Rock drilling apparatus and method for controlling the orientation of the feed beam

摘要

A rock drilling apparatus and method for controlling the orientation of a feed beam of a rock drilling apparatus including a carrier, a drilling boom attached at a first end to the carrier, a feed beam attached turnably to a second end of the drilling boom, a drilling unit attached movably along the feed beam, and a support attached to the feed beam for supporting the drilling boom on the ground. The orientation of the boom and feed beam are adjusted to compensate for the orientation change caused by driving the support onto the ground.

主权项

1. A rock drilling apparatus comprising:
a carrier; a drilling boom attached at a first end to the carrier; a feed beam attached turnably to a second end of the drilling boom; a drilling unit attached movably along the feed beam; a support attached to the feed beam for supporting the drilling boom on the ground; and an arrangement for controlling the orientation of the boom and feed beam, wherein the arrangement is configured, on the basis of parameters affecting the orientation, to define the orientation change caused by forces resulting from driving the support onto the ground, the apparatus being configured to automatically adjust the orientation of the boom and feed beam so that the feed beam is in a desired direction before applying drilling force to compensate for the orientation change from the desired direction caused by forces resulting from supporting the drilling boom onto the ground.