Delivery contents
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RE 15302-WA/05.2019, Hägglunds CB, Installation and maintenance manual ,
Bosch Rexroth Mellansel AB
4 Delivery contents
Included in the delivery contents are Hägglunds CB as per order confirmation
5 About this product
5.1 Performance description
The Hägglunds CB is a
radial piston hydraulic motor that converts hydraulic flow into
mechanical rotation. Refer to product-specific data sheet and the order confirmation
for technical data, operating conditions and operating limits of the specific CB motor.
5.2 Product description
The Hägglunds CB is a radial piston hydraulic motor with a rotating cylinder block
shaft and a stationary housing. The cylinder block is mounted in fixed roller bearings
in the housing. An even number of pistons are radially located in bores inside the
cylinder block, and the distributor 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 in the connection block and drain lines to
ports in the motor housing.
The motor is connected to the shaft of the driven machine through the cylinder
block. The torque is transmitted by splines or shrink disc coupling.
1
3
4
5
6
7
8
11
9
10
1. Cam ring
2. Cam roller
3. Piston
4. Shrink disk
5.
Cylinder block/hollow
shaft
6.
Cylinder block / spline
7. Housing cover
8.
Cylindrical roller bearing
9. Connection housing
10. Distributor
11. Combined axial and
radial bearing
12. Wear ring
a
Fig. 1: The CB radial piston motor
Shaft side
of the motor
Connection side
of the motor
12
12
2
