Heading machine with cusp cutter
AssigneeSandvik Mining and Construction Oy
InventorsRalf Grief, Stefan Hasler, Karl Irregger, Stefan Steiner, Gerhard Weinberger
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Abstract
A heading machine includes first and second rotating cutting heads each having an axis of rotation extending substantially in a longitudinal direction of the machine, a first cutting roller having an axis of rotation extending substantially horizontal and transverse to the longitudinal direction of the machine, and a further cutting device supported on the cutting frame and arranged to cut off the cusps of unmined material left on side wall. The machine further includes a side stabilizer, and can cut a rectangular profile without leaving cusps left on the side wall.
Claims17
A heading machine comprising:
- a travelling mechanism and a cutting frame, wherein the cutting frame carries first and second rotating cutting heads having respectively an axis of rotation extending substantially in a longitudinal direction of the machine, the first and second rotating cutting heads being arranged such that circular areas of respective cutting profiles overlap one another;
- a first cutting roller supported on the cutting frame and arranged behind the cutting heads, the first cutting roller having an axis of rotation extending substantially horizontal and transverse to the longitudinal direction of the machine, said axis being spaced apart from the axis of rotation of the cutting heads;
- and
- a cutting device supported on the cutting frame and arranged to cut off a cusp of unmined material left on a side wall, wherein the first cutting roller includes end portions that are extendible outwards, and wherein the first cutting roller and the cutting device are positioned at a same side in relation to the axis of rotation of the cutting heads.
Dependencies are inferred from the claim text.