COMMINUTING MACHINE DRIVE SYSTEM

摘要

A comminuting machine includes a frame, a comminuting rotor coupled to the frame, and a rotary drive coupled to the rotor. The rotary drive including a controller, a multi-phase motor connected to the controller, a set of contactors disposed between the controller and the multi-phase motor for selectively providing driving motive force to the multi-phase motor, and at least one rheostat disposed between the controller and the multi-phase motor, in parallel with the first set of contactors, for selectively providing a stopping resistance to the multi-phase motor to effect frictionless braking of the comminuting rotor, wherein the controller is configured to operate the set of contactors and the at least one rheostat to single phase lines of the multi-phase motor for providing the stopping resistance.

主权项

1. A comminuting machine comprising:
a frame; a comminuting rotor coupled to the frame; and a rotary drive coupled to the comminuting rotor, the rotary drive including a controller, a multi-phase motor connected to the controller, a set of contactors disposed between the controller and the multi-phase motor for selectively providing driving motive force to the multi-phase motor, and at least one load disposed between the controller and the multi-phase motor, and in parallel with the set of contactors, wherein the controller is configured to operate the set of contactors to reverse a magnetic field in the multi-phase motor through the at least one load.