JP2011148367A - Bogie for rolling stock - Google Patents

Bogie for rolling stock Download PDF

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JP2011148367A
JP2011148367A JP2010010195A JP2010010195A JP2011148367A JP 2011148367 A JP2011148367 A JP 2011148367A JP 2010010195 A JP2010010195 A JP 2010010195A JP 2010010195 A JP2010010195 A JP 2010010195A JP 2011148367 A JP2011148367 A JP 2011148367A
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bearing
frame
frames
sleeper
bogie
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JP5524634B2 (en
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Takeshi Miyamoto
岳史 宮本
Eiichi Maehashi
栄一 前橋
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Railway Technical Research Institute
公益財団法人鉄道総合技術研究所
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    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T30/00Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bogie for rolling stock excellent in followability of wheels to a track while assuring riding comfort and high-speed running performance. <P>SOLUTION: The bogie 1 for rolling stock including a pair of side frames 30, 40 extending substantially in the vehicle traveling direction and disposed so as to depart from each other in the sleeper direction, axle box supporting devices arranged in the side frames and supporting axle boxes 20 supporting ends of wheel sets 10 through axle springs S, and a cross beam 50 extending in the sleeper direction and connecting middle parts of the pair of side frames with each other is configured to be provided with a bearing part 60 allowing the right and left side frames to relatively rotate around a rotation axis oriented substantially in the sleeper direction. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

本発明は、鉄道車両用の台車に関し、特に乗り心地及び高速走行性能を確保しつつ軌道の不整に対する追従性が良好なものに関する。   The present invention relates to a bogie for a railway vehicle, and more particularly to a bogie having good trackability with respect to track irregularity while ensuring riding comfort and high-speed running performance.

鉄道車両に設けられる走行装置であるボギー台車は、一般に強固な実質剛体として形成された台車枠を備えている。台車枠には、車輪及び車軸を結合した輪軸を保持する軸箱が、軸バネ(1次バネ)を有する軸箱支持装置によって取り付けられる。軸バネは、振動衝撃吸収のほか、軌道の不整や平面性ねじれに車輪を追従させる役割をもつ。また、台車枠と車体との間には、車体を支持する枕バネ(2次バネ)が設けられている。
従来の鉄道車両用台車の一例を示すものとして、例えば特許文献1には、台車枠1と軸箱2との間に軸ばね5を配設した鉄道車両用台車が記載されている。
また、鉄道車両用台車の他の形態として、台車枠の左右の側枠と、これらを連結する横梁状の揺れ枕とを枕バネ等の弾性体を介して連結するとともに、左右の側枠が捻れる方向に相対変位可能とし、軸箱を側枠に固定した3ピース台車が貨車等に用いられている。
A bogie truck, which is a traveling device provided in a railway vehicle, generally includes a carriage frame formed as a strong substantial rigid body. An axle box that holds a wheel shaft and an axle that combines the axle is attached to the carriage frame by an axle box support device having an axle spring (primary spring). In addition to absorbing vibration and impact, the shaft spring has the role of causing the wheel to follow irregular tracks and planar torsion. A pillow spring (secondary spring) that supports the vehicle body is provided between the carriage frame and the vehicle body.
As an example of a conventional railway vehicle carriage, for example, Patent Document 1 discloses a railway carriage carriage in which a shaft spring 5 is disposed between a carriage frame 1 and a axle box 2.
In addition, as another form of the railcar bogie, the left and right side frames of the bogie frame and the horizontal beam-like rocking pillow that connects them are connected via an elastic body such as a pillow spring, and the left and right side frames are A three-piece cart that can be relatively displaced in a twisting direction and has a shaft box fixed to a side frame is used for a freight car or the like.

特開2007−203952号公報JP 2007-203952 A

鉄道の軌道には、列車の繰り返し通過や自然現象に起因して予測不可能な不整が生じる場合がある。また、曲線の出入口には、左右レールの高度差(カント)が連続的に変化するカント逓減区間が設けられている。このような箇所においては、台車内の輪重アンバランスの悪化並びにこれに起因する低速乗り上がり脱線等が懸念される。このような傾向は、特に、軸バネのバネ定数が高い場合、ストロークが短い場合や、乗客等が少なく軸重が軽い場合に顕著となる。これに対して、軸バネのバネ定数を低下させると、特に高速列車の場合にはピッチングが問題となる。   Railroad tracks may have unpredictable irregularities due to repeated passage of trains and natural phenomena. Further, at the entrance / exit of the curve, there is a cant decreasing section in which the altitude difference (cant) between the left and right rails continuously changes. In such a place, there is a concern about deterioration of wheel load imbalance in the carriage and low-speed climbing derailment resulting from this. Such a tendency becomes prominent particularly when the spring constant of the shaft spring is high, when the stroke is short, or when the number of passengers is small and the shaft weight is light. On the other hand, when the spring constant of the shaft spring is lowered, pitching becomes a problem particularly in the case of a high-speed train.

