WO2010134158A1 - エレベータの異常検出装置 - Google Patents
エレベータの異常検出装置 Download PDFInfo
- Publication number
- WO2010134158A1 WO2010134158A1 PCT/JP2009/059174 JP2009059174W WO2010134158A1 WO 2010134158 A1 WO2010134158 A1 WO 2010134158A1 JP 2009059174 W JP2009059174 W JP 2009059174W WO 2010134158 A1 WO2010134158 A1 WO 2010134158A1
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- WO
- WIPO (PCT)
- Prior art keywords
- magnetic
- car
- detection
- shield
- plate
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B1/00—Control systems of elevators in general
- B66B1/34—Details, e.g. call counting devices, data transmission from car to control system, devices giving information to the control system
- B66B1/3492—Position or motion detectors or driving means for the detector
-
- 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
Definitions
- the present invention relates to an elevator abnormality detection device that detects the presence or absence of an abnormality in a signal generation device that generates a signal corresponding to the movement of a car.
- an elevator in which a stop position detector provided in a car detects a landing position of a car by detecting a magnetic shielding plate provided in a hoistway.
- the stop position detector includes a reed switch and a permanent magnet.
- the stop position detector detects the magnetic shielding plate, and the landing position of the car is detected.
- a pulse generator for generating a traveling pulse corresponding to the traveling of the car is provided in the elevator driving motor.
- the position and speed of the car are calculated based on running pulses from the pulse generator.
- the stop position detector in order to measure the number of traveling pulses according to the length of the magnetic shielding plate, when the stop position detector starts detecting the magnetic shielding plate and when the stop position detector ends the detection of the magnetic shielding plate Since it is necessary to measure the time, the stop position detector needs to pass through the magnetic shielding plate. Therefore, for example, when the landing position of the car is only for the second floor, the stop position detector does not pass through the magnetic shielding plate, so the number of traveling pulses corresponding to the length of the magnetic shielding plate is set. It becomes impossible to measure.
- a photoelectric sensor using an LED or the like As a sensor that detects both the entry and exit of the detection object with high accuracy, a photoelectric sensor using an LED or the like is conceivable. However, when a photoelectric sensor is used, for example, into a sunlight hoistway The possibility of malfunctions due to incident light, smoke, etc. increases.
- An object of the present invention is to provide an elevator abnormality detection device that can detect an abnormality more reliably.
- the apparatus for detecting an abnormality of an elevator includes a magnetic shield provided at a predetermined position in a hoistway, a first detection region in which a magnetic field is formed, and the entrance of the magnetic shield to the first detection region.
- a second magnetic detector for detecting the entrance and exit of the magnetic shield from the second detection area, and a shield detection device provided in the car, and a signal corresponding to the movement of the car
- any one of the first and second detection regions from when the shield detection device detects the entry of the magnetic shield to one of the first and second detection regions is obtained based on the information from the signal generator, and the obtained moving distance is compared with the reference distance. Since the presence or absence of abnormality of the signal generator is determined, it is not necessary to detect the escape of the magnetic shield with respect to each of the first and second detection regions, and the first and second magnetic detections are detected in the magnetic shield. The presence or absence of abnormality of the signal generator can be determined without passing the device.
- the signal generator is abnormal even in an elevator where the floor position of the car is only for the second floor.
- the first and second magnetic detectors are not used. The accuracy of detection of the magnetic shield by the magnetic detector can be increased, and the abnormality of the elevator can be detected more reliably.
- FIG. 1 It is a block diagram which shows the elevator by Embodiment 1 of this invention. It is a block diagram which shows the plate detection apparatus of FIG. It is explanatory drawing explaining operation
- FIG. 1 is a block diagram showing an elevator according to Embodiment 1 of the present invention.
- a car 2 and a counterweight 3 are provided in a hoistway 1 so as to be movable in the vertical direction.
- a hoisting machine 4 that generates a driving force for moving the car 2 and the counterweight 3, and a deflecting wheel 5 disposed in the vicinity of the hoisting machine 4 are provided.
- the hoisting machine 4 has a hoisting machine main body 6 including a motor and a driving sheave 7 rotated by the hoisting machine main body 6.
- a suspension body (for example, a rope or a belt) 8 for suspending the car 2 and the counterweight 3 is wound around the baffle wheel 5 and the driving sheave 7. The car 2 and the counterweight 3 are moved in the vertical direction in the hoistway 1 by rotating the driving sheave 7.
- a speed governor having a speed governor sheave 9 is provided at the upper part of the hoistway 1, and a tension wheel 10 is provided at the lower part of the hoistway 1.
