💡 Key Features & Characteristics
Fail-Safe Operation (Gravity/Spring Applied):
Power Off (Braking): The brake is normally closed. When power is cut (or during a storm emergency), the electro-hydraulic thruster retracts, and the wedge drops onto the rail head via gravity and spring force.
Power On (Release): When the crane is in operation, the thruster lifts the wedge clear of the rail, allowing the crane to travel freely.
Wedge & Friction Design:
Wedging Action: The device uses a wedge shape to mechanically lock against the rail head, providing immense resistance to lateral forces.
High-Friction Pads: The friction blocks are made of high-wear-resistant steel or specialized composite materials to ensure a high friction coefficient (typically f≈0.46f≈0.46 ) and durability against the rail surface.
Electro-Hydraulic Actuation:
Thruster: It is typically matched with an Ed series thruster (e.g., Ed80/6 or similar high-force variants).
Protection: The thruster features an IP65 (or higher) protection rating, making it resistant to water and dust-essential for outdoor port environments.
Response Time: Fast response (typically ≤ 2.5 seconds) to ensure the brake engages immediately when a wind alarm is triggered.
Safety & Maintenance:
Self-Lubricating Bearings: All pivot points use self-lubricating bearings to prevent seizing in harsh, salty environments.
Limit Switches: Equipped with行程 switches to signal the control room whether the wedge is fully "Lifted" (Run) or "Dropped" (Brake).
Manual Release: Includes a manual release mechanism to lift the wedge for maintenance or in case of power failure.
🏭 Typical Applications
The YFX-600/80 is critical for outdoor, rail-mounted heavy machinery:
Port & Harbor: Container cranes (STS), Rubber-Tired Gantry cranes (RTGs) on rails, and Shipyard Gantry cranes.
Mining: Large bucket-wheel excavators and stacker-reclaimers.
Railways: Gantry cranes used in freight yards.
Wind Power: Wind turbine erection equipment.
📋 General Technical Specifications
表格
| Parameter | Description |
|---|---|
| Type | Electro-Hydraulic Wind Wedge (Storm Brake) |
| Model Series | YFX Series |
| Model Variant | YFX-600/80 |
| Max Braking Force | 600 kN (Kilonewtons) |
| Rail Width | 80 mm (Customizable for 60-120mm) |
| Power Supply | AC 380V / 50Hz (3-Phase) |
| Response Time | ≤ 2.5 seconds |
| Operating Temp | -40°C to +75°C |
| Protection Rating | IP65 / IP67 (Dust/Water resistant) |
| Key Function | Anti-typhoon, Anti-sliding, Rail Clamping |
Note: The YFX-600/80 is a safety-critical device. It is often used in conjunction with rail clamps and anchor bolts. The "600" rating refers to the horizontal force it can withstand; ensure your crane's wheel load and rail foundation can support this reaction force. The "80" refers to the rail head width (e.g., QU80 or QU100 rails), so verify your rail dimensions before installation.
