Research Article
Design and Investigation of an Asymmetric Logarithmic Spiral Gear Drive
Table 4
The parameters of the logarithmic spiral tooth profile.
| | Parameter | Numerical value of convex tooth profile | Numerical value of concave tooth profile |
| | Convex and concave tooth profile initial circle radius r1/r2 (mm) | 4.2 | 8.4 | | Logarithmic screw coefficient t | −2.5 × 10−3 | −2.5 × 10−3 | | Convex and concave tooth profile process angle θ1/θ4 (°) | – | 14.4189 | | Convex and concave profile termination angle θ2/θ5 (°) | 49.1265 | – | | Lateral offset of logarithmic spiral tooth profile center w1/w2 (mm) | 1.3034 | 4.8269 | | Longitudinal offset of logarithmic spiral tooth profile center f1/f2 (mm) | 1.6088 | 3.2176 |
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