Method for directionally swaying and resetting harrow teeth of rolling harrow loader-excavator and rolling harrow loader-excavator with directional sway and reset harrow teeth for implementing such method

A method for directionally swaying and resetting harrow teeth of a rolling harrow loader-excavator, the method being implemented through the following steps:

• step 1:
• arranging a torsion spring shaft supporting piece on a rolling harrow rotary piece and arranging a tooth handle sway limiting piece on the torsion spring shaft supporting piece next to a position of a rolling harrow supporter;
• step 2:
• arranging a directional sway and reset tooth handle on a lower portion of a directional sway and reset tooth point;
• step 3:
• arranging a tooth handle rotary hole piece on the directional sway and reset tooth handle, connecting a torsion spring and the tooth handle rotary hole piece to the torsion spring shaft supporting piece in a penetrating manner by using a torsion spring tooth handle shaft, limiting the torsion spring tooth handle shaft on the torsion spring shaft supporting piece by using a torsion spring tooth handle shaft retaining piece, arranging a fixed end of the torsion spring on the tooth handle sway limiting piece or the torsion spring shaft supporting piece, and arranging a movable end of the torsional spring on the directional sway and reset tooth handle;
• step 4:
• arranging a tooth point sway limiting piece for mutually limiting the tooth handle sway limiting piece on the directional sway and reset tooth handle, wherein the tooth handle sway limiting piece and the tooth point sway limiting piece limit each other to prevent the directional sway and reset tooth point from swaying towards a space other than a limiting position of the tooth handle sway limiting piece;
• and
• step 5:
• hinging the rolling harrow rotary piece to the rolling harrow supporter, arranging the rolling harrow supporter on a body, arranging a feeder mechanism on the body, and enabling a driving mechanism to drive the rolling harrow rotary piece to rotate, wherein when materials are clamped between the rolling harrow supporter and the directional sway and reset harrow teeth, the directional sway and reset harrow teeth continue to rotate, and a rotating force drives each tooth handle rotary hole piece to rotate about the corresponding torsion spring tooth handle shaft and simultaneously drives the movable end of the corresponding torsion spring to move, so that the corresponding directional sway and reset tooth point rotates in a direction away from the harrow supporter, and the clamped materials fall off;
• the directional sway and reset harrow teeth continue to rotate, and when the directional sway and reset harrow teeth rotate and leave a material clamping position between the directional sway and reset harrow teeth and the harrow supporter, the movable end of each torsion spring restores and resets each directional sway and reset tooth point for continuously harrowing materials.