- a governor rope 11 is wound around the governor sheave 9 and the tension wheel 10. One end and the other end of the governor rope 11 are connected to a common connection member 12 provided on the side of the car 2. That is, the governor rope 11 is wound around the governor sheave 9 and the tension wheel 10 in this order from one end connected to the connection member 12 and reaches the other end connected to the connection member 12. .
- the governor rope 11 is moved around as the car 2 moves.
- the governor sheave 9 is rotated in accordance with the movement of the car 2.
- the speed governor is provided with an encoder (signal generator) 13 that generates a signal corresponding to the rotation of the speed governor sheave 9.
- the signal from the encoder 13 is a pulse signal. Therefore, the encoder 13 generates a pulse signal corresponding to the movement of the car 2.
- the car 2 can be landed at the landing 14 on each floor.
- a plurality of car position detection plates (magnetic shields) 15 arranged along the moving direction of the car 2 are fixed at predetermined positions corresponding to the positions of the landings 14.
- Each car position detection plate 15 is made of a material that shields magnetism (for example, iron or the like).
- Each car position detection plate 15 is arranged on a common straight line along the moving direction of the car 2.
- the length of the car position detection plate 15 in the moving direction of the car 2 is a predetermined length determined in advance.
- a plate detection device (shielding device detection device) 16 is provided on the upper side surface of the car 2.
- the plate detection device 16 is disposed away from the mounting plate 17 attached to the car 2 and the moving direction of the car 2, and the first magnetic detector 18 and the second magnetic sensor provided on the mounting plate 17, respectively.
- a type detector 19 is provided on the upper side surface of the car 2.
- the first and second magnetic detectors 18 and 19 are arranged on a common straight line along the moving direction of the car 2.
- the first and second magnetic detectors 18 are each formed with a groove (not shown) along the moving direction of the car 2.
- the car position detection plate 15 is passed through the respective groove portions of the first and second magnetic detectors 18 and 19 when the plate detection device 16 is moved in the hoistway 1 together with the car 2.
- FIG. 2 is a block diagram showing the plate detector 16 of FIG. As shown in the figure, the distance between the first magnetic detector 18 and the second magnetic detector 19 in the moving direction of the car 2 is a predetermined reference distance L determined in advance. . In this example, the first magnetic detector 18 is disposed above the second magnetic detector 19.
- the first magnetic detector 18 has a first permanent magnet and a first contact portion that is opened and closed when the magnetic field received from the first permanent magnet changes (none of which is shown). ).
- a first detection region (not shown) in which a magnetic field is formed by the first permanent magnet is provided in the groove of the first magnetic detector 18.
- the magnetic field received by the first contact portion from the first permanent magnet changes as the car position detection plate 15 enters and exits the first detection area. Therefore, the first contact portion is opened and closed by the car position detection plate 15 entering and exiting from the first detection area. As a result, the first magnetic detector 18 detects entry and exit of the car position detection plate 15 with respect to the first detection region.
- the second magnetic detector 19 has a second permanent magnet and a second contact portion that is opened and closed when the magnetic field received from the second permanent magnet changes (none of which is shown). ).
- a second detection region (not shown) in which a magnetic field is formed by a second permanent magnet is provided in the groove of the second magnetic detector 19.
- the magnetic field received by the second contact portion from the second permanent magnet changes as the car position detection plate 15 enters and exits the second detection area. Accordingly, the second contact portion is opened and closed by the car position detection plate 15 entering and exiting from the second detection area. As a result, the second magnetic detector 19 detects entry and exit of the car position detection plate 15 with respect to the second detection region.
- the car position detection plate 15 When the car 2 is at the landing position of each landing 14, the car position detection plate 15 has entered both the first and second detection areas. When the car 2 moving upward reaches the landing 14, the car position detection plate 15 enters the first detection area and then enters the second detection area. When the car 2 moving downwards reaches the landing 14, the car position detection plate 15 enters the second detection area and then enters the first detection area.
- the information from each of the encoder 13 and the plate detection device 16 is sent to a control device 20 that controls the operation of the elevator, as shown in FIG.
- An encoder cable 21 that transmits information (pulse signal) from the encoder 13 to the control device 20 is connected between the encoder 13 and the control device 20.
- a control cable 22 for transmitting information (detection signal) from the plate detection device 16 to the control device 20 is connected between the plate detection device 16 and the control device 20.
- the control device 20 determines whether the encoder 13 is abnormal based on information from the encoder 13, the first magnetic detector 18, and the second magnetic detector 19, respectively.
