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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">ipolytech</journal-id><journal-title-group><journal-title xml:lang="ru">iPolytech Journal</journal-title><trans-title-group xml:lang="en"><trans-title>iPolytech Journal</trans-title></trans-title-group></journal-title-group><issn pub-type="ppub">2782-4004</issn><issn pub-type="epub">2782-6341</issn><publisher><publisher-name>Irkutsk National Research Technical University</publisher-name></publisher></journal-meta><article-meta><article-id pub-id-type="doi">10.21285/1814-3520-2023-1-48-60</article-id><article-id custom-type="elpub" pub-id-type="custom">ipolytech-677</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>МАШИНОСТРОЕНИЕ</subject></subj-group><subj-group subj-group-type="section-heading" xml:lang="en"><subject>MECHANICAL ENGINEERING</subject></subj-group></article-categories><title-group><article-title>Исследование напряжений и деформаций зубьев ковшей землеройных машин</article-title><trans-title-group xml:lang="en"><trans-title>Studies of stress and strain in bucket teeth of earth-moving machines</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>Осипов</surname><given-names>А. Г.</given-names></name><name name-style="western" xml:lang="en"><surname>Osipov</surname><given-names>A. G.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Осипов Артур Геннадьевич, к.т.н., доцент, доцент кафедры конструирования и стандартизации в машиностроении</p><p>664074, г. Иркутск, ул. Лермонтова, 83, Россия</p></bio><bio xml:lang="en"><p>Artur G. Osipov, Cand. Sci. (Eng.), Associate Professor, Associate Professor of the Department of Design and Standardization in Mechanical Engineering</p><p>83 Lermontov St., Irkutsk 664074, Russian Federation</p></bio><email xlink:type="simple">arthur.osipov@rambler.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>Васечкин</surname><given-names>У. А.</given-names></name><name name-style="western" xml:lang="en"><surname>Vasechkin</surname><given-names>U. A.</given-names></name></name-alternatives><bio xml:lang="ru"><p>Васечкин Ульян Александрович, студент</p><p>664074, г. Иркутск, ул. Лермонтова, 83, Россия</p></bio><bio xml:lang="en"><p>Ulyan A. Vasechkin, Student</p><p>83 Lermontov St., Irkutsk 664074, Russian Federation</p></bio><email xlink:type="simple">ulyan.vase4kin@ya.ru</email><xref ref-type="aff" rid="aff-1"/></contrib></contrib-group><aff-alternatives id="aff-1"><aff xml:lang="ru"><institution>Иркутский национальный исследовательский технический университет</institution><country>Россия</country></aff><aff xml:lang="en"><institution>Irkutsk National Research Technical University</institution><country>Russian Federation</country></aff></aff-alternatives><pub-date pub-type="collection"><year>2023</year></pub-date><pub-date pub-type="epub"><day>07</day><month>04</month><year>2023</year></pub-date><volume>27</volume><issue>1</issue><fpage>48</fpage><lpage>60</lpage><permissions><copyright-statement>Copyright &amp;#x00A9; Осипов А.Г., Васечкин У.А., 2023</copyright-statement><copyright-year>2023</copyright-year><copyright-holder xml:lang="ru">Осипов А.Г., Васечкин У.А.</copyright-holder><copyright-holder xml:lang="en">Osipov A.G., Vasechkin U.A.</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://ipolytech.elpub.ru/jour/article/view/677">https://ipolytech.elpub.ru/jour/article/view/677</self-uri><abstract><p>Целью представленной работы является анализ существующих конструкций зубьев ковшей землеройных машин и научно обоснованный выбор оптимальной конструкции. Объектом исследований явились 6 моделей конструкций зубьев землеройных машин, выполненных из легированной марганцевой стали марки 110Г13Л. Построение моделей зубьев осуществлялось с помощью компьютерной программы КОМПАС-3D. Расчет продольных упругих внутренних напряжений и определение упругих деформаций в моделях зубьев проводился с использованием программного продукта COMSOL Multiphysics. Рассчитаны продольные упругие внутренние напряжения и определены упругие деформации моделей зубьев при приложенной к ним нагрузке на мягких грунтах 9 кН, а на скальных – 90 