Apparatus and method for analyzing dynamic torsional stiffness of harmonic reducer

A harmonic reducer, torsional stiffness technology, applied in measuring devices, instruments, force/torque/work measuring instruments, etc., can solve the problems of limited service life of the flexible wheel, the input speed cannot be too high, and the impact resistance is not enough. Simple, easy to set up, saving installation cost and cost of storage and maintenance

Active Publication Date: 2017-12-08
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

[0002] Harmonic reducer, its harmonic transmission uses the controllable elastic deformation of flexible elements to transmit motion and power. Relatively poor, and the input speed can not be too high

Method used

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  • Apparatus and method for analyzing dynamic torsional stiffness of harmonic reducer

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Experimental program
Comparison scheme
Effect test

Embodiment

[0024] Such as figure 1 As shown, a dynamic torsional stiffness analysis device for a harmonic reducer includes an AC servo motor 2, the AC servo motor comes with an encoder disc 1, and the output shaft of the AC servo motor is decelerated with a harmonic gear through a coupling 4 The input shaft of the device 5 is connected, the output shaft of the harmonic gear reducer is connected with one end of the torsion sensor 7, and the other end of the torsion sensor is connected with the torsion spring 8 and the rotary encoder disk 10 respectively;

[0025] Both the encoder disk and the rotary encoder disk attached to the AC servo motor are of high resolution.

[0026] The AC servo motor is fixed on the test bench through the motor support 3, the harmonic gear reducer is fixed on the test bench through the harmonic gear reducer support 6, and the other end of the torsion spring is fixed through the torsion spring support 9.

[0027] The signal generator 12 generates a sinusoidal si...

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PUM

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Abstract

The invention discloses an apparatus and method for analyzing dynamic torsional stiffness of a harmonic reducer. The apparatus comprises an AC servo motor with a coding disc. An output shaft of the AC servo motor is connected with an input shaft of a harmonic gear reducer through a coupling. An output shaft of the harmonic gear reducer is connected with one end of a torsion sensor, and the other end of the torsion sensor is separately connected with a torsion spring and a rotary coding disc. The apparatus further includes an AC motor servo amplifier, a signal generator, an A/D conversion data acquisition card, a computer and a code disc counting solution card. The output torsional stiffness of the harmonic gear reducer can be solved by measuring angular displacement signals at input and output ends of the harmonic gear reducer and a load torque signal at the output end and by running a corresponding algorithm.

Description

technical field [0001] The invention relates to the transmission characteristics of a reducer, in particular to a device and method for analyzing the dynamic torsional stiffness of a harmonic reducer. Background technique [0002] Harmonic reducer, its harmonic transmission uses the controllable elastic deformation of flexible elements to transmit motion and power. Relatively poor, and the input speed can not be too high. [0003] The harmonic transmission reducer is mainly composed of three basic components: a wave generator, a flexible gear and a rigid gear. Gear transmission to transmit motion and power. [0004] Due to the characteristics of harmonic gear transmission, the torsional rigidity of the output shaft is lower than that of the RV reducer, and the rotation accuracy is also low, so the output torsional rigidity of the harmonic reducer must be analyzed. Contents of the invention [0005] In order to overcome the shortcomings and deficiencies of the prior art,...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
CPCG01L5/0061Y02P70/10
Inventor 邱志成
Owner SOUTH CHINA UNIV OF TECH
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