CN204312454U - The fixed anti-loosening device of piston of easy care steel ball easy to process - Google Patents
The fixed anti-loosening device of piston of easy care steel ball easy to process Download PDFInfo
- Publication number
- CN204312454U CN204312454U CN201420704148.9U CN201420704148U CN204312454U CN 204312454 U CN204312454 U CN 204312454U CN 201420704148 U CN201420704148 U CN 201420704148U CN 204312454 U CN204312454 U CN 204312454U
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- China
- Prior art keywords
- piston
- arc groove
- steel ball
- easy
- tapped hole
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- Expired - Fee Related
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Abstract
The utility model discloses the fixed anti-loosening device of piston of a kind of easy care steel ball easy to process, and include piston rod and piston, this piston is fixedly arranged on piston rod, and the middle part outer wall of this piston rod is equipped with the first arc groove; The internal face of this piston is equipped with the second arc groove, this piston is provided with a tapped hole, the inner of this tapped hole is communicated with the second arc groove, this first arc groove and the second arc groove enclose and are configured to a holding cavity, some steel balls are provided with in this holding cavity, the size of this steel ball and the size of holding cavity suitable, a flush end Cock screw is fixed in tapped hole; By this, achieve the fixed installation of piston, not only effectively reduce conventional piston and assemble loaded down with trivial details problem, improve the reliability that piston is locking, and avoid the loss that oil hydraulic cylinder in use brings because piston comes off, improve oil hydraulic cylinder product reliability and Security; Enhance productivity simultaneously, reduce the cost of production of oil hydraulic cylinder, improve the market competitiveness.
Description
Technical field
The utility model relates to the locking art of piston, refers in particular to the fixed anti-loosening device of piston of a kind of easy care steel ball easy to process.
Background technique
At present, domestic oil hydraulic cylinder produces adopt in piston or nut internal surface machining screw more, outer surface auger shell pit, the fixing anti-loosing type structure embedded by Cock screw radial direction.In hydraulic cylinder works process, Cock screw keeps stress always and only by radial force, to play locking effect for screw thread very low, in the course of time Cock screw can be caused to exit thus lose the locking effect to piston, the phenomenon such as cause that hydraulic cylinder piston comes off, makes troubles and potential safety hazard to work.
Therefore, be badly in need of working out a kind of new technological scheme to solve the problem.
Model utility content
In view of this, the utility model is for the disappearance of prior art existence, its main purpose is to provide the fixed anti-loosening device of piston of a kind of easy care steel ball easy to process, which overcome piston in the past easily to unclamp and the shortcoming of maintenance difficult, improve the reliability that piston is locking, enhance productivity simultaneously, reduce the cost of production of oil hydraulic cylinder, improve the market competitiveness.
For achieving the above object, the utility model adopts following technological scheme:
The fixed anti-loosening device of piston of a kind of easy care steel ball easy to process, include piston rod and piston, this piston is fixedly arranged on piston rod, and the middle part outer wall of this piston rod is equipped with the first arc groove; The internal face of this piston is equipped with the second arc groove, this piston is provided with a tapped hole, the inner of this tapped hole is communicated with the second arc groove, this first arc groove and the second arc groove enclose and are configured to a holding cavity, some steel balls are provided with in this holding cavity, the size of this steel ball and the size of holding cavity suitable, a flush end Cock screw is fixed in tapped hole.
As a kind of preferred version, described first arc groove is two that are arranged side by side, and this second arc groove is also two of being arranged side by side accordingly.
The utility model compared with prior art has obvious advantage and beneficial effect, specifically, as shown from the above technical solution,
By being provided with some steel balls in holding cavity, and coordinate flush end screw to be fixed in tapped hole to prevent steel ball from rolling out from tapped hole, thus limit the radial degrees of freedom of steel ball thus reach the object of the axial freedom of steel ball limited piston, thus realize the fixed installation of piston, not only effectively reduce conventional piston and assemble loaded down with trivial details problem, improve the reliability that piston is locking, and avoid the loss that oil hydraulic cylinder in use brings because piston comes off, improve oil hydraulic cylinder product reliability and Security; Enhance productivity simultaneously, reduce the cost of production of oil hydraulic cylinder, improve the market competitiveness; And the utility model structure is simple, easy to process, easy accessibility, anti-loosing effect be good, be easy to safeguard.
For more clearly setting forth structure characteristic of the present utility model and effect, below in conjunction with accompanying drawing and specific embodiment, the utility model is described in detail.
