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

Motor driven culvert lift fan gearing-down mechanism

A lift fan and deceleration transmission technology, which is applied to motor vehicles, rotorcraft, vertical take-off and landing aircraft, etc., can solve problems such as poor aerodynamic efficiency, insufficient transmission ratio, and failure to meet requirements, and achieve strong engineering applicability and good aerodynamics The effect of efficiency and low cost

Inactive Publication Date: 2012-09-19
NORTHWESTERN POLYTECHNICAL UNIV
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when it simply uses bevel gears to decelerate during its working process, the transmission ratio is insufficient and cannot meet the requirements; because the bevel gears are limited in size when using bevel gears for deceleration, they cannot be completely buried in the propeller hub, so the aerodynamic efficiency during flight is poor.

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
  • Motor driven culvert lift fan gearing-down mechanism
  • Motor driven culvert lift fan gearing-down mechanism
  • Motor driven culvert lift fan gearing-down mechanism

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0018] The invention includes a transmission shaft, a coupling and a cylindrical gear, and the motor drives two ducted fans in the wing to rotate through a reduction transmission mechanism composed of the transmission shaft, the coupling and the cylindrical gear. Among them, the motor is placed in the plane of symmetry of the aircraft, the cylindrical gear is set between the center of the transmission shaft and the motor, the transmission shaft is vertically arranged horizontally to the plane of symmetry of the aircraft, the transmission shaft is fixedly connected with the center of the cylindrical gear through a coupling, and the two ends of the transmission shaft Each is connected with a bevel gear, and the bevel gear is vertically meshed with the bevel gear fixed to the fan coaxially.

[0019] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0020] This embodiment is a transmission mechanism that drives a...

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 motor driven culvert lift fan gearing-down mechanism. A motor is placed in a symmetry plane of an airplane, a transmission shaft is horizontally arranged on a mode of being vertical to the symmetry plane of the airplane, the motor drives the transmission shaft through a gear reducer, two ends of the transmission shaft are coaxially connected with a bevel gear respectively, the bevel gears is vertical to and meshed with a bevel gear which is coaxially and fixedly connected with fans to drive the two culvert fans in wings to rotate. The motor driven culvert lift fan gearing-down mechanism overcomes twisting moment, can effectively decreases size of the bevel gears, obtains good aerodynamic efficiency, gives consideration to requirements for efficiency and weight, and is low in cost and strong in project applicability.

Description

technical field [0001] The invention relates to a motor-driven deceleration transmission mechanism for a ducted lift fan drone. Through the transmission mechanism, the motor can drive the fan to rotate at a suitable speed. Background technique [0002] The ducted lift fan UAV has always been a hot topic in the aviation industry. It has the characteristics of both fixed-wing and rotary-wing aircraft. The most important point is that it can provide lift through the ducted lift fan to enable the aircraft to take off and land in an ultra-short distance or vertically. Takeoff and landing capability, and conduct high-speed flight. The ducted fan UAV mainly relies on the rotation of the lift fan to provide vertical lift. Since the motor speed is generally too high, in order to obtain a proper deceleration for the ducted fan, it is necessary to design a transmission deceleration mechanism. The short take-off and landing unmanned aerial vehicles successfully produced abroad also mai...

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): B64C27/59B64C29/00
Inventor 张炜文强张家华李慧马智
Owner NORTHWESTERN POLYTECHNICAL UNIV
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