公开(公告)号：US3727867A

公开(公告)日：1973-04-17

申请号：US3727867D

申请日：1971-06-28

Applicant: TAMPELLA OY AB

Inventor： TOPPILA I

IPC: E21B7/02 ,  E21B15/04 ,  E21C11/00

CPC classification number: E21B7/025

Abstract: The present invention concerns a device for turning the feed device of a rock drill with references to the guiding jib around a transversal, fixed, horizontal shaft by the aid of a power cylinder. The invention is characterized in that the feed device has been connected to a turning shaft running parallel to the said fixed shaft and journalled in a turning head turnably carried on the fixed shaft, which shafts have been connected with each other, most appropriately with the aid of gears, and that a power cylinder has been connected between the guiding jib and the turning head.

Abstract translation: 本发明涉及一种用于通过动力油缸来帮助围绕横向的，固定的，水平轴转动引导臂的凿岩机进给装置的装置。 本发明的特征在于，进给装置已经连接到平行于所述固定轴的转动轴并且轴颈安装在可转动地固定在固定轴上的转动头上，这些轴已经相互连接，最适合于辅助 的齿轮，并且动力缸已经连接在引导臂和转向头之间。