公开(公告)号：US20240044359A1

公开(公告)日：2024-02-08

申请号：US18039594

申请日：2021-11-26

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Juha PIIPPONEN ,  Pekka ANTTONEN ,  Jussi MAKSIMAINEN ,  Sirpa LAUNIS ,  Juho JARKKALA ,  Risto KALLINEN ,  Stephen CONNELLY ,  Kimmo ERONEN

IPC: F16C11/04 ,  E21C35/00 ,  F16H19/08

CPC classification number: F16C11/04 ,  E21C35/00 ,  F16H19/08 ,  E21B7/025

Abstract: A rotation apparatus for a boom of a mining vehicle includes a rotation device having an axial central axis. The rotation device has a housing and an inner manifold having a tube-like structure with a space within, wherein the inner manifold is arranged concentrically inside the housing. The housing is arranged to rotate around the axial central axis and the housing includes a housing channel. The inner manifold has a fluid channel having a fluid inlet for receiving fluid from the boom, and the fluid channel is connected to the housing channel for forming a fluid conduit through the rotation device.

公开(公告)号：US20170114594A1

公开(公告)日：2017-04-27

申请号：US15299790

申请日：2016-10-21

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Pekka ANTTONEN ,  Jussi PUURA ,  Samuli VERHO

IPC: E21B7/02 ,  F15B11/17 ,  F15B13/06 ,  E21B6/00

CPC classification number: E21B7/022 ,  E21B6/00 ,  E21B6/04 ,  E21B7/025 ,  E21B19/086 ,  F15B11/17 ,  F15B13/06 ,  F15B2211/20576 ,  F15B2211/30525

Abstract: A rock drilling rig includes a drilling unit that is provided with hydraulically operated actuators, such as an impact device, a rotation device and a feed device. The impact device and the rotation device are connected to dedicated hydraulic circuits provided with dedicated supply and discharge lines and are controlled by means of dedicated control valves being on the a carrier of the rock drilling rig. The feed device is connected to a distributed hydraulic system, wherein several actuators are connected to a common hydraulic circuit (CHC) provided with one common supply line and one common discharge line and are controlled by several distributed valves. The distributed valve of the feed device is located at the drilling unit.

公开(公告)号：US20240209701A1

公开(公告)日：2024-06-27

申请号：US18288292

申请日：2022-04-21

Applicant: SANDVIK MINING AND CONSTRUCTION OY

Inventor： Pekka ANTTONEN ,  Timo SETALA ,  Tuomo KIVELA ,  Sirpa LAUNIS

IPC: E21B21/08 ,  E21B21/16 ,  E21B45/00

CPC classification number: E21B21/08 ,  E21B21/16 ,  E21B45/00

Abstract: An apparatus, method and computer program product for controlling flushing in rock drilling, and a rock drilling rig. The apparatus includes a control unit and a computer program for controlling feeding of a liquid component in an air mist flushing system in response to detected penetration rate of executed drilling. An operator may set a desired moisture target value for drilling cuttings removed from a drill hole and the control system automatically adjusts the flushing system to control the feeding of the liquid component.