H - Electricity – 02 – K
Patent
H - Electricity
02
K
310/34, 201/87
H02K 49/10 (2006.01) B65G 13/06 (2006.01) B65G 47/26 (2006.01)
Patent
CA 1183566
MAGNETIC COUPLING ASSEMBLY FOR ACCUMULATING POWER ROLL CONVEYOR ABSTRACT OF THE DISCLOSURE A magnetic coupling assembly for driving a conveyor roll from a power drive while automatically disengaging the conveyor roll from the power drive when an accumulation occurs of the parts being transported by the conveyor. In one embodiment, a drive sprocket and conveyor roll are mounted on a fixed axle between a pair of spaced conveyor side rails. The conveyor roll includes a tube portion having a permanent magnet mounted therein and the drive sprocket includes a sprocket hub having a field face member secured to one of its ends in opposing relationship to the permanent magnet. By varying the air gap between the permanent magnet and field face member, the torque capacity is varied, thereby permitting slippage between the drive sprocket and conveyor roll at different torque levels. The sprocket hub is slidable on a bearing cartridge assembly and the field face member is slidable on a thrust tube in response to operation of an adjustment member for varying the air gap between the permanent magnet and field face member. Long service life is possible with minimum maintenance because of the total bearing construction. In another form of the invention, the drive sprocket is mounted outboard of the conveyor side rails. In this embodiment, the drive sprocket and conveyor roll are mounted on a rotatable axle with the basic components for the magnetic coupling assembly being the same as for the first embodiment.
415594
Frayne & Company Robert
Tri-Veyor Corp.
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