公开(公告)号：JPS5976392A

公开(公告)日：1984-05-01

申请号：JP17653783

申请日：1983-09-26

Applicant: Tampella Oy Ab

Inventor： PETSUKA SARUMI ,  HANNU PAASONEN

IPC: E21B6/02 ,  B23B45/16 ,  E21B1/30 ,  E21B6/00

CPC classification number: E21B6/00 ,  Y10T74/19888

公开(公告)号：JPS5841189A

公开(公告)日：1983-03-10

申请号：JP9411982

申请日：1982-06-03

Applicant: TAMPELLA OY AB

Inventor： HANNU PAASONEN

IPC: E21C37/04 ,  E04G23/08 ,  E21C37/10

公开(公告)号：IT1132125B

公开(公告)日：1986-06-25

申请号：IT2300480

申请日：1980-06-24

Applicant: TAMPELLA OY AB

Inventor： ESA KARRU ,  PEKKA SALMI ,  HANNU PAASONEN ,  AIMO HELIN

IPC: E21B3/00 ,  B25D9/12 ,  E21B1/00 ,  E21B1/26 ,  E21B6/00 ,  E21B6/04 ,  E21B44/02 ,  E21C

Abstract: A hydraulic drilling apparatus, especially a rock drill comprising a body, a cylinder in the body and a percussion piston reciprocating in the cylinder. A tool is connected to the body and a motor is provided for rotating the tool. A control valve is also provided for the percussion power. A control valve is also provided for regulating the motor speed. Both of these control valves are operated independently by one lever. A hydraulically operated flushing valve is also provided. A hydraulic pump and hydraulic channels coact to form a percussion circuit and a rotation circuit is parallelly coupled with the percussion circuit in relation to the hydraulic pump. A flushing valve circuit is controlled by the percussion circuit and a circuit for the free circulation of the hydraulic pump which is parallelly coupled with the percussion circuit in relation to the hydraulic pump. The circuits are connected to the hydraulic pump. The control valves are disposed in the body of the percussion apparatus with one of these valves being in the rotation circuit for controlling the flow rate which valve is a pressure-compensated flow control valve with a throttling control.

公开(公告)号：IT8022978D0

公开(公告)日：1980-06-24

申请号：IT2297880

申请日：1980-06-24

Applicant: TAMPELLA OY AB

Inventor： ESA KARRU ,  PEKKA SALMI ,  HANNU PAASONEN

IPC: B25D9/04 ,  B25D9/12 ,  B25D9/14 ,  B30B5/00 ,  B30B15/18 ,  E21B1/26 ,  B25D

公开(公告)号：IT1138496B

公开(公告)日：1986-09-17

申请号：IT2362281

申请日：1981-08-24

Applicant: TAMPELLA OY AB

Inventor： HANNU PAASONEN ,  PEKKA SALMI ,  JARMO HEINONEN

IPC: E21B19/24 ,  F16C29/10 ,  E21C

Abstract: A drill steel centralizer comprising a body having an immovable jaw positioned in stationary relation to the body. A movable jaw and drill steel guide between said jaws that can be opened and closed by means of the movement of the movable jaw. A locking device providing means by which the movable jaw can cause the drill steel guide to be locked and released into the closed and open positions. Thus, the locking device is held in its locked position by an elastic member that is arranged to transmit a force attempting to open the jaw past the elastic member directly to the body.

公开(公告)号：BR8003998A

公开(公告)日：1981-01-21

申请号：BR8003998

申请日：1980-06-26

Applicant: TAMPELLA OY AB

Inventor： HANNU PAASONEN ,  AIMO HELIN ,  ESA KARRU ,  PEKKA SALMI

IPC: E21B3/00 ,  B25D9/12 ,  E21B1/00 ,  E21B1/26 ,  E21B6/00 ,  E21B6/04 ,  E21B44/02 ,  E21C1/12

Abstract: A hydraulic drilling apparatus, especially a rock drill comprising a body, a cylinder in the body and a percussion piston reciprocating in the cylinder. A tool is connected to the body and a motor is provided for rotating the tool. A control valve is also provided for the percussion power. A control valve is also provided for regulating the motor speed. Both of these control valves are operated independently by one lever. A hydraulically operated flushing valve is also provided. A hydraulic pump and hydraulic channels coact to form a percussion circuit and a rotation circuit is parallelly coupled with the percussion circuit in relation to the hydraulic pump. A flushing valve circuit is controlled by the percussion circuit and a circuit for the free circulation of the hydraulic pump which is parallelly coupled with the percussion circuit in relation to the hydraulic pump. The circuits are connected to the hydraulic pump. The control valves are disposed in the body of the percussion apparatus with one of these valves being in the rotation circuit for controlling the flow rate which valve is a pressure-compensated flow control valve with a throttling control.