| 摘要 |
FIELD: mining.SUBSTANCE: device comprises an outer body in the form of a hollow cylinder, where there is an electric motor with a reducer, geared racks with a geared wheel and a helical pair, and is equipped with fixing units and additional electric motors with a step down reducer and a helical pair. On the upper and lower cylindrical surface of the body there are through windows, and each fixing unit is made in the form of coaxial bushings that cover the outer surface of the body above through windows of the body with the possibility of their mutual axial displacement and is equipped with a platform with fixing elements. On the outer surface of the coaxial bushings there are lever ends fixed hingedly, other ends of which are hingedly fixed on the platform. On the inner walls of support bushings there are transverse partitions, between which there is a compression spring. On one transverse partition there is an additional electric motor, the shaft of which via a helical pair is connected with another transverse partition.EFFECT: increased reliability, durability and operational safety of a device.6 dwg |
