Hydraulic Motor Test Bench: Precision Validation for Performance & Quality
Der Hydraulic Motor Test Bench is a specialized platform designed to evaluate performance parameters, validate design specifications, and ensure the quality of hydraulic motors. It is widely applied in critical fields such as engineering machinery, Luft- und Raumfahrt, Marine, and industrial automation. We precisely measure essential metrics including torque, Geschwindigkeit, flow, Druck, Effizienz, and temperature rise.
System Architecture & Key Components
1. Hydraulic Power System (HPS)
The dedicated HPS provides the high-pressure oil source required to drive the DUT, ensuring stable and reliable testing:
- Includes an oil pump, oil tank, piping, and valve groups.
- Provides a continuous and high-pressure oil source.
2. Dynamic Load Device
Designed to apply precise, controllable dynamic loads to the hydraulic motor output shaft:
- Utilizes an Electric Dynamometer (AC Load).
- Supports **Energy Regenerative (Load Feedback)** modes, recycling power back into the grid, offering high energy efficiency and reduced heat dissipation.
- Achieves dynamic load regulation.
3. Measurement and Control System
The control hub ensures accuracy, safety, and data integrity throughout the test cycle:
- Data Acquisition: Includes sensors for Torque, Geschwindigkeit, Pressure, Temperatur, and Flow Rate.
- Control Logic: Features a hydraulic control system, dynamometer control system, and specialized test software.
- Protection: Provides real-time monitoring, over-limit alarms, and protection for the entire system.
Comprehensive Performance Validation Projects
The test bench facilitates full characterization of hydraulic motor performance across various operational regimes:
| Test Project | Primary Measurements | Engineering Value |
|---|---|---|
| Torque & Speed Mapping | Ausgangsdrehmoment, Geschwindigkeit, and Power curves. | Defines the motor's operating envelope and compliance with rated specifications. |
| Volumetric & Overall Efficiency | Flow Rate (Input/Output), Pressure Drop, and Overall Efficiency (η). | Crucial for identifying internal leakage and optimizing energy conversion performance. |
| Temperaturanstiegstest | Rate of temperature rise, steady-state thermal conditions (Oil, Case, Ambient). | Ensures the motor maintains stability during continuous high-load operation. |
| Endurance & Durability | Long-term stability under cyclical loading. | Validates predicted service life and structural reliability. |
| NVH (Lärm, Vibration, Härte) | Vibration and Noise levels (dB). | Essential for applications requiring high acoustic quality, such as mobile machinery. |
