6.13.2025 / 4 minute read
Plataforma de mantenimiento para pruebas en túnel aerodinámico | Elevador de tijera de gran resistencia para pruebas de motores
Resumen del proyecto
This heavy-duty fixed scissor lift is engineered for aircraft engine maintenance in wind tunnel test cells. Installed at the tunnel entrance, it provides technicians a stable, precision-positioning platform during full-thrust engine operation.
The system utilizes proportional valves for synchronous control of multiple lifting units, integrates string potentiometers for real-time stroke feedback, and incorporates stainless steel bi-directional swing gates with position monitoring to ensure operational safety and compliance.
Parámetros básicos
| Parámetro | Especificación |
|---|---|
| Tipo | Fixed Heavy-Duty Scissor Lift |
| Aplicación | Aircraft Engine Wind Tunnel Maintenance |
| Synchronization Control | Proportional Valve Hydraulic Closed-Loop |
| Positioning Feedback | High-Accuracy String Potentiometers (Per Unit) |
| Gate System | Full-Width Stainless Steel Swing Gates |
| Safety Monitoring | Gate Closed Position Limit Switches |
| Capacidad de carga | ≥10 Tons (Typical Engine Weight) |
| Altura de elevación | 8–12 Meters (Customized to Test Cell) |
| Tamaño de la plataforma | Full-Width Coverage (Tunnel Interface) |
| Synchronization Accuracy | ≤±2mm (Multi-Cylinder Dynamic Error) |
El desafío
- Multi-Cylinder Synchronization: Maintain millimeter-level synchronization of heavy-loaded scissor units under dynamic loads.
- Operational Stability: Resist vibration/aerodynamic disturbances during full-thrust engine tests.
- Safety Interlocking: Hardwired gate-lift interlock to prevent hazardous operations.
- Long-Stroke Positioning: High-accuracy feedback sensors for >10m travel in harsh environments.
Soluciones
- Closed-Loop Synchronous Control
- Proportional valves adjust hydraulic flow based on real-time string potentiometer feedback, enabling PID dynamic correction.
- Diseño estructural robusto
- Reinforced scissor arms and wide-base frame to withstand lateral wind loads and engine vibrations.
- Safety Interlock System
- Gate position switches integrated into PLC control; lift operation enabled only upon verified gate closure.
- Industrial-Grade Sensing
- IP67-rated string potentiometers resistant to oil, dust, and EMI for reliable long-stroke positioning.
Ventajas
✅ Sincronización de precisión: ≤±2mm multi-cylinder error via closed-loop control.
✅ Cumplimiento de las normas de seguridad: Gate-lift interlock meets ISO 13849 SIL 2 requirements.
✅ Full Environmental Resilience: Corrosion-resistant stainless steel, wide-temperature hydraulics (-20℃~60℃).
✅ Maintenance-Optimized: Open-access gate design and modular structure streamline servicing.
✅ Data Traceability: Controller logs lift position, synchronization error, and gate status for diagnostics.
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