JP6796470B2 - Bogies for railway vehicles and their manufacturing methods - Google Patents

Bogies for railway vehicles and their manufacturing methods Download PDF

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JP6796470B2
JP6796470B2 JP2016233862A JP2016233862A JP6796470B2 JP 6796470 B2 JP6796470 B2 JP 6796470B2 JP 2016233862 A JP2016233862 A JP 2016233862A JP 2016233862 A JP2016233862 A JP 2016233862A JP 6796470 B2 JP6796470 B2 JP 6796470B2
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side beam
central
plate
upper plate
bogie
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JP2018090039A (en
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信吾 井上
信吾 井上
克行 岩崎
克行 岩崎
雅己 小方
雅己 小方
高則 武石
高則 武石
剛 水崎
剛 水崎
光雄 中尾
光雄 中尾
啓 坂上
啓 坂上
成志 金森
成志 金森
智広 大塚
智広 大塚
伊藤　智広
智広 伊藤
此川　徹
徹 此川
伸久 ▲高▼田
伸久 ▲高▼田
拓門 八尾
拓門 八尾
悠太 西脇
悠太 西脇
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Nippon Sharyo Ltd
Hitachi Ltd
Central Japan Railway Co
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Hitachi Ltd
Central Japan Railway Co
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Description

本発明は、空気ばねを備える鉄道車両台車およびその製造方法に関する。 The present invention relates to a railroad vehicle bogie provided with an air spring and a method for manufacturing the same.

近年、鉄道車両（以下、車両と記すことがある。）については、曲線区間を通過する際の通過速度の向上、乗り心地レベルの改善を目的として、車体を曲線区間の内軌側に傾斜させる空気ばねを用いた車体傾斜式車両が採用されつつある。
車体傾斜式車両にあっては、車両の台車枠の上面に枕木方向に隔置して一対の空気ばねを設け、それらに高さ方向の伸縮差を設けることによって、空気ばねによって弾性支持される車体を傾斜させている。
一方、車両の台車枠は、様々な方向からの荷重強度に耐えられるように強固に製造されている。例えば、台車枠を構成する側梁および横梁をプレス成型等によって一体的に形成し、断面形状が逆Ｕ字状の上下に二分割された上枠および下枠を準備して、これらの逆Ｕ字状をなすフランジ部を上下に突き合わせて、突き合わせ部を溶接して製造されているものがある。
そして、台車枠の上枠をなす側梁のレール方向の中央部の上面に車体を弾性支持する空気ばねを配置し、空気ばねの直下の上枠と下枠とがなす空間（側梁の内部）に、空気ばねと連通する補助空気タンクを備えるものが提案されている。（特許文献１） In recent years, for railway vehicles (hereinafter sometimes referred to as rolling stock), the vehicle body is tilted toward the inner rail side of the curved section for the purpose of improving the passing speed and riding comfort level when passing through the curved section. Tilting trains using air springs are being adopted.
In the case of a tilting vehicle, a pair of air springs are provided on the upper surface of the bogie frame of the vehicle in the direction of the pillow, and they are elastically supported by the air springs by providing a difference in expansion and contraction in the height direction. The car body is tilted.
On the other hand, the bogie frame of a vehicle is strongly manufactured so as to withstand the load strength from various directions. For example, the side beams and cross beams constituting the bogie frame are integrally formed by press molding or the like, and an upper frame and a lower frame having an inverted U-shaped cross section divided into upper and lower frames are prepared, and these inverted Us are prepared. Some are manufactured by abutting the shaped flanges up and down and welding the butted parts.
Then, an air spring that elastically supports the vehicle body is arranged on the upper surface of the central portion of the side beam forming the upper frame of the bogie frame in the rail direction, and the space formed by the upper frame and the lower frame directly below the air spring (inside the side beam). ), Which is provided with an auxiliary air tank that communicates with an air spring has been proposed. (Patent Document 1)

特開２０００−８５５７９号公報Japanese Unexamined Patent Publication No. 2000-85579

空気ばねによる車体傾斜装置は、車体を弾性支持するという従来の機能に加えて、曲線通過時に空気ばねに圧力空気を給排気することによって空気ばねの高さ方向の伸縮差を得るため、圧力空気の消費量が増える傾向にある。
このため、空気ばねに接続する大きな容量を有する補助空気タンクを鉄道車両に床下に追設したり、既存の補助空気タンクの容量を拡大したりする等の施策が必要となる。 In addition to the conventional function of elastically supporting the vehicle body with an air spring, compressed air is used to obtain a difference in expansion and contraction in the height direction of the air spring by supplying and exhausting pressure air to the air spring when passing through a curve. Consumption tends to increase.
For this reason, it is necessary to take measures such as adding an auxiliary air tank having a large capacity to be connected to the air spring under the floor of the railway vehicle or expanding the capacity of the existing auxiliary air tank.

