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Elevator Overload Detection Method

A detection method and elevator technology, applied in elevators, transportation and packaging, etc., can solve problems such as potential safety hazards, prone to "squatting" accidents, etc., and achieve the effect of stabilizing elevator overload detection and facilitating overload response.

Active Publication Date: 2016-02-24
SHENZHEN HPMONT TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, this kind of overload protection belongs to the protection and detection of mechanical devices. Once such mechanical devices fail, "squatting" accidents are very likely to occur, and there are potential safety hazards

Method used

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  • Elevator Overload Detection Method
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  • Elevator Overload Detection Method

Examples

Experimental program
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Embodiment Construction

[0035] Such as figure 1 As shown, the elevator overload detection method according to an embodiment of the present invention comprises the following steps:

[0036] Step 102, sending a zero-speed running command to open the brake. Under this step, the elevator is ready to start. In an optional embodiment, the zero-speed running command and the command to open the brake are issued by the integrated controller.

[0037] Step 104, record the current output torque of the elevator. Specifically, the elevator controller provides a corresponding driving voltage according to the current load status of the elevator, so as to drive the motor to generate a corresponding torque, thereby preparing to drive the elevator to run.

[0038] Step 106, comparing the recorded current output torque with the preset overload action torque. Wherein, in an optional embodiment, the preset overload action torque can be pre-set into the elevator overload detection device.

[0039] Step 108, if the co...

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PUM

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Abstract

The invention relates to an elevator overload detection method which comprises the steps of sending zero-speed running commands, opening a band-type brake, recording current output torque of an elevator, comparing the current output torque with predetermined overload movement torque, determining that the elevator is overloaded through the comparative result that the current output torque is larger than the predetermined overload movement torque, and making overload responses. The elevator overload detection method can use the output torque of the elevator as a judgment condition to judge whether the elevator is overloaded or not, therefore, another reliable method, besides an overload judgment method by mechanical devices, for judging whether the elevator is overloaded or not is provided, accurate and stable elevator overload detection can be provided, and the overload responses can be conveniently made. The invention further provides an elevator overload detection device.

Description

technical field [0001] The invention relates to an elevator overload detection method, in particular, the invention relates to a method for output torque detection elevator overload. Background technique [0002] Elevators are important conveying equipment for buildings such as high-rise residences and commercial properties. Today, with the increasing number of various high-rise buildings, the safety technology of elevators is an extremely critical issue. [0003] Usually, the elevator is equipped with an overload protection device to prevent abnormal operation of the elevator caused by a load exceeding the carrying capacity of the elevator. Generally, a digital or analog weighing device is provided in the elevator for overload protection. When overload protection occurs, the elevator will not close the door and the buzzer will alarm. [0004] However, this kind of overload protection belongs to the protection and detection of mechanical devices. Once such mechanical devic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B66B5/14
Inventor 郑伟钟玉涛
Owner SHENZHEN HPMONT TECH