Device for the controlled ausschrämung curved wall surfaces, in particular of tunnel walls

摘要

The machinery has a machine support assembly (12), equipped with a main pivot joint (4), and with its longitudinal axis parallel to the longitudinal axis of the tunnel being cut out. A swivel arm (5) is articulated on the main pivot joint and is pivot-mounted by means of first working cylinder (6) which at the bottom is connected to a pivot point (12.1) on the support (12.4), and at the top is connected by its piston rod to a support pin (5.1) on the swivel arm.