FIELD: mining. SUBSTANCE: drilling machine has anchor prop with carriage, guide beam installed for turning in horizontal and vertical planes, and feed mechanism. Carriage with rotary head is movably installed on guide beam. Feed mechanism includes chain gear with spring accumulator installed in body, and control unit. Spring accumulator is made in form of rod connected with chain ends and spring-loaded relative to body. Control unit is made in form of single-reduction gear with sprockets installed on its one shaft. Handle is installed on any shaft. EFFECT: higher efficiency. 5 dwg
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