一方、上述した3ピース台車のように左右の側枠が枕バネの変形によって捻れるように構成した場合、軌道不整への対応性は良好となるが、軸バネを持たないため乗り心地や高速走行性能が劣り旅客車両、高速車両への適用は困難である。また、左右側枠を枕バネを介して連結しているため、結合部にガタが存在し、例えば左右側枠が平行四辺形状に変形する場合があり、この点からも高速走行には不適である。
さらに、台車枠中央の横梁の捻り剛性を低下させて左右の側枠が相対変位しやすくすることも提案されているが、車体の荷重を支えて車両を走行させるという台車の機能上、十分なねじれを許容させるまで剛性を低下させることは強度確保のため非常に困難である。
On the other hand, when the left and right side frames are twisted by the deformation of the pillow spring as in the above-described three-piece cart, the compatibility with the track irregularity is good, but since there is no axial spring, the ride comfort and high speed are improved. The running performance is inferior and it is difficult to apply to passenger vehicles and high-speed vehicles. In addition, since the left and right side frames are connected via pillow springs, there is a backlash in the joint, and for example, the left and right side frames may be deformed into a parallelogram, which is also unsuitable for high-speed running. is there.
In addition, it has been proposed to reduce the torsional rigidity of the horizontal beam in the center of the bogie frame so that the left and right side frames can be displaced relatively easily, but it is sufficient for the function of the bogie to run the vehicle while supporting the load of the car body. It is very difficult to reduce the rigidity until torsion is permitted in order to ensure strength.

上述した問題に鑑み、本発明の課題は、乗り心地及び高速走行性能を確保しつつ軌道に対する車輪の追従性が良好な鉄道車両用台車を提供することである。   In view of the above-described problems, an object of the present invention is to provide a railcar bogie that ensures good ride quality and high-speed running performance and has good wheel followability with respect to a track.

上記の課題を解決するため、本発明の鉄道車両用台車は、実質的に車両進行方向に沿って伸びるとともに枕木方向に離間して配置された一対の側枠と、前記側枠に設けられ輪軸の端部を保持する軸箱を軸バネを介して支持する軸箱支持装置と、実質的に枕木方向に沿って伸び前記一対の側枠の中間部間を連結する横梁とを備える鉄道車両用台車であって、左右の前記側枠を実質的に枕木方向に沿った回転軸回りに相対回転可能とする軸受部が設けられることを特徴とする。
本発明によれば、軌道高さの不整やカント逓減区間のような軌道のねじれが存在する場合であっても、左右の側枠が軸受部の回転軸回りに相対回転することによって、車輪の軌道に対する追従性を高め、輪重抜けを防止して低速乗り上がり脱線を防止することができる。
また、既存の貨車用3ピース台車と異なり、側枠と軸箱との間に軸バネを有する軸箱支持装置が設けられることから、軌道から車体への振動伝播を低減して乗り心地を確保でき、旅客用車両にも適用することができる。
さらに、軸バネのバネ定数を過度に低下させたりストロークを過度に長くしなくても軌道への追従性を確保できることから、軸バネのバネ定数が低い場合に発生しやすいピッチングを抑制することができ、高速で走行する車両にも適用することができる。
また、旅客や積載物が少ないことによって車両の重量が軽く、軸バネが延びきった状態であっても車輪の軌道に対する追従性を確保することができる。
In order to solve the above-described problem, a railcar bogie of the present invention includes a pair of side frames that extend substantially along the vehicle traveling direction and are spaced apart from each other in the sleeper direction, and a wheel shaft that is provided on the side frame. A rail box comprising: an axle box supporting device that supports an axle box that holds the end of the pair of axles via an axle spring; and a transverse beam that extends substantially along the direction of the sleeper and connects between the intermediate portions of the pair of side frames. A cart is provided with a bearing portion that allows the left and right side frames to relatively rotate about a rotation axis substantially along a sleeper direction.
According to the present invention, the left and right side frames relatively rotate around the rotation axis of the bearing portion even when there is an irregular track height or a torsion of the track such as a cant diminishing section. It is possible to improve the followability to the track, to prevent wheel weight loss and to prevent derailment after getting on at a low speed.
In addition, unlike the existing three-piece truck for freight cars, an axle box support device with an axle spring is provided between the side frame and the axle box, thus reducing the vibration propagation from the track to the vehicle body and ensuring a comfortable ride. It can also be applied to passenger vehicles.
Furthermore, since it is possible to ensure followability to the track without excessively reducing the spring constant of the shaft spring or making the stroke excessively long, it is possible to suppress pitching that tends to occur when the spring constant of the shaft spring is low. It can also be applied to a vehicle traveling at high speed.
Further, since the number of passengers and loads is small, the weight of the vehicle is light and the followability of the wheels to the track can be ensured even when the shaft spring is fully extended.

本発明において、前記横梁は前記一対の側枠のうち一方の側枠に結合され、前記軸受部は、前記一対の側枠のうち他方の側枠に設けられ、前記横梁の突端部が支持される構成とすることができる。
これによれば、軸受が1つでよいことから構造の簡素化、軽量化、低コスト化を図ることができる。
また、本発明において、前記軸受部は前記一対の側枠にそれぞれ設けられ、前記横梁の両端部がそれぞれ支持される構成とすることができる。
これらの場合において、前記横梁の中間部分は、実質的に枕木方向に沿って伸びるとともに車両進行方向に配列された複数の梁状部材によって構成される構成とすることができる。
これによれば、複数の梁状部材の間隔に例えばZリンク式等の既存の牽引装置を配置することができ、既存の鉄道車両に対して容易に適用することができる。
In the present invention, the transverse beam is coupled to one side frame of the pair of side frames, the bearing portion is provided on the other side frame of the pair of side frames, and the protruding end portion of the transverse beam is supported. It can be set as a structure.
According to this, since only one bearing is required, the structure can be simplified, the weight can be reduced, and the cost can be reduced.
In the present invention, the bearing portion may be provided on each of the pair of side frames, and both end portions of the transverse beam may be supported.
In these cases, the intermediate portion of the transverse beam can be configured by a plurality of beam-like members that extend substantially along the sleeper direction and are arranged in the vehicle traveling direction.
According to this, an existing traction device such as a Z-link type can be disposed in the interval between the plurality of beam-like members, and can be easily applied to an existing railway vehicle.

