JPWO2014024315A1 - Railcar bogie - Google Patents

Railcar bogie Download PDF

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JPWO2014024315A1
JPWO2014024315A1 JP2014529232A JP2014529232A JPWO2014024315A1 JP WO2014024315 A1 JPWO2014024315 A1 JP WO2014024315A1 JP 2014529232 A JP2014529232 A JP 2014529232A JP 2014529232 A JP2014529232 A JP 2014529232A JP WO2014024315 A1 JPWO2014024315 A1 JP WO2014024315A1
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shaft
shaft spring
box
spring
axle
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JP5969033B2 (en
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敬 高平
敬 高平
真樹 神田
真樹 神田
龍一 中野
龍一 中野
克行 岩崎
克行 岩崎
隆夫 渡邊
隆夫 渡邊
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Hitachi Ltd
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Hitachi Ltd
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/305—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes incorporating rubber springs
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
    • B61F5/00—Constructional details of bogies; Connections between bogies and vehicle underframes; Arrangements or devices for adjusting or allowing self-adjustment of wheel axles or bogies when rounding curves
    • B61F5/26—Mounting or securing axle-boxes in vehicle or bogie underframes
    • B61F5/30—Axle-boxes mounted for movement under spring control in vehicle or bogie underframes
    • B61F5/36—Arrangements for equalising or adjusting the load on wheels or springs, e.g. yokes

Abstract

本発明は、台車(1)を吊り上げた時に、台車枠(5)から軸箱(64)が抜け落ちることを抑制するとともに、輪重比を容易に調整できる構成を備える鉄道車両用台車を提供することである。台車枠(5)を構成する側梁(10)と、輪軸を回動可能に保持する軸箱(64)と、前記側梁(10)と前記軸箱(64)との間に配設される軸ばね(70)と、を有し、前記軸ばね(70)は、円筒状の軸ばね上(72)と、釣鐘状の軸ばね下(76)と、前記軸ばね上(72)と前記軸ばね下(76)との間に配設される防振ゴム（74）と、から構成されている。The present invention provides a railcar bogie having a configuration in which the axle box (64) is prevented from falling off from the bogie frame (5) when the bogie (1) is lifted, and the wheel load ratio can be easily adjusted. That is. The side beam (10) constituting the carriage frame (5), the axle box (64) for rotatably holding the wheel shaft, and disposed between the side beam (10) and the axle box (64). A shaft spring (70) having a cylindrical shaft spring top (72), a bell-shaped shaft spring bottom (76), and the shaft spring top (72). And an anti-vibration rubber (74) disposed between the unsprung shaft (76).

Description

本発明は、台車枠と、輪軸と、輪軸を支持する軸箱と、軸箱を台車枠に支持する支持箱支持装置を有す鉄道車両用台車に係り、特に台車枠を吊り上げる際に軸箱が台車枠から分離することを抑制する軸箱支持装置を備える鉄道車両用台車に関する。   The present invention relates to a bogie for a railway vehicle having a bogie frame, an axle, an axle box that supports the axle, and a support box support device that supports the axle box on the carriage frame, and in particular, the axle box when lifting the carriage frame. The present invention relates to a bogie for a railway vehicle including an axle box support device that suppresses separation from a bogie frame.

特許文献１に、鉄道車両用台車を構成する台車枠を吊り上げた際に、輪軸を回動可能に支持する軸箱が抜け落ちることを抑制する構造が開示されている。この構造は、軸箱に固定される芯体と、台車枠に固定される外側部材と、芯体と外側部材とを連結する連結部材とから構成される。
外側部材に設けられた貫通孔を貫通する連結部材の一方の端部は芯体に固定されており、連結部材の他方の端部には貫通孔の外径より大きなが外径を有すフランジ部が備えられている。Patent Document 1 discloses a structure that suppresses falling off of an axle box that rotatably supports a wheel shaft when a carriage frame constituting a railway vehicle carriage is lifted. This structure includes a core body fixed to the axle box, an outer member fixed to the bogie frame, and a connecting member that connects the core body and the outer member.
One end of the connecting member that penetrates the through hole provided in the outer member is fixed to the core, and the other end of the connecting member has a flange larger than the outer diameter of the through hole but having an outer diameter. Department is provided.

この構成によって、台車枠が吊りあげられても、芯体に連結される連結部材の他方の端部に備えられるフランジ部が外側部材の貫通孔に係止されるため、台車枠から芯体が抜け落ちることがないとしている。   Even if the bogie frame is lifted by this configuration, the flange portion provided at the other end of the connecting member coupled to the core body is locked to the through hole of the outer member. It is said that it will not fall out.

