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Horizontal damping device for landing gear

A shock absorber, landing gear technology, applied in landing gear, transportation and packaging, aircraft parts, etc., can solve the problems of inability to use initial pressure, poor sealing performance of shock absorbers, aircraft vibration damage, etc., to reduce vibration damage , the effect of reducing the bending moment

Inactive Publication Date: 2011-06-22
梁华山
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of the strut landing gear is that the piston rod not only bears the axial force but also bears the bending moment, so it is easy to wear and stagnate, which makes the sealing performance of the shock absorber worse, and a large initial pressure cannot be used. The vibration is strong during take-off and landing, causing great vibration damage to the aircraft, and this vibration is also an important source of aircraft take-off and landing noise

Method used

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  • Horizontal damping device for landing gear
  • Horizontal damping device for landing gear
  • Horizontal damping device for landing gear

Examples

Experimental program
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Effect test

Embodiment Construction

[0012] The top plate (1) is fixedly installed on the bottom of the fuselage, and there is a raceway on it for the movement of rolling elements. Ribs can withstand bidirectional axial loads and prevent the rollers from breaking away from the top plate; the rolling elements (2) are cylindrical rollers, and the diameter of both ends of the rollers arranged in the front is smaller than that of the tip in the middle or is converging conical. Installed in the groove on the top of the supporting frame (3), there are grooves for placing the rolling elements (2) on both sides of the groove, and a circular hole is opened in the groove, and the two ends of the cylindrical roller pass through the circular hole and extend into the top plate (1) In the concave rib, the support frame cannot be separated from the top plate, preventing the undercarriage from transmitting the torque to the shock absorber placed horizontally through the support frame (3); the top plate (1), the rolling body (2) a...

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Abstract

The invention discloses a horizontal damping device for a plane landing gear, in particular for a support-post landing gear system. A top plate with a raceway, a rolling shaft and a support frame on which the rolling shaft can be arranged and kept constitute a linear moving bearing which can bear the weight of a plane and can move in the horizontal direction; a horizontally-arranged damper is used for buffering and damping a moving component of the linear moving bearing; and the movable bottom of the entire set of horizontal damping device is connected with support posts of the landing gear, so that horizontal buffering and damping effects are performed on the landing gear and bending moment on the support posts is reduced.

Description

Technical field [0001] The invention is a shock absorbing device which can be used on the landing gear of an aircraft, especially for the shock absorbing of the prop type landing gear in the horizontal direction Background technique [0002] Most of the landing gears used by large aircraft are strut-type landing gears at present. The main features of the strut-type landing gears are: the shock absorber and the load-bearing strut are integrated into one, and the wheels are directly fixed on the piston rod of the shock absorber. The disadvantage of the strut landing gear is that the piston rod not only bears the axial force but also bears the bending moment, so it is easy to wear and stagnate, which makes the sealing performance of the shock absorber worse, and it cannot use a large initial pressure. The vibration is strong during take-off and landing, causing great vibration damage to the aircraft, and this vibration is also an important source of aircraft take-off and landin...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/58
Inventor 梁华山
Owner 梁华山
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