CN203570753U - Safe locking device applicable for hydraulic oil cylinder - Google Patents
Safe locking device applicable for hydraulic oil cylinder Download PDFInfo
- Publication number
- CN203570753U CN203570753U CN201320439444.6U CN201320439444U CN203570753U CN 203570753 U CN203570753 U CN 203570753U CN 201320439444 U CN201320439444 U CN 201320439444U CN 203570753 U CN203570753 U CN 203570753U
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- lock
- piston
- locking device
- end cap
- braking
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Abstract
The utility model discloses a safe locking device applicable for a hydraulic oil cylinder, which comprises a brake locking cylinder body, a locking sleeve, a locking piston, a spring set and an unlocking oil way, wherein an unlocking end cap and a brake end cap are respectively disposed on two ends of the brake locking cylinder body and a center hole of both thereof is coordinated with a piston rod movably in a sealing manner; the spring set is disposed between the brake end cap and the brake locking cylinder body; and the unlocking oil way is disposed on the unlocking end cap, the locking piston is disposed between the spring set and the unlocking oil way and the locking sleeve is disposed between the locking piston and the piston rod movably by coordination. In the utility model, a mechanical-hydraulic linkage structure is used, wherein mechanical force is applied in locking and hydraulic force is applied in unlocking, so that locking and unlocking can be converted immediately. The safe locking device applicable for the hydraulic oil cylinder in the utility model is compact in structure, convenient in operation and stable & reliable in working, can immediately and effectively lock a working position of the hydraulic oil cylinder and can satisfy use requirements for an output position of the oil cylinder at special working occasions.
Description
Technical field
The utility model belongs to art of power transmission field, further belongs to hydraulic transmission utensil technical field, is specifically related to a kind of compact structure, the easy and simple to handle safe locking device that is suitable for hydraulic jack.
Background technique
Oil hydraulic cylinder is most important executive component in hydraulic system, and it converts hydraulic energy to mechanical energy, and matches with various driving mechanisms, completes various mechanical motion.The features such as that oil hydraulic cylinder has is simple in structure, High power output, stable and reliable for performance, working service is convenient, are widely used in mechanically various.In the practical application of hydraulic jack, in some Special use situation or mechanism, hydraulic cylinder piston rod reaches after certain position, is absolutely not to allow to move, if mobile, can cause mechanism's cisco unity malfunction, even causes security incident.As the jib lubbing mechanism oil cylinder of truck crane, in the process of installing at lifting appliance, often at a certain height, to stay for some time, to equipment is adjusted, if now can not locked position, be very dangerous.The locking of the oil hydraulic cylinder outgoing position of prior art is to adopt hydraulic lock, the defect of the method is unstable properties, sometimes electric meeting is out of order, or pipeline leakage causes system pressure to decline, in this case, hydraulic lock will be lost locking function, cannot guarantee that the outgoing position of piston rod is constant, to production, brings potential safety hazard.For this reason, develop a kind of compact structure, safe and reliable, easy to operate, the safe locking device that can effectively be suitable for hydraulic jack is the key addressing this problem.
Model utility content
The purpose of this utility model is to provide a kind of compact structure, easy and simple to handle, and working stability is suitable for the safe locking device of hydraulic jack reliably.
Object of the present utility model is achieved in that and comprises braking lock cylinder body, lock sleeve, lock piston, cluster spring and release oil circuit, the two ends of described braking lock cylinder body arrange respectively release end cap and braking end cap, and both center holes coordinate with piston rod motive sealing; Between described braking end cap and braking lock cylinder body, cluster spring is set; On described release end cap, release oil circuit is set, between cluster spring and release oil circuit, lock piston is set, the moving lock sleeve that is equipped with between lock piston and piston rod.
The utility model adopts mechanical-hydraulic linkage structure, when locking, utilizes mechanical force, utilizes hydraulic coupling during release.Make locking and release can realize instant conversion.In the time of need to locking, release oil circuit is with no pressure, and lock piston moves to release end under the effect of mechanical force, makes lock sleeve contraction deformation, embraces piston rod, lock piston bar position; Otherwise, while needing release, the oil-feed of release oil circuit, hydraulic coupling promotion lock piston overcomes spring force and moves to keyed end, and the effect on inclined-plane is unclamped lock sleeve, and piston rod can move freely.The utility model compact structure, easy and simple to handle, working stability is reliable, can immediately effectively lock hydraulic jack working position, meets the usage requirement of particular job occasion oil cylinder outgoing position.
