Patent ID: 6110028
Filing Date: 2000-08-29
Classification: B24B

Abstract:
A retarding device of a grinding machine comprising a casing, a grinding element outside the casing, the grinding element is connected with an output shaft which extends from the casing, the output shaft is driven to rotate by a motor,a flat plate firmly installed on the casing around the output shaft, the grinding element has a rear side facing the plate, a fixing seat installed on the rear side of the grinding element, a plurality of friction elements at the fixing seat, a plurality of grooves on the periphery of the fixing seat, a respective friction element is received with each groove and is fixed therewithin; and the fixing seat supports the plurality of friction elements so that as the grinding element is connected with the output shaft, and the output shaft drives the grinding element to rotate, the friction elements contact the flat plate and rotation of the friction elements and the grinding element is retarded.