Machine Parts Course Design - Cylindrical Gearbox

Contents

1. Kinematic calculation of the mechanism

2. Calculation of spur gear gear

3. Calculation of chain transmission

4. Output shaft calculation

5. Selection of bearings

6. Literature

Calculation of spur gear gear

1. Initial data for calculation:

Torque on the gear shaft: T1 = 28.8N/m ;

Torque on the wheel shaft: T2 = 153.6 N/m;

Gear shaft speed: n1 = 955 min-1;

Wheel shaft speed: n2 = 173.6 min-1;

Gear ratio: U = 5.5;

Drive operating life: Lh = 10 thousand hours;

Tmax/Tnom = 2.5.