JP2005212711A - Driving mechanism of low-floor type railway vehicle - Google Patents
Driving mechanism of low-floor type railway vehicle Download PDFInfo
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本発明は低床式鉄道車両の駆動機構に関し、特に、車輪のタイヤ交換、歯車装置の点検等のメンテナンスを容易にした低床式鉄道車両の駆動機構に関するものである。 The present invention relates to a drive mechanism for a low-floor railway vehicle, and more particularly to a drive mechanism for a low-floor railway vehicle that facilitates maintenance such as tire replacement of wheels and inspection of gear devices.
従来から、子供やお年寄り等の乗降を容易にするため、車両の床を低くくした低床式鉄道車両が種々提案されている。
通常、鉄道車両の床下には、主電動機等の大型の機器類が配置され、これらが車両の床面を低くする際の障害となっている。そこで、台車の外側の両側に回転軸が車両進行方向に向くように配置された電動機を設け、該電動機軸と、車軸が車両進行方向に直交するように配置された車軸とを歯車装置を介して連結した低床式鉄道車両が提案されている（特許文献１、特許文献２等参照）。
上記構造とすれば、車両の床下には、電動機等の大型の機器類が配置されず、床面を低くすることができる。
Conventionally, various low-floor railway vehicles have been proposed in which the floor of the vehicle is lowered in order to facilitate getting on and off of children, the elderly, and the like.
Usually, large equipment such as a main electric motor is arranged under the floor of a railway vehicle, which becomes an obstacle when the floor surface of the vehicle is lowered. Therefore, an electric motor is provided on both outer sides of the carriage so that the rotating shaft faces the vehicle traveling direction, and the electric motor shaft and the axle disposed so that the axle is orthogonal to the vehicle traveling direction are connected via a gear device. A low-floor railway vehicle connected in this manner has been proposed (see Patent Document 1, Patent Document 2, etc.).
If it is the said structure, large equipments, such as an electric motor, will not be arrange | positioned under the floor of a vehicle, and a floor surface can be made low.
図４は、上記低床式鉄道車両における電動機、歯車装置、車輪の配置図である。
同図において、電動機１の回転軸は車両進行方向と平行となるように配置され、該電動機１の回転軸は、カップリング装置３を介して車両進行方向の前後に設けられた２つの歯車装置２に連結される。
歯車装置２には、車輪４が固定された車軸５が連結され、歯車装置２は電動機の回転軸の軸方向を９０度方向変換し、歯車装置２に対して車両中心側に設けられた車軸５に電動機１の回転を伝達する。
上記車軸５は、軸受装置６を介して台車枠７に取り付けられ、上記電動機１、歯車装置２、カップリング装置３、車輪４、車軸５からなるユニットは、台車枠７の両側に設けられ、電動機１により車両進行方向の前後の車輪がそれぞれ駆動される。
FIG. 4 is a layout diagram of an electric motor, a gear device, and wheels in the low-floor railway vehicle.
In the figure, the rotating shaft of the electric motor 1 is arranged so as to be parallel to the vehicle traveling direction, and the rotating shaft of the electric motor 1 is provided with two gear devices provided before and after the vehicle traveling direction via the coupling device 3. 2 connected.
The gear device 2 is connected to an axle 5 to which a wheel 4 is fixed. The gear device 2 changes the axial direction of the rotating shaft of the motor by 90 degrees, and an axle provided on the vehicle center side with respect to the gear device 2. The rotation of the electric motor 1 is transmitted to 5.
The axle 5 is attached to a carriage frame 7 via a bearing device 6, and the unit including the electric motor 1, the gear device 2, the coupling device 3, the wheel 4, and the axle 5 is provided on both sides of the carriage frame 7. The electric motor 1 drives the front and rear wheels in the vehicle traveling direction.
図５は、上記駆動機構を有する低床式鉄道車両の構成例を示す図であり、図５（ａ）は側面から見た図、図５（ｂ）は、同図（ａ）のＡ−Ａ断面図である。
図５（ｂ）に示すように、台車枠７が緩衝装置９を介して車体８の下部に取りつけられている。台車枠７の外側に車輪４と歯車装置２が配置され、該歯車装置２に図１に示すように、電動機１の回転軸が連結されている。
図４、図５に示すように、車輪４、歯車装置２、電動機１等が台車枠７の両側に配置されているので、車体８の床面Ａを車軸５の高さとほぼ等しくすることができ、低床式車両を実現することができる。なお、上記電動機１、歯車装置２、車輪３等が設けられた部分は、図５（ｂ）に示すように段差部Ｂができるが、この部分は座席等として利用することができる。
As shown in FIG. 5 (b), the carriage frame 7 is attached to the lower part of the vehicle body 8 via a shock absorber 9. A wheel 4 and a gear device 2 are arranged outside the carriage frame 7, and a rotating shaft of the electric motor 1 is connected to the gear device 2 as shown in FIG. 1.
