JPH06327189A - Induction motor provided with disk brake device - Google Patents
Induction motor provided with disk brake deviceInfo
- Publication number
- JPH06327189A JPH06327189A JP5110176A JP11017693A JPH06327189A JP H06327189 A JPH06327189 A JP H06327189A JP 5110176 A JP5110176 A JP 5110176A JP 11017693 A JP11017693 A JP 11017693A JP H06327189 A JPH06327189 A JP H06327189A
- Authority
- JP
- Japan
- Prior art keywords
- brake device
- cooling air
- disc brake
- rotor shaft
- induction motor
- 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)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Cooling System (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、主に電車等の鉄道車両
用主電動機などとして利用される誘導電動機に関し、特
に電動機本体の端部に同軸的にディスクブレーキ装置を
連設した誘導電動機に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an induction motor mainly used as a main electric motor for railway vehicles such as electric trains, and more particularly to an induction electric motor in which a disc brake device is coaxially connected to an end of an electric motor main body. .
【０００２】[0002]
【従来の技術】近年、鉄道車両の高速化が進められて来
ているが、その反面、車両の振動・騒音等の低減が求め
られている。これらの問題を解決するために有効な手段
として、車両の軽量化、特に台車のばね下重量の軽減が
あげられる。2. Description of the Related Art In recent years, speeding up of rolling stock has been promoted, but on the other hand, reduction of vibration and noise of the rolling stock has been demanded. An effective means for solving these problems is to reduce the weight of the vehicle, especially to reduce the unsprung weight of the bogie.
【０００３】このためにの一つの対策として、主電動機
（原動機）として搭載される誘導電動機の端部に同軸的
にディスクブレーキ装置を連設すること、即ち電動機と
ディスクブレーキ装置とを一体化することにより、全体
の重量軽減並びに小形化を図る考えがある。As one measure for this, a disc brake device is coaxially connected to the end of an induction motor mounted as a main motor (motor), that is, the motor and the disc brake device are integrated. By doing so, it is possible to reduce the overall weight and reduce the size.
【０００４】このディスクブレーキ装置付き誘導電動機
の構成を図４に示す。即ち、図中１は電動機本体を示
し、２はその電動機本体１の端部に同軸的に連設された
ディスクブレーキ装置を示す。FIG. 4 shows the structure of this induction motor with a disc brake device. That is, in the figure, 1 indicates an electric motor main body, and 2 indicates a disc brake device which is coaxially connected to an end portion of the electric motor main body 1.
【０００５】電動機本体１はＶＶＶＦインバータ制御の
かご型誘導電動機と同等のもので、ステータとして固定
子鉄心３及び固定子コイル４と、該固定子鉄心３の両端
側に取り付けた分割フレーム５ａ，５ｂ及びこれら相互
の継ぎ部材（図示省略）とを備え、このステータの両端
中央部に軸受ハウジング６ａ，６ａを介し軸受（ベアリ
ング）７ａ，７ｂを有している。これら両端の軸受７
ａ，７ｂを介してロータの回転子軸８を回転自在に支承
している。この回転子軸８には回転子鉄心９とロータバ
ー１０並びにエンドリング１１が装着されている。The electric motor main body 1 is equivalent to a squirrel-cage induction motor controlled by a VVVF inverter, and has a stator core 3 and a stator coil 4 as stators, and split frames 5a, 5b attached to both ends of the stator core 3. And a joint member (not shown) for mutual mutual use, and bearings 7a and 7b are provided at the center portions of both ends of the stator via bearing housings 6a and 6a. Bearings 7 at both ends
The rotor shaft 8 of the rotor is rotatably supported via a and 7b. A rotor core 9, a rotor bar 10 and an end ring 11 are mounted on the rotor shaft 8.
【０００６】また、この電動機本体１内のステータやロ
ータの発熱を抑えるべく、一端側のフレーム５ａに冷却
風導入口１２を設け、ここに図示しないが車体側送風機
からフレキシブルダクトなどを介して冷却風を強制的に
導入するようになっている。この冷却風は矢印で示す如
く電動機本体１内の一端側に入り、そこから固定子鉄心
３と回転子鉄心９との間のギャップＧ並びに該回転子鉄
心９に貫通した複数の通風孔９ａを通って機内を冷却し
ながら他端側に通風して、フレーム５ｂの排気口１３よ
り機外に流出するようになっている。Further, in order to suppress heat generation of the stator and rotor in the electric motor main body 1, a cooling air introduction port 12 is provided in the frame 5a on one end side, and although not shown here, cooling is performed from a body side blower through a flexible duct or the like. The wind is forced to be introduced. This cooling air enters one end side of the electric motor main body 1 as shown by the arrow, and from there, a gap G between the stator core 3 and the rotor core 9 and a plurality of ventilation holes 9a penetrating the rotor core 9 are formed. While cooling the inside of the machine, it ventilates to the other end side and flows out of the machine from the exhaust port 13 of the frame 5b.
【０００７】ディスクブレーキ装置２は、前記電動機本
体１の回転子軸８の端部に筒状のスプライン軸２１を同
心的に嵌着して繋ぎ、このスプライン軸２１にスプライ
ン継手２２を介して複数枚の回転ディスク２３を取付け
る一方、電動機本体１のフレーム５ｂの外端に一体に設
けたフランジ状支持部５ｃに固定フレーム２４を接合し
て突き合わせボルト等により締結固定し、この内部に複
数枚の固定ディスク２５を前記回転ディスク２３と一枚
ずつ交互に介在し合うように配設すると共に、これら各
固定ディスク２５を制動指令信号により回転ディスク２
３に圧接させる油圧プランジャ２６を設けた構成で、そ
の固定ディスク２５と回転ディスク２３との圧接摩擦力
により電動機本体１の回転子軸８の回転を抑制して車両
にブレーキをかける。In the disc brake device 2, a cylindrical spline shaft 21 is concentrically fitted and connected to an end portion of the rotor shaft 8 of the electric motor body 1, and a plurality of spline shafts 21 are connected to the spline shaft 21 via spline joints 22. While the rotating disk 23 is attached, the fixed frame 24 is joined to the flange-shaped support portion 5c integrally provided on the outer end of the frame 5b of the electric motor body 1 and fastened and fixed by butt bolts. The fixed disks 25 are arranged so as to interpose one by one with the rotary disks 23, and each of the fixed disks 25 is rotated by the braking command signal.
3 is provided with a hydraulic plunger 26 that is brought into pressure contact, and the pressure contact frictional force between the fixed disk 25 and the rotary disk 23 suppresses the rotation of the rotor shaft 8 of the electric motor body 1 to brake the vehicle.
【０００８】[0008]
【発明が解決しようとする課題】ところで、前述した構
成のディスクブレーキ装置付き誘導電動機では、ディス
クブレーキ装置２の制動時に、固定ディスク２５と回転
ディスク２３との圧接により摩擦熱が発生し、この熱が
フレーム２４内にこもったり、スプライン軸２１から電
動機本体１の回転子軸８に伝わり、このれにより該回転
子軸８が高温に加熱して熱変形を起こしたり、軸受部
（軸受ハウジング６ａ並びに軸受７ｂ）を加熱して軸受
グリースの劣化や軸受７ｂの寿命の低下を招き、電動機
本来の機能が発揮できなくなる問題がある。By the way, in the induction motor with the disc brake device having the above-described structure, frictional heat is generated by the pressure contact between the fixed disc 25 and the rotating disc 23 when the disc brake device 2 is braked. Stays in the frame 24, is transmitted from the spline shaft 21 to the rotor shaft 8 of the electric motor body 1, and this heats the rotor shaft 8 to a high temperature to cause thermal deformation, and the bearing portion (bearing housing 6a and bearing housing 6a and There is a problem that the bearing 7b) is heated to deteriorate the bearing grease and shorten the life of the bearing 7b, so that the original function of the motor cannot be exhibited.
【０００９】本発明は前記事情に鑑みなされ、その目的
とするところは、ディスクブレーキ装置の過大な発熱に
も耐え得る冷却構造をもつディスクブレーキ装置付き誘
導電動機を提供することにある。The present invention has been made in view of the above circumstances, and an object thereof is to provide an induction motor with a disc brake device having a cooling structure capable of withstanding excessive heat generation of the disc brake device.
【００１０】[0010]
【課題を解決するための手段】本発明は前記目的を達成
するために、電動機本体の端部に同軸的にディスクブレ
ーキ装置を連設した誘導電動機において、電動機本体内
に冷却風を導通するための冷却風導入口を設けると共
に、この冷却風導入口に導入される冷却風の一部を電動
機本体のディスクブレーキ装置側端の軸受部近傍に導く
バイパス路を設け、且つこのバイパス路と連通し当該軸
受部と面して回転子軸周りを取り囲む環状通風路を設
け、更にこの環状通風路と連通する状態で回転子軸内部
を通る抜ける通風孔を設けて構成したことを特徴とす
る。In order to achieve the above object, the present invention provides an induction motor in which a disc brake device is coaxially connected to the end of the motor body so that cooling air is conducted into the motor body. And a bypass passage for guiding a part of the cooling wind introduced into the cooling air introduction port to the vicinity of the bearing portion at the end of the electric motor body on the side of the disc brake device, and communicating with this bypass passage. It is characterized in that an annular ventilation passage is provided so as to face the bearing portion and surrounds the periphery of the rotor shaft, and further a ventilation hole that passes through the inside of the rotor shaft is provided so as to communicate with the annular ventilation passage.
【００１１】前記回転子軸内部の通風孔を通り抜けた冷
却風をディスクブレーキ装置内に導通する構成とするこ
とが望ましい。前記冷却風導入口に導入される冷却風の
一部をバイパス路途中から或いは該導入口から直接ディ
スクブレーキ装置内に導通する分岐孔を設けることが好
ましい。It is desirable that the cooling air passing through the ventilation holes inside the rotor shaft be conducted into the disc brake device. It is preferable to provide a branch hole that allows a part of the cooling air introduced into the cooling air introduction port to be conducted into the disc brake device from the middle of the bypass passage or directly from the introduction port.
