JP2002145060A - Bolster-floor joining structure in underframe of railway rolling stock - Google Patents
Bolster-floor joining structure in underframe of railway rolling stockInfo
- Publication number
- JP2002145060A JP2002145060A JP2000338799A JP2000338799A JP2002145060A JP 2002145060 A JP2002145060 A JP 2002145060A JP 2000338799 A JP2000338799 A JP 2000338799A JP 2000338799 A JP2000338799 A JP 2000338799A JP 2002145060 A JP2002145060 A JP 2002145060A
- Authority
- JP
- Japan
- Prior art keywords
- bolster
- floor
- plate
- underframe
- pillow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T30/00—Transportation of goods or passengers via railways, e.g. energy recovery or reducing air resistance
Landscapes
- Body Structure For Vehicles (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、鉄道車両のボルス
タレス台車など各種の台車に支持される台枠における枕
梁・床結合構造に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bolster / floor joint structure for an underframe supported by various bogies such as a bolsterless bogie of a railway car.
【0002】[0002]
【従来の技術】図10、図11にボルスタレス台車と台
枠の関係を示している。ボルスタレス台車aは概ね、左
右の側梁b、bの中央部間を連結している本体部cの左
右方向中央部にある牽引部dと、本体部cの左右両端
部、左右の側梁b、bの前後方向中央部にある空気ばね
e、eとによって車体の台枠fを支持する。台枠fはボ
ルスタレス台車aの支持を受けるために、側梁g、g間
に左右に渡された単体よりなる枕梁hを有している。枕
梁hは下面に図9、図10に示す牽引部dの心皿d1が
ボルトd2によって締結されるとともに、心皿中央に突
出している心皿中心ピンd3が図9、図10に示す孔d
4に嵌め合わされて、ボルスタレス台車a側からの前後
力を受けるとともに、枕梁hの下面の両端に前記空気ば
ねe、eが連結されて主として上下方向に弾性的に支持
され、牽引部dによって前後力が伝達され車体が走行す
るときの上下方向力および前後力が伝達される。2. Description of the Related Art FIGS. 10 and 11 show the relationship between a bolsterless carriage and an underframe. The bolsterless carriage a is generally composed of a traction portion d at the center in the left-right direction of the main body c connecting the central portions of the left and right side beams b, b, and both left and right ends of the main body c, and the left and right side beams b. , B support the underframe f of the vehicle body by the air springs e, e at the center in the front-rear direction. The underframe f has side beams g, and a single-piece bolster h passed between the side beams g to receive the support of the bolsterless carriage a. On the lower surface of the bolster h, the center plate d1 of the traction portion d shown in FIGS. 9 and 10 is fastened by bolts d2, and the center pin d3 projecting at the center of the center of the hole has a hole shown in FIGS. d
4 and receive the longitudinal force from the bolsterless carriage a side, and the air springs e and e are connected to both ends of the lower surface of the bolster h and are elastically supported mainly in the vertical direction. The longitudinal force is transmitted, and the vertical force and the longitudinal force when the vehicle body travels are transmitted.
【0003】このようなボルスタレス台車aはボルスタ
台車に比し構造が簡単で支持性能も向上し、広く使用さ
れるようになっている。Such a bolsterless carriage a has a simple structure and improved support performance as compared with the bolster carriage, and has been widely used.
【0004】[0004]
【発明が解決しようとする課題】しかし、最近、車両の
走行において、車体の下まわり部分から異音が発生し問
題となっている。上記のようなボルスタレス台車aで支
持した車体において特に著しい。この異音は車両が急に
加速または減速するとき、車両が直線路から曲線路に移
るとき、逆に曲線路から直線路に移るときに多く発生し
ている。この異音の発生につき本発明者等が上記のよう
なボルスタレス台車aにおいて種々に実験や検討を行っ
たところ、台枠fの枕梁hとこれが支えている床jとの
部分であることが判明した。異音の発生の原因について
さらに検討を重ねた結果、枕梁hの、例えば2496m
m×740mmといった比較的広い上面とこれに対向す
る床jの下面とが摺動したりぶつかり合うことの繰り返
しによって異音が発生することが判明した。However, recently, when the vehicle is running, a noise is generated from a lower part of the vehicle body, which is a problem. This is particularly remarkable in a vehicle body supported by the bolsterless carriage a as described above. This abnormal noise occurs frequently when the vehicle suddenly accelerates or decelerates, when the vehicle moves from a straight road to a curved road, and when the vehicle moves from a curved road to a straight road. The present inventors conducted various experiments and studies on the occurrence of the abnormal noise in the bolsterless carriage a as described above. As a result, the bolsterless carriage a was found to be a part of the pillow h of the underframe f and the floor j supported by the same. found. As a result of further study on the cause of the generation of the abnormal noise, for example, 2496 m
It has been found that abnormal noise is generated by repeated sliding and collision between a relatively large upper surface of mx 740 mm and the lower surface of the floor j opposed thereto.
【0005】そこで、この部分での枕梁hと床jとの結
合構造について調べたところ、枕梁hは広い面を持った
ものであるが形材で形成するなどした単体として台枠f
に組み付けられる関係上、車体全長に亘る通しの形材に
よる床jとの間に施す図9、図10に示す溶接接合部k
は枕梁hの両側辺と両端側辺のみとなっており、枕梁h
の上面はほぼ四周位置まで床jの下面との間が接合され
ない構造になっていた。これは、例えば、軽金属製の中
空大型形材が台枠や床に用いられ出したことによる特殊
事情である。[0005] The joint structure between the bolster h and the floor j at this portion was examined. As a result, although the bolster h has a wide surface, the underframe f
9 and 10 shown in FIGS. 9 and 10 to be applied to a floor j made of a through-shaped material over the entire length of the vehicle body.
Is only on both sides and both sides of the bolster h.
