Locking assembly for a linear actuator

By combining ball nuts and locking rotors with a spring system and solenoid control, an electric actuation locking mechanism for the linear actuator is achieved, solving the problems of bulkiness and complexity of hydraulic locking mechanisms. This provides an electric locking assembly with automatic locking and independent control, meeting the needs of electric aircraft platforms.

CN122422673APending Publication Date: 2026-07-17WOODWARD INC

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
WOODWARD INC
Filing Date
2024-12-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The locking mechanisms of existing linear actuators typically employ bulky, expensive, and complex hydraulic devices that require frequent maintenance, making it difficult to meet the needs of electric aircraft platforms for electrically actuated locking mechanisms.

Method used

The locking assembly employs a combination of a ball nut and a locking rotor. The ball nut has a locking protrusion, and the locking rotor has a ridge-shaped protrusion. Locking and unlocking are achieved by aligning and misaligning the ridge-shaped protrusion with the locking protrusion. Combined with a spring system and solenoid control, automatic locking and independent control are realized.

Benefits of technology

A simple and reliable electrically actuated locking mechanism is provided, which can automatically lock in the absence of power, is independent of other parts of the system, prevents accidental deployment, reduces maintenance frequency, and meets the needs of electric aircraft platforms.

✦ Generated by Eureka AI based on patent content.

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Abstract

一种用于线性致动器的锁定组件的方法和系统。锁定组件包括滚珠螺母,该滚珠螺母具有从滚珠螺母的外周轴向延伸的一排或多排锁定突起。锁定转子环绕滚珠螺母,该锁定转子具有从内周轴向向内延伸的一排脊状突起。在锁定位置,脊状突起布置在锁定突起之间。在解锁位置,脊状突起布置在相邻的锁定突起之间。
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