CN202659620U - Oil cylinder ear ring locking pre-tight device - Google Patents
Oil cylinder ear ring locking pre-tight device Download PDFInfo
- Publication number
- CN202659620U CN202659620U CN 201220161592 CN201220161592U CN202659620U CN 202659620 U CN202659620 U CN 202659620U CN 201220161592 CN201220161592 CN 201220161592 CN 201220161592 U CN201220161592 U CN 201220161592U CN 202659620 U CN202659620 U CN 202659620U
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- CN
- China
- Prior art keywords
- oil cylinder
- piston rod
- locking
- tightening apparatus
- earrings
- 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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Abstract
The utility model discloses an oil cylinder ear ring locking per-tight device comprising an oil cylinder body, wherein a piston rod is arranged in the oil cylinder body, one end of the piston rod is connected with an ear ring, a locking pre-tight device is arranged on an end portion of the piston rod, and the locking pre-tight device abuts against the ear ring. As the locking pre-tight device is arranged between the piston rod of the oil cylinder and the ear ring, the oil cylinder ear ring locking per-tight device can achieve tight locking of the ear ring and the piston rod and is simple in structure, stable and fast, and good in locking pre-tight effect and controllability. Scraping phenomenon does not occur.
Description
Technical field
The utility model relates to the hydraulic jack field, particularly relates to a kind of oil cylinder locking pre-tightening apparatus.
Background technique
Hydraulic jack is in the hydraulic pressure installation hydraulic energy to be converted to mechanical energy, realizes the executive component of straight reciprocating motion.In equipment uses, usually require oil cylinder reliably to lock in any output services position, and keep the fixed position for a long time, and known locking mode is to adopt stopping screw mostly, destroys screw thread, and dismounting is inconvenient, if adopt other pair screw and tight, the phenomenon of drawing tooth also arranged.
The model utility content
The technical problem that the utility model mainly solves provides a kind of oil cylinder simple in structure, that locking effect good, it is firm to stablize, controllability is good and locks pre-tightening apparatus.
For solving the problems of the technologies described above, the technological scheme that the utility model adopts is: a kind of oil cylinder locking pre-tightening apparatus is provided, comprise the oil cylinder body, be provided with piston rod in the described oil cylinder body, described piston rod one end is connected with earrings, described piston rod end is provided with the locking pre-tightening apparatus, described locking pre-tightening apparatus and earrings butt.
In preferred embodiment of the utility model, described locking pre-tightening apparatus comprises nut, and described nut is connected with piston rod thread, along circumferentially evenly offering some through holes, is connected with the pushing tow bolt in the described through hole on the nut.
In preferred embodiment of the utility model, be provided with pad between described locking pre-tightening apparatus and the earrings.
In preferred embodiment of the utility model, described pad is the cemented carbide pad.
In preferred embodiment of the utility model, be threaded connection between described earrings and the piston rod.
The beneficial effects of the utility model are: the utility model oil cylinder locking pre-tightening apparatus is owing to be provided with the locking pre-tightening apparatus between cylinder piston rod and earrings, can realize the locking of earrings and piston rod ground, simple in structure, firmly stable, the locking pretension is effective, controllability is good, dental phenomenon can not occur drawing.
Description of drawings
Fig. 1 is the perspective view of the utility model oil cylinder locking pre-tightening apparatus one preferred embodiment;
The mark of each parts is as follows in the accompanying drawing: 1, oil cylinder body, 2, piston rod, 3, earrings, 4, nut, 5, the pushing tow bolt, 6, pad.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present utility model is described in detail, thereby so that advantage of the present utility model and feature can be easier to be it will be appreciated by those skilled in the art that protection domain of the present utility model is made more explicit defining.
See also Fig. 1, the utility model is embodiment comprise:
A kind of oil cylinder locking pre-tightening apparatus comprises oil cylinder body 1, is provided with piston rod 2 in the described oil cylinder body 1, and described piston rod 2 one ends are connected with earrings 3, and described piston rod 2 ends are provided with the locking pre-tightening apparatus, described locking pre-tightening apparatus and earrings 3 butts.
