An anti-overload device for hoisting wheels of building pendants

Abstract

The invention discloses an overload preventing device for a building hoisting tower winding wheel. The overload preventing device comprises a winding wheel shell; the interior of the winding wheel shell is of a hollow structure, and the center of the interior of the winding wheel shell is provided with a plurality of sets of semicircular groove structures; a rotary block is placed in the winding wheel shell and is internally provided with a through hole structure; the through hole structure comprises a longitudinal through hole structure body and a transverse through hole structure body communicating with the longitudinal through hole structure body; longitudinal rod bodies and transverse rod bodies are placed in the longitudinal through hole structure body and the transverse through hole structure body; and the tops of the longitudinal rod bodies are each of a semicircular structure and are inserted into the semicircular groove structures. According to the overload preventing device for the building hoisting tower winding wheel, the magnitude of electric currents in a coil is controlled, accordingly, the magnitude of the effective support dynamics applied to the winding wheel shell by the longitudinal rod bodies is further controlled, and the controllability is achieved; in addition, as the magnitude of the electric currents is easy to control, so that the controllable performance of the overload preventing device is high; and when the overload phenomenon occurs, the device can find and stop the overload phenomenon in time, and thus, the phenomenon that a motor is burned out is prevented.

Description

technical field [0001] The invention relates to the technical field of construction machinery, in particular to an overload prevention device 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 object of the present invention is to provide an anti-overload device for the hoisting sheave of a construction pendant tower, so as...

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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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