Small nose landing gear for unmanned aerial vehicle
A technology of small unmanned aerial vehicle and front landing gear, applied in landing gear, aircraft parts, transportation and packaging, etc., can solve the problems of poor reliability, poor shock absorption effect, defects and failures that are not easy to be found, etc.
Active Publication Date: 2014-12-10
SHENYANG AIRCRAFT CORP
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Problems solved by technology
Its reliability is poor, the cushioning and shock absorption effect is not good, and the defects and faults are not easy to be found
Method used
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[0014] Such as figure 1 with figure 2 Shown, a kind of small unmanned aerial vehicle front landing gear, coaxially arrange guide bar 8 in the interior of urceolus 1, in the cavity between urceolus 1 and guide bar 8, be provided with bottom inner tube 3, a Level spring 4, and upper inner cylinder 2, first-level spring 4 can absorb the power suffered on upper inner cylinder 2 and lower inner cylinder 3; Below outer cylinder 1 is provided with tire 18, the upper end of the rocker wheel fork 9 of tire Each side has a group of connecting ear joints, the ear joints at the upper end are connected with the torque arm 10, and the ear joints at the side end are connected with the protruding end of the lower inner cylinder 3; The primary spring 5, the secondary spring 5 is in contact with the bottom end surface of the clamping joint 11 which is slidingly connected with the outer cylinder 1, and the secondary spring 5 can absorb the force acting on the external cylinder 1 and the rocker...
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The invention relates to a small nose landing gear for an unmanned aerial vehicle. A guide rod is coaxially arranged inside an outer cylinder, and a lower inner cylinder, a primary spring and an upper inner cylinder are arranged inside a cavity between the outer cylinder and the guide rod in sequence from bottom to top; a tire is arranged below the outer cylinder, a group of connecting inserting lug joints are respectively arranged on the upper end and the side face of a rocker arm wheel fork of the tire, the connecting inserting lug joints at the upper end are connected with a torque arm, and the lower parts of the connecting inserting lug joints on the side face are connected with the stretching end of the inner cylinder; a secondary spring is arranged on a limiting table at the bottom of the lower inner cylinder and is in contact with the bottom end surface of a clamping joint connected with the outer cylinder in a sliding mode, a lug plate is arranged on the outer periphery of the clamping joint, and the upper end of the torque arm is connected with the lug plate; a top support is arranged at the end, stretching out of the outer cylinder, of the upper inner cylinder. The landing gear is a fixed frame type semi-rocker arm nose landing gear, so that the stability of aircraft take-off and landing running and using maintainability are improved, and the landing impact energy is fully absorbed.
Description
technical field [0001] The invention relates to a front landing gear of a small unmanned aerial vehicle, which is especially suitable for an aircraft with a small space at the head part. Background technique [0002] With the development of small and medium UAV systems, UAV technology is being widely cited. The take-off and recovery methods of small and medium-sized UAVs are limited by conditions, and most of them are ejection take-off and parachute recovery. However, when conditions permit, the way of take-off and landing is optimal. However, the roll take-off and roll landing have relatively high requirements on the cushioning, shock absorption and roll stability of the landing gear. Currently, the simpler off-the-shelf nose gear used on smaller drones is not suitable for mission-specific drones with tight nose spaces. Its reliability is poor, the cushioning and shock absorption effect is not good, and defects and faults are not easy to be found. Contents of the invent...
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Login to View More IPC IPC(8): B64C25/50B64C25/62
Inventor 杨光朱晨陈晓芳杨五兵赵长辉
Owner SHENYANG AIRCRAFT CORP