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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 custom-type="pmi" pub-id-type="custom">pmi-12600</article-id>
      <article-id pub-id-type="uri">https://pmi.spmi.ru/pmi/article/view/12600</article-id>
      <article-categories>
        <subj-group subj-group-type="section-heading" xml:lang="ru">
          <subject>Технологические машины и оборудование</subject>
        </subj-group>
        <subj-group subj-group-type="section-heading" xml:lang="en">
          <subject>Manufacturing machinery and equipment</subject>
        </subj-group>
      </article-categories>
      <title-group>
        <article-title xml:lang="en">About influence of accuracy of manufacture of links on E.F. of screw coaxial mechanisms</article-title>
        <trans-title-group xml:lang="ru">
          <trans-title>О влиянии точности изготовления звеньев на К.П.Д. винтовых соосных механизмов</trans-title>
        </trans-title-group>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name name-style="eastern">
            <surname>Zinevich</surname>
            <given-names>V. D.</given-names>
          </name>
          <name-alternatives>
            <name name-style="eastern" xml:lang="ru">
              <surname>Зиневич</surname>
              <given-names>В. Д.</given-names>
            </name>
            <name name-style="western" xml:lang="en">
              <surname>Zinevich</surname>
              <given-names>V. D.</given-names>
            </name>
          </name-alternatives>
          <email>pmi@spmi.ru</email>
          <xref ref-type="aff" rid="aff1"/>
        </contrib>
        <aff-alternatives id="aff1">
          <aff>
            <institution xml:lang="ru"/>
          </aff>
          <aff>
            <institution xml:lang="en"/>
          </aff>
        </aff-alternatives>
      </contrib-group>
      <pub-date pub-type="epub" iso-8601-date="1962-08-24">
        <day>24</day>
        <month>08</month>
        <year>1962</year>
      </pub-date>
      <pub-date date-type="collection">
        <year>1962</year>
      </pub-date>
      <volume>47</volume>
      <issue>1</issue>
      <fpage>12</fpage>
      <lpage>19</lpage>
      <history>
        <date date-type="received" iso-8601-date="1961-07-09">
          <day>09</day>
          <month>07</month>
          <year>1961</year>
        </date>
        <date date-type="accepted" iso-8601-date="1961-09-04">
          <day>04</day>
          <month>09</month>
          <year>1961</year>
        </date>
        <date date-type="rev-recd" iso-8601-date="1962-08-24">
          <day>24</day>
          <month>08</month>
          <year>1962</year>
        </date>
      </history>
      <permissions>
        <copyright-statement xml:lang="ru">© 1962 В. Д. Зиневич</copyright-statement>
        <copyright-statement xml:lang="en">© 1962 V. D. Zinevich</copyright-statement>
        <copyright-year>1962</copyright-year>
        <copyright-holder xml:lang="ru">В. Д. Зиневич</copyright-holder>
        <copyright-holder xml:lang="en">V. D. Zinevich</copyright-holder>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="ru">
          <license-p>Эта статья доступна по лицензии Creative Commons Attribution 4.0 International (CC BY 4.0)</license-p>
        </license>
        <license license-type="open-access" xlink:href="http://creativecommons.org/licenses/by/4.0" xml:lang="en">
          <license-p>This article is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0)</license-p>
        </license>
      </permissions>
      <self-uri xlink:type="simple" xlink:href="https://pmi.spmi.ru/pmi/article/view/12600">https://pmi.spmi.ru/pmi/article/view/12600</self-uri>
      <abstract xml:lang="ru">
        <p>Трехзвенные винтовые механизмы, преобразующие поступательное движение во вращательное, широко распространены благодаря компакт­ности конструкции. Они используются в пневматических бурильных мо­лотках и перфораторах, ежегодное производство которых для горноруд­ной и строительной промышленности только нашей страны насчитывает сотни тысяч единиц. Развитие народного хозяйства выдвигает задачи увеличения произво­дительности этого оборудования и повышения коэффициента полезного действия механизмов перфораторов.</p>
      </abstract>
      <abstract xml:lang="en">
        <p>Three-link screw mechanisms converting translational motion into rotational motion are widespread due to their compact design. They are used in pneumatic drilling hammers and perforators, the annual production of which for mining and construction industry only in our country counts' hundreds of thousands of units. Development of the national economy puts forward the tasks of increasing the productivity of this equipment and increasing the efficiency of mechanisms perforators.</p>
      </abstract>
    </article-meta>
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