JPS6181153A - Brush wear monitoring device of rotary electric machine - Google Patents
Brush wear monitoring device of rotary electric machineInfo
- Publication number
- JPS6181153A JPS6181153A JP20154584A JP20154584A JPS6181153A JP S6181153 A JPS6181153 A JP S6181153A JP 20154584 A JP20154584 A JP 20154584A JP 20154584 A JP20154584 A JP 20154584A JP S6181153 A JPS6181153 A JP S6181153A
- Authority
- JP
- Japan
- Prior art keywords
- brush
- electromagnetic induction
- wear
- steel wire
- sheave
- 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
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
- H01R39/00—Rotary current collectors, distributors or interrupters
- H01R39/02—Details for dynamo electric machines
- H01R39/58—Means structurally associated with the current collector for indicating condition thereof, e.g. for indicating brush wear
Landscapes
- Motor Or Generator Current Collectors (AREA)
Abstract
Description
【発明の詳細な説明】 〔発明の技術分野〕 本発明は回転電機のブラシ摩耗監視装置に関する。[Detailed description of the invention] [Technical field of invention] The present invention relates to a brush wear monitoring device for a rotating electric machine.
直流機の生命とも言える整流装置部の中で、常に整流子
と摺動しながら通電３行なうブラシは摩耗という問題を
かかえている。直流機の使用者は、これを安定Ｃ二、経
済的に運転し続けるためＣ：ブラシの摩耗状態を定量的
に把握し、適当な又替時期を計画すること！要求される
。ブラシの摩耗を定量的に検出する方法として従来、ブ
ラシを整流子に押し続けるためのバネの支持アームにひ
ずみゲージを貼り付け、ブラシが摩耗するにつれてバネ
の押し付ｌナカが減少し、バネの支持アーム≦二生じる
ひずみも減少することｔ利用して行なう方法が見らｎる
が整流千部は火花か発生するような場所であり、電磁誘
導を受けるという欠点があった。In the rectifier section, which can be said to be the lifeblood of a DC machine, the brushes that constantly slide against the commutator and carry out the energization are subject to the problem of wear. In order to continue to operate the DC machine stably and economically, users of DC machines must quantitatively understand the state of wear of the brushes and plan an appropriate replacement period! required. Conventionally, as a method for quantitatively detecting brush wear, a strain gauge is attached to the support arm of the spring that keeps pushing the brush against the commutator. Although there is a method that takes advantage of the fact that the strain produced by the support arm is reduced when the support arm is ≦2, it has the disadvantage that the rectifying section is a place where sparks are likely to be generated and is subject to electromagnetic induction.
本発明はこのような状況に対し、電磁誘４を受けない、
取扱いも簡便なブラシ摩耗監視装置を提供すること全目
的とする。The present invention solves this situation by not receiving electromagnetic induction 4.
The overall purpose is to provide a brush wear monitoring device that is easy to handle.
上記目的を達成するために本発明では一端（：滑車を有
し、中間部に可動範囲全限定するためのストッパーを臀
し、他端が常（；ブラシに押しつけらする絶縁棒と、こ
の絶縁棒を所定の方向のみに滑動させるための案内と鋼
線！配する方間全快めるための滑車と、これらを保持、
固定するための固定板と、この固定板に一端全固定さｔ
全ての滑車Ｃ二掛けらｎる鋼線と、この鋼線の他端が接
続さｎる重錘式変位変換器とこｎからの出力信号を受け
てブラシ摩耗状態を判定する判定器とから成ることｔ特
徴とするブラシ摩耗監視装置ヲ購成し、ブラシの摩耗量
が鋼線の移動量としてあられｎるようにする。In order to achieve the above object, the present invention has a pulley at one end, a stopper in the middle to limit the full range of motion, and an insulating rod that is pressed against the brush at the other end. A guide and steel wire to slide the rod only in a specified direction! A pulley to make it slide in all directions, and a pulley to hold them.
A fixing plate for fixing and one end fully fixed to this fixing plate.
It consists of two steel wires connected to each pulley C, a weight type displacement transducer to which the other end of the steel wire is connected, and a determiner that receives the output signal from this and determines the state of brush wear. A brush wear monitoring device with this feature is purchased so that the amount of wear on the brush can be expressed as the amount of movement of the steel wire.
次Ｃ二本発明の一実施例金゛図を用いて説明する。 Next, one embodiment of the present invention will be described with reference to the drawings.
図は４ケ所のブラシに同時１：適用したもので、ｌは回
転電機の整流−Ｆ２と摺動して回転部と静止部間の磁気
的導通を計るためのブラシであり、こｎに絶濠棒３が接
触している。絶縁棒３にｔ′ｉブラシｌと反対側の位置
に滑車４ａが設（すられている。The figure shows the brushes applied to four brushes at the same time, where l is the brush that slides with the rectifier F2 of the rotating electric machine to measure magnetic continuity between the rotating part and the stationary part. Moat rod 3 is in contact. A pulley 4a is provided on the insulating rod 3 at a position opposite to the t'i brush 1.
