发明名称 |
BY-PASS FLUID PASSAGEWAY FOR DRILL TOOL |
摘要 |
A rotary drill tool for cutting rock comprising a set of journal legs that rotatably mount rotating cone shaped cutters via respective bearing assemblies (204, 205, 206). A fluid supply passageway (501) extends through the journal legs to provide a cooling and cleaning fluid to the bearings in use. A by-pass passageway (900) extends through a base region of a spindle (200) that mounts each cone cutter and is provided in direct fluid communication with the supply passageway to divert the fluid to a base region of the bearing assembly. |
申请公布号 |
WO2016030311(A1) |
申请公布日期 |
2016.03.03 |
申请号 |
WO2015EP69317 |
申请日期 |
2015.08.24 |
申请人 |
SANDVIK INTELLECTUAL PROPERTY AB |
发明人 |
FINNMAN, KARL-OSKAR |
分类号 |
E21B10/24;E21B10/16;E21B10/18;E21B10/22;E21B10/23;E21B10/25 |
主分类号 |
E21B10/24 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|