Patent ID: 8997914
Filing Date: 2015-04-07
Classification: A01D,B60K,B60Y,F16H,Y10T

Abstract:
1. A work vehicle wherein on left and right sides of an input case, axle cases are respectively positioned to drive at least one of left or right traveling wheels, the input case forming a first enclosed space into which an input shaft for engine power transmission is introduced, the axle cases forming second enclosed spaces which are separate from each other and from the first enclosed space in which hydraulic continuously variable transmissions are respectively internally installed and supporting axles of the left or right traveling wheels, and the left or right traveling wheels being driven via the hydraulic continuously variable transmissions, a branch transmission shaft branch-transmitting a driving force of the input shaft to the hydraulic continuously variable transmissions in the axle cases is provided in the input case, an input case oil pump supplying reservoir oil reservoired in the input case to devices located within the input case to be supplied with the reservoir oil and an input case filter for filtering the reservoir oil circulating in the input case are provided in the input case, and first and second axle oil pumps supplying reservoir oil in each of the left and right axle cases to the hydraulic continuously variable transmission provided in each of the left and right axle cases and first and second axle case filters filtering the reservoir oil circulating in each of the axle cases are provided in each of the axle cases.