JPH06186167A - Trouble sensor - Google Patents
Trouble sensorInfo
- Publication number
- JPH06186167A JPH06186167A JP36174092A JP36174092A JPH06186167A JP H06186167 A JPH06186167 A JP H06186167A JP 36174092 A JP36174092 A JP 36174092A JP 36174092 A JP36174092 A JP 36174092A JP H06186167 A JPH06186167 A JP H06186167A
- Authority
- JP
- Japan
- Prior art keywords
- cable
- bolt
- components
- failure
- penetrating hole
- 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
Landscapes
- Testing Or Calibration Of Command Recording Devices (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Geophysics And Detection Of Objects (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】車両等の様に、機器が故障した場
合に、安全に係わる結果を招く恐れのある機械装置で
は、その様なフェーラーモードに対しては、冗長性のあ
る設計が必要である。冗長性とは、少なくとも二重の保
安機能を有すると共に、レディネスインジケーターに依
り常時両機能の正常性を監視し、少なくとも一方が故障
し、シングルフェーラーポイントが発生した場合には、
直ちに警報やインターロックに依り、運転の続行を規制
する事が条件である。従って、ボルト等で結合された機
械は、例え複数のボルトで結合されていても、順次破損
して行く事に気付かない構造では冗長設計とは認められ
ない。しかし、機械設計では、強度的に余裕のある設計
を行えば、間歇点検でも信頼性は確保されると考えられ
て来たが、最近、環境問題から来る省資源、省燃費等の
為、限界設計が必要と成った為、本発明装置が必要と成
った。また省力化の為、メンテナンスフリーガ必要と成
って来たことからも、本装置は必要である。[Industrial application] For mechanical devices such as vehicles that may result in safety in the event of equipment failure, there is a redundant design for such a failure mode. is necessary. Redundancy has at least a double security function, and at the same time monitors the normality of both functions depending on the readiness indicator, and if at least one fails and a single failure point occurs,
It is a condition that immediate continuation of driving is regulated by immediate warning or interlock. Therefore, a machine connected with bolts or the like is not considered as a redundant design in a structure in which it is not noticed that the machines are sequentially damaged even if they are connected with a plurality of bolts. However, in mechanical design, it has been considered that reliability can be secured even during intermittent inspections if a design with sufficient strength is made, but recently, due to resource saving, fuel saving, etc. due to environmental problems, there is a limit. The device of the present invention was needed because of the design required. This device is also necessary because maintenance freeguards have become necessary for labor saving.
【0002】[0002]
【従来の技術】従来は機械部品の結合手段として最も汎
用的なボルト結合について言えば、上述の如く、一つの
部品を複数のボルトで締めつける事で、冗長性は得られ
るものとの考えられ、又、平均故障間隔時間(MTBF
と称される)の範囲内に点検を行えば信頼性は確保され
る。との考えで設計されて来た。その様な考えは、特に
限界設計に対しては、信頼性工学上合理性はなく、電子
回路等の冗長設計に比しアンバランスに成っている場合
が多い。2. Description of the Related Art Conventionally, regarding the most general-purpose bolt connection as a connecting means for mechanical parts, it is considered that redundancy can be obtained by fastening one part with a plurality of bolts as described above. Also, the mean time between failures (MTBF
The reliability is secured if the inspection is performed within the range of (referred to as). It has been designed with the idea. Such an idea is not rational in terms of reliability engineering, especially for a marginal design, and is often unbalanced as compared with a redundant design of an electronic circuit or the like.
【0003】さらに、定期点検方式では、分解点検に依
って不良のボルトを発見して交換すれば、そのボルトに
就いては信頼性が回復するが、その他のボルトに就いて
は、分解に依って返って不要の信頼性低下を招く恐れの
有ることも指摘されている。又、頻繁に分解点検を行え
ば作業品質に問題が起き易い事も知られており、又、新
規の組立時には組立易い設計に成っていても、分解点検
後の再組立時には充分な作業性や検査性が確保しにくい
ケースもしばしば経験する所である。この点に配慮し
て、点検し易くする為に設計上の配慮をすれば、限界設
計の目的から外れて来る事になる。更に、限界設計下で
は、強度的には複数のボルトを使用して荷重を分散させ
た方が有利であるが、一本が緩んだり、破断したりすれ
ば、残されたボルトの荷重が増大し、其に依って撓み、
振動等が増大し、その儘使用を続ければ連鎖反応的に全
ボルトの破断を招く危険が大きい。Further, in the regular inspection method, if a defective bolt is found and replaced by overhaul inspection, reliability is restored for the bolt, but for other bolts, it depends on disassembly. It has also been pointed out that there is a risk that it may cause unnecessary deterioration in reliability. It is also known that frequent disassembly and inspection often causes problems in work quality.Also, even if the design is easy to assemble at the time of new assembly, sufficient workability and rework are required at the time of reassembly after disassembly and inspection. I often experience cases where it is difficult to secure testability. If this point is taken into consideration and design consideration is given to make inspection easier, it will deviate from the purpose of limit design. Furthermore, under the limit design, it is advantageous to use multiple bolts to distribute the load in terms of strength, but if one bolt becomes loose or breaks, the load on the remaining bolts will increase. And then it bends,
Vibration and the like increase, and if the continuous use is continued, there is a great risk of breaking all bolts in a chain reaction.
【0004】割りピン、ロックワイヤー、舌付ワッシャ
ー等の利用で、信頼性を高めようとする考えもあるが、
これら、は組立て現場で、金属に塑性変形を与えて組み
付ける為、残存強度の品質管理が困難で、一度分解した
物を再使用したりする場合の履歴管理も困難で有る。
又、ボルトに設けられる割ピン用の穴は、通常1個乃至
2個で、ナットに設けられる溝は等分6個であり、これ
らは互いに容易に割り切れる比率である為、規定トルク
で締めつけた場合に、割りピン用の穴が貫通しない機会
が多発する。此の際、ボルトがテンションボルトとして
設計されているとは限らず、若し、テンションボルトと
して軸方向に適正なバネ定数が設けられておらず、剛性
が高過ぎた場合に、適性トルク位置から若干緩めて割り
ピンを取りつけた場合は、所期の締めつけ力が得られ
ず、一方、規定以上のトルクを与えて割りピンを通せ
ば、ボルトが破断する危険が増す。又、上記の割りピン
等のロック手段は、ねじ溝の切り欠き効果に依る疲労ク
ラック、応力腐食等に依る、ボルトの破断、首飛び等の
ありふれたフェーラーモードに対し有効でなく、勿論是
に連なる上記連鎖反応的破断にも無効で有る。There is an idea to improve reliability by using a split pin, a lock wire, a tongue washer, etc.
Since these are assembled by giving plastic deformation to the metal at the assembly site, it is difficult to control the quality of the residual strength, and it is also difficult to manage the history when reusing a disassembled product.
In addition, the number of holes for cotter pins provided in the bolt is usually 1 to 2, and the number of grooves provided in the nut is 6 equally. These are ratios that can be easily dividable from each other. In this case, the cotter pin holes often fail to penetrate. At this time, the bolt is not always designed as a tension bolt, and if the tension bolt does not have an appropriate spring constant in the axial direction and the rigidity is too high, loosen it slightly from the proper torque position. If the cotter pin is attached with the cotter pin, the desired tightening force cannot be obtained. On the other hand, if the cotter pin is passed through with a torque exceeding the specified value, the risk of the bolt breaking increases. Further, the above locking means such as the split pin is not effective for common failure modes such as fatigue cracks due to the notch effect of the screw groove, stress corrosion, bolt breakage, neck jumping, etc. It is also ineffective in the above chain reaction breakage.
【0005】[0005]
【発明が解決しようとする課題】上述のように、機械的
手段の積み重ねで、冗長性、信頼性を得ようとする事は
困難であり、故障検知装置の導入が必要である。そし
て、検知装置は、検知対象物よりも充分高い待ち受け時
耐久性を必要とする。そして、小くとも管理者が認知出
来ない、不検知側フェーラーモードが存在しては成らな
い。本発明装置はこの様な要件を満たす、故障検知装置
の提供を目的としている。As described above, it is difficult to obtain redundancy and reliability by stacking mechanical means, and it is necessary to introduce a failure detection device. Then, the detection device needs a standby durability that is sufficiently higher than that of the detection target. And there must not be a non-detection-side failure mode that the administrator cannot recognize. The device of the present invention aims to provide a failure detection device that satisfies such requirements.
【0006】[0006]
【課題を解決するための手段】上記目的を達成するため
に、本発明の故障検知装置においては、複数の機械部品
を、複数のボルト等で締めつけ結合させて使用する際、
当該ボルト等が、機械の使用中に緩んだり、破断したり
する故障を起こし、遂には機械自体が故障し、機能しな
く成るばかりか、時には使用者にとって危険な結果を招
くに至る様な、フエーラーモード上の各段階において、
緩み、脱落等の故障の際、相対移動する部品間に光ファ
テバーケーブルを、主として直列に張り巡らし、上記相
対移動に依り、ケーブルが切断される様に保持する。In order to achieve the above object, in the failure detection device of the present invention, when a plurality of mechanical parts are fastened and coupled with a plurality of bolts or the like,
The bolts or the like cause a failure such as loosening or breakage during use of the machine, which eventually causes the machine itself to fail, failing to function, and sometimes causing dangerous results for the user. At each stage on the failure mode,
In the case of a failure such as loosening or dropping, an optical fiber cable is stretched mainly in series between parts that move relative to each other, and the cable is held so as to be cut by the relative movement.
【0007】切断の方法は移動する部品に直接挟まれて
剪断される様にする外、ボルト等の破断脱落等の様に、
直接切断させる事が困難なモードに対しては、是に応動
するナイフエッジ等に依り切断させる。The cutting method is such that it is directly sandwiched between moving parts so as to be sheared, as well as breakage of bolts and the like.
For modes that are difficult to cut directly, cut with a knife edge that responds to this.
【0008】光ケーブルの一端には投光器を、他端には
受光器を設け、投光器は正常時に通光する方式とする。
受光器は電子回路に依り、受光異常時の検知、警報、イ
ンターロック等を行わせる。The optical cable is provided with a light emitter at one end and a light receiver at the other end, and the light emitter is of a system that allows light to pass through in a normal state.
The light receiver uses an electronic circuit to perform detection, alarm, interlock, etc. when abnormal light is received.
【0009】投光器側の使用光は可視光とし、受光器側
の受光を分光して、運転者の常時目視チエックを可能に
する事に依り、光学系の不点灯側の故障のチェツクを可
能にする。また、受光側の電子機器の故障モードについ
ては、電子回路内で、冗長回路、チエック回路を設ける
が、これらが全て故障したとしても、上記直視に依っ
て、被検知機械の故障を知る事が出来る。また、鉄道車
両等では、ホーム、車両基地等での停車時、走行中の信
号器の手前等でも上記目視用分光を車外の地上検知器で
もモニターし、中央管制室に通報したり、信号機に割り
込み制御を行う事も出来る。The light used on the side of the projector is visible light, and the received light on the side of the receiver is dispersed to enable the driver to constantly check the eyes, thereby making it possible to check the failure of the unlit side of the optical system. To do. Also, regarding the failure mode of the electronic device on the light receiving side, a redundant circuit and a check circuit are provided in the electronic circuit, but even if all of them fail, it is possible to know the failure of the machine to be detected by looking directly above. I can. In addition, in railway cars, etc., when the vehicle is stopped at a platform, a depot, etc., or before the running traffic light, etc., the above visible light spectrum is also monitored by a ground detector outside the vehicle to notify the central control room or Interrupt control can also be performed.
【0010】機械装置付近をとりまわす故障検知回線の
一部にでも電線を使用すると、金属部のショートや、強
電機器からの電磁誘導等から、必要な時に警報が出ない
フェーラーモードが考えられる為、主回線は全路光ケー
ブルで往復する。それでも、当該機械の故障に依り、一
度切断されたケーブルが、振動等の為、瞬間的に光路が
繋がったりする可能性も若干存在する為、送信光には負
諭理のデジタルコードを載せ、受信側で解読照合させ
る。多連の鉄道車両等の場合は、途中の車両から、その
車両の振動、モーターや軸受けの過熱等の保安上のデー
ターや車内の治安、火災監視等の画像情報を送る事も出
来る。この際のチャンネル選択は先ずローカルエリアネ
ットワークでポーリンクを行い、時分割で送信させる場
合も有る。光ファイバーケーブルは主として被服付きを
使用し、大型機械用は更にスチールワイアーを入れて、
補強する場合もある。If an electric wire is used even for a part of the failure detection line around the mechanical equipment, a failure mode in which an alarm is not issued when necessary due to a short circuit of a metal part, electromagnetic induction from high-power equipment, etc. is conceivable. Therefore, the main line will be reciprocated with an optical fiber cable. Nevertheless, due to the failure of the machine, there is a possibility that the optical path will be momentarily connected due to vibration etc. of the cable once cut, so a negative code is put on the transmitted light, Decode and verify on the receiving side. In the case of multiple trains, it is also possible to send image data such as vibration data of the train, safety data such as overheating of motors and bearings, security in the train, fire monitoring, etc. from the train in the middle. In this case, the channel may be selected by first performing the polling in the local area network and transmitting the data in a time division manner. Fiber optic cables are mainly used with clothes, and for large machines, steel wires are also added,
It may be reinforced.
【0011】[0011]
【作用】上記のように構成された故障検知装置はボルト
等で機械的に結合された機械装置に適用する事に依り、
当該装置の緩み、破断等の故障を部分的段階で、検知す
るように働く。The failure detection device configured as described above is applied to a mechanical device mechanically coupled with a bolt or the like,
It works to detect failures such as looseness and breakage of the device at a partial stage.
【0012】[0012]
【実施例】実施例について図面を参照して説明すると、
図1において、1は機械の本体の一部を示し、2はこれ
にボルトで締めつけて使用する部品の一部を示す。3は
1と2を結合する六角穴付きボルトで、4は前述の光フ
ァイバーケーブル、5はボルト3の頭部に設けられた、
上記ケーブル4を遊合保持する穴で、円周上等分に数個
設けられている。6は舌付きワッシャーで、6の舌7
は、図の如く予めボルト3の頭部の外周円筒面に近接す
る様、円弧状にプレス加工され、スロット8は、図の如
くボルト3の穴5に対向する位置に、1乃至3個程度
の、円周方向に長い長穴で、ボルト側の穴5の全ての回
転方向位置に対して、図の如くケーブル4が貫通出来る
様に配置される。ピン9はワッシャー6の回り止めに成
っている。従って、ボルト3が緩んで回転すれば、穴5
と長穴8がずれる為、ケーブル4が切断される。EXAMPLES Examples will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes a part of the main body of the machine, and 2 denotes a part of a part which is bolted to the main body. 3 is a hexagon socket head cap screw for connecting 1 and 2, 4 is the above-mentioned optical fiber cable, and 5 is provided on the head of the bolt 3,
It is a hole for loosely holding the above-mentioned cable 4, and several holes are provided at equal intervals on the circumference. 6 is a tongue washer, 6 tongue 7
Is pre-pressed into an arc shape so as to come close to the outer peripheral cylindrical surface of the head of the bolt 3 as shown in the drawing, and about 1 to 3 slots 8 are provided at the positions facing the holes 5 of the bolt 3 as shown in the drawing. Is a long hole that is long in the circumferential direction, and is arranged so that the cable 4 can penetrate through all the positions in the rotation direction of the hole 5 on the bolt side as shown in the drawing. The pin 9 is a detent for the washer 6. Therefore, if the bolt 3 loosens and rotates, the hole 5
Since the long hole 8 is displaced, the cable 4 is cut.
【0013】ケーブル4は、更に図示の如く、ピン9に
設けられた穴10を通す。従って、ボルト3の首部が破
断した場合には、舌付きワッシャー6は予圧されたばね
11に依り、穴10より上迄浮き上がる為、ケーブル4
が穴10の両端で剪断される外、ナイフエッジ12の浮
き上がりに依って、穴19の左端出口でも剪断される。The cable 4 further passes through a hole 10 provided in the pin 9 as shown. Therefore, when the neck portion of the bolt 3 is broken, the washer 6 with the tongue floats up above the hole 10 due to the preloaded spring 11, and thus the cable 4
Is sheared at both ends of the hole 10 and also at the left end outlet of the hole 19 due to the lifting of the knife edge 12.
【0014】更にボルト3が脱落し、1と2間の締めつ
け力がなく成ると、アンカーボルト13と、2に設けら
れた、是より若干大きい径の穴14との半径の差丈け、
1と2がずれる為、それぞれに設けられた穴15と16
がずれる事に依り、光ワイアー4が剪断される。更に2
が浮き上がれば、ボルト13に滑合されたワッシャー1
7も浮き上がって、ボルト13の穴18を貫通するケー
ブル4を剪断する。又、1と2に設けられた穴19と2
0の境目でも剪断される。When the bolt 3 is further dropped and the tightening force between 1 and 2 is lost, the difference in radius between the anchor bolt 13 and the hole 14 provided in 2 and having a slightly larger diameter,
Because holes 1 and 2 are offset, holes 15 and 16 are provided in each hole.
Due to the slippage, the optical wire 4 is sheared. 2 more
If it rises, the washer 1 slipped on the bolt 13
7 also rises and shears the cable 4 through the hole 18 in the bolt 13. Also, the holes 19 and 2 provided in 1 and 2
It is also sheared at the zero boundary.
【0015】図2と、その側面図3に示される実施例で
は、軸21は、溝付きナット22に依り、本体23に締
めつけ結合されている。光ケーブル4は、軸21のねじ
部の右端に設けられた穴24に通して有る為、若しボル
トが緩んで回転した場合は、光ケーブル4は、溝付きナ
ット22の突起部25と、穴24の境目で剪断される。
此の実施例では、図3に示す様に、軸21と、ナット2
2の回転方向のすべての相対角度関係に対して、2個の
穴24の内、少なくとも一方は貫通出来る様に成ってい
る。In the embodiment shown in FIG. 2 and its side view 3, the shaft 21 is fastened to the body 23 by means of a grooved nut 22. Since the optical cable 4 is passed through the hole 24 provided at the right end of the threaded portion of the shaft 21, if the bolt is loosened and rotated, the optical cable 4 is provided with the projection 25 of the grooved nut 22 and the hole 24. It is sheared at the border of.
In this embodiment, as shown in FIG. 3, the shaft 21 and the nut 2
At least one of the two holes 24 can be penetrated for all relative angular relations of the two rotation directions.
【0016】図4は本発明装置を列車に使用する場合の
一実施例のブロック図を示す。図中、枠26は先頭車
両、27は中間車両、28は末尾車両、29は先頭車の
運転室を示す。30は、故障発生を知らせる警報装置、
インターロック装置等を含むコンピューター内蔵の制御
器で、31はその指令で作動する、光ファイバー用緑色
投光器、32は受光器、33と34は運転室付き車両の
前面に設けられた、各送信、受信用光ケーブル用コネク
ターであり、35と36は車体前面に設けられた、先端
にコネクターを設けた連結用光ケーブルで、図の様な先
頭車の場合は、それぞれ33と34に接続する。(更に
前車が連結される場合には、35と36は前車に接続さ
れる。)FIG. 4 shows a block diagram of an embodiment in which the device of the present invention is used in a train. In the figure, a frame 26 is a leading vehicle, 27 is an intermediate vehicle, 28 is a trailing vehicle, and 29 is a driver's cab of the leading vehicle. 30 is an alarm device for notifying the occurrence of a failure,
A controller with a built-in computer including an interlock device, 31 operates according to the command, a green light projector for optical fiber, 32 a light receiver, and 33 and 34 provided on the front of a vehicle with a driver's cab. Optical cable connectors for use, 35 and 36 are optical fibers for connection provided on the front surface of the vehicle body and provided with a connector at the tip. In the case of the leading car as shown in the figure, they are connected to 33 and 34, respectively. (If the front vehicle is further connected, 35 and 36 are connected to the front vehicle.)
【0017】37と38は、図1から3の実施例に示す
様に、被検知機械部品に光ファイバーケーブルを貫通さ
せた機械群で、37は若しケーブルが切断された場合
は、直ちに停車する必要のある機械群、38は整備場迄
運行を続けても差し支えないレベルの機械群である。Reference numerals 37 and 38 denote a machine group in which an optical fiber cable is penetrated through a detected mechanical component as shown in the embodiment of FIGS. 1 to 3, and 37 is immediately stopped if the cable is cut. Necessary machine group, 38 is a machine group of a level that can continue operation to the maintenance shop.
【0018】35、36、37、38、後述の42、4
3は、他の車両も同一構造に成っている。末尾車28の
後面では、光ファイバーケーブル39に依り、光信号を
折り返させる。35, 36, 37, 38, 42, 4 described later
3 has the same structure as other vehicles. On the rear surface of the tail wheel 28, an optical signal is returned by the optical fiber cable 39.
【0019】40はローカルエリアネットワークの回線
で、電気回線でもよく、特に光ケーブルを使用する必要
はない。41はその親器で、コンピューター30の端末
として機能し、42は子器で、主としてローカルエリア
のリスナー機能を持ち、コンピューター30から、親器
41のポーリングを経て指令を受け、光切替器43を制
御する。切替器43は、図示の状態が正常使用時であ
る。若し38の機械群内でケーブルが切断された場合に
は、43を42側に切替え、31の代わりに42内の橙
色投光器より送信を行う事に依り、運転を続行する。若
し末尾車28迄の全ての切替え器を切替えても、運転席
の受光器32に入力が得られない場合は、37側の機械
群の故障であるから、運転を中止させる。Reference numeral 40 denotes a line of a local area network, which may be an electric line, and it is not necessary to use an optical cable. Reference numeral 41 is its parent device, which functions as a terminal of the computer 30, and 42 is a child device, which mainly has a listener function in the local area, receives a command from the computer 30 through polling of the parent device 41, and sets the optical switch 43. Control. The switch 43 is in the normal use in the illustrated state. If the cable is cut in the 38 machine groups, 43 is switched to the 42 side, and the operation is continued by transmitting from the orange projector in 42 instead of 31. If no input is obtained from the light receiver 32 at the driver's seat even if all the switches up to the tail car 28 are switched, the operation is stopped because the machine group on the 37 side is out of order.
【0020】高速車では、末尾車28の後面は、カルマ
ン渦防止用の形状のカウルを装着するか、予め装着した
車両を連結しなければ危険である為、ケーブル39の着
脱はこれと連動させ、装着忘れを防止させる事も出来
る。In a high-speed vehicle, the rear surface of the trailing vehicle 28 is dangerous unless a cowl having a shape for preventing Karman vortex is attached or a previously attached vehicle is connected. Therefore, attachment / detachment of the cable 39 is interlocked with this. It is also possible to prevent forgetting to put it on.
【0021】[0021]
【発明の効果】本発明は、以上説明したように構成され
ているので、以下に記載されるような効果を発揮する。Since the present invention is constructed as described above, it has the following effects.
【0022】特に航空機、鉄道車両、自動車等の移動機
械は、一部を軽量化する事に依り、動力部も小型化出
来、其に依って、足回りも軽量化出来、それが再び動力
部の軽量化にフィードバックされると言う様な相乗効果
があり、其が、素材や燃料の節減につながる為。限界設
計が導入に依る、軽量化が求められている。機械に対す
る限界設計では、金属材料の疲労回数の有限領域を使用
する為、従来の定期点検、定期交換方式では必要な信頼
性、安全性の確保が困難であり、従って充分な限界設計
が出来なかった。本発装置は、信頼性、安全性を確保し
つつ、限界設計を可能とする物である。Particularly in mobile machines such as aircrafts, railway vehicles, and automobiles, the power unit can be downsized by reducing a part of the weight, and accordingly, the suspension can also be reduced in weight. There is a synergistic effect such as being fed back to the weight reduction of, which leads to the saving of materials and fuel. Due to the introduction of limit design, weight reduction is required. In the limit design of the machine, the finite region of the fatigue frequency of the metal material is used, so it is difficult to secure the required reliability and safety by the conventional regular inspection and regular replacement method, so it is not possible to make a sufficient limit design. It was This generator is a product that enables limit design while ensuring reliability and safety.
【0023】省力化の為、コンピューターに依る自動監
視、遠隔監視システムが導入され、長期の無人運転が可
能と成って来た為、比較的故障率が低く、従来保安係員
の定期点検でカバーして来た機械部分についても、本発
明装置が必要と成っている。For labor saving, a computer-based automatic monitoring and remote monitoring system was introduced, and long-term unmanned operation has become possible, so the failure rate is relatively low, and it has been covered by regular inspections by security personnel. The device of the present invention is also required for the mechanical parts that have come to the fore.
【図1】本故障検知装置の検知用光ケーブルを被検知機
械部品に装着する手法を示す図である。FIG. 1 is a diagram showing a method of mounting a detection optical cable of the failure detection device on a detected mechanical component.
【図2】同上の他の実施例である。FIG. 2 is another embodiment of the above.
【図3】図2の側面図FIG. 3 is a side view of FIG.
【図4】本発明装置を列車に使用する場合の一実施例の
ブロック図である。FIG. 4 is a block diagram of an embodiment in which the device of the present invention is used in a train.
1、2 機械部品 4、35、36、39 光ファイバーケーブル 3、13 ボルト 5、8、10、15、16、18、19、20 ケーブ
ル貫通用穴 26、27、28 車両 29 運転室 37、38 被検知機械群1, 2 Mechanical parts 4, 35, 36, 39 Optical fiber cable 3, 13 Bolt 5, 8, 10, 15, 16, 18, 19, 20 Cable through hole 26, 27, 28 Vehicle 29 Driver's cab 37, 38 Cover Detection machine group
Claims (1)
当該ボルト等の緩み、破損、および、それによる脱落等
の発生に依り、ついには結合された機械自体の緩み、脱
落に到る等、機械が故障する際の過程に於いて、相対変
移を起こす構成部品間に光ファイバーケーブルを設ける
手段。上記相対変移に依り上記ケーブルが切断される様
に、予め上記ケーブルを拘束する手段。上記ケーブルに
光を通す事により、ケーブルの切断や、ケーブル内通通
過後の光の光度の変化等を検知する手段。とを有する、
故障検知装置。1. A machine mechanically coupled with a bolt or the like,
Relative displacement occurs in the process of machine failure such as loosening or breakage of the bolt, etc., resulting in loosening or dropping of the machine itself that is connected due to occurrence of loosening, breakage, etc. A means of installing fiber optic cables between components. A means for preliminarily restraining the cable so that the cable is cut due to the relative displacement. A means for detecting the disconnection of the cable, the change in the luminous intensity of the light after passing through the cable, etc. by passing the light through the cable. Has and,
Failure detection device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36174092A JPH06186167A (en) | 1992-12-17 | 1992-12-17 | Trouble sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP36174092A JPH06186167A (en) | 1992-12-17 | 1992-12-17 | Trouble sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06186167A true JPH06186167A (en) | 1994-07-08 |
Family
ID=18474718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP36174092A Pending JPH06186167A (en) | 1992-12-17 | 1992-12-17 | Trouble sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06186167A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200051008A (en) | 2017-10-24 | 2020-05-12 | 카와사키 주코교 카부시키 카이샤 | Tightening member relaxation detection tag |
-
1992
- 1992-12-17 JP JP36174092A patent/JPH06186167A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200051008A (en) | 2017-10-24 | 2020-05-12 | 카와사키 주코교 카부시키 카이샤 | Tightening member relaxation detection tag |
US11499582B2 (en) | 2017-10-24 | 2022-11-15 | Kawasaki Railcar Manufacturing Co., Ltd. | Fastening member loosening detection tag |
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