- control device 20 detects any one of the first and second detection regions from when the plate detection device 16 detects the entry of the car position detection plate 15 into one of the first and second detection regions. Based on the pulse signal (number of pulses) from the encoder 13, the moving distance D of the car 2 until the plate detecting device 16 detects the approach of the car position detecting plate 15 to the other side is obtained.
- the control device 20 stores in advance information on a predetermined reference distance L, which is the distance between the first and second magnetic detectors 18 and 19.
- the control device 20 determines the presence / absence of an abnormality of the encoder 13 by comparing the obtained moving distance D and the reference distance L. That is, the control device 20 determines that the encoder 13 is normal when the difference between the moving distance D and the reference distance L is within a predetermined allowable range (that is, the tolerance of the first and second magnetic detectors 18 and 19). When the difference between the moving distance D and the reference distance L is out of the allowable range, the encoder 13 is determined to be abnormal. When the abnormality determination is made, the control device 20 performs an operation such as stopping the car 2 at the nearest floor, for example.
- the car 2 is moved in the hoistway 1 under the control of the hoist 4 by the control device 20.
- the control device 20 controls the operation of the elevator while calculating the position and speed of the car 2 based on the pulse signal from the encoder 13.
- FIG. 3 is an explanatory diagram for explaining the operation when the car 2 moving upward in FIG. 1 lands on the landing 14.
- the plate detection device 16 approaches the car position detection plate 15 from below.
- the car position detection plate 15 first enters the first detection area, and only the first magnetic detector 18 starts detecting the car position detection plate 15 (FIG. 3). (A)).
- a detection signal is sent from the first magnetic detector 18 to the control device 20.
- the car position detection plate 15 enters the second detection area, and the second magnetic detector 19 starts detecting the car position detection plate 15 (FIG. 3C). At this time, a detection signal is sent from the second magnetic detector 19 to the control device 20. At this time, the state in which the first magnetic detector 18 detects the entry of the car position detection plate 15 is maintained.
- the car 2 is stopped at the landing position of the landing 14 with both the first and second magnetic detectors 18 and 19 detecting the entry of the car position detection plate 15 (see FIG. 3 (d)).
- the moving distance D of the car 2 from when the detection signal is received from the first magnetic detector 18 to when the detection signal is received from the second magnetic detector 19 is the encoder 13. Is calculated based on the number of pulses from.
- the movement distance D obtained by the calculation is compared with the reference distance L stored in advance by the control device 20.
- the control device 20 determines whether the encoder 13 is normal, and the difference between the moving distance D and the reference distance L is outside the allowable range. Sometimes, the control device 20 determines whether the encoder 13 is abnormal.
- the entry of the car position detection plate 15 is detected in the order of the second magnetic detector 19 and the first magnetic detector 18.
- the calculation of the movement distance D of the car 2 by the control device 20 is performed from when the detection signal from the second magnetic detector 19 is received to when the detection signal from the first magnetic detector 18 is received. This is performed based on the number of pulses from the encoder 13.
- the first and second detection regions from when the plate detection device 16 detects the entry of the car position detection plate 15 into one of the first and second detection regions is determined based on the information from the encoder 13, and the determined moving distance D and the reference Since it is determined whether or not the encoder 13 is abnormal by comparing with the distance L, it is not necessary to detect the escape of the car position detection plate 15 with respect to each of the first and second detection areas. Whether or not the encoder 13 is abnormal can be determined without passing the first and second magnetic detectors 18 and 19 through the detection plate 15. Kill. Therefore, even if the elevator is located only on the second floor, the presence / absence of the encoder 13 can be determined.
- the tolerance of the magnetic sensor is greatly different between the case of detecting the entrance of the plate and the case of detecting the escape of the plate. That is, the tolerance of the magnetic sensor when the plate enters is small and high accuracy of about ⁇ 1 mm, but the tolerance of the magnetic sensor when the plate escapes is as large as ⁇ 20 to 30 mm compared with the time of entry. Low.
- the plate detection device 16 of the present embodiment information when each of the first and second magnetic detectors 18 and 19 detects the escape of the car position detection plate 15 determines whether there is an abnormality in the elevator. Therefore, the accuracy of detection of the car position detection plate 15 by the first and second magnetic detectors 18 and 19 can be increased and the abnormality of the elevator can be detected more reliably. Can do.
- the speed of the car 2 is the actual speed.
- the failure of the encoder 13 can be detected at an early stage before such a situation is reached. Can do.
- each of the first and second magnetic detectors 18 and 19 is provided.
