Elevator traction sheave mould

Abstract

The invention relates to an elevator traction sheave mould. A traction sheave comprises a tabular body and a continuous wheel rim arranged around an edge of the body, wherein the wheel rim is vertical to a plane of the body; an axial concentric wheel cylinder is arranged in the center of the body; and the mould comprises an upper steel mould and a lower steel mould for molding an outer surface of the traction sheave, and a concave sand mould for molding an upper end face and a lower end face of the traction sheave. The elevator traction sheave mould is characterized in that a columnar inner bore sand mould for forming an inner cavity of the wheel cylinder is arranged between the upper steel mould and the lower steel mould; the upper steel mould, the lower steel mould, the concave sand mould and the inner bore sand mould enclose to form a traction sheave molding cavity; a casting liquor pouring channel is arranged in the lower steel mould; and the channel is communicated with the molding cavity and a mould outer casting liquor storage tank. The elevator traction sheave mould is provided with a bottom pouring channel structure so as to facilitate casting liquor to flow into the mould molding cavity smoothly and uniformly, and the casting quality is improved. A fixed nut in threaded connection is arranged on the upper end of the inner bore sand mould, so that an axial position of the inner bore sand mould is favored to be fixed, and the fixed nut can also be unscrewed conveniently so as to beneficial to demoulding.

Description

technical field [0001] The invention relates to a mold for processing elevator transmission parts, in particular to a mold for processing elevator traction sheaves. Background technique [0002] The power equipment of the elevator is mainly a traction machine, which specifically includes an electric motor, a brake, a coupling, a reduction box, a traction wheel and a frame. Among them, the traction sheave is also called the traction sheave or the driving sheave. It is the device for the elevator to transmit the traction power. on axis. At present, a sprue is usually provided on the upper end of the traction sheave mold, and the casting solution is injected from the upper end during work to complete the molding. This method is prone to unstable flow of casting liquid, or even agitation or spraying of casting liquid, which affects the quality of casting liquid and casting quality. Contents of the invention [0003] The invention overcomes the disadvantages of the prior art...

AI Technical Summary

Problems solved by technology

This method is prone to unstable casting liquid flow, and even casting liquid agitation or spraying, which affects the quality of casting liquid and casting quality

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