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    • 4. 发明授权
    • Rock drill
    • 摇滚钻
    • US06283232B1
    • 2001-09-04
    • US09528598
    • 2000-03-20
    • Rainer BatlinerSteven MoseleyEdwin SchweizerUdo Hauptmann
    • Rainer BatlinerSteven MoseleyEdwin SchweizerUdo Hauptmann
    • E21B1040
    • B23B51/02B23B2226/75B23B2251/204E21B10/445E21B10/58
    • A rock drill including a drill stem (2), major cutting edges (5, 6) extending substantially over a diameter of the drill stem (2) and projecting beyond the end face (3) of the drill stem, and at least one minor cutting edge (9, 10) extending substantially in a radial direction and provided on at least one elongate cutting body (7, 8) which projects beyond the end face (3), with the minor cutting edge (9, 10) being located, at a contemplated rotational direction (R) of the drill (1) about the drill axis (A), in front of a corresponding major cutting edge (5, 6) adjacent to a main discharge groove (13) for drilling dust, and with the elongate cutting body (7, 8) having a cutting surface (11) tapering from the minor cutting edge (9) toward the end face (3) of the drill stem (2) and having at least one inclination surface (12) adjacent to the circumference of the drill stem (2) and inclined toward the circumference of the drill stem and with respect to a radial extension of the minor cutting edge (9), in a direction opposite the drill rotational direction (R).
    • 包括钻杆(2)的凿岩机,基本上在钻杆杆(2)的直径上延伸并突出超过钻杆的端面(3)的主切削刃(5,6)以及至少一个次要 切割边缘(9,10)基本上沿径向方向延伸并且设置在突出超过端面(3)的至少一个细长切割体(7,8)上,其中副切割边缘(9,10)位于, 在相对于用于钻出粉尘的主排放槽(13)的相应的主切削刃(5,6)的前方,钻头(1)围绕钻杆轴线(A)的预期的旋转方向(R) 所述细长切割体(7,8)具有从所述副切割刃(9)朝向所述钻杆(2)的端面(3)渐缩的切割表面(11),并且具有邻近的至少一个倾斜表面(12) 到钻杆(2)的圆周并且朝着钻杆的圆周倾斜并且相对于小切削的径向延伸 沿着与钻头旋转方向(R)相反的方向的边缘(9)。