FZG High-Speed Gear Test Rig

The high-speed FZG test rig is based on the standard FZG test rig. This is also a test machine with a power circulation system. The drive gearbox and the test gearbox are connected via a functional shaft train and a torsion shaft. A clamping coupling is located on the functional shaft train to introduce the load. Torque is measured on the torsion shaft. The test rig is driven by a speed-controlled asynchronous motor. The associated oil unit for spray lubrication features a cooling and heating system that keeps the test gearbox oil at the desired temperature. The temperature of the gear oil can be preset and monitored. The FZG high-speed gear test rig was developed jointly by Strama-MPS and the FZG at the Technical University of Munich and continues to be further developed in ongoing collaboration. A target speed of 22,500 rpm at up to 600 Nm on the pinion can be achieved.

• Max. speed at pinion: 22,500 rpm
• Max. torque: 600 Nm
• Max. power in the clamping circuit:
  • Current: 754 kW (18,000 rpm & 400 Nm at pinion)
  • Target: 1,413 kW (22,000 rpm & 600 Nm at pinion)
• Gear ratio: 1.5
• Center distance: 91.5 mm
• Shaft Ø test gearbox: standard Ø30 mm
• Oil temperature drive gearbox: water-cooled
  • Efficiency: 60°C…140°C
  • Scuffing test: dependent on power in the clamping circuit
• Oil temperature test gearbox: 60°C…140°C (controlled, cooled, and heated)
• Holding temperature with spray lubrication: 60°…140°C
• Oil flow rate: 0.3–5 l/min
• Total space requirement (L x W x H):
  • Test rig: approx. 2.5m x 0.9m x 1.7m
  • Oil unit: approx. 1.4m x 0.95m x 2.2m
• Weight:
  • Test rig: approx. 3 t
  • Oil unit: approx. 720 kg