【００１２】[0012]
【作用】前記構成のディスクブレーキ装置付き誘導電動
機によれば、冷却風導入口から導入される冷却風が電動
機本体内に通風して、該本体内のステータやロータの発
熱部を冷却する一方、前記冷却風導入口に導入される冷
却風の一部がバイパス路を介して、電動機本体内の発熱
部の熱影響を殆ど受けずに、電動機本体のディスクブレ
ーキ装置側端の軸受部近傍に導から、その軸受部と面し
て回転子軸周りを取り囲む環状通風路を通り、更に回転
子軸内部の通風孔を通り抜けるようになるので、その冷
却風で電動機本体のディスクブレーキ装置側端の軸受部
を効率良く冷却すると共に、回転子軸を内部から効果的
に冷却できて、制動時、ディスクブレーキ装置からの過
大な発熱に耐え得る。即ち、ディスクブレーキ装置が電
動機本体に連設されていても、回転子軸の加熱・変形
や、軸受部の軸受グリース劣化・寿命短縮などを効果的
に抑制できて、電動機本来の機能を発揮できるようにな
る。According to the induction motor with the disc brake device having the above-described structure, the cooling air introduced from the cooling air introduction port flows into the main body of the electric motor to cool the heat generating portions of the stator and the rotor in the main body. A part of the cooling air introduced into the cooling air introduction port is introduced into the vicinity of the bearing portion at the end of the disc brake device side of the electric motor body through the bypass passage while being almost unaffected by the heat of the heat generating portion in the electric motor body. Through the annular ventilation passage that surrounds the rotor shaft and faces the bearing portion, and then through the ventilation holes inside the rotor shaft, the cooling air causes the bearing on the end of the disc brake device of the motor main body. The parts can be cooled efficiently, and the rotor shaft can be effectively cooled from the inside, so that during braking, excessive heat generation from the disc brake device can be endured. That is, even if the disc brake device is connected to the electric motor main body, heating and deformation of the rotor shaft, deterioration of bearing grease in the bearing portion, shortening of life, etc. can be effectively suppressed, and the original function of the electric motor can be exerted. Like
【００１３】また、前記回転子軸内部の通風孔を通り抜
けた冷却風をディスクブレーキ装置内に導通したり、前
記冷却風導入口に導入される冷却風の一部をバイパス路
途中から分岐孔を介し或いは該導入口から直接分岐孔を
介してディスクブレーキ装置内に導通することで、その
ディスクブレーキ装置内部の冷却も効果的に図れて、更
に冷却性能がアップするようになる。Further, the cooling air that has passed through the ventilation holes inside the rotor shaft is conducted to the inside of the disc brake device, and a part of the cooling air that is introduced into the cooling air introduction port is branched from the middle of the bypass passage. Through or through the introduction port directly to the inside of the disc brake device through the branch hole, the inside of the disc brake device can be effectively cooled, and the cooling performance is further improved.
【００１４】[0014]
【実施例】以下、本発明の一実施例を図１及び図２によ
り説明する。なお、図１は本発明のディスクブレーキ装
置付き誘導電動機の略下半部を省略した縦断面図で、図
２は図１のＸ−Ｘ線に沿う横断面図である。ここで、前
述した図４の構成と重複するものには同一符号を付して
説明の簡略化を図る。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. 1 is a vertical cross-sectional view of the induction motor with a disc brake device according to the present invention in which a substantially lower half portion is omitted, and FIG. 2 is a cross-sectional view taken along line XX of FIG. Here, parts that are the same as those in FIG. 4 described above are given the same reference numerals to simplify the description.
【００１５】まず、電動機本体１とディスクブレーキ装
置２は基本的には図４に示したものと同様であり、その
電動機本体１の端部に同軸的にディスクブレーキ装置２
が連設されている。つまり、電動機本体１の回転子軸８
の端部に筒状のスプライン軸２１を同心的に嵌着してス
プライン継手２２を介し複数枚の回転ディスク２３を支
持していると共に、電動機本体１のフレーム５ｂの外端
フランジ状支持部５ｃに固定フレーム２４を突き合わせ
固定し、この内部に複数枚の固定ディスク２５を前記回
転ディスク２３と一枚ずつ交互に介在し合うように配設
すると共に、これら各固定ディスク２５を制動指令信号
により回転ディスク２３に圧接させる油圧プランジャ２
６を設けた構成である。First, the electric motor body 1 and the disc brake device 2 are basically the same as those shown in FIG. 4, and the disc brake device 2 is coaxial with the end portion of the electric motor body 1.
Are lined up. That is, the rotor shaft 8 of the motor body 1
A cylindrical spline shaft 21 is concentrically fitted to the end portion of the motor to support a plurality of rotating disks 23 via a spline joint 22, and an outer end flange-shaped support portion 5c of the frame 5b of the electric motor body 1 is supported. The fixed frame 24 is butt-fixed to and fixed to each other, and a plurality of fixed disks 25 are disposed inside the fixed frame 24 so as to interpose one by one with the rotary disk 23, and each fixed disk 25 is rotated by a braking command signal. Hydraulic plunger 2 to be pressed against the disk 23
6 is provided.
【００１６】こうしたディスクブレーキ装置付き誘導電
動機において、電動機本体１の反ディスクブレーキ側の
フレーム５ａの端部に冷却風導入口１２が突設され、こ
れに車体側送風機３０からフレキシブルダクト３１を介
して冷却風を強制的に導入できるようになっている。In such an induction motor with a disc brake device, a cooling air introduction port 12 is projectingly provided at the end of the frame 5a on the side opposite to the disc brake of the electric motor main body 1, and the cooling air introduction port 12 is provided from the air blower 30 on the vehicle body side through the flexible duct 31. Cooling air can be forcibly introduced.
【００１７】その冷却風導入口１２は、内部が仕切壁３
３により略２対１の割合でＡ，Ｂに区画されている。そ
の広い区画Ａに導入された冷却風は矢印で示す如く電動
機本体１内の一端側に入り、そこから固定子鉄心３と回
転子鉄心９との間のギャップＧ並びに該回転子鉄心９に
貫通した複数の通風孔９ａを通って機内を冷却しながら
他端側に通風し、更にフレーム５ｂに破線で示す如く形
成した連通穴３４を介しディスクブレーキ装置２内の外
周寄りに通風して、その固定フレーム２４に形成した排
気口３５から機外に流出するようになっている。The cooling air inlet 12 has an internal partition wall 3
It is divided into A and B at a ratio of approximately 2 to 1 by 3. The cooling air introduced into the wide section A enters one end side of the electric motor body 1 as shown by the arrow, and penetrates the gap G between the stator core 3 and the rotor core 9 and the rotor core 9 from there. While cooling the inside of the machine through the plurality of ventilation holes 9a, it is ventilated to the other end side, and is further ventilated toward the outer periphery in the disc brake device 2 through the communication hole 34 formed in the frame 5b as shown by the broken line. The exhaust port 35 formed in the fixed frame 24 is adapted to flow out of the machine.
【００１８】一方、冷却風導入口１２に導入される冷却
風の一部が通る区画Ｂには、バイパス路３６が接続され
ている。このバイパス路３６は、電動機本体１の補強を
兼ねて該本体１の上面部に長手方向に亘って固着した断
面逆Ｕ字形のバイパスダクト３７と、この先端部に連通
してフレーム５ｂに穿設した連通穴３８と、この内端に
上端を接続し且つフレーム５ｂ端板内面から及び軸受ハ
ウジング６ｂ内面に縦に亘り固着した断面コ字形のバイ
パスダクト３９とで構成されている。このバイパス路３
６により冷却風導入口１２からの冷却風の一部を、電動
機本体１内の発熱部の影響を受けずに、ディスクブレー
キ装置側端の軸受部であるハウジング６ｂ近傍に導ける
ようになっている。On the other hand, a bypass passage 36 is connected to the section B through which a part of the cooling air introduced into the cooling air inlet 12 passes. The bypass passage 36 has a reverse U-shaped cross-section, which is fixed to the upper surface of the electric motor body 1 in the longitudinal direction for the purpose of reinforcing the electric motor main body 1. The bypass duct 37 communicates with the tip portion of the bypass passage 36 and is drilled in the frame 5b. And a bypass duct 39 having a U-shaped cross section, which has an upper end connected to the inner end and is vertically fixed to the inner surface of the end plate of the frame 5b and the inner surface of the bearing housing 6b. This bypass 3
6 allows a part of the cooling air from the cooling air inlet 12 to be guided to the vicinity of the housing 6b, which is a bearing portion at the end of the disc brake device, without being affected by the heat generating portion in the motor body 1. .
【００１９】このバイパス路３６のバイパスダクト３９
下端に連通して環状通風路４０が設けられている。この
環状通風路４０は、断面Ｌ形環状プレートを軸受部であ
るハウジング６ｂに取付けることで、その軸受ハウジン
グ６ｂに面して回転子軸８周りを取り囲むように構成さ
れている。Bypass duct 39 of this bypass path 36
An annular ventilation passage 40 is provided so as to communicate with the lower end. The annular ventilation passage 40 is configured to surround the rotor shaft 8 by facing the bearing housing 6b by attaching an annular plate having an L-shaped cross section to the housing 6b which is a bearing portion.
【００２０】また、前記回転子軸８内部に複数の通風孔
４１が形成されている。これら各通風孔４１は、この内
端口４１ａがＬ字形に屈曲して前記環状通風路４０と連
通する状態に開口され、外端側は該回転子軸８のディス
クブレーキ装置側端面に開口されている。つまり、バイ
パス路３６から送り込まれる冷却風が環状通風路４０内
を介して回転子軸８内部の通風孔４１内を通り抜けるよ
うになっている。A plurality of ventilation holes 41 are formed inside the rotor shaft 8. Each of the ventilation holes 41 is opened in such a manner that the inner end opening 41a is bent in an L-shape and communicates with the annular ventilation passage 40, and the outer end side is opened to the disc brake device side end surface of the rotor shaft 8. There is. That is, the cooling air sent from the bypass passage 36 passes through the air passage 41 inside the rotor shaft 8 through the annular air passage 40.
【００２１】なお、その回転子軸８内の通風孔４１を通
り抜けた冷却風は、そのまま筒状のスプライン軸２１内
空間を通って機外に排出させても良いが、この実施例で
は、該スプライン軸２１内の空間２１ａを途中で塞ぐ遮
蔽板４２が設けられていると共に、その空間２１ａ内か
ら冷却風をディスクブレーキ装置２内のスプライン継手
２２近傍に導通する通風口４３がスプライン軸２１に形
成されている。The cooling air passing through the ventilation holes 41 in the rotor shaft 8 may be discharged to the outside of the machine through the space inside the cylindrical spline shaft 21 as it is, but in this embodiment, A shield plate 42 for closing the space 21a in the spline shaft 21 is provided, and a ventilation port 43 for conducting cooling air from the space 21a to the vicinity of the spline joint 22 in the disc brake device 2 is provided in the spline shaft 21. Has been formed.
【００２２】また、前記バイパス路３９を介し導入され
て来る冷却風の一部を、その途中で、即ち前記環状通風
路４０に入る手前で、ディスクブレーキ装置２内に導通
する分岐孔４４が前記軸受ハウジング６ｂに形成されて
いる。Further, a part of the cooling air introduced through the bypass 39 is introduced into the disc brake device 2 in the middle thereof, that is, before entering the annular ventilation passage 40. It is formed on the bearing housing 6b.
【００２３】こうした構成のディスクブレーキ装置付き
誘導電動機では、冷却風導入口１２の区画Ａから導入さ
れる冷却風が電動機本体１内の一端側に入り、そこから
固定子鉄心３と回転子鉄心９との間のギャップＧ並びに
該回転子鉄心９に貫通した複数の通風孔９ａを通って機
内を冷却しながら他端側に通風し、更にフレーム５ｂの
連通穴３４を介しディスクブレーキ装置２内の外周寄り
に通風して、その固定フレーム２４の排気口３５から機
外に流出する流出するようになる。これにて電動機本体
１内のステータやロータ並びに軸受部（軸受ハウジング
６ａや軸受７ａ）等の発熱部を効率良く冷却する。In the induction motor with a disc brake device having such a configuration, the cooling air introduced from the section A of the cooling air introduction port 12 enters one end side of the electric motor main body 1, and from there, the stator core 3 and the rotor core 9 Through the gap G between the rotor core 9 and a plurality of ventilation holes 9a penetrating the rotor core 9 to ventilate to the other end while cooling the inside of the machine, and further through the communication hole 34 of the frame 5b to the inside of the disc brake device 2. The air is ventilated toward the outer periphery and flows out from the exhaust port 35 of the fixed frame 24 to the outside of the machine. As a result, the stator, rotor, bearings (bearing housing 6a, bearing 7a), and other heat-generating portions in the motor body 1 are efficiently cooled.
【００２４】一方、前記冷却風導入口１２の区画Ｂに導
入される冷却風はバイパス路３６を介して、電動機本体
１内の発熱部の熱影響を殆ど受けずに、低温のまま電動
機本体１のディスクブレーキ装置側端の軸受部である軸
受ハウジング６ｂ近傍に導通され、そこから該軸受ハウ
ジング６ｂと面して回転子軸８周りを取り囲む環状通風
路４０を通って、更に回転子軸８内部の複数の通風孔４
１を通り抜けるようになる。On the other hand, the cooling air introduced into the section B of the cooling air introduction port 12 is hardly affected by the heat of the heat generating portion in the motor body 1 via the bypass passage 36, and the motor body 1 is kept at a low temperature. Of the disk brake device on the side of the bearing housing 6b, which is electrically connected to the bearing housing 6b, passes through the annular ventilation passage 40 that faces the bearing housing 6b and surrounds the rotor shaft 8, and further inside the rotor shaft 8. Multiple ventilation holes 4
You will pass through 1.
【００２５】これにて、環状通風路４０内を通る冷却風
が電動機本体１のディスクブレーキ装置側端の軸受部で
ある軸受ハウジング６ｂ及びその内部の軸受７ｂを効率
良く冷却すると共に、回転子軸８内の通風孔４１を通る
冷却風が該回転子軸８を内部から効果的に冷却できて、
制動時、ディスクブレーキ装置２の回転ディスク２３と
固定ディスク２５の摩擦による過大な発熱に耐え得る。
即ち、ディスクブレーキ装置２が電動機本体１に連設さ
れていても、回転子軸８の加熱・変形や、軸受部の軸受
グリース劣化・寿命短縮などを効果的に抑制できて、電
動機本来の機能を発揮できるようになる。As a result, the cooling air passing through the annular ventilation passage 40 efficiently cools the bearing housing 6b which is the bearing portion of the end of the electric motor main body 1 on the side of the disc brake device and the bearing 7b inside the bearing housing 6b, and also the rotor shaft. The cooling air passing through the ventilation holes 41 in 8 can effectively cool the rotor shaft 8 from the inside,
During braking, it is possible to endure excessive heat generation due to friction between the rotary disc 23 and the fixed disc 25 of the disc brake device 2.
That is, even if the disc brake device 2 is connected to the electric motor main body 1, it is possible to effectively suppress the heating and deformation of the rotor shaft 8, the deterioration of the bearing grease of the bearing portion, and the shortening of the service life. Will be able to demonstrate.
【００２６】また、前記回転子軸８内部の通風孔４１を
通り抜けた冷却風がスプライン軸２１内の空間２１ａで
遮蔽板４２に遮蔽されて通風口４３よりディスクブレー
キ装置２内のスプライン継手２２近傍に導通されてか
ら、そのディスクブレーキ装置２内を通って固定フレー
ム２４の排気口３５から機外に流出するようになる。こ
れにてスプライン継手２２を効率良く冷却し、更にディ
スクブレーキ装置２内も冷却するようになる。Further, the cooling air passing through the ventilation holes 41 inside the rotor shaft 8 is shielded by the shielding plate 42 in the space 21a inside the spline shaft 21, and the vicinity of the spline joint 22 inside the disc brake device 2 from the ventilation port 43. Then, after passing through the disc brake device 2, it flows out from the exhaust port 35 of the fixed frame 24 to the outside of the machine. As a result, the spline joint 22 is efficiently cooled, and the inside of the disc brake device 2 is also cooled.
【００２７】更にまた、前記バイパス路３９を介し導入
されて来る低温の冷却風の一部が、その途中の分岐孔４
４からディスクブレーキ装置２内に導通し、そのディス
クブレーキ装置２内部の冷却を効果的に図るようにな
る。Furthermore, a part of the low-temperature cooling air introduced through the bypass 39 is partly formed in the branch hole 4 in the middle thereof.
4, the disc brake device 2 is electrically connected and the inside of the disc brake device 2 is effectively cooled.
【００２８】次に、本発明の他の実施例を図３により説
明する。この実施例は基本的には前述のものと同様であ
るが、ここでは冷却風導入口１２を電動機本体１のディ
スクブレーキ装置側のフレーム５ｂ外端のフランジ状支
持部５ｃに隣接して形成している。Next, another embodiment of the present invention will be described with reference to FIG. This embodiment is basically the same as the one described above, but here, the cooling air inlet 12 is formed adjacent to the flange-shaped support portion 5c at the outer end of the frame 5b on the disc brake device side of the electric motor body 1. ing.
【００２９】この場合、冷却風導入口１２に導入された
冷却風は、前述とは逆に、電動機本体１内の他端側に入
り、そこから固定子鉄心３と回転子鉄心９との間のギャ
ップＧ並びに該回転子鉄心９に貫通した複数の通風孔９
ａを通って機内を冷却しながら一端側に通風し、その他
端側のフレーム５ａに形成した排気口１３から機外に流
出するようになる。In this case, contrary to the above, the cooling air introduced into the cooling air introduction port 12 enters the other end side of the electric motor main body 1, and from there, between the stator core 3 and the rotor core 9. Gaps G and a plurality of ventilation holes 9 penetrating the rotor core 9
While cooling the inside of the machine through “a”, the air is ventilated to one end side and flows out of the machine from the exhaust port 13 formed in the frame 5a on the other end side.
【００３０】こうした電動機本体１の冷却風導入口１２
内の真下に上端を開口してバイパス路３６を構成する断
面コ字形のバイパスダクト３９がフレーム５ｂ端板内面
から及び軸受ハウジング６ｂ内面に縦に亘り取り付けら
れている。これにて冷却風導入口１２に導入される冷却
風の一部を電動機本体１内の発熱部の影響を受けずに、
ディスクブレーキ装置側端の軸受部であるハウジング６
ｂ近傍に導けるようになっている。Cooling air inlet 12 of the motor body 1
A bypass duct 39 having a U-shaped cross section and having an upper end opened immediately below inside and forming a bypass passage 36 is vertically mounted from the inner surface of the end plate of the frame 5b and to the inner surface of the bearing housing 6b. As a result, a part of the cooling air introduced into the cooling air introduction port 12 is not affected by the heat generating portion in the motor body 1,
Housing 6 that is a bearing portion at the end of the disc brake device
It can be guided to the vicinity of b.
【００３１】なお、このバイパス路３６のバイパスダク
ト３９下端には前述同様に環状通風路４０が設けられ、
軸受けハウジング６ｂ及び軸受け７ｂを効率良く冷却す
るようになっていると共に、この環状通風路４０内に連
通する状態に複数の通風孔４１が回転子軸８内部に形成
されて、その回転子軸８を内部から効果敵に冷却するよ
うになっている。更に前述同様に、通風孔４０が開口す
るスプライン軸２１内の空間２１ａに遮蔽板４２が設け
られていると共に、そのスプライン軸２１に通風口４３
が形成されて、スプライン継手２２を効率良く冷却し、
更にディスクブレーキ装置２内も冷却するようになって
いる。An annular ventilation passage 40 is provided at the lower end of the bypass duct 39 of the bypass passage 36 as described above.
The bearing housing 6b and the bearing 7b are cooled efficiently, and a plurality of ventilation holes 41 are formed inside the rotor shaft 8 so as to communicate with the annular ventilation passage 40. The effect is to cool the enemy from inside. Further, similarly to the above, the shielding plate 42 is provided in the space 21a in the spline shaft 21 where the ventilation hole 40 opens, and the ventilation port 43 is provided in the spline shaft 21.
Is formed to efficiently cool the spline joint 22,
Further, the inside of the disc brake device 2 is also cooled.
【００３２】更にまた、前述同様に、前記バイパス路３
９を介し導入されて来る低温の冷却風の一部を、その途
中の分岐孔４４からディスクブレーキ装置２内に導通
し、そのディスクブレーキ装置２内部の冷却を効果的に
図るようになっていると共に、前記冷却風導入口１２の
内側部にディスクブレーキ装置２内へ連通する分岐孔４
５が形成され、ここからも冷却風導入口１２に導入され
る冷却風の一部が直接ディスクブレーキ装置２内に導通
されて、そのディスクブレーキ装置２内の冷却効果を更
に高め得るようになる。Furthermore, as described above, the bypass 3
A part of the low-temperature cooling air introduced via 9 is conducted into the disc brake device 2 through the branch hole 44 in the middle thereof, and the inside of the disc brake device 2 is effectively cooled. At the same time, a branch hole 4 communicating with the inside of the cooling air inlet 12 into the disc brake device 2 is provided.
5, a part of the cooling air introduced into the cooling air introduction port 12 is directly conducted into the disc brake device 2, and the cooling effect in the disc brake device 2 can be further enhanced. .
【００３３】この図３に示した実施例では、先の実施例
と同等の冷却効果が得られる上に、バイパス路３６が短
くて済み、即ち図１に示したバイパスダクト３７を廃止
できて全体の小形化及び簡素化が図るようになる。In the embodiment shown in FIG. 3, the same cooling effect as that of the previous embodiment is obtained, and the bypass passage 36 is short, that is, the bypass duct 37 shown in FIG. Can be made smaller and simpler.
【００３４】[0034]
【発明の効果】本発明のディスクブレーキ装置付き誘導
電動機は、前述した如く構成したので、冷却風導入口か
ら導入される冷却風を電動機本体内に通風して、該本体
内のステータやロータの発熱部を冷却できる一方、前記
冷却風導入口に導入される冷却風の一部をバイパス路を
介して、電動機本体内の発熱部の熱影響を殆ど受けず
に、低温のまま電動機本体のディスクブレーキ装置側端
の軸受部近傍の環状通風路に導通し、更に回転子軸内部
の通風孔に通り抜けさせことができ、その冷却風で電動
機本体のディスクブレーキ装置側端の軸受部を効率良く
冷却すると共に、回転子軸を内部から効果的に冷却でき
て、制動時、ディスクブレーキ装置からの過大な発熱に
耐え得、回転子軸の加熱・変形や、軸受部の軸受グリー
ス劣化・寿命短縮などを効果的に抑制できて、電動機本
来の機能を発揮できる。Since the induction motor with the disc brake device of the present invention is constructed as described above, the cooling air introduced from the cooling air introduction port is passed through the inside of the electric motor main body, and the stator and rotor inside the main body are cooled. While the heat generating part can be cooled, a part of the cooling air introduced into the cooling air introduction port is not affected by the heat of the heat generating part in the motor main body through the bypass passage, and the disk of the motor main body remains at a low temperature. It connects to the annular ventilation passage near the bearing on the end of the brake device and can pass through the ventilation holes inside the rotor shaft, and the cooling air efficiently cools the bearing on the end of the disc brake device of the motor body. At the same time, the rotor shaft can be cooled effectively from the inside, and it can withstand excessive heat generation from the disc brake device during braking, preventing heating and deformation of the rotor shaft, deterioration of bearing grease in the bearing, and shortening of service life. A and can be effectively suppressed, it can exert an electric motor original function.
【図面の簡単な説明】[Brief description of drawings]
【図１】本発明のディスクブレーキ装置付き誘導電動機
の一実施例を示す略下半部を省略した縦断面図。FIG. 1 is a longitudinal sectional view showing an embodiment of an induction motor with a disc brake device of the present invention, in which a substantially lower half portion is omitted.
