Question

Q1 A belt drive and pulley arrangement is designed to transmit 75 kW of power at 1200 rpm, generated by a six-pole squirrel-cage induction motor. The belt connects two shafts 3 m apart, with axes in the same horizontal plane. The driven shaft runs at half the angular speed of the driver and it runs a light shock machinery.
As a design engineer you need to do the following;

i. Design shafts suitable for this application (20 marks)

ii. Select the belt drive arrangement; Open belt or Crossed belt? Give the justification of your choice. (2 marks)

iii. Select the type of the belt; Flat belt or V-belt? Give the justification of your choice. (2 marks)

iv. Design a belt drive suitable for this application. (20 marks)

v. Discuss the life of the belt (2 marks)

vi. Select the suitable pulley for the given application (4 marks)

vii. Illustrate the shaft-belt arrangement designed for the given load conditions. (5 marks)


Prepare a report including all design calculations, assumptions if any, justifications if any, citations if any. Use headings, sub headings.
The citations and references, use of appropriate formatting carries 5 marks.

Answer 1

ENGINEERING niveu step-L Diamuler 역 Smollor and bigger pulley. UX1ng belt Velocity. 역た m/peu Go 10D オ 1200 d286.47m Sledc Ha belt velutity for xImum Gn lech o130- 2 Dd 30

心:1구4.26 fa 1+12 296 = 4A30 c -421.2 mm

リbdt dove artryRnr.4 t.qten belt. thht Side Where the Cenk diniance between two paralel Clot anomi ed remared → (enh4 día tan-e speed. step d , →

Stepped pulley chivwe Spped puliy hive bold reloted 。We dool9n belt drive,