CN102747712B - Lock device of hydraulic hoist - Google Patents
Lock device of hydraulic hoist Download PDFInfo
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- CN102747712B CN102747712B CN201210266895.4A CN201210266895A CN102747712B CN 102747712 B CN102747712 B CN 102747712B CN 201210266895 A CN201210266895 A CN 201210266895A CN 102747712 B CN102747712 B CN 102747712B
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- elastic body
- wedge
- overcoat
- hydraulic hoist
- shrinkage joint
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Abstract
The invention relates to a lock device of a hydraulic hoist, which is used for locking a hydraulic hoist during operation and expansion. The lock device comprises a wedge elastic body which comprises a middle elastic body, a large-end elastic body and a small-end elastic body, wherein the large-end elastic body is provided with a large-end centre hole; the small-end elastic body is provided with a small-end centre hole; the middle elastic body is provided with a first expansion joint and a second expansion joint; the first expansion joint extends to the large-end elastic body and is communicated with the large-end centre hole; the second expansion joint extends to the small-end elastic body and is communicated with the small-end centre hole; one side of the wedge elastic body is provided with an adjustable wedge sleeve; the adjustable wedge sleeve comprises a wedge sleeve body and a plurality of plastic claws; the wedge sleeve body is provided with an external thread; a same unlocking clamp ring is sleeved on the wedge elastic body and the adjustable wedge sleeve; and the unlocking clamp ring is internally provided with an internal thread. According to the lock device of the hydraulic hoist, the positioning and stable operation of devices under complex working condition of long-time and large impact load is realized.
Description
Technical field
The present invention relates to water conservancy hydraulic hoist industry, relate in particular to the device that hydraulic hoist is locked in the time that operation is flexible.
Background technology
Hydraulic hoist is for all kinds of large-scale plumbing, Hydraulic and Hydro-Power Engineering, and under the control of hydraulic system, headstock gear does axially reciprocating, thereby drives the lifting of all kinds of large and medium-sized cast-iron lock gates and steel gate to reach the object of open and close.At present, Hydraulic and Hydro-Power Engineering operation presents location under long-time, large impact load complex working condition, holds the specialty characteristics of operation.Be subject to the impact of the composite factors such as unreasonable structure, seal fails, equipment design defect, existing hydraulic hoist is difficult to meet the needs of current engineering.Therefore, the hydraulic hoist locking device that exploitation this patent is realized, location under, large impact load complex working condition long-time for realizing in Hydraulic and Hydro-Power Engineering, holds operation, has important reality and practical meaning in engineering.
Summary of the invention
The object of the invention is in order to overcome the deficiencies in the prior art, provide a kind of and can realize that equipment is long-time, location under large impact load complex working condition, hold the hydraulic hoist locking device of operation.
The object of the present invention is achieved like this: hydraulic hoist locking device, comprise the wedge elastic body of hollow structure, wedge elastic body comprises the middle elastic body of the little taper type in large one end, one end, in the middle of taper type, elastic body's large end disjunctor arranges circular large end elastic body, on circular large end elastic body, large end centre bore is set, middle elastic body's small end disjunctor arranges circular small end elastic body, on circular small end elastic body, small end centre bore is set, in the middle of taper type, on elastic body, at least twice the first shrinkage joint and at least twice the second shrinkage joint are set, per pass the first shrinkage joint extends to respectively large end elastic body above and is connected with large end centre bore, per pass the second shrinkage joint extends to respectively small end elastic body above and is connected with small end centre bore, per pass the first shrinkage joint on middle elastic body is separately positioned between adjacent twice the second shrinkage joint, the elastomeric side of described wedge arranges adjustable type wedge overcoat, adjustable type wedge overcoat comprises wedge overcoat body, on wedge overcoat body, external screw thread is set, one end of wedge overcoat body is along the circumferential direction fixedly connected with several plastic type pawls, each plastic type pawl is nested with in the elastomeric periphery of described wedge, and the elastomeric small end of wedge is towards wedge overcoat body, described wedge elastic body and adjustable type wedge put outward and are nested with same release banding ring, and the internal thread matching with the external screw thread on wedge overcoat body is set in release banding ring.
In the middle of taper type of the present invention, elastic body's tapering is 3～8 °.
The angle of each plastic type pawl of the present invention respectively and between the axis of wedge overcoat body is 3～8 °.
External screw thread is set for diffusion parabolical screw thread on wedge overcoat body of the present invention, the internal thread of release banding ring is diffusion parabolical screw thread.
