B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
241/19
B02C 25/00 (2006.01)
Patent
CA 1253123
SHREDDING APPARATUS INCLUDING OVERLOAD PROTECTION OF DRIVE LINE Abstract of the Disclosure Apparatus and method for its use for pro- tecting an electric motor and the mechanical drive line of a material comminuting machine of the type having intermeshing overlapping cutters on rotary shafts, against damage caused by overloading. A torque-limiting coupling located in the drive line between the motor and the cutter shafts is provided with rotation sensors on both the input and output sides of the torque-limiting coupling. A motor controller is responsive to signifi- cant differences in the amounts of rotation of the input and output sides of the torque-limiting coupling to stop the motor in case of excessive slippage, in order to protect the motor and the torque-limiting coupling. Where a current-sensing overload device is provided in the case of use of the device with an electric motor, the motor controller can be programmed to respond with sensitivity different from that of the electrical overload protection device.
510402
Oyen Wiggs Green & Mutala Llp
Shredding Systems Inc.
LandOfFree
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