| 摘要 |
The present invention provides a final drive for a vehicle including a compound gear set comprising an input, an output and first and second epicyclic gear sets, each epicyclic gear set comprising a sun gear, at least one planet gear, a planet carrier and a ring gear. The sun gear of the first epicyclic gear set in the final drive is rotatably coupled with the ring gear of the second epicyclic gear set. The final drive finds particular application in tracked vehicles which must be able to operate at both low torque, high speed and high torque, low speed conditions, for example in earth moving applications. Use of one or more final drives in a tracked vehicle gives the ability to operate in these two conditions without the need for potentially complicated and expensive modification of the tracked vehicle's present transmission.
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