CN202718953U - Collision-resistant hydraulic oil cylinder - Google Patents
Collision-resistant hydraulic oil cylinder Download PDFInfo
- Publication number
- CN202718953U CN202718953U CN2012202988549U CN201220298854U CN202718953U CN 202718953 U CN202718953 U CN 202718953U CN 2012202988549 U CN2012202988549 U CN 2012202988549U CN 201220298854 U CN201220298854 U CN 201220298854U CN 202718953 U CN202718953 U CN 202718953U
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- China
- Prior art keywords
- cylinder barrel
- piston
- cylinder
- piston rod
- hydraulic jack
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- 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 relates to a collision-resistant hydraulic oil cylinder comprising a cylinder barrel, a piston, a piston rod and a cylinder cover, wherein the piston is contained in the cylinder barrel and can move back and forth in the cylinder barrel, one end of the piston rod is fixedly connected with the piston, and the other end of the piston rod extends out of the cylinder barrel. The cylinder cover is arranged at one end of the cylinder barrel, and the bottom of the cylinder barrel is provided with a rubber pad arranged relative to the piston. A limiting gasket is arranged on the piston rod outside the cylinder barrel, and abuts against the cylinder cover. The rubber pad is arranged at the bottom of the cylinder barrel and the limiting gasket is arranged on the piston rod, so the collision-resistant hydraulic oil cylinder can prevent the piston from directly colliding with the bottom of the cylinder barrel, prolongs service life of the hydraulic oil cylinder, generates little vibration, and is stable to operate.
Description
[technical field]
The utility model relates to a kind of hydraulic jack, is specifically related to a kind of crashproof hydraulic jack, belongs to the hydraulic equipment technical field.
[background technique]
Hydraulic jack is very widely industrial automation equipment of a kind of application, and it mainly is comprised of several parts such as cylinder barrel, piston and piston rods, makes piston to-and-fro motion in cylinder barrel by the piston rod pushing piston.
The cylinder barrel of the hydraulic jack of prior art and piston adopt metal to make usually, will strong bump occur with cylinder barrel when piston runs to the bottom of cylinder barrel, will greatly shorten the working life of hydraulic jack like this.
Therefore, for avoiding above-mentioned technical problem, necessaryly provide a kind of structure improved crashproof hydraulic jack that has, to overcome described defective of the prior art.
[model utility content]
For addressing the above problem, the purpose of this utility model is to provide a kind of crashproof hydraulic jack that can effectively avoid piston impact cylinder barrel bottom.
For achieving the above object, the technological scheme that the utility model is taked is: a kind of crashproof hydraulic jack, and it comprises cylinder barrel, piston, piston rod and cylinder cap; Wherein, described piston is contained in the cylinder barrel, and can to-and-fro motion in cylinder barrel; Described piston rod one end and piston Joint, the other end extends outside the cylinder barrel; Described cylinder cap is arranged at an end of cylinder barrel; Be provided with a rubber pad in the bottom of described cylinder barrel, this rubber pad and piston are oppositely arranged; Be positioned at the outer piston rod of cylinder barrel and be provided with a limiting gasket, this limiting gasket can be connected on the cylinder cap.
Crashproof hydraulic jack of the present utility model further is set to: the end in described piston rod is provided with a connecting head.
Crashproof hydraulic jack of the present utility model further is set to: be provided with a ceramic layer in the surface of described piston, and be provided with seal ring between cylinder barrel and piston.
Compared with prior art, the utlity model has following beneficial effect: crashproof hydraulic jack of the present utility model is by arranging rubber pad and at piston rod limiting gasket is set in the cylinder barrel bottom, thereby can avoid piston directly and bottom the cylinder barrel to clash into, prolonged the working life of hydraulic jack, and the vibration that produces is less, operates steadily.
[description of drawings]
Fig. 1 is the structural representation of crashproof hydraulic jack of the present utility model.
