Regulation of Hydraulic Pumps in the Drive System of Hydraulic Excavators

XVII International Conference on Systems, Automatic Control and Measurements, SAUM 2024 (pp. 202-205)

АУТОР(И) / AUTHOR(S): Vesna Jovanović , Dragoslav Janošević , Jovan Pavlović , Nikola Petrović

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DOI:  10.46793/SAUM24.202J

САЖЕТАК / ABSTRACT:

The paper presents the results of the conducted researches related to the analysis of the parameters of the drive system, the crawler hydraulic excavator, with hydraulic pumps with collective regulation according to the criterion of constant hydraulic power and the regulator of ideal hyperbolic characteristics. A crawler excavator weighing 16,000 kg with a three-member manipulator with boom, arm and bucket with a volume of 0.6 m3 was tested. During the test, the following parameters of the hydrostatic system of the excavator were measured and determined: pressure and flow in the pressure lines of the hydraulic pumps, the number of revolutions of the diesel engine and the hydraulic power of the hydraulic pumps during the operational task with operations: digging, transfer, unloading of land of category III and returning to a digging start point.

КЉУЧНЕ РЕЧИ / KEYWORDS:

drive system, regulation

ПРОЈЕКАТ/ ACKNOWLEDGEMENT:

This research was financially supported by the Ministry of Education, Science and Technological Development of the Republic of Serbia (Contract No. 451-03-9/2021-14/200109).

ЛИТЕРАТУРА / REFERENCES:

  1. Jovanović, A Contribution to the synthesis of the slewing platform drive mechanism of hydraulic excavators, doctoral dissertation, University of Niš, Faculty of Mechanical Engineering, Niš, 2008.
  2. Janošević, Designing mobile machines, in Serbian, University of Niš, Faculty of Mechanical Engineering, Niš, 2006.
  3. Janošević, V. Jovanović, Synthesis of drive mechanisms of hydraulic excavators, in Serbian, University of Niš, Faculty of Mechanical Engineering, Niš, 2006.
  4. International Mobile Hydrauliks Conference, Mobile 2003, Ulm, Bosch Rexroth AG, Mobile hydraulics, Elchingen, 2003.
  5. BoschRexrothAG, Produktkatalog Mobilhydraulik, Ulm, Elchingen, 2010.