Planetary gear reducer is a power transmission mechanism, which uses the gear speed converter to reduce the rotation number of planetary gear reducer (motor) to the required rotation number and obtain a large torque. At present, among the mechanisms used to transmit power and motion, planetary gear reducer is widely used. It can be found in almost all kinds of mechanical transmission systems, from ships, cars and locomotives of vehicles, heavy machines and tools for construction, industrial milling equipment in mechanical industry such as Raymond mill, high-pressure suspension roller mill and crushing equipment such as jaw crusher, impact crusher, sand making machine and fine crusher, to common household appliances in daily life, Clocks and watches, etc. the application of the reducer can be seen from the transmission of large power to the transmission of small load. In industrial applications, the reducer has the functions of reducing speed and increasing torque, so it is widely used in the conversion equipment of speed and torque.
