Kategorie: Test bench technology

Our rotary actuator from the HSS series can be used for any installation position. Like all Hense rotary actuators, this rotary actuator is 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 internal motor friction, 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 implemented 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.

Our HSH series rotary actuator can be used in any installation position. The output shaft of the rotary actuator has radial and axial hydrostatic bearings. Radial and axial bearing pockets are supplied with pressurized oil via a separate pressure connection. As a result, the output shaft is centered radially and axially between fluid cushions and all metallic contact surfaces are permanently separated from each other by a thin film of fluid. This eliminates wear due to 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 transducers, these actuators are preferably used in controlled systems where disturbance variables such as internal 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 load cycles where 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.

Tensioningtestbench
The hydraulic tensioning motor is integrated into a closed tensioning circuit with power feedback. The rotary actuator 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.