Title:
ELECTRIC ACTUATOR
Document Type and Number:
Japanese Patent JP2019056459
Kind Code:
A
Abstract:
To enhance support rigidity with respect to components of a speed reducer in an electric actuator equipped with the speed reducer having an eccentric rotor.SOLUTION: An electric actuator 1 includes an electric motor 4, a stationary member 6, a speed reducer 5 transmitting rotation of the electric motor, an input rotation body 2 to which driving force is input from the outside, and an output rotation body 3 which is connected with the speed reducer 5 and can be relatively rotated with respect to the input rotation body 2. An internal gear 16 performing eccentric motion to a center O of the output rotation body 3, and a support member 15 rotated and driven by the electric motor 4 and supporting the internal gear 16 are provided in the speed reducer 5. The support member 15 is supported by a pair of rolling bearings 17, 18, and a preload is applied to the pair of the rolling beatings 17, 18, respectively.SELECTED DRAWING: Figure 1
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Inventors:
ISHIKAWA SHINTARO
ABE KATSUSHI
NAKATSUJI YUTA
ABE KATSUSHI
NAKATSUJI YUTA
Application Number:
JP2017182326A
Publication Date:
April 11, 2019
Filing Date:
September 22, 2017
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16C35/063; F01L1/352; F16C19/16; F16C19/56; F16C25/08; F16H1/32; H02K7/116
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Tsuyoshi Kumano