Small drone landing gear buffer

Abstract

The small unmanned aerial vehicle landing gear buffer relates to the field of aviation aircraft, and solves the problems that the existing flat spring type buffer has low buffering efficiency, is easy to rebound, and cannot meet the high reliability requirements of the unmanned aerial vehicle. Including the outer cylinder, the first spring on the outer cylinder, the inner cylinder with a damping hole, the air bag between the outer cylinder and the inner cylinder, the upper joint, the lower joint, the piston rod extending into the inner cylinder, and the piston rod which is set on the piston rod in turn. Piston, damping plate, pressure limiting valve, one-way valve, guide sleeve and locking cover which are set on the piston rod and located inside the outer cylinder in turn; between the inner cylinder and the outer cylinder is the inner and outer cylinder ring-shaped oil storage chamber, and the damping plate along the piston The rod moves axially, and the pressure limiting valve limits the maximum damping force in the compression stroke to not exceed the preset value. After tightening the locking cap, the guide sleeve, one-way valve, and inner cylinder are axially compressed to the lower joint, and the one-way valve controls the inner and outer Whether the annular oil storage chamber of the barrel communicates with the right cavity of the inner barrel or not, the two ends of the first spring bear against the lower and upper joints respectively. The invention has high buffering efficiency, is not easy to rebound, has stable performance and high reliability.

Description

technical field [0001] The invention relates to the technical field of aviation aircraft, in particular to a small unmanned aerial vehicle landing gear buffer. Background technique [0002] The landing gear is a special device used for taxiing and parking of the aircraft. It needs to bear the static load and dynamic load generated by the contact between the aircraft and the ground, and plays the role of supporting and protecting the airframe. The landing gear relies on the buffer to absorb the landing impact energy, and its performance has a decisive impact on the take-off and landing performance of the aircraft. With the popularity of drones, users often do not have professional aircraft knowledge, which puts forward higher requirements for the reliability, ease of operation, and maintenance-free nature of drones. With the continuous expansion of UAV application fields and the ever-changing market demand, this puts forward requirements for UAV development cycle and cost pe...

AI Technical Summary

Problems solved by technology

[0007] In order to solve the problem that the existing flat spring buffer has low buffering efficiency, easy to rebound, and cannot meet the high reliability requirements of the UAV, the present invention provides a small unmanned vehicle with high buffering efficiency, not easy to rebound, stable performance, and high reliability. Aircraft landing gear buffer

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