- the common car position detection plate 15 can be detected by the above-described method. Therefore, the number of car position detection plates 15 installed in the hoistway 1 can be reduced, and the number of parts can be reduced and the hoistway 1 can be saved in space. Moreover, the burden of the operation
- the first and second magnetic detectors 18 and 19 are arranged on a common straight line along the moving direction of the car 2, but are perpendicular to the moving direction of the car 2.
- the first and second magnetic detectors 18 and 19 may be shifted in the direction.
- a first plate (first shielding member) and a second plate (second shielding member) which are disposed in the hoistway 1 so as to be shifted from each other in a direction perpendicular to the moving direction of the car 2.
- first and second magnetic detectors 18 and 19 are fixed in accordance with the positions of the first and second magnetic detectors 18 and 19, respectively.
- the length and position of the 1st and 2nd plate in a magnetic shielding body are respectively made the same.
- the first plate is a dedicated plate for detection by the first magnetic detector 18, and the second plate is a dedicated plate for detection by the second magnetic detector 19. . Even if it does in this way, it becomes unnecessary to detect the escape of the 1st and 2nd plate with respect to the 1st and 2nd detection field, and the presence or absence of abnormality of encoder 13 can be detected more certainly.
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- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Computer Networks & Wireless Communication (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
実施の形態1.
図1は、この発明の実施の形態1によるエレベータを示す構成図である。図において、昇降路1内には、かご2及び釣合おもり3が上下方向へ移動可能に設けられている。昇降路1の上部には、かご2及び釣合おもり3を移動させる駆動力を発生する巻上機4と、巻上機4の近傍に配置されたそらせ車5とが設けられている。
Claims (3)
- 昇降路内の所定の位置に設けられた磁気遮蔽体、
磁界が形成された第1の検出領域が設けられ第1の検出領域に対する上記磁気遮蔽体の進入及び脱出を検出する第1の磁気式検出器と、かごの移動方向についての第1の磁気式検出器に対する距離が所定の基準距離となる位置に配置され、磁界が形成された第2の検出領域が設けられ第2の検出領域に対する上記磁気遮蔽体の進入及び脱出を検出する第2の磁気式検出器とを有し、上記かごに設けられた遮蔽体検出装置、及び
上記かごの移動に応じた信号を発生する信号発生装置、上記第1の磁気式検出器及び上記第2の磁気式検出器のそれぞれからの情報に基づいて、上記信号発生装置の異常の有無を判定する制御装置
を備え、
上記制御装置は、上記第1及び第2の検出領域のいずれか一方に対する上記磁気遮蔽体の進入を上記遮蔽体検出装置が検出したときから、上記第1及び第2の検出領域のいずれか他方に対する上記磁気遮蔽体の進入を上記遮蔽体検出装置が検出するときまでの上記かごの移動距離を上記信号発生装置からの情報に基づいて求め、求めた移動距離と上記基準距離とを比較することにより、上記信号発生装置の異常の有無を判定することを特徴とするエレベータの異常検出装置。 - 上記第1及び第2の磁気式検出器は、上記かごの移動方向に沿った共通の直線上に配置されていることを特徴とする請求項1に記載のエレベータの異常検出装置。
- 上記第1及び第2の磁気式検出器は、上記かごの移動方向に対して垂直な方向へ互いにずらして配置され、
上記磁気遮蔽体は、上記第1の検出領域に対する進入及び脱出を行う第1の遮蔽部材と、上記第2の検出領域に対する進入及び脱出を行う第2の遮蔽部材とを有していることを特徴とする請求項1に記載のエレベータの異常検出装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2011514238A JP5345210B2 (ja) | 2009-05-19 | 2009-05-19 | エレベータの異常検出装置 |
PCT/JP2009/059174 WO2010134158A1 (ja) | 2009-05-19 | 2009-05-19 | エレベータの異常検出装置 |
CN200980159308.8A CN102428019B (zh) | 2009-05-19 | 2009-05-19 | 电梯的异常检测装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2009/059174 WO2010134158A1 (ja) | 2009-05-19 | 2009-05-19 | エレベータの異常検出装置 |
Publications (1)
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WO2010134158A1 true WO2010134158A1 (ja) | 2010-11-25 |
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ID=43125858
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PCT/JP2009/059174 WO2010134158A1 (ja) | 2009-05-19 | 2009-05-19 | エレベータの異常検出装置 |
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JP (1) | JP5345210B2 (ja) |