As shown in FIGS. 4 and 5, since the wheel 4, the gear device 2, the electric motor 1, and the like are arranged on both sides of the carriage frame 7, the floor surface A of the vehicle body 8 can be made substantially equal to the height of the axle 5. And a low floor vehicle can be realized. In addition, although the part provided with the said electric motor 1, the gear apparatus 2, the wheel 3, etc. has the level | step-difference part B as shown in FIG.5 (b), this part can be utilized as a seat.
上記特許文献１，２などに記載される左右の車輪が異なった電動機で駆動されるの構造の低床式鉄道車両は、比較的高速で走行する際、蛇行する傾向にあり、車輪のタイヤの磨耗量が大きく、また、不規則に磨耗するといった問題があった。
このため、左右輪を同一の電動機で駆動する従来型の鉄道車両と比べると、タイヤ交換の頻度を多くする必要がある。
しかし、上記構造の車両は、車輪４の外側に電動機１に連結された歯車装置２が取り付けられ、また、車輪４のすぐ内側には台車枠７があり、上記歯車装置２が邪魔になって、このままでは車輪４のタイヤを交換することはできない。
The low-floor railway vehicle having a structure in which the left and right wheels described in Patent Documents 1 and 2 are driven by different electric motors tend to meander when traveling at a relatively high speed. There was a problem that the amount of wear was large and the wear was irregular.
For this reason, it is necessary to increase the frequency of tire replacement compared to a conventional railway vehicle in which the left and right wheels are driven by the same electric motor.
However, in the vehicle having the above structure, the gear device 2 connected to the electric motor 1 is attached to the outside of the wheel 4, and the bogie frame 7 is just inside the wheel 4, and the gear device 2 becomes an obstacle. In this state, the tire of the wheel 4 cannot be replaced.
このため、従来、車輪４のタイヤ交換時には、車体８を台車枠７と共にクレーン等で吊り上げ、台車枠７から、電動機１、歯車装置２、車輪４等から構成されるユニット毎取り外し、歯車装置２の軸受の点検交換等を行ったり、歯車装置２が設けられていない側から車輪４のタイヤを外して交換していた。
しかし、上記車輪４と歯車装置２と電動機１等から構成されるユニットは大型で重量があり、また、車軸４の軸受装置６は台車枠７に取り付けられ、台車枠７から軸受装置６を取り外さねば上記ユニットを取り外すことはできず、さらに、電動機１も台車枠７に固定されているため、上記ユニットを簡単に取り外すことはできない。
For this reason, conventionally, when replacing the tires of the wheels 4, the vehicle body 8 is lifted together with the carriage frame 7 by a crane or the like, and each unit composed of the electric motor 1, the gear device 2, the wheels 4, and the like is removed from the carriage frame 7. The bearings 4 were inspected and replaced, or the tires of the wheels 4 were removed and replaced from the side where the gear unit 2 was not provided.
However, the unit composed of the wheel 4, the gear device 2, the electric motor 1 and the like is large and heavy, and the bearing device 6 of the axle 4 is attached to the bogie frame 7, and the bearing device 6 is removed from the bogie frame 7. The unit cannot be removed, and since the electric motor 1 is also fixed to the carriage frame 7, the unit cannot be removed easily.
また、電動機１と歯車装置２の連結を、カップリング装置３のところで切り離し、さらに台車枠７から車軸５の軸受装置６を取り外し、上記車輪４と車軸５、上記軸受装置６と歯車装置２とを一体で取り外し、歯車装置２が設けられていない側から車輪４のタイヤを外し、交換することも考えられるが、この作業も、台車枠７から上記軸受装置６を取り外す必要があるため、多くの労力を要する。
なお、車軸５と車輪４は、通常、嵌めあいにより強固に固定されており、車輪４だけを車軸５から容易に取り外すことはできない。なお、上記車輪４と車軸５が一体となったものを輪軸という。
このため、従来においては、車輪のタイヤ交換作業には多くの労力を要していた。また、歯車装置の軸受けなどを点検する際も、歯車装置を単独で取り外すことはできないので、上記のようにユニット毎等に取り外す必要があり、同様に多くの労力を要していた。
本発明は、上記従来技術の問題点を解決するためになされたものであって、輪軸から歯車装置を容易に取り外せるようにすることにより、上記輪軸を台車から取り外すことなく、車輪のタイヤ交換作業、歯車装置の点検を容易に行うことができるようにした低床式鉄道車両の駆動機構に関するものである。
Further, the coupling between the electric motor 1 and the gear device 2 is disconnected at the coupling device 3, and the bearing device 6 of the axle 5 is removed from the carriage frame 7, and the wheel 4 and the axle 5, the bearing device 6 and the gear device 2 are removed. It is possible to remove the tire of the wheel 4 from the side where the gear device 2 is not provided and replace it, but this work also requires the removal of the bearing device 6 from the carriage frame 7, Requires labor.
The axle 5 and the wheel 4 are normally firmly fixed by fitting, and only the wheel 4 cannot be easily removed from the axle 5. In addition, what integrated the said wheel 4 and the axle 5 is called an axle.
For this reason, conventionally, a large amount of labor has been required for wheel tire replacement work. Also, when inspecting the bearings of the gear device and the like, the gear device cannot be removed alone, so it is necessary to remove it for each unit as described above, and much labor is required as well.
The present invention has been made to solve the above-mentioned problems of the prior art, and by making it possible to easily remove the gear device from the wheel shaft, the wheel tire can be replaced without removing the wheel shaft from the carriage. The present invention relates to a drive mechanism for a low-floor railway vehicle that enables easy inspection of a gear device.
本発明においては、以下のように構成し輪軸から歯車装置を容易に取り外し可能とすることにより、台車枠から輪軸を取り外すことなく、車輪のタイヤ交換を可能とする。
（１）台車の側面に、回転軸が車両進行方向に配置された電動機が取り付けられ、該電動機の回転軸に、回転軸の軸方向を９０度方向変換する歯車装置が連結され、該歯車装置の車両中心側に該歯車装置の回転軸に車軸が連結された車輪が配置され、該車輪の車軸が上記歯車装置を介して上記電動機の回転軸に連結された低床式鉄道車両の駆動機構において、歯車装置の回転軸に対して車軸がその軸方向にスライド可能で、かつ、車軸と歯車装置の回転軸が一体で回転するように回転止め機能を備えた連結機構を介して、上記車軸に歯車装置を取り付ける。
（２）上記車輪と歯車装置の回転軸を連結する連結機構をスプラインもしくはセレーションとする。
なお、上記（１）（２）の構成において、車体の左右に配置された車輪を車軸で連結し、該車軸を一台の電動機で駆動するようにしてもよい。
In the present invention, the gear unit can be easily detached from the wheel shaft with the following configuration, so that the wheels can be replaced without removing the wheel shaft from the carriage frame.
(1) An electric motor having a rotating shaft arranged in the vehicle traveling direction is attached to a side surface of the carriage, and a gear device that changes the axial direction of the rotating shaft by 90 degrees is connected to the rotating shaft of the electric motor. A drive mechanism for a low-floor railway vehicle, in which a wheel having an axle connected to a rotation shaft of the gear device is disposed on the vehicle center side, and the axle of the wheel is connected to the rotation shaft of the electric motor via the gear device. In the above, the axle is slidable in the axial direction with respect to the rotation shaft of the gear device, and the axle is connected via a coupling mechanism having a rotation stop function so that the axle and the rotation shaft of the gear device rotate together. Attach the gear unit to.
(2) The connecting mechanism that connects the wheel and the rotating shaft of the gear unit is a spline or serration.
In the configurations of (1) and (2) above, the wheels arranged on the left and right of the vehicle body may be connected by an axle, and the axle may be driven by a single electric motor.
以上説明したように、本発明においては、台車枠から輪軸を取り外すことなく、歯車装置のみを着脱できるようにしたので、車輪のタイヤ交換、歯車装置の部品交換などを容易に行うことができる。
また、上記歯車装置にスリップリング、速度計発電機の歯車等を取り付けておけば、これらら点検、交換も容易に行うことができる。
As described above, in the present invention, since only the gear device can be attached and detached without removing the wheel shaft from the carriage frame, it is possible to easily replace the tires of the wheels, the parts of the gear device, and the like.
Further, if a slip ring, a gear of a speedometer generator, or the like is attached to the gear device, these can be easily inspected and replaced.
以下、本発明の実施例について説明する。本発明が適用される低床式鉄道車両の駆動機構は、前記図４、図５に示したように、電動機１の回転軸は車両進行方向と平行となるように配置され、該電動機１の回転軸は、カップリング装置３を介して車両進行方向の前後に設けられた２つの歯車装置２に連結されている。歯車装置２には、車輪４が固定された車軸５が連結され、歯車装置２は電動機の回転軸の軸方向を９０度方向変換し、歯車装置２に対して車両中心側に設けられた車軸５に電動機１の回転を伝達する。上記車軸５は、軸受装置６を介して台車枠７に取り付けられ、上記電動機１、歯車装置２、カップリング装置３、車輪４からなるユニットは、台車枠７の両側に設けられる。
図１は、本発明の実施例の駆動機構の詳細構成を示しており、図１は上記歯車装置２と車軸２との連結部分の断面構成を示している。
図１において、電動機１の回転軸１ａはカップリング装置３を介して、歯車箱２ｃに取り付けられた回転軸３ａに連結されている。回転軸３ａは、軸受２ｅにより回転可能に支持される。回転軸３ａには小歯車２ｄが設けられ、この小歯車２ｄは大歯車２ａと噛合っている。この大歯車２ａは回転部材２ｂに取り付けられ、この回転部材２ｂは、歯車箱２ｃに設けられた軸受２ｆにより回転可能に支持されている。上記回転部材２ｂは中空状であり、内側に雌スプライン歯が形成されている。
Examples of the present invention will be described below. As shown in FIGS. 4 and 5, the drive mechanism of the low-floor railway vehicle to which the present invention is applied is arranged such that the rotating shaft of the electric motor 1 is parallel to the vehicle traveling direction. The rotating shaft is connected to two gear devices 2 provided in the front and rear of the vehicle traveling direction via a coupling device 3. The gear device 2 is connected to an axle 5 to which a wheel 4 is fixed. The gear device 2 changes the axial direction of the rotating shaft of the motor by 90 degrees, and an axle provided on the vehicle center side with respect to the gear device 2. The rotation of the electric motor 1 is transmitted to 5. The axle 5 is attached to the bogie frame 7 via a bearing device 6, and the units including the electric motor 1, the gear device 2, the coupling device 3, and the wheels 4 are provided on both sides of the bogie frame 7.
FIG. 1 shows a detailed configuration of a drive mechanism according to an embodiment of the present invention, and FIG. 1 shows a cross-sectional configuration of a connecting portion between the gear device 2 and the axle 2.
In FIG. 1, the rotating shaft 1 a of the electric motor 1 is connected to the rotating shaft 3 a attached to the gear box 2 c via the coupling device 3. The rotating shaft 3a is rotatably supported by the bearing 2e. A small gear 2d is provided on the rotating shaft 3a, and the small gear 2d is engaged with the large gear 2a. The large gear 2a is attached to a rotating member 2b, and the rotating member 2b is rotatably supported by a bearing 2f provided in the gear box 2c. The rotating member 2b is hollow, and female spline teeth are formed inside.
一方、車軸５は、台車枠（図１では図示せず）に取り付けられた車輪の軸受装置６により台車枠に対して回転可能に取り付けられ、車軸５には、輪芯４ｂとタイヤ４ａからなる車輪４が取り付けられている。上記タイヤ４ａは、輪芯４ｂから取り外すことが可能である。
また車軸５の先端部５ａには雄スプライン歯が形成され、このスプライン歯は、前記大歯車２ａが取り付けられた回転部材２ｂに形成されたスプライン歯と係合する。すなわち、車軸５は、上記大歯車２ａと一体で回転するが、上記車軸５の先端部５ａに対して、大歯車２ａが取り付けられた回転部材２ｂは軸方向に移動可能である。
また、上記車軸５の先端部５ａの端部には、例えばスリップリング１０が軸端ナット１１により取り付けられている。車軸５の先端部５ａの端部を軸端ナット１１で止めることにより、車軸５の先端部５ａに対して回転部材２ｂが軸方向に移動するのを防ぐことができる。なお、スリップリング１０に換え、速度計発電機用歯車等を取り付けてもよい。
On the other hand, the axle 5 is rotatably attached to the carriage frame by a wheel bearing device 6 attached to a carriage frame (not shown in FIG. 1). The axle 5 includes a ring core 4b and a tire 4a. Wheels 4 are attached. The tire 4a can be removed from the ring core 4b.
