Provided is a wheel drive device (100, 200) capable of increasing an allowable radial load. A wheel drive device (100, 200) of a certain aspect includes an internal gear (16) that is integrated with a casing (21, 22, 23); an external gear (14); an eccentric body (12a) that oscillates the external gear (14) ; an output flange (18) that is disposed at a side portion in an axial direction of the external gear (14); a pin member (32, 33) that is supported by the output flange (18) and penetrates the external gear (14); and a first main bearing (24) that is disposed between the output flange (18) and the casing. A wheel (50) is connected to the output flange (18). An inner diameter of an inner ring (24n, 26n) of the first main bearing (24) is larger than an inscribed circle diameter of the pin member (32, 33).
本发明的目的在于提供一种能够加大容许径向载荷的车轮驱动装置。本发明的一种实施方式的车轮驱动装置(100)具备与外壳一体化的内齿轮(16)、外齿轮(14)、使外齿轮(14)摆动的偏心体(12a)、配置于外齿轮(14)的轴向上的侧部的输出凸缘(18)、被输出凸缘(18)支承并贯穿外齿轮(14)的销部件及配置于输出凸缘(18)与外壳之间的第1主轴承(24),其中,车轮(50)连结于输出凸缘(18),第1主轴承(24)的内圈的内径大于销部件的内接圆直径。
WHEEL DRIVE DEVICE
车轮驱动装置
2021-09-03
Patent
Electronic Resource
Chinese
WHEEL DRIVE DEVICE AND CARRIAGE INCLUDING WHEEL DRIVE DEVICE
European Patent Office | 2021
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