WO2022190205A1 - Elevator pulley and pulley inspection method - Google Patents

Elevator pulley and pulley inspection method Download PDF

Info

Publication number
WO2022190205A1
WO2022190205A1 PCT/JP2021/009265 JP2021009265W WO2022190205A1 WO 2022190205 A1 WO2022190205 A1 WO 2022190205A1 JP 2021009265 W JP2021009265 W JP 2021009265W WO 2022190205 A1 WO2022190205 A1 WO 2022190205A1
Authority
WO
WIPO (PCT)
Prior art keywords
car
vibration
elevator
pulley
rope
Prior art date
Application number
PCT/JP2021/009265
Other languages
French (fr)
Japanese (ja)
Inventor
康雅 飯田
Original Assignee
三菱電機ビルテクノサービス株式会社
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 三菱電機ビルテクノサービス株式会社 filed Critical 三菱電機ビルテクノサービス株式会社
Priority to PCT/JP2021/009265 priority Critical patent/WO2022190205A1/en
Priority to CN202180095374.4A priority patent/CN117062768A/en
Priority to JP2023504917A priority patent/JP7444330B2/en
Publication of WO2022190205A1 publication Critical patent/WO2022190205A1/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
    • B66B11/04—Driving gear ; Details thereof, e.g. seals
    • B66B11/08—Driving gear ; Details thereof, e.g. seals with hoisting rope or cable operated by frictional engagement with a winding drum or sheave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B3/00—Applications of devices for indicating or signalling operating conditions of elevators
    • 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
    • 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

Definitions

  • This disclosure relates to an elevator pulley and a pulley inspection method.
  • Patent document 1 discloses a measuring jig for rope grooves of elevators. According to the measuring jig, the condition of the rope groove can be determined.
  • the present disclosure was made to solve the above problems. SUMMARY OF THE DISCLOSURE It is an object of the present disclosure to provide an elevator pulley and pulley inspection method that can easily determine the wear condition of the rope grooves.
  • An elevator pulley includes a main body having a rope groove around which an elevator rope is wound and an undercut groove formed at the bottom of the rope groove; and at least one detector provided closer to the outer periphery of the main body than the bottom of the undercut groove.
  • An elevator pulley inspection method includes a vibration detector installation step of installing a vibration detector in an elevator car using a pulley, and starting up and down of the car after the vibration detector installation step. and a car vibration detection step of detecting vibration of the car with the vibration detector in a state in which the pulley rotates following the car ascent and descent after the car ascent and descent process.
  • the detection body is provided closer to the outer circumference of the main body than the bottom of the undercut groove in a part of the interior of the undercut groove. Therefore, the wear state of the rope groove 14 can be easily determined.
  • FIG. 1 is a configuration diagram of an elevator system to which an elevator pulley in Embodiment 1 is applied;
  • FIG. 1 is a front view of a sheave as a pulley of an elevator in Embodiment 1.
  • FIG. 2 is a cross-sectional view of a main part of a sheave as a pulley of an elevator in Embodiment 1.
  • FIG. FIG. 4 is a cross-sectional view of the sheave as the pulley of the elevator in Embodiment 1 at a position where a detection body is driven;
  • FIG. 1 is a configuration diagram of an elevator system to which an elevator pulley in Embodiment 1 is applied;
  • FIG. 1 is a front view of a sheave as a pulley of an elevator in Embodiment 1.
  • FIG. 2 is a cross-sectional view of a main part of a sheave as a pulley of an elevator in Embodiment 1.
  • FIG. FIG. 4 is a
  • FIG. 4 is a cross-sectional view showing a worn state of a rope groove at a position where a detection body is driven into a sheave as a pulley of an elevator according to Embodiment 1;
  • FIG. 4 is a cross-sectional view showing a worn state of a rope groove at a position where a detection body is not driven in the sheave as the pulley of the elevator according to Embodiment 1;
  • FIG. 4 is a cross-sectional view showing the state of progress of wear at the position where the detection body is driven into the sheave as the pulley of the elevator according to Embodiment 1;
  • FIG. 4 is a cross-sectional view showing the state of progress of wear at the position where the detection body is driven into the sheave as the pulley of the elevator according to Embodiment 1;
  • FIG. 4 is a cross-sectional view showing the state of progress of wear at a position where the detection body is not driven in the sheave as the pulley of the elevator according to Embodiment 1;
  • FIG. 4 is a front view of a main part showing the state of progress of wear of a sheave as a pulley of the elevator in Embodiment 1;
  • FIG. 4 is a diagram for explaining a method for inspecting a sheave as a pulley of an elevator according to Embodiment 1;
  • FIG. 1 is a configuration diagram of an elevator system to which an elevator pulley in Embodiment 1 is applied.
