9.10
Calculation of tripping speed
DTS
= diameter of the traction sheave (table contains typical traction sheave diameters, other diameters
can be recalculated linear)
Nbn
= maximum nominal speed of the brake rotor
Nbmax
= maximum trip torque of the brake rotor
Vn
= maximum rated speed of the elevator
Vmax
= maximum tripping speed of the elevator
Type
DTS
Nbn
Nbmax
Vn
(1:1)
Vmax
(1:1)
Vn
(2:1)
Vmax
(2:1)
[mm]
[min
-1
]
[min
-1
]
[m/s]
[m/s]
[m/s]
[m/s]
SM250.45B
320
400
460
6.70
7.71
3.35
3.85
SM250.45B
400
400
460
8.38
9.63
4.19
4.82
SM250.45B
500
400
460
10.47
12.04
5.24
6.02
SM250.45B
520
400
460
10.89
12.52
5.45
6.26
SM250.45B
600
400
460
12.57
14.45
6.28
7.23
SM250.45B
640
400
460
13.40
15.41
6.70
7.71
9.11
Calculation proof
- Translation -
(english)
A-BN17_
08-GB
1817
Index
002
Manufacturer:
ZIEHL-ABEGG SE
Heinz-Ziehl-Stra
ß
e
74653 K
ü
nzelsau
Germany
Con
fi
rmation concerning the examination of traction sheave shaft calculation including shaft-
hub-connections.
Type of the gearless
maschine:
ZAtop SM250.45B
Object examined:
Calculation of traction sheave shaft including shaft-hub-connections
by IFF ENGINEERING & CONSULTING GmbH No. 6.1.528.3 dated
24.08.2016
Translation of the original operating instructions
ZAtop SM250.45B
Enclosure
A-TBA17_04-GB 2023/28 Index 004 Part.-No. 01013409-GB (EU-BD 760/1)
79/84
