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    • 1. 发明申请
    • MULTI-SHAFT EXCAVATING DEVICE
    • 多轴挖掘装置
    • WO1995016079A1
    • 1995-06-15
    • PCT/JP1993001797
    • 1993-12-10
    • CHEMICAL GROUTING COMPANY LTD.SHIBASAKI, MitsuhiroKOTAKI, Hiroshi
    • CHEMICAL GROUTING COMPANY LTD.
    • E02D05/18
    • E21B17/22E02D5/18E02D17/13E21B7/001
    • A reliable multi-shaft excavating device for forming a linear continuous wall unit comprises three mixing shafts (5A, 5B, 5C) for use in forming in the ground a continuous wall, and a housing (11) for maintaining intervals between said mixing shafts (5A, 5B, 5C) provided therein with first transfer means (14) rotated by the middle mixing shaft (5B), second transfer means (15) in engagement with said first transfer means (14), third transfer means (18) that is integral with said first transfer means (14), fourth transfer means (21) in mesh engagement with said third transfer means (18) and secured to a rotating shaft (19) perpendicular to a straight line connecting the centers of said mixing shafts, and sideward expanded cone-shape cutters (22) securely provided on the ends of said rotating shaft (19). According to the present invention, all the triangular projecting portions that have been left uncut are cut by cutters, and it is possible to form in the ground a continuous wall unit having semi-circular ends and linear sides. Here, since the above mentioned cutters are in a cone shape such as a frustoconical shape, even if the distances between the mixing shafts are long, most of the triangular projecting portions (portions that have not been excavated) can be excavated, and portions left uncut disintegrate naturally by their self weights, vibrations, and others. In other words, according to the present invention, it is possible to make longer portions between the mixing shafts. In addition, it is possible to reduce time and labor to be spent for forming a continuous wall unit by making longer portions between the mixing shafts.
    • 用于形成线性连续壁单元的可靠的多轴挖掘装置包括用于在地面上形成连续壁的三个混合轴(5A,5B,5C)和用于保持所述混合轴之间的间隔的壳体(11) 在其中设置有由中间混合轴(5B)旋转的第一传送装置(14),与所述第一传送装置(14)接合的第二传送装置(15),第三传送装置 与所述第一传送装置(14)成一体,第四传送装置(21)与所述第三传送装置(18)啮合并固定到垂直于连接所述混合轴的中心的直线的旋转轴(19),以及 侧面扩大的锥形切割器(22)牢固地设置在所述旋转轴(19)的端部上。 根据本发明,所有未切割的三角形突出部分被切割机切割,并且可以在地面上形成具有半圆形端部和直线侧面的连续壁单元。 这里,由于上述刀具为截头圆锥形状的圆锥形状,即使混合轴之间的距离较长,也可以挖出大部分三角形突出部(未被挖掘的部分),剩下的部分 自己的重量,振动和其他物质自然崩解。 换句话说,根据本发明,可以在混合轴之间形成更长的部分。 此外,通过在混合轴之间形成更长的部分,可以减少用于形成连续壁单元的时间和人力。