WO2020039586A1 - Wear detection device and elevator hoist - Google Patents
Wear detection device and elevator hoist Download PDFInfo
- Publication number
- WO2020039586A1 WO2020039586A1 PCT/JP2018/031404 JP2018031404W WO2020039586A1 WO 2020039586 A1 WO2020039586 A1 WO 2020039586A1 JP 2018031404 W JP2018031404 W JP 2018031404W WO 2020039586 A1 WO2020039586 A1 WO 2020039586A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sheave
- rope
- conductive member
- wear
- detection device
- Prior art date
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
Definitions
- the present invention relates to a wear detecting device for detecting wear of a sheave, and an elevator hoist provided with the same.
- a sheave is provided with a sheave groove.
- a rope is wound around the rope. If the sheave is used for a long period of time, the sheave may wear due to friction between the rope and the sheave, which may hinder the operation of the elevator. Therefore, at the time of maintenance and inspection of an elevator, a sheave wear inspection is performed.
- the wear condition of the sheave is detected by capturing the shape of the sheave as image data by an imaging device and comparing the taken image data with the image data of the sheave before wear.
- an imaging device For example, see Patent Document 1.
- the present invention has been made to solve the above-described problems, and provides a wear detection device capable of facilitating a process of wear detection, and an elevator hoist provided with the same. It is the purpose.
- a wear detecting device is provided on a sheave having a rope groove around which the rope is wound, and determines a conductive member with which the rope comes into contact due to wear of the sheave, and determines an energized state between the rope and the conductive member.
- Equipment
- the process of detecting wear can be facilitated.
- FIG. 1 is a configuration diagram illustrating a main part of an elevator apparatus to which a wear detection device according to a first embodiment of the present invention is applied. It is sectional drawing which expands and shows a part of sheave of FIG.
- FIG. 3 is a cross-sectional view showing a state where wear of the sheave of FIG. 2 has progressed. It is a side view which expands and shows a part of sheave of FIG.
- FIG. 2 is a configuration diagram showing the sheave of FIG. 1 and the wear detection device of the first embodiment.
- FIG. 1 is a configuration diagram illustrating a main part of an elevator apparatus to which a wear detection device according to a first embodiment of the present invention is applied.
- a machine room 102 is provided above a hoistway 101.
- the elevator hoist 2 includes a sheave 4, a hoist motor (not shown), and a hoist brake (not shown).
- the hoist motor rotates the sheave 4.
- the hoist brakes keep the sheave 4 stationary or brake the rotation of the sheave 4.
- a plurality of ropes 5 are wound around the sheave 4 and the deflector sheave 3.
- FIG. 1 shows only one rope 5.
- Each rope 5 is made of a material having conductivity.
- a car 6 is connected to one end of the plurality of ropes 5.
- a counterweight 7 is connected to the other ends of the plurality of ropes 5.
- the car 6 and the counterweight 7 are suspended in the hoistway 101 by a plurality of ropes 5.
- the car 6 and the counterweight 7 move up and down in the hoistway 101 by rotating the sheave 4.
- FIG. 2 is a cross-sectional view showing a part of the sheave 4 of FIG. 1 in an enlarged manner.
- a plurality of rope grooves 8 are provided on the outer periphery of the sheave 4.
- Each rope 8 has a corresponding rope 5 inserted therein.
- Each rope groove 8 is provided continuously over the entire circumference of the sheave 4.
- the rope groove 8 has a rope groove main portion 8a and an undercut portion 8b.
- the cross-sectional shape of the rope groove main portion 8a is semicircular.
- the undercut 8b is provided at the bottom of the rope groove 8. That is, the undercut portion 8b is provided from the bottom of the rope groove main portion 8a toward the radial inside of the sheave 4.
- the cross-sectional shape of the undercut portion 8b is rectangular.
- An insulating member 10 is applied to the bottom surface and both side surfaces of the undercut portion 8b.
- the insulating member 10 is applied over the entire circumference of the undercut portion 8b.
- the cross-sectional shape of the insulating member 10 is U-shaped, and a groove is formed inside.
- a conductive member 11 is applied inside the insulating member 10.
- the conductive member 11 is provided in the undercut portion 8b.
- the conductive member 11 is applied over the entire circumference of the undercut portion 8b.