しかしながら、鉄道車両の床下には、主変圧器、主変換装置、空調換気装置、補助電源等の機器が既設されているため、鉄道車両の床下に十分な空間がなく補助空気タンク容量の拡大等が難しい場合があった。
さらに、大きな容量の補助空気タンクに代えて、床下の機器の隙間の空間等に、複数の小さな容量の補助空気タンクを備えると、補助空気タンクを鉄道車両の床下に取付ける工数が増加することに加えて、増設した補助空気タンクを接続する新たな空気配管を設置することに伴う工数が増加する等の課題があった。 However, since equipment such as a main transformer, a main converter, an air-conditioning ventilation device, and an auxiliary power supply are already installed under the floor of the railway vehicle, there is not enough space under the floor of the railway vehicle and the capacity of the auxiliary air tank is expanded. Was sometimes difficult.
Furthermore, if a plurality of small-capacity auxiliary air tanks are provided in the space between the equipment under the floor instead of the large-capacity auxiliary air tank, the man-hours for installing the auxiliary air tank under the floor of the railroad vehicle will increase. In addition, there are problems such as an increase in man-hours associated with installing a new air pipe for connecting the added auxiliary air tank.

本発明の目的は、空気ばね式車体傾斜装置を備える鉄道車両において、鉄道車両の床下の設計自由度を確保できるとともに、補助空気タンク等を車体へ取り付けるための作業工数等を小さくできる鉄道車両用台車とこの台車の製造方法を提供することである。 An object of the present invention is for a railway vehicle provided with an air spring type vehicle body tilting device, which can secure the degree of freedom in designing under the floor of the railway vehicle and can reduce the work man-hours for attaching the auxiliary air tank or the like to the vehicle body. It is to provide a dolly and a method of manufacturing this dolly.

上記課題を解決するために、代表的な本発明による鉄道車両用台車は、
台車枠が、レール方向に沿って隔置される一対の側梁と、
前記側梁のレール方向の中央部を接続するとともに枕木方向に沿って備えられる横梁とから構成されており、
前記一対の側梁は、それぞれ、レール方向の中央部に位置する中央部側梁と、前記中央部側梁のレール方向の両端部に位置する端部側梁と、から構成されており、
前記横梁には第１空気タンクが備えられ、前記中央部側梁には第２空気タンクが備えられ、
前記側梁は、側梁下板と、前記側梁下板の上面に載置されるとともに逆Ｕ字断面形状を有する中央部側梁上板と、前記側梁下板の上面に載置されるとともに前記中央部側梁上板の長手方向の両端部に接続する逆Ｕ字断面形状を有する端部側梁上板と、から構成され、
前記第２空気タンクは、前記側梁下板と、前記中央部側梁上板と、前記中央部側梁上板の長手方向の両端部に備えられる仕切り板と、によって区画される空間に形成され、
前記仕切り板は、前記中央部側梁上板及び前記側梁下板に気密溶接されている、
ことを特徴とする。 In order to solve the above problems, a typical railcar bogie according to the present invention is
A pair of side beams in which the bogie frame is separated along the rail direction,
It is composed of a cross beam that connects the central part of the side beam in the rail direction and is provided along the sleeper direction.
Each of the pair of side beams is composed of a central side beam located at the central portion in the rail direction and an end side beam located at both ends of the central side beam in the rail direction.
The cross beam is provided with a first air tank, and the central beam is provided with a second air tank .
The side beam is placed on the side beam lower plate, the upper surface of the side beam lower plate, the central side beam upper plate having an inverted U-shaped cross-sectional shape, and the upper surface of the side beam lower plate. It is also composed of an end side beam upper plate having an inverted U-shaped cross-sectional shape connected to both ends in the longitudinal direction of the central part side beam upper plate.
The second air tank is formed in a space partitioned by the side beam lower plate, the central side beam upper plate, and partition plates provided at both ends of the central side beam upper plate in the longitudinal direction. Being done
The partition plate is airtightly welded to the central side beam upper plate and the side beam lower plate.
It is characterized by that.

また、代表的な本発明による鉄道車両用台車の製造方法は、
側梁下板に、仕切り板を有する中央部側梁上板のフランジ部を溶接する工程、
前記仕切り板の下辺と前記側梁下板の上面とを溶接する工程、
前記側梁下板に、端部側梁上板のフランジ部を溶接する工程、
前記中央部側梁上板と前記端部側梁上板との突き合わせ部を溶接する工程、
前記側梁と前記横梁とを溶接する工程
からなることを特徴とする。 Further, a typical method for manufacturing a bogie for a railway vehicle according to the present invention is as follows.
The process of welding the flange of the central side beam upper plate with the partition plate to the side beam lower plate,
The process of welding the lower side of the partition plate and the upper surface of the side beam lower plate,
The process of welding the flange portion of the end side beam upper plate to the side beam lower plate,
A step of welding a butt portion between the central beam upper plate and the end beam upper plate.
It is characterized by comprising a step of welding the side beam and the cross beam.