Described locking pre-tightening apparatus comprises nut 4, and described nut 4 is threaded with piston rod 2, along circumferentially evenly offering some through holes, is connected with pushing tow bolt 5 in the described through hole on the nut 4.
Be provided with pad 6 between described locking pre-tightening apparatus and the earrings 3, the pushing tow bolt 5 of locking on the pre-tightening apparatus is connected to pad 6 surfaces, prevents that pushing tow bolt 5 from directly contacting with earrings 3 and damage earrings 3 by pressure.Described pad 6 is the cemented carbide pad, has high strength and high wear resistance, long service life,
Be threaded connection between described earrings 3 and the piston rod 2, connect reliable, firm.
During use, to lock pre-tightening apparatus, pad 6 and earrings 3 and be assembled to successively piston rod 2 ends, the nut 4 of rotation lock pre-tightening apparatus, so that locking pre-tightening apparatus and pad 6 are resisted against on the earrings 3, then rotate pushing tow bolt 5, so that pushing tow bolt 5 and pad 6 butts, thereby the locking pretension of realization piston rod 2 and earrings 3.
Compared with prior art, the utility model oil cylinder locking pre-tightening apparatus is owing to be provided with the locking pre-tightening apparatus between cylinder piston rod 2 and earrings 3, can realize earrings 3 and the locking of piston rod 2 ground, simple in structure, firmly stable, the locking pretension is effective, and controllability is good, dental phenomenon can not occur drawing.
The above only is embodiment of the present utility model; be not so limit claim of the present utility model; every equivalent structure or equivalent flow process conversion that utilizes the utility model specification and accompanying drawing content to do; or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present utility model.
Claims (5)
1. an oil cylinder is locked pre-tightening apparatus, comprise oil cylinder body (1), be provided with piston rod (2) in the described oil cylinder body (1), described piston rod (2) one ends are connected with earrings (3), it is characterized in that: described piston rod (2) end is provided with the locking pre-tightening apparatus, described locking pre-tightening apparatus and earrings (3) butt.
2. oil cylinder according to claim 1 is locked pre-tightening apparatus, it is characterized in that: described locking pre-tightening apparatus comprises nut (4), described nut (4) is threaded with piston rod (2), nut (4) is upper along circumferentially evenly offering some through holes, is connected with pushing tow bolt (5) in the described through hole.
3. oil cylinder locking pre-tightening apparatus according to claim 1 is characterized in that: be provided with pad (6) between described locking pre-tightening apparatus and the earrings (3).
4. oil cylinder according to claim 3 is locked pre-tightening apparatus, and it is characterized in that: described pad (6) is the cemented carbide pad.
5. oil cylinder locking pre-tightening apparatus according to claim 1 is characterized in that: be threaded connection between described earrings (3) and the piston rod (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220161592 CN202659620U (en) | 2012-04-17 | 2012-04-17 | Oil cylinder ear ring locking pre-tight device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220161592 CN202659620U (en) | 2012-04-17 | 2012-04-17 | Oil cylinder ear ring locking pre-tight device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202659620U true CN202659620U (en) | 2013-01-09 |
Family
ID=47454529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220161592 Expired - Fee Related CN202659620U (en) | 2012-04-17 | 2012-04-17 | Oil cylinder ear ring locking pre-tight device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202659620U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635593A (en) * | 2012-04-17 | 2012-08-15 | 常州轩达液压机电设备有限公司 | Locking/pre-tightening device for oil cylinder lugs |
-
2012
- 2012-04-17 CN CN 201220161592 patent/CN202659620U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102635593A (en) * | 2012-04-17 | 2012-08-15 | 常州轩达液压机电设备有限公司 | Locking/pre-tightening device for oil cylinder lugs |
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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: 20130109 Termination date: 20130417 |