Accompanying drawing explanation
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the utility model working state schematic representation;
In figure: 1-braking lock cylinder body, 2-lock sleeve, 3-lock piston, 4-cluster spring, 5-release oil circuit, 6-release end cap, 7-brakes end cap, 8-working clearance, 9-master hydraulic cylinder, 10-piston rod.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail, but never in any form the utility model is limited, and any conversion of doing based on the utility model training centre, all falls into the utility model protection domain.
As shown in Figure 1, the utility model comprises braking lock cylinder body 1, lock sleeve 2, and lock piston 3, cluster spring 4 and release oil circuit 5, the two ends of described braking lock cylinder body 1 arrange respectively release end cap 6 and braking end cap 7, and both center holes coordinate with piston rod motive sealing; Between described braking end cap 7 and locking braking lock cylinder body 1, cluster spring 4 is set; On described release end cap 6, release oil circuit 5 is set, between cluster spring 4 and release oil circuit 5, lock piston 3 is set, the moving lock sleeve 2 that is equipped with between lock piston 3 and piston rod.
Described lock sleeve 2 is pawl type locking mechanism, and its inner ring surface coordinates with piston rod 10 is moving; Its outer ring surface and lock piston 3 are slidably matched.
The angle of inclination of both working surfaces of matching of described lock sleeve 2 and lock piston 3 adapts.
The working surface that described lock piston 3 coordinates with lock sleeve 2 is plane of inclination.
Described lock piston 3 working surfaces tilt to release end, and lock piston 3 narrows to release extreme direction.
The angle of inclination of described lock piston 3 working surfaces is 1 ~ 10 °.
Between described lock piston 3 and braking lock cylinder body 1, release end cap 6 and braking end cap 7, by seal ring seal, coordinate respectively.
Described lock piston 3 middle part outer rims arrange guiding gutter, and piston middle part diameter is than the little 0.5 ~ 1mm of two ends diameter.
Between the oil outlet of described release oil circuit 5 and lock piston 3 end faces, be set the working clearance 8.
The width of described working clearance 8 is 1 ~ 5mm.
Described cluster spring 4 is Compress Spring.Described Compress Spring is leaf spring.
Described braking end cap 7 is " L " structure, and its long-armed ring coordinates with piston rod 10 slipper seals, and galianconism end coordinates with braking lock cylinder body 1 end part seal, between long-armed ring and braking lock cylinder body 1, cluster spring 4 is set.
Described lock piston 3 middle part outer rims arrange guiding gutter.
working principle of the present utility model and working procedure:
The utility model adopts mechanical-hydraulic linkage structure, when locking, utilizes mechanical force, utilizes hydraulic coupling during release, makes locking and release can realize instant conversion.In the time of need to locking, release oil circuit is with no pressure, and lock piston moves to release end under the effect of mechanical force, makes lock sleeve contraction deformation, embraces piston rod, lock piston bar position; Otherwise, while needing release, the oil-feed of release oil circuit, hydraulic coupling promotion lock piston overcomes spring force and moves to keyed end, and the effect on inclined-plane is unclamped lock sleeve, and piston rod can move freely.
During main hydraulic jack work, first the utility model is carried out to release, now hydraulic oil enters cylinder body by release hydraulic fluid port, action of hydraulic force is in the left end of clamping piston, make clamping piston overcome the mechanical force that cluster spring produces, clamping piston moves right, and lock sleeve is unclamped, piston rod can move freely, pushing mechanism motion.
When piston rod movement is behind the position needing, now discharge the pressure of release mechanism, clamping piston will be moved to the left under the promotion of cluster spring, make lock sleeve distortion, because lock sleeve adopts tin bronze casting, and be processed into similar bird claw-like, so tightly embrace piston rod, lock piston bar position after lock sleeve distortion.
Claims (10)
1. one kind is suitable for the safe locking device of hydraulic jack, comprise braking lock cylinder body (1), lock sleeve (2), lock piston (3), cluster spring (4) and release oil circuit (5), it is characterized in that: the two ends of described braking lock cylinder body (1) arrange respectively release end cap (6) and braking end cap (7), and both center holes coordinate with piston rod (10) motive sealing; Between described braking end cap (7) and braking lock cylinder body (1), cluster spring (4) is set; On described release end cap (6), release oil circuit (5) is set, between cluster spring (4) and release oil circuit (5), lock piston (3) is set, the moving lock sleeve (2) that is equipped with between lock piston (3) and piston rod (10).
