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

Vertical lifting airphibian vehicle propeller variable pitch device

A land-air dual-use, vertical lift technology, applied to propellers, transportation and packaging, aircraft parts, etc., can solve the problems of device volume, weight, unreasonable structural design, and unstable performance, etc., to achieve small weight and significant The effect of progress and stable work performance

Inactive Publication Date: 2013-06-26
贾小平
View PDF4 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Due to the unreasonable structural design of the existing propeller pitch change device, the structure is relatively complex, the device is large in size and weight, the failure rate is high, the control accuracy is low, and the performance is not stable enough

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
  • Vertical lifting airphibian vehicle propeller variable pitch device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0012] Such as figure 1 As shown, the propeller pitch-changing device for a vertical lift, land and air vehicle of the present invention includes a propeller center housing 5 and a plurality of propeller assemblies, and the side walls of the propeller center housing 5 are symmetrically arranged with a plurality of propellers along the horizontal radial direction Mounting holes, the inner end of each propeller assembly can be rotatably installed in a propeller installation hole, the axis of each propeller assembly is located in the horizontal radial direction, and the inner end of each propeller assembly is respectively provided with eccentric holes along the horizontal diameter. Pin shaft 10, the outer end of each eccentric pin shaft 10 is inserted eccentrically on the inner end face of the propeller blade 6 of a propeller assembly respectively, and the inner end of each eccentric pin shaft 10 is respectively inserted in the lifting slide with clearance fit. In the annular gro...

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

A vertical lifting airphibian vehicle propeller variable pitch device comprises a propeller central shell and a plurality of propeller components, wherein a plurality of propeller mounting holes are formed in the side wall of the propeller central shell; the inner end of each propeller component is rotationally mounted in one propeller mounting hole; an eccentric pin shaft is arranged on the end face of the inner end of each propeller component along the horizontal diameter; the outer end of each eccentric pin shaft is eccentrically inserted into the end face of the inner end of a propeller blade of one propeller component; the inner end of each eccentric pin shaft is inserted into a ring-shaped groove on the side wall of a lifting sliding block in a clearance fit mode; a lifting sliding block component is spirally mounted on a lead screw through a threaded hole; and the top end of the lead screw upwards penetrates the top of the propeller central shell and is in transmission connection with a servo motor. The invention aims to provide the vertical lifting airphibian vehicle propeller variable pitch device, which is small in volume, light in weight, compact in structure, low in failure rate, high in regulation and control precision, easy to operate and control and stable in work performance.

Description

technical field [0001] The invention relates to a propeller pitch-changing device for vertically lifting land and air vehicles. Background technique [0002] Due to the unreasonable structural design of the existing propeller pitch change device, the structure is relatively complex, the device is large in size and weight, has a high failure rate, low control accuracy, and unstable performance. Contents of the invention [0003] The object of the present invention is to provide a propeller pitch changing device for vertical lift, land and air vehicle with small size, light weight, compact structure, low failure rate, high regulation precision, simple operation and control, and stable working performance. [0004] The propeller pitch changing device of the vertically liftable land and air vehicle of the present invention comprises a propeller center housing and a plurality of propeller assemblies, and a plurality of propeller installation holes are arranged symmetrically alo...

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): B64C11/32
Inventor 贾小平陈风谢朝阳徐岩于魁龙李炯闫淑敏贾克
Owner 贾小平
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