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Electric control device system for mining elevator and control method thereof

A control method and technology of electronic control devices, applied in general control systems, electrical program control, control/regulation systems, etc., can solve problems such as hidden dangers in production safety, inability to stop, and lack of any protection system, so as to improve production efficiency and prevent The effect of further expansion of the accident

Active Publication Date: 2016-02-03
CITIC HIC KAICHENG INTELLIGENT EQUIP CO LTD
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the development of my country's coal industry, there are currently tens of thousands of AC hoists in operation in coal mines across the country, some of which are manually adjusted and controlled without any protection system, and have poor safety performance and are prone to "speeding" accidents; some of the equipment Parking is accomplished by putting in dynamic braking. When using dynamic braking, if the braking torque is insufficient, there will be problems or even failure to stop, which will cause hidden dangers to safety production.

Method used

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  • Electric control device system for mining elevator and control method thereof
  • Electric control device system for mining elevator and control method thereof
  • Electric control device system for mining elevator and control method thereof

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Embodiment Construction

[0022] The technical solution of the present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0023] The electronic control device system is composed of five parts: motor forward and reverse running control, inverter frequency setting, working gate control, safety gate control and two-wire system control.

[0024] Such as figure 1 As shown, the forward and reverse operation control part of the motor includes: the first PLC (101), the second PLC (102), the first relay (103), the second relay (104), the frequency converter (105), and the motor (106); The first output point (1011) of the first PLC (101) and the first output point (1021) of the second PLC (102) are connected to the control coil (1031) of the relay one (103). The open contact (1032) is connected to the forward rotation control port (1051) of the inverter (105), the second output point (1012) of the first PLC (101) and the second output po...

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Abstract

The invention discloses an electric control device system for a mining elevator and a control method thereof. The electric control device comprises the components of an elevator motor forward-rotation and backward-rotation operation control part, a frequency converter frequency setting part, a working brake control part, a safety brake control part and a double-wire-system control part. Forward rotation control and backward rotation control on the motor are realized through controlling to a frequency converter for performing forward rotation and backward rotation by a programmable logic controller (PLC). Controlling for the operation speed of the motor is finished through setting the frequency of the frequency converter by the PLC. In a normal operation condition, a braking torque is controlled through a braking handle; and safety braking is performed in emergency. The safety braking is divided into two-stage braking control and one-stage brake control. According to the electric control device system, two PLCs are mounted for realizing simultaneous operation. Operation of the elevator can be safely and reliably controlled. Furthermore production efficiency is effectively improved.

Description

technical field [0001] The invention relates to the field of mine hoist electric control equipment, in particular to a mine hoist electric control device system and control method. Background technique [0002] Mine hoist system consists of hoisting container, hoisting wire rope, drum, reducer, derrick, loading and unloading equipment, drag motor, electric control equipment and braking device. As the main transportation equipment, the hoist is responsible for lifting materials and people. It plays an extremely important role in the efficient, safe production and economic operation of the mine. Parking locations have precise requirements and strict restrictions. With the development of my country's coal industry, there are currently tens of thousands of AC hoists in operation in coal mines across the country, some of which are manually adjusted and controlled without any protection system, and have poor safety performance and are prone to "speeding" accidents; some of the eq...

Claims

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Application Information

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IPC IPC(8): G05B19/05E21B19/02
CPCE21B19/02G05B19/058G05B2219/14006
Inventor 许开成李愈清柴杰张凤海
Owner CITIC HIC KAICHENG INTELLIGENT EQUIP CO LTD
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