JPS598178Y2 - Bearing temperature detection device - Google Patents
Bearing temperature detection deviceInfo
- Publication number
- JPS598178Y2 JPS598178Y2 JP1979073247U JP7324779U JPS598178Y2 JP S598178 Y2 JPS598178 Y2 JP S598178Y2 JP 1979073247 U JP1979073247 U JP 1979073247U JP 7324779 U JP7324779 U JP 7324779U JP S598178 Y2 JPS598178 Y2 JP S598178Y2
- Authority
- JP
- Japan
- Prior art keywords
- bearing
- metal
- temperature
- temperature detection
- detection device
- 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
Links
Landscapes
- Sliding-Contact Bearings (AREA)
Description
【考案の詳細な説明】
本考案は軸受部に温度検出端を取付けてなる軸受温度検
出装置に関し、特に強制潤滑を行う軸受の軸受温度検出
装置に関するものである。[Detailed Description of the Invention] The present invention relates to a bearing temperature detection device in which a temperature detection end is attached to a bearing portion, and particularly relates to a bearing temperature detection device for a bearing that performs forced lubrication.
ターボ圧縮機などに使用されている軸受が焼損するのを
防止するために、従来から軸受温度検出装置を設けて軸
受の状態を監視するようにしている。In order to prevent bearings used in turbo compressors and the like from burning out, a bearing temperature detection device has conventionally been provided to monitor the condition of the bearings.
従来の軸受温度検出装置は一般に軸受潤滑油の排油温度
を測定することにより行っている。Conventional bearing temperature detection devices generally measure the exhaust temperature of bearing lubricating oil.
しかし、これは軸受の温度を間接的に測定するものであ
るため誤差や時間遅れが大きいという欠点がある。However, since this method indirectly measures the temperature of the bearing, it has the disadvantage of large errors and time delays.
そこで最近では軸受部に直接温度検出端を取付けるよう
にして、軸受メタルの温度を直接測定し、軸受の状態を
監視するようにしたものが採用されはしめている。Therefore, recently, a system has been adopted in which a temperature detection end is attached directly to the bearing part to directly measure the temperature of the bearing metal and monitor the condition of the bearing.
この方法だと軸受温度を直接測定できるので、誤差が少
なく時間遅れも小さいため監視上優れている。This method allows the bearing temperature to be measured directly, so it is excellent for monitoring because there is little error and little time delay.
しかし、この方法では次のような欠点がある。However, this method has the following drawbacks.
即ち、例えば軸受メタルとして高速高荷重用のホワイト
メタルＷＪ２Ｂを使用する場合について述べると、まず
軸受部および軸受メタルを貫通して穿設された取付孔に
温度検出端を取付け、この温度検出端の表面にＷＪ２Ｂ
を融着して軸受面と同一の平面を形或する訳であるが、
このＷＪ２Ｂの融解温度は４００℃を越えるため、この
高温に耐え得る測温抵抗体（以下ＲＴＤと称す）などの
温度検出端を使用しなければならない。That is, for example, when using white metal WJ2B for high speed and high load as the bearing metal, first attach the temperature detection end to the mounting hole drilled through the bearing part and the bearing metal, and then WJ2B on the surface
is fused to form the same plane as the bearing surface,
Since the melting temperature of this WJ2B exceeds 400° C., it is necessary to use a temperature detection terminal such as a resistance temperature detector (hereinafter referred to as RTD) that can withstand this high temperature.
ところが、耐熱温度が４００℃以上のＲＴＤは一般に通
常使用温度（約１００℃）付近での特性（線型性）が悪
く、使用することができない。However, RTDs with a heat resistance temperature of 400° C. or higher generally have poor characteristics (linearity) near normal operating temperatures (about 100° C.) and cannot be used.
１００℃付近での特性の良いＲＴＤは耐熱温度が約３０
０℃である。An RTD with good characteristics at around 100℃ has a heat resistance temperature of about 30℃.
It is 0°C.
本考案は上述の事柄にもとすきなされたもので、軸受部
に温度検出端を直接取付けるようにして軸受メタルの温
度を直接測定するようにしたものにおいて、通常使用温
度付近での特性の良い温度検出端を使用することができ
るようにした軸受温度検出装置を提供することを目的と
するもので、軸受部および軸受メタルを貫通して穿設さ
れた取付孔に温度検出端を取付け、この温度検出端の耐
熱温度よりも融点の低い保護メタルを温度検出端の表面
に融着し、この保護メタルの表面に軸受メタルを融着し
てなるものである。The present invention has been developed in consideration of the above-mentioned problems, and is designed to directly measure the temperature of the bearing metal by attaching the temperature detection end directly to the bearing.It has good characteristics near the normal operating temperature. The purpose of this device is to provide a bearing temperature detection device in which a temperature detection end can be used. A protective metal having a melting point lower than the allowable temperature limit of the temperature sensing end is fused to the surface of the temperature sensing end, and a bearing metal is fused to the surface of this protective metal.
以下、本考案の軸受温度検出装置の実施例を図に従って
さらに具体的に説明する。Hereinafter, embodiments of the bearing temperature detection device of the present invention will be described in more detail with reference to the drawings.
図に示すように、軸受部（軸受パッド）１の軸受面には
軸受メタル２が融着されている。As shown in the figure, a bearing metal 2 is fused to the bearing surface of a bearing portion (bearing pad) 1. As shown in FIG.
軸受メタル２の材質としては高速高荷重用のホワイトメ
タルＷＪ２Ｂを用いている。As the material of the bearing metal 2, white metal WJ2B for high speed and high load is used.
軸受部１および軸受メタル２を貫通して取付孔３が穿設
されており、この取付孔３の軸受面近くには温度検出端
４が取付けられている。A mounting hole 3 is bored through the bearing portion 1 and the bearing metal 2, and a temperature detection end 4 is mounted near the bearing surface of the mounting hole 3.
この温度検出端４としては通常使用温度（約１００℃）
付近での特性の良い耐熱温度が３００℃程度のＲＴＤを
使用している。This temperature detection terminal 4 is normally used at a temperature of about 100°C.
An RTD with good characteristics and a heat resistance temperature of around 300°C is used.
温度検出端４の表面にはその耐熱温度よりも融点の低い
保護メタル５を融着しており、この実施例ではこの保護
メタル５として温度検出端４の耐熱温度よりも融点の低
いホワイトメタルＷＪ９（融点約２５０℃）を使用して
いる。A protective metal 5 having a melting point lower than the allowable temperature limit is fused to the surface of the temperature detecting end 4. In this embodiment, the protective metal 5 is a white metal WJ9 having a melting point lower than the allowable temperature limit of the temperature detecting end 4. (melting point approximately 250°C).
ＷＪ９という材質はＷＪ２Ｂと熱伝導度，耐力などの物
理的性質があまり変わらないという性質もある。The material WJ9 also has the property that physical properties such as thermal conductivity and yield strength are not much different from WJ2B.
保護メタル５の表面にはさらに軸受メタル２と同じ材質
の軸受メタル２′（この実施例ではＷＪ２Ｂ）を融着し
、この軸受メタル２′の表面は軸受メタル２の軸受面と
同一平面になるように表面仕上げが行われる。A bearing metal 2' made of the same material as the bearing metal 2 (WJ2B in this example) is further fused to the surface of the protective metal 5, and the surface of this bearing metal 2' becomes flush with the bearing surface of the bearing metal 2. The surface finishing is done as follows.
軸受メタル２′を保護メタル５の表面に融着するとき、
軸受メタル２′（ＷＪ２Ｂ）の温度は４００℃を越えて
いても、その温度よりも融点の低い保護メタル（ＷＪ９
）５は厚み向方に温度勾配を持つので、保護メタル５の
表面が融解するだけであり、したがってこの保護メタル
５により温度検出端４がその耐熱温度（約３００℃）以
上に上るのを防止して、この温度検出端４を保護するこ
とができる。When welding the bearing metal 2' to the surface of the protective metal 5,
Even if the temperature of the bearing metal 2' (WJ2B) exceeds 400℃, the protective metal (WJ9) with a lower melting point than that temperature
) 5 has a temperature gradient in the thickness direction, so only the surface of the protective metal 5 melts, and this protective metal 5 prevents the temperature detection end 4 from rising above its heat resistant temperature (approximately 300°C). Thus, the temperature detection end 4 can be protected.
しかも、温度検出端４としては耐熱温度が約３００℃程
度のものを使用しているので、通常使用温度（約１００
℃）付近での特性が良く、軸受温度の検出を精度良くか
つ時間遅れもなく行うことができる。Moreover, since the temperature detection end 4 is one with a heat resistance temperature of about 300°C, the normal operating temperature (about 100°C) is used.
The bearing temperature can be detected accurately and without time delay.
なお、上述の実施例において、温度検出端４の表面から
軸受メタル２の軸受面まで保護メタル５を設け、軸受メ
タル２′を設けないようにすること、即ち保護メタル（
ＷＪ ９） ５の一層盛りとすることも考えられるが、
このような構或にすると、運転中の軸受メタル２の温度
が例えば１２０℃という通常使用温度付近内であっても
保護メタル５はその一部が融解して陥没することがあり
、そのため軸受としての性能が低下してしまい、採用す
ることができない。In the above embodiment, the protective metal 5 is provided from the surface of the temperature detection end 4 to the bearing surface of the bearing metal 2, and the bearing metal 2' is not provided, that is, the protective metal (
WJ 9) It is also possible to increase the number of items in 5, but
With such a structure, even if the temperature of the bearing metal 2 during operation is within the normal operating temperature of 120°C, for example, a part of the protective metal 5 may melt and cave in, so that it cannot be used as a bearing. performance deteriorates and cannot be adopted.
本考案の軸受温度検出装置は以上説明したように、軸受
部に温度検出端を取付け、温度検出端の耐熱温度よりも
融点の低い保護メタルを温度検出端の表面に融着し、こ
の保護メタルの表面に軸受メタルを融着するように構威
したので、通常使用温度付近での特性の良い温度検出端
を選出して使用することができ、軸受温度の検出を精度
良くかつ時間遅れもなく行うことができるという効果が
ある。As explained above, in the bearing temperature detection device of the present invention, a temperature detection end is attached to the bearing part, a protective metal having a melting point lower than the heat-resistant temperature of the temperature detection end is fused to the surface of the temperature detection end, and this protective metal Since the bearing metal is fused to the surface of the bearing, it is possible to select and use a temperature detection end with good characteristics near the normal operating temperature, and the bearing temperature can be detected accurately and without time delay. The effect is that it can be done.
尚、上述した本考案装置の実施例では、軸受メタルとし
てＷＪ２Ｂ、保護メタルとしてＷＪ９、温度検出端とし
て耐熱温度が３００℃程度のＲＴＤを使用するようにし
ているが、必らずしもこれらに限るもので゛ないことは
当然で゛ある。In the embodiment of the device of the present invention described above, WJ2B is used as the bearing metal, WJ9 is used as the protective metal, and an RTD with a heat resistance of about 300°C is used as the temperature detection terminal, but these are not necessarily used. Of course, there is no limit.
図は本考案の軸受温度検出装置の実施例を示す縦断面図
である。
１・・・・・・軸受部（軸受パッド）、２，２′・・・
・・・軸受メタル、３・・・・・・取付孔、４・・・・
・・温度検出端（測温抵抗体（ＲＴＤ））、５・・・・
・・保護メタル。The figure is a longitudinal sectional view showing an embodiment of the bearing temperature detection device of the present invention. 1... Bearing part (bearing pad), 2, 2'...
...Bearing metal, 3...Mounting hole, 4...
...Temperature detection end (resistance temperature detector (RTD)), 5...
・Protective metal.
Claims (4)
孔に温度検出端を取付け、この温度検出端の耐熱温度よ
りも融点の低い保護メタルを温度検出端の表面に融着し
、この保護メタルの表面に軸受メタルを融着してなるこ
とを特徴とする軸受温度検出装置。1. The temperature sensing end is installed in the mounting hole drilled through the bearing and the bearing metal, and a protective metal with a melting point lower than the heat-resistant temperature of this temperature sensing end is fused to the surface of the temperature sensing end. A bearing temperature detection device characterized by having a bearing metal fused to the surface of the bearing.
ことを特徴とする実用新案登録請求の範囲第１項記載の
軸受温度検出装置。2. A bearing temperature detection device according to claim 1, characterized in that a resistance temperature detector (RTD) is used as a temperature detection terminal.
タルとして異種のホワイトメタルを使用したことを特徴
とする実用新案登録請求の範囲第１項または第２項記載
の軸受温度検出装置。3. The bearing temperature detection device according to claim 1 or 2, characterized in that a white metal is used as the bearing metal and a different type of white metal is used as the protective metal.
使用し、軸受メタルとしてＷＪ ２ Ｂ （ホワイトメ
タル）を使用し、保護メタルとしてＷＪ９（異種のホワ
イトメタル）を使用してなる実用新案登録請求の範囲第
２項または第３項記載の軸受温度検出装置。4. The scope of the utility model registration claim consists of using an RTD with a heat resistance temperature of approximately 300℃ as the temperature detection end, using WJ2B (white metal) as the bearing metal, and using WJ9 (different type of white metal) as the protective metal. The bearing temperature detection device according to item 2 or 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979073247U JPS598178Y2 (en) | 1979-06-01 | 1979-06-01 | Bearing temperature detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1979073247U JPS598178Y2 (en) | 1979-06-01 | 1979-06-01 | Bearing temperature detection device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55174134U JPS55174134U (en) | 1980-12-13 |
| JPS598178Y2 true JPS598178Y2 (en) | 1984-03-13 |
Family
ID=29306864
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1979073247U Expired JPS598178Y2 (en) | 1979-06-01 | 1979-06-01 | Bearing temperature detection device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS598178Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006113014A (en) * | 2004-10-18 | 2006-04-27 | Nsk Ltd | Bearing device with sensor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5318124A (en) * | 1972-06-19 | 1978-02-20 | Sargent Industries | Refuse collecting apparatus |
-
1979
- 1979-06-01 JP JP1979073247U patent/JPS598178Y2/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5318124A (en) * | 1972-06-19 | 1978-02-20 | Sargent Industries | Refuse collecting apparatus |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006113014A (en) * | 2004-10-18 | 2006-04-27 | Nsk Ltd | Bearing device with sensor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55174134U (en) | 1980-12-13 |
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