JPH04207914A - Attraction type eddy current rail brake - Google Patents
Attraction type eddy current rail brakeInfo
- Publication number
- JPH04207914A JPH04207914A JP33058390A JP33058390A JPH04207914A JP H04207914 A JPH04207914 A JP H04207914A JP 33058390 A JP33058390 A JP 33058390A JP 33058390 A JP33058390 A JP 33058390A JP H04207914 A JPH04207914 A JP H04207914A
- Authority
- JP
- Japan
- Prior art keywords
- rail
- electromagnetic coil
- force
- eddy current
- brake
- 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.)
- Pending
Links
- 239000000463 material Substances 0.000 claims description 8
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 239000011230 binding agent Substances 0.000 claims 1
- 239000002783 friction material Substances 0.000 claims 1
- 230000001846 repelling effect Effects 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 description 4
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000002562 thickening agent Substances 0.000 description 1
Landscapes
- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野〉
本発明は、高速鉄道車両の非常ブレーキとして、現用の
ブレーキに付加して動作させる吸着型渦電流レールブレ
ーキに関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to an adsorption-type eddy current rail brake that is operated as an emergency brake for high-speed railway vehicles in addition to the existing brakes.
（従来の技術）
従来の、電磁コイルを用いたレールブレーキには、電磁
コイルの磁極がレールの長手方向に平行に位置し、電磁
コイルに直流電流を流すと、その磁極がレールに吸着し
、その吸着力による電磁コイルの磁極とレールの摩擦力
をブレーキ力とする電磁吸着型と、電磁コイルの磁極は
レール長手方向にＮ極とＳ極が交互になるように配置さ
れ、レールと電磁コイルは接触せずに常に一定のギヤッ
ブを保つように位置し、１ｉ［コイルが通過する際レー
キ′力とする渦電流型がある。(Prior art) In conventional rail brakes using electromagnetic coils, the magnetic poles of the electromagnetic coil are located parallel to the longitudinal direction of the rail, and when a direct current is passed through the electromagnetic coil, the magnetic poles are attracted to the rail. The electromagnetic attraction type uses the frictional force between the magnetic poles of the electromagnetic coil and the rail due to the attraction force as a braking force, and the magnetic poles of the electromagnetic coil are arranged so that N and S poles alternate in the longitudinal direction of the rail, and the rail and electromagnetic coil There is an eddy current type in which the coils are positioned so as to maintain a constant gear without contacting each other, and generate a rake force when the coil passes through.
（発明が解決しようとする課題）
上記従来の電磁コイルを用いたレールブレーキのうち、
Ｎ極とＳ極をレール長手方向に平行に配置し、レールと
゛接触させてその摩擦力をブレーキ力とする電磁吸着型
では、磁極間のギャップがレール中央部となるため、レ
ールと磁極との有効接触面積が小さく、また接触面はレ
ール頭部の両サイドとなるため、台車の、横方向動揺に
よる影響で磁極とレールが接触している有効接触面積が
不安定になり、それに伴い摩−力も不安定で、したがっ
て、低ブレーキ力である。(Problem to be solved by the invention) Among the above-mentioned conventional rail brakes using electromagnetic coils,
In the electromagnetic attraction type, in which the N and S poles are arranged parallel to the longitudinal direction of the rail, brought into contact with the rail, and the frictional force is used as a braking force, the gap between the magnetic poles is at the center of the rail, so the contact between the rail and the magnetic poles is Since the effective contact area is small and the contact surfaces are on both sides of the rail head, the effective contact area where the magnetic poles and the rail are in contact becomes unstable due to the influence of the lateral movement of the bogie, which causes wear. The force is also unstable and therefore the braking force is low.
また、磁極の性質上、材質の制約を受けるためレールと
の接触による車輪とレール間の粘着改善を有効に行えな
かった。Furthermore, due to the nature of the magnetic poles, there are restrictions on the material, so it has not been possible to effectively improve the adhesion between the wheels and the rails due to contact with the rails.
