Intelligent following control system and intelligent following control method for cable of chain-driving coal cutter

Abstract

The invention discloses an intelligent following control system and an intelligent following control method for a cable of a chain-driving coal cutter. The system comprises a following control terminal which is used for communicating with a coal cutter control mainframe, used for controlling the running of the coal cutter and controlling a cable drawing device of the coal cutter to run. The method comprises the following steps: (1) initializing the following control terminal; (2) controlling the tensioning and collecting the signals of a chain and a cable clamp; (3) starting and running a following control system; (4) judging if a running feedback signal of the coal cutter exists between the coal cutter control mainframe and a following control mainframe; (5) judging if a rotating direction of a motor is anticlockwise when the running feedback signal of the coal cutter exists; (6) judging if the change in tensioning force of the chain is decreasing when no running feedback signal of the coal cutter exists; and (7) alarming for fault and halting the following control system. According to the invention, the following state of the coal cutter and the cable drawing device of the coal cutter can be monitored in real time, the cable of the coal cutter can be protected and dragged in time and the secondary bending of the cable is avoided in a coal mining process of the coal cutter.

Description

technical field [0001] The invention belongs to the technical field of cable protection for coal shearers, and in particular relates to an intelligent follow-up control system and method for cables of chain-driven coal shearers. Background technique [0002] Shearer is one of the three supporting machines in fully mechanized coal mining face. In the fully-mechanized mining face of unmanned or less-manned coal mines, the shearer has realized technologies such as unmanned follow-up, program-controlled coal mining, and automatic control of coal falling. However, during the coal mining process of the shearer, the cable of the shearer moves with the reciprocating motion of the shearer. When the shearer is mining coal, the cable will be bent multiple times, that is, the cable will be superimposed multiple times in the vertical direction. , This will easily cause cable extrusion, excessive bending and twisting, excessive wear, stretching, leakage, dropping, and overturning. If th...

AI Technical Summary

Problems solved by technology

In order to solve this problem, someone has proposed the automatic towing cable system of the coal mining machine and its control method, but the automatic towing cable system of the coal mining machine and its control method in the prior art all need to control the main engine and the coal mining machine through the coal mining machine. The automatic towing cable system of the shearer is used for real-time communication. The automatic towing cable system of the shearer is highly dependent on the control host of the shearer. Due to the harsh operating environment on site, the feedback signal line between the shearer and the automatic towing system of the shearer is easy. Disconnection, loss of the signal of the shearer, once the communication between the control host of the shearer and the automatic cable system of the shearer disappears, the equipment will be shut down and the production efficiency will be reduced

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