(Summary description)When the conveyor belt bypasses the drum, bending stress is generated, which causes the core fatigue. The smaller the diameter, the greater the bending stress. Obviously, the diameter of the roller is beneficial to increase the length of time the conveyor belt is used. However, after reaching a certain value, the bending stress is not significantly reduced, and it will also increase the volume of the equipment (shèbèi). Therefore, in order to ensure that the bending stress of the conveyor belt is not too large, the small diameter of the roller should be restricted. The principle of selecting the diameter D of the driving drum is: when the multi-layer core conveyor belt adopts mechanical joints, D≥100i, mm (i is the number of canvas layers); when vulcanized joints are used, the joints are trapezoidal lap joints, which are easy to be under bending stress. Peeling, so D≥125i, mm. When the whole braided core conveyor belt uses mechanical joints, D≥K8, mm (k depends on the parameter of the core frame material; 8 is the core thickness, mm). When steel cord conveyor belt is used, D=(150～200)(t, mm (d is the diameter of steel wire rope, mm). The diameter of the reversing drum is based on the driving drum diameter, the force percentage and the angle of the conveyor belt to the drum. determine.

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• Time of issue:2020-11-12
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