Sound dampening housing for rock drill
AssigneeSandvik Mining and Construction Oy
InventorsSeppo Peltola, Ari Haavisto
Life of this patent
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Abstract
The invention relates to a sound dampening housing for a rock drill which moves along a feed beam in a longitudinal direction thereof, the sound dampening housing being attachable to the feed beam of the rock drill on its both sides so that together with the feed beam the sound dampening housing constitutes a substantially closed space. The sound dampening housing is double-shelled, and an airspace is provided between its inner shell and its outer shell.
Claims25
A sound dampening housing for a rock drill which moves along a feed beam in a longitudinal direction thereof, the sound dampening housing being attachable to the feed beam of the rock drill on its both sides so that together with the feed beam the sound dampening housing constitutes a substantially closed space within which the rock drill and at least a main part of a drill rod outside a hole are located, wherein at least part of the sound dampening housing is formed from two shells, an inner shell and an outer shell, arranged one within another and attached to one another so as to form a stiff unity and a space containing air or another gas or a gaseous mixture being provided therebetween.
A sound dampening housing for a rock drill which moves along a feed beam in a longitudinal direction thereof, the sound dampening housing being attachable to the feed beam of the rock drill on its both sides so that together with the feed beam the sound dampening housing constitutes a substantially closed space within which the rock drill and at least a main part of a drill rod outside a hole are located, wherein part of the sound dampening housing includes only a single shell while another part of the sound dampening housing is formed from two shells, an inner shell and an outer shell, arranged one within another and attached to one another so as to form a stiff unity and a space containing air or another gas or a gaseous mixture being provided therebetween.
Dependencies are inferred from the claim text.