an eccentric grinder (1) includes a rotary grinding disc (12) mounted on a drive shaft in an eccentric (7). coil means (18, 20) in contact with each other in the manner of a planetary gear is arranged on the grinding disc (12) and the crankcase (2) protection of the eccentric gear eccentric grinder (1).the crown wheel (18) mounted on the housing (2) for the protection of the eccentric gear is concentric with the drive shaft (7), and the crown wheel (20, 40, 50) mounted on the grinding disc (12) is eccentric relative to the drive shaft (7).this provides a robust and reliable structure, specially designed for the purpose of grinding work, and the crown wheel (20, 40, 50) of the grinding disc (12) is in contact with friction with a crown wheel (18) to the internal teeth fixed to the casing.this prevents effectively the grinding disc (12) to achieve the speed of idling of the motor shaft (7).
展开▼