固定板５１：も絶縁棒３をはさんで滑車同志の間隔か滑
車４ａの外径と等しくなるように取付けられた滑車４ｂ
があり、固定板５のＡ点（ニ一端を固定された細くて可
撓性ζ；型んだ鋼線６が全ての滑車に掛けられている。Fixed plate 51: A pulley 4b mounted with the insulating rod 3 in between so that the distance between the pulleys is equal to the outer diameter of the pulley 4a.
There is a fixed plate 5 at point A (a thin, flexible ζ with one end fixed; a shaped steel wire 6 is hung over all the pulleys.
鋼線６の他端には燈流子２から電磁誘導に影響さＩＥ、
ないよう十分離れた位置に設（すられた重一式変位及換
器７がこの近傍に設置さｎた滑車４ＣＹ介して接続され
ている。重錘式変位変換器７ｔま鋼ｇＩ６に接続された
重錘の位置全電気信号に変換するものでこの出力に、予
め入力さｒた正常摩耗時の回転′電機の運転時間に対す
るプラン摩耗量と比較し、異常摩耗の有無を判定すると
伴に残存運転可能時１ａｌを求める判定器８Ｃ二送らす
る。At the other end of the steel wire 6, there is an IE that is influenced by electromagnetic induction from the lantern 2,
A weight type displacement converter 7 is installed in the vicinity of this place and is connected via a pulley 4CY. This converts the position of the weight into an electric signal, and compares this output with the planned wear amount for the operating time of the electrical machine during normal wear, which has been input in advance, to determine the presence or absence of abnormal wear, and to calculate the remaining operating time. When it is possible, it is sent to the determiner 8C which determines 1al.
９は絶縁棒３をブラシｌが摩耗する方間のみζ二滑動さ
せると伴に可動範囲Ｙ 限定するための案内であり、１
０は絶縁棒３の第１因下方への伸び出し範囲を限定する
ために絶縁棒３に設けられたストッパーであり、最大可
動範囲りはプラシエの最大摩耗量より大きめＣ二設定さ
れている。9 is a guide for sliding the insulating rod 3 only in the direction where the brush l wears out and limiting the movable range Y;
0 is a stopper provided on the insulating rod 3 to limit the downward extension range of the insulating rod 3, and the maximum movable range is set to C2, which is larger than the maximum wear amount of the plush.
絶ｅ＃ ３ 、滑車４ａ＊４ｂ、案内９が取付けられた
固定板５は！Ｉ流子２の外周位置に強固に取付けらｎて
いる。The fixed plate 5 to which the fixed plate 3, the pulley 4a * 4b, and the guide 9 are attached is! It is firmly attached to the outer periphery of the flow element 2.
今１回転電機が長時間運転さね４ケのプランｌが全てδ
だ（す摩耗したとすると、各々の絶縁棒３＃求、常に重
錘式変位変換器内の重錘の２倍の重さＣ二相当する力で
各ブラシ１に押し付けられているので、ブラシｌに追随
してδだけ伸びるので１上鈑式変位斐換器７内の重錘の
移動量にブランｌの４個分であるから４倍となり、さら
に２倍すなわち８δとなる。重錘式変位変換器７ではこ
の変位ｔｖ電気信号Ｃ二変換してその信号１判定器ｆ３
Ｃ送る。判定器８ではこの時の変位量を正常摩耗時の
運転時間に対する摩耗量と比較し異常の有無の判定信号
と伴に、残存運転可能時間に対応する信号を発するので
ブラシの摩耗監視が可能となる。しかして、電磁誘導源
に近い部分は全て機械式として変位変換器を離して設置
することｔ可能としたため電磁誘導を受けない。また、
ブラシｌを交替する場合、固定板５を敗外せば良く、こ
の時絶縁［３はストッパー１０ン有しているため完全に
抜は出ることがなく、固定板５と一体として収扱うこと
ができるから、取外し、再取付が容易に行なえる。Now, the rotating electric machine is running for a long time, and all 4 plans are δ.
(If it is worn out, each insulating rod 3 is always pressed against each brush 1 with a force equivalent to twice the weight C2 of the weight in the weight-type displacement transducer.) Since it follows l and extends by δ, the amount of movement of the weight in the top plate displacement converter 7 is equal to four blanks l, so it becomes 4 times, and then doubles, that is, 8δ. Weight type The displacement converter 7 converts this displacement tv electric signal C into two and passes the signal 1 to a judger f3.