【図２】図１のＸ−Ｘ線に沿う横断面図。FIG. 2 is a cross-sectional view taken along the line XX of FIG.
【図３】本発明のディスクブレーキ装置付き誘導電動機
の他の実施例を示す略下半部を省略した縦断面図。FIG. 3 is a vertical cross-sectional view showing another embodiment of the induction motor with a disc brake device of the present invention, in which a substantially lower half portion is omitted.
【図４】従来のディスクブレーキ装置付き誘導電動機を
示す略下半部を省略した縦断面図。FIG. 4 is a vertical cross-sectional view showing a conventional induction motor with a disc brake device, omitting a substantially lower half portion.
１…電動機本体、２…ディスクブレーキ装置、６ｂ…軸
受ハウジング、８…回転子軸、１２…冷却風導入口、２
１…スプライン軸、２１ａ…空間、２２…スプライン継
手、３６…バイパス路、４０…環状通風路、４１…通風
孔、４２…遮蔽板、４３…通風口、４４，４５…分岐
孔。DESCRIPTION OF SYMBOLS 1 ... Electric motor main body, 2 ... Disc brake device, 6b ... Bearing housing, 8 ... Rotor shaft, 12 ... Cooling air inlet, 2
1 ... Spline shaft, 21a ... Space, 22 ... Spline joint, 36 ... Bypass passage, 40 ... Annular ventilation passage, 41 ... Ventilation hole, 42 ... Shielding plate, 43 ... Ventilation port, 44, 45 ... Branch hole.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 川路 俊一 東京都府中市東芝町１番地 株式会社東芝 府中工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shunichi Kawaji No. 1 Toshiba-cho, Fuchu-shi, Tokyo Toshiba Corporation Fuchu factory
Claims (3)
レーキ装置を連設した誘導電動機において、電動機本体
内に冷却風を導通するための冷却風導入口を設けると共
に、この冷却風導入口に導入される冷却風の一部を電動
機本体のディスクブレーキ装置側端の軸受部近傍に導く
バイパス路を設け、且つこのバイパス路と連通し当該軸
受部と面して回転子軸周りを取り囲む環状通風路を設
け、更にこの環状通風路と連通する状態で回転子軸内部
を通る抜ける通風孔を設けて構成したことを特徴とする
ディスクブレーキ装置付き誘導電動機。1. An induction motor in which a disc brake device is coaxially connected to an end portion of an electric motor body, wherein a cooling air introduction port for conducting cooling air is provided in the electric motor body, and the cooling air introduction port is provided in the cooling air introduction port. A bypass passage is provided to guide a part of the introduced cooling air to the vicinity of the bearing portion at the end of the electric motor body on the side of the disc brake device, and an annular ventilation that communicates with the bypass passage and faces the bearing portion and surrounds the rotor shaft. An induction motor with a disc brake device, characterized in that a passage is provided, and further, a ventilation hole that passes through the inside of the rotor shaft in a state of communicating with the annular ventilation passage is provided.
風をディスクブレーキ装置内に導通する構成としたこと
を特徴とする請求項１記載のディスクブレーキ装置付き
誘導電動機。2. The induction motor with a disc brake device according to claim 1, wherein the cooling air passing through the ventilation holes in the rotor shaft is conducted into the disc brake device.
をバイパス路途中から或いは該導入口から直接ディスク
ブレーキ装置内に導通する分岐孔を設けたことを特徴と
する請求項１又は２記載のディスクブレーキ装置付き誘
導電動機。3. A branch hole is provided for connecting a part of the cooling air introduced into the cooling air introduction port to the inside of the disc brake device directly from the midway of the bypass or from the introduction port. An induction motor with a disc brake device as described in 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11017693A JP3202407B2 (en) | 1993-05-12 | 1993-05-12 | Induction motor with disc brake device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11017693A JP3202407B2 (en) | 1993-05-12 | 1993-05-12 | Induction motor with disc brake device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06327189A true JPH06327189A (en) | 1994-11-25 |
| JP3202407B2 JP3202407B2 (en) | 2001-08-27 |
Family
ID=14528982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11017693A Expired - Fee Related JP3202407B2 (en) | 1993-05-12 | 1993-05-12 | Induction motor with disc brake device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3202407B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011063643A (en) * | 2009-09-15 | 2011-03-31 | Jfe Steel Corp | Traveling control method of traveling machine for coke furnace |
| CN102844969A (en) * | 2010-06-08 | 2012-12-26 | 爱信艾达株式会社 | Vehicle drive system |
-
1993
- 1993-05-12 JP JP11017693A patent/JP3202407B2/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011063643A (en) * | 2009-09-15 | 2011-03-31 | Jfe Steel Corp | Traveling control method of traveling machine for coke furnace |
| CN102844969A (en) * | 2010-06-08 | 2012-12-26 | 爱信艾达株式会社 | Vehicle drive system |
| CN102844969B (en) * | 2010-06-08 | 2014-12-10 | 爱信艾达株式会社 | Vehicle drive system |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3202407B2 (en) | 2001-08-27 |
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