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Mining plate-scraper control system and control method thereof

A technology of control system and scraper machine, which is applied in the direction of control system, motor generator control, motor starter, etc., which can solve the problems of not meeting the requirements of small underground space and large volume, and achieves easy heavy-duty start and small volume , Reduce the effect of equipment impact

Active Publication Date: 2013-12-25
HUNAN COAL MINE MACHINERY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to provide a mining scraper machine control system and its control method in view of the technical problems in the prior art that are large in size and unable to meet the requirements of the narrow underground space due to the use of transmission couplings to start

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  • Mining plate-scraper control system and control method thereof

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Embodiment Construction

[0017] The present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0018] refer to figure 1 As shown, the present embodiment provides a mining scraper control system, including the main line connected to the three-phase power supply, the main power switch 15 set at one end of the main line, and the main motor of the controlled equipment set at the other end of the main line 12 and the auxiliary motor 13 of the controlled equipment, the speed reducer connected with the main motor 12 of the controlled equipment; it also includes a controllable soft start device RQD located on the main line; a control transformer 16 with a primary winding and a plurality of secondary windings , and the primary winding of the control transformer 16 is installed on the main line between the main power switch 15 and the controllable soft start device RQD; the...

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Abstract

The invention discloses a mining plate-scraper control system and a control method thereof. The system includes a main circuit connected with a three-phase power supply, a total power switch arranged at one end of the main circuit, a controlled-device main motor and a controlled-device auxiliary motor, which are arranged at the other end of the main circuit, a speed reducer connected with the controlled-device main motor, a controllable soft-starting device arranged on the main circuit, a control transformer with a primary winding installed on the main circuit between the total power switch and the controllable soft-starting device, a pilot assembly connected with a first secondary winding of the control transformer, a relay device connected with a second secondary winding of the control transformer, a controllable soft-starting-device controller and a master switch, which are connected with the relay device, a PC control panel controlling work of the system and a bidirectional thyristor assembly connected with the PC control panel, wherein the bidirectional thyristor assembly is connected with the controlled-device main motor. The mining plate-scraper control system is small in size and capable of meeting installation requirements in narrow space in a pit.

Description

technical field [0001] The present invention relates to the technical field of coal mines, and more specifically, relates to a mine scraper control system and a control method thereof. Background technique [0002] With the continuous expansion of the integrated production scale of coal mines, long-distance, large-inclination, and high-power mining scraper machines have been widely used. How to start the high-power scraper machine smoothly is an urgent problem to be solved in coal mine production. As a kind of underground transportation equipment, the mine scraper machine is used for coal mining face. The power supply distance is long, the line voltage loss is large, and the heavy load starts. At present, it is more common to use hydraulic coupling and friction coupling to start, and transmit the motor torque to the high-speed shaft of the reducer, which has large volume, high failure rate, low efficiency, obvious impact when starting, large voltage loss, and difficulty in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02P1/58H02P3/18
Inventor 李新良廖超平文德新熊菊芳
Owner HUNAN COAL MINE MACHINERY CO LTD
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