KR100858370B1 - Pantograph of electrical railway using composite material - Google Patents

Pantograph of electrical railway using composite material Download PDF

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Publication number
KR100858370B1
KR100858370B1 KR1020060123889A KR20060123889A KR100858370B1 KR 100858370 B1 KR100858370 B1 KR 100858370B1 KR 1020060123889 A KR1020060123889 A KR 1020060123889A KR 20060123889 A KR20060123889 A KR 20060123889A KR 100858370 B1 KR100858370 B1 KR 100858370B1
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South Korea
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pantograph
railway vehicle
composite material
electric railway
frame
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KR1020060123889A
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Korean (ko)
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KR20080051978A (en
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김정석
고태환
한성호
서승일
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한국철도기술연구원
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L5/00—Current collectors for power supply lines of electrically-propelled vehicles
    • B60L5/18—Current collectors for power supply lines of electrically-propelled vehicles using bow-type collectors in contact with trolley wire
    • B60L5/22—Supporting means for the contact bow
    • B60L5/24—Pantographs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/14—Layered products comprising a layer of metal next to a fibrous or filamentary layer
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
    • B32B9/005—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile
    • B32B9/007—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising one layer of ceramic material, e.g. porcelain, ceramic tile comprising carbon, e.g. graphite, composite carbon
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2305/00—Condition, form or state of the layers or laminate
    • B32B2305/10—Fibres of continuous length
    • B32B2305/18—Fabrics, textiles
    • B32B2305/184—Braided fabrics
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L2200/00—Type of vehicles
    • B60L2200/26—Rail vehicles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60Y—INDEXING SCHEME RELATING TO ASPECTS CROSS-CUTTING VEHICLE TECHNOLOGY
    • B60Y2200/00—Type of vehicle
    • B60Y2200/30—Railway vehicles

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Power Engineering (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)

Abstract

본 발명은 가공선과 접촉하여 전기에너지를 집전하기 위한 복합소재를 적용한 전기철도차량용 판토그라프에 관한 것으로, 더욱 상세하게는 판토그라프를 구성하는 각종 프레임을 비금속 재질로 형성하여 판토그라프를 경량화 함에 따라 전기철도차량의 중량을 감소시키고, 나아가 전기철도차량의 진동 감쇄특성 및 부식에 대한 저항성을 향상시킬 수 있는 복합소재를 적용한 전기철도차량용 판토그라프에 관한 것이다.The present invention relates to a pantograph for an electric railway vehicle applying a composite material for contacting the overhead line and collecting electrical energy, and more particularly, by forming various frames constituting the pantograph with a non-metallic material to reduce the weight of the pantograph. The present invention relates to a pantograph for an electric railway vehicle using a composite material which reduces the weight of a railway vehicle and further improves vibration damping characteristics and resistance to corrosion of the electric railway vehicle.

이를 위해, 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프는 가공선으로부터 전기에너지를 집전하기 위한 복합소재를 적용한 전기철도차량용 판토그라프에 있어서, 상기 판토그라프의 프레임 중 어느 하나 이상은 3차원 브레이딩기법으로 제조된 복합소재로 이루어진 것을 특징으로 한다. 단, 상기 복합소재는 유리섬유 또는 탄소섬유 중 어느 하나이며, 상기 판토그라프는 틸팅열차용 판토그라프인 것을 특징으로 한다.To this end, the pantograph for an electric railway vehicle to which the composite material according to the present invention is applied is a pantograph for an electric railway vehicle to which the composite material for collecting electrical energy from the overhead line, any one or more of the frame of the pantograph is a three-dimensional bra Characterized in that the composite material produced by the ding technique. However, the composite material is any one of glass fibers or carbon fibers, and the pantograph is a pantograph for tilting trains.

