Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
10th Edition
ISBN: 9780073398204
Author: Richard G Budynas, Keith J Nisbett
Publisher: McGraw-Hill Education
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Chapter 13, Problem 39P
(a)
To determine
The minimum number of teeth that can be used on gear
(b)
To determine
The module required to achieve the given pitch diameter.
(c)
To determine
The force
The force
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Students have asked these similar questions
The figure shows a schematic representation of a gear system. The gears are meshed with one
another and can therefore not slip. The ring gear R is fixed, i.e. wR = 0. Gear A has an inner hub
with radius rA(inner) = 0.3 m which is fixed to the rest of the gear, having a radius of FAlouter) = 0.8
m, and moves together as a unit. Gear A is in mesh with gear B which has a diameter of de = 1.5
m. Gear B has a clockwise angular velocity of wg = 2.1 rad/s. Determine the angular speed of gear
A.
B
TA(outer
R
(b)
Solve the base pitch, centre distance, whole depth and contact ratio of a gear with
the given parameters: Pa= 6, 20 degree pressure angle, 19-tooth pinion is meshed
with a 77-tooth gear.
1. honano aean
--. . -a..k hooi sohuch
(c)
Solve the contact ratio of a gear when the base pitch, P, is the same length of action,
Z in Question Q2(b).
[Selesaikan nisbah sentuh gear apabila jarak benang asas, Ps adalah sama Panjang Tindakan, Z
dalam Soalan Q2(b).]
If this gear (Q2(b)) is a one of the component needed for designing a compound
gear train with ratio at 150:1, design the gear.
[Jika gear ini adalah salah satu komponen yang akan digunakan untuk merekabentuk 'train'
kompaun gear pada nisbah 150:1, rekabentuk gear ini.
(d)
A shaft carrying gear “A" rotates at 1750 rpm clockwise. What is the rotational speed and
rotational direction of the output gear "E"? (Refer to the figure below).
Input
Shaft 1
NA = 20
Only pitch
circles of
gears shown
BNg= 70
(A)
(B)
(C)
(D)
(E)
Nc = 18
166.7 rpm, CW
Shaft 2
166.7 rpm, CCW
203.7 rpm, CW
DND 22
203.7 rpm, CCW
Shaft 3
E
409.1 rpm, CCW
Note: Gear D is
Ng= 54
E
an idier
Shaft 4
Output
Chapter 13 Solutions
Shigley's Mechanical Engineering Design (McGraw-Hill Series in Mechanical Engineering)
Ch. 13 - A 17-tooth spur pinion has a diametral pitch of 8...Ch. 13 - A 15-tooth spur pinion has a module of 3 mm and...Ch. 13 - A spur gearset has a module of 6 mm and a velocity...Ch. 13 - A 21-tooth spur pinion mates with a 28-tooth gear....Ch. 13 - A 20 straight-tooth bevel pinion having 14 teeth...Ch. 13 - A parallel helical gearset uses a 20-tooth pinion...Ch. 13 - A parallel helical gearset consists of a 19-tooth...Ch. 13 - To avoid the problem of interference in a pair of...Ch. 13 - Prob. 9PCh. 13 - Prob. 10P
Ch. 13 - Prob. 11PCh. 13 - Prob. 12PCh. 13 - Prob. 13PCh. 13 - Prob. 14PCh. 13 - A parallel-shaft gearset consists of an 18-tooth...Ch. 13 - The double-reduction helical gearset shown in the...Ch. 13 - Shaft a in the figure rotates at 600 rev/min in...Ch. 13 - The mechanism train shown consists of an...Ch. 13 - The figure shows a gear train consisting of a pair...Ch. 13 - A compound reverted gear trains are to be designed...Ch. 13 - Prob. 21PCh. 13 - Prob. 22PCh. 13 - Prob. 23PCh. 13 - A gearbox is to be designed with a compound...Ch. 13 - The tooth numbers for the automotive differential...Ch. 13 - Prob. 26PCh. 13 - In the reverted planetary train illustrated, find...Ch. 13 - Prob. 28PCh. 13 - Tooth numbers for the gear train shown in the...Ch. 13 - The tooth numbers for the gear train illustrated...Ch. 13 - Shaft a in the figure has a power input of 75 kW...Ch. 13 - The 24T 6-pitch 20 pinion 2 shown in the figure...Ch. 13 - The gears shown in the figure have a module of 12...Ch. 13 - The figure shows a pair of shaft-mounted spur...Ch. 13 - Prob. 35PCh. 13 - Prob. 36PCh. 13 - A speed-reducer gearbox containing a compound...Ch. 13 - For the countershaft in Prob. 3-72, p. 152, assume...Ch. 13 - Prob. 39PCh. 13 - Prob. 40PCh. 13 - Prob. 41PCh. 13 - Prob. 42PCh. 13 - The figure shows a 16T 20 straight bevel pinion...Ch. 13 - The figure shows a 10 diametral pitch 18-tooth 20...Ch. 13 - Prob. 45PCh. 13 - The gears shown in the figure have a normal...Ch. 13 - Prob. 47PCh. 13 - Prob. 48PCh. 13 - Prob. 49PCh. 13 - The figure shows a double-reduction helical...Ch. 13 - A right-hand single-tooth hardened-steel (hardness...Ch. 13 - The hub diameter and projection for the gear of...Ch. 13 - A 2-tooth left-hand worm transmits 34 hp at 600...
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