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1. 发明专利

JP2007197998A Cutter-bit mounting structure and cutter-bit maintenance method 审中-公开
标题翻译：切刀安装结构和切割机维护方法
公开(公告)号：JP2007197998A
公开(公告)日：2007-08-09
申请号：JP2006017534
申请日：2006-01-26
申请人： Ishikawajima Harima Heavy Ind Co Ltd , Kajima Corp , 石川島播磨重工業株式会社 , 鹿島建設株式会社
发明人： NAKATSURU HIROSUKE , HATANO TORU , SHIBATA MANABU , DANNO HITOSHI , OSADA MASAO , ISHINO TOMOFUMI
IPC分类号： E21D9/087
摘要： PROBLEM TO BE SOLVED: To provide a cutter-bit mounting structure and a cutter-bit maintenance method which can cope with the abrasion of the cutter bit without damaging a cutter head and equipment near the cutter head when the bit is worn out, and enable the replacement of the bit without making a worker get out to the face side of the cutter head when the abrasion of the bit has progressed. SOLUTION: When a bit body 10 is worn out by a predetermined amount, a rod 9 is protruded to a face side from a guide hole 8 by elongating a jack 11 depending on the amount of abrasion, so that the radius of cutting by the bit body 10 can be returned to a state before the abrasion. When the abrasion of the bit body 10 has further progressed, the jack 11 is contracted and separated from the rod 9 on the anti-face side of the cutter head 2, so that the rod 9 can be extracted from the guide hole 8, and the bit body 10 is replaced singly or integrally with the rod 9. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：提供一种刀头安装结构和刀头维护方法，其可以在刀头磨损时克服刀头的磨损而不损坏刀头和设备附近的设备并且当钻头的磨损发展时，能够使钻头更换而不使工作人员离开刀头的正面。解决方案：当钻头体10磨损预定量时，杆9通过根据磨损量伸长千斤顶11而从导向孔8向正面侧突出，使得切割半径通过钻头体10可以在磨损之前返回到状态。当钻头体10的磨损进一步发展时，千斤顶11在刀头2的防侧面上与杆9收缩并分离，使得杆9能够从导向孔8中取出，钻头体10单独地或与杆9一体地替换。版权所有：（C）2007，JPO＆INPIT

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