Constant Deceleration Hydraulic Station
- Deceleration range : 0.5m/s²-3m/s² adjustable, control accuracy ±2%.
- Accumulator : Capacity 500L, oil filling pressure is controlled by pressure relay (threshold value set by JP1/JP2).
- Heat resistance : Oil working temperature -35℃~80℃, brake disc high temperature resistance ≥300℃ (special treatment up to 500℃).
-
Explosion-proof requirements :
The explosion-proof model must comply with coal mine safety regulations and be suitable for underground gas environments.
- INTRODUCTION
- SPECIFICATION
- RELATED
- INQUIRY
Constant Deceleration Hydraulic Station Technical Specifications
I. Overview
The constant deceleration hydraulic station serves as the core control unit for mine hoist braking systems. It enables constant-deceleration stops during emergency braking while preventing impact or loss of control through closed-loop pressure regulation. Compliant with Coal Mine Safety Regulations and AQ 1036-2007 (Safety Standards for Multi-Rope Friction Mine Hoists).
II. System Components
Power Unit
Hydraulic Pumps: Dual gear pumps or plunger pumps (A10VSO series) with redundancy
Motors: Explosion-proof 3-phase motors (Ex d IIC T4), 5.5-22kW, 380V/660V
Control Unit
Proportional relief valve (0-20MPa)
Solenoid directional valve (response ≤0.1s)
PLC with PID algorithm (10ms control cycle)
Monitoring & Safety
Accumulators: 10-40L bladder type (nitrogen-charged emergency backup)
Sensors: Pressure (0-20MPa) + speed feedback
III. Technical Parameters
| Parameter | Specification |
|---|---|
| Rated Pressure | 6.3-16 MPa |
| Flow Rate | 20-100 L/min |
| Deceleration Range | 0.5-3 m/s² (adjustable) |
| Temperature Range | -20°C to 60°C |
IV. Key Features
±0.1 m/s² deceleration precision
Dual redundant design (MTBF ≥50,000 hrs)
HMI interface with remote monitoring
IP65 protection, vibration resistant (4g/200Hz)
V. Maintenance Guidelines
Daily Checks
Oil level (≥80% capacity)
Filter differential pressure (replace if ≥0.35MPa)
Scheduled Maintenance
3-month accumulator checks (90% nitrogen precharge)
Annual oil replacement (HM46 anti-wear hydraulic oil)
VI. Compliance Standards
GB 3836.1-2010 (Explosion Protection)
GB/T 3766-2015 (Hydraulic Systems)
AQ 1036-2007 (Mine Hoist Safety)
Note: For high-altitude or extreme temperature applications, use wide-temperature hydraulic oil and enhanced sealing designs.
| Model Series | Max Pressure (MPa) | Flow Rate (L/min) | Motor Power (kW) | Key Features |
|---|---|---|---|---|
| E149 Series[3](@ref) | 14 | Variable | 15-55 |
|
| TE151 Series[3](@ref) | 14 | 50-100 | 22-75 |
|
| TE160 Series[4](@ref) | 6.3 | 14 | 7.5 |
|
Core Technical Specifications[3,4](@ref):
Braking System:
Two-stage safety braking function
Adjustable delay time: 0-10s
Temperature Range: -20℃ to +65℃
Hydraulic Fluid: YB-N46 anti-wear oil
Control Accuracy: ≤±2% set pressure
Certifications & Safety[3,4](@ref):
ATEX/IECEx certified models available
CE/UL 61010-2-201 compliant
IP65 protection standard
Maintenance Requirements[4](@ref):
Oil cleanliness: NAS 1638 Class 9
Filter replacement: 2000 operating hours
Pressure calibration: Every 6 months
* Technical data verified at 25℃ ambient temperature[3](@ref)
** Custom configurations available for specific PLC systems[4](@ref)
† 2-year industrial warranty included
