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Introduction to Rail High-speed Train Automatic Gearbox

Behind the lightning-fast image of high-speed trains, a sophisticated system made of special alloys is silently operating. 다음과 같이 “power conversion hub” of rail transportation, the development of modern railcar custom gearbox embodies the peak wisdom of materials science, mechanical design, and manufacturing processes. This metal component, which bears thousands of tons of traction force, is evolving at an astonishing technical pace, demonstrating the modern industry’s ultimate pursuit of “신뢰할 수 있음” 그리고 “efficiency.”

The Material Intelligence of Rail High-speed Train Automatic Gearbox

Entering the gear-casting workshop, molten iron flows in the molds. This is no ordinary metal casting – engineers meticulously design the material formula as if concocting a precious elixir. The automatic gearbox housing is made of QT450-10 ductile iron, specially treated with rare earth magnesium alloy, giving the graphite crystals a perfect spherical structure. Even more ingenious is the gradually varying wall thickness and the three-dimensional optimized reinforcing rib network reserved during casting, which allows the housing to maintain elegant mechanical balance even under severe vibrations.

The selection of materials for the gear set showcases the “harmony of hardness and softness” of Eastern wisdom. The 18CrNiMo7-6 carburized alloy steel undergoes 72 hours of low-pressure vacuum carburizing treatment, forming a 0.8mm gradient hardened layer on the tooth surface. The surface hardness is comparable to that of diamond (HRC60-62), while the core retains the toughness of spring steel (HRC35-38). 이것 “hard outside, soft inside” characteristic enables the gears to withstand huge impacts, being both tough against wear and gentle in stress relief.

The Mechanical Structure of Rail High-speed Train Automatic Gearbox

The mechanical structure of the three-stage planetary gear set is revealed when the gearbox’s cross-sectional model is opened. The dynamic coordination of the sun gear, planet gears, and internal gear ring, within a space of less than 1 meter in diameter, achieves a transmission ratio miracle of 1:8.5. Engineers have designed a dual clearance elimination system for this miniature mechanical universe: at the microscopic level, each tooth surface undergoes nanometer-level shaping, as if installing air springs on the gears; at the macroscopic level, the pre-tightening force adjustable disc spring group constantly adjusts the gear clearance. 이것 “dual control of hardness and softness” design ensures that the transmission system maintains elegant meshing accuracy even under severe vibrations.

The design of the lubrication system for high speed gearbox is a flowing art. The splashing oil mist outlines invisible fluid channels within the box, and the specially formulated synthetic lubricating oil maintains stable viscosity even at 200°C. A closer look reveals that the position of each lubrication hole has been optimized through fluid dynamics simulation to ensure that key parts such as gear pairs and bearings form a stable oil film armor. The labyrinth seal structure acts like a loyal guard, keeping the precious lubricating oil firmly within the system, even after enduring the tests of polar cold and desert heat.

Performance Testing of Rail High-speed Train Automatic Gearbox

The needle fin heat sinks on the box surface quickly transfer heat to the air, in conjunction with the synthetic lubricating oil with excellent thermal conductivity, keeping the temperature rise firmly below the 45°C red line. The data from the acoustic laboratory is even more astonishing: through the combined effect of microscopic tooth surface modification and composite sound insulation materials, the noise level at 1 meter is reduced to 78 데시벨, transforming the roar of heavy machinery into the soft rustle of pages in a library.

The durability test is like an endless marathon. In a test chamber simulating the wind-sand environment of northwest China, the gear set from gearbox manufactures is undergoing its 2 millionth load cycle, and the contact fatigue strength of the tooth surface still maintains 92% of its initial value. When the test temperature rapidly switches between -40℃ and 120℃, the sealing system of the box demonstrates astonishing environmental adaptability – after 300 cycles of thermal shock, the sealing interface remains perfectly combined. These laboratory data eventually translate into tangible operational benefits: the overhaul cycle of the EMU equipped with the new gearbox has been extended from 800,000 킬로미터에서 1.2 백만 킬로미터, equivalent to an epic journey around the Earth 30 타임스.

Package of Rail High-speed Train Automatic 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.), 완제품 가공 및 부품 조립.제품은 러시아로 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, 및 부품 조립 생산.
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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