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Potential energy storage type protruding undercarriage buffer

A landing gear buffer and protruding technology, which is applied to shock absorbers, shock absorbers, gas-liquid shock absorbers, etc., can solve the problem that dust easily pollutes the working environment of the landing gear, the working reliability cannot be guaranteed, and the weight of the landing gear increases. and other problems, to achieve the effect of obvious protruding effect, short protruding time and reliable work.

Active Publication Date: 2012-05-30
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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AI Technical Summary

Problems solved by technology

The device needs to be equipped with a certain amount of explosives and a complex control system, and the energy generated by the explosion is not easy to control, and the dust generated after the explosion is also likely to pollute the working environment of the landing gear
This will increase the weight of the landing gear, and the reliability of the work cannot be guaranteed

Method used

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  • Potential energy storage type protruding undercarriage buffer
  • Potential energy storage type protruding undercarriage buffer
  • Potential energy storage type protruding undercarriage buffer

Examples

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Embodiment Construction

[0011] as attached figure 1 Shown is a schematic structural diagram of the potential energy storage type protruding undercarriage buffer pressure rod before being compressed downward. The piston rod 1 is set in the outer cylinder 9 from the bottom of the outer cylinder 9, moves axially relative to the outer cylinder 9, and is sealed with it; The ring piston 36 is composed of; the piston rod outer cylinder 39 has an oil hole 12 and a lower oil hole 11 on the side wall, the ring piston 36 has an oil return hole 14, and the piston rod outer cylinder 39 has an oil hole 12 on the outer wall. An oil return hole throttle valve 13 is also installed on the top; a floating piston 4 in the high-pressure chamber and a stop ring 5 that limits the highest position of the floating piston in the high-pressure chamber are installed at the lower end of the outer cylinder 39 of the piston rod; Mounting hole, the upper inner side wall is equipped with a limit ring 20; the above-mentioned limit d...

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Abstract

The invention discloses a potential energy storage type protruding undercarriage buffer, and belongs to airplane undercarriage buffers. The buffer comprises an outer cylinder (9), a piston rod (1), a central oil hole support (19), a pressure rod (25) and a limiting device (21). A control cavity (31) is formed above a middle supporting surface (33) and below the top of the outer cylinder (9); a low-pressure air cavity (35) is formed between the top of oil (40) and the middle supporting surface (33); a main oil cavity (8) is formed in the interior and the upper part of a piston rod outer cylinder (39) positioned on the upper part of a high-pressure cavity floating piston (4); an annular protruding oil cavity (10) is formed among an annular piston (36), the outside wall of the piston rod outer cylinder (39) and the inner wall of the outer cylinder (9); and a high-pressure air cavity (3) is formed between the high-pressure cavity floating piston (4) and the bottom of the piston rod outer cylinder (39). The buffer has the characteristics of short protruding time, good protruding effect, easiness for control and simple structure, and can be used for a land-based airplane taking off in short distance.

Description

technical field [0001] The invention belongs to a landing gear buffer of a catapult take-off carrier-based aircraft. technical background [0002] In order to reduce the dependence of aircraft on large airports and enable aircraft to take off smoothly on limited or quickly repaired runways during wartime, the short-distance take-off performance of aircraft has been greatly valued. Especially for carrier-based aircraft, the maximum deck of an aircraft carrier that can be used for take-off is only about 100 m. Good short-distance take-off capability is the basic guarantee for completing various combat missions. The speed of the carrier-based aircraft leaving the ship after a short-distance taxi cannot provide enough lift to overcome the weight of the aircraft. In addition, the loss of ground effect after leaving the ship will cause the carrier-based aircraft to sink on the track after leaving the ship, and it is easy to crash. marine accident. In order to ensure the flight s...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16F9/06F16F9/34F16F9/32
Inventor 聂宏崔俊华段萍萍万峻麟张明
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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