Self-locking drive and linear actuator
AssigneeZhejiang Jiecang Linear Motion Technology Co., Ltd.
InventorsYujie CEN, Shiyi TANG
Life of this patent
Estimating the term…
Abstract
A self-locking drive, usable in a linear actuator, includes a housing and a drive shaft for outputting a driving force. An endcap is provided at an end portion of the housing. A self-locking mechanism configured to apply a self-locking force to the drive shaft is provided in the endcap. The self-locking mechanism includes a friction seat sleeved over the drive shaft and rotatable synchronously with the drive shaft, and a friction ring mounted in the endcap and secured to the endcap. The friction seat is interference-fitted with the friction ring to enable two-way self-locking to the drive shaft.
Claims6
A self-locking drive, comprising:
- a housing and a drive shaft for outputting a driving force, wherein:
- an endcap is provided at an end portion of the housing,;
- a self-locking mechanism configured to apply a self-locking force to the drive shaft is provided in the endcap;
- the self-locking mechanism comprises a friction seat sleeved over the drive shaft and rotatable synchronously with the drive shaft, and a friction ring mounted in the endcap and secured to the endcap, the friction seat being interference-fitted with the friction ring to enable two-way self-locking to the drive shaft;
- and
- the friction seat is secured on the drive shaft via a pin shaft, the pin shaft runs radially through the drive shaft, a mounting groove is provided at a side portion of the friction seat, and the pin shaft is mounted in the mounting groove by interference-fitting;
- and
- an avoidance end is provided at an end of the friction seat away from the mounting groove, the avoidance end having a gradually narrowed shape to avoid the endcap.
Dependencies are inferred from the claim text.