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    • 10. 发明专利
    • Bucket for diameter-enlarging excavation
    • 用于直径放大钻孔的钻孔
    • JP2008008085A
    • 2008-01-17
    • JP2006181343
    • 2006-06-30
    • Takenaka Komuten Co Ltd株式会社竹中工務店
    • HIRAI YOSHIOITO MITSUOFUJII TAKUMIHOSHINO HARUONAKAJIMA MASATOTOYODA KOICHIMATSUMOTO TASUKUNISHIKORI YOSUKE
    • E21B11/00E02D5/44
    • PROBLEM TO BE SOLVED: To obtain a bucket for diameter-enlarging excavation by which a diameter enlarging ratio is increased and the height of a machine is reduced.
      SOLUTION: A hydraulic cylinder 72 is swingably mounted on a lifting frame 40. The rotation amount of a transmission member 60 and an opening/closing link 68 rotated by the telescopic motion of a piston rod 80 is amplified by a lower arm 50 and the opening/closing link 68, and is converted to a movement amount in a vertical direction of the lifting frame 40 and in a diameter-enlarging direction of an enlarging blade 16. Therefore, the lifting frame 40 and the enlarging blade 16 can be moved more largely than the telescopic movement of the piston rod 80. Consequently, the diameter enlarging ratio can be increased and the height of the machine for lifting a front end part of a diameter-enlarging bucket 10 to the ground surface can be reduced.
      COPYRIGHT: (C)2008,JPO&INPIT
    • 要解决的问题:为了获得直径扩大挖掘的铲斗,通过该挖掘,直径扩大率增加并且机器的高度降低。 解决方案:液压缸72可摆动地安装在提升架40上。传动部件60和通过活塞杆80的伸缩运动旋转的打开/关闭杆68的旋转量被下臂50 和开/关连杆68,并且被转换为升降架40的垂直方向上的移动量和扩大叶片16的直径扩大方向。因此,提升架40和放大叶片16可以是 比活塞杆80的伸缩运动更大程度地移动。因此,可以增加直径扩大率,并且可以减小用于将直径增大的铲斗10的前端部分提升到地面的机器的高度。 版权所有(C)2008,JPO&INPIT