The hydraulic station is an important safety and control component of the hoist, forming a complete braking system together with the disc brake. Its performance and quality directly affect mine productivity and equipment service life. This hydraulic system is professionallydesigned and manufactured for hoists, using carefully selected high-quality domestic hydraulic components and accessories. The system adopts an integrated oil circuit block structure, making the overall design advanced, reasonable, reliable, and easy to maintain.
Advanced Valves: Major valves are produced using internationally advanced technology, ensuring extremely high reliability.
Proportional Relief Valve: An internationally advanced proportional relief valve replaces the original electro-hydraulic pressure regulating device, allowing easy adjustment, excellent pressure linearity, and smoother, more reliable operation.
Strong Magnetic Oil Filter: Effectively solves issues of poor hydraulic oil cleanliness, preventing accidents caused by iron filings or debris clogging the oil circuit and reducing operating costs.
Integrated Valve Technology: Reduces piping connections and potential failures. All valves are mounted on a panel for easy observation and maintenance.
Dual-System Design: Single tank with dual motors, dual pumps, dual pressure regulators; one system in use and one as backup. The control console has pump #1 and #2 selector switches for easy operation. Manual or electronic emergency pressure relief is provided.
Redundant Parallel Circuits: The hydraulic station includes parallel redundant circuit channels for enhanced reliability.
The WF183 Constant Deceleration Hydraulic Station is an important safety and control component of mine hoists. Together with the disc brake and electrical control system, it forms the hydraulic braking system of the mine hoist.
The WF183 Constant Deceleration Hydraulic Station features constant deceleration control during emergency braking via the electrical control system, while retaining the original constant-torque two-stage braking performance. If the constant deceleration control system fails, it automatically switches to the constant-torque two-stage braking mode, enhancing system reliability.Additionally, this hydraulic station uses a solenoid directional valve with spool position monitoring, allowing selfinspectionduring routine maintenance, significantly improving automation and providing reliable support for normal equipment operation.
Performance Features
1. Working Brake: Provides adjustable hydraulic pressure to the disc brake, allowing the hoist to achieve different braking torques for normal operation, speed regulation, and stopping.
2. Constant Deceleration Safety Brake (in-shaft): In any emergency within the shaft, automatically adjusts the disc brake pressure to decelerate the hoist at the set rate. After stopping, all disc brake pressure quickly returns to zero, placing the system in full braking mode.
3. Two-Stage Safety Brake (in-shaft): If constant deceleration fails, automatically switches to two-stage braking. Disc brake pressure drops to a preset value and, after a delay, returns to zero, ensuring full braking.
4. Level-One Safety Brake (at shaft top): In any emergency at the shaft top, disc brake pressure immediately returns to zero, putting the system in full braking.
5. Startup Self-Check: Before operation, the hydraulic station performs self-inspection to confirm proper function. If it cannot meet operational requirements, an alarm is triggered.
