公开(公告)号：US4589502A

公开(公告)日：1986-05-20

申请号：US607166

申请日：1984-05-04

申请人： Martin de G. Salter ,  John G. S. Hynd

发明人： Martin de G. Salter ,  John G. S. Hynd

IPC分类号： E21B7/00 ,  E21B11/06 ,  E21D1/06

CPC分类号： E21B7/003 ,  E21B11/06 ,  E21D1/06

摘要： An earth boring or shaft sinking apparatus in which a column is continuously rotatable about its axis, the column including a cutting wheel at one end rotatable about a wheel axis normal to the axis of the column, the cutting wheel including sprockets mounted about the wheel axis, the sprockets providing engagement for an endless bucket-carrying chain for direct conveyance of cuttings from the bottom of a hole to the top end of the column, which includes another set of sprockets for the endless bucket-carrying chain and discharges the cuttings into a feed bin. The cutting wheel is continuously rotated about the column longitudinal axis, as well as its wheel axis of rotation. In one example, a main, enlarged, cone-shaped cutting head is rotatable with the column for rotation about the column axis at a selected rate of speed, while the cutting wheel is additionally rotated about its wheel axis at a different selected speed, rotation of the cutting wheel and of the cutting head being continuous, the cutting wheel providing an advancing central bowl shaped recess adapted to serve as a lead or pilot hole to receive cuttings from the second enlarged main cutting head. Different arrangements of cutting wheels and endless bucket means are provided.

摘要翻译： 一种钻孔或轴下沉装置，其中柱能够围绕其轴线连续地旋转，所述柱包括在一端可旋转的切割轮，所述切割轮围绕垂直于所述柱的轴线的轮轴旋转，所述切割轮包括围绕所述轮轴安装的链轮 链轮提供用于直接从钻孔底部向柱顶部输送切屑的环形铲斗承载链的链接，该链条包括用于环形铲斗承载链的另一组链轮并将切屑排放到 进料仓 切割轮围绕柱纵向轴线以及其轮轴旋转持续旋转。 在一个示例中，主要的，扩大的锥形切割头可随着柱旋转，以便以选定的速度围绕柱轴旋转，同时切割轮另外围绕其轮轴以不同的选定速度转动 所述切割轮和所述切割头是连续的，所述切割轮提供前进的中央碗形凹部，所述中间碗形凹槽适于用作引导孔或引导孔，以接收来自所述第二扩大主切割头的切屑。 提供了切割轮和无端桶装置的不同布置。