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마음과 영혼을 다해 미래를 창조하다

나. 개요 of Power Steering Gear Box
As a core component for power transmission, the railway locomotive power steering gear box, plays a crucial role in energy conversion and power distribution in rail transportation. Its technical parameters directly affect the locomotive’s operational efficiency, energy consumption, and equipment service life. It is an important technical indicator for evaluating the manufacturing level of rail transportation equipment.

II. Materials Engineering System of Power Steering Gear Box
1.Main Structural Materials
(1) Alloy Structural Steel System
20CrMnTiH carburized steel: High-quality alloy steel treated by vacuum degassing, with a carbon content of 0.17-0.23%, and a chromium-manganese-titanium composite strengthening system.
열처리 공정: Utilizes multi-stage controllable atmosphere carburizing technology, achieving a surface hardness of HRC58-62 and maintaining a core hardness of HRC30-35 for toughness.
Microstructure characteristics: Carbides are evenly distributed, with a grain size controlled at ASTM 7-8.
(2) Application of Special Cast Iron
The housing is made of QT600-3 ductile iron, with a tensile strength of ≥600MPa and an elongation of ≥3%.
Graphite morphology control: Spheroidization rate ≥90%, with a sphere diameter of 15-50μm.
Vibration-damping characteristics: Damping coefficient is 40-60% higher than that of ordinary cast steel.
(3) Lightweight Composite Materials
Application of aluminum alloy housing cover: ZL114A cast aluminum alloy, in T6 heat treatment state.
Surface hardening treatment: Micro-arc oxidation forms a 50-80μm ceramic layer, with a hardness of ≥ 800 HV.
Structural optimization: Topology optimization design reduces weight by 35% while maintaining the same stiffness.
Auxiliary Functional Materials
(1) 씰링 시스템: Fluororubber (FKM) and polytetrafluoroethylene (PTFE) composite seals, with a temperature range of -40°C to 200°C.
(2) Lubricating medium: Fully synthetic gear oil ISO VG 320, containing organic molybdenum extreme pressure additives.
(3) Fastening system: 12.9 grade alloy steel bolts, with a surface Dacromet coating treatment.
III. Performance Index System of Power Steering Gear Box
1.Mechanical Performance Parameters
Torque capacity: Continuous working torque ≥150kN·m, peak torque 300kN·m.
Transmission efficiency: ≥98.5% (under rated conditions).
소음 제어: Sound pressure level at 1m from the housing ≤85dB(에이).
2.Durability Indicators
Bench test: 5000-hour full-load durability test.
Tooth surface contact fatigue strength: ≥1100MPa.
Bending fatigue limit: ≥ 400 MPa
3.Environmental adaptability
Operating temperature range: -50°C ~ +120°C
Protection grade: IP67 (dustproof and waterproof)
Vibration resistance performance: meets EN 61373 Cat.I standard
IV. Functions of Power Steering Gear Box
1.Power coupling module
Adopting a quasi-hypoid gear pair design, contact ratio ≥ 2.0
2. Shaping technology:
three-dimensional topological shaping, contact spots comply with ISO 1328 기준
Misalignment compensation capability: shaft deviation ≤ 15′
3.Load distribution system
Planetary gear system load equalization mechanism: floating sun gear design
Load imbalance degree: ≤ 5%
4. Overload protection:
shear pin type safety coupling
Thermal management system
5.Forced lubrication circulation system: flow rate 80 L/min @ 3000 rpm
6. Box body heat dissipation design: finned structure, heat dissipation area increased by 40%
7.Temperature monitoring: embedded PT100 temperature sensor, accuracy ±0.5°C
다섯. Applications of of Power Steering Gear Box
1.High-speed EMU
Transmission ratio range: 3.5 – 5.2
Maximum input speed: 6500 rpm
Special requirements: aerodynamic shape optimization, running smoothness index W ≤ 2.5
2. Heavy-duty freight locomotive
Torque reinforcement design: reinforced planetary carrier structure
Dustproof system: multi-stage labyrinth seal + centrifugal dust removal
Maintenance cycle: first box opening inspection at 500,000 킬로미터
3. Shunting operation vehicle
Compact design: axial dimension ≤ 800 mm
Frequent start-stop optimization: reinforced buffer mechanism
Corrosion protection treatment: heavy-duty anti-corrosion coating system, C5-M anti-corrosion grade
VI. Technological development trends of power steering gearbox
1. Material innovation direction
Gradient material application: surface nanocrystalline layer + gradient transition zone
Self-lubricating material: metal matrix composite (MMC) embedded solid lubricant
Intelligent material: shape memory alloy overload protection device
2.Manufacturing technology breakthrough
Near-net-shape forming technology: 3D printing of planetary carrier as a whole
Digital twin system: a health management system based on PHM
Superfinishing: mirror grinding technology (Ra ≤ 0.2 μm)
| major structure | 재료 | QT600-3 ductile iron |
| 확장의 힘 | ≥600MPa | |
| 연장율 | ≥3% | |
| technology for heating processing | Adopt multi-stage controllable atmosphere carburizing technology | The surface hardness reaches HRC58-62 |
| The core retains HRC30-35 toughness | ||
| performance index | operating temperature range | from -50℃~+120℃ |
| level of protection | IP67 (Dust and water resistant) | |
| application scenarios | high speed train | Transmission ratio range: 3.5-5.2 |
| Heavy-duty freight locomotive | Torque enhancement design: Reinforced planetary carrier structure | |
| Shunting operation vehicle | Compact design: Axial dimension ≤800mm |
Package of of power steering gearbox
Polybag+Carton box+Wood 케이스/팔레트, 고객의 요청에 따라