When locking, by wedge elastic body, adjustable type wedge overcoat, release banding ring set on piston rod.The shrinkage joint arranging on wedge overcoat body forms the bent Zhang Lianjie structure that returns; there is good recovery elastic deformation certainly; under the effect of Wedge structure overcoat; circumference generation elastic deformation; the physical dimension of self adaptation piston rod; good laminating piston rod outer wall, enlarge active surface, thus the surface of effectively protecting piston rod is not by the pressure wound of deteriorating.Hydraulic system drives release banding ring, and its distortion screw thread along adjustable type wedge overcoat is screwed, and after putting in place, makes adjustable type wedge overcoat obtain profile in plastic type pawl structure and becomes the wedge gradient of 3～8 °.Dish spring applies and radially locks pre-load, drives the adjustable type wedge overcoat and the wedge elastic body that are shaped to draw close, and forms the radially tightening force of circumference of 20～200 times, thereby reaches locking target.
When release, utilize distortion screw thread labour-saving design feature, by the counteragent of release banding ring, diastole plastic type pawl structure, thus change the loaded structure form of wedge, shifted to self-locking state not by self-locking state, thereby realize the release of locking device.Can effectively change the situation of the rear release difficulty of locking.
The present invention is applicable to water conservancy project hydraulic hoist fixed point, holds the efficient apparatus of locking, elastomeric contact of application wedge improves the force-bearing situation of locking device, effectively guarantee that water conservancy project hydraulic hoist is long-time, fixed point under large impact load complex working condition, hold operation, reach controllably locking and the self-healing goal in research of release, thereby conscientiously guarantee safety, the reliability service of Hydraulic and Hydro-Power Engineering.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the elastomeric structural representation of wedge.
Fig. 3 is the right view of Fig. 2.
Fig. 4 is the structural representation of use occasion of the present invention.
In figure, 1 wedge elastic body, elastic body in the middle of 1-1, the large end elastic body of 1-2, the large end centre bore of 1-3,1-4 small end elastic body, 1-5 small end centre bore, 1-6 the first shrinkage joint, 1-7 the second shrinkage joint, 2 adjustable type wedge overcoats, 2-1 external screw thread, 2-2 wedge overcoat body, 2-3 plastic type pawl, 3 release banding rings, 3-1 internal thread, 4 piston rods, 5 cylinder barrels.
The specific embodiment
As Figure 1-3, the present invention includes the wedge elastic body 1 of hollow structure, wedge elastic body 1 comprises the middle elastic body 1-1 of the little taper type in large one end, one end, in the middle of taper type, the tapering of elastic body 1-1 is 3～8 °, in the middle of taper type, the large end disjunctor of elastic body 1-1 arranges circular large end elastic body 1-2, on circular large end elastic body 1-2, large end centre bore 1-3 is set, the small end disjunctor of middle elastic body 1-1 arranges circular small end elastic body 1-4, on circular small end elastic body 1-4, small end centre bore 1-5 is set, in the middle of taper type, on elastic body 1-1, at least twice the first shrinkage joint 1-6 and at least twice the second shrinkage joint 1-7 are set, per pass the first shrinkage joint 1-6 extends to respectively on large end elastic body 1-2 and with large end centre bore 1-3 and is connected, per pass the second shrinkage joint 1-7 extends to respectively on small end elastic body 1-5 and with small end centre bore 1-6 and is connected, per pass the first shrinkage joint 1-6 on middle elastic body 1-1 is separately positioned between adjacent twice the second shrinkage joint 1-7.
One side of wedge elastic body 1 arranges adjustable type wedge overcoat 2, adjustable type wedge overcoat 2 comprises wedge overcoat body 2-2, diffusion parabolical external screw thread 2-1 is set on wedge overcoat body 2-2, one end of wedge overcoat body 2-2 is along the circumferential direction fixedly connected with several plastic type pawls 2-3, the angle of each plastic type pawl 2-3 respectively and between the axis of wedge overcoat body 2-2 is 3～5 °, each plastic type pawl 2-3 is nested with the periphery at wedge elastic body 1, and the small end of wedge elastic body 1 is towards wedge overcoat body 2-2.On wedge elastic body 1 and adjustable type wedge overcoat 2, be nested with same release banding ring 3, the diffusion parabolical internal thread 3-1 that the 3 interior settings of release banding ring match with the external screw thread 2-1 on wedge overcoat body 2, the diffusion parabolical internal thread 3-1 of release banding ring 3 is threaded with the diffusion parabolical external screw thread 2-1 of adjustable type wedge overcoat 2.