- the insulating member 10 is interposed between the conductive member 11 and the sheave 4 and electrically insulates the conductive member 11 from the sheave 4.
- the insulating member 10 and the conductive member 11 are similarly provided in all the rope grooves 8.
- the position of the end surface of the conductive member 11 on the radially outer side of the sheave 4 is a threshold for determining that the wear amount of the sheave 4 is abnormal.
- FIG. 4 is an enlarged side view showing a part of the sheave 4 of FIG.
- a bracket 12 is provided radially outside the sheave 4.
- the bracket 12 faces a portion of the outer periphery of the sheave 4 where the rope 5 is not wound. In a portion where the rope 5 is not wound, each conductive member 11 is exposed to the outside from the rope groove 8.
- a plurality of brushes 13 are provided on the bracket 12.
- the number of the brushes 13 is the same as the number of the conductive members 11.
- Each brush 13 is in contact with the corresponding conductive member 11. All the brushes 13 are electrically connected to the signal input device 14.
- the signal input device 14 is, for example, a power supply.
- FIG. 5 is a configuration diagram showing the sheave 4 of FIG. 1 and the wear detection device of the first embodiment.
- the wear detecting device according to the first embodiment includes a plurality of insulating members 10, a plurality of conductive members 11, a bracket 12, a plurality of brushes 13, a signal input device 14, a determination device 15, a first wiring 16a, and a second wiring 16b. , And an alarm device 17.
- the determination device 15 is electrically connected to a terminal on the car 6 side or a terminal on the counterweight 7 side of the rope 5 via the first wiring 16a. Further, the determination device 15 is electrically connected to the signal input device 14 by the second wiring 16b. Further, the determination device 15 individually determines the energization state of each rope 5 and the corresponding conductive member 11.
- the alerting device 17 is connected to the determining device 15.
- the notification device 17 notifies the external monitoring unit of the energized state determined by the determination device 15.
- the electric signal supplied from the signal input device 14 is transmitted from the conductive member 11 to the rope 5. Flows. Therefore, the signal input device 14, the brush 13, the conductive member 11, the rope 5, and the determination device 15 form a closed circuit. As a result, the determination device 15 detects that electricity is flowing between the rope 5 and the conductive member 11.
- the sheave 4 is provided with the conductive member 11.
- the rope 5 comes into contact with the conductive member 11 due to wear of the sheave 4. Further, the energization state between the rope 5 and the conductive member 11 is determined by the determination device 15. For this reason, advanced arithmetic processing is unnecessary, and the processing of wear detection can be facilitated.
- the insulating member 10 is interposed between the conductive member 11 and the sheave 4, even when the sheave 4 is made of a conductive material, the wear of the sheave 4 can be easily detected. .
- the conductive member 11 is provided in the undercut portion 8b, the conductive member 11 can be easily arranged on the sheave 4.
- the wear state of the sheave 4 can be monitored remotely, the on-site monitoring work can be omitted, and the time required for maintenance and inspection can be reduced.
- the conductive members 11 are provided corresponding to all the rope grooves 8, even when the wear state of the sheave 4 is uneven, it is determined that the wear amount of the most worn part has reached the threshold value. Can be detected.
- the insulating member 10 and the conductive member 11 do not necessarily need to be provided in all the rope grooves 8. That is, the insulating member 10 and the conductive member 11 may be provided only in some of the rope grooves 8.
- the insulating member 10 may not be provided.
- the signal input device 14 and the determination device 15 may not be permanently installed, but may be installed at the time of maintenance of the elevator. Further, the input of the signal may be performed by a worker at the time of maintenance and inspection. Further, at the time of maintenance and inspection, the worker may connect the determination device 15 such as a measuring instrument to the rope 5 and check the determination result.
- the signal input device 14 only needs to supply an electric signal that can be detected by the determination device 15 to the conductive member 11, and for example, a DC power supply, an AC power supply, or a pulse power supply can be used.
- the installation location of the conductive member 11 is not necessarily limited to the undercut portion 8b.
- a conductive member may be embedded in the sheave at a distance from the bottom surface of the sheave groove.
- the method of supplying the electric signal to the conductive member 11 is not limited to the method using the brush 13.
- the wear detecting device of the present invention can be applied to a sheave other than the sheave 4 of the elevator hoisting machine 2.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
A wear detection device according to the present invention comprises a conductive member and a determination device. The conductive member is provided on a sheave that has a rope groove around which a rope is wound, wherein the rope is brought into contact with the conductive member by wear of the sheave. The determination device determines a conduction state between the rope and the conductive member.
