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.