Shandong Fuan Da truck parts manufacture Co., LTD Axle ratio calculations and in the middle of the rear axle ratio matching table
A, axleratioformula: |
Axle ratio=Main reduction ratio×Wheelspeed ratio |
Rear axlegear ratio=number of teeth÷passiveactivenumber of teeth |
ntermediate axle gear ratio=(number of teeth÷passiveactivenumber of teeth) × (number of teeth÷activepassivecylindricalcylindricalnumber of teeth) |
Wheelspeed ratio=wheelring gearteeth ofthe sungear÷number+1 |
Such as:1、old-fashioned STR:wheelring gearteeth57, the sungear teethnumber 23 forwheelspeed ratio 57÷23+1=3.478 |
28÷17×3.478=5.73 |
2、3.93EdgeRatio:wheelring gearteeth61, the sungear teethnumber29, wheelspeed ratio of61 ÷ 29 +1 = 3.1 |
33÷26×3.1=3.93 |
Second,in themiddle ofthe bridge,the middle ofthe rear axleratiomatchingtable
In themiddle ofthe bridge | The middle ofthe rear axle | ||
Ratio | Crown gear | Bridgegears andgearboxes | Crown gear |
4.8 | 17/28 | 208齿轮Z=26209齿轮Z=31 | 21/29 |
5.73 | 17/28 | 136齿轮Z=28137齿轮Z=28 | 17/28 |
6.72 | 15/29 | 136齿轮Z=28137齿轮Z=28 | 15/29 |
4.42 | 17/28 | 0001齿轮Z=270002齿轮Z=35 | 26/33 |
4.38 | 17/28 | 23/29 | |