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<article article-type="research-article" dtd-version="1.3" xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xml:lang="ru"><front><journal-meta><journal-id journal-id-type="publisher-id">blackmet</journal-id><journal-title-group><journal-title xml:lang="ru">Известия высших учебных заведений. Черная Металлургия</journal-title><trans-title-group xml:lang="en"><trans-title>Izvestiya. Ferrous Metallurgy</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">0368-0797</issn><issn pub-type="epub">2410-2091</issn><publisher><publisher-name>National University of Science and Technology "MISIS"</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.17073/0368-0797-2019-4-303-307</article-id><article-id custom-type="elpub" pub-id-type="custom">blackmet-1644</article-id><article-categories><subj-group subj-group-type="heading"><subject>Research Article</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="ru"><subject>ИННОВАЦИИ В МЕТАЛЛУРГИЧЕСКОМ ПРОМЫШЛЕННОМ И ЛАБОРАТОРНОМ ОБОРУДОВАНИИ, ТЕХНОЛОГИЯХ И МАТЕРИАЛАХ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>INNOVATIONS IN METALLURGICAL INDUSTRIAL AND LABORATORY EQUIPMENT, TECHNOLOGIES AND MATERIALS</subject></subj-group></article-categories><title-group><article-title>СИЛОВОЙ АНАЛИЗ ПРОЦЕССА РАЗРУШЕНИЯ ХРУПКИХ МАТЕРИАЛОВ В ОДНОВАЛКОВОЙ ДРОБИЛЬНОЙ МАШИНЕ С УПОРОМ НА ВАЛКЕ</article-title><trans-title-group xml:lang="en"><trans-title>POWER ANALYSIS OF THE PROCESS OF BRITTLE MATERIALS DESTRUCTION IN UNIVERSAL CRUSHING MACHINE WITH ROLL LOCKER</trans-title></trans-title-group></title-group><contrib-group><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Никитин</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Nikitin</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>д.т.н., доцент, директор института машиностроения и транспорта</p><p>654007, Кемеровская обл., г. Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Dr. Sci. (Eng.), Assist. Professor, Director of Institute of Mechanical Engineering and Transport</p><p>Novokuznetsk, Kemerovo Region</p></bio><email xlink:type="simple">nikitin1601@yandex.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Епифанцев</surname><given-names>Ю. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Epifantsev</surname><given-names>Yu. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., доцент кафедры «Механика и машиностроение»</p><p>654007, Кемеровская обл., г. Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Assist. Professor of the Chair of Mechanics and Mechanical Engineering</p><p>Novokuznetsk, Kemerovo Region</p></bio><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Медведева</surname><given-names>К. С.</given-names></name><name name-style="western" xml:lang="en"><surname>Medvedeva</surname><given-names>K. S.</given-names></name></name-alternatives><bio xml:lang="ru"><p>аспирант кафедры «Механика и машиностроение»</p><p>654007, Кемеровская обл., г. Новокузнецк, ул. Кирова, 42</p></bio><bio xml:lang="en"><p>Postgraduate of the Chair of Mechanics and Mechanical Engineering</p><p>Novokuznetsk, Kemerovo Region</p></bio><email xlink:type="simple">ksuwinchester@mail.ru</email><xref ref-type="aff" rid="aff-1"/></contrib><contrib contrib-type="author" corresp="yes"><name-alternatives><name name-style="eastern" xml:lang="ru"><surname>Герике</surname><given-names>П. Б.</given-names></name><name name-style="western" xml:lang="en"><surname>Gerike</surname><given-names>P. B.</given-names></name></name-alternatives><bio xml:lang="ru"><p>к.т.н., старший научный сотрудник лаборатории средств механизации</p><p>650099, г. Кемерово, пр-т Советский, 18</p></bio><bio xml:lang="en"><p>Cand. Sci. (Eng.), Senior Researcher of the Laboratory of Means of Mechanization</p><p>Kemerovo</p></bio><email xlink:type="simple">am_besten@mail.ru</email><xref ref-type="aff" rid="aff-2"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Сибирский государственный индустриальный университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Siberian State Industrial University</institution><country>Russian Federation</country></aff></aff-alternatives><aff-alternatives id="aff-2"><aff xml:lang="ru"><institution>Федеральный исследовательский центр угля и углехимии СО РАН</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Federal Research Center of Coal and Coal Chemistry of SB RAS</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2019</year></pub-date><pub-date pub-type="epub"><day>20</day><month>06</month><year>2019</year></pub-date><volume>62</volume><issue>4</issue><fpage>303</fpage><lpage>307</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Никитин А.Г., Епифанцев Ю.А., Медведева К.С., Герике П.Б., 2019</copyright-statement><copyright-year>2019</copyright-year><copyright-holder xml:lang="ru">Никитин А.Г., Епифанцев Ю.А., Медведева К.С., Герике П.Б.</copyright-holder><copyright-holder xml:lang="en">Nikitin A.G., Epifantsev Y.A., Medvedeva K.S., Gerike P.B.</copyright-holder><license xml:lang="ru" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>Данная работа распространяется под лицензией Creative Commons Attribution 4.0.