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Cams and follower problems
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7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 1/18
PROBLEMS ON CAMS
&FOLLOWERS
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
PREPARED BY
SAJITH. E & NIKHIL ASOK. N
ASSISTANT PROFESSOR
SCMS SCHOOL OF ENGINEERING & TECHNOLOGY
KARUKUTTY, ERNAKULAM
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 2/18
Given Daa!
Direction of rotation Clockwise
Follower type Knife Edge
Minimum Radius 35mm
Lift / troke !"mmRaise period #$"" %&niform
'elocity(
Dwell # 3""
Return period )"" %&niform'elocity(
Dwell $ #5""
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 3/18
D I S P L A
C E M E N T
FOLLOWER MOVES WITH UNIFORM
VELOCITY
ANGULAR DISPLACEMENT
* !"
mm
+
,
C
D
E
-
.
M
K
0
#
L
1
F
"2$ !3 5 )
)2#2 $2 32 !2 52"
4
DWELL "
#$$
%$"'$$
%R"($$
DWELL "
)$$
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 4/18
52
6 D * 3 " "
6 7 * # $ " "
+
R 3 5
7
,C
-
E
.
F
#
0
K
L
M
1
D
$3
!
5
)
"2
#2
$2
32
!2
)2
6R*)""
,ase Circle
Knife EdgeFollower
Cam 8ro9le
race 8oint
SCMS SCHOOL OF ENGINEERING &
TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 5/18
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 6/18
M
)21
6 R * ) " "
6 D * 3
" "
R # "
+,
C
E
.
F
D
- 0
K
L
7 R 3 5
6 7 * # $
" "
#$
3
!
5
)
"2#2
$2
32
!
2
52
,ase Circle
race 8oint
7:set Circle
Cam 8ro9le
Knife EdgeFollower
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 7/18
Given Daa!
Direction of rotation Clockwise
Follower type Roller
Minimum Radius $5mm
Lift 5"mmRoller Diameter $"mm
Raise period #$"" % M(
Dwell # 3""
Return period )"" % M(
Dwell $ #5""
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 8/18
4 D I S P L A C E
M E N T
FOLLOWER MOVES WITH SIMPLE HARMONIC
MOTION (SHM)
ANGULAR DISPLACEMENT
DWELL "
#$$
%$"'$$
%R"($$DWELL "
)$$
+
,
C
D
E
.F -
M
K
0
L
1
# "2$ !3 5 ) )2#2 $2 32 !2 52"
d
e
c
a
;
* 5"
mm
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 9/18
52
6 D * 3 " "
6 7 * # $ " "
+
R $ 5
7
,C
0
E
.
F
#
K
L
M
1
8
D
$3
!
5
)
"2
#2
$2
32
!2
)2
R35
6R*)""
,ase Circle
8rime Circle
Cam 8ro9le
8itc< Cur=e
Roller Follower
race 8oint
SCMS SCHOOL OF ENGINEERING &
TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 10/18
Given Daa!
Direction of rotation Clockwise
Follower type Roller
Minimum Radius $5mm
Lift 5"mmRoller Diameter $"mm
7:set #"mm
Raise period #$"" % M(
Dwell # 3""
Return period )"" % M(
Dwell $ #5""SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 11/18
)28
6 R * ) " "
6 D * 3
" "
R # "
+,
C
E
.
F
D
0K
L
M1
7 R 3 5
6 7 * # $
" "
R $ 5
#$
3
!
5
)
"2#2
$2
32
!
2
52
,ase Circle
8rime Circle
Roller Follower
race 8oint
7:set Circle
Cam 8ro9le
8itc< Cur=e
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 12/18
Given Daa!
Direction of rotation Clockwise
Follower type Flat Faced
Minimum Radius 35mm
Lift 5"mmRaise period #$"" % M(
Dwell # 3""
Return period )""
% M(Dwell $ #5""
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 13/18
+
,
52
6 D * 3 " "
6 7 * # $ " "
R 3 5
7
C
0
E
.
F
#
K
L
M
1
8
D
$3
!
5
)
"2
#2
$2
32
!2
)2
6R*)""
,ase Circle
Flat FacedFollower
Cam 8ro9le
race 8oint
SCMS SCHOOL OF ENGINEERING &
TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 14/18
Given Daa!
Direction of rotation Clockwise
Follower type Flat Faced
Minimum Radius 35mm
Lift 5"mm7:set #"mm
Raise period #$"" % M(
Dwell # 3""
Return period )"" % M(
Dwell $ #5""
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 15/18
Given Daa!
Direction of
rotation
Counter>Clockwise
Follower type Roller
Minimum
Radius
!" mm
Lift 3?@5 mm
Roller Radius $" mm
Raise period #$"" %uniform acceleration
and retardation (
Dwell # 3""
Return period )"" %uniform acceleration
and retardation (
Dwell $ #5""SCMS SCHOOL OF ENGINEERING &
TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 16/18
D I S P L A C E
M E N T
ANGULAR DISPLACEMENT
6" * #$"" 6R* )""DWELL "
#$$
DWELL "
)$$
* 3?@5 m
FOLLOWER MOVES WITH UNIFORM
ACCELERATION AND RETARDATION
# "2$ !3 5 ) )2#2 $2 32 !2 52"+
,
C
D
E
.
F -
M
K
0
L
1a
;
c
d
e
l
k
A
i
<
4
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 17/18
M
"2
)2
,
6R*)""
52
6 D * 3 " "
6 7 *
# $ "
"
+
R ! "
7
C
0
E
.
F
#
K
L
-
1
D$
3
!
5
)
#2
$2
32
!2
R ) "
,ase Circle
8rime Circle
Cam 8ro9le
8itc< Cur=e
RollerFollower
race 8oint
SCMS SCHOOL OF ENGINEERING &TECHNOLOGY
7/21/2019 Problems on Follower motion and cams
http://slidepdf.com/reader/full/problems-on-follower-motion-and-cams 18/18
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