Moment-of-inertia test bench based on torque sensor

A technology of torque sensor and moment of inertia, which is used in the testing of machine/structural components, static/dynamic balance testing, instruments, etc., can solve the problems of low efficiency, low repeatability, low measurement accuracy, etc., and achieves simple measurement principle, The effect of high repeatability and high measurement accuracy

Active Publication Date: 2016-03-30
NORTHWESTERN POLYTECHNICAL UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to avoid the deficiencies of the existing technology and overcome the deficiencies of the existing moment of inertia test benches such as low efficiency, low measurement accuracy, and low repeatability, the present invention proposes a torque sensor-based rotary inertia test bench

Method used

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  • Moment-of-inertia test bench based on torque sensor
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  • Moment-of-inertia test bench based on torque sensor

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Embodiment Construction

[0021] specific implementation plan

[0022] This embodiment is a moment of inertia test bench based on a torque sensor.

[0023] refer to Figure 1 to Figure 5 , the moment of inertia test bench based on the torque sensor in this embodiment is composed of a workbench, a torsion bar transmission mechanism, a driving device, and an electric control system; The angle between the longitudinal reference bar 7 , the horizontal reference bar 6 and the longitudinal reference bar 7 is 90 degrees, and the transition plate 8 is installed at the center of rotation of the workbench 1 . When testing the object, design a special fixture according to the size of the object to be measured, and place it on the horizontal reference bar 6 and the vertical reference bar 7 on the workbench 1 to position the workbench 1 surface and the fixture.

[0024] The torsion bar transmission mechanism includes an angular velocity sensor 2, a thrust ball bearing cover 9, a thrust ball bearing 10, a thrust b...

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Abstract

The invention discloses a moment-of-inertia test bench based on a torque sensor. A torque motor is adopted to drive a workbench to rotate, the numerical values of a torque sensor and an angular velocity sensor under no-load and loaded conditions of the workbench are collected, and the moment of inertia of a tested object is calculated based on the numerical values. The moment-of-inertia test bench comprises a workbench, a torsion bar transmission mechanism, a driving device and an electric control system. The workbench is used for installing and positioning a tested object, and a special clamping mechanism for design is installed on the workbench. The torsion bar transmission mechanism is used for transmitting torque, and can bear the instantaneous torque when the torque motor is started and ensure that the torque output is stable at the start of test. The torsion bar transmission mechanism employs a torque sensor and an angular velocity sensor, and is easy to disassemble. The torque sensor is connected with a transmission shaft, and has the characteristics of high measurement precision and quick disassembly and calibration. The moment-of-inertia value is calculated by measuring the data of the torque sensor and the angular velocity sensor in the rotation process of the workbench, and the measurement result is of high repeatability.

Description

technical field [0001] The invention relates to a moment of inertia test bench, in particular to a moment of inertia test bench based on a torque sensor, belonging to the field of moment of inertia measurement. Background technique [0002] As an important design parameter, the moment of inertia has an important influence on the motion stability, operability, maneuverability and consistency of combined motion of the equipment. With the close integration of machinery, automation technology and computer technology, and various measurement Sensors can achieve higher and higher precision requirements. How to measure the moment of inertia of objects more conveniently, quickly and accurately has become an urgent problem to be solved. Invention patent CN102692264A discloses a test bench and test method for mass, center of mass position and moment of inertia. The test platform consists of a positioning mechanism, a clamping mechanism, a workbench, a lifting mechanism, a power compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M1/10G01M1/02
CPCG01M1/02G01M1/10
Inventor 谭小群黄永超王战玺白晶秦现生李树军张顺琦李靖冯华山于薇薇楚磊郭欣李希王军宁
Owner NORTHWESTERN POLYTECHNICAL UNIV
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