Multi-point contact cylindrical gear meshing pair based on conjugate curves
A multi-point contact, cylindrical gear technology, used in gear transmissions, belts/chains/gears, components with teeth, etc., can solve the problems of large tooth surface slip rate, tooth surface wear, and low tooth surface bearing capacity.
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[0098] Such as figure 1 , figure 2 , image 3 In the illustrated embodiment, three tooth profile curves are selected in the form of arc curves in the partial different cross-sections of the tooth surface, and the optimal contact pressure angle is determined to realize the general distribution of three-point contact in different cross-sections. Such as figure 1 , 2 As shown, the convex and concave tubular meshing tooth surfaces constructed based on the conjugate curve meshing theory form a mating meshing pair. The meshing pair moves along the trajectory of the contact point in the axial direction, and the two are in general three-point contact in the partial different section of the tooth surface;
[0099] A cylindrical helix is selected as the conjugate contact curve of the tooth surface. Such as image 3 As shown, in the space coordinate system l 1 , L 2 And l 3 Are three spiral curves on the cylindrical surface, satisfying curve l 2 Relative curve l 1 Rotation angle Δθ arou...
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