The mechanical energy loss of the belt conveyor is constant kinetic energy. The kinetic energy when it reaches the same speed with the conveyor belt comes from the work of sliding friction. Part of the work of sliding friction is used to increase the kinetic energy of the object, and the other part generates heat. The heat comes from the relative sliding before the common speed. For example, the conveyor belt moves to the right. When it is just put on, the wooden block moves to the left relative to the conveyor belt. At this time, the sliding friction force on the wooden block moves to the right, so the sliding friction force does negative work. . To calculate kinetic energy, sliding friction is multiplied by displacement to the ground, while thermal energy is sliding friction multiplied by relative displacement (relative to the displacement of the object it contacts, in this case, the displacement of the wooden block relative to the conveyor belt).
Conveyor belts with traction parts generally include: traction parts, load-bearing members, driving devices, tensioning devices, redirecting devices and supports. Traction parts are used to transmit traction, which can be conveyor belts, traction chains or wire ropes; load-bearing components are used to carry materials, including hoppers, brackets or spreaders, etc.; driving devices provide power to the conveyor, usually by electric motors, reducers and Brake (stop) and other components; the tensioning device generally has two types of screw type and heavy hammer type, which can maintain a certain tension and sag of the traction member, so that the conveyor belt can run normally.
The supporting member is used to support the traction member or the bearing member, and can adopt rollers, rollers, etc. The structural characteristics of the conveyor belt equipment with traction parts are: the material to be transported is installed in the carrying member connected with the traction part, or directly installed on the traction part (such as a conveyor belt), and the traction part bypasses the head and tail of each roller or sprocket. Connected to form a closed loop including a loaded branch that transports materials and an unloaded branch that does not transport materials, and the continuous movement of the traction member is used to transport the materials.
