| 摘要 |
FIELD: mining.SUBSTANCE: group of inventions relates to reamers for underground passageways and to cutting blades for use in said reamers. Reamer for underground passageways comprises a support body, comprising multiple components with integral pairs of spaced apart extending sideways support blades, where between each pair of support blades is longitudinally extending recess to receive laterally passing cutting blade with every cutting blade between corresponding pair of blades, and stabiliser ring, having a round shell supported by multiple radial support stands, passing from central bushing, wherein cutting blades are engaged with support body for resistance to reverse longitudinal travel, with support pins for resistance to torsion forces and with a round shell stabilising rings for resistance to radial movement.EFFECT: technical result consists in providing resistance to torsion forces.18 cl, 6 dwg |
