CN202468972U - Piston anti-loosening structure with double-top-screw radial positioning function - Google Patents
Piston anti-loosening structure with double-top-screw radial positioning function Download PDFInfo
- Publication number
- CN202468972U CN202468972U CN2012200953314U CN201220095331U CN202468972U CN 202468972 U CN202468972 U CN 202468972U CN 2012200953314 U CN2012200953314 U CN 2012200953314U CN 201220095331 U CN201220095331 U CN 201220095331U CN 202468972 U CN202468972 U CN 202468972U
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- piston
- rod body
- loosening
- rod
- torque
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- Pistons, Piston Rings, And Cylinders (AREA)
Abstract
The utility model discloses a piston anti-loosening structure with double-top-screw radial positioning function and belongs to anti-loosening mechanisms for hydraulic cylinder machinery. The piston anti-loosening structure comprises a rod body and a piston, wherein the rod body is in threaded connection with the piston; and the rod body and the piston are fixed by using two fastening screws which are radially symmetrically arranged. When the piston is stressed by radial force in an ideal state, relative motion does not exist between the rod body and the piston; however, when the piston is stressed by asymmetrical lateral force or torque, and the asymmetrical lateral force or torque overcomes the force or torque acting on the piston, the piston has the tendency of rotating around the rod body, and due to the anti-loosening screws which are symmetrically arranged, the phenomenon that the threaded connection of the rod body and the piston is loosened or the rod body and the piston are stressed by non-uniform force due to the asymmetrical lateral force or torque so as to damage the thread is avoided. The utility model has the advantages that the piston anti-loosening structure is simple, safe, reliable and convenient to process and mount, and the requirements on the safety, reliability, stability and the like of the hydraulic cylinder under special working conditions can be met.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder and uses anti-loose structure, specifically is a kind of piston anti-loose structure that adopts the radial location of Double Tops silk, is mainly used in the loader oil hydraulic cylinder.
Technical background
At present, the locking form used of the supporting hydraulic cylinder piston of domestic loader does not have unified standard and regulation.Excellent, the bad direct liquid cylinder entity performance and the quality of influencing of proof measures.In order to improve oil hydraulic cylinder working life and performance, each oil hydraulic cylinder manufacturer has taked various forms of proof measures, with the inefficacy that the reduces screw thread influence to oil hydraulic cylinder Security and reliability.
Summary of the invention
The utility model provides a kind of piston anti-loose structure that adopts the radial location of Double Tops silk, can prevent between the body of rod and the piston thread failures such as thread looseness seepage that the circumferential rotation owing to piston causes effectively.
The utility model is realized with following technological scheme: the piston anti-loose structure of a kind of Double Tops silk radial location comprises the body of rod, piston; The body of rod and piston are through being threaded, and the body of rod and piston are fixed with the Cock screw of two radial symmetric settings.
Locking principle is: the time spent of doing that receives asymmetric lateral force or moment when piston; The trend that piston just has the distaff body to rotate; But under the effect of Cock screw, the body of rod rotates with piston, has dissolved the influence that asymmetric lateral force or moment are connected with piston thread the body of rod.Guaranteed the reliable connection between the piston and the body of rod.Owing to adopted the anti-loosening measure of piston of above-mentioned Double Tops silk radial location, with the influence of thoroughly having avoided asymmetric lateral force or moment to piston and body of rod joint screw thread.This anti-loosening measure has not only improved the working life of oil cylinder, but also has improved the quality of oil cylinder, for the setting of the proof measures of oil cylinder provides new method and theory.Security, the reliability of oil hydraulic cylinder have been improved in actual use greatly.
The beneficial effect of the utility model is: simple in structure, and processing, easy for installation, anti-loosening reliable for effect, adaptability is strong.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Fig. 1 is the utility model structural representation.
Among the figure: 1, the body of rod, 2, piston, 3, Cock screw.
Embodiment
As shown in Figure 1, the piston anti-loose structure of a kind of Double Tops silk radial location comprises the body of rod 1 and piston 2, and the body of rod 1 and piston 2 are through being threaded; On piston 2 circumference groove faces, radially have the tapped hole of two symmetries, under the state that the body of rod on the body of rod 11 and piston 2 are tightened, have the counterbore concentric with tapped hole, Cock screw 3 is tightened in the tapped hole, insert in the counterbore its end.
Claims (2)
1. the piston anti-loose structure of Double Tops silk radial location; Comprise the body of rod (1); Piston (2), the body of rod (1) and piston (2) is characterized in that through being threaded: the body of rod (1) is fixed with the Cock screw (3) that two radial symmetric are provided with piston (2).
2. the piston anti-loose structure of a kind of Double Tops silk according to claim 1 radial location; It is characterized in that: the tapped hole that on piston (2) circumference groove face, radially has two symmetries; Have the counterbore concentric under the state that the body of rod (1) and piston (2) are tightened on the body of rod (1) with tapped hole; Cock screw (3) is tightened in the tapped hole, and insert in the counterbore its end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200953314U CN202468972U (en) | 2012-03-14 | 2012-03-14 | Piston anti-loosening structure with double-top-screw radial positioning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200953314U CN202468972U (en) | 2012-03-14 | 2012-03-14 | Piston anti-loosening structure with double-top-screw radial positioning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468972U true CN202468972U (en) | 2012-10-03 |
Family
ID=46917131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200953314U Expired - Lifetime CN202468972U (en) | 2012-03-14 | 2012-03-14 | Piston anti-loosening structure with double-top-screw radial positioning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468972U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470474A (en) * | 2013-08-31 | 2013-12-25 | 蚌埠高科能源装备有限公司 | Novel small-diameter piston component structure |
-
2012
- 2012-03-14 CN CN2012200953314U patent/CN202468972U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103470474A (en) * | 2013-08-31 | 2013-12-25 | 蚌埠高科能源装备有限公司 | Novel small-diameter piston component structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20121003 |
|
| CX01 | Expiry of patent term |