特開平９−１９３７９５号公報JP-A-9-193895

台車を運搬する時など、台車をクレーン等で吊り上げた際に、車軸の両端部に一対の車輪を有す輪軸を回動可能に支持する軸箱が台車枠から分離しないことが望ましい。さらに、近年、比較的小さい曲率半径の曲線を鉄道車両が通過する際の安全性を高めるために、左右の各車輪がレールを押圧する荷重の比である輪重比を管理することが要求されている。この輪重比を管理するためには、台車を構成する台車枠と、台車枠に支持される軸箱との間に、台車枠と輪軸との間隔を調整できる高さ調整板を容易に挿入できる構造であることが必要である。   When the carriage is lifted by a crane or the like, such as when carrying the carriage, it is desirable that the axle box that rotatably supports the axle having a pair of wheels at both ends of the axle is not separated from the carriage frame. Furthermore, in recent years, in order to improve safety when a railway vehicle passes through a curve with a relatively small radius of curvature, it is required to manage a wheel load ratio, which is a ratio of loads at which the left and right wheels press the rail. ing. In order to manage this wheel load ratio, a height adjustment plate that can adjust the distance between the bogie frame and the wheel shaft is easily inserted between the bogie frame constituting the bogie and the axle box supported by the bogie frame. It is necessary to have a structure that can be used.

本発明の目的は、台車を吊り上げた時に、台車枠から軸箱が抜け落ちることを抑制するとともに、輪重比を容易に調整できる構成を備える鉄道車両用台車を提供することである。   An object of the present invention is to provide a railcar bogie having a configuration in which, when the bogie is lifted, the axle box is prevented from falling off from the bogie frame and the wheel load ratio can be easily adjusted.

本発明の鉄道車両用台車は、台車枠を構成する側梁と、輪軸を回動可能に保持する軸箱と、前記側梁と前記軸箱との間に配設される軸ばねと、を有し、前記軸ばねは、円筒状の軸ばね上と、釣鐘状の軸ばね下と、前記軸ばね上と前記軸ばね下との間に配設される弾性体と、から構成されている。
また、前記軸ばねを貫通する態様で前記側梁と前記軸箱とを接続する接続部材を備える鉄道車両用台車において、前記軸ばね下と前記軸箱との間に配設される軸ばね座下を備えており、前記軸ばね座下の下面の周縁部に備えられる鍔と、前記軸箱の上部に備えられるとともに前記鍔が当接される平面状の軸箱上端面と、前記鍔と前記軸箱上端面との間に備えられる輪重比を調整する高さ調整板と、を備えたことを特徴とする。A railcar bogie of the present invention includes a side beam that constitutes a bogie frame, a shaft box that rotatably holds a wheel shaft, and a shaft spring that is disposed between the side beam and the shaft box. And the shaft spring includes a cylindrical shaft spring, a bell-shaped shaft spring, and an elastic body disposed between the shaft spring and the shaft spring. .
In addition, in a railway vehicle carriage including a connecting member that connects the side beam and the axle box in a manner of penetrating the axle spring, an axle spring seat disposed between the axle spring lower part and the axle box. A hook provided at the peripheral edge of the lower surface of the lower part of the shaft spring seat, a flat shaft box upper end surface provided at the upper part of the shaft box and against which the hook contacts, and the hook And a height adjusting plate for adjusting a wheel load ratio provided between the upper end surface of the axle box.

本発明よれば、台車枠から軸箱が抜け落ちることを抑制するとともに、輪重比を容易に調整できる構成を備える鉄道車両用台車を提供することができる。   ADVANTAGE OF THE INVENTION According to this invention, while suppressing that a axle box falls out from a trolley | bogie frame, the trolley | bogie trolley | bogie provided with the structure which can adjust a wheel load ratio easily can be provided.

図１は、鉄道車両用台車の上面図である。FIG. 1 is a top view of a railway vehicle carriage. 図２は、台車枠を成す側梁のＡ−Ａ断面図である。FIG. 2 is a cross-sectional view taken along line AA of the side beam forming the carriage frame. 図３は、落下防止機構と高さ調整機構と備える軸箱の断面図（図２のＡ−Ａ断面）である。FIG. 3 is a cross-sectional view (cross section AA in FIG. 2) of a shaft box provided with a fall prevention mechanism and a height adjustment mechanism. 図４は、落下防止機構が機能した時の状態を示す断面図である。FIG. 4 is a cross-sectional view showing a state when the fall prevention mechanism functions.