[embodiment]
See also shown in the Figure of description 1, the utility model is a kind of crashproof hydraulic jack, and it is formed by a few part assemblings such as cylinder barrel 1, piston 2, piston rod 3 and cylinder cap 4.
Wherein, wherein, described cylinder barrel 1 adopts stainless steel to make.Described cylinder cap 4 is arranged at an end of cylinder barrel 1.Be provided with a rubber pad 5 in the bottom of described cylinder barrel 1, this rubber pad 5 and piston 2 are oppositely arranged.By this rubber pad 5 is set, thereby can avoid piston 2 directly to impact the bottom of cylinder barrel 1.
Described piston 2 is contained in the cylinder barrel 1, and can be in cylinder barrel 1 interior to-and-fro motion.Be provided with a ceramic layer 21 in the surface of described piston 2, thereby increased the wear resistance of this piston 2.Between described cylinder barrel 1 and piston 2, be provided with seal ring 6, thereby increased sealing between the two.
Described piston rod 3 one ends and piston 2 Joints, the other end extends outside the cylinder barrel 1.Be positioned at cylinder barrel 1 outer piston rod 3 and be provided with a limiting gasket 31, this limiting gasket 31 can be connected on the cylinder cap 4, and at this moment, piston rod 3 can not push in the cylinder barrel 1 again, further avoids piston 2 directly to impact the bottom of cylinder barrel 1.Further, the end in described piston rod 3 is provided with a connecting head 32.Can be connected with hydraulic jack driving mechanism (not shown) by this connecting head 32 connects.
Crashproof hydraulic jack of the present utility model is by arranging rubber pad 5 and at piston rod 3 limiting gasket 31 is set in cylinder barrel 1 bottom, thereby can avoid piston 2 direct and cylinder barrel 1 bottom bumps, prolonged the working life of hydraulic jack, and the vibration that produces is less, operates steadily.
Above embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within make any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.
Claims (3)
1. a crashproof hydraulic jack is characterized in that: comprise cylinder barrel, piston, piston rod and cylinder cap; Wherein, described piston is contained in the cylinder barrel, and can to-and-fro motion in cylinder barrel; Described piston rod one end and piston Joint, the other end extends outside the cylinder barrel; Described cylinder cap is arranged at an end of cylinder barrel; Be provided with a rubber pad in the bottom of described cylinder barrel, this rubber pad and piston are oppositely arranged; Be positioned at the outer piston rod of cylinder barrel and be provided with a limiting gasket, this limiting gasket can be connected on the cylinder cap.
2. crashproof hydraulic jack as claimed in claim 1, it is characterized in that: the end in described piston rod is provided with a connecting head.
3. crashproof hydraulic jack as claimed in claim 2 is characterized in that: be provided with a ceramic layer in the surface of described piston, and be provided with seal ring between cylinder barrel and piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202988549U CN202718953U (en) | 2012-06-17 | 2012-06-17 | Collision-resistant hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202988549U CN202718953U (en) | 2012-06-17 | 2012-06-17 | Collision-resistant hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202718953U true CN202718953U (en) | 2013-02-06 |
Family
ID=47620777
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202988549U Expired - Fee Related CN202718953U (en) | 2012-06-17 | 2012-06-17 | Collision-resistant hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202718953U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626767A (en) * | 2016-03-14 | 2016-06-01 | 力帆实业(集团)股份有限公司 | Damping rubber cushion |
| CN110822036A (en) * | 2018-08-07 | 2020-02-21 | 舍弗勒技术股份两合公司 | Hydraulic tensioning device |
-
2012
- 2012-06-17 CN CN2012202988549U patent/CN202718953U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105626767A (en) * | 2016-03-14 | 2016-06-01 | 力帆实业(集团)股份有限公司 | Damping rubber cushion |
| CN110822036A (en) * | 2018-08-07 | 2020-02-21 | 舍弗勒技术股份两合公司 | Hydraulic tensioning device |
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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: 20130206 Termination date: 20150617 |
|
| EXPY | Termination of patent right or utility model |