RU1808702C - Disbarking machine cutting tool - Google Patents

Description

When the rotor of the debarker rotates with the cutting tools around the progressively moving timber, the remainder of the knot falls into the hole of the annular knife 3 and acts on its cutting edge 4. In this case, the cutting forces RRVZ and feed Rpod arise. acting in the direction of the cutting velocity vectors V and the feed C. (Fig. 3). -

Having projected Rez and Rpod on a tangent to the circumference of the cutting edge at the point of its interaction with the knot, we obtain the forces PI and Ra. The resulting sum of these forces during rotation of the cutting tool will cause the knife to rotate by a certain angle, the magnitude of which depends on the relative position of the knot and knife when they meet. As the next knots are cut, the amount of rotation of the knife will constantly increase. Under these conditions, the cutting edge of the knife will wear uniformly over its entire length.

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Claims (1)

SUMMARY OF THE INVENTION Cutting tool for a debarking machine, comprising a tool holder mounted on it by means of a fixing device with the possibility of self-rotation of the annular tool and a bolt connection between the tool holder and the fixing device, characterized in that, in order to reduce the metal consumption of the tool and increase work efficiency, the external the contour of the annular cutter has a stepped shape with a smaller diameter of one of the steps from the side of the cutting edge, and the locking device has an annular akladku with the inner contour of the stepped shape, embracing with a clearance corresponding to the associated cutter surface and one of its stepped surfaces and its end with the corresponding surfaces of the toolholder. 9ug.i Aa Phil. 2.