  • the hoistway 1 runs through each floor of the building (not shown).
  • the hoist 2 is provided above the hoistway 1 .
  • the hoist 2 includes a sheave 2a as a pulley.
  • the main rope 3 is wound around the sheave 2a.
  • a pair of car-side guide rails 4 are provided inside the hoistway 1.
  • the longitudinal direction of each of the pair of car-side guide rails 4 is the vertical direction.
  • the car 5 is provided inside the hoistway 1 .
  • the car 5 is supported on one side of the main rope 3 from below via a pair of car-side suspension wheels 5a as pulleys.
  • the car 5 is guided vertically by a pair of car-side guide rails 4 .
  • a pair of weight-side guide rails 6 are provided inside the hoistway 1 .
  • the longitudinal direction of each of the pair of weight-side guide rails 6 is the vertical direction.
  • a counterweight 7 is provided inside the hoistway 1 .
  • the upper part of the counterweight 7 is supported on the other side of the main rope 3 via a weight-side suspension wheel 7a as a pulley.
  • a counterweight 7 is guided vertically by a pair of weight-side guide rails 6 .
  • the governor 8 is provided above the hoistway 1 as a pulley.
  • a tension pulley 9 is provided in the lower part of the hoistway 1 as a pulley.
  • the governor rope 10 is provided endlessly.
  • a governor rope 10 is wound around a governor 8 and a tension wheel 9. - ⁇
  • the control device 11 is provided above the hoistway 1.
  • a controller 11 is provided to control the elevator as a whole.
  • the control device 11 rotates the hoist 2.
  • the sheave 2 a rotates following the rotation of the hoist 2 .
  • the main rope 3 moves following the rotation of the sheave 2a.
  • the car 5 and the counterweight 7 follow the movement of the main rope 3 and move up and down in opposite directions.
  • the governor rope 10 moves following the elevation of the car 5 .
  • the governor 8 rotates following the movement of the governor rope 10 .
  • the control device 11 recognizes the vertical position of the car 5 based on the rotational speed of the governor 8 .
  • FIG. 2 is a front view of a sheave as a pulley of the elevator in Embodiment 1.
  • FIG. FIG. 3 is a cross-sectional view of a main part of a sheave as a pulley for an elevator according to Embodiment 1.
  • the sheave 2a includes a main body 12 and a plurality of detection bodies 13.
  • the body 12 includes a bearing portion 12a, an annular portion 12b, and a plurality of support portions 12c.
  • the bearing portion 12a is formed in an annular shape.
  • the bearing portion 12 a is attached to the rotating shaft of the hoisting machine 2 .
  • the annular portion 12b is annularly formed outside the bearing portion 12a.
  • the annular portion 12b is arranged concentrically with the bearing portion 12a.
  • the annular portion 12 b has a rope groove 14 and an undercut groove 15 .
  • the rope groove 14 is formed endlessly on the outer peripheral surface of the sheave 2a.
  • the undercut groove 15 is formed endlessly at the bottom of the rope groove 14 .
  • the plurality of support portions 12c are formed radially at regular intervals from the bearing portion 12a toward the annular portion 12b.
  • a plurality of support portions 12c support the annular portion 12b.
  • the plurality of detection bodies 13 are made of a material harder than the portion where the rope groove 14 is formed in the annular portion 12b of the main body 12.
  • the plurality of detection bodies 13 are arranged at regular intervals.
  • the plurality of detection bodies 13 are provided at positions supported by the plurality of support portions 12c in the annular portion 12b.
  • a plurality of detection bodies 13 are provided at respective positions closer to the outer circumference of the annular portion 12 b of the main body 12 than the bottom of the undercut groove 15 .
  • the detection body 13 is a pin.
  • the pin is driven into the bottom of the undercut groove 15 from the outer peripheral side of the annular portion 12b of the main body 12.
