CN204186689U - Oil hydraulic cylinder - Google Patents
Oil hydraulic cylinder Download PDFInfo
- Publication number
- CN204186689U CN204186689U CN201420593254.4U CN201420593254U CN204186689U CN 204186689 U CN204186689 U CN 204186689U CN 201420593254 U CN201420593254 U CN 201420593254U CN 204186689 U CN204186689 U CN 204186689U
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- China
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- piston rod
- described piston
- cylinder
- cone
- oil hydraulic
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Abstract
The utility model provides a kind of oil hydraulic cylinder.Described oil hydraulic cylinder, comprise piston element, cylinder sleeve and cylinder cap, described cylinder sleeve is cylindrical structure, described cylinder cap is fixedly connected on described cylinder sleeve one end, described piston element to be located in described cylinder sleeve and axially can be moved freely along it, and described piston element comprises limited ring, push-and-pull ring, Compress Spring, piston rod, piston, current limliting cone and buffer layer.Described piston rod is fixedly connected with described piston, described Compress Spring is sheathed on described piston rod, and described push-and-pull ring set is located at described piston rod, and described limited ring is fixedly connected with described piston rod, described current limliting cone is located at described piston, and described buffer layer is located at described current limliting pyramid tip.Described cylinder cap comprises cone space, cylinder cap body and hydraulic fluid port, and described cone space is located at described cylinder cap one end, and described hydraulic fluid port is located at described cylinder cap outer wall, and is communicated with described cone space.The oil hydraulic cylinder stable buffering that the utility model provides is continuous, and cushion effect is enough.
Description
Technical field
The utility model relates to a kind of hydraulic equipment, is specifically related to a kind of oil hydraulic cylinder.
Background technique
Hydraulic equipment is a kind of equipment of industrial extensive use.Oil hydraulic cylinder is the required constituent elements of hydraulic equipment, and the piston of described hydraulic equipment does high speed to-and-fro motion to provide power in oil hydraulic cylinder.
When piston moves to stroke terminal, often there is violent mechanical collision.In addition, the unexpected stop motion of piston also usually causes pipeline generation water hammer, produces and impacts greatly and noise.Above mechanical shock not only affects the service behaviour of machinery, and can damage other elements of oil hydraulic cylinder and hydraulic system, has very large danger.
For alleviating or preventing this impact shock, have in prior art and damping device is set in oil hydraulic cylinder inside, buffer function to a certain extent can be played, but there is the inadequate stable and continuous of buffering, the problem that cushion effect is too little.
Model utility content
Cushion inadequate stable and continuous, the problem that cushion effect is too little for solving oil hydraulic cylinder in prior art, the utility model provides a kind of stable buffering continuous, the oil hydraulic cylinder that cushion effect is enough.
A kind of oil hydraulic cylinder, comprise piston element, cylinder sleeve and cylinder cap, described piston element comprises piston rod and piston, described piston one end is fixedly connected with described piston rod, described cylinder sleeve is cylindrical structure, described cylinder cap is fixedly connected on described cylinder sleeve one end, described piston to be located in described cylinder sleeve and axially can be moved freely along it, described piston element also comprises current limliting cone, described current limliting cone is located at described piston and is not connected described piston rod one end, described cylinder cap comprises cone space, described current limliting cone and described cone space cooperating.
Described piston element also comprises Compress Spring, and described Compress Spring is sheathed on described piston rod surface.
Described piston element also comprises limited ring and push-and-pull ring, and described limited ring is fixedly connected with described piston rod, and described push-and-pull ring set is located at described piston rod surface, and described Compress Spring is between described push-and-pull ring and described piston.
Described piston element also comprises buffer layer, and described buffer layer is located at described current limliting pyramid tip.
Compared to existing technology, the oil hydraulic cylinder that the utility model provides, by arranging described current limliting cone on described piston, described piston rod arranges described Compress Spring, arranges described buffer layer in described current limliting pyramid tip, solve the inadequate stable and continuous of buffering, the problem that cushion effect is too little.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing described below is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the side sectional view of the oil hydraulic cylinder that the utility model provides.
Embodiment
Below in conjunction with accompanying drawing 1 of the present utility model, carry out clear, complete description to the technological scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.
Referring to Fig. 1, is the side sectional view of the oil hydraulic cylinder that the utility model provides.Described oil hydraulic cylinder 1 comprises piston element 11, cylinder sleeve 13 and cylinder cap 15, and described cylinder sleeve 13 is cylindrical structure, and described cylinder cap 15 is located at described cylinder sleeve 13 one end, and described piston element 11 to be contained in described cylinder sleeve 13 and axially can to reciprocate along it.
Described piston element 11 comprises limited ring 111, push-and-pull ring 112, Compress Spring 113, piston rod 114, piston 115, current limliting cone 116 and buffer layer 117.Described piston 115 one end is fixedly connected with described piston rod 114, described Compress Spring 113 is sheathed on described piston rod 114, described push-and-pull ring 112 is sheathed on described piston rod 114 one end, described limited ring 111 is fixedly connected with the end of described piston rod 114, described current limliting cone 116 is located at described piston 115 away from described piston rod 114 one end, and described buffer layer 117 is located at described current limliting cone 116 top.
