| 摘要 |
A device for pipe treatment comprises a housing, cutting elements. The device is equipped with two housings with guides that are in contact with a bed guide, and in the first housing on the bearings an external cutting head is mounted, which has a gear ring from one side and an internal conical recess from other side. Around entire circumference of the external cutting head through cutting elements are evenly distributed and cutoff elements evenly spaced around the circumference spring-loaded to conical surfaces of a bush, which is secured against rotation and with possibility of movement along an axle by a cam on a smooth surface in the recess of the first housing. On the second housing an axle is secured, on which an internal cutting head is mounted on bearings, which has an external gear ring from one side and an external conical recess from the other side. The internal cutting head comprises evenly spaced around the circumference boring cutting elements and evenly spaced around the circumference cutoff cutting elements spring-loaded to the conical surface of bush, which is secured against rotation and can be moved along with the axle by the cam on the smooth surface in the axle recess. |
