JPH02136467U - - Google Patents
Info
- Publication number
- JPH02136467U JPH02136467U JP4558189U JP4558189U JPH02136467U JP H02136467 U JPH02136467 U JP H02136467U JP 4558189 U JP4558189 U JP 4558189U JP 4558189 U JP4558189 U JP 4558189U JP H02136467 U JPH02136467 U JP H02136467U
- Authority
- JP
- Japan
- Prior art keywords
- indicator
- rectifier circuit
- series
- diode
- 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
- 238000001514 detection method Methods 0.000 claims description 7
- 230000035945 sensitivity Effects 0.000 claims description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 239000000284 extract Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 8
Landscapes
- Motor Or Generator Frames (AREA)
Description
第１図は本考案の第１の実施例を示し、検出コ
イルに接続された整流器に指示計と共にダイオー
ドを直列接続したベアリング摩耗量検出回路図、
第２図はサーチコイル出力を表示する特性線図、
第３図はベアリング摩耗量を表示する特性線図、
第４図ａはゲインを上げて感度を良くした状態を
示す説明図、第４図ｂはダイオードを用いて出力
を下げた状態を示す説明図、第５図は本考案の第
１の実施例のベアリング摩耗量検出回路の概略図
、第６図は本考案の第２の実施例を示し、整流回
路に定電圧ダイオードをモニタ表示計と共に直列
に接続したベアリング摩耗量検出回路の概略図で
あり、第７図は本考案の第３の実施例を示し、整
流回路にトランジスタをモニタ表示計と共に直列
に接続したベアリング摩耗量検出回路の概略図で
ある。
１０……検出コイル、１２……整流器、１４…
…可変抵抗器、１６……指示計、１８……ダイオ
ード、２０……定電圧ダイオード、２２……トラ
ンジスタ。
FIG. 1 shows a first embodiment of the present invention, which is a bearing wear amount detection circuit diagram in which a diode is connected in series with an indicator to a rectifier connected to a detection coil;
Figure 2 is a characteristic diagram showing the search coil output.
Figure 3 is a characteristic diagram showing the amount of bearing wear.
Fig. 4a is an explanatory diagram showing a state in which the gain is increased to improve sensitivity, Fig. 4b is an explanatory diagram showing a state in which the output is reduced using a diode, and Fig. 5 is an explanatory diagram showing a state in which the output is reduced by using a diode. FIG. 6 shows a second embodiment of the present invention, and is a schematic diagram of a bearing wear amount detection circuit in which a constant voltage diode is connected in series with a monitor display meter to a rectifier circuit. , FIG. 7 shows a third embodiment of the present invention, and is a schematic diagram of a bearing wear amount detection circuit in which a transistor is connected in series with a monitor display meter to a rectifier circuit. 10...detection coil, 12...rectifier, 14...
... Variable resistor, 16 ... Indicator, 18 ... Diode, 20 ... Constant voltage diode, 22 ... Transistor.
Claims (1)
出してこれを表示するベアリングモニタの指示計
において、 交流回転電機の鉄心にそれぞれ検出コイルを巻
装してこれらを直列に接続し、さらにこの検出コ
イルに可変抵抗器を備えた整流回路を接続し、こ
の整流回路にダイオードを指示計と共に直列に接
続してなり、ゲインを上げて感度をよくした後ダ
イオードにより全体出力を下げて零点を設定する
よう構成することを特徴とするベアリングモニタ
の指示計。 (2) 前記整流回路に定電圧ダイオードを指示計
と共に直列に接続してなる請求項１記載のベアリ
ングモニタの指示計。 (3) 前記整流回路にトランジスタを指示計と共
に直列に接続してなる請求項１記載のベアリング
モニタの指示計。[Scope of Claim for Utility Model Registration] (1) In a bearing monitor indicator that electrically extracts and displays the amount of wear in the radial direction of a bearing, a detection coil is wound around each iron core of an AC rotating electrical machine. A rectifier circuit equipped with a variable resistor is connected to this detection coil, and a diode is connected in series with an indicator to this rectifier circuit. After increasing the gain and improving the sensitivity, the diode A bearing monitor indicator characterized by being configured to lower the overall output and set the zero point. (2) The indicator for a bearing monitor according to claim 1, wherein a constant voltage diode is connected in series with the indicator to the rectifier circuit. (3) The indicator for a bearing monitor according to claim 1, wherein a transistor is connected in series with the indicator to the rectifier circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989045581U JPH0649094Y2 (en) | 1989-04-20 | 1989-04-20 | Bearing monitor indicator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989045581U JPH0649094Y2 (en) | 1989-04-20 | 1989-04-20 | Bearing monitor indicator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02136467U true JPH02136467U (en) | 1990-11-14 |
| JPH0649094Y2 JPH0649094Y2 (en) | 1994-12-12 |
Family
ID=31559890
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989045581U Expired - Lifetime JPH0649094Y2 (en) | 1989-04-20 | 1989-04-20 | Bearing monitor indicator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0649094Y2 (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854580A (en) * | 1981-09-29 | 1983-03-31 | 株式会社日立ホームテック | High frequency heater |
| JPS6052654A (en) * | 1983-08-26 | 1985-03-25 | 日産自動車株式会社 | Weft yarn storing apparatus of shuttleless loom |
-
1989
- 1989-04-20 JP JP1989045581U patent/JPH0649094Y2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5854580A (en) * | 1981-09-29 | 1983-03-31 | 株式会社日立ホームテック | High frequency heater |
| JPS6052654A (en) * | 1983-08-26 | 1985-03-25 | 日産自動車株式会社 | Weft yarn storing apparatus of shuttleless loom |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0649094Y2 (en) | 1994-12-12 |
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