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Direction of rotation of the worm reducer Nov 07, 2018

Determine the left or right hand rule of the worm wheel relative to the worm. When the worm is right-handed (the worm is also rotated to the left and right and the judgment method is the same as the direction of the helical gear), the right-hand rule is used. The worm gear reducer is left-handed when left-handed. law. The four fingers are bent in the direction of the direction of the worm (the straight arrow indicates the direction of circular motion on the visible side of the worm), and the opposite direction of the thumb is the direction of movement of the turbine relative to the worm. The relationship between the worm and the turbine in the worm reducer depends on The relative position between the two, the direction of rotation of the worm and its direction of rotation.


The worm rotation direction (referring to the direction of the lead angle of the worm itself) is divided into left-handed and right-handed, and both the left-handed worm and the right-handed worm can be rotated clockwise and counterclockwise. There are four cases in total:

1. The worm rotates to the left, the worm is on, and the worm is down. The right hand rotates the worm clockwise, and the worm wheel rotates counterclockwise;

2. The worm rotates to the left, the worm is under, and the worm is on. The right hand rotates the worm clockwise, and the worm wheel rotates clockwise;

3. The worm rotates to the right, the worm is on, and the worm is down. The right hand rotates the worm clockwise, and the worm wheel rotates clockwise;

4. The worm rotates to the right, the worm is on, and the worm is down. The right hand rotates the worm clockwise, and the worm wheel rotates counterclockwise;


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