JPH08244603A - Mounting structure of electric motor for rolling stock - Google Patents
Mounting structure of electric motor for rolling stockInfo
- Publication number
- JPH08244603A JPH08244603A JP7050231A JP5023195A JPH08244603A JP H08244603 A JPH08244603 A JP H08244603A JP 7050231 A JP7050231 A JP 7050231A JP 5023195 A JP5023195 A JP 5023195A JP H08244603 A JPH08244603 A JP H08244603A
- Authority
- JP
- Japan
- Prior art keywords
- electric motor
- insulator
- bogie frame
- insulating material
- bolt
- 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
Landscapes
- Motor Or Generator Frames (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、鉄道車両を駆動する電
動機のその台車への取付け構造に関するもので、特に電
動機から台車への漏電流を遮断したものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting an electric motor for driving a railway vehicle on a trolley thereof, and more particularly to a structure in which leakage current from the electric motor to the trolley is cut off.
【０００２】[0002]
【従来の技術】近年、鉄道車両の殆どは、その下部に設
けられた台車に、車輪と、その車輪を回転させるための
電動機を具備することにより駆動される。したがって、
この車両を駆動する電動機は、重量が大きく、台車枠に
きわめて強固に取付けられると共に、常にレールに沿う
ように変位する機構を有する車輪に所定の駆動力を伝達
し得るような伝動機構を介して車輪に接続している。例
えば、図１０に示す電動機の取付け構造であると、鉄鋼
などからなる台車枠１０の所定位置に、電動機１２，１
２がボルト等の結合手段２４により固定されている。ま
た、車輪１４，１４を連結する車軸１６は台車枠１０に
対して回転自在に軸支されており、この車軸１６と電動
機１２とが伝動機構を介して接続され、電動機からの駆
動力が車軸に伝達されるようになっている。2. Description of the Related Art In recent years, most railroad vehicles are driven by equipping a trolley provided at a lower portion thereof with wheels and an electric motor for rotating the wheels. Therefore,
The electric motor that drives this vehicle is heavy, is extremely firmly attached to the bogie frame, and has a mechanism that constantly displaces along the rails. Connected to wheels. For example, in the electric motor mounting structure shown in FIG. 10, the electric motors 12, 1 are installed at predetermined positions of the bogie frame 10 made of steel or the like.
2 is fixed by a coupling means 24 such as a bolt. Further, an axle 16 connecting the wheels 14, 14 is rotatably supported with respect to the bogie frame 10. The axle 16 and the electric motor 12 are connected via a transmission mechanism, and the driving force from the electric motor is applied to the axle. To be transmitted to.
【０００３】この例のものであると、電動機１２からの
駆動力は、まず変位する車輪の動きの緩衝作用を発揮す
る継手１８に伝わり、その後、小歯車２０及び大歯車２
２などからなる減速機構を介して車軸１６に伝達され
る。In this example, the driving force from the electric motor 12 is first transmitted to the joint 18 that exerts a buffering effect on the movement of the wheel to be displaced, and then the small gear 20 and the large gear 2 are provided.
It is transmitted to the axle 16 via a speed reducing mechanism such as 2.
【０００４】[0004]
【発明が解決しようとする課題】ところで、電動機１２
においては、絶縁劣化があると電動機の周部に漏電流が
漏れることがあった。こうした漏電流は金属である台車
枠１０や、伝動機構を経て車輪１４に流れることがあ
り、甚だ不都合であった。また、こうした電動機１２の
絶縁状態の調査について、電動機を台車に取り付けたま
ま行う方法が見い出されつつあるが、その場合、電動機
１２の台車枠への取付部や伝動機構を通って、電動機１
２からの漏電流が台車枠１０や車輪１４に流れると行え
なくなる。By the way, the electric motor 12
However, if the insulation deteriorates, a leakage current may leak to the peripheral portion of the electric motor. Such leakage current may flow to the wheels 14 via the bogie frame 10 made of metal or the transmission mechanism, which is very inconvenient. In addition, a method is being found for investigating the insulation state of the electric motor 12 while the electric motor is attached to the bogie. In that case, the electric motor 1 is passed through an attachment portion of the electric motor 12 to the bogie frame or a transmission mechanism.
If leakage current from 2 flows to the bogie frame 10 or the wheels 14, it cannot be performed.
【０００５】本発明は前記課題を解決するためになされ
たもので、電動機から台車枠や車輪等に漏電流が流れる
ことを防止した電動機の取付構造を提供することを目的
とする。The present invention has been made to solve the above problems, and an object of the present invention is to provide a mounting structure for an electric motor which prevents leakage current from flowing from the electric motor to a bogie frame, wheels, or the like.