전기철도차량, 판토그라프, 프레임, 3차원 브레이딩, 유리섬유, 탄소섬유 Electric Railway Vehicle, Pantograph, Frame, 3D Braiding, Glass Fiber, Carbon Fiber

Description

복합소재를 적용한 전기철도차량용 판토그라프{Pantograph of electrical railway using composite material}Pantograph for electric railroad vehicle using composite material {Pantograph of electrical railway using composite material}

도 1은 종래 기술에 따른 전기철도차량용 판토그라프를 나타낸 개략 구성도이다.1 is a schematic configuration diagram showing a pantograph for an electric railway vehicle according to the prior art.

도 2는 일반적인 전기철도차량용 판토그라프의 틸팅 상태를 나타낸 상태도이다.2 is a state diagram showing a tilting state of a pantograph for a general electric railway vehicle.

도 3은 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프를 나타낸 개략 구성도이다.3 is a schematic configuration diagram showing a pantograph for an electric railway vehicle to which the composite material according to the present invention is applied.

도 4는 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프의 프레임 제작기법을 설명하기 위한 개략 구성도이다.Figure 4 is a schematic configuration for explaining a frame manufacturing method of the pantograph for an electric railway vehicle to which the composite material according to the present invention is applied.

도 5는 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프의 프레임 프리폼 형성을 설명하기 위한 개략 구성도이다.Figure 5 is a schematic configuration for explaining the frame preform formation of the pantograph for an electric railway vehicle to which the composite material according to the present invention.

<도면의 주요 부분에 대한 부호의 설명><Explanation of symbols for the main parts of the drawings>

10, 20: 판토그라프 11, 21: 베이스 프레임10, 20: pantograph 11, 21: base frame

12, 22: 하부 프레임 13, 23: 상부 프레임12, 22: lower frame 13, 23: upper frame

14, 24: 집전부 15, 25: 애자14, 24: collector 15, 25: insulator

본 발명은 가공선과 접촉하여 전기에너지를 집전하기 위한 복합소재를 적용한 전기철도차량용 판토그라프에 관한 것으로, 특히 판토그라프를 구성하는 각종 프레임을 비금속 재질로 형성하여 판토그라프를 경량화 함에 따라 전기철도차량의 중량을 감소시키고, 나아가 전기철도차량의 진동 감쇄특성 및 부식에 대한 저항성을 향상시킬 수 있는 복합소재를 적용한 전기철도차량용 판토그라프에 관한 것이다.The present invention relates to a pantograph for an electric railway vehicle applying a composite material for collecting electrical energy in contact with a overhead line, and in particular, by forming various frames constituting the pantograph with a non-metallic material to reduce the pantograph to reduce the weight of the electric railway vehicle. The present invention relates to a pantograph for an electric railway vehicle using a composite material which reduces weight and further improves vibration damping characteristics and resistance to corrosion of the electric railway vehicle.

일반적으로 전기철도차량은 선로를 따라 설치된 가공선(혹은, '트롤리선' 이라고 함)으로부터 전기에너지를 공급받아 그 운행 및 제어에 사용하고 있으며, 이를 위해 전기에너지를 집전할 수 있는 판토그라프(pantograph)를 그 상부에 장치하여 사용하고 있다. In general, electric railway vehicles are supplied with electric energy from overhead lines (or 'trolley lines') installed along the track and used for operation and control.For this purpose, a pantograph can collect electric energy. Is used on top of it.

즉, 일 예로서 도 1에 도시되어 있는 바와 같이, 애자(15)에 의해 절연을 유지하면서 전기철도차량의 상부에 장치되는 베이스 프레임(11)과, 상기 베이스 프레임(11)에 일단이 결합된 하부 프레임(12)과, 상기 하부 프레임(12)과 탄성 결합되되 상단에 집전부(14)가 장치된 상부 프레임(13) 등을 포함하여 이루어진 판토그라프(10)를 전기철도차량의 상부에 장치하여 사용하고 있다. That is, as shown in FIG. 1 as an example, the base frame 11 mounted on the electric rail vehicle while the insulation is maintained by the insulator 15 and one end thereof are coupled to the base frame 11. A pantograph 10 including a lower frame 12 and an upper frame 13 elastically coupled to the lower frame 12 and provided with a current collector 14 at an upper portion thereof is mounted on the upper portion of an electric railway vehicle. I use it.

