Traction wheel for elevator

Abstract

The invention discloses a traction wheel for an elevator. The traction wheel for the elevator comprises a first wheel body. Multiple limiting portions are arranged on the outer side of the first wheelbody. Rope slots are formed between the adjacent limiting portions. A second wheel body is arranged on the limiting portion on one side of the first wheel body. Multiple clamp teeth are arranged on the outer side of the second wheel body. The clamp teeth are arranged on the outer side of the second wheel body and are distributed circumferentially and evenly. The limiting portions and the second wheel body are integrally cast and formed. The section of the position, on the two sides of the corresponding rope slot, of each limiting portion comprises a first arc face on the outer portion, a vertical plane connected with the first wheel body and a second arc face connected with the first arc face and the vertical plane. The second arc faces are bent towards the interiors of the limiting portions. The radius of curvature of each first arc face is smaller than that of the corresponding second arc face. The traction wheel for the elevator is integrally cast and formed, the production cost islow, the strength of the traction wheel is greatly improved, moving of steel wire ropes cannot be caused during use, and the fixing effect is good.

Description

technical field [0001] The invention relates to the technical field of elevator accessories, in particular to a traction wheel for an elevator. Background technique [0002] Elevators are passenger tools that are frequently used in daily life. However, due to the particularity of its use occasions, it is necessary to maintain it for a long time and replace aging or worn parts in time to ensure the safety of elevator applications. [0003] The traction sheave is the sheave on the traction machine, also known as the traction sheave or the driving sheave. The traction sheave is the device for the elevator to transmit the traction power. power. Elevators can be divided into machine room and machine roomless, both of which require corresponding traction wheels. [0004] Since the traction sheave bears all the weight of the elevator car's own weight, load and counterweight, ductile iron is often used as the material to ensure a certain strength and toughness. At the same time,...

AI Technical Summary

Problems solved by technology

[0005] However, in the prior art, the traction sheave usually fixes the chainring on its side by bolts for power transmission, but the fixing of the traction wheel and the chainring needs to be kept stable, and regular inspections are required, otherwise there will be serious problems. In addition, if the distance between the rope grooves is short, it is easy to cause stringing of the wire rope, which also has a large hidden danger

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