WHEEL DRIVING DEVICE

摘要

PROBLEM TO BE SOLVED: To provide a wheel driving device which recovers impurities from a lubrication oil gathering in an oil tank to inhibit the impurities from circulating.SOLUTION: The invention includes: a motor part A which generates a driving force; a reduction gear B which reduces a speed of rotation of the motor part A to output the rotation; a wheel hub C which transmits output of the reduction gear B to a driving wheel; an oil tank 41 which stores a lubrication oil for lubricating the motor part A therein; and an oil pump 42 which suctions the lubrication oil from the oil tank 41 and supplies the lubrication oil to the motor part A to lubricate and cool the motor part A. An accumulation part 48 configured to accumulate impurities in the lubrication oil and formed by grooves is provided at a bottom part 41a of the oil tank 41 to inhibit the impurities from being suctioned into the oil pump 42.SELECTED DRAWING: Figure 1