Answer to Question #202961 in Mechanical Engineering for Lesego Luka

Question #202961

State the product design specification considering output shaft design factor as 1. Performance. 


1
Expert's answer
2021-06-07T05:46:09-0400

Spur gears are commonly employed in industrial machinery to transmit power, torque, and speed. This also makes the constant speed and +ve drive possible. If we are talking about the question, we must first evaluate the type of gear tooth, and we utilized 200 full depth involute type teeth for the best single set up spur gearbox. And we also know that it is for the best.

Force on the spur gear teeth 

Torque 

Velocity 

Lewi's equation, 

Dynamic force transmitted 

Check for wear  where 

Face width


Given data

P=10KW; N=1000 rpm; N=1700 rpm; Z=20

For material (1) 817M40 , the allowable stress 

(2) 655M13 , 

For pinion face width we know that Tangential force,  for steady load

Velocity pitch line 

Use lewi's equation

 ......(1)

Put all the values in equation 1

b=12m because 

Face width for pinion 

Now for face width of gear 

 No. of teeth on gear

Use lewi's equation

 ......(11)

Put all the values in equation 11

Face width for pinion 

Face width for pinion 

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