machine for roadway support in mining horizontal concrete block construction

摘要

the invention refers to a machine for horizontal support with the vaults of mining works, car rooms, rooms for machinery, and mining works, tunnels, etc.the car comprises a telescopic arm, which can be rotated in a horizontal plane in both directions, mounted on a platform cast alsotelescopic arm is mounted with possibility to be folded down in the vertical plane by means of hydraulic cylinders in steps.telescopic arm is composed of a chute in a holster, which slide chute telescopic, thanks to two chains of transoport maintained tense two hydraulic cylinders with double effecthydraulic conexati in position, to the same command, with another hydraulic cylinder.telescopic arm is fed via a chute boltari food, boltarii being move with a hydraulic cylinder power and then take a tape transportfixed to the conveyor chains. boltarii are placed in a box mounted on the upper takeover telescopic arm, where they take the workers are in a nacelle.