Analysis of the factors affecting the service life of the conveyor scraper, which is conducive to taking corresponding measures to extend its overhaul cycle, reduce the consumption of conveyor scraper and tank floor, and improve the economic feasibility and rationality of the equipment.
Working principle The material in the channel is affected by the pressure of the conveyor scraper chain in the moving direction and the quality of the clinker itself, and an internal friction force is generated between the loose bodies, which ensures a stable state between the loose bodies, and The external frictional resistance generated by the slipping of the clinker in the channel causes the clinker to form a continuous overall stream to be transported. Adjusting the proper clearance between the squeegee and the sump floor is an important issue that affects the service life and delivery efficiency of the equipment. Proper installation and maintenance ensure that the specifications of the conveyor scraper chain are uniform and the turning position is flexible.
To ensure the straightness of the inner wall of the casing, it is not allowed to have the upper and lower misalignment of the interface flange and the guide rail, and the joint should be smooth and without steps. In addition, the interface flange should be straight and the verticality of the interface should not exceed 1mm to ensure that the conveyor scraper chain does not cause scratches during operation, which is conducive to normal operation and reduce wear and power consumption. Ensure that the head and tail wheel centerline level tolerance is within 6mm, and the head, tail wheel and support rail must be centered, and the level of the head and tail axle must be leveled.
Determine the running direction of the conveyor scraper chain, do not reverse it. Ensure that the conveyor scraper chain has proper tightness and should not be too tight or too loose. Adjust the tail device to ensure that the unused travel is not less than 50% of the whole process. The motor output shaft, reducer output shaft and conveyor head shaft should be parallel, the size sprocket should be cope with, and the axial displacement of the two sprocket wheels The amount should be within 2mm.
Reasonable design and good manufacturing quality The conveyor scraper is a load-bearing member made of 16Mn steel and welded directly perpendicular to the chain. The conveyor scraper chain is a traction member, which is designed as a double-plate chain. It is stamped and formed by two steel plates and welded into a chain rod, which is then connected by a pin. It is characterized by reliable use, simple manufacturing and low price. In the working process, the conveyor scraper chain has to overcome a large frictional resistance and bears a large dynamic load and static load. Therefore, the conveyor scraper chain is heat-treated after manufacturing and welding, so that it has high strength, toughness and resistance.