本発明によれば、空気ばね式車体傾斜装置を備える鉄道車両において、鉄道車両の床下の設計自由度を確保できるとともに、補助空気タンク等を車体へ取り付けるための作業工数等を小さくできる鉄道車両用台車とこの台車の製造方法を提供することができる。
上記した以外の課題、構成及び効果は、以下の実施形態の説明により明らかにされる。 According to the present invention, in a railroad vehicle provided with an air spring type vehicle body tilting device, it is possible to secure the degree of freedom in designing the underfloor of the railway vehicle and to reduce the work man-hours for attaching the auxiliary air tank or the like to the vehicle body. A dolly and a method of manufacturing the dolly can be provided.
Issues, configurations and effects other than those described above will be clarified by the description of the following embodiments.

図１は、鉄道車両用台車の平面図である。FIG. 1 is a plan view of a bogie for railway vehicles. 図２は、鉄道車両用台車の台車枠の側面図である。FIG. 2 is a side view of the bogie frame of the bogie for railroad vehicles. 図３は、台車枠を構成する側梁の製造工程であって中央部側梁と下板とを接続する様子を示す模式図である。FIG. 3 is a schematic view showing a state in which the side beam constituting the bogie frame is manufactured and the central side beam and the lower plate are connected. 図４は、台車枠を構成する側梁の製造工程であって中央部側梁と下板とを接続する様子を図３に示すＡ側から見た模式図である。FIG. 4 is a schematic view of the manufacturing process of the side beams constituting the bogie frame and the state of connecting the central side beam and the lower plate as viewed from the A side shown in FIG. 図５は、台車枠を構成する側梁の製造工程であって中央部側梁を備える下板に端部側梁を接続する様子を示す模式図である。FIG. 5 is a schematic view showing a state in which the end side beam is connected to the lower plate provided with the central side beam in the manufacturing process of the side beam constituting the bogie frame. 図６は、空気ばねを利用した車体傾斜装置に係る空気配管系統図の模式図である。FIG. 6 is a schematic view of an air piping system diagram relating to a vehicle body tilting device using an air spring.

本発明の実施形態を、図を参照しながら説明する。まず、説明に供する各方向を定義する。鉄道車両用台車（以下、台車と記す）の長手（レール）方向をＸ方向、幅（枕木）方向をＹ方向、高さ方向をＺ方向とする。以下、単にＸ方向、Ｙ方向、Ｚ方向と記す。 An embodiment of the present invention will be described with reference to the drawings. First, each direction to be used for explanation is defined. The longitudinal (rail) direction of the bogie for railroad vehicles (hereinafter referred to as the bogie) is the X direction, the width (sleepers) direction is the Y direction, and the height direction is the Z direction. Hereinafter, they are simply referred to as X direction, Y direction, and Z direction.

図１は台車の平面図であり、図２は台車の台車枠の側面図である。台車１をなす台車枠１０は、Ｘ方向に沿って隔置される一対の側梁１２と、Ｙ方向に沿って備えられるとともに側梁１２のＸ方向の中央部を貫通する態様で備えられる一対の横梁１８を有する。車体を弾性支持する空気ばねが載置される空気ばね受座２６は、横梁１８のＹ方向の両端部と側梁１２のＸ方向の中央部とに接続する態様で台車枠１０に備えられる。 FIG. 1 is a plan view of the bogie, and FIG. 2 is a side view of the bogie frame of the bogie. The bogie frame 10 forming the bogie 1 is provided with a pair of side beams 12 separated along the X direction and a pair provided along the Y direction and penetrating the central portion of the side beams 12 in the X direction. It has a cross beam 18. The air spring receiving seat 26 on which the air spring that elastically supports the vehicle body is placed is provided on the bogie frame 10 in a manner of connecting both ends of the cross beam 18 in the Y direction and the central portion of the side beam 12 in the X direction.

横梁１８は円筒（パイプ）状の部材からなり、この円筒状部材は空気ばね２５に接続される第１空気タンクとして供される（図６参照）。横梁１８には、Ｘ方向に沿う態様で一対のツナギ梁１６が備えられ、主電動機を受ける主電動機受座２０、歯車箱を備える歯車箱吊受座２１やブレーキ装置受座２４も備えられる。側梁１２のＸ方向の両端部にはＺ方向の変位を抑制するダンパ（減衰器）が備えられるダンパ受座２８が備えられる。 The cross beam 18 is composed of a cylindrical (pipe) -shaped member, and this cylindrical member is provided as a first air tank connected to the air spring 25 (see FIG. 6). The cross beam 18 is provided with a pair of traction beams 16 in a manner along the X direction, and is also provided with a traction motor receiving seat 20 for receiving a traction motor, a gearbox hanging receiving seat 21 having a gearbox, and a braking device receiving seat 24. Damper receiving seats 28 provided with dampers (attenuators) for suppressing displacement in the Z direction are provided at both ends of the side beam 12 in the X direction.

