According to the mutual backup all-electric redundancy retraction electromechanical actuator with the lock, the safety margin is reliable, and the mutual backup all-electric redundancy retraction electromechanical actuator with the lock can be achieved through the following technical scheme that an auxiliary motor opposite to and corresponding to a main motor is arranged at the output end of a piston cylinder assembly; the auxiliary motor is meshed with a gear at the end of a lead screw sleeve assembled in the direction of the output end of the piston cylinder assembly through an auxiliary transmission gear, the axial necking cylinder is restrained in an annular groove in the inner wall of the piston cylinder assembly through bearings on the stepped end faces at the two ends, and a locking device for controlling the piston cylinder assembly to linearly move in place is arranged at the free end of the axial necking cylinder. The locking device moves linearly along a guide rail output from the bottom end of the EMA outer cylinder along with a lead screw nut sleeved with a lead screw sleeve, and two independent multi-redundancy transmission chains integrated by a piston cylinder assembly are formed. The main motor drives the main lead screw and the lead screw nut to rotate and move to the limit position of the bottom end of the lead screw sleeve along the guide rail, the piston cylinder assembly is pushed to retract, mechanical locking is achieved, and vice versa, mechanical unlocking is achieved.
本发明提出的一种互为备份全电余度带锁缩回机电作动器,安全裕度可靠,可以通过下述技术方案实现:在活塞筒组件的输出端设有相向对应主电机的副电机,副电机通过副传动齿轮与装配在活塞筒组件输出端方向的丝杠套筒筒端齿轮进行啮合,轴向缩颈筒通过两端阶梯端面上的轴承约束在活塞筒组件内壁环槽中,并且自由端上设有控制活塞筒组件线位移到位的锁定装置,该锁定装置跟随丝杠套筒套合的丝杠螺母,沿EMA外筒底端输出的导向轨道进行线位移,形成被活塞筒组件整合在一起的两条相对独立的多余度传动链;主电机带动主丝杠和丝杠螺母旋转,沿导向轨道运动到丝杠套筒底端极限位置,推动活塞筒组件作缩回运动,实现机械锁定,反之亦然地实现机械开锁。
Mutual backup all-electric redundancy lock retraction electromechanical actuator
互为备份全电余度带锁缩回机电作动器
2023-04-07
Patent
Electronic Resource
Chinese
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