  • the height of the end face of the pin is set to a preset height from the bottom of the undercut groove 15 .
  • multiple pins are set to have the same height.
  • FIG. 4 is a cross-sectional view of the sheave as the pulley of the elevator according to Embodiment 1, at a position where the detection body is driven.
  • the main rope 3 is wound around the rope groove 14.
  • a gap is formed between the main rope 3 and the detection body 13 inside the undercut groove 15 .
  • FIG. 5 is a cross-sectional view showing the worn state of the rope groove at the position where the detection body is driven into the sheave as the pulley of the elevator according to the first embodiment.
  • FIG. 6 is a cross-sectional view showing the state of wear of the rope groove in the sheave as the pulley of the elevator according to Embodiment 1, at a position where the detection body is not driven.
  • FIG. 5 shows a state where the rope groove 14 is worn and the main rope 3 is in contact with the end face of the detection body 13 .
  • a gap remains between the main rope 3 and the detection body 13 until this state is reached. Therefore, the main rope 3 contacts only the inner surface of the rope groove 14 at the position where the detection body 13 is driven and the position where it is not driven.
  • the rope groove 14 wears equally in the positions where the sensing element 13 is driven and where it is not driven.
  • FIG. 7 is a cross-sectional view showing the state of progress of wear at the position where the detection body is driven into the sheave as the pulley of the elevator according to the first embodiment.
  • FIG. 8 is a cross-sectional view showing the state of progress of wear at a position where the detection body is not driven in the sheave as the pulley of the elevator according to the first embodiment.
  • FIG. 9 is a front view of a main part showing the state of progress of wear of the sheave as the pulley of the elevator in Embodiment 1.
  • the main rope 3 contacts the inner surface of the rope groove 14 and the end face of the detection body 13 at the position where the detection body 13 is driven.
  • the main rope 3 contacts only the inner surface of the rope groove 14 at the position where the detection body 13 is not driven.
  • the rope groove 14 wears differently depending on whether the sensing element 13 is driven or not. Specifically, the rope groove 14 wears less at the location where the sensing element 13 is driven. The rope groove 14 wears more at the position where the sensing element 13 is driven.
  • FIG. 10A and 10B are diagrams for explaining a method for inspecting a sheave as a pulley for an elevator according to Embodiment 1.
  • FIG. 10A and 10B are diagrams for explaining a method for inspecting a sheave as a pulley for an elevator according to Embodiment 1.
  • a vibration detector installation step is performed.
  • the smart phone 16 is installed in the car 5 .
  • the smart phone shown here is limited to one having an acceleration sensor.
  • the smart phone 16 is temporarily installed on the floor of the car 5 .
  • the car lifting process will be performed.
  • the car 5 starts to move up and down.
  • the operation mode of the elevator is switched to the inspection mode, the car 5 starts to move up and down.
  • the rotation of the sheave 2a and the elevation of the car 5 are interlocked.
  • the car vibration detection process is performed.
  • the smart phone 16 detects vibration of the car 5 .
  • the wear state of the rope groove 14 undulates in the circumferential direction
  • the sheave 2a vibrates periodically according to the positions of the plurality of detectors 13. As shown in FIG.
  • the vibration is transmitted to the car 5 via the main rope 3 .
  • the smartphone 16 detects the vibration.
  • the vibration determination process is performed.
  • the smart phone 16 determines vibration of the car 5 .
  • the smartphone 16 determines whether or not the magnitude of periodic vibration of the car 5 is greater than a preset magnitude.
  • the smartphone 16 outputs information corresponding to the determination result of vibration of the car 5 .
  • the smartphone 16 displays or transmits to the outside information indicating that the sheave 2a should be replaced. .
  • the plurality of detection bodies 13 are provided on the outer peripheral side of the main body 12 relative to the bottom of the undercut groove 15 in a part of the interior of the undercut groove 15 . Therefore, by determining the periodic vibration of the car 5, the wear state of the rope groove 14 can be easily determined.
  • the periodic vibration of the car 5 can be determined without wiping off the oil with a solvent. Therefore, the wear state of the rope groove 14 can be determined in a short time.