그러나, 이상과 같은 판토그라프(10)는 금속재질로 이루어져 있어 전체 중량이 대략 120kg인 고중량물에 해당함에 따라 전기철도차량 운행시의 진동, 또는 초기기동 및 정지시의 관성력에 의해 전기철도차량에의 장착 특성이 저하 됨은 물론, 운행시 고중량의 판토그라프(10)에 의해 약 7kgf의 압상력이 지속적으로 작용하여 각 부재의 피로파괴현상이 발생한다는 문제점이 있었다.However, as described above, the pantograph 10 is made of a metal material and thus corresponds to a heavy weight having a total weight of approximately 120 kg. Therefore, the pantograph 10 is applied to the electric railway vehicle by vibration during the operation of the electric railway vehicle or by inertial force during the initial start and stop. As well as the mounting characteristics of the deterioration, during operation, the high-pressure pantograph 10 has a problem that the rolling force of about 7kgf continuously acts to cause fatigue failure of each member.

이에, 전기철도차량의 설계시 당해 전기철도차량의 상부 즉, 지붕에 보강재를 부가 설치하는 방안이 고려되고 있으나, 지붕에 보강재를 첨부하면 전기철도차량 자체의 중량이 증가하여 운행 효율이 저하된다는 문제점이 있었다.Therefore, when designing an electric railway vehicle, a method of adding a reinforcement to an upper portion of the electric railway vehicle, that is, a roof, is considered, but attaching a reinforcement to a roof increases the weight of the electric railway vehicle itself, thereby deteriorating operating efficiency. There was this.

또한, 수분 및 염분 등에 취약한 금속재질로 이루어진 판토그라프(10)가 장시간 외부환경에 노출될 경우에는 부식 등이 발생할 수 있으며, 이러한 부식은 두 개의 프레임을 서로 용접 결합하여 이루어진 'Y'자 형상의 하부 프레임(12) 용접부에서 더욱 빠르게 진행됨은 물론, 접합부 자체로서 강도저하의 요인이 된다는 문제점이 있었다.In addition, when the pantograph 10 made of a metal material vulnerable to moisture and salt is exposed to the external environment for a long time, corrosion may occur, and the corrosion may be formed by welding the two frames to each other in a 'Y' shape. The lower frame 12 has a problem that progresses more rapidly in the welded portion, as well as causes a decrease in strength as the joint portion itself.

나아가, 이러한 문제점들은 도 2에 도시되어 있는 바와 같이, 전기철도차량이 곡선부에서 틸팅(tilting)할 경우 판토그라프(10)가 상기 전기철도차량의 경사방향과 반대 방향으로 틸팅하여 가공선으로부터의 이선을 방지할 수 있도록 최대틸팅 각속도 4°/sec를 만족하여야 하는 틸팅열차용 판토그라프(10)에서 더욱더 심각하였다.Further, as shown in FIG. 2, the pantograph 10 tilts in a direction opposite to the inclination direction of the electric railway vehicle when the electric railway vehicle is tilted at the curved portion, thereby moving away from the overhead line. It was even more serious in the pantograph 10 for the tilting train to satisfy the maximum tilting angular velocity 4 ° / sec to prevent the.

이에, 본 발명에서는 전술한 바와 같은 문제점을 해결하여 가공선과 접촉하여 전기에너지를 집전할 수 있도록 하되, 판토그라프를 경량화 함에 따라 전기철도차량의 중량을 감소시키고, 나아가 전기철도차량의 진동 감쇄특성 및 부식에 대한 저항성을 향상시킬 수 있는 복합소재를 적용한 전기철도차량용 판토그라프를 제공하고자 한다.Thus, in the present invention to solve the problems described above to be able to collect electrical energy in contact with the overhead line, the weight of the electric railway vehicle is reduced by reducing the pantograph, and further, the vibration attenuation characteristics of the electric railway vehicle and The present invention aims to provide a pantograph for an electric railway vehicle using a composite material that can improve resistance to corrosion.

