JPS56101360A - Life detector for brush on electric rotary machine - Google Patents
Life detector for brush on electric rotary machineInfo
- Publication number
- JPS56101360A JPS56101360A JP211180A JP211180A JPS56101360A JP S56101360 A JPS56101360 A JP S56101360A JP 211180 A JP211180 A JP 211180A JP 211180 A JP211180 A JP 211180A JP S56101360 A JPS56101360 A JP S56101360A
- Authority
- JP
- Japan
- Prior art keywords
- brushes
- brush
- magnet
- rotary machine
- electric rotary
- 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
PURPOSE:To detect the limit of brush life before developing to the critical abrasion by a method wherein a permanent magnet is attached to the upper part of each brush and a magnet-detecting element is provided at the lower part of the allowable shifting region, thereby enabling to detect the magnetism of the permanent magnet. CONSTITUTION:Permanent magnets 17A and 17B are attached to the upper part of the brushes 12 and 13, and the brushes are pressed by a spring 21 through the intermediary of said magnets 17A and 17B. Between the brushes 12 and 13, a magnet-detecting element such as a lead switch 7 or the like is provided somewhere at the lower part of the allowable shifting region of the brushes. The lead switch 7 has the circuit constitution wherein a brush life indicating light is lit when the switch detects magnetism and the contact is closed. Thus, the brush life can be known to the operator before the brushes 12 and 13 attain the critical abrasive condition, thereby allowing to prevent the occurrence of an accident.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP211180A JPS56101360A (en) | 1980-01-14 | 1980-01-14 | Life detector for brush on electric rotary machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP211180A JPS56101360A (en) | 1980-01-14 | 1980-01-14 | Life detector for brush on electric rotary machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS56101360A true JPS56101360A (en) | 1981-08-13 |
Family
ID=11520232
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP211180A Pending JPS56101360A (en) | 1980-01-14 | 1980-01-14 | Life detector for brush on electric rotary machine |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS56101360A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02104765U (en) * | 1989-02-03 | 1990-08-21 | ||
| FR2692409A1 (en) * | 1992-06-12 | 1993-12-17 | Firlabo Sa | Wear detection appts. for electrical rotating machine brushes - Uses magnetic slug mounted on brush with proximity detector in brush holder to trigger alarm. |
| EP2071681A3 (en) * | 2007-12-13 | 2012-03-28 | Alstom Technology Ltd | Device for monitoring brushes, especially slip ring or commutator brushes, on electric machines |
| JP2018518933A (en) * | 2015-06-01 | 2018-07-12 | カッツフォース インコーポレイテッドＣｕｔｓｆｏｒｔｈ，Ｉｎｃ． | Brush holder and vibration monitoring |
| US11211757B2 (en) | 2018-10-04 | 2021-12-28 | Cutsforth, Inc. | System and method for monitoring the status of one or more components of an electrical machine |
| US11355991B2 (en) | 2018-10-04 | 2022-06-07 | Cutsforth, Inc. | System and method for monitoring the status of one or more components of an electrical machine |
-
1980
- 1980-01-14 JP JP211180A patent/JPS56101360A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02104765U (en) * | 1989-02-03 | 1990-08-21 | ||
| FR2692409A1 (en) * | 1992-06-12 | 1993-12-17 | Firlabo Sa | Wear detection appts. for electrical rotating machine brushes - Uses magnetic slug mounted on brush with proximity detector in brush holder to trigger alarm. |
| EP2071681A3 (en) * | 2007-12-13 | 2012-03-28 | Alstom Technology Ltd | Device for monitoring brushes, especially slip ring or commutator brushes, on electric machines |
| JP2018518933A (en) * | 2015-06-01 | 2018-07-12 | カッツフォース インコーポレイテッドＣｕｔｓｆｏｒｔｈ，Ｉｎｃ． | Brush holder and vibration monitoring |
| US10348047B2 (en) | 2015-06-01 | 2019-07-09 | Cutsforth, Inc. | Brush wear and vibration monitoring |
| US11050205B2 (en) | 2015-06-01 | 2021-06-29 | Cutsforth, Inc. | Brush wear and vibration monitoring |
| US11211757B2 (en) | 2018-10-04 | 2021-12-28 | Cutsforth, Inc. | System and method for monitoring the status of one or more components of an electrical machine |
| US11355991B2 (en) | 2018-10-04 | 2022-06-07 | Cutsforth, Inc. | System and method for monitoring the status of one or more components of an electrical machine |
| US11616413B2 (en) | 2018-10-04 | 2023-03-28 | Cutsforth, Inc. | System and method for monitoring the status of one or more components of an electrical machine |
| US11949314B2 (en) | 2018-10-04 | 2024-04-02 | Cutsforth, Inc. | System and method for monitoring the status of one or more components of an electrical machine |
| US12003067B2 (en) | 2018-10-04 | 2024-06-04 | Cutsforth, Inc. | System and method for monitoring the status of one or more components of an electrical machine |
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