Follow-up rotary valve-type reversing valve and follow-up reversing mechanism and follow-up reserving method

A reversing valve and follow-up technology, applied in the direction of mechanical equipment, fluid pressure actuators, servo motors, etc., can solve the problems of increasing structural complexity, avoid oil pipe fatigue, simplify valve control systems, and improve safety and reliability sexual effect

Active Publication Date: 2010-10-20
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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  • Abstract
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AI Technical Summary

Problems solved by technology

This kind of valve has the advantages of accurate action, high degree of automation, stable and reliable operation, etc., but generally requires additional drive and cont

Method used

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  • Follow-up rotary valve-type reversing valve and follow-up reversing mechanism and follow-up reserving method
  • Follow-up rotary valve-type reversing valve and follow-up reversing mechanism and follow-up reserving method
  • Follow-up rotary valve-type reversing valve and follow-up reversing mechanism and follow-up reserving method

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Example Embodiment

[0015] Follow-up rotary valve type reversing valve mechanism and installation layout are attached figure 1 , 2 , 3 shown. The working principle of the present invention is briefly described here.

[0016] The inside of the pressure-resistant housing 4 is a cavity, the rear end of the rotary valve core 2 goes deep into the pressure-resistant housing 4 and is fixedly connected with the cover 8 through bolts 6, and the second seal between the rotary valve core 2 and the front end of the pressure-resistant housing 4 Ring 3 is in sealing contact, and the third sealing ring 7 is in sealing contact between the mouth cover 8 and the rear end of the pressure-resistant housing 4; an annular cavity is formed between the rotating valve core 2 and the pressure-resistant housing 4; it is fixed on the rotating valve core 2 The first sub-cavity key 10 and the second sub-cavity key 11 divide the annular cavity between the rotary valve core 2 and the pressure-resistant housing 4 into two semi...

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Abstract

The invention relates to a follow-up rotary valve-type reversing valve, a follow-up reversing mechanism and a follow-up reserving method which belong to the field of aircraft front wheel turning mechanism operation actuator control valves. The valve comprises a rotary valve core (2), a pressure resistant shell (4), a flap (8), a sub-cavity button (10) and the like to form a main body structure; and the rotary valve core (2) and the pressure resistant shell (4) are respectively connected with a front wheel turning mechanism operation actuator and a front undercarriage pillar strut. In the valve, the rotation of the operation actuator directly drives the rotary valve core (2) to rotate, an oil circuit reversing function of a preset corner position can be realized without any external driving and control feedback circuit, and an oil circuit which communicates the head cavity and the tail cavity of the operation actuator is kept to rotate with the actuator. The reversing valve has stable mechanical movement, has compact structure, can effectively reduce the weight of a valve control system, and improve the reliability of the valve control system.

Description

technical field [0001] The invention relates to a follow-up rotary valve type reversing valve, a follow-up reversing mechanism and a follow-up reversing method, and belongs to the field of operating cylinder control valves of aircraft front wheel turning mechanisms. technical background [0002] As a common type of hydraulic control valve, the rotary valve type reversing valve has been widely used in petroleum and chemical production. This kind of valve has the advantages of accurate action, high degree of automation, stable and reliable operation, etc., but generally requires additional drive and control feedback loops, etc., which increases the complexity of its structure, and cannot meet the corresponding needs of some mechanical structures with special requirements. [0003] With the development of aviation technology, while the flight performance of large aircraft continues to improve, it also puts forward higher requirements for its ground handling performance. As one ...

Claims

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Application Information

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IPC IPC(8): F15B13/02F15B9/08
Inventor 聂宏张明米滨冯飞徐方舟
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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