CN (1) | CN102428019B (ja) |
WO (1) | WO2010134158A1 (ja) |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017013763A1 (ja) * | 2015-07-22 | 2017-01-26 | 三菱電機株式会社 | エレベータ装置 |
CN106698131A (zh) * | 2017-01-11 | 2017-05-24 | 广州广日电梯工业有限公司 | 一种电梯主机退磁检测方法 |
WO2017115100A1 (en) * | 2015-12-28 | 2017-07-06 | Otis Elevator Company | Elevator system runby monitoring and adjustment |
EP3569543A1 (en) * | 2018-05-14 | 2019-11-20 | LSIS Co., Ltd. | Method for controlling motor in elevator system |
JP2019202852A (ja) * | 2018-05-23 | 2019-11-28 | 三菱電機株式会社 | エレベーター装置 |
CN112938708A (zh) * | 2021-02-05 | 2021-06-11 | 广州广日电梯工业有限公司 | 电梯安全控制系统、安全控制方法以及安全控制装置 |
Families Citing this family (2)
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CN110235007A (zh) * | 2017-01-31 | 2019-09-13 | 因温特奥股份公司 | 用于电梯的悬吊构件装置和用于监控悬吊构件的监控设备 |
CN114834998A (zh) * | 2021-12-09 | 2022-08-02 | 铜陵有色金属集团铜冠矿山建设股份有限公司 | 一种用于矿山井下罐笼运行中的安全警示装置 |
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JP2006298538A (ja) * | 2005-04-19 | 2006-11-02 | Mitsubishi Electric Corp | エレベータ装置 |
WO2008068863A1 (ja) * | 2006-12-06 | 2008-06-12 | Mitsubishi Electric Corporation | エレベータの安全装置 |
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JPS59177275A (ja) * | 1983-03-25 | 1984-10-06 | 株式会社東芝 | エレベ−タ制御装置 |
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WO2003011734A1 (fr) * | 2001-07-31 | 2003-02-13 | Mitsubishi Denki Kabushiki Kaisha | Detecteur de position d'ascenseur |
WO2007063574A1 (ja) * | 2005-11-29 | 2007-06-07 | Mitsubishi Denki Kabushiki Kaisha | エレベータの制御装置 |
EP2075210B1 (en) * | 2006-10-17 | 2015-02-11 | Mitsubishi Electric Corporation | Position detection device for elevator |
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2009
- 2009-05-19 WO PCT/JP2009/059174 patent/WO2010134158A1/ja active Application Filing
- 2009-05-19 JP JP2011514238A patent/JP5345210B2/ja not_active Expired - Fee Related
- 2009-05-19 CN CN200980159308.8A patent/CN102428019B/zh not_active Expired - Fee Related
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JPS5366771U (ja) * | 1976-11-09 | 1978-06-05 | ||
JPH09110323A (ja) * | 1995-10-20 | 1997-04-28 | Lg Ind Syst Co Ltd | エレベータ位置検出器の故障判断方法 |
JP2006298538A (ja) * | 2005-04-19 | 2006-11-02 | Mitsubishi Electric Corp | エレベータ装置 |
WO2008068863A1 (ja) * | 2006-12-06 | 2008-06-12 | Mitsubishi Electric Corporation | エレベータの安全装置 |
Cited By (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2017013763A1 (ja) * | 2015-07-22 | 2017-01-26 | 三菱電機株式会社 | エレベータ装置 |
JPWO2017013763A1 (ja) * | 2015-07-22 | 2017-10-05 | 三菱電機株式会社 | エレベータ装置 |
WO2017115100A1 (en) * | 2015-12-28 | 2017-07-06 | Otis Elevator Company | Elevator system runby monitoring and adjustment |
CN106698131A (zh) * | 2017-01-11 | 2017-05-24 | 广州广日电梯工业有限公司 | 一种电梯主机退磁检测方法 |
CN106698131B (zh) * | 2017-01-11 | 2018-12-14 | 广州广日电梯工业有限公司 | 一种电梯主机退磁检测方法 |
EP3569543A1 (en) * | 2018-05-14 | 2019-11-20 | LSIS Co., Ltd. | Method for controlling motor in elevator system |
JP2019202852A (ja) * | 2018-05-23 | 2019-11-28 | 三菱電機株式会社 | エレベーター装置 |
JP7035805B2 (ja) | 2018-05-23 | 2022-03-15 | 三菱電機株式会社 | エレベーター装置 |
CN112938708A (zh) * | 2021-02-05 | 2021-06-11 | 广州广日电梯工业有限公司 | 电梯安全控制系统、安全控制方法以及安全控制装置 |
Also Published As
Publication number | Publication date |
---|---|
CN102428019B (zh) | 2013-12-25 |
CN102428019A (zh) | 2012-04-25 |
JPWO2010134158A1 (ja) | 2012-11-08 |
JP5345210B2 (ja) | 2013-11-20 |
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