Description
この発明は、綱車の摩耗を検出する摩耗検出装置、及びそれを備えたエレベータ巻上機に関するものである。
The present invention relates to a wear detecting device for detecting wear of a sheave, and an elevator hoist provided with the same.
例えば、エレベータ巻上機において、綱車には綱溝が設けられている。綱溝には、ロープが巻き掛けられている。綱車を長期間使い続けた場合、ロープと綱車との摩擦によって、綱車に摩耗が発生し、エレベータの運行に支障を招くことがある。そのため、エレベータの保守点検の際には、綱車の摩耗検査が行われている。
For example, in an elevator hoist, a sheave is provided with a sheave groove. A rope is wound around the rope. If the sheave is used for a long period of time, the sheave may wear due to friction between the rope and the sheave, which may hinder the operation of the elevator. Therefore, at the time of maintenance and inspection of an elevator, a sheave wear inspection is performed.
従来の綱車の摩耗検査装置では、撮像装置により綱溝の形状を画像データとして取り込み、取り込んだ画像データを、摩耗前の綱溝の画像データと比較することによって、綱車の摩耗状態が検出される（例えば、特許文献１参照）。
In a conventional sheave wear inspection device, the wear condition of the sheave is detected by capturing the shape of the sheave as image data by an imaging device and comparing the taken image data with the image data of the sheave before wear. (For example, see Patent Document 1).
しかしながら、特許文献１に記載された従来の摩耗検査装置では、画像データの取り込み及び比較を行う必要があり、摩耗検出の処理が複雑であった。
However, in the conventional wear inspection device described in Patent Document 1, it is necessary to capture and compare image data, and the process of wear detection is complicated.
この発明は、上記のような課題を解決するためになされたものであって、摩耗検出の処理を容易にすることができる摩耗検出装置、及びそれを備えたエレベータ巻上機を提供することを目的とするものである。
The present invention has been made to solve the above-described problems, and provides a wear detection device capable of facilitating a process of wear detection, and an elevator hoist provided with the same. It is the purpose.
この発明による摩耗検出装置は、ロープが巻き掛けられる綱溝を有する綱車に設けられ、綱車の摩耗によりロープが接触する導電部材、及びロープと導電部材との間の通電状態を判定する判定装置を備えている。
A wear detecting device according to the present invention is provided on a sheave having a rope groove around which the rope is wound, and determines a conductive member with which the rope comes into contact due to wear of the sheave, and determines an energized state between the rope and the conductive member. Equipment.
この発明によれば、摩耗検出の処理を容易にすることができる。
According to the present invention, the process of detecting wear can be facilitated.
以下、この発明の実施の形態について、図面を参照して説明する。なお、各図において、同一もしくは相当部分は、同一符号で示し、重複する説明は、省略する。
Hereinafter, embodiments of the present invention will be described with reference to the drawings. In each of the drawings, the same or corresponding portions are denoted by the same reference numerals, and redundant description will be omitted.
実施の形態１．
図１は、この発明の実施の形態１による摩耗検出装置が適用されるエレベータ装置の要部を示す構成図である。図１において、昇降路１０１の上部には、機械室１０２が設けられている。 Embodiment 1 FIG.
FIG. 1 is a configuration diagram illustrating a main part of an elevator apparatus to which a wear detection device according to a first embodiment of the present invention is applied. In FIG. 1, amachine room 102 is provided above a hoistway 101.
図１は、この発明の実施の形態１による摩耗検出装置が適用されるエレベータ装置の要部を示す構成図である。図１において、昇降路１０１の上部には、機械室１０２が設けられている。 Embodiment 1 FIG.
FIG. 1 is a configuration diagram illustrating a main part of an elevator apparatus to which a wear detection device according to a first embodiment of the present invention is applied. In FIG. 1, a
機械室１０２には、エレベータ巻上機２及びそらせ車３が設置されている。エレベータ巻上機２は、綱車４、図示しない巻上機モータ、及び図示しない巻上機ブレーキを有している。巻上機モータは、綱車４を回転させる。巻上機ブレーキは、綱車４の静止状態を保持、又は綱車４の回転を制動する。
In the machine room 102, the elevator hoist 2 and the deflector 3 are installed. The elevator hoist 2 includes a sheave 4, a hoist motor (not shown), and a hoist brake (not shown). The hoist motor rotates the sheave 4. The hoist brakes keep the sheave 4 stationary or brake the rotation of the sheave 4.
