发明名称 |
DIRECT DRIVE MOTOR, POSITIONING DEVICE, MECHANICAL DEVICE, AND HOUSING COMPONENT |
摘要 |
PROBLEM TO BE SOLVED: To provide a DD (direct drive) motor that can have a flat structure while suppressing footprints at a minimum level.SOLUTION: A direct drive motor comprises: a motor part 2 giving a rotation torque to an output shaft S; a bearing 4 freely rotatably supporting the output shaft; a rotation detector (a resolver) 6 detecting a rotation state of the motor part; and a housing 8 positioning and fixing the motor part, the bearing, and the rotation detector so as to be arranged in an output shaft direction to a motor installation surface B. The motor part is configured of: a stator 2a always maintained in a static state; and a rotor 2b arranged so as to be rotatably opposed to the stator. The housing includes a motor housing (a housing inner) 8a to which the stator is fixed, and a motor rotor (a rotor flange) 8b to which the rotor is fixed, and these make double substantially-cylindrical structures arranged coaxially and having different diameters. Each of the housing inner and the rotor flange is molded in a body without a gap in an extending direction of the cylinder. |
申请公布号 |
JP2015053859(A) |
申请公布日期 |
2015.03.19 |
申请号 |
JP20140255742 |
申请日期 |
2014.12.18 |
申请人 |
NSK LTD |
发明人 |
KOIZUMI KAZUNORI;MARUYAMA MASAYUKI;WATANABE ITSUO |
分类号 |
H02K5/173;H02K7/08;H02K11/00;H02K24/00 |
主分类号 |
H02K5/173 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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