Axle driving system

DETAILED DESCRIPTION In the axle driving system of the present invention, a first chamber and a second chamber are partitioned from each other within a sealed housing.
The first chamber contains a hydraulic non-stage transmission.
The second chamber contains axles and transmitting means for connecting the axles.
The upper portion of the sealed housing houses an oil storage tank which spans the first and second chambers.
The first and second chambers are provided with oil through-bores for oil to flow therethrough.
The oil storage tank is positioned above the first chamber so that oil fills the first chamber and covers the interior thereof.
Oil charge means are positioned in common in the oil storage tank for charging oil into the respective chambers.
Oil observation means for observing oil quantity, and a breather for ventilating outside air are also provided in the oil storage tank.
The first and second chambers are not in direct fluid communication with each other, so that the hydraulic non-stage transmission is not affected by foreign objects, such as, iron powder or air generated by the differential gear.
The breather improves durability and reliability and lowers the manufacturing cost of the hydraulic non-stage transmission.