CN202755353U - Hydraulic hoist locking device - Google Patents
Hydraulic hoist locking device Download PDFInfo
- Publication number
- CN202755353U CN202755353U CN 201220371180 CN201220371180U CN202755353U CN 202755353 U CN202755353 U CN 202755353U CN 201220371180 CN201220371180 CN 201220371180 CN 201220371180 U CN201220371180 U CN 201220371180U CN 202755353 U CN202755353 U CN 202755353U
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- CN
- China
- Prior art keywords
- elastic body
- wedge
- overcoat
- locking device
- hydraulic hoist
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses a hydraulic hoist locking device and relates to a device for locking a hydraulic hoist during telescopic running. The hydraulic hoist locking device comprises a wedge elastic body comprising an intermediate elastic body, a large-end elastic body and a small-end elastic body. The large-end elastic body is provided with a large-end central hole, the small-end elastic body is provided with a small-end central hole, and the intermediate elastic body is provided with a first telescopic seam and a second telescopic seam. The first telescopic seam extends to the large-end elastic body and is communicated with the large-end central hole. The second telescopic seam extends to the small-end elastic body and is communicated with the small-end central hole. An adjustable wedge outer sleeve is arranged on one side of the wedge elastic body and comprises a wedge outer sleeve body and a plurality of plastic claws. The wedge outer sleeve body is provided with an outer thread. An unlocking hoop is arranged on the wedge elastic body and the adjustable wedge outer sleeve, and an inner thread is arranged in the unlocking hoop. The hydraulic hoist locking device can realize positioning and holding running under complex working conditions of long time and large-impact load.
Description
Technical field
The utility model relates to water conservancy hydraulic hoist industry, relates in particular to the device that hydraulic hoist is locked when operation is flexible.
Background technology
Hydraulic hoist is used for all kinds of large-scale plumbing, Hydraulic and Hydro-Power Engineering, and under the control of hydraulic system, headstock gear is done axially reciprocating, thereby the lifting that drives all kinds of large and medium-sized cast-iron lock gates and steel gate reaches the purpose of open and close.At present, Hydraulic and Hydro-Power Engineering operation presents location under long-time, the large impact load complex working condition, holds the specialty characteristics of operation.Be subjected to the impact of the composite factors such as unreasonable structure, seal fails, device design defective, existing hydraulic hoist is difficult to satisfy the needs of current engineering.Therefore, the location under the hydraulic hoist locking device that the exploitation this patent is realized,, large impact load complex working condition long-time in the Hydraulic and Hydro-Power Engineering for realizing, hold operation, have important reality and practical meaning in engineering.
Summary of the invention
The purpose of this utility model is in order to overcome the deficiencies in the prior art, location under a kind of can realization equipment long-time, large impact load complex working condition is provided, holds the hydraulic hoist locking device of operation.
The purpose of this utility model is achieved in that the hydraulic hoist locking device, the wedge elastic body that comprises hollow structure, the wedge elastic body comprises the middle elastic body of the little taper type of the large end of an end, elastic body's large end disjunctor arranges circular large end elastic body in the middle of the taper type, on the 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 the circular small end elastic body small end centre bore is set, on the elastic body at least twice the first shrinkage joint and at least twice the second shrinkage joint are set in the middle of the taper type, per pass the first shrinkage joint extends to respectively large end elastic body and upward and with large end centre bore is connected, per pass the second shrinkage joint extends to respectively the small end elastic body and upward and with the small end centre bore is connected, and per pass the first shrinkage joint on the 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 the wedge overcoat body external screw thread is set, one end of wedge overcoat body along the circumferential direction is 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 that matches with external screw thread on the wedge overcoat body is set in the release banding ring.
Elastic body's tapering is 3～8 ° in the middle of the taper type of the present utility model.
Each plastic type pawl of the present utility model respectively and the angle between the axis of wedge overcoat body be 3～8 °.
External screw thread is set on the wedge overcoat body of the present utility model is diffusion parabolical screw thread, the internal thread of release banding ring is diffusion parabolical screw thread.
During locking, with wedge elastic body, adjustable type wedge overcoat, release banding ring set on piston rod.The shrinkage joint that arranges on the wedge overcoat body forms the bent Zhang Lianjie structure that returns; has good certainly recovery elastic deformation; under the effect of Wedge structure overcoat; circumference generation elastic deformation; the physical dimension of self adaptation piston rod; good applying 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 get the interior profile of plastic type pawl structure and becomes 3～8 ° wedge gradient.The dish spring applies and radially locks pre-load, and the adjustable type wedge overcoat and the wedge elastic body that drive to be shaped are drawn close, and forms 20～200 times circumference tightening force radially, thereby reaches the locking target.
