JPH06286957A - Deterioration detecting method for elevator rope - Google Patents
Deterioration detecting method for elevator ropeInfo
- Publication number
- JPH06286957A JPH06286957A JP7393693A JP7393693A JPH06286957A JP H06286957 A JPH06286957 A JP H06286957A JP 7393693 A JP7393693 A JP 7393693A JP 7393693 A JP7393693 A JP 7393693A JP H06286957 A JPH06286957 A JP H06286957A
- Authority
- JP
- Japan
- Prior art keywords
- rope
- deterioration
- elevator
- resistance value
- main rope
- 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
- 230000006866 deterioration Effects 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims description 12
- 238000005259 measurement Methods 0.000 abstract description 8
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 abstract description 6
- 238000007689 inspection Methods 0.000 abstract description 5
- 239000000725 suspension Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- 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
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】この発明は、エレベーター用ロー
プの摩耗や素線破断等の劣化を検出するためのエレベー
ター用ロープの劣化検出方法に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of detecting deterioration of an elevator rope for detecting deterioration such as wear and breakage of an elevator rope.
【0002】[0002]
【従来の技術】従来、エレベーター用ロープは鋼製であ
るため、経年使用により摩耗や素線の破断が生じる。こ
のようなエレベーター用ロープの劣化を検出する方法と
して、従来は、摩耗,素線破断,錆の発生及び変形等の
有無をロープ1本毎に目視で点検していた。また、この
ような目視による良否の判定基準は、JIS−A430
2「昇降機の検査基準」に準じている。2. Description of the Related Art Conventionally, since ropes for elevators are made of steel, wear and breakage of strands occur with age. As a method of detecting such deterioration of an elevator rope, conventionally, each rope has been visually inspected for wear, breakage of wire, occurrence of rust and deformation. In addition, such a visual judgment criterion is JIS-A430.
2 Complies with "Elevator inspection standards".
【0003】[0003]
【発明が解決しようとする課題】上記のような従来の目
視によるエレベーター用ロープの劣化検出方法では、ロ
ープ内部の素線破断や錆による痩せ等を見つけることが
困難であるとともに、点検に時間がかかるなどの問題点
があった。これに対し、ロープの劣化を検出するための
補完機器として、漏洩磁束の変化を利用した専用測定機
器もあるが、高価格であり、かつその取扱も簡単ではな
いため、一般には殆ど普及していない。SUMMARY OF THE INVENTION With the above-mentioned conventional method of visually detecting the deterioration of an elevator rope, it is difficult to find a broken wire in the rope or thinness due to rust, and it takes time for inspection. There was a problem such as this. On the other hand, as a complementary device to detect the deterioration of the rope, there is a dedicated measuring device that uses the change of the magnetic flux leakage, but it is generally popular because it is expensive and its handling is not easy. Absent.
【0004】この発明は、上記のような問題点を解決す
ることを課題としてなされたものであり、エレベーター
用ロープの劣化をより確実にかつ簡単に検出することが
でき、点検時間を短縮できるとともに、エレベーターの
信頼性を向上させることができるエレベーター用ロープ
の劣化検出方法を得ることを目的とする。The present invention has been made to solve the above problems, and it is possible to detect the deterioration of the elevator rope more reliably and easily, and to shorten the inspection time. The purpose of the present invention is to obtain a method for detecting deterioration of an elevator rope that can improve the reliability of the elevator.
【0005】[0005]
【課題を解決するための手段】この発明に係るエレベー
ター用ロープの劣化検出方法は、エレベーター用ロープ
の電気抵抗値を測定することにより、エレベーター用ロ
ープの有効な断面積の経時的な変化を検出するようにし
たものである。A method for detecting deterioration of an elevator rope according to the present invention detects changes in the effective sectional area of the elevator rope over time by measuring the electric resistance value of the elevator rope. It is something that is done.
【0006】[0006]
【作用】この発明においては、エレベーター用ロープの
電気抵抗値を測定し、その初期値や他のロープの電気抵
抗値と比較することにより、摩耗や素線破断による有効
断面積の減少を検出し、エレベーター用ロープの良否の
判定材料とする。In the present invention, the electric resistance value of the elevator rope is measured and compared with the initial value and the electric resistance value of other ropes to detect the decrease in the effective cross-sectional area due to wear or wire breakage. , Evaluate the quality of elevator ropes.
【0007】[0007]
【実施例】以下、この発明の実施例を図について説明す
る。図1はこの発明の一実施例によるエレベーター用ロ
ープの劣化検出方法を説明するための構成図である。図
において、1は昇降路上部の機械室に設置された巻上
機、2は巻上機1の綱車に巻き掛けられているエレベー
ター用ロープである複数本の主ロープ、3は主ロープ2
の一端部に吊り下げられているかご、4は主ロープ2の
他端部に吊り下げられている釣合重りである。Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a configuration diagram for explaining a method for detecting deterioration of an elevator rope according to an embodiment of the present invention. In the figure, 1 is a hoist installed in a machine room above the hoistway, 2 is a plurality of main ropes that are ropes for an elevator that are wound around a sheave of the hoist 1, and 3 is a main rope 2.
The baskets 4 suspended at one end of the main rope 2 are counterweights suspended at the other end of the main rope 2.
【0008】5はかご3の上部の梁、6は各主ロープ2
の一端部を絶縁するための絶縁材、7は各主ロープ2の
一端部に取り付けられている測定端子、8はかご3の上
部に取り付けられている測定ロープ切換器、9は各測定
端子7と測定ロープ切換器8との間に接続されている測
定用の配線、10は機械室に設置されている劣化検出
器、11は測定ロープ切換器8と劣化検出器10との間
に接続されている移動ケーブル、12は巻上機1と劣化
検出器10との間の配線である。5 is a beam above the car 3, 6 is each main rope 2
Is an insulating material for insulating one end of the main rope 2, 7 is a measurement terminal attached to one end of each main rope 2, 8 is a measurement rope switch attached to the top of the car 3, and 9 is each measurement terminal 7 For measurement, which is connected between the measuring rope switch 8 and the measuring rope switcher 10, 10 is a deterioration detector installed in the machine room, and 11 is connected between the measuring rope switcher 8 and the deterioration detector 10. A moving cable 12 is a wiring between the hoisting machine 1 and the deterioration detector 10.
【0009】上記の構成により、主ロープ2の劣化を検
出するには、かご3を最下階に移動させ、機械室の巻上
機1とかご3上部の測定端子7との間の電気抵抗値を劣
化検出器10により測定する。このような測定は、測定
ロープ切換器8を切り換えることにより全部の主ロープ
2に対して順次行う。この後、劣化検出器10により測
定結果と電気抵抗値の初期値との比較等の処理が行わ
れ、電気抵抗値が設定値以上であった場合や、各主ロー
プ2の電気抵抗値に許容範囲以上のアンバランスがあっ
た場合、エレベーターの運転が自動的に休止される。With the above structure, in order to detect deterioration of the main rope 2, the car 3 is moved to the lowest floor, and the electric resistance between the hoisting machine 1 in the machine room and the measuring terminal 7 above the car 3 is increased. The value is measured by the deterioration detector 10. Such measurement is sequentially performed on all the main ropes 2 by switching the measurement rope switching device 8. After that, the deterioration detector 10 performs processing such as comparison between the measurement result and the initial value of the electric resistance value, and when the electric resistance value is equal to or larger than the set value or the electric resistance value of each main rope 2 is allowed. If there is an imbalance beyond the range, elevator operation is automatically suspended.
【0010】上記のように、この実施例の方法では、電
気抵抗値を測定することにより主ロープ2の劣化を検出
することができる。即ち、主ロープ2に経時的な劣化、
例えば摩耗,素線破断及び錆などが発生すれば、主ロー
プ2の有効断面積が減少し電気抵抗値が増大するので、
電気抵抗値を劣化検出器10で測定・比較することによ
り主ロープ2の劣化を検出できる。従って、この実施例
の方法によれば、主ロープ2の内部の素線破断や錆の発
生など、目視では検出不可能な劣化も、複雑な装置を使
用することなく比較的簡単に短時間で検出することがで
きる。As described above, in the method of this embodiment, the deterioration of the main rope 2 can be detected by measuring the electric resistance value. That is, the main rope 2 is deteriorated with time,
For example, if abrasion, wire breakage, rust, etc. occur, the effective area of the main rope 2 decreases and the electrical resistance value increases.
The deterioration of the main rope 2 can be detected by measuring and comparing the electric resistance value with the deterioration detector 10. Therefore, according to the method of this embodiment, even if the deterioration of the main rope 2 that cannot be visually detected, such as the breakage of the strands or the occurrence of rust, occurs relatively easily and in a short time without using a complicated device. Can be detected.
【0011】なお、ローピングの方法は上記実施例に限
定されるものではなく、他のローピングのエレベーター
にもこの発明は適用でき、それぞれ必要に応じて、巻上
機綱車,そらせ車,かごの吊り車,釣合重りの吊り車及
び頂部綱車溝などをロープ毎に電気的に絶縁すればよ
い。The method of roping is not limited to the above-mentioned embodiment, and the present invention can be applied to elevators of other roping, and the hoisting sheave, the deflector, and the car can be used as needed. It is sufficient to electrically insulate the suspension vehicle, the suspension vehicle of the counterweight, and the top sheave groove for each rope.
