CN201368083Y - Single-action piston type hydraulic cylinder - Google Patents
Single-action piston type hydraulic cylinder Download PDFInfo
- Publication number
- CN201368083Y CN201368083Y CNU2009200839228U CN200920083922U CN201368083Y CN 201368083 Y CN201368083 Y CN 201368083Y CN U2009200839228 U CNU2009200839228 U CN U2009200839228U CN 200920083922 U CN200920083922 U CN 200920083922U CN 201368083 Y CN201368083 Y CN 201368083Y
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- CN
- China
- Prior art keywords
- piston
- cylinder
- oil
- piston rod
- hydraulic cylinder
- 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 provides a single-action piston type hydraulic cylinder, which comprises a cylinder, a piston mounted in the cylinder, and a piston rod connected with the piston. An end cover and a bottom cover are arranged at two ends of the cylinder respectively; a buffering device connected with the piston rod is arranged in a lower support; a differential pressure pin is arranged in the piston; one end of the differential pressure pin extends out of the piston; a differential pressure spring and a spring seat are arranged at the extension end of the differential pressure pin; the other end of the piston rod extends out of the end cover of the cylinder; an oil inlet pipe and an oil pipe joint are fixed on one side of the cylinder through an oil pipe fixing seat, and an oil return joint is arranged on the other side of the cylinder; a hole of the lower support arranged at the rear end of the bottom cover is in interference fit with a limiting sleeve; and the limiting sleeve is welded with the bottom cover into a whole. Therefore, the hydraulic cylinder of the utility model can adopt clearance oil return through the limiting sleeve, and the clearance oil return can perform a flow limiting function, thereby resulting in buffering, and avoiding oil leakage of welding seams caused by the impact; and in addition, the process is simplified and the welding is more convenient.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder, especially a kind of single-acting piston type oil hydraulic cylinder.
Background technique
Existing single-acting piston type oil hydraulic cylinder, there is inhomogeneous, nonstandard phenomenon in the conical surface of the buffer casting buffering conical surface of its damping device and lower support assembly welding back processing, makes cushioning effect not good, and causes the leakage of oil of lower support weld seam easily.
Summary of the invention
The utility model provides a kind of single-acting piston type oil hydraulic cylinder, can improve the cushioning effect of cylinder cushion device, avoids cushioning the problem of the not good weld seam leakage of oil that causes.
In order to solve the problems of the technologies described above, the technical solution of the utility model is as follows: described single-acting piston type oil hydraulic cylinder, by cylinder barrel, be installed in the piston in the cylinder barrel, and the piston rod that is connected with piston is formed, the two ends of cylinder barrel are respectively equipped with end cap and bottom, be provided with the damping device that links to each other with piston rod in the lower support, be provided with the branch pad in the described piston, divide an end of pad from piston, to stretch out, divide the external part of pad to be provided with branch pressing spring and spring seat, the other end of piston rod stretches out from the end cap of cylinder barrel, side on the cylinder barrel is fixed with oil inlet pipe and oil connection by the oil pipe fixed base, its opposite side is provided with back leakage connection, it is characterized in that: interference fit has stop collar in the hole of the set lower support in described bottom rear end, and stop collar and bottom are welded into one.
Beneficial effect:
Use single-acting piston type oil hydraulic cylinder described in the utility model, interference fit has stop collar in the lower support, stop collar and bonnet are welded into one, oil hydraulic cylinder just can pass through the oil return of stop collar gap like this, because the gap oil return can be played the effect of current limliting, thereby can cushion, and avoids the weld seam leakage of oil that is caused by impact, and simplified technology, make that welding is convenient.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the partial enlarged drawing of A portion in the utility model.
Fig. 3 is a left view of the present utility model.
Embodiment
As Fig. 1, Fig. 2, the utility model single-acting piston type oil hydraulic cylinder shown in Figure 3, by cylinder barrel 1, be installed in the piston 2 in the cylinder barrel 1, and the piston rod 3 that is connected with piston 2 is formed, the two ends of cylinder barrel 1 are respectively equipped with end cap 4 and bottom 5, one end of piston rod 3 stretches out from piston 2 and stretches in the bottom 5, be provided with back-up ring 6 successively between piston rod 3 and the bottom 5, anchor ear 7, jump ring 8, bottom 5 rear ends are provided with lower support 9, be provided with branch pad 11 in the described piston 2, divide an end of pad 11 from piston 2, to stretch out, divide the external part of pad 11 to be provided with branch pressing spring 12 and spring seat 13, the other end of piston rod 3 stretches out from the end cap 4 of cylinder barrel 1, be provided with dust ring 14 between piston rod 3 and the end cap 4, O type circle 15 and oil sealing 16, side on the cylinder barrel 1 is fixed with oil inlet pipe 18 and oil connection 19 by oil pipe fixed base 17, its opposite side is provided with back leakage connection 20, interference fit has stop collar 10 in the hole of described lower support 9, and stop collar 10 is welded into one with bottom 5.
Claims (1)
1, the single-acting piston type oil hydraulic cylinder, by cylinder barrel, be installed in the piston in the cylinder barrel, and the piston rod that is connected with piston is formed, the two ends of cylinder barrel are respectively equipped with end cap and bottom, be provided with the damping device that links to each other with piston rod in the lower support, be provided with the branch pad in the described piston, divide an end of pad from piston, to stretch out, divide the external part of pad to be provided with branch pressing spring and spring seat, the other end of piston rod stretches out from the end cap of cylinder barrel, side on the cylinder barrel is fixed with oil inlet pipe and oil connection by the oil pipe fixed base, its opposite side is provided with back leakage connection, it is characterized in that: interference fit has stop collar in the hole of the set lower support in described bottom rear end, and stop collar and bottom are welded into one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200839228U CN201368083Y (en) | 2009-02-27 | 2009-02-27 | Single-action piston type hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009200839228U CN201368083Y (en) | 2009-02-27 | 2009-02-27 | Single-action piston type hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201368083Y true CN201368083Y (en) | 2009-12-23 |
Family
ID=41486976
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009200839228U Expired - Fee Related CN201368083Y (en) | 2009-02-27 | 2009-02-27 | Single-action piston type hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201368083Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528259A (en) * | 2011-11-04 | 2012-07-04 | 天津天德减震器有限公司 | Limit fixing sleeve welding device |
-
2009
- 2009-02-27 CN CNU2009200839228U patent/CN201368083Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102528259A (en) * | 2011-11-04 | 2012-07-04 | 天津天德减震器有限公司 | Limit fixing sleeve welding device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: HUBEI JIAHENG TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: JIAHENG HYDRAULIC MACHINERY CO., LTD. Effective date: 20110314 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 442500 CHANGLING INDUSTRIAL PARK, YUNXIAN ECONOMIC DEVELOPMENT ZONE, SHIYANCITY, HUBEI PROVINCE TO: 442512 CHANGLING INDUSTRIAL PARK, CHADIAN, YUNXIAN ECONOMIC DEVELOPMENT ZONE, SHIYAN CITY, HUBEI PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110314 Address after: 442512 Shiyan city of Hubei province tea Yunxian Economic Development Zone, Changling Industrial Park Patentee after: Hubei Jiaheng Technology Co., Ltd. Address before: 442500 Changling Industrial Park, Yunxian Economic Development Zone, Hubei, Shiyan Patentee before: Jiaheng Hydraulic Machinery Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091223 Termination date: 20130227 |