Breakage Monitoring of Executive Body Cutters in Continuous Miner According to Mechanical Vibration Parameters. Part 1. Research Methodology

Vibromonitoring is the most methodologically developed and technically equipped with recording tools and data processing approach. However, in the sources of scientific and technical information about mining it is presented much less than other monitoring methods. One of the promising ways to solve this problem, in particular monitoring the breakage of cutting disc cutters of an executive body, is to use parameters of natural oscillations of the parts of gearboxes that occur during impulse loading due to such breakages. It should be noted that in the technically complex equipment of the mining industry, in particular in mining machines, there are many sources of vibration, the vibtaions of which are superimposed on each other. And it is not always possible to isolate and identify the required informative signal with the source. With this in mind the paper presents a research methodology on the possibility of monitoring the breakage of the executive body cutters on the example of the continuous miner “Universal 600” according to the parameters of natural vibrations of the executive body cutting discs arising from the breakage of the cutters. The place of registration of these vibrations is determined – the gearbox handles, on the output shafts of which cutting discs are placed. The frequency of such vibrations is set equal to ~5 Hz. The possibility of using the AGAT-M vibration analyzer with M/AC102-1A vibration sensors as a means of further research has been substantiated in the paper. The paper considers an option of placing vibration sensors on non-rotating gear housings of the executive body drive. An algorithm for recording vibration parameters has been developed, which makes it possible to separate its sources.

1. Claveau F., Fortier P., Lord S., Gingras D. (1996) Mechanical Vibration Analysis Using an Optical Sensor. Proceedings of 1996 Canadian Conference on Electrical and Computer Engineering, 2, 876–879. https://doi.org/10.1109/CCECE.1996.548292.

2. Dalpiaz G. A., Rivola A., Rubini R. (1997) Kineto-Elastodynamic Model of a Gear Testing Machine. Proceedings of International Conference on Mechanical Transmissions and Mechanisms, MTM'97. China, 549–553.

3. Amabili M., Rivola A. (1997) Dynamic Analysis of Spur Gear Pairs: Steady-State Response and Stability of the SDOF Model with Time-Varying Meshing Damping. Mechanical Systems and Signal Processing, 3 (11), 375–390. https://doi.org/10.1006/mssp.1996.0072.

4. Kostyukov V. N., Boychenko S. N., Kostyukov A. V. (1998) Method for Diagnosing and Predicting Technical State of Machines by Body Vibration. Patent Russian Federation No 2103668 (in Russian).

5. Barkov A. V., Barkova N. A. (1999) Intelligent Systems for Monitoring and Diagnostics of Machines by Vibration. Sb. Trud. Peterburgskogo Energeticheskogo Instituta Povysheniya Kvalifikatsii Mintopenergo i Instituta Vibratsii SShA (Vibration Institute, USA) [Collection of Works of Petersburg Power Engineering Institute for Advanced Studies of the Ministry of Fuel and Energy of the Russian Federation and the Vibration Institute, USA]. St. Petersburg, Iss. 9 (in Russian).

6. Barkov A. V., Barkova N. A., Azovtsev A. Yu. (2000) Monitoring and Diagnostics of Rotary Machines by Vibration. Saint-Petersburg, Publishing House of Saint-Petersburg State Marine Technical University. 169 (in Russian).

7. Parker Jr. B. E., Ware H. A., Wipf D. P., Tompkins W. R., Clark B. R., Larson E. C., Poor H. V. (2000) Fault Diagnostics Using Statistical Change Detection in the Bispectral Domain. Mechanical Systems and Signal Processing, 14 (4), 561–570. https://doi.org/10.1006/mssp.2000.1299.

8. Basinyuk Ya.V., Ishin N. N., Uss I. N., Basinyuk V. L., Mardosevich E. I., Antyushenya L. M. (2002) Device for Vibroacoustic Diagnostics of Meshed Gears: Patent of the Republic of Belarus No 632 U (in Russian).

9. Basinyuk Ya. V. (2002) Vibration Diagnostics of Gear Transmissions Based on the Use of Information Technologies. Sovremennye Metody Konstruirovaniya Mashin. Raschet, Konstruirovanie i Tekhnologiya Izgotovleniya: Sb. Nauch. Tr. [Modern Methods of Machine Design. Calculation, Design and Manufacturing Technology: Collection of Scientific Papers]. Minsk, Tekhnoprint Publ., Iss. 1, Vol. 2, 440–450 (in Russian).

10. Dempsey P., Afjeh A. (2004) Integrating Oil Debris and Vibration Gear Damage Detection Technologies Using Fuzzy Logic. Journal of the American Helicopter Society, 49 (2), 109–116. https://doi.org/10.4050/JAHS.49.109.

11. Ishin N. N. Dynamics and Vibration Monitoring of Gears. Minsk, Belaruskaya Navuka Publ. 432 (in Russian).

12. Barkov A. V., Barkova N. A., Degterev S. G., Komyakov A. V. (2014) Technology of Vibration Diagnostics of Rolling Bearings of Wheel-Motor Blocks of Locomotives. Northwestern Training Center. Available at: https://vibro-expert.ru/texnologiya-vibracionnogo-diagnostirovaniya-podshipnikov-kacheniya-kolesno-motornix-blokovlokomotivov.html.

13. Barkov A. V. (2015) Capabilities of Stationary Systems for Vibration Monitoring and Operational Vibration Diagnostics. Northwestern Training Center. Available at: https://vibro-expert.ru/vozmojnosti-stacionarnix-sistem-vibromonitoringa-i-operativnoie-vibrodiagnostiki.html.

14. Ishin N. N. (2015) Theoretical and Experimental Methods and Means of Vibration-Pulse Diagnostics of Gears of Transmission Units of Mobile Machines. Minsk. 52 (in Russian).

15. Ishin N. N., Goman A. M., Skorokhodov A. S., Dakalo Yu. A., Natur'eva M. K. (2018) Diagnostics and Monitoring of Technical Condition on the Way to “Industry 4.0”. Aktual'nye Voprosy Mashinovedeniya: Sbornik Nauchnykh Trudov [Topical Issues of Mechanical Engineering: a Collection of scientific Papers], Minsk, (7), 245–250 (in Russian).