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    • 8. 发明授权
    • Cornu's spiral tooth gear
    • Cornu的螺旋齿齿轮
    • US08100028B2
    • 2012-01-24
    • US11887993
    • 2006-04-06
    • Tsutomu MiyaokuJiro KanehiroHidekazu Sasaki
    • Tsutomu MiyaokuJiro KanehiroHidekazu Sasaki
    • F16H55/00
    • F16H55/08Y10T74/19972
    • A Cornu's spiral is applied to a tooth profile of a gear. In accordance with the application of the gear, the Cornu's spiral may be modified two-dimensionally by some constant proportion. Since Cornu's spirals have similarity are similar, when a pressure angle is determined, the tooth profile can be standardized by a module, so that it is highly versatile.By replacing the tip of a tooth and the bottom of a tooth by another curve, such as an arc, the range of application can be increased. Since working is always by flank contact between a protrusion and a recess, contact surface stress is low. In addition, the radius of curvature of a dedendum is large. Therefore, tooth bending stress is low, and fatigue strength is high. Even if the number of teeth is small, an undercut is not produced. Even if there is no backlash, a smooth working is achieved, so that the tooth profile is suitable for devices requiring precise alignment.
    • Cornu的螺旋应用于齿轮的齿廓。 根据齿轮的应用,Cornu的螺旋线可能会以一定的比例二维地修改。 由于Cornu的螺旋线具有相似性,因此当确定压力角时,可以通过模块对齿廓进行标准化,使其具有高度的通用性。 通过用另一曲线(例如弧)代替牙齿的尖端和牙齿的底部,可以增加应用范围。 由于工作总是通过突起和凹部之间的侧面接触,接触表面应力低。 另外,齿根的曲率半径很大。 因此,牙齿弯曲应力低,疲劳强度高。 即使齿数较少,也不会产生底切。 即使不存在间隙,也能实现平滑的加工,使得齿廓适合于需要精确对准的装置。
    • 9. 发明申请
    • Cornu's Spiral Tooth Gear
    • Cornu的螺旋齿齿轮
    • US20090049942A1
    • 2009-02-26
    • US11887993
    • 2006-04-06
    • Tsutomu MiyaokuJiro KanehiroHidekazu Sasaki
    • Tsutomu MiyaokuJiro KanehiroHidekazu Sasaki
    • F16H55/08
    • F16H55/08Y10T74/19972
    • A Cornu's spiral is applied to a tooth profile of a gear. In accordance with the application of the gear, the Cornu's spiral may be modified two-dimensionally by some constant proportion. Since Cornu's spirals have similarity are similar, when a pressure angle is determined, the tooth profile can be standardized by a module, so that it is highly versatile.By replacing the tip of a tooth and the bottom of a tooth by another curve, such as an arc, the range of application can be increased. Since working is always by flank contact between a protrusion and a recess, contact surface stress is low. In addition, the radius of curvature of a dedendum is large. Therefore, tooth bending stress is low, and fatigue strength is high. Even if the number of teeth is small, an undercut is not produced. Even if there is no backlash, a smooth working is achieved, so that the tooth profile is suitable for devices requiring precise alignment.
    • Cornu的螺旋应用于齿轮的齿廓。 根据齿轮的应用,Cornu的螺旋线可能会以一定的比例二维地修改。 由于Cornu的螺旋线具有相似性,因此当确定压力角时,可以通过模块对齿廓进行标准化,使其具有高度的通用性。 通过用另一曲线(例如弧)代替牙齿的尖端和牙齿的底部,可以增加应用范围。 由于工作总是通过突起和凹部之间的侧面接触,接触表面应力低。 另外,齿根的曲率半径很大。 因此,牙齿弯曲应力低,疲劳强度高。 即使齿数较少,也不会产生底切。 即使不存在间隙,也能实现平滑的加工,使得齿廓适合于需要精确对准的装置。