Lifting hook maintaining structure, crane and lifting hook fixing method

Abstract

The invention discloses a lifting hook maintaining structure, a crane and a lifting hook fixing method and relates to the field of engineering machines. By the adoption of the lifting hook maintaining structure, the crane and the lifting hook fixing method, the lifting efficiency of the crane is improved, and the lifting cost is reduced. The lifting hook maintaining structure comprises an arm frame, an arm head, a lifting hook and a lifting hook maintaining assembly, wherein the arm frame is rotatably connected with the arm head. When the arm head rotates to the position above the arm frame, the lifting hook is fixed by the lifting hook maintaining assembly. In this way, by the adoption of the technical scheme, in the process that the crane is transferred to another place after lifting is completed, the lifting hook can be automatically and stably kept above the arm frame, the lifting hook does not need to be dismantled, a steel wire rope does not need to be taken up, the crane can be transferred to another placed by carrying the lifting hook, and the lifting time is shortened.

Description

technical field [0001] The invention relates to the field of engineering machinery, in particular to a hook holding structure, a crane and a hook fixing method. Background technique [0002] As a kind of lifting machinery commonly used in construction, industry and other fields, cranes can realize a series of complex mechanism movements, so as to realize the height and range required for actual lifting, the transformation between working conditions and the smooth disassembly and assembly of the crane itself . The hook is a common part of the crane. The heavy objects are hung on the hook, and the vertical lifting and horizontal handling can be realized with the movement of the crane. [0003] Crane: a multi-action hoisting machine that lifts vertically and transports heavy objects horizontally within a certain range. [0004] Hook: It is a kind of spreader in lifting machinery. The hook is often suspended on the wire rope of the hoisting mechanism by means of a pulley bloc...

AI Technical Summary

Problems solved by technology

Time consuming removal and installation of hooks and associated wire rope retraction and winding operations

[0010] The inventors have found that there are at least the following problems in the prior art: in the prior art, hooks of 100t or more have the characteristics of heavy weight, large volume, and time-consuming disassembly and assembly.

When the crane is transferred, the hook needs to be disassembled and transported separately. The crane user must spend a long time to complete the disassembly and installation of the hook, as well as the retraction and winding of the related wire rope, thereby increasing the hoisting time and restricting the hoisting speed. , increase the lifting cost

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