1 symbols used, 7applications – Lenze DSD User Manual
Page 79
Lenze · Drive Solution Designer · Manual · DMS 4.2 EN · 12/2013 · TD23
79
7
Applications
7.3
Belt drive, rotating
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
7.3.3.1
Symbols used
Symbol
Description
Dimension unit
a
Acceleration, translatory
m/s
2
α
Acceleration, rotary
rad/s
2
d
Whl
Wheel diameter for the wheel-guided system
mm
d
Brg
Bearing diameter for the wheel-guided system
mm
d
Cog
Belt pulley diameter
mm
f
Lever arm of the rolling friction for the wheel-guided system
mm
F
μ
Friction force of the guiding system
N
F’
Specific travelling resistance of the application
N/kg
F
vs
Counterforce
N
F
sum
Total translatory force
N
F
Blt
Circumferential force at the toothed belt
N
F
prl,Blt
Preload force at the toothed belt
N
F
aux
Force of slide
N
F
rad
Radial force
N
F
ax
Axial force
N
g
Gravitational acceleration (g = 9.81 m/s
2
)
m/s
2
J
Cog
Moment of inertia of the belt pulley
kgm
2
J
aux
Moment of inertia of the deflection pulleys
kgm
2
l
Blt
Length of the toothed belt
m
m
L
Mass of the payload
kg
m
aux
Mass of the slide
kg
m
Blt
Mass of toothed belts
kg
m’
Blt
Specific mass of the belt per meter
kg/m
m
sum
Total mass of the application
kg
M
th,Blt
Constant torque loss
Nm
M
D
Torque at the drive
Nm
M
App
Required torque of the application
Nm
p
Cog
Selected toothed belt pitch
mm
s
Path, translatory
m
v
Speed, translatory
m/s
N
Cog
Number of teeth of the belt pulley
η
Blt
Transmission efficiency of the belt with initial stress and in the working
point
ϕ
Angle
rad
β
Angle of tilt
°
μ
Gdn
Coefficient of friction
• Wheel flange and lateral friction of the wheel-guided system
• Sliding friction of the linear guide
μ
Brg
Coefficient of friction for the wheel-guided system
ω
Angular velocity
rad/s