1. Fig. shows an epicyclic gear train. Pinion A has 15 teeth and is rigidly fixed to the motor shaft. The wheel B has 20 teeth and gears with A and also with the annular fixed wheel E. Pinion C has 15 teeth and is integral with B (B, C being a compound gear wheel). Gear C meshes with annular wheel D, which is keyed to the machine shaft. The arm rotates about the same shaft on which A is fixed and carries the compound wheel B, C. If the motor runs at 1000 r.p.m., find the speed of the machine shaft. Find the torque exerted on the machine shaft, if the motor develops a torque of 100 N-m. B

1. Fig. shows an epicyclic gear train. Pinion A has 15 teeth and is rigidly fixed to the motor shaft. The wheel B has 20 teeth and gears with A and also with the annular fixed wheel E. Pinion C has 15 teeth and is integral with B (B, C being a compound gear wheel). Gear C meshes with annular wheel D, which is keyed to the machine shaft. The arm rotates about the same shaft on which A is fixed and carries the compound wheel B, C. If the motor runs at 1000 r.p.m., find the speed of the machine shaft. Find the torque exerted on the machine shaft, if the motor develops a torque of 100 N-m. B

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

See similar textbooks

Similar questions

A reverted gear train with a speed ratio of 12 consists of four gear wheels. Gear A has a module pitch of 3mm and is meshed with gear B. Whereas gear C that is meshed with gear D has a module pitch of 2.5mm. Gear B and C form a compound gear system. The distance between axis of rotation of driving gear A and driven gear B is equal to 200mm. If gear A has 24 teeth, determine the suitable number of teeth for all gears.
Two meshing spur gears with 20° pressure angle have a module of 4 mm. The centre distance is 220 mm andthe number ofteethonthe pinionis 40. What shouldbethe new centre distance so that pressure angle is increased to 22°?
Plate gear C of this gear system are carried on the arm A and free to rotated. the pitch circle diameter of the internally toothed ring gear D is to be 214 mm and the module 4 mm. When the ring gear D is stationary, the arm A, which carries three planet wheels C of equal size, is to make one revolution in the same direction as the sun wheel B for every five revolutions of the driving spindle carrying the sunwheel B.Determine suitable number of teeth for all the wheels and the exact diameter of pitch circle of the ring.1.1.Calculate the number of teeth of the ring gear D.(3)1.2.State an equation tha relate the number of teeth of gear D, B and C.(1)1.3.Use the table method to calculate the number of teeth of gear B.(13)1.4.Calculate the number of teeth for gear C.
In an epicyclical gear train of the sun and planet, the pitch circle diameter of the internally toothed ring is to be 224mm and the module 4mm. when the ring D is stationary, the spider, which carries three plant wheels C of equal size, is to make one revolution in the same sense as the wheel For every five revolutions of the driving spindle carrying the sun wheel B. Determine suitable numbers of teeth for all wheel.
The teeth of the gear arrangement have Gear A=40teeth, Gear B=70 teeth and Gear C= 50teeth, a pinion (driver Gear) that rotates at 625 rpm, and idler Gear B and a driven gear (Gear C). The gears have a module of 5mm and a pressure angle of 200. Find the pitch diameter of gear C in mm.
The lath machine in the Central University of Technology (CUT) mechanical workshop uses epicyclic gear train shown in Figure 1 to operate. Plate gear C of this gear system are carried on the arm A and free to rotated. the pitch circle diameter of the internally toothed ring gear D is to be 214 mm and the module 4 mm. When the ring gear D is stationary, the arm A, which carries three planet wheels C of equal size, is to make one revolution in the same direction as the sun wheel B for every five revolutions of the driving spindle carrying the sun wheel B. Determine suitable number of teeth for all the wheels and the exact diameter of pitch circle of the ring. Use the table method to calculate the number of teeth of gear B and calculate the number of teeth for gear C.
Figure shows some details of a compound epicyclic gear drive where I is the driving or input shaft and O is the driven or output shaft which carries two arms A and B rigidly fixed to it. The arms carry planet wheels which mesh with annular wheels P and Q and the sunwheels X and Y. The sun wheel X is a part of Q. Wheels Y and Z are fixed to the shaft I. Z engages with a planet wheel carried on Q and this planet wheel engages the fixed annular wheel R. The numbers of teeth on the wheels are :P = 114, Q = 120, R = 120, X = 36, Y = 24 and Z = 30. The driving shaft I makes 1500 r.p.m. clockwise looking from our right and the input at I is 7.5 kW. a. Find the speed and direction of rotation of the driven shaft O and the wheel P.b. Find the torque tending to rotate the fixed wheel R.
Figure shows an alicyclic gear train with the following details:A has 40 teeth external (fixed gear) ; B has 80 teeth internal ; C - D is a compound wheel having 20 and 50 teeth (external) respectively, E-F is a compound wheel having 20 and 40 teeth (external) respectively, and G has 90 teeth (external). The arm runs at 100 r.p.m. in clockwise direction. Determine the speeds for gears C, E, and B.
The lathe machine in the Central University of Technology mechanical workshop uses epicyclic gear train in Figure 1 to operate. Plate gear C of this gear system are carried on the arm A and free to rotate. The pitch circle diameter of the internally toothed ring gear D is to be 214 mm and the module 4 mm. When the ring gear D is stationary, the arm A, which carries three planet wheels C of equal size, is to make one revolution in the same direction as the sun wheel B for every five revolution of the driving spindle carrying the sunwheel B. 1.1)Calculate the number of teeth of the ring gear D. 1.2)State an equation that relates the number of teeth of gear D, B and C. 1.3)Use the table method to calculate the number of teeth of gear B. 1.5)Calculate the number of teeth for gear C.
Question 1 A pickup truck is driving at a speed of 100 km/h on a leveled road. This truck has4 wheels of the same diameter of 400 mm and drives at a gear ratio of 5 to 1 if its gearbox 5th gear is selected. The gear’s teeth are of involute form with a module of 8 mm, an addendum is double the module, and the pressure angle is equal to 20°. 1(a). If the driving shaft of the front wheels of the truck is connected to the output shaft of the gearbox, determine the number of teeth on the pinion to avoid interference and the corresponding number of teeth on the gear wheel. 1(b) Calculate the gear maximum velocity of sliding.
A pair of spur gears with module 5 mm and a centre distance of 450 mm is used for a speed reduction of 5:1 find the number of teeth on pinion?
Two parallel shafts have an angular velocity ratio of 4 to 1 are connected by gears, the largest of which has 40 teeth. Find the number of teeth of smaller gear.