渐开线

The Winklhofer method is an exact method.But Winklhofer method cannot calculate centerdistance of a roller chain drive whose length of chain is an odd number of chain pitches.Involute function method is anapproximative method.

W ink lhofer方法是准确的计算方法，但只能用于链条总长是链节的偶数倍时的链传动，而渐开线法是近似法，不能精确地计算链传动中心距；而二分法是一种数值法，它可精确地计算链传动中心距，并且适用于链条总长是任意值的链传动，可计算出链传动中心距最大值和最小值。

Aim at disadvantages of traditional measuring methods,such as lower precision and complicated operations,a precise measuring method for pitch circle helix angle of involute spur gear by CMM was put forward.

针对渐开线圆柱斜齿轮分度圆螺旋角的传统测量方法精度低、操作复杂等缺陷，提出用三坐标测量机精确测量圆柱斜齿轮分度圆螺旋角的方法，介绍了其测量原理及步骤，并进行了测量精度分析。

In The author analyses the average load component of involve planet gear wheel trasmission.

对渐开线行星齿轮传动均载机构进行了分析。

Pressure Angle is the angle between a line tangent to an involute and a radial line through the point of tangency.

压力角：压力角是花键的渐开线齿廓的切线与通过切点的半径所组成的夹角。

Contact lines between worm and worm gear and relative curvature are the mainfactors that influence the properties of worm gear drive.

在《渐开线内啮合弧面蜗杆》的第一报中，已经详尽地阐明了提出这种蜗杆的理论依据。

To offer the kinematics equation of bionic joint ,composed by spherical gear with ring involute teeth, is the aim of this paper.

建立了基于渐开线环形齿球齿轮的仿生关节机构的运动学模型。

We invent the spherical gear with ring involute tooth.

发明了渐开线环形齿球齿轮机构。

The teeth have either straight or involutes profiles; the latter are stronger, more easily measured, and have a self-centering action when twisted.

牙齿要么直接或渐开线的概况；后者更强大，更容易衡量，并有自定心行动时，扭曲。

Key or 6 key square serration axle is the traditional structure of starter armature shaft for auto and tractor and has been replaced by cold rolling multi key involuting serration axle.

铣削加工的四键或六键矩形花键是汽车、拖拉机用起动机电枢轴上的传统结构，已逐渐被用冷滚轧加工的多键渐开线螺旋花键所代替。

The optimum design method for key parameters of involute internal gear slotting cutters is introduced.

介绍了渐开线直齿内齿轮插齿刀主要参数的优化设计方法，论述了该方法的数学建模及优化方法选择，并通过设计实例验证了该方法对设计参数的优化效

The concept of equivalent rotationally rigidity is offered and the formula of rotationally rigidity is obtained.

主要做了如下几个方面的工作：对伸臂位于顶部的单层框架—筒体模型进行分析，提出了等效转动约束的概念和转动约束刚度的表达式。

Male cats normally do not need aftercare with the exception of the night after the anesthetic.

男猫通常不需要善后除了晚上的麻醉。