US 12,323,036 B2
Rotating self-locking actuator
Xin Xu, Shaoxing (CN); and Ligang Chen, Shaoxing (CN)
Assigned to ZHEJIANG JIECANG LINEAR MOTION TECHNOLOGY CO., LTD., Shaoxing (CN)
Appl. No. 18/029,781
Filed by ZHEJIANG JIECANG LINEAR MOTION TECHNOLOGY CO., LTD., Zhejiang (CN)
PCT Filed Dec. 31, 2021, PCT No. PCT/CN2021/143590
§ 371(c)(1), (2) Date Mar. 31, 2023,
PCT Pub. No. WO2022/193787, PCT Pub. Date Sep. 22, 2022.
Claims priority of application No. 202120545158.2 (CN), filed on Mar. 16, 2021.
Prior Publication US 2023/0361649 A1, Nov. 9, 2023
Int. Cl. H02K 7/10 (2006.01); F16H 25/20 (2006.01)
CPC H02K 7/10 (2013.01) [F16H 25/2015 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A rotating self-locking actuator, comprising:
a housing,
a self-locking device, and
a motor shaft at least one end of which extends out of the housing, wherein the self-locking device comprises;
a pin rod;
a friction cap which is disposed outside the housing and sleeved over the motor shaft; and
an arc-shaped groove extending helically about an axial direction of the motor shaft, the arc-shaped groove being provided on a side wall of the friction cap;
wherein:
the pin rod rotates synchronously with the motor shaft and is sliding-fitted with the arc-shaped groove; and
the motor shaft causes the pin rod to rotate such that the friction cap is driven by the pin rod to move axially to contact the housing, thereby friction self-locking is enabled, and the friction cap is driven by the pin to move axially to detach from the housing, thereby the friction self-locking is released.