Title:
LINEAR ACTUATOR INTEGRATED WITH GEAR NONIUS ENCODER AND CONTROL METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2024/060971
Kind Code:
A1
Abstract:
A linear actuator integrated with a gear nonius encoder and a control method therefor. The linear actuator comprises a motor (9), a control circuit module, a gear nonius encoder, and a ball screw pair for pushing a push rod (15) to perform reciprocating motion. The gear nonius encoder comprises a synchronous belt (4), a nonius gear (2), nonius gear magnetic steel (6), a nonius gear magnetic encoding chip (8), a master gear magnetic encoding chip (7), master gear magnetic steel (5) and a master gear (3). The master gear (3) is assembled on a motor rotor shaft. The master gear (3) is rotatably connected to the nonius gear (2) by means of the synchronous belt (4). The master gear magnetic steel (5) and the nonius gear magnetic steel (6) are correspondingly mounted on the master gear (3) and the nonius gear (2), respectively. The master gear magnetic encoding chip (7) and the nonius gear magnetic encoding chip (8) are correspondingly placed below the master gear magnetic steel (5) and the nonius gear magnetic steel (6), respectively. The control circuit is electrically connected to the master gear magnetic encoding chip (7) and the nonius gear magnetic encoding chip (8) respectively, and reads single-turn angle values of the master gear (3) and the nonius gear (2) by means of the master gear magnetic encoding chip (7) and the nonius gear magnetic encoding chip (8) respectively. The nonius gear (2) is connected to the ball screw pair. The control circuit module is electrically connected to the motor (9).
Inventors:
HU HUAZHI (CN)
HU HAIHUI (CN)
LU XINGJIE (CN)
HU HAIHUI (CN)
LU XINGJIE (CN)
Application Number:
PCT/CN2023/116553
Publication Date:
March 28, 2024
Filing Date:
September 01, 2023
Export Citation:
Assignee:
EHANG INTELLIGENT EQUIPMENT GUANGZHOU CO LTD (CN)
International Classes:
H02K7/06; B64C13/50; H02K11/215; H02K11/33; H02P6/08; H02P6/17
Foreign References:
| CN115694055A | 2023-02-03 | |||
| CN109625249A | 2019-04-16 | |||
| CN113029206A | 2021-06-25 | |||
| CN111473075A | 2020-07-31 | |||
| CN112117863A | 2020-12-22 | |||
| CN114425690A | 2022-05-03 | |||
| US20100052663A1 | 2010-03-04 |
Attorney, Agent or Firm:
YOGO PATENT AND TRADEMARK AGENCY LIMITED COMPANY (CN)
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