Accompanying drawing explanation
Fig. 1 is the partial structurtes schematic diagram of the preferred embodiment of the utility model;
Fig. 2 is the enlarged diagram of the piston rod of the preferred embodiment of the utility model;
Fig. 3 is the enlarged diagram of the piston of the preferred embodiment of the utility model.
Accompanying drawing identifier declaration.
10, piston rod 11, first arc groove
20, piston 21, second arc groove
22, tapped hole 23, holding cavity
30, steel ball 40, flush end screw.
Embodiment
Please refer to shown in Fig. 1 to Fig. 3, that show the concrete structure of the preferred embodiment of the utility model, include piston rod 10 and piston 20.
Wherein, the middle part outer wall of this piston rod 10 is equipped with the first arc groove 11.In the present embodiment, this first arc groove 11 is two of being arranged side by side.This piston 20 is fixedly arranged on piston rod 10, and the internal face of this piston 20 is equipped with the second arc groove 21, and in the present embodiment, this second arc groove 21 is also two of being arranged side by side.This piston 20 is provided with a tapped hole 22, the inner of this tapped hole 22 is communicated with the second arc groove 21.This first arc groove 11 and the second arc groove 21 enclose and are configured to a holding cavity 23, some steel balls 30 are provided with in this holding cavity 23, the size of this steel ball 30 and the size of holding cavity 23 suitable, one flush end Cock screw 40 is fixed in tapped hole 22, thus prevents steel ball 30 from easing out thus piston 20 is fixed on piston rod 10.
Assembling process of the present utility model is as follows: first, is first adjusted the position of piston rod 10 with piston 20, is then inserted from tapped hole 22 in holding cavity 23 by steel ball 30; Finally, flush end Cock screw 40 is fixed in tapped hole 22, utilizes flush end Cock screw 40 limit the radial degrees of freedom of steel ball 30 thus make the axial freedom of steel ball 30 limited piston 20, thus realize the fixed installation of piston 20.
In sum, design focal point of the present utility model is, by being provided with some steel balls in holding cavity, and coordinate flush end screw to be fixed in tapped hole to prevent steel ball from rolling out from tapped hole, thus limit the radial degrees of freedom of steel ball thus reach the object of the axial freedom of steel ball limited piston, thus realize the fixed installation of piston, not only effectively reduce conventional piston and assemble loaded down with trivial details problem, improve the reliability that piston is locking, and avoid the loss that oil hydraulic cylinder in use brings because piston comes off, improve oil hydraulic cylinder product reliability and Security, enhance productivity simultaneously, reduce the cost of production of oil hydraulic cylinder, improve the market competitiveness, and the utility model structure is simple, easy to process, easy accessibility, anti-loosing effect be good, be easy to safeguard.
The above, it is only preferred embodiment of the present utility model, not technical scope of the present utility model is imposed any restrictions, therefore every above embodiment is done according to technical spirit of the present utility model any trickle amendment, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (2)
1. the fixed anti-loosening device of piston of easy care steel ball easy to process, include piston rod and piston, this piston is fixedly arranged on piston rod, it is characterized in that: the middle part outer wall of this piston rod is equipped with the first arc groove; The internal face of this piston is equipped with the second arc groove, this piston is provided with a tapped hole, the inner of this tapped hole is communicated with the second arc groove, this first arc groove and the second arc groove enclose and are configured to a holding cavity, some steel balls are provided with in this holding cavity, the size of this steel ball and the size of holding cavity suitable, a flush end Cock screw is fixed in tapped hole.
2. the fixed anti-loosening device of piston of easy care steel ball easy to process according to claim 1, is characterized in that: described first arc groove is two that are arranged side by side, and this second arc groove is also two of being arranged side by side accordingly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704148.9U CN204312454U (en) | 2014-11-21 | 2014-11-21 | The fixed anti-loosening device of piston of easy care steel ball easy to process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420704148.9U CN204312454U (en) | 2014-11-21 | 2014-11-21 | The fixed anti-loosening device of piston of easy care steel ball easy to process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204312454U true CN204312454U (en) | 2015-05-06 |
Family
ID=53134772
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420704148.9U Expired - Fee Related CN204312454U (en) | 2014-11-21 | 2014-11-21 | The fixed anti-loosening device of piston of easy care steel ball easy to process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204312454U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257626A (en) * | 2015-11-09 | 2016-01-20 | 无锡市长江液压缸厂 | Piston connection anti-looseness structure used for hydraulic cylinder |
-
2014
- 2014-11-21 CN CN201420704148.9U patent/CN204312454U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257626A (en) * | 2015-11-09 | 2016-01-20 | 无锡市长江液压缸厂 | Piston connection anti-looseness structure used for hydraulic cylinder |
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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: 20150506 Termination date: 20191121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |