A belt changing method for a belt conveyor belt retracting and unwinding device

Abstract

Provided is a belt replacing method for a rubber belt winding and unwinding device of a belt conveyor. The method includes the steps that a vertical rotating roller is installed on a rack after the belt conveyor is shut down, a tensioning trolley is loosened, the rubber belt winding and unwinding device is placed on the head of the belt conveyor, an old rubber belt is cut off, a new rubber belt is connected, and the other end of the old rubber belt is connected with a belt winding device through the gap of a belt replacing device; a hydraulic pump station is started, an oil cylinder moves downwards, and the pressure of the rubber belt is controlled by a pressure sensor so that the rubber belt can be pressed; a hydraulic motor is started, a caterpillar track performs transmission, the rubber belt is matched with the belt winding device under the action of friction force so that the old rubber belt can be wound, and meanwhile the new rubber belt is gradually laid; the hydraulic motor stops running, a card is punched on the new rubber belt layer of the belt conveyor and fixed, a traction oil cylinder is started to drive an upper caterpillar track to move upwards so that the rubber belt can be loosened, the belt replacing device and the vertical rotating roller are taken down, the rubber belt is tensioned by a traveling trolley after vulcanization is performed, and a no-load test run is carried out. According to the method, the new rubber belt is laid while the old rubber belt is wound, the belt replacing process is simplified, manpower and material resources are saved, and the method is applicable to replacement of various types of belt conveying rubber belts under different working environments.

Description

technical field [0001] The invention relates to a method for changing belt conveyor belts, in particular to a method for rapidly and continuously replacing long-distance steel cord core belts of belt conveyors in coal mine underground roadways. technical background [0002] Belt conveyor is an extremely important large-scale equipment in coal production. It plays an irreplaceable role in coal mine production and is an extremely important part of realizing coal from the working face to the ground. Among them, the tape is the carrier for carrying and transporting coal, but during the long-term use of the tape, there is friction between the tape surface and the material, the friction between the tape and the roller, resulting in scratches on the tape surface, and even corrosion and corrosion of the steel wire rope. The fracture phenomenon has buried a safety hazard for the operation of the tape. Therefore, in order to ensure the safe and stable operation of the belt, the belt ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method of belt replacement is that the winding of the old tape and the laying of the new tape cannot be carried out at the same time, which prolongs the time for changing the belt; in addition, this method removes the old tape from the conveyor and places the new tape through all drives and Unloading the drum and other links requires a lot of manpower and material resources, and there are potential safety hazards

[0004] The publication number is CN101934915A, which discloses a "method for replacing the belt of a long-distance steel cord belt conveyor". In this method, after the old belt is disconnected, the old and new belts are connected together, and the new belt is laid on by recovering the old belt piece by piece. , to overcome the discontinuous link of the traditional belt replacement method, which is to remove the old belt first and then lay the new belt. However, in the process of recycling the old belt, the belt is pulled and reeled separately, which greatly increases the time for changing the belt. Consumed a lot of manpower and material resources

[0005] The above-mentioned publicly reported existing methods for changing belts have problems such as low efficiency, slow belt changing speed, and low reliability of belt conveyors in coal mines , it is difficult to use in actual belt changing

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