JP2006300313A - Brake disk for rolling stock - Google Patents

Brake disk for rolling stock Download PDF

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JP2006300313A
JP2006300313A JP2005360445A JP2005360445A JP2006300313A JP 2006300313 A JP2006300313 A JP 2006300313A JP 2005360445 A JP2005360445 A JP 2005360445A JP 2005360445 A JP2005360445 A JP 2005360445A JP 2006300313 A JP2006300313 A JP 2006300313A
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ribs
pins
long ribs
long
sliding plate
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JP4463192B2 (en
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Masa Yamanoi
雅 山野井
Masanori Kobayashi
正典 小林
Takeshi Fukuda
福田　　剛士
Hirobumi Wani
博文 和仁
Tetsuo Hatanaka
哲夫 畑中
Kazunari Hayamizu
一成 早水
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Kurimoto Ltd
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Kurimoto Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a brake disk for rolling stocks, which brake disk has a small resistance of air in rotation and can secure a sufficient cooling performance of a sliding disk portion. <P>SOLUTION: The cooling performance of the sliding disk portion 2 can be sufficiently secured as follows. A pair of the sliding disk portions 2 are connected by long ribs 3a and short ribs 3b which radially extend from the outer periphery of an annular shape portion 1 with alternately different lengths in the circumferential direction, and by a plurality of pins 4b, 4c provided between the long ribs 3a neighboring each other in the circumferential direction in order to reduce the resistance of the air in rotation by reducing the number of the long ribs 3a. In addition, the cooling ability of the pins 4b, 4c is improved by supplying the air, which is captured by the long ribs 3a and is delivered in the radially outward direction, to the pins 4b, 4c after straightening the air flow by means of the short ribs 3b arranged between the neighboring long ribs 3a. Thus, the deterioration of the cooling ability due to the reduction of the number of the long ribs 3a is compensated by improving the cooling ability of the pins 4b, 4c. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

本発明は、鉄道車両の車軸に取り付けられる鉄道車両用ブレーキディスクに関する。   The present invention relates to a railcar brake disc attached to an axle of a railcar.

鉄道車両用ブレーキディスクには、鉄道車両の車軸に取り付けられる環状部の外周側に、ブレーキパッドが押圧される２枚一対の摺動板部を軸方向で間隔を開けて設けたものがある。このような鉄道車両用ブレーキディスクでは、自動車用ブレーキディスクの数倍から数十倍の大きな制動負荷が加わり、摺動板部におけるブレーキパッドとの摩擦発熱が大きくなるので、摺動板部の冷却性能を高めるために、一対の摺動板部を放射状に延びる冷却リブで連結したものが多く採用されている（例えば、特許文献１参照）。特許文献１に記載されたものでは、車軸に取り付けられる環状部を外周側へ延長し、この延長した中板を介して各摺動板部を冷却リブで連結している。   Some railcar brake discs are provided with a pair of sliding plate portions that are pressed against a brake pad on the outer peripheral side of an annular portion that is attached to an axle of the railcar, spaced apart in the axial direction. In such a brake disc for a railway vehicle, a large braking load several times to several tens of times that of an automobile brake disc is applied, and frictional heat generation with the brake pad in the sliding plate portion increases, so that the sliding plate portion is cooled. In order to enhance the performance, a structure in which a pair of sliding plate portions are connected by cooling ribs extending radially is employed (see, for example, Patent Document 1). In the device described in Patent Document 1, an annular portion attached to an axle is extended to the outer peripheral side, and each sliding plate portion is connected by a cooling rib via the extended intermediate plate.

また、この種の鉄道車両用ブレーキディスクには、鉄道車両の走行中における回転時の空気抵抗を小さくするために、一対の摺動板部を多数のピン（控えピン）で連結したものもある（例えば、特許文献２参照）。特許文献２に記載されたものでは、車軸に取り付けられる環状部に保持フランジで摺動板部を連結し、最内周のピンを半径方向内方に保持フランジまで延びる補強リブと一体成形している。   Some types of brake discs for railway vehicles include a pair of sliding plate portions connected by a large number of pins (back pins) in order to reduce the air resistance during rotation while the railway vehicle is running. (For example, refer to Patent Document 2). In the one described in Patent Document 2, a sliding plate portion is connected to an annular portion attached to an axle by a holding flange, and an innermost pin is integrally formed with a reinforcing rib extending radially inward to the holding flange. Yes.

特開２０００−１３０４８１号公報（第１−３図）JP 2000-130481 A (FIG. 1-3) 特開昭５８−１４６７３４号公報（第１−２図）JP 58-146734 A (Fig. 1-2)

特許文献１に記載された摺動板部を冷却リブで連結した鉄道車両用ブレーキディスクは、冷却リブの表面積が大きいので摺動板部の冷却性能は優れているが、回転時の冷却リブの空気抵抗が大きく、鉄道車両の走行性能を低下させる問題がある。   The brake disc for railway vehicles in which the sliding plate portions described in Patent Document 1 are connected by cooling ribs has a large cooling rib surface area, so the sliding plate portion has excellent cooling performance. There is a problem that the air resistance is large and the running performance of the railway vehicle is lowered.

一方、特許文献２に記載された摺動板部をピンで連結した鉄道車両用ブレーキディスクは、回転時の空気抵抗は小さいが、ピンの表面積が小さく、かつ、ピンはあまり空気を捕えることができないので、摺動板部の冷却性能を十分に確保できない問題がある。   On the other hand, the brake disc for railway vehicles in which the sliding plate portions described in Patent Document 2 are connected by pins has low air resistance during rotation, but the surface area of the pins is small, and the pins can trap air too much. Since this is not possible, there is a problem that the cooling performance of the sliding plate portion cannot be secured sufficiently.

そこで、本発明の課題は、回転時の空気抵抗が小さく、摺動板部の冷却性能を十分に確保できる鉄道車両用ブレーキディスクを提供することである。   SUMMARY OF THE INVENTION An object of the present invention is to provide a railway vehicle brake disc that has a low air resistance during rotation and that can sufficiently secure the cooling performance of the sliding plate portion.

上記の課題を解決するために、本発明は、鉄道車両の車軸に取り付けられる環状部の外周側に、２枚一対の摺動板部を軸方向で間隔を開けて設けた鉄道車両用ブレーキディスクにおいて、前記一対の摺動板部を、前記環状部の外周から放射状に、円周方向で１個おきまたは複数個おきに長短異なる長さで延びる長リブおよび短リブと、円周方向で隣り合う前記長リブ間に設けた複数のピンとで連結した構成を採用した。   In order to solve the above-described problems, the present invention provides a brake disc for a railway vehicle in which a pair of sliding plate portions are provided on the outer peripheral side of an annular portion attached to the axle of the railway vehicle with an interval in the axial direction. In the above, the pair of sliding plate portions are adjacent to each other in the circumferential direction radially extending from the outer periphery of the annular portion, with long ribs and short ribs extending every other or every other length in the circumferential direction. A configuration in which a plurality of pins provided between the matching long ribs is connected is adopted.

すなわち、一対の摺動板部を、環状部の外周から放射状に、円周方向で１個おきまたは複数個おきに長短異なる長さで延びる長リブおよび短リブと、円周方向で隣り合う長リブ間に設けた複数のピンとで連結することにより、長リブの数を減らして回転時の空気抵抗を小さくするとともに、長リブで捕えられて半径方向外方へ送り込まれる空気をその間の短リブで整流して、長リブ間に設けた複数のピンに送り込み、これらのピンによる冷却能力を高めて長リブの数の減少に伴う冷却能力の減少を補うようにして、摺動板部の冷却性能を十分に確保できるようにした。   That is, a pair of sliding plate portions are radially adjacent from the outer periphery of the annular portion, and are adjacent to each other in the circumferential direction with long ribs and short ribs extending in different lengths in the circumferential direction. By connecting with a plurality of pins provided between the ribs, the number of long ribs is reduced to reduce the air resistance during rotation, and the air trapped by the long ribs and sent radially outward is short ribs between them In order to cool down the sliding plate, it is fed to a plurality of pins provided between the long ribs, and the cooling capacity by these pins is increased to compensate for the decrease in cooling capacity due to the decrease in the number of long ribs. I was able to secure enough performance.

