Cost configurable hystat drive system

摘要

A cost configurable drive system for machines having dual/tandem axle drive systems employs a split hystat power system. The system performance can be easily adjusted by the removal or installation of a planetary gear set and a clutch box. In this way, the system is configurable with components removed or substituted to allow for a less capable but lower cost offering, while allowing for very simple upgrade to a fully capable system.

主权项

1. A hydrostatically powered machine comprising:
a front set of ground engaging elements proximal to and supporting a front portion of the machine; a rear set of ground engaging elements proximal to and supporting a rear portion of the machine; at least one hydraulic pump; and a plurality of hydraulic motors selectively linked to the at least one hydraulic pump, the plurality of hydraulic motors including a front hydraulic motor configured to drive the front set of ground engaging elements and a rear hydraulic motor configured to drive the rear set of ground engaging elements, wherein the front hydraulic motor and the rear hydraulic motor are selectively mechanically linkable to one another, the front hydraulic motor configured to drive the front set of ground engaging elements via a planetary gear set, the planetary gear set including a ring gear, a sun gear, and a carrier, the front hydraulic motor configured to drive the ring gear, the sun gear configured to drive the front set of ground engaging elements, the rear hydraulic motor configured to drive a pinion linked to a spur gear for driving the rear set of ground engaging elements, the carrier selectively linkable to the spur gear via a clutch.