이를 위해, 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프는 가공선으로부터 전기에너지를 집전하기 위한 복합소재를 적용한 전기철도차량용 판토그라프에 있어서, 상기 판토그라프의 프레임 중 어느 하나 이상은 3차원 브레이딩 기법으로 제조된 복합소재로 이루어진 것을 특징으로 한다.To this end, the pantograph for an electric railway vehicle to which the composite material according to the present invention is applied is a pantograph for an electric railway vehicle to which the composite material for collecting electrical energy from the overhead line, any one or more of the frame of the pantograph is a three-dimensional bra Characterized in that the composite material produced by the ding technique.

이때, 상기 프레임은 상기 전기철도차량의 상부에 결합 지지되는 베이스 프레임과, 일측이 상기 베이스 프레임과 연결된 하부 프레임, 및 상기 하부 프레임의 타측과 집전부 사이에 결합된 상부 프레임을 포함하여 이루어진 것이 바람직하다.At this time, the frame is preferably made of a base frame coupled to the upper support of the electric railway vehicle, one side is a lower frame connected to the base frame, and the upper frame coupled between the other side and the current collector of the lower frame. Do.

또한, 상기 3차원 브레이딩 기법으로 제조된 프레임의 양측 종단부에는 부싱이 장치되어 있는 것이 바람직하다.In addition, it is preferable that bushings are provided at both ends of the frame manufactured by the three-dimensional braiding technique.

또한, 상기 복합소재는 유리섬유 또는 탄소섬유로 이루어진 것이 바람직하다.In addition, the composite material is preferably made of glass fiber or carbon fiber.

나아가, 상기 판토그라프는 틸팅열차용 판토그라프인 것이 바람직하다.Furthermore, the pantograph is preferably a pantograph for a tilting train.

이하, 본 발명의 바람직한 실시예를 첨부된 도면을 참조하여 설명하도록 한다. 단, 이하에서 싱글 암(single arm) 타입 판토그라프를 일 예로 하여 설명하나, 본 발명은 이에 한정하지 아니하고 다이아몬드(diamond) 타입 판토그라프 및 크로스 암(cross arm) 타입 판토그라프 등은 물론 그 외 복수개의 하부 프레임과 상부 프레임들로 이루어진 다양한 타입의 판토그라프에도 적용 가능함은 당업자 수준에서 자명할 것이다.Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. However, hereinafter, a single arm type pantograph will be described as an example, but the present invention is not limited thereto, but a diamond type pantograph, a cross arm type pantograph, and the like, as well as a plurality of other types. Applicability to various types of pantograph consisting of four lower frames and upper frames will be apparent to those skilled in the art.

도 3은 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프를 나타낸 개략 구성도이고, 도 4는 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프의 프레임 제작기법을 설명하기 위한 개략 구성도이며, 도 5는 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프의 프레임 프리폼 형성을 설명하기 위한 개략 구성도이다.Figure 3 is a schematic configuration diagram showing a pantograph for an electric railway vehicle to which the composite material according to the present invention, Figure 4 is a schematic configuration diagram for explaining a frame manufacturing method of the pantograph for an electric railway vehicle to which the composite material according to the present invention is applied. 5 is a schematic configuration diagram for explaining the frame preform formation of the pantograph for an electric railway vehicle to which the composite material according to the present invention is applied.

