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A braking method for an electro-hydraulic brake valve of an unmanned aerial vehicle landing gear

A landing gear and unmanned aerial vehicle technology, applied in the field of aircraft design and fluid transmission, to achieve the effects of improved accuracy and efficiency, easy installation and maintenance, and simple structure

Active Publication Date: 2020-06-09
BEIJING INST OF SPECIALIZED MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is: how to provide a braking method for a novel electro-hydraulic brake valve of the landing gear of an unmanned aerial vehicle, so as to avoid the frictional damage of the existing brake valve due to the frequent passage of sealing parts, which will affect the performance of the brake valve. The problem of tightness and service life, and overcome the influence of the existing brake valve on its response speed, accuracy and energy loss due to the intermediate mechanical transmission link

Method used

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  • A braking method for an electro-hydraulic brake valve of an unmanned aerial vehicle landing gear
  • A braking method for an electro-hydraulic brake valve of an unmanned aerial vehicle landing gear
  • A braking method for an electro-hydraulic brake valve of an unmanned aerial vehicle landing gear

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Embodiment Construction

[0030] In order to make the purpose, content, and advantages of the present invention clearer, the specific implementation manners of the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0031] The present invention provides a braking method for an electro-hydraulic brake valve of a UAV landing gear. The method is realized based on an electro-hydraulic brake valve, such as figure 2 As shown, the electro-hydraulic brake valve includes an oil storage cup 1, a housing 3, a bushing 5, a gland 6, an end cap 8, a piston rod 9, a voice coil motor 10, a screw 11, a limit support 13, a limit Rod 14, sleeve 15, limit spring 16, cone valve assembly 19, nozzle 21, pressure sensor 22, retaining ring 24, O-rings of different specifications, gaskets, etc.

[0032]Wherein, the oil storage cup 1 is installed on the housing 3 through threaded connection, and is sealed by the gasket 2; The ring 4 is sealed, and the tai...

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Abstract

The invention relates to a braking method of an electro-hydraulic brake valve of an unmanned aerial vehicle landing gear, which relates to the technical fields of aircraft design and fluid transmission. The invention can avoid the problem that the existing brake valve is easy to be damaged by friction due to frequent through-holes of the sealing member, Moreover, the brake valve has the advantagesof simple structure, easy installation and maintenance, and can remarkably improve the control precision, transmission efficiency and seal reliability of the brake valve, so as to ensure the flight safety of the unmanned aerial vehicle.

Description

technical field [0001] The invention relates to the technical fields of aircraft design and fluid transmission, in particular to a braking method for an electro-hydraulic brake valve of an unmanned aerial vehicle landing gear. Background technique [0002] UAV landing gear plays an important role in UAV takeoff and landing, landing roll and ground taxiing. Generally speaking, the UAV landing gear mainly includes wheels, shock absorbers, retractable systems, turning swing reduction systems and braking systems. Among them, the braking system is an important braking device of the UAV, which absorbs the kinetic energy of the UAV sliding during the landing and taxiing stages of the UAV, so that the UAV can quickly reduce the speed and achieve the purpose of shortening the sliding distance. Due to the short duration of UAV landing braking, the complex working environment, and the influence of various external and internal uncertain factors, the braking system must be able to work...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F15B15/00F15B13/02B64C25/44B60T13/12B60T13/74B60T15/02
CPCB60T13/12B60T13/74B60T15/02B64C25/44
Inventor 张振华吴向阳李春萍王飞李大让徐磊
Owner BEIJING INST OF SPECIALIZED MACHINERY