| 摘要 |
The coring machine comprises several guide columns fixed to a plinth and along which is translated a trolley on which is mounted a motor whose output shaft carries a drill. The plinth frame (10), is in the shape of a vertical parallelepiped frame (12,14), in which the guide columns are fixed along the length of the nacelle. The columns are made in the form of three endless screws (20,21,22) distributed in a triangle in the nacelle. These screws are rotated by drives (23-29) in a synchronised manner. A trolley (30), which can be moved along the columns, has the function of a mechanical return angle between a drill (5) directed along the nacelle length and a motor (35) directed in the nacelle height direction. The trolley and the motor support are engaged on the screws through tapped holes.
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