また、本発明において、前記横梁は、前記一対の側枠にそれぞれ固定され実質的に枕木方向に沿って軌道中心線側に延びた第1部材及び第2部材と、前記第1部材及び前記第2部材の連結部に設けられた中間部材とを有し、前記軸受部は前記中間部材に設けられ前記第1部材及び前記第2部材をそれぞれ支持する第1軸受及び第2軸受を有する構成とすることができる。   In the present invention, the transverse beam is fixed to the pair of side frames, and extends substantially toward the track center line along the sleeper direction, and the first member and the first member. An intermediate member provided at a connecting portion of two members, and the bearing portion includes a first bearing and a second bearing provided on the intermediate member and supporting the first member and the second member, respectively. can do.

以上のように、本発明によれば、乗り心地及び高速走行性能を確保しつつ軌道に対する車輪の追従性が良好な鉄道車両用台車を提供することができる。   As described above, according to the present invention, it is possible to provide a railcar bogie with good wheel followability with respect to a track while ensuring riding comfort and high-speed running performance.

本発明を適用した鉄道車両用台車の第1実施形態の模式的三面図である。図1(b)及び図1(c)はそれぞれ図1(a)のb−b部、c−c部矢視図である。(図3,5,7において同じ)BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic three-view diagram of a first embodiment of a railway vehicle carriage to which the present invention is applied. 1 (b) and 1 (c) are views taken along arrows bb and cc of FIG. 1 (a), respectively. (Same for FIGS. 3, 5 and 7) 図1の鉄道車両用台車の模式的分解斜視図である。FIG. 2 is a schematic exploded perspective view of the railcar bogie shown in FIG. 1. 本発明を適用した鉄道車両用台車の第2実施形態の模式的三面図である。It is a typical three-view figure of 2nd Embodiment of the bogie for railway vehicles to which this invention is applied. 図3の鉄道車両用台車の模式的分解斜視図である。FIG. 4 is a schematic exploded perspective view of the railcar bogie shown in FIG. 3. 本発明を適用した鉄道車両用台車の第3実施形態の模式的三面図である。It is a typical three-view figure of 3rd Embodiment of the bogie for rail vehicles to which this invention is applied. 図5の鉄道車両用台車の模式的分解斜視図である。FIG. 6 is a schematic exploded perspective view of the railcar bogie shown in FIG. 5. 本発明を適用した鉄道車両用台車の第4実施形態の模式的三面図である。It is a typical three-view figure of 4th Embodiment of the bogie for rail vehicles to which this invention is applied. 図7の鉄道車両用台車の模式的分解斜視図である。FIG. 8 is a schematic exploded perspective view of the railcar bogie shown in FIG. 7.

以下、図面を参照しつつ、本発明の第1乃至第4実施形態に係る鉄道車両用台車について説明する。
<第1実施形態>
第1実施形態の鉄道車両用台車(以下単に台車と称する)1は、図1、図2に示すように、1台車あたり2軸のボギー台車である。台車1は、図示しない車体に、1車両あたり例えば2台が鉛直軸回りに回転可能(ボギー角付与可能)に装着されている。
Hereinafter, a railcar bogie according to first to fourth embodiments of the present invention will be described with reference to the drawings.
<First Embodiment>
A railcar bogie (hereinafter simply referred to as a bogie) 1 of the first embodiment is a bogie bogie with two axes per bogie as shown in FIGS. For example, two trolleys 1 are mounted on a vehicle body (not shown) so as to be rotatable about a vertical axis (providing a bogie angle).

台車1は、輪軸10(図2では図示しない)、軸箱20、第1側枠30、第2側枠40、横梁50、軸受部60、枕バネ70のほか、図示しない牽引装置、ブレーキ装置、電動機等を備えて構成されている。   The carriage 1 includes a wheel shaft 10 (not shown in FIG. 2), a shaft box 20, a first side frame 30, a second side frame 40, a cross beam 50, a bearing portion 60, a pillow spring 70, a traction device and a brake device (not shown). And an electric motor or the like.

輪軸10は、左右軌道上を走行する車輪11を車軸12に圧入して構成され、その他図示しない歯車、ブレーキディスク等が設けられる。
軸箱20は、輪軸10の両端部に設けられ、車軸12のジャーナル部を回転可能に支持する軸受及びこれを潤滑する潤滑装置等を備えている。軸箱20は、1次バネである軸バネSを含む公知の軸箱支持装置を介して、第1側枠30、第2側枠40の下部に取り付けられている。
The wheel shaft 10 is configured by press-fitting a wheel 11 traveling on a left and right track into an axle 12, and is provided with a gear, a brake disk, and the like (not shown).
The axle box 20 is provided with both ends of the wheel shaft 10, and includes a bearing that rotatably supports the journal portion of the axle 12, a lubrication device that lubricates the bearing, and the like. The axle box 20 is attached to the lower part of the first side frame 30 and the second side frame 40 via a known axle box support device including an axle spring S that is a primary spring.