  • the plurality of detection bodies 13 are harder than the portion of the main body 12 where the rope grooves 14 are formed. For this reason, when the wear of the rope groove 14 progresses, the waviness of the worn state of the rope groove 14 can be increased. As a result, the wear state of the rope groove 14 can be determined more reliably.
  • the hardness of the plurality of detection bodies 13 is preferably such that the main rope 3 is not damaged.
  • the plurality of detection bodies 13 are provided at positions supported by the plurality of support portions 12c in the annular portion of the main body 12, respectively. For this reason, progress of wear of the rope groove 14 can be further retarded at the positions where the plurality of detection bodies 13 are provided. As a result, when the rope groove 14 is worn, the undulation of the worn state of the rope groove 14 can be increased.
  • At least one detection body 13 is sufficient. Also in this case, by determining the periodic vibration of the car 5, the wear state of the rope groove 14 can be easily determined.
  • the detection body 13 may be driven into the side surface of the annular portion 12 b to form a gap between the main rope 3 and the detection body 13 inside the undercut groove 15 . Also in this case, by determining the periodic vibration of the car 5, the wear state of the rope groove 14 can be easily determined.
  • the smartphone 16 is always installed in the car 5 and the application is set to allow remote control, the wear state of the rope groove 14 can be remotely monitored without going to the building where the elevator is installed. be able to.
  • the vibration of the car 5 may be detected by a vibration detector other than the smartphone 16. Even in this case, the wear state of the rope groove 14 can be easily determined.
  • a computer other than the smartphone 16 may be used to determine the vibration of the car 5 and output information. Even in this case, the wear state of the rope groove 14 can be easily determined.
  • At least one detector 13 may be applied to a pulley other than the sheave 2a.
  • at least one sensing element 13 may be applied to the car-side suspension pulley 5a.
  • at least one sensing element 13 may be applied to the weight-side hanger 7a.
  • at least one sensing element 13 may be applied to the weight-side hanger 7a. In these cases as well, the state of wear of the rope groove 14 can be easily determined.
  • the pulley of Embodiment 1 may be applied to an elevator in which the hoisting machine 2 and the control device 11 are provided in the lower part of the hoistway or an elevator in which the hoisting machine 2 and the control device 11 are provided in the machine room.
  • the elevator pulley and pulley inspection method of the present disclosure can be used in an elevator system.

Landscapes

  • Engineering & Computer Science (AREA)
  • Civil Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Cage And Drive Apparatuses For Elevators (AREA)
  • Maintenance And Inspection Apparatuses For Elevators (AREA)

Abstract

Provided is an elevator pulley that enables the wear status of a cable groove to be easily determined. This elevator pulley is provided with: a body having a cable groove around which an elevator cable is wrapped and an undercut groove formed at the bottom of the cable groove; and at least one detection body provided further on the outer peripheral side of the body than the bottom of the undercut groove in at least a portion within the undercut groove. Said pulley enables the wear status of the cable groove to be easily determined.

Description

エレベーターの滑車と滑車の点検方法Elevator pulleys and pulley inspection methods
　本開示は、エレベーターの滑車と滑車の点検方法に関する。 This disclosure relates to an elevator pulley and a pulley inspection method.
　特許文献１は、エレベーターのロープ溝の測定治具を開示する。当該測定治具によれば、ロープ溝の状態を判定し得る。 Patent document 1 discloses a measuring jig for rope grooves of elevators. According to the measuring jig, the condition of the rope groove can be determined.
日本特開２０１３－２５６３４１号公報Japanese Patent Application Laid-Open No. 2013-256341
　しかしながら、特許文献１に記載の測定治具においては、ロープが巻き掛けられていない位置において、ロープ溝の摩耗状態を測定する必要がある。このため、作業しにくい位置においてロープ溝の摩耗状態を判定する必要がある。 However, in the measuring jig described in Patent Document 1, it is necessary to measure the wear state of the rope groove at a position where the rope is not wound. Therefore, it is necessary to determine the state of wear of the rope groove at a position where it is difficult to work.
　本開示は、上述の課題を解決するためになされた。本開示の目的は、ロープ溝の摩耗状態を容易に判定することができるエレベーターの滑車と滑車の点検方法を提供することである。 The present disclosure was made to solve the above problems. SUMMARY OF THE DISCLOSURE It is an object of the present disclosure to provide an elevator pulley and pulley inspection method that can easily determine the wear condition of the rope grooves.
