Shaft Carrying Gears | Design of Shafts | Design of Machine Elements

[@krishanayadav1326]

A solid shaft made of SAE 1030 is supported on the bearings which are 1000mm apart. It receives 22kW from a 1000rpm motor located behind it through flat belt, The flat belt pulley on the shaft is located with an overhang of 150mm from the left hand bearing. The diameter of the pulley on the motor shaft is 275mm and speed reduction by flat belt is 5:1. The shaft transmits the power to another shaft located in front of it through the spur gear having 30 teeth and 5mm module. The gear located with an overhang of 125 mm from the right hand bearing. Design solid shaft if load is applied suddenly with minor shock and shaft is rotating clockwise when it is seen from right hand. Assume belt tension ratio is 3:1.

[@krishanayadav1326]

Sir please solve this problem

[@ayushshrivastav7442]

Sir is there references for the formula and table used

[@themechanicalengineer]

Yeah, I used PSG design data book.

[@krishanayadav1326]

Sir ye btech ka Syallabus hai of design of machine element

[@themechanicalengineer]

Yes

[@RiamurendaMatenzhe]

Sir help me I'm lost im Calculation of Forces acting on Pinion (P) wen we ar drawing forces I don't understand why is Big circle being called driving gear and sometimes is Driven Gear ,im lost 😐 i only know that if we came a cross 2 gears meshing The bigger 1 is Driven and smaller one is driver

[@themechanicalengineer]

It's not about the size of the gear. In the question, if it is stated that "the shaft or gear receives power," it means it is a driven gear. If it is stated that "the shaft or gear delivers power," it means it is a driving gear.

[@RiamurendaMatenzhe]

​@@themechanicalengineerThank you sir

[@HuyLe-py3wz]

I dont know how to have the maximum torque

[@themechanicalengineer]

Can you give me more details about your query?