Jernbanestøbegods med overlegen ydeevne Styrestangspindel til lokomotiv & Jernbanevogn

The railway castings steering knuckle arm of rail vehicles, as key load-bearing components in rail transit equipment, their technical characteristics are directly related to the reliability and safety of vehicle operation. As the core hub of the running gear of rail vehicles, the technological evolution of this component has always followed the development path of “high reliability, long service life and intelligence”. From breakthroughs in materials science to innovations in structural mechanics and then to the integration of intelligent monitoring technology, modern steering knuckles have developed into composite functional components integrating mechanical load-bearing, dynamic regulation, and state perception, providing fundamental guarantees for the safe operation of rail transit equipment.

The Material and structural characteristics of The railway Castings steering knuckle arm

Resolution of structural characteristics

(1) material technology innovation of modern railway castings steering knuckle widely used high strength low alloy cast steel (ZG25MnCrNiMo), through vacuum molding precision casting technology, the yield strength of more than 450 mph. The surface adopts a dual-medium quenching process to form a hardened layer with a depth of up to 5mm, with a Rockwell hardness of HRC55-60, hvilket er 40% higher in wear resistance than the traditional process.

(2) the topology optimization design based on finite element analysis for structural topology optimization, the formation of asymmetric stiffener layout. Typical structure characteristics include: design of conical journal: taper ratio 1:10, cooperation with interference quantity 0.08 0.12 mm fan support plate: (12-18 mm) thickness gradient design stress diffusion slot: adopt R20mm arc transition

(3) the modular assembly system adopts HSK63 hydraulic interference fit system, assembly accuracy grade IT6. Equipped with self-lubricating copper alloy bushings (CuSn8P) with a friction coefficient of ≤0.08, it achieves a maintenance-free cycle of up to 800,000 kilometer.

Funktionerne ved The railway castings steering knuckle arm

The performance index system

(1) the dynamic load characteristics of the axial dynamic load capacity, maximum load 300 kn bending stiffness (EN13261 standard): 8 x 10 ^ 4 or higher fatigue life N · m/rad: -en 5 million – cycle (ISO12107 standard)

(2) the environmental adaptability of temperature tolerance: To 40 ℃ til + 120 ℃ keep stable performance under the condition of salt fog protection: 1000 hours salt spray test with no red rust (ISO9227) vibration spectrum tolerance: 5-2000 hz random vibration (IEC61373 Cat. 1)

(3) safety design set up triple protection mechanism of the failure: Main bearing area safety coefficient of 2.5 or higher secondary load path acuity 1.2 times the design capacity operating load fault early warning slot (V groove depth of 2 mm) to realize

The Functions of The railway castings steering knuckle arm

Function realization mechanism of crack extension warning for load transfer system by 3 d surface contact six degrees of freedom constraints: radial load, axial load borne by the conical fitting surface: Passed on thrust flange bending load: scattered by the fan support plate dynamic compensation mechanism integrated radial clearance compensation device: the initial assembly clearance: 0.3 0.5 mm hydraulic compensation scope: + / – 1.2 mm Angle compensation ability: + / – 0.5 ° MEMS sensor embedded intelligent monitoring function: Three-way accelerometer (range plus or minus 50 g) temperature sensor (55 ℃ ~ + 125 ℃) gauge group (120 Ω, gate length 3 mm) to realize vibration characteristic spectrum (0 til 5 KHZ) real-time acquisition, data wireless transmission through the WIA – PA agreement.

The technical development of The railway castings steering knuckle arm

The technical development trend of a new generation of railway castings steering knuckles is multi-functional integrated direction: the perception structure: embedded fiber Bragg grating sensor, strain field distributed monitoring phase change energy storage design: adopt microcapsule phase change material, realize the dynamic management of frictional heat gradient materials application: preparation of WC – Co gradient by laser cladding wear-resisting layer.

The package of The steering knuckle arm

Polybag+Kartonæske+Trækasse/Palle, efter kundens ønske

Virksomhedsprofil

Luoyang Fonyo Heavy Industries Co., Ltd,grundlagt i 1998, er en producent af støbte jernbanedele. Vores fabrik dækker et areal på 72.600㎡, med mere end 300 medarbejdere, 32 teknikere, inklusive 5 senioringeniører, 11 assistentingeniører, og 16 teknikere.Vores produktionskapacitet er 30,000 tons om året.

For tiden, vi producerer hovedsageligt støbning, bearbejdning, og montage til lokomotiv,jernbanevogn,højhastighedstog, mineudstyr, vindkraft,osv. Vores produkter er blevet eksporteret til Rusland, USA, Tyskland, Argentina, Japan, Frankrig, Sydafrika, Italien og andre lande.

Ofte stillede spørgsmål

Q1: Er du producent eller handelsvirksomhed?
EN:Vi er en producent. Vores firma blev grundlagt i 1998, med næsten 30 år i støbeindustrien, et samlet areal på 72.600㎡, med et fabriksbygningsareal på 51.000㎡.
Q2. Hvad er dine vigtigste produkter?
EN: Vi fokuserer primært på stålstøbning, jernstøbning, bearbejdning af færdigt produkt, og komponentmontageproduktion.
Q3: Hvor præcision kan du producere støbedele?
EN: Vi har evnen til at producere støbedele med forskellige støbeprocesser. Produktionen er strengt i overensstemmelse med ISO 9001, ISO 14001 og ISO45001, EN15085, IRIS.
Q4. Kan du producere i henhold til prøverne?
 Ja, vi kan producere efter dine prøver eller tekniske tegninger. Vi kan også bygge tegninger til dig, efter at vi har fået dine prøver.
Q5: Hvordan laver du kvalitetskontrol før levering?
EN: Kvalitetsinspektion er en meget vigtig faktor for at garantere kvaliteten af ​​stålstøbedele. Vi følger efter 3 inspektionstidspunkter under hele produktionsprocessen. Og vi vil levere materialetestrapport, dimensionel prøvningsrapport, og mekaniske egenskaber test rapport til vores kunder før levering.

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