第1側枠30、第2側枠40、横梁50は、協働して台車1の主要構造部材である台車枠を構成するものである。
第1側枠30及び第2側枠40は、車両の進行方向にほぼ沿って延びた梁状に形成されるとともに、左右車輪11を挟んで枕木方向に離間し平行に配置されている。
第1側枠30及び第2側枠40は、その中間部31,41が両端部32,42に対して段違い状に低くされており、横梁50、軸受部60はこの中間部41に設けられる。また、軸箱20を支持する軸箱支持装置は、第1側枠30及び第2側枠40の両端部32,42における下部に取り付けられている。
また、第1側枠30及び第2側枠40の中間部31,41の上面部には、枕バネ70の受け皿となるバネ座33,43が設けられている。
The first side frame 30, the second side frame 40, and the cross beam 50 form a cart frame that is a main structural member of the cart 1 in cooperation.
The first side frame 30 and the second side frame 40 are formed in a beam shape extending substantially along the traveling direction of the vehicle, and are spaced apart and arranged in parallel with the left and right wheels 11 in the sleeper direction.
In the first side frame 30 and the second side frame 40, the intermediate portions 31 and 41 are lowered stepwise with respect to the both end portions 32 and 42, and the cross beam 50 and the bearing portion 60 are provided in the intermediate portion 41. . The axle box support device that supports the axle box 20 is attached to lower portions of both end portions 32 and 42 of the first side frame 30 and the second side frame 40.
In addition, spring seats 33 and 43 serving as trays for the pillow spring 70 are provided on the upper surface portions of the intermediate portions 31 and 41 of the first side frame 30 and the second side frame 40.

横梁(中梁)50は、枕木方向に沿って延び、第1側枠30及び第2側枠40を連結する梁状の部材である。横梁50は、第1梁状部51、第2梁状部52、連結部53、回転軸部54等を備えて構成されている。
第1梁状部51及び第2梁状部52は、横梁50の主要部を構成する部分である。第1梁状部51及び第2梁状部52は、枕木方向に伸びた円柱状の部材であって、車両の進行方向に並べて配置されている。第1梁状部51及び第2梁状部52の第1側枠30側の端部は、第1側枠30の中間部31に、例えば溶接等によって結合されている。
連結部53は、第1梁状部51及び第2梁状部52の第2側枠40側の端部に設けられた例えばボックス状の構造体である。第1梁状部51及び第2梁状部52の第2側枠40側の端部は、連結部53の側面部(第1側枠30と対向する面部)に、例えば溶接等によって結合されている。
回転軸部54は、連結部53の第2側枠40側の面部から枕木方向に沿って突出して形成された円柱状の部材である。
The horizontal beam (medium beam) 50 is a beam-shaped member that extends along the sleeper direction and connects the first side frame 30 and the second side frame 40. The horizontal beam 50 includes a first beam-shaped portion 51, a second beam-shaped portion 52, a connecting portion 53, a rotating shaft portion 54, and the like.
The first beam-like part 51 and the second beam-like part 52 are parts constituting the main part of the horizontal beam 50. The first beam-like portion 51 and the second beam-like portion 52 are columnar members extending in the sleeper direction, and are arranged side by side in the traveling direction of the vehicle. The ends of the first beam-like portion 51 and the second beam-like portion 52 on the first side frame 30 side are coupled to the intermediate portion 31 of the first side frame 30 by, for example, welding.
The connecting portion 53 is, for example, a box-like structure provided at the end of the first beam-like portion 51 and the second beam-like portion 52 on the second side frame 40 side. The end portions of the first beam-like portion 51 and the second beam-like portion 52 on the second side frame 40 side are coupled to the side surface portion (surface portion facing the first side frame 30) of the connecting portion 53 by, for example, welding or the like. ing.
The rotating shaft portion 54 is a columnar member formed so as to protrude along the sleeper direction from the surface portion of the connecting portion 53 on the second side frame 40 side.

軸受部60は、第2側枠40の中央部41に設けられた例えば円筒ころ軸受、円錐ころ軸受等のラジアル転がり軸受である。軸受部60は、第1側枠30と第2側枠40とを、枕木方向に沿った回転軸回りに回転可能に支持するものである。
軸受部60は、第2側枠に固定された外輪、及び、外輪に対して枕木方向に沿った回転軸回りに回転可能に支持されるとともに、横梁50の回転軸部54が挿入される内輪を備えている。
また、横梁50の回転軸部54と軸受部60との間には、公知の抜け止め手段が設けられている。
The bearing portion 60 is a radial rolling bearing such as a cylindrical roller bearing or a tapered roller bearing provided in the central portion 41 of the second side frame 40. The bearing part 60 supports the 1st side frame 30 and the 2nd side frame 40 so that rotation is possible around the rotating shaft along a sleeper direction.
The bearing portion 60 is supported by the outer ring fixed to the second side frame and rotatably around the rotation axis along the sleeper direction with respect to the outer ring, and the inner ring into which the rotation shaft portion 54 of the cross beam 50 is inserted. It has.
Further, a known retaining means is provided between the rotary shaft portion 54 of the cross beam 50 and the bearing portion 60.

枕バネ70は、第1側枠30及び第2側枠40のバネ座33,43の上部にそれぞれ設けられている。
枕バネ70は、車体の重量を支えるとともに、台車枠から車体側への振動伝達を軽減する空気バネである。
The pillow springs 70 are provided on the upper portions of the spring seats 33 and 43 of the first side frame 30 and the second side frame 40, respectively.
The pillow spring 70 is an air spring that supports the weight of the vehicle body and reduces vibration transmission from the carriage frame to the vehicle body side.

