B2410·
B2710·
82910 WSM, 12271
[4]
DIFFERENTIAL GEAR SYSTEM
(1) Differential Function
3 TRANSMISSION
12010F30140
(1)
Spiral Bevel Pinion
(3)
Differential Side Gear
(2)
Differential Pinion
(4)
Spiral Bevel Gear
1. During Straight Running
Rotation of the spiral begvel pinion (1) is transmitted
to the spiral bevel gear (4) and differential case (8).
When road resistance to the right and left wheels are
equal, differential pinions (2), (6) and differential side
gears (3),
(7)
are all rotate as a unit. Both rear axles
received equal input, and both wheels turn at the same
speed, allowing the tractor to go straight ahead.
At this time, differential pinions (2), (6) do not rotate
around the differential pinion shaft (5).
(5)
Differential Pinion Shaft
(7)
Differential Side Gear
(6)
Differential Pinion
(8)
Differential Case
2. During Turning
When the tractor turns, the road resistance to the
inside tire increases (as if braking is applied to that side
only).
In
other words, if one of tires slows down,
revolution difference
is
generated
in
the differential side
gears (3), (7). When rotation of one differential side gear
becomes lower than the other, differential pinions
(2),
(6)
begin rotating around differential pinion shaft (5). The
other differential side gear is increased
in
speed by the
speed increment of differential pinion shaft (5). This
means that rotation of one rear axle
is
slowed down and
that of the other rear axle is increased. Thus, the tractor
turn smoothly without power loss.
The combined number of revolutions of the right and
left differential side gears
is
always twice that of the
spiral bevel gear (4). When spiral bevel gear revolution
is 100 rpm, and if one of the differential side gears stops
moving, the revolution of the other differential side gear
becomes 200 rpm and if one rotates at 50 rpm, the other
rotates at 150 rpm.
12010M30160
3-M17
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