台車枠１０を構成する側梁１２は、中央部側梁と中央部側梁のＸ方向の両端部に配置される端部側梁の３つの部分に分かれている。具体的な部材の構成で説明すると、側梁１２は、まず、側梁上板と側梁下板１４から構成されており、側梁上板は、Ｘ方向の中央部に備えられる中央部側梁上板１２ａと、この中央部側梁上板１２ａのＸ方向の両端部に接続される端部側梁上板１２ｂの３部品から構成される。また、側梁下板１４は、側梁１２のＸ方向に沿って備えられ、この側梁下板１４の上面に逆Ｕ字断面形状を有する側梁上板が溶接される構成となっている。 The side beams 12 constituting the bogie frame 10 are divided into three parts, a central side beam and an end side beam arranged at both ends of the central side beam in the X direction. Explaining the specific configuration of the members, the side beam 12 is first composed of a side beam upper plate and a side beam lower plate 14, and the side beam upper plate is provided on the central portion side in the central portion in the X direction. It is composed of three parts, a beam upper plate 12a and an end side beam upper plate 12b connected to both ends of the central side beam upper plate 12a in the X direction. Further, the side beam lower plate 14 is provided along the X direction of the side beam 12, and the side beam upper plate having an inverted U-shaped cross-sectional shape is welded to the upper surface of the side beam lower plate 14. ..

また、中央部側梁上板１２ａのＸ方向の両端部には、一対の仕切り板１５が備えられている。これにより、中央部側梁上板１２ａ、一対の仕切り板１５及び側梁下板１４によって閉鎖される空間が側梁１２に備えられ、側梁空気タンク３０（第２空気タンク）を構成する。（図３から図５参照） Further, a pair of partition plates 15 are provided at both ends of the central beam upper plate 12a in the X direction. As a result, the side beam 12 is provided with a space closed by the central side beam upper plate 12a, the pair of partition plates 15, and the side beam lower plate 14, and constitutes the side beam air tank 30 (second air tank). (See FIGS. 3 to 5)

図３は台車枠を構成する側梁の製造工程であって中央部側梁と下板とを接続する様子を示す模式図であり、図４は台車枠を構成する側梁の製造工程を示した模式図であり、中央部側梁と下板とを接続する様子を図３に示したＡ側から見た図となっている。つまり、Ｘ方向からＹＺ軸で構成される平面を見た図となっている。図５は台車枠を構成する側梁の製造工程を示した模式図であり、中央部側梁を接合した下板に、更に端部側梁を接続する様子を示す図である。以下では、図３から図５を参照して、台車（台車枠）の製造方法を説明する。 FIG. 3 is a schematic view showing a manufacturing process of the side beams constituting the bogie frame and connecting the central side beam and the lower plate, and FIG. 4 shows a manufacturing process of the side beams constituting the bogie frame. It is a schematic view, and is a view of connecting the central beam and the lower plate from the A side shown in FIG. That is, it is a view of a plane formed by the YZ axis from the X direction. FIG. 5 is a schematic view showing a manufacturing process of the side beams constituting the bogie frame, and is a diagram showing a state in which the end side beams are further connected to the lower plate to which the central side beams are joined. Hereinafter, a method of manufacturing a bogie (bogie frame) will be described with reference to FIGS. 3 to 5.

はじめに、側梁に設ける側梁空気タンク３０の容量（体積）を決定し、この空気タンク容積を得ることができるように、中央部側梁上板１２ａのＸ方向の両端部の内壁に仕切り板１５を固定する（図３）。仕切り板１５は、その仕切り板１５の上辺１５ａおよび垂直辺１５ｂを中央部側梁上板１２ａ（内壁）に気密溶接（溶接部７０）する（図４）。なお、必要に応じて、補強板１３を中央部側梁上板１２ａ（内壁）に溶接してもよい。 First, the capacity (volume) of the side beam air tank 30 provided on the side beam is determined, and partition plates are formed on the inner walls of both ends of the central side beam upper plate 12a in the X direction so that this air tank volume can be obtained. 15 is fixed (Fig. 3). The partition plate 15 is airtightly welded (welded portion 70) to the central beam upper plate 12a (inner wall) of the upper side 15a and the vertical side 15b of the partition plate 15 (FIG. 4). If necessary, the reinforcing plate 13 may be welded to the central beam upper plate 12a (inner wall).

次に、補強板１３および仕切り板１５を備える中央部側梁上板１２ａのフランジ部１２ｆを側梁下板１４の上面に載置した後、フランジ部１２ｆと側梁下板１４の上面とを気密溶接するとともに、仕切り板１５の下辺１５ｃを側梁下板１４の上面に気密溶接する。
次に、予め補強板１３が溶接された端部側梁上板１２ｂを、中央部側梁上板１２ａの両端部に位置決めして、中央部側梁上板１２ａと端部側梁上板１２ｂの突き合わせ部および端部側梁上板１２ｂのフランジ部と側梁下板１４の上面とを溶接する。 Next, after the flange portion 12f of the central side beam upper plate 12a provided with the reinforcing plate 13 and the partition plate 15 is placed on the upper surface of the side beam lower plate 14, the flange portion 12f and the upper surface of the side beam lower plate 14 are placed. In addition to airtight welding, the lower side 15c of the partition plate 15 is airtightly welded to the upper surface of the side beam lower plate 14.
Next, the end side beam upper plate 12b to which the reinforcing plate 13 is welded in advance is positioned at both ends of the central side beam upper plate 12a, and the central side beam upper plate 12a and the end side beam upper plate 12b are positioned. The butt portion and the flange portion of the end side beam upper plate 12b and the upper surface of the side beam lower plate 14 are welded.

