Belt replacement method for rubber belt taking-up device of belt conveyor

Abstract

The invention discloses a belt replacement method for a rubber belt taking-up device of a belt conveyor. According to the method, after parking, a vertical rotating roller is mounted on a rack, a tensioning trolley is released, the rubber belt taking-up device is arranged on a handpiece of the belt conveyor, an old rubber belt is cut off and connected with a new rubber belt, and the other end of the old rubber belt is connected with a belt winder through a gap of a belt replacement device; a hydraulic pump station is started, an oil cylinder moves downwards, a pressure sensor controls the pressure of a rubber belt to press the rubber belt; a hydraulic motor is started, a crawler belt is driven, the rubber belt is matched with the belt winder to roll up the old rubber belt under the effect of frictional force, and meanwhile the new rubber belt is laid gradually; next, the hydraulic motor stops running, the new rubber belt layer of the belt conveyor is punched and fixed, a traction oil cylinder is started to drive an upper crawler belt to move upwards and release the rubber belt, the belt replacement device is withdrawn, the vertical rotating roller is retracted, the rubber belt is tensioned by a moving trolley after vulcanization, and then no-load test run is conducted. By means of the method, the new rubber belt is laid while the old rubber belt is rolled up, so that the belt replacement process is shortened, manpower and material resources are saved, and the method is suitable for replacement of various rubber belts for all kinds of belt type delivery in different working environments.

Description

[0001] technical field [0002] 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 [0003] 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, t...

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] Publication No. CN101934915A discloses a "method for replacing belts of long-distance steel cord belt conveyors", which connects the old and new belts after disconnecting the old belt Together, the new tape is laid up by reclaiming the old tape piece by piece, which overcomes the discontinuous link that the traditional tape replacement method first removes the old tape and then lays the new tape. It is carried out separately, which greatly increases the time for changing the belt and consumes 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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