苏格兰轭机构
苏格兰轭:带衬套的双凸缘滑靴、贯穿曲柄销及双端矩形导套。
What is it made of?
01 机架、主轴衬套与两端方导套
主轴有真实衬套孔;方导套上下及前后约束滑杆,保留0.02量级滑动净空。
02 开窗曲柄轮、轴肩与贯穿销
轮缘与辐条可看见后方支承;驱动销穿过滑靴衬套,前端垫圈防止轴向脱离。
03 一体长槽轭与防转方滑杆
槽净宽0.60、净高4.45;侧壁承受水平分力,足够长的双杆在极限位置也不脱出导套。
04 双凸缘滑靴与通孔衬套
0.57宽滑靴在0.60槽内滑动;两侧凸缘跨过槽边作轴向保持,0.302孔配0.28驱动销。
How do the parts work together?
x=r cosθ,r=1.8;竖槽吸收r sinθ,输出严格简谐。两根方滑杆在整个3.6行程内始终穿过固定导套。
x=r cosθ,r=1.8;竖槽吸收r sinθ,输出严格简谐。两根方滑杆在整个3.6行程内始终穿过固定导套。
Model scope and approximations
AI-assisted educational schematic, not manufacturing CAD. Materials, proportions and movements are limited to this model's description.
间隙已几何显示但位移采用理想中心线约束;不计算摩擦、磨损、轴承载荷或弹性。
Sources
- Primary academic mechanism reference
Ohio University atlas p.5 identifies the Scotch-Yoke as a slotted-pin mechanism. MechDesigner tutorial search excerpt confirms constant-speed crank yields simple harmonic slider motion; x follows the pin horizontal coordinate.