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US 2015/0176345 A1Published application
Drilling tool support and method of collaring
AssigneeSandvik Mining and Construction Oy
InventorJouni KOSKINEN
Life of this patent
Estimating the term…
Abstract
A support includes a support element for supporting a drilling tool used in rock drilling. The support element is inside a suction housing of a rock drilling unit at least during drilling. The support is located at a front end portion of a feed beam and is used to support the tool especially during the collaring phase of the drilling. A method of collaring is disclosed wherein the drilling tool is supported by the support.
Claims18
A support for supporting a drilling tool, the support comprising:
- at least one support element having a support position and an idle position;
- at least one contact surface in the support element, the contact surface is being movable adjacent the tool when the support element is in the support position;
- and
- at least one actuator for generating a transfer movement for moving the support element between the support position and the idle position, wherein the support element of the support is located inside a suction housing of a dust removal system at least during drilling, the support element is being surrounded by inner surfaces of the suction housing.
1 more element
A rock drilling unit, comprising:
- a feed beam assembly;
- a rock drilling machine supported on the feed beam assembly and including at least a rotation device for rotating a drilling tool connectable to the rock drilling machine;
- a feed device for moving the rock drilling machine in a drilling direction and in a return direction;
- a suction housing located at a distal end portion of the feed beam assembly, the suction housing including a first opening and a second opening through which the drilling tool is arranged, the first opening facing the rock drilling machine and the second opening facing a surface being drilled, and at least one discharge port for connecting the suction housing to a dust removal system;
- a support located at a distal end portion of the feed beam assembly for supporting the drilling tool, the support including at least one support element having a support position and an idle position , at least one contact surface in the support element, the contact surface being movable adjacent the tool when the support element is in the support position, and at least one actuator for generating a transfer movement for moving the support element between the support position and the idle position, wherein the support element of the support is located inside the suction housing of a dust removal system at least during drilling, the support element being surrounded by inner surfaces of the suction housing;
- and
- at least one contact element located at an outermost end of the feed beam assembly positioning the rock drilling unit being supported against a surface being drilled, the support being located between the contact element of the feed beam assembly and the first opening of the suction housing.
4 more elements
A method of collaring, comprising
- drilling a drill hole by a rock drilling unit;
- supporting a drilling tool connected to a rock drilling machine of the rock drilling unit by at least one support;
- and
- removing produced drilling dust and chips by at least one suction housing inside which a suction is formed;
- surrounding the support at least partly by the suction housing at least during the collaring;
- and
- generating a relative movement between the support and the suction housing relative to each other for moving the support to a support position for supporting the drilling tool and to an idle position.
4 more elements
Dependencies are inferred from the claim text.