JP5506208B2 - Wear state detection device - Google Patents

Wear state detection device Download PDF

Info

Publication number
JP5506208B2
JP5506208B2 JP2009040696A JP2009040696A JP5506208B2 JP 5506208 B2 JP5506208 B2 JP 5506208B2 JP 2009040696 A JP2009040696 A JP 2009040696A JP 2009040696 A JP2009040696 A JP 2009040696A JP 5506208 B2 JP5506208 B2 JP 5506208B2
Authority
JP
Japan
Prior art keywords
recording medium
heat
information recording
contact
antenna
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.)
Expired - Fee Related
Application number
JP2009040696A
Other languages
Japanese (ja)
Other versions
JP2010196750A (en
Inventor
孝徳 竹下
章嘉 黒岩
正貴 中島
祐一 中里
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Signal Co Ltd
Tokyo Metro Co Ltd
Original Assignee
Nippon Signal Co Ltd
Tokyo Metro Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Signal Co Ltd, Tokyo Metro Co Ltd filed Critical Nippon Signal Co Ltd
Priority to JP2009040696A priority Critical patent/JP5506208B2/en
Publication of JP2010196750A publication Critical patent/JP2010196750A/en
Application granted granted Critical
Publication of JP5506208B2 publication Critical patent/JP5506208B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Braking Arrangements (AREA)

Description

本発明は、温度検知ユニット及び摩耗状態検知装置に関し、さらに詳しくは、車輪を制動するブレーキシューの摩耗限界を電気的に検知する検知技術に関するものである。   The present invention relates to a temperature detection unit and a wear state detection device, and more particularly to a detection technique for electrically detecting a wear limit of a brake shoe that brakes a wheel.

従来から、電鉄車両には車輪を制動するために、１つの車輪に１つ以上の制輪子（ブレーキシュー）が取り付けられており、この制輪子は車輪との摩擦により車輪を制動するため、使用過程で摩耗してくる。また、制輪子にはこれ以上使用すると制動性能が著しく低下する摩耗限界線が設けられている。そこで、電鉄会社等では、保線区において各車両の制輪子が摩耗限界線に達しているか否かを定期的に目視によりチェックしている。しかし、従来の目視によるチェックでは、車輪に付着した油や鉄粉等により、車輪が汚れて摩耗限界線が隠れてしまい、摩耗限界に達したか否かを正しく判断ができなかった。また、仮に摩耗限界線が目視可能で、まだ摩耗限界線に達していないと確認した場合でも、安全性を優先するために早めに制輪子を交換してしまうといったことが多かった。
また、特許文献１には、ＩＣタグに内蔵する回路の少なくとも一部が制輪子が摩耗限界に達したときに物理的に破壊されるように構成し、ＩＣタグに内蔵する回路が破壊されたときに識別信号を発信する機能が失われて、送受信装置が識別信号を受信できなくすることにより、制輪子が摩耗限界に達したことを検知する摩耗検知装置及び摩耗検知システムについて開示されている。 Conventionally, in order to brake a wheel on an electric railway vehicle, one or more brakes (brake shoes) are attached to one wheel, and the brake is used for braking the wheel by friction with the wheel. It wears out in the process. In addition, the limiter is provided with a wear limit line that significantly reduces braking performance when used more than this. Therefore, an electric railway company or the like regularly checks visually whether or not the control wheel of each vehicle has reached the wear limit line in the track maintenance area. However, in the conventional visual check, the wheel becomes dirty and the wear limit line is hidden by oil, iron powder, etc. adhering to the wheel, and it is impossible to correctly determine whether or not the wear limit has been reached. Even when it is confirmed that the wear limit line is visible and has not yet reached the wear limit line, the control member is often replaced early in order to give priority to safety.
Further, Patent Document 1 is configured such that at least a part of the circuit built in the IC tag is physically destroyed when the brake reaches the wear limit, and the circuit built in the IC tag is destroyed. A wear detecting device and a wear detecting system for detecting that a control has reached the wear limit by losing the function of transmitting an identification signal from time to time and preventing the transmission / reception device from receiving the identification signal are disclosed. .

特開２００２−２５０３８３公報JP 2002-250383 A

しかし、特許文献１に開示されている従来技術においては、例えば、ＵＨＦ帯の電波を使用したＩＣタグの場合、アンテナの一部が破壊されても識別信号を発信することが可能であるため、摩耗限界を正確に検知できなかったという問題がある。
本発明は、かかる課題に鑑みてなされたものであり、制輪子が摩耗限界に達したときに、車輪と温度検知ユニットの金属部が接触するように構成し、この金属部を介して伝達する摩擦熱により温度検知ユニットの機能を喪失させることにより、制輪子の摩耗限界を非接触状態で正確に検知することができる温度検知ユニット及び摩耗状態検知装置を提供することを目的とする。 However, in the prior art disclosed in Patent Document 1, for example, in the case of an IC tag using UHF band radio waves, an identification signal can be transmitted even if a part of the antenna is destroyed. There is a problem that the wear limit could not be accurately detected.
The present invention has been made in view of such a problem, and is configured such that when the control member reaches the wear limit, the wheel and the metal part of the temperature detection unit are in contact with each other and transmitted through the metal part. An object of the present invention is to provide a temperature detection unit and a wear state detection device capable of accurately detecting the wear limit of the control member in a non-contact state by losing the function of the temperature detection unit due to frictional heat.

