CN201794854U - Hydraulic cylinder - Google Patents
Hydraulic cylinder Download PDFInfo
- Publication number
- CN201794854U CN201794854U CN2010205121866U CN201020512186U CN201794854U CN 201794854 U CN201794854 U CN 201794854U CN 2010205121866 U CN2010205121866 U CN 2010205121866U CN 201020512186 U CN201020512186 U CN 201020512186U CN 201794854 U CN201794854 U CN 201794854U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- cylinder body
- cylinder sleeve
- wall
- sleeve
- 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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- Pistons, Piston Rings, And Cylinders (AREA)
- Actuator (AREA)
Abstract
The utility model relates to a hydraulic cylinder, comprising a cylinder body, a cylinder sleeve, a piston arranged in the cylinder sleeve and a piston rod connected with the piston, wherein the cylinder body is sheathed on the outer wall of the cylinder sleeve; a cooling cavity is retained between the cylinder body and the cylinder sleeve; the cylinder body is provided with a liquid inlet and a liquid outlet which are communicated with the cooling cavity; and the hydraulic cylinder is characterized in that a groove is arranged on the outer wall of the cylinder sleeve above the cooling cavity, and a step is arranged on the outer wall of the cylinder sleeve below the cooling cavity. The hydraulic cylinder has the characteristics of being good in tightness, strong in stability, easy for dismounting, and convenient for maintenance.
Description
Technical field
The utility model relates to a kind of oil hydraulic cylinder.
Background technique
Because continuous the moving back and forth at a high speed of piston, the temperature of cylinder sleeve constantly raises oil hydraulic cylinder in when work.The intensity and the rigidity of the cylinder sleeve under the high temperature sharply descend, and are easy to damage.For this reason, need constantly cool off cylinder sleeve.The existing type of cooling is exactly to establish a cylinder body on the outer wall of cylinder sleeve, adds cooling liquid in cylinder body.It is not fine that present cylinder body and the sealing between cylinder sleeve reach stable, and cooling liquid is easy to ooze out, and influences the normal operation of oil hydraulic cylinder.Therefore, need a kind of new technological scheme to solve above-mentioned technical problem.
The model utility content
The purpose of this utility model provides a kind of good airproof performance, the strong and easy-to-dismount oil hydraulic cylinder of stability.
The technical solution adopted in the utility model is:
A kind of oil hydraulic cylinder, comprise cylinder body, cylinder sleeve, place piston and the piston rod that is connected with piston in the cylinder sleeve, described cylinder body is enclosed within on the outer wall of cylinder sleeve, leave cooling chamber between described cylinder body and the cylinder sleeve, described cylinder body is provided with liquid entering hole and the liquid outlet with communicating with cooling cavity, have groove on the outer wall of cylinder jachet of described cooling chamber top, the outer wall of cylinder jachet of described cooling chamber below is provided with step.
Be equipped with seal ring on described groove and the step.
Described seal ring is an elastic seal ring.
The utility model has groove on the outer wall of cylinder jachet above the cooling chamber, be provided with step on the outer wall of cylinder jachet below the cooling chamber, and cylinder body is enclosed within on the cylinder sleeve like this, cover cylinder cap after, cylinder body just is fixed on the step; Only need in the time of need pulling down cylinder body cylinder cap is pulled down, cylinder body is pulled down from the top of cylinder sleeve, and is convenient and swift.
The utility model has the advantages that: good airproof performance, stability strong and easy to assemble, be convenient to the maintenance.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model.
Wherein: 1, cylinder body, 2, cylinder sleeve, 3, piston, 4, piston rod, 5, cooling chamber, 6, liquid entering hole, 7, liquid outlet, 8, groove, 9, step, 10, elastic seal ring.
Embodiment
As shown in Figure 1, a kind of oil hydraulic cylinder, comprise cylinder body 1, cylinder sleeve 2, place piston 3 and the piston rod 4 that is connected with piston 3 in the cylinder sleeve 2, cylinder body 1 is enclosed within on the outer wall of cylinder sleeve 2, between cylinder body 1 and cylinder sleeve 2, leave cooling chamber 5, on cylinder body 1, be provided with the liquid entering hole 6 and the liquid outlet 7 that communicate with cooling chamber 5, on 2 outer walls of the cylinder sleeve above the cooling chamber 5, have groove 8, on 2 outer walls of the cylinder sleeve below the cooling chamber 5, be provided with step 9, in order to strengthen the sealing of 2 of cylinder body 1 and cylinder sleeves, on groove 8 and step 9, all be provided with elastic seal ring 10.
Claims (3)
1. oil hydraulic cylinder, comprise cylinder body, cylinder sleeve, place piston and the piston rod that is connected with piston in the cylinder sleeve, described cylinder body is enclosed within on the outer wall of cylinder sleeve, leave cooling chamber between described cylinder body and the cylinder sleeve, described cylinder body is provided with liquid entering hole and the liquid outlet with communicating with cooling cavity, it is characterized in that: have groove on the outer wall of cylinder jachet of described cooling chamber top, the outer wall of cylinder jachet of described cooling chamber below is provided with step.
2. a kind of oil hydraulic cylinder according to claim 1 is characterized in that: be equipped with seal ring on described groove and the step.
3. a kind of oil hydraulic cylinder according to claim 2 is characterized in that: described seal ring is an elastic seal ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205121866U CN201794854U (en) | 2010-08-30 | 2010-08-30 | Hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205121866U CN201794854U (en) | 2010-08-30 | 2010-08-30 | Hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201794854U true CN201794854U (en) | 2011-04-13 |
Family
ID=43849763
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205121866U Expired - Fee Related CN201794854U (en) | 2010-08-30 | 2010-08-30 | Hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201794854U (en) |
-
2010
- 2010-08-30 CN CN2010205121866U patent/CN201794854U/en not_active Expired - Fee Related
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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: 20110413 Termination date: 20110830 |