Run-in and final inspection of gear pumps and gear motors
The two independently operating test stations are used for engine run-in and for recording the following functional parameters:
- Pump pressure: 0 – 350 bar
- Pump circuit flow rate: 0 – 150 l/min
- Flow rate during motor testing: 0 – 150 l/min
- Leakage: 0 – 5 l/min
- Torque: 0 – 200 Nm
- Oil temperature: 0 – 80 °C
- Pressure pulsation: acoustic measurement
A major innovation is the option to test engines or pumps at a single test station. The operator has great flexibility in responding to production batches of varying sizes during final testing. The test specimens are manually flanged to the spindles and connected to the pressure lines via quick-release couplings. Control of the test stations in manual or automatic mode is carried out via "on-site" operator terminals with IPC/TFT.
The master control station oversees the test stations and is used to create and edit test programs and correspondence tables. It connects via Ethernet with the IPCs at the test stations. The power electronics of the hydraulic unit, the drives and the pumps are controlled by a Siemens SIMATIC control type S7-300.
The test bench features a soundproof steel enclosure, sliding doors and an oil pan, as well as a walk-on platform above the test stations for the hydraulic power unit, resulting in a very compact design. For service and maintenance, remote access to the PLC control system is available via ISDN and access to the PC is available via “pcAnywhere.”
