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Installation and Maintenance Manual, Compact CBP
1.3 Functional description
Fig. 1 The COMPACT CBP 140
Hägglunds hydraulic industrial motor COM-
PACT
CBP is of the radial-piston type with
a rotating cylinder block/hollow shaft and a
stationary housing. The cylinder block is moun-
ted in fixed roller bearings in the housing. An
even number of pistons are radially located in
bores inside the cylinder block, and two valve
plate directs the incoming and outgoing oil to
and from the working pistons. Each piston is
working against a cam roller.
When the hydraulic pressure is acting on the
pistons, the cam rollers are pushed against the
slope on the cam ring that is rigidly connected
to the housing, thereby producing a torque.The
cam rollers transfer the reaction force to the
piston which are guided in the rotating cylinder
block. Rotation therefore occurs, and the torque
available is proportional to the pressure in the
system.
Oil main lines are connected to ports A and C
in the connection blocks and drain lines to ports
D1, D, D or D4
in the motor housing.
The motor is connected to the shaft of the
driven machine through the hollow shaft of
the cylinder block.The torque is transmitted
by splines.
Valid patents
US 45110, US 00597995A, SE 456517,
EP 010915, JP 816704, GB
18569, EP No 05447.
Quality
To assure our quality we maintain a Quality
Assurance system, certified to standard ISO
9001, EN 9001 and BS 5750; Part 1.
General
1. Cam ring
. Cam roller
. Piston
4. Cylinder block with splines
5. Flange
6. Cylindrical roller bearing
7. Connection block
8. Valve plate
A = Inlet or outlet port »A«
C = Inlet or outlet port »C«
D = Drain port
F4 = Flushing
1
4
5
7
8
D
6
A, C
F4
