Crane protective device and crane

Abstract

This invention provides a crane protective device and a crane. The crane protective device comprises a telescopic mechanism and a protective block. One end of the telescopic mechanism is arranged at a frame of the crane; the other end of the telescopic mechanism is connected with the protective block; and the telescopic mechanism can drive the protective block to move, so that the protective block is contacted with the side surface of a heavy object lifted by the crane. The technical scheme provided by the invention is that the protective block is driven to move through the telescopic mechanism and propped against the heavy object to prevent the heavy object from swinging forward and backward in the driving direction of a rough-terrain crane and avoid the impact wear of the frame due to the heavy object, so as to enhance the structural stability of the frame and the operation stability of the crane, and reduce impact and fatigue damage of a wire rope and a pulley resulted from the swing of the heavy object simultaneously to prolong the service life of the wire rope and the pulley.

Description

technical field [0001] The invention relates to the field of hoisting equipment, more specifically, to a crane protection device and a crane. Background technique [0002] The rough-terrain crane has the function of hoisting and traveling, that is, the crane can only need tire support to drive the hoisting load, so as to move the hoisting weight to the designated position. [0003] However, when the rough-terrain crane is driving with a load, there are the following problems: [0004] 1. For the sake of safety, the working range of the boom is generally small, and the distance between the heavy object and the frame is relatively close. During the running of the crane, the heavy object will swing back and forth with the wire rope. When the heavy object swings too much, the heavy object will Objects may hit the frame and cause damage to the frame; [0005] 2. In the process of swinging back and forth with the wire rope, the heavy object will cause impact and fatigue damage t...

AI Technical Summary

Problems solved by technology

[0004] 1. For the sake of safety, the working range of the boom is generally small, and the distance between the heavy object and the frame is relatively close. During the running of the crane, the heavy object will swing back and forth with the wire rope. When the heavy object swings too much, the heavy object will Objects may hit the frame and cause damage to the frame;

[0005] 2. In the process of swinging back and forth with the wire rope, the heavy object will cause impact and fatigue damage to the wire rope and the pulley, which will directly lead to the breakage of the wire rope and the damage of the pulley. In severe cases, it will cause a safety accident

Images