Further, male spline teeth are formed at the front end portion 5a of the axle 5, and these spline teeth engage with spline teeth formed on the rotating member 2b to which the large gear 2a is attached. That is, the axle 5 rotates integrally with the large gear 2a, but the rotating member 2b to which the large gear 2a is attached is movable in the axial direction with respect to the tip 5a of the axle 5.
Further, for example, a slip ring 10 is attached to an end portion of the front end portion 5 a of the axle 5 by a shaft end nut 11. By stopping the end portion of the front end portion 5 a of the axle 5 with the shaft end nut 11, it is possible to prevent the rotation member 2 b from moving in the axial direction with respect to the front end portion 5 a of the axle 5. Instead of the slip ring 10, a speedometer generator gear or the like may be attached.
図２は、上記歯車装置２を図１のＢ方向から見た図である。同図に示すように、歯車装置２は吊りリンク１２を介して、台車枠７に取り付けられている。
前記歯車箱２ｃは、前記したように上記軸受２ｆ、スプラインを介して車軸５に支持されており、車軸５が回転すると、歯車装置２に軸周りの回転力が加わる。上記のように吊りリンク１２を設けることで、上記歯車装置２が回転しないようにすることができ、カップリング装置３などに回転力が加わるのを防止することができる。
FIG. 2 is a view of the gear device 2 as viewed from the direction B of FIG. As shown in the figure, the gear device 2 is attached to the carriage frame 7 via a suspension link 12.
As described above, the gear box 2c is supported by the axle 5 via the bearing 2f and the spline. When the axle 5 rotates, a rotational force around the axis is applied to the gear device 2. By providing the suspension link 12 as described above, it is possible to prevent the gear device 2 from rotating and to prevent a rotational force from being applied to the coupling device 3 and the like.
図１において、電動機１が回転すると、カップリング装置３を介して歯車装置２の小歯車２ｄが回転し、大歯車２ａが回転する。この回転はスプラインを介して車軸５に伝達され、車輪４が回転する。
また、スリップリング１０は、回転部材２ｂに取り付けられているので、車輪４ともに回転する。スリップリング１０は接地装置に接続され、スリップリング１０を介して接地装置に電流を流すことができる。
また、上記スリップリングに換えて歯車を取り付ければ、この部分で速度検出を行うことができる。
In FIG. 1, when the electric motor 1 rotates, the small gear 2d of the gear device 2 rotates through the coupling device 3, and the large gear 2a rotates. This rotation is transmitted to the axle 5 via the spline, and the wheel 4 rotates.
Further, since the slip ring 10 is attached to the rotating member 2b, the wheel 4 rotates together. The slip ring 10 is connected to a grounding device, and an electric current can be passed to the grounding device via the slip ring 10.
If a gear is attached instead of the slip ring, speed detection can be performed at this portion.
次に図１に示す駆動機構において、車輪のタイヤ交換あるいは、歯車装置の軸受などを点検する場合について説明する。
まず、車両全体をクレーン等で吊り上げ、前記吊りリンク１２を取り外し、軸端ナット１１を取り外す。また、カップリング装置３のところで、電動機１と歯車装置２の結合を切り離す。
前記したように、車軸５と、歯車装置２の大歯車２ａが取り付けられた回転部材２ｂは、スプライン結合であり、回転部材２ｂは車軸５に対して軸方向に移動可能に構成されているので、上記のように、吊りリンク１２、軸端ナット１１を取り外し、電動機１と歯車装置２の結合を切り離すことで、歯車装置２を車軸５から取り外すことができる。
上記のように歯車装置２を取り外せば、車輪４の外側には邪魔なものはなくなるので、この状態で車輪４のタイヤ４ａを外してタイヤ交換を行う。また、歯車装置２も車体から取り外すことができるので、歯車装置２の軸受などの点検・交換を行うことができる。
車輪４のタイヤ交換、または歯車装置２の点検が終わったら、上記歯車装置２を取り付け、軸端ナット１１、吊りリンク１２を取り付け、クレーンで吊り上げていた車体を線路上に降ろす。
Next, in the drive mechanism shown in FIG. 1, a case where the tires of the wheels are replaced or the bearings of the gear device are inspected will be described.
First, the entire vehicle is lifted by a crane or the like, the suspension link 12 is removed, and the shaft end nut 11 is removed. Further, at the coupling device 3, the coupling between the electric motor 1 and the gear device 2 is disconnected.
