Bosch Rexroth WS290, Руководство по эксплуатации

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Hydraulics training system WS290 | RE 00225-B/12.15 Bosch Rexroth AG 33/104
Information on this product
A three-phase current motor drives two vane pumps with zero stroke control
which suck in the hydraulic oil from the oil tank and generate the required system
pressure p. The vane pumps have been set at the factory to a zero stroke
pressure of 50 bar.
The hose lines serve as connection between the individual components of the
hydraulic power unit.
The sealed pressure relief valves secure the pump circuit with 70 bar.
The check valves block the flow in the one direction and open against a spring
in the other direction. In this connection, the spring force corresponds to a
certain pressure.
During operation, the oil flows via the check valves to the P/T distributor.
However, it blocks the flow from the P/T distributor to the vane pump.
The return flow of the oil from the P/T distributors of the hydraulic power unit to
the oil tank is effected via the "T" ports and the inline filter (3.0) with optical
clogging indicator.
The filter with bypass circuit is used to filter out smallest contamination from the
hydraulic oil. The filter consisting of the filter housing with a filter element (20 µm)
filters the hydraulic fluid to the tank.
If the filter element is contaminated and has to be exchanged, this is visually
displayed by the clogging indicator.
Via the coupling connectors of the P/T distributor, hose lines are connected with
the vane pump. The generated pressure p is available at port "P" of the P/T
distributor at the power unit. Via the threaded coupling of the P/T distributor, you
can e.g. connect a pressure gauge for the pressure measurement.
The voltage supply of the hydraulic power unit is effected via the control box at
the hydraulic power unit. The control box with protective motor switch is
connected to the control box at the base frame of the WS290 training system by
means of a coded connector.
The measuring glass mounted at the base frame is directly connected to the oil
tank by means of a return flow hose.
2. Motor-pump unit
2.0 Three-phase current motor
2.1 Vane pump
2.2/2.3/2.31/2.4/2.5/2.51 Hose line
2.32/2.52 Pressure relief valve
2.6/2.7 Check valve
3.0 Return flow filter
3.1 Clogging indicator optical
4.01 P/T manifold
4.1 Coupling connectors
4.21/4.22 Threaded coupling
Control box
consisting of 5.0
switch housing
and
5.2 power switch
6.0 Measuring glass