To provide a drill driving device achieving good protection for drilling drive and an efficient drilling motion while using compaction tools in an axial direction.SOLUTION: The present invention relates to a drill driving device (10) for an underground drilling device having spindle alignment, wherein the spindle alignment has an inner spindle unit (20) and an outer spindle unit (40), and the outer spindle unit is supported on the inner spindle unit (20) in an axial displaceable state and floated between two spring means (50, 60). In accordance with the present invention, the first front side spring means (50) is arrayed in a drilling tool side and is provided with at least a combination of a compression coil spring and a first disk spring array (54), and the second rear spring means (60) faces a direction away from the drilling tool side and has a second disk spring array (64).SELECTED DRAWING: Figure 1

    【課題】軸方向打突ツール使用時におけるドリルドライブの良好な保護及び効率的なドリリング動作を実現する。【解決手段】本発明は、スピンドル配列を有する地中ドリリング装置用ドリル駆動装置(10)であり、そのスピンドル配列が内側スピンドルユニット(20)及び外側スピンドルユニット(40)を有し、その外側スピンドルユニットが軸方向変位可能形態にて内側スピンドルユニット(20)上で支持され且つ2個のバネ手段(50,60)間で浮動するものに関する。本発明によれば、第1前側バネ手段(50)がドリリングツール側に配列されていて少なくとも圧縮コイルバネ及び第1皿バネ配列(54)の組合せを備え、第2後側バネ手段(60)がドリリングツール側から離れた方を向いていて第2皿バネ配列(64)を有するものが、提供される。【選択図】図1


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    Title :

    DRILL DRIVING DEVICE FOR UNDERGROUND DRILLING DEVICE


    Additional title:

    地中ドリリング装置用ドリル駆動装置


    Contributors:

    Publication date :

    2022-06-17


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    Japanese


    Classification :

    IPC:    E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / B63B Schiffe oder sonstige Wasserfahrzeuge , SHIPS OR OTHER WATERBORNE VESSELS



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