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Damping-adjustable front wheel shimmy damper for small and medium-sized unmanned aerial vehicles

A UAV and damping adjustment technology, which is applied in the direction of weight reduction, aircraft parts, landing gear, etc., can solve problems such as the inability to adapt the front wheel electric steering system, increase the load of the steering servo, and cannot eliminate the force transmission gap, etc., to achieve The effect of convenient and quick adjustment, elimination of force transmission gap, and low processing and manufacturing costs

Pending Publication Date: 2021-10-01
HUNAN SUNWARD SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of middle-level steering gear for the existing unmanned aerial vehicle, which uses a manned machine oil type shock absorber to increase the load of the steering servo, cannot eliminate the force transmission gap, and cannot be adapted to the front wheel electric steering system. Adjustable damping front wheel shock absorber for small UAV

Method used

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  • Damping-adjustable front wheel shimmy damper for small and medium-sized unmanned aerial vehicles
  • Damping-adjustable front wheel shimmy damper for small and medium-sized unmanned aerial vehicles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] An adjustable damping front wheel shock absorber for small and medium-sized unmanned aerial vehicles, including a connecting rod 1, an adjusting cover 3, a spring 4, a retaining ring 5, an outer cylinder 6, a retaining ring 2 7, a spring 8, an adjustment Blocking cover two 9 and slide bar 10.

[0025] The outer cylinder 6 is a hollow cylinder, the sliding rod 10 penetrates the inside of the outer cylinder 6, there is a gap between the outer cylinder 6 and the sliding rod 10, and the square spring one 4 and the square spring two 8 are connected between the outer cylinder 6 and the sliding rod 10. In the gap, adjust the blocking cover 1 3 and the adjusting blocking cover 2 9 to connect the two ends of the outer cylinder 6, fix and compress the square spring 1 4 and the square spring 2 8 in the outer cylinder 6, and adjust the blocking cover 2 9 to be connected with the steering servo Arm connected earrings II 12.

[0026] The inner wall of the outer cylinder 6 has a prot...

Embodiment 2

[0029] Such as Figure 1~2 , an adjustable damping front wheel shock absorber for small and medium-sized drones, including a connecting rod 1, an adjusting nut 2, an adjusting cover 3, a square spring 4, a retaining ring 5, an outer cylinder 6, and a retaining ring 2 7 , Two square springs 8, two 9 and sliding rods 10 for regulating the blocking cover.

[0030] The outer cylinder 6 is a hollow cylinder, and the sliding rod 10 penetrates the inside of the outer cylinder. There is a gap between the outer cylinder 6 and the sliding rod 10 . In the gap, the adjustable blocking cover 13 fixes the square spring 1 4 in the outer cylinder 6 through threaded connection, the adjustable blocking cover 2 9 fixes and compresses the square spring 2 8 in the outer cylinder 6 through the threaded connection, and the adjustable blocking cover 2 9 has a The earring 12 connected to the rocker arm of the steering gear.

[0031] Described urceolus 6 inwalls have raised inner ring, square spring ...

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Abstract

The invention provides a damping-adjustable front wheel shimmy damper for small and medium-sized unmanned aerial vehicles. The damping-adjustable front wheel shimmy damper comprises a connecting rod, a sliding rod, an outer cylinder, a first adjusting blanking cap, a first spring, a first check ring, a second adjusting blanking cap, a second spring and a second check ring. The connecting rod is in threaded connection with the sliding rod, the sliding rod penetrates into the outer cylinder, the first spring and the second spring are arranged in a gap between the sliding rod and the outer cylinder, the first check ring and the second check ring are arranged between the first spring and the second spring, and the first adjusting blanking cap and the second adjusting blanking cap are connected with the two ends of the outer cylinder through threads. According to the shimmy damper, a force transmission gap is eliminated, forward / backward pre-damping can be adjusted, adjustment is convenient and fast, the shimmy damper is simple in structure, low in machining and manufacturing cost, small in size and light in weight, the cylinder is not filled with oil, the problem of oil leakage of a traditional oil shimmy damper is solved, and the manufacturing and maintenance cost is reduced.

Description

technical field [0001] The present invention relates to the technical field of unmanned aerial vehicle devices, and more specifically, to an adjustable damping front wheel shock absorber for small and medium-sized unmanned aerial vehicles. Background technique [0002] Landing gear shimmy has existed for a long time as a serious failure factor of aircraft, and it is not enough to simply rely on the strength and stiffness adjustment of the landing gear itself to prevent shimmy. After long-term practice, it has been proved that installing a special shimmy reducer on the landing gear is the most effective means to prevent the shimmy of the landing gear. [0003] Shock absorber is an indispensable part to prevent landing gear from shimmy. How to meet the shimmy reduction requirement in the simplest and most efficient structure and how to determine the damping characteristics of the shim The problem. Most of the domestic conventional UAV front wheel shock absorbers adopt the oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/50
CPCB64C25/505B64C25/50Y02T50/40
Inventor 马云荣周凯
Owner HUNAN SUNWARD SCI & TECH
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