Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A propeller folding mechanism for a catapult UAV

A folding mechanism and UAV technology, applied in the field of UAVs, can solve the problems of time-consuming and labor-intensive propellers, and the inability to realize hot start, etc., and achieve the effect of less preparation work, less space for launch, and intensive launch

Active Publication Date: 2021-05-25
西安毫米波光子科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the technical problems of time-consuming and labor-intensive deployment of the propeller by manual opening, and the fact that the technology of opening the propeller by centrifugal force using an internal combustion engine as power cannot achieve hot start, the present invention uses spring force to automatically open the propeller, and at the same time utilizes the propeller clutch and its linkage device to automatically open the propeller when the propeller is folded. A mechanism that disconnects the connection between the engine and the propeller, drives the propeller clutch to close through the linkage device after the propeller is opened, and connects the engine to provide thrust for the UAV

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
  • A propeller folding mechanism for a catapult UAV
  • A propeller folding mechanism for a catapult UAV
  • A propeller folding mechanism for a catapult UAV

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0017] In order to make those skilled in the art better understand the technical solutions of the present invention, the following describes the propeller folding mechanism for ejector UAV in further detail with reference to the accompanying drawings and specific embodiments.

[0018] like Figure 1-Figure 4 shown,

[0019] A propeller folding mechanism for ejection-type unmanned aerial vehicles, comprising a propeller blade 1 hinged on a propeller hub 3 through a blade hinge 2, the rotating shaft of the paddle hub 3 is inserted into the shaft sleeve 4, and the connecting rod 5 is hinged on the ear of the shaft sleeve 4. On the plate, the other end of the connecting rod 5 is connected with the ear piece of the blade hinge 2, the shaft sleeve 4 is installed at the rear of the fuselage 10 through the thrust bearing 6, and the half friction plate of the clutch 8 is fixed on the rotating shaft of the blade 3 through bolts, The pressure-bearing spring 7 is sleeved on the rotating ...

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 relates to a propeller folding mechanism for a catapult unmanned aerial vehicle, including a blade, a blade hinge, a blade hub, a bushing, a connecting rod, a thrust bearing, and a clutch. The clutch and its linkage device disconnect the connection between the engine and the propeller when the propeller is folded, and drive the propeller clutch to close through the linkage device after the propeller is opened, so as to connect the engine to provide thrust for the UAV.

Description

technical field [0001] The invention relates to the field of unmanned aerial vehicles, in particular to a propeller folding mechanism for ejection type unmanned aerial vehicles. Background technique [0002] Currently, in order to reduce the space for parking and storage of UAVs, the wings, tails and propellers of UAVs are generally folded, and the wings, tails and propellers are unfolded before launching. Among them, the folding methods of the propeller include axial folding and radial folding. The propeller opening methods generally include manual opening and centrifugal force opening. It is time-consuming and labor-intensive to deploy the propeller by manual opening, which is not suitable for the application of multiple continuous and intensive ejections. Using centrifugal force to open the propeller cannot achieve a hot start in a small launch container, and only a cold start can be used. If an internal combustion engine is used as the engine, and the engine is started ...

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 Patents(China)
IPC IPC(8): B64C1/30B64C27/12B64C27/32
CPCB64C1/30B64C27/12B64C27/32
Inventor 岑宇辉周梦娇周浩君孙天韵张海云
Owner 西安毫米波光子科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com