Umidbek Boltaevich Yusupov PhD., associate professor of the department of Vehicle Engineering, Tashkent State Transport University, Tashkent, Uzbekistan, E-mail.
Valeriy Anatolevich Topalidi Candidate of technical sciences, Professor of department Transport intelligent systems engineering, Tashkent state transport university, Tashkent, Uzbekistan, E-mail.
Akhmadjon Akmaljon o'g'li Anvarjonov Assistant of the department of Vehicle Engineering, Tashkent State Transport University, Tashkent, Uzbekistan, E-mail.


At the moment, the scientific society is actively conducting research to address issues such as reducing transport costs on road transport, efficient use of material resources, as well as the choice of trucks and tires that are adaptive to specific operating conditions. For the first time, coefficients for correcting the mileage of tires of specialized Kgp vehicles were developed and introduced into scientific circulation, depending on the category of rock strength on the scale of Prof. M.M. Protodiakonov, on the basis of which quarry roads were laid. Based on the results of the study, a “Handbook on the rules of operation and rationing of the resource of motor vehicle tires in the conditions of the Almalyk Mining and Metallurgical Combine (AMMC) was introduced", developed on the basis of a universal methodology for rationing the mileage of vehicle tires, taking into account work in career conditions. As a result of the practical use of the recommendations, the mileage rate of tires of specialized vehicles has increased to 20%.



:rationing, tire wear, specialized vehicles, quarry roads, rock fortress.

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References: 1. Knoroz V.I. The work of a car tire. - M.: Transport, 1976. - 238 p. 2. Tarnovsky V.N., Gudkov V.L., Tretyakov O.B., Automobile tires. M.: Transport 1990.-272 p. 3. Tretyakov O.B. Friction and tire wear / Tretyakov O.B., Tarnovsky V.N., Gudkov V.A. - M.: Chemistry, 1992. - 176 p. 4. Topalidi V.A., Yusupov U.B. Wear resistance of specialized vehicles tires depending on the category of strength of quarry roads // Automotive industry. - 2020. - No. 12. - pp. 20-22. Valeriy Topalidi, Umidbek Yusupov, Alijon Babayev. Wear resistance of specialized vehicles tires on quarry roads // IJMPERD. ISSN (P): 2249-6890; ISSN (E): 2249-8001. Vol.10. Issue 5. Oct 2020. Р. 643 – 658. 6. Topalidi V.A., Yusupov U.B. Rationing of the resource of truck tires in quarry conditions // Automotive industry. -2019. -No.11. - pp. 27-29. 7. Topalidi V.A., Yusupov U.B., Omarov J.A. The main factors determining the efficiency of large-sized tires. International scientific and practical conference "Problems of increasing the efficiency of modern production and energy conservation”. October 3 - 4, 2018 - Andijan, - p. 89-94. 8. Gudkov D.V. Development of a methodology for rationing the mileage of bus tires under operating conditions: Diss... Candidate of Technical Sciences. - Volgograd, 1999.-137 p. 9. GOST 28169-89. The tires are pneumatic. Methods for determining tire wear resistance during road tests. M. Publishing House of Standards. 1989, 13 p. 10. Report TIDCMAR under Contract No. 132 dated April 13, 2016 on the topic: Determination of scientifically based mileage standards for tires of motor vehicles operated under the conditions of JSC "Kizilkumcement". 11. Report of the educational research center "BILIMINTERTRANS" under contract No. 11 with JSC AMMC "Research and rationing of the resource of tires of technological transport KrAZ-65055 and MAN 33.360 с/b No. 2 in the quarry conditions of the AMD". 2020. 12. 13.


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