以下、図面を参照して本発明を実施するための形態を説明する。   Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings.

図１は、鉄道車両用台車の上面図である。鉄道車両用台車１は、２本の車軸２３０の両端部に計４枚の車輪２４０を備えた輪軸を、台車枠５を構成する側梁１０の内側（軌道中心側、或いは、車軸２３０の長手方向の中央部）に配置した形態のインナーフレーム式台車である。輪軸は、輪軸を回動可能に保持する軸箱６４を介して、側梁１０の長手方向の両端部の下面に備えられる。   FIG. 1 is a top view of a railway vehicle carriage. The railcar bogie 1 is configured such that a wheel shaft provided with a total of four wheels 240 at both ends of two axles 230 is connected to the inner side of the side beam 10 constituting the bogie frame 5 (the track center side or the longitudinal axis of the axle 230). It is an inner-frame type carriage in a form arranged in the central portion of the direction. The wheel shaft is provided on the lower surface of both end portions in the longitudinal direction of the side beam 10 via a shaft box 64 that rotatably holds the wheel shaft.

台車枠５は、平行に隔置された側梁１０と、側梁１０の外側（軌道中心から離れる方向）において長手方向を側梁１０に平行に配置された空気ばね受台５０と、側梁１０及び空気ばね受台５０に対してその長手方向中央部において貫通した横梁２０とを備えている。側梁１０及び空気ばね受台５０と横梁２０とは各々溶接によって接合されている。台車枠５の俯瞰した際の形状は、略Ｈ型を成している。   The carriage frame 5 includes a side beam 10 spaced in parallel, an air spring cradle 50 whose longitudinal direction is arranged parallel to the side beam 10 outside the side beam 10 (in a direction away from the center of the track), and a side beam. 10 and the air spring pedestal 50 and a transverse beam 20 penetrating in the center in the longitudinal direction. The side beams 10, the air spring cradle 50, and the cross beam 20 are joined together by welding. The shape of the cart frame 5 when viewed from above is substantially H-shaped.

空気ばね受台５０の長手方向中央部の上面には、空気ばね取付け座を介して空気ばね２１０が取り付けられており、空気ばね２１０が車体（図示なし）の重量を支持する。高速走行時に台車１のヨーイング（台車中心ピン（図示なし）を回転中心とする水平面内の振動）を抑制するために、空気ばね受台５０の中央部の側面に備えられたヨーダンパ受と車体（図示なし）とを連結する態様でヨーダンパ２００が設けられている。   An air spring 210 is attached to the upper surface of the longitudinal center portion of the air spring cradle 50 via an air spring mounting seat, and the air spring 210 supports the weight of a vehicle body (not shown). In order to suppress yawing of the carriage 1 during high speed running (vibration in a horizontal plane with the center pin (not shown) as a rotation center), a yaw damper receiver and a vehicle body ( The yaw damper 200 is provided in such a manner as to be connected to the unillustrated).

各空気ばね受台５０には、その長手方向の両端部において、ブレーキ装置５６が備えられており、制動時にはブレーキ装置５６のブレーキシューが車輪２４０の両側面に備えられているブレーキディスク（図示なし）を挟圧してブレーキ力を得る。   Each air spring pedestal 50 is provided with a brake device 56 at both ends in the longitudinal direction, and a brake disk (not shown) in which brake shoes of the brake device 56 are provided on both side surfaces of the wheel 240 at the time of braking. ) To obtain the braking force.

鉄道車両用台車の構成を、ディスクブレーキを搭載したインナーフレーム式台車１を例に挙げて説明したが、以下に詳述する落下防止機構および高さ調整機構は、図１で説明した台車に限定されず、アウターフレーム式台車や、踏面ブレーキを備える台車にも適用することができる。   Although the configuration of the railcar bogie has been described by taking the inner frame bogie 1 equipped with a disc brake as an example, the fall prevention mechanism and the height adjustment mechanism described in detail below are limited to the bogie described in FIG. However, the present invention can also be applied to an outer frame type carriage and a carriage having a tread brake.

図２は、台車枠を成す側梁のＡ−Ａ断面図であり、図３は落下防止機構と高さ調整機構と備える軸箱の断面図（図２のＡ−Ａ断面）である。   FIG. 2 is a cross-sectional view taken along the line AA of the side beam forming the carriage frame, and FIG. 3 is a cross-sectional view (cross section taken along the line AA in FIG. 2) of the axle box including the fall prevention mechanism and the height adjustment mechanism.

