Light loading device suitable for low altitude propeller balance and design method thereof

By designing a lightweight loading device suitable for low-altitude propeller balances, the problem that existing devices cannot meet the requirements of high rigidity and lightweight calibration was solved, enabling high-precision propeller aerodynamic testing and improving test accuracy and applicability.

CN122084231BActive Publication Date: 2026-06-23CHINA AVIATION IND CORP HARBIN AERODYNAMICS RESEARCH INSTITUTE
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA AVIATION IND CORP HARBIN AERODYNAMICS RESEARCH INSTITUTE
Filing Date
2026-04-24
Publication Date
2026-06-23

AI Technical Summary

Technical Problem

Existing wind tunnel balance loading devices cannot meet the requirements of low-altitude propeller balances for simulating real installation methods, high rigidity, and lightweight calibration, especially for propeller balances with a diameter of less than 200mm, which cannot be calibrated with high precision.

Method used

A lightweight loading device suitable for low-altitude propeller balances was designed, including components such as a lifting base, a lower connector of the balance, a central body, a drag lug, and a rolling moment lifting ring. The strength and stiffness were checked using finite element analysis software to ensure the high stiffness and lightweight characteristics of the loading device, and the actual installation method was simulated.

Benefits of technology

It achieves high-precision calibration of low-altitude propeller balances. The loading device has high rigidity, light weight, and accurate positioning, which improves the accuracy of testing. It is suitable for static calibration of propeller balances with a diameter of less than 200mm and has good versatility.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN122084231B_ABST
    Figure CN122084231B_ABST
Patent Text Reader

Abstract

The application provides a lightweight loading device suitable for a low-altitude propeller balance and a design method thereof, and belongs to the technical field of low-altitude aircraft test balance. The purpose is to solve the problem that the existing loading device cannot meet the requirements of simulating real installation mode, high stiffness and lightweight calibration of a low-altitude propeller six-component balance with a diameter of less than 200 mm. In the application, the low-altitude propeller balance is horizontally installed on a raised base through a balance lower connecting piece, and the upper surface of the low-altitude propeller balance is connected with a balance upper connecting plate; a center body is installed on the outer side of the low-altitude propeller balance; front and rear cantilevers and left and right cantilevers are all installed on the center body; resistance lifting lugs are installed on the two sides of the left and right cantilevers; the left and right cantilevers are provided with normal force lifting rings and rolling moment lifting rings; and the front and rear cantilevers are provided with pitching moment lifting rings. The application solves the problem that the existing loading device cannot meet the requirements of simulating real installation mode, high stiffness and lightweight calibration of a low-altitude propeller six-component balance with a diameter of less than 200 mm.
Need to check novelty before this filing date? Find Prior Art