綱車４及びそらせ車３には、複数本のロープ５が巻き掛けられている。図１では、ロープ５を１本のみ示している。各ロープ５は、導電性を有する材料により構成されている。
複数 A plurality of ropes 5 are wound around the sheave 4 and the deflector sheave 3. FIG. 1 shows only one rope 5. Each rope 5 is made of a material having conductivity.
複数のロープ５の一端には、かご６が接続されている。複数本のロープ５の他端には、釣合おもり７が接続されている。かご６及び釣合おもり７は、複数本のロープ５により、昇降路１０１内に吊り下げられている。また、かご６及び釣合おもり７は、綱車４を回転させることにより、昇降路１０１内を昇降する。
ご A car 6 is connected to one end of the plurality of ropes 5. A counterweight 7 is connected to the other ends of the plurality of ropes 5. The car 6 and the counterweight 7 are suspended in the hoistway 101 by a plurality of ropes 5. The car 6 and the counterweight 7 move up and down in the hoistway 101 by rotating the sheave 4.
図２は、図１の綱車４の一部を拡大して示す断面図である。綱車４の外周には、複数の綱溝８が設けられている。各綱溝８には、対応するロープ５が挿入されている。また、各綱溝８は、綱車４の全周にわたって連続して設けられている。
FIG. 2 is a cross-sectional view showing a part of the sheave 4 of FIG. 1 in an enlarged manner. A plurality of rope grooves 8 are provided on the outer periphery of the sheave 4. Each rope 8 has a corresponding rope 5 inserted therein. Each rope groove 8 is provided continuously over the entire circumference of the sheave 4.
綱溝８は、綱溝主部８ａとアンダーカット部８ｂとを有している。綱溝主部８ａの断面形状は、半円状である。アンダーカット部８ｂは、綱溝８の底部に設けられている。即ち、アンダーカット部８ｂは、綱溝主部８ａの底部から綱車４の径方向内側へ向けて設けられている。アンダーカット部８ｂの断面形状は、矩形である。
The rope groove 8 has a rope groove main portion 8a and an undercut portion 8b. The cross-sectional shape of the rope groove main portion 8a is semicircular. The undercut 8b is provided at the bottom of the rope groove 8. That is, the undercut portion 8b is provided from the bottom of the rope groove main portion 8a toward the radial inside of the sheave 4. The cross-sectional shape of the undercut portion 8b is rectangular.
アンダーカット部８ｂの底面及び両側面には、絶縁部材１０が塗布されている。絶縁部材１０は、アンダーカット部８ｂの全周にわたって塗布されている。また、絶縁部材１０の断面形状は、Ｕ字形であり、内側に溝が形成されている。
絶 縁 An insulating member 10 is applied to the bottom surface and both side surfaces of the undercut portion 8b. The insulating member 10 is applied over the entire circumference of the undercut portion 8b. The cross-sectional shape of the insulating member 10 is U-shaped, and a groove is formed inside.
絶縁部材１０の内側には、導電部材１１が塗布されている。導電部材１１は、アンダーカット部８ｂ内に設けられている。また、導電部材１１は、アンダーカット部８ｂの全周にわたって塗布されている。
導電 A conductive member 11 is applied inside the insulating member 10. The conductive member 11 is provided in the undercut portion 8b. The conductive member 11 is applied over the entire circumference of the undercut portion 8b.
絶縁部材１０は、導電部材１１と綱車４との間に介在しており、導電部材１１と綱車４とを電気的に絶縁している。絶縁部材１０及び導電部材１１は、全ての綱溝８に同様に設けられている。
The insulating member 10 is interposed between the conductive member 11 and the sheave 4 and electrically insulates the conductive member 11 from the sheave 4. The insulating member 10 and the conductive member 11 are similarly provided in all the rope grooves 8.
長期間の使用により綱車４の摩耗が進行すると、図３に示すように、ロープ５が導電部材１１に接触する。実施の形態１では、綱車４の径方向外側の、導電部材１１の端面の位置が、綱車４の摩耗量を異常と判定する閾値となっている。
(3) When the sheave 4 wears due to long-term use, the rope 5 comes into contact with the conductive member 11 as shown in FIG. In the first embodiment, the position of the end surface of the conductive member 11 on the radially outer side of the sheave 4 is a threshold for determining that the wear amount of the sheave 4 is abnormal.
図４は、図１の綱車４の一部を拡大して示す側面図である。綱車４の径方向外側には、ブラケット１２が設けられている。ブラケット１２は、綱車４の外周のロープ５が巻き掛けられていない部分に対向している。ロープ５が巻き掛けられていない部分では、各導電部材１１が綱溝８から外部に露出している。
FIG. 4 is an enlarged side view showing a part of the sheave 4 of FIG. A bracket 12 is provided radially outside the sheave 4. The bracket 12 faces a portion of the outer periphery of the sheave 4 where the rope 5 is not wound. In a portion where the rope 5 is not wound, each conductive member 11 is exposed to the outside from the rope groove 8.
ブラケット１２には、複数のブラシ１３が設けられている。ブラシ１３の数は、導電部材１１の数と同じである。各ブラシ１３は、対応する導電部材１１に接触している。全てのブラシ１３は、信号入力装置１４に電気的に接続されている。信号入力装置１４は、例えば電源である。
A plurality of brushes 13 are provided on the bracket 12. The number of the brushes 13 is the same as the number of the conductive members 11. Each brush 13 is in contact with the corresponding conductive member 11. All the brushes 13 are electrically connected to the signal input device 14. The signal input device 14 is, for example, a power supply.
図５は、図１の綱車４及び実施の形態１の摩耗検出装置を示す構成図である。実施の形態１の摩耗検出装置は、複数の絶縁部材１０、複数の導電部材１１、ブラケット１２、複数のブラシ１３、信号入力装置１４、判定装置１５、第１の配線１６ａ、第２の配線１６ｂ、及び発報装置１７を有している。
FIG. 5 is a configuration diagram showing the sheave 4 of FIG. 1 and the wear detection device of the first embodiment. The wear detecting device according to the first embodiment includes a plurality of insulating members 10, a plurality of conductive members 11, a bracket 12, a plurality of brushes 13, a signal input device 14, a determination device 15, a first wiring 16a, and a second wiring 16b. , And an alarm device 17.
判定装置１５は、第１の配線１６ａを介して、ロープ５のかご６側の端末又は釣合おもり７側の端末に電気的に接続されている。また、判定装置１５は、第２の配線１６ｂによって、信号入力装置１４に電気的に接続されている。また、判定装置１５は、各ロープ５と、対応する導電部材１１との通電状態を個別に判定する。
The determination device 15 is electrically connected to a terminal on the car 6 side or a terminal on the counterweight 7 side of the rope 5 via the first wiring 16a. Further, the determination device 15 is electrically connected to the signal input device 14 by the second wiring 16b. Further, the determination device 15 individually determines the energization state of each rope 5 and the corresponding conductive member 11.
発報装置１７は、判定装置１５に接続されている。発報装置１７は、判定装置１５により判定された通電状態を、外部の監視部に発報する。
The alerting device 17 is connected to the determining device 15. The notification device 17 notifies the external monitoring unit of the energized state determined by the determination device 15.
次に、動作について説明する。図２に示すように、綱車４が摩耗していない場合、ロープ５は、導電部材１１と接触していない。このため、信号入力装置１４によってロープ５に電気信号を供給しても、ロープ５と導電部材１１との間は通電しない。従って、判定装置１５では、ロープ５と導電部材１１との間が通電されていないことが検出される。
Next, the operation will be described. As shown in FIG. 2, when the sheave 4 is not worn, the rope 5 is not in contact with the conductive member 11. For this reason, even if an electric signal is supplied to the rope 5 by the signal input device 14, no current flows between the rope 5 and the conductive member 11. Therefore, the determination device 15 detects that no current is supplied between the rope 5 and the conductive member 11.
これに対して、綱車４の摩耗が進行し、図３に示すように、ロープ５が導電部材１１に接触すると、信号入力装置１４から供給された電気信号が、導電部材１１からロープ５に流れる。そのため、信号入力装置１４、ブラシ１３、導電部材１１、ロープ５、及び判定装置１５は、閉回路となる。これにより、判定装置１５では、ロープ５と導電部材１１との間が通電していることが検出される。
On the other hand, as the sheave 4 wears and the rope 5 contacts the conductive member 11 as shown in FIG. 3, the electric signal supplied from the signal input device 14 is transmitted from the conductive member 11 to the rope 5. Flows. Therefore, the signal input device 14, the brush 13, the conductive member 11, the rope 5, and the determination device 15 form a closed circuit. As a result, the determination device 15 detects that electricity is flowing between the rope 5 and the conductive member 11.
このように、ロープ５と導電部材１１との間の通電状態を検出することによって、綱車４の摩耗量が閾値に達しているかどうかを検出することができる。
As described above, by detecting the energized state between the rope 5 and the conductive member 11, it is possible to detect whether the amount of wear of the sheave 4 has reached the threshold value.
このような摩耗検出装置では、綱車４に導電部材１１が設けられている。導電部材１１には、綱車４の摩耗によりロープ５が接触する。また、判定装置１５によって、ロープ５と導電部材１１との間の通電状態が判定される。このため、高度な演算処理が不要であり、摩耗検出の処理を容易にすることができる。
で は In such a wear detecting device, the sheave 4 is provided with the conductive member 11. The rope 5 comes into contact with the conductive member 11 due to wear of the sheave 4. Further, the energization state between the rope 5 and the conductive member 11 is determined by the determination device 15. For this reason, advanced arithmetic processing is unnecessary, and the processing of wear detection can be facilitated.
また、導電部材１１と綱車４との間に絶縁部材１０が介在しているので、綱車４が導電材料で構成されている場合でも、綱車４の摩耗を容易に検出することができる。
Further, since the insulating member 10 is interposed between the conductive member 11 and the sheave 4, even when the sheave 4 is made of a conductive material, the wear of the sheave 4 can be easily detected. .
また、導電部材１１がアンダーカット部８ｂ内に設けられているので、導電部材１１を綱車４に容易に配置することができる。
Since the conductive member 11 is provided in the undercut portion 8b, the conductive member 11 can be easily arranged on the sheave 4.
また、判定装置１５により判定された通電状態は、発報装置１７により監視部に発報されるため、綱車４の摩耗に対して、早急に対応することができる。
通電 Moreover, since the power supply state determined by the determination device 15 is reported to the monitoring unit by the reporting device 17, it is possible to quickly respond to the wear of the sheave 4.
また、判定装置１５の判定結果が通電の有無を示すデータのみであるため、監視部に送信するデータ量を低減させることができる。
{Circle around (2)} Since the determination result of the determination device 15 is only data indicating whether or not power is supplied, the amount of data transmitted to the monitoring unit can be reduced.
また、綱車４の摩耗状態を遠隔で監視できるため、現場での監視作業を省略することができ、保守点検に要する時間を削減することができる。
Also, since the wear state of the sheave 4 can be monitored remotely, the on-site monitoring work can be omitted, and the time required for maintenance and inspection can be reduced.
また、全ての綱溝８に対応して導電部材１１が設けられているので、綱車４の摩耗状態に偏りがある場合でも、最も摩耗している部分の摩耗量が閾値に達したことを検出することができる。
In addition, since the conductive members 11 are provided corresponding to all the rope grooves 8, even when the wear state of the sheave 4 is uneven, it is determined that the wear amount of the most worn part has reached the threshold value. Can be detected.
なお、絶縁部材１０及び導電部材１１は、必ずしもすべての綱溝８に設けなくてもよい。即ち、一部の綱溝８のみに絶縁部材１０及び導電部材１１を設けてもよい。
In addition, the insulating member 10 and the conductive member 11 do not necessarily need to be provided in all the rope grooves 8. That is, the insulating member 10 and the conductive member 11 may be provided only in some of the rope grooves 8.
また、例えば、綱溝８の表面が電気絶縁材で構成されている場合、又は導電部材が電気絶縁材で被覆されている場合、絶縁部材１０を設けなくてもよい。
In addition, for example, when the surface of the rope groove 8 is made of an electric insulating material, or when the conductive member is covered with the electric insulating material, the insulating member 10 may not be provided.