【０００６】[0006]
【課題を解決するための手段】本発明の鉄道車両用電動
機の取付構造は、鉄道車両用の電動機の車両に設けられ
た台車への取付構造において、電動機と台車枠の間に絶
縁体が介在し、電動機は絶縁体で被覆されたボルトを用
いて台車枠に固定し、電動機の駆動力を車輪に伝達する
伝動機構に絶縁体を配備して、電動機が電気的に独立さ
れ、該絶縁体は、圧縮強度が６kg/mm2以上、剪断強度が
４kg/mm2以上、電気絶縁抵抗が１０ＭΩ以上の強化プラ
スチックであることを特徴とするものである。According to the present invention, there is provided a structure for mounting an electric motor for a railway vehicle on a bogie provided on a vehicle for mounting the electric motor for the railway vehicle, wherein an insulator is interposed between the electric motor and the bogie frame. Then, the electric motor is fixed to the bogie frame using a bolt covered with an insulator, and the insulator is provided in the transmission mechanism that transmits the driving force of the electric motor to the wheels, so that the electric motor is electrically independent and Is characterized by being a reinforced plastic having a compressive strength of 6 kg / mm 2 or more, a shear strength of 4 kg / mm 2 or more, and an electrical insulation resistance of 10 MΩ or more.
【０００７】[0007]
【作用】本発明の電動機の取付構造であると、電動機と
接触する部材に絶縁体を配置し、電動機を電気的に完全
に取り囲んで独立させた状態となる。よって、電動機か
らの漏電流が電動機以外の部材、台車枠等に流れること
が防止される。According to the electric motor mounting structure of the present invention, an insulator is disposed on a member that comes into contact with the electric motor, and the electric motor is completely surrounded and independent. Therefore, leakage current from the electric motor is prevented from flowing to members other than the electric motor, the bogie frame, and the like.
【０００８】本発明で使用する絶縁体には特定の要件を
満たす種々の強化プラスチック、特に繊維強化プラスチ
ック（ＦＲＰ）が使用される。繊維強化プラスチックの
マトリックス樹脂としては、熱硬化性樹脂が耐久性、取
扱い性の点で好ましいが、必ずしもその必要はなく、ク
リープ性能等の要件を満たすものであれば熱可塑性樹脂
であっても良い。このマトリックス樹脂には、例えば、
エポキシ樹脂、不飽和ポリエステル樹脂、フェノール樹
脂、ユリア樹脂、メラミン樹脂、珪素樹脂、ジアリルフ
タレート樹脂等が適用できる。中でも、エポキシ樹脂
が、寸法安定性、耐久性、取扱性、金属に対する接着性
等において優れている。また、マトリックス樹脂中に含
有される繊維としては、ガラス繊維、アラミド繊維、ポ
リプロピレン繊維、ポリエチレン繊維、アクリル繊維、
ポリビニルアルコール繊維等の合成繊維、天然繊維、炭
化珪素繊維やアルミナ繊維、あるいは炭化珪素やチタン
酸カリウムのウィスカー等の各種の非導電性繊維が使用
できる。こうした繊維状の補強材の形態としては、マッ
ト状やクロス状などの織物状態のものが、耐久性に優れ
て好ましい。中でも、クロス状のものがより耐久性に優
れている。尚、繊維強化プラスチックには、この他に
も、非導電性の粉体を併用したり、もしくはそれらの粉
体のみを含有させて補強することもできる。さらに、一
方向材を異なる方向に積層させたシートであっても良
い。Various reinforced plastics, especially fiber reinforced plastics (FRP), which meet specific requirements are used for the insulator used in the present invention. As the matrix resin of the fiber reinforced plastic, a thermosetting resin is preferable in terms of durability and handleability, but it is not always necessary and may be a thermoplastic resin as long as it satisfies the requirements such as creep performance. . This matrix resin, for example,
Epoxy resin, unsaturated polyester resin, phenol resin, urea resin, melamine resin, silicon resin, diallyl phthalate resin and the like can be applied. Among them, epoxy resin is excellent in dimensional stability, durability, handleability, adhesion to metal, and the like. Further, as the fiber contained in the matrix resin, glass fiber, aramid fiber, polypropylene fiber, polyethylene fiber, acrylic fiber,
Synthetic fibers such as polyvinyl alcohol fibers, natural fibers, silicon carbide fibers and alumina fibers, and various non-conductive fibers such as whiskers of silicon carbide and potassium titanate can be used. As a form of such a fibrous reinforcing material, a woven state such as a mat shape or a cloth shape is preferable because of excellent durability. Among them, the cloth-shaped one is more durable. In addition to the above, non-conductive powder may be used in combination with the fiber reinforced plastic, or only the powder may be contained for reinforcement. Further, it may be a sheet in which unidirectional materials are laminated in different directions.
【０００９】本発明の絶縁体は、高電圧（１０００Ｖ以
上）に耐用できる高い電気絶縁性の他、本来、隙間のな
いべき箇所に設けるものなので、できるだけ薄くした状
態で高い耐久性能を発揮することが要求される。電気絶
縁性としては、電気絶縁抵抗が少なくとも１０ＭΩ以上
なければならない。Since the insulator of the present invention has high electrical insulation capable of withstanding a high voltage (1000 V or more), since it is provided at a place where there should be no gap originally, it should exhibit high durability performance in a state of being as thin as possible. Is required. As for electrical insulation, the electrical insulation resistance must be at least 10 MΩ or more.
【００１０】また、電動機と台車枠の間に介在する絶縁
体には、薄い状態で重量の大きい電動機（約１トン）を
支持する必要があるので、圧縮強度は少なくとも６kg/c
m2以上が必要である。また、電動機と伝動機構の間で
は、例えば、リーマボルトでは、起動停止のたびに継手
や撓み板から２.８kg/mm2程度の応力の付加が繰返され
る。したがって、当然、これに耐え得る圧縮強度や剪断
強度が必要である。また長期にわたる耐久性も要求され
る。これらの要件を満たすため、鉄道車両の電動機の取
付に介在させる絶縁体としては、圧縮強度として、６kg
/mm2以上、剪断強度として、４kg/mm2以上はないと実際
の使用に用いることができない。圧縮強度としては１５
kg/mm2であればより好ましい。また、曲げ強度として、
２０kg/mm2以上、引張り強度として、１５kg/mm2以上あ
るとより好ましい。Further, since it is necessary to support a thin and heavy electric motor (about 1 ton) on the insulator interposed between the electric motor and the bogie frame, the compressive strength is at least 6 kg / c.
m 2 or more is required. Further, between the electric motor and the transmission mechanism, for example, in the case of a reamer bolt, a stress of about 2.8 kg / mm 2 is repeatedly applied from the joint and the flexible plate each time the start and stop are performed. Therefore, naturally, it is necessary to have compressive strength and shear strength that can withstand this. Also, long-term durability is required. In order to meet these requirements, the insulator to be installed in mounting the electric motor of the railway vehicle has a compressive strength of 6 kg.
/ mm 2 or more, as shear strength, it can not be used for practical use when 4 kg / mm 2 or more is not. 15 as compressive strength
More preferably kg / mm 2 . Also, as bending strength,
It is more preferable that the tensile strength is 20 kg / mm 2 or more and the tensile strength is 15 kg / mm 2 or more.
【００１１】尚、圧縮強度はJIS K7056に、曲げ強度はJ
IS K7055に、引張り強度はJIS K7054に、剪断強度はJIS
K7057に準じて行った試験によって得られるものとす
る。The compressive strength is JIS K7056 and the bending strength is J
IS K7055, tensile strength is JIS K7054, shear strength is JIS
It shall be obtained by the test conducted according to K7057.
【００１２】[0012]
【実施例】以下に本発明の実施例を図面を参照して説明
するが、本発明がそれらに限定されないのは勿論のこと
である。図１の概略構成図に示すとおり、台車枠１０に
は、電動機１２，１２が固定され、また車輪１４，１４
を連結した車軸１６が軸支されている。そして、この車
軸１６と電動機１２とは継手１８や歯車機構２０，２２
などからなる伝動機構によって接続されている。本実施
例においては、この電動機１２とこれが固定される台車
枠１０の間に電気絶縁性を有する絶縁体２６が介在して
いる。また、電動機１２の固定に使用されるボルト２
４，２４等の結合手段は、絶縁体で被覆されたものが使
用される。さらに、電動機１２は伝動機構と接続される
が、その伝動機構には絶縁体２８が介在し、電動機１２
は電気的には完全に独立した状態におかれる。尚、電動
機１２の駆動や制御等のために必要な配線などが別に設
けられているのは勿論のことである。Embodiments of the present invention will be described below with reference to the drawings, but it goes without saying that the present invention is not limited thereto. As shown in the schematic configuration diagram of FIG. 1, electric motors 12, 12 are fixed to the bogie frame 10, and wheels 14, 14 are also provided.
Axle 16 that is connected to is pivotally supported. The axle 16 and the electric motor 12 are connected to each other by the joint 18 and the gear mechanisms 20, 22.
It is connected by a transmission mechanism consisting of. In the present embodiment, an electrically insulating insulator 26 is interposed between the electric motor 12 and the bogie frame 10 to which the electric motor 12 is fixed. In addition, the bolt 2 used for fixing the electric motor 12
As the coupling means such as 4, 24, those coated with an insulator are used. Further, the electric motor 12 is connected to the transmission mechanism, and the insulator 28 is interposed in the transmission mechanism,
Are electrically completely independent. Needless to say, wiring and the like necessary for driving and controlling the electric motor 12 are separately provided.
【００１３】さらに詳説する。本発明での電動機は鉄道
車両用のものであれば特に限定されるものではないが、
図２にその一例を示す。この電動機１２は、回転軸３０
と、この外側に配置されるコイル等の通常の電動機に必
要な部品等と、これらを内部に配置したカバー３２とを
具備して概略構成される。この電動機１２はボルト孔２
５，２７に螺合する４本の金属製のボルトで台車枠１０
に固定される。通常、２４mm径のボルトが使用される。
そして、電動機１２が台車枠１０に固定されたときに、
台車枠１０と接触する箇所にシート状の絶縁体２６が貼
着される。さらに、図４に示すように、ボルト２４ａの
ストレート部３４及び頭３６の下面３８を絶縁体２６で
被覆しておく。こうした絶縁体２６はより薄くすること
が求められ、０.２mm程度が好適である。また、電動機
１２とボルト２４ａの間には複数の座金４０を介在させ
るが、各座金４０にも絶縁体２６を形成しておく。Further details will be described. The electric motor in the present invention is not particularly limited as long as it is for a rail car,
FIG. 2 shows an example thereof. This electric motor 12 has a rotating shaft 30.
And a component such as a coil arranged on the outside, which is necessary for a normal electric motor, and a cover 32 in which these components are arranged. This electric motor 12 has bolt holes 2
Bogie frame 10 with four metal bolts screwed to 5, 27
Fixed to. Normally, bolts with a diameter of 24 mm are used.
Then, when the electric motor 12 is fixed to the bogie frame 10,
A sheet-shaped insulator 26 is attached to a portion that comes into contact with the bogie frame 10. Further, as shown in FIG. 4, the straight portion 34 of the bolt 24 a and the lower surface 38 of the head 36 are covered with the insulator 26. The insulator 26 is required to be thinner, and is preferably about 0.2 mm. Although a plurality of washers 40 are interposed between the electric motor 12 and the bolts 24a, an insulator 26 is formed on each washer 40 as well.
【００１４】さらに、本例では、台車枠１０のボルト２
４ａの螺合孔４２の開口部側にボルト２４ａの貫通する
中空部を有した角棒４４を挿入してあり、この角棒４４
の上部が嵌合し得るような凹部４６が予め電動機１２に
形成されている。この場合、角棒４４の上部であって電
動機１２と接触する箇所や、電動機１２において角棒４
４と接触する箇所にも絶縁体２６を形成しておく。通
常、角棒４４は凹部４６に隙間なく嵌合するように設計
されており、絶縁体を介在させる余裕はないので、絶縁
体２６を介在させる分だけのクリアランスを角棒４４を
切削して形成しておかなければならない。Further, in this example, the bolt 2 of the bogie frame 10 is used.
A square bar 44 having a hollow portion through which the bolt 24a penetrates is inserted into the opening side of the screw hole 42 of 4a.
The electric motor 12 is preliminarily formed with a recess 46 into which the upper portion of the motor can be fitted. In this case, the portion of the upper portion of the square rod 44 that comes into contact with the electric motor 12 or the square rod 4 in the electric motor 12
The insulator 26 is also formed at a position where the insulator 4 contacts. Normally, the square bar 44 is designed to fit into the recess 46 without any clearance, and there is no room for the insulator to intervene. Therefore, a clearance corresponding to the interposition of the insulator 26 is formed by cutting the square bar 44. I have to keep it.
【００１５】同様に、図５に示すように、台車枠１０と
電動機１２の間に絶縁体２６を介在させておき、これら
を結合するボルト２４ｂの台車枠１０に接触する箇所、
すなわち、ストレート部３４及び頭３６の下面３８には
絶縁体２６で被覆しておく。また、座金４０にも絶縁体
２６を形成しておく。Similarly, as shown in FIG. 5, an insulator 26 is interposed between the bogie frame 10 and the electric motor 12, and a bolt 24b for connecting them is brought into contact with the bogie frame 10.
That is, the straight portion 34 and the lower surface 38 of the head 36 are covered with the insulator 26. The insulator 26 is also formed on the washer 40.
【００１６】また、図２に示すように、電動機１２の回
転軸３０の先端部には、楕円形の継手４８を設け、この
継手４８の両端に略口字状の撓み板５０を結合してい
る。撓み板５０は図３に示すように、口字状の金属製板
が複数枚重ね合わされて概略構成されるもので、この撓
み板５０に歯車機構等が連結し、電動機１２からの駆動
力は車軸に伝達される。この撓み板５０は車輪と電動機
１２の変位を緩衝する作用を発揮する。図６，７に示す
ように、継手４８と撓み板５０とはリーマボルト５２及
びナット５４で強固に締め付けられて結合される。この
際、リーマボルト５２のストレート部３４及び頭３６の
下面３８には絶縁体２８ａで被覆しておく。リーマボル
ト５２が継手４８のボルト孔６２及び撓み板５０のボル
ト孔６０に密接できるように、リーマボルト５２のスト
レート部３４の径は設計されているが、この場合、絶縁
体２８ａの厚さ分だけストレート部３４を縮径してお
く。また、継手４８と撓み板５０の接触する箇所にも互
いに絶縁体２８ｂを貼着しておく。Further, as shown in FIG. 2, an elliptical joint 48 is provided at the tip of the rotary shaft 30 of the electric motor 12, and substantially square-shaped flexible plates 50 are connected to both ends of the joint 48. There is. As shown in FIG. 3, the flexible plate 50 is roughly configured by stacking a plurality of square-shaped metal plates, and a gear mechanism or the like is connected to the flexible plate 50 so that the driving force from the electric motor 12 is Transmitted to the axle. The flexible plate 50 has a function of buffering the displacement between the wheel and the electric motor 12. As shown in FIGS. 6 and 7, the joint 48 and the flexible plate 50 are firmly tightened and coupled by the reamer bolt 52 and the nut 54. At this time, the straight portion 34 of the reamer bolt 52 and the lower surface 38 of the head 36 are covered with the insulator 28a. The diameter of the straight portion 34 of the reamer bolt 52 is designed so that the reamer bolt 52 can be brought into close contact with the bolt hole 62 of the joint 48 and the bolt hole 60 of the flexible plate 50. In this case, the diameter of the straight portion 34 is the same as the thickness of the insulator 28a. The diameter of the portion 34 is reduced. In addition, the insulators 28b are also attached to the contact points between the joint 48 and the flexible plate 50.
【００１７】また、撓み板５０とナット５４の間には、
駆動力による応力の撓み板５０のボルト孔６０への集中
を抑制するための複数枚のスペーサ５６を介在させる
が、このスペーサ５６と撓み板５０の接触する箇所にも
互いに絶縁体２８ｃを貼着しておく。さらに、スペーサ
５６とナット５４の間には、絶縁体２８ｄの貼着された
ナット緩み防止板６４及び絶縁板５８が介在している。Between the flexible plate 50 and the nut 54,
A plurality of spacers 56 are interposed to suppress the concentration of the stress due to the driving force in the bolt holes 60 of the flexible plate 50. The insulators 28c are attached to the contact points between the spacers 56 and the flexible plate 50. I'll do it. Further, between the spacer 56 and the nut 54, the nut loosening prevention plate 64 and the insulating plate 58 to which the insulator 28d is attached are interposed.
【００１８】上説した図６，７のものでは、リーマボル
ト５２のストレート部３４を縮径し、そこに絶縁体２８
ａを形成しておいたが、必ずしもこれに限られず、図８
に示すように、継手４８’のリーマボルト５２’に接触
する箇所を絶縁体２８ａ’で被覆したものであってもか
まわない。この場合、リーマボルト５２’のストレート
部３４の太さに見合うボルト孔６２の径がｗであるなら
ば、絶縁体２８ａ’が形成された状態でリーマボルト５
２’が嵌合できるように、ボルト孔６２の径をｗ’に拡
径しておく必要がある。例えば、使用する絶縁体２８
ａ’の厚さが１mmであれば、ｗ’をｗに対して２mm大き
くしておく。具体的には、ｗが２０mmであればｗ’は２
２mmとなる。また、図８に示すように、撓み板４８’と
回転軸３０の間にも絶縁板２８ｅが介在する。6 and 7 described above, the diameter of the straight portion 34 of the reamer bolt 52 is reduced, and the insulator 28 is placed there.
Although a has been formed, it is not limited to this, and FIG.
As shown in FIG. 5, the portion of the joint 48 ′ that contacts the reamer bolt 52 ′ may be covered with the insulator 28a ′. In this case, if the diameter of the bolt hole 62 corresponding to the thickness of the straight portion 34 of the reamer bolt 52 ′ is w, the reamer bolt 5 with the insulator 28a ′ formed.
