公开(公告)号：US06283231B1

公开(公告)日：2001-09-04

申请号：US08984471

申请日：1997-12-03

申请人： Gaspar Jozef Coelus

发明人： Gaspar Jozef Coelus

IPC分类号： E21B1044

CPC分类号： E02D5/56 ,  E02D5/36 ,  E02D7/22 ,  E21B10/44

摘要： Soil-displacing screw auger which contains an auger tube (1); a double displacement body (2) equipped with a hollow shaft (8) fixed to the auger tube (1) and containing an upper part (6) which constitutes a closed screw the radius of which increases towards its lower extremity and a lower part (7) which constitutes a closed screw the radius of which decreases towards its lower extremity, preferably with the same pitch as the upper part (6); a lower tube the diameter of which is smaller than twice the largest radius (R2) of the displacement body and which is situated between the lower part (7) of the displacement body (2) and the lower extremity of the auger; a screw blade (4) welded onto the outer casing of the lower tube, which rotates in the same sense as the lower part (7) of the displacement body (2) and an auger tip (5) connected to the lower extremity of the lower tube, with the special characteristic that the lower tube of the auger is an intermediate tube (3) with an outer diameter (D3) which is smaller than twice the largest radius (R2) of the displacement body (2) but larger than the outer diameter (D1) of the auger tube (1), whereas the auger tip (5) contains a displacement part (16) with a closed screw rotating in the same sense as the screw blade (4) on the intermediate tube (3) and a maximal radius equalling half the diameter (D3) of the intermediate tube (3).

摘要翻译： 含螺旋管（1）的排土螺旋钻; 配备有固定在螺旋管（1）上的空心轴（8）并包含上部（6）的双位移体（2），上部部分（6）构成其半径向其下端增加的闭合螺钉和下部（ 7），其构成封闭螺钉，其半径朝向其下端减小，优选地具有与上部（6）相同的间距; 下管的直径小于位移体的最大半径（R2）的两倍，位于位移体（2）的下部（7）和螺旋推运器的下端之间; 焊接在下管的外壳上的螺旋叶片（4），其以与移动体（2）的下部（7）相同的方式旋转，以及螺旋叶尖（5），其连接到下端 下管，其特征是螺旋钻的下管是具有小于位移体（2）的最大半径（R2）的两倍的外径（D3）的中间管（3），但大于 螺旋管（1）的外径（D1），而螺旋钻头（5）包含具有与中间管（3）上的螺旋叶片（4）相同意义上旋转的闭合螺杆的位移部分（16） 并且最大半径等于中间管（3）的直径（D3）的一半。