INCREASING THE PERFORMANCE OF WHEELED MACHINES DUE TO REGULATION OF AIR PRESSURE IN TIRES

UDC 621.3.027.542.3

  • Kim Yuriy Alekseevich − PhD (Engineering), Assistant Professor, the Department of Engineering Graphics for Machine-Building. Belarusian National Technical University (12, Ya. Kolasa str., 220013, Minsk, Republic of Belarus). E-mail: igmp_atf@bntu.by

  • Naskovets Mikhail Trofimovich − PhD (Engineering), Associate Professor, Professor, the Department of Logging Machinery, Forest Roads and Timber Production Technology. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: naskovets@belstu.by

  • Zharkov Nikolay Ivanovich − PhD (Engineering), Senior Researcher, the Department of Logging Machinery, Forest Roads and Timber Production Technology. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: zharkov@belstu.by

  • Gil Vitaliy Ivanovish − PhD (Engineering), Senior Lecturer, the Department of Engineering Graphics. Belarusian State Technological University (13a, Sverdlova str., 220006, Minsk, Republic of Belarus). E-mail: v.gil@belstu.by

DOI: https://doi.org/10.52065/2519-402X-2022-258-2-5-19

Key words: flotation, tire inflation, air pressure, joint sealing, tightness, energy consumption.

For citation: Kim Yu. A., Naskovets M. T., Zharkov N. I., Gil V. I. Increasing the performance of wheeled machines due to regulation of air pressure in tires. Proceedings of BSTU, issue 1, Forestry. Nature Management. Processing of Renewable Resources, 2022, no. 2 (258), pp. 125–129 (In Russian). DOI: https://doi.org/10.52065/2519-402X-2022-258-2-5-19.

Abstract

In connection with the growing production of new off-road vehicles (forestry, agricultural, etc.) equipped with large-size tires, the problem of improving their performance arises. To address this issue, studies have been conducted that study the effect of large-size tires on the soil.

In the course of laboratory studies, the load on the road from the car was determined. The object of field research was a vehicle equipped with a centralized tire inflation system (CNS) for the rear wheels. Works related to the development of the design and installation of the CNS system were also carried out. It has been established that the time of inflation of the tires of the rear wheels, using the CNS, ranging from 0.05 MPa to 0.15 MPa, is 840 s at the maximum load on the wheel, and 600 s at the minimum load. The air pressure drop time under the same conditions is 1200 and 1500 s, respectively.

During the operation of off-road vehicles equipped with the CNS system, it turned out that its tightness is insufficient. The main share of failures of pneumatic systems relates to the seals of the rotating joints of air ducts.

In order to improve the performance and tightness of the CNSh system, a developed device for fastening a block of seals in the wheel hub is proposed.

As the results of the research have shown, the main way to reduce the compacting effect of the wheel mover on the soil is to reduce the values of the maximum pressures in the contact.

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