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

Unmanned aerial vehicle booster rocket thrust line and gravity center deviation measuring device and method

A rocket thrust and deviation measurement technology, applied in the field of unmanned aerial vehicles, can solve the problems of inconsistent oil core position, inconvenient reading, poor pressure bearing performance, etc., and achieve the effects of preventing uncontrolled rollover, good practicability and simple structure

Active Publication Date: 2021-01-01
CHENGDU AIRCRAFT INDUSTRY GROUP
View PDF27 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method and measuring device have the following disadvantages for unmanned aerial vehicles with large body size and weight: (1) it is difficult to turn over; (2) compared with the unmanned aerial vehicle in the upside-down state, the position of the oil center is inconsistent, which affects the accuracy of the measurement results (3) In the hoisting state of the UAV, the reading end of the sleeve and the steel cable is higher than the ground, and the reading is inconvenient
Although the ball joint can be flexibly rotated within a certain range to adjust the thrust line, the ball joint is in point contact and has poor pressure bearing performance. Therefore, the manufacturing and assembly accuracy of the ball joint is very high, which is difficult to achieve, and the fastening method described can not achieve

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
  • Unmanned aerial vehicle booster rocket thrust line and gravity center deviation measuring device and method
  • Unmanned aerial vehicle booster rocket thrust line and gravity center deviation measuring device and method
  • Unmanned aerial vehicle booster rocket thrust line and gravity center deviation measuring device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] This embodiment discloses a device for measuring the deviation between the thrust line and the center of gravity of a UAV-assisted rocket. figure 1 , figure 2 and Figure 7 , the measuring device is connected with the UAV 1, and mainly includes a supporting part 2 and a measuring part 3, and the supporting part 2 includes a first supporting frame 21 and a second supporting frame 22, and the two supporting frames are perpendicular to each other, and Fixed on the ground by the bottom plate, the measuring part 3 includes a first measuring mechanism 31 and a second measuring mechanism 32, the first measuring mechanism 31 is arranged on the first supporting frame 21 and connected with the supporting joint 4 of the UAV 1, It is used to support the UAV 1 laterally and measure the lateral support force. The support joint 4 is the fuselage structure of the UAV 1. It is used to support and fix the UAV 1 when it is placed horizontally. It measures the UAV center of gravity 14 an...

Embodiment 2

[0045] This embodiment discloses a device for measuring the deviation between the thrust line and the center of gravity of a UAV-assisted rocket. Figure 4-Figure 8 , on the basis of Embodiment 1, in order to better realize the present application, the side of the thrust cone 5 is provided with a through side hole, and a rotating shaft 7 is installed in the side hole, and the two ends of the rotating shaft 7 extend to the outside of the side hole And bearing 8 is installed respectively, and bearing 8 is arranged in the U-shaped groove on the second support frame 22, and bearing 8 is the rotating mechanism that fixes rotating shaft 7 on the second support frame 22, and the rotational friction coefficient of bearing 8 is little, can eliminate Influencing factors of friction, the part where the second support frame 22 is in contact with the thrust cone is provided with an escape groove 9, and the UAV 1 can rotate around the rotating shaft 7.

[0046] Further, in order to better r...

Embodiment 3

[0055] This embodiment discloses a method for measuring the deviation between the thrust line and the center of gravity of a UAV-assisted rocket. Figure 1-8 , including the following steps:

[0056] S1. First, the support member 2 is fixed on the ground, and then the pressure sensor 312 and the force-measuring joint 313 are respectively installed at the end of the telescopic rod 311 on the first support frame 21, and the guardrail 13 on the first support frame 21 is installed at the same time. Open;

[0057] S2. Set the sensor mounting seat 10 on the thrust cone 5, the two are pasted by the cone surface and the sensor mounting seat 10 is fixedly connected with the base flange 6 on the thrust cone 5 by using locking bolts, and then on the sensor mounting seat 10 Install the inclination sensor 321 and the counterweight 11 at both ends respectively, then install the rotating shaft 7 through the side hole of the thrust cone 5, and install the bearing 8 at the two ends of the rot...

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 the technical field of unmanned aerial vehicles, and discloses an unmanned aerial vehicle booster rocket thrust line and gravity center deviation measuring device and method,the measuring device is connected with an unmanned aerial vehicle and comprises a supporting part and a measuring part, and the supporting part comprises a first supporting frame and a second supporting frame; the measuring part comprises a first measuring mechanism and a second measuring mechanism, the first measuring mechanism is installed on the first supporting frame and connected with a supporting connector of the unmanned aerial vehicle, the second measuring mechanism is installed on the lower portion of the thrust cone, the thrust cone is in an outer cone shape, and a base flange connected with a belly of the unmanned aerial vehicle is arranged on the bottom face of the thrust cone. A kidney-shaped hole used for fixing is formed in the base flange, and the other end of the thrust cone is rotationally connected with the second supporting frame. The device is particularly suitable for the unmanned aerial vehicle which is large in size and weight and inconvenient to overturn, and the distance between the gravity center of the unmanned aerial vehicle and the thrust line can be conveniently measured without overturning during actual measurement.

Description

technical field [0001] The present application relates to the technical field of unmanned aerial vehicles, in particular to a device and method for measuring the deviation between the thrust line and the center of gravity of an unmanned aerial vehicle booster rocket. Background technique [0002] At present, drones have been widely used in various fields, such as military reconnaissance, environmental monitoring, environmental law enforcement, meteorological monitoring, land survey law enforcement, forest fire prevention monitoring and other fields. The rocket launch method of UAV is one of the most common take-off methods of UAV. It means that UAV uses the launcher to launch with rocket booster. This launch method allows the UAV to quickly reach the ideal height and speed from a static state in a short period of time without being limited by the launch site, weight, distance, and speed. [0003] The axis of the connection interface between the booster rocket and the UAV la...

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
IPC IPC(8): B64F5/60
CPCB64F5/60B64U70/00B64U10/25
Inventor 刘海龙朱阿元唐茂华
Owner CHENGDU AIRCRAFT INDUSTRY GROUP
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com