Elevator traction mechanism with safety loop detecting system

Abstract

The invention relates to an elevator traction mechanism with a safety loop detecting system, and the elevator traction mechanism solves the defects in the prior art. According to the technical scheme,the key point is that the elevator traction mechanism comprises a safety loop, a plurality of switch detecting modules, a safety bus and an upper control system, wherein the safety loop comprises a master switch, a plurality of limiting switches and a safety switch; a power supply is connected to a primary safety contactor coil through the safety loop; each switch detecting module is correspondingly provided with a master switch, a limiting switch or a safety switch, the output end of the switch detecting module is in communication connection to the upper control system through the safety bus, the first detecting end of the switch detecting module is connected to a movable contact of the master switch, a movable contact of the limiting switch or a movable contact of the safety switch, andthe second detecting end of the switch detecting module is connected to a movable contact of the master switch, a movable contact of the limiting switch or a movable contact of the safety switch; thesafety bus is used for connecting all switch detecting modules to the upper control system; and the upper control system receives output signals of all switch detecting modules and a synchronous controller through the safety bus to control operation of an elevator.

Description

technical field [0001] The invention relates to the technical field of elevator manufacturing, in particular to an elevator traction mechanism with a safety loop detection system. Background technique [0002] In high-rise buildings, the elevator is a necessary accessory equipment, which can bring great convenience to the occupants. At present, with the development of the economy, a large number of middle and high-income groups have emerged, and the demand for villas is also increasing. Correspondingly, home elevators suitable for villa buildings have also become popular. The elevator mainly includes a shaft, a car that can be lifted and lowered in the shaft, and a drive mechanism for driving the car to go up and down. The traction machine is connected to the traction wheel, and a traction rope is wound around the traction wheel. One end of the traction rope is connected to the car, and the other end is connected to a counterweight that can be lifted and lowered in the hois...

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to solve the problems of difficult reliable braking and low safety in the existing elevator traction mechanism, and provide an elevator traction mechanism, which can realize the traction sheave braking when the elevator system fails or fails. The reliable braking can effectively avoid the safety accident of the car jumping to the top or squatting at the bottom

Images