　本開示に係るエレベーターの滑車は、エレベーターのロープが巻き掛けられるロープ溝と前記ロープ溝の底部に形成されたアンダーカット溝とを有した本体と、前記アンダーカット溝の内部の一部において、前記アンダーカット溝の底部よりも前記本体の外周の側に設けられた少なくとも一つの検知体と、を備えた。 An elevator pulley according to the present disclosure includes a main body having a rope groove around which an elevator rope is wound and an undercut groove formed at the bottom of the rope groove; and at least one detector provided closer to the outer periphery of the main body than the bottom of the undercut groove.
　本開示に係るエレベーターの滑車の点検方法は、滑車が用いられたエレベーターのかごに振動検知器を設置する振動検知器設置工程と、前記振動検知器設置工程の後、前記かごの昇降を開始させるかご昇降工程と、前記かご昇降工程の後、前記かごの昇降に追従して前記滑車が回転する状態において、前記振動検知器により前記かごの振動を検知するかご振動検知工程と、を備えた。 An elevator pulley inspection method according to the present disclosure includes a vibration detector installation step of installing a vibration detector in an elevator car using a pulley, and starting up and down of the car after the vibration detector installation step. and a car vibration detection step of detecting vibration of the car with the vibration detector in a state in which the pulley rotates following the car ascent and descent after the car ascent and descent process.
　本開示によれば、検知体は、アンダーカット溝の内部の一部において、アンダーカット溝の底部よりも本体の外周の側に設けられる。このため、ロープ溝１４の摩耗状態を容易に判定することができる。 According to the present disclosure, the detection body is provided closer to the outer circumference of the main body than the bottom of the undercut groove in a part of the interior of the undercut groove. Therefore, the wear state of the rope groove 14 can be easily determined.
実施の形態１におけるエレベーターの滑車が適用されるエレベーターシステムの構成図である。1 is a configuration diagram of an elevator system to which an elevator pulley in Embodiment 1 is applied; FIG. 実施の形態１におけるエレベーターの滑車としての綱車の正面図である。1 is a front view of a sheave as a pulley of an elevator in Embodiment 1. FIG. 実施の形態１におけるエレベーターの滑車としての綱車の要部の断面図である。2 is a cross-sectional view of a main part of a sheave as a pulley of an elevator in Embodiment 1. FIG. 実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれた位置での断面図である。FIG. 4 is a cross-sectional view of the sheave as the pulley of the elevator in Embodiment 1 at a position where a detection body is driven; 実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれた位置でのロープ溝の摩耗状態を示す断面図である。FIG. 4 is a cross-sectional view showing a worn state of a rope groove at a position where a detection body is driven into a sheave as a pulley of an elevator according to Embodiment 1; 実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれていない位置でのロープ溝の摩耗状態を示す断面図である。FIG. 4 is a cross-sectional view showing a worn state of a rope groove at a position where a detection body is not driven in the sheave as the pulley of the elevator according to Embodiment 1; 実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれた位置での摩耗の進行状態を示す断面図である。FIG. 4 is a cross-sectional view showing the state of progress of wear at the position where the detection body is driven into the sheave as the pulley of the elevator according to Embodiment 1; 実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれていない位置での摩耗の進行状態を示す断面図である。FIG. 4 is a cross-sectional view showing the state of progress of wear at a position where the detection body is not driven in the sheave as the pulley of the elevator according to Embodiment 1; 実施の形態１におけるエレベーターの滑車としての綱車の摩耗の進行状態を示す要部の正面図である。FIG. 4 is a front view of a main part showing the state of progress of wear of a sheave as a pulley of the elevator in Embodiment 1; 実施の形態１におけるエレベーターの滑車としての綱車の点検方法を説明するための図である。FIG. 4 is a diagram for explaining a method for inspecting a sheave as a pulley of an elevator according to Embodiment 1;
　実施の形態について添付の図面に従って説明する。なお、各図中、同一または相当する部分には同一の符号が付される。当該部分の重複説明は適宜に簡略化ないし省略される。 An embodiment will be described according to the attached drawings. In addition, the same code|symbol is attached|subjected to the part which is the same or corresponds in each figure. Redundant description of the relevant part will be simplified or omitted as appropriate.
