DOI: https://doi.org/10.20998/2079-0775.2020.1.15

THE EFFECT OF THE RADIAL CLEARANCES ON THE DYNAMIC PROCESSES IN ROLLING BEARINGS

Sergii Gavrylov, Nikolay Ishin, Arkadiy Goman, Andrey Skorokhodov, Yuriy Dakalo

Анотація


A method for calculating the parameters of shock pulses generated in rolling bearings due to the presence of radial clearance in them is proposed. The method is a further development of theoretical research in the scientific direction of vibration-pulse diagnostics in relation to the operational assessment of the technical condition of bearing units as components of the gear drive mechanism, which largely determine the drive resource as a whole. The calculation is based on the consideration of the precession movement of the bearing axis, which it makes during the rotation of its shaft, and the theory of shock interaction of elastic bodies by G. Hertz. The mechanism of occurrence of shock pulses has been studied with an additional introduction to the calculation of the radial force acting on the shaft. It is shown that wear, which causes an increase in the working radial clearance between the races and the rolling bodies in the bearing, increases the speed and amplitude of the impact interaction of the inner ring with the rolling bodies. An example of calculating the parameters of shock pulses in ball radial single-row bearings of the 307 series is given. Conclusions are made about the prospects of using the developed method for diagnostics and forecasting the remaining life of bearings of transmission units of mobile machines.

Ключові слова


rolling bearing; dynamic process; technical condition; diagnostics; radial clearance; shock pulse; shock pulse parameters

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Посилання


Fomin M. V. Raschety opor s podshipnikami ka-chenya[Calculations of supports with rolling bearings]. Moskva: Izd-vo MGTU im. N. E. Baumana, 2001. 98 p. 2. Internal Clearance & Its Effect on Bearing Fatigue Life. URL: http://www.Pumpsandsystems.com/topics/motors/internal-cliarance-its-effect-bearing-fatgue-life. (accessed13.08.2016). 3. Demokritov V. N., Nedovodeev V. Ya., D'yakov I. F., Oleshkevich A. V., Demokritova A. V., Sadriev R. M. Osnovy proektirovaniya mashin.[Fundamentals of machine design]. Ul'yanovsk: UlGTU, 2007. Ch. 2. 236 p. 4. Vnutrennie zazory v podshipnikah kacheniya. [Internal clearances in rolling bearings]. URL: https://completion.ru/timken/ vnutrennie-zazory-v-podshipnikah-kachenija.html. (accessed13.08.2016). 5. Michael M. Khonsari, E. RichardBooser. AppliedTribology: BearingDesignandLubrication. JohnWiley&Sons, 2017. 672 p. 6. Kudrevatyh A. V. Diagnostika reduktorov motor-koles kar'ernyh samosvalov na osnove kontrolya za iznosom podshipnika. [Diagnosticsofgearboxesofmotor-wheelsofquarrydump trucks based on monitoring of bearing wear]Vestnik Kuzbasskogo tekhnicheskogo universiteta. Kemerovo, 2017, no. 2, pp. 87–92. 7. Gioev Z. G., Prihod'ko V. M., Kozaev V. S. Vibracionnoe prognozirovanie tekhnicheskogo sostoyaniya tyagovyh elektricheskih mashin lokomotivov. [Vibration forecasting of the technical condition of traction electrical machines of locomotives] Izvestiya Transsiba. Omsk, 2016, no. 1 (25), pp. 15–25. 8. Tomović R., Miltenović V., Banić M., Miltenović A. Vibration response of rigid rotor in unloaded rolling element bearing. Inter-national Journal of Mechanical Science. 2010, vol. 52, no. 9. pp. 1176–1185. 9. Ishin N. N. Dinamika i vibromonitoring zubchaty`kh peredach. [Dynamics and vibration monitoring of gears]. Minsk: Belarus. navuka, 2013. 432 p. 10. Ishin N. N., Goman A. M., Skorohodov A. S., Natur'eva M. K., Adashkevich V. I. Prognozirovanie ostatochnogo resursa zubchatyh privodov na osnove vibracionno-impul'snogo diagnostirovaniya. [Predicting the remaining life of gear drives based on vibration-pulse diagnostics]. Mekhanika mashin, mekhanizmov i materialov, Minsk, 2016, no 1 (34), pp. 36–39. 11. Gruntovich N. V. Montazh, naladka i ekspluataciya elektrooborudovaniya. [Installation, commissioning and operation of electrical equipment]. Minsk: Novoe znanie, 2013. 271 p. 12. Birger Ya. G., Panovko I. A. [I dr.]. Prochnost', ustojchivost', kolebaniya.Spravochnik v 3-h t. [Strength, stability, vibrations].OOO «Kniga po trebovaniyu», 2012, T. 2. 463 p. 13. Biderman V. L. Teoriya mekhanicheskih kolebanij. [Theory of mechanical vibrations]. Moskva: Lenand, 2017. 416 p.


Пристатейна бібліографія ГОСТ


1. Фомин М. В. Расчеты опор с подшипниками качения.Москва: Изд-во МГТУ им. Н. Э. Баумана, 2001. 98 с. 2. Internal Clearance & Its Effect on Bearing Fatigue Life. URL: http://www.Pumpsandsystems.com/topics/motors/internal-cliarance-its-effect-bearing-fatgue-life. (дата обращения 13.08.2016). 3. Демокритов В. Н., Недоводеев В. Я., Дьяков И. Ф., Олешке-вич А. В., Демокритова А. В., Садриев Р. М. Основы проек-тирования машин. Ульяновск: УлГТУ, 2007. Ч. 2. 236 с. 4. Внутренние зазоры в подшипниках качения. URL: https://completion.ru/timken/vnutrennie-zazory-v-podshipnikah-kachenija.html. (дата обращения 13.08.2016). 5. Michael M. Khonsari, E. Richard Booser. Applied Tribology: Bearing Design and Lubrication. JohnWiley&Sons, 2017. 672 с. 6. Кудреватых А. В. Диагностика редукторов мотор-колес карь-ерных самосвалов на основе контроля за износом подшипни-ка.Вестник Кузбасского технического университета. Кеме-рово, 2017. № 2. С. 87–92. 7. Гиоев З. Г.,Приходько В. М., Козаев В. С. Вибрационное про-гнозирование технического состояния тяговых электрических машин локомотивов. Известия Транссиба. Омск, 2016. № 1 (25). С. 15–25. 8. Tomović R., Miltenović V., Banić M., Miltenović A. Vibration response of rigid rotor in unloaded rolling element bear-ing.International Journal of Mechanical Science. 2010.Vol. 52, no. 9, pp. 1176–1185. 9. Ишин Н. Н. Динамика и вибромониторинг зубчатых передач Минск: Беларус. Навука, 2013. 432 с. 10. Ишин Н. Н., Гоман А. М., Скороходов А. С., Натурьева М. К., Адашкевич В. И. Прогнозирование остаточного ресурса зуб-чатых приводов на основе вибрационно-импульсного диагностирования.Механика машин, механизмов и материалов, Минск, 2016, № 1 (34). C. 36–39. 11. Грунтович Н. В. Монтаж, наладка и эксплуатация электро-оборудования. Минск: Новое знание, 2013. 271 с. 12. Биргер Я. Г., Пановко И. А. [и др.]. Прочность, устойчивость, колебания. Справочник в 3-х т. ООО «Книга по требованию», 2012, Т. 2. 463 с. 13. Бидерман В. Л. Теория механических колебаний. Москва: Ленанд, 2017. 416 с.




ISSN 2079-0775. Вісник Національного Технічного Університету «ХПІ».