H.W1 A belt drive system shown, is used as a speed reducer. The input shaft rotates at 2000 rpm and has a 144-tooth sprocket with a pitch diameter of 360 mm. The output shaft has a 72-tooth sprocket with a pitch diameter of 90 mm. The center distance between the two shafts is 750 mm. Determine the following for the belt drive: a. The velocity ratio b. The angular velocity of the output shaft c. The linear belt speed

H.W1 A belt drive system shown, is used as a speed reducer. The input shaft rotates at 2000 rpm and has a 144-tooth sprocket with a pitch diameter of 360 mm. The output shaft has a 72-tooth sprocket with a pitch diameter of 90 mm. The center distance between the two shafts is 750 mm. Determine the following for the belt drive: a. The velocity ratio b. The angular velocity of the output shaft c. The linear belt speed

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Power Transmission Elements

It is defined as the energy transfer from one location to another location. The energy will start moving from the energy generation source to the energy applied position to obtain the work output. From this method, a large amount of electric energy moves from the power station to various electrical substations.

Question

H.W 1
A belt drive system shown, is used as a speed reducer. The input shaft rotates at 2000 rpm and has a
144-taoth sprocket with a pitch diameter of 360 mm. The output shaft has a 72-tooth sprocket with a pitch diameter of 90
mm. The center distance between the two shafts is 750 mm.
Determine the following for the belt drive:
a. The velocity ratio
b. The angular velocity of the output shaft
c. The linear belt speed
d. The belt wrap on the input and output sprockets
e. The belt perimeter length
f. Optional: Draw the schematic of the beit drive system
using CAD
g. Coefficient of friction between the belt and the pulley

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A simple gear train of 30 and 40 teeth for pinion and gear wheel respectively is used to drive an electric wheelchair at a velocity that is double the maximum velocity of slip. The pinion has an equal addendum as the gear wheel , a module of 3 mm and a pressure angle of 14.5 ° . The wheelchair has a maximum velocity of 5 m/s when is pinion rotates at 800 r.p.m . Calculate: 1.1) The magnitude of the velocity of slip of gear mesh. 1.2) The angular speed of the gear wheel in rad/s. 1.3) The maximum length of a path of the approach in mm. 1.4) The length of a recess in mm. 1.5) The addendum of the gear in mm. 1.6) The constant ratio.
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