Traction wheel structure

Abstract

The invention provides a traction wheel structure which comprises a traction wheel connecting body provided with an outer circle working face. The traction wheel connecting body is made of a metal material. The traction wheel structure is characterized by further comprising a composite material layer. The composite material layer is arranged on the outer circle working face of the traction wheel connecting body and forms a traction wheel groove or a traction wheel face. In an existing traction system, abrasion to the contact face between a traction rope or a traction belt and a traction rope groove or a traction belt is inconsistent, the phenomenon of severe uneven abrasion is usually caused, the life of the traction rope or the traction belt and the traction wheel is influenced, the safety risk is brought to an elevator, and the cost is high. According to the traction wheel structure, the equivalent friction coefficient of the surface of the traction wheel can be improved remarkably,comprehensive properties of abrasion resistance, strength, toughness and the like are improved, the diameter of the traction wheel rope or the traction belt and the traction wheel is reduced, the weight of the traction system is reduced, and the miniaturization design of the elevator traction system and the whole elevator is achieved.

Description

technical field [0001] The invention relates to a traction wheel structure, which is applied in the field of elevator traction wheels. Background technique [0002] The traction sheave is a key component of the elevator traction machine. The traction force driven by the traction sheave to drive the elevator is generated by the friction between the traction rope (belt) and the traction sheave groove (or traction sheave surface). The shape and state changes of the rope groove and surface of the pulley will directly affect the size of the traction force and the life of the traction rope (belt), and its quality will directly affect the safety performance and service life of the traction. [0003] Since the traction sheave carries all the dynamic and static loads of the elevator car, load capacity, counterweight and other devices, and is the source of determining the function of the traction drive system and the whole machine, the traction sheave is required to have high strength...

AI Technical Summary

Problems solved by technology

However, the service life of increasing the equivalent friction coefficient through the groove type is limited, and a larger friction coefficient cannot be obtained, nor can it improve the safety and life of the whole machine from the traction drive system, and reduce the system cost and other practical problems.

[0004] On the other hand, due to the inconsistent tension of the traction rope (belt), it is easy to cause inconsistent wear of the rope groove (or the contact surface of the traction belt), and undue serious uneven wear occurs, thereby changing the shape of the groove and seriously affecting the traction. Rope (belt) life and traction, bring a greater safety risk to the elevator

In the actual operation of the existing elevator, the traction rope (belt) wears a lot, and needs to be replaced every five years on average, which further increases the cost

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