Configuration Manual AC Induction Motors 1PH4 - Siemens ...

Motor Components
3.4 Gearboxes
3.4.2 Gearbox design
3
3-68
1
2
4
5
19
20
21
17 18
16
Fig. 3-5 Gearbox design for 1PH4, SH 100–160
Belt pulley
9
15
6
7
8
10 11
14 12
For selector gearboxes, the following applies:
Selector position I: i1 = 4
Selector position II: i2 = 1
13
1 Drive hub
2 Adapter plate
3 Radial shaft sealing ring
4 Hub bearings
5 Gearbox housing
6 Sun wheel
7 Hollow wheel
8 Hollow wheel bearings
9 Bearing housing
10 Drive–out bearings
11 Drive–out bearings
12 Drive shaft
13 Radial shaft sealing ring
14 Planetary gear support
15 Axial bearings with cup
springs
16 Sleeve
17 Selector fork
18 Brake disk
19 Solenoid
20 Selector shaft
21 Connecting plate
Both gearbox ratios are electrically selected and the setting is monitored using limit
switches.
The gearbox output shaft lies coaxially to the motor shaft.
Torsional play (measured at the gearbox output shaft):
Standard: 30 angular minutes (for SH 100–160)
For milling and machining with interrupted cut, the following special versions are
available on request for SH 100–160:
� Lower play: max. 20’
� Lower play for increased requirements: max. 15’
� The belt pulley should be in the form of a cup wheel.
� The gearbox output shaft has a flange with outer centering and tapped holes to
retain the belt pulley.
� The complete drive should be designed to be as stiff as possible using large
belt cross–sections. This has a positive impact on the smooth running properties
of the drive.
© Siemens AG 2003 – 2006 All rights reserved
AC Induction Motors, 1PH4 (APH4) – 04.06 Edition