그만큼 휠 세트 is the part of a locomotive or vehicle that comes into contact with the rails. 동일한 축에 단단히 고정된 두 개의 바퀴로 구성됩니다.. The function of the wheel set is to ensure the running and steering of the locomotive or vehicle on the rails, to bear all the static and dynamic loads from the locomotive or vehicle and transfer them to the rails, and to pass on the loads caused by the unevenness of the track to the various components of the locomotive or vehicle. 게다가, the driving and braking of the locomotive or vehicle are also achieved through the wheel set.

나. What is a Wheelset?

First of all, it should be clear that a wheelset is a complete assembly concept. It is not simply a combination of a wheel and an axle, but rather refers to an axle and a pair of wheels pressed or fastened at both ends of the axle, connected as an inseparable integral rotating component through interference fit or high-strength bolts. This integrated design ensures unparalleled structural strength and operational stability, serving as the foundation for coping with the extreme conditions in mining.

II. Core Components

A qualified mining vehicle 윤축 has each component meticulously crafted for its specific mission.

바퀴

Material and Process: Mining vehicle wheels are generally made of high-quality high-carbon steel or alloy forged steel, processed through precise techniques such as forging and heat treatment (담금질 + 템퍼링). This endows the wheels with extremely high hardness, 내마모성, and fatigue strength, enabling them to withstand the impact of rocks, scratches from sharp objects, and significant contact stress.

Tread and Flange: This is the essence of the design. The tread is the load-bearing part that contacts the top surface of the rail, and its profile design (such as taper) directly affects the stability of operation and the performance through curves. The flange, the raised part on the inner side of the wheel, acts like a sturdy “난간”, firmly holding the inner side of the rail, and is the most critical safety barrier against derailment and ensuring guidance. The flange of mining vehicle wheels is typically higher and thicker to accommodate larger gaps and more complex conditions that may exist in the track.

구조적 형태: Besides the integral rolled wheel, there is also a rimmed wheel for easier maintenance and cost reduction. This involves thermally fitting a highly wear-resistant rim onto a more ductile core. When the rim wears out to the limit, it can be replaced separately, offering better economy.

차축

The axle is the “silent hero” in the wheelset, silently bearing the entire vertical weight from the vehicle body and cargo, as well as complex bending and torsional stresses. 그러므로, it must have extremely high bending strength and fatigue toughness.

Mining vehicle axles are also forged from high-grade alloy steel, undergoing precise machining and flaw detection to ensure there are no internal cracks, 슬래그 함유물, or other defects, preventing fatal fatigue fractures under heavy cyclic stress.

Bearings and Seals

그만큼 윤축 is connected to the underframe of the mine car through the bearing box (also known as the axle box). Modern mine car wheelsets generally use heavy-duty rolling bearings (such as cylindrical roller bearings), which have a large load-bearing capacity, low friction resistance, and are easy to maintain, far exceeding the traditional sliding bearings.

The sealing system is the “보호자” of the bearing. The mine environment is filled with dust and mud water, extremely harsh. A combination of one or more high-performance labyrinth seals and rubber oil seals forms an almost impregnable barrier, strictly preventing contaminants from entering and ensuring the purity of the lubricating grease, thereby greatly extending the service life of the bearing and the entire wheelset.

III. Why Wheelsets So Special?

Compared with ordinary railway wheelsets, the design philosophy of mine car 윤축 is full of considerations for “extremes”:

Super heavy load impact: Mine cars have a large load capacity, and the impact during start-up and braking is intense, requiring the wheelset to have extremely high instantaneous impact resistance.

Harsh track conditions: Underground tracks may have unevenness, many small radius curves, and mineral powder adhering to the rail surface, which causes extremely severe wear on the flange and tread, requiring materials with extremely high wear resistance.

Environmental corrosion and pollution: Underground mines are humid and have many corrosive media, while open-pit mines have large temperature differences between day and night, requiring all components, from steel to seals, to have excellent corrosion resistance and aging resistance.

Maintenance costs and economy: Mine cars operate frequently, and downtime for maintenance is expensive. 그러므로, the design of the wheelset must pursue long life and high reliability while also considering maintainability (such as ease of replacement) and total cost of ownership.

IV. 유지

The maintenance of the 윤축 is the top priority in mine safety management. It mainly includes:

Daily inspection: Observe whether the wear of the flange and tread exceeds the limit, and check for cracks, 깨짐, and chipping defects.

Regular flaw detection: Use ultrasonic and magnetic particle methods to perform non-destructive testing on the axle to detect fatigue cracks in a timely manner.

Bearing lubrication: Regularly and quantitatively replenish or replace the specified type of high-performance grease to ensure that the bearing is always in the best working condition.

공급자

뤄양포뇨중공업(Luoyang Fonyo Heavy Industries), 주식회사,1998년에 설립된 철도 주조 부품 제조업체입니다. 저희 공장 부지는 72,600㎡입니다., 이상으로 300 직원, 32 기술자, 포함 5 수석 엔지니어, 11 보조 엔지니어, 그리고 16 기술자. 우리의 생산 능력은 30,000 연간 톤. 현재, 우리는 주로 주조물을 생산하고 있습니다, 가공, 기관차 조립 및 조립,철도 차량,고속 열차, 광산 장비,풍력,등.
우리는 CRRC에 철도 부품을 공급하고 있습니다.(이상 포함 20 CRRC의 지사 및 자회사),Gemac 엔지니어링 기계,삼니그룹, 중공업,등. 우리의 제품은 러시아로 수출되었습니다, 미국, 독일, 아르헨티나, 일본, 프랑스, 남아프리카,이탈리아와 전 세계의 다른 나라들.
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