Shank adapter, rock drilling machine and method
AssigneeSandvik Mining and Construction Oy
InventorsEsa LAAKKOLA, Jussi PEURALA, Timo KELA
Life of this patent
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Abstract
A shank adapter, rock drilling machine and method of mounting a shank adapter of a rock drilling machine inside a slide bearing element. The shank adapter includes a coupling head and a rotation portion at its opposite ends, and a flushing portion located therebetween. Outer diameters of the coupling head and the rotation portion are both greater than outer diameters of portions of the shank adaptor located therebetween.
Claims8
A shank adapter of a rock drilling machine comprising:
- a coupling head arranged for connecting a drilling tool;
- a rotation portion located at an opposite end portion of the shank adapter relative to the coupling head, the rotation portion including several splines for transmitting torque;
- and
- a flushing portion located between the coupling head and the rotation portion, the flushing portion including a transverse flushing opening in contact with an axial flushing portion extending to a distal end of the shank adapter at the coupling head side end, wherein outer diameters of the coupling head and the rotation portion are both greater than outer diameters of the shank adapter located between the coupling head and the rotation portion.
A method of mounting a shank adapter of a rock drilling machine inside a slide bearing element, the method comprising:
- implementing a split bearing element including at least two connectable bearing components;
- and
- connecting the shank adapter and the split bearing element together by means of transverse relative movement between the shank adapter and the bearing components.
Dependencies are inferred from the claim text.