台車枠５をなす側梁１０の長手方向の両端部に、下方に開放した側梁端部１２が備えられており、軸箱６４は、軸箱６４の上端部に備えられる軸ばね座下６８と、軸ばね座下６８に嵌入される軸ばね７０と、軸ばね７０の上端部に備えられる吊り金具８０と、を介して側梁端部１２に弾性支持される。   Side beam ends 12 that are open downward are provided at both ends in the longitudinal direction of the side beam 10 that forms the carriage frame 5, and the axle box 64 is below an axle spring seat 68 provided at the upper end of the axle box 64. Then, it is elastically supported by the side beam end portion 12 via the shaft spring 70 fitted into the shaft spring under seat 68 and the suspension fitting 80 provided at the upper end portion of the shaft spring 70.

軸箱６４の側梁１０の長手方向の中央部寄りには軸箱側突部６４ｃが備えられており、この軸箱側突部６４ｃと側梁１０に備えられる側梁リンク受け１０ｂとが軸箱前後リンク６２によって接続されている。軸箱前後リンク６２は、その長手方向の両端部に環状部を備えるとともに、この環状部に充填されたゴムの中央部に固定部を有している。軸箱前後リンク６２の両端部に具備される固定部が、軸箱側突部６４ｃと側梁リンク受け１０ｂとに連結されることによって、軸箱６４は側梁１０の長手方向に弾性支持されている。   An axial box side protrusion 64c is provided near the longitudinal center of the side beam 10 of the axle box 64, and the axle box side protrusion 64c and the side beam link receiver 10b provided on the side beam 10 are connected to each other. They are connected by a box front-rear link 62. The axle box front-rear link 62 includes annular portions at both ends in the longitudinal direction, and has a fixed portion at the center of the rubber filled in the annular portion. The shaft box 64 is elastically supported in the longitudinal direction of the side beam 10 by connecting fixed portions provided at both ends of the shaft box front and rear link 62 to the shaft box side protrusion 64c and the side beam link receiver 10b. ing.

軸ばね７０は、下部の外径が上部の外径より大きく設定されて下方に膨らみを有す円筒状の軸ばね上７２と、釣鐘状の軸ばね下７６と、軸ばね上７２と軸ばね下７６との間に配設される防振ゴム７４とから構成されており、防振ゴム７４は上下、左右、前後方向に変位できるので、軸箱６４の前述した３方向の変位に対応できる。防振ゴム７４と軸ばね上７２および軸ばね下７６とは接着されて一体となっている。防振ゴム７４は円筒状のものでもよいし、前後方向および左右方向に沿う態様で防振ゴム７４同士が対向する位置に離散的に備えても良い。   The shaft spring 70 includes a cylindrical shaft spring upper 72 having a lower outer diameter set larger than the upper outer diameter and having a bulge downward, a bell-shaped shaft spring lower 76, a shaft spring upper 72, and a shaft spring. The anti-vibration rubber 74 is disposed between the lower 76 and the anti-vibration rubber 74. The anti-vibration rubber 74 can be displaced in the vertical, horizontal, and longitudinal directions. . The anti-vibration rubber 74 and the upper shaft spring 72 and the lower shaft spring 76 are bonded together. The anti-vibration rubber 74 may be cylindrical, or may be provided discretely at positions where the anti-vibration rubbers 74 face each other in a manner along the front-rear direction and the left-right direction.

側梁端部１２の上面部１２ａの軸ばね７０の中心軸が交わる部位には、吊り金具８０が挿入される孔１２ｂが備えられるとともに、上面部１２ａの下面には軸ばね７０をなす軸ばね上７２の上端部が嵌入される凹部１２ｃが備えられる。   A portion of the upper surface portion 12a of the side beam end portion 12 where the central axis of the shaft spring 70 intersects is provided with a hole 12b into which the suspension fitting 80 is inserted, and a shaft spring forming the shaft spring 70 on the lower surface of the upper surface portion 12a. A recess 12c into which the upper end of the upper 72 is inserted is provided.

凹部１２ｃを備えることによって、下方に開口する態様で備えられる側梁端部１２に軸ばね７０を固定する際に、軸ばね上７２を凹部１２ｃに嵌入できるので、軸ばね７０を容易に位置決めすることができる。さらに、凹部１２ｃに軸ばね上７２が嵌入されているので、軸箱６４が左右、前後方向の変位した時に、凹部１２ｃの垂直面が上面部１２ａと軸ばね上７２との間に生じるせん断荷重を負担するので、ボルト１０２が受け持つせん断荷重を小さくできる。このため、小さいサイズのボルト１０２を選定することができるとともに、ボルト１０２が挿入される軸ばね上７２の厚みも小さくできる。したがって、凹部１２ｃを設けたことによる上面部１２ａと、軸ばね７０の軽量化を促進することができる。   By providing the recess 12c, when the shaft spring 70 is fixed to the side beam end portion 12 provided in a mode of opening downward, the shaft spring upper 72 can be fitted into the recess 12c, so that the shaft spring 70 is easily positioned. be able to. Furthermore, since the shaft spring upper 72 is fitted into the recess 12c, the shear load generated between the upper surface portion 12a and the shaft spring upper 72 when the shaft box 64 is displaced in the left-right and front-back directions. Therefore, the shear load that the bolt 102 takes can be reduced. For this reason, a small-sized bolt 102 can be selected, and the thickness of the upper shaft spring 72 into which the bolt 102 is inserted can be reduced. Therefore, the weight reduction of the upper surface part 12a and the shaft spring 70 by providing the recessed part 12c can be promoted.

吊り金具８０は円筒部材と、円筒部材の上端部から半径方向に延びる鍔８０ａとからなり、円筒部材の外径は孔１２ｂの内径より少し小さく、鍔８０ａの外径は孔１２ｂの内径より大きく設定されている。吊り金具８０は、円筒部材が孔１２ｂに挿入されるとともに鍔８０ａが上面部１２ａの上方に位置し、且つ、軸ばね下７６の水平部７６ａに円筒部材の下端部が載置される態様で、ボルト１００によって軸箱６４に接続している。   The suspension fitting 80 includes a cylindrical member and a flange 80a extending in the radial direction from the upper end of the cylindrical member. The outer diameter of the cylindrical member is slightly smaller than the inner diameter of the hole 12b, and the outer diameter of the flange 80a is larger than the inner diameter of the hole 12b. Is set. In the hanging metal fitting 80, the cylindrical member is inserted into the hole 12b, the flange 80a is positioned above the upper surface portion 12a, and the lower end portion of the cylindrical member is placed on the horizontal portion 76a of the shaft spring bottom 76. The bolt 100 is connected to the axle box 64.

鍔８０ａの下面と上面部１２ａとの間は隙間Ｇ（図３参照）が設けられているので、吊り金具８０は鍔８０ａが上面部１２ａに当接しない範囲において、軌道不整等に起因して軸ばね７０が側梁１０に対して上下に変位しても、鍔８０ａと上面部１２ａとが衝突することはなく軸ばね７０の側梁１０に対する上下変位は阻害されない。   Since a gap G (see FIG. 3) is provided between the lower surface of the flange 80a and the upper surface portion 12a, the suspension fitting 80 is caused by an irregular track or the like in a range where the flange 80a does not contact the upper surface portion 12a. Even if the axial spring 70 is displaced vertically with respect to the side beam 10, the flange 80a and the upper surface portion 12a do not collide with each other, and the vertical displacement of the axial spring 70 with respect to the side beam 10 is not hindered.

軸ばね７０を構成する軸ばね上７２の上端部にはネジ部が備えられており、軸ばね上７２の上端部が上面部１２ａに設けられた凹部１２ｃに嵌入されるとともに、上面部１２ａにボルト１０２で固定される。軸ばね７０を構成する軸ばね下７６の上端部には水平部７６ａが設けられており、水平部７６ａの中央部には後述するボルト１００が貫通する孔が備えられている。水平部７６ａの上面には、孔１２ｂを貫通する態様で備えられる吊り金具８０の円筒部材の下端部が載置される。   The upper end portion of the shaft spring upper 72 constituting the shaft spring 70 is provided with a threaded portion. The upper end portion of the shaft spring upper 72 is fitted into the recess 12c provided in the upper surface portion 12a, and the upper surface portion 12a is provided with the upper end portion. It is fixed with bolts 102. A horizontal portion 76a is provided at the upper end portion of the shaft spring lower portion 76 that constitutes the shaft spring 70, and a hole through which a bolt 100 described later passes is provided at the center portion of the horizontal portion 76a. On the upper surface of the horizontal portion 76a, the lower end portion of the cylindrical member of the suspension fitting 80 provided in a manner penetrating the hole 12b is placed.

一方、輪軸を回動可能に保持する軸箱６４の上端部には水平面をなす軸箱上端面６４ｂが備えられており、軸箱上端面６４ｂの中央部から鉛直上方に延びる態様で円筒状の軸箱上突部６４ａが設けられている。軸箱上突部６４ａの上端部にはネジ座（雌ネジ）が備えられており、このネジ座に、上面板１２ａに設けられる孔１２ｂに挿入された吊り金具８０と、軸ばね下７６と、軸ばね座下６８とを貫通して配設されるボルト１００が締結される。   On the other hand, a shaft box upper end surface 64b that forms a horizontal plane is provided at the upper end portion of the axle box 64 that rotatably holds the wheel shaft, and is cylindrical in a mode that extends vertically upward from the center portion of the axle box upper end surface 64b. An axle box upper protrusion 64a is provided. A screw seat (female screw) is provided at the upper end portion of the shaft box upper projection 64a. A suspension fitting 80 inserted into a hole 12b provided in the upper surface plate 12a, a shaft spring lower 76, and the screw seat. The bolt 100 disposed through the shaft spring seat 68 is fastened.

軸箱上端面６４ｂの上面に、釣鐘状の軸ばね座下６８が備えられる。軸ばね座下６８の下端部には軸箱上端面６４ｂに当接する鍔６８ａが備えられるとともに、鍔６８ａの中央部から軸ばね座下６８の中心線に沿って円筒状空間６８ｂが設けられている。円筒状空間６８ｂの内径は軸箱上突部６４ａの外径より若干大きく設定されている。   A bell-shaped shaft spring seat 68 is provided on the upper surface of the shaft box upper end surface 64b. The lower end portion of the shaft spring seat 68 is provided with a flange 68a that contacts the shaft box upper end surface 64b, and a cylindrical space 68b is provided from the center of the flange 68a along the center line of the shaft spring seat 68. Yes. The inner diameter of the cylindrical space 68b is set slightly larger than the outer diameter of the axle box upper protrusion 64a.

軸箱６４の上方に軸ばね座下６８を載置した場合、軸箱上端面６４ｂに鍔６８ａの下面が当接されるとともに、円筒状空間６８ｂに軸箱上突部６４ａが嵌入される。   When the shaft spring seat 68 is placed above the shaft box 64, the lower surface of the flange 68a is brought into contact with the shaft box upper end surface 64b, and the shaft box upper protrusion 64a is fitted into the cylindrical space 68b.

軸箱上端面６４ｂと鍔６８ａの下面との間に、輪重比を所定の範囲に維持するために高さ調整板９０を挿入する際に、円筒状空間６８ｂに軸箱上突部６４ａが嵌入されているので軸箱上突部６４ａは、円筒状空間６８ｂに案内される態様で軸箱上端面６４ｂと鍔６８ａの下面との平行度を維持したまま、上下方向に移動することができる。この構成によって、軸箱上端面６４ｂと鍔６８ａの下面との間に、輪重比を所定の範囲内に収めるために高さ調整板９０を挿入する場合であっても、軸箱６４と軸ばね座下６８とががたつくことがない。   When the height adjusting plate 90 is inserted between the upper end surface 64b of the axle box and the lower surface of the flange 68a in order to maintain the wheel load ratio within a predetermined range, the upper projection 64a of the axle box is formed in the cylindrical space 68b. Since the shaft box upper protrusion 64a is inserted, it can be moved in the vertical direction while maintaining the parallelism between the shaft box upper end surface 64b and the lower surface of the flange 68a in a manner guided by the cylindrical space 68b. . With this configuration, even when the height adjustment plate 90 is inserted between the upper end surface 64b of the axle box and the lower surface of the flange 68a in order to keep the wheel load ratio within a predetermined range, the axle box 64 and the axle The under-spring 68 does not rattle.

図４は、落下防止機構が機能した時の状態を示す断面図である。台車１を移動する場合には、台車枠５にワイヤーを掛けてクレーンで吊り上げてトラックなどに積載する。台車枠５をなす側梁１０がワイヤーによって持ち上げられると、軸箱６４は重量の大きい輪軸を保持しているため軸箱６４と側梁１０との距離が拡大して、隙間Ｇ（図３参照）が小さくなり、最終的に鍔８０ａが上面部１２ａに当接する。鍔８０ａの外径は孔１２ｂの内径より大きく設定されているので、吊り金具８０は孔１２ｂをすり抜けることがないので、吊り金具８０に係止されるボルト１００によって接続される軸箱６４は台枠５から抜け落ちることはない。   FIG. 4 is a cross-sectional view showing a state when the fall prevention mechanism functions. When the carriage 1 is moved, a wire is hung on the carriage frame 5 and lifted by a crane and loaded on a truck or the like. When the side beam 10 forming the carriage frame 5 is lifted by the wire, the axle box 64 holds a heavy axle, so that the distance between the axle box 64 and the side beam 10 is increased and the gap G (see FIG. 3). ) Is reduced, and the flange 80a finally comes into contact with the upper surface portion 12a. Since the outer diameter of the flange 80a is set to be larger than the inner diameter of the hole 12b, the suspension fitting 80 does not pass through the hole 12b, so that the axle box 64 connected by the bolt 100 locked to the suspension fitting 80 is a base. It will not fall out of the frame 5.

