rock excavating machine supporting a rock cutting device

摘要

"Rock excavating machine supporting a rock cutting device" The rock excavating machine includes a frame, a cutting device and a boom. the cutting device includes a cutting disk having a cutting edge, and the cutting disk is rotatable about a geometric axis of the cutting device. the boom supports the cutting device and includes a first end, a second end, and a boom geometry axis substantially parallel to the cutting geometry axis. the lance further includes a first portion and a second portion. the first portion is coupled to the frame for rotation about a first pivot geometry axis between an elevated position and a lowered position. the second portion is coupled to the cutting device, and the second portion is pivotable about a second pivot axis between an elevated position and a lowered position.