Constant Deceleration Hydraulic Station

This system acts as hoist braking system intelligent control core. Custom built for high-safety high-reliability braking scenarios. Cooperates with disc brake to build closed-loop braking system. Upgrades traditional braking force application to full braking process intelligent control. Guarantees critical application safety, improves equipment operation efficiency and smoothness. Serves essential unit for heavy-duty hoisting equipment safe efficient braking.
Mining hoisting: Main/auxiliary shaft hoists (especially personnel-carrying cages), ensuring constant deceleration and shock-free emergency braking.
Port heavy handling: Hoisting and travel mechanisms of large quay/yard cranes, guaranteeing smooth stopping under heavy loads.
Large construction projects: Tunnel boring machines, large winches and hoists for dam construction, enabling precise braking during lifting and lowering operations.

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Structure Features & Working Principle:
Builds on traditional hydraulic stations with enhanced functions and integrated optimization for intelligent closed-loop control. Its key units include.
Intelligent Sensing Unit: Integrates high-precision encoders speed detection, inertial measurement units real-time deceleration measurement, multi-channel pressure sensors. Collects braking process dynamic data real time.

High-speed Electro-hydraulic Control Valve Group: Core fitted with high-frequency response proportional servo valves or digital flow valves. Receives control commands, rapidly accurately adjusts brake cylinder hydraulic pressure and flow.
Dual Redundant Safety Control Circuit: Adopts main PLC control system plus independent safety relay hard-wired circuits or dedicated safety controllers. Supports SIL2/3 safety levels. Directly monitors key parameters, triggers safe braking amid main system failures.
High-performance Hydraulic Power Unit: Fitted with variable pumps or fixed pumps driven by variable frequency motors, providing a stable and rapidly adjustable hydraulic power source for the system.
Core of the working principle is a real-time closed-loop control of "Perception-Decision-Execution" to maintain the preset constant deceleration:
○Real-time Perception: After a braking command is issued, the system continuously and accurately measures the real-time speed and instantaneous deceleration of the hoisting container via encoders and IMUs.
○Intelligent Decision-making: The main controller compares the measured deceleration with the preset constant deceleration value in real time and calculates the adjustment amount of the braking torque.
○Precise Execution: Controller transmits adjustment commands to high-frequency response proportional valves. Dynamically accurately adjusts brake cylinder hydraulic pressure. Alters brake shoe friction force against brake disc. Realizes braking torque closed-loop control.
○Closed-loop Regulation: Measurement-comparison-adjustment cycle repeats millisecond cycles. Forms dynamic closed-loop control. Actual deceleration closely follows preset curve whole braking process. Achieves smooth controlled uniform deceleration stop.
Adopts intelligent closed-loop control and multiple safety redundant designs. Delivers reliable precise smooth braking solutions high-demand braking scenarios. Acts key guarantee modern heavy-duty hoisting conveying equipment safe operation.

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