During 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 utility model is fit to water conservancy project hydraulic hoist fixed point, holds the efficient apparatus of locking, use the force-bearing situation that elastomeric contact of wedge improves locking device, guarantee effectively that the water conservancy project hydraulic hoist is long-time, fixed point under the 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.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
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 the utility model use occasion.
Among the figure, elastic body in the middle of the 1 wedge elastic body, 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 utility model comprises the wedge elastic body 1 of hollow structure, wedge elastic body 1 comprises the middle elastic body 1-1 of the little taper type of the large end of an end, the tapering of elastic body 1-1 is 3～8 ° in the middle of the taper type, the large end disjunctor of elastic body 1-1 arranges circular large end elastic body 1-2 in the middle of the taper type, on the 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 the circular small end elastic body 1-4 small end centre bore 1-5 is set, on the 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 in the middle of the taper type, per pass the first shrinkage joint 1-6 extends to respectively on the 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 the small end elastic body 1-5 and with small end centre bore 1-6 and is connected, and per pass the first shrinkage joint 1-6 on the 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 the wedge overcoat body 2-2, the end of wedge overcoat body 2-2 along the circumferential direction is fixedly connected with several plastic type pawls 2-3, each plastic type pawl 2-3 respectively and the angle between the axis of wedge overcoat body 2-2 be 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.Be nested with same release banding ring 3 on wedge elastic body 1 and the adjustable type wedge overcoat 2, the diffusion parabolical internal thread 3-1 that the 3 interior settings of release banding ring match with external screw thread 2-1 on the 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 cylinder barrel 5 piston rod 4 outward.
Claims (4)
1. hydraulic hoist locking device, it is characterized in that: the wedge elastic body that comprises hollow structure, the wedge elastic body comprises the middle elastic body of the little taper type of the large end of an end, elastic body's large end disjunctor arranges circular large end elastic body in the middle of the taper type, on the 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 the circular small end elastic body small end centre bore is set, on the elastic body at least twice the first shrinkage joint and at least twice the second shrinkage joint are set in the middle of the taper type, per pass the first shrinkage joint extends to respectively large end elastic body and upward and with large end centre bore is connected, per pass the second shrinkage joint extends to respectively the small end elastic body and upward and with the small end centre bore is connected, and per pass the first shrinkage joint on the 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 the wedge overcoat body external screw thread is set, one end of wedge overcoat body along the circumferential direction is 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 that matches with external screw thread on the wedge overcoat body is set in the release banding ring.
2. hydraulic hoist locking device according to claim 1 is characterized in that: elastic body's tapering is 3～8 ° in the middle of the described taper type.
3. hydraulic hoist locking device according to claim 1 is characterized in that: described each plastic type pawl respectively and the angle between the axis of wedge overcoat body be 3～8 °.
4. hydraulic hoist locking device according to claim 1 is characterized in that: external screw thread is set on the described wedge overcoat body is diffusion parabolical screw thread, the internal thread of release banding ring is diffusion parabolical screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371180 CN202755353U (en) | 2012-07-30 | 2012-07-30 | Hydraulic hoist locking device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220371180 CN202755353U (en) | 2012-07-30 | 2012-07-30 | Hydraulic hoist locking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202755353U true CN202755353U (en) | 2013-02-27 |
Family
ID=47734542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220371180 Withdrawn - After Issue CN202755353U (en) | 2012-07-30 | 2012-07-30 | Hydraulic hoist locking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202755353U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747712A (en) * | 2012-07-30 | 2012-10-24 | 扬州市飞龙气动液压设备有限公司 | Lock device of hydraulic hoist |
| CN109083103A (en) * | 2018-07-27 | 2018-12-25 | 河海大学 | A kind of hydraulic steel gate safety monitoring information storage bin with armouring protection |
-
2012
- 2012-07-30 CN CN 201220371180 patent/CN202755353U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102747712A (en) * | 2012-07-30 | 2012-10-24 | 扬州市飞龙气动液压设备有限公司 | Lock device of hydraulic hoist |
| CN102747712B (en) * | 2012-07-30 | 2014-07-02 | 扬州市飞龙气动液压设备有限公司 | Lock device of hydraulic hoist |
| CN109083103A (en) * | 2018-07-27 | 2018-12-25 | 河海大学 | A kind of hydraulic steel gate safety monitoring information storage bin with armouring protection |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130227 Effective date of abandoning: 20140702 |
|
| RGAV | Abandon patent right to avoid regrant |