実施の形態１．
　図１は実施の形態１におけるエレベーターの滑車が適用されるエレベーターシステムの構成図である。 Embodiment 1.
FIG. 1 is a configuration diagram of an elevator system to which an elevator pulley in Embodiment 1 is applied.
　図１のエレベーターシステムにおいて、昇降路１は、図示されない建築物の各階を貫く。巻上機２は、昇降路１の上部に設けられる。巻上機２は、滑車としての綱車２ａを備える。主ロープ３は、綱車２ａに巻き掛けられる。 In the elevator system of Fig. 1, the hoistway 1 runs through each floor of the building (not shown). The hoist 2 is provided above the hoistway 1 . The hoist 2 includes a sheave 2a as a pulley. The main rope 3 is wound around the sheave 2a.
　一対のかご側ガイドレール４は、昇降路１の内部に設けられる。一対のかご側ガイドレール４の各々の長手方向は、鉛直方向である。かご５は、昇降路１の内部に設けられる。かご５は、滑車としての一対のかご側吊り車５ａを介して下方から主ロープ３の一側に支持される。かご５は、一対のかご側ガイドレール４に鉛直方向に案内される。 A pair of car-side guide rails 4 are provided inside the hoistway 1. The longitudinal direction of each of the pair of car-side guide rails 4 is the vertical direction. The car 5 is provided inside the hoistway 1 . The car 5 is supported on one side of the main rope 3 from below via a pair of car-side suspension wheels 5a as pulleys. The car 5 is guided vertically by a pair of car-side guide rails 4 .
　一対のおもり側ガイドレール６は、昇降路１の内部に設けられる。一対のおもり側ガイドレール６の各々の長手方向は、鉛直方向である。つり合いおもり７は、昇降路１の内部に設けられる。つり合いおもり７の上部は、滑車としてのおもり側吊り車７ａを介して主ロープ３の他側に支持される。つり合いおもり７は、一対のおもり側ガイドレール６に鉛直方向に案内される。 A pair of weight-side guide rails 6 are provided inside the hoistway 1 . The longitudinal direction of each of the pair of weight-side guide rails 6 is the vertical direction. A counterweight 7 is provided inside the hoistway 1 . The upper part of the counterweight 7 is supported on the other side of the main rope 3 via a weight-side suspension wheel 7a as a pulley. A counterweight 7 is guided vertically by a pair of weight-side guide rails 6 .
　ガバナ８は、滑車として昇降路１の上部に設けられる。張り車９は、滑車として昇降路１の下部に設けられる。ガバナロープ１０は、無端状に設けられる。ガバナロープ１０は、ガバナ８と張り車９とに巻き掛けられる。 The governor 8 is provided above the hoistway 1 as a pulley. A tension pulley 9 is provided in the lower part of the hoistway 1 as a pulley. The governor rope 10 is provided endlessly. A governor rope 10 is wound around a governor 8 and a tension wheel 9. - 特許庁
　制御装置１１は、昇降路１の上部に設けられる。制御装置１１は、エレベーターを全体的に制御し得るように設けられる。 The control device 11 is provided above the hoistway 1. A controller 11 is provided to control the elevator as a whole.
　図１のエレベーターにおいて、制御装置１１は、巻上機２を回転させる。綱車２ａは、巻上機２の回転に追従して回転する。主ロープ３は、綱車２ａの回転に追従して移動する。かご５とつり合いおもり７とは、主ロープ３の移動に追従して互いに反対方向に昇降する。この際、ガバナロープ１０は、かご５の昇降に追従して移動する。ガバナ８は、ガバナロープ１０の移動に追従して回転する。制御装置１１は、ガバナ８の回転速度に基づいてかご５の鉛直方向の位置を認識する。 In the elevator of FIG. 1, the control device 11 rotates the hoist 2. The sheave 2 a rotates following the rotation of the hoist 2 . The main rope 3 moves following the rotation of the sheave 2a. The car 5 and the counterweight 7 follow the movement of the main rope 3 and move up and down in opposite directions. At this time, the governor rope 10 moves following the elevation of the car 5 . The governor 8 rotates following the movement of the governor rope 10 . The control device 11 recognizes the vertical position of the car 5 based on the rotational speed of the governor 8 .