As described above, the rotating member 2b to which the axle 5 and the large gear 2a of the gear device 2 are attached is splined, and the rotating member 2b is configured to be movable in the axial direction with respect to the axle 5. As described above, the gear device 2 can be detached from the axle 5 by removing the suspension link 12 and the shaft end nut 11 and disconnecting the coupling between the electric motor 1 and the gear device 2.
If the gear device 2 is removed as described above, there is no obstacle on the outside of the wheel 4, so the tire 4a of the wheel 4 is removed in this state and the tire is replaced. Moreover, since the gear apparatus 2 can also be removed from a vehicle body, the inspection and replacement | exchange of the bearing etc. of the gear apparatus 2 can be performed.
When the tire replacement of the wheel 4 or the inspection of the gear device 2 is completed, the gear device 2 is attached, the shaft end nut 11 and the suspension link 12 are attached, and the vehicle body that has been lifted by the crane is lowered onto the track.
従来においては、歯車装置２が直接車軸５に取り付けられていたため、上記のように歯車装置のみを取り外すことができず、前記したように、歯車装置とともに、車軸と車輪を台車枠から取り外す必要があった。本実施例においては、上記のように車軸５と歯車装置２の回転部材２ｂをスプライン結合としたので、歯車装置２を車軸５から取り外すことができる。このため、歯車装置２のみを取り外して、車輪のタイヤ交換、歯車装置の点検が可能である。このため、タイヤ交換などの作業が従来に比べて、きわめて容易になる。また、歯車装置２にスリップリング、速度計用歯車などを設けた場合、歯車装置とともに、これらを取り外すことができるので、これらの点検作業も容易となる。
なお、上記実施例では、車軸と大歯車の連結機構として、スプラインを設ける場合について説明したが、この連結機構はセレーションであってもよく、要するに、歯車装置の回転軸に対して車軸がその軸方向にスライド可能で、かつ、車軸と歯車装置の回転軸が一体で回転するように回転止め機能を備えた連結機構であれば、その他の機構であってもよい。また、上記では、軸端ナット１１により、車軸５の先端部５ａの端部を止める様に構成したが、上記軸端ナット１１は必ずしも必要ではない。すなわち、歯車装置２は前記したように吊りリンク１２で台車枠７に固定されているので、上記軸端ナット１１を設けなくても、歯車装置２が車軸に対して移動したり、走行中に抜け落ちることはない。
Conventionally, since the gear device 2 is directly attached to the axle 5, it is not possible to remove only the gear device as described above. As described above, it is necessary to remove the axle and wheels from the carriage frame together with the gear device. there were. In the present embodiment, since the axle 5 and the rotating member 2b of the gear device 2 are splined as described above, the gear device 2 can be detached from the axle 5. For this reason, it is possible to remove only the gear device 2 and replace the tires of the wheels and inspect the gear device. For this reason, work such as tire replacement becomes extremely easy as compared with the conventional case. In addition, when the gear device 2 is provided with a slip ring, a speedometer gear, and the like, these can be removed together with the gear device, so that the inspection work can be facilitated.
In the above embodiment, the spline is provided as a connecting mechanism for the axle and the large gear. However, this connecting mechanism may be a serration. In short, the axle is connected to the rotating shaft of the gear device. Other mechanisms may be used as long as they are slidable in the direction and have a rotation stop function so that the axle and the rotation shaft of the gear device rotate together. In the above description, the shaft end nut 11 is used to stop the end of the front end portion 5a of the axle 5. However, the shaft end nut 11 is not necessarily required. That is, since the gear device 2 is fixed to the carriage frame 7 by the suspension link 12 as described above, the gear device 2 moves with respect to the axle or without traveling without the shaft end nut 11. It will not fall out.
図３は本発明の変形例を示す図である。
上記実施例では、前記図４に示したように、１台の電動機で車両前後方向に設けられた２個の車輪を駆動するように構成したが、本実施例では、車両の両側の車輪を車軸で連結し、１台の電動機で、車両の両側に設けられた２個の車輪を駆動するように構成したものである。
図３において、電動機１の回転軸は車両進行方向と平行となるように配置され、該電動機１の回転軸は、カップリング装置３を介して歯車装置２に連結される。
歯車装置２には、車輪４が固定された車軸５が連結され、歯車装置２は電動機の回転軸の軸方向を９０度方向変換し、歯車装置２に対して車両中心側に設けられた車軸５に電動機１の回転を伝達する。
上記車軸５は軸受装置を介して台車枠７に取り付けられ、この車軸５により、台車枠７の両側に設けられた車輪４が連結されている。電動機１は台車枠７の両側に設けられ、それぞれ上記車軸５で連結された２個の車輪を駆動する。
歯車装置２の構成は、前記図１に示したものと同様であり、車軸５と前記大歯車２ａがスプラインで連結されており、前記したように、歯車装置２を車軸５から取り外すことができる。
FIG. 3 is a diagram showing a modification of the present invention.
In the above embodiment, as shown in FIG. 4 above, the two wheels provided in the vehicle front-rear direction are driven by one electric motor. However, in this embodiment, the wheels on both sides of the vehicle are driven. They are connected by an axle and are configured to drive two wheels provided on both sides of the vehicle with one electric motor.
In FIG. 3, the rotating shaft of the electric motor 1 is arranged so as to be parallel to the vehicle traveling direction, and the rotating shaft of the electric motor 1 is connected to the gear device 2 via the coupling device 3.
The gear device 2 is connected to an axle 5 to which a wheel 4 is fixed. The gear device 2 changes the axial direction of the rotating shaft of the motor by 90 degrees, and an axle provided on the vehicle center side with respect to the gear device 2. The rotation of the electric motor 1 is transmitted to 5.
The axle 5 is attached to the carriage frame 7 via a bearing device, and the wheels 4 provided on both sides of the carriage frame 7 are connected by the axle 5. The electric motor 1 is provided on both sides of the bogie frame 7 and drives two wheels connected by the axle 5 respectively.
The configuration of the gear device 2 is the same as that shown in FIG. 1, and the axle 5 and the large gear 2a are connected by a spline. As described above, the gear device 2 can be detached from the axle 5. .
本実施例においては、上記のように車両両側の車輪４を車軸５により連結したので、車軸５が床下に配置され、車両の床面が前記図５に示したものより高くなるが、左右輪を１台の電動機で駆動するので、前記したように比較的高速で走行する際に蛇行するといった問題は生じない。
また、上記したように歯車装置２を車軸５から取り外すことができるので、車輪４のタイヤ交換や歯車装置の軸受等の点検交換を容易に行うことができる。
In this embodiment, since the wheels 4 on both sides of the vehicle are connected by the axle 5 as described above, the axle 5 is arranged under the floor, and the floor of the vehicle is higher than that shown in FIG. Is driven by a single electric motor, there is no problem of meandering when traveling at a relatively high speed as described above.
Moreover, since the gear apparatus 2 can be removed from the axle 5 as described above, the tires of the wheels 4 and the inspection and replacement of the bearings of the gear apparatus can be easily performed.
１ 電動機
１ａ 回転軸
２ 歯車装置
２ａ 大歯車
２ｂ 回転部材
２ｃ 歯車箱
２ｄ 小歯車
２ｅ 軸受
２ｆ 軸受
３ カップリング装置
３ａ 回転軸
４ 車輪
４ａ タイヤ
４ｂ 輪芯
５ 車軸
６ 軸受装置
７ 台車枠
８ 車体
９ 緩衝装置
１０ スリップリング
１１ 軸端ナット
１２ 吊りリンク
DESCRIPTION OF SYMBOLS 1 Electric motor 1a Rotating shaft 2 Gear device 2a Large gear 2b Rotating member 2c Gear box 2d Small gear 2e Bearing 2f Bearing 3 Coupling device 3a Rotating shaft 4 Wheel 4a Tire 4b Ring core 5 Axle 6 Bearing device 7 Bogie frame 8 Body 9 Buffer Device 10 Slip ring 11 Shaft end nut 12 Suspension link
Claims (3)
上記車軸が、歯車装置の回転軸に対して車軸の軸方向にスライド可能であり、かつ、車軸と歯車装置の回転軸が一体で回転するように回転止め機能を備えた連結機構を介して歯車装置の回転軸に取り付けられている
ことを特徴とする低床式鉄道車両の駆動機構。 An electric motor having a rotating shaft arranged in the vehicle traveling direction is attached to a side surface of the carriage, and a gear device that changes the axial direction of the rotating shaft by 90 degrees is connected to the rotating shaft of the electric motor. A drive mechanism for a low-floor railway vehicle in which a wheel having an axle connected to a rotating shaft of the gear device is disposed on the side, and the axle of the wheel is connected to the rotating shaft of the electric motor via the gear device. ,
The above-mentioned axle is slidable in the axial direction of the axle with respect to the rotational axis of the gear device, and the gear is connected via a coupling mechanism having a rotation stopping function so that the axle and the rotational shaft of the gear device rotate together. A drive mechanism for a low-floor railway vehicle, wherein the drive mechanism is attached to a rotating shaft of the apparatus.
ことを特徴とする請求項１の低床式鉄道車両の駆動機構。 2. The drive mechanism for a low-floor railway vehicle according to claim 1, wherein the coupling mechanism for coupling the wheel and the rotating shaft of the gear device is a spline or a serration.
ことを特徴とする請求項１または請求項２の低床式鉄道車両の駆動機構。 The drive mechanism for a low-floor railway vehicle according to claim 1 or 2, wherein the wheels arranged on the left and right of the vehicle body are connected by an axle, and the axle is driven by a single electric motor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004025140A JP3916611B2 (en) | 2004-02-02 | 2004-02-02 | Railway vehicle drive mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004025140A JP3916611B2 (en) | 2004-02-02 | 2004-02-02 | Railway vehicle drive mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2005212711A true JP2005212711A (en) | 2005-08-11 |
| JP3916611B2 JP3916611B2 (en) | 2007-05-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2004025140A Expired - Lifetime JP3916611B2 (en) | 2004-02-02 | 2004-02-02 | Railway vehicle drive mechanism |
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| JP (1) | JP3916611B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162455A (en) * | 2006-12-28 | 2008-07-17 | Kawasaki Heavy Ind Ltd | Bogie for low-floor type railway vehicle |
| JP2013208952A (en) * | 2012-03-30 | 2013-10-10 | Japan Transport Engineering Co | Railway vehicle truck and method for manufacturing same |
| JP2014118063A (en) * | 2012-12-18 | 2014-06-30 | Kinki Sharyo Co Ltd | Driving device for railroad vehicle |
| JP2016539854A (en) * | 2013-12-11 | 2016-12-22 | ヘルシンギン カウプンギン リーケンネライトス−リーケライトス | Bogies and passenger car structures for railway vehicles |
| KR20180133652A (en) * | 2017-06-07 | 2018-12-17 | 한상천 | Mountain railway vehicle |
| JP2022505918A (en) * | 2019-01-10 | 2022-01-14 | 中▲車▼青▲島▼四方▲機車車▼輌股▲分▼有限公司 | Low-floor vehicles, bogies, their shaft end configurations, and friction discs |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103381838A (en) * | 2013-06-28 | 2013-11-06 | 长春轨道客车股份有限公司 | Synchronous driving mechanism with single motor and coaxial two wheels for power bogie of 100% low-floor independent wheel |
| CN103381839A (en) * | 2013-06-28 | 2013-11-06 | 长春轨道客车股份有限公司 | Driving mechanism with single motor and coaxial two wheels for 100% low-floor light rail rigid wheel |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008162455A (en) * | 2006-12-28 | 2008-07-17 | Kawasaki Heavy Ind Ltd | Bogie for low-floor type railway vehicle |
| JP2013208952A (en) * | 2012-03-30 | 2013-10-10 | Japan Transport Engineering Co | Railway vehicle truck and method for manufacturing same |
| JP2014118063A (en) * | 2012-12-18 | 2014-06-30 | Kinki Sharyo Co Ltd | Driving device for railroad vehicle |
| JP2016539854A (en) * | 2013-12-11 | 2016-12-22 | ヘルシンギン カウプンギン リーケンネライトス−リーケライトス | Bogies and passenger car structures for railway vehicles |
| KR20180133652A (en) * | 2017-06-07 | 2018-12-17 | 한상천 | Mountain railway vehicle |
| KR101989953B1 (en) * | 2017-06-07 | 2019-09-30 | 한상천 | Mountain railway vehicle |
| JP2022505918A (en) * | 2019-01-10 | 2022-01-14 | 中▲車▼青▲島▼四方▲機車車▼輌股▲分▼有限公司 | Low-floor vehicles, bogies, their shaft end configurations, and friction discs |
| JP7134347B2 (en) | 2019-01-10 | 2022-09-09 | 中▲車▼青▲島▼四方▲機車車▼輌股▲分▼有限公司 | Low-floor vehicle, bogie, its shaft end configuration, and friction disc |
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| JP3916611B2 (en) | 2007-05-16 |
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