A fall prevention device for a trolley for a tower crane

Abstract

The invention discloses a trolley anti-falling device for a tower crane. The device comprises a supporting frame, a suspension arm and a balance block. A cab is installed at the top end of the supporting frame, a first hinge shaft is hinged to the left side of the cab, a shaft sleeve is fixedly connected with the left side of the first hinge shaft, a hydraulic telescopic rod is arranged at the topend of the shaft sleeve, a second hinge shaft is hinged to the top end of the hydraulic telescopic rod, a connection block is fixed to the outer side of the second hinge shaft, an anti-falling trolley is welded to the top end of the connection block, a lifting hook is arranged at the bottom end of suspension arm, a connection rope is installed at the top end of the suspension arm, the bottom endof the connection rope is connected with a supporting fame, and the bottom end of the balance block is installed on the right side of the suspension arm. A damping device is arranged, swing of the trolley can be reduced when the trolley is affected by wind, the hydraulic telescopic rod, the first hinge shaft and the second hinge are arranged to be used in cooperation so as to share stress of the trolley, and the anti-falling effect is achieved.

Description

technical field [0001] The invention relates to the field of tower cranes, in particular to a trolley anti-falling device for tower cranes. Background technique [0002] Tower crane (abbreviated as tower crane in this application) is a common lifting equipment, which has the advantages of large working space, etc., and is widely used in vertical and horizontal transportation of building construction materials and installation of building components. The tower crane usually includes a tower frame, a boom, a tower crane trolley and a spreader. The tower is set up vertically. One end of the boom is fixed on the upper end of the tower. The spreader is connected to the tower crane trolley. Driven by the trolley driving device such as the reel of the web mechanism, it can reciprocate along the boom, and the boom can rotate around the center of rotation. During the reciprocating movement of the tower crane trolley on the boom, in order to make the tower crane trolley stop at the d...

AI Technical Summary

Problems solved by technology

[0004] The object of the present invention is to provide a trolley anti-falling device for tower cranes, to solve the problems in the above-mentioned background technology that the trolley is easily affected by high-altitude wind speed, the connected rope is easy to break, and the trolley has limited load-bearing.

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