Kategorie: Test bench technology

Like all Hense rotary vane motors, rotary vane motors in the HSS series are designed according to the rotary vane principle. The drive shaft has axial and radial plain bearings in coated bushes. The coating used is tribologically optimized and ensures low wear. Sufficient lubrication of the bearing points is ensured by the supplied hydraulic oil. To reduce the internal friction of the motor, the hydraulic separation of the working chambers in this series is partly achieved by means of pressure and viscosity-dependent throttle sections.

HSS motors are ideal for generating oscillating swivel movements in the frequency range with small angular amplitudes in controlled systems. The HSS series is therefore recommended for use whenever semi-dynamic torsion tests need to be carried out reliably and cost-effectively.

Servo-hydraulic hydraulic oscillator
In conjunction with other high-quality components, such as servo valves, pulsation accumulators and high-resolution angle measurement systems, the hydraulic oscillator is designed to generate alternating torsional loads.

We offer customized solutions for a wide range of applications. Our qualified team will be happy to advise you on design and realization.

The output shaft of the HSH swivel motors has radial and axial hydrostatic bearings. Here, radially and axially arranged bearing pockets are supplied with pressurized oil via a separate pressure connection. As a result, the output shaft is centered radially and axially between liquid cushions and all metallic contact surfaces are permanently separated from each other by a thin liquid film. This eliminates wear caused by metallic friction in any operating state, even at zero speed compared to hydrodynamic plain bearings.

In conjunction with highly dynamic control valves and angle of rotation sensors, these actuators are preferably used in controlled systems in which disturbance variables such as friction and the stick-slip effect must be reduced to a minimum. Furthermore, due to the lack of internal seals, they are ideal for test series with large numbers of load cycles where an interruption, e.g. due to the replacement of internal seals, is not permitted.

The HSH series is therefore predestined for use as a servo-hydraulic hydraulic transducer and as a hydraulic tensioning motor in tensioning test benches.

Tensioning teststand
The hydraulic tensioning motor is integrated into a closed tensioning circuit with power feedback. The swivel motor rotates and is supplied with energy via a multi-path rotary feedthrough, while it applies a static, quasi-static or dynamic torsional moment to the rotating strands in a controlled manner.

We offer customized solutions for a wide range of applications. Our qualified team will be happy to advise you on design and implementation.