JPS63279137A - Detection of abnormality within machine - Google Patents
Detection of abnormality within machineInfo
- Publication number
- JPS63279137A JPS63279137A JP11557087A JP11557087A JPS63279137A JP S63279137 A JPS63279137 A JP S63279137A JP 11557087 A JP11557087 A JP 11557087A JP 11557087 A JP11557087 A JP 11557087A JP S63279137 A JPS63279137 A JP S63279137A
- Authority
- JP
- Japan
- Prior art keywords
- casing
- heatpipe
- abnormality
- outside
- bearing
- 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.)
- Granted
Links
- 230000005856 abnormality Effects 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 title claims description 5
- 230000020169 heat generation Effects 0.000 claims description 12
- 238000000034 method Methods 0.000 claims description 10
- 229910000897 Babbitt (metal) Inorganic materials 0.000 abstract description 5
- 230000002159 abnormal effect Effects 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
- F02B3/00—Engines characterised by air compression and subsequent fuel addition
- F02B3/06—Engines characterised by air compression and subsequent fuel addition with compression ignition
Landscapes
- Testing Of Engines (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、ケーシングによって覆われた機械内部の異常
を検出する方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for detecting abnormalities inside a machine covered by a casing.
「従来の技術」
例えば、軸受においてオイル切れが生じた場合には発熱
が起こる。また、ピストンとンリンダの摺動面にカジリ
現象が生じたときにも発熱が起こる。さらに、内燃機関
の吸排気弁の異常の一つに吹気波は等があり、この場合
にも熱的影響が生じる。したがって、このような異常は
、当該箇所の発熱状況を検出することにより、早期発見
が可能となる。"Prior Art" For example, when a bearing runs out of oil, heat is generated. Heat generation also occurs when galling occurs on the sliding surfaces of the piston and the cylinder. Furthermore, one of the abnormalities in the intake and exhaust valves of internal combustion engines is air waves, and thermal effects also occur in this case. Therefore, such an abnormality can be detected early by detecting the heat generation situation at the relevant location.
従来、発熱状況を検出する方法としては、異常を検出す
る箇所に抵抗温度計や熱電対を取り付けて温度検出する
方法が主流であったが、最近、赤外線カメラを用いてコ
ンピュータ処理により温度分布を求め、それにより異常
を発見する形式のものら利用されつつある。Traditionally, the mainstream method for detecting heat generation was to attach a resistance thermometer or thermocouple to the location where an abnormality was detected. Even systems that detect abnormalities are being used.
「発明が解決しようとする問題点」
しかしながら、このような従来の異常検出方法には、そ
れぞれ次のような問題があった。"Problems to be Solved by the Invention" However, these conventional abnormality detection methods have the following problems.
前者の抵抗温度計や熱電対による方法は、結線が必要と
なり、メンテナンス時においてその結線が邪魔になるこ
とがある。The former method using a resistance thermometer or thermocouple requires wiring, which may get in the way during maintenance.
また、後者の赤外線カメラを用いる方法は、外部に露出
している部分の温度しか測定し得ず、ケーシングに覆わ
れている機械の内部の発熱状況までは検出できない。Furthermore, the latter method using an infrared camera can only measure the temperature of the parts exposed to the outside, and cannot detect the heat generation inside the machine that is covered by the casing.
本発明は上記事情に鑑みてなされたもので、結線の必要
がなく、かつ、ケーシングに覆われた機械内部の発熱状
況をケーシング外部から検出することのできる方法を提
供することを目的とする。The present invention has been made in view of the above circumstances, and it is an object of the present invention to provide a method that does not require wiring and can detect heat generation inside a machine covered by a casing from outside the casing.
「問題点を解決するための手段」
本発明は、ケーシングによって覆われた機械の内部の発
熱状態を検出することにより機械内部の異常を検出する
方法であり、機械内部の異常を検出する箇所にヒートパ
イプの一端を接触さけるとともに、ヒートパイプの他端
をケーシング外部に露出させ、同ヒートバイブの他端の
発熱状態を検出することを特徴としている。"Means for Solving Problems" The present invention is a method for detecting an abnormality inside a machine by detecting the heat generation state inside the machine covered by a casing. The heat pipe is characterized by avoiding contact with one end of the heat pipe, exposing the other end of the heat pipe to the outside of the casing, and detecting the state of heat generated at the other end of the heat vibe.
「作用 」
機械内部に異常が発生し、その箇所の温度か上がると、
ヒートバイブの一端にその熱が伝わる。``Function'' If an abnormality occurs inside the machine and the temperature at that location rises,
The heat is transferred to one end of the heat vibrator.
ヒートパイプは、内部に封入した熱媒体が状態変化（液
体←→気体）しながら移動することにより、熱伝達を行
うもので、優れた熱伝導性を持つ。A heat pipe transfers heat by moving a heat medium sealed inside while changing its state (liquid → gas), and has excellent thermal conductivity.
このため、前述のようにヒートパイプの一端が昇温する
と、ケーシング外に露出する他端もほとんど同時に同温
度に昇温する。したがって、このヒートパイプの露出端
を、赤外線カメラ等を用いて温度検出することにより、
ケーシングに覆われた機械内部の異常が発見できる。Therefore, when the temperature of one end of the heat pipe rises as described above, the temperature of the other end exposed outside the casing rises to the same temperature almost simultaneously. Therefore, by detecting the temperature of the exposed end of this heat pipe using an infrared camera or the like,
Abnormalities inside the machine covered by the casing can be discovered.
「実施例」
以下、本発明を用いてディーゼルエンジンの異常を検出
する場合の一実施例について第１図を参照して説明する
。"Embodiment" Hereinafter, an embodiment of detecting an abnormality in a diesel engine using the present invention will be described with reference to FIG.
図において符号ｌはエンジンケーシングで、該エンノン
ケーシング１の上部所定箇所には、シリンダライナ２が
圧入等の固定手段により強固に固定されている。シリン
ダライナ２の内部にはピストン３が上下方向摺動自在に
嵌装されている。ピストン３はコンロッド４を介してク
ランク軸５に連結されており、ピストンの往復運動はク
ランク軸５の回転運動に変えられる。In the figure, reference numeral 1 denotes an engine casing, and a cylinder liner 2 is firmly fixed to a predetermined upper part of the engine casing 1 by fixing means such as press fitting. A piston 3 is fitted inside the cylinder liner 2 so as to be slidable in the vertical direction. The piston 3 is connected to a crankshaft 5 via a connecting rod 4, and the reciprocating motion of the piston is converted into rotational motion of the crankshaft 5.
また、６はメタル７を介してクランク軸５を回転自在に
支持する軸受であり、エンジンケーシング１に一体的に
支持されている。A bearing 6 rotatably supports the crankshaft 5 via a metal 7, and is integrally supported by the engine casing 1.
以上は、通常のディーゼルエンジンの構成であり、この
場合のディーゼルエンジンにおいては、さらにシリンダ
ライナ２のクランク室Ｃ内に突出した下端２ａにヒート
パイプ１０の一端を接触させ、ヒートパイプＩＯの外方
端側をケーシング夏を貫通して外部に露出させている。The above is the configuration of a normal diesel engine, and in this case, one end of the heat pipe 10 is brought into contact with the lower end 2a of the cylinder liner 2 protruding into the crank chamber C, and the outer part of the heat pipe IO is The end side is exposed to the outside by passing through the casing.
また、前記軸受６には、別のヒートパイプＩＩの一端を
、軸受メタル７と接するように、軸受６の上部半割部分
６ａを貫通させて配設している。そして、このヒートパ
イプ１１も、上記と同様に他端を、エンジンケーシング
ｌの着脱自在な窓部１２を貫通させて外部に露出させて
いる。なお、１３はンール部材であって、ヒートパイプ
＋０１１１のケーシング１貫通部分を気密に保つもので
ある。Further, one end of another heat pipe II is provided in the bearing 6 so as to penetrate through the upper half portion 6a of the bearing 6 so as to be in contact with the bearing metal 7. The other end of this heat pipe 11 is also exposed to the outside by passing through the removable window 12 of the engine casing l, as described above. Note that 13 is a knob member that keeps the portion of the heat pipe +0111 that passes through the casing 1 airtight.
ここで、ヒートパイプ１０，１１は、アルミニューム等
で作ったバイブの内側にガラス繊維や網状の細い導線な
どで作ったウィツト材を張り、がっ、内部にフレオンな
どの熱媒体を詰めたものであり、銅の１０００倍から１
５００倍程度ε０う、優れた熱伝導性を有するものであ
る。Here, the heat pipes 10 and 11 are made of a vibrator made of aluminum or the like, covered with a material made of glass fiber or thin conductive wire in the form of a mesh, and filled with a heat medium such as freon inside. and 1000 times to 1
It has excellent thermal conductivity of about 500 times ε0.
このようなヒートパイプ１０Ｓ １１を設けることによ
り、ケーシングｌにより覆われた前記機械部品相互の摺
接部分に発生した熱を、ケーシングｌの表面まで導くこ
とができる。By providing such a heat pipe 10S 11, heat generated at the sliding contact portions of the mechanical components covered by the casing 1 can be guided to the surface of the casing 1.
したがって、ケーシングｌの外部において、ヒートパイ
プ１Ｏ１１１の露出端部を赤外線カメラ２０で観察する
ことにより、シリンダライナ２及び軸受メタル７に異常
な発熱があるがどうがか瞬時に分かり、当該箇所の異常
を早期発見できる。Therefore, by observing the exposed end of the heat pipe 1O111 with the infrared camera 20 on the outside of the casing l, you can instantly see if there is abnormal heat generation in the cylinder liner 2 and the bearing metal 7, and if there is an abnormality at that location. can be detected early.
なお、この場合、赤外線カメラ２ｏは、前記ヒートパイ
プ１０．１１の露出端部のいずれに対しても指向できる
よう揺動自在に配されている。また、この赤外線カメラ
２ｏには制御器２１が接続されており、赤外線カメラ２
ｏがら発せられる信号を基に、該カメラ２０で写した物
体の表面温度を、コンピュータ処理した後映像手段を介
して分布表示できるようになっている。よって、その映
像を観察することにより、摺接面のカジリや油切れ等の
異常を早期に発見できる。In this case, the infrared camera 2o is swingably arranged so that it can be directed toward any of the exposed ends of the heat pipe 10.11. Further, a controller 21 is connected to this infrared camera 2o, and the infrared camera 2o is connected to a controller 21.
Based on the signal emitted from the camera 20, the surface temperature of the object photographed by the camera 20 is processed by a computer and can then be displayed as a distribution via an image means. Therefore, by observing the image, abnormalities such as galling on the sliding surface or oil leakage can be detected at an early stage.
上記実施例においては、本発明を用いてディーゼルエン
ジンにおけるノリンダライナ及び軸受の異常を検出する
場合を説明したが、本発明は、ケーシングに覆われたｖ
Ａ械円内部発熱を伴う異常を検出する場合に全て適用で
きる。In the above embodiment, the case where the present invention is used to detect an abnormality in a nolinda liner and a bearing in a diesel engine has been described.
All methods can be applied to detect abnormalities accompanied by internal heat generation.
「発明の効果」
以」二説明したように、本発明の異常検出方法は、異常
を検出する箇所にヒートバイブの一端を接触させるとと
もに、ヒートパイプの他端をケーシング外部に露出させ
、同ヒートバイブの他端の発熱状態を検出するというも
のであるから、ケーシング外部から赤外線カメラ等の簡
易な手段で機械内部の異常を確実に検出することができ
る。また、ヒートパイプにより機械内部の発熱状態をケ
ーシング外部に反映させるから、異常検出箇所から導線
を取り出す必要がなくメンテナンスがやりやすくなる。``Effects of the Invention'' As explained hereinafter, the abnormality detection method of the present invention involves bringing one end of a heat vibrator into contact with the location where an abnormality is to be detected, and exposing the other end of the heat pipe to the outside of the casing. Since the heat generation state at the other end of the vibrator is detected, abnormalities inside the machine can be reliably detected from outside the casing using a simple means such as an infrared camera. In addition, since the heat pipe reflects the heat generation state inside the machine to the outside of the casing, there is no need to take out the conductor from the abnormality detection location, making maintenance easier.
第１図は本発明の一実施例を説明するために示すディー
ゼルエンジンの断面図である。
ｌ・・・・・・エンジンケーソング、２・・・・・・ン
リンダライナ、６・・・・・・軸受、７・・・・・・軸
受メタル、ｌ０１１１・・・・・・ヒートパイプ、２０
・・・・・・赤外線カメラ、２１・・・・・制御器。FIG. 1 is a sectional view of a diesel engine shown for explaining one embodiment of the present invention. l...Engine case song, 2...Nlinda liner, 6...Bearing, 7...Bearing metal, l0111...Heat pipe, 20
...Infrared camera, 21...Controller.
Claims (1)
出することにより機械内部の異常を検出する方法におい
て、機械内部の異常検出箇所にヒートパイプの一端を接
触させるとともに、ヒートパイプの他端をケーシング外
部に露出させ、同ヒートパイプの他端の発熱状態を検出
することを特徴とする機械内部の異常検出方法。In a method of detecting an abnormality inside a machine by detecting the heat generation state inside the machine covered by a casing, one end of the heat pipe is brought into contact with the abnormality detection location inside the machine, and the other end of the heat pipe is connected to the outside of the casing. A method for detecting an abnormality inside a machine, the method comprising exposing the heat pipe to the heat pipe and detecting the heat generation state at the other end of the heat pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11557087A JPS63279137A (en) | 1987-05-12 | 1987-05-12 | Detection of abnormality within machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11557087A JPS63279137A (en) | 1987-05-12 | 1987-05-12 | Detection of abnormality within machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63279137A true JPS63279137A (en) | 1988-11-16 |
| JPH0461299B2 JPH0461299B2 (en) | 1992-09-30 |
Family
ID=14665832
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11557087A Granted JPS63279137A (en) | 1987-05-12 | 1987-05-12 | Detection of abnormality within machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63279137A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016031315A (en) * | 2014-07-29 | 2016-03-07 | 太平洋マテリアル株式会社 | Coated structure, construction method of coated structure, and soundness confirmation method |
| WO2024023417A1 (en) * | 2022-07-26 | 2024-02-01 | Stellantis Auto Sas | Motor vehicle comprising a system for rendering images of the combustion engine to the user of said vehicle |
-
1987
- 1987-05-12 JP JP11557087A patent/JPS63279137A/en active Granted
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016031315A (en) * | 2014-07-29 | 2016-03-07 | 太平洋マテリアル株式会社 | Coated structure, construction method of coated structure, and soundness confirmation method |
| WO2024023417A1 (en) * | 2022-07-26 | 2024-02-01 | Stellantis Auto Sas | Motor vehicle comprising a system for rendering images of the combustion engine to the user of said vehicle |
| FR3138377A1 (en) * | 2022-07-26 | 2024-02-02 | Psa Automobiles Sa | Motor vehicle comprising a system for rendering images of the thermal engine to the user of said vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0461299B2 (en) | 1992-09-30 |
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