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Torsional fatigue test driving mechanism, testing machine, testing method and storage medium

A technology of torsional fatigue and driving mechanism, applied in the field of torsional fatigue test, can solve the problems of high use cost, high energy consumption, low energy consumption and so on

Active Publication Date: 2021-04-02
浙江晟克科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to overcome the problems of excessive energy consumption and high cost of use in the prior art, and provide a torsional fatigue test drive mechanism, testing machine, testing method and storage medium. Simple

Method used

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  • Torsional fatigue test driving mechanism, testing machine, testing method and storage medium
  • Torsional fatigue test driving mechanism, testing machine, testing method and storage medium

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Effect test

specific Embodiment approach 1

[0107] It includes the following steps: determine the torsion angle α required for the torque fatigue test of the main specimen; the power source gradually increases the input torque so that the main specimen performs simple harmonic vibration in the range of positive and negative α angles; intermittently drives the spring vibrator to compensate The energy loss of the spring vibrator during the simple harmonic vibration to maintain the simple harmonic vibration of the spring vibrator.

specific Embodiment approach 2

[0109] Include the following steps:

[0110] Determine the torque boundary value required for the torque fatigue test of the main specimen; the power source gradually increases the input torque so that the main specimen reaches the torque boundary value and generates simple harmonic vibration in the positive and negative β angle interval; the torsion measuring mechanism detects the main specimen The difference between the current torque value and the torque boundary value; according to the feedback of the torsion measuring mechanism, the difference is dynamically compensated by the work done by the power source, so as to maintain the simple harmonic vibration of the spring vibrator.

[0111] It should be noted that the β angle is not preset, and the β angle is determined according to the torque boundary value, that is, the magnitude of the torque boundary value determines the size of the β angle.

[0112] It should also be noted that, in the second specific embodiment, the tor...

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Abstract

The invention relates to the field of torsional fatigue tests, in particular to a torsional fatigue test driving mechanism, a testing machine, a testing method and a storage medium, the torsional fatigue test driving mechanism comprises a power source, a first spline shaft and a first oscillator flywheel, the first oscillator flywheel and the first spline shaft are coaxially and detachably arranged, and the first oscillator flywheel can rotate along with the first spline shaft; the power source is used for intermittently driving the first spline shaft so as to drive the first spline shaft to rotate and provide torque compensation for a torsional fatigue testing machine. By means of the technical scheme, the power source only needs to provide starting energy and energy lost in a compensation test, then the energy-saving effect is achieved, and meanwhile the torsional fatigue test driving mechanism is simple in structure and low in maintenance cost.

Description

technical field [0001] The invention relates to the field of torsional fatigue tests, in particular to a torsional fatigue test driving mechanism, a testing machine, a testing method and a storage medium. Background technique [0002] Many parts subject to torsion need torsion fatigue test to confirm their fatigue attenuation performance and service life. [0003] At present, the most widely used is to do forced torsion test on such torsion parts through hydraulic servo or electric servo system. Waveform parameters such as torque magnitude, frequency, and average value (also called waveform base value) are completely controlled by the control system. The advantage of this approach is that as long as sufficient energy is provided (for example, hydraulic servo requires a large pumping station system to provide energy), the waveform is easy to control, and various waveforms can be realized (sinusoidal or sine-like waveforms are still the main ones in practical applications). ...

Claims

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Application Information

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IPC IPC(8): G01M13/00
CPCG01M13/00Y02E60/16
Inventor 唐家兵陈鋆
Owner 浙江晟克科技有限公司
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