JP5073364B2 - Positioning accuracy evaluation method of protective plate of ground coil device with surface protective layer of superconducting magnetic levitation railway - Google Patents
Positioning accuracy evaluation method of protective plate of ground coil device with surface protective layer of superconducting magnetic levitation railway Download PDFInfo
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- JP5073364B2 JP5073364B2 JP2007139464A JP2007139464A JP5073364B2 JP 5073364 B2 JP5073364 B2 JP 5073364B2 JP 2007139464 A JP2007139464 A JP 2007139464A JP 2007139464 A JP2007139464 A JP 2007139464A JP 5073364 B2 JP5073364 B2 JP 5073364B2
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- 230000001681 protective effect Effects 0.000 title claims abstract description 38
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- 238000005339 levitation Methods 0.000 title claims description 30
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 18
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- 239000000463 material Substances 0.000 abstract description 6
- 229910052755 nonmetal Inorganic materials 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 8
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- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 239000010410 layer Substances 0.000 description 4
- 238000009413 insulation Methods 0.000 description 3
- 238000004804 winding Methods 0.000 description 3
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- 239000011521 glass Substances 0.000 description 2
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- 239000000523 sample Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001066 destructive effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
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Abstract
Description
本発明は、超電導磁気浮上式鉄道に配置される地上コイル装置の保護板の位置決め精度評価方法に係わり、特に、推進・浮上・案内機能を兼用するＰＬＧコイルに関する表面保護層の改良並びに、その保護板の位置決め精度の評価方法に関するものである。 The present invention relates to a method for evaluating the positioning accuracy of a protective plate of a ground coil device disposed in a superconducting magnetic levitation railway, and in particular, an improvement of a surface protective layer for a PLG coil that also serves as a propulsion / levitation / guide function and its protection The present invention relates to a method for evaluating the positioning accuracy of a plate.
従来、超電導磁気浮上式鉄道に配置される地上コイル装置として、本願発明者らは、表面保護層を巻線コイルと一緒に金型内にセットし、モールド樹脂にて一体成形を施す保護層構成方法を提案している（下記特許文献１参照）。
図７は従来の超電導磁気浮上式鉄道のＰＬＧ表面保護層付地上コイル装置のガイドウェイの模式図、図８はその地上コイル装置の断面図であり、図８（ａ）はその平面図、図８（ｂ）はその側面図である。
Conventionally, as a ground coil device arranged in a superconducting magnetic levitation railway, the inventors of the present application set a protective layer configuration in which a surface protective layer is set in a mold together with a winding coil and integrally molded with a molding resin. A method has been proposed (see Patent Document 1 below).
FIG. 7 is a schematic view of a guideway of a ground coil device with a PLG surface protective layer of a conventional superconducting magnetic levitation railway, FIG. 8 is a cross-sectional view of the ground coil device, FIG. 8A is a plan view thereof, FIG. 8 (b) is a side view thereof.
図７に示すように、ガイドウェイ１００の両側に設けられるガイドウェイ側壁１０１に、同一コイルで地上コイルの３機能（推進・浮上・案内）を兼用できるＰＬＧ地上コイル１０２を配置する方式となっている。
そのＰＬＧ地上コイル１０２は、図８に示すように、コイル本体１０２Ａの車両に配置される側にコイル表面保護層１０２Ｂを形成するようにしていた。
As shown in FIG. 7, a PLG ground coil 102 that can share three functions (promotion, levitation, and guidance) of the ground coil with the same coil is arranged on the guideway side walls 101 provided on both sides of the guideway 100. Yes.
In the PLG ground coil 102, as shown in FIG. 8, a coil surface protective layer 102B is formed on the side of the coil body 102A that is disposed on the vehicle.
図９はかかる従来の超電導磁気浮上式鉄道のＰＬＧ表面保護層付地上コイルの断面模式図である。
この図において、２０１はコイル導体、２０２は位置決めスペーサ、２０３は保護板としてのＦＲＰ板、２０４はモールド樹脂、２０５は表面保護層であり、ＦＲＰ板２０３の表面とモールド樹脂２０４の表面には導電性処理が施されており、両者はケーブル接続用コネクタ金具を介してケーブルの接地線２０６で接地されるように構成される。
FIG. 9 is a schematic sectional view of a ground coil with a PLG surface protective layer of such a conventional superconducting magnetic levitation railway.
In this figure, 201 is a coil conductor, 202 is a positioning spacer, 203 is an FRP plate as a protective plate, 204 is a mold resin, 205 is a surface protective layer, and the surface of the FRP plate 203 and the surface of the mold resin 204 are electrically conductive. Both are configured to be grounded by a cable ground wire 206 via a cable connecting connector fitting.
ここで、保護板（ＦＲＰ板）２０３の厚さａは２ｍｍ、コイル導体２０１の表面から保護板（ＦＲＰ板）２０３までの距離ｂは１２ｍｍである。また、保護板（ＦＲＰ板）２０３は表面保護層２０５の構成部材であるガラスクロスシート上に配置されている。
かかる表面保護層付地上コイルを構成することにより、（１）保守作業時の感電を防止することができ、ガイドウェイ内での安全を確保することができ、（２）鉄道車両の超高速運転時の微小飛来物から地上コイル自体を保護することができる。
By configuring such a ground coil with a surface protective layer, (1) electric shock during maintenance work can be prevented, safety within the guideway can be ensured, and (2) ultra-high speed operation of railway vehicles The ground coil itself can be protected from minute flying objects.
しかしながら、このような表面保護層２０５に形成される保護板（ＦＲＰ板）２０３は、正しい位置に配置されないと、絶縁強度上問題が生じるといった課題があるにも関わらず、従来の地上コイルにおける表面保護層構成方法では、成形コイル内における保護板（ＦＲＰ板）の位置を非破壊で確認する手段がなかった。
本発明は、上記状況に鑑みて、超電導磁気浮上式鉄道の地上コイルにおいて表面保護層の非金属材料からなる保護板の位置を非破壊で確実に確認することができる超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置決め精度評価方法を提供することを目的とする。
However, the protective plate (FRP plate) 203 formed on such a surface protective layer 205 has a problem that if it is not arranged at the correct position, there arises a problem in insulation strength. In the protective layer construction method, there was no means for nondestructively confirming the position of the protective plate (FRP plate) in the molded coil.
In view of the above situation, the present invention provides a surface of a superconducting magnetic levitation railway that can reliably and non-destructively confirm the position of a protective plate made of a non-metallic material of a surface protective layer in a ground coil of a superconducting magnetic levitation railway. It aims at providing the positioning accuracy evaluation method of the protection board of a ground coil device with a protective layer.
本発明は、上記目的を達成するために、
〔１〕超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置決め精度評価方法において、表面保護層内に配置される非金属材料からなる保護板上の複数の箇所に導電性円板を配置し、前記導電性円板上に設定される渦電流式変位センサーを用いて、コイル表面から前記導電性円板までの距離を計測することを特徴とする。
In order to achieve the above object, the present invention provides
[ 1 ] In a method for evaluating the positioning accuracy of a protective plate of a ground coil device with a surface protective layer of a superconducting magnetic levitation railway, conductive circles are formed at a plurality of locations on a protective plate made of a nonmetallic material disposed in the surface protective layer. A plate is arranged, and the distance from the coil surface to the conductive disk is measured using an eddy current displacement sensor set on the conductive disk.
〔２〕上記〔１〕記載の超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置決め精度評価方法において、前記保護板がＦＲＰ板であることを特徴とする。
〔３〕上記〔１〕記載の超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置決め精度評価方法において、前記導電性円板がアルミニウム円板であることを特徴とする。
[2] In the method for evaluating the positioning accuracy of the protective plate of the ground coil device with a surface protective layer of the superconducting magnetic levitation railway described in [1], the protective plate is an FRP plate.
[3] In the method for evaluating the positioning accuracy of a protective plate of a ground coil device with a surface protective layer of a superconducting magnetically levitated railway as set forth in [1], the conductive disc is an aluminum disc.
〔４〕上記〔１〕記載の超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置決め精度評価方法において、前記導電性円板が銅円板であることを特徴とする。 [4] In the method for evaluating the positioning accuracy of a protective plate of a ground coil device with a surface protective layer of a superconducting magnetic levitation railway as described in [1] above, the conductive circular plate is a copper circular plate.
本発明によれば、次のような効果を奏することができる。
従来技術では、超電導磁気浮上式鉄道のコイル表面からコイル導体までの距離に関しては渦電流式変位センサーにより測定が可能であったが、コイル表面から表面保護層を構成するＦＲＰ板のような非金属材料からなる保護板までの距離を渦電流式変位センサーで測定することはできなかった。また、超音波式変位センサーでは表面保護層に補強用ガラスクロス等が配置されているため、当該部位で乱反射が生じ、同様に測定不能であった。
According to the present invention, the following effects can be achieved.
In the prior art, the distance from the coil surface of the superconducting magnetic levitation railway to the coil conductor could be measured by an eddy current displacement sensor. However, a non-metallic material such as an FRP plate constituting a surface protective layer from the coil surface. The distance to the protective plate made of material could not be measured with an eddy current displacement sensor. Further, in the ultrasonic displacement sensor, since a reinforcing glass cloth or the like is disposed on the surface protective layer, irregular reflection occurs at the portion, and measurement is impossible.
これに対し、本発明によれば、超電導磁気浮上式鉄道の地上コイルにおいて、表面保護層構成用保護板（ＦＲＰ板）までの距離を非破壊で正確に評価することができる。 On the other hand, according to the present invention, in the ground coil of a superconducting magnetic levitation railway, the distance to the protective plate (FRP plate) for constructing the surface protective layer can be accurately evaluated nondestructively.
本発明の超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置決め精度評価方法は、表面保護層内に配置される非金属材料からなる保護板上の複数の箇所に導電性円板を配置し、前記導電性円板上に設定される渦電流式変位センサーを用いて、コイル表面から前記導電性円板までの距離を計測する。 The method of evaluating the positioning accuracy of a protective plate of a ground coil device with a surface protective layer of a superconducting magnetic levitation railway according to the present invention includes a conductive circle at a plurality of locations on a protective plate made of a nonmetallic material disposed in the surface protective layer. A plate is disposed, and the distance from the coil surface to the conductive disk is measured using an eddy current displacement sensor set on the conductive disk .
以下、本発明の実施の形態について詳細に説明する。
図１は本発明の実施例を示す超電導磁気浮上式鉄道の表面保護層付地上コイル装置（ＰＬＧ地上コイル装置）の保護板の平面模式図、図２は超電導磁気浮上式鉄道の表面保護層付地上コイル装置（ＰＬＧ地上コイル装置）の断面模式図である。
これらの図において、超電導磁気浮上式鉄道の表面保護層付地上コイル装置１は巻線コイル２と、その表面保護層に配置される非金属材料からなる保護板（ＦＲＰ板）３と、その保護板（ＦＲＰ板）３に固定される導電性円板（アルミニウム円板）４、モールド樹脂５とを備えている。
Hereinafter, embodiments of the present invention will be described in detail.
FIG. 1 is a schematic plan view of a protective plate of a ground coil device with a surface protective layer (PLG ground coil device) of a superconducting magnetic levitation railway showing an embodiment of the present invention, and FIG. 2 is with a surface protective layer of a superconducting magnetic levitation railway. It is a cross-sectional schematic diagram of a ground coil apparatus (PLG ground coil apparatus).
In these figures, a ground coil device 1 with a surface protective layer of a superconducting magnetic levitation railway is a winding coil 2, a protective plate (FRP plate) 3 made of a non-metallic material disposed on the surface protective layer, and its protection. A conductive disc (aluminum disc) 4 fixed to a plate (FRP plate) 3 and a mold resin 5 are provided.
このように、表面保護層を構成する非金属材料からなる保護板（ＦＲＰ板）３の任意表面に導電性円板であるアルミニウム円板４を貼付し、巻線コイル２と一緒にモールド樹脂５にて一体成形を施した。そして、成形された地上コイル装置１の導電性円板（アルミニウム円板）４上に渦電流式変位センサーを設定し、コイル表面から導電性円板（アルミニウム円板）４までの距離を測定する。これにより、コイル表面〜ＦＲＰ板，ＦＲＰ板〜コイル導体の距離を正確に評価することができる。 Thus, the aluminum disk 4 which is an electroconductive disk is affixed on the arbitrary surfaces of the protective plate (FRP board) 3 which consists of a nonmetallic material which comprises a surface protective layer, and the mold resin 5 is put together with the coil 2 Was integrally molded. Then, an eddy current displacement sensor is set on the formed conductive disk (aluminum disk) 4 of the ground coil device 1 and the distance from the coil surface to the conductive disk (aluminum disk) 4 is measured. . Thereby, the distance of the coil surface-FRP board, FRP board-coil conductor can be evaluated correctly.
図３は本発明の実施例を示す超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置測定のためのＰＬＧ地上コイルの構成図である。
この図において、１１は日の字形状のコイル、１２は口出し端子、１３はブッシュ、１４はコイル１１の１個に付き８箇所配置されるアルミニウム円板である。
従来より成形コイルの絶縁厚さ（コイル表面からコイル導体までの距離）は渦電流式変位センサーにより測定が可能であったが、高機能地上コイルの車両側ではＦＲＰ板からコイル導体までの距離が事実上の絶縁厚さとなるため、ＦＲＰ板の埋め込み位置（コイル表面からの距離）も測定する必要がある。そこで、位置測定用のマーカーとしてアルミニウム円板をＦＲＰ板に接着して埋め込み、このアルミニウム円板を渦電流式変位センサーにより検知する方法を用いることで精度良く測定することができるようにした。
FIG. 3 is a configuration diagram of a PLG ground coil for measuring the position of a protective plate of a ground coil device with a surface protective layer of a superconducting magnetic levitation railway showing an embodiment of the present invention.
In this figure, 11 is a coil in the shape of a Japanese character, 12 is a lead terminal, 13 is a bush, and 14 is an aluminum disc disposed at 8 locations per coil 11.
Conventionally, the insulation thickness of the molded coil (distance from the coil surface to the coil conductor) could be measured by an eddy current displacement sensor. On the vehicle side of the high-performance ground coil, the distance from the FRP plate to the coil conductor is Since this is the actual insulation thickness, it is also necessary to measure the FRP plate embedding position (distance from the coil surface). Therefore, an aluminum disk is bonded and embedded in the FRP plate as a position measurement marker, and the aluminum disk can be accurately measured by using a method of detecting the aluminum disk by an eddy current displacement sensor.
本発明の表面保護層付地上コイル装置（ＰＬＧ地上コイル装置）では、コイル１個につき８箇所のアルミニウム円板（φ２０ｍｍ×ｔ１ｍｍまたはｔ２ｍｍ）を埋め込んだ。なお、これは、評価手法の検証のための円板配置例に過ぎず、必ずしもコイルに対しての最適位置を示しているものではない。
このように構成することにより、表面保護層付地上コイル装置の保護板（ＦＲＰ板）の上下左右の埋め込み位置を特定することができる。
In the ground coil device with a surface protective layer (PLG ground coil device) of the present invention, eight aluminum disks (φ20 mm × t1 mm or t2 mm) were embedded in each coil. This is merely an example of a disk arrangement for verification of the evaluation method, and does not necessarily indicate the optimum position with respect to the coil.
By comprising in this way, the embedding position of the upper and lower, right and left of the protection board (FRP board) of the ground coil apparatus with a surface protection layer can be specified.