以上説明した第1実施形態によれば、軌道高さの不整やカント逓減区間のような軌道のねじれが存在する場合であっても、第1側枠30と第2側枠40とが軸受部60の回転軸回りに相対回転することによって、車輪11の軌道に対する追従性を高め、輪重抜けを防止して低速乗り上がり脱線を防止することができる。
また、既存の貨車用3ピース台車と異なり、第1側枠30、第2側枠40と軸箱20との間に軸バネSを有する軸箱支持装置が設けられることから、軌道から車体への振動伝播を低減して乗り心地を確保でき、旅客用車両にも適用することができる。
さらに、軸バネSのバネ定数を過度に低下させなくても軌道への追従性を確保できることから、軸バネのバネ定数が低い場合に発生しやすいピッチングを抑制することができ、高速で走行する車両にも適用することができる。
また、旅客や積載物が少ないことによって車両の重量が軽く、軸バネSが延びきった状態であっても車輪11の軌道に対する追従性を確保することができる。
また、軸受部60が一箇所でよいことから、構造の簡素化、軽量化、低コスト化を図ることができる。さらに、軸受部60には従来の貨車用3ピース台車の結合部のようにガタが発生しにくいことから、メインテナンスの省力化も図ることができる。
また、横梁50等の台車枠を構成する各部材にかかる台車枠のねじれによる応力を軽減することができるため、例えば繊維強化樹脂(FRP)やアルミニウム等の軽量な材料を適用することができ、台車の軽量化を図ることができる。
According to the first embodiment described above, the first side frame 30 and the second side frame 40 are connected to the bearing portion even when there is an irregular track height or a twist of the track such as a cant diminishing section. By relatively rotating around the rotation axis 60, it is possible to improve followability of the wheels 11 with respect to the track, to prevent wheel weight loss and to prevent derailment after getting on at low speed.
Further, unlike the existing three-piece cart for freight cars, a shaft box support device having a shaft spring S is provided between the first side frame 30, the second side frame 40 and the shaft box 20, so that from the track to the vehicle body. It is possible to secure the ride comfort by reducing the vibration propagation of the vehicle, and it can also be applied to passenger vehicles.
Furthermore, since trackability can be ensured without excessively reducing the spring constant of the shaft spring S, pitching that tends to occur when the spring constant of the shaft spring is low can be suppressed, and the vehicle can travel at high speed. It can also be applied to vehicles.
Further, since the number of passengers and loads is small, the weight of the vehicle is light, and even when the shaft spring S is fully extended, the followability of the wheels 11 to the track can be ensured.
In addition, since only one bearing portion 60 is required, the structure can be simplified, the weight can be reduced, and the cost can be reduced. Further, since the bearing portion 60 is less likely to be rattled unlike the connecting portion of a conventional three-piece carriage for a freight car, maintenance labor can be saved.
Further, since stress due to twisting of the bogie frame applied to each member constituting the bogie frame such as the cross beam 50 can be reduced, for example, a lightweight material such as fiber reinforced resin (FRP) or aluminum can be applied. The weight of the cart can be reduced.

<第2実施形態>
次に、本発明を適用した鉄道車両用台車の第2実施形態について説明する。なお、以下説明する各実施形態において、上述した第1実施形態と実質的に共通する箇所については同じ符号を付して説明を省略し、主に相違点について説明する。
Second Embodiment
Next, a second embodiment of the railway vehicle carriage to which the present invention is applied will be described. In each embodiment described below, portions that are substantially the same as those in the first embodiment described above are denoted by the same reference numerals, description thereof is omitted, and differences are mainly described.

第2実施形態の台車2は、第1実施形態の台車1における横梁50及び軸受部60に代えて、以下説明する横梁250及び軸受部261,262を備えている。
横梁250は、例えば、枕木方向に沿って伸びた円柱状の部材である。横梁250の両端には、回転軸部251,252がそれぞれ形成されている。
The cart 2 of the second embodiment includes a lateral beam 250 and bearing portions 261 and 262 described below, instead of the lateral beam 50 and the bearing portion 60 in the cart 1 of the first embodiment.
The cross beam 250 is, for example, a cylindrical member extending along the sleeper direction. Rotating shaft portions 251 and 252 are formed at both ends of the horizontal beam 250, respectively.

軸受部261,262は、第1実施形態の軸受部60と実質的に同様の構成を備え、第1側枠30及び第2側枠40の中間部31,41にそれぞれ設けられている。
軸受部261は、横梁250の回転軸部251を、第1側枠30に対して枕木方向に沿った回転軸回りに回転可能に支持するものである。
軸受部262は、横梁250の回転軸部252を、第2側枠40に対して枕木方向に沿った回転軸回りに回転可能に支持するものである。
以上説明した第2実施形態によれば、上述した第1実施形態の効果と同様の効果に加え、軌道の不整等によって第1側枠30、第2側枠40が回転した場合であっても、横梁250は回転しないので牽引装置やその他の装置類に影響を及ぼすことがない。
The bearing portions 261 and 262 have substantially the same configuration as the bearing portion 60 of the first embodiment, and are provided in the intermediate portions 31 and 41 of the first side frame 30 and the second side frame 40, respectively.
The bearing portion 261 supports the rotation shaft portion 251 of the cross beam 250 so as to be rotatable around the rotation axis along the sleeper direction with respect to the first side frame 30.
The bearing portion 262 supports the rotation shaft portion 252 of the cross beam 250 so as to be rotatable around the rotation axis along the sleeper direction with respect to the second side frame 40.
According to the second embodiment described above, in addition to the same effects as those of the first embodiment described above, even when the first side frame 30 and the second side frame 40 are rotated due to irregularities in the trajectory or the like. Since the cross beam 250 does not rotate, it does not affect the traction device or other devices.

