Patent ID: 9068453
Filing Date: 2015-06-30
Classification: E21C,E21D

Abstract:
1. A mobile mining machine for driving tunnels, roadways or shafts in hard rock, comprising: a movable machine base frame having a boom device, a swinging device for swinging the boom device about a swing axis in relation to the machine base frame, and with a tilting device for tilting the boom device; at least one tool drum coupled to the boom device for rotation about a drum axis; a plurality of rotatable tool carriers arranged on a circumference of the tool drum; a rotary drive for the tool drum; wherein the boom device has a supporting arm, on which the tool drum is mounted, and a separate swinging base, which is swingable in relation to the machine base frame by the swinging device, and wherein the supporting arm and the swinging base are connected to one another by a system of guide bars, by way of which the setting angle of the drum axis in relation to the swing axis is adjustable; the system of guide bars forming a trapezoidal four-bar linkage, with a first guide-bar bracket on a supporting arm side and a second guide-bar bracket on a swinging base side, which are connected by way of guide-bar arms.