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    • 111. 发明专利
    • Method and apparatus for drilling
    • 钻孔方法和装置
    • JP2003019710A
    • 2003-01-21
    • JP2001207403
    • 2001-07-09
    • Concrete Kooring KkKajima Road Co Ltdコンクリートコーリング株式会社鹿島道路株式会社
    • NISHIO AKIRA
    • B28D1/14
    • PROBLEM TO BE SOLVED: To increase effects for cooling and dust removing with a simple mechanical structure.
      SOLUTION: For a drilling method, a cup-like core bit 17 is used and a surface G is drilled while a tip part is pushed on the surface G to be drilled with being rotated. The core bit 17 is rotatively supported on a rotary shaft 16 of a drilling machine 2. A dust collection passage communicating with the inside of the core bit 17 is provided in the rotary shaft 16. A swivel joint 18 is provided on an outer periphery to an upper side of the rotary shaft 16, and a dust collector 3 is connected to the dust collection passage via the swivel joint 18. Dust generated following rotation of the core bit 17 is sucked inside the core bit 17 by vacuum suction with the dust collector 3 and collected inside the dust collector 3 via the dust collection passage, the swivel joint 18 and a hose 8.
      COPYRIGHT: (C)2003,JPO
    • 要解决的问题:通过简单的机械结构增加冷却和除尘效果。 解决方案:对于钻孔方法,使用杯形芯钻头17,并且在尖端部分被推动在被旋转的钻孔表面G上时钻出表面G. 芯钻头17可旋转地支撑在钻床2的旋转轴16上。在旋转轴16中设置有与芯钻头17内部连通的集尘通道。旋转接头18设置在外周面 旋转轴16的上侧,集尘器3经由旋转接头18与集尘通路连接。在芯钻头17的旋转之后产生的尘埃通过真空吸附在集尘器17的内部被吸尘 并通过灰尘收集通道,旋转接头18和软管8收集在集尘器3的内部。