POSITION CONFIRMATION DEVICE OF ROTATIONAL DRIVING HEAD OF EXCAVATOR,申请号JP20150002622-传众专利搜索

POSITION CONFIRMATION DEVICE OF ROTATIONAL DRIVING HEAD OF EXCAVATOR

申请公布号：JP2016125327(A)

申请号：JP20150002622

申请日期：2015.01.08

申请公布日期：2016.07.11

申请人：

YBM CO LTD

发明人：HIRAKAWA SHINGO

分类号：E21B15/00;E02D7/22

主分类号：E21B15/00

摘要：PROBLEM TO BE SOLVED: To provide a position confirmation device capable of always confirming and correcting a position of its rotational driving head, in an excavator such as a ground improvement machine having a folding or attachable-detachable leader.SOLUTION: An excavator for providing folding or attachable-detachable sub-leaders 9 and 11 in a main leader 10, is provided with a sensor for confirming movement positions S1, S2, S3 and S4 of a rotational driving head 8 for moving on leaders 4 (9, 10 and 11). This sensor can specify a position by a combination of an S pole and an N pole of a magnet by a plurality of magnetic sensors, and is constituted so as to be installed in a plurality of positions. Even if the leader 4 is folded up or separated when carrying, its specific position can be maintained. Detection confirmation of the sensor is managed by a management device, and when abnormality is caused, it can be informed to an operator by an alarm sound.SELECTED DRAWING: Figure 4