehensive performance.
Description
Technical field
The utility model relates to the axle technical field, specifically relates to a kind of piston rod.
Background technique
The endurance life of piston rod is the emphasis of its research always, and the fatigue strength of piston rod directly has influence on the working life of piston rod.Its fatigue strength of existing piston rod is still waiting to improve, and the usage mode of piston rod is also relatively dull in addition.
The model utility content
The technical problem that (one) will solve
For the deficiency that prior art exists, the utility model provides comparatively flexibly piston rod of the higher use of a kind of intensity.
(2) technological scheme
For achieving the above object, the utility model provides a kind of piston rod, comprises entrucking end, shaft and working end; One termination entrucking end of described shaft, another termination working end of described shaft, the long 300CM of described shaft, described shaft is cold-drawn round steel near the innermost layer that is configured to of the 200CM at described entrucking end place, and is the high frequency hardening layer secondly, outermost surface is chromium coating.The innermost layer that is configured to of described entrucking end is cold-drawn round steel, is zinc coat secondly, and described entrucking end car has screw thread, and described entrucking end axially has a platform.This structure of wherein said shaft can improve the fatigue strength of shaft, thereby improves the working life of shaft.Carry out this structure processing in order to save a cost 200CM at the close described entrucking end place of described shaft.The zinc coat of entrucking end can play electrochemical action on the one hand, prevents the oxidation of getting rusty of whole piston rod, and this zinc coat material is soft than cold-drawn round steel on the other hand, can prevent from scratching when assembling, can also play the effect of oiling agent.Described entrucking end axially has the easy installation that a platform can be used for piston rod, is applicable to the occasion that piston rod need to often move.
(3) beneficial effect
Piston rod easy to use and flexible of the present utility model, endurance, high life, good combination property.
Description of drawings
Fig. 1 is the plan view of piston rod of the present utility model;
Fig. 2 is the left view of piston rod of the present utility model.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
The structure of piston rod of the present utility model comprises entrucking end 1, shaft 2 and working end 3 as shown in Figure 1 and Figure 2; One termination entrucking end 1 of described shaft 2, another termination working end 3 of described shaft 2, described shaft 2 long 300CM, described shaft 2 is cold-drawn round steel near the innermost layer that is configured to of the 200CM at described entrucking end 2 places, secondly be the high frequency hardening layer, outermost surface is chromium coating.The innermost layer that is configured to of described entrucking end is cold-drawn round steel, is zinc coat secondly, and described entrucking end 1 car has screw thread, and described entrucking end 1 axially has a platform 4.This structure of wherein said shaft 2 can improve the fatigue strength of shaft, thereby improves the working life of shaft 2.The zinc coat of entrucking end 1 can play electrochemical action on the one hand, prevents the oxidation of getting rusty of whole piston rod, and this zinc coat material is soft than cold-drawn round steel on the other hand, can prevent from scratching when assembling, can also play the effect of oiling agent.Described entrucking end 1 axially has the easy installation that a platform 4 can be used for piston rod, is applicable to the occasion that piston rod need to often move.
The beneficial effects of the utility model: easy to use and flexible, endurance, high life, good combination property.
The above only is preferred implementation of the present utility model; should be understood that; for those skilled in the art; under the prerequisite that does not break away from the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (1)
1. a piston rod is characterized in that, comprises entrucking end (1), shaft (2) and working end (3); One termination entrucking end (1) of described shaft (2), another termination working end (3); The long 300CM of described shaft (2); The 200CM place that described shaft (2) is located near described entrucking end (1) comprises cold-drawn round steel layer, high frequency hardening layer and chromium coating from inside to outside; Described entrucking end (1) comprises cold-drawn round steel layer and zinc coat from inside to outside; Described entrucking end (1) car has screw thread, and described entrucking end (1) axially has a platform (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430741 CN202708048U (en) | 2012-08-28 | 2012-08-28 | Piston rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220430741 CN202708048U (en) | 2012-08-28 | 2012-08-28 | Piston rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202708048U true CN202708048U (en) | 2013-01-30 |
Family
ID=47588354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220430741 Expired - Fee Related CN202708048U (en) | 2012-08-28 | 2012-08-28 | Piston rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202708048U (en) |
-
2012
- 2012-08-28 CN CN 201220430741 patent/CN202708048U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20130828 |