Title:
ELECTRIC SPINDLE AND MOTOR
Document Type and Number:
WIPO Patent Application WO/2020/125061
Kind Code:
A1
Abstract:
An electric spindle and a motor; the electric spindle comprises a spindle core (1) and a bearing shaft core (15); the spindle core (1) is hollow, the bearing shaft core (15) is sleeved within the spindle core (1) by means of a bearing, a bearing outer ring of the bearing is fixedly connected to the spindle core (1), and a bearing inner ring of the bearing is fixedly connected to the bearing shaft core (15). The described electric spindle is capable of effectively solving the problem in which a bearing heats up and is severely worn out when an electric spindle is at a high rotational speed, which thereby increases the maximum rotational speed of the electric spindle.
Inventors:
HE ZHENTAO (CN)
GENG JIQING (CN)
LIU YONGLIAN (CN)
GENG JIQING (CN)
LIU YONGLIAN (CN)
Application Number:
PCT/CN2019/103504
Publication Date:
June 25, 2020
Filing Date:
August 30, 2019
Export Citation:
Assignee:
GREE ELECTRIC APPLIANCES INC ZHUHAI (CN)
International Classes:
H02K7/00; H02K7/08
Foreign References:
| CN109586498A | 2019-04-05 | |||
| CN209184392U | 2019-07-30 | |||
| CN1753283A | 2006-03-29 | |||
| JPH0670518A | 1994-03-11 | |||
| CN202026196U | 2011-11-02 | |||
| CN204733019U | 2015-10-28 |
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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