Title:
ブラシレスモータ
Document Type and Number:
Japanese Patent JP6762610
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To reduce the deformation of a revolving shaft.SOLUTION: A cover member 50 includes a cylinder part 61 at the center of a lid part 51. A second sliding bearing 33 is fixed to the cylinder part 61. A revolving shaft 11 protrudes upward from the cylinder part 61 in a non-contact manner to the second sliding bearing 33. A first sliding bearing 32 is a main bearing which axially supports the revolving shaft 11 in the radial direction, whereas the second sliding bearing 33 is an auxiliary bearing which, when the revolving shaft 11 receives a load from the radial direction, receives the load in the radial direction together with the first sliding bearing 32. When the gradient angle of the revolving shaft 11 at the first sliding bearing 32 is not in a maximum state, the revolving shaft 11 is axially supported only by first sliding bearing 32 in such a manner that the revolving shaft 11 does not contact to the inside of the second sliding bearing 33. When a load is added to the revolving shaft 11, causing the revolving shaft 11 to start contacting to the second sliding bearing 33, the deformation of the revolving shaft 11 lies within the range from 0 to a maximum elastic deformation.SELECTED DRAWING: Figure 1
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Inventors:
Masahiro Nishidate
Application Number:
JP2016197840A
Publication Date:
September 30, 2020
Filing Date:
October 06, 2016
Export Citation:
Assignee:
Tokyo Parts Industry Co., Ltd.
International Classes:
H02K5/167; F16C17/02
Domestic Patent References:
| JP2007255457A | ||||
| JP2004116623A |