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    • 10. 发明公开
    • 착암 드릴링 장치 및 이의 암형 및 수형 부품
    • 作为女性和男性部件的钻石设备
    • KR1020100016141A
    • 2010-02-12
    • KR1020097022902
    • 2008-05-28
    • 산드빅 인터렉츄얼 프로퍼티 에이비
    • 나바페테르
    • E21B17/042
    • E21B17/0426F16L15/06
    • The invention relates to a threaded joint for rock-drilling equipment of the type that includes female and male parts that are interconnected via threaded joints. The invention is particularly advantageous in connection with female parts (1) of the type that includes an internal trapezoidal thread in the form of a helix thread ridge, which is delimited by a top and two flanks (12a, 12b), a groove (13), having a bottom (14), running between two tops, and which thread ridge extends a plurality of turns between a front end and a rear end, the thread top touching an imaginary cylinder or cone that is concentric with a centre axis of the female part. According to the invention, the bottom (14) of the thread groove has a concave and partially circular cross-section shape along at least a part of the extension of the groove, and transforms into flanks via concave radius transitions (22), the radii (r2) of which decrease in the direction from the front end of the thread toward the rear one, at the same time as the radius (r1) of the groove bottom (14) increases in the same direction.
    • 本发明涉及一种用于这种类型的钻石设备的螺纹接头,其包括通过螺纹接头互连的阴部件和阳部件。 本发明特别有利于包括螺旋螺纹形式的内部梯形螺纹的类型的凹形部分(1),其由顶部和两个侧面(12a,12b),凹槽(13) ),具有在两个顶部之间延伸的底部(14),并且所述螺纹脊在前端和后端之间延伸多个匝,所述螺纹顶部接触与所述螺纹的中心轴同心的假想圆柱体或锥体 女性部分。 根据本发明,螺纹凹槽的底部(14)沿着凹槽的延伸部分的至少一部分具有凹形和部分圆形的横截面形状,并且经由凹入半径转变(22)变换成侧面,半径 (14)的半径(r1)向同一方向上升的同时,从螺纹的前端向后方向的方向(r2)减小。