WO2002046082A1 - Elevator main rope elongation sensor - Google Patents

Elevator main rope elongation sensor Download PDF

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Publication number
WO2002046082A1
WO2002046082A1 PCT/JP2000/008673 JP0008673W WO0246082A1 WO 2002046082 A1 WO2002046082 A1 WO 2002046082A1 JP 0008673 W JP0008673 W JP 0008673W WO 0246082 A1 WO0246082 A1 WO 0246082A1
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WO
WIPO (PCT)
Prior art keywords
main rope
detecting device
elongation
main
electric resistance
Prior art date
Application number
PCT/JP2000/008673
Other languages
French (fr)
Japanese (ja)
Inventor
Hiroyuki Takagi
Original Assignee
Mitsubishi Denki Kabushiki Kaisha
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 Mitsubishi Denki Kabushiki Kaisha filed Critical Mitsubishi Denki Kabushiki Kaisha
Priority to PCT/JP2000/008673 priority Critical patent/WO2002046082A1/en
Priority to JP2002547827A priority patent/JPWO2002046082A1/en
Priority to EP00979984A priority patent/EP1357073A4/en
Priority to CNB008187940A priority patent/CN1243658C/en
Publication of WO2002046082A1 publication Critical patent/WO2002046082A1/en

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Classifications

    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B1/00—Constructional features of ropes or cables
    • D07B1/14—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable
    • D07B1/145—Ropes or cables with incorporated auxiliary elements, e.g. for marking, extending throughout the length of the rope or cable comprising elements for indicating or detecting the rope or cable status
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/0006—Monitoring devices or performance analysers
    • B66B5/0037—Performance analysers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2301/00—Controls
    • D07B2301/25—System input signals, e.g. set points
    • D07B2301/259—Strain or elongation
    • D—TEXTILES; PAPER
    • D07—ROPES; CABLES OTHER THAN ELECTRIC
    • D07B—ROPES OR CABLES IN GENERAL
    • D07B2301/00—Controls
    • D07B2301/55—Sensors
    • D07B2301/5531—Sensors using electric means or elements
    • D07B2301/554—Sensors using electric means or elements for measuring variable resistance

Definitions

  • the present invention relates to a main rope elongation detection device provided at an elepetator in which a car is suspended in a hoistway by a main rope made of a synthetic fiber rope, and detects main rope elongation.
  • a car and a counterweight are suspended in a hoistway by a main rope.
  • a car buffer and a counterweight buffer are installed at the bottom of the hoistway.
  • the distance between the counterweight and the counterweight buffer when the car stops on the top floor is always maintained at the specified value.
  • the spacing between the counterweight and the counterweight buffer is reduced due to the aging of the main rope.
  • the amount of elongation of the main rope is about twice that of a steel rope.
  • the distance between the counterweight and the counterweight buffer is measured during periodic inspections for such main rope elongation. At this time, one maintenance person is operating the elevator and another maintenance person is entering the hoistway bit and measuring. Therefore,
  • Japanese Patent Application Laid-Open No. 6-56372 discloses a method in which measurement is performed by one maintenance person. However, with this method, the maintenance staff had to move the car to the top floor and then move to the pit to check the measurement results, which required a lot of work and reduced work efficiency. Disclosure of the invention
  • the present invention has been made to solve the above-mentioned problems, and has been made in consideration of the above circumstances.
  • An object is to obtain a cable elongation detecting device.
  • the main rope elongation detecting device is an elevator in which a car is suspended in a hoistway by a main rope made of a synthetic fiber rope having a synthetic fiber strand and a conductive filament. It is provided to detect the elongation of the main rope, and to determine whether the measured value of the electric resistance measuring device for measuring the electric resistance value of the conductive filament is within a predetermined normal range. And a warning means for issuing a warning when the measured value is determined to be abnormal by the determination means.
  • FIG. 1 is a block diagram showing a main rope elongation detection device for an elevator according to Embodiment 1 of the present invention.
  • FIG. 2 is a configuration diagram showing a main part of a main rope elongation detection device for an elevator according to a second embodiment of the present invention.
  • FIG. 3 is a configuration diagram showing a main part of a main rope elongation detection device at night in accordance with Embodiment 3 of the present invention.
  • FIG. 4 is a configuration diagram showing a main part of a main rope elongation detecting device for an electric elevator in accordance with a fourth embodiment of the present invention.
  • FIG. 5 is a block diagram showing a main rope elongation detecting device for an elevator according to a fifth embodiment of the present invention.
  • FIG. 1 is a configuration diagram showing a main rope elongation detection device for an elevator according to Embodiment 1 of the present invention.
  • a car 1 and a counterweight 2 are suspended in a hoistway by a main rope 3 made of synthetic fiber rope.
  • the main rope 3 includes a plurality of synthetic fiber strands and a plurality of force-bonding filaments as conductive filaments embedded in at least some of the strands of the synthetic fiber strands over the entire length thereof. Has lament.
  • An intermediate portion of the main rope 3 is wound around a drive sheave 5 of a drive device 4 arranged above the hoistway.
  • the car 1 and the counterweight 2 are raised and lowered by the driving force of the driving device 4.
  • a pair of car suspension wheels 6 around which the main rope 3 is wound are provided at the lower part of the car 1.
  • a counterweight suspension wheel 7 around which the main rope 3 is wound is provided at the lower part of the car 1.
  • Both ends of the main rope 3 are connected at the top of the hoistway, respectively, to ties 8,9.
  • the control panel 10 for controlling the operation of the elevator is provided with an electric resistance measuring device 11 for measuring the electric resistance value of the power filament incorporated in the main cable 3.
  • the electric resistance measuring devices 11 are connected to both ends of the filament.
  • the control panel 10 has a judging means 12 for judging whether the measured value by the electric resistance measuring device 11 is within a predetermined normal range, and a judging means 12 for judging that the measured value is abnormal.
  • an alarm means 13 for issuing an alarm when the alarm is issued.
  • the main rope elongation detecting device according to the first embodiment includes an electric resistance measuring device 11, a judging unit 12, and a warning unit 13.
  • the electric resistance value of the power filament of the main rope 3 is measured by the electric resistance measuring device 11 when necessary.
  • the carbon filaments are arranged along the entire length of the main rope 3, and when the main rope 3 temporarily elongates, they are elongated in the same manner as the main rope 3. That is, when the main rope 3 is elongated, the entire length of the carbon filament is elongated, the cross-sectional area is reduced, and the electric resistance value is increased.
  • the value measured by the electric resistance measuring device 11 is monitored by the judging means 12 to judge whether there is any abnormality. If the measured value exceeds the preset normal range, an abnormality detection signal is sent to the alarm means 13 and an alarm is issued by the alarm means 13. Necessary measures such as adjusting the run-by and replacing the main rope 3 are performed by the maintenance personnel who have been alerted.
  • FIG. 2 is a configuration diagram showing a main part of a main rope elongation detection device for an elevator in accordance with a second embodiment of the present invention.
  • a main rope 3 made of a synthetic fiber rope is composed of a plurality of synthetic fiber strands 31 made of, for example, aramide resin, and at least a part of the strands of the synthetic fiber strands 31 and extending over the entire length thereof.
  • the electric resistance measuring device 11 having a plurality of carbon filaments 32 as conductive filaments embedded therein is connected to only one end of the main cable 3.
  • two synthetic fiber strands 31 are bundled together by end connectors 33.
  • the end filaments 33 are used to electrically connect the filaments 32 electrically in series in pairs.
  • the electric resistance measuring device 11 is provided with a plurality of sets of a power supply 35 for applying a voltage to the carbon filament 32 via a resistor 34, a low-pass filter 36 and an A / D converter 37.
  • Other configurations are the same as those of the first embodiment.
  • the electric resistance measuring device 11 is provided at one end of the main rope 3. Only to be connected, wiring is easy. For this reason, for example, in a one-by-one elevating elevator, the electric resistance measuring device 11 may be connected only to the car side end or the counterweight side end of the main rope 3. Can be simplified. Embodiment 3.
  • FIG. 3 is a configuration diagram showing a main part of a main rope elongation detection device for an elevator according to a third embodiment of the present invention.
  • 1 electrically total c force one carbon filaments 3 2 connected in series all forces one carbon filaments 3 2 included in the main rope 3 is a plurality of end connector 3 3 of the present is The even number (six in the figure) is provided, and the electric resistance measuring device 11 is connected to only one end of the main cable 3.
  • Other configurations are the same as those of the first embodiment.
  • the electric resistance measuring device 11 need only be connected to one end of the main rope 3, and wiring is easy. For this reason, for example, 1: 1 roving In the elevator, the electric resistance measuring device 11 may be connected only to the car-side end or the counterweight-side end of the main rope 3, so that the device configuration can be simplified. In addition, since all the carbon filaments 32 of one main rope 3 are electrically connected in series, it is not necessary to measure the electric resistance value of each of the carbon filaments 3 2. The configuration of the measuring device 11 can be simplified. Embodiment 4.
  • the power filaments 32 in one main cable 3 are electrically connected in series.However, for example, as shown in FIG. 4, a plurality of main cables 3 are used. However, the force filaments 32 may be electrically connected in series over the plurality of main ropes 3, and the configuration of the electric resistance measuring device 11 can be further simplified.
  • Embodiment 5
  • FIG. 5 is a block diagram showing a main rope elongation detection device for an elevator according to a fifth embodiment of the present invention.
  • signals from an electric resistance measuring device 11, a temperature detecting device 21 and a humidity detecting device 22 are inputted to a CPU 14 of a judging means 12 via input circuits 15 and 16. .
  • the temperature detecting device 21 detects the temperature in the hoistway and outputs the information to the judging means 12.
  • the humidity detecting device 22 detects the humidity in the hoistway and outputs the information to the determining means 12.
  • the determination means 12 is provided with a memory 17 which stores data such as set values to be compared with measured values and correction coefficients for temperature and humidity. If the measured value is determined to be abnormal by the CPU 14, an abnormality detection signal is output to the alarm means 13 via the output circuit 18.
  • the initial electric resistance value may be stored in the memory 17 and the abnormality of the elongation amount may be determined by comparing the initial electric resistance value with the measured value. Eliminate the effect of the initial variation of the Bon Filament 3 2 to increase the detection accuracy Can be improved.
  • the measured value of the electric resistance value may be stored in the memory 17 and the abnormality of the elongation amount may be determined from the average value of the measured values of a plurality of times. Can be improved.
  • the electric resistance of a plurality of carbon filaments 32 was measured for one main rope 3, but by measuring the electric resistance of at least one or more carbon filaments 32, The extension of the main rope 3 can be detected.
  • the reliability can be improved by measuring the electric resistance value of the plurality of carbon filaments 32.
  • the carbon filament 32 is shown as the conductive filament, but a filament made of another conductive material may be used.
  • the main rope elongation detection device is provided in the control panel 10.
  • the main rope elongation detection device is disposed on the car 1 and the counterweight 2, and transmits an abnormality detection signal to the control panel 10. It may be sent to.
  • the electrical resistance measuring device and the determination means may determine the electrical resistance value as a numerical value and directly determine the electrical resistance value, but measure the voltage when a predetermined current is applied, and determine that the voltage value is within the normal range. By judging whether or not there is, the electric resistance value may be indirectly determined.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

An elevator main rope elongation sensor for sensing the elongation of a main rope (3) of an elevator sensing an electric resistance measuring instrument (11) which measures the electric resistance of a conductive filament (32) contained in the main rope (3), a judging means (12) which judges whether or not the resistance value measured by the electric resistance measuring instrument (11) is within a predetermined normal range, and an alarm means (13) which raises an alarm when the judging means (12) judges the measured value to be abnormal. The judgment is made by taking the elomgation /contraction of the main rop (3) which is caused by the temperature and hunidity in the hoistway into consideration to improve the precision of measurement of the elongation of the main rope (3).

Description

明 細 書 エレべ一夕の主索伸び検出装置  Description Elevator main rope elongation detector
技術分野 Technical field
この発明は、 合成繊維ロープ製の主索により昇降路内にかごが吊り下げられて いるエレペータに設けられ、 主索の伸びを検出するェレベ一夕の主索伸び検出装 置に関するものである。 背景技術  The present invention relates to a main rope elongation detection device provided at an elepetator in which a car is suspended in a hoistway by a main rope made of a synthetic fiber rope, and detects main rope elongation. Background art
一般に、 トラクシヨン方式のエレべ一夕においては、 かごと釣合重りとが主索 により昇降路内に吊り下げられている。 昇降路の底部には、 かご用バッファ及び 釣合重り用バッファが設置されている。 また、 かごが最上階に停止したときの釣 合重りと釣合重り用バッファとの間の間隔寸法は常に規定値に維持されることが 要求されている。 し力 し、 主索の経年的な伸びにより、 釣合重りと釣合重り用バ ッファとの間の間隔寸法は縮小される。 特に、 合成繊維ロープ製の主索を用いた 場合、 主索の伸び量は、 鋼製ロープに比べて 2倍程度にもなつてしまう。  Generally, in a traction system elevator, a car and a counterweight are suspended in a hoistway by a main rope. A car buffer and a counterweight buffer are installed at the bottom of the hoistway. Also, it is required that the distance between the counterweight and the counterweight buffer when the car stops on the top floor is always maintained at the specified value. However, the spacing between the counterweight and the counterweight buffer is reduced due to the aging of the main rope. In particular, when a main rope made of synthetic fiber rope is used, the amount of elongation of the main rope is about twice that of a steel rope.
このような主索の伸びに対し、 従来は、 定期点検時に釣合重りと釣合重り用バ ッファとの間の間隔寸法を測定している。 このとき、 1人の保守員がエレべ一夕 を運転し、 もう 1人の保守員が昇降路のビットに入り測定を行っている。 従って、 Conventionally, the distance between the counterweight and the counterweight buffer is measured during periodic inspections for such main rope elongation. At this time, one maintenance person is operating the elevator and another maintenance person is entering the hoistway bit and measuring. Therefore,
2人の保守員が必要となり、 作業効率が低かった。 Two maintenance personnel were required, and work efficiency was low.
これに対し、 例えば特開平 6— 5 6 3 7 2号公報には、 1人の保守員により測 定を行う方法が示されている。 しかし、 この方法では、 保守員がかごを最上階に 移動させた後、 ピットに移動して測定の結果を確認する必要があるため、 作業に 手間がかかり、 作業効率は低かった。 発明の開示  On the other hand, for example, Japanese Patent Application Laid-Open No. 6-56372 discloses a method in which measurement is performed by one maintenance person. However, with this method, the maintenance staff had to move the car to the top floor and then move to the pit to check the measurement results, which required a lot of work and reduced work efficiency. Disclosure of the invention
この発明は、 上記のような課題を解泱するためになされたものであり、 合成繊 維ロープ製の主索の伸びを効率良く簡単に検出することができるエレべ一夕の主 索伸び検出装置を得ることを目的とする。 SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has been made in consideration of the above circumstances. An object is to obtain a cable elongation detecting device.
この発明によるエレべ一夕の主索伸び検出装置は、 合成繊維ストランドと導電 性フイラメン卜とを有する合成繊維ロープ製の主索により昇降路内にかごが吊り 下げられているエレべ一夕に設けられ、 主索の伸びを検出するものであって、 導 電性フイラメン卜の電気抵抗値を測定する電気抵抗測定装置、 電気抵抗測定装置 による測定値が予め設定された正常範囲内であるかどうかを判定する判定手段、 及び測定値が判定手段で異常と判定されたときに警報を発する警報手段を備えた ものである。 図面の簡単な説明  The main rope elongation detecting device according to the present invention is an elevator in which a car is suspended in a hoistway by a main rope made of a synthetic fiber rope having a synthetic fiber strand and a conductive filament. It is provided to detect the elongation of the main rope, and to determine whether the measured value of the electric resistance measuring device for measuring the electric resistance value of the conductive filament is within a predetermined normal range. And a warning means for issuing a warning when the measured value is determined to be abnormal by the determination means. BRIEF DESCRIPTION OF THE FIGURES
図 1はこの発明の実施の形態 1によるエレべ一夕の主索伸び検出装置を示す構 成図、  FIG. 1 is a block diagram showing a main rope elongation detection device for an elevator according to Embodiment 1 of the present invention.
図 2はこの発明の実施の形態 2によるエレべ一夕の主索伸び検出装置の要部を 示す構成図、  FIG. 2 is a configuration diagram showing a main part of a main rope elongation detection device for an elevator according to a second embodiment of the present invention.
図 3はこの発明の実施の形態 3によるェレべ一夕の主索伸び検出装置の要部を 示す構成図、  FIG. 3 is a configuration diagram showing a main part of a main rope elongation detection device at night in accordance with Embodiment 3 of the present invention.
図 4はこの発明の実施の形態 4によるエレベ一夕の主索伸び検出装置の要部を 示す構成図、  FIG. 4 is a configuration diagram showing a main part of a main rope elongation detecting device for an electric elevator in accordance with a fourth embodiment of the present invention.
図 5はこの発明の実施の形態 5によるエレべ一夕の主索伸び検出装置示すプロ ック図である。 発明を実施するための最良の形態  FIG. 5 is a block diagram showing a main rope elongation detecting device for an elevator according to a fifth embodiment of the present invention. BEST MODE FOR CARRYING OUT THE INVENTION
以下、 この発明の好適な実施の形態について図面を参照して説明する。  Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
実施の形態 1 . Embodiment 1
図 1はこの発明の実施の形態 1によるエレべ一夕の主索伸び検出装置を示す構 成図である。 図において、 かご 1及び釣合重り 2は、 合成繊維ロープ製の主索 3 により、 昇降路内に吊り下げられている。 主索 3は、 複数本の合成繊維ストラン ドと、 これらの合成繊維ストランドのうちの少なくとも一部のストランドにそれ それ全長に渡って内蔵された導電性フィラメントとしての複数本の力一ボンフィ ラメントを有している。 FIG. 1 is a configuration diagram showing a main rope elongation detection device for an elevator according to Embodiment 1 of the present invention. In the figure, a car 1 and a counterweight 2 are suspended in a hoistway by a main rope 3 made of synthetic fiber rope. The main rope 3 includes a plurality of synthetic fiber strands and a plurality of force-bonding filaments as conductive filaments embedded in at least some of the strands of the synthetic fiber strands over the entire length thereof. Has lament.
主索 3の中間部は、 昇降路上部に配置された駆動装置 4の駆動シ一ブ 5に巻き 掛けられている。 かご 1及び釣合重り 2は、 駆動装置 4の駆動力により昇降され る。 かご 1の下部には、 主索 3が卷き掛けられた一対のかご吊り車 6が設けられ ている。 釣合重り 2の上部には、 主索 3が卷き掛けられた釣合重り吊り車 7が設 けられている。 主索 3の両端部は、 昇降路の上部で、 それそれ綱止め 8， 9に接 続されている。  An intermediate portion of the main rope 3 is wound around a drive sheave 5 of a drive device 4 arranged above the hoistway. The car 1 and the counterweight 2 are raised and lowered by the driving force of the driving device 4. At the lower part of the car 1, a pair of car suspension wheels 6 around which the main rope 3 is wound are provided. Above the counterweight 2, a counterweight suspension wheel 7 around which the main rope 3 is wound is provided. Both ends of the main rope 3 are connected at the top of the hoistway, respectively, to ties 8,9.
エレべ一夕の運転を制御する制御盤 1 0には、 主索 3に内蔵された力一ボンフ イラメントの電気抵抗値を測定する電気抵抗測定装置 1 1が設けられている。 電 気抵抗測定装置 1 1は、 力一ボンフィラメントの両端部に接続されている。 また、 制御盤 1 0には、 電気抵抗測定装置 1 1による測定値が予め設定された 正常範囲内であるかどうかを判定する判定手段 1 2と、 測定値が判定手段 1 2で 異常と判定されたときに警報を発する警報手段 1 3とが設けられている。 実施の 形態 1による主索伸び検出装置は、 電気抵抗測定装置 1 1、 判定手段 1 2及び警 報手段 1 3を有している。  The control panel 10 for controlling the operation of the elevator is provided with an electric resistance measuring device 11 for measuring the electric resistance value of the power filament incorporated in the main cable 3. The electric resistance measuring devices 11 are connected to both ends of the filament. Also, the control panel 10 has a judging means 12 for judging whether the measured value by the electric resistance measuring device 11 is within a predetermined normal range, and a judging means 12 for judging that the measured value is abnormal. There is provided an alarm means 13 for issuing an alarm when the alarm is issued. The main rope elongation detecting device according to the first embodiment includes an electric resistance measuring device 11, a judging unit 12, and a warning unit 13.
このような主索伸び検出装置では、 必要なときに電気抵抗測定装置 1 1により 主索 3の力一ボンフィラメントの電気抵抗値が測定される。 カーボンフィラメン トは、 主索 3の全長に渡って配置されており、 主索 3に絰時的な伸びが生じると 主索 3と同様に伸長される。 即ち、 主索 3に伸びが生じると、 カーボンフィラメ ントの全長が伸び、 断面積が縮小され、 電気抵抗値が増大する。  In such a main rope elongation detecting device, the electric resistance value of the power filament of the main rope 3 is measured by the electric resistance measuring device 11 when necessary. The carbon filaments are arranged along the entire length of the main rope 3, and when the main rope 3 temporarily elongates, they are elongated in the same manner as the main rope 3. That is, when the main rope 3 is elongated, the entire length of the carbon filament is elongated, the cross-sectional area is reduced, and the electric resistance value is increased.
電気抵抗測定装置 1 1による測定値は、 判定手段 1 2により監視され、 異常が ないかどうかが判定される。 測定値が予め設定された正常範囲を超えると、 異常 検出信号が警報手段 1 3に送られ、 警報手段 1 3により警報が発せられる。 そし て、 警報を受けた保守員により、 ランバイ調整や主索 3の交換等の必要な処置が 行われる。  The value measured by the electric resistance measuring device 11 is monitored by the judging means 12 to judge whether there is any abnormality. If the measured value exceeds the preset normal range, an abnormality detection signal is sent to the alarm means 13 and an alarm is issued by the alarm means 13. Necessary measures such as adjusting the run-by and replacing the main rope 3 are performed by the maintenance personnel who have been alerted.
このような主索伸び検出装置によれば、 かご 1の位置に拘わらず、 必要なとき に主索 3の伸びを効率良く簡単に検出することができる。 また、 主索 3の伸びを 遠隔から自動的に確認することもでき、 保守点検に要する費用を低減することが できる。 実施の形態 2 . According to such a main rope elongation detecting device, it is possible to efficiently and easily detect the elongation of the main rope 3 when necessary, regardless of the position of the car 1. In addition, the extension of the main rope 3 can be automatically confirmed from a remote place, and the cost required for maintenance and inspection can be reduced. Embodiment 2
次に、 図 2はこの発明の実施の形態 2によるエレベ一夕の主索伸び検出装置の 要部を示す構成図である。 図において、 合成繊維ロープ製の主索 3は、 ァラミ ド 樹脂等からなる複数本の合成繊維ストランド 3 1と、 これらの合成繊維ストラン ド 3 1のうちの少なくとも一部のストランドにそれそれ全長に渡って内蔵された 導電性フィラメントとしての複数本のカーボンフィラメント 3 2とを有している c 電気抵抗測定装置 1 1は、 主索 3の一端部のみに接続されている。 主索 3の他 端部において、 合成繊維ストランド 3 1は、 端部接続子 3 3により 2本ずつ束ね られている。 また、 端部接続子 3 3により、 力一ボンフィラメント 3 2が 2本 1 組で電気的に直列に接続されている。  Next, FIG. 2 is a configuration diagram showing a main part of a main rope elongation detection device for an elevator in accordance with a second embodiment of the present invention. In the figure, a main rope 3 made of a synthetic fiber rope is composed of a plurality of synthetic fiber strands 31 made of, for example, aramide resin, and at least a part of the strands of the synthetic fiber strands 31 and extending over the entire length thereof. The electric resistance measuring device 11 having a plurality of carbon filaments 32 as conductive filaments embedded therein is connected to only one end of the main cable 3. At the other end of the main rope 3, two synthetic fiber strands 31 are bundled together by end connectors 33. The end filaments 33 are used to electrically connect the filaments 32 electrically in series in pairs.
電気抵抗測定装置 1 1には、 抵抗器 3 4を介してカーボンフィラメント 3 2に 電圧を印加する電源 3 5、 ローパスフィル夕 3 6及び A/D変換器 3 7が複数組- 設けられている。 他の構成は、 実施の形態 1と同様である。  The electric resistance measuring device 11 is provided with a plurality of sets of a power supply 35 for applying a voltage to the carbon filament 32 via a resistor 34, a low-pass filter 36 and an A / D converter 37. . Other configurations are the same as those of the first embodiment.
