Belt conveyor drive (helical bevel gearbox)

Content

Introduction. 5

1 Drawing up a kinematic scheme..  6

2 Motor selection, kinematic and force calculation of the  drive 7

2.1 Choosing an Electric Motor. 7

2.2 Kinematic calculation. 7

2.3 Power Calculation. 8

3 Calculation of the flat-belt transmission. 9

4 Calculation of gear gears. 12

4.1 Calculation of a Spur Cylindrical Gear. 12

high-speed gearbox stage. 12

4.1.1 Selection of gear material. 12

4.1.2 Determination of the equivalent number of stress alternation cycles. 12

4.1.3 Determination of permissible contact stresses. 12

4.1.4 Determination of permissible flexural stresses. 13

4.1.5 Calculation of the geometrical parameters of the transmission. 14

4.1.6 Forces in meshing. 16

4.1.7 Test calculation for endurance by contact stresses.  16

4.1.8 Endurance test calculation for bending stresses. 17

4.2 Calculation of the bevel gear with a straight tooth of the low-speed gearbox stage. 19

4.2.1 Selection of gear material. 19

4.2.2 Determination of the equivalent number of stress alternation cycles. 19

4.2.3 Determination of permissible contact stresses. 19

4.2.4 Determination of permissible flexural stresses. 20

4.2.5  Calculation of the geometrical parameters of the transmission. 21

4.2.6 Forces in meshing. 23

4.2.7 Endurance test calculation for contact voltages.  23

4.2.8 Endurance test calculation for bending stresses. 24

5 Draft layout of the gearbox. 26

5.1 Method of calculating keyways. 27

5.2 Key under the pulley..  28

5.3 Key under the wheel of the high-speed transmission. 28

5.4 Key under the slow-speed gear . 29

5.5 Key under the low-speed gear wheel. 29

5.6 Key under the coupling. 29

6 Construction of gears and shafts. 30

7 Calculation of bearings for durability. 31

7.1 Calculation of Drive Shaft Bearings 31

7.1.1 Compilation of the calculation scheme..  31

7.1.2 Determination of support reactions and plotting 31 

7.2 Calculation of Intermediate Shaft Bearings 34

7.2.1 Compilation of the calculation scheme..  34

7.2.2 Determination of support  reactions and plotting 34 

7.3 Calculation of Driven Shaft Bearings 37

7.3.1 Finding forces in meshing and drawing up a design scheme..  37

7.3.2 Determination of support  reactions and plotting 37 

8 Selection of plantings. 40

9 Calculation of shafts. 41

9.1 Calculation of the drive shaft. 41

9.2 Countershaft Calculation 43

9.3 Calculation of the driven shaft. 45

10 Assembling, disassembling, adjusting and lubricating the gearbox. 47

11 Description of the wiring diagram..  48

List of References. 50