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A device for preventing aircraft front wheel shimmy

A front wheel, aircraft technology, applied in aircraft parts, transportation and packaging, landing gear, etc., can solve the problems of large volume, heavy weight, complex structure of the anti-swing device, etc., and achieve the effect of small volume

Active Publication Date: 2017-03-01
浙江中航通飞研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But this anti-shock device has complex structure, large volume, heavy weight and high cost

Method used

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  • A device for preventing aircraft front wheel shimmy

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Embodiment Construction

[0014] The specific embodiment of the device for preventing aircraft nose wheel shimmy according to the present invention will now be described in conjunction with the accompanying drawings.

[0015] see figure 1 As shown, the device for preventing aircraft front wheel shimmy of the present invention includes a wear ring 2 which is set on the aircraft front wheel strut 1 and is provided with an opening 21, a clamp 3 which is sleeved on the outside of the wear ring 2, and which is sleeved on the clamp The open end 31 is used to lock the bolt assembly 4 of the wear-resistant ring through a clamp.

[0016] Wherein, the wear-resistant ring 2 is a non-metallic wear-resistant ring; preferably, the wear-resistant ring is a PVC wear-resistant ring.

[0017] The clamp is a metal clamp. Through the locking and pressure action of the bolt assembly 4 and the clamp 3, the wear ring 2 rubs against the front wheel strut 1 to generate a frictional damping torque, and the frictional damping ...

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PUM

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Abstract

The invention provides a device for preventing the front-wheel shimmy of an airplane. The device comprises a wear-resistant ring sleeved on a front-wheel strut of the airplane and provided with an opening, a clamping hoop sleeved at the outer side of the wear-resistant ring, and a bolt assembly sleeved at the open end of the clamping hoop and used for locking the wear-resistant ring via the clamping hoop. According to the device provided by the invention, the front-wheel shimmy is prevented by damping force generated by friction between the wear-resistant ring and the front-wheel strut under the action of locking force and pressure of the clamping hoop; and the shimmy reducing device is simple in structure, small in size and light in weight and greatly reduces costs while the effect of preventing the front-wheel shimmy is ensured.

Description

technical field [0001] The invention relates to an anti-shock device, in particular to a device for preventing the front wheel of an aircraft from shimmy. Background technique [0002] When the aircraft is taking off or landing, the front wheel sometimes produces a severe vibration that deviates from the neutral position of the wheel and couples with each other in the lateral and torsional directions. This vibration is called shimmy. Aircraft nose wheel shimmy is a very complex self-excited vibration caused by the mutual coupling between the lateral vibration of the pillar and the front wheel and the torsional vibration of the front wheel around the axis of the pillar. The energy for maintaining this self-excited vibration is in the During running, it is provided by the force and moment acting on the tires on the ground. When the shimmy is severe, it will cause severe vibration of the fuselage, which will seriously affect the normal operation of the driver, and even cause da...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B64C25/50
Inventor 舒龙珍王延涛陈永新叶远珩刘东辉
Owner 浙江中航通飞研究院有限公司
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