Steel wire rope clamping device of elevator

Abstract

The invention discloses a steel wire rope clamping device of an elevator and belongs to safety protection devices of elevators. The steel wire rope clamping device comprises a brake device, a cam device, a spring device, a spring compression device and a locking device. The brake device comprises a fixed braking vane and a movable braking vane. The spring compression mechanism comprises a chain wheel-belt transmission gear composed of a chain wheel and chain transmission mechanism and a hoisting mechanism. When the rope clamping device brakes, a spring in the spring device is released from a compression state, the spring pushes a cam follower in the cam device so as to drive the fixed braking vane to move towards the fixed braking vane, and finally, a steel wire rope is clamped by the brake device. When the rope clamping device performs releasing, the chain wheel-belt transmission gear pulls the cam follower under the action of force, the spring is compressed, so that the movable braking vane is away from the fixed braking vane and the steel wire rope is released. The steel wire rope clamping device of the elevator has the advantages that the chain wheel-belt transmission device is strong in impact-resistant capacity, and the whole rope clamping device is good in braking effect, simple and compact in structure, convenient to operate and maintain, safe, and free of pollution.

Description

technical field [0001] The invention belongs to the technical field of safety protection devices for elevators, and in particular relates to a rope gripper for urgently stopping elevator wire ropes when the elevator car is in an abnormal running state. Background technique [0002] Modern elevators are mainly composed of traction machines, guide rails, counterweight devices, safety devices (such as speed limiters, safety gears and buffers, etc.), signal control systems, cars and hall doors. These parts are respectively installed in the hoistway and machine room of the building. Steel wire rope friction transmission is usually used. The wire rope goes around the traction sheave, and the two ends are respectively connected to the car and the counterweight. The motor drives the traction sheave to lift the car up and down. Elevators are required to be safe and reliable, with high conveying efficiency, accurate leveling and comfortable riding. In real life, all kinds of elevato...

AI Technical Summary

Problems solved by technology

This kind of rope clamp that uses a hydraulic system to compress the spring is cumbersome to install. The hydraulic system includes pistons, hydraulic cylinders, valves, hoses, joints, etc. These parts are prone to failure during repeated use, resulting in leakage and oil leakage. will have an adverse impact on the environment

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