CN204061404U - A kind of hydraulic ram oil cylinder - Google Patents
A kind of hydraulic ram oil cylinder Download PDFInfo
- Publication number
- CN204061404U CN204061404U CN201420509766.8U CN201420509766U CN204061404U CN 204061404 U CN204061404 U CN 204061404U CN 201420509766 U CN201420509766 U CN 201420509766U CN 204061404 U CN204061404 U CN 204061404U
- Authority
- CN
- China
- Prior art keywords
- piston
- inner cylinder
- oil cylinder
- outside thread
- wall
- 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
Links
- 239000003921 oil Substances 0.000 description 21
- 230000007774 longterm Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006748 scratching Methods 0.000 description 1
- 230000002393 scratching effect Effects 0.000 description 1
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Abstract
The utility model provides a kind of hydraulic ram oil cylinder, can either solve the problem that existing support oil cylinder can not realize long-time locking, also can prevent inner wall of cylinder from the problem of " scuffing of cylinder bore " occurring simultaneously.The technical solution of the utility model is: comprise bulb base, adjusting nut, outer cylinder, inner cylinder tube, piston and piston rod, described bulb base upper end is connected with described inner cylinder tube underpart, the outside sheathed described outer cylinder of described inner cylinder tube, described bulb base upper end sidewall is provided with the first outside thread, described adjusting nut is sheathed on described first outside thread, and described inner cylinder tube outer wall is provided with the second outside thread; Described piston is fixed on piston-rod lower end outer wall, and the lower end surface of described piston is provided with the support platform radially inwardly stretched out, and described support platform is fixed on described piston rod end face by screw.
Description
Technical field
The utility model relates to a kind of oil cylinder, is specifically related to a kind of hydraulic ram oil cylinder.
Background technique
The existing hydraulic jack being applied to vehicular platform support and leveling is all be selected from conventional piston cylinder or plunger case, and this two classes oil cylinder is made up of piston, piston rod, guide sleeve, cylinder barrel, cylinder cap, bulb base, piston rod seal ring, piston seal ring, O-ring seals, dust ring and supporting ring etc. substantially.The structural principle of this two classes oil cylinder is all uncomplicated, can realize effective support of vehicular platform.But the piston cylinder of this routine does not possess long-term locking function, and it is more difficult to realize long-term locking with plunger case.Even if achieved the locking in supporting leg loop by equilibrium valve or Pilot operated check valve, but the long-term locking of the long-term stability of vehicular platform height and oil cylinder to be kept still very difficult.
Based on this kind of deficiency, this time the hydraulic ram oil cylinder of model utility have employed the working principle of two-way ram cylinder, structural type carries out innovation and model utility, makes the support oil cylinder of this model utility possess the function of effective support of vehicular platform, leveling and long-term locking.
Model utility content
The utility model provides a kind of hydraulic ram oil cylinder, can either solve the problem that existing support oil cylinder can not realize long-time locking, also can prevent inner wall of cylinder from the problem of " scuffing of cylinder bore " occurring simultaneously.
Technological scheme of the present utility model is: comprise bulb base, adjusting nut, outer cylinder, inner cylinder tube, piston and piston rod, described bulb base upper end is connected with described inner cylinder tube underpart, the outside sheathed described outer cylinder of described inner cylinder tube, described bulb base upper end sidewall is provided with the first outside thread, described adjusting nut is sheathed on described first outside thread, and described inner cylinder tube outer wall is provided with the second outside thread; Described piston is fixed on piston-rod lower end outer wall, and the lower end surface of described piston is provided with the support platform radially inwardly stretched out, and described support platform is fixed on described piston rod end face by screw.
As preferably, the diameter of described inner cylinder tube is less than or equal to described first externally threaded path.
As preferably, described second outside thread is identical with the first externally threaded thread parameter.
As preferably, described inner cylinder tube outer wall is ledge structure, and its diameter near bulb base one end is less than the diameter of the other end, and described second outside thread is located at the outer wall of the less one end of diameter.
As preferably, the external diameter of described adjusting nut is greater than the internal diameter of described outer cylinder.
The beneficial effects of the utility model are:
1, support oil cylinder is provided with adjustable nut, matches with the second outside thread on inner cylinder tube, the effect of firm outer cylinder can be served, thus ensure the long-term locking of oil cylinder;
2, the piston in oil cylinder is provided with the support platform fixed by screw and piston rod end, ensures that piston relative to piston rod, axial deflection neither occurs and also radial rotary do not occur, to prevent " scuffing of cylinder bore " phenomenon.
Accompanying drawing explanation
Fig. 1 is overall structure sectional view of the present utility model.
Fig. 2 is the close-up schematic view at A place in Fig. 1.
Fig. 3 is the close-up schematic view at B place in Fig. 1.
Fig. 4 is the partial schematic diagram that oil cylinder is in locking state.
Embodiment
Embodiment of the present utility model is described in detail below in conjunction with accompanying drawing.
As shown in Figure 1 to Figure 3, the structure of the present embodiment comprises bulb base 1, adjusting nut 2, outer cylinder 5, inner cylinder tube 4, piston 3 and piston rod 7, bulb base 1 upper end is connected with inner cylinder tube 4 underpart, the outside sheathed outer cylinder 5 of inner cylinder tube 4, bulb base 1 upper end sidewall is provided with the first outside thread 10, adjusting nut 2 is sheathed on the first outside thread 10, and inner cylinder tube 4 outer wall is provided with the second outside thread 6; Piston 3 is fixed on piston rod 7 lower end outer wall, and the lower end surface of piston 3 is provided with the support platform 8 radially inwardly stretched out, and support platform 8 is fixed on piston rod 7 end face by screw 9.
In the present embodiment, the diameter of inner cylinder tube 4 is less than or equal to the path of the first outside thread 10.Second outside thread 6 is identical with the thread parameter of the first outside thread 10.Inner cylinder tube 4 outer wall is ledge structure, and its diameter near bulb base 1 one end is less than the diameter of the other end, and the second outside thread 6 is located at the outer wall of the less one end of diameter.The external diameter of adjusting nut 2 is greater than the internal diameter of outer cylinder.
The specific works principle of this oil cylinder is described in detail below in conjunction with Fig. 4:
Hydraulic oil is entered after in oil cylinder by oil duct, and oil pressure promotes piston 3 and moves upward, and outer cylinder 5 and piston 3 synchronously move upward, when oil cylinder height reaches pre-provisioning request, and fuel cut-off.Now turn adjustable nut 2, adjustable nut 2 is made to be separated with bulb base 1 and to arrive outside inner cylinder tube 4, coordinate with the second outside thread 6, and make the lower end surface of adjustable nut 2 upper-end surface and the outer cylinder above it 5 fit and tighten, realize the outer cylinder 5 of oil cylinder to lock with inner cylinder tube 4 with this.
In the present embodiment, the support platform 8 radially-inwardly stretched out is provided with in the lower end surface of piston 3, and support platform 8 is fixed on piston rod 7 lower end surface by screw 9, can prevent from, during piston up-down, axial deflection or the rotation of radial direction occur with this, thus prevent pistons end edge and inboard wall of cylinder block from scratching, ensure that the sealability that oil cylinder is good while preventing " scuffing of cylinder bore " phenomenon.
Claims (5)
1. a hydraulic ram oil cylinder, it is characterized in that: comprise bulb base, adjusting nut, outer cylinder, inner cylinder tube, piston and piston rod, described bulb base upper end is connected with described inner cylinder tube underpart, the outside sheathed described outer cylinder of described inner cylinder tube, described bulb base upper end sidewall is provided with the first outside thread, described adjusting nut is sheathed on described first outside thread, and described inner cylinder tube outer wall is provided with the second outside thread; Described piston is fixed on piston-rod lower end outer wall, and the lower end surface of described piston is provided with the support platform radially inwardly stretched out, and described support platform is fixed on described piston rod end face by screw.
2. a kind of hydraulic ram oil cylinder according to claim 1, is characterized in that: the diameter of described inner cylinder tube is less than or equal to described first externally threaded path.
3. a kind of hydraulic ram oil cylinder according to claim 1, is characterized in that: described second outside thread is identical with the first externally threaded thread parameter.
4. a kind of hydraulic ram oil cylinder according to claim 1, it is characterized in that: described inner cylinder tube outer wall is ledge structure, its diameter near bulb base one end is less than the diameter of the other end, and described second outside thread is located at the outer wall of the less one end of diameter.
5. a kind of hydraulic ram oil cylinder according to claim 1, is characterized in that: the external diameter of described adjusting nut is greater than the internal diameter of described outer cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509766.8U CN204061404U (en) | 2014-09-04 | 2014-09-04 | A kind of hydraulic ram oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420509766.8U CN204061404U (en) | 2014-09-04 | 2014-09-04 | A kind of hydraulic ram oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204061404U true CN204061404U (en) | 2014-12-31 |
Family
ID=52202930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420509766.8U Expired - Fee Related CN204061404U (en) | 2014-09-04 | 2014-09-04 | A kind of hydraulic ram oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204061404U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979187A (en) * | 2017-04-26 | 2017-07-25 | 西安电子工程研究所 | A kind of hydraulic cylinder for being used to support |
| CN108757638A (en) * | 2018-06-11 | 2018-11-06 | 江苏万川高压电气有限公司 | The tight boosting hydraulic cylinder of servo-actuated self-locking |
-
2014
- 2014-09-04 CN CN201420509766.8U patent/CN204061404U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106979187A (en) * | 2017-04-26 | 2017-07-25 | 西安电子工程研究所 | A kind of hydraulic cylinder for being used to support |
| CN106979187B (en) * | 2017-04-26 | 2018-06-01 | 西安电子工程研究所 | A kind of hydraulic cylinder being used to support |
| CN108757638A (en) * | 2018-06-11 | 2018-11-06 | 江苏万川高压电气有限公司 | The tight boosting hydraulic cylinder of servo-actuated self-locking |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141231 |