How is the maximum tension of the conveyor belt determined?
1. The maximum tension of the conveyor belt should meet the conditions: the maximum tension generated by the conveyor belt during the operation of the belt conveyor should meet the conditions of friction transmission, drape and the condition of the conveyor belt not breaking.
2. The position of the maximum tension of the conveyor belt: According to the working principle and use condition of the belt conveyor, the maximum tension of the conveyor belt should occur at the meeting point of the conveyor belt and the driving roller, but for the lower belt conveyor, If the angle of inclination is large and the belt conveyor is in a power generation state, the maximum tension of the conveyor belt occurs at the point of separation of the conveyor belt from the drum. For the head-to-tail drive belt conveyor, it is also necessary to compare the running direction and inclination of the conveyor belt to which active roller the maximum tension of the conveyor belt occurs.
3. The method for determining the maximum tension of the conveyor belt: taking the single-end drive horizontal transportation as an example to study the determination method of the maximum tension of the conveyor belt, according to the stepwise calculation method
S2 = S1 + Wk (1)
S3 = C1 S2 = C1 (S1 + Wk) (2)
S4 = S3 + Wz = C1(S1 + Wk) + Wz where S1, S 2 , S 3 , S4 tension at each special point of the conveyor belt, N; Wk running resistance of the conveyor belt (in acceleration deceleration) To consider the inertial force), N; Wz the running resistance of the heavy-duty conveyor belt (taking into account the inertial force during acceleration and deceleration), N; C1 conveyor belt bending resistance coefficient at the driven roller.