本発明はかかる課題を解決するために、請求項１は、固定側の部材の磨耗により金属部材と可動側部材同士の接触により発生した摩擦熱の温度が所定値に達したことを検知する熱検知手段と、該熱検知手段が所定値の温度を検知したことにより前記固定側の部材が摩耗限界に達したことを検出する摩耗限界検出手段と、を備えたことを特徴とする。
請求項２は、前記熱検知手段は、記録した識別情報を読取装置による読み取り時に電波として発信する情報記録媒体及び該読取装置との間で電波の授受を行うアンテナを備えた非接触情報記録媒体と、前記情報記録媒体、又は／及び前記アンテナに所定以上の高熱を伝達してこれらの機能を喪失させる熱伝達手段と、を備え、前記非接触情報記録媒体は、所定以上の高熱により溶断する金属製の連設部材により前記情報記録媒体と前記アンテナとを接続した構成を備え、前記熱伝達手段は、前記連設部材と近接配置された熱伝達部を備えていることを特徴とする。
非接触情報記録媒体は、外部の読取装置から放射された電波又は磁界を電力に変換して、情報記録媒体に記録している識別情報をアンテナを介して読取装置に送信する。従って、非接触情報記録媒体と読取装置間は電波（又は磁界）により非接触に交信が可能である。本発明では、更に、情報記録媒体、又は／及びアンテナに所定以上の高熱を伝達してこれらの機能を喪失させる熱伝達手段を備える。即ち、読取装置と非接触情報記録媒体間で識別情報の交信が正常に行なわれている間は、情報記録媒体、又は／及びアンテナに所定以上の高熱が伝達されなかったと判断し、逆に、読取装置と非接触情報記録媒体間で識別情報の交信が正常に行なわれない場合は、情報記録媒体、又は／及びアンテナに所定以上の高熱が伝達されたと判断する。これにより、非接触情報記録媒体に高熱の伝達が行なわれたか否かを非接触状態で電気的に検知することができる。また、情報記録媒体に記録されている識別情報は、アンテナを介して電波、又は磁界を読取装置に放射することにより交信が行なわれる。従って、情報記録媒体とアンテナの接続を何らかの方法で遮断すると、アンテナから電波、又は磁界が放射されなくなる。そこで本発明では、所定以上の高熱により溶断する金属製の連設部材により情報記録媒体とアンテナとを接続する。そして連設部材を熱伝達部に近接配置して、そこに高熱が伝達されると連設部材を溶断させて、情報記録媒体とアンテナの接続を遮断する。これにより、高熱が発生すると確実に情報記録媒体とアンテナの接続を遮断して、高熱の発生を迅速に、且つ正確に検出することができる。 In order to solve such a problem, the present invention provides a heat detection device for detecting that the temperature of frictional heat generated by contact between the metal member and the movable member due to wear of the fixed member reaches a predetermined value. And a wear limit detecting means for detecting that the fixed member has reached the wear limit when the heat detecting means detects a predetermined temperature.
According to a second aspect of the present invention, the heat detection unit includes an information recording medium that transmits recorded identification information as a radio wave when read by a reader, and a non-contact information recording medium that includes an antenna that transmits and receives radio waves to and from the reader. And heat transfer means for losing these functions by transmitting high heat above a predetermined level to the information recording medium or / and the antenna, and the non-contact information recording medium is fused by a high heat above the predetermined level. The information recording medium and the antenna are connected to each other by a metal continuous member, and the heat transfer means includes a heat transfer portion disposed in proximity to the continuous member.
The non-contact information recording medium converts a radio wave or a magnetic field radiated from an external reading device into electric power, and transmits identification information recorded on the information recording medium to the reading device via an antenna. Therefore, non-contact communication is possible between the non-contact information recording medium and the reading device by radio waves (or magnetic fields). The present invention further includes heat transfer means for transferring high heat above a predetermined level to the information recording medium and / or the antenna to lose these functions. That is, while the identification information is normally exchanged between the reading device and the non-contact information recording medium, it is determined that high heat above a predetermined level has not been transmitted to the information recording medium or / and the antenna. When the identification information is not normally exchanged between the reading device and the non-contact information recording medium, it is determined that high heat of a predetermined level or more has been transmitted to the information recording medium and / or the antenna. This makes it possible to electrically detect whether or not high heat has been transferred to the non-contact information recording medium in a non-contact state. The identification information recorded on the information recording medium is communicated by radiating a radio wave or a magnetic field to the reading device via the antenna. Therefore, if the connection between the information recording medium and the antenna is cut off by some method, no radio wave or magnetic field is emitted from the antenna. Therefore, in the present invention, the information recording medium and the antenna are connected by a metal continuous member that is melted by high heat of a predetermined level or higher. Then, the continuous member is disposed close to the heat transfer portion, and when high heat is transmitted there, the continuous member is melted to disconnect the connection between the information recording medium and the antenna. Thereby, when high heat is generated, the connection between the information recording medium and the antenna is surely cut off, and the generation of high heat can be detected quickly and accurately.

請求項３は、前記熱検知手段の少なくとも一部が前記可動側の部材と接触するように構成し、該接触により発生した摩擦熱を前記熱伝達手段を介して前記非接触情報記録媒体に伝達することを特徴とする。
本発明の熱検知手段は、情報記録媒体、又は／及びアンテナに所定以上の高熱を伝達してこれらの機能を喪失させる熱伝達手段を備えている。従って、この温度検知ユニットを、例えば、固定側の部材に配置する。そのとき重要なことは、固定側の部材の摩耗限界を電気的に検知するために、固定側の部材が摩耗限界まで摩耗したときに、熱伝達手段の少なくとも一部が可動側の部材と接触するように構成することである。例えば、熱伝達手段をアルミ等の金属で構成した場合、可動側の部材と接触することにより摩擦熱が発生し、その摩擦熱を熱伝達手段を介して非接触情報記録媒体に伝達させ、その熱により機能を喪失させるものである。これにより、固定側の部材の摩耗限界を外部から非接触で、且つ電気的に検出することができる。 Claim 3, at least a portion is configured to contact the movable member, said through said heat transfer means frictional heat generated by the contact noncontact information recording medium of the prior SL thermal detection means It is characterized by transmitting.
The heat detection means of the present invention includes a heat transfer means for transferring high heat above a predetermined level to the information recording medium and / or the antenna and losing these functions. Therefore, this temperature detection unit is disposed on, for example, a fixed member. Contact Then Importantly, in order to electrically detect the wear limit of the stationary member, when the member of the fixed side is worn to wear limit, at least a portion of the heat transfer means and the member of the movable It is to be configured. For example, when the heat transfer means is made of metal such as aluminum, frictional heat is generated by contact with the movable member, and the frictional heat is transmitted to the non-contact information recording medium via the heat transfer means. The function is lost by heat. Thereby, the wear limit of the member on the fixed side can be electrically detected from the outside without contact.

請求項４は、前記固定側の部材は電鉄車両の車輪を制動する制輪子であり、前記可動側の部材は前記車輪であることを特徴とする。
本発明の熱検知手段を電鉄車両の制輪子の摩耗状態を検知する手段に応用する場合、固定側を制輪子とし、可動側を車輪とする。即ち、温度検知ユニットを制輪子に配置する。そのとき重要なことは、制輪子の摩耗限界を電気的に検知するために、制輪子が摩耗限界まで摩耗したときに、熱伝達手段の少なくとも一部が車輪と接触するように構成することである。例えば、熱伝達手段をアルミ等の金属で構成した場合、車輪と接触することにより摩擦熱が発生し、その摩擦熱を熱伝達手段を介して非接触情報記録媒体に伝達させ、その熱により機能を喪失させるものである。これにより、制輪子の摩耗限界を外部から非接触で、且つ電気的に検出することができる。 According to a fourth aspect of the present invention, the fixed member is a brake member that brakes a wheel of an electric railway vehicle, and the movable member is the wheel.
When the heat detection means of the present invention is applied to a means for detecting the wear state of a control wheel of an electric railway vehicle, the fixed side is set as the control ring and the movable side is set as the wheel . In other words, the temperature detection unit is disposed on the control device. What is important at that time is to configure at least a part of the heat transfer means to contact the wheel when the control member wears to the wear limit in order to electrically detect the wear limit of the control device. is there. For example, when the heat transfer means is made of a metal such as aluminum, frictional heat is generated by contact with the wheel, and the frictional heat is transmitted to the non-contact information recording medium via the heat transfer means. Is to lose. Thereby, the wear limit of the control wheel can be detected from the outside in a non-contact manner and electrically.

本発明によれば、読取装置と非接触情報記録媒体間で識別情報の交信が正常に行なわれている間は、情報記録媒体、又は／及びアンテナに所定以上の高熱が伝達されなかったと判断し、逆に、読取装置と非接触情報記録媒体間で識別情報の交信が正常に行なわれない場合は、情報記録媒体、又は／及びアンテナに所定以上の高熱が伝達されたと判断するので、非接触情報記録媒体に高熱の伝達が行なわれたか否かを非接触状態で電気的に検知することができる。
また、連設部材を熱伝達部に近接配置して、そこに高熱が伝達されると連設部材を溶断させて情報記録媒体とアンテナの接続を遮断するので、高熱が発生すると確実にアンテナの機能を喪失させて、高熱の発生を迅速に、且つ正確に検出することができる。
また、第１の部材が摩耗限界まで摩耗したときに、熱伝達手段の少なくとも一部が第２の部材と接触するように構成することで摩擦熱が発生し、その摩擦熱を熱伝達手段を介して非接触情報記録媒体に伝達させて機能を喪失させるので、第１の部材の摩耗限界を外部から非接触で、且つ電気的に検出することができる。
また、固定側の制輪子を第１の部材とし、可動側の車輪を第２の部材とするので、車輪による制輪子の摩耗限界を外部から非接触で、且つ電気的に検出することができる。 According to the present invention, while the identification information is normally exchanged between the reader and the non-contact information recording medium, it is determined that high heat above a predetermined level has not been transmitted to the information recording medium and / or the antenna. Conversely, if the identification information is not normally exchanged between the reader and the non-contact information recording medium, it is determined that high heat of a predetermined level or more has been transmitted to the information recording medium and / or the antenna. Whether or not high heat is transmitted to the information recording medium can be electrically detected in a non-contact state.
In addition, the continuous member is arranged close to the heat transfer portion, and when the high heat is transmitted there, the continuous member is blown to cut off the connection between the information recording medium and the antenna. Loss of function can quickly and accurately detect the occurrence of high heat.
Further, when the first member is worn to the wear limit, friction heat is generated by configuring at least a part of the heat transfer means to be in contact with the second member, and the friction heat is transferred to the heat transfer means. Therefore, the wear limit of the first member can be detected from the outside in a non-contact manner and electrically.
Further, since the stationary side restrictor is the first member and the movable wheel is the second member, the wear limit of the restrictor due to the wheel can be detected from the outside in a non-contact manner and electrically. .

本発明に係る温度検知ユニットの外形を表す図である。It is a figure showing the external shape of the temperature detection unit which concerns on this invention. ＲＦＩＤタグ４０の機能を高熱により喪失させるための、ＩＣチップ８とアンテナ１０の構成を示す図である。It is a figure which shows the structure of IC chip 8 and the antenna 10 for losing the function of the RFID tag 40 by high heat. 本発明の温度検知ユニットを車輪を制動する制輪子に取り付けた例を説明する図である。It is a figure explaining the example which attached the temperature detection unit of this invention to the wheel brake which brakes a wheel. 本発明の実施形態に係る摩耗状態検知装置の概略構成図である。It is a schematic block diagram of the abrasion state detection apparatus which concerns on embodiment of this invention.

以下、本発明を図に示した実施形態を用いて詳細に説明する。但し、この実施形態に記載される構成要素、種類、組み合わせ、形状、その相対配置などは特定的な記載がない限り、この発明の範囲をそれのみに限定する主旨ではなく単なる説明例に過ぎない。
図１は本発明に係る温度検知ユニットの外形を表す図である。図１（ａ）は側断面図、図１（ｂ）は上カバーを外した状態を示す上面図である。この温度検知ユニット５０は、記録した識別情報を図示しない読取装置による読み取り時に電波として発信するＩＣチップ（情報記録媒体）８、及び読取装置との間で電波の授受を行うアンテナ１０を基板５に実装したＲＦＩＤタグ（非接触情報記録媒体）４０と、ＩＣチップ８、又は／及びアンテナ１０に所定以上の高熱を伝達してこれらの機能を喪失させる金属部（熱伝達手段）１と、ＲＦＩＤタグ４０を挟み込んだ状態で内部に中空部９を有する樹脂部６、７と、を備えて構成されている。尚、金属部１には、突起部（熱伝達部）２を有し、この例では突起部２にＩＣチップ８が近接配置されている。また、樹脂部６、７は、金属部１に固定するための固定孔４ａ、４ｂが空けられ、図示しないボルトにより金属部１と固定される。また、温度検知ユニット５０を後述する制輪子４１に固定するための固定孔３ａ、３ｂが空けられ、図示しないボルトにより制輪子４１と固定される。
即ち、ＲＦＩＤタグ４０は、外部の読取装置から放射された電波又は磁界を電力に変換して、ＩＣチップ８に記録している識別情報をアンテナ１０を介して読取装置に送信する。従って、ＲＦＩＤタグ４０と読取装置間は電波（又は磁界）により非接触に交信が可能である。本実施形態では、更に、ＩＣチップ８、又は／及びアンテナ１０に所定以上の高熱を伝達してこれらの機能を喪失させる金属部１を備える。即ち、読取装置とＲＦＩＤタグ４０間で識別情報の交信が正常に行なわれている間は、ＩＣチップ８、又は／及びアンテナ１０に所定以上の高熱が伝達されなかったと判断し、逆に、読取装置とＲＦＩＤタグ４０間で識別情報の交信が正常に行なわれない場合は、ＩＣチップ８、又は／及びアンテナ１０に所定以上の高熱が伝達されたと判断する。これにより、高熱の伝達が行なわれたか否かを非接触状態で電気的に検知することができる。 Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. However, the components, types, combinations, shapes, relative arrangements, and the like described in this embodiment are merely illustrative examples and not intended to limit the scope of the present invention only unless otherwise specified. .
FIG. 1 is a view showing the outer shape of a temperature detection unit according to the present invention. FIG. 1A is a side sectional view, and FIG. 1B is a top view showing a state where an upper cover is removed. The temperature detection unit 50 includes an IC chip (information recording medium) 8 that transmits recorded identification information as radio waves when read by a reading device (not shown), and an antenna 10 that transmits and receives radio waves to and from the reading device. A mounted RFID tag (non-contact information recording medium) 40, a metal part (heat transfer means) 1 for transmitting a high heat of a predetermined level or more to the IC chip 8 or / and the antenna 10 to lose these functions, and an RFID tag Resin portions 6 and 7 having a hollow portion 9 inside with 40 interposed therebetween. The metal part 1 has a protrusion (heat transfer part) 2, and in this example, an IC chip 8 is disposed close to the protrusion 2. The resin parts 6 and 7 have fixing holes 4a and 4b for fixing to the metal part 1, and are fixed to the metal part 1 by bolts (not shown). In addition, fixing holes 3a and 3b for fixing the temperature detection unit 50 to a control device 41 which will be described later are formed, and the temperature detection unit 50 is fixed to the control device 41 with bolts (not shown).
That is, the RFID tag 40 converts a radio wave or magnetic field radiated from an external reader into electric power, and transmits identification information recorded on the IC chip 8 to the reader via the antenna 10. Therefore, the RFID tag 40 and the reader can communicate in a non-contact manner by radio waves (or magnetic fields). In this embodiment, the metal part 1 which transmits high heat more than predetermined to the IC chip 8 and / or the antenna 10 and loses these functions is further provided. That is, while the identification information is normally exchanged between the reading device and the RFID tag 40, it is determined that high heat above a predetermined level has not been transmitted to the IC chip 8 and / or the antenna 10, and conversely, the reading When the identification information is not normally exchanged between the apparatus and the RFID tag 40, it is determined that a predetermined high heat is transmitted to the IC chip 8 and / or the antenna 10. Thereby, it can be electrically detected in a non-contact state whether or not high heat has been transmitted.

図２はＲＦＩＤタグ４０の機能を高熱により喪失させるための、ＩＣチップ８とアンテナ１０の構成を示す図である。同じ構成要素には図１と同じ参照番号を付して説明する。図２（ａ）に示すＲＦＩＤタグ４０ａは、所定以上の高熱により溶断する金属製の連設部材１１、１２によりＩＣチップ８とアンテナ１０、１５とをパッド１４、１３を介して接続した構成を備え、連設部材１１、１２は突起部２と近接配置されている。
また、図２（ｂ）に示すＲＦＩＤタグ４０ｂは、ＩＣチップ８を突起部２から離して、連設部材１１、１２だけを突起部２に近接配置した構成である。この構成では、熱に弱い半導体部品であるＩＣチップ８を熱が発生する突起部２から遠ざけておくことにより、通常動作でＩＣチップ８が熱により加熱されることを防止して、ＩＣチップ８の信頼性を高めることができる。
即ち、ＩＣチップ８に記録されている識別情報は、アンテナ１０を介して電波、又は磁界を読取装置に放射することにより交信が行なわれる。従って、ＩＣチップ８とアンテナ１０、１５の接続を何らかの方法で遮断すると、アンテナ１０、１５から電波、又は磁界が放射されなくなる。そこで本実施形態では、所定以上の高熱により溶断する金属製の連設部材１１、１２によりＩＣチップ８とアンテナ１０、１５とを接続する。そして連設部材１１、１２を突起部２に近接配置して、そこに高熱が伝達されると連設部材１１、１２を溶断させて、ＩＣチップ８とアンテナ１０、１５の接続を遮断する。これにより、高熱が発生すると確実にＩＣチップ８とアンテナ１０、１５の接続を遮断して、高熱の発生を迅速に、且つ正確に検出することができる。 FIG. 2 is a diagram showing a configuration of the IC chip 8 and the antenna 10 for losing the function of the RFID tag 40 due to high heat. The same components will be described with the same reference numerals as in FIG. The RFID tag 40a shown in FIG. 2A has a configuration in which the IC chip 8 and the antennas 10 and 15 are connected via the pads 14 and 13 by the metal connecting members 11 and 12 that are melted by high heat of a predetermined level or more. The connecting members 11 and 12 are arranged close to the protrusion 2.
Further, the RFID tag 40b shown in FIG. 2B has a configuration in which the IC chip 8 is separated from the protruding portion 2 and only the connecting members 11 and 12 are disposed close to the protruding portion 2. In this configuration, the IC chip 8, which is a heat-sensitive semiconductor component, is kept away from the protrusion 2 that generates heat, thereby preventing the IC chip 8 from being heated by heat in a normal operation. Can improve the reliability.
That is, the identification information recorded on the IC chip 8 is communicated by radiating a radio wave or a magnetic field to the reading device via the antenna 10. Therefore, if the connection between the IC chip 8 and the antennas 10 and 15 is cut off by some method, no radio wave or magnetic field is emitted from the antennas 10 and 15. Therefore, in the present embodiment, the IC chip 8 and the antennas 10 and 15 are connected by the metal connecting members 11 and 12 that are fused by high heat of a predetermined level or more. Then, the connecting members 11 and 12 are disposed in the vicinity of the projecting portion 2, and when high heat is transmitted thereto, the connecting members 11 and 12 are melted to cut off the connection between the IC chip 8 and the antennas 10 and 15. Thereby, when high heat is generated, the connection between the IC chip 8 and the antennas 10 and 15 is surely cut off, and the generation of high heat can be detected quickly and accurately.

また、図２（ｃ）に示すＲＦＩＤタグ４０ｃは、ＩＣチップ８とアンテナ１０、１５を接続する連設部材１８、１７を高熱により溶断しない金属で構成し、ＩＣチップ８を突起部２に近接配置した構成である。この構成では、熱に弱い半導体部品であるＩＣチップ８を熱が発生する突起部２に近接配置することにより、突起部２に高熱が発生すると、ＩＣチップ８が熱破壊されて、結果的に、アンテナ１０、１５から電波、又は磁界が放射されなくなるように構成した。
図２（ｄ）に示すＲＦＩＤタグ４０ｄは、アンテナをループアンテナ１９として、その両端をＲＦＩＤタグ８に接続し、ループアンテナ１９の中間点を所定以上の高熱により溶断する金属製の連設部材２０により接続し、連設部材２０を突起部２に近接配置した構成である。ループアンテナ１９は、ループ内を電波又は磁界が横切ることによりループアンテナ１９を介して情報の授受が可能となる。従って、ループアンテナ１９のループが１箇所でも遮断されると、アンテナの機能を果たさなくなる。本実施形態では、これを利用して、ループアンテナ１９の少なくとも１箇所を所定以上の高熱により溶断する金属製の連設部材２０で構成して、高熱が発生すると連設部材２０を溶断してループアンテナ１９の機能を喪失させるものである。 2 (c), the connecting members 18 and 17 that connect the IC chip 8 and the antennas 10 and 15 are made of a metal that is not melted by high heat, and the IC chip 8 is close to the protrusion 2. It is the arranged configuration. In this configuration, by placing the IC chip 8 that is a semiconductor component that is vulnerable to heat close to the protrusion 2 that generates heat, if the heat is generated in the protrusion 2, the IC chip 8 is thermally destroyed, and as a result. The antennas 10 and 15 are configured not to radiate radio waves or magnetic fields.
An RFID tag 40d shown in FIG. 2 (d) has a loop antenna 19 as an antenna, both ends thereof are connected to the RFID tag 8, and a metal connecting member 20 that melts the midpoint of the loop antenna 19 with a predetermined high heat or higher. And the connecting member 20 is arranged close to the protrusion 2. The loop antenna 19 can exchange information via the loop antenna 19 when a radio wave or magnetic field crosses the loop. Therefore, if even one loop of the loop antenna 19 is interrupted, the function of the antenna is not achieved. In the present embodiment, using this, at least one portion of the loop antenna 19 is configured by a metal continuous member 20 that is melted by high heat of a predetermined level or more, and when the high heat is generated, the continuous member 20 is melted. The function of the loop antenna 19 is lost.

図３は本発明の温度検知ユニットを車輪を制動する制輪子に取り付けた例を説明する図である。図３（ａ−１）は制輪子が摩耗する以前の正面図であり、図３（ａ−２）はその側面図であり、図３（ａ−３）はＡ部拡大図である。また、図３（ｂ−１）は制輪子が摩耗した後の正面図であり、図３（ｂ−２）はその側面図であり、図３（ｂ−３）はＡ部拡大図である。
制輪子４１は、制輪子４１をブレーキに取り付けるための取付部２５を有する背板２６と、摩擦用の成形物２７ａ、２７ｂとを備えて構成されている。そして、制輪子４１には、これ以上摩耗すると制動性能が著しく低下することを知らせるための摩耗限界線２４が記されている。温度検知ユニット５０は、制輪子４１の側面にボルトにより固定される。図３（ａ−１）では、成形物２７ａ、２７ｂは殆ど摩耗していないため、図３（ａ−３）のように温度検知ユニット５０の金属部１は車輪２８と接触することはない。即ち、この状態では、ブレーキをかける度に成形物２７ａ、２７ｂで発生する摩擦熱が金属部１を介して温度検知ユニット５０に伝達されるが、成形物２７ａ、２７ｂの熱容量が大きいため、温度検知ユニットの機能を喪失させるまでの温度には達しない。即ち、一般的に、ブレーキを動作させた時の車輪の温度は、初速９５Ｋｍ／ｈで約１８０℃になり、その時の制輪子の温度は約４０℃となるデータがある。従って、通常のブレーキ動作では温度検知ユニット５０の機能を喪失させることはない。
次に、図３（ｂ−１）のように、成形物２７ａ、２７ｂが摩耗限界線２４の近傍まで摩耗した場合、制輪子４１に固定された温度検知ユニット５０の金属部１が車輪２８に接触する。それにより、金属部１は、図３（ｂ−３）のように車輪２８との摩擦により１ａ部が削られ、その時の摩擦熱が金属部１を伝達して温度検知ユニットの機能を喪失させる。例えば、高速試験（初速約１００ｋｍ／ｈ以上）を実施した場合に金属部１が２００℃以上になることを確認している。また、初速１２５ｋｍ／ｈからの制動で２５０℃以上になることが確認されている。この温度は、ＲＦＩＤタグ８を熱破壊するのに十分な温度であり、また、連設部材１１、１２を溶断させるにも十分な温度である。 FIG. 3 is a view for explaining an example in which the temperature detection unit of the present invention is attached to a brake member for braking a wheel. FIG. 3 (a-1) is a front view before the control member wears out, FIG. 3 (a-2) is a side view thereof, and FIG. 3 (a-3) is an enlarged view of part A. FIG. 3 (b-1) is a front view after the control device is worn, FIG. 3 (b-2) is a side view thereof, and FIG. 3 (b-3) is an enlarged view of the A part. .
The restrictor 41 includes a back plate 26 having an attachment portion 25 for attaching the restrictor 41 to a brake, and molded products 27a and 27b for friction. Further, a wear limit line 24 for notifying that the braking performance is remarkably deteriorated if the wear is further worn is written on the brake element 41. The temperature detection unit 50 is fixed to the side surface of the brake element 41 with bolts. In FIG. 3 (a-1), since the molded products 27a and 27b are hardly worn, the metal portion 1 of the temperature detection unit 50 does not contact the wheel 28 as shown in FIG. 3 (a-3). That is, in this state, every time the brake is applied, the frictional heat generated in the molded products 27a and 27b is transmitted to the temperature detection unit 50 through the metal portion 1, but the temperature of the molded products 27a and 27b is large. The temperature is not reached until the function of the detection unit is lost. That is, generally, there is data that the temperature of the wheel when the brake is operated is about 180 ° C. at an initial speed of 95 km / h, and the temperature of the control at that time is about 40 ° C. Therefore, the function of the temperature detection unit 50 is not lost in normal braking operation.
Next, as shown in FIG. 3 (b-1), when the molded products 27 a and 27 b are worn to the vicinity of the wear limit line 24, the metal part 1 of the temperature detection unit 50 fixed to the control device 41 is attached to the wheel 28. Contact. Thereby, as shown in FIG. 3B-3, the metal part 1 is scraped 1a part by friction with the wheel 28, and the frictional heat at that time transmits the metal part 1 to lose the function of the temperature detection unit. . For example, it has been confirmed that the metal part 1 is 200 ° C. or higher when a high-speed test (initial speed of about 100 km / h or higher) is performed. In addition, it has been confirmed that braking at an initial speed of 125 km / h is 250 ° C. or higher. This temperature is sufficient to thermally destroy the RFID tag 8 and is also sufficient to melt the connecting members 11 and 12.

図４は本発明の実施形態に係る摩耗状態検知装置の概略構成図である。同じ構成要素には図３と同じ参照番号を付して説明する。この摩耗状態検知装置６０は、車輪２８と当接させることにより発生する摩擦により車輪２８を制動する制輪子４１に温度検知ユニット５０を配置し、制輪子４１が摩耗限界まで摩耗したときに、金属部１の少なくとも一部が車輪２８と接触することにより発生する熱を、金属部１を介して温度検知ユニット５０に伝達するように構成した。そして、レール３１の近傍に送受信装置３２を配置して、保守点検の時期が到来した車両３０を保線区に敷設したレール３１上で移動させ、送受信装置３２から放射された電波３３を温度検知ユニット５０が受信する。このとき、制輪子４１が摩耗限界線２４まで摩耗していない場合は、ＲＦＩＤタグ８に記録されている識別情報を発信するので、送受信装置３２は、この車両３０の制輪子４１はまだ使用可能であると判断する。逆に、制輪子４１が摩耗限界線２４まで摩耗している場合は、ＩＣチップ８に記録されている識別情報を発信することができないので、送受信装置３２は、この車両３０の制輪子４１は使用不可であると判断して、新しい制輪子に交換する。また、制輪子ごとに異なる識別情報を与えておき、車両ごとに識別情報と車輪番号を対応付けたテーブルを用意しておくことにより、車輪単位に制輪子の摩耗状態を判定することができる。   FIG. 4 is a schematic configuration diagram of a wear state detection apparatus according to an embodiment of the present invention. The same components will be described with the same reference numerals as in FIG. This wear state detection device 60 has a temperature detection unit 50 arranged on a brake 41 that brakes the wheel 28 by friction generated by contact with the wheel 28, and when the wear control 41 is worn to the wear limit, The heat generated when at least a part of the part 1 comes into contact with the wheel 28 is transmitted to the temperature detection unit 50 via the metal part 1. Then, a transmission / reception device 32 is arranged in the vicinity of the rail 31, the vehicle 30 that has reached the time of maintenance inspection is moved on the rail 31 laid in the track, and the radio wave 33 radiated from the transmission / reception device 32 is transmitted to the temperature detection unit. 50 receives. At this time, if the control 41 is not worn to the wear limit line 24, the identification information recorded in the RFID tag 8 is transmitted, so that the transmission / reception device 32 can still use the control 41 of the vehicle 30. It is judged that. On the contrary, when the control device 41 is worn down to the wear limit line 24, the identification information recorded on the IC chip 8 cannot be transmitted. If it is determined that it cannot be used, replace it with a new one. Further, by providing different identification information for each control device and preparing a table in which the identification information is associated with the wheel number for each vehicle, the wear state of the control device can be determined for each wheel.

本実施形態の温度検知ユニット５０は、ＩＣチップ８、又は／及びアンテナ１０に所定以上の高熱を伝達してこれらの機能を喪失させる金属部１を備えている。従って、この温度検知ユニット５０を、例えば、車輪２８と当接することにより発生する摩擦により車輪を制動する制輪子（ブレーキシュー）４１に配置する。そして、重要なことは、制輪子４１の摩耗限界を電気的に検知するために、制輪子４１が摩耗限界まで摩耗したときに、金属部１の少なくとも一部が車輪２８と接触するように構成することである。例えば、金属部１をアルミ等で構成した場合、車輪２８と接触することにより摩擦熱が発生し、その摩擦熱を金属部１を介して温度検知ユニット５０に伝達させ、その熱により機能を喪失させるものである。これにより、制輪子４１の摩耗限界を外部から非接触で、且つ電気的に検出することができる。
以上の説明では、本発明の温度検知ユニット５０を電鉄車両の制輪子が摩耗限界まで摩耗したか否かを検知する摩耗状態検知装置に適用したが、回転体を制動する制動部を有する機器であれば、どのようなものにも本発明の温度検知ユニット５０を適用することは可能である。 The temperature detection unit 50 of the present embodiment includes the metal part 1 that transmits high heat of a predetermined level or more to the IC chip 8 and / or the antenna 10 to lose these functions. Therefore, this temperature detection unit 50 is disposed, for example, on a brake shoe (brake shoe) 41 that brakes the wheel by friction generated by coming into contact with the wheel 28. And, importantly, in order to electrically detect the wear limit of the restrictor 41, when the restrictor 41 is worn to the wear limit, at least a part of the metal part 1 is in contact with the wheel 28. It is to be. For example, when the metal part 1 is made of aluminum or the like, frictional heat is generated by contact with the wheels 28, and the frictional heat is transmitted to the temperature detection unit 50 through the metal part 1, and the function is lost due to the heat. It is something to be made. As a result, the wear limit of the restrictor 41 can be electrically detected from the outside without contact.
In the above description, the temperature detection unit 50 according to the present invention is applied to a wear state detection device that detects whether or not the control wheel of an electric railway vehicle has been worn to the wear limit. If there is any, it is possible to apply the temperature detection unit 50 of the present invention.

１ 金属部、２ 突起部、３、４ 取付孔、５ 基板、６、７ 樹脂部、８ ＩＣチップ、９ 中空部、１０、１５ アンテナ、１１、１２、１７、１８、２０ 連設部材、１３、１４、１６ パッド、２４ 摩耗限界線、２５ 取付部、２６ 背板、２７ 成形物、２８ 車輪、２９ フランジ、３０ 車両、３１ レール、３２ 送受信装置、３３ 電波、４０ ＲＦＩＤタグ、４１ 制輪子、５０ 温度検知ユニット、６０ 摩耗状態検知装置   1 Metal part, 2 Protrusion part, 3, 4 Mounting hole, 5 Substrate, 6, 7 Resin part, 8 IC chip, 9 Hollow part, 10, 15 Antenna, 11, 12, 17, 18, 20 Consecutive member, 13 , 14, 16 Pad, 24 Wear limit line, 25 Mounting part, 26 Back plate, 27 Molded product, 28 Wheel, 29 Flange, 30 Vehicle, 31 Rail, 32 Transmitter / receiver, 33 Radio wave, 40 RFID tag, 41 Control, 50 temperature detection unit, 60 wear state detection device

Claims (4)

