Automatic towing device and method for coal mining machine

Abstract

The invention discloses an automatic towing device for a coal mining machine. The automatic towing device comprises a first fixed pulley, a second fixed pulley, a pulling rope and a mobile towing rack, wherein a movable pulley is mounted on the mobile towing rack; a guide roller is arranged on the mobile towing rack; a cable clamping plate of the coal mining machine goes around the guide roller and is connected to the coal mining machine; one end of the pulling rope is fixed on a conveyor head, while the other end of the pulling rope goes around the movable pulley, the first fixed pulley and the second fixed pulley, and is fixed on the coal mining machine. The automatic towing device can avoid the multi-layer stacking problem of the cable clamping plate of the coal mining machine. The invention further discloses an automatic towing method for a coal mining machine. The automatic towing method comprises the following steps: when the coal mining machine moves from a conveyor tail to the conveyor head, the coal mining machine pulls the pulling rope, the pulling rope pulls the mobile towing rack to move toward the conveyor head along a conveyor cable groove. The automatic towing method is simple in operation and convenient for promotion and application.

Description

technical field [0001] The invention belongs to the technical field of coal shearer tow cables, and in particular relates to an automatic tow cable device and a tow cable method for coal shearers. Background technique [0002] The power supply of electric traction shearer used in coal mine is to lay cable power supply from the moving substation in the tunnel along the roadway to the shearer, wherein the cable is worn in the cable clamp to protect the cable. The shearer drags the cable clamp to move back and forth on the working face. Since the cable clamp and the shearer do not move synchronously, there is a phenomenon of superposition of the cable clamp during repeated direction adjustments, especially in the case of oblique cutting and machine head. When cleaning the floating coal at the end, the shearer walks back and forth repeatedly, the cable clamp has exceeded the cable groove, and it is easy to fall off from the cable groove. If there is such a phenomenon in the work...

AI Technical Summary

Problems solved by technology

The shearer drags the cable clamp to move back and forth on the working face. Since the cable clamp and the shearer do not move synchronously, there is a phenomenon of superposition of the cable clamp during repeated direction adjustments, especially in the case of oblique cutting and machine head. When clearing the floating coal at the end, the shearer walks back and forth repeatedly, the cable clamp has exceeded the cable groove, and it is easy to fall off from the cable groove. If this phenomenon exists in the working face with a large slope, the cable clamp will fall on the conveyor due to its own weight. In general, the cutting drum of the coal shearer will cut the cable, which has a particularly large safety factor and requires a special person to follow the machine for maintenance

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