It is necessary to expand the diameter of the bolt hole 62 to w ′ so that 2 ′ can be fitted. For example, the insulator 28 used
If the thickness of a'is 1 mm, w'is increased by 2 mm with respect to w. Specifically, if w is 20 mm, w'is 2
It will be 2 mm. Further, as shown in FIG. 8, an insulating plate 28e is also interposed between the flexible plate 48 'and the rotary shaft 30.
【００１９】本実施例において、ボルト２４やリーマボ
ルト５２、各座金に形成する絶縁体は、未硬化のプリプ
レグの状態で貼り付けておいて、その後、約１２０℃に
加熱して硬化させることができる。また、台車枠１０と
電動機１２の接触面に貼着する絶縁体は予め硬化してあ
るものを貼着したり、または未硬化状態であるプリプレ
グを常温で硬化させることができる。In this embodiment, the bolt 24, the reamer bolt 52, and the insulator formed on each washer can be attached in the state of uncured prepreg and then heated to about 120 ° C. to be cured. . In addition, the insulator to be attached to the contact surfaces of the bogie frame 10 and the electric motor 12 may be a pre-cured insulator, or an uncured prepreg may be cured at room temperature.
【００２０】本発明に適用できる絶縁体としては、例え
ば、ガラス繊維クロスを含有させたエポキシ樹脂からな
るプリプレグ（例えば、「ＭＸＢ」化成コンポジット
社製）や、アラミド繊維クロスを含有させたエポキシ樹
脂からなるプリプレグ（例えば、「ＭＸＭ」化成コン
ポジット社製）の厚さ０.２mmのシートが適用できる。
これらのプリプレグであると、１２０℃で１時間程度の
熱処理により容易にシート状のＦＲＰに硬化させること
ができる。これらの硬化させたものの物性を表１に示
す。Examples of the insulator applicable to the present invention include a prepreg made of an epoxy resin containing glass fiber cloth (for example, "MXB" manufactured by Kasei Composite Co., Ltd.) and an epoxy resin containing aramid fiber cloth. A 0.2 mm thick sheet of prepreg (for example, "MXM" made by Kasei Composite Co., Ltd.) can be applied.
These prepregs can be easily cured into a sheet-like FRP by heat treatment at 120 ° C. for about 1 hour. Table 1 shows the physical properties of these cured products.
【００２１】[0021]
【表１】 [Table 1]
【００２２】また、下記表２に示すように、補強材とし
てガラス繊維を添加した各マトリックス樹脂について、
初期曲げ強度σB（kg/mm2）、強度試験を１０7回繰り返
した後の疲労強度σr（kg/mm2）と、強度変化σr/σBを
調べた（参照：「複合材料工学」日科技連発行）。結果
を表２に示す。Further, as shown in Table 2 below, for each matrix resin to which glass fiber was added as a reinforcing material,
The initial bending strength σ B (kg / mm 2 ), the fatigue strength σ r (kg / mm 2 ) after repeating the strength test 10 7 times, and the strength change σ r / σ B were examined (see “Composite Material”). Engineering "issued by Japan Science and Technology Association). Table 2 shows the results.
【表２】 表２から、補強材の形態としては、マット状のものより
も、クロス状にしたものの方が、特に耐久性において優
れていることが明らかにわかる。[Table 2] From Table 2, it is clearly seen that the reinforcing material is more excellent in durability than the mat-shaped one in the cross shape.
【００２３】本実施例の構造の電動機の取付構造におい
て、絶縁体として上記ガラス繊維クロスプリプレグ「Ｍ
ＸＢ」を成形したものを使用して、電動機と台車枠間の
電気抵抗を実測した。その結果、電気抵抗は７５〜２０
０ＭΩであり、電動機からの漏電流が絶縁体を通しては
台車枠にほぼ流れない程度に絶縁されていた。In the motor mounting structure having the structure of this embodiment, the glass fiber cloth prepreg "M" is used as an insulator.
The electric resistance between the electric motor and the bogie frame was measured using a molded product of "XB". As a result, the electric resistance is 75 to 20.
It was 0 MΩ, and it was insulated so that the leakage current from the electric motor hardly passed through the insulator into the bogie frame.
【００２４】また、伝動機構としては、必ずしも撓み板
等を有するものではなく、他の機構で構成されるものに
も適用できる。例えば、図９に示す可撓歯車継手機構６
６は、撓み板の代りに使用されるもので、それぞれピニ
オン６８ａ，ｂを配備したカップリングスリーブ７０
ａ，ｂが結合して概略構成されるもので、一方のピニオ
ン６８ａは電動機に、他方のピニオン６８ｂは後続する
歯車機構に接続され、電動機からの駆動力が車輪に伝達
される。この構成のものであると、ピニオン６８ａ，ｂ
の外歯７２に丸みが付与されていることから、電動機と
車輪との間の変位が吸収される。このものの場合、電動
機側のカップリングスリーブ７０ａと車輪側のカップリ
ングスリーブ７０ｂの間に絶縁体７４を介在させる。ま
た、両カップリングスリーブ７０ａ，ｂを結合するボル
トやナット等の結合部材にも絶縁体を被覆しておく。Further, the transmission mechanism does not necessarily have a bending plate or the like, but can be applied to a mechanism constituted by another mechanism. For example, the flexible gear coupling mechanism 6 shown in FIG.
6 is used instead of the flexible plate, and has a coupling sleeve 70 in which pinions 68a and 68b are provided, respectively.
A pinion 68a is connected to an electric motor and another pinion 68b is connected to a gear mechanism that follows, so that driving force from the electric motor is transmitted to wheels. With this structure, the pinions 68a, 68b
Since the outer teeth 72 of the are rounded, the displacement between the electric motor and the wheels is absorbed. In this case, the insulator 74 is interposed between the coupling sleeve 70a on the electric motor side and the coupling sleeve 70b on the wheel side. Further, a coupling member such as a bolt or a nut that couples the coupling sleeves 70a and 70b is also coated with an insulator.
【００２５】[0025]
【発明の効果】本発明の鉄道車両用電動機の取付構造
は、電動機と台車枠の間に絶縁体が介在し、電動機は絶
縁体で被覆されたボルトを用いて台車枠に固定され、電
動機の駆動力を車輪に伝達する伝動機構に絶縁体が配備
され、絶縁体は、圧縮強度が６kg/mm2以上、剪断強度が
４kg/mm2以上、電気絶縁抵抗が１０ＭΩ以上の強化プラ
スチックであることを特徴とするもので、電動機を電気
的に完全に取り囲んで独立させた状態となる。よって、
電動機からの漏電流が電動機以外の部材、台車枠等に流
れることが防止される。したがって、台車枠に、絶縁体
を通っては漏電流が流れず、電動機の絶縁状態の調査を
台車に取り付けたまま行うことも可能となる。In the mounting structure of the electric motor for the railway vehicle of the present invention, the insulator is interposed between the electric motor and the bogie frame, and the electric motor is fixed to the bogie frame by using the bolt covered with the insulator, An insulator is provided in the transmission mechanism that transmits the driving force to the wheels, and the insulator should be a reinforced plastic with a compressive strength of 6 kg / mm 2 or more, a shear strength of 4 kg / mm 2 or more, and an electrical insulation resistance of 10 MΩ or more. Is characterized in that the electric motor is completely surrounded and becomes independent. Therefore,
Leakage current from the electric motor is prevented from flowing to members other than the electric motor, the bogie frame and the like. Therefore, no leakage current flows through the bogie frame through the insulator, and it becomes possible to investigate the insulation state of the electric motor with the bogie frame attached to the bogie.
【００２６】また、本発明で使用する絶縁体は、特定の
要件を満たす強化プラスチックであり、配備箇所の要求
から非常に薄い仕様でありながら、きわめて苛酷な条件
に耐用できるもので、鉄道車両としての使用に適用でき
るものである。The insulator used in the present invention is a reinforced plastic that meets specific requirements, has a very thin specification from the requirements of the location of deployment, and can withstand extremely harsh conditions. Applicable to the use of.
【図１】本実施例の取付構造の概略平面図である。FIG. 1 is a schematic plan view of a mounting structure of this embodiment.
【図２】電動機の一例を示す伝動機構側からの斜視図で
ある。FIG. 2 is a perspective view from the transmission mechanism side showing an example of an electric motor.
【図３】撓み板の一例を示す斜視図である。FIG. 3 is a perspective view showing an example of a flexible plate.
【図４】電動機と台車枠の取付部の一例を示す断面図で
ある。FIG. 4 is a cross-sectional view showing an example of a mounting portion of an electric motor and a bogie frame.
【図５】電動機と台車枠の他の取付部の一例を示す断面
図である。FIG. 5 is a cross-sectional view showing an example of another attachment portion of the electric motor and the bogie frame.
【図６】継手と撓み板の取付部分の一例を示す断面図で
ある。FIG. 6 is a cross-sectional view showing an example of a fitting portion between a joint and a flexible plate.
【図７】同例の斜視図である。FIG. 7 is a perspective view of the same example.
【図８】継手と撓み板の取付部分の他の例を示す断面図
である。FIG. 8 is a cross-sectional view showing another example of the attachment portion of the joint and the flexible plate.
