A safety anti-overload structure for winches of building pendants

Abstract

The invention discloses a safety overload preventing structure used for a building hoisting tower winching wheel. The safety overload preventing structure comprises a winching wheel shell. The interior of the winching wheel shell is of a hollow structure, and multiple sets of semicircular groove structures are arranged in the center in the winching wheel shell. A set of rotation blocks are placed in the winching wheel shell. Through hole structures are arranged in the rotation blocks and include longitudinal through hole structure bodies and transverse through hole structure bodies communicating with the longitudinal through hole structure bodies. A longitudinal rod and a transverse rod are placed in each longitudinal through hole structure body and each transverse through hole structure body correspondingly. The tops of the longitudinal rods are of a semicircular structure and are inserted in the semicircular groove structures. The effective supporting strength of the longitudinal rods for the winching wheel shell is controlled by controlling the value of current in a coil, and therefore controllability is achieved; due to the fact that the current value is easy to control, the controllable performance of the safety overload preventing structure is high, when the overload phenomenon occurs, the device can find the overload phenomenon in time and stop the overload phenomenon, and therefore the phenomenon of motor burnout is prevented.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to a safety anti-overload structure for hoisting wheels of construction pendants. Background technique [0002] At present, in construction sites, especially large-scale construction sites, there is no shortage of construction pendants. The main function of construction pendants is to transport some equipment needed for construction at high altitudes, which is convenient and fast. When working, the weight of the lifting parts is heavy due to the inability of the staff to weigh them correctly. Once such a heavy part is transported to the sky, it will be very dangerous if it is overloaded at this time. In addition, it will also be caused by overloading. The motor burns out and has certain limitations. Contents of the invention [0003] The purpose of the present invention is to provide a safe anti-overload structure for the hoisting sheave of a construction pendant, ...

AI Technical Summary

Problems solved by technology

[0002] At present, in construction sites, especially large-scale construction sites, there is no shortage of construction pendants. The main function of construction pendants is to transport some equipment needed for construction at high altitudes, which is convenient and fast. When working, the weight of the lifting parts is heavy due to the inability of the staff to weigh them correctly. Once such a heavy part is transported to the sky, it will be very dangerous if it is overloaded at this time. In addition, it will also be caused by overloading. The motor burns out, with certain limitations

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