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Electric steering engine

A technology of electric steering gear and steering gear, which is applied in the direction of aircraft transmission, aircraft power transmission, aircraft power device, etc., can solve the problems of poor transmission stiffness, influence of motor performance, low support stiffness, etc., to improve support stiffness and improve The overall stiffness and the effect of ensuring the stiffness of the connection

Active Publication Date: 2014-01-22
BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the harmonic cam, the output rigid wheel and the output shaft of the steering gear are mostly separated, and the transmission rigidity is relatively poor.
This limits the dynamic response of the steering gear system
[0005] The servo motor is the power and control part of the electric steering gear. The first-stage transmission of the output shaft is usually a bevel gear, and the connection design between the output shaft of the motor and the bevel gear is also a weak point, and the support rigidity is low. , which seriously affects the performance of the motor

Method used

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0023] figure 1 It is a structural schematic diagram of an electric steering gear provided by the present invention, which includes a motor 1, a harmonic cam 2, a flexible spline 2a, an end cover 3, a first bearing 4, and an output shaft of the steering gear (output rigid wheel) 5 , Potentiometer output shaft 6, transition block 7, first adjusting gasket 8, second bearing 9, second adjusting gasket 10, input rigid wheel 11, housing 12, feedback potentiometer 13, angular contact bearing 14, the first Three bearings 15, limit sleeve 16, retaining ring 17, first bevel gear 18, pin 19, second bevel gear 20, potentiometer pressure plate 21, bearing baffle plate 22, connecting screw 23.

[0024] figure 2 It is a schematic diagram of the flexible connection structure between the potentiometer output shaft 6 of the feedback potentiometer 13 and the...

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Abstract

The invention belongs to the technical field of control plane control of aircrafts, and particularly discloses an electric steering engine. A shell and an end cover form a cavity, a steering machine output shaft is arranged in the cavity and comprises a steel wheel and a first output shaft positioned in the steel wheel, the steel wheel is positioned in the end cover, one end of the first output shaft is positioned in the shell, the other end of the first output shaft is positioned in the end cover, a harmonic cam is sleeved between one end of the first output shaft and the steel wheel, an input rigid wheel is sleeved on the harmonic cam, a second bevel gear is also sleeved on the steel wheel, the side wall of the second bevel gear is in fit with the side wall of the harmonic cam, the second bevel gear is fixedly connected with the harmonic cam, a motor output shaft is positioned in the shell, the first bevel gear is sleeved outside the motor output shaft, the second bevel gear is meshed with the first bevel gear through a gear, and a potentiometer output shaft of a feedback potentiometer is nested in the first output shaft. According to the steering machine, the connection rigidity can be ensured when the flexible connection is realized, and the reliability of the steering machine and the dynamic response of a steering machine system are improved.

Description

technical field [0001] The invention belongs to the technical field of aircraft rudder surface control, and in particular relates to an electric steering gear applied to aircraft rudder surface control. Background technique [0002] Electric steering gear, as the executive mechanism for rudder surface control of general low and near-altitude aircraft, has developed rapidly in recent years. An electric steering gear is generally composed of key components such as a motor, a transmission mechanism, and a feedback potentiometer. The design of the connection structure between them plays an important role in improving the overall performance of the electric steering gear. [0003] The feedback potentiometer is used to measure the swing angle of the output shaft of the electric steering gear, which is used for the closed-loop control of the electric steering gear, and its reliability is very important. At present, the output shaft of the feedback potentiometer and the output shaf...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C13/50
Inventor 张龙田胜利聂振金王取王春侠
Owner BEIJING RES INST OF PRECISE MECHATRONICS CONTROLS
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