【0012】例えば、2対1ローピングの場合、かごの
吊り車をロープ溝毎に絶縁するとともに、かご側のロー
プ端末を1本毎に絶縁し、かごが最下階にあるときに、
機械室の巻上機とかご側ロープの端末との間のロープ1
本毎の電気抵抗値を測定すればよい。For example, in the case of two-to-one roping, the suspension car of the car is insulated for each rope groove, and the rope end on the car side is insulated for each rope. When the car is on the lowest floor,
Rope 1 between the hoist in the machine room and the end of the car rope
The electrical resistance value for each book may be measured.
【0013】また、ベースメントタイプの場合には、頂
部綱車をロープ溝毎に絶縁するとともに、かご側のロー
プ端末を1本毎に絶縁し、かごが最下階にあるときに、
機械室の巻上機とかご側ロープの端末との間のロープ1
本毎の電気抵抗値を測定すればよい。In the case of the basement type, the top sheave is insulated for each rope groove, and the rope end on the car side is insulated for each rope. When the car is on the lowest floor,
Rope 1 between the hoist in the machine room and the end of the car rope
The electrical resistance value for each book may be measured.
【0014】さらに、上記実施例ではエレベーター用ロ
ープとして主ロープ2の劣化を検出する場合について説
明したが、例えば調速機用ロープの劣化についても検出
することができる。この場合、調速機及びロープ緊張用
張り車の溝を絶縁構造とするとともに、ロープの一端を
絶縁すればよい。Further, in the above embodiment, the case where the deterioration of the main rope 2 is detected as the elevator rope has been described, but for example, the deterioration of the speed governor rope can also be detected. In this case, the grooves of the governor and the tensioning wheel for rope tension may have an insulating structure, and one end of the rope may be insulated.
【0015】さらにまた、有効断面積の減少は全長にわ
たって均一ではないので、1本のロープを複数に区分け
して、それぞれの部分の電気抵抗値を測定・比較しても
よく、これにより劣化部分を特定することができる。Furthermore, since the reduction of the effective area is not uniform over the entire length, one rope may be divided into a plurality of parts, and the electric resistance values of the respective parts may be measured and compared. Can be specified.
【0016】[0016]
【発明の効果】以上説明したように、この発明のエレベ
ーター用ロープの劣化検出方法は、エレベーター用ロー
プの電気抵抗値を測定することにより、エレベーター用
ロープの有効な断面積の経時的な変化を検出するように
したので、ロープ内部の素線破断や錆などによる劣化も
検出することができ、従ってエレベーター用ロープの劣
化をより確実にかつ簡単に検出することができ、点検時
間を短縮できるとともに、エレベーターの信頼性を向上
させることができるなどの効果を奏する。As described above, the method for detecting deterioration of an elevator rope according to the present invention measures changes in the effective cross-sectional area of the elevator rope by measuring the electrical resistance value of the elevator rope. Since it is detected, deterioration due to wire breakage and rust inside the rope can be detected, so deterioration of the elevator rope can be detected more reliably and easily, and the inspection time can be shortened. , It is possible to improve the reliability of the elevator.
【図1】この発明の一実施例によるエレベーター用ロー
プの劣化検出方法を説明するための構成図である。FIG. 1 is a configuration diagram for explaining a method of detecting deterioration of an elevator rope according to an embodiment of the present invention.
2 主ロープ(エレベーター用ロープ) 2 Main rope (elevator rope)
Claims (1)
定することにより、上記エレベーター用ロープの有効な
断面積の経時的な変化を検出することを特徴とするエレ
ベーター用ロープの劣化検出方法。1. A method for detecting deterioration of an elevator rope, which comprises detecting the change over time in the effective sectional area of the elevator rope by measuring the electrical resistance value of the elevator rope.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7393693A JPH06286957A (en) | 1993-03-31 | 1993-03-31 | Deterioration detecting method for elevator rope |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7393693A JPH06286957A (en) | 1993-03-31 | 1993-03-31 | Deterioration detecting method for elevator rope |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH06286957A true JPH06286957A (en) | 1994-10-11 |
Family
ID=13532508
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7393693A Pending JPH06286957A (en) | 1993-03-31 | 1993-03-31 | Deterioration detecting method for elevator rope |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH06286957A (en) |
Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2004521042A (en) * | 2001-02-07 | 2004-07-15 | オーチス エレベータ カンパニー | Inspection device arrangement for elevator ropes |
US7123030B2 (en) | 1999-03-29 | 2006-10-17 | Otis Elevator Company | Method and apparatus for detecting elevator rope degradation using electrical resistance |
JP2007529395A (en) * | 2004-03-16 | 2007-10-25 | オーチス エレベータ カンパニー | System and method for measuring tensile support strength |
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 |
EP1914186A1 (en) * | 2006-10-18 | 2008-04-23 | ThyssenKrupp Aufzugswerke GmbH | Method and device for checking suspension means on lifts |
US20080149430A1 (en) * | 2006-12-04 | 2008-06-26 | Claudio De Angelis | Synthetic fiber rope |
JP2011102195A (en) * | 2011-01-28 | 2011-05-26 | Otis Elevator Co | System and method for monitoring tension support strength |
JP2011144051A (en) * | 2011-05-06 | 2011-07-28 | Otis Elevator Co | System and method for measuring strength of tensile support |
CN103068711A (en) * | 2010-09-01 | 2013-04-24 | 奥的斯电梯公司 | Resistance-based monitoring system and method |
WO2013151525A1 (en) * | 2012-04-02 | 2013-10-10 | Otis Elevator Company | Calibration of wear detection system |
JP2014129181A (en) * | 2012-12-30 | 2014-07-10 | Kone Corp | Method and arrangement for rope condition monitoring of elevator |
JP2016204118A (en) * | 2015-04-23 | 2016-12-08 | 三菱電機株式会社 | Oil supply device for main rope |
US9599582B2 (en) | 2010-09-01 | 2017-03-21 | Otis Elevator Company | Simplified resistance based belt inspection |
US9618409B2 (en) | 2012-07-03 | 2017-04-11 | Otis Elevator Company | Temperature compensation for monitoring a load bearing member |
EP3461779A1 (en) * | 2017-09-29 | 2019-04-03 | Otis Elevator Company | Rope deterioration detection |
-
1993
- 1993-03-31 JP JP7393693A patent/JPH06286957A/en active Pending
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2299251A1 (en) * | 1999-03-29 | 2011-03-23 | Otis Elevator Company | Method and apparatus for detecting elevator rope degradation using electrical or magnetic energy |
US7123030B2 (en) | 1999-03-29 | 2006-10-17 | Otis Elevator Company | Method and apparatus for detecting elevator rope degradation using electrical resistance |
JP2004521042A (en) * | 2001-02-07 | 2004-07-15 | オーチス エレベータ カンパニー | Inspection device arrangement for elevator ropes |
JP2007529395A (en) * | 2004-03-16 | 2007-10-25 | オーチス エレベータ カンパニー | System and method for measuring tensile support strength |
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 |
US7801690B2 (en) | 2004-03-16 | 2010-09-21 | Otis Elevator Company | Tensile support strength measurement system and method |
EP1914186A1 (en) * | 2006-10-18 | 2008-04-23 | ThyssenKrupp Aufzugswerke GmbH | Method and device for checking suspension means on lifts |
US8360208B2 (en) * | 2006-12-04 | 2013-01-29 | Inventio Ag | Synthetic fiber rope for supporting an elevator car |
US20080149430A1 (en) * | 2006-12-04 | 2008-06-26 | Claudio De Angelis | Synthetic fiber rope |
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 |
CN103068711A (en) * | 2010-09-01 | 2013-04-24 | 奥的斯电梯公司 | Resistance-based monitoring system and method |
CN103068711B (en) * | 2010-09-01 | 2015-06-17 | 奥的斯电梯公司 | Resistance-based monitoring system and method |
JP2013541479A (en) * | 2010-09-01 | 2013-11-14 | オーチス エレベータ カンパニー | Resistance-based monitoring system and method |
JP2011102195A (en) * | 2011-01-28 | 2011-05-26 | Otis Elevator Co | System and method for monitoring tension support strength |
JP2011144051A (en) * | 2011-05-06 | 2011-07-28 | Otis Elevator Co | System and method for measuring strength of tensile support |
WO2013151525A1 (en) * | 2012-04-02 | 2013-10-10 | Otis Elevator Company | Calibration of wear detection system |
RU2589443C2 (en) * | 2012-04-02 | 2016-07-10 | Отис Элевэйтор Компани | Calibration of wear detection system |
US9995711B2 (en) | 2012-04-02 | 2018-06-12 | Otis Elevator Company | Calibration of wear detection system |
US9618409B2 (en) | 2012-07-03 | 2017-04-11 | Otis Elevator Company | Temperature compensation for monitoring a load bearing member |
JP2014129181A (en) * | 2012-12-30 | 2014-07-10 | Kone Corp | Method and arrangement for rope condition monitoring of elevator |
JP2016204118A (en) * | 2015-04-23 | 2016-12-08 | 三菱電機株式会社 | Oil supply device for main rope |
EP3461779A1 (en) * | 2017-09-29 | 2019-04-03 | Otis Elevator Company | Rope deterioration detection |
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