먼저, 도 3에 도시된 바와 같이, 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프(20)는, 선로를 따라 설치된 가공선으로부터 전기에너지를 공급받아 그 운행 및 제어에 사용할 수 있도록 상기 전기철도차량의 상부에 고정 설치되며, 이러한 판토그라프(20)는 애자(25)에 의해 절연을 유지하며 전기철도차량의 상부에 고정 설치된 베이스 프레임(21)과, 그 일단이 상기 베이스 프레임(21)과 결합된 하부 프레임(22), 및 상기 하부 프레임(22)의 타단과 결합되되 상단에는 선로를 따라 설치된 가공선과 접촉하며 전기에너지를 집전할 수 있도록 하는 집전부(24)가 장치된 상부 프레임(23)을 포함하여 구성된다.First, as shown in Figure 3, the pantograph 20 for an electric railway vehicle to which the composite material according to the present invention is applied, the electric railway to receive the electric energy from the overhead line installed along the track to be used for its operation and control The pantograph 20 is fixed to the upper portion of the vehicle, and the pantograph 20 maintains insulation by the insulator 25 and is fixed to the upper portion of the electric railway vehicle, and one end thereof is connected to the base frame 21. The upper frame 23, which is coupled to the lower frame 22 and the other end of the lower frame 22, and is provided with a current collector 24 for contacting the overhead line installed along the line and collecting electrical energy. It is configured to include).

단, 하부 프레임(22)과 상부 프레임(23)은 서로 힌지 결합하여 소정 범위 내 에서 회동이 가능하도록 구성되며, 이에 더해 탄성부재를 삽입하여 운행 또는 정차시 집전부(24)와 가공선이 항상 적절한 접촉 상태를 유지할 수 있도록 구성된다. However, the lower frame 22 and the upper frame 23 are hinged to each other and configured to be rotatable within a predetermined range. In addition, the current collector 24 and the overhead line are always appropriate when driving or stopping by inserting an elastic member. It is configured to maintain the contact state.

또한, 베이스 프레임(21)은 틸팅부에 의해 차체의 상단에 결합되어 전술한 바와 같이 곡선부를 주행시 가공선과의 이선을 방지할 수 있도록 구성되나, 이러한 틸팅부는 이미 공지된 기술이므로 그 상세한 설명은 생략하도록 한다.In addition, the base frame 21 is coupled to the upper end of the vehicle body by the tilting portion is configured to prevent the deviation of the process line when driving the curved portion as described above, this tilting portion is already known technology, so the detailed description thereof is omitted. Do it.

한편, 본 발명에 따른 복합소재를 적용한 전기철도차량용 판토그라프(20)는 가공선과 접촉하여 전기에너지를 집전하기 위한 집전부(24)를 제외하고, 베이스 프레임(21), 하부 프레임(22), 및 상부 프레임(23) 중 적어도 어느 하나 이상은 3차원 브레이딩(3D braiding) 기법으로 제조된 복합소재로 이루어진 것을 특징으로 한다.On the other hand, the pantograph 20 for an electric railway vehicle to which the composite material according to the present invention is applied is the base frame 21, the lower frame 22, except for the current collector 24 for collecting electrical energy in contact with the overhead line. And at least one of the upper frames 23 is made of a composite material manufactured by a 3D braiding technique.

즉, 종래 판토그라프(20) 중량의 대부분을 차지하던 금속재질의 베이스 프레임(21), 하부 프레임(22), 및 상부 프레임(23)을 유리섬유 또는 탄소섬유 등의 복합소재를 이용하여 3차원 브레이딩 기법으로 형성시킴에 따라, 판토그라프(20)의 중량을 종래 120kg의 1/4 수준인 30kg 정도로 경량화가 가능하게 된다. That is, the base frame 21, the lower frame 22, and the upper frame 23 made of metal, which occupy most of the weight of the pantograph 20, are three-dimensional using a composite material such as glass fiber or carbon fiber. By forming by the braiding technique, the weight of the pantograph 20 can be reduced to about 30 kg, which is about 1/4 of the conventional 120 kg.