The upper surface has a structure in which the lower surface of the floor j is not joined to the lower surface of the floor j almost up to four circumferential positions. This is a special circumstance due to, for example, the fact that a large hollow material made of light metal is used for an underframe or a floor.
【0006】そこで、車体の異音が発生する上記のよう
な走行状況における台枠fまわりの強度を再検討すると
ともに、枕梁hの上面をなす枕梁上板h1と床jの下面
をなす床下板j1との挙動に注目し観察した。この結
果、強度に問題はないものの、上記のような車体の走行
状況下では、前記枕梁上板h1や床下板j1に変形剛性
の不足による変形が生じていることが分かった。In view of this, the strength of the underframe f around the undercarriage f in the above-described running situation in which the noise of the vehicle body occurs is reviewed, and the pillow upper plate h1 forming the upper surface of the pillow h and the lower surface of the floor j are formed. The behavior with the underfloor plate j1 was observed and observed. As a result, although there was no problem in strength, it was found that under the above-described running condition of the vehicle body, deformation occurred due to insufficient deformation rigidity in the upper bolster h1 and the lower floor j1.
【0007】つまり、枕梁上板h1や床下板j1はとも
に板状部分であるため、車体に作用する荷重条件によっ
ては、捩れ変形が生じて面外方向に変形することがあ
る。例えば、走行する車体においてブレーキを掛けた際
に、台車aから枕梁hに車体前後方向の力が作用する。
そのとき枕梁hは全断面に捩り荷重を受ける。このため
枕梁上板h1は面外変形し僅かなエアギャップを持って
接している床下板j1と摺動するかそれに急にぶつか
り、異音が発生する。別の例として、車体が直線路から
曲線路へ進入する際、線路軌道面は左右方向に水平な直
線路から、左右方向に傾斜した曲線路へ遷移する軌道を
通過しなければならない。このような箇所の軌道面は捩
れ面になっているので、ここを通過する車体は捩れる。
このとき、枕梁hも床jもどちらも捩り荷重を受けて捩
れる。すると、枕梁上板h1も床下板j1も面外変形す
るので、互いが摺動し、あるいはぶつかり合って異音を
発する。That is, since both the upper beam h1 and the lower floor j1 are plate-like portions, depending on the load conditions acting on the vehicle body, they may be twisted and deformed out of the plane. For example, when a brake is applied to a running vehicle body, a force in the vehicle body front-rear direction acts on the pillow h from the carriage a.
At that time, the bolster h is subjected to a torsional load in all cross sections. For this reason, the upper bolster plate h1 deforms out of plane and slides or suddenly collides with the lower floor plate j1, which is in contact with a slight air gap, and abnormal noise is generated. As another example, when the vehicle enters a curved road from a straight road, the track surface of the track must pass through a track that transitions from a straight horizontal road in the left-right direction to a curved road inclined in the left-right direction. Since the raceway surface at such a location is a twisted surface, the vehicle body passing therethrough is twisted.
At this time, both the bolster h and the floor j are twisted under the torsional load. Then, since both the upper bolster plate h1 and the lower floor plate j1 are out-of-plane deformation, they slide or collide with each other, generating abnormal noise.
【0008】これに対処するため本発明者等は、通しの
形材による側梁gを含め一体に結合した床jの段階にお
いて、枕梁hの上面の両側の端部域を残す中央部域に対
応する部分を先に切り抜いて四角形の窓mを形成し、こ
の窓m内に支持枠qを嵌め合わせて窓mの表裏の口縁と
の間に溶接接合部kを設けて結合しておく。支持枠qは
ボックス材n1を配して連結した矩形のフレームn内に
一方向に平行な中骨oを配してフレームnとの突き当て
境界部に溶接接合部kを設けて結合したものである。こ
のように構成した床jに枕梁hを当てがい結合するの
に、枕梁hの両側辺と両端側辺と床との間に加え、枕梁
hの上面との間に溶接接合部kを施し、前記フレームn
および中骨oと枕梁hの上面との突き当て境界部に溶接
接合部kを施して結合し、最後に前記窓mを蓋する補助
床板pを支持枠qの上に載せて周囲を床jの窓mの口縁
との間に溶接接合部kを施して結合することを試みた。
これによれば、枕梁hの上面と床jの下面とが広い範囲
で接合されないことに起因した互いが摺動したりぶつか
り合うことが防止され、異音が発生しないようにするこ
とができ、本発明者等の考えた異音の原因に間違いない
ことが確認された。In order to cope with this, the present inventors have found that in the stage of the floor j which is integrally connected including the side beams g of the through-shaped members, the central region where both end regions on both sides of the upper surface of the bolster h are left. Is cut out first to form a rectangular window m, a support frame q is fitted into the window m, and a welded joint k is provided between the front and back edges of the window m to be joined. deep. The support frame q is a rectangular frame n connected with a box material n1 and connected with a central bone o parallel to one direction and provided with a welded joint k at the abutting boundary with the frame n and joined. It is. In order to apply and connect the bolster h to the floor j configured as described above, a welded joint k is provided between both sides and both side edges of the bolster h and the upper surface of the bolster h. And the frame n
A welded joint k is applied to the abutting boundary between the inner bone o and the upper surface of the bolster h to join the joints. Finally, an auxiliary floor plate p for covering the window m is placed on the support frame q and the periphery is floored. An attempt was made to apply and join a welded joint k between the edge of the window m of j.
According to this, it is possible to prevent the upper surface of the bolster h and the lower surface of the floor j from sliding or colliding with each other due to the fact that the upper surface of the bolster h is not joined in a wide range, so that no abnormal noise is generated. It was confirmed that the cause of the abnormal noise considered by the present inventors was no doubt.
【0009】しかし、このような改良構造では、折角の
通し材よりなる床jが窓mの部分で通し材が分断されて
しまい剛性が低下するし、部材数、作業数が徒に多くコ
ストが大幅に上昇するので、実用に耐えない。[0009] However, in such an improved structure, the floor j made of a bent through member is cut off at the portion of the window m to reduce the rigidity, and the number of members and the number of operations are unnecessarily large, and the cost is increased. Because it rises significantly, it is not practical.
【0010】本発明の目的は、簡単な改良構造によって
異音の発生を防止できる鉄道車両の台枠における枕梁・
床結合構造を提供することにある。SUMMARY OF THE INVENTION It is an object of the present invention to provide a railway vehicle underframe which can prevent generation of abnormal noise with a simple improved structure.
It is to provide a floor connection structure.
【0011】[0011]
【課題を解決するための手段】上記のような目的を達成
するために、本発明の鉄道車両の台枠における枕梁・床
結合構造は、各種台車に支持される単体よりなる枕梁の
上面をなす枕梁上板と、この枕梁上板の上に載置した形
材よりなる床の下面をなす床下板とを、枕梁上板の両側
辺および両端側辺と床下板の下面との間に施した溶接接
合部により結合した鉄道車両の台枠における枕梁・床結
合構造において、枕梁上板の上面における両側辺部分を
除く幅方向中央部分と床との間に隙間を形成したことを
特徴とするものである。In order to achieve the above-mentioned object, the present invention provides a railroad vehicle underframe joint structure for a railroad vehicle underframe, which is provided on a top surface of a single body bolster supported by various trolleys. The upper and lower pillows, and the lower floor of the lower surface of the floor made of the shaped material placed on the upper pillow, A gap is formed between the floor and the center part in the width direction excluding both side parts on the upper surface of the upper part of the pillow in the underbody structure of the underbody of the railroad car joined by the welded joint between It is characterized by having done.
【0012】このような構成では、単体よりなる枕梁上
板の上面と床下板の下面との、枕梁が床と結合される両
側辺部分を除く幅方向中央部分に設けられた隙間は、枕
梁の全断面に捩れが生じて枕梁上板および床上板が板状
であることにより面外変形することがあっても、この面
外変形によって枕梁上板と床下板とが摺動し合い、ぶつ
かり合うのを防止するので、異音が発生しなくなる。[0012] In such a configuration, the gap provided between the upper surface of the upper single-piece bolster plate and the lower surface of the lower-floor plate at the center in the width direction except for both side portions where the bolster is connected to the floor, Even if the entire cross-section of the bolster is twisted and the upper and lower bolsters are out of plane due to the plate shape, the upper and lower bolsters slide due to the out-of-plane deformation. It prevents collisions and collisions, so that no noise is generated.
【0013】隙間は、枕梁上板の上面に形成した凹部に
よって形成することができるし、枕梁と床との間に挟ん
だスペーサによって形成することもできる。いずれにし
ても台枠の構造や組み立てが特に複雑になることはな
く、コスト上昇の原因にはならない。特に、凹部の場合
は枕梁の形材を形成する押出し形成時における断面形状
の選択によって対応できる利点がある。凹部をどのよう
に形成する場合でも枕梁が強度上、剛性上必要とされる
高さ寸法以上に位置するように形成されていると、凹部
があることにより強度上や剛性上で問題になることはな
い。また、スペーサによると単純な板材を挟み込めばよ
いし、枕梁と床との溶接接合によって同時に結合できる
利点がある。The gap can be formed by a concave portion formed on the upper surface of the upper body of the bolster, or can be formed by a spacer sandwiched between the bolster and the floor. In any case, the structure and assembly of the underframe do not become particularly complicated, and do not cause an increase in cost. Particularly, in the case of a concave portion, there is an advantage that it can be dealt with by selecting a cross-sectional shape at the time of extrusion forming for forming a shape of the bolster. Regardless of how the recess is formed, if the bolster is formed so as to be located at a height or more required for strength and rigidity, the presence of the recess causes problems in strength and rigidity. Never. Further, according to the spacer, there is an advantage that a simple plate material may be sandwiched, and the joint can be simultaneously formed by welding and joining the bolster and the floor.
【0014】上記のような構成に加え、さらに、枕梁の
上板の中心部に、枕梁の下面をなす枕梁下板の中心部に
ボルスタレス台車における牽引部の心皿中心ピンと嵌り
合うように設けられた孔と対向する、今1つの孔を設
け、または、枕梁上板における中心部に、枕梁の下面を
なす枕梁下板の中心部にボルスタレス台車における牽引
部の心皿中心ピンと嵌り合うように設けられた孔と対向
する、今1つの孔を、枕梁の両端部における空気ばね給
気座取付け孔と対向する、今1つの孔を、それぞれ設
け、枕梁と床との間で前記今1つの孔を上方から塞ぎ前
記隙間を今1つの孔の近傍で埋める金属板を設け、この
金属板はその周辺部と床の下面との間に施した溶接接合
部により床に結合され、その下面と前記今1つの孔の口
縁との間に施した溶接接合部により枕梁に結合されてい
るようにすることができる。In addition to the above structure, the center of the upper plate of the bolster is fitted to the center of the lower plate of the bolster, which forms the lower surface of the bolster, with the center pin of the pulling portion of the bolsterless bogie. One hole is provided opposite to the hole provided in the bolsterless trolley, or in the center of the upper bolster, at the center of the lower bolster plate forming the lower surface of the bolster, at the center of the center of the traction part of the bolsterless bogie. Another hole is provided opposite the hole provided to fit the pin, and another hole is provided respectively opposite the air spring air supply seat mounting holes at both ends of the bolster, and the bolster and the floor are provided. A metal plate is provided between the peripheral portion and the lower surface of the floor, the metal plate closing the one hole from above and filling the gap near the one hole. And a weld made between its lower surface and the rim of said another hole It can be made to be coupled to the bolster by the engaging portion.
【0015】このような構成によれば、さらに、枕梁上
板と床下板との間にできる広い範囲の隙間の、ボルスタ
レス台車の心皿中心ピンと嵌り合う孔と対向する今1つ
の孔の部分か、この今1つの孔の部分および枕梁の両端
部の空気ばね給気座取付け孔部分か、において、枕梁が
台枠の牽引部からの前後力を受ける部分または、この部
分および空気ばねにより支持される部分、に対応する枕
梁上板の中央部が床下板と金属板を介し結合されるの
で、枕梁上板および床下板の捩り変形を抑制し、隙間が
できることによる剛性の低下を補償することができる。
しかも、金属板は枕梁に取付ける前の床材における床下
板の下面との間に溶接接合部を施しておき、床材を枕梁
に載せたときに枕梁下板にある牽引部の心皿中心ピンと
嵌り合う孔を通じて枕梁上板に設けた孔の口縁との間に
溶接接合部を施せばよく、構造や組立てが特に複雑にな
るようなことがなくコスト上昇の原因にはならない。[0015] According to the above configuration, furthermore, a portion of the one hole opposite to the hole that fits with the center pin of the core plate of the bolsterless trolley, in a wide range of gap formed between the upper bolster plate and the lower floor plate. The part of the hole which is to be subjected to the fore-and-aft force from the traction part of the underframe, or the part and the air spring The central part of the upper bolster corresponding to the portion supported by the fin is connected to the lower floor and the metal plate via the metal plate, so that the torsional deformation of the upper bolster and the lower floor is suppressed, and the rigidity is reduced due to a gap. Can be compensated for.
In addition, the metal plate is provided with a welded joint between the lower surface of the underfloor plate of the floor material before being attached to the bolster and the center of the traction portion on the pillow lower plate when the floor material is placed on the bolster. It is sufficient to provide a welded joint between the hole that fits the center pin of the dish and the edge of the hole provided in the upper part of the bolster, so that the structure and assembly are not particularly complicated and do not cause an increase in cost .
【0016】枕梁、床が前記異音を発しやすい軽金属製
の形材、中でも中空形材よりなる場合に本発明は特に有
効である。The present invention is particularly effective when the pillows and the floor are made of a light metal shape, which is apt to emit the above-mentioned noise, in particular, a hollow shape.
【0017】本発明のそれ以上の目的および特徴は、以
下の詳細な説明および図面の記載によって明らかにな
る。本発明の各特徴は、それ単独で、あるいは可能な限
り種々な組み合わせで複合して用いることができる。Further objects and features of the present invention will become apparent from the following detailed description and drawings. Each feature of the present invention can be used alone or in combination as variously as possible.
【0018】[0018]
【発明の実施の形態】以下、本発明の実施の形態に係る
鉄道車両の台枠における枕梁・床結合構造につき、図1
〜図5を参照しながら幾つかの例とともに説明し、本発
明の理解に供する。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a joint structure of a bolster and a floor in an underframe of a railway vehicle according to an embodiment of the present invention will be described with reference to FIG.
5 together with some examples for an understanding of the invention.
【0019】本実施の形態は図1〜図5に示すようなア
ルミニウムなどの軽金属製の中空の大型形材1を用いた
枕梁2を持ち、図2に示すような牽引部6を持ったボル
スタレス台車7によって支持され前後力が伝達される鉄
道車両の台枠3において、この台枠3が支持する同じく
アルミニウムなどの軽金属製の中空の大型形材4を用い
た床5と、前記枕梁2とを結合する場合の一例である。
しかし、本発明はこれに限られることはなく、各種の台
車で支持される台枠において、各種の形材などを用いて
単体に形成される枕梁2と床5を構成するのに、枕梁2
における枕梁上板2aの両側辺2a1と両端側辺2a2
とに床5に溶接接合部が施され、他の部分には溶接接合
部が施されない構造を持った枕梁・床結合構造一般に適
用して有効である。This embodiment has a bolster 2 using a hollow large-sized member 1 made of a light metal such as aluminum as shown in FIGS. 1 to 5 and a traction portion 6 as shown in FIG. The underframe 3 of a railway vehicle supported by the bolsterless carriage 7 and transmitted in the longitudinal direction, the floor 5 using a large hollow member 4 of light metal such as aluminum supported by the underframe 3 and the bolster This is an example of a case where the device No. 2 is combined.
However, the present invention is not limited to this, and the pillow 2 and the floor 5, which are formed as a single body using various shapes and the like on the underframe supported by various trolleys, are not pillowed. Beam 2
Side 2a1 and both sides 2a2 of the upper bolster plate 2a
The present invention is effective when applied to a beam / floor joint structure generally having a structure in which a welded joint is formed on the floor 5 and no welded joint is formed on other portions.
【0020】台枠3は既述したようにボルスタレス台車
や各種の台車の支持を受けるために、側梁11、11間
に左右に渡された比較的大きな枕梁2を有している。枕
梁2は下面に牽引部6の心皿12がボルト13によって
締結されるとともに、心皿12の中央に突出している心
皿中心ピン14が図2に示す枕梁2における枕梁下板2
bに形成された孔15に嵌め合わされて、ボルスタレス
台車7側からの前後力を受けるとともに、枕梁2の下面
の両端に図示しない空気ばねが孔17を利用した連結に
より主として上下方向に弾性的に支持され、牽引部6に
よって前後力が伝達され車体が走行するときの上下方向
力および前後力が伝達される。As described above, the underframe 3 has the relatively large bolster beam 2 which is provided between the side beams 11 and 11 so as to be supported by the bolsterless trolley and various trolleys. On the underside of the bolster 2, the center plate 12 of the traction portion 6 is fastened by bolts 13 and the center pin 14 projecting from the center of the center plate 12 is connected to the lower plate 2 of the bolster 2 shown in FIG.
b, receiving longitudinal force from the bolsterless carriage 7 side, and air springs (not shown) at both ends of the lower surface of the bolster 2 mainly elastically in the vertical direction by coupling using the holes 17. , The longitudinal force is transmitted by the traction unit 6, and the vertical force and the longitudinal force when the vehicle travels are transmitted.
【0021】しかし、台枠3における枕梁2の枕梁上板
2aと床5の床下板5aとが、枕梁上板2aの両側辺2
a1と両端側辺2a2と床5の床下板5aとの溶接接合
部16でしか結合されない構造では、既述したように車
体の走行中、枕梁上板2aと床下板5aとの間で異音が
発生する。However, the upper bolster plate 2a of the bolster 2 and the lower floor plate 5a of the floor 5 in the underframe 3 are connected to both sides 2 of the upper bolster plate 2a.
In a structure in which a1 and both side edges 2a2 and the underfloor plate 5a of the floor 5 are joined only at the welded joint 16, as described above, the difference between the upper bolster plate 2a and the underfloor plate 5a during traveling of the vehicle body is already described. A sound is generated.
【0022】そこで、本実施の形態では、図1、図2の
例と、図3の例とで示すように、枕梁2の上面をなす枕
梁上板2aと、床5の下面をなす床下板5aとを、枕梁
上板2aの側面と床下板5aの下面との間に溶接接合部
16を施した枕梁・床結合構造において、枕梁上板2a
の上面における両側辺2a1部分を除く幅方向中央部分
2a3と床下板5aとの間に隙間21を形成する。Therefore, in the present embodiment, as shown in the examples of FIGS. 1 and 2 and the example of FIG. 3, a pillow upper plate 2a forming the upper surface of the pillow 2 and a lower surface of the floor 5 are formed. In a pillow / floor joint structure in which a welded joint 16 is provided between the underfloor plate 5a and the side surface of the bolster upper plate 2a and the lower surface of the underfloor plate 5a, the bolster upper plate 2a
A gap 21 is formed between the center part 2a3 in the width direction excluding the two side parts 2a1 on the upper surface of the lower surface and the floor plate 5a.
【0023】このように、枕梁上板2aの上面と床下板
5aの下面との、枕梁2が床5と結合される両側辺2a
1部を除く幅方向中央部分2a3に設けられ枕梁2の長
手方向に通縦した隙間21は、枕梁2の全断面に捩れが
生じて枕梁上板2aおよび床下板5aが板状であること
により面外変形することがあっても、この面外変形によ
って枕梁上板2aと床下板5aとが摺動し合い、ぶつか
り合うのを防止するので、異音が発生しなくなる。従っ
て、隙間21はこのような枕梁上板2aと床下板5aと
の面外変形による摺動やぶつかり合いを防止できればよ
く、双方の面外変形の互いに近づく側の最大値の和より
も大きければよい。これは車体とボルスタレス台車7と
の関係、枕梁、床の関係によって異なり、従って、車種
によって異なる。しかし、本発明者らの経験では、軽金
属製の中空形材を用いた枕梁2および床5の関係におい
て、凡そ5mm程度あれば十分である。しかし、車種や
設計の変更などで条件が異なる場合など、隙間21の大
きさはどのようにも設定することができる。As described above, both sides 2a of the upper surface of the upper bolster plate 2a and the lower surface of the lower floor plate 5a where the bolster 2 is connected to the floor 5 are provided.
The gap 21 provided in the center portion 2a3 in the width direction except for one part and extending in the longitudinal direction of the bolster 2 is twisted in the entire cross section of the bolster 2, so that the upper bolster plate 2a and the lower floor plate 5a have a plate shape. Even if there is an out-of-plane deformation due to the existence, the out-of-plane deformation prevents the upper bolster plate 2a and the under floor plate 5a from sliding and colliding with each other, so that no noise is generated. Therefore, the gap 21 only needs to be able to prevent such sliding and collision due to the out-of-plane deformation of the upper bolster plate 2a and the lower floor plate 5a, and is larger than the sum of the maximum values of both out-of-plane deformations on the approaching side. I just need. This depends on the relationship between the vehicle body and the bolsterless carriage 7, the relationship between the bolsters, and the floor, and therefore differs depending on the vehicle type. However, according to the experience of the present inventors, about 5 mm is sufficient for the relationship between the bolster 2 and the floor 5 using a hollow section made of light metal. However, the size of the gap 21 can be set in any manner, for example, when conditions are different due to changes in the type of vehicle or design.
【0024】隙間21は、上記例に示すように枕梁2に
おける枕梁上板2aの上面に形成した凹部22によって
形成することができる。しかし、図示しない枕梁2と床
5との間に挟んだスペーサによって形成することもでき
る。いずれにしても台枠3の構造や組み立てが特に複雑
になることはなく、コスト上昇の原因にはならない。特
に、凹部22の場合は枕梁2の形材1を形成する押出し
形成時の断面形状の選択によって対応できる利点があ
る。凹部22をどのように形成する場合でも枕梁2が強
度上、剛性上必要とされる高さ寸法、例えば標準仕様で
140mm以上、高速車仕様で150mmの高さ位置と
なる図1、図3に示すH以上に位置するように形成す
る。これによると、凹部22があることにより強度上や
剛性上で問題になることはない。また、スペーサによる
と単純な板材を挟み込めばよいし、枕梁と床との溶接接
合によって同時に結合される利点がある。もっとも、凹
部22は異音防止の原理からは必ずしも枕梁2の側に設
けなくてもよく、床5の下面に設けられてもよい。The gap 21 can be formed by a concave portion 22 formed on the upper surface of the bolster upper plate 2a of the bolster 2, as shown in the above example. However, it can also be formed by a spacer sandwiched between the bolster 2 and the floor 5 (not shown). In any case, the structure and assembly of the underframe 3 are not particularly complicated, and do not cause an increase in cost. In particular, in the case of the concave portion 22, there is an advantage that it can be dealt with by selecting a cross-sectional shape at the time of extrusion forming the shape member 1 of the bolster 2. Regardless of how the concave portion 22 is formed, the height of the bolster 2 is required in terms of strength and rigidity, for example, 140 mm or more in a standard specification and 150 mm in a high-speed vehicle specification. Is formed so as to be located above H shown in FIG. According to this, there is no problem in strength and rigidity due to the presence of the concave portion 22. In addition, according to the spacer, a simple plate material may be sandwiched, and there is an advantage that the spacer is welded to the floor at the same time by welding. However, the concave portion 22 may not necessarily be provided on the side of the bolster 2 from the principle of preventing abnormal noise, and may be provided on the lower surface of the floor 5.
【0025】図1、図2の例では、さらに、枕梁2の枕
梁上板2aの中心部に、枕梁2の下面をなす枕梁下板2
bの中心部にボルスタレス台車7における牽引部6の心
皿中心ピン14と嵌り合うように設けられた孔15と対
向する、今1つの孔23を設け、枕梁2の中心部と床5
との間で前記今1つの孔23を上方から塞ぎ前記隙間2
1を部分的に埋める金属板24を設けている。この金属
板24はその周辺部と床5の下面との間に施した溶接接
合部25により床5に結合され、その下面と前記今1つ
の孔23の内周面との間に施した溶接接合部26により
枕梁2に結合した構造としている。In the example shown in FIGS. 1 and 2, the lower part of the bolster 2 which forms the lower surface of the bolster 2 is further provided at the center of the upper part 2a of the bolster 2.
b, a hole 23 is provided in the bolsterless bogie 7 opposite to the hole 15 provided so as to be fitted with the center pin 14 of the center plate 14 of the traction part 6 of the bolsterless carriage 7.
Between the second hole 23 and the gap 2
1 is provided with a metal plate 24 that partially fills 1. The metal plate 24 is joined to the floor 5 by a welded joint 25 provided between the periphery thereof and the lower surface of the floor 5, and the metal plate 24 is welded between the lower surface and the inner peripheral surface of the hole 23. It is structured to be joined to the bolster 2 by the joint 26.
【0026】これにより、枕梁上板2aと床下板5aと
の間にできる広い範囲の隙間21において、枕梁2が台
枠3の牽引部6からの前後力を受ける部分に対応する枕
梁上板2aの中心部が床下板5aと金属板24を介し結
合されるので、枕梁上板2aおよび床下板5aの捩り変
形を抑制し、隙間21ができることによる剛性の低下を
補償することができる。しかも、金属板24は枕梁2に
取付ける前の形材4における床下板5aの下面と周辺部
との間に溶接接合部25を施しておき、床5の形材4を
枕梁2に載せたときに枕梁下板2bにある牽引部6の心
皿中心ピン14と嵌り合う孔15を通じて枕梁上板2a
に設けた孔23の口縁との間に溶接接合部26を施せば
よく、構造や組立てが特に複雑になるようなことがなく
コスト上昇の原因にはならない。金属板24は溶接構造
上枕梁2、床5と同じ材料、従って本実施の形態ではア
ルミニウム製がよく、例えば凹部22の幅が560mm
であるのに対し金属板24の凹部22の幅方向寸法が1
80mm程度とされ、枕梁2の長手方向も同じ寸法にし
ても良いし、図示するように短くしてもよい。また、場
合によっては長くしてもよい。Thus, in a wide gap 21 formed between the upper bolster plate 2a and the lower floor plate 5a, the bolster 2 corresponding to the portion where the bolster 2 receives the longitudinal force from the traction portion 6 of the underframe 3 Since the center of the upper plate 2a is connected to the lower floor plate 5a via the metal plate 24, it is possible to suppress the torsional deformation of the upper bolster plate 2a and the lower floor plate 5a, and to compensate for the reduction in rigidity due to the gap 21 being formed. it can. Moreover, the metal plate 24 is provided with a welded joint 25 between the lower surface of the underfloor plate 5a and the peripheral portion of the profile 4 before being attached to the beam 2, and the profile 4 of the floor 5 is placed on the beam 2. The upper bolster plate 2a passes through the hole 15 which fits with the center pin 14 of the center plate 14 of the traction portion 6 in the lower bolster plate 2b when
The welded joint 26 may be provided between the hole 23 and the edge of the hole 23, and the structure and assembly are not particularly complicated, and do not cause an increase in cost. The metal plate 24 is preferably made of the same material as that of the bolster 2 and the floor 5 in terms of the welding structure, and is therefore preferably made of aluminum in the present embodiment. For example, the width of the concave portion 22 is 560 mm.
In contrast, the width dimension of the concave portion 22 of the metal plate 24 is 1
It may be about 80 mm, and the longitudinal direction of the bolster 2 may be the same size, or may be shortened as shown. In some cases, the length may be increased.
【0027】金属板24は、図4における枕梁2の左側
端部に示すように、空気ばねとの連結用の孔17とそれ
に対向して枕梁上板2aに設けた孔23とを利用して、
枕梁2の空気ばねが連結される両端部にも設けておくこ
とができる。As shown in the left end of the bolster 2 in FIG. 4, the metal plate 24 uses a hole 17 for connection with an air spring and a hole 23 provided in the upper bolster plate 2a opposed thereto. do it,
It can also be provided at both ends of the bolster 2 where the air springs are connected.
【0028】なお、本実施の形態の枕梁2は図1、図2
に示すように、同一断面形状をしたアルミニウム製の中
空押出し形材を2つ左右対称に付き合せて枕梁上板2a
どうしと枕梁下板2bどうしに施した溶接接合部31に
より一体に結合したものを採用しており、3つの中空部
32が並んだその外側に枕梁上板2aおよび枕梁上板2
aが張りだしフランジ状の両側辺2a1を形成してい
る。そして凹部22はこのフランジ状の両側辺2a1の
間の領域に形成され、実質的に強度上問題のない設計に
なっている。心皿中心ピン14に対応する今1つの孔2
3部分の金属板24は孔23の直径に近い大きさを持っ
た四角形状としてあり、床5の下面との間で結合されて
いる部分間の距離が大きくなるのを極力抑えて牽引部6
からの前後力を受けて負荷が掛かり易い部分で二次的に
異音が発生するようなことが万一にも起きないようにし
てある。空気ばねに対応する今1つの孔23部分の金属
板24は孔23の直径に対し前記の心皿中心ピン14に
対応する部分のそれよりも大きくしてある。なお、枕梁
2をどのような形材でどのように形成してもよいが、強
度上一体構造であるのが好ましく、組み立ての作業性か
ら台枠3を組み立てる段階で既に一体に形成されている
のが好ましい。The bolster 2 of the present embodiment is shown in FIGS.
As shown in the figure, two aluminum hollow extruded profiles having the same cross-sectional shape are symmetrically attached to each other, and a pillow upper plate 2a
The lower and upper bolsters 2b are joined together by a welded joint 31 provided between the upper and lower bolsters 2b.
a is formed to form flanged side edges 2a1. The concave portion 22 is formed in a region between the flange-shaped side edges 2a1, and is designed to have substantially no problem in strength. One hole 2 corresponding to the center pin 14
The three portions of the metal plate 24 are formed in a rectangular shape having a size close to the diameter of the hole 23, and the distance between the portions connected to the lower surface of the floor 5 is suppressed as much as possible to minimize the traction portion 6.
In this way, it is possible to prevent the occurrence of secondary noise at a portion where a load is likely to be applied due to the front-rear force. The metal plate 24 in the portion of the hole 23 corresponding to the air spring is made larger in diameter of the hole 23 than that in the portion corresponding to the center pin 14 described above. The bolster 2 may be formed of any shape and in any manner, but it is preferable that the bolster 2 has an integral structure in terms of strength, and is formed integrally at the stage of assembling the underframe 3 from the viewpoint of workability of assembly. Is preferred.
【0029】また、床5の形材4は図5に示すように5
つのアルミニウム製のトラス断面を持った中空形材を左
右で対象になるように形成してあり、それぞれ車体全長
で通しで設けられ相互間と側梁11との間が溶接接合部
29にて一体に結合されている。しかし、この床5の形
材4もどのような断面形状のものを用いてもよいが、前
記のように通しで設けると部品点数が少なくなるし、車
体の剛性が向上する。Further, as shown in FIG.
A hollow profile having two aluminum truss sections is formed so as to be symmetrical on the left and right sides. Is joined to. However, the section 4 of the floor 5 may have any cross-sectional shape. However, if the section 4 is provided as described above, the number of parts is reduced, and the rigidity of the vehicle body is improved.
【0030】[0030]
【発明の効果】本発明によれば、上記の説明で明らかな
ように、枕梁上板の上面と床下板の下面との、枕梁が床
と結合される両側辺部を除く部分に設けた隙間によっ
て、枕梁およぶ床に捩れが生じて枕梁上板および床下板
が板状であることにより面外変形することがあっても、
この面外変形によって枕梁上板と床下板とが摺動し合
い、ぶつかり合うのを防止して、異音が発生するような
ことを防止することができる。According to the present invention, as is apparent from the above description, the upper and lower surfaces of the upper bolster and the lower floor are provided at portions except for both side portions where the bolster is connected to the floor. Due to the gap, the torso and the floor may be twisted and the upper and lower bolsters may be out of plane due to the plate shape,
This out-of-plane deformation prevents the upper bolster plate and the lower floor plate from sliding and colliding with each other, thereby preventing generation of abnormal noise.
【図1】本発明の実施の形態に係る鉄道車両の台枠にお
ける枕梁と床との結合構造の1つの例を示す主要部分の
断面図である。FIG. 1 is a cross-sectional view of a main part showing one example of a connection structure between a bolster and a floor in an underframe of a railway vehicle according to an embodiment of the present invention.
【図2】図1の結合構造部分における枕梁とボルスタレ
ス台車の牽引部との結合構造を示す断面図である。FIG. 2 is a cross-sectional view showing a connection structure between a bolster beam and a traction portion of a bolsterless bogie in a connection structure portion of FIG. 1;
【図3】本発明の実施の形態に係る鉄道車両の台枠にお
ける枕梁と床との結合構造の別の例を示す主要部分の断
面図である。FIG. 3 is a cross-sectional view of a main part showing another example of a connection structure between a bolster and a floor in an underframe of a railway vehicle according to an embodiment of the present invention.
【図4】図1、図2の例の枕梁・床結合構造を採用した
台枠における枕梁と床と凹部と金属板との関係を示し、
枕梁の長手方向半部を断面した平面図である。FIG. 4 shows a relationship between a pillow, a floor, a recess, and a metal plate in an underframe adopting the pillow / floor coupling structure of the example of FIGS. 1 and 2,
It is the top view which cross-sectioned the longitudinal direction half part of the bolster.
【図5】図4の台枠の横断面図である。FIG. 5 is a cross-sectional view of the underframe of FIG. 4;
【図6】先の改良例を示す台枠および床の要部の平面図
である。FIG. 6 is a plan view of an underframe and a main part of a floor showing the above-mentioned improvement.
【図7】図6の横断面図である。FIG. 7 is a cross-sectional view of FIG.
【図8】図7の枕梁を横断する方向で見た断面図であ
る。FIG. 8 is a cross-sectional view as seen in a direction crossing the bolster of FIG. 7;
【図9】従来の鉄道車両の台枠における枕梁・床結合構
造を示す要部の断面図である。FIG. 9 is a cross-sectional view of a main part showing a bolster / floor coupling structure in an underframe of a conventional railway vehicle.