<第3実施形態>
次に、本発明を適用した鉄道車両用台車の第3実施形態について説明する。
第3実施形態の台車3は、第1実施形態の台車1における横梁50及び軸受部60に代えて、以下説明する横梁350及び連結部360を備えている。
<Third Embodiment>
Next, a description will be given of a third embodiment of a railway vehicle carriage to which the present invention is applied.
The cart 3 of the third embodiment includes a lateral beam 350 and a connecting portion 360 described below instead of the lateral beam 50 and the bearing portion 60 in the cart 1 of the first embodiment.

横梁350は、軌道中心線を挟んで第1横梁351、第2横梁352(本発明にいう第1部材及び第2部材)に二分割して構成されている。
第1横梁351は、第1側梁30の中央部31から、枕木方向に沿って軌道中心線側へ伸びた円柱状の部材である。第1横梁351は、例えば溶接等によって第1側梁30に固定されている。第1横梁351の突端部には、回転軸部353が形成されている。
第2横梁352は、第2側梁40の中央部41から、枕木方向に沿って軌道中心線側へ伸びた円柱状の部材である。第2側梁352は、例えば溶接等によって第2側梁40に固定されている。第2横梁352の突端部には、回転軸部354が形成されている。
第1横梁351と第2横梁352とは、同心に配置されている。
The cross beam 350 is divided into a first cross beam 351 and a second cross beam 352 (a first member and a second member according to the present invention) across the track center line.
The first horizontal beam 351 is a columnar member extending from the central portion 31 of the first side beam 30 toward the track center line along the sleeper direction. The first horizontal beam 351 is fixed to the first side beam 30 by welding or the like, for example. A rotating shaft portion 353 is formed at the protruding end portion of the first horizontal beam 351.
The second horizontal beam 352 is a columnar member that extends from the central portion 41 of the second side beam 40 toward the track center line along the sleeper direction. The second side beam 352 is fixed to the second side beam 40 by welding or the like, for example. A rotating shaft portion 354 is formed at the protruding end of the second horizontal beam 352.
The first transverse beam 351 and the second transverse beam 352 are arranged concentrically.

連結部360は、第1横梁351と第2横梁352を連結するもの(本発明にいう中間部材)である。連結部360は、例えばほぼ直方体状のボックスとして形成され、第1軸受部361、第2軸受部362を備えている。
第1軸受部361は、第1横梁351の回転軸部353を枕木方向に沿った回転軸回りに回転可能に支持するものである。
第2軸受部362は、第2横梁352の回転軸部354を枕木方向に沿った回転軸回りに回転可能に支持するものである。
回転軸部353の突端部端面と回転軸部354の突端部端面とは、連結部360の内部において、間隔を隔てて対向して配置されている。
連結部360には、図示しない牽引装置等が設けられる。
以上説明した第3実施形態においても、上述した第2実施形態の効果と同様の効果を得ることができる。
The connecting portion 360 connects the first cross beam 351 and the second cross beam 352 (an intermediate member in the present invention). The connecting portion 360 is formed as a substantially rectangular parallelepiped box, for example, and includes a first bearing portion 361 and a second bearing portion 362.
The first bearing portion 361 supports the rotation shaft portion 353 of the first transverse beam 351 so as to be rotatable around the rotation axis along the sleeper direction.
The second bearing portion 362 supports the rotation shaft portion 354 of the second transverse beam 352 so as to be rotatable about the rotation axis along the sleeper direction.
The protruding end portion end surface of the rotating shaft portion 353 and the protruding end portion end surface of the rotating shaft portion 354 are disposed to face each other with a gap inside the connecting portion 360.
The connecting portion 360 is provided with a traction device (not shown).
In the third embodiment described above, the same effect as that of the second embodiment described above can be obtained.

<第4実施形態>
次に、本発明を適用した鉄道車両用台車の第4実施形態について説明する。
第4実施形態の台車4は、第1実施形態の台車1における横梁50及び軸受部60に代えて、以下説明する横梁450及び軸受部460を備えている。
横梁450は、第1梁状部451、第2梁状部452、連結部453、回転軸部454等を備えて構成されている。
<Fourth embodiment>
Next, a description will be given of a fourth embodiment of a railway vehicle carriage to which the present invention is applied.
The cart 4 of the fourth embodiment includes a lateral beam 450 and a bearing portion 460 described below instead of the lateral beam 50 and the bearing portion 60 in the cart 1 of the first embodiment.
The horizontal beam 450 includes a first beam-like portion 451, a second beam-like portion 452, a connecting portion 453, a rotation shaft portion 454, and the like.