As shown in Figure 4, wedge elastic body 1, adjustable type wedge overcoat 2, release banding ring 3 are enclosed within on the piston rod 4 outside cylinder barrel 5.
Claims (4)
1. hydraulic hoist locking device, it is characterized in that: the wedge elastic body that comprises hollow structure, wedge elastic body comprises the middle elastic body of the little taper type in large one end, one end, in the middle of taper type, elastic body's large end disjunctor arranges circular large end elastic body, on circular large end elastic body, large end centre bore is set, middle elastic body's small end disjunctor arranges circular small end elastic body, on circular small end elastic body, small end centre bore is set, in the middle of taper type, on elastic body, at least twice the first shrinkage joint and at least twice the second shrinkage joint are set, per pass the first shrinkage joint extends to respectively large end elastic body above and is connected with large end centre bore, per pass the second shrinkage joint extends to respectively small end elastic body above and is connected with small end centre bore, per pass the first shrinkage joint on middle elastic body is separately positioned between adjacent twice the second shrinkage joint, the elastomeric side of described wedge arranges adjustable type wedge overcoat, adjustable type wedge overcoat comprises wedge overcoat body, on wedge overcoat body, external screw thread is set, one end of wedge overcoat body is along the circumferential direction fixedly connected with several plastic type pawls, each plastic type pawl is nested with in the elastomeric periphery of described wedge, and the elastomeric small end of wedge is towards wedge overcoat body, described wedge elastic body and adjustable type wedge put outward and are nested with same release banding ring, and the internal thread matching with the external screw thread on wedge overcoat body is set in release banding ring.
2. hydraulic hoist locking device according to claim 1, is characterized in that: in the middle of described taper type, elastic body's tapering is 3～8 °.
3. hydraulic hoist locking device according to claim 1, is characterized in that: the angle of described each plastic type pawl respectively and between the axis of wedge overcoat body is 3～8 °.
4. hydraulic hoist locking device according to claim 1, is characterized in that: external screw thread is set for diffusion parabolical screw thread on described wedge overcoat body, the internal thread of release banding ring is diffusion parabolical screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266895.4A CN102747712B (en) | 2012-07-30 | 2012-07-30 | Lock device of hydraulic hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210266895.4A CN102747712B (en) | 2012-07-30 | 2012-07-30 | Lock device of hydraulic hoist |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102747712A CN102747712A (en) | 2012-10-24 |
| CN102747712B true CN102747712B (en) | 2014-07-02 |
Family
ID=47028177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210266895.4A Active CN102747712B (en) | 2012-07-30 | 2012-07-30 | Lock device of hydraulic hoist |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102747712B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2640659B2 (en) * | 1987-11-10 | 1997-08-13 | 株式会社表鉄工所 | Water gate switchgear |
| CN101619568B (en) * | 2009-07-14 | 2011-02-16 | 扬州楚门机电设备制造有限公司 | Locking device of steel gate |
| CN202131586U (en) * | 2011-06-23 | 2012-02-01 | 潘井仁 | Hydraulic locking system of steel dam gate |
| CN202755353U (en) * | 2012-07-30 | 2013-02-27 | 扬州市飞龙气动液压设备有限公司 | Hydraulic hoist locking device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01223210A (en) * | 1988-03-02 | 1989-09-06 | Mizota Kogyo Kk | Gate open/close device |
-
2012
- 2012-07-30 CN CN201210266895.4A patent/CN102747712B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2640659B2 (en) * | 1987-11-10 | 1997-08-13 | 株式会社表鉄工所 | Water gate switchgear |
| CN101619568B (en) * | 2009-07-14 | 2011-02-16 | 扬州楚门机电设备制造有限公司 | Locking device of steel gate |
| CN202131586U (en) * | 2011-06-23 | 2012-02-01 | 潘井仁 | Hydraulic locking system of steel dam gate |
| CN202755353U (en) * | 2012-07-30 | 2013-02-27 | 扬州市飞龙气动液压设备有限公司 | Hydraulic hoist locking device |
Non-Patent Citations (1)
| Title |
|---|
| JP平1-223210A 1989.09.06 |
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| Publication number | Publication date |
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| CN102747712A (en) | 2012-10-24 |
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