Belted crawler having auxiliary drive wheel

Details Belted crawler having auxiliary drive wheel Belted crawler having auxiliary drive wheel

B - Operations, Transporting

62

D

305/51

B62D 55/12 (2006.01) B60K 17/10 (2006.01) F16H 61/46 (2006.01)

Patent

CA 1317991

BELTED CRAWLER HAVING AUXILIARY DRIVE WHEEL Abstract of the Disclosure A crawler having a friction driven elastomeric belted track which is driven by rear mounted main drive wheels and front mounted auxiliary drive wheels. The auxiliary drive wheels are operatively coupled through hydraulic clutches to hydraulic motors that are fluidically coupled to a reversible variable displacement pump. An electronic controller controls the output of the pump so that the auxiliary drive wheels are driven at a speed less than the main drive wheels in the forward direction at a speed equal to or greater than the speed of the main drive wheels in the reverse direction. A valve assembly selectively couples and decouples the hydraulic clutches for engaging and disengaging the motor when turning the vehicle.

593616

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