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Electromagnetic brake control device

A technology of electromagnetic brakes and control devices, applied in brake actuators, gear shifting mechanisms, mechanical equipment, etc., and can solve problems such as high energy consumption, equipment damage, and high noise

Active Publication Date: 2012-12-05
CHINA SHENHUA ENERGY CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The old-fashioned brake electromagnet has disadvantages such as large starting and maintaining current, low power factor, large size, high failure rate, high energy consumption, and high noise; while hydraulic brake oil leakage is a fatal shortcoming, which can pollute equipment and the environment, causing The waste of lubricating oil can easily cause hydraulic equipment to lack oil and cause damage to the equipment.

Method used

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  • Electromagnetic brake control device
  • Electromagnetic brake control device

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Embodiment approach

[0024] like figure 1 As shown in the dotted box in , according to one embodiment of the present invention, the control device may include:

[0025] A switch circuit, the switch circuit may include a first transistor BG1, a second transistor BG2 and a first capacitor C1, the base of the first transistor BG1 is connected to the collector of the second transistor BG2, and the first capacitor C1 is connected in series between the collector and emitter of the second triode BG2, and the emitter of the first triode BG1 is connected to the control terminal of the thyristor;

[0026] A trigger circuit, which includes a second capacitor C2, a third capacitor C3, a first Zener diode D6 and a first resistor R8, the two ends of the second capacitor C2 are respectively connected to the base of the second triode BG2 and One end of the first resistor R8 is connected, both ends of the third capacitor C3 are respectively connected to one end of the first resistor R8 and the common end, and the...

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Abstract

The invention discloses an electromagnetic brake control device configured by the following scheme: when an electromagnetic controller is started, a first control signal is sent to a thyristor of the electromagnetic controller, thereby enabling the thyristor to realize the conduction in a large conduction angle way, so that the large current passes through coils of the electromagnetic controller; and after the preset time passes, a second control signal is sent to the thyristor, thereby enabling the thyristor to realize the conduction in a small conduction angle way, so that the small current passes through the coils of the electromagnetic controller. Through the scheme, the problem that an electromagnetic brake needs large current when being started and needs small current after being started to be maintained is solved well.

Description

technical field [0001] The invention relates to an electromagnetic brake control device. Background technique [0002] Brakes are widely used in hoisting machinery, mining machinery, port equipment, construction machinery and various automation equipment in industrial production. According to different structures and driving methods, it can be roughly divided into electromagnetic brakes (AC, DC), electrohydraulic brakes and disc brakes. At present, the electromagnetic brakes at home and abroad are in the era of alternating old and new. The old-fashioned brake electromagnet has disadvantages such as large starting and maintaining current, low power factor, large size, high failure rate, high energy consumption, and high noise; while hydraulic brake oil leakage is a fatal shortcoming, which can pollute equipment and the environment, causing The waste of lubricating oil can easily cause hydraulic equipment to lack oil and cause damage to the equipment. With the rapid develop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D65/14F16D121/18
Inventor 刘鑫穆霄刚许宁王立德张国旭杨国良
Owner CHINA SHENHUA ENERGY CO LTD