![DRILLING TOOL AND METHOD FOR MODIFYING A BLIND HOLE](/abs-image/US/2016/03/24/US20160082523A1/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: DRILLING TOOL AND METHOD FOR MODIFYING A BLIND HOLE
- 专利标题(中):钻孔工具和修改盲孔的方法
- 申请号:US14731854 申请日:2015-06-05
- 公开(公告)号:US20160082523A1 公开(公告)日:2016-03-24
- 发明人: Ralf Thomsen
- 申请人: WPT Nord GmbH
- 优先权: DE202014007558.1 20140922
- 主分类号: B23B51/00
- IPC分类号: B23B51/00 ; F03D1/00 ; F03D1/06 ; F03D3/06 ; B23B49/00 ; B08B5/04
摘要:
The present invention relates to a drilling tool and method for modifying a blind hole in a blade root insert of a wind turbine. The invention further relates to an apparatus and method for cleaning a blind hole. The method for modifying a blind hole comprises: removing a blade screw located in the blind hole, inserting a drilling tool into the blind hole, fixing the drilling tool in a drill, recessing the blind hole by a predetermined depth, with a maximum diameter of the end section and of the hole bottom after recessing being smaller than or equal to a diameter of the end section prior to recessing and a transition from the end section to the hole bottom being round after recessing, removing the drilling tool and the drill, mounting the blade screw in the modified blind hole.
摘要(中):
本发明涉及一种用于修改风力涡轮机的叶片根部插入件中的盲孔的钻孔工具和方法。 本发明还涉及一种用于清洁盲孔的装置和方法。 用于修改盲孔的方法包括:移除位于盲孔中的刀片螺钉,将钻具插入盲孔中,将钻具固定在钻孔中,将盲孔以预定深度凹陷,最大直径 在凹陷之后的端部和孔底部小于或等于在凹陷之前的端部部分的直径,并且在从凹陷部分到端部部分到孔底部之间的过渡是圆形的,去除钻孔工具和钻头,安装 刀片螺钉在修改后的盲孔中。
公开/授权文献:
- US09914178B2 Drilling tool and method for modifying a blind hole 公开/授权日:2018-03-13