公开(公告)号：JPS6282197A

公开(公告)日：1987-04-15

申请号：JP22391886

申请日：1986-09-24

Applicant: TAMPELLA OY AB

Inventor： BUEIYO NURUMI

IPC: E21B7/02 ,  E21B15/00 ,  E21B19/08 ,  E21B44/00

公开(公告)号：JPH0266290A

公开(公告)日：1990-03-06

申请号：JP17725889

申请日：1989-07-11

Applicant: TAMPELLA OY AB

Inventor： BUESA UITSUTOO ,  OTSUSHI TEIENARI ,  BUEIYO NURUMI

IPC: E21B19/08 ,  E21B19/084

Abstract: PURPOSE: To provide a simplified structure by providing a feeding beam movably along a frame, and providing a rock drill which is movable along the feeding beam. CONSTITUTION: A feeding beam 2 is provided in such a way as to be movable along a frame 1 via a slide piece 16 by a connecting device 13. A chain 6 is wound on sprockets 4, 5 provided respectively at the top and bottom of the beam 2 and is provided in such a way as to be drivable by means of a drive mechanism 8 comprising control wheels 9, 10 and a drive wheel 11 which are attached to the frame 1. A rock drill 3 is attached to the end of the chain 6 via a sledge 7 and is provided movable along the beam 2. Furthermore, a brake shoe 14 for applying braking to the sprocket 5 is attached to the piston arm of a connecting device 12 comprising a pressure medium cylinder.