Title:
DIRECT DRIVE MOTOR
Document Type and Number:
WIPO Patent Application WO/2022/124073
Kind Code:
A1
Abstract:
This direct drive motor is provided with a fixed shaft, a bearing unit which comprises an inner ring which mates with the fixed shaft, an output shaft which mates with an outer ring of the bearing unit, a first restricting member which is arranged in a first direction of the inner ring, a second restricting member which is arranged in the first direction of the outer ring, and a motor unit. The fixed shaft comprises a first main body which mates with the inner ring, a first contact part which contacts the inner ring in a second direction, a base contact part which contacts a base, and a first female screw hole where a first fastening member is screwed in. The output shaft comprises a second main body which mates with the outer ring, a second contact part which contacts the end surface of the outer ring in the second direction, a cylindrical attachment unit which has a first-direction end surface that protrudes in the first direction beyond the second restricting member, and a second female screw hole where a second fastening member is screwed in. The first restricting member is fastened to the first main body and contacts the first-direction end surface of the inner ring, and the second restricting member is fastened to the second main body and contacts the first-direction end surface of the outer ring.
Inventors:
MARUYAMA MASAYUKI (JP)
FUKUYAMA KENICHI (JP)
TAGUCHI TOSHIFUMI (JP)
FUKUYAMA KENICHI (JP)
TAGUCHI TOSHIFUMI (JP)
Application Number:
PCT/JP2021/042967
Publication Date:
June 16, 2022
Filing Date:
November 24, 2021
Export Citation:
Assignee:
NSK LTD (JP)
International Classes:
F16C35/063; F16C35/067; F16C35/07; H02K5/173
Foreign References:
| JP2003299299A | 2003-10-17 | |||
| JP2002125345A | 2002-04-26 | |||
| JP2002343015A | 2002-11-29 | |||
| JP2000217298A | 2000-08-04 |
Attorney, Agent or Firm:
SAKAI INTERNATIONAL PATENT OFFICE (JP)
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