DEVELOPMENT OF OPERATING DRIVE SYSTEMS IN ENGINEERING EQUIPMENT

Engineering machines being in operational service with military units of  engineer troops are fit to their purpose and their application is relevant in modern conditions. Maintenance of operating conditions in engineering equipment which was produced earlier by the USSR enterprises is considered as a rather complicated task due to lack of spare parts because their production has been discontinued.

One of the approaches used for maintenance of engineering equipment combat capabilities is modernization of operating drive systems that presupposes replacement of mechanical systems in working element drives by hydrostatic drives which are realized while using modern element base. Usage of hydraulic units in drive systems being in mass production for replacement of mechanical systems manufactured earlier in small batches makes it possible to reduce labour inputs for maintenance and repair of machines. The paper presents some possibilities for development of operating drive systems in engineering equipment. The proposed approach is given through an example of  engineering obstacle-clearing vehicle (IMR-2M) and excavation machines (MDK-3 and MDK-2M).

Application of a hydraulic drive in working elements of the excavation machines permits to withdraw from cardan  shafts, a gear box, a rotary gear and an overload clutch. A hydraulic motor of the cutter and thrower drive is mounted  on a working element gearbox. While executing modernization of hydraulic systems in excavation machines a pump unit has been proposed for the cutter and thrower drive which consists of a controlled pump and a system for automatic maintenance of the pump operational parameters. While developing the operating drive systems in engineering equipment in accordance with the proposed requirements it is possible to simplify drive systems of working elements and  ensure reliable machinery operation in the units of engineer troops. 

1. Leonovich, I. I., Kotlobai, A. Ya. (2005). Machines for highway construction, repair and maintenance. Minsk: BNTU. 552 p. (in Russian).

2. Rannev, A. V., Korelin, V. F., Zhavoronkov, A. V., Shloido, G. A., Makushkin, D. O., Timofeev, V. A., Telushkin, A. V., Erofeev, L. V., Viazovikin, V. N., Zaitsev, L. V., Nevzorov, L. A., Kuzin, E. N. (1991). Construction machines: Reference Book: in 2 Volumes. Vol. 1: Machines for construction of industrial and civil buildings and highways. 5th Revised Edition. ?oscow, Mashinostroenie. 496 p. (in Russian).

3. Kotlobai, A. Ya., Kotlobai, A. A., Tamelo, V. F. (2013). Formation of modernization directions for excavation machines. Nauka i tekhnika [Science and Technique], 5, 54–59 (in Russian).

4. Kotlobai, A. Ya., Kotlobai, A. A., Shliakhtun, V. Iu., Tamelo, V. F. (2014). Analysis of directions and possibilities for modernization of engineering equipment of the Armed Forces. Nauka i voennaya bezopasnost [Science and Military Safety], 1, 27–30 (in Russian).

5. Korobkin, V. ?., Kotlobai, A. Ya., Kotlobai, A. A. (2010). Digital units for hydraulic drives of construction and road-making machines. Stroitelnye i dorozhnye mashiny [Construction and Road-Making Machines], 5, 43–46 (in Russian).

6. Korobkin, V. ?., Kotlobai, A. Ya., Kotlobai, A. A., Tamelo, V. F. (2012). On prospective directions for development of hydraulic drive units in construction and road-making machines. Nauka i tekhnika [Science and Technique], 6, 71–76 (in Russian).

7. Vavilov, ?. V., Kotlobai, A. Ya., Kotlobai, A. A. (2014). Development of equipment drives for construction and road-making machines. Stroitelnye i dorozhnye mashiny [Construction and Road-Making Machines], 9, 35–41 (in Russian).

8. Olshansky, A. V. (1986). Machines of engineering armament. Part I. General description. Machines for passing through demolitions and mechanization of earth works. Moscow, Military Publishing House. 422 p. (in Russian).

9. Platonov, V. F., Korobkin, V. A., Kozhevnikov, V. S., Platonov, S. V. (1998). Multi-purpose tracked chassis. ?oscow, Mashinostroenie. 342p. (in Russian).

10. Kotlobai, A. Ya., Kotlobai, A. A., Tamelo, V. F., Sukharev, D. V., Zozulia, I. V. (2014). Hydraulic operating drive system of engineering obstacle-clearing vehicle. Patent Republic of Belarus no 10143 (in Russian).

11. Karavaev, V. ?. (2000). JSC “Pnevmostroimashina” is a leading Russian enterprise on designing, manufacturing and sale of axial-piston hydraulic machines. Stroitelnye i dorozhnye mashiny [Construction and Road-Making Machines], 6, 5–8 (in Russian).

12. Kotlobai, A. Ya., Kotlobai, A. A., Tamelo, V. F., Grigorenko, S. V. (2013). Hydraulic system for operating equipment of excavation machine. Patent Republic of Belarus no 9664 (in Russian).