Method for adjusting the motor speed of a machine tool to take up any slack in the driven load has tachogenerators at the motor output and load input to establish the speed difference

摘要

The motor (2) has a speed sensor (5) between the output shaft and gearbox (3) and load (4) having a speed sensor (6) whose outputs (nMotor,nLast) are measured (7,8) and passed (11,12) to a converter (9) to be compared to a reference speed (nsoll) to regulate the motor speed.