JPH08285181A - Foreign matter detecting device for gear box - Google Patents
Foreign matter detecting device for gear boxInfo
- Publication number
- JPH08285181A JPH08285181A JP8373295A JP8373295A JPH08285181A JP H08285181 A JPH08285181 A JP H08285181A JP 8373295 A JP8373295 A JP 8373295A JP 8373295 A JP8373295 A JP 8373295A JP H08285181 A JPH08285181 A JP H08285181A
- Authority
- JP
- Japan
- Prior art keywords
- lubricating oil
- foreign matter
- gear box
- phototube
- gearbox
- 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
- Length Measuring Devices By Optical Means (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- General Details Of Gearings (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、ヘリコプタ用ギヤボッ
クス、ジェットエンジン用ギヤボックス、発電装置用ギ
ヤボックス等のギヤボックスに用いられる異物検知装置
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foreign matter detecting device used in a gearbox such as a helicopter gearbox, a jet engine gearbox, and a power generator gearbox.
【０００２】[0002]
【従来の技術】従来のギヤボックス用異物検知装置、通
称チップデテクターは、磁性体異物の有無のみを検知す
るものである。この従来のギヤボックス用異物検知装置
では、図２に示すように、ギヤボックスからの潤滑油配
管５の内部に磁石１１を配置している。磁石１１に接し
て板状の絶縁体１２を設け、更にその外側に互いに若干
の間隔をおいて接点１４，１４′を取付け、接点１４，
１４′と絶縁体１２の磁石１１の反対側の面を潤滑油配
管５内の潤滑油に接するように配置する。2. Description of the Related Art A conventional foreign matter detector for a gear box, commonly called a chip detector, detects only the presence or absence of a foreign matter in a magnetic material. In this conventional gear box foreign matter detection device, as shown in FIG. 2, a magnet 11 is arranged inside the lubricating oil pipe 5 extending from the gear box. A plate-like insulator 12 is provided in contact with the magnet 11, and contacts 14 and 14 'are attached to the outside of the plate 11 at a slight distance from each other.
14 'and the surface of the insulator 12 on the opposite side of the magnet 11 are arranged so as to be in contact with the lubricating oil in the lubricating oil pipe 5.
【０００３】このギヤボックス用異物検知装置において
は、潤滑油配管５の内部を磁性体異物が通ると、磁石１
１に吸い寄せられて磁性体異物１３が絶縁体１２のまわ
りに付着する。この磁性体異物１３が多数になり、また
はこの磁性異物体１３が大きな破片であると、接点１
４，１４′が導通し、電源１５によってランプ１６が点
灯して警報を発する。In this foreign matter detecting device for a gear box, when a magnetic foreign matter passes through the inside of the lubricating oil pipe 5, the magnet 1
The magnetic foreign substance 13 is attracted to the magnetic substance 1 and adheres around the insulator 12. If the number of the magnetic foreign matters 13 is large or the magnetic foreign matters 13 are large fragments, the contact 1
4, 14 'become conductive, and the lamp 16 is turned on by the power supply 15 to give an alarm.
【０００４】この場合異物の大きさと数は不明であるの
で、ランプ１６が点灯するとギヤボックスの運転を休止
し、潤滑油配管５から潤滑油を取り出して、異物の大き
さと数を別途分析して運転続行可か否か判定する。ま
た、この従来の装置では非磁性体異物を検知することは
できない。In this case, since the size and the number of the foreign matter are unknown, the operation of the gear box is stopped when the lamp 16 is turned on, the lubricating oil is taken out from the lubricating oil pipe 5, and the size and the number of the foreign matter are separately analyzed. Determine whether it is possible to continue operation. Further, this conventional device cannot detect non-magnetic foreign matter.
【０００５】[0005]
【発明が解決しようとする課題】前記の従来のギヤボッ
クス用異物検知装置（チップデテクター）では、異物の
有無を検知しうるのみであり、異物が異常であるか否か
の検討のためには、潤滑油を採取して異物の大きさと数
を調べて初めて異常有無がわかる。また、磁性体の異物
しか検知することができず、非磁性体の異物は検知する
ことができない。The above-mentioned conventional foreign matter detection device for a gear box (chip detector) can only detect the presence or absence of a foreign matter, and it is necessary to examine whether or not the foreign matter is abnormal. Abnormality can be known only by collecting the lubricating oil and examining the size and number of foreign substances. Further, only foreign matter of magnetic material can be detected, and foreign matter of non-magnetic material cannot be detected.
【０００６】本発明は、以上の問題点を解決することが
できるギヤボックス用異物検知装置を提供しようとする
ものである。The present invention is intended to provide a foreign matter detection device for a gear box which can solve the above problems.
【０００７】[0007]
【課題を解決するための手段】本発明のギヤボックス用
異物検知装置は、ギヤボックスから潤滑油を取出してギ
ヤボックスに循環させる潤滑油配管、前記潤滑油配管に
装着され潤滑油内の異物を検知する光電管装置、及び前
記光電管装置の信号を受けて潤滑油内の異物の大きさと
量を分析するアナライザを備えている。SUMMARY OF THE INVENTION A foreign matter detecting device for a gearbox according to the present invention includes a lubricating oil pipe for extracting lubricating oil from the gearbox and circulating the lubricating oil in the gearbox, and a foreign substance in the lubricating oil attached to the lubricating oil pipe. A phototube device for detection and an analyzer for receiving the signal from the phototube device and analyzing the size and amount of foreign matter in the lubricating oil are provided.
【０００８】[0008]
【作用】本発明では、ギヤボックス内のギヤと軸受等の
潤滑と冷却に用いられる潤滑油内の異物は、潤滑油と共
に潤滑油をギヤボックスから取出してギヤボックスに循
環させる潤滑油配管内を流れ、光電管装置によって検知
される。光電管装置の信号はアナライザに入力されて潤
滑油内の異物の大きさと量がリアルタイムに検知され
る。In the present invention, foreign matter in the lubricating oil used for lubrication and cooling of the gears and bearings in the gearbox, is taken out of the lubricating oil pipe for taking out the lubricating oil from the gearbox together with the lubricating oil and circulating it in the gearbox. Flow, detected by photocell device. The signal from the phototube device is input to the analyzer, and the size and amount of foreign matter in the lubricating oil are detected in real time.
【０００９】また、前記のように光電管装置によって潤
滑油内の異物を検知しているので、異物が磁性体であっ
ても非磁性体であってもこれを検知することができる。Since the photoelectric tube device detects foreign matter in the lubricating oil as described above, it can be detected whether the foreign matter is a magnetic substance or a non-magnetic substance.
【００１０】[0010]
【実施例】本発明の一実施例を、図１によって説明す
る。１は、ギヤ４と同ギヤ４を保持するための軸受３を
収容したギヤボックスのハウジングである。ギヤ４と軸
受３を潤滑するために潤滑油が用いられ、ハウジング１
の底部に溜った潤滑油２は、ハウジング１の底部に開口
する潤滑油配管５によって取出され、ポンプ６において
取出された潤滑油２が昇圧された上潤滑油配管５ａを通
ってハウジング１へ循環し潤滑油ジェット７となってギ
ヤ４と軸受３に潤滑油が供給されるようになっている。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described with reference to FIG. Reference numeral 1 denotes a gear box housing which houses a gear 4 and a bearing 3 for holding the gear 4. Lubricating oil is used to lubricate the gear 4 and the bearing 3, and the housing 1
The lubricating oil 2 collected at the bottom of the housing 1 is taken out by the lubricating oil pipe 5 opening at the bottom of the housing 1, and the lubricating oil 2 taken out by the pump 6 is circulated to the housing 1 through the pressurized upper lubricating oil pipe 5a. Then, it becomes a lubricating oil jet 7 and the lubricating oil is supplied to the gear 4 and the bearing 3.
【００１１】前記潤滑配管５には、光電管発振器８と光
電管受信器９よりなる光電管装置が装着されていて、同
光電管受信器９はアナライザ１０に接続されており、ま
たアナライザ１０はランプ１６に接続されている。A phototube device comprising a phototube oscillator 8 and a phototube receiver 9 is mounted on the lubricating pipe 5, the phototube receiver 9 is connected to an analyzer 10, and the analyzer 10 is connected to a lamp 16. Has been done.
