Asymmetric air bearing for built-in pitching mechanism

A technology of air bearings and pitching mechanisms, applied in the field of bearings, can solve the problems of asymmetric air bearings with few structures and only in the research and development stage

Active Publication Date: 2021-04-30
UNIV OF SCI & TECH BEIJING +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the research on asymmetric air bearing structure based on the built-in pitching mechanism is very rare at home and abroad, and most of the research is only in the research and development stage.

Method used

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  • Asymmetric air bearing for built-in pitching mechanism
  • Asymmetric air bearing for built-in pitching mechanism
  • Asymmetric air bearing for built-in pitching mechanism

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Embodiment Construction

[0020] In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.

[0021] The invention provides an asymmetrical air bearing for a built-in pitch mechanism.

[0022] Such as figure 1 , figure 2 As shown, the system includes an air bearing and a strut 6. The air bearing includes a bearing housing 1, a bearing bush 2, a bearing stator 3, an upper end cover 4, and a lower end cover 5. The bearing bush 2 and the bearing stator 3 pass through an interference fit, and the air bearing The outside of the bearing is the bearing shell 1, the upper end cover 4 and the lower end cover 5 are respectively fixed and installed on both ends of the bearing shell 1 by bolts; one end of the bearing shell 1 has a hole for connecting the strut 6 with the air bearing, and the other end of the strut 6 is set Pneumatic connector 7, and conne...

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Abstract

The invention provides an asymmetric air bearing for a built-in pitching mechanism, and belongs to the technical field of bearings. The bearing system comprises an air bearing and a supporting rod, wherein the air bearing comprises a bearing shell, a bearing bush, a bearing stator, an upper end cover and a lower end cover, the bearing bush is in interference fit with the bearing stator, the bearing shell is arranged outside the air bearing, the upper end cover and the lower end cover are fixedly installed at the two ends of the bearing shell through bolts correspondingly, and the supporting rod is connected to the air bearing. The air bearing is of an asymmetric air bearing structure, and asymmetry of the air bearing is reflected in the aspects of asymmetric structure in the circumferential direction, uneven distribution of shallow cavities, unequal sizes, unequal depths, unequal diameters of throttling holes and the like, a radial air return hole and a fan-shaped groove with a certain opening angle are formed in the middle position of the air bearing in the direction of the supporting rod, and the static balance position of the asymmetric air bearing is adjusted by changing the size of the fan-shaped groove. Compared with an existing device, the air bearing has the advantages of being low in damping and large in dynamic bearing capacity.

Description

technical field [0001] The invention relates to the technical field of bearings, in particular to an asymmetric air bearing for a built-in pitch mechanism. Background technique [0002] In the initial stage of aircraft development, in order to reduce the risk and cost of aircraft development, it is necessary to conduct wind tunnel simulation tests on the aircraft to explore the aerodynamic performance of the aircraft. Since the beginning of the 21st century, the increasingly refined design and development requirements of aircraft have put forward higher requirements for the precision and test capabilities of the existing wind tunnel simulation. The traditional wind tunnel model technology suffers from many aspects such as excessive resistance and insufficient accuracy. Can not meet the development needs of modern aerospace, military aircraft field. Facing the challenge of accelerating the pace of development of various high-performance aircraft, it is urgent to improve the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16C32/06
CPCF16C32/0614F16C32/0603
Inventor 冯明陆天祥王雄
Owner UNIV OF SCI & TECH BEIJING
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