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    Wyświetlanie 1-3 z 3
    Tytuł:
    Lightweight LHD BEV loader with an individual drive for each wheel
    Autorzy:
    Korski, Wojciech
    Horak, Wojciech
    Bołoz, Łukasz
    Niestrój, Roman
    Kozłowski, Artur
    Powiązania:
    https://bibliotekanauki.pl/articles/27315559.pdf
    Data publikacji:
    2023
    Wydawca:
    STE GROUP
    Tematy:
    self-propelled mining machines
    LHD loaders
    electric drive
    battery power
    BEV
    Opis:
    The paper is devoted to the construction and design solutions of the power supply and drive systems of a prototype, lightweight LHD (Load-Haul-Dump) loader with an innovative "in-wheel drive" transmission system. The loader is a Battery Electric Vehicle (BEV) with replaceable energy storage. It is intended for use in underground mines with no explosion hazard, especially in metal ore mines. The developed model contains four independent, electric drive systems installed in the road wheels. The paper presents the results of simulation tests, which enabled estimating the required driving power and electricity demand in various regimes and working conditions of the loader. The results of the calculations were used to determine the parameters of the drive system components and the battery capacity. Challenges and problems faced by constructors of BEV LHD loaders with an in-wheel drive have been pointed out.
    Źródło:
    Management Systems in Production Engineering; 2023, 3 (31); 281--289
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Global Trends in the Development of Battery-Powered Underground Mining Machines
    Autorzy:
    Bołoz, Łukasz
    Powiązania:
    https://bibliotekanauki.pl/articles/2064588.pdf
    Data publikacji:
    2021
    Wydawca:
    STE GROUP
    Tematy:
    self-propelled mining machines
    battery power
    battery drive
    underground mining
    braking energy recovery
    battery replacement
    Opis:
    The growing requirements and needs of users as well as a strong emphasis on pro-ecological solutions cause an increasing interest in battery-powered electric mining machines. Internal combustion machines consume oxygen, generate noise, fumes and heat, which affects work in underground mines, and minimizing these factors is expensive. Battery solutions allow achieving the same operational parameters of machines with significantly higher safety, comfort and work culture. The problem, however, is their range or working time. The article presents global trends in the development of battery-operated machines for underground mining. Various machines in battery-powered versions have been presented. The applied solutions have been discussed, especially in the field of battery replacement or recharging and braking energy recovery. Manufacturers around the world offer more and more battery-powered machines. Some producers are announcing complete replacement of combustion solutions with electric ones within the next few years. There are also hydrogen machines on the horizon, which will probably be the next step on the road to a zero-emission industry.
    Źródło:
    Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 178--189
    2545-2827
    Pojawia się w:
    Multidisciplinary Aspects of Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Assessment of the stability of bev lhd loader
    Autorzy:
    Bołoz, Łukasz
    Kozłowski, Artur
    Horak, Wojciech
    Powiązania:
    https://bibliotekanauki.pl/articles/27315550.pdf
    Data publikacji:
    2022
    Wydawca:
    STE GROUP
    Tematy:
    self-propelled mining machines
    LHD loaders
    machine stability
    parametric modelling
    dynamic simulations
    mathematical model
    battery power
    Opis:
    The article concerns the computational model for analysing the stability of the BEV LHD loader. Works were carried out to develop an innovative, light battery-powered loader, which was the subject of an R&D project implemented in cooperation with Bumech S. A. Compared to the existing solutions of loaders with similar load capacity, this one is distinguished by the use of an individual electric drive in each wheel and a replaceable battery. A physical and mathematical model was developed taking into account the specificity of the BEV LHD loader. In the model, the masses of the battery, individual drives, the platform and excavated material are taken into account separately. The developed model allows determining the loader wheel pressure on the floor, depending on the location of its components’ centres of gravity, the turning angle of the machine, the amount of excavated material in the bucket and the position of the bucket. The input parameters also include the longitudinal and transverse excavation slope angles. In addition, the model enables determining the inner and outer turning radius of the loader. To verify the theoretical model, dynamic simulation tests were carried out. The results of simulation analyses confirmed the correctness of the developed theoretical model. The model was used to prepare a calculation sheet for analysing the stability on the basis of the adopted parameters. In the article, selected results of the conducted stability analyses have been presented, along with the proposed parameters ensuring the loader’s stability. The developed theoretical model enables a quick assessment of the loader’s stability, which, due to a number of innovative solutions, differs from existing designs. The structure of the loader at the design stage is subject to numerous modifications, which affect the distribution of the centres of gravity of individual components. The developed model of the loader is a useful, parameterized tool that allows assessing the stability and the values of the turning radii of the machine.
    Źródło:
    Management Systems in Production Engineering; 2022, 4 (30); 377--387
    2299-0461
    Pojawia się w:
    Management Systems in Production Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-3 z 3

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