固定側の部材の磨耗により金属部材と可動側部材同士の接触により発生した摩擦熱の温度が所定値に達したことを検知する熱検知手段と、
該熱検知手段が所定値の温度を検知したことにより前記固定側の部材が摩耗限界に達したことを検出する摩耗限界検出手段と、
を備えたことを特徴とする摩耗状態検知装置。 Heat detecting means for detecting that the temperature of frictional heat generated by contact between the metal member and the movable side member due to wear of the member on the fixed side has reached a predetermined value;
A wear limit detecting means for detecting that the fixed side member has reached a wear limit by detecting a temperature of a predetermined value by the heat detecting means;
A wear state detection device comprising: 前記熱検知手段は、記録した識別情報を読取装置による読み取り時に電波として発信する情報記録媒体及び該読取装置との間で電波の授受を行うアンテナを備えた非接触情報記録媒体と、前記情報記録媒体、又は／及び前記アンテナに所定以上の高熱を伝達してこれらの機能を喪失させる熱伝達手段と、を備え、
前記非接触情報記録媒体は、所定以上の高熱により溶断する金属製の連設部材により前記情報記録媒体と前記アンテナとを接続した構成を備え、
前記熱伝達手段は、前記連設部材と近接配置された熱伝達部を備えていることを特徴とする請求項１に記載の摩耗状態検知装置。 The heat detection means includes an information recording medium that transmits recorded identification information as radio waves when read by a reader, a non-contact information recording medium that includes an antenna that transmits and receives radio waves to and from the reader, and the information recording medium A medium or / and heat transfer means for transferring high heat above a predetermined level to the antenna and losing these functions,
The non-contact information recording medium has a configuration in which the information recording medium and the antenna are connected by a metal continuous member that is fused by high heat of a predetermined level or more,
The wear state detection device according to claim 1, wherein the heat transfer unit includes a heat transfer unit disposed in proximity to the connecting member. 前記熱検知手段の少なくとも一部が前記可動側の部材と接触するように構成し、該接触により発生した摩擦熱を前記熱伝達手段を介して前記非接触情報記録媒体に伝達することを特徴とする請求項２に記載の摩耗状態検知装置。 Characterized in that at least part of the pre-Symbol thermal detection means configured to contact the movable member, for transmitting a frictional heat generated by the contact with the non-contact information recording medium through said heat transfer means The wear state detection device according to claim 2 . 前記固定側の部材は電鉄車両の車輪を制動する制輪子であり、前記可動側の部材は前記車輪であることを特徴とする請求項１に記載の摩耗状態検知装置。 The wear state detection device according to claim 1 , wherein the fixed member is a brake member that brakes a wheel of an electric railway vehicle, and the movable member is the wheel.
JP2009040696A 2009-02-24 2009-02-24 Wear state detection device Expired - Fee Related JP5506208B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2009040696A JP5506208B2 (en) 2009-02-24 2009-02-24 Wear state detection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2009040696A JP5506208B2 (en) 2009-02-24 2009-02-24 Wear state detection device

Publications (2)

Publication Number Publication Date
JP2010196750A JP2010196750A (en) 2010-09-09
JP5506208B2 true JP5506208B2 (en) 2014-05-28

Family

ID=42821680

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2009040696A Expired - Fee Related JP5506208B2 (en) 2009-02-24 2009-02-24 Wear state detection device

Country Status (1)

Country Link
JP (1) JP5506208B2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5177709B2 (en) 2009-10-15 2013-04-10 株式会社デンソー Electronic control unit
JP2013257725A (en) * 2012-06-12 2013-12-26 Sharp Corp Wireless detector and wireless detector reading device
JP2014146201A (en) * 2013-01-29 2014-08-14 Sharp Corp State output device and control method for state output device
JP6886370B2 (en) * 2017-08-29 2021-06-16 川崎重工業株式会社 Railroad vehicle brake shoe wear detection system
CN112211933A (en) * 2020-09-15 2021-01-12 深圳市远望谷信息技术股份有限公司 Train brake shoe abrasion detection device and detection method

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3095035U (en) * 2002-12-27 2003-07-18 原田電子工業株式会社 Brake shoe wear detector
JP2006004027A (en) * 2004-06-16 2006-01-05 Showa Electric Wire & Cable Co Ltd Temperature detecting ic tag, and system for detecting temperature

Also Published As

Publication number Publication date
JP2010196750A (en) 2010-09-09

Similar Documents

Publication Publication Date Title
JP5506208B2 (en) Wear state detection device
JP2017512945A (en) Brake member with wear indicator
KR102162631B1 (en) Permanent Attached On Surface Tire UHF Band RFID Tag And Their Manufacturing Methods
CN103978992B (en) Mounting bolt capable of obtaining temperature of mounted equipment, and train axle thereof
US10524362B2 (en) Circuitized structure with 3-dimensional configuration
CN101821528A (en) Bremsbacke
KR101411047B1 (en) Radio frequency identification system
US20040052203A1 (en) Light enabled RFID in information disks
US7404199B2 (en) Method, system, and apparatus for high volume assembly of compact discs and digital video discs incorporating radio frequency identification tag technology
US6651495B2 (en) Apparatus and method for detecting the condition of an item
US9122967B2 (en) Radio frequency identification tags and methods employing ceramic components, which may be suitable for use in extreme environmental conditions
EP1703447B1 (en) RFID tag
US20140091918A1 (en) Wear Detection System and Method
CN103377395A (en) RFID circuit and method
CN102308114A (en) Vehicle brake
KR20160050452A (en) Rfid tag attached on surface of tire
US20170140258A1 (en) Post application editing of multiresonator chipless radio frequency identification (rfid)
US20080204554A1 (en) Electronic Article Surveillance System
CN101663750A (en) Electronic device, electronic apparatus mounting electronic device, article mounting electronic device, and method for manufacturing electronic device
JP2004205437A (en) Abrasion determining system, device and program
EP1225585A1 (en) CD comprising a transponder and a CD-box comprising a resonance circuit
JP2000048147A (en) Label-like noncontact data carrier and its manufacture
EP1407163B1 (en) Vehicle brake friction lining condition reporting arrangement
JP4963458B2 (en) Joint protection cap
JP5838737B2 (en) RFID module, method of manufacturing RFID module, and method of attaching to optical media

Legal Events

Date Code Title Description
A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20111201

A711 Notification of change in applicant

Free format text: JAPANESE INTERMEDIATE CODE: A711

Effective date: 20111201

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A821

Effective date: 20111201

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20120210

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20120127

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20120222

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20130125

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20130205

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20130403

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20131029

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20131226

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20140304

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20140318

R150 Certificate of patent or registration of utility model

Ref document number: 5506208

Country of ref document: JP

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees