Importance

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Abstract

The planing blade axle includes an axle body and blades assembled externally onto the axle body in a predefined pattern. Tapped holes are arranged onto the blade assembly surface of the axle body for assembly of blades. A pyramidal through-hole is placed centrally onto the blade, so that the blades screw securely into the tapped hole via the bolts with pyramidal end blade. An expanded shoulder is additionally placed at a top of the pyramidal through-hole, so that an expanded flange is placed opposite to the pyramidal end of the bolt. When the blade is screwed by the bolt, a definite and solid positioning effect will be achieved if the flange contacts the expanded shoulder of the blade. The present invention efficiently prevents excessive locking and subsequent cracking of the blade, increasing positioning area, leading to prolonged service life and a more stable locking state with improved applicability.

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First Claim