Mine or tunnel sector driving machine - has swivelling support bars with hydraulically extensible forwarding beams and support feed

摘要

The loader scoop for coal or rock on a machine for driving shafts is fitted in front of the chassis to swivel about an axis set horizontally and transversely. Two support bars (17) on the machine frame (6) run lengthways and swivel at the rear about a common transverse horizontal axis (18). The bars are connected at the end facing the scoop (11) to setting cylinders swivelling on the frame. The bars have lengthways-displaceable, hydraulic double-side thrust beams (23), protruding when extended into a recess in the scoop. The beams are fitted at this end with a support foot (26) for setting up on the sector floor (3). The feet determine the machine's angle of tilt.