Elevator diversion sheave assembly

Abstract

An elevator diversion sheave assembly comprises a sheave body and a sheave groove body; the sheave body is provided with an annular groove matched with the sheave groove body and composed of two or more sheave groove belts; and each sheave groove belt is provided with one or more sheave grooves matched with a traction steel rope. The elevator diversion sheave assembly has the following advantagesthat only the sheave groove belts need to be replaced after the diversion sheave assembly is abraded, two persons can replace the sheave groove belts on the diversion sheave with half an hour, replacement is simple and efficient, the replacement time is shortened, the situation that long-term replacement affects normal operation of an elevator is avoided, safety of replacement of the sheave groovebelts is high, and safety accidents are avoided.

Description

technical field [0001] The invention relates to an elevator suspension system, in particular to an elevator anti-sheave assembly. Background technique [0002] The anti-rope pulley refers to the movable pulley that is installed above the car assembly and the counterweight assembly in the elevator suspension system, and is suspended on the traction wire rope to mainly play a load-bearing role. It directly affects the safety of the elevator and the smoothness of movement. . [0003] The reverse sheave in the prior art includes a sheave body and a plurality of juxtaposed rope grooves arranged on the outer contour of the sheave body. When the elevator is running up and down, the traction wire rope is located in the rope groove, and the anti-rope pulley and the traction wire rope are driven by sliding friction. After the elevator runs for a long time, the rope groove of the anti-rope pulley will be severely worn, and the rope groove will be severely worn Finally, the traction w...

AI Technical Summary

Problems solved by technology

When the elevator is running up and down, the traction wire rope is located in the rope groove, and the anti-rope pulley and the traction wire rope are driven by sliding friction. After the elevator runs for a long time, the rope groove of the anti-rope pulley will be severely worn, and the rope groove will be severely worn Finally, the traction wire rope is easy to jump jobs, causing multiple traction wire ropes to get mixed together, resulting in an emergency stop of the elevator. There is a great security risk

When the anti-rope pulley needs to be replaced due to wear and tear, the car assembly and the counterweight assembly need to be suspended by the hoist first, and the traction wire rope under the car assembly and the counterweight assembly must be removed to replace the anti-rope pulley. The process is not only cumbersome, time-consuming and labor-intensive, usually two people can replace one anti-sheave in one day, which seriously affects the normal operation of the elevator, and because the entire anti-sheave is heavy and bulky, it is difficult to replace the anti-sheave in the hoistway prone to safety accidents

[0004] There is also a reverse sheave assembly in the prior art, which includes a sheave body with a rope groove, and an annular elastic rubber matching the rope groove is arranged in the rope groove. Since the elastic rubber is arranged in a ring, Therefore, when the elastic rubber is replaced due to wear and tear, it is still necessary to suspend the car assembly and the counterweight assembly through the hoist, remove the traction wire rope under the car assembly and the counterweight assembly, and then replace the elastic rubber. The process is cumbersome and time-consuming

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