销键强度计算器
圆柱销剪切校核 + 平键挤压/剪切校核，二合一快速验算工具。
① 圆柱销剪切强度（平面型）
τ = 4F / (πd²Z)
τ = - MPa
② 圆柱销强度（圆周型/传递转矩）
σp = 4T/(DdL) | τ = 2T/(DdL)
σp= - MPa
τ = - MPa
τ = - MPa
③ 平键强度校核
P = 2T/(Dkl) | τ = 2T/(Dbl) | k = h/2, l = L−b
工作长度 l=L−b=-mm | 接触高度 k=h/2=-mm
挤压应力 P = - MPa | 剪切应力 τ = - MPa
挤压应力 P = - MPa | 剪切应力 τ = - MPa
平键标准尺寸速查（GB/T 1095）
| 轴径 d (mm) | b×h | 轴槽深 t | 毂槽深 t1 |
|---|---|---|---|
| 6~8 | 2×2 | 1.2 | 1.0 |
| ＞8~10 | 3×3 | 1.8 | 1.4 |
| ＞10~12 | 4×4 | 2.5 | 1.8 |
| ＞12~17 | 5×5 | 3.0 | 2.3 |
| ＞17~22 | 6×6 | 3.5 | 2.8 |
| ＞22~30 | 8×7 | 4.0 | 3.3 |
| ＞30~38 | 10×8 | 5.0 | 3.3 |
| ＞38~44 | 12×8 | 5.0 | 3.3 |
| ＞44~50 | 14×9 | 5.5 | 3.8 |
| ＞50~58 | 16×10 | 6.0 | 4.3 |
| ＞58~65 | 18×11 | 7.0 | 4.4 |
| ＞65~75 | 20×12 | 7.5 | 4.9 |
| ＞75~85 | 22×14 | 9.0 | 5.4 |
| ＞85~95 | 25×14 | 9.0 | 5.4 |
| ＞95~110 | 28×16 | 10.0 | 6.4 |
| ＞110~130 | 32×18 | 11.0 | 7.4 |