The invention provides a technology capable of reducing the risk of lubricant leakage. A wheel drive device is provided with a speed reduction mechanism for reducing the speed of rotation transmitted from a drive source; a rotating member to which the rotation decelerated by the deceleration mechanism is transmitted, the rotating member rotating together with a wheel; a fixed member that rotatably supports the rotating member; and a first oil seal that seals a space in which the speed reduction mechanism is accommodated, the outer member being provided with an extension portion that extends radially inward beyond the outermost diameter portion of the inner member when the member disposed radially outward of the rotating member and the fixed member is defined as the outer member and the member disposed radially inward is defined as the inner member, and the first oil seal being disposed between the inner peripheral surface of the extension portion and the inner member.
本发明提供一种能够降低润滑剂泄漏的风险的技术。一种车轮驱动装置,其具备:减速机构,将从驱动源传递过来的旋转进行减速;旋转部件,被减速机构减速后的旋转被传递到该旋转部件,并且该旋转部件与车轮一同进行旋转;固定部件,将旋转部件支承为旋转自如;以及第1油封,密封容纳减速机构的空间,其中,在将旋转部件和固定部件中的配置在径向外侧的部件设为外侧部件并将配置在径向内侧的部件设为内侧部件时,外侧部件具备超过内侧部件的最外径部而朝向径向内侧延伸的延伸部,第1油封配置在延伸部的内周面与内侧部件之间。
Wheel driving device
车轮驱动装置
2021-09-14
Patent
Electronic Resource
Chinese
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 |
WHEEL DRIVING DEVICE AND WHEEL DRIVING DEVICE MAINTENANCE METHOD
European Patent Office | 2021
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