Winch assembly

Details Winch assembly Winch assembly

B - Operations, Transporting

66

D

B66D 1/20 (2006.01) B65G 23/44 (2006.01) B66D 1/50 (2006.01)

Patent

CA 2082966

-16- ABSTRACT A winch assembly 10 includes a first transmission assembly rotatably connecting a motor 11 to a winch drum 20 comprising clutches 12, 16 adapted to rotatably engage an output shaft 13 of the motor 11 to a winch drum shaft 19 of the winch drum 20 to wind in cable 22 onto the winch drum 20 and to payout cable 22 from the winch drum 20 by disengagement of motor drive shaft 13 from winch drum shaft 19. The winch assembly 10 further includes a second transmission assembly comprising an overrun clutch 23 rotatably connecting winch drum shaft 19 to motor drive shaft 13 if and when the payout speed of cable 22 from drum 20 exceeds a predetermined value. The winch assembly 10 is particularly suited to control conveyor belt tension in relatively large conveyor belts by simple on/off control of the clutches 12, 16 in response to sensed conveyor belt tension.

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