What is the stress distribution in belt drive? Detailed
When working, the friction of the driving wheel belt is consistent with the direction of the belt movement, and the friction force of the driven wheel is opposite to the direction of the belt movement. Therefore, the active side (lower) is tensioned, and the tension is increased; the driven edge (upper) is relaxed, and the tension is reduced; that is, a tight edge and a loose edge are formed. It is called tight side tension, called slack side tension. If the approximate total length of the belt at work is constant, the increase in the tension at the side of the belt should be equal to the decrease in the tensile force at the side of the slack.
The maximum stress in the tension side is screwed into the small pulley at the reason: belt drive belt stress consists of three parts and 1. tensile stress 2. centrifugal tensile stress of 3. bending stress to tensile stress, tight side tension than the loose side, so tight pulling stress boundary than for centrifugal pine; the tensile stress is equal everywhere; for bending stress, small round of small diameter, bending degree, so the small pulley belt on the bending stress ratio on the big pulley. To sum up, the maximum stress in the tension side is screwed into the small pulley at.
Due to the tension of the initial tension sleeve on the two pulleys, the positive pressure on the contact surface of the belt and the pulley is under the action of the utility model. The tension on both sides of the belt is equal when not working.