2. the safe locking device that is suitable for hydraulic jack according to claim 1, is characterized in that: described lock sleeve (2) is pawl type locking mechanism, and its inner ring surface coordinates with piston rod (10) is moving; Its outer ring surface and lock piston (3) are slidably matched.
3. the safe locking device that is suitable for hydraulic jack according to claim 1 and 2, is characterized in that: the angle of inclination of both working surfaces of matching of described lock sleeve (2) and lock piston (3) adapts.
4. the safe locking device that is suitable for hydraulic jack according to claim 1 and 2, is characterized in that: the working surface that described lock piston (3) coordinates with lock sleeve (2) is plane of inclination, and its angle of inclination is 1 ~ 10 °.
5. the safe locking device that is suitable for hydraulic jack according to claim 1 and 2, is characterized in that: between described lock piston (3) and braking lock cylinder body (1), release end cap (6) and braking end cap (7), coordinate respectively by seal ring seal.
6. the safe locking device that is suitable for hydraulic jack according to claim 1 and 2, is characterized in that: described lock piston (3) middle part outer rim arranges guiding gutter, and piston middle part diameter is than the little 0.5 ~ 1mm of two ends diameter.
7. the safe locking device that is suitable for hydraulic jack according to claim 1, is characterized in that: between the oil outlet of described release oil circuit (5) and lock piston (3) end face, be set the working clearance (8).
8. according to the safe locking device that is suitable for hydraulic jack described in claim 1 or 7, it is characterized in that: between the oil outlet of described release oil circuit (5) and lock piston (3) end face, the width of working clearance (8) is 1 ~ 5mm.
9. the safe locking device that is suitable for hydraulic jack according to claim 1, is characterized in that: described cluster spring (4) is Compress Spring.
10. the safe locking device that is suitable for hydraulic jack according to claim 1, it is characterized in that: described braking end cap (7) is " L " structure, its long-armed ring coordinates with piston rod (10) slipper seal, galianconism end coordinates with braking lock cylinder body (1) end part seal, between long-armed ring and braking lock cylinder body (1), cluster spring (4) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320439444.6U CN203570753U (en) | 2013-07-23 | 2013-07-23 | Safe locking device applicable for hydraulic oil cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320439444.6U CN203570753U (en) | 2013-07-23 | 2013-07-23 | Safe locking device applicable for hydraulic oil cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203570753U true CN203570753U (en) | 2014-04-30 |
Family
ID=50538486
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320439444.6U Expired - Fee Related CN203570753U (en) | 2013-07-23 | 2013-07-23 | Safe locking device applicable for hydraulic oil cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203570753U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362896A (en) * | 2013-07-23 | 2013-10-23 | 云南兴长江实业有限公司 | Safe locking device suitable for hydraulic oil cylinder |
| CN104481968A (en) * | 2014-11-03 | 2015-04-01 | 无锡市百顺机械厂 | Tensioning device of hydraulic cylinder cover |
| CN105856123A (en) * | 2015-01-21 | 2016-08-17 | 成都飞机工业（集团）有限责任公司 | Follow-up location unit capable of being used for robot shape-adjusting |
| CN113280017A (en) * | 2021-06-23 | 2021-08-20 | 华中科技大学鄂州工业技术研究院 | Mechanical emergency push rod |
-
2013
- 2013-07-23 CN CN201320439444.6U patent/CN203570753U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103362896A (en) * | 2013-07-23 | 2013-10-23 | 云南兴长江实业有限公司 | Safe locking device suitable for hydraulic oil cylinder |
| CN103362896B (en) * | 2013-07-23 | 2016-08-24 | 云南兴长江实业有限公司 | A kind of safe locking device being suitable for hydraulic jack |
| CN104481968A (en) * | 2014-11-03 | 2015-04-01 | 无锡市百顺机械厂 | Tensioning device of hydraulic cylinder cover |
| CN104481968B (en) * | 2014-11-03 | 2017-02-15 | 李建尧 | Tensioning device of hydraulic cylinder cover |
| CN105856123A (en) * | 2015-01-21 | 2016-08-17 | 成都飞机工业（集团）有限责任公司 | Follow-up location unit capable of being used for robot shape-adjusting |
| CN113280017A (en) * | 2021-06-23 | 2021-08-20 | 华中科技大学鄂州工业技术研究院 | Mechanical emergency push rod |
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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: 20140430 Termination date: 20160723 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |