Replacement
The main shaft with ball bearings is glued into the vibratory tube. The gluing cannot be
detached in the field. A defective vibratory assembly has to be exchanged as an entity.
Incremental encoders
(2 different applications)
1) At the main shaft, needed with all balancers
2) At the big pulley (power-clamping device only).
Drive systems
(2 alternatives)
1) Hand
drive
2) Motor
drive.
Brakes
Brakes for decelerating
the main shaft after unbalance measurement (3 alternatives):
1) Braking by reversing the torque of the motor
2) Big electromagnetic brake acting on the main shaft (power-clamp only)
3) Shaft brake band for hand drive.
Main shaft locks
(3 alternatives):
1) Mechanical foot operated double jaw brake acting on motor pulley
1) Small electromagnetic brake acting on the motor shaft
2) Mechanical
foot
operated
single lever brake acting on the main shaft (hand drive only)
Position brakes
for the "sticky on top" function (3 alternatives):
1) Small electromagnetic brake acting on the motor shaft
2) Big electromagnetic brake acting on the main shaft (power-clamp only)
3) DC current supplied by AC-Controller to motor windings.
Power-clamping device
Rims with a centre bore of more than 40 mm can be clamped comfortable, quickly and
reliably to the main shaft.
Clamping power is provided by the drive motor, thus no further energy source is needed.
15.1.1 Vibratory assembly for hand drive with fixed adaptor
Snap-on
P/N EAA0260D01A (used with
b9000
and EEWB305A)
A stub shaft of 28,5 or 40-mm diameter can be fastened to the main shaft. There is sufficient
length of shaft extending to the left of the vibratory assembly, to fit a crank at the left-hand
side of the cabinet.
Decelerating the main shaft after measurement is by the shaft brake band, described under
15.5a.
For the main shaft lock, the foot operated single lever brake, described under 15.5.2a, is used.
15.1.2 Vibratory assembly for motor drive with fixed adaptor
Snap-on
P/N EAA0260D51A (used with
b9450, b9460
and GS S1200)
A stub shaft of 28,5 or 40-mm diameter can be fastened to the main shaft. Left-hand tapered
shaft end with centre thread, for fastening the big pulley.
15.1.3 Vibratory assembly for motor drive with tapered shaft
Snap-on
P/N EAA0260D02A (used with
b9750
), HOFFMANN Mat-Nr. 6418868
used with HOFMANN
geodyna 980
,
4300
und
4800
.
Utilising tapered main shaft for various adaptors as customary with HOFMANN balancers.
The shaft lock is of the mechanical design described under chapter 15.5.2.2.
Seite 15 von 99
Summary of Contents for Snap-on Y2k
Page 1: ...SERVICE of the Y2k balancing platform Seite 1 von 99 ...
Page 2: ...The vibratory assemblies of the Y2k balancing platform L R L R S S M Seite 2 von 99 ...
Page 32: ......
Page 35: ...Seite 35 von 99 ...
Page 66: ...Seite 66 von 99 Figure 1 JBEG B9000 B9450 User Interface ...
Page 67: ...Seite 67 von 99 Figure 2 JBEG B9460 User Interface ...