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  <front>
    <journal-meta>
      <journal-id journal-id-type="issn">2411-3336</journal-id>
      <journal-id journal-id-type="eissn">2541-9404</journal-id>
      <journal-title-group>
        <journal-title xml:lang="ru">Записки Горного института</journal-title>
        <journal-title xml:lang="en">Journal of Mining Institute</journal-title>
      </journal-title-group>
      <publisher>
        <publisher-name xml:lang="ru">Санкт-Петербургский горный университет императрицы Екатерины ΙΙ</publisher-name>
        <publisher-name xml:lang="en">Empress Catherine II Saint Petersburg Mining University</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.31897/pmi.2019.5.570</article-id>
      <article-id custom-type="pmi" pub-id-type="custom">pmi-13238</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/13238</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Электромеханика и машиностроение</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Electromechanics and mechanical engineering</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">Scraper Face Conveyors Dynamic Load Control</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>Управление динамической нагруженностью забойных скребковых конвейеров</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Eshchin</surname>
            <given-names>E. K.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Ещин</surname>
              <given-names>Е. К.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Eshchin</surname>
              <given-names>E. K.</given-names>
            </name>
          </name-alternatives>
          <email>eke_kuzstu@mail.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru">Кузбасский государственный технический университет им. Т.Ф.Горбачева (Кемерово, Россия)</institution>
          </aff>
          <aff>
            <institution xml:lang="en">T.F.Gorbachev Kuzbass State Technical University (Kemerovo, Russia)</institution>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="2019-10-23">
        <day>23</day>
        <month>10</month>
        <year>2019</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>2019</year>
      </pub-date>
      <volume>239</volume>
      <fpage>570</fpage>
      <lpage>575</lpage>
      <history>
        <date date-type="received" iso-8601-date="2019-05-05">
          <day>05</day>
          <month>05</month>
          <year>2019</year>
        </date>
        <date date-type="accepted" iso-8601-date="2019-07-03">
          <day>03</day>
          <month>07</month>
          <year>2019</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="2019-10-23">
          <day>23</day>
          <month>10</month>
          <year>2019</year>
        </date>
      </history>
      <permissions>
        <copyright-statement>© E. K. Eshchin</copyright-statement>
        <copyright-year>2019</copyright-year>
        <copyright-holder xml:lang="ru">Е. К. Ещин</copyright-holder>
        <copyright-holder xml:lang="en">E. K. Eshchin</copyright-holder>
        <license xlink:href="http://creativecommons.org/licenses/by/4.0">
          <license-p>CC BY 4.0</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/13238">https://pmi.spmi.ru/pmi/article/view/13238</self-uri>
      <abstract xml:lang="ru">
        <p>Рассмотрена задача управления динамической нагруженностью забойных скребковых конвейеров (СК) и зафиксировано неудовлетворительное состояние нагруженности механических и электрических компонентов СК. Обозначена возможность возникновения автоколебательного характера нагруженности всей системы из-за особенностей движения тяговой цепи по рештачному ставу СК. Отмечено свойство системы – циклический характер нагружения цепи при движении, вызывающий обменные процессы энергией между механическими и электродвигательными компонентами конвейера (при использовании головного и хвостового электроприводов) через общую кабельную сеть системы электроснабжения СК. Высокий уровень динамической нагруженности электромеханической системы вызывает проблему ликвидации порождающего его автоколебательного режима работы СК, решить которую предлагается путем изменения угловых скоростей вращения приводных звездочек СК. Угловые скорости можно изменять путем применения частотного управления асинхронными электродвигателями. Установлена эффективность задания частоты токов статоров электродвигателей головного и хвостового приводов конвейера пропорционально частоте вращения их роторов для ликвидации автоколебательных режимов работы в основном эксплуатационном режиме. Рассмотрена возможность снижения пусковых ударных значений электромагнитных моментов электродвигателей. Результаты расчетов режимов пуска и ликвидации автоколебательного режима работы представлены на примере забойного скребкового конвейера Анжера-34. Сопоставлены результаты расчетов режимов пуска и основного эксплуатационного транспортирования угля в неуправляемом режиме работы и после введения управления, на основе которых сделан вывод о целесообразности использования активного управления динамической нагруженностью СК.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>The task of controlling the dynamic loading of scraper face conveyors (SC) is considered and the unsatisfactory state of loading of mechanical and electrical components of the SC is recorded. The possibility of the appearance of a self-oscillatory nature of the entire system load due to the peculiarities of the movement of the traction chain along the lattice frame of the SC is indicated. The property of the system is noted – the cyclic nature of the loading of the circuit during movement, which causes energy exchange processes between the mechanical and electromotive components of the conveyor (when using the head and tail electric drives) through the common cable network of the power supply system of the SC. A high level of dynamic loading of the electromechanical system causes the problem of eliminating the self-oscillating operating mode of the SC that generates it which is proposed to be solved by changing the angular rotation speeds of the SC drive sprockets. Angular speeds can be changed by applying frequency control of asynchronous electric motors. The efficiency of setting the frequency of electric motor stator currents of the head and tail drives of the conveyor is established in proportion to the frequency of rotors rotation to eliminate self- oscillating modes of operation in the main operating mode. The possibility of reducing the starting shock values of the electromagnetic moments of electric motors is considered. The results of the calculation of the start-up and liquidation of the self-oscillating operating mode are presented on the example of the scraper face conveyor Anzhera-34. The results of calculations of the start-up modes and the main operational transportation of coal in an uncontrolled mode of operation and after the introduction of control are compared, based on which it is concluded that it is advisable to use active control of the dynamic loading ofSC.</p>
      </abstract>
      <kwd-group xml:lang="ru">
        <title>Ключевые слова</title>
        <kwd>забойный скребковый конвейер</kwd>
        <kwd>динамическая нагруженность</kwd>
        <kwd>электропривод</kwd>
        <kwd>асинхронный электродвигатель</kwd>
        <kwd>частотное управление</kwd>
      </kwd-group>
      <kwd-group xml:lang="en">
        <title>Keywords</title>
        <kwd>scraper face conveyor</kwd>
        <kwd>dynamic loading</kwd>
        <kwd>electric drive</kwd>
        <kwd>asynchronous electric motor</kwd>
        <kwd>frequency control</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body/>
  <back>
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</article>