側梁上板を、中央部側梁上板１２ａおよび一対の端部側梁上板１２ｂからなる３分割された構成とし、これらを順次側梁下板１４に接続する構成すること、さらに、中央部側梁上板１２ａの両端部に側梁空気タンクの容積を決める仕切り板１５を備えることによって、仕切り板１５の下辺１５ｃと側梁下板１４の上面との突き合わせ部を気密溶接することができる。これにより、仕切り板１５の位置によって、容量を任意に調整することができる側梁空気タンク３０を備えることができる。 The side beam upper plate is divided into three parts including a central side beam upper plate 12a and a pair of end side beam upper plates 12b, and these are sequentially connected to the side beam lower plate 14, and further, the center. By providing partition plates 15 that determine the volume of the side beam air tank at both ends of the side beam upper plate 12a, the abutting portion between the lower side 15c of the partition plate 15 and the upper surface of the side beam lower plate 14 can be airtightly welded. it can. As a result, the side beam air tank 30 whose capacity can be arbitrarily adjusted depending on the position of the partition plate 15 can be provided.

特に高速で運用される鉄道車両は、軌道への衝撃を緩和するとともに地盤振動を抑制するために軽量化が求められる。
本発明の側梁１２は、側梁下板１４の上面に、逆Ｕ字断面形状を有する端部側梁上板１２ｂおよび中央部側梁上板１２ａを溶接して構成される。側梁１２のＺ方向の寸法が徐々に小さくなるＢ部（図３参照）は、台車枠１０が車体を支持した場合に、大きな引張り応力が生じる部位である。側梁１２を構成する側梁下板１４に、局部的に高い引張り応力が生じないように、側梁下板１４のＢ部に対応する部分の板厚を側梁下板１４のＸ方向中央部の板厚より大きく設定するとともに側梁１２の信頼性を高めている。 In particular, railway vehicles operated at high speeds are required to be lighter in order to alleviate the impact on the track and suppress ground vibration.
The side beam 12 of the present invention is configured by welding an end side beam upper plate 12b and a central side beam upper plate 12a having an inverted U-shaped cross-sectional shape to the upper surface of the side beam lower plate 14. The portion B (see FIG. 3) in which the dimension of the side beam 12 in the Z direction gradually decreases is a portion where a large tensile stress is generated when the bogie frame 10 supports the vehicle body. The thickness of the portion of the side beam lower plate 14 corresponding to the B portion is set to the center of the side beam lower plate 14 in the X direction so that a high tensile stress is not locally generated on the side beam lower plate 14 constituting the side beam 12. The thickness of the side beam 12 is set to be larger than the plate thickness of the portion, and the reliability of the side beam 12 is improved.

また、端部側梁上板１２ｂと中央部側梁上板１２ａとの接続部が所定の強度を維持できるように、この接続部の近傍に対応する側梁下板１４の板厚（図３Ｃ部）を大きく設定している。さらに、この接続部の近傍に備えられるとともに補強板の機能を併せ持つ仕切り板１５の板厚を、必要に応じて他の補強板１３の板厚より大きく設定しても良い。
これらの上述した構成によって、側梁下板１４の上面に、逆Ｕ字断面形状を有する端部側梁上板１２ｂおよび中央部側梁上板１２ａが溶接される構成を有する台車枠１０が所定の強度および信頼性を備えることができる。 Further, the thickness of the side beam lower plate 14 corresponding to the vicinity of the connecting portion can be maintained at a predetermined strength so that the connecting portion between the end side beam upper plate 12b and the central side beam upper plate 12a can maintain a predetermined strength (FIG. 3C). Part) is set large. Further, the thickness of the partition plate 15 provided in the vicinity of the connecting portion and also having the function of the reinforcing plate may be set to be larger than the thickness of the other reinforcing plates 13 if necessary.
With these above-described configurations, a carriage frame 10 having a configuration in which an end side beam upper plate 12b having an inverted U-shaped cross-sectional shape and a central side beam upper plate 12a are welded to the upper surface of the side beam lower plate 14 is predetermined. Can have the strength and reliability of.

