Table of Contents
Advertisement
5�2�2 Functional description
Pump
Torque and rotational speed are applied to the drive shaft (1) by a drive motor.
The cylinder (10) is picked up and turned by the splines of the drive shaft.
With every revolution, the pistons (11) complete a stroke in the cylinder bores,
the size of which depends on the pitch of the cradle (13). The slipper pads (12)
are held on with the pistons and guided along the glide surface of the cradle by
the retaining plate (3). The inclined position of the cradle during a rotation causes
each piston to move over the bottom and top dead centers and back to its initial
position. During this sequence, hydraulic fluid is fed in and drained out through
the two control slots in the control plate (7) according to displacement.
On the suction side (9) hydraulic fluid flows into the piston chamber as the
piston recedes. At the same time, on the high-pressure side (6) the hydraulic fluid
is pushed out of the cylinder chamber into the hydraulic system by the pistons.
Control
The swivel angle of the cradle (13) is continuously adjustable. Adjusting the swivel
angle changes the piston stroke and, with it, the displacement. The swivel angle is
controlled hydraulically by means of the stroking piston. The cradle is mounted for
easy motion in swivel bearings. When pressurized, the cradle is held in balance by
the swiveling forces of the rotary group, which are generated by the eccentrically
mounted cradle and by the control pressure. When depressurized, the spring (2)
presses the swashplate to maximum swivel angle. Increasing the swivel angle
increases the displacement; reducing the angle reduces displacement accordingly.
Various control devices are available depending on requirements.
Information about this can be found in data sheet 92704.
About this product | A10VOH145 series 60
RE 92704-01-B/2022-12-07, Bosch Rexroth AG
19/56
Advertisement
Table of Contents
