An elevator traction machine

Abstract

The invention provides an elevator traction machine, which is the field of motor technology.It solves technical problems such as poor safety of existing elevator traction machines.An elevator traction machine, including the case and the shaft on the motor, the motor, the reducer and the brake between the case and the shaft, the shaft has the control terminal and output of the case, and the output end is set on the output end.Safety devices, passive safety devices include a speed limit box that is fixed on the shell and fixed on the shaft. The speed limit box is evenly set with a number of slippery cavity.The heavy valve core, the shell is also equipped with a guided cavity corresponding to the smooth cavity.There are hydraulic oils in the smooth cavity.The present invention has the advantages of good security performance.

Description

technical field [0001] The invention belongs to the technical field of motors, and relates to an elevator traction machine. Background technique [0002] The elevator traction machine is the power equipment of the elevator, also known as the elevator host. The function is to convey and transmit power to make the elevator run, control the elevator car to stop and so on. It consists of electric motor, brake, coupling, reduction box, traction sheave, frame and guide wheel and auxiliary turning handwheel. The guide wheel is generally installed on the frame or the load-bearing beam under the frame. Some of the turning handwheels are fixed on the motor shaft, and some are usually hung on the nearby wall, and then put on the motor shaft when in use. [0003] The existing elevator traction machine has the following problems: 1. The brake of the traditional elevator traction machine is electronically controlled, and there are many dust and debris between the elevator car and the w...

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Problems solved by technology

[0003] The existing elevator traction machine has the following problems: 1. The brake of the traditional elevator traction machine is electronically controlled, and the traction machine is located between the elevator car and the wall, and there is a lot of dust and debris, especially when it falls from the elevator door. 2. The brake of the traditional elevator traction machine has no passive safety device. When abnormal conditions such as power failure occur, the elevator car is in danger of falling; 3. The traditional elevator traction The brakes of the machine are used to brake the decelerated rotating shaft to achieve overall braking. The decelerated rotating shaft has a smaller speed and the braking effect is more obvious. However, when the decelerating end of the rotating shaft is braked, the impact on the reduction box is relatively large. , the damage and impact on the coupling is greater; 4. The coupling of the traditional elevator traction machine generally does not have a buffer function. Even if some couplings have a buffer function, the buffer cannot be buffered according to the actual situation of the elevator, that is, , when the elevator stops up and down, the impact force is different. The impact force of the down stop is relatively large, and it is not easy to avoid. The impact force of the down stop is small, but rebound is not allowed. If there is rebound, give Passengers have a stronger sense of weightlessness, which leads to discomfort when taking the elevator; 5. The structure of the reducer of the traditional elevator traction machine is complicated, and it is generally realized by bevel gears. The reduction ratio is obtained through multiple reductions, sacrificing part of the transmission stability

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