前記隣り合う長リブ間に設けた複数のピンの一部を、前記短リブの外方への延長線上に配列することにより、これらのピンでも長リブで捕えられて半径方向外方へ送り込まれる空気を整流し、長リブ間に設けた複数のピンの冷却能力をより高めることができる。   By arranging a part of a plurality of pins provided between the adjacent long ribs on the outward extension line of the short ribs, these pins are also caught by the long ribs and fed outward in the radial direction. Air can be rectified, and the cooling capacity of the plurality of pins provided between the long ribs can be further increased.

前記ブレーキディスクを前記長リブを設けた半径方向断面を分割面として複数に分割し、この分割面に位置して前記半径方向断面で分割される長リブに、前記分割したブレーキディスクの結合部を設けることにより、分割したブレーキディスクを結合するための別途のフランジ等を不要とすることができる。   The brake disc is divided into a plurality of radial cross sections provided with the long ribs as a dividing surface, and a connecting portion of the divided brake discs is formed on the long ribs that are located on the dividing surface and divided by the radial cross section. By providing, a separate flange or the like for connecting the divided brake discs can be eliminated.

本発明の鉄道車両用ブレーキディスクは、一対の摺動板部を、環状部の外周から放射状に、円周方向で１個おきまたは複数個おきに長短異なる長さで延びる長リブおよび短リブと、円周方向で隣り合う長リブ間に設けた複数のピンとで連結したので、長リブの数を減らして回転時の空気抵抗を小さくできるとともに、長リブで捕えられて半径方向外方へ送り込まれる空気をその間の短リブで整流して、長リブ間に設けた複数のピンに送り込み、これらのピンによる冷却能力を高めて長リブの数の減少に伴う冷却能力の減少を補って、摺動板部の冷却性能を十分に確保することができる。   The brake disk for a railway vehicle according to the present invention includes a long rib and a short rib extending from the outer periphery of the annular portion in a radial direction from the outer periphery of the annular portion to every other one or a plurality of different lengths in the circumferential direction. Because it is connected with a plurality of pins provided between adjacent long ribs in the circumferential direction, the number of long ribs can be reduced to reduce the air resistance during rotation, and it is caught by the long ribs and sent radially outward The air is rectified by the short ribs between them and sent to a plurality of pins provided between the long ribs, and the cooling capacity by these pins is increased to compensate for the decrease in cooling capacity due to the decrease in the number of long ribs. Sufficient cooling performance of the moving plate portion can be ensured.

前記隣り合う長リブ間に設けた複数のピンの一部を、短リブの外方への延長線上に配列することにより、これらのピンでも長リブで捕えられて半径方向外方へ送り込まれる空気を整流し、長リブ間に設けた複数のピンの冷却能力をより高めることができる。   By arranging a part of the plurality of pins provided between the adjacent long ribs on the outward extension line of the short ribs, these pins are also captured by the long ribs and are sent radially outward. The cooling capacity of the plurality of pins provided between the long ribs can be further increased.

前記ブレーキディスクを長リブを設けた半径方向断面を分割面として複数に分割し、この分割面に位置して前記半径方向断面で分割される長リブに、分割したブレーキディスクの結合部を設けることにより、分割したブレーキディスクを結合するための別途のフランジ等を不要とすることができる。   The brake disc is divided into a plurality of sections with a radial cross section provided with a long rib as a dividing surface, and a coupling portion of the divided brake disk is provided on the long rib positioned on the dividing surface and divided by the radial cross section. This eliminates the need for a separate flange or the like for connecting the divided brake discs.

以下、図面に基づき、本発明の実施形態を説明する。図１および図２は、第１の実施形態を示す。図１に示すように、この鉄道車両用ブレーキディスクは円周方向で２分割した分割型ブレーキディスクであり、鉄道車両の車軸に取り付けられるボルト孔１ａが設けられた環状部１の外周側に、２枚一対の摺動板部２が軸方向で間隔を開けて設けられ、一対の摺動板部２が、環状部１の外周から放射状に、円周方向で１個おきに長短異なる長さで延びる長リブ３ａおよび短リブ３ｂと、円周方向で隣り合う長リブ３ａ間に設けられた複数のピン４ｂ、４ｃおよび各長リブ３ａの外方に設けられたピン４ａとで連結されている。   Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a first embodiment. As shown in FIG. 1, this railcar brake disc is a split type brake disc that is divided into two in the circumferential direction. On the outer peripheral side of the annular portion 1 provided with bolt holes 1a attached to the axle of the railcar, A pair of two sliding plate portions 2 are provided at an interval in the axial direction, and the pair of sliding plate portions 2 are radially different from the outer periphery of the annular portion 1 and have different lengths every other piece in the circumferential direction. And a plurality of pins 4b, 4c provided between adjacent long ribs 3a in the circumferential direction and a pin 4a provided outside each long rib 3a. Yes.

前記ブレーキディスクが２分割される分割面となる半径方向断面には、外周端まで延び、分割面で分割された長リブ３ｃが設けられ、図２（ａ）に示すように、この長リブ３ｃと分割された他方の長リブ（図示省略）とを結合するための結合部５が設けられている。   The radial cross section serving as a dividing surface into which the brake disk is divided into two is provided with long ribs 3c extending to the outer peripheral end and divided by the dividing surfaces. As shown in FIG. And a coupling portion 5 for coupling the other long rib (not shown).

前記長リブ３ａ間に設けられたピン４ｃは、長リブ３ａと短リブ３ｂとの間で半径方向へ直線状に４本ずつ配列され、図２（ｂ）に示すように、ピン４ｂは短リブ３ｂの外方への延長線上に３本配列されている。したがって、長リブ３ａで捕えられて半径方向外方へ送り込まれる空気は短リブ３ｂと各ピン４ｂで整流されて各ピン４ｃに送り込まれ、これらの各ピン４ｃにより冷却能力が高められて、長リブ３ａの数の減少に伴う冷却能力の減少が補われる。また、図２（ｃ）に示すように、ピン４ａは長リブ３ａの外方への延長線上に１本設けられており、このピン４ａも長リブ３ａで捕えられた空気を整流する効果がある。   Four pins 4c provided between the long ribs 3a are arranged linearly in the radial direction between the long ribs 3a and the short ribs 3b. As shown in FIG. 2B, the pins 4b are short. Three of the ribs 3b are arranged on the outward extension line. Therefore, the air trapped by the long rib 3a and sent radially outward is rectified by the short rib 3b and each pin 4b and sent to each pin 4c. The decrease in cooling capacity accompanying the decrease in the number of ribs 3a is compensated. As shown in FIG. 2C, one pin 4a is provided on the outward extension line of the long rib 3a, and this pin 4a also has the effect of rectifying the air captured by the long rib 3a. is there.

図３および図４（ａ）、（ｂ）は、第２の実施形態を示す。この鉄道車両用ブレーキディスクは円周方向で分割していない一体型ブレーキディスクであり、ボルト孔１ａが設けられた環状部１が外周側に延長され、この外周側に延長された中板６を介して、２枚一対の摺動板部２が長リブ３ａおよび短リブ３ｂと各ピン４ａ、４ｂ、４ｃとで連結されている点が第１の実施形態のものと異なる。また、長リブ３ａの外方には２本のピン４ａが、短リブ３ｂの外方には４本のピン４ｂが延長線上に配列され、長リブ３ａと短リブ３ｂとの間には、３本ずつのピン４ｃが半径方向へ直線状に配列されている。その他の部分は、第１の実施形態のものと同じである。   3 and 4 (a) and 4 (b) show a second embodiment. This railcar brake disc is an integrated brake disc that is not divided in the circumferential direction. An annular portion 1 provided with a bolt hole 1a is extended to the outer peripheral side, and an intermediate plate 6 extended to the outer peripheral side is provided. Accordingly, the pair of the sliding plate portions 2 is different from that of the first embodiment in that the long rib 3a and the short rib 3b are connected by the pins 4a, 4b, and 4c. In addition, two pins 4a are arranged on the outside of the long rib 3a, and four pins 4b are arranged on the extension line outside the short rib 3b, and between the long rib 3a and the short rib 3b, Three pins 4c are arranged linearly in the radial direction. Other parts are the same as those of the first embodiment.

前記中板６は、ブレーキディスクの剛性を高める効果があるとともに、その外周部分をディスクバランスを取る際の削り代とすることができる。なお、この中板６を有するブレーキディスクは、第１の実施形態のような分割型のものとすることもできる。   The intermediate plate 6 has an effect of increasing the rigidity of the brake disc, and the outer peripheral portion thereof can be used as a cutting allowance when balancing the disc. Note that the brake disc having the intermediate plate 6 may be of a split type as in the first embodiment.

図５および図６（ａ）、（ｂ）、（ｃ）は、第３の実施形態を示す。この鉄道車両用ブレーキディスクも一体型ブレーキディスクであり、一対の摺動板部２ａ、２ｂが内周側へ延長され、一方の摺動板部２ａが湾曲して環状部１と連なるとともに、この内周側へ延長された両摺動板部２ａ、２ｂの内周端まで長リブ３ａが延長されている点が第１の実施形態のものと異なる。また、長リブ３ａと短リブ３ｂの外方には１本ずつのピン４ａ、４ｂが配設され、長リブ３ａと短リブ３ｂとの間には、２本ずつのピン４ｃが半径方向へ直線状に配列されている。その他の部分は、第１の実施形態のものと同じである。この実施形態では、内周側へ延長された長リブ３ａによって、同じく内周側へ延長された両摺動板部２ａ、２ｂの間へ積極的に空気が送り込まれ、各リブ３ａ、３ｂや各ピン４ａ、４ｂ、４ｃによる冷却効果がより高められることが期待できる。   5 and 6 (a), 6 (b) and 6 (c) show a third embodiment. This railcar brake disc is also an integrated brake disc, and a pair of sliding plate portions 2a, 2b are extended to the inner peripheral side, and one sliding plate portion 2a is curved and is connected to the annular portion 1. The point from which the long rib 3a is extended to the inner peripheral end of both sliding board part 2a, 2b extended to the inner peripheral side differs from the thing of 1st Embodiment. Further, one pin 4a, 4b is provided outside the long rib 3a and the short rib 3b, and two pins 4c are provided in the radial direction between the long rib 3a and the short rib 3b. They are arranged in a straight line. Other parts are the same as those of the first embodiment. In this embodiment, air is actively sent between the sliding plate portions 2a, 2b, which are also extended to the inner peripheral side, by the long ribs 3a extended to the inner peripheral side, and the ribs 3a, 3b, It can be expected that the cooling effect by the pins 4a, 4b, 4c is further enhanced.

上述した各実施形態では、摺動板部の円周方向で長リブを短リブと１個おきに設けたが、長リブは２個おきや３個おき等の複数個おきに設けてもよい。また、隣り合う長リブ間に設ける複数のピンの本数や配列形態は実施形態のものに限定されることはなく、任意の本数と配列形態とすることができる。さらに、各長リブの外方への延長線上には必ずしもピンを設ける必要はなく、各長リブを摺動板部の外周端まで延長してもよい。   In each of the embodiments described above, the long ribs are provided every other short rib in the circumferential direction of the sliding plate portion. However, the long ribs may be provided every other plural number such as every two or every three. . Further, the number and arrangement form of a plurality of pins provided between adjacent long ribs are not limited to those of the embodiment, and any number and arrangement form can be adopted. Furthermore, it is not always necessary to provide a pin on the outward extension line of each long rib, and each long rib may be extended to the outer peripheral end of the sliding plate portion.

