Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Locking mechanism for unfolding and folding of undercarriage of unmanned aerial vehicle

A locking mechanism and landing gear technology, applied in the chassis and other directions, can solve the problems of complex structure, high cost, low stability, etc., and achieve the effect of reliable connection, high promotion value, and smooth retraction process

Pending Publication Date: 2019-10-22
成都弗格森液压机电有限公司
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing actuator locking mechanism mainly includes two forms of mechanical lock or hydraulic (pneumatic) dynamic lock. The hydraulic (pneumatic) dynamic lock is expensive and has a complicated structure, which is not suitable for small equipment with low cost such as drones. However, some existing mechanical locks have the disadvantages of complex structure and low stability, and there is a lot of room for improvement.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Locking mechanism for unfolding and folding of undercarriage of unmanned aerial vehicle
  • Locking mechanism for unfolding and folding of undercarriage of unmanned aerial vehicle
  • Locking mechanism for unfolding and folding of undercarriage of unmanned aerial vehicle

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] Such as Figure 1 ~ Figure 3 As shown, the UAV landing gear retractable locking mechanism provided in this embodiment includes a cylinder 4, a piston rod 6 slidably arranged in the cylinder 4, and a power assembly that drives the movement of the piston rod 6. The piston rod 6 A through hole is opened along its axis, one end of the piston rod 6 passes through the cylinder 4 and a guide sleeve 5 is arranged between the cylinder 4, and a rod head 7 for connecting other components is fixed in the through hole at the end of the piston rod 6, The other end of the piston rod 6 is formed with a sliding sleeve 61 that slides with the inner wall of the cylinder barrel 4. The outer diameter of the sliding sleeve 61 is 1.5 to 2.5 times, preferably 2 times, the outer diameter of the piston rod 6. The inner diameter of the sliding sleeve 61 is The diameter of the through hole of the piston rod 6 is 1.5 to 2.5 times, preferably 2 times, so as to ensure a higher connection support stre...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a locking mechanism for unfolding and folding of an undercarriage of an unmanned aerial vehicle. The locking mechanism comprises a cylinder barrel, a piston rod and a power assembly, wherein the piston rod is slidably arranged in the cylinder barrel, the power assembly drives the piston rod to move, a through hole is formed in the piston rod along the axis of the piston rod, one end of the piston rod penetrates out of the cylinder barrel and a guide sleeve is arranged between the piston rod and the cylinder barrel, a rod head is connected to the penetrating end of the piston rod, and a sliding sleeve which is in sliding fit with the inner wall of the cylinder barrel is formed at the other end of the piston rod; and the power assembly comprises a motor and a transmission locking mechanism, wherein the motor provides power, and the transmission locking mechanism ensures that the piston rod is stably telescopic. The whole folding and unfolding process of the structure is smooth, the mechanical connection relation is simple, the connection is reliable, the design is very ingenious, the unlocking of the piston rod can be performed only through the rotation of a nut, the locking mechanism has enough support strength or rigidity, and can bear impact generated when the undercarriage is touched.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicle retractable systems, in particular to a locking mechanism for unmanned aerial vehicle landing gear retractable. Background technique [0002] The landing gear retractable system is an important part of the aircraft, and the working performance of the system directly affects the safety and maneuverability of the aircraft. The landing gear retractable system is mainly composed of a retractable actuator, a retractable position lock, a retractable operating mechanism, and a control system. Since the impact force of the landing gear in contact with the ground is relatively large after the landing gear is in place, this is a test of the support capacity of the locking mechanism in the actuator. Maintain high support stability. The existing actuator locking mechanism mainly includes two forms of mechanical lock or hydraulic (pneumatic) dynamic lock. The hydraulic (pneumatic) dynamic lock is expen...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B64C25/26
CPCB64C25/26
Inventor 黄泰波张凯谢随江林波向聪陈池波唐德刚罗姗颉金平
Owner 成都弗格森液压机电有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Eureka Blog
Learn More
PatSnap group products