REMOVABLE TOOTH COUPLING SYSTEM FOR THE BUCKET OF A BUCKET EXCAVATOR

摘要

The system can be used in digger machines and has an adapter (2) for fixing along the leading edge of the bucket. In the adapter (2), removable tooth (3) is positioned, fixed by fixator (11) against accidental falling. The adapter (2) has a shape similar to truncated pyramid with rounded surfaces and at the coupling end it has a coupling bracket (6) of a shape corresponding to the profile of the leading edge. The adapter (2) has at its other end a longitudinal cylindrical opening (7) where a fixator (11) is positioned in a ring-shaped insert (10) at the end of the cylindrical tail (9) of the tooth (3), where the cylindrical opening (7) has a ring-shaped channel (13). The fixator (11) is elastic and has the shape of cylindrical ring with a slot (15) in its peripheral wall (16). The upper surface (12) of the coupling bracket (6) of the adapter (2) is inclined against the longitudinal axis O of the cylindrical opening (7) for the tooth (3) at an alpha angle not greater than 45?, and the optimum will be 10?.