Elevator car

Abstract

The invention provides an elevator car. The elevator car comprises a car frame body (1) which can be lifted in a shaft, a car body (2) which is arranged in the car frame body, and a vibration absorbing device which is arranged at the lower part of the car frame body. According to the elevator car, the vibration energy produced by the elevator in running is converted into electricity energy and isstored by an electricity storing device; a dynamic vibration absorber is controlled to vibrate through a control device based on the actual condition, thus the vibration frequency of the dynamic vibration absorber can be converted into vibration frequency through which the longitudinal vibration of the elevator car can be inhibited. Therefore, the vibration can be inhibited under the condition that the load of the car body and the location of the car change, so that the comfort of passengers is improved.

Description

technical field [0001] The present invention relates to a component of an elevator, to be precise, a car of a box elevator. Background technique [0002] In the operation of box elevators, the comfort of passengers is a problem that cannot be ignored. Starting from the feelings of passengers, generally speaking, the vibration of 3-10Hz will give passengers a sense of discomfort. During the operation of the elevator, the external excitation will generate some frequencies, and the elevator itself will inevitably generate some vibrations. If the frequency generated by the external excitation is close to the vibration frequency of the elevator itself, the entire elevator system will become in a resonance state. If the vibration of the elevator itself is close to the natural frequency of the system, the vibration will be intensified, and the comfort of passengers will be greatly reduced. The current method is to set up a modified box body to move the natural vibration frequency...

AI Technical Summary

Problems solved by technology

However, due to factors such as the load of the elevator car and the lifting stroke, the natural frequency of the vibration of the elevator system varies with each object. With the development of these years, the structure of the elevator is developing towards miniaturization, light weight, and low cost. , it becomes increasingly difficult to ensure the stiffness of the box

Therefore, it is not easy to achieve the purpose of reducing vibration by transforming the car body, and it needs to pay a high price if it is to be realized; and setting a dynamic shock absorber can only target vibration in a frequency band, but the elevator varies with objects The difference between the capacity and the stroke also leads to the difference in the natural resonance frequency, which leads to the frequency band change of the natural frequency, so it needs to be designed every time, which brings inconvenience to daily use

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