To provide an in-wheel motor drive device which prevents insufficient lubrication of a motor side bearing (an outer board side bearing of a motor rotary shaft) while inhibiting deterioration of rigidity of a bearing holding part.SOLUTION: An oil passage (50) is disposed above an input shaft (32) in a space (20) located at the outer side of a partition wall (39b) of a casing (10) in a vehicle width direction and has at least one oil hole (59a) for flowing lubrication oil downward. A guide member (95) receives the lubrication oil flowing out from the oil hole (59a) and guides the oil to an outer peripheral surface of a bearing holding part (81). A guide hole (92) penetrates through the bearing holding part (81) from the outer peripheral surface of the bearing holding part (81) to an inner peripheral surface and guides the lubrication oil guided by the guide member (95) to a motor side bearing (27).SELECTED DRAWING: Figure 1
【課題】軸受保持部の剛性の低下を抑制しつつ、モータ側軸受(モータ回転軸のアウトボード側の軸受)の潤滑不足を防止する。【解決手段】オイル通路(50)は、ケーシング(10)の隔壁(39b)よりも車幅方向外側の空間(20)内において入力軸(32)よりも上方位置に配置され、潤滑油を下方に流出する少なくとも1つのオイル孔(59a)を有する。ガイド部材(95)は、オイル孔(59a)から流出した潤滑油を受けて、軸受保持部(81)の外周面に導く。誘導孔(92)は、軸受保持部(81)の外周面から内周面に向かって軸受保持部(81)を貫通し、ガイド部材(95)により導かれた潤滑油をモータ側軸受(27)に誘導する。【選択図】図1
IN-WHEEL MOTOR DRIVE DEVICE
インホイールモータ駆動装置
2019-08-08
Patent
Elektronische Ressource
Japanisch
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