따라서, 판토그라프(20)의 각 부재는 물론, 판토그라프(20)와 전기철도차량 결합부의 피로파괴발생을 감소시키고 금속재질의 특성에 따른 부식을 방지할 수 있게 된다. 뿐만 아니라, 지붕구조의 보강에 따른 전기철도차량의 중량 증가를 방지하여 초기기동 및 정지시 필요한 구동력 및 정지력 역시 감소시킬 수 있게 된다.Accordingly, the members of the pantograph 20 as well as the fatigue destruction of the coupling portion between the pantograph 20 and the electric railway vehicle can be reduced and corrosion can be prevented according to the characteristics of the metal material. In addition, it is possible to prevent the increase in weight of the electric railway vehicle according to the reinforcement of the roof structure to reduce the driving force and the stopping force required for the initial start and stop.

한편, 복합소재를 이용하여 각종 프레임(21, 22, 23)을 형성시키기 위한 3차원 브레이딩 기법은, 도 4 및 도 5에 도시된 바와 같이, 여러가닥의 섬유다발이 서 로 얽혀져서 만들어지는 직물제조법 중의 하나로서, 특히 3차원 브레이딩기법으로 제조되는 복합재료는 섬유가 평면은 물론 두께방향으로도 배열되기 때문에 적층복합재료에서 흔히 일어나는 층간 분리 현상을 방지할 수 있게 된다. 따라서, 충격강도나 손상 허용치가 현저하게 증가하게 된다.On the other hand, the three-dimensional braiding technique for forming the various frames (21, 22, 23) using a composite material, as shown in Figure 4 and 5, is made by intertwining several strands of fiber bundles As one of the fabric manufacturing methods, in particular, the composite material manufactured by the three-dimensional braiding technique can prevent the delamination which is common in the laminated composite material because the fibers are arranged not only in the plane but also in the thickness direction. Therefore, the impact strength and the damage tolerance are significantly increased.

또한, 섬유각도는 종축섬유를 사용할 경우에는 프리폼(preform)의 주축에 대하여 [0,θ]의 각도를 가지고 종축섬유를 사용하지 않을 경우에는 [θ]의 각도를 가지며 이러한 각도는 프리폼 당김속도를 조절하여 제어가 가능함은 물론, 섬유보빈(bobbin)을 배치하는 형상에 따라 프리폼의 단면 형상을 직각형 및 원형 등 다양한 형상으로 쉽게 제조할 수 있다.In addition, the fiber angle has an angle of [0, θ] with respect to the main axis of the preform when longitudinal fiber is used and an angle of [θ] when no longitudinal fiber is used. It is possible to control by controlling, of course, the cross-sectional shape of the preform can be easily manufactured in various shapes, such as rectangular and circular, depending on the shape of the fiber bobbin.

한편, 이상과 같은 3차원 브레이딩 기법으로 제작된 프리폼은 에폭시와 같은 수지에 함침시켜 오토클레이브나 상온에서 경화된다. On the other hand, the preform produced by the three-dimensional braiding technique as described above is impregnated in a resin such as epoxy is cured at autoclave or room temperature.

따라서, 3차원 브레이딩 기법에 의해 판토그라프(20)를 구성하는 베이스 프레임(21)과, 하부 프레임(22), 및 상부 프레임(23) 등을 제작하면 이음매 없이 일체형으로 제작이 가능하여 용접 및 소재의 절곡 등과 같은 추가작업이 불필요하므로 제작공정 및 제작비용을 절감 할 수 있고, 용접부에서 유발되는 강도저하 문제를 해결할 수 있게 된다.Therefore, if the base frame 21 constituting the pantograph 20, the lower frame 22, the upper frame 23 and the like by the three-dimensional braiding technique can be manufactured integrally and seamlessly welded and Since additional work such as bending of the material is unnecessary, the manufacturing process and manufacturing cost can be reduced, and the strength degradation problem caused by the welding part can be solved.