第１の実施形態の鉄道車両用ブレーキディスクを示す一部省略切欠き正面図A partially omitted cutaway front view showing a brake disk for a railway vehicle according to the first embodiment ａ、ｂ、ｃは、それぞれ図１のIIa矢視、IIb矢視、IIc矢視での断面図a, b and c are cross-sectional views taken along arrows IIa, IIb and IIc in FIG. 1, respectively. 第２の実施形態の鉄道車両用ブレーキディスクを示す一部省略切欠き正面図A partially omitted cutaway front view showing a brake disk for a railway vehicle according to a second embodiment ａ、ｂは、それぞれ図３のIVa矢視、IVb矢視での断面図a and b are sectional views taken along arrows IVa and IVb in FIG. 3, respectively. 第３の実施形態の鉄道車両用ブレーキディスクを示す一部省略切欠き正面図A partially omitted cutaway front view showing a brake disk for a railway vehicle according to a third embodiment ａ、ｂ、ｃは、それぞれ図５のVIa矢視、VIb矢視、VIc矢視での断面図a, b, and c are cross-sectional views taken along arrows VIa, VIb, and VIc, respectively, of FIG.

符号の説明Explanation of symbols

１ 環状部
１ａ ボルト孔
２、２ａ、２ｂ 摺動板部
３ａ、３ｂ、３ｃ リブ
４ａ、４ｂ、４ｃ ピン
５ 結合部
６ 中板 1 annular part 1a bolt hole 2, 2a, 2b sliding plate part 3a, 3b, 3c rib 4a, 4b, 4c pin 5 connecting part 6 middle plate

Claims (3)

鉄道車両の車軸に取り付けられる環状部の外周側に、２枚一対の摺動板部を軸方向で間隔を開けて設けた鉄道車両用ブレーキディスクにおいて、前記一対の摺動板部を、前記環状部の外周から放射状に、円周方向で１個おきまたは複数個おきに長短異なる長さで延びる長リブおよび短リブと、円周方向で隣り合う前記長リブ間に設けた複数のピンとで連結したことを特徴とする鉄道車両用ブレーキディスク。   In a railcar brake disc in which two pairs of sliding plate portions are provided on the outer peripheral side of an annular portion attached to an axle of a railway vehicle with an interval in the axial direction, the pair of sliding plate portions are arranged in the annular shape. Connected by long ribs and short ribs that extend radially from the outer periphery of the portion in different directions in the circumferential direction, and a plurality of pins provided between the long ribs adjacent in the circumferential direction Brake disc for railway vehicles characterized by 前記隣り合う長リブ間に設けた複数のピンの一部を、前記短リブの外方への延長線上に配列した請求項１に記載の鉄道車両用ブレーキディスク。   The brake disk for a railway vehicle according to claim 1, wherein a part of a plurality of pins provided between the adjacent long ribs is arranged on an outward extending line of the short ribs. 前記ブレーキディスクを前記長リブを設けた半径方向断面を分割面として複数に分割し、この分割面に位置して前記半径方向断面で分割される長リブに、前記分割したブレーキディスクの結合部を設けた請求項１または２に記載の鉄道車両用ブレーキディスク。   The brake disc is divided into a plurality of radial cross sections provided with the long ribs as a dividing surface, and a connecting portion of the divided brake discs is formed on the long ribs that are located on the dividing surface and divided by the radial cross section. The brake disk for railway vehicles according to claim 1 or 2 provided.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009216113A (en) * 2008-03-07 2009-09-24 Sumitomo Metal Ind Ltd Brake disk for rail vehicle
JP2021060106A (en) * 2019-10-09 2021-04-15 マツダ株式会社 Disc rotor for vehicular brake

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109578473B (en) * 2017-09-28 2021-01-01 长城汽车股份有限公司 Ventilated brake disc and disc brake

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009216113A (en) * 2008-03-07 2009-09-24 Sumitomo Metal Ind Ltd Brake disk for rail vehicle
JP2021060106A (en) * 2019-10-09 2021-04-15 マツダ株式会社 Disc rotor for vehicular brake
JP7400318B2 (en) 2019-10-09 2023-12-19 マツダ株式会社 Vehicle brake disc rotor

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