Counterweight opposite traction mechanism for elevator emergency rescue

Abstract

The invention discloses a counterweight opposite traction mechanism for elevator emergency rescue, and belongs to the field of elevators. The counterweight opposite traction mechanism comprises a control system, a mounting platform and a lift car, a traction machine is mounted on the top wall of the mounting platform, a traction wheel is mounted on the traction machine through a traction shaft, a first worm gear is mounted at one end, away from the traction machine, of the traction shaft, the first worm gear is meshed with a first worm, and the two ends of the first worm gear are installed with the driving end of a protection motor and the driving end of a rescue motor correspondingly. According to the elevator traction mechanism, on one hand, through meshing of the first worm gear and the first worm and arrangement of the protection motor and the rescue motor, elevator operation faults caused by faults of the traction machine can be avoided, on the other hand, the clamping force on a traction rope is increased through a clamping gear, friction is increased, auxiliary driving can be carried out when the traction machine operates, slipping between the traction rope and the traction wheel, in addition, when the traction machine stops, the braking force of the lift car can be increased by means of friction force.

Description

technical field [0001] The invention relates to the technical field of elevators, in particular to an elevator emergency rescue counterweight opposite traction mechanism. Background technique [0002] Elevator refers to the permanent transportation equipment that serves several specific floors in the building, and its car runs on at least two rigid rails that are perpendicular to the horizontal plane or at an inclination angle of less than 15° from the plumb line. [0003] At the end of the 20th century, elevators used permanent magnet synchronous traction machines as power. It greatly reduces the area occupied by the computer room, and has the advantages of low energy consumption, energy saving and high efficiency, and fast lifting speed, which greatly promotes the development of real estate in the direction of super high-rise buildings. [0004] After retrieval, Chinese Patent No. CN109665426A discloses an elevator counterweight opposing traction mechanism, which aims to ...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, the braking reliability of the elevator traction mechanism is not good, the safety is not high, and there is a risk of slipping between the traction sheave and the traction rope. Therefore, the safety performance of the elevator cannot be guaranteed, and occurrence of The probability of accidents is high, which is not conducive to the safety of elevator operation and the self-rescue of elevator passengers. Therefore, the present invention proposes a traction mechanism with opposite counterweights for elevator emergency rescue.

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