| 摘要 |
<p>A boom arrangement (202) and a drilling rig having the boom arrangement for use in a mining or construction machine (200) the boom arrangement having a first boom section (203) with a first and a second end, in which the first end is designed to be fastened to a carrier (201), and the second end is designed to carry a drilling machine (210), the boom arrangement (202) also having a first rotational linking element (205) with a first axis of rotation (B1) and a second rotational linking element (206) with a second axis of rotation (B2). The first rotational linking element (205) is arranged at the first end of said first boom section (203) and the second rotational linking element (206) is arranged at said second end of the first boom section (203) such that the axes of rotation (B1, B2) are fixed in relation to each other, and the axes of rotation (B1, B2) form angles with vertical direction of the carrier, the angles being in the interval of 0 to 45°.</p> |