また、信号入力装置１４及び判定装置１５は、常設とせず、エレベータの保守点検の際に設置してもよい。また、信号の入力は、保守点検時に作業員が行ってもよい。また、保守点検時に、計測器等の判定装置１５を作業員がロープ５に接続し、判定結果を作業員が確認してもよい。
The signal input device 14 and the determination device 15 may not be permanently installed, but may be installed at the time of maintenance of the elevator. Further, the input of the signal may be performed by a worker at the time of maintenance and inspection. Further, at the time of maintenance and inspection, the worker may connect the determination device 15 such as a measuring instrument to the rope 5 and check the determination result.
また、信号入力装置１４は、判定装置１５において検出できる電気信号を導電部材１１に供給するものであればよく、例えば、直流電源、交流電源、又はパルス電源を用いることができる。
The signal input device 14 only needs to supply an electric signal that can be detected by the determination device 15 to the conductive member 11, and for example, a DC power supply, an AC power supply, or a pulse power supply can be used.
また、導電部材１１の設置場所は、必ずしもアンダーカット部８ｂに限定されない。例えば、綱車が電気絶縁材で構成されている場合、綱溝の底面に対して間隔をおいて、綱車に導電部材を埋め込んでもよい。
設置 Further, the installation location of the conductive member 11 is not necessarily limited to the undercut portion 8b. For example, when the sheave is made of an electrically insulating material, a conductive member may be embedded in the sheave at a distance from the bottom surface of the sheave groove.
また、導電部材１１への電気信号の供給方法は、ブラシ１３による方法に限られるものではない。
The method of supplying the electric signal to the conductive member 11 is not limited to the method using the brush 13.
また、この発明の摩耗検出装置は、エレベータ巻上機２の綱車４以外の綱車にも適用することができる。
The wear detecting device of the present invention can be applied to a sheave other than the sheave 4 of the elevator hoisting machine 2.
２ エレベータ巻上機、４ 綱車、５ ロープ、８ 綱溝、８ｂ アンダーカット部、１０ 絶縁部材、１１ 導電部材、１５ 判定装置、１７ 発報装置。
{2} elevator hoisting machine, 4} sheave, 5 rope, 8} rope groove, 8b undercut, 10 insulating member, 11 conductive member, 15 judgment device, 17 alarm device.
Claims (6)
- ロープが巻き掛けられる綱溝を有する綱車に設けられ、前記綱車の摩耗により前記ロープが接触する導電部材、及び
前記ロープと前記導電部材との間の通電状態を判定する判定装置
を備えている摩耗検出装置。 A conductive member that is provided on a sheave having a rope groove around which the rope is wound, and that contacts the rope due to wear of the sheave, and a determination device that determines an energized state between the rope and the conductive member. Wear detector. - 前記導電部材と前記綱車との間に介在し、前記導電部材と前記綱車とを電気的に絶縁する絶縁部材
をさらに備えている請求項１に記載の摩耗検出装置。 The wear detecting device according to claim 1, further comprising: an insulating member interposed between the conductive member and the sheave and electrically insulating the conductive member and the sheave. - 前記導電部材は、前記綱溝の底部に設けられているアンダーカット部内に設けられる請求項１又は請求項２に記載の摩耗検出装置。 The wear detecting device according to claim 1 or 2, wherein the conductive member is provided in an undercut portion provided at a bottom of the rope groove.
- 前記判定装置により判定された前記通電状態を、監視部に発報する発報装置
をさらに備えている請求項１から請求項３までのいずれか１項に記載の摩耗検出装置。 The wear detection device according to any one of claims 1 to 3, further comprising: a notification device that notifies the monitoring unit of the energization state determined by the determination device. - 前記綱車には、複数の前記綱溝が設けられており、
各前記綱溝に対応して、前記導電部材が設けられている請求項１から請求項４までのいずれか１項に記載の摩耗検出装置。 The sheave is provided with a plurality of the sheave grooves,
The wear detection device according to any one of claims 1 to 4, wherein the conductive member is provided corresponding to each of the rope grooves. - 前記綱車、及び
請求項１から請求項５のいずれか１項に記載の摩耗検出装置
を備えているエレベータ巻上機。 An elevator hoist comprising the sheave and the wear detecting device according to any one of claims 1 to 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/031404 WO2020039586A1 (en) | 2018-08-24 | 2018-08-24 | Wear detection device and elevator hoist |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2018/031404 WO2020039586A1 (en) | 2018-08-24 | 2018-08-24 | Wear detection device and elevator hoist |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2020039586A1 true WO2020039586A1 (en) | 2020-02-27 |
Family
ID=69592923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/JP2018/031404 WO2020039586A1 (en) | 2018-08-24 | 2018-08-24 | Wear detection device and elevator hoist |
Country Status (1)
| Country | Link |
|---|---|
| WO (1) | WO2020039586A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117062768A (en) * | 2021-03-09 | 2023-11-14 | 三菱电机楼宇解决方案株式会社 | Elevator sheave and sheave inspection method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55167104U (en) * | 1979-05-21 | 1980-12-01 | ||
| JPS5612503A (en) * | 1979-07-13 | 1981-02-06 | Hitachi Ltd | Rope groove abrasion detecter for hoist sheave of elevator |
| JPS57203133U (en) * | 1981-06-22 | 1982-12-24 | ||
| JPS6425708U (en) * | 1987-08-05 | 1989-02-13 | ||
| US20120043980A1 (en) * | 2009-02-27 | 2012-02-23 | Brian Investments Pty Ltd | Wear sensor |
| JP2017003410A (en) * | 2015-06-10 | 2017-01-05 | フジテック株式会社 | Rope groove measurement device and rope groove measurement method |
-
2018
- 2018-08-24 WO PCT/JP2018/031404 patent/WO2020039586A1/en active Application Filing
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55167104U (en) * | 1979-05-21 | 1980-12-01 | ||
| JPS5612503A (en) * | 1979-07-13 | 1981-02-06 | Hitachi Ltd | Rope groove abrasion detecter for hoist sheave of elevator |
| JPS57203133U (en) * | 1981-06-22 | 1982-12-24 | ||
| JPS6425708U (en) * | 1987-08-05 | 1989-02-13 | ||
| US20120043980A1 (en) * | 2009-02-27 | 2012-02-23 | Brian Investments Pty Ltd | Wear sensor |
| JP2017003410A (en) * | 2015-06-10 | 2017-01-05 | フジテック株式会社 | Rope groove measurement device and rope groove measurement method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117062768A (en) * | 2021-03-09 | 2023-11-14 | 三菱电机楼宇解决方案株式会社 | Elevator sheave and sheave inspection method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6002775B2 (en) | Brake torque monitoring and condition evaluation | |
| EP1275608B1 (en) | Suspension rope wear detector | |
| JPS6017754B2 (en) | Wire rope abnormality detection device | |
| WO2015177885A1 (en) | Elevator position detecting device | |
| WO2020039586A1 (en) | Wear detection device and elevator hoist | |
| EP3326954A1 (en) | Elevator arrangement with a camera for visual inspection of a suspension traction member | |
| KR20120052810A (en) | Detector of breaking wirerope for elevator | |
| JP4317863B2 (en) | Elevator | |
| US5886308A (en) | Rope speed monitoring assembly and method | |
| JP6625497B2 (en) | Abnormality diagnosis device and abnormality diagnosis method for elevator brake | |
| JPWO2016133100A1 (en) | Abnormality diagnosis system | |
| JP6243683B2 (en) | Elevator drum brake inspection device | |
| WO2012162853A1 (en) | Sheave monitor | |
| JP6165078B2 (en) | Elevator guide device and elevator using the same | |
| JP6654513B2 (en) | Elevator system, maintenance device and maintenance method thereof | |
| JP6939994B2 (en) | Groove wear detector | |
| US20170001831A1 (en) | Pulley for elevator system, elevator system with pulley and method for monitoring elevator system | |
| JP2004099186A (en) | Rope diagnostic device for elevator machine | |
| JP2012153458A (en) | Elevator device and rope inspection device | |
| AU2015352498B2 (en) | Elevator system | |
| JP2002348068A (en) | Rope diagnosing device of elevator | |
| KR20170078943A (en) | Failure prediction system of an elevator | |
| JP6067813B1 (en) | Elevator derailment detector | |
| JP2009132482A (en) | Device for detecting fracture of rope for elevator | |
| JP6688534B1 (en) | Elevator rope diagnostic device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 18931132 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: DE |
|
| 122 | Ep: pct application non-entry in european phase |
Ref document number: 18931132 Country of ref document: EP Kind code of ref document: A1 |
|
| NENP | Non-entry into the national phase |
Ref country code: JP |