Described cylinder cap 15 comprises cone space 151, cylinder cap body 153 and hydraulic fluid port 155, and described cone space 151 is located at described cylinder cap 15 one end, and described hydraulic fluid port 155 is located at described cylinder cap 15 outer wall, and is communicated with described cone space 151.
When described oil hydraulic cylinder 1 works, described piston element 11 moves to described cylinder cap 15, move to described buffer layer 117 surface with the described cylinder cap 15 of described cone space 151 side surperficial concordant time, described current limliting cone 116 enters described cone space 151, radial distance between the two starts to reduce, the hydraulic oil entering described cone space 151 is caused to reduce, described current limliting cone 116 continues mobile, therebetween radial distance reduces further, and the speed reduced is continuous, move more forward, the resistance that needs overcome is larger, plays buffer function thus.
Meanwhile, in the process of described piston element 11 movement, because described push-and-pull ring 112 can move axially along described piston rod 114, so described push-and-pull ring 112 can extrude described Compress Spring 113, described Compress Spring 113 bestows described push-and-pull ring 112 reaction force, slow down its travelling speed, and described limited ring 111 is fixedly connected with described piston rod 114, described Compress Spring 113 is not connected with described push-and-pull ring 112, so when described pull bar 112 drives described piston element 11 backhaul, pulling force can't be produced to described Compress Spring 113, its working life can not be affected.This measure synchronously can strengthen buffer capacity when described piston element 11 works.
Described current limliting cone 116 and described cone space 151 are with the use of, good seal.When described current limliting cone 116 is moved to described cone space 151, be located at the described buffer layer 117 on described current limliting cone 116 top before the conical surface of described current limliting cone 116 and the taper-face contact of described cone space 151, described buffer layer 117 has contacted described cylinder cap body 153, also can play buffer function to a certain extent.
Compared to existing technology, the oil hydraulic cylinder 1 that the utility model provides by arranging described current limliting cone 116 on described piston 115, described piston rod 114 arranges described Compress Spring 113, on described current limliting cone 116 top, described buffer layer 117 is set, make described oil hydraulic cylinder 1 cushion continuous and stable, cushion effect is enough.
The foregoing is only embodiment of the present utility model; not thereby scope of patent protection of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other is relevant, be all in like manner included in scope of patent protection of the present utility model.
Claims (4)
1. an oil hydraulic cylinder, comprise piston element, cylinder sleeve and cylinder cap, described piston element comprises piston rod and piston, described piston one end is fixedly connected with described piston rod, described cylinder sleeve is cylindrical structure, described cylinder cap is fixedly connected on described cylinder sleeve one end, described piston to be contained in described cylinder sleeve and axially can to reciprocate along it, it is characterized in that, described piston element also comprises current limliting cone, described current limliting cone is located at described piston and is not connected described piston rod one end, and described cylinder cap comprises cone space, described current limliting cone and described cone space cooperating.
2. oil hydraulic cylinder according to claim 1, is characterized in that, described piston element also comprises Compress Spring, and described Compress Spring is sheathed on described piston rod surface.
3. oil hydraulic cylinder according to claim 2, it is characterized in that, described piston element also comprises limited ring and push-and-pull ring, and described limited ring is fixedly connected with described piston rod, described push-and-pull ring set is located at described piston rod surface, and described Compress Spring is between described push-and-pull ring and described piston.
4. oil hydraulic cylinder according to claim 1, is characterized in that, described piston element also comprises buffer layer, and described buffer layer is located at described current limliting pyramid tip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593254.4U CN204186689U (en) | 2014-10-14 | 2014-10-14 | Oil hydraulic cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420593254.4U CN204186689U (en) | 2014-10-14 | 2014-10-14 | Oil hydraulic cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204186689U true CN204186689U (en) | 2015-03-04 |
Family
ID=52618698
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420593254.4U Expired - Fee Related CN204186689U (en) | 2014-10-14 | 2014-10-14 | Oil hydraulic cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204186689U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035935A (en) * | 2017-12-24 | 2018-05-15 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of electrohydraulic actuator buffer piston pushing meanss |
| CN108561371A (en) * | 2018-04-26 | 2018-09-21 | 温州至上精密机械有限公司 | A kind of New Buffering oil cylinder |
| CN109987530A (en) * | 2019-04-01 | 2019-07-09 | 南通力威机械有限公司 | Compensation of undulation piston tensioner and its application method |
-
2014
- 2014-10-14 CN CN201420593254.4U patent/CN204186689U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108035935A (en) * | 2017-12-24 | 2018-05-15 | 中国航发贵州红林航空动力控制科技有限公司 | A kind of electrohydraulic actuator buffer piston pushing meanss |
| CN108561371A (en) * | 2018-04-26 | 2018-09-21 | 温州至上精密机械有限公司 | A kind of New Buffering oil cylinder |
| CN108561371B (en) * | 2018-04-26 | 2023-08-29 | 至上重工有限公司 | Novel buffer oil cylinder |
| CN109987530A (en) * | 2019-04-01 | 2019-07-09 | 南通力威机械有限公司 | Compensation of undulation piston tensioner and its application method |
| CN109987530B (en) * | 2019-04-01 | 2024-05-17 | 南通力威机械有限公司 | Wave compensated piston tensioner and method of use |
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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: 20150304 Termination date: 20161014 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |