Driving the Core of the Combine
In the complex anatomy of a modern combine harvester, the separation of grain from the stalk is the primary objective. This process, known as threshing, requires a massive rotating cylinder (drum) or rotor to impact the crop against a concave grate. The mechanism responsible for delivering the high-torque, variable-speed power to this critical component is the Threshing Gearbox (Caixa de Engrenagens de Debulha). This is not merely a power transmission device; it is a torque management system designed to handle the most volatile loads in agriculture.
그만큼 Threshing Gearbox typically sits on the side of the harvester chassis, receiving power from the engine’s main drive belt. Its primary function is to provide selectable speed ranges (e.g., High for wheat, Low for corn) while amplifying torque to prevent the cylinder from stalling when a “slug” of damp crop enters the feeder house. Advanced models integrate with variable speed belt drives (CVTs) or hydrostatic motors to offer infinite speed adjustment on the fly, allowing the operator to fine-tune the threshing aggressiveness based on crop moisture and yield.
에버파워의 TG-Series (Threshing Gear) units are engineered for the extreme inertia and shock loads inherent in harvesting. Constructed with heavy-duty ductile iron housings and precision-ground helical gears, these gearboxes provide the backbone for high-capacity tangential and axial-flow combines. Whether harvesting rice in Asia or soybeans in the Americas, the reliability of the threshing drive determines the daily productivity of the machine.
Technical Specifications: TG-Series (Separator Drive)
| 매개변수 | 사양 | 매개변수 | 사양 |
|---|---|---|---|
| 입력 전력 정격 | 200 HP – 500 HP (150-370 kW) | Output Speed Range | 250 – 1200 RPM (Variable) |
| 기어 범위 | 2-Speed (Hi/Lo) Mechanical | 최대 출력 토크 | 4,500 Nm – 7,000 Nm |
| 주택 자재 | 연성 주철 QT600-3 | 변속 메커니즘 | Hydraulic / Electric Actuator |
| 기어 타입 | Helical (Case Hardened & Ground) | 입력 연결 | Driven Pulley (Multi-Groove) |
| 출력축 | Splined Hub / Flange | 문장 | 고용량 구형 롤러 |
| 매끄럽게 하기 | Forced Feed (Pump) + Splash | 냉각 | Integrated Fins / Oil Cooler Loop |
| 밀봉 | FKM (Viton) Cassette Seals | 오일 용량 | 5.0 Liters – 10.0 Liters |
| Clutch Interface | Electro-Magnetic or Wet Disc | 무게 | 120 kg – 250 kg |
| 비율 (낮음) | 3:1 (For Corn/Beans) | 비율 (높음) | 1:1 (For Wheat/Canola) |
| 설치 | Side Chassis Frame | 보증 | 24 Months / 2000 Hours |
| 페인트 | High-Temp Epoxy | 호환성 | JD S-Series / Claas Lexion / Case IH |
| Monitoring | Temp & Speed Sensor Ports | 애플리케이션 | Threshing Cylinder / Rotor |
"민달팽이" 방어 시스템 설계
1. High Inertia Management
A threshing cylinder acts as a flywheel. When engaged, it stores immense kinetic energy. However, when crop conditions are tough (e.g., green-stem soybeans), the load can spike instantly, threatening to stall the drum. Our Threshing Gearbox is designed with high-contact-ratio helical gears that distribute this shock load across multiple teeth simultaneously. This prevents tooth shearing during sudden deceleration events, ensuring the drive continues to power through the blockage rather than failing.
2. Dual-Range Capability
Different crops require vastly different cylinder speeds. Corn requires slow, high-torque rotation (300 RPM) to avoid cracking kernels. Wheat requires high-speed action (1000 RPM) for separation. A single belt drive cannot efficiently cover this range. Our 2단 변속기 provides a mechanical solution: “Low Range” multiplies torque for corn, while “High Range” offers direct drive speed for small grains. This mechanical advantage allows the upstream belt variator to operate in its most efficient mid-range at all times.
3. Belt Tension Support
The input shaft of the threshing gearbox carries the main drive pulley, which is under tremendous belt tension (often exceeding 1 ton of side load). Standard bearings would deflect, causing seal failure. EVER-POWER utilizes 대형 구형 롤러 베어링 on the input shaft supported by a reinforced “snout” housing. This robust design absorbs the radial belt load, keeping the internal shafts perfectly aligned and the seals tight.
4. Reverser Integration
When a combine plugs, the operator must reverse the feeder house and threshing cylinder to clear the blockage. The gearbox must withstand full torque in reverse rotation. Our gear profiles are designed for bi-directional strength, and the lubrication system includes check valves to ensure oil flow is maintained to critical bearings even when the gearbox is spun backward during a unplugging cycle.
Comparative Analysis: Gearbox vs. Hydrostatic vs. Belt Only
| 특징 | 2-Speed Gearbox Drive (TG Series) | 가변 벨트 구동 전용 | Hydrostatic Direct Drive |
|---|---|---|---|
| 토크 용량 | Very High (Mechanical) | 제한됨 (벨트 슬립) | Medium (Pressure limited) |
| 능률 | 높음(96-98%) | Medium (90-94%) | Low (75-85% Heat loss) |
| 속도 범위 | 광역(듀얼 레인지) | 제한된 비율 | 무한대(0-최대) |
| 유지 | 낮음 (엔진오일 교환) | 높음 (벨트/쉬브 마모) | 높음 (유체/필터) |
| 비용 | 중간 | 낮은 | 매우 높음 |
*The 2-Speed Gearbox remains the industry standard for high-capacity combines due to its torque density.
지역별 적용 사례: 글로벌 농업
쌀 수확 (아시아/미국)
Rice straw is tough and abrasive (“roping”). It places maximum stress on the threshing drive. Our 고강도 주철 gearboxes are preferred in Arkansas and China for their rigidity. The housing does not flex under the extreme torque loads of roped rice straw, maintaining gear alignment and preventing bearing failure.
옥수수 수확 (브라질/미국 중서부)
Corn harvest requires low cylinder speeds to prevent kernel damage. Our gearboxes feature a robust 감속 기어 (저단 기어) 이는 드럼의 회전 속도를 줄이면서 토크를 증폭시키는 역할을 합니다. 이를 통해 콤바인은 드럼이 멈추거나 엔진에 무리가 가지 않고 높은 지상 속도로 수분 함량이 높은 옥수수를 처리할 수 있습니다.
📒 Field Engineer’s Log: The “Stalled” Drum
“October 2025, Iowa Corn Harvest. A farmer with a rotary combine kept plugging the rotor in green-stem corn. The belt was slipping and smoking.”
"콤바인은 단일 속도 벨트 구동 방식이었습니다. 그는 (콩 손상을 방지하기 위해) 로터를 저속으로 작동시키려 했지만, 가장 낮은 풀리 설정에서 벨트의 마찰력이 충분하지 않았습니다."
해결책: 당사는 해당 드라이브에 자사 제품을 장착하여 개조했습니다. TG-200 Two-Speed Gearbox"우리는 기계를 저속 기어로 전환했습니다. 이렇게 하면 기계적으로 속도가 줄어드는 동시에 토크가 두 배로 늘어납니다. 이제 벨트가 도르래에서 더 높고 효율적인 위치에서 작동할 수 있습니다. 콤바인은 막힘 없이 푸른 줄기를 거침없이 통과했고, 곡물 샘플은 그 어느 때보다 깨끗했습니다."
자주 묻는 질문 (OEM/B2B)
1. 분리기가 작동 중일 때 기어를 바꿀 수 있나요?
No! Most agricultural gearboxes utilize non-synchronized mechanical shifters (dog clutches). You must disengage the separator clutch and wait for the drum to stop spinning before shifting ranges. Attempting to shift under load will grind the gears and bend the shift fork.
2. 고온 작동에 가장 적합한 오일은 무엇입니까?
Threshing gearboxes run hot due to proximity to the engine and dust insulation. We recommend a ISO VG 220 또는 75W-140 등급의 완전 합성 기어 오일. Synthetic oil maintains film strength at high temperatures (up to 120°C) better than mineral oil, protecting the gears.
3. Is this compatible with John Deere S-Series?
Yes. Our TG-Series includes models specifically designed to replace or upgrade the rotor drives on John Deere STS, Case IH Axial-Flow, and Claas Lexion combines. We match the spline inputs and mounting bolt patterns for a direct fit.
4. How do I detect bearing failure?
Listen for a low growling noise that changes pitch with RPM. Check for oil leaks at the input seal; shaft deflection from a worn bearing often ruins the seal first. Infrared thermometers are useful for spotting a bearing cap running hotter than the rest of the housing.
최대 속도로 수확하세요
EVER-POWER 탈곡기 기어박스로 콤바인의 핵심 성능을 업그레이드하여 중단 없는 성능을 누리세요.
© 2026 EVER-POWER Transmission. 모든 권리 보유.
주요 시장: 북미, 유럽, 브라질, 아르헨티나, 러시아.