кН. Установлены оптимальные конструкции зубьев для грунтов различной категории твердости. На основании полученных результатов исследований выявлено, что на мягких грунтах оптимальным сочетанием эффективности и прочности обладает зуб-рыхлитель, а также комбинированный криволинейный зуб с дополнительным зубом-рыхлителем. Показано, что если принять упругую деформацию стандартного зуба на мягких породах за 100%, то деформация зуба-рыхлителя, в зависимости от исходного состояния, составляет 30–35%, а комбинированного криволинейного зуба с дополнительным зубом-рыхлителем – 32–35%. Установлено, что на твердых грунтах наилучшим сочетанием эффективности и прочности обладает комбинированный криволинейный зуб с дополнительным зубом-рыхлителем, а также обычный криволинейный зуб. Так, если принять упругую деформацию стандартного зуба на твердых породах за 100%, то деформация комбинированного криволинейного зуба с дополнительным зубом-рыхлителем в зависимости от исходного состояния составляет 18–20%, а криволинейного зуба – 42–45%. Научно обоснована целесообразность применения на землеройных машинах ковшей с комбинированными зубьями оптимальной конструкции. В дальнейшем планируется исследовать различные конструкции ковшей землеройных машин и определить оптимальную, позволяющую целесообразно применять ее на грунтах разной категории твердости.</p></abstract><trans-abstract xml:lang="en"><p>This paper aims to analyze the existing designs of bucket teeth in earth-moving machines with the purpose of selecting an optimal design in a scientifically grounded manner. The research objects included six design models of teeth of earth-moving machines made of alloyed manganese steel 110G13L. Teeth models were built using the KOMPAS-3D software. Lateral elastic internal stresses and elastic strains in the teeth models were determined using the COMSOL Multiphysics software. Lateral elastic internal stresses and elastic strains were calculated for the applied load of 9 kN in soft soil and 90 kN in rocky soil. Optimal teeth designs were determined for soils of various hardness. In soft soils, a ripper tooth and a combined curved tooth with an extra ripper tooth showed the optimum combination of efficiency and strength. Thus, provided that the elastic strain of a standard tooth in soft soils equals 100% and depending on the initial state, a ripper tooth and a combined curved tooth with an extra ripper tooth showed the strain values of 30–50% and 32–35%, respectively. In hard soils, a combined curved tooth with an extra ripper tooth and a regular curved tooth showed the optimum combination of efficiency and strength. Thus, provided that the elastic strain of a standard tooth in hard soil equals 100% and depending on the initial state, a combined curved tooth with an extra ripper tooth and a curved tooth showed the strain values of 18–20% and 42–45%, respectively. The feasibility of using buckets with combined teeth of optimal design in earth-moving machines was scientifically substantiated. Future research will investigate various bucket designs of earth-moving machines to find their optimal modifications for soils of various hardness.</p></trans-abstract><kwd-group xml:lang="ru"><kwd>землеройные машины</kwd><kwd>рабочие органы с ковшами</kwd><kwd>зубья ковшей</kwd><kwd>зуб оптимальной конструкции</kwd><kwd>напряжения и деформации</kwd></kwd-group><kwd-group xml:lang="en"><kwd>earth-moving machines</kwd><kwd>working bodies with buckets</kwd><kwd>bucket teeth</kwd><kwd>optimal design tooth</kwd><kwd>stresses and deformations</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">Потехин В.М. Землеройная машина, виды и типы // СМИ «Вторая индустриализация России» [Электронный ресурс]. URL: https://xn--80aaafltebbc3auk2aepkhr3ewjpa.xn--p1ai/zemleroynaya-mashina-vidyi-i-tipyi/ (02.05.2022).</mixed-citation><mixed-citation xml:lang="en">Potekhin V.M. 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(In Russ.).</mixed-citation></citation-alternatives></ref></ref-list><fn-group><fn fn-type="conflict"><p>The authors declare that there are no conflicts of interest present.</p></fn></fn-group></back></article>