ここで、ＦＲＰ板の位置測定について説明する。
図４は本発明によるＦＲＰ板位置測定の状況を示す図、図５は同一のアルミニウム円板を用いた校正作業により予め得られたギャップと出力電圧の測定の結果を示す図、図６はそのＦＲＰ板の位置測定結果を示す図である。
渦電流式変位センサー１５のプローブ１６によりコイルに埋め込まれたアルミニウム円板を検知し（図４参照）、予め取得した校正結果（図５参照）を元に渦電流式変位センサーの出力電圧をコイル表面からＦＲＰ板までの距離に換算した。また、アルミニウム円板埋め込み位置のコイルを切断し（機械的破壊）、コイル表面からＦＲＰ板までの距離を実測（撮影画像から測定）し、両者を比較した。
Here, the position measurement of the FRP plate will be described.
FIG. 4 is a diagram showing the situation of FRP plate position measurement according to the present invention, FIG. 5 is a diagram showing the results of gap and output voltage measurement obtained in advance by calibration work using the same aluminum disc, and FIG. It is a figure which shows the position measurement result of a FRP board.
The aluminum disk embedded in the coil is detected by the probe 16 of the eddy current displacement sensor 15 (see FIG. 4), and the output voltage of the eddy current displacement sensor is coiled based on the calibration result acquired in advance (see FIG. 5). It was converted into the distance from the surface to the FRP plate. Further, the coil at the aluminum disk embedding position was cut (mechanical destruction), and the distance from the coil surface to the FRP plate was measured (measured from the photographed image), and the two were compared.
両者の測定比較結果を図６に示す。マーカーとなるアルミニウム円板の厚さに関係なく、渦電流式変位センサーによる測定値から換算した値と実測値は概ね一致した。
以上の結果から、本発明の方法により、ＦＲＰ板の埋め込み位置を非破壊で精度良く測定できることが確認できた。
なお、本発明は上記実施例に限定されるものではなく、本発明の趣旨に基づき種々の変形が可能であり、これらを本発明の範囲から排除するものではない。
The measurement comparison results of the two are shown in FIG. Regardless of the thickness of the aluminum disc serving as the marker, the value converted from the measured value by the eddy current displacement sensor and the measured value almost coincided.
From the above results, it was confirmed that the embedded position of the FRP plate can be measured with high accuracy in a non-destructive manner by the method of the present invention.
In addition, this invention is not limited to the said Example, Based on the meaning of this invention, a various deformation | transformation is possible and these are not excluded from the scope of the present invention.
本発明の超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置決め精度評価方法は、超電導磁気浮上式鉄道の地上コイルの精度評価に利用することができる。 The method for evaluating the positioning accuracy of a protective plate of a ground coil device with a surface protective layer for a superconducting magnetic levitation railway according to the present invention can be used to evaluate the accuracy of the ground coil of a superconducting magnetic levitation railway.
１ 表面保護層付地上コイル装置
２ 巻線コイル
３ 非金属材料からなる保護板（ＦＲＰ板）
４ 導電性円板（アルミニウム円板）
５ モールド樹脂
１１ 日の字形状のコイル
１２ 口出し端子
１３ ブッシュ
１４ アルミニウム円板
１５ 渦電流式変位センサー
１６ プローブ
1 Ground coil device with surface protective layer 2 Winding coil 3 Protection plate (FRP plate) made of non-metallic material
4 Conductive disc (aluminum disc)
5 Mold Resin 11 Day Shaped Coil 12 Lead Terminal 13 Bush 14 Aluminum Disk 15 Eddy Current Displacement Sensor 16 Probe
Claims (4)
（ｂ）前記導電性円板上に設定される渦電流式変位センサーを用いて、コイル表面から前記導電性円板までの距離を計測することを特徴とする超電導磁気浮上式鉄道の表面保護層付地上コイル装置の保護板の位置決め精度評価方法。 (A) disposing conductive discs at a plurality of locations on a protective plate made of a non-metallic material disposed in the surface protective layer;
(B) A surface protective layer for a superconducting magnetically levitated railway, wherein a distance from a coil surface to the conductive disk is measured using an eddy current displacement sensor set on the conductive disk. A method for evaluating the positioning accuracy of a protective plate of an attached ground coil device.
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