Drive mechanism for a four wheel drive electrified vehicle
AssigneeDeere & Company
InventorSteven R. Whiteman
Life of this patent
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Abstract
A rear mechanism for a work machine includes first and second spring housings operably engaged by one or more springs. The first and second spring housings are assembled with an endcap housing between first and second clutch packs that engage a rear axle of the work machine. A first cavity is formed between the first and second spring housing, and a second cavity is formed between the first housing and the endcap housing. Pressurizing the first cavity compresses the springs and releases a park brake of the work machine to enable front wheel drive of the work machine. While pressurizing the first cavity, the second cavity is pressurized such that the first spring housing compresses the first clutch pack to enable four wheel drive of the work machine.
Claims8
A rear clutch mechanism mounted on a rear axle shaft of a work vehicle, the rear clutch mechanism comprising:
- a first clutch pack configured for operable engagement with the rear axle shaft;
- a second clutch pack configured for operable engagement with the rear axle shaft;
- a first spring housing assembled with a second spring housing, wherein the first and second spring housings are configured to move relative to each other, the first spring housing positioned adjacent the first clutch pack, the second spring housing positioned adjacent the second clutch pack;
- a first cavity defined between the assembled first and second spring housings, the first cavity fluidly connected to a hydraulic hose to receive hydraulic fluid to increase hydraulic pressure therein;
- and
- when the first cavity contains hydraulic fluid, the first spring housing moves away from the first clutch pack and the second spring housing moves away from the second clutch pack such that the first and second clutch packs are released from operable engagement with the rear axle shaft.
Dependencies are inferred from the claim text.