Send C. The determination device 8 compares the amount of displacement at this time with the amount of wear for the operating time during normal wear, and issues a signal corresponding to the remaining operating time as well as a signal for determining the presence or absence of an abnormality, making it possible to monitor brush wear. Become. Therefore, all the parts near the source of electromagnetic induction are made mechanical so that the displacement transducer can be installed at a distance, so that it is not subjected to electromagnetic induction. Also,
When replacing the brush 1, all you have to do is remove the fixing plate 5. At this time, the insulating plate 3 has a stopper 10, so it will not come out completely and can be handled as one with the fixing plate 5. It can be easily removed and reinstalled.
そして、変位変換器を重錘式としたため、どのブラシｌ
に対しても、またいかなる摩耗量に対しても関係なく、
一定の力で絶縁棒３を押し付けているため、本来のブラ
シ乞押すバネ力の設定の同上Ｃ二も寄与する。Since the displacement converter is a weight type, which brush l
Regardless of the amount of wear,
Since the insulating rod 3 is pressed with a constant force, C2, which is the original spring force setting for pushing the brush, also contributes.
なお前記実施例では重錘式変位変換器を採用したが、バ
ネ式変換器とすることも可能で、この場合には、絶縁棒
、３の押し付は力がプランの摩耗量に対して少し変化す
る。その他、監視対象ブラシ数の選定等１本発明の要旨
！変更しない範囲で神々の変更かり能である。Although a weight-type displacement transducer was used in the above embodiment, a spring-type displacement transducer may also be used. Change. In addition, selection of the number of brushes to be monitored, etc. 1. Summary of the present invention! It is Noh that changes the gods as long as they are not changed.
以上説明したように本発明は滑車を用いて反位検出部を
電磁誘導源から遠ざける方式を採用しているので電磁誘
導の影響ン受けない、またブラシの交替も容易ζ二行な
うことのできるブラシの摩耗監視装置！提供することが
できる。As explained above, the present invention uses a pulley to move the anti-position detection part away from the electromagnetic induction source, so it is not affected by electromagnetic induction, and the brushes can be easily replaced. Wear monitoring device! can be provided.
図に本発明の一実施例を示す立面図である。
ｌ・・・ブラン ２・・・整流子３・・・絶
＠ 棒４ｇ、４Ｊ４ｃ 、、・滑車５・・・固定板
６・・・鋼線７・・・重錘式変位変換器 ８・
・・判定器９・・・案内 １ｏ・・・スト
ッパーＬ・・・最大可動４曲
代理人 弁理士 則 近 憲 佑
（ほか１名ン1 is an elevational view showing an embodiment of the present invention; FIG. l... Blanc 2... Commutator 3... Absolute @ Rod 4g, 4J4c,... Pulley 5... Fixed plate
6... Steel wire 7... Weight type displacement transducer 8.
...Determiner 9...Guide 1o...Stopper L...Maximum movable 4 songs Agent Patent attorney Noriyuki Chika (and 1 other person)
Claims (1)
ーを有し他端が常にブラシに押しつけられる絶縁棒と、
この絶縁棒を所定の方向のみに滑動させる鋼線を配する
滑車と、これらを保持・固定する固定板と、この固定板
に一端を固定され全ての滑車に掛けられる鋼線と、この
鋼線の他端が接続される重錘式変位変換器と、これから
の出力信号を受けてブラシ摩耗状態を判定する判定器と
から成る回転電機のブラシ摩耗監視装置。an insulating rod that has a pulley at one end, a stopper that limits the range of movement in the middle, and whose other end is always pressed against the brush;
A pulley with a steel wire that slides this insulating rod only in a predetermined direction, a fixing plate that holds and fixes these, a steel wire that has one end fixed to this fixing plate and is hung around all the pulleys, and this steel wire. A brush wear monitoring device for a rotating electrical machine, comprising a weight type displacement converter to which the other end is connected, and a determiner that receives an output signal from the weight type displacement converter and determines the state of brush wear.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20154584A JPS6181153A (en) | 1984-09-28 | 1984-09-28 | Brush wear monitoring device of rotary electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20154584A JPS6181153A (en) | 1984-09-28 | 1984-09-28 | Brush wear monitoring device of rotary electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6181153A true JPS6181153A (en) | 1986-04-24 |
Family
ID=16442823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20154584A Pending JPS6181153A (en) | 1984-09-28 | 1984-09-28 | Brush wear monitoring device of rotary electric machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6181153A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0360197A2 (en) * | 1988-09-21 | 1990-03-28 | Schunk Metall und Kunststoff GmbH | Brush holder |
-
1984
- 1984-09-28 JP JP20154584A patent/JPS6181153A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0360197A2 (en) * | 1988-09-21 | 1990-03-28 | Schunk Metall und Kunststoff GmbH | Brush holder |
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