To apply precompression to bearings and suppress operation noise while suppressing an increase in weight.SOLUTION: The present invention comprises a stator 34 that is secured to an output shaft 82b, a housing 20 in which the output shaft 82b and the stator 34 are arranged in the inside, a bearing 60 that rotatably supports the output shaft 82b to the housing 20, and a retainer 50 that is interposed between the housing 20 and the bearing 60. The bearing 60 has an outer ring 61, an inner ring 62, and a plurality of rolling elements 63 that are arranged between the outer ring 61 and the inner ring 62. The retainer 50 has a cylindrical part 51 that is formed in shape of a cylinder, the inner circumferential surface of the cylindrical part 51 facing an outer circumferential surface 64 of the bearing 60, an outer circumferential surface 52 of the cylindrical part 51 facing an inner circumferential surface 22 of the housing 20. The cylindrical part 51 is attached to the bearing 60 by being restricted from moving to the outer ring 61 in the axial direction of the bearing 60, and the housing 20 is in contact with a face of the retainer 50 that faces the axial direction of the cylindrical part 51.SELECTED DRAWING: Figure 5
【課題】重量の増加を抑えつつ、軸受に予圧を与えて作動音を抑制すること。【解決手段】出力軸82bに固定されるステータ34と、内側に出力軸82bとステータ34とを配置するハウジング20と、出力軸82bをハウジング20に対して回転自在に支持する軸受60と、ハウジング20と軸受60との間に介在するリテーナー50と、を備え、軸受60は、外輪61と、内輪62と、外輪61と内輪62との間に配置される複数の転動体63とを有し、リテーナー50は、円筒状に形成される円筒部51を有し、円筒部51の内周面が軸受60の外周面64に対向し、円筒部51の外周面52がハウジング20の内周面22に対向し、円筒部51は、外輪61に対する軸受60の軸方向における移動が規制されて軸受60に取り付けられ、ハウジング20は、リテーナー50における円筒部51の軸方向に面する面に当接する。【選択図】図5
TORQUE SENSOR DEVICE AND STEERING DEVICE
トルクセンサ装置及び操舵装置
2024-04-02
Patent
Electronic Resource
Japanese