【図９】伝動機構の他の例の要部を示す構成図である。FIG. 9 is a configuration diagram showing a main part of another example of a transmission mechanism.
【図１０】従来例の取付構造の概略平面図である。FIG. 10 is a schematic plan view of a conventional mounting structure.
１０ 台車枠 １２ 電動機 １４ 車輪 １８ 継手 ２４ ボルト ２６ 絶縁体 ２８ 絶縁体 ５２ リーマボルト ７４ 絶縁体 10 Bogie frame 12 Electric motor 14 Wheel 18 Joint 24 Bolt 26 Insulator 28 Insulator 52 Reamer bolt 74 Insulator
───────────────────────────────────────────────────── フロントページの続き (72)発明者 前田 敏勝 神奈川県横浜市青葉区鴨志田町1000番地 三菱化学株式会社横浜総合研究所内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Toshikatsu Maeda 1000 Kamoshida-cho, Aoba-ku, Yokohama-shi, Kanagawa Mitsubishi Chemical Corporation Yokohama Research Institute
Claims (1)
台車への取付構造において、電動機と台車枠の間に絶縁
体が介在し、電動機は絶縁体で被覆されたボルトを用い
て台車枠に固定し、電動機の駆動力を車輪に伝達する伝
動機構に絶縁体を配備して、電動機が電気的に独立さ
れ、 絶縁体は、圧縮強度が６kg/mm2以上、剪断強度が４kg/m
m2以上、電気絶縁抵抗が１０ＭΩ以上の強化プラスチッ
クであることを特徴とする鉄道車両用電動機の取付構
造。1. In a structure for mounting an electric motor for a railroad vehicle on a bogie provided on a vehicle, an insulator is interposed between the electric motor and the bogie frame, and the electric motor is a bogie frame using a bolt covered with the insulator. The motor is electrically independent by mounting an insulator on the transmission mechanism that transfers the driving force of the motor to the wheels, and the insulator has a compressive strength of 6 kg / mm 2 or more and a shear strength of 4 kg / m.
A mounting structure for an electric motor for a railway vehicle, which is made of reinforced plastic with m 2 or more and electric insulation resistance of 10 MΩ or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05023195A JP3468905B2 (en) | 1995-03-09 | 1995-03-09 | Mounting structure of electric motor for railway vehicles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP05023195A JP3468905B2 (en) | 1995-03-09 | 1995-03-09 | Mounting structure of electric motor for railway vehicles |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH08244603A true JPH08244603A (en) | 1996-09-24 |
| JP3468905B2 JP3468905B2 (en) | 2003-11-25 |
Family
ID=12853255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP05023195A Expired - Fee Related JP3468905B2 (en) | 1995-03-09 | 1995-03-09 | Mounting structure of electric motor for railway vehicles |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3468905B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006030855A1 (en) * | 2004-09-16 | 2006-03-23 | Ntn Corporation | Shaft coupling for vehicle |
| JP2009148038A (en) * | 2007-12-12 | 2009-07-02 | Railway Technical Res Inst | Electric rolling stock |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105263U (en) * | 1983-12-24 | 1985-07-18 | 株式会社東芝 | Support structure for vehicle traction motor |
| JPS63159173A (en) * | 1986-12-23 | 1988-07-02 | 三菱電機株式会社 | Truck for loading motor |
| JPS63315364A (en) * | 1986-10-17 | 1988-12-23 | Mitsubishi Electric Corp | Electric rolling stock running device |
| JPH0455162A (en) * | 1990-06-20 | 1992-02-21 | Mitsubishi Electric Corp | Travelling device for electric rolling stock |
-
1995
- 1995-03-09 JP JP05023195A patent/JP3468905B2/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60105263U (en) * | 1983-12-24 | 1985-07-18 | 株式会社東芝 | Support structure for vehicle traction motor |
| JPS63315364A (en) * | 1986-10-17 | 1988-12-23 | Mitsubishi Electric Corp | Electric rolling stock running device |
| JPS63159173A (en) * | 1986-12-23 | 1988-07-02 | 三菱電機株式会社 | Truck for loading motor |
| JPH0455162A (en) * | 1990-06-20 | 1992-02-21 | Mitsubishi Electric Corp | Travelling device for electric rolling stock |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006030855A1 (en) * | 2004-09-16 | 2006-03-23 | Ntn Corporation | Shaft coupling for vehicle |
| JP2006083962A (en) * | 2004-09-16 | 2006-03-30 | Ntn Corp | Vehicular shaft joint |
| JP2009148038A (en) * | 2007-12-12 | 2009-07-02 | Railway Technical Res Inst | Electric rolling stock |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3468905B2 (en) | 2003-11-25 |
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