JPH04129980A - Device for preventing sheave racing of elevator - Google Patents

Device for preventing sheave racing of elevator

Info

Publication number
JPH04129980A
JPH04129980A JP24748090A JP24748090A JPH04129980A JP H04129980 A JPH04129980 A JP H04129980A JP 24748090 A JP24748090 A JP 24748090A JP 24748090 A JP24748090 A JP 24748090A JP H04129980 A JPH04129980 A JP H04129980A
Authority
JP
Japan
Prior art keywords
sheave
elevator
timer
racing
circuit
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
JP24748090A
Other languages
Japanese (ja)
Inventor
Kazuhiko Kawauchi
川内 和彦
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP24748090A priority Critical patent/JPH04129980A/en
Publication of JPH04129980A publication Critical patent/JPH04129980A/en
Pending legal-status Critical Current

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  • Indicating And Signalling Devices For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

PURPOSE:To prevent abnormal wearing, before it occurs, in a sheave and a rope due to sheave racing by detecting operation command information of an elevator and a moving condition thereof to indirectly detect the racing of the sheave. CONSTITUTION:When an operation command is generated in a condition that a riding cage or a balance weight is fixed to hesitate made impossible to move by any trouble, a position detector 4 and a driving shield plate 5 are continued to hold a crossing condition, so that a timer T1 counts a time limit by a circuit of P-10a-30a-T1-N. When the time reaches the preset time limit, an output contact T1a of the timer is turned on to turn on a sheave racing detecting relay coil 50 by a circuit of P-T1a-50-N, and self-holding is performed by a circuit of P-50a-50-N. Further, by turning on the sheave racing detecting relay 50, a break contact 50b of the relay 50 is opened, and an elevator is stopped by turning off an operation relay coil 10.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、エレベータ制御装置に係り、特に、ロープ起
動方式のエレベータに好適な制御装置に関する。
DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an elevator control device, and particularly to a control device suitable for a rope-starting type elevator.

〔従来の技術〕[Conventional technology]

乗かと又はつり合いおもりが何らかのトラブルにより、
固渋し動けない状態で運転指令が発せし続けられると、
巻」1機の駆動シーブとロープの間で異常摩擦を生じ、
それが異常摩耗に発展し、最悪の場合にはロープの切断
に至る危険がある。
Due to some trouble with the rider or counterweight,
If driving commands continue to be issued while the driver remains stubborn and unable to move,
Abnormal friction occurred between the drive sheave and the rope of one machine,
This can lead to abnormal wear, and in the worst case, there is a danger that the rope will break.

これに対し、従来の防止装置は、実開昭5917986
5号公報のように、ロープと起動シーブのスリップを検
出するために駆動シーブとそらせシーブとの間に、回転
速度の差を検出する装置を取付けたが、構造が複雑で、
簡単に取付けられる装置ではなかった。
On the other hand, the conventional prevention device is
As in Publication No. 5, a device for detecting the difference in rotational speed was installed between the driving sheave and the deflecting sheave in order to detect slippage between the rope and the starting sheave, but the structure was complicated;
It was not an easy device to install.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上記従来技術は、構造が複雑のため簡単に取付けること
ができず、特に、すでに稼動中のエレベータに付加する
点については考慮されておらず、安価で短工完で対応で
きない問題があった。
The above-mentioned conventional technology has a complicated structure and cannot be easily installed.In particular, it does not take into consideration the fact that it can be added to an elevator that is already in operation, and there is a problem that it cannot be solved at low cost and in a short period of time.

〔課題を解決するための手段〕[Means to solve the problem]

上記目的を達成するために、本発明はローブのスリップ
を、直接、検出するのでなく、エレベータの運転指令情
報とエレベータの移動状態を検出することにより、間接
的にシーブの空転を検出するようにした。
To achieve the above object, the present invention does not directly detect lobe slip, but indirectly detects sheave slip by detecting elevator operation command information and elevator movement status. did.

〔作用〕[Effect]

かご上に取付けられた位置検出器が各階に取付けられた
位置検出用じゃへい板を交叉すると、この位置検出器の
出力信号はオンし、交叉しない位置ではオフする。この
信号検出器の出力信号のオン状態の位置でエレベータに
運転指令が発せられるとカウントを開始するタイマとそ
の出力信号のオフ状態の位置でエレベータに運転指令が
発せられるとカラン1へを開始するタイマ二個を設け、
それぞれのタイマの設定時限は一階床運転時限に余裕時
限を加算した時限にセットする。
When the position detector mounted on the car intersects the position detection baffle plate installed on each floor, the output signal of this position detector turns on, and turns off at the position where it does not intersect. When the operation command is issued to the elevator at the position where the output signal of this signal detector is in the ON state, a timer starts counting, and when the operation command is issued to the elevator at the position where the output signal is in the OFF state, the timer starts counting. Set up two timers,
The set time limit of each timer is set to the first floor operation time limit plus the margin time limit.

エレベータが正常運転時には、位置検出器の出力信号は
各階床を通過する毎にオン、オフをくすかえすため、タ
イマは二ヶ共設定時限をカウントアツプする前にリセッ
トされるため、タイマの出力信号は出力されない。トラ
ブルによりエレベータに運転指令が発し続けられている
のに動かないと、二ヶのタイマの一ヶが時限をカウント
シ、所定時限以上になるとエレベータを停止させ、駆動
シーブとロープ間の異常摩耗の防止を図るものである。
When the elevator is operating normally, the output signal of the position detector alternates between on and off every time it passes each floor, so the timer is reset before both of the two timers count up, so the timer output signal is not output. If the elevator does not move even though operation commands are continuously issued due to a problem, one of the two timers will count down the time limit, and when the predetermined time limit is exceeded, the elevator will stop, preventing abnormal wear between the drive sheave and the rope. The aim is to

〔実施例〕〔Example〕

以下、本発明を図に示した実施例を用いて詳細に説明す
る。第1図は本発明の一実施例を示す。
Hereinafter, the present invention will be explained in detail using embodiments shown in the drawings. FIG. 1 shows an embodiment of the invention.

41aは上昇運転指令用リレー(図示省略)のメイク接
点、4.2 aは下降運転指令用リレー(図示省略)の
メイク接点、50bはシーブ空転検出用リレーのブレー
ク接点、10は運転用リレーコイル、10aはそのメイ
ク接点、30aおよび30bは位置検出器の出力信号の
メイク接点およびブレーク接点、T1は各階の位置検出
器の出力信号がオンの位置で動作するタイマ、]゛2は
各階の位置検出器の出力信号がオフの位置で動作するタ
イマ、TeaおよびT 2 aはそれぞれのタイマが時
限カウント時メイクする接点、5oはシーブ空転検出用
リレーコイル、50aはそのメイク接点で、これらが操
作電源P、Nに図のように接続されている。
41a is the make contact of the relay for ascending operation command (not shown), 4.2a is the make contact of the relay for descending operation command (not shown), 50b is the break contact of the sheave slip detection relay, and 10 is the operation relay coil. , 10a is its make contact, 30a and 30b are make and break contacts for the output signal of the position detector, T1 is a timer that operates at the position where the output signal of the position detector of each floor is on, ] 2 is the position of each floor The timer operates when the output signal of the detector is in the OFF position.Tea and T2a are the contacts that are made when each timer counts the time limit, 5o is the relay coil for sheave slip detection, and 50a is the make contact, and these are the contacts that are operated. It is connected to power supplies P and N as shown in the figure.

第2図は各階の位置検出器を備えたエレベータの概略図
である。1はレール、2は乗りかご、3は乗場、4は位
置検出器、5は位置検出器を駆動させるじゃへい板であ
る。
FIG. 2 is a schematic diagram of an elevator equipped with position detectors for each floor. 1 is a rail, 2 is a car, 3 is a landing, 4 is a position detector, and 5 is a baffle plate that drives the position detector.

次に動作について説明する。今、エレベータの乗りかご
が乗場のレベルに停止中に運転指令が発生した状態につ
いて説明する。かご上に取付けられた位置検出器4と塔
内に取付けられた駆動用じゃへい板5の位置関係は、第
2図に示すように、位置検出器4と駆動用じゃへい板5
は交叉しており、その出力信号であるメイク接点30a
はクローズし、ブレーク接点30 bはオープンの状態
となっている。
Next, the operation will be explained. Now, a description will be given of a state in which an operation command is issued while the elevator car is stopped at the landing level. The positional relationship between the position detector 4 installed on the car and the driving baffle plate 5 installed in the tower is as shown in FIG.
are crossed, and the output signal is the make contact 30a.
is closed, and the break contact 30b is in an open state.

上昇運転指令が発せられると」1昇運転指令用リレー接
点41aがオンし、P −41a −50blo−Nの
回路により、運転用リレーコイル10がオンする。運転
用リレー10のオンにより、そのメイク接点10aがオ
ンし、P−10a −30aT1−Nの回路によりタイ
マT1が時限とカウントし始める。エレベータは正常に
運転されると、乗りかと2は乗場3から離れ、位置検出
器4と駆動用じゃへい板5は交叉状態から解かれるため
、位置検出器4の出力信号であるめイク接点30aはオ
ープンとなりタイマT1は電源から切放され、カウント
した時限はリセットされる。一方、位置検出器4の出力
信号であるブレーク接点30bはクローズすることによ
り、P−10a−30bT2  N2の回路にタイマT
2が時限をカウントし始める。エレベータが正常に運転
し次階の駆動用じゃへい板と位置検出器4が交叉すると
、再び、その出力信号であるブレーク接点30bはオー
プンし、タイマT2は電源より切放され、カウントした
時限はリセットされる。を同時に、もう一方のタイマT
1はP−10a−30a−TI Nの回路により、時限
を再度カウントし始める。このように運転指令が与えら
れ、エレベータが目的階に到着するまでにタイマTxと
タイマT2は交叉に時限をカウントするが、双方のタイ
マの設定時限は一階床運転で最も長い運転時間より若干
大きい時限にセットされているため双方のタイマは共に
カウント完了とならず、そのタイマの出力信号1゛1a
 およびT 2 a  はオンしないため、シーブ空転
検出用リレーコイル50は動作しない。
When the ascending operation command is issued, the "1 ascending operation command relay contact 41a is turned on, and the operating relay coil 10 is turned on by the circuit P-41a-50blo-N. When the operation relay 10 is turned on, its make contact 10a is turned on, and the timer T1 starts counting the time limit by the circuit P-10a-30aT1-N. When the elevator is operated normally, the seats 2 move away from the hall 3, and the position detector 4 and drive baffle plate 5 are released from the crossed state. is opened, timer T1 is disconnected from the power supply, and the counted time period is reset. On the other hand, by closing the break contact 30b, which is the output signal of the position detector 4, a timer T is applied to the P-10a-30bT2 N2 circuit.
2 starts counting the time limit. When the elevator operates normally and the drive baffle on the next floor intersects with the position detector 4, the break contact 30b, which is the output signal, opens again, the timer T2 is disconnected from the power supply, and the counted time is will be reset. At the same time, the other timer T
1 starts counting the time limit again by the P-10a-30a-TIN circuit. When the operation command is given in this way, timer Tx and timer T2 cross-count the time until the elevator reaches the destination floor, but the set time of both timers is slightly longer than the longest operation time for the first floor operation. Since both timers are set to a large time limit, both timers do not complete counting, and the output signal of that timer is 1゛1a.
Since T 2 a is not turned on, the sheave idle detection relay coil 50 does not operate.

今、仮に乗かご、又は、つり合いおもりが何らかのトラ
ブルにより、固渋し動けない状態で運転指令が発せられ
ると、位置検出器4と駆動用じゃへい板5は交叉状態を
保持し続けるため、Ploa−30a−T1−Hの回路
によりタイマT1が時限をカウントし、設定時限に達す
るとその出力接点Tia  がオンし、P −T t 
a  −5ONの回路により、シーブ空転検出用リレー
コイル50がオンし、P−50a−50−Nの回路によ
り自己保持する。シーブ空転検出用リレー50のオンに
より、そのブレーク接点50bはオープンとなり、運転
用リレーコイル10をオフさせエレベータを停止させる
Now, if a driving command is issued while the car or counterweight is stuck and cannot move due to some trouble, the position detector 4 and drive baffle plate 5 will continue to maintain the crossed state, so Ploa -30a-T1-H circuit causes timer T1 to count the time limit, and when the set time limit is reached, its output contact Tia is turned on and P -T t
The sheave slip detection relay coil 50 is turned on by the a-5ON circuit, and self-maintained by the P-50a-50-N circuit. When the sheave idling detection relay 50 is turned on, its break contact 50b is opened, turning off the driving relay coil 10 and stopping the elevator.

別の1−ラブルとして、運転中のエレベータが何らかの
トラブルにより、乗かと又はつり合いおもりが固渋し、
急停止しシーブが空転し続けた場合について述べる。位
置検出器4と駆動用じゃへい板5とは交叉しない位置に
停止した場合について説明すると、位置検出器の出力信
号であるメイク接点30aはオープンし、ブレーク接点
30bはクローズしている。また、運転指令は発し続け
られているため、運転用リレーコイル1oはオンし続け
、そのメイク接点]、 Oaもクローズしているから、
タイマTzはP−10a−301) −T2−Nの回路
により、時限をカウントし続け、設定された時限にカラ
ン1−完了すると、その出力信号T 2 a  がオン
し、P−T2a−50−N の回路により、シーブ空転
検出用リレーコイル50がオンし、そのブレーク接点5
0bがオープンすることにより運転用リレーコイルがオ
フし、エレベータのモータは電源から切放され(回路の
説明は省略)エレベータは停止する。
Another problem is when the elevator is in operation and due to some kind of trouble, the passengers or counterweights become stuck.
This section describes a case where the sheave suddenly stops and the sheave continues to idle. To explain the case where the position detector 4 and the drive baffle plate 5 stop at a position where they do not intersect, the make contact 30a, which is the output signal of the position detector, is open and the break contact 30b is closed. In addition, since the operation command continues to be issued, the operation relay coil 1o continues to be on, and its make contacts] and Oa are also closed.
The timer Tz continues to count the time limit by the P-10a-301)-T2-N circuit, and when the count is completed at the set time limit, the output signal T2a is turned on and the P-T2a-50- N circuit turns on the sheave slip detection relay coil 50, and its break contact 5
When 0b is opened, the operating relay coil is turned off, the elevator motor is disconnected from the power supply (description of the circuit is omitted), and the elevator stops.

このように位置検出器4と駆動用じゃへい板5と交叉し
ているゾーンと交叉しないゾーンのいずれでも、タイマ
を動作させ、シーブ空転による異常を防ぐことができる
In this manner, the timer can be operated in both the zone where the position detector 4 and the drive baffle plate 5 intersect and the zone where they do not intersect, thereby preventing abnormalities due to sheave slippage.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、シーブ空転によるシーブおよびロープ
の異常摩耗を事前に防ぐことができるので、安全性が向
」ニする。
According to the present invention, it is possible to prevent abnormal wear of the sheave and rope due to sheave idling, thereby improving safety.

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

第1図は本発明の一実施例の回路図である。第2図は各
階の位置検出装置を備えたエレベータの説明図である。 \ ′、 、−!、j7 X”5ン 第 図 第 図
FIG. 1 is a circuit diagram of an embodiment of the present invention. FIG. 2 is an explanatory diagram of an elevator equipped with a position detection device for each floor. \ ′、 、−! ,j7

Claims (1)

【特許請求の範囲】 1、ロープの一端に乗かごを、他端につり合いおもりを
それぞれ吊持し、巻上機の駆動シーブにより運転される
巻上式エレベータにおいて、各階の位置を検出する位置
検出器と、前記位置検出器の動作範囲に乗かごがあると
きに、動作するタイマと、前記位置検出器の動作範囲外
に乗かごがあるときに動作するタイマとを備え、それぞ
れの前記タイマが起動指令によりカウントを開始し、設
定時限を経過した場合、前記エレベータを停止する手段
を設けたことを特徴とするエレベータのシーブ空転防止
装置。 2、請求項1において、前記タイマの設定時限は一階床
運転時間で最も長い運転時間も若干の余裕時間を加算し
た時限とするエレベータのシーブ空転防止装置。
[Claims] 1. A position for detecting the position of each floor in a hoisting elevator that suspends a car from one end of a rope and a counterweight from the other end and is operated by a drive sheave of a hoisting machine. a timer that operates when the car is within the operating range of the position detector; and a timer that operates when the car is outside the operating range of the position detector; 1. A sheave slip prevention device for an elevator, comprising means for starting a count in response to a start command and stopping the elevator when a set time period has elapsed. 2. An elevator sheave slip prevention device according to claim 1, wherein the time limit set by the timer is a time limit obtained by adding some margin time to the longest operating time of the first floor.
JP24748090A 1990-09-19 1990-09-19 Device for preventing sheave racing of elevator Pending JPH04129980A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP24748090A JPH04129980A (en) 1990-09-19 1990-09-19 Device for preventing sheave racing of elevator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP24748090A JPH04129980A (en) 1990-09-19 1990-09-19 Device for preventing sheave racing of elevator

Publications (1)

Publication Number Publication Date
JPH04129980A true JPH04129980A (en) 1992-04-30

Family

ID=17164088

Family Applications (1)

Application Number Title Priority Date Filing Date
JP24748090A Pending JPH04129980A (en) 1990-09-19 1990-09-19 Device for preventing sheave racing of elevator

Country Status (1)

Country Link
JP (1) JPH04129980A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008511041A (en) * 2004-08-23 2008-04-10 アドバンス ディスプレイ テクノロジーズ,インコーポレイティド LED mesh display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008511041A (en) * 2004-08-23 2008-04-10 アドバンス ディスプレイ テクノロジーズ,インコーポレイティド LED mesh display device

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