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    • 72. 发明公开
    • DEVICE FOR DRIVING IN-WHEEL MOTOR
    • VORRICHTUNG ZUR ANSTEUERUNG EINES RADMOTORS
    • EP3023654A1
    • 2016-05-25
    • EP14825895.7
    • 2014-06-30
    • NTN Corporation
    • SUZUKI, MinoruUOZUMI, Tomohisa
    • F16C19/06B60K7/00F16C33/32F16C33/62
    • B60K7/0007B60K17/046B60K2007/0038B60K2007/0092B60L2220/44B60L2220/46B60L2240/421B60Y2306/03F16C19/06F16C25/08F16C33/32F16C33/62F16C2204/66F16C2204/70F16C2326/02F16C2361/61Y02T10/642
    • Provided is an in-wheel motor drive device (21) including a motor part (A), a speed reduction part (B), a wheel bearing part (C), and a casing (22) configured to hold those parts. The motor part (A) is configured to rotationally drive an input shaft (25) of a speed reducer having eccentric portions (25a, 25b). The speed reduction part (B) is configured to reduce a speed of rotation of the input shaft (25) of the speed reducer to transmit the rotation to an output shaft (28) of the speed reducer. The wheel bearing part (C) is connected to the output shaft (28) of the speed reducer. The speed reduction part (B) includes a lubrication mechanism for the speed reduction part, which is configured to supply lubricating oil to the speed reduction part (B). Rolling bearings (37a, 37b) configured to support the input shaft (25) of the speed reducer are ball bearings each having an initial radial internal clearance (δ) of from 10 µm to 60 µm.
    • 本发明提供一种电动机部件(A),减速部件(B),车轮轴承部件(C)以及被构造成容纳这些部件的壳体的轮毂电动机驱动装置。 马达部件(A)被构造为旋转地驱动具有偏心部(25a,25b)的减速器的输入轴(25)。 减速部(B)被构造为降低减速器的输入轴(25)的旋转速度,以将旋转传递到减速器的输出轴(28)。 车轮轴承部(C)与减速机的输出轴(28)连接。 减速部(B)包括用于减速部的润滑机构,其构造成向减速部(B)供给润滑油。 被配置为支撑减速器的输入轴(25)的滚动轴承(37a,37b)是各自具有10μm至60μm的初始径向内部间隙(')的滚珠轴承。