Cylindrical two-stage expanded circuit gearbox with high-speed oblique stage and slow-moving straight-toothed stage

Content

Task

1 Kinematic calculation of the gearbox

1.1 Determination of efficiency and selection of electric motor

1.2 Determination of gear ratios, rotational speeds,
angular velocities and torques on shafts

2 Calculation of the slow-moving stage of the gearbox
(cylindrical straight-tooth transmission)

2.1 Selection of material and determination of permissible
Contact voltages

2.2 Project calculation

2.3 Verification calculation

3 Calculation of the gearbox speed stage
(cylindrical oblique gear)

3.1 Material selection and determination of permissible
Contact voltages

3.2 Project calculation

3.3 Verification calculation

4 Calculation of the chain transmission

5 Preliminary calculation of gearbox shafts

5.1 High-speed shaft

5.2 Intermediate shaft

5.3 Slow-moving shaft

6 Calculation of key connections

6.1 Gearbox shaft keyholes

6.2 Gearbox intermediate shaft keys

6.3 Gearbox shaft keys

7 Designing gearbox wheels

7.1 Design of the high-speed stage gear

7.2 Design of the high-speed step wheel

7.3 Construction of the gear of the slow-moving stage

7.4 Construction of the slow-moving step wheel

8 Structural dimensions of gearbox housing parts

9 Sketch layout of the gearbox

10 Checking the durability of bearings

10.1 Gearbox high-speed shaft bearings

10.1.1 Reactions of gearbox shaft supports

10.1.2 Construction of bending and torque plots
high-speed gearbox shaft

10.1.3 Calculation of bearing durability
high-speed gearbox shaft

10.2 Gearbox intermediate shaft bearings

10.2.1 Reactions of the intermediate shaft supports of the gearbox

10.2.2 Construction of bending and torque plots
intermediate shaft gearbox

10.2.3 Calculation of bearing durability
intermediate shaft gearbox

10.3 Gearbox shaft bearings

10.3.1 Reactions of low-speed gearbox shaft supports

10.3.2 Construction of bending and torque diagrams
low-speed gearbox shaft

10.3.3 Calculation of bearing durability
low-speed gearbox shaft

Bibliography