【図10】図9の枕梁・床結合構造を採用している台枠
とボルスタレス台車との結合構造を示す断面図である。FIG. 10 is a cross-sectional view showing a connection structure between an underframe and a bolsterless carriage adopting the bolster / floor connection structure of FIG. 9;
【図11】図10の要部の平面図である。FIG. 11 is a plan view of a main part of FIG. 10;
1、4 形材 2 枕梁 2a 枕梁上板 2b 枕梁下板 2a1 両側辺 2a2 両端側辺 2a3 幅方向中央部分 3 台枠 5 床 5a 床下板 6 牽引部 7 ボルスタレス台車 12 心皿 14 心皿中心ピン 15、23、27 孔 16、25、26 溶接接合部 21 隙間 22 凹部 24 金属板 1, 4 shaped material 2 Pillow 2a Pillow upper plate 2b Pillow lower plate 2a1 Both sides 2a2 Both ends side 2a3 Width central part 3 Frame 5 Floor 5a Floor lower plate 6 Traction unit 7 Bolsterless trolley 12 Core plate 14 Core plate Center pin 15,23,27 hole 16,25,26 welded joint 21 gap 22 recess 24 metal plate
Claims (6)
面をなす枕梁上板と、この枕梁上板の上に載置した形材
よりなる床の下面をなす床下板とを、枕梁上板の両側辺
および両端側辺と床下板の下面との間に施した溶接接合
部により結合した鉄道車両の台枠における枕梁・床結合
構造において、 枕梁上板の上面における両側辺部分を除く幅方向中央部
分と床との間に隙間を形成したことを特徴とする鉄道車
両の台枠における枕梁・床結合構造。A pillow upper plate forming an upper surface of a single-piece bolster supported by a cart, and a lower floor plate forming a lower surface of a floor made of a profile placed on the pillow upper plate, In a pillow / floor joint structure for a railcar underframe joined by welded joints provided between both side edges and both side edges of the bolster upper plate and the lower surface of the underfloor plate, both sides on the upper surface of the pillow upper plate A beam / floor joint structure for an underframe of a railway vehicle, wherein a gap is formed between the floor and a center portion in a width direction excluding a side portion.
枕梁下板の中心部にボルスタレス台車における牽引部の
心皿中心ピンと嵌り合うように設けられた孔と対向す
る、今1つの孔を設け、または、枕梁上板における中心
部に、枕梁の下面をなす枕梁下板の中心部にボルスタレ
ス台車における牽引部の心皿中心ピンと嵌り合うように
設けられた孔と対向する、今1つの孔を、枕梁の両端部
における空気ばね給気座取付け孔と対向する、今1つの
孔を、それぞれ設け、枕梁と床との間で前記今1つの孔
を上方から塞ぎ前記隙間を今1つの孔の近傍で埋める金
属板を設け、この金属板はその周辺部と床の下面との間
に施した溶接接合部により床に結合され、その下面と前
記今1つの孔の口縁との間に施した溶接接合部により枕
梁に結合されている請求項1に記載の鉄道車両の台枠に
おける枕梁・床結合構造。2. A center portion of the upper bolster plate facing a hole provided at a center portion of the lower bolster plate forming the lower surface of the bolster so as to fit with a center pin of a pulling portion of the bolsterless carriage. Another hole is provided, or a hole is provided at the center of the upper plate of the bolster, at the center of the lower plate of the bolster which forms the lower surface of the bolster, so as to fit with the center pin of the pulling portion of the bolsterless carriage. And another hole is provided opposite to the air spring air supply seat mounting holes at both ends of the bolster, respectively, and the another hole is provided between the bolster and the floor. A metal plate is provided that closes from above and fills the gap in the vicinity of the one hole, the metal plate being joined to the floor by a welded joint between its periphery and the lower surface of the floor. Contraction connected to the bolster by a weld joint between the lip of one hole The pillow / floor connection structure in the underframe of the railway vehicle according to claim 1.
よって形成している請求項1、2のいずれか1項に記載
の鉄道車両の台枠における枕梁・床結合構造。3. The pillow / floor joint structure in an underframe of a railway vehicle according to claim 1, wherein the gap is formed by a concave portion formed on the upper surface of the bolster upper plate.
るように形成されている請求項3に記載の鉄道車両の台
枠における枕梁・床結合構造。4. The tie-floor / floor joint structure for an underframe of a railway vehicle according to claim 3, wherein the recess is formed so as to be located at a height equal to or greater than a required height of the pillow.
によって形成している請求項1、2のいずれか1項に記
載の鉄道車両の台枠における枕梁・床結合構造。5. The structure of claim 1, wherein the gap is formed by a spacer interposed between the bolster and the floor.
項1〜5のいずれか1項に記載の鉄道車両の台枠におけ
る枕梁・床結合構造。6. A pillow beam / floor joint structure for an underframe of a railway vehicle according to any one of claims 1 to 5, wherein the pillow beam and the floor are made of a light metal profile.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000338799A JP3868203B2 (en) | 2000-11-07 | 2000-11-07 | Pillow beam / floor connection structure in railcar frame |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2000338799A JP3868203B2 (en) | 2000-11-07 | 2000-11-07 | Pillow beam / floor connection structure in railcar frame |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2002145060A true JP2002145060A (en) | 2002-05-22 |
JP3868203B2 JP3868203B2 (en) | 2007-01-17 |
Family
ID=18813955
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JP2000338799A Expired - Fee Related JP3868203B2 (en) | 2000-11-07 | 2000-11-07 | Pillow beam / floor connection structure in railcar frame |
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JP2017144911A (en) * | 2016-02-18 | 2017-08-24 | 日本車輌製造株式会社 | Railway vehicle body structure |
JP2018058387A (en) * | 2016-09-30 | 2018-04-12 | 株式会社日立製作所 | Rail vehicle body structure |
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