　次に、図２と図３とを用いて、綱車２ａを説明する。
　図２は実施の形態１におけるエレベーターの滑車としての綱車の正面図である。図３は実施の形態１におけるエレベーターの滑車としての綱車の要部の断面図である。 Next, the sheave 2a will be described with reference to FIGS. 2 and 3. FIG.
FIG. 2 is a front view of a sheave as a pulley of the elevator in Embodiment 1. FIG. FIG. 3 is a cross-sectional view of a main part of a sheave as a pulley for an elevator according to Embodiment 1. FIG.
　図２に示されるように、綱車２ａは、本体１２と複数の検知体１３とを備える。 As shown in FIG. 2, the sheave 2a includes a main body 12 and a plurality of detection bodies 13.
　本体１２は、軸受部１２ａと環状部１２ｂと複数の支持部１２ｃとを備える。 The body 12 includes a bearing portion 12a, an annular portion 12b, and a plurality of support portions 12c.
　軸受部１２ａは、環状に形成される。軸受部１２ａは、巻上機２の回転軸に取付けられる。 The bearing portion 12a is formed in an annular shape. The bearing portion 12 a is attached to the rotating shaft of the hoisting machine 2 .
　環状部１２ｂは、軸受部１２ａの外側において環状に形成される。環状部１２ｂは、軸受部１２ａの同心円上に配置される。環状部１２ｂは、ロープ溝１４とアンダーカット溝１５とを有する。ロープ溝１４は、綱車２ａの外周面において無端状に形成される。アンダーカット溝１５は、ロープ溝１４の底部において無端状に形成される。 The annular portion 12b is annularly formed outside the bearing portion 12a. The annular portion 12b is arranged concentrically with the bearing portion 12a. The annular portion 12 b has a rope groove 14 and an undercut groove 15 . The rope groove 14 is formed endlessly on the outer peripheral surface of the sheave 2a. The undercut groove 15 is formed endlessly at the bottom of the rope groove 14 .
　複数の支持部１２ｃは、軸受部１２ａから環状部１２ｂに向かって放射状に等間隔で形成される。複数の支持部１２ｃは、環状部１２ｂを支持する。 The plurality of support portions 12c are formed radially at regular intervals from the bearing portion 12a toward the annular portion 12b. A plurality of support portions 12c support the annular portion 12b.
　複数の検知体１３は、本体１２の環状部１２ｂにロープ溝１４が形成された部分よりも硬い材料で形成される。複数の検知体１３は、等間隔で配置される。複数の検知体１３は、環状部１２ｂにおいて複数の支持部１２ｃに支持された位置にそれぞれ設けられる。複数の検知体１３は、それぞれの位置においてアンダーカット溝１５の底部よりも本体１２の環状部１２ｂの外周の側に設けられる。 The plurality of detection bodies 13 are made of a material harder than the portion where the rope groove 14 is formed in the annular portion 12b of the main body 12. The plurality of detection bodies 13 are arranged at regular intervals. The plurality of detection bodies 13 are provided at positions supported by the plurality of support portions 12c in the annular portion 12b. A plurality of detection bodies 13 are provided at respective positions closer to the outer circumference of the annular portion 12 b of the main body 12 than the bottom of the undercut groove 15 .
　例えば、図３に示されるように、検知体１３は、ピンである。当該ピンは、本体１２の環状部１２ｂの外周の側からアンダーカット溝１５の底部に打ち込まれる。この際、当該ピンの端面の高さは、アンダーカット溝１５の底部から予め設定された高さに設定される。例えば、複数のピンが同じ高さになるように設定される。 For example, as shown in FIG. 3, the detection body 13 is a pin. The pin is driven into the bottom of the undercut groove 15 from the outer peripheral side of the annular portion 12b of the main body 12. As shown in FIG. At this time, the height of the end face of the pin is set to a preset height from the bottom of the undercut groove 15 . For example, multiple pins are set to have the same height.
　次に、図４を用いて、綱車２ａと主ロープ３との位置関係を説明する。
　図４は実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれた位置での断面図である。 Next, the positional relationship between the sheave 2a and the main rope 3 will be described with reference to FIG.
FIG. 4 is a cross-sectional view of the sheave as the pulley of the elevator according to Embodiment 1, at a position where the detection body is driven.