【００１２】本実施例においては、潤滑油ジェット７と
なってギヤ４及び軸受３に当った潤滑油は自然落下して
ハウジング２の底部に戻る。ギヤ４或いは軸受３等に異
常があって異物が発生すると、異物は潤滑油と共にハウ
ジング２の底部に自然落下し潤滑油配管５に流れてく
る。前記潤滑油配管５には光電管発振器８と光電管受信
器９が装着されているので、潤滑油配管５の中を流れる
異物を常時検知することができる。In this embodiment, the lubricating oil jet 7, which has hit the gear 4 and the bearing 3, falls naturally to the bottom of the housing 2. When a foreign matter is generated due to an abnormality in the gear 4, the bearing 3, or the like, the foreign matter naturally falls on the bottom of the housing 2 together with the lubricating oil and flows into the lubricating oil pipe 5. Since the phototube oscillator 8 and the phototube receiver 9 are mounted on the lubricating oil pipe 5, foreign matter flowing in the lubricating oil pipe 5 can be constantly detected.
【００１３】光電管受信器９から異物の信号は、アナラ
イザ１０へ送られ、同アナライザ１０においてリアルタ
イムに異物の大きさと数が分析される。かつ、アナライ
ザ１０には、あらかじめ合格異物分布データが入力され
ていて、これに基いて合否判定が行われる。不合格の場
合には、アナライザ１０の信号によってランプ１６を点
灯させ警報を発する。The signal of the foreign matter is sent from the phototube receiver 9 to the analyzer 10, and the analyzer 10 analyzes the size and the number of the foreign matter in real time. In addition, the acceptable foreign matter distribution data is input to the analyzer 10 in advance, and the acceptance / rejection determination is performed based on this. In the case of failure, the lamp 16 is turned on by a signal from the analyzer 10 to give an alarm.
【００１４】また、潤滑油配管５を流れる異物は光電管
装置によって検知されるので、磁性体、非磁性体を問わ
ず異物を検知することができる。Further, since the foreign matter flowing through the lubricating oil pipe 5 is detected by the photoelectric tube device, the foreign matter can be detected regardless of whether it is a magnetic substance or a non-magnetic substance.
【００１５】[0015]
【発明の効果】ギヤボックスにおいて、歯の欠損や摩耗
又は軸受の異常摩耗や材料の欠落があると、瞬時にギヤ
ボックスの破壊に至ることがある。本発明では、ギヤボ
ックスから潤滑油を取出してギヤボックスに循環させる
潤滑油配管に光電管装置を装着してギヤボックス内に発
生する摩耗粉や金属片等の異物を常に監視し、かつ光電
管装置の信号を受けるアナライザで異物の大きさと数を
リアルタイムにモニターしており、ギヤボックスの破壊
を未然に防止することができる。EFFECTS OF THE INVENTION In the gear box, if the tooth is missing or worn, the bearing is abnormally worn, or the material is missing, the gear box may be instantly broken. In the present invention, the phototube device is attached to the lubricating oil pipe that takes out the lubricating oil from the gearbox and circulates the gearbox to constantly monitor foreign matter such as abrasion powder and metal pieces generated in the gearbox, and The analyzer that receives the signals monitors the size and number of foreign objects in real time, and can prevent damage to the gearbox.
【図１】本発明の一実施例の説明図である。FIG. 1 is an explanatory diagram of an embodiment of the present invention.
【図２】従来のギヤボックス用異物検知装置の説明図で
ある。FIG. 2 is an explanatory diagram of a conventional foreign matter detection device for a gear box.
１ ギヤボックスのハウジング ２ 潤滑油溜 ３ 軸受 ４ ギヤ ５ 潤滑油配管 ５ａ 潤滑油配管 ６ ポンプ ７ 潤滑油ジェット ８ 光電管発振器 ９ 光電管受信器 １０ アナライザ １１ 磁石 １２ 絶縁体 １３ 異物 １４，１４′ 接点 １５ 電源 １６ ランプ 1 Gearbox Housing 2 Lubricating Oil Reservoir 3 Bearing 4 Gear 5 Lubricating Oil Pipe 5a Lubricating Oil Pipe 6 Pump 7 Lubricating Oil Jet 8 Phototube Oscillator 9 Phototube Receiver 10 Analyzer 11 Magnet 12 Insulator 13 Foreign Material 14, 14 'Contact 15 Power Supply 16 lamps
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 ＦＩ 技術表示箇所 Ｇ０６Ｍ 11/00 Ｇ０６Ｍ 11/00 Ｄ ─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification code Internal reference number FI Technical display location G06M 11/00 G06M 11/00 D
Claims (1)
ボックスに循環させる潤滑油配管、前記潤滑油配管に装
着され潤滑油内の異物を検知する光電管装置、及び前記
光電管装置の信号を受けて潤滑油内の異物の大きさと量
を分析するアナライザを備えたことを特徴とするギヤボ
ックス用異物検知装置。1. A lubricating oil pipe for extracting lubricating oil from a gearbox and circulating it through the gearbox, a photoelectric tube device mounted on the lubricating oil pipe for detecting foreign matter in the lubricating oil, and lubricated by receiving a signal from the photoelectric tube device. A foreign matter detection device for a gear box, comprising an analyzer for analyzing the size and amount of foreign matter in oil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8373295A JPH08285181A (en) | 1995-04-10 | 1995-04-10 | Foreign matter detecting device for gear box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8373295A JPH08285181A (en) | 1995-04-10 | 1995-04-10 | Foreign matter detecting device for gear box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08285181A true JPH08285181A (en) | 1996-11-01 |
Family
ID=13810702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8373295A Pending JPH08285181A (en) | 1995-04-10 | 1995-04-10 | Foreign matter detecting device for gear box |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08285181A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002286585A (en) * | 2001-03-28 | 2002-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | Abrasion test device for gear |
| JP2003534894A (en) * | 2000-01-21 | 2003-11-25 | ゼネラル・エレクトリック・カンパニイ | Method and apparatus for performing a cleanliness inspection of a final gearbox assembly |
| JP2004361102A (en) * | 2003-06-02 | 2004-12-24 | Ono Sokki Co Ltd | Chassis dynamometer |
| JP2008139188A (en) * | 2006-12-04 | 2008-06-19 | Ntn Corp | Lubricant degradation detector of bearing |
| JP2011053087A (en) * | 2009-09-02 | 2011-03-17 | Tokyo Electric Power Co Inc:The | Inspection method of machine |
| WO2015122224A1 (en) * | 2014-02-12 | 2015-08-20 | Ntn株式会社 | State detection device for wind power generation device |
-
1995
- 1995-04-10 JP JP8373295A patent/JPH08285181A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003534894A (en) * | 2000-01-21 | 2003-11-25 | ゼネラル・エレクトリック・カンパニイ | Method and apparatus for performing a cleanliness inspection of a final gearbox assembly |
| JP2002286585A (en) * | 2001-03-28 | 2002-10-03 | Ishikawajima Harima Heavy Ind Co Ltd | Abrasion test device for gear |
| JP4513223B2 (en) * | 2001-03-28 | 2010-07-28 | 株式会社Ｉｈｉ | Gear wear test equipment |
| JP2004361102A (en) * | 2003-06-02 | 2004-12-24 | Ono Sokki Co Ltd | Chassis dynamometer |
| JP2008139188A (en) * | 2006-12-04 | 2008-06-19 | Ntn Corp | Lubricant degradation detector of bearing |
| JP2011053087A (en) * | 2009-09-02 | 2011-03-17 | Tokyo Electric Power Co Inc:The | Inspection method of machine |
| WO2015122224A1 (en) * | 2014-02-12 | 2015-08-20 | Ntn株式会社 | State detection device for wind power generation device |
| CN106030101A (en) * | 2014-02-12 | 2016-10-12 | Ntn株式会社 | State detection device for wind power generation device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A02 | Decision of refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A02 Effective date: 20001114 |