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Brake control system and brake control method for construction lift

A technology for construction lifts and brake control, applied in lifts, transportation and packaging, etc., can solve problems such as friction, and achieve the effect of reducing friction and prolonging service life.

Active Publication Date: 2014-01-01
SUZHOU INOVANCE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a construction elevator brake control system and method for the above-mentioned problem of friction between the brake and the motor shaft when the construction elevator stops

Method used

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  • Brake control system and brake control method for construction lift
  • Brake control system and brake control method for construction lift
  • Brake control system and brake control method for construction lift

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Embodiment Construction

[0024] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0025] Under normal circumstances, the torque upper limit of the inverter is fixed, and the inverter adjusts the output torque according to the current load. When the output torque is greater than the set value of the torque upper limit, the inverter will not continue to accelerate. It can maintain the current frequency output or reduce the frequency to run. The present invention utilizes the above-mentioned characteristics of the upper limit of the torque to adjust the output torque of the frequency converter according to the closing time when the frequency converter controls the stop of the co...

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Abstract

The invention provides a brake control system for a construction lift. The construction lift is driven by a motor controlled by a frequency converter, and the brake control system comprises a brake control unit and a frequency converter control unit; the brake control unit is used for outputting a gate closing instruction to a brake when a shutdown command is received; the frequency converter control unit is used for adjusting output torque of the frequency converter in real time according to gate closing time, and the output torque is reduced along with elapsing of the gate closing time. The brake control system has the advantages that the output torque of the frequency converter is adjusted in real time in brake procedures, a brake pad of the brake can be stably combined with a motor shaft, jittering is prevented, and accordingly a lift car can be stably shut down under the control of the brake control system.

Description

technical field [0001] The invention relates to the field of construction elevator control, and more specifically, to a construction elevator braking control system and method. Background technique [0002] Construction elevators, also known as building construction elevators, are safe and efficient vertical transportation equipment in building construction. They are often used as construction machinery for manned and cargo-carrying in building construction. Because it is very convenient to install and disassemble, and has the characteristics of stable performance, safety and reliability, flexible handling, and strong adaptability, it can significantly improve work efficiency and reduce the labor intensity of construction personnel. Construction elevators have been widely used. At present, construction elevators at home and abroad are undergoing a process of electrical control frequency conversion. Frequency converters are used as drive control equipment, and the usage is in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66B1/32
Inventor 殷杰曹睿邱志红
Owner SUZHOU INOVANCE TECH CO LTD
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