以上の構成によって、以下に記す効果を奏する鉄道車両用台車を提供することができる。   With the above-described configuration, a railway vehicle carriage that exhibits the following effects can be provided.

台車１を運搬する際にクレーン等で台車枠５を吊り上げたる場合であっても、台車枠５から軸箱６４が抜け落ちることを抑制することができる。   Even when the carriage frame 5 is lifted by a crane or the like when the carriage 1 is transported, the axle box 64 can be prevented from falling off the carriage frame 5.

さらに、軸ばね座下６８を持ちあげることによって、軸ばね座下６８と軸箱６４との間に高さ調整板９０を容易に挿入することができるとともに、高さ調整板９０を挿入することに起因するがたつきの発生を抑制できる。   Furthermore, by lifting the shaft spring seat 68, the height adjustment plate 90 can be easily inserted between the shaft spring seat 68 and the shaft box 64, and the height adjustment plate 90 can be inserted. It is possible to suppress the occurrence of rattling caused by.

さらに、側梁端部１２の上面部１２ａの下面に凹部１２ｃを備えているので、作業性の良くない状況下であっても軸ばね７０の位置を容易に決めることできる。   Furthermore, since the concave portion 12c is provided on the lower surface of the upper surface portion 12a of the side beam end portion 12, the position of the shaft spring 70 can be easily determined even under conditions where workability is not good.

さらに、軸箱６４の前後左右方向の変位に伴い軸ばね７０に前後、左右方向に大きな荷重が作用する場合であっても、凹部１２ｃの垂直面が上面部１２ａと軸ばね上７２との間に生じるせん断荷重を負担するので、軸ばね７０を側梁端部１２に固定するボルト１０２が受け持つせん断荷重を小さくできる上に、軸ばね７０を構成する軸ばね上７２の厚みを小さくすることができるので、軸ばね７０の軽量化を促進することができる。   Further, even when a large load is applied to the shaft spring 70 in the front-rear and left-right directions due to the displacement of the shaft box 64 in the front-rear and left-right directions, the vertical surface of the recess 12 c is between the upper surface portion 12 a and the shaft spring upper 72. Therefore, it is possible to reduce the shear load of the bolt 102 that fixes the shaft spring 70 to the side beam end 12 and to reduce the thickness of the shaft spring upper 72 constituting the shaft spring 70. As a result, weight reduction of the shaft spring 70 can be promoted.

１…台車 １０…側梁
１０ｂ…側梁リンク受け
１２…側梁端部 １２ａ…上面部
１２ｂ…孔 １２ｃ…凹部
５０…空気ばね受台 ５６…ブレーキ装置
６２…軸箱前後リンク ６４…軸箱
６４ａ…軸箱上突部 ６４ｂ…軸箱上端面
６４ｃ…軸箱側突部
６８…軸ばね座下 ６８ａ…鍔
６８ｂ…円筒状空間 ７０…軸ばね
７２…軸ばね上 ７４…防振ゴム
７６…軸ばね下 ７６ａ…水平部
８０…吊り金具 ８０ａ…鍔
９０…高さ調整板 １００，１０２…ボルト
２００…ヨーダンパ ２１０…空気ばね
２３０…車軸 ２４０…車輪DESCRIPTION OF SYMBOLS 1 ... Carriage 10 ... Side beam 10b ... Side beam link receptacle 12 ... Side beam end part 12a ... Upper surface part 12b ... Hole 12c ... Recess 50 ... Air spring receptacle 56 ... Brake device 62 ... Shaft box front-rear link 64 ... Shaft box 64a ... shaft box upper protrusion 64b ... shaft box upper end face 64c ... shaft box side protrusion 68 ... shaft spring seat 68a ... 鍔 68b ... cylindrical space 70 ... shaft spring 72 ... shaft spring top 74 ... vibration isolator 76 ... shaft Unsprung 76a ... Horizontal portion 80 ... Hanging bracket 80a ... Screw 90 ... Height adjustment plate 100,102 ... Bolt 200 ... Yaw damper 210 ... Air spring 230 ... Axle 240 ... Wheel

Claims (5)

台車枠を構成する側梁と、
輪軸を回動可能に保持する軸箱と、
前記側梁と前記軸箱との間に配設される軸ばねと、を有す鉄道車両用台車であって、
前記軸ばねは、
円筒状の軸ばね上と、
釣鐘状の軸ばね下と、
前記軸ばね上と前記軸ばね下との間に配設される弾性体と、から構成されており、
前記軸ばねを貫通する態様で前記側梁と前記軸箱とを接続する接続部材を備える鉄道車両用台車において、
前記軸ばね下と前記軸箱との間に配設される軸ばね座下を備えており、
前記軸ばね座下の下面の周縁部に備えられる鍔と、
前記軸箱の上部に備えられるとともに前記鍔が当接される平面状の軸箱上端面と、
前記鍔と前記軸箱上端面との間に備えられる輪重比を調整する高さ調整板と、を備えたこと
を特徴とする鉄道車両用台車。Side beams constituting the bogie frame;
An axle box that rotatably holds the axle,
An axle spring disposed between the side beam and the axle box,
The shaft spring is
On a cylindrical shaft spring;
A bell-shaped shaft spring,
An elastic body disposed between the shaft spring and the shaft spring; and
In a railcar bogie comprising a connecting member that connects the side beam and the axle box in a manner that penetrates the axle spring,
A shaft spring seat under the shaft spring and the shaft box is provided,
A collar provided on the peripheral edge of the lower surface of the shaft spring seat;
A flat shaft box upper end surface that is provided on the shaft box and is in contact with the flange,
A railcar bogie comprising a height adjusting plate for adjusting a wheel load ratio provided between the rod and the upper end surface of the axle box. 請求項１に記載された鉄道車両用台車において、
前記接続部材が貫通するとともに前記軸ばね座下の下面中央部に開放する態様で備えられる円筒状空間と、
前記円筒状空間に嵌入されるとともに、前記軸箱上端面の中央部から上方に突出する円筒状の軸箱上突部と、を備えたこと
を特徴とする鉄道車両用台車。In the railcar bogie described in claim 1,
A cylindrical space provided in such a manner that the connecting member penetrates and opens to a lower surface central portion under the shaft spring seat;
A railcar bogie characterized by comprising: a cylindrical shaft box upper protrusion that is inserted into the cylindrical space and protrudes upward from a central portion of the upper end surface of the axle box. 請求項１または請求項２に記載された鉄道車両用台車において、
前記側梁の長手方向の端部に備えられるとともに下方に開放する側梁端部と、
前記側梁端部を構成する上面部と、
前記上面部の下面に備えられる凹部と、を有しており、
前記軸ばね上の上端部が前記凹部に嵌入されるとともに、前記軸ばね上が前記上面部に固定さていること
を特徴とする鉄道車両用台車。In the railcar bogie described in claim 1 or claim 2,
A side beam end portion provided at an end portion in a longitudinal direction of the side beam and opened downward;
An upper surface portion constituting the side beam end portion;
A recess provided on the lower surface of the upper surface portion,
An upper end of the shaft spring is fitted into the recess, and the upper portion of the shaft spring is fixed to the upper surface portion. 請求項３に記載された鉄道車両用台車において、
前記接続部材が貫通するとともに前記軸箱を懸垂する吊り金具と、
前記上面板に備えられるとともに前記吊り金具が挿入される孔と、
を有しており、
前記吊り金具は、
円筒部と、
前記円筒部の上端部から延びる鍔と、を有しており
前記孔に前記円筒部が嵌入されること
を特徴とする鉄道車両用台車。In the railcar bogie described in claim 3,
A suspension fitting through which the connecting member penetrates and suspends the axle box,
A hole provided in the top plate and into which the suspension fitting is inserted;
Have
The hanging bracket is
A cylindrical portion;
A railcar bogie characterized by having a flange extending from an upper end portion of the cylindrical portion, wherein the cylindrical portion is fitted into the hole. 請求項４に記載される鉄道車両用台車において、
前記軸ばね下の上端部に水平部がそなえられており、
前記水平部に前記円筒部の下端部が載置されること
を特徴とする鉄道車両用台車。In the railcar bogie described in claim 4,
A horizontal portion is provided at the upper end of the shaft spring,
A bogie for a railway vehicle, wherein a lower end portion of the cylindrical portion is placed on the horizontal portion.
JP2014529232A 2012-08-10 2012-08-10 Railcar bogie Active JP5969033B2 (en)

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GB2524138B (en) 2019-12-04
DE112012006799B4 (en) 2018-05-03
JP5969033B2 (en) 2016-08-10
DE112012006799T5 (en) 2015-05-07
WO2014024315A1 (en) 2014-02-13

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