An external integrated displacement sensor installation mechanism adapted to electromechanical actuators

Abstract

The invention belongs to the technical field of aerospace servo systems, and particularly relates to an external integrated displacement sensor mounting mechanism adapting to an electromechanical actuator. The mechanism comprises a deep groove ball bearing, a first guide column, a resistor assembly, an electric brush assembly, a second guide column, a sliding block, a piston rod, a sealing ring and an anti-attrition ring, the deep groove ball bearing and the guide column are installed, and the electric brush assembly is installed between a displacement sensor sheet and the sliding block; brushwires of the electric brush assembly are in contact with the resistor assembly; a sliding block is installed in the displacement sensor and fixedly connected with the extending part of the guide column through a sealing ring, and the displacement sensor is integrally installed on a shell of the electromechanical actuator and can independently conduct adjustment and other operations. The mechanismcan be applied to various electromechanical actuators, the structural reliability and stability of the product are improved, and the cost is reduced while the environmental adaptability of the product is improved; and meanwhile, the mechanism can be popularized and applied to an electromechanical actuator with the mechanism, and the machining difficulty caused by the fact that a split type platedisplacement sensor needs to be installed on an actuator shell is reduced.

Description

technical field [0001] The invention belongs to the technical field of aerospace servo systems, and in particular relates to an external integrated displacement sensor installation mechanism adapted to electromechanical actuators. Background technique [0002] At present, the electromechanical servo actuator scheme is widely used in the series of aerospace vehicles; in recent years, with the continuous improvement of the reliability of electronic products, the application in aerospace electromechanical servo systems has become more and more extensive, and a large number of servo systems have adopted Electromechanical servo actuator solutions. [0003] This type of electromechanical servo actuator is mainly composed of lug assembly, permanent magnet synchronous servo motor (including resolver), flat key, ball screw actuator, displacement sensor, bolt head assembly, etc. The electromechanical actuator mainly sends position control instructions to the servo motor according to ...

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Problems solved by technology

[0006] The technical problem to be solved in the present invention is: to overcome the deficiencies of the prior art, such as high structural complexity, high processing difficulty, complicated zero adjustment, and high cost, and propose an external integrated displacement sensor installation mechanism suitable for electromechanical actuators

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