CN204403046U - A kind of hydraulic press hydraulic cylinder self locking apparatus - Google Patents
A kind of hydraulic press hydraulic cylinder self locking apparatus Download PDFInfo
- Publication number
- CN204403046U CN204403046U CN201520047972.6U CN201520047972U CN204403046U CN 204403046 U CN204403046 U CN 204403046U CN 201520047972 U CN201520047972 U CN 201520047972U CN 204403046 U CN204403046 U CN 204403046U
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- CN
- China
- Prior art keywords
- sleeve
- lock tube
- throw
- piston rod
- cylinder body
- 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 discloses a kind of hydraulic press hydraulic cylinder self locking apparatus, belong to field of hydraulic equipment, comprise cylinder body, piston, piston rod, be provided with self-locking device and positioning device in described cylinder body, self-locking device is connected by spring with positioning device.Be combined with locking device by positioning device, make piston rod realize self-locking at any stroke.
Description
Technical field
The utility model relates to field of hydraulic equipment, is specifically related to a kind of hydraulic press hydraulic cylinder self locking apparatus.
Background technique
Oil hydraulic cylinder is by the equipment of hydraulic driving outputting power, forms primarily of cylinder body and piston, and the inner chamber integrated of cylinder body is closed, and piston is arranged in inner chamber of cylinder block with sliding matching mode, and inner chamber of cylinder block is separated into two active chambers by piston.During hydraulic cylinder works, one of them active chamber oil-feed, another work oil return, can promote piston and slide, thus outputting power.
Carrying out in industrial production and schedule life, oil hydraulic cylinder extensively uses on a hydraulic press, often needs piston rod to realize self-locking at any stroke in hydraulic cylinder works.
At present, market has occurred be equipped with on oil hydraulic cylinder micro-touch switch, Hall transducer, light sensor even grating scale etc. location and self-locking can be provided, but it is high to there is control system cost, control location energy consumption is large and use under not being suitable for poor working conditions, therefore effectively cannot meet the actual needs used.
Model utility content
The utility model its object is to provide a kind of hydraulic press hydraulic cylinder self locking apparatus, meets piston rod and realizes self-locking at any stroke.
For realizing the utility model object, the technological scheme of employing is:
A kind of hydraulic press hydraulic cylinder self locking apparatus, comprise cylinder body, piston, piston rod, it is characterized in that: in described cylinder body, be provided with self-locking device and positioning device, self-locking device comprises lock tube, throw-out collar and spring, lock tube one end is fixedly mounted on piston, lock tube inner hole sleeve on the piston rod, lock tube the other end outer wall is inclined-plane, throw-out collar is positioned at one end that lock tube outer wall is inclined-plane, throw-out collar inner hole sleeve on the piston rod, throw-out collar endoporus is provided with corresponding inclined-plane with one end that lock tube outer wall coordinates, throw-out collar is provided with the first hydraulic oil passing hole, spring inner sleeve piston rod, spring one end is connected on throw-out collar, the spring the other end connects on the positioning device, positioning device comprises positioning ring, sleeve, handle, positioning ring left end is connected with above-mentioned spring, positioning ring right-hand member is fixedly connected with sleeve, positioning ring is provided with the second hydraulic oil passing hole, sleeve stretches out cylinder body, and sleeve outer wall is provided with screw thread, and cylinder body is provided with corresponding screw thread with sleeve fitting surface, sleeve stretches out the outer one end of cylinder body and is provided with handle, and sleeve and positioning ring endoporus coordinate with piston rod outer wall.
Further, described lock tube is elastic component, is conducive to clamping piston rod and protecting lock tube.
Further, described oblique angle, lock tube inclined-plane, between 10 ° ~ 30 °, is conducive to realizing hydraulic cylinder self locking.
Further, described handle is vehicle steering wheel structure, facilitates sleeve rotating to operate.
The beneficial effects of the utility model: by rotatable handle, make sleeve generation axial displacement, promote positioning ring and move left and right in cylinder body, realize the positioning piston throw of lever.When piston rod work is located, spring compresses throw-out collar, piston promotes lock tube axial motion, and lock tube and throw-out collar friction and Extrusion produce radial force, lock piston bar.Be combined with locking device by positioning device, make piston rod realize self-locking at any stroke.
Accompanying drawing explanation
Fig. 1 is a kind of hydraulic press hydraulic cylinder self locking apparatus structural representation.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
A kind of hydraulic press hydraulic cylinder self locking apparatus as shown in Figure 1, comprising: cylinder body 1, piston 2, piston rod 3, oil inlet hole 4, oil outlet 5, positioning ring 6, handle 7, spring 8, throw-out collar 9, lock tube 10, seal ring 11, first hydraulic oil passing hole 12, second hydraulic oil passing hole 13 and sleeve 14.Self-locking device and positioning device is provided with in described cylinder body 1, self-locking device comprises lock tube 10, throw-out collar 9 and spring 8, the fixed installation of lock tube 10 one end on the piston 2, lock tube 10 inner hole sleeve is on piston rod 3, lock tube 10 the other end outer wall is inclined-plane, throw-out collar 9 is positioned at one end that lock tube 10 outer wall is inclined-plane, throw-out collar 9 inner hole sleeve is on piston rod 3, one end that throw-out collar 9 endoporus coordinates with lock tube 10 outer wall is provided with corresponding inclined-plane, throw-out collar 9 is provided with the first hydraulic oil passing hole 12, spring 8 inner sleeve piston rod 3, spring 8 one end is connected on throw-out collar 9, spring 8 the other end connects on the positioning device, positioning device comprises positioning ring 6, sleeve 14, handle 7, positioning ring 6 left end is connected with above-mentioned spring 8, positioning ring 6 right-hand member is fixedly connected with sleeve 14, positioning ring 6 is provided with the second hydraulic oil passing hole 13, sleeve 14 stretches out cylinder body 1, and sleeve 14 outer wall is provided with screw thread, and cylinder body 1 is provided with corresponding screw thread with sleeve 14 fitting surface, sleeve 14 stretches out the outer one end of cylinder body and is provided with handle 7, and sleeve 14 and positioning ring 6 endoporus coordinate with piston rod 3 outer wall.
This lock tube 10 is elastic component, is conducive to clamping piston rod 3 and protecting lock tube 10.
This oblique angle, lock tube 10 inclined-plane, between 10 ° ~ 30 °, is conducive to realizing hydraulic cylinder self locking.
This handle 7 is vehicle steering wheel, facilitates sleeve 14 rotation process.
Working principle: by rotatable handle 7, makes sleeve 14 that axial displacement occur, and promotes positioning ring 6 and moves left and right in cylinder body 1, realize positioning piston bar 3 stroke.When piston rod 3 works, lock tube 10 coordinates with throw-out collar 9 by thrust, and promote throw-out collar 9 simultaneously and continue mobile, holddown spring 8, when after hydraulic system pressure release, spring 8 extrudes throw-out collar 9, makes lock tube 10 and throw-out collar 9 friction and Extrusion produce radial force, lock piston bar 3.When 5 oil-feed of hydraulic oil oil outlet, hydraulic oil enters rod chamber by the second hydraulic oil passing hole 13 and the first hydraulic oil passing hole 12, promotes piston 2 and moves to rodless cavity, realizes unlocking.Be combined with locking device by positioning device, make piston rod 3 realize self-locking at any stroke.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., all should be included within protection domain of the present utility model.
Claims (4)
1. a hydraulic press hydraulic cylinder self locking apparatus, comprise cylinder body, piston, piston rod, it is characterized in that: in described cylinder body, be provided with self-locking device and positioning device, self-locking device comprises lock tube, throw-out collar and spring, lock tube one end is fixedly mounted on piston, lock tube inner hole sleeve on the piston rod, lock tube the other end outer wall is inclined-plane, throw-out collar is positioned at one end that lock tube outer wall is inclined-plane, throw-out collar inner hole sleeve on the piston rod, throw-out collar endoporus is provided with corresponding inclined-plane with one end that lock tube outer wall coordinates, throw-out collar is provided with the first hydraulic oil passing hole, spring inner sleeve piston rod, spring one end is connected on throw-out collar, the spring the other end connects on the positioning device, positioning device comprises positioning ring, sleeve, handle, positioning ring left end is connected with above-mentioned spring, positioning ring right-hand member is fixedly connected with sleeve, positioning ring is provided with the second hydraulic oil passing hole, sleeve stretches out cylinder body, and sleeve outer wall is provided with screw thread, and cylinder body is provided with corresponding screw thread with sleeve fitting surface, sleeve stretches out the outer one end of cylinder body and is provided with handle, and sleeve and positioning ring endoporus coordinate with piston rod outer wall.
2. hydraulic press hydraulic cylinder self locking apparatus according to claim 1, is characterized in that: described lock tube is elastic component.
3. hydraulic press hydraulic cylinder self locking apparatus according to claim 1, is characterized in that: described oblique angle, lock tube inclined-plane is between 10 ° ~ 30 °.
4. hydraulic press hydraulic cylinder self locking apparatus according to claim 1, is characterized in that: described handle is vehicle steering wheel structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047972.6U CN204403046U (en) | 2015-01-23 | 2015-01-23 | A kind of hydraulic press hydraulic cylinder self locking apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520047972.6U CN204403046U (en) | 2015-01-23 | 2015-01-23 | A kind of hydraulic press hydraulic cylinder self locking apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204403046U true CN204403046U (en) | 2015-06-17 |
Family
ID=53426909
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520047972.6U Expired - Fee Related CN204403046U (en) | 2015-01-23 | 2015-01-23 | A kind of hydraulic press hydraulic cylinder self locking apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204403046U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420371A (en) * | 2017-06-26 | 2017-12-01 | 泸州长江油缸制造有限公司 | The method for preventing automatic moving when hydraulic cylinder piston rod works |
| CN108035934A (en) * | 2017-11-13 | 2018-05-15 | 华中科技大学 | A kind of hydraulic device with real time position auto-lock function |
-
2015
- 2015-01-23 CN CN201520047972.6U patent/CN204403046U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107420371A (en) * | 2017-06-26 | 2017-12-01 | 泸州长江油缸制造有限公司 | The method for preventing automatic moving when hydraulic cylinder piston rod works |
| CN107420371B (en) * | 2017-06-26 | 2019-07-16 | 泸州长江油缸制造有限公司 | The method of automatic moving when preventing hydraulic cylinder piston rod from working |
| CN108035934A (en) * | 2017-11-13 | 2018-05-15 | 华中科技大学 | A kind of hydraulic device with real time position auto-lock function |
| CN108035934B (en) * | 2017-11-13 | 2019-08-30 | 华中科技大学 | A kind of hydraulic device with real time position self-locking function |
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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: 20150617 Termination date: 20220123 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |