JPH01170385A - Dc servo motor - Google Patents

Dc servo motor

Info

Publication number
JPH01170385A
JPH01170385A JP62326876A JP32687687A JPH01170385A JP H01170385 A JPH01170385 A JP H01170385A JP 62326876 A JP62326876 A JP 62326876A JP 32687687 A JP32687687 A JP 32687687A JP H01170385 A JPH01170385 A JP H01170385A
Authority
JP
Japan
Prior art keywords
servo motor
circuit
rotations
control signal
brush
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
Application number
JP62326876A
Other languages
Japanese (ja)
Inventor
Tadashi Tamai
玉井 忠司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shibaura Mechatronics Corp
Original Assignee
Shibaura Engineering Works Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shibaura Engineering Works Co Ltd filed Critical Shibaura Engineering Works Co Ltd
Priority to JP62326876A priority Critical patent/JPH01170385A/en
Publication of JPH01170385A publication Critical patent/JPH01170385A/en
Pending legal-status Critical Current

Links

Abstract

PURPOSE:To prevent a trouble from occurring due to the wear of a brush by counting detected number of rotations and displaying its life. CONSTITUTION:The output of a number-of-rotations detector 1 for detecting the number of rotations of a DC servo motor is counted by a counter 2. When the counter 2 counts the signals of a predetermined quantity, a signal is fed from a control signal generator 3 to a display circuit 4. The circuit 4 to which the signal is input operates an alarm unit 5. Thus, the wear of the brush can be accurately detected.

Description

【発明の詳細な説明】 「産業上の利用分野」 本発明は、回転数を検出して制御されるDCサーボモー
タの寿命を表示することに関する。
DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to indicating the life of a DC servo motor controlled by detecting its rotational speed.

「従来の技術」 DCサーボモータは、ブラシを用いると次第にブラシが
摩耗してついには、寿命に達し、動作できなくなるもの
である。
"Prior Art" When a DC servo motor uses brushes, the brushes gradually wear out and eventually reach the end of their lifespan and become inoperable.

このような寿命を知らずに運転されると突然動作が停止
するため外に大きな障害を発生することがある。
If the device is operated without knowing its lifespan, it may suddenly stop working and cause a major problem outside.

このため、従来は、ブラシが型粍するまでの一定期間毎
にブラシを交換することを義務付けていたものである。
For this reason, conventionally, it has been mandatory to replace the brush at regular intervals until the brush loses its shape.

「発明が解決しようとする問題点」 しかしながら、一定期間毎にブラシを交換することは、
管理が容易ではなく、また、DCサーボモータの運転が
連続している場合はともかく、−般的には、ブラシの摩
耗と無関係に交換されることになるため、不経済であっ
た。
``Problems to be solved by the invention'' However, replacing brushes at regular intervals is
Management is not easy, and even if the DC servo motor is in continuous operation, the brushes are generally replaced regardless of wear, which is uneconomical.

また、ブラシの摩耗が考えられる最も短い時間で交換し
なければならないため、より不経済であった。
In addition, since the brush must be replaced in the shortest possible time when it wears out, it is more uneconomical.

「問題点を解決するための手段」 本発明は、検出された回転数を計数し、一定量計数され
た際に制御信号を形成し、この制御信号で寿命を表示す
ることによって問題点を解決している。
"Means for solving the problem" The present invention solves the problem by counting the detected number of rotations, forming a control signal when a certain amount is counted, and displaying the life using this control signal. are doing.

「作用」 回転数が計数されるため、この計数が一定量になったと
きを寿命とすれば、回転数に比例するブラシの摩耗を寿
命で正確に交換することができる。
"Operation" Since the number of rotations is counted, if the life is defined as the time when this count reaches a certain amount, the wear of the brush, which is proportional to the number of rotations, can be accurately replaced within the life.

「実施例」 本発明を図面に示されな一実施例に基づいて説明すると
、図は、本発明の一実施例によるDCサーボモータの構
成を示す図である。
Embodiment The present invention will be described based on an embodiment not shown in the drawings. The figure is a diagram showing the configuration of a DC servo motor according to an embodiment of the present invention.

図において、DCサーボモータは、回転数を検出する回
転数検出回路1が備えられており、この回転数検出回路
1の出力がメモリー回路及び比較回路で構成される計数
回路2に接続されており、計数回路2の出力が制御信号
発生口F!113に接続されている。
In the figure, the DC servo motor is equipped with a rotation speed detection circuit 1 that detects the rotation speed, and the output of this rotation speed detection circuit 1 is connected to a counting circuit 2 consisting of a memory circuit and a comparison circuit. , the output of the counting circuit 2 is the control signal generation port F! 113.

そして制御信号発生回路3は、表示回路4に接続されて
おり、表示回路4には、警報器5が接続されている。
The control signal generation circuit 3 is connected to a display circuit 4, and an alarm 5 is connected to the display circuit 4.

このような構成において、DCサーボモータは、運転さ
れ回転することによってブラシが摩耗することになるが
、回転数が回転数検出回路1によって検出され、計数回
路2によって計数される。
In such a configuration, the brushes of the DC servo motor will wear out as it is operated and rotated, but the number of rotations is detected by the number of rotations detection circuit 1 and counted by the counting circuit 2.

そして、計数回路2に一定量の信号が計数されると、そ
の出力が制御信号発生口I?33に入力され、制御信号
発生回路3から表示回路4に信号が送られる。
Then, when a certain amount of signals are counted in the counting circuit 2, the output is the control signal generation port I? 33, and the signal is sent from the control signal generation circuit 3 to the display circuit 4.

信号が入力された表示回路4には、警報器5が接続され
ており、警報を発することになる。
An alarm device 5 is connected to the display circuit 4 into which the signal is input, and will issue an alarm.

このよう警報器5の警報は、計数回路2に一定量の信号
が計数された場合に発せられるものであり、この一定量
の信号をブラシの摩耗する程度の回転数に等しく設定す
ることによってブラシの摩耗の時期に警報器5から警報
を発生させることができる。
The alarm of the alarm device 5 is emitted when a certain amount of signals are counted in the counting circuit 2, and by setting this certain amount of signals equal to the rotation speed at which the brushes are worn out, An alarm can be generated from the alarm device 5 at the time of wear.

警報器5は、音響的に警報を発するものの外、DCサー
ボモータの運転を停止する回路で構成することも可能で
ある。
The alarm device 5 may be configured with a circuit that not only issues an acoustic alarm but also stops the operation of a DC servo motor.

「発明の効果」 本発明によれば、正確に回転数によってブラシ寿命の時
期を計数することができ、警報を発してその処置を促す
ことができるものであり、効率の良い、またブラシ摩耗
によるトラブルの発生を防止することができるDCサー
ボモータを得ることができ、その効果はロボットを構成
する場合などにおいて極めて大きいものである。
``Effects of the Invention'' According to the present invention, it is possible to accurately count the end of the brush life based on the number of rotations, and to issue an alarm to prompt the user to take action. It is possible to obtain a DC servo motor that can prevent the occurrence of troubles, and the effect is extremely large when constructing a robot.

【図面の簡単な説明】[Brief explanation of the drawing]

図は、本発明の一実施例によるDCサーボモータの構成
を示す図である。 1・・・回転数検出回路、 2・・・計数回路、 3・
・・制御信号発生回路、 4・・・表示回路、 5・・
・警報器。
The figure is a diagram showing the configuration of a DC servo motor according to an embodiment of the present invention. 1... Rotation speed detection circuit, 2... Counting circuit, 3.
...Control signal generation circuit, 4...Display circuit, 5...
・Alarm device.

Claims (1)

【特許請求の範囲】[Claims] 回転数を検出して制御されるDCサーボモータにおいて
、検出された回転数を計数し、一定量計数された際に制
御信号を形成し、この制御信号で寿命を表示することを
特徴とするDCサーボモータ。
A DC servo motor controlled by detecting the number of revolutions, which counts the number of revolutions detected, forms a control signal when a certain amount is counted, and displays the lifespan using this control signal. Servomotor.
JP62326876A 1987-12-25 1987-12-25 Dc servo motor Pending JPH01170385A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62326876A JPH01170385A (en) 1987-12-25 1987-12-25 Dc servo motor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62326876A JPH01170385A (en) 1987-12-25 1987-12-25 Dc servo motor

Publications (1)

Publication Number Publication Date
JPH01170385A true JPH01170385A (en) 1989-07-05

Family

ID=18192722

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62326876A Pending JPH01170385A (en) 1987-12-25 1987-12-25 Dc servo motor

Country Status (1)

Country Link
JP (1) JPH01170385A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000024760A (en) * 1998-10-01 2000-05-06 윤종용 Apparatus for checking step motor

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62159204A (en) * 1986-01-07 1987-07-15 Mitsubishi Electric Corp Numerical controller

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62159204A (en) * 1986-01-07 1987-07-15 Mitsubishi Electric Corp Numerical controller

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20000024760A (en) * 1998-10-01 2000-05-06 윤종용 Apparatus for checking step motor

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