</license-p></license><license xml:lang="en" license-type="creative-commons-attribution" xlink:href="https://creativecommons.org/licenses/by/4.0/" xlink:type="simple"><license-p>This work is licensed under a Creative Commons Attribution 4.0 License.</license-p></license></permissions><self-uri xlink:href="https://fermet.misis.ru/jour/article/view/1644">https://fermet.misis.ru/jour/article/view/1644</self-uri><abstract><p>Переработка сыпучих материалов, используемых в металлургической промышленности для получения необходимых классов крупности, требует эксплуатации дробильных машин, в том числе и одновалковых. Показателями процесса дробления являются степень и энергоемкость дробления. Степень дробления оценивается отношением размеров исходного дробимого и получаемого кусков и зависит от величины зазора между валком и неподвижной щекой. Энергоемкость дробления определяется массой дробленого материала, получаемой при расходовании единицы электроэнергии, и зависит, главным образом, от прочности дробимого материала. С целью снижения расхода энергии на дробление в Сибирском государственном индустриальном университете разработана одновалковая дробилка с принудительной подачей дробимого куска в зону разрушения за счет упора, расположенного на валке. Силы технологического сопротивления, возникающие в процессе эксплуатации машины, являются основными исходными величинами для расчета мощности привода машины и элементов конструкции на прочность, поэтому силовой анализ рабочего процесса является неотъемлемым этапом проектирования любой машины, в том числе и дробильной. В настоящей работе выявлены силы, действующие на дробимый кусок со стороны валка и неподвижной щеки в вертикальной и горизонтальной плоскостях. На основании полученных результатов определено, что на кусок дробимого материала действуют как внутренние сжимающие силы, вызывающие в куске действие нормальных сжимающих напряжений, так и внутренний крутящий момент, вызывающий действие касательных напряжений, т.е. в дробимом куске создается сложное напряженное состояние с одновременным действием нормальных и касательных напряжений, под действием которых происходит разрушение дробимого куска. Этим достигается уменьшение расхода энергии на дробление при прочих равных условиях, что уменьшает энергоемкость работы одновалковой дробилки с принудительной подачей материала в зону дробления.</p></abstract><trans-abstract xml:lang="en"><p>The processing of friable materials used in metallurgical industry for production of definite size classes requires operation of crushing machines, including single-roll machines. Parameters of crushing process are degree and efficiency of crushing. The crushing degree is estimated by the ratio of dimensions of the initial crushing and resulting pieces and depends on the size of gap between the roll and the fixed jaw. Crushing efficiency is determined by mass of material crushed by consumed electric energy unit, and depends mainly on strength of crushed material. In order to reduce energy consumption needed for crushing, a single-roll crusher was developed at Siberian State Industrial University with forced feeding of crushing piece into the fracture zone due to the locker located on the roll. Forces of technological resistance appearing during machine operation are the main initial values for machine drive power and structural elements strength testing, thus, the operation power analysis is an integral stage in the design of any machine, including a crushing one. In the present work, forces acting on a crushing piece from roll side and fixed jaw in vertical and horizontal planes are identified. Based on the results obtained, it was determined that internal compressive forces acting on piece of crushing material cause action of normal compressive stresses in a piece, as well as an internal torque eﬀect, which causes shearing stresses action, i.e. a complex stress state is generated in a fractioned piece with simultaneous action of normal and shearing stresses, under which action a fractioning piece is destroyed. Thus reduction in energy consumption for crushing is achieved, with all other conditions being equal. It reduces energy consumption of a single-roll crusher with forced feeding of material into the crushing zone.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>одновалковая дробилка</kwd><kwd>степень дробления</kwd><kwd>упор</kwd><kwd>сила</kwd><kwd>напряжение</kwd><kwd>энергоемкость</kwd></kwd-group><kwd-group xml:lang="en"><kwd>single-roll crusher</kwd><kwd>degree of crushing</kwd><kwd>locker</kwd><kwd>force</kwd><kwd>tension</kwd><kwd>energy intensity</kwd></kwd-group></article-meta></front><back><ref-list><title>References</title><ref id="cit1"><label>1</label><citation-alternatives><mixed-citation xml:lang="ru">Austin L.G., Van Orden D., McWilliams B., Perez J.W., Shoji K. Breakage parameters of some materials in smooth roll crushers // Original Research Article Powder Technology. 1981. April – May. Vol. 28. Iss. 2. P. 245 – 251.</mixed-citation><mixed-citation xml:lang="en">Austin L.G., Van Orden D., McWilliams B., Perez J.W., Shoji K. 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