滚齿、插齿、顶切、根切、内外啮合传动————动画

zengxiaodong

zengxiaodong 发表于 2023-2-7 08:50
交错轴齿轮齿条传动，如果轴线角等于小齿轮的螺旋角，也就是齿条变成直齿条，则计算也出现奇怪的结果。

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交错轴齿轮齿条传动，如果轴线角等于小齿轮的螺旋角，也就是齿条变成直齿条，则计算也出现奇怪的结果。
必须设定轴线角与小齿轮的螺旋角有一个很小的差异，例如相差0.0001度，或者小齿轮设置不为0的变位系数，例如x=0.0001，才能进行计算并得到结果。

zengxiaodong

这是某公司的产品说明，其中特别指出，ZC蜗杆在德国被称作ZH蜗杆。

zengxiaodong

而在Kisssoft的技术规范中 Kisssoft齿轮技术规范.pdf (217.29 KB, 下载次数: 7)

2023-2-8 08:58 上传

点击文件名下载附件

5 Worms with enveloping worm wheels

This module can be used to calculate cylindrical worms mated with enveloping gears. It is possible to determine the geometry, efficiency, temperature stability, pitting safety, wear resistance, root safety, and deflection safety of the cylindrical worm wheel pairings. The calculation of the start-up behavior is also possible. Various worm wheel materials are supplied as additional data files. The flank forms ZA, ZN, ZI (ZE), ZK and ZH (ZC) can be included in the calculation. The calculation procedure follows the one described in DIN 3996 and ISO/TR 14521.
During worm geometry calculation according to DIN 3975 or ISO/TR 14521, control measurements (measurement over pins and balls for the worm with flank form ZA, ZN, ZI or ZK) can be taken. The manufacturing tolerances are taken into account in accordance with DIN 3974-1 and 3974-2 (1995).
Additional design functions for facewidth, center distance and lead angle are available.

5.1 Geometry calculation

Geometry is calculated according to the ISO/TR 14521 and DIN 3996 norms. Flank shapes ZA, ZN, ZI (ZE), ZK and ZH (ZC) are supported. During worm geometry calculation according to DIN 3975 or ISO/TR 14521, control measurements (measurement over pins and balls for the worm with flank form ZA, ZN, ZI or ZK) can be taken. The manufacturing tolerances are taken into account in accordance with DIN 3974-1 and 3974-2 (1995).

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5.4 2D/3D Export

The correct tooth form of the cylindrical worm is represented in 2D geometry. The correct tooth form of the enveloping worm wheel is represented in 3D geometry, according to the selected worm profile. Using CAD interfaces, it is possible to generate cylindrical worms as a two-dimensional DXF or IGES file. A cylindrical worm and enveloping worm wheel can be generated as three-dimensional models in STEP format. Graphical contact analysis can be performed with the skin model in 3D geometry.
Integrations are also available for the CAD systems commonly used in mechanical engineering. These integrations generate a 3D model of the cylindrical worm directly in the relevant CAD system. The enveloping gear cannot be exported here. A graphical contact pattern analysis can be performed with the skin model variant in 3D geometry. To do this, click the appropriate function button to rotate one gear slightly against the other until the contact pattern appears – then generate the two gears. To ensure the gears do not engage too fully, we recommend you set the number of rotation steps to 30 or higher (in Properties).

zengxiaodong

行星齿轮啮合接触迹线动画，由于文件大小限制，位置分辨率不能太高

zengxiaodong

Kisssoft这个行星齿轮接触迹线有问题！

行星轮上的转矩无法平衡，要飞车了。也就是说，行星轮上的接触迹线不可能都是同侧齿面，而应该是异侧齿面分别与太阳轮和内齿圈接触，这也正是行星轮齿弯曲疲劳寿命较低的根本原因。

zengxiaodong

在这个帖子中比较了各种蜗杆的齿形，其中有个渐开线端面蜗杆的啮合接触迹线动画，让人爱不释手！

http://www.gearbbs.com/forum.php?mod=viewthread&tid=165242

woodee

zengxiaodong 发表于 2023-2-9 13:30
在这个帖子中比较了各种蜗杆的齿形，其中有个渐开线端面蜗杆的啮合接触迹线动画，让人爱不释手！

http:/ ...

楼主花大气力整理了许多的资料、图片以及软件说明，令同行读起来信息、知识量足够大。

的确辛苦了！

zengxiaodong

搞到现在，可惜没有圆弧齿轮传动的精确3D啮合接触迹点动画，这可是咱中国人从前苏联引入的宝贝！

zengxiaodong

本坛大佬费老师提供了圆弧齿轮传动的啮合接触动画


http://www.gearbbs.com/forum.php ... page%3D1&page=4

zengxiaodong

圆弧齿轮由于其端面重合度为零，故必须是斜齿才能保证连续定传动比传动。
因此，一对圆弧齿轮只有满足模数相等、螺旋角相等(且旋向相反)、轴向重合度大于1，才能保证实现连续定传动比传动。


在啮合过程中，啮合点沿轴向等速移动，形成两齿廓间的相对滚动，而且滚动速度很大，有利于充分跑合后的齿面间油膜的形成，因此其磨损小，效率高。