CN211687927U - Crane jib mounting and dismounting special tool capable of automatically hooking and unhooking - Google Patents
Crane jib mounting and dismounting special tool capable of automatically hooking and unhooking Download PDFInfo
- Publication number
- CN211687927U CN211687927U CN201922351672.8U CN201922351672U CN211687927U CN 211687927 U CN211687927 U CN 211687927U CN 201922351672 U CN201922351672 U CN 201922351672U CN 211687927 U CN211687927 U CN 211687927U
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- lifting hook
- hook
- hoist
- spring
- unhooking
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Abstract
The utility model relates to a specialized tool is torn open in hoist davit ann that can hang unhook automatically, including square frame, a pair of skeleton both ends that the frame is relative all can rotate the articulated lifting hook that is connected with the hook-type relatively, the upper end of lifting hook also is rotatable articulated connection with the hoist and mount rope of hoist, the upper end of lifting hook still is connected with the spring, the other end of spring is fixed in just be located on the fixed skeleton of lifting hook the lifting hook is inboard. The utility model discloses simple structure, safe and reliable can realize hanging automatically and plucking the lifting hook.
Description
Technical Field
The utility model belongs to the technical field of the hoist hoists, concretely relates to specialized tool is installed and torn open to hoist davit that can hang unhook automatically.
Background
The traditional crane boom disassembly and assembly mode mainly adopts a rope and lifting lug mode to fix the boom, and the lifting hook completes the lifting installation mode. The boom hoisting mode is large in workload and long in time consumption, personnel are required to climb to the top of the boom, then the rope is hung on the lifting lug, no safety protection device is arranged at the top of the boom, and the risk of climbing up is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a simple structure, safe and reliable's hoist davit ann who can hang unhook automatically tears specialized tool open.
For solving the technical problem, the utility model provides a pair of specialized tool is torn open in hoist davit ann that can hang unhook automatically, including square frame, a pair of skeleton both ends that the frame is relative all can rotate the articulated lifting hook that is connected with the hook-type relatively, the upper end of lifting hook also is rotatable articulated with the hoist and mount rope of hoist and is connected, the upper end of lifting hook still is connected with the spring, the other end of spring is fixed in just be located on the fixed skeleton of lifting hook the lifting hook is inboard.
Preferably, at least one pair of opposite frameworks of the framework is provided with a hydraulic oil cylinder with adjustable length.
Preferably, the lifting hook is connected with the framework and the hoisting rope through shaft pins.
The beneficial effects of the utility model are that:
1. the utility model discloses all can rotate the articulated lifting hook that is connected with the hook-type relatively at a pair of skeleton both ends that the frame is relative, the upper end of lifting hook also is rotatable articulated with the hoist and mount rope of hoist and is connected, the upper end of lifting hook still is connected with the spring, the other end of spring is fixed in just be located on the fixed skeleton of lifting hook the lifting hook is inboard. When the hoisting operation is not carried out, the spring is in an unstressed state, the length of the spring is shortest, and the lifting hook is in an outward warping state under the action of the tensile force of the spring; during hoisting operation, as the stress of the hoisting rope is increased, the hoisting rope is hung on the crane boom to be stressed through the lifting hook, the spring is gradually stressed and elongated, the lifting hook is changed into a vertical state from an outward warping state and is completely hung on the crane boom; after the hoisting operation is finished, the hook is loosened through the hoisting rope, the spring is stressed to be reduced and gradually retracts, so that the hoisting hook is automatically changed from a vertical state to an outward warping state, and finally leaves the crane jib. The process can realize automatic hanging and picking of the lifting hook on the crane jib, manual climbing to the crane jib is not needed for hanging and picking, and the device is simple in structure, safe and reliable.
2. The utility model discloses be equipped with length-adjustable's hydraulic cylinder on relative skeleton, can adjust the use according to the different davit widths of different cranes, the commonality is good.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and embodiments.
Fig. 1 is the structure schematic diagram of the utility model during hoisting operation.
Detailed Description
As shown in fig. 1, a special tool for installing and detaching a crane boom capable of automatically hooking and unhooking comprises a square frame 1, two ends of a pair of opposite frameworks 2 of the frame 1 are rotatably and hingedly connected with hooks 3 opposite in hook shape, the upper ends of the hooks 3 are also rotatably and hingedly connected with a hoisting rope 4 of a crane, the upper ends of the hooks 3 are also connected with springs 4, and the other ends of the springs 4 are fixed on the frameworks 2 fixed by the hooks 3 and are positioned on the inner sides of the hooks 3. The lifting hook 3 is connected with the framework 2 and the hoisting rope 4 through shaft pins 5. At least one pair of opposite frameworks 2 of the framework 1 is provided with a hydraulic oil cylinder 6 with adjustable length.
When the hoisting operation is not carried out, the spring 4 is in an unstressed state, the length of the spring is shortest, and the lifting hook 3 is in an outward warping state under the action of the tensile force of the spring 4; during hoisting operation, firstly, the length of the hydraulic oil cylinder 6 is adjusted according to the width of a boom of a crane, as the stress of the hoisting rope 4 is increased, the hoisting rope is hung on the boom 7 of the crane to be stressed through the lifting hook 3, the spring 4 is gradually stressed to be elongated, the lifting hook 3 is changed into a vertical state from an outward warping state and is completely hung on the boom 7 of the crane; after the hoisting operation is finished, the hook is released through the hoisting rope 4, the spring 4 is gradually retracted after the stress is reduced, so that the hoisting hook 3 is automatically changed from a vertical state to an outward warping state, and finally leaves the crane jib 7. The process can realize automatic hanging and picking of the lifting hook on the crane jib, manual climbing to the crane jib is not needed for hanging and picking, and the device is simple in structure, safe and reliable.
The above description is illustrative and not restrictive. Many modifications and variations of the present invention will be apparent to those skilled in the art in light of the above teachings, which will fall within the spirit and scope of the invention.
Claims (3)
1. The utility model provides a but automatic hooking's hoist davit ann tears specialized tool open, its characterized in that, includes square frame, a pair of skeleton both ends that the frame is relative all can rotate the articulated hook that is connected with hook-shaped relative lifting hook, the upper end of lifting hook also is rotatable articulated connection with the hoist and mount rope of hoist, the upper end of lifting hook still is connected with the spring, the other end of spring is fixed in just be located on the fixed skeleton of lifting hook the lifting hook is inboard.
2. The special tool for automatically hooking and unhooking the crane jib as claimed in claim 1 wherein at least one pair of opposing frames of said frame are provided with hydraulic cylinders having adjustable length.
3. The special tool for mounting and dismounting the crane jib capable of automatically hooking and unhooking according to claim 1, wherein the lifting hook is connected with the framework and the lifting rope through shaft pins.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922351672.8U CN211687927U (en) | 2019-12-24 | 2019-12-24 | Crane jib mounting and dismounting special tool capable of automatically hooking and unhooking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922351672.8U CN211687927U (en) | 2019-12-24 | 2019-12-24 | Crane jib mounting and dismounting special tool capable of automatically hooking and unhooking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211687927U true CN211687927U (en) | 2020-10-16 |
Family
ID=72794084
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922351672.8U Active CN211687927U (en) | 2019-12-24 | 2019-12-24 | Crane jib mounting and dismounting special tool capable of automatically hooking and unhooking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211687927U (en) |
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2019
- 2019-12-24 CN CN201922351672.8U patent/CN211687927U/en active Active
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