An Ultrasonic On-Line Measuring Device for Abrasion Amount

Abstract

The invention discloses an ultrasound online measurement device for wearing capacity. The ultrasound online measurement device for the wearing capacity comprises a friction pair upper test piece, a friction pair lower test piece, an ultrasonic probe, an impulse transmission receiver, a digital oscilloscope and a computer; the friction pair upper test piece is located on the friction pair lower test piece, the ultrasonic probe is located on the bottom of the friction pair lower test piece and is connected with the impulse transmission receiver through a guide line, and the impulse transmission receiver is sequentially connected with the digital oscilloscope and the computer through the guide line; the impulse transmission receiver sends an electrical impulse to the ultrasonic probe to stimulate the generation of an ultrasonic wave, meanwhile, the ultrasonic probe sends back the received ultrasonic wave to the impulse transmission receiver, the ultrasonic wave is sampled and digitalized by the digital oscilloscope, and then self control and data storage in the sampling process are achieved through the computer to calculate the wearing capacity of a friction pair. The ultrasound online measurement device for the wearing capacity has the advantages that the device is non-destructive, the signal is stable, and sampling and the analysis are easy; the structure is simple, the operation is convenient, the effect is good, and the device has wide practicability.

Description

technical field [0001] The invention relates to an ultrasonic on-line measuring device for wear amount, which is especially suitable for ultrasonic on-line measurement of wear amount in friction and wear tests. Background technique [0002] Under the pressure of the current fragile environmental carrying capacity and extensive resource consumption, the design and manufacture of modern equipment urgently need to have the advantages of environmental friendliness, resource conservation and energy efficient utilization. However, friction has been consuming large amounts of energy as an undesirable drag in most mechanical structures. Therefore, the online monitoring technology of the friction interface is of great significance for energy saving and emission reduction, and improving the reliability and service life of equipment. At the same time, friction is a ubiquitous and very complex dynamic process, which is affected by many factors. So far, the research methods of tribology...

AI Technical Summary

Problems solved by technology

However, none of the above detection methods is convenient for online measurement of wear amount.

Taking the weighing method as an example, it is necessary to install the friction pair test piece on the friction and wear testing machine for a period of friction and wear test, then remove the test piece, clean and dry the surface of the test piece, and use an analytical balance Measure the weight change of the test piece before and after the friction and wear test to obtain the wear amount during the friction and wear process, but this process is difficult to achieve in-situ, fast and online measurement

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