　図４に示されるように、主ロープ３は、ロープ溝１４に巻き掛けられる。ロープ溝１４の摩耗が進行していない場合、アンダーカット溝１５の内部において、主ロープ３と検知体１３との間には、隙間が形成される。 As shown in FIG. 4, the main rope 3 is wound around the rope groove 14. When the rope groove 14 is not worn, a gap is formed between the main rope 3 and the detection body 13 inside the undercut groove 15 .
　次に、図５と図６とを用いて、ロープ溝１４の摩耗状態を説明する。
　図５は実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれた位置でのロープ溝の摩耗状態を示す断面図である。図６は実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれていない位置でのロープ溝の摩耗状態を示す断面図である。 Next, the state of wear of the rope groove 14 will be described with reference to FIGS. 5 and 6. FIG.
FIG. 5 is a cross-sectional view showing the worn state of the rope groove at the position where the detection body is driven into the sheave as the pulley of the elevator according to the first embodiment. FIG. 6 is a cross-sectional view showing the state of wear of the rope groove in the sheave as the pulley of the elevator according to Embodiment 1, at a position where the detection body is not driven.
　図５は、ロープ溝１４の摩耗が進行して主ロープ３が検知体１３の端面に接触した状態を示す。この状態になるまで、主ロープ３と検知体１３との間には、隙間が残る。このため、主ロープ３は、検知体１３が打ち込まれている位置と打ち込まれていない位置とにおいてロープ溝１４の内面にのみ接触する。その結果、図５と図６とに示されるように、ロープ溝１４は、検知体１３が打ち込まれている位置と打ち込まれていない位置とにおいて同等に摩耗する。 FIG. 5 shows a state where the rope groove 14 is worn and the main rope 3 is in contact with the end face of the detection body 13 . A gap remains between the main rope 3 and the detection body 13 until this state is reached. Therefore, the main rope 3 contacts only the inner surface of the rope groove 14 at the position where the detection body 13 is driven and the position where it is not driven. As a result, as shown in FIGS. 5 and 6, the rope groove 14 wears equally in the positions where the sensing element 13 is driven and where it is not driven.
　次に、図７から図９を用いて、ロープ溝１４の摩耗の進行状態を説明する。
　図７は実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれた位置での摩耗の進行状態を示す断面図である。図８は実施の形態１におけるエレベーターの滑車としての綱車において検知体が打ち込まれていない位置での摩耗の進行状態を示す断面図である。図９は実施の形態１におけるエレベーターの滑車としての綱車の摩耗の進行状態を示す要部の正面図である。 Next, the progress of wear of the rope groove 14 will be described with reference to FIGS. 7 to 9. FIG.
FIG. 7 is a cross-sectional view showing the state of progress of wear at the position where the detection body is driven into the sheave as the pulley of the elevator according to the first embodiment. FIG. 8 is a cross-sectional view showing the state of progress of wear at a position where the detection body is not driven in the sheave as the pulley of the elevator according to the first embodiment. FIG. 9 is a front view of a main part showing the state of progress of wear of the sheave as the pulley of the elevator in Embodiment 1. FIG.
　図７に示されるように、ロープ溝１４の摩耗が進行した場合、検知体１３が打ち込まれている位置において、主ロープ３は、ロープ溝１４の内面と検知体１３の端面とに接触する。これに対し、図８に示されるように、検知体１３が打ち込まれていない位置において、主ロープ３は、ロープ溝１４の内面にのみ接触する。その結果、図７と図８とに示されるように、ロープ溝１４は、検知体１３が打ち込まれている位置と打ち込まれていない位置とにおいて異なる状態で摩耗する。具体的には、ロープ溝１４は、検知体１３が打ち込まれている位置においてより少なく摩耗する。ロープ溝１４は、検知体１３が打ち込まれている位置においてより多く摩耗する。 As shown in FIG. 7, when the wear of the rope groove 14 progresses, the main rope 3 contacts the inner surface of the rope groove 14 and the end face of the detection body 13 at the position where the detection body 13 is driven. On the other hand, as shown in FIG. 8, the main rope 3 contacts only the inner surface of the rope groove 14 at the position where the detection body 13 is not driven. As a result, as shown in FIGS. 7 and 8, the rope groove 14 wears differently depending on whether the sensing element 13 is driven