Segment erector for support lining in mine - is fitted inside pressure chamber or shield driving machine and comprises Jack and rotary runner moving along rails

摘要

The segment erector for the support lining in a mine is used in conjunction with a shield driving machine. An erecting jack (7) is located in the pressure chamber of the shield and a rotary ring runner (10) together with a segment grab (15) is moved towards the working face along guide rails (8). The runner (10) can tilt and swivel about transverse axes, and to adjust the angle there are several independent hydraulic control rams (38). ADVANTAGE - Can operate in curved areas and even when the erector is not exactly opposite the lining segment.