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The device null which locks the drum for excavation in the drilling rig in order to dig the channel in the earth
The device null which locks the drum for excavation in the drilling rig in order to dig the channel in the earth
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机译:将钻机锁定以在挖掘设备中进行挖掘以挖出地下通道的装置零位
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摘要
The invention relates to a device for affixing cutter drums on an apparatus designed to cut trenches in the ground. The driver includes a revolving plate 4 disposed perpendicular to its axis and to the end of the latter, the plate having on its periphery a convex polygonal shape 9. A cutter drum 8 is provided with a portion 8a including a central hollow of concave polygonal shape 10 corresponding to the convex polygonal shape 9 of the plate 4 and of slightly greater dimensions. Bolts 11 unite the cutter drum 8 to the said plate 4 such that the rotational driving of the cutter drum 8 by the plate is performed through the medium of the aforesaid polygonal surfaces 9, 10 which come into engagement with one another.
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