Helicopter type rotorcraft

A technology for rotorcraft and rotors, applied in the field of rotorcraft, can solve the problems of limited use range of rotorcraft and large area required for takeoff of rotorcraft, and achieve the effects of reducing flight energy consumption, increasing use range and reducing noise

Pending Publication Date: 2019-03-15
SUN HAWK HENAN AVIATION IND CO LTD
View PDF3 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Based on the above technical problems, the present invention provides a helicopter rotorcraft, thereby solving the technical problems that the previous rotorcraft required a large field area for take-off, and the scope of use of the rotorcraft was limited.

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
  • Helicopter type rotorcraft
  • Helicopter type rotorcraft

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The present invention will be further described below in conjunction with the accompanying drawings. Embodiments of the present invention include, but are not limited to, the following examples.

[0016] The concrete structure of helicopter rotorcraft of the present invention is as figure 1 , figure 2 As shown, it is mainly composed of fuselage 1, engine 2, main rotor mechanism 3, propulsion mechanism 4, landing gear 5 and tail rudder 6. The main rotor mechanism 3 is installed on the top of the fuselage 1, which includes a main shaft 30, The upper end of the main shaft 30 is equipped with the main rotor 32 through the variable pitch rotor head assembly, and the lower end of the main shaft 20 is connected with the main reduction box of the engine 2 through the main clutch 37. The rotor nose 31 at the upper end, a pair of main rotors 32 are rotatably assembled on the rotor nose 31, a swash plate assembly 33 is installed below the rotor nose 31, and the bottom of the sw...

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 belongs to the technical field of rotorcrafts and relates to a helicopter type rotorcraft. The helicopter type rotorcraft comprises a body, an engine, a main rotor mechanism, a feed mechanism, a tail vane and an undercarriage, and is characterized in that the main rotor mechanism comprises a rotationally assembled spindle, a main rotor is mounted at the upper end of the spindle through a variable-distance rotor handpiece assembly, and the lower end of the spindle is connected with a main speed reduction box of the engine through a main clutch; the feed mechanism comprises two angle gearboxes which are symmetrically mounted on brackets on the left and right sides of the body, power input ends of the two angle gearboxes are in drive connection with the main speed reduction boxof the engine through correspondingly arranged drive shaft assemblies respectively; variable-distance propeller assemblies are mounted on power output shafts on the backs of the two angle gearboxes respectively. The rotorcraft can realize vertical take-off and landing, the site area required for taking off of the rotorcraft is small, and the use range of the rotorcraft is wide.

Description

technical field [0001] The invention relates to a rotorcraft, which belongs to the technical field of rotorcraft, and more specifically, the invention relates to a helicopter rotorcraft. Background technique [0002] Known aircraft has fixed wing aircraft, helicopter, tilting wing aircraft (helicopter+fixed wing), autogyro, and autogyro refers to an "aircraft" that provides lift with a non-powered rotor and is heavier than air. The autogyro mainly includes a frame and a fuselage. The frame is the skeleton of the autogyro, and other components are directly or indirectly installed on the frame. The autogyro fuselage is open and closed. The thrust is provided by the propulsion device to advance, and the propulsion device has two kinds of propeller and jet. The autogyro in the prior art must provide a runway roll to take off, and provide the rotor with head-on wind blowing to make the rotor rotate and increase the lift. This requires a larger area for the take-off of the rotorc...

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
CPCB64C11/32
Inventor 陶亮李文明申守健陈登科
Owner SUN HAWK HENAN AVIATION IND CO LTD
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap