Белгородский технологический институт строительных материалов им. И.А.Гришманова
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FIELD: mechanical engineering. SUBSTANCE: drilling head has housing 1. A motor is coupled with the spindle through gear pairs mounted on driving and intermediate shafts. Sprockets 19, 11 and 12 are mounted at the ends of the shafts that project out of housing 1. The sprockets are interconnected by way of an endless chain. EFFECT: expanded engineering capabilities. 3 dwg