뿐만 아니라, 틸팅열차용 판토그라프(20)는 운행중 레일의 불규칙성에 의해 전달되는 수직방향의 진동에 노출됨은 물론, 곡선부에서는 수평방향의 진동에도 노출되므로, 이러한 진동에 대해 판토그라프(20)의 각종 프레임(21, 22, 23) 자체도 어느 정도의 진동 감쇠특성을 보유해야 하는데, 금속재의 경우에는 재료 자체의 감 쇠비가 약 0.0017 정도인 것에 비해, 탄소섬유/에폭시 복합재를 사용한 경우에는 약 0.016~0.03 정도로 금속재의 약 10 이상이다. In addition, the pantograph 20 for the tilting train is exposed not only to the vibration in the vertical direction transmitted by the irregularity of the rail during driving, but also to the vibration in the horizontal direction in the curved portion, so that the vibration of the pantograph 20 is The various frames 21, 22, and 23 themselves must also have some degree of vibration damping characteristics. In the case of metal materials, the damping ratio of the materials themselves is about 0.0017, whereas about 0.016 when carbon fiber / epoxy composites are used. It is about 10 or more of metal materials about -0.03.

따라서, 기존 판토그라프(20)에 비해 진동하중을 많이 받는 틸팅열차용 판토그라프(미도시)의 각종 프레임에 상술한 바와 같은 복합소재를 적용할 경우 무게절감, 내부식 및 내구성 향상, 및 제작공정 감소 등은 물론, 진동감쇠특성 역시 월등히 감소시킬 수 있는 이점이 있게 된다.Therefore, when the composite material as described above is applied to various frames of the pantograph (not shown) for a tilting train which receives more vibration load than the existing pantograph 20, weight reduction, corrosion resistance and durability improvement, and manufacturing process As well as the reduction, the vibration damping characteristics also have the advantage that can be significantly reduced.

단, 이상과 같이 3차원 브레이딩 기법에 의해 제작된 각종 프레임(21, 22, 23)의 종단부에는 부싱(bushing, 미도시)을 장치하여 금속재질로 이루어진 구성과의 결합시 마찰 등에 의한 자체 파손을 방지함은 물론, 상기 금속재질로 이루어진 구성과의 결합력을 더욱더 높일 수 있도록 하는 것이 바람직하며, 이러한 부싱은 3차원 브레이딩 기법에 의해 제작된 각종 프레임(21, 22, 23)의 종단부가 부싱의 외주면을 감싸도록 결합될 수도 있고, 각종 프레임(21, 22, 23)의 종단부가 부싱의 내부로 삽입 결합되는 등 다양한 결합형태가 사용될 수 있다.However, as described above, bushings (not shown) are attached to the end portions of the various frames 21, 22, and 23 manufactured by the three-dimensional braiding technique. In addition to preventing damage, it is desirable to further increase the bonding force with the metal material configuration, such bushing is the end of the various frames 21, 22, 23 made by the three-dimensional braiding technique It may be coupled to surround the outer circumferential surface of the bushing, and various coupling forms may be used such that end portions of various frames 21, 22, and 23 are inserted and coupled into the bushing.

이상에서 본 발명에 의한 복합소재를 적용한 전기철도차량용 판토그라프에 대해 설명하였다. 이러한 본 발명의 기술적 구성은 본 발명이 속하는 기술분야의 당업자가 본 발명의 그 기술적 사상이나 필수적 특징을 변경하지 않고서 다른 구체적인 형태로 실시될 수 있다는 것을 이해할 수 있을 것이다.The pantograph for an electric railway vehicle to which the composite material according to the present invention is applied has been described above. Such a technical configuration of the present invention will be understood by those skilled in the art that the present invention can be implemented in other specific forms without changing the technical spirit or essential features of the present invention.

그러므로, 이상에서 기술한 실시 예들은 모든 면에서 예시적인 것이며 한정적인 것이 아닌 것으로서 이해되어야 하고, 본 발명의 범위는 전술한 상세한 설명보다는 후술하는 특허청구범위에 의하여 나타내어지며, 특허청구범위의 의미 및 범 위 그리고 그 등가 개념으로부터 도출되는 모든 변경 또는 변형된 형태가 본 발명의 범위에 포함되는 것으로 해석되어야 할 것이다.Therefore, the above-described embodiments are to be understood in all respects as illustrative and not restrictive, and the scope of the present invention is indicated by the appended claims rather than the foregoing description, and the meanings of the claims and All changes or modifications derived from the scope and equivalent concepts thereof should be construed as being included in the scope of the present invention.

