Запчастини для грохотів і живильників
Огляд
Живильні та грохотні вузли складаються з восьми основних категорій компонентів, які працюють разом для забезпечення рівномірного подавання матеріалу, точної класифікації та ефективного грохочення в таких галузях, як гірничодобувна промисловість, будівництво та металургія. Ці компоненти включають корпус/каркас живильника, вібраційний вузол, підвісний вузол, приводну систему, секції деки живильника/колосникові решітки, футеровку, кріплення та дрібні деталі, а також різноманітні допоміжні пристрої. Правильний вибір, монтаж та обслуговування кожної категорії є критично важливими для надійної роботи та тривалого терміну служби.
Materials
Key materials are chosen for their strength, wear resistance, and vibration performance:
| Component Category | Materials | Function |
|---|---|---|
| Feeder Body / Frame | Carbon steel, alloy steel | Structural support; bears material load and vibration |
| Vibrator Assembly | Hardened steel shafts, bearings, seals | Generates controlled linear/circular/elliptical vibration |
| Suspension Assembly | Steel coil springs, rubber springs | Isolates vibration; limits displacement |
| Drive System (Belt & Hydraulic) | Rubber V-belts, steel pulleys, hydraulic motors | Transmits power to the vibrator |
| Feeder Deck / Grizzly Sections | High-manganese or alloy steel bars; wear liners | Feeds and stratifies material; screens oversize |
| Wear Components / Liners | Rubber, polyurethane (PU), ceramic inserts, UHMWPE | Protects contact surfaces from abrasion and impact |
| Fasteners & Small Parts | High-grade bolts, nuts, washers, pins, seals | Connects, seals, and secures assemblies |
| Other Components | Sensors, guards, auto-grease units | Safety, monitoring, and lubrication support |
Feeding & Screening Mechanisms
- Vibratory Feeding
Vibrators—either electromagnetic or mechanical with eccentric shafts—produce linear, circular, or elliptical motions that propel material along the feeder pan at adjustable amplitude and frequency. - Gravity Feeding
Inclined or apron feeders rely on gravity across a sloped surface, allowing bulk or hot materials to advance uniformly without vibration. - Grizzly Scalping
Grizzly sections, made of parallel steel bars or punched plates, remove oversized rocks and debris at the feeder inlet to protect downstream equipment. - Stratification & Screening
Screening decks—inclined, horizontal, or multi-slope—use vibration and slope to layer particles by size; fines pass through apertures while coarse particles travel over the deck. - Flow Control
Feed rate and stratification can be adjusted via variable-frequency drives on vibrators, amplitude settings, or changes in deck inclination to meet processing requirements.
Technical Glossary
- Feeder Body / Frame: Welded steel structure supporting all feeder components.
- Vibrator Assembly: Unit generating vibration, composed of eccentric shafts, gearbox, bearings, and housing.
- Suspension Assembly: Springs or rubber elements isolating the vibrating frame from the support structure.
- Drive System: Power transmission via V-belt or hydraulic motor to the vibrator assembly.
- Feeder Deck / Grizzly: Panels or bar sections where material is fed and initially screened.
- Liner Assembly: Wear-resistant panels protecting high-impact and high-abrasion areas.
- Wear Plate: Removable panels made of rubber, PU, ceramic, or UHMWPE to shield equipment surfaces.
- Lubrication System: Components such as grease fittings and auto-grease units ensuring proper oil or grease delivery.
- Stroke: Peak-to-peak displacement of a vibrating component.
- Stratification: The layering effect in screening where finer particles migrate downward.
- Counterweight: Masses on vibrator shafts creating unbalanced centrifugal force.
- Parallel Key: Keyed connection transmitting torque between shafts and pulleys.
- Coupling: Device joining two shafts for power transmission.
- Hydraulic Drive Unit: Vibrator drive option using a hydraulic motor and manifold.
- Breather: Vent device on gear housings to prevent pressure build-up.
- Lockout & Tagout: Safety procedure to prevent accidental equipment startup during maintenance.
- Material Flow: Movement and path of material through feeding and screening equipment.