Physical modeling of contact interaction of mechanical gears of technological machines

During long-term operation of mechanical transmissions in the modes of alternating and cyclically repetitive loads, significant contact stresses arise that change according to certain cyclic laws. A feature of contact stresses are large gradients of their distribution, as well as locality. The process of fatigue failure occurs as a result of the initiation and development of microcracks. The nucleation and development of microcracks is significantly affected by the state of the surface, the nature of loading (contact stresses, friction, the presence of a lubricant layer, etc.), material properties (mechanical characteristics, hardness, tendency to harden or accumulate plastic deformations), scale factor, temperature, corrosive effect of the environment, etc. To study the wear resistance of gearing and friction transmissions, rolling bearings, laboratory equipment was designed and methods were developed that allow physically modeling the processes under study.

References

[1] Platov S.I., Chumikov A.M., Zhirkin Yu.V. et al. Stend dlya ispytaniya zubchatykh peredach [Gear test stand]. Patent RF 88445. Appl. 29.06.2009, publ. 10.11.2009. (In Russ.).

[2] Terent’yev D.V., Platov S.I., Ogarkov N.N. et al. Study on properties of lubricants at exploitation of blast furnaces skip winches. Chernye metally, 2017, no. 8, pp. 34–37. (In Russ.).

[3] Terent’yev D.V. Studying the amount of solid deposit and the ways to reduce it in order to extend the life of blast furnace components. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University], 2017, vol. 15, no. 2, pp. 28–34, doi: https://doi.org/10.18503/1995-2732-2017-15-2-28-34 (in Russ.).

[4] Terent’yev D.V., Platov S.I., Zhirkin Yu.V. et al. Physical modelling of service conditions of reduction gearing of blast-furnace skip winches. Izvestiya TulGU. Tekhnicheskie nauki [News of the Tula state university. Technical sciences], 2017, no. 2, pp. 208–218. (In Russ.).

[5] Ogarkov N.N., Platov S.I., Shemetova E.S., et al. Oil absorption capacity of the contact surfaces in metal-forming processes. Metallurg, 2017, no. 1, pp. 79–82. (In Russ.). (Eng. version: Metallurgist, 2017, vol. 61, no. 1–2, pp. 58–62, doi: https://doi.org/10.1007/s11015-017-0454-4)

[6] Zhirkin Yu.V., Mironenkov E.I., Dudorov E.I. Lubrication of working-roller bearings in rolling mills. Izvestiya vysshikh uchebnykh zavedeniy. Chernaya metallurgiya, 2007, no. 4, pp. 54–56. (In Russ.). (Eng. version: Steel Transl., 2007, vol. 37, no. 4, pp. 350–352, doi: https://doi.org/10.3103/S0967091207040080)

[7] Zhirkin Yu.V., Zhelezkov O.S., Mironenkov E.I. et al. Ustanovka dlya izmereniya momenta soprotivleniya v podshipnikakh kacheniya [Plant for measurement of resistance moment in rolling bearings]. Patent RU 55130. Appl. 20.02.2006, publ. 27.07.2006. (In Russ.).

[8] Puzik E.A., Zhirkin Yu.V. Analytical and experimental method used for parameters definition in rolling bearings of the supports of working rollers in the hot rolling mill 2000. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University], 2010, no. 4, pp. 52–56. (In Russ.).

[9] Puzik E.A., Zhirkin Yu.V., Mironenkov E.I. Investigation into conditions of elastohydrodynamic lubrication in the rolling bearings of the working rolls of quarto mill stands. Proizvodstvo prokata [Rolled Products Manufacturing], 2011, no. 7, pp. 44–46. (In Russ.).

[10] Zhirkin Yu.V., Puzik E.A. Analytical and experimental method used for definition the temperature coefficient of the elasto-hydrodynamic lubrication. Vestnik Magnitogorskogo gosudarstvennogo tekhnicheskogo universiteta im. G.I. Nosova [Vestnik of Nosov Magnitogorsk State Technical University], 2013, no. 1, pp. 73–75. (In Russ.).

[11] Kharchenko M.V., Dema R.R., Nefed’yev S.P. et al. A universal test facility for determining tribotechnical characteristics of lubricants based on the serial friction machine SMTs-2. Izvestiya vysshikh uchebnykh zavedeniy. Mashinostroenie [BMSTU Journal of Mechanical Engineering], 2017, no. 10, pp. 60–68, doi: http://dx.doi.org/10.18698/0536-1044-2017-10-60-68 (in Russ.).

[12] ASTM D 2782–20. Standard test method for measurement of extreme-pressure properties of lubricating fluids (Timken method), doi: https://doi.org/10.1520/D2782-20

[13] GOST R 51860–2002. Obespechenie iznosostoykosti izdeliy. Otsenka protivoiznosnykh svoystv smazochnykh materialov metodom «shar-tsilindr» [State standard GOST R 51860–2002. Products wear resistance assurance. Evaluation of lubrication materials antiwear properties by "ball-cylinder" method]. Moscow, Gosstandart Publ., 2002. 10 p. (In Russ.).

[14] Ivanov M.N. Detali mashin [Machine parts]. Moscow, Vysshaya shkola Publ., 1976. 399 p. (In Russ.).