Novel linear electromechanical servo mechanism and assembling method

Abstract

Provided is a novel linear electromechanical servo mechanism and an assembling method. Each fixing frame (6) in the novel linear electromechanical servo mechanism is provided with four installing holes, wherein the stator shaft (1-1) of a linear motor (1) is fixedly installed in an installing hole, and slide rails (2) are fixedly installed in other two installing holes. The two slide rails (2) are installed symmetric about the stator shaft (1-1). A linear motor mover (1-2) passes through the stator shaft (1-1). A through hole is disposed on the center of a variable-centroid mass block (4). The variable-centroid mass block (4) is installed on the slide rails (2) via a carbon film lubrication linear bearing (3) installed in the through hole. The variable-centroid mass block (4) and the linear motor mover (1-2) are fixedly connected. The installing shaft (13-1) of a magnetostrictive displacement sensor (13) is fixedly installed in the fourth installing hole on the fixing frame (6). The magnet ring (13-2) of the magnetostrictive displacement sensor (13) is fixed to the variable-centroid mass block (4) via an installing flange (14).

Description

technical field [0001] The invention relates to the field of electromechanical servo, in particular to a linear electromechanical servo mechanism. Background technique [0002] As the main body of the flight control system of the aircraft, the servo system drives the deflection of the nozzle or rudder surface, adjusts the thrust direction of the aircraft engine, and makes the aircraft fly stably according to the command requirements. Its dynamic response speed, accuracy and reliability directly affect the dynamics of the aircraft flight process. quality. [0003] Traditional servo systems include pneumatic servo systems, hydraulic servo systems, and electric servo systems with rotating motors and transmission mechanisms. The pneumatic servo system has low working pressure, small output, poor stability, and low positioning accuracy; the hydraulic servo system is difficult to maintain, the system structure is complex, heavy, high cost, and technically difficult to implement; ...

AI Technical Summary

Problems solved by technology

[0005] The technical solution of the present invention is to provide a linear motor direct drive type electric actuator, through the integrated design of the mover and the mass center mass block, and the fixed form of the carbon film lubricated linear bearing + slide rail, it solves the problem of the traditional linear motor. Servo mechanism end effect and torque fluctuation problems, at the same time, to meet complex variable load and dynamic conditions

Images