이상과 같은, 본 발명의 복합소재를 적용한 전기철도차량용 판토그라프에 의하면, 가공선과 접촉하여 전기에너지를 집전할 수 있도록 하되, 판토그라프를 구성하는 각종 프레임을 비금속 재질로 형성하여 판토그라프를 경량화 함에 따라 전기철도차량의 중량을 감소시키고, 나아가 전기철도차량의 진동 감쇄특성 및 부식에 대한 저항성을 향상시킬 수 있게 된다.As described above, according to the pantograph for an electric railway vehicle to which the composite material of the present invention is applied, it is possible to collect electrical energy in contact with the overhead line, and to reduce the pantograph by forming various frames constituting the pantograph with a non-metallic material. Accordingly, it is possible to reduce the weight of the electric railway vehicle, and further improve vibration damping characteristics and resistance to corrosion of the electric railway vehicle.

Claims (5)

가공선으로부터 전기에너지를 집전하기 위한 복합소재를 적용한 전기철도차량용 판토그라프에 있어서,In the pantograph for an electric railway vehicle applying a composite material for collecting electrical energy from the overhead line, 판토그라프의 프레임은 상기 전기철도차량의 상부에 결합 지지되는 베이스 프레임과, 일측이 상기 베이스 프레임과 연결된 하부 프레임, 및 상기 하부 프레임의 타측과 집전부 사이에 결합된 상부 프레임을 포함하여 이루어지고,The frame of the pantograph includes a base frame coupled to and supported by an upper portion of the electric railway vehicle, a lower frame connected to one side of the base frame, and an upper frame coupled between the other side and the current collector of the lower frame, 상기 프레임 중 어느 하나 이상은 3차원 브레이딩(3D braiding)기법으로 제조된, 유리섬유 또는 탄소섬유로 이루어진 복합소재로 이루어진 것을 특징으로 하는 복합소재를 적용한 전기철도차량용 판토그라프.At least one of the frame is a pantograph for applying a composite material, characterized in that made of a composite material made of glass fiber or carbon fiber, manufactured by a 3D braiding (3D braiding) technique. 삭제delete 제 1항에 있어서,The method of claim 1, 상기 3차원 브레이딩 기법으로 제조된 프레임의 양측 종단부에는 부싱이 장치되어 있는 것을 특징으로 하는 전기철도차량용 판토그라프.Pantograph for an electric railway vehicle, characterized in that the bushing is provided at both ends of the frame manufactured by the three-dimensional braiding technique. 삭제delete 제 3항에 있어서,The method of claim 3, wherein 상기 판토그라프는 틸팅열차용 판토그라프인 것을 특징으로 하는 복합소재를 적용한 전기철도차량용 판토그라프.The pantograph is a pantograph for an electric railway vehicle to which the composite material is applied, characterized in that the pantograph for the tilting train.
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US20130105264A1 (en) * 2011-10-26 2013-05-02 Caterpillar Inc. Pantograph assembly
FR3017829B1 (en) * 2014-02-24 2016-02-12 Faiveley Transp Tours PANTOGRAPH OF RAILWAY VEHICLE
CN105383306B (en) * 2015-12-08 2017-06-16 南车株洲电力机车有限公司 A kind of pantograph upper frame and pantograph structure

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Publication number Priority date Publication date Assignee Title
KR960017816A (en) * 1994-11-18 1996-06-17 유현식 Carbon fiber reinforced carbon composite material friction material manufacturing method
KR19990036144A (en) * 1995-08-08 1999-05-25 루프레흐트 클라우스 Movable Contact

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KR960017816A (en) * 1994-11-18 1996-06-17 유현식 Carbon fiber reinforced carbon composite material friction material manufacturing method
KR19990036144A (en) * 1995-08-08 1999-05-25 루프레흐트 클라우스 Movable Contact

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