BASF 6106 - Drive Mechanism

2.1.1.
DRIVE
MECHANISM
The
spindle is
rotated
at
300 rpm by
a
DC
drive
motor.
Rotation of the
spindle is
provided by
a
belt and
pulley. The
drive motor is
star-
ted
and stopped by the
interface
signal
MOTOR ON.
SPINDLE DRIVE HUI
DRIVE MOTOR
SPINDLE DRIVE
PULLEY
FIGURE DRIVE
MECHANISM
2.1.2.
SPINDLE
AND FRONT
DOOR
MECHANISM
The
main parts of this
mechanism are the drive
hub, the
centering cone, the centering cone
expander and
the front
door with pressure
arm
and
door latch,
(see Fig.
2
-
3
)
For
loading
a
disk the
mini disk is inserted
and the front
door
pressed. The pressure arm
moves down
,
the
centering cone
enters the
mini
disk.
Just
before
the
centering cone reaches
the
fully
down
position, the centering
cone
expander is
e=,
—
llfari
activated and
expands
the centering
cone which
grips the inner
diameter of the
mini
disk to
ensure correct
alignment. The
door latch
is
activated
and
holds the front
door in a
clo-
sed
position.
For unloading
a disk,
the
front
door
must be
pressed
again.
The
door
latch
opens
and the
pressure
arm
is
moved
upwards
by
a spring.
The centering
cone and
centering
cone
expander also
move
upwards and
disenganges
the mini
disk from
the
drive
hub.
CENTERING
CONE
EXPANDER
da]
P
1
[n
r
I
CENTERING
CONE
FRONT
DOOR
(opened)
FRONT
DOOR
(closed)
DRIVE
HUB
DOOR
LATCH
FIGURE 2
-
3 . SPINDLE
AND FRONT
DOOR
MECHANISM