一方、レール長手方向に磁極のＮ極とＳ極を交互に配置
して、レールと接触させずに、電磁コイルが通過する際
にレールに生ずる渦電流による磁力の反発力をブレーキ
力とする渦′＠流型では、レールに渦電流が発生する際
、レールが発熱し、し−ルが張り出す危険がある。加え
て、大電流を必要とするので、電車等の主回路電流をそ
のまま１用しなければならず、電気車以外の車両や架線
停電時の非常用ブレーキとしては使えなかった。On the other hand, by arranging the N and S poles of the magnetic poles alternately in the longitudinal direction of the rail so that they do not come in contact with the rail, a vortex is created in which the repulsive force of the magnetic force due to the eddy current generated on the rail when the electromagnetic coil passes is used as a braking force. In the '@flow type, when an eddy current is generated in the rail, there is a risk that the rail will generate heat and the rail will overhang. In addition, since it requires a large current, the main circuit current of trains, etc. must be used directly, and it cannot be used as an emergency brake for vehicles other than electric cars or in the event of a power outage.
本発明は、上記の従来の電磁コイルを用いた高速用レー
ルブレーキにｔられる間順点に着目してなされたもので
、比較的低電流で動作し、ｆｉ′Ｗｉ流による磁力の反
発力と、レールと磁極が接触することで得られる摩擦力
の両方の力をブレーキ力とすることによって、上記電磁
吸着型による不安定な低ブレーキ力の改善し、また上記
渦電７流型によるレール発熱を抑制し、さらにレールと
摩擦することで車輪・レール間の増粘着効果がある高ブ
レーキの高速用レールブレーキ装置を提供することを目
的としている。−□
（課題を解法するための手段）
上記の目的を達成するため本発明は、電磁コイルの磁極
とレールは接触する構造とし、磁極はレール長手方向に
Ｎ極とＳ極とが交互に配置された構成となっている。The present invention was made by focusing on the high-speed rail brake using the above-mentioned conventional electromagnetic coil, and operates with a relatively low current, and is effective against the repulsive force of the magnetic force due to the fi'Wi flow. By using both the frictional force obtained when the rail and the magnetic pole come into contact as braking force, the unstable low braking force caused by the electromagnetic adsorption type is improved, and the rail heat generated by the eddy current type is improved. The purpose of the present invention is to provide a high-speed rail braking device with high braking capacity that suppresses the friction between the wheels and the rails, and has the effect of increasing adhesion between the wheels and the rails through friction with the rails. -□ (Means for solving the problem) In order to achieve the above object, the present invention has a structure in which the magnetic poles of the electromagnetic coil and the rail are in contact with each other, and the magnetic poles are arranged alternately in the longitudinal direction of the rail. The configuration is as follows.
また、上記電磁コイルに流す直流電流は比較的小電流で
すむようにしたことを特徴としている。Further, the electromagnetic coil is characterized in that a relatively small DC current is required to flow through the electromagnetic coil.
さらに、磁極間に車輪・レール間の粘着改善に適した材
質を取り付けて粘着改善を行えることを特徴としている
。Another feature is that adhesion can be improved by attaching a material suitable for improving adhesion between wheels and rails between the magnetic poles.
（作用）
上記のように構成した本発明によれば、電磁コイルの磁
極とレールの摩擦力と、電磁コイル通過の際レールに生
じる渦電流による磁力の反発力の両方がブレーキ力とな
り、レールの発熱も小さく目的のブレーキ力を得ること
ができる。(Function) According to the present invention configured as described above, both the frictional force between the magnetic pole of the electromagnetic coil and the rail and the repulsive force of the magnetic force due to the eddy current generated in the rail when the electromagnetic coil passes act as a braking force, and the rail The heat generated is small and the desired braking force can be obtained.
また、磁極間に増粘着材により、車輪・レール間の増粘
着効果を得ることができる。Furthermore, by using an adhesive material between the magnetic poles, it is possible to obtain an adhesive effect between the wheels and the rails.
（実施例）
以下本発明の一実施例について図に基づき説明する。
−第１図は台車
の軸間に本発明の高速用レールブレーキを配置した一実
施例を示すものであり、第２図は電磁コイル１の拡大図
である。また、第３図は第２図に示す電磁コイルを下か
ら見た図である。(Example) An example of the present invention will be described below based on the drawings.
- FIG. 1 shows an embodiment in which the high-speed rail brake of the present invention is arranged between the axes of a bogie, and FIG. 2 is an enlarged view of the electromagnetic coil 1. Moreover, FIG. 3 is a diagram of the electromagnetic coil shown in FIG. 2 viewed from below.
電磁コイル１は、例えば空気シリンダ２を介して台車枠
３に装架され、車両通常走行時は空気シリンダ２に空気
を込めて、レールに接触しないように持ち上がった状態
にあり、車両の非常ブレーキ指令により電磁コイル１に
直流電流を流し、同時に空気シリンダ２から例えば電磁
弁を用いて瞬時に空気を吐き出し、電磁コイル１が゛レ
ール４に接触し、交着するような構造となっている。The electromagnetic coil 1 is mounted on a bogie frame 3 via an air cylinder 2, for example, and when the vehicle is normally running, the air cylinder 2 is filled with air and is raised so as not to contact the rails, and the emergency brake of the vehicle is activated. The structure is such that a direct current is passed through the electromagnetic coil 1 in response to a command, and at the same time, air is instantly discharged from the air cylinder 2 using, for example, an electromagnetic valve, so that the electromagnetic coil 1 contacts and intersects with the rail 4.
電磁コイル１の内部は、第２図と第３図のようになって
おり、コイル５及び５ａ−ｇが鉄芯６及び６ａ・〜゛ｇ
を囲み、鉄芯６及び６ａ−’ｇ衣表面摺動部７及び７ａ
−ｇを取り付はレールと接触する磁極となる。上記コイ
ル５及び５ａ−ｇは各磁極がＮ極とＳ極交互に並ぶよう
に極性を交互になるように配置する。また、その磁極の
間に増粘着材８及びａ−ｈを取り付ける。The inside of the electromagnetic coil 1 is as shown in Figs. 2 and 3, and the coils 5 and 5a-g are connected to the iron cores 6 and 6a.
surrounding the iron cores 6 and 6a-'g coating surface sliding parts 7 and 7a
-G is installed as a magnetic pole that comes into contact with the rail. The coils 5 and 5a-g are arranged with alternating polarities such that the magnetic poles are alternately arranged as north poles and south poles. Further, adhesive thickeners 8 and a-h are attached between the magnetic poles.
以上のような構造によって、車両が非−常ブレ−キをか
けると、従来力）ら用いられてし）るブレーキが動作す
ると同時に電磁コイル１がレール４上に落下し、直流電
流が上記電磁コイル１に流れ磁力が発生する。すると電
磁コイル１とレール４とカタその磁力により吸着し、車
両進行方向に進もうとする電磁コイル１とレール４との
間で摩擦力が生じ、その摩擦力がブレーキ力となる。With the structure described above, when the vehicle applies the emergency brake, the electromagnetic coil 1 falls onto the rail 4 at the same time as the brake (which is conventionally used) operates, and the DC current flows through the electromagnetic coil 1. A flow flows through the coil 1 and a magnetic force is generated. Then, the electromagnetic coil 1 and the rail 4 are attracted by their magnetic force, and a frictional force is generated between the electromagnetic coil 1 and the rail 4, which are trying to move in the direction of travel of the vehicle, and this frictional force becomes a braking force.
また、摺動する電磁コイル１のｍ極はＮ極とＳ極が交互
に並んでいるので、電磁コイル１が通過する際レール４
に渦電流が発生し、その渦電流により生ずる磁力が電磁
コイル１の磁力と車両進行方向に対して反対に働き、そ
の反発力がブレーキ力となる。In addition, since the m-poles of the sliding electromagnetic coil 1 have N and S poles arranged alternately, when the electromagnetic coil 1 passes, the rail 4
An eddy current is generated, and the magnetic force generated by the eddy current acts opposite to the magnetic force of the electromagnetic coil 1 and the direction of vehicle travel, and the repulsive force becomes a braking force.
この時、電磁コイル１に流す直流電流は比較的／Ｊｌ電
流なので、ｆ８電流発生によるレール４の温度上昇をお
さえることができ、レール座屈の不安はなくなる。At this time, since the direct current flowing through the electromagnetic coil 1 is relatively /Jl current, the rise in temperature of the rail 4 due to the generation of the f8 current can be suppressed, and there is no fear of rail buckling.
さらに、電磁コイル１がレール４に吸着して摩擦すると
、磁極間に位置する増粘着材８及びａ〜ｈも摩擦し、車
輪９及び９ａとレール４間の粘着改善が同時にできる。Further, when the electromagnetic coil 1 is attracted to the rail 4 and causes friction, the adhesion increasing materials 8 and a to h located between the magnetic poles also rub, and the adhesion between the wheels 9 and 9a and the rail 4 can be improved at the same time.
［発明の効果］
以上説明したように本発明によれば、車両の非常ブレー
キ時に、従来のブレーキに加えて、電磁コイルの磁極と
レールとの摩擦力、および電磁コイル通過の際レールに
生じる渦電流による磁力の反発力をブレーキ力とし、高
速から安定して停止できる非常ブレーキシステムを得る
ことができる。[Effects of the Invention] As explained above, according to the present invention, during emergency braking of a vehicle, in addition to conventional braking, the frictional force between the magnetic pole of the electromagnetic coil and the rail and the vortex generated on the rail when the electromagnetic coil passes are reduced. It is possible to obtain an emergency brake system that can stably stop from high speeds by using the repulsive force of the magnetic force generated by the current as a braking force.
また、本発明によれば、電磁コイルをレールに接触させ
るので、非接触型の渦電流式レールブレーキのようにレ
ールとの間隔をきびしく管理する必要がなく、加えてバ
ネ下装架にする必要もないのでバネ間装架にできバネ下
重量を増加させなく済む。Further, according to the present invention, since the electromagnetic coil is brought into contact with the rail, there is no need to strictly control the distance from the rail as in non-contact eddy current type rail brakes, and in addition, there is no need for unsprung mounting. Since there is no spring, it can be mounted between springs without increasing the unsprung weight.
さらに、本発明によれば、非接触型の渦電流式レールブ
レーキよりも小さな電流で動作するので、動作時のレー
ルの温度上昇を抑えることができ、レール張り出しの危
険性から解放される。Furthermore, according to the present invention, since it operates with a smaller current than a non-contact eddy current type rail brake, it is possible to suppress the rise in temperature of the rail during operation, and there is no danger of rail overhang.
加えて、本発明によれば、磁極間の増粘着材の働きによ
り、車輪・レール間の粘着を改善するので、粘着ブレー
キ力を大きくできる。In addition, according to the present invention, the adhesion between the wheels and the rails is improved by the action of the adhesion increasing material between the magnetic poles, so the adhesion braking force can be increased.
第１図は台車の軸間に本発明の高速用レールブレーキを
配置した一実施例を示すものであり、第２図は電磁コイ
ル１の拡大図である。また、第３図は第２図に示した電
磁コイルを下からみた図である。
１・・・電磁コイル ２・・・空気シリンダ ３・・・
台車枠 ４・・・レール ５．５ａ〜ｇ・・・コイル
６．６ａ〜ｇ・・・鉄芯 ７．７ａ〜ｇ・・・摺動部
８．８ａ−ｈ・・・増粘着材９．９ａ・・・車輪 １０
、ｌｏａ・・・口出し線
特許比願人 財団法人鉄道総合技術研究所第１図
ｙｇ図FIG. 1 shows an embodiment in which a high-speed rail brake of the present invention is arranged between the axes of a bogie, and FIG. 2 is an enlarged view of the electromagnetic coil 1. Moreover, FIG. 3 is a diagram of the electromagnetic coil shown in FIG. 2 viewed from below. 1... Electromagnetic coil 2... Air cylinder 3...
Bogie frame 4...Rail 5.5a~g...Coil
6.6a~g...Iron core 7.7a~g...Sliding part
8.8a-h...Adhesive material 9.9a...Wheel 10
, loa... Lead line patent applicant Railway Technology Research Institute Figure 1 yg diagram
Claims (1)
ルブレーキ装置において、レールブレーキの電磁コイル
の磁極配置をレール長手方向にＮ極とＳ極が交互になる
ように配置し、当該磁極を吸引力によりレールに吸着さ
せ、レールと電磁コイルの磁極が摩擦する際の摩擦力に
よるブレーキ力と、電磁コイルがレール頭面を通過する
ことによってレールに生ずる渦電流による磁力との反力
からくるブレーキ力とを合わせてレールブレーキのブレ
ーキ力に使用することを特徴とする吸着型渦電流レール
ブレーキ。 ２）請求項１記載の吸着型渦電流レールブレーキにおい
て、電磁コイルの磁極のレールと接触する部分には、吸
着力による摩擦力を大きく得られ、かつレール表面に損
傷を与えないように、焼結材などの摩擦材を取り付けた
ことを特徴とする吸着型渦電流レールブレーキ。 ３）請求項１，２記載の吸着型渦電流レールブレーキに
おいて、磁極間に増粘着材を取り付け、上記レールブレ
ーキ動作中は当該増粘着材がレールと摩擦することを特
徴とする吸着型渦電流レールブレーキ。[Claims] 1) In a rail brake device in which an electromagnetic coil is arranged between the axes of a bogie for a railway vehicle, the magnetic poles of the electromagnetic coil of the rail brake are arranged so that north and south poles alternate in the longitudinal direction of the rail. When the magnetic pole is placed on the rail, the magnetic pole is attracted to the rail, and the braking force is generated by the frictional force when the magnetic pole of the electromagnetic coil rubs against the rail, and the magnetic force is generated by the eddy current generated in the rail when the electromagnetic coil passes over the rail head. An adsorption type eddy current rail brake characterized in that the braking force generated from the reaction force of the eddy current rail brake is used as the braking force of the rail brake. 2) In the attraction type eddy current rail brake according to claim 1, the part of the magnetic pole of the electromagnetic coil that comes into contact with the rail is baked so as to obtain a large frictional force due to the attraction force and not to damage the rail surface. An adsorption-type eddy current rail brake that features a friction material such as binder attached. 3) In the adsorption type eddy current rail brake according to claims 1 and 2, an adhesion-enhancing material is attached between the magnetic poles, and the adhesion-increasing material rubs against the rail during the rail brake operation. rail brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33058390A JPH04207914A (en) | 1990-11-30 | 1990-11-30 | Attraction type eddy current rail brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33058390A JPH04207914A (en) | 1990-11-30 | 1990-11-30 | Attraction type eddy current rail brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04207914A true JPH04207914A (en) | 1992-07-29 |
Family
ID=18234276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33058390A Pending JPH04207914A (en) | 1990-11-30 | 1990-11-30 | Attraction type eddy current rail brake |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04207914A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4926908A (en) * | 1972-07-12 | 1974-03-09 | ||
| JPS5120086A (en) * | 1974-08-12 | 1976-02-17 | Hoya Glass Works Ltd | HIKARIMEMORIIKOKAOJUSURU HISHOSHITSUZAIRYO |
| JPS57143381A (en) * | 1981-03-02 | 1982-09-04 | Akebono Brake Ind Co Ltd | Friction material for railway vehicle |
| JPS6038257A (en) * | 1983-08-10 | 1985-02-27 | 株式会社日立製作所 | Device for stabilizing tack strength |
-
1990
- 1990-11-30 JP JP33058390A patent/JPH04207914A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4926908A (en) * | 1972-07-12 | 1974-03-09 | ||
| JPS5120086A (en) * | 1974-08-12 | 1976-02-17 | Hoya Glass Works Ltd | HIKARIMEMORIIKOKAOJUSURU HISHOSHITSUZAIRYO |
| JPS57143381A (en) * | 1981-03-02 | 1982-09-04 | Akebono Brake Ind Co Ltd | Friction material for railway vehicle |
| JPS6038257A (en) * | 1983-08-10 | 1985-02-27 | 株式会社日立製作所 | Device for stabilizing tack strength |
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| JPH05139309A (en) | Hybrid brake device |