なお、側梁下板１４のＤ部の板厚を、Ｃ部の側梁下板１４の板厚と同じ板厚に設定している。これは、輪軸５を回動可能に保持する軸箱を側梁１２に弾性支持するとともに、Ｘ方向に沿って隔置される１対の１次（コイル）ばね８０を、容易に備えることができるように、一対の１次ばね８０の上端部が当接する側梁下板１４の下面の高さを揃えるためである（図５参照）。 The thickness of the D portion of the side beam lower plate 14 is set to be the same as the plate thickness of the side beam lower plate 14 of the C portion. This is to elastically support the axle box that rotatably holds the wheel set 5 to the side beam 12, and easily provide a pair of primary (coil) springs 80 that are spaced apart along the X direction. This is to make the heights of the lower surfaces of the side beam lower plates 14 with which the upper ends of the pair of primary springs 80 come into contact with each other (see FIG. 5).

図６は、空気ばねを利用した車体傾斜装置に係る空気配管系統図の模式図である。鉄道車両の床下には、高圧空気源（空気圧縮機）６０と、高圧空気源６０に接続する補助空気タンク４０が備えられる。そして、補助空気タンク４０は、高さ調整装置５２、空気ばね２５、台車枠１０の側梁１２に内蔵される第２空気タンクである側梁空気タンク３０に空気配管により直列に接続されている。
また、Ｙ方向に隔置される一対の空気ばね２５は、差圧弁２７を備える空気配管で接続されている。そして、高圧空気源（空気圧縮機）６０は、主空気タンク４２、車体傾斜装置５０、高さ調整装置５２に空気配管により直列に接続されている。さらに、主空気タンク４２は台車枠１０をなす横梁１８に備えられる第１空気タンクにも接続される。 FIG. 6 is a schematic view of an air piping system diagram relating to a vehicle body tilting device using an air spring. Under the floor of the railway vehicle, a high-pressure air source (air compressor) 60 and an auxiliary air tank 40 connected to the high-pressure air source 60 are provided. The auxiliary air tank 40 is connected in series to the side beam air tank 30, which is a second air tank built in the height adjusting device 52, the air spring 25, and the side beam 12 of the bogie frame 10, by an air pipe. ..
Further, the pair of air springs 25 separated in the Y direction are connected by an air pipe provided with a differential pressure valve 27. The high-pressure air source (air compressor) 60 is connected in series to the main air tank 42, the vehicle body tilting device 50, and the height adjusting device 52 by an air pipe. Further, the main air tank 42 is also connected to the first air tank provided in the cross beam 18 forming the bogie frame 10.

高さ調整装置５２は、乗客等の乗車率等によって車体の床面高さが変化してホームと車体の床面とに段差等が生じないように車体の高さを調整する機能を有する。側梁空気タンク３０と空気ばね２５とを接続する配管には、オリフィスが備えられており、空気ばね２５と側梁空気タンク３０とを行き来する空気の抵抗となって空気ばね２５に減衰力を付与している。
Ｙ方向に沿って隔置される一対の空気ばね２５を接続する空気配管に備えられる差圧弁２７は、空気ばね２５の内圧に顕著な差が生じて、輪軸５をなす各車輪の輪重（車輪がレールを押すＺ方向の荷重）にアンバランスが生じる輪重抜けの発生を抑制する機能を担う。
車体傾斜装置５０は、鉄道車両の位置情報（軌道の曲率情報）や速度情報に基づいて、鉄道車両を傾斜するタイミングと傾斜量（傾斜角度）を算出して、車体を傾斜させる圧力空気を、高さ調整装置５２を経由して空気ばね２５に給排気する機能を有する。 The height adjusting device 52 has a function of adjusting the height of the vehicle body so that the floor surface height of the vehicle body changes depending on the occupancy rate of passengers and the like so that a step or the like does not occur between the platform and the floor surface of the vehicle body. The pipe connecting the side beam air tank 30 and the air spring 25 is provided with an orifice, which acts as a resistance to the air flowing back and forth between the air spring 25 and the side beam air tank 30 and exerts a damping force on the air spring 25. It is given.
The differential pressure valve 27 provided in the air pipe connecting the pair of air springs 25 spaced along the Y direction has a significant difference in the internal pressure of the air springs 25, and the wheel weight of each wheel forming the wheel set 5 ( It has a function of suppressing the occurrence of wheel weight loss, which causes imbalance in the load in the Z direction in which the wheel pushes the rail.
The vehicle body tilting device 50 calculates the timing and amount of inclination (inclination angle) of the railway vehicle based on the position information (curvature information of the track) and the speed information of the railway vehicle, and applies the compressed air for tilting the vehicle body. It has a function of supplying and exhausting air to and from the air spring 25 via the height adjusting device 52.

