Dual-motor elevator traction system and control method thereof

Abstract

The invention relates to a dual-motor elevator traction system, which comprises two traction machines which are arranged on the top and the bottom of a well, an upper traction wheel, a lower traction wheel, a hoist rope, a car, a counterpoise, a guide wheel A, a diversion sheave A, a diversion sheave B, a car rope hitch plate and a detection control system for detecting the operation of the elevator, wherein the two traction machines are connected with the counterpoise by the hoist rope and the guide wheel A; the other end of the counterpoise is connected with the lower traction wheel; the counterpoise is arranged on the rear side of the car; one end above the car is fixed on the car hitch plate, and connected with the upper traction wheel by the diversion sheave A and the diversion sheave B, and the lower end of the car is connected with the lower traction wheel to integrally form a ring-shaped structure. The dual-motor elevator traction structure disclosed by the invention improves the reliability of elevator operation.

Description

technical field [0001] The invention relates to a drive device for an elevator without a machine room, in particular to a double-motor elevator traction system and a control method for realizing redundant control of the double-motor traction system. Background technique [0002] The machine room-less elevator is an elevator model developed to save the layout space of the elevator machine room according to market needs. The machine-room-less elevator is not only compact in structure, saves space, but also energy-saving and efficient. There are usually two arrangements for the traction mechanism of machine room-less elevators: one is that the traction machine is located at the bottom of the hoistway, referred to as the lower traction; the other is that the traction machine is located at the top of the hoistway, referred to as the upper traction. [0003] In the modern elevator control system, how to improve the reliability of the elevator, that is, to ensure that the system ca...

AI Technical Summary

Problems solved by technology

However, all single-motor traction systems are used. When the motor fails, it may cause the elevator to fall, which will cause irreparable losses.

When there is a failure, it must be stopped for repair, and if it is stopped for repair during the peak period of the mall, it will lead to customer dissatisfaction and complaints, which will have a negative impact on the mall

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