第1梁状部451及び第2梁状部452は、横梁450の主要部を構成する部分である。第1梁状部451及び第2梁状部452は、枕木方向に伸びた円柱状の部材であって、車両の進行方向に並べて配置されている。
連結部453は、第1梁状部451及び第2梁状部452の両端部に設けられた例えばボックス状の構造体である。第1梁状部451及び第2梁状部452の両端部は、連結部453の側面部に、例えば溶接等によって結合されている。
回転軸部454は、連結部453の各側枠30,40と隣接する側の面部から枕木方向に沿って車幅方向外側へ突出して形成された円柱状の部材である。
The first beam-like portion 451 and the second beam-like portion 452 are portions constituting the main part of the horizontal beam 450. The first beam-like portion 451 and the second beam-like portion 452 are columnar members extending in the sleeper direction, and are arranged side by side in the traveling direction of the vehicle.
The connecting portion 453 is, for example, a box-like structure provided at both ends of the first beam-like portion 451 and the second beam-like portion 452. Both ends of the first beam-like portion 451 and the second beam-like portion 452 are coupled to the side surface portion of the connecting portion 453 by welding or the like, for example.
The rotating shaft portion 454 is a columnar member that is formed to protrude outward in the vehicle width direction along the sleeper direction from the surface portion adjacent to the side frames 30 and 40 of the connecting portion 453.

軸受部460は、第1側枠30及び第2側枠40の中央部31,41にそれぞれ設けられたラジアル転がり軸受である。軸受部460は、横梁450の両端部における回転軸部454を、枕木方向に沿った回転軸回りに回転可能に支持するものである。
軸受部460は、各側枠に固定された外輪、及び、外輪に対して枕木方向に沿った回転軸回りに回転可能に支持されるとともに、横梁450の回転軸部454が挿入される内輪を備えている。
また、横梁450の回転軸部454と軸受部460との間には、公知の抜け止め手段が設けられている。
以上説明した第4実施形態においても、上述した各実施形態の効果と実質的に同様の効果を得ることができる。
The bearing portion 460 is a radial rolling bearing provided in each of the central portions 31 and 41 of the first side frame 30 and the second side frame 40. The bearing portion 460 supports the rotation shaft portion 454 at both ends of the cross beam 450 so as to be rotatable around the rotation axis along the sleeper direction.
The bearing portion 460 includes an outer ring fixed to each side frame and an inner ring into which the rotation shaft portion 454 of the cross beam 450 is inserted while being supported rotatably around the rotation axis along the sleeper direction with respect to the outer ring. I have.
Further, a known retaining means is provided between the rotating shaft portion 454 of the cross beam 450 and the bearing portion 460.
Also in the fourth embodiment described above, it is possible to obtain substantially the same effects as the effects of the above-described embodiments.

(他の実施形態)
なお、本発明は上記した実施形態のみに限定されるものではなく、種々の応用や変形が考えられる。例えば、台車の構成や各部材の形状、構造、材質、製法等は適宜変更することができる。
また、軸箱支持装置、ブレーキ装置、モータ及び駆動装置、牽引装置、枕バネ等の各種装置の形式等も特に限定されない。
さらに、軸受部の回転速度に応じて減衰力を発生するダンパや、ヨーダンパ等の各種ダンパ類を追加してもよい。
(Other embodiments)
In addition, this invention is not limited only to above-described embodiment, Various application and deformation | transformation can be considered. For example, the configuration of the carriage and the shape, structure, material, manufacturing method, and the like of each member can be changed as appropriate.
Further, the types of various devices such as the axle box support device, the brake device, the motor and the drive device, the traction device, and the pillow spring are not particularly limited.
Furthermore, you may add various dampers, such as a damper which generate | occur | produces damping force according to the rotational speed of a bearing part, and a yaw damper.

1,2,3,4 鉄道車両用台車
10 輪軸 11 車輪
12 車軸 20 軸箱
S 軸バネ 30 第1側枠
31 中央部 32 両端部
33 バネ座 40 第2側枠
41 中央部 42 両端部
43 バネ座 50 横梁
51 第1梁状部 52 第2梁状部
53 連結部 54 回転軸部
60 軸受部 70 枕バネ
250 横梁 251,252 回転軸部
261,262 軸受部
350 横梁 351 第1横梁
352 第2横梁 353,354 回転軸部
360 連結部
361 第1軸受部 362 第2軸受部
450 横梁
451 第1梁状部 452 第2梁状部
453 連結部 454 回転軸部
460 軸受部
1, 2, 3, 4 Railway vehicle bogie 10 Wheel shaft 11 Wheel 12 Axle 20 Shaft box S Shaft spring 30 First side frame 31 Center portion 32 Both ends 33 Spring seat 40 Second side frame 41 Center portion 42 Both ends 43 Spring Seat 50 Lateral beam 51 First beam-like part 52 Second beam-like part 53 Connecting part 54 Rotating shaft part 60 Bearing part 70 Pillow spring 250 Lateral beam 251, 252 Rotating shaft part 261, 262 Bearing part 350 Lateral beam 351 First transverse beam 352 Second Horizontal beam 353, 354 Rotating shaft portion 360 Connecting portion 361 First bearing portion 362 Second bearing portion 450 Lateral beam 451 First beam portion 452 Second beam portion 453 Connecting portion 454 Rotating shaft portion 460 Bearing portion

Claims (5)

