Schneidvorrichtung

Details

Veröffentlichungs-Nr.

EP3392455

Aktenzeichen

EP17166796

Anmeldetag

18. April 2017

Veröffentlichung

27. September 2023

Erteilung

27. September 2023

Rechtsraum

EP

IPC

E21C25/18E21D9/10

Abstract

Cutting apparatus (100) suitable for creating tunnels or subterranean roadways and the like. The apparatus comprises: a support structure (800) having generally upward (300), downward (301), frontward (303) and side (302) facing regions; first and second cutting assemblies (900), each of the first and second cutting assemblies (900) including a rotatable cutting head (128) and a mounting assembly (902), the mounting assembly (902) attaching the cutting head (128) to the support structure (800) in a manner that enables the cutting head (128) to move with respect to the support structure (800), said mounting assembly (902) including a first pivot axis (400) wherein the cutting head (128) is movable about the first pivot axis (400) thereby enabling the cutting head (128) to move in a generally sideways direction relative to support structure (800), said mounting assembly (902) including a second pivot axis (401) wherein the cutting head (128) is movable about the second pivot axis (401) thereby enabling the cutting head (128) to move in a generally upwards-downwards direction relative to the support structure (800); wherein each of the cutting heads (128) includes a plurality of cutting units (700), each cutting unit (700) includes a rotatable shaft (703) having a central longitudinal axis (704) and a cutter (127) mounted on the shaft (703), said cutter (127) including a disc body (711) and a plurality of buttons (710) for abrading rock, said buttons (710) are mounted in a radially peripheral portion (738) of the disc body and protrude outwardly therefrom, wherein at least some of the buttons (710) each have a central longitudinal axis (745) that subtends an angle α with respect to a reference axis (746), which extends perpendicularly outwards from the central longitudinal axis (704) of the shaft, wherein the angle α is greater than or equal to 20° and less than or equal to 34°.

Anmelder

Firma

Sandvik Intellectual Property AB

Land

🇸🇪 Schweden

Fachgebiete