Siemens Simovert Masterdrives Compendium page 906

Engineering Information
Lifting drive
11-6
Motor
Fig. 11-3 Lifting drive
♦ n α
, , J
load b v load , load
♦ Lifting force [ N ]
= ⋅
F m g
H
♦ Lifting torque [ Nm ]
D
= ⋅
M F
H H
2
♦ Lifting torque at the drive wheel/pinion [ Nm ]
=
M ( M
load up b v load ,
=
M ( M
Load down b v load ,
η
Mech. efficiency of the lifting drive
mech
M has to be applied with the correct sign (acceleration up,
b v load ,
deceleration down = + , deceleration up, acceleration
down = - )
If the deceleration is equal to the acceleration, the load torque is at a
maximum during the upwards acceleration phase.
n
Load
M
Load
Gear
Toothed belt
, M See "Horizontal travel drive"
b v load ,
1
+ ⋅
M )
H +
Sign M ( M
η
b v load ,
mech
Sign M (
+ ⋅ η
b v load ,
M )
H
mech
6SE7087-6QX70 (Version AE)
Compendium Motion Control
06.2005
Guide
D
v, a
m
)
H
+
M )
H
Siemens AG
SIMOVERT MASTERDRIVES