Uniaxial

Multi-axis

Torsion machines

Component test

Breathing simulator

Pulleys & bearings

Universal joints

Limb machines

Concrete sleeper 1

Concrete sleeper 2

Six axis

Resonant HCF

Servo-hydraulic

Servo-pneumatic

Steering column

Second user

Servo-control

Data acquisition

Hydraulics

Specimen fixing

Environmental

Displacement

Gas flow

Bespoke machines

Strain gauge

Calibration

Electronic assembly

Actuators

I/O cards

Quality

• rotational endurance testing
• bearing seal efficiency.

• A flat-topped table mounting 2 electric servo motors and an environmental chamber surrounding the parts under test.
• Recirculating water-salt-sand spray generation system (mounted under the table).
• Electrical cabinet housing 2 vector drives, main rig isolator, fusing and 24 volts control relays (mounted under the table).
• Control cabinet with computer and printer.

• 22mm ground steel top 1.8m x 0.8m, 0.9m high, with height-adjustable anti-vibration mounts.
  

• 600mm x 600mm x 2 metre, 19inch cabinet housing RISC PC (233 megahertz RISC processor, 1.2gb hard disc) and interface cards, electronic control rack and drives control panel.
• Colour inkjet printer for hard copies.
  

• Maximum torque capability of ±100 Nm
• Maximum frequency 0.8 hertz for a rotation ± 720° from 0° (total 2880°).
  

• Rotational endurance.
• Fatigue Testing.
• Backlash testing (with optional LVDTs).
  

• The two motors are controlled through Eurotherm 620 Vector drives. These Vector drives are 4-quadrant controllers allowing the power generated in the braking motor to be regenerated onto a common DC bus and circulated back to the input motor, therefore requiring only system losses to be drawn from the mains supply. This has the benefit of significant energy cost savings and minimises heat generation within the test laboratory.
• The rig is capable of testing either one or two universal joint/shaft units mounted horizontally at resolved angles of 0° up to 40° maximum.
• The driving and braking motors lie on parallel centre lines, as illustrated below.

• The drive motor moves horizontally in an axis perpendicular to the parallel centre line of the two motors.
• The position of the braking motor is fixed. This arrangement enables the different lengths of customer components and installed angles to be accommodated. The output shafts of the drive and brake motors are fitted with bosses providing four M8 tapped holes on a 44.45mm pcd and a counterbore to maintain concentricity of component-specific adaptors (component adaptors are not included as standard).

• Insulated stainless steel enclosure with removable lid.
• The shaft from the fixed braking motor passes through the wall of the stainless steel tank with a lip seal to protect the braking motor and torque instrumentation from heat and water/salt/sand spray.
• The shaft from the movable driving motor passes through a slot in the side of the stainless steel tank with provision to close off the unused areas of the slot.
• One nozzle for each universal joint directs the water/salt/sand spray. The water/particle solution drains to a reservoir and recirculating pump situated under the table (see over).
• Heat is generated by a hot-air heat source mounted locally to the environmental chamber without recirculation, operating at temperatures from ambient up to 200°C.
• Water/salt/sand spray is delivered at ambient temperature.

• The rig is supplied ready to connect to a 415 volt AC 3 phase isolator, rated at 30 amps.

• There are 2 spare analogue input channels for the connection of external instrumentation.
• There are 2 spare analogue input channels for the connection of optional backlash (radial clearance) measurement equipment

• Documentation is provided in English.