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The high-pressure briquetting machine
1：Main structure
The high-pressure briquetting machine is primarily composed of the following components (as shown in the diagram below):
1: Motor 2: Belt Drive 3: Gearbox 4: Hydraulic Station 5: Spline Shaft Gear Coupling
6: Pre-Compression Screw 7: Frame Assembly 8: Roller Assembly 9: Discharge Belt
2：Key features
1. Transmission System
The transmission system operates as follows: Motor → Belt Drive → Double-Shaft Hardened Gear Reducer → Gear Coupling → Roller. Key advantages include:
●Pure Torque Output: Ensures efficient power transfer without lateral forces.
●Large Roller Displacement: Enhances production stability and extends roller lifespan.
●Hydraulic Pressure Adjustment: Enables flexible briquetting force control for adaptability to diverse material conditions.
2. Gearbox
●Custom Double-Output Shaft Gearbox: Hardened gears optimized for heavy-duty, low-speed operations.
●Design Specifications:
Theoretical lifespan: 5 years under extreme load conditions; actual service life exceeds this with proper maintenance.
●Lubrication System:Gears: Oil lubrication.
Bearings: Splash lubrication (standard) or forced internal circulation lubrication (for large machines).
Optional oil coolers/heaters for environmental adaptability.
3. Gear Coupling
●Two Sets Installed: Allow radial displacement of the movable roller (2–15 mm) while maintaining torque transmission.
●Design Features:Each coupling handles 3/5 of total torque.
●Medium-hardened gear surfaces (HB240–270).
●Groove Alignment Mechanism: Ensures precise circumferential alignment of roller molds.
4. Frame Assembly
●Structure: Composed of 8 beams (2 upper, 2 lower, 4 vertical) connected via hinged pins for easy disassembly.
●Adjustment Mechanism: Axial alignment system for roller grooves.
5. Roller Assembly
●Dual Roller Configuration: One fixed, one radially movable via hydraulic cylinders integrated with vertical beams.
Material & Construction:
●High-Quality Bearing Steel: Surface hardness ≥ HRC58 post-heat treatment (high strength, wear resistance).
Shaft Design:
●Fixed at one end, movable at the other.
●Withdrawal Sleeve Bearings: Simplify assembly and maintenance.
●Sealing: Labyrinth seals + rotating lip seals for contamination protection.
●Roller Structure: Integral hot-assembly design with replaceable sleeves to prevent shaft damage.
6. Pre-Compression Screw
●Core Function: Critical for compacting challenging materials into uniform briquettes.
●Design Innovations:
Variable-Pitch Screw: Precision-engineered for optimal compression (refined through decades of practical expertise).
Variable Frequency Drive (VFD): Adjustable speed via dedicated reducer.
7. Hydraulic System
●Function: Powers the movable roller via 4 synchronized hydraulic cylinders.
●Components:
Motor, plunger pump, coupling, oil tank, valve blocks, pipelines.
Relief valve, check valve, accumulator, pressure gauge, sensors.
●Max Pressure: 31.5 MPa.
