Belarus 1523, Руководство по эксплуатации

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BELARUS-1523/1523 В /1523.3 /1523В.3 Construction and Operation
110
Differential
1 – differential casing; 2 – driving plate; 3 – driven plate; 4 – pressure cup; 5 – satellite shaft; 6 – satellite;
7 – differential cover; 8 – axle-shaft gear; 9 - taper roller bearing.
The differential is self-locking,
with increased friction. The casing (1)
and cover (7) of the differential bolted
together contain the two pairs of satel-
lites (6) on floating pins (5), axle-shaft
gears (8), pressure cups (4) as well as
driving (2) and driven (3) friction disks.
The self-locking differential connects
automatically both the axle shafts and
excludes separate skidding of the
wheels that increases the tractive force
of the front wheels. The locking takes
place when the front axle is engaged. At
that moment, the satellite shafts turn
under load and move over the bevel
slots in the casing and cover of the dif-
ferential, respectively, by the value of
the clearances between the friction
disks. From the pins, the force is trans-
mitted to the satellites which, in turn,
transmit it through their beads to the
cups, and the latter press the friction
disks against one another until they rest
against the walls of the casing and cover
of the differential. The driving plates
having the outer teeth are in mesh with
the teeth of the casing and cover of the
differential and the driven plates
(through their inner teeth) – with the axle
shaft gears. The friction force of the
pressed together disks unites the axle-
shaft gears and casing with the cover of
the differential into a whole while locking
in such a way the differential.
When the front axle is engaged and
the external forces exceed the friction
forces in the friction disks during the
turning of the tractor, the friction disks
will skid.
The differential is installed in the two
taper roller bearings in the housings of
the front axle beam. The bearings of the
differential are adjusted by means of the
shims 15 (see Figure “FDA”).