The diameter of the motor pulley makes the motor less than the load.
Is ok, because power is equal to the speed of the motor torque, if the pulley down to 0.8, then the current will be 1.2 * 0.8 = 0.96 times the rated current of motor, the motor will enter a state of normal operation.
The diameter of the motor pulley makes the motor less than the load. Can't be! Have you ever wondered if any set of normal equipment, if you reduce the size of the motor pulley and the large pulley? Wouldn't it make the device smaller, lighter, cheaper? Obviously, any a normal set of equipment in the design, manufacturers will be thinking of such a simple question, so the motor pulley diameter is usually used by transmission performance allowed by the minimum diameter. Therefore, you want to use the change of the transmission ratio method to make the motor but the load can not reduce the diameter of the motor belt wheel but only the diameter of the larger belt wheel!
You can. Because power is equal to the speed of the motor torque, if the pulley down to 0.8, then the current will be 1.2 * 0.8 = 0.96 times the rated current of motor, the motor will enter a state of normal operation. Leather belt wheel, belongs to the plate of the plate, the general relative size is larger, the manufacturing process is usually cast, the forging is given priority to. In general, the design of a large size is made of cast iron, and the materials are usually cast iron (the casting performance is better), and the casting steel is seldom used. The general size is small, can be designed to be forged, the material is steel. Pulley is mainly used for long-distance transmission power occasions, such as the output of small diesel engine power, agricultural vehicles, tractors, cars, mining machinery, mechanical processing equipment, textile machinery, packaging machinery, lathe, forging a bed, a small horsepower motorcycle power transmission, agricultural mechanical power transmission, air compressor, speed reducer, reducer, generators, cotton gin, and so on.
