PROBLEM TO BE SOLVED: To provide an in-wheel motor drive unit having a structure in which an inclination of a wheel hub is hardly transmitted to a gear shaft of a reduction gear even if the wheel hub is inclined due to the application of a large moment load to the wheel bub.SOLUTION: An in-wheel motor drive unit comprises: a motor part A which generates a drive force; a reduction gear B composed of a plurality of gears which reduce the rotation of the motor part A, and output it; and a wheel hub C which transmits the output from the reduction gear B to a drive wheel. A drive shaft 30 for transmitting the output from the reduction gear B to the wheel hub C is arranged integrally with the hub wheel 41 or separately from the hub wheel, tooth faces 31, 32 for transmitting power are formed at an end face of the drive shaft 30 of the hub wheel 41 at the reduction gear B side, and at an axial end face of a final gear 24 constituting the reduction gear B at the wheel hub C side, the tooth face 31 of the drive shaft 30 of the hub wheel C and the tooth face 32 of the final gear 24 of the reduction gear B abutting on the tooth face 31 are engaged with each other so as to oscillate, and thus an inclination of the drive shaft 30 of the hub wheel C is not transmitted to a gear shaft of the final gear 24 of the reduction gear B.SELECTED DRAWING: Figure 1
【課題】車輪ハブに大きなモーメント荷重が加わって車輪ハブが傾いても、その傾きが、減速機の歯車軸に伝達され難い構造のインホイールモータ駆動装置を提供する。【解決手段】駆動力を発生させるモータ部Aと、モータ部Aの回転を減速して出力する複数の歯車からなる減速機Bと、減速機Bからの出力を駆動輪に伝える車輪ハブCとを備え、前記車輪ハブCに減速機Bからの出力を伝達する駆動軸30を、ハブ輪41と一体又は別体に設け、前記ハブ輪41の駆動軸30の減速機B側の端面と、減速機Bを構成する車輪ハブC側の最終歯車24の軸端面とにそれぞれ動力を伝達するための歯面31、32を形成し、前記ハブ輪Cの駆動軸30の歯面31とこの歯面31に当接する減速機Bの最終歯車24の歯面32とを互いに揺動可能に係合させることにより、ハブ輪Cの駆動軸30の傾きが減速機Bの最終歯車24の歯車軸に伝達されないようにした。【選択図】図1
IN-WHEEL MOTOR DRIVE UNIT
インホイールモータ駆動装置
2016-07-11
Patent
Electronic Resource
Japanese
IPC: | B60K Anordnung oder Einbau von Antriebseinheiten oder von Kraft- bzw. Drehmomentübertragungen in Fahrzeugen , ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES / B60B VEHICLE WHEELS , Räder für Fahrzeuge / F16D COUPLINGS FOR TRANSMITTING ROTATION , Nicht schaltbare Kupplungen |