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Electrically-driven nose wheel steering device for unmanned aerial vehicle

A front wheel turning and electromechanical technology, applied in the field of aircraft landing gear, achieves the effect of simple structure, high reliability and maintainability, and light weight

Active Publication Date: 2015-12-23
CHINA ACAD OF LAUNCH VEHICLE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to overcome the deficiencies of the prior art, provide a small unmanned aerial vehicle electric drive front wheel steering device, and solve the problem of light and small electric drive front wheel steering device in the landing gear of small unmanned aerial vehicle

Method used

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  • Electrically-driven nose wheel steering device for unmanned aerial vehicle
  • Electrically-driven nose wheel steering device for unmanned aerial vehicle
  • Electrically-driven nose wheel steering device for unmanned aerial vehicle

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Embodiment Construction

[0029] see figure 1 The electric drive front wheel turning device includes a turning drive steering gear 1, a turning torque arm 2, a connecting rod assembly 3, and a rotating drum assembly 4 to form a turning drive mechanism, and also includes an angular displacement measuring mechanism installed on the outer cylinder of the front landing gear.

[0030] Such as figure 1 As shown, the turning driving steering gear 1 is fixedly installed on the landing gear outer cylinder 6 by bolts; the output shaft 5 of the turning driving steering gear 1 and the turning torque arm 2 are assembled together by bolts, when the turning driving steering gear 1 output shaft 5 When turning, the turning torque arm 2 follows the turning and drives the output shaft 5 of the steering gear to rotate, the turning torque arm 2 drives the connecting rod assembly 3 to move, and the movement of the connecting rod assembly 3 is transmitted to the rotary drum assembly 4, and the rotary drum assembly 4 passes t...

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Abstract

The invention relates to an electrically-driven nose wheel steering device for an unmanned aerial vehicle. The electrically-driven nose wheel steering device comprises a steering drive actuator, a steering torque arm, a link assembly and a drum assembly, wherein a motor in the steering drive actuator drives an output shaft to rotate through a transmission mechanism; the steering torque arm rotates along with the output shaft, the steering torque arm is connected to the link assembly through a knuckle bearing, and the link assembly drives the drum assembly to rotate; and the drum assembly is connected with an upper torque arm of an undercarriage torque arm, and drives nose wheels to steer through the undercarriage torque arm. The electrically-driven nose wheel steering device disclosed by the invention is driven by the motor, has the advantages of being light in weight, high in reliability and maintainability, and the like, as well as is more applicable to undercarriage systems of small and medium-sized unmanned aerial vehicles. The electrically-driven nose wheel steering device disclosed by the invention is obtained through an improvement on the basis of the existing undercarriage structure, and an undercarriage does not need to be re-designed, thus avoiding the high cost brought by the re-designing.

Description

technical field [0001] The invention relates to an electrically driven front wheel turning device for an unmanned aerial vehicle, which is used for the front landing gear of a small unmanned aerial vehicle to provide the turning correction capability during landing and rolling, and belongs to the technical field of aircraft landing gear. Background technique [0002] The nose wheel steering device is the executive mechanism for the nose wheel steering and deflection control of the aircraft landing gear system during the landing roll. The traditional aircraft front wheel steering device is driven by hydraulic pressure, which is characterized by the need for hydraulic power source support from the aircraft, and is a hybrid system of mechanical and hydraulic drive. The hydraulic power source is usually heavy, and the hydraulically driven front wheel steering device has a risk of leakage, complex maintenance, and high cost. It is not suitable for small UAVs without a full-machin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/50
Inventor 孔文秦徐方舟王悦王涛张庆利石小亮贾磊彭波姚世东李永俊陈飞
Owner CHINA ACAD OF LAUNCH VEHICLE TECH
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