このような主索伸び検出装置によれば、 主索 3の端部で複数対の力一ボンフィ ラメント 3 2を電気的に接続したので、 電気抵抗測定装置 1 1は、 主索 3の一端 部のみに接続すればよく、 配線が容易である。 このため、 例えば 1 ： 1口一ビン グのエレべ一夕では、 主索 3のかご側端部又は釣合重り側端部のみに電気抵抗測 定装置 1 1を接続すればよく、 装置構成を簡単にすることができる。 実施の形態 3 .  According to such a main rope elongation detecting device, since a plurality of pairs of force filaments 32 are electrically connected at the end of the main rope 3, the electric resistance measuring device 11 is provided at one end of the main rope 3. Only to be connected, wiring is easy. For this reason, for example, in a one-by-one elevating elevator, the electric resistance measuring device 11 may be connected only to the car side end or the counterweight side end of the main rope 3. Can be simplified. Embodiment 3.
次に、 図 3はこの発明の実施の形態 3によるエレベー夕の主索伸び検出装置の 要部を示す構成図である。 この例では、 1本の主索 3に含まれる全ての力一ボン フィラメント 3 2が複数の端部接続子 3 3により電気的に直列に接続されている c 力一ボンフィラメント 3 2の総数は、 偶数本 （図では 6本） であり、 電気抵抗測 定装置 1 1は、 主索 3の一端部のみに接続されている。 他の構成は、 実施の形態 1と同様である。 Next, FIG. 3 is a configuration diagram showing a main part of a main rope elongation detection device for an elevator according to a third embodiment of the present invention. In this example, 1 electrically total c force one carbon filaments 3 2 connected in series all forces one carbon filaments 3 2 included in the main rope 3 is a plurality of end connector 3 3 of the present is The even number (six in the figure) is provided, and the electric resistance measuring device 11 is connected to only one end of the main cable 3. Other configurations are the same as those of the first embodiment.
このような主索伸び検出装置では、 電気抵抗測定装置 1 1は、 主索 3の一端部 のみに接続すればよく、 配線が容易である。 このため、 例えば 1 ： 1ロービング のエレべ一夕では、 主索 3のかご側端部又は釣合重り側端部のみに電気抵抗測定 装置 1 1を接続すればよく、 装置構成を簡単にすることができる。 また、 1本の 主索 3の全てのカーボンフィラメント 3 2が電気的に直列に接続されているため、 カーボンフィラメント 3 2の 1本ずつに対して電気抵抗値を測定する必要がなく、 電気抵抗測定装置 1 1の構成を簡単にすることができる。 実施の形態 4 . In such a main rope elongation detecting device, the electric resistance measuring device 11 need only be connected to one end of the main rope 3, and wiring is easy. For this reason, for example, 1: 1 roving In the elevator, the electric resistance measuring device 11 may be connected only to the car-side end or the counterweight-side end of the main rope 3, so that the device configuration can be simplified. In addition, since all the carbon filaments 32 of one main rope 3 are electrically connected in series, it is not necessary to measure the electric resistance value of each of the carbon filaments 3 2. The configuration of the measuring device 11 can be simplified. Embodiment 4.
なお、 実施の形態 3では、 1本の主索 3内の力一ボンフィラメント 3 2を電気 的に直列 tこ接続したが、 例えば図 4に示すように、 複数本の主索 3を用いる場合、 複数本の主索 3に渡って、 力一ボンフィラメン卜 3 2を電気的に直列に接続して もよく、 電気抵抗測定装置 1 1の構成をさらに簡単にすることができる。 実施の形態 5 .  In the third embodiment, the power filaments 32 in one main cable 3 are electrically connected in series.However, for example, as shown in FIG. 4, a plurality of main cables 3 are used. However, the force filaments 32 may be electrically connected in series over the plurality of main ropes 3, and the configuration of the electric resistance measuring device 11 can be further simplified. Embodiment 5
次に、 図 5はこの発明の実施の形態 5によるエレべ一夕の主索伸び検出装置を 示すブロック図である。 図において、 判定手段 1 2の C P U 1 4には、 電気抵抗 測定装置 1 1、 温度検出装置 2 1及び湿度検出装置 2 2からの信号が、 入力回路 1 5， 1 6を介して入力される。 温度検出装置 2 1は、 昇降路内の温度を検出し、 その情報を判定手段 1 2に出力する。 湿度検出装置 2 2は、 昇降路内の湿度を検 出し、 その情報を判定手段 1 2に出力する。  Next, FIG. 5 is a block diagram showing a main rope elongation detection device for an elevator according to a fifth embodiment of the present invention. In the figure, signals from an electric resistance measuring device 11, a temperature detecting device 21 and a humidity detecting device 22 are inputted to a CPU 14 of a judging means 12 via input circuits 15 and 16. . The temperature detecting device 21 detects the temperature in the hoistway and outputs the information to the judging means 12. The humidity detecting device 22 detects the humidity in the hoistway and outputs the information to the determining means 12.
判定手段 1 2には、 測定値と比較される設定値や温度や湿度に対する補正係数 等のデータを記憶しているメモリ 1 7が設けられている。 C P U 1 4で測定値が 異常と判定された場合には、 出力回路 1 8を介して警報手段 1 3に異常検出信号 が出力される。  The determination means 12 is provided with a memory 17 which stores data such as set values to be compared with measured values and correction coefficients for temperature and humidity. If the measured value is determined to be abnormal by the CPU 14, an abnormality detection signal is output to the alarm means 13 via the output circuit 18.
このように、 単に設定値と測定値とを比較するだけではなく、 昇降路内の温度 や湿度による主索 3の伸縮を考慮して、 判定を行うことにより、 主索 3の伸びの 検出精度を向上させることができる。  In this way, the judgment is made not only by comparing the set value with the measured value but also by taking into account the expansion and contraction of the main cable 3 due to the temperature and humidity in the hoistway. Can be improved.
また、 メモリ 1 7に初期電気抵抗値を記憶させておき、 この初期電気抵抗値と 測定値とを比較することにより、 伸び量の異常を判定するようにしてもよく、 主 索 3や力一ボンフィラメント 3 2の初期のばらつきの影響をなくして検出精度を 向上させることができる。 Also, the initial electric resistance value may be stored in the memory 17 and the abnormality of the elongation amount may be determined by comparing the initial electric resistance value with the measured value. Eliminate the effect of the initial variation of the Bon Filament 3 2 to increase the detection accuracy Can be improved.
さらに、 電気抵抗値の測定値をメモリ 1 7に記憶しておき、 複数回分の測定値 の平均値から伸び量の異常を判定するようにしてもよく、 測定誤差の影響をなく して検出精度を向上させることができる。  Furthermore, the measured value of the electric resistance value may be stored in the memory 17 and the abnormality of the elongation amount may be determined from the average value of the measured values of a plurality of times. Can be improved.
なお、 上記の例では、 1本の主索 3について、 複数本のカーボンフィラメント 3 2の電気抵抗値を測定したが、 少なくとも 1本以上のカーボンフィラメント 3 2の電気抵抗値を測定することにより、 主索 3の伸びを検出することができる。 但し、 複数本のカーボンフィラメント 3 2の電気抵抗値を測定することにより、 信頼性を向上させることができる。  In the above example, the electric resistance of a plurality of carbon filaments 32 was measured for one main rope 3, but by measuring the electric resistance of at least one or more carbon filaments 32, The extension of the main rope 3 can be detected. However, the reliability can be improved by measuring the electric resistance value of the plurality of carbon filaments 32.
また、 上記の例では、 導電性フィラメントとして力一ボンフィラメント 3 2を 示したが、 他の導電性材料からなるフィラメン卜であってもよい。  Further, in the above example, the carbon filament 32 is shown as the conductive filament, but a filament made of another conductive material may be used.
さらに、 上記の例では、 主索伸び検出装置を制御盤 1 0内に設けたが、 主索伸 び検出装置はかご 1や釣合重り 2上に配置し、 異常検出信号を制御盤 1 0に送る ようにしてもよい。  Further, in the above example, the main rope elongation detection device is provided in the control panel 10. However, the main rope elongation detection device is disposed on the car 1 and the counterweight 2, and transmits an abnormality detection signal to the control panel 10. It may be sent to.
さらにまた、 電気抵抗測定装置及び判定手段では、 電気抵抗値を数値として求 めて直接判定してもよいが、 所定の電流を通電したときの電圧を測定し、 その電 圧値が正常範囲内にあるかどうかを判定することにより、 電気抵抗値を間接的に 判定するようにしてもよい。  Furthermore, the electrical resistance measuring device and the determination means may determine the electrical resistance value as a numerical value and directly determine the electrical resistance value, but measure the voltage when a predetermined current is applied, and determine that the voltage value is within the normal range. By judging whether or not there is, the electric resistance value may be indirectly determined.

Claims

請求の範囲 The scope of the claims
1 . 合成繊維ストランドと導電性フィラメントとを有する合成繊維ロープ製の主 索により昇降路内にかごが吊り下げられているエレべ一夕に設けられ、 上記主索 の伸びを検出するエレべ一夕の主索伸び検出装置であって、 1. An elevator that is installed in an elevator where a car is suspended in a hoistway by a main rope made of a synthetic fiber rope having a synthetic fiber strand and a conductive filament, and that detects the elongation of the main rope. An evening main rope elongation detection device,
上記導電性フィラメントの電気抵抗値を測定する電気抵抗測定装置、 上記電気 抵抗測定装置による測定値が予め設定された正常範囲内であるかどうかを判定す る判定手段、 及び上記測定値が上記判定手段で異常と判定されたときに警報を発 する警報手段を備えているエレべ一夕の主索伸び検出装置。  An electric resistance measuring device for measuring the electric resistance value of the conductive filament, a judging means for judging whether or not the value measured by the electric resistance measuring device is within a predetermined normal range, and A main rope elongation detecting device for an elevator, which comprises an alarming means for issuing an alarm when it is determined that the means is abnormal.
2 . 上記主索に含まれる偶数本の上記導電性フィラメントを 1組として、 1組の 上記導電性フィラメントが互いに電気的に直列に接続されており、 上記電気抵抗 測定装置は、 上記主索の一端部のみに接続されている請求項 1記載のエレべ一夕 の主索伸び検出装置。 2. An even number of the conductive filaments included in the main rope are regarded as one set, and one set of the conductive filaments are electrically connected to each other in series. 3. The main rope elongation detecting device according to claim 1, wherein the main rope elongation detecting device is connected to only one end.
3 . 上記主索に含まれる全ての上記導電性フィラメン卜が互いに電気的に直列に 接続されている請求項 2記載のエレべ一夕の主索伸び検出装置。 3. The main rope elongation detecting apparatus according to claim 2, wherein all of the conductive filaments included in the main rope are electrically connected to each other in series.
4 . 上記かごは複数本の上記主索により吊り下げられており、 上記複数本の主索 に含まれる上記導電性フィラメン卜が互いに電気的に直列に接続されており、 上 記電気抵抗測定装置は、 上記複数本の主索の一端部のみに接続されている請求項 1記載のエレべ一夕の主索伸び検出装置。 4. The car is suspended by a plurality of the main ropes, and the conductive filaments included in the plurality of the main ropes are electrically connected in series to each other. The main line elongation detecting device for an elevator according to claim 1, wherein the main line is connected to only one end of each of the plurality of main lines.
5 . 上記昇降路内の温度を検出する温度検出装置が上記判定手段に接続されてお り、 上記判定手段では、 上記温度検出装置からの情報に応じて上記測定値に対す る判定が行われる請求項 1記載のエレべ一夕の主索伸び検出装置。 5. A temperature detecting device for detecting the temperature in the hoistway is connected to the determining means, and the determining means makes a determination on the measured value in accordance with information from the temperature detecting device. The main rope elongation detecting device according to claim 1, wherein:
6 . 上記昇降路内の湿度を検出する湿度検出装置が上記判定手段に接続されてお り、 上記判定手段では、 上記湿度検出装置からの情報に応じて上記測定値に対す る判定が行われる請求項 1'記載のエレべ一夕の主索伸び検出装置。 6. A humidity detecting device for detecting the humidity in the hoistway is connected to the determining means, and the determining means responds to the measured value in accordance with information from the humidity detecting device. The main rope elongation detecting device for elevating overnight according to claim 1 ', wherein the determination is made.
7 . 上記判定手段には、 上記導電性フィラメントの初期電気抵抗値を記憶したメ モリが設けられており、 上記判定手段では、 上記初期電気抵抗値と比較すること により、 上記測定値に対する判定が行われる請求項 1記載のエレペータの主索伸 び検出装置。 7. The memory for storing the initial electric resistance value of the conductive filament is provided in the determination means, and the determination means makes a determination on the measured value by comparing with the initial electric resistance value. 3. The main rope elongation detecting device for an erepeta according to claim 1, wherein the elongation is performed.
8 . 上記判定手段には、 複数回分の上記測定値を記憶するメモリが設けられてお り、 上記判定手段では、 上記複数回分の上記測定値の平均値を用いて判定が行わ れる請求項 1記載のエレべ一夕の主索伸び検出装置。 8. The determination means is provided with a memory for storing the measured values for a plurality of times, and the determination means makes a determination using an average value of the measured values for the plurality of times. The main rope elongation detection device of the described elevator.
PCT/JP2000/008673 2000-12-07 2000-12-07 Elevator main rope elongation sensor WO2002046082A1 (en)

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JP2002547827A JPWO2002046082A1 (en) 2000-12-07 2000-12-07 Elevator main rope stretch detection device
EP00979984A EP1357073A4 (en) 2000-12-07 2000-12-07 Elevator main rope elongation sensor
CNB008187940A CN1243658C (en) 2000-12-07 2000-12-07 Elevator main rope elongation sensor

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JP4737742B2 (en) * 2003-01-02 2011-08-03 テイジン・アラミド・ビー．ブイ． Aramid filament yarn with conductive finish
JP2007532437A (en) * 2004-03-16 2007-11-15 オーチス　エレベータ　カンパニー Tensile support strength monitoring system and method
US7753174B2 (en) 2005-03-12 2010-07-13 Thyssenkrupp Elevator Ag Elevator installation
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US9423369B2 (en) 2010-09-01 2016-08-23 Otis Elevator Company Resistance-based monitoring system and method
US9599582B2 (en) 2010-09-01 2017-03-21 Otis Elevator Company Simplified resistance based belt inspection
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US8807286B2 (en) 2012-12-30 2014-08-19 Kone Corporation Method and an arrangement in rope condition monitoring of an elevator
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CN106458510A (en) * 2014-02-18 2017-02-22 奥的斯电梯公司 Connector for inspection system of elevator tension member
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EP1357073A4 (en) 2006-05-31
CN1243658C (en) 2006-03-01
CN1433372A (en) 2003-07-30
JPWO2002046082A1 (en) 2004-04-08
EP1357073A1 (en) 2003-10-29

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