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1. 发明专利

JP2008031672A Excavation head of diametrically expanding excavator for constructing foundation pile 有权
标题翻译：挖掘机用于建造基础桩的挖掘机头
公开(公告)号：JP2008031672A
公开(公告)日：2008-02-14
申请号：JP2006204225
申请日：2006-07-27
申请人： Sumitomo Metal Ind Ltd , Takawaki Kiso Koji:Kk , Tokyo Seisakusho:Kk , 住友金属工業株式会社 , 株式会社東京製作所 , 株式会社高脇基礎工事
发明人： MATSUBARA HIROSHI , TANAKA HIROMASA , IKEDA MAKOTO , MORI NAOTO , KANEKO SHINJIRO , KASE YOSHIYUKI , NAGASAWA RYUTARO , SUGI TAKANAO
IPC分类号： E21B10/32 , E21B10/44
摘要： PROBLEM TO BE SOLVED: To provide an excavation head of an excavator for constructing a foundation pile, superior in excavation performance, capable of securing the quality of a foot protection expanded bulb, and capable of suppressing an earth removal quantity when pulling up, in the excavator in the form of gradually diametrically expanding an expanding blade by a spline structure.
SOLUTION: This excavation head 1 has a hollow driving shaft 2 and an excavation shaft 3 relatively movably stored in the axial direction inside its shaft. The expanding blade 4 joined by a pin to the driving shaft 2 side is expanded and contracted via a diametrically expanding plate 5 on the excavation shaft 3 side by using these relative movements. A spline is formed of a U-shaped key way 6 on the inner surface side of the driving shaft 2 and a key 7 on the outside surface side of the excavation shaft 3. The key way 6 is formed in a U shape out of a guide part 6a in the vertical direction, a first locking lock part 6b in which the key 7 is engaged in the circumferential direction when normally rotating the driving shaft 2 in the diametrically contracted state of the expanding blade 4, and a second locking lock part 6c in which the key 7 is engaged in the peripheral direction when normally rotating the driving shaft the a diametrically expanding state of the expanding blade 4.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种挖掘机的挖掘头，用于构造基桩，挖掘性能优越，能够确保脚保护膨胀球的质量，并且能够在拉起时抑制掉土量在挖掘机中以通过花键结构逐渐地扩张膨胀的叶片的形式。解决方案：该挖掘头1具有中空驱动轴2和挖掘轴3，其轴向相对可移动地存储在其轴内。通过使用这些相对运动，通过销与驱动轴2侧连接的膨胀叶片4通过径向扩张板5在挖掘轴3侧膨胀和收缩。在驱动轴2的内表面侧形成有U字键6的花键和挖掘轴3的外侧面上的键7.键槽6形成为U形，引导部分6a在垂直方向上的第一锁定锁定部分6b，当在扩张刀片4的直径收缩状态下正常旋转驱动轴2时，钥匙7沿圆周方向接合的第一锁定锁定部分6b和第二锁定锁定部分6c 其中当正常地旋转驱动轴时，钥匙7沿圆周方向啮合扩张刀片4的直径膨胀状态。版权所有（C）2008，JPO＆INPIT

2. 发明专利

JP2008031673A Method for confirming expanding blade diametrically expanded state of excavator for constructing foundation pile 有权
标题翻译：用于确定膨胀叶片的方法用于构造基础桩的挖掘机的完全展开状态
公开(公告)号：JP2008031673A
公开(公告)日：2008-02-14
申请号：JP2006204226
申请日：2006-07-27
申请人： Sumitomo Metal Ind Ltd , Tokyo Seisakusho:Kk , 住友金属工業株式会社 , 株式会社東京製作所
发明人： MATSUBARA HIROSHI , TANAKA HIROMASA , IKEDA MAKOTO , MORI NAOTO , KANEKO SHINJIRO , KASE YOSHIYUKI , NAGASAWA RYUTARO , SUGI TAKANAO
IPC分类号： E21B10/32 , E02D5/44 , E02D7/00 , E02D13/06
摘要： PROBLEM TO BE SOLVED: To provide an expanding blade diametrically expanded state confirming method capable of easily and surely grasping the diametrically expanded state of an expanding blade in the ground without separately requiring a special device and a facility.
SOLUTION: An excavation head 1 has a hollow driving shaft 2 and an excavation shaft 3 relatively movably stored in the axial direction inside its shaft, and the expanding blade 4 is expanded and contracted by these relative movements. Resistance is reduced by forming a space 21 between upper-lower pipe ducts 22 and 23 for injecting cement milk in (a) to (c). When the expanding blade 4 starts to diametrically expand by reverse rotation as (d), the space 21 is eliminated by the contraction of the excavation head 1, and the resistance increases since the upper-lower pipe ducts 22 and 23 are dislocated. When normally rotating as (e) after the expansion, the upper-lower pipe ducts 22 and 23 are aligned, and the resistance is reduced. The diametrically expanding state of the expanding blade 4 can be confirmed by an increase/decrease in the pressure of such cement milk or the like.
COPYRIGHT: (C)2008,JPO&INPIT
摘要翻译：要解决的问题：提供一种扩展刀片直径膨胀状态确认方法，其能够容易且可靠地掌握在地面上的扩张刀片的直径膨胀状态，而不需要专门的装置和设备。解决方案：挖掘头1具有中空驱动轴2和挖掘轴3，挖掘轴3在其轴内沿轴向相对可移动地存储，并且膨胀叶片4通过这些相对运动而膨胀和收缩。在（a）至（c）中，在上下管道22和23之间形成用于注入水泥浆的空间21来减小阻力。当膨胀叶片4（d）通过反向旋转开始径向膨胀时，通过挖掘头1的收缩来消除空间21，并且由于上下管道22和23脱位，阻力增加。当膨胀后（e）正常旋转时，上下管道22和23对准，电阻减小。膨胀叶片4的直径膨胀状态可以通过这种水泥浆等的压力的上升/下降来确认。版权所有（C）2008，JPO＆INPIT

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