従来、横梁１８に備えられる第１空気タンクと空気ばね２５とが接続されていた。このため車体傾斜装置５０の空気源となる主空気タンク４２のみで、車体傾斜装置５０に圧力空気を供給できる十分な大きさの容積を確保することが難しかった。
これに対して、本発明においては、第２空気タンクとして側梁空気タンク３０を備えたことから、空気ばね２５と横梁１８に備えられる第１空気タンクを接続するとともに、第２空気タンクである側梁空気タンク３０と主空気タンク４２を接続することができるので、主空気タンク４２の容積を大きくすることなく車体傾斜装置５０に供給できる十分な容積の圧力空気を備えることができる。 Conventionally, the first air tank provided in the cross beam 18 and the air spring 25 have been connected. For this reason, it has been difficult to secure a sufficient volume for supplying compressed air to the vehicle body tilting device 50 only with the main air tank 42 which is the air source of the vehicle body tilting device 50.
On the other hand, in the present invention, since the side beam air tank 30 is provided as the second air tank, the air spring 25 and the first air tank provided in the cross beam 18 are connected and the second air tank. Since the side beam air tank 30 and the main air tank 42 can be connected, it is possible to provide a sufficient volume of compressed air that can be supplied to the vehicle body tilting device 50 without increasing the volume of the main air tank 42.

このため、各種機器が既設されており十分な空間の確保が難しい鉄道車両の床下に大きな容積の主空気タンク設置する設計を回避できるとともに、大きな容積の主空気タンク設置に代えて複数の小さな容量の補助空気タンクを備えることによる補助空気タンクを設置するための工数や補助空気タンクを接続する新たな空気配管を設置する工数を削減できる。
したがって、空気ばね式車体傾斜装置を備える鉄道車両において、設計自由度を確保できるとともに、取り付け作業工数等を小さくできる鉄道車両用台車とこの台車の製造方法を提供することができる。 For this reason, it is possible to avoid the design of installing a large volume main air tank under the floor of a railroad vehicle where it is difficult to secure sufficient space because various devices are already installed, and instead of installing a large volume main air tank, multiple small capacities can be avoided. By providing the auxiliary air tank, the number of steps for installing the auxiliary air tank and the number of steps for installing a new air pipe for connecting the auxiliary air tank can be reduced.
Therefore, in a railroad vehicle provided with an air spring type body tilting device, it is possible to provide a bogie for a railroad vehicle and a method for manufacturing the bogie, which can secure a degree of design freedom and reduce the man-hours for installation work.

なお、本発明は上記した実施例に限定されるものではなく、様々な変形例が含まれる。上記した実施例は本発明を分かりやすく説明するために記載したものであり、必ずしも説明した全ての構成を備えるものに限定されるものではない。
例えば、台車枠の構成や個々の構造物の形状、部材の配置、空気配管系統、溶接等の部材の取り付け方法などは、車両の状況等に応じて適宜変更しうるものである。 The present invention is not limited to the above-mentioned examples, and includes various modifications. The above-mentioned examples are described for the purpose of explaining the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the configurations described.
For example, the configuration of the bogie frame, the shape of individual structures, the arrangement of members, the air piping system, the method of attaching members such as welding, and the like can be appropriately changed according to the situation of the vehicle and the like.

１…台車 ５…輪軸
１０…台車枠 １２…側梁
１２ａ…中央部側梁上板 １２ｂ…端部側梁上板
１２ｆ…フランジ部
１３…補強板 １４…側梁下板
１５…仕切り板 １５ａ…上辺
１５ｂ…垂直辺 １５ｃ…下辺
１８…横梁 １６…ツナギ梁
２０…主電動機受座 ２１…歯車箱吊受座
２４…ブレーキ装置受座
２５…空気ばね ２６…空気ばね受座
２７…差圧弁 ２８…ダンパ受座
３０…側梁空気タンク ４０…補助空気タンク
４２…主空気タンク ５０…車体傾斜装置
５２…高さ調整装置 ６０…高圧空気源（空気圧縮機）
７０…溶接部 ８０…１次（コイル）ばね 1 ... Bogie 5 ... Wheel shaft 10 ... Bogie frame 12 ... Side beam 12a ... Central side beam upper plate 12b ... End side beam upper plate 12f ... Flange part 13 ... Reinforcing plate 14 ... Side beam lower plate 15 ... Partition plate 15a ... Upper side 15b ... Vertical side 15c ... Lower side 18 ... Cross beam 16 ... Tsunagi beam 20 ... Main motor receiving seat 21 ... Gearbox hanging receiving seat 24 ... Brake device receiving seat 25 ... Air spring 26 ... Air spring receiving seat 27 ... Differential pressure valve 28 ... Damper seat 30 ... Side beam air tank 40 ... Auxiliary air tank 42 ... Main air tank 50 ... Body tilting device 52 ... Height adjusting device 60 ... High-pressure air source (air compressor)
70 ... Welded part 80 ... Primary (coil) spring

Claims (5)

