6.12.2025 / 4 minute read

30-Tonnen-MRI-Transportaufzug für Krankenhäuser - Aufzug ohne Maschinenraum für die Tsinghua-Universität

Übersicht

This custom-engineered lifting system features a quadruple hydraulic synchronous drive with Q460D high-strength steel structure (yield strength ≥460MPa).

Designed for pit-less installation (overhead ≤3.8m) and machine-room-free operation, compatible with existing 4500×3200mm hoistway at Tsinghua University research facility.

Grundlegende Parameter

ParameterStandardCustom Range
Nennlast30,000 kg10,000-50,000 kg
Ultimate Load50,000 kg (10min)–
Leveling Accuracy±2.5 mm±1.0-±3.0 mm
Speed0.15 m/s0.05-0.25 m/s
Platform Size3500×2800 mm2500×2000-5000×3500 mm
Travel Height15 m (5 stops)≤30 m (10 stops)
Hydraulic Pressure35 MPa25-42 MPa
Vibration ControlVC-C (≤25 μm/s)VC-B upgrade
Safety Factor8.0 (EN 81-20)≥6.0
Platform Levelness≤0.5°/m≤0.2°/m

Die Herausforderung

  • Extreme Load Capacity
    • Structural deflection ≤1/1500 at 50-ton load (ISO 4301)
  • Precision Positioning
    • Repeat leveling accuracy ≤±3mm per ISO 22200
  • Vibration Control
    • VC-C vibration criteria compliance (1-80Hz band)
  • Space Constraints
    • Machine-room-less design (control cabinet depth ≤250mm)
    • Pit-less installation (cylinder embedment ≤300mm)

Lösungen

  • Composite Load Structure
    • Four-column box girder frame (400×400mm section)
    • Topology-optimized FEA (max stress ratio ≤0.7)
  • Quadruple Hydraulic Synchronization
    • 4×Φ300mm plunger cylinders with closed-loop control
    • Laser ranging real-time correction (0.1mm resolution)
  • Active Vibration Isolation
    • Hydro-pneumatic dampers (>90% attenuation)
    • Piezoelectric accelerometer feedback
  • Compact Power Unit
    • Dual-pump redundancy (80mL/r displacement)
    • Embedded valve manifold (depth ≤200mm)

Vorteile

MetricThis SystemConventional
Leveling Accuracy±2.5 mm±10 mm
Vibration18 μm/s50-100 μm/s
Load/Weight Ratio4.2:12.5:1
Start-up Shock≤0.1g≥0.3g
Energy Consumption0.8 kWh/cycle2.5 kWh/cycle

Galerie

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