회사 프로필
뤄양포뇨중공업(Luoyang Fonyo Heavy Industries), 주식회사. 에 설립되었습니다 1998, 면적 72,600㎡, 이상으로 300 직원, 32 기술자, 포함 5 수석 엔지니어, 11 보조 엔지니어, 그리고 16 기술자. 낙양 공정 기술 센터로 평가되었습니다., 낙양기술R&D센터, 여러 번 국가 하이테크 기업.
우리의 생산 능력은 30,000 연간 톤. 현재, 우리는 주로 주강을 생산하고 있습니다, 주철 (회색 철, 연성이 있는 철, 등.), 기관차 완제품 가공 및 부품 조립,철도 차량,고속 열차, 광산 장비,풍력,etc.Our 제품은 러시아에 수출되었습니다, 미국, 독일, 아르헨티나, 일본, 프랑스, 남아프리카,이탈리아 및 기타 국가.
자주 묻는 질문
1분기: 당신은 제조업체입니까, 아니면 무역회사입니까??
에이:우리는 제조업체입니다. 우리 회사는 에 설립되었습니다. 1998, 주조 업계에서 거의 30년 동안, 총면적 72,600㎡, 공장건축면적 51,000㎡.
2분기. 주요 제품은 무엇입니까?
에이: 우리는 주로 철강 주조에 중점을 두고 있습니다., 철 주조, 완제품 가공, 기관차 부품 조립 생산,철도 차량,고속 열차, 광산 장비,풍력,등.
3분기: 주조 부품을 얼마나 정밀하게 생산할 수 있습니까??
에이: 우리는 다양한 주조 공정으로 주조 부품을 생산할 수 있는 능력을 갖추고 있습니다.. 생산은 ISO를 엄격히 준수합니다. 9001, ISO 14001 및 ISO45001,EN15085, 아이리스.
4분기. 샘플에 따라 생산할 수 있습니까??
예, 우리는 귀하의 샘플이나 기술 도면으로 생산할 수 있습니다. 샘플을 받은 후에도 도면을 제작할 수 있습니다..
Q5: 배송 전 품질 관리는 어떻게 합니까??
에이: 품질 검사는 철강 주조 부품의 품질을 보장하는 매우 중요한 요소입니다.. 우리는 따른다 3 전체 생산 과정 중 검사 횟수. 그리고 우리는 재료 테스트 보고서를 제공할 것입니다, 치수 테스트 보고서, 납품 전에 고객에게 기계적 특성 테스트 보고서.
어떤 제품에 관심이 있으신가요?, 저희에게 연락하게 자유롭게 느끼십시오.
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