公开(公告)号：JPH0317389A

公开(公告)日：1991-01-25

申请号：JP7228290

申请日：1990-03-23

Applicant: TAMPELLA OY AB

Inventor： PETSUKA SARUMI ,  YUHA PITSUPONEN ,  YUHANI RATSUPARAINEN ,  PETSUKA HAISUKANEN

IPC: E21B19/08 ,  E21B19/16 ,  E21B44/00 ,  E21B44/06

Abstract: PURPOSE: To reduce costs by connecting the pressure fluid passages of pressure cylinders to the pressure passages of pressure raising elements through the generation of pressure higher than that in a pressure fluid source. CONSTITUTION: When a hydraulic fluid is supplied via regulating valves 14, 114 to the respective pressure cylinders 8a, 8b, 108a, 108b of a retaining device 6 and a breaking device 7 which are adapted for rotating a rock drill rod about its axis, the fluid is guided by a thread breaking valve 16 to pressure raising cylinders 15, 115 via a passage 17. Pressures considerably higher than those normally produced in a hydraulic system are generated in passages 12, 112 by the pressure raising cylinders 15, 115. Even higher pressures are supplied to the pressure cylinders 8a, 8b, 108a, 108b and high clamping forces are imparted to clamping jaws 110a, 110b, etc.

公开(公告)号：JPH032492A

公开(公告)日：1991-01-08

申请号：JP7228190

申请日：1990-03-23

Applicant: TAMPELLA OY AB

Inventor： YUHA PITSUPONEN ,  PETSUKA HAISUKANEN ,  YUHANI RATSUPARAINEN ,  KARI FUAARIN ,  PETSUKA SARUMI

IPC: E21B19/14 ,  E21B19/16 ,  E21B19/20

Abstract: PURPOSE: To easily mount drill tubes and/or rods with slight inputs without drilling by positioning between the retainer of a feed beam and a rotating motor a breaking device rotatable in the cross direction of the feed beam. CONSTITUTION: A drilling machine 4 is placed on a feed beam 3 and a rotating motor 5 is mounted in front of it. Also, a retainer 6 is provided at the front end of the beam 3 and a breaking device 7 provided with pressure cylinders 12a, 12b or the like with a clamping jaw 14a or the like is positioned between the retainer 6 and the motor 5. The breaking device 7 is rotated in the cross direction of the beam 3 for insertion of a new tube 9b through an opening 15 and the pressure cylinders 12a, 12b are positioned to press the tube 8b. Further, the breaking device 7 and the beam 3 are rotated in parallel relation and the tube 8b is moved in such a way as to be fastened to an existing tube 8a and is mounted as it is screwed up by the motor 5 and the drilling machine 4.