DRILLING ARRANGEMENT AND METHOD PERTAINING TO THE DRILLING ARRANGEMENT

Title:

DRILLING ARRANGEMENT AND METHOD PERTAINING TO THE DRILLING ARRANGEMENT

Document Type and Number:

WIPO Patent Application WO/2014/133439

Kind Code:

A3

Abstract:

The invention relates to a method pertaining to a drilling arrangement (7) comprising a drive member support device (49) for fixing a drive member (13) arranged at the drilling arrangement (7), wherein the drive member (13) operates in a direction (R), the method comprising: - providing a drive head (19) with an axis of rotation (22) adapted for engagement with a drill string means (59), wherein the drive head (19) is arranged to cooperate with a feed member (14; 15) operating in respectively a first (P) and a second (Ρ') direction; - providing the drive head (19) pivotable relative to the drive member support device (49) and the feed member (14; 15) about an axis of rotation (A) extending transverse said direction (R); - pivoting the drive head from a first fixed end position (VI; 26) where the axis of rotation (22) of the drive head is parallel to said direction (R) and the feed member (14; 15) drives the drive head (19) in the first direction (P), to a second fixed end position (V2; 28) where the axis of rotation (22) of the drive head is parallel to said direction (R) and the feed member (14; 15) drives the drive head (19) in the second direction (Ρ'), where the directions (P) and (Ρ') are opposite. The invention also relates to a drilling arrangement and a computer program product comprising program code for an electronic control unit associated with the drilling arrangement for performing the method.

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Inventors:

KÄMPE ULF (SE)
JORMVIK FREDRIK (SE)

Application Number:

PCT/SE2014/050230

Publication Date:

January 15, 2015

Filing Date:

February 25, 2014

Export Citation:

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Assignee:

ATLAS COPCO ROCK DRILLS AB (SE)

International Classes:

E21B7/02

Foreign References:

US3220494A	1965-11-30
US3857451A	1974-12-31
US3490546A	1970-01-20

Attorney, Agent or Firm:

ZACCO SWEDEN AB (Stockholm, SE)

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