空気ばね式車体傾斜装置用の空気タンクを備える鉄道車両用台車において、
台車枠が、レール方向に沿って隔置される一対の側梁と、
前記側梁のレール方向の中央部を接続するとともに枕木方向に沿って備えられる横梁とから構成されており、
前記一対の側梁は、それぞれ、レール方向の中央部に位置する中央部側梁と、前記中央部側梁のレール方向の両端部に位置する端部側梁と、から構成されており、
前記横梁には第１空気タンクが備えられ、前記中央部側梁には第２空気タンクが備えられ、
前記側梁は、側梁下板と、前記側梁下板の上面に載置されるとともに逆Ｕ字断面形状を有する中央部側梁上板と、前記側梁下板の上面に載置されるとともに前記中央部側梁上板の長手方向の両端部に接続する逆Ｕ字断面形状を有する端部側梁上板と、から構成され、
前記第２空気タンクは、前記側梁下板と、前記中央部側梁上板と、前記中央部側梁上板の長手方向の両端部に備えられる仕切り板と、によって区画される空間に形成され、
前記仕切り板は、前記中央部側梁上板及び前記側梁下板に気密溶接されている、
ことを特徴とする鉄道車両用台車。 In a railcar bogie equipped with an air tank for an air spring type body tilting device
A pair of side beams in which the bogie frame is separated along the rail direction,
It is composed of a cross beam that connects the central part of the side beam in the rail direction and is provided along the sleeper direction.
Each of the pair of side beams is composed of a central side beam located at the central portion in the rail direction and an end side beam located at both ends of the central side beam in the rail direction.
The cross beam is provided with a first air tank, and the central beam is provided with a second air tank .
The side beam is placed on the side beam lower plate, the upper surface of the side beam lower plate, the central side beam upper plate having an inverted U-shaped cross-sectional shape, and the upper surface of the side beam lower plate. It is also composed of an end side beam upper plate having an inverted U-shaped cross-sectional shape connected to both ends in the longitudinal direction of the central part side beam upper plate.
The second air tank is formed in a space partitioned by the side beam lower plate, the central side beam upper plate, and partition plates provided at both ends of the central side beam upper plate in the longitudinal direction. Being done
The partition plate is airtightly welded to the central side beam upper plate and the side beam lower plate.
A bogie for railroad vehicles that is characterized by this. 請求項１に記載される鉄道車両用台車において、
前記側梁の長手方向の中央部に位置する前記側梁下板の板厚は、前記側梁の長手方向に端部に向かって前記側梁の高さ寸法が変化する部位に備えられる前記側梁下板の板厚より小さいこと、
を特徴とする鉄道車両用台車。 In the bogie for railroad vehicles according to claim 1.
The thickness of the side beam lower plate located at the central portion in the longitudinal direction of the side beam is provided at a portion where the height dimension of the side beam changes toward the end in the longitudinal direction of the side beam. Being smaller than the thickness of the beam lower plate,
A bogie for railroad vehicles featuring. 請求項２に記載される鉄道車両用台車において、
前記側梁の長手方向の中央部に位置する前記側梁下板の板厚は、前記中央部側梁上板と
前記端部側梁上板との接続部の近傍に備えられる前記側梁下板の板厚より小さいこと、
を特徴とする鉄道車両用台車。 In the railcar bogie according to claim 2.
The plate thickness of the side beam lower plate located at the central portion in the longitudinal direction of the side beam is the same as that of the central portion side beam upper plate.
It is smaller than the thickness of the side beam lower plate provided in the vicinity of the connection portion with the end side beam upper plate.
A bogie for railroad vehicles featuring. 請求項３に記載される鉄道車両用台車において、
前記中央部側梁上板は、前記逆Ｕ字断面形状を維持するとともに強度を補強する補強板を有しており、
前記中央部側梁上板と前記端部側梁上板との接続部の近傍に備えられる前記仕切り板の板厚は、前記補強板の板厚よりも大きいこと、
を特徴とする鉄道車両用台車。 In the bogie for railroad vehicles according to claim 3.
The central beam upper plate has a reinforcing plate that maintains the inverted U-shaped cross-sectional shape and reinforces the strength.
The thickness of the partition plate provided in the vicinity of the connection portion between the central beam upper plate and the end side beam upper plate is larger than the thickness of the reinforcing plate.
A bogie for railroad vehicles featuring. 請求項１に記載される鉄道車両用台車の製造方法であって、
前記側梁下板に、前記中央部側梁上板のフランジ部を溶接する工程、
前記仕切り板の下辺と前記側梁下板の上面とを溶接する工程、
前記側梁下板に、前記端部側梁上板のフランジ部を溶接する工程、
前記中央部側梁上板と前記端部側梁上板との突き合わせ部を溶接する工程、
前記側梁と前記横梁とを溶接する工程
からなることを特徴とする、鉄道車両用台車の製造方法。 The method for manufacturing a bogie for a railroad vehicle according to claim 1 .
A process of welding the flange portion of the central side beam upper plate to the side beam lower plate,
The process of welding the lower side of the partition plate and the upper surface of the side beam lower plate,
A process of welding the flange portion of the end side beam upper plate to the side beam lower plate,
A step of welding a butt portion between the central beam upper plate and the end beam upper plate.
Step of welding the side beam and the cross beam
A method of manufacturing a bogie for railroad vehicles, which is characterized by being composed of .
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