TKW+1
=v
#1
:n
N
:s
b
:c
Number of teeth on large sprocket
#2
:n
n
:s
b
:c
Number of teeth on small sprocket
#3
:n
RPMn
:s
b
:u
rev/min
:d
rev/min
:c
RPM of small sprocket
#4
:n
RPMN
:s
b
:u
rev/min
:d
rev/min
:c
RPM of large sprocket
#5
:n
i
:s
b
:c
Speed ratio
#6
:n
D
:s
b
:u
in
:d
in
:c
Diameter of large sprocket (inches)
#7
:n
Dmm
:s
b
:u
mm
:d
mm
:c
Diameter of large sprocket (mm)
#8
:n
d
:s
b
:u
in
:d
in
:c
Diameter of small sprocket (inches)
#9
:n
dmm
:s
b
:u
mm
:d
mm
:c
Diameter of small sprocket (mm)
#10
:n
L
:s
b
:u
pitches
:d
pitches
:c
Length of chain in # of pitches
#11
:n
C
:s
b
:u
in
:d
in
:c
Center distance between sprockets
#12
:n
warn
:s
b
:c
Center distance warning message (output only)
#13
:n
p
:s
b
:u
in
:d
in
:c
Chain pitch
#14
:n
wrap_angle
:s
b
:u
degrees
:d
degrees
:c
Angle of wrap around smaller sprocket
#15
:n
V
:s
b
:u
ft/s
:d
ft/s
:c
Chain velocity (ft/second)
#16
:n
Vms
:s
b
:u
m/s
:d
m/s
:c
Chain velocity (meters/second)
#17
:n
num_strands
:s
b
:c
Number of strands in chain (1 to 4)
#18
:n
table_hp
:s
b
:u
hp
:d
hp
:c
Compare this to table 14 hp
#19
:n
multi_strand_factor
:s
b
:c
multi strand factor (1,1.7,2.5,3.3)
#20
:n
input_hp
:s
b
:c
input horsepower
#21
:n
service_factor
:s
b
:c
service factor
=u
=l
=f
=r
#1
:r
L=((N+n)/2)+((2*C)/p)+((p*(N-n)^2)/(39.5*C))
#2
:r
d=p/(sind(180/n))
#3
:r
D=p/(sind(180/N))
#4
:r
wrap_angle=(pi()-((D-d)/C))*(180/pi())
#5
:r
i=N/n
#6
:r
i=RPMn/RPMN
#7
:r
if C<=.5*(D+d) then warn='too_short
#8
:r
if C>=80*p then warn='too_long
#9
:r
if and(C<80*p,C>.5*(D+d)) then warn='OK
#10
:r
Dmm=D*25.4
#11
:r
dmm=d*25.4
#12
:r
Vms=(pi()*dmm*RPMn*.001)/180
#13
:r
V=Vms/.3048
#14
:r
table_hp=(input_hp*service_factor)/multi_strand_factor
#15
:r
if num_strands=1 then multi_strand_factor = 1
#16
:r
if num_strands=2 then multi_strand_factor = 1.7
#17
:r
if num_strands=3 then multi_strand_factor = 2.5
#18
:r
if num_strands=4 then multi_strand_factor = 3.3
=p
=t
=n
=c
=g
#1
:c
.000001
:i
10
:t
1
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%Or,f,0,1,0,0,4
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%Xl,f,0,0,0,2,0,164,324,36,36,0,0,0,0,0,2,0,0,0,0
%Xp,f,0,0,0,2,0,236,324,36,36,0,0,0,0,0,2,0,0,0,0
%Xt,f,0,0,0,2,0,308,324,36,36,0,0,0,0,0,2,0,0,0,0
%Xn,f,0,0,0,2,0,380,324,36,36,0,0,0,0,0,2,0,0,0,0
%Xc,f,0,0,0,2,0,452,324,36,36,0,0,0,0,0,2,0,0,0,0
%Xr,f,0,1,0,1,4,0,72,644,324,0,0,0,0,0,1,0,0,0,0
%X ,t,7,0,0,2,0,72,72,520,276,1,0,13,0,0,1,0,0,0,0
%Xv,f,17,5,0,1,9,-6,-25,652,427,0,0,0,0,0,3,0,0,0,0