| 摘要 |
754,031. Toothed gearing. PHILLAC SOC. ANON. May 28, 1954, No. 15901/54. Drawings to Specification. Class 80(1) In reversible helical gears on parallel axes having helicoidal teeth, the inclinations of the helices of the teeth of the pinion and gear being different, but the teeth having the same axial pitch and the contact surface between the teeth being displaced from the plane through the axes of the gears, the side profiles of the sections of the teeth in planes perpendicular to the helix, perpendicular to the axis of rotation, and passing through the axis. of rotation are each constituted by a single arc of a circle for both the pinion and gear wheel. The centres of the arcs are preferably for the pinion inside the tangent at the root circle and for the gear wheel external to the outside circle of the teeth |
