Title:
電動アクチュエータ
Document Type and Number:
Japanese Patent JP7175821
Kind Code:
B2
Abstract:
To enhance rigidity of a speed reducer, and to prevent deterioration in efficiency of an electric actuator.SOLUTION: A differential device 5 of an electric actuator 1 includes a drive rotor 2, a driven rotor 3 and a planetary rotor 52. Between the planetary rotor 52 and the drive rotor 2, a first speed reducer 5a is formed, and between the planetary rotor 52 and the driven rotor 3, a second speed reducer 5b is formed. The electric actuator 1 includes: a first bearing 53 for supporting the planetary rotor 52 inside a rotor 42 of an electric motor 4; and a second bearing 54 for supporting the planetary rotor 52 at a position deviated in the axial direction so as not to be overlapped with the rotor 42. The second bearing 54 is constituted by a deep groove ball bearing.SELECTED DRAWING: Figure 1
Inventors:
Shintaro Ishikawa
Takahide Saito
Takahide Saito
Application Number:
JP2019059054A
Publication Date:
November 21, 2022
Filing Date:
March 26, 2019
Export Citation:
Assignee:
ntn corporation
International Classes:
F16H1/32; F01L1/356; F16C19/06; F16C19/46; F16C19/54; F16H1/10; F16H57/021; H02K7/116
Domestic Patent References:
| JP2016211443A | ||||
| JP2018194151A |
Attorney, Agent or Firm:
Kunihiko Shiromura
Tsuyoshi Kumano
Junya Yamamoto
Tsuyoshi Kumano
Junya Yamamoto