Self-rescue method for elevator free movement

A technology for sliding ladders and elevators, applied in the field of automatic protection, can solve problems such as generation of failures and no self-rescue, and achieve the effect of facilitating judgment and avoiding safety accidents.

Active Publication Date: 2008-10-08
YUNGTAY ELEVATOR EQUIP CHINA
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  • Summary
  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] The current market products do not have this function. At most, when the control system is stopped, the elevator is

Method used

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  • Self-rescue method for elevator free movement

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Embodiment Construction

[0015] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0016] see figure 1 , the specific implementation process of the technical solution is:

[0017] (1) When the elevator is in the door area, check the elevator system to judge whether there is a slide, if so, let the control system issue a self-rescue command, and then the frequency converter sends an equivalent reverse torque according to the slipping situation to keep the car position; at the same time Send the corresponding signal to the control system; otherwise, end the detection;

[0018] (2) Judging whether the control system has received a response letter within a fixed period of time, if so, control the elevator to stay in the door area for a period of time to release passengers; then, the elevator walks slowly to the uppermost step, an...

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Abstract

The invention discloses a method used for an elevator to realize self-rescue in elevator slipping. The technology scheme can be used for detecting the pulse number of an encoder and monitoring whether the elevator car has slippage when the braking force is not sufficient in the elevator system or a motor stops running. If the slippage happens, an opposite torque is executed according to the direction of the slippage to keep the elevator car near an initial place. The breakdown is indicated and the passengers are informed for leaving. The elevator car then automatically moves to the safest place for preventing safety accident from occurring; besides, the fault code generated in the technical scheme can facilitate the working of the maintenance staff.

Description

Technical field: [0001] The invention relates to the technical field of automatic protection when an elevator system slips. In particular, it relates to a method applied to elevators to realize self-rescue of ladders. Background technique: [0002] At present, the products on the market do not detect and protect whether the slippage occurs when the elevator stops. In this way, when the motor brake fails, the elevator may slip, causing life and property safety. [0003] The current market products do not have this function. At most, when the control system stops, the elevator is found to be slipping, causing a fault, and there is no self-rescue (maintain the elevator in the leveling area) function. Invention content: [0004] In order to overcome the above-mentioned defects in the prior art, the purpose of the present invention is to provide a method applied to elevators to realize self-rescue of slides. The technical solution can be used to automatically output torque wh...

Claims

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Application Information

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IPC IPC(8): B66B5/00B66B5/02B66B3/00
Inventor 杨亚军涂长祖洪浩王伟峰余德明
Owner YUNGTAY ELEVATOR EQUIP CHINA
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