直齿圆柱齿轮副

Model notes are in Simplified Chinese.

20 齿主动轮与 40 齿从动轮、轮毂、轴和固定支承。

直齿圆柱齿轮副: assembly preview

What is it made of?

01 带孔轴承机架

cast iron

两铜衬套将径向力传给连续机架;固定中心距4.2,轴肩与压圈轴向限位。

02 20齿渐开线主动轮

steel

20°压力角、模数0.14;有键槽的贯通轴孔与轮毂。

03 40齿渐开线从动轮

steel

齿圈、六条承载轮辐和带键槽轮毂;反转半速。

04 键连接阶梯轴

steel

轮毂键槽、轴键槽和独立平键配合;轴肩与前压圈夹持轮毂。

05 键连接阶梯轴

steel

轮毂键槽、轴键槽和独立平键配合;轴肩与前压圈夹持轮毂。

How do the parts work together?

两外齿轮反向转动,ω₂/ω₁ = −z₁/z₂ = −1/2。

工作运动:20 齿输入轮驱动 40 齿输出轮反向半速旋转;播放相位连续累积,不在一圈处重置。

Model scope and approximations

AI-assisted educational schematic, not manufacturing CAD. Materials, proportions and movements are limited to this model's description.

齿侧按20°渐开线离散;齿根用径向过渡而非滚刀包络。设置0.006节圆齿厚减薄;未进行强度、公差、润滑与接触动力学设计。

Sources

References are preserved from the model library and have not been independently reverified here. Model reference date: 2026-10-26.

3D runtime: Three.js · Machine Skill · MIT

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