Height limiter with protection structure

Abstract

The invention discloses a height limiter with a protection structure. The height limiter comprises a limiter body, an end cover structure and a crane assembly. A worm penetrates through the right sideof a lower shell, a partition plate is arranged in the lower shell, memory cams are arranged at the front end of the upper portion of the partition plate, and the end cover structure is arranged on the right side of the limiter body. A connecting shaft is arranged in a protective shell, an input shaft on the left side of the connecting shaft is connected with a connecting piece through a fixing pin, a speed reducer is arranged on the left side of the crane assembly, and the speed reducer is connected with a shaft body in the crane assembly. The height limiter with the protection structure isprovided with buffer layers and anti-collision layers which are arranged in an upper shell and the lower shell respectively, parts in the limiter body can be protected conveniently when the limiter body is impacted, the anti-collision layers made of steel can play an effective protection role, the buffer layers buffer the impact, the parts in the height limiter are further protected, and the service life of the height limiter with the protection structure is prolonged.

Description

technical field [0001] The invention relates to the technical field of height limiters, in particular to a height limiter with a protective structure. Background technique [0002] Tower cranes are commonly used lifting equipment on construction sites at present. The height of tower cranes is usually high. If the lifting structure is too high and the wire rope used for lifting breaks, it may cause the hook or the lifting object to fall. Falling may cause danger and cause losses to the people and objects below. In order to avoid similar accidents, people have invented a height limit device to prevent the tower crane from colliding with the tower crane due to human manipulation errors. Damage to the jib structure of the crane will lead to dangerous situations such as the breaking of the lifting wire rope and the fall of the wire rope on the drum, and the wire rope on the drum is completely loose or even wound on the drum in the opposite direction, which poses a safety hazard t...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a height limiter with a protective structure, to solve the problem that the existing height limiter proposed in the above-mentioned background technology has insufficient anti-collision performance, resulting in a low safety factor, and the height limiter Crane safety accidents caused by device failure are still common problems

Images