実質的に車両進行方向に沿って伸びるとともに枕木方向に離間して配置された一対の側枠と、
前記側枠に設けられ輪軸の端部を保持する軸箱を軸バネを介して支持する軸箱支持装置と、
実質的に枕木方向に沿って伸び前記一対の側枠の中間部間を連結する横梁と
を備える鉄道車両用台車であって、
左右の前記側枠を実質的に枕木方向に沿った回転軸回りに相対回転可能とする軸受部が設けられること
を特徴とする鉄道車両用台車。
A pair of side frames that extend substantially along the vehicle traveling direction and are spaced apart from each other in the sleeper direction;
An axle box support device that supports an axle box that is provided on the side frame and holds an end of the wheel shaft via an axle spring;
A railcar for a railway vehicle comprising: a transverse beam extending substantially along a sleeper direction and connecting between intermediate portions of the pair of side frames,
A railcar bogie characterized in that a bearing portion is provided that allows the left and right side frames to relatively rotate about a rotation axis substantially along a sleeper direction.
前記横梁は前記一対の側枠のうち一方の側枠に結合され、
前記軸受部は、前記一対の側枠のうち他方の側枠に設けられ、前記横梁の突端部が支持されること
を特徴とする請求項1に記載の鉄道車両用台車。
The horizontal beam is coupled to one side frame of the pair of side frames,
The railway vehicle carriage according to claim 1, wherein the bearing portion is provided on the other side frame of the pair of side frames, and a protruding end portion of the transverse beam is supported.
前記軸受部は前記一対の側枠にそれぞれ設けられ、前記横梁の両端部がそれぞれ支持されること
を特徴とする請求項1に記載の鉄道車両用台車。
The bogie for a railway vehicle according to claim 1, wherein the bearing portions are respectively provided on the pair of side frames, and both end portions of the cross beam are supported.
前記横梁の中間部分は、実質的に枕木方向に沿って伸びるとともに車両進行方向に配列された複数の梁状部材によって構成されること
を特徴とする請求項1又は請求項2に記載の鉄道車両用台車。
3. The railway vehicle according to claim 1, wherein an intermediate portion of the transverse beam is configured by a plurality of beam-like members that extend substantially along a sleeper direction and are arranged in a vehicle traveling direction. Trolley.
前記横梁は、前記一対の側枠にそれぞれ固定され実質的に枕木方向に沿って軌道中心線側に延びた第1部材及び第2部材と、前記第1部材及び前記第2部材の連結部に設けられた中間部材とを有し、
前記軸受部は前記中間部材に設けられ前記第1部材及び前記第2部材をそれぞれ支持する第1軸受及び第2軸受を有すること
を特徴とする請求項1に記載の鉄道車両用台車。
The horizontal beams are fixed to the pair of side frames, respectively, and extend substantially toward the track center line along the sleeper direction, and the connecting portions of the first member and the second member. An intermediate member provided,
2. The railway vehicle carriage according to claim 1, wherein the bearing portion includes a first bearing and a second bearing that are provided on the intermediate member and support the first member and the second member, respectively.
JP2010010195A 2010-01-20 2010-01-20 Railcar bogie Active JP5524634B2 (en)

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CN104129400A (en) * 2014-07-30 2014-11-05 南车株洲电力机车有限公司 Rail car and rotatable frame thereof
JP2015009571A (en) * 2013-06-26 2015-01-19 公益財団法人鉄道総合技術研究所 Carriage for railway vehicle
JP2015009572A (en) * 2013-06-26 2015-01-19 公益財団法人鉄道総合技術研究所 Carriage for railway vehicle
JP2016137858A (en) * 2015-01-28 2016-08-04 日本車輌製造株式会社 Railway vehicle truck
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CN106573629A (en) * 2014-07-31 2017-04-19 新日铁住金株式会社 Bogie for rolling stock and rolling stock comprising said bogie
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JPWO2017029721A1 (en) * 2015-08-19 2018-05-10 株式会社日立製作所 Railcar bogie
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CN111497886A (en) * 2020-05-08 2020-08-07 中车齐齐哈尔车辆有限公司 Vehicle and framework thereof
WO2022032808A1 (en) * 2020-08-14 2022-02-17 中车唐山机车车辆有限公司 Bogie

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JP2015009571A (en) * 2013-06-26 2015-01-19 公益財団法人鉄道総合技術研究所 Carriage for railway vehicle
JP2015009572A (en) * 2013-06-26 2015-01-19 公益財団法人鉄道総合技術研究所 Carriage for railway vehicle
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CN104129400A (en) * 2014-07-30 2014-11-05 南车株洲电力机车有限公司 Rail car and rotatable frame thereof
CN106573629B (en) * 2014-07-31 2018-07-24 新日铁住金株式会社 Railcar bogie and rail truck with the bogie
CN106573629A (en) * 2014-07-31 2017-04-19 新日铁住金株式会社 Bogie for rolling stock and rolling stock comprising said bogie
US10035524B2 (en) 2014-12-17 2018-07-31 Kawasaki Jukogyo Kabushiki Kaisha Bogie for railcar
KR20170087932A (en) 2014-12-17 2017-07-31 카와사키 주코교 카부시키 카이샤 Bogie for railway vehicle
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JP2016203865A (en) * 2015-04-24 2016-12-08 日本車輌製造株式会社 Railway vehicle truck
JPWO2017029721A1 (en) * 2015-08-19 2018-05-10 株式会社日立製作所 Railcar bogie
CN108045397A (en) * 2017-12-19 2018-05-18 中车株洲电力机车有限公司 A kind of built-in bogie framework of axle box
CN111497886A (en) * 2020-05-08 2020-08-07 中车齐齐哈尔车辆有限公司 Vehicle and framework thereof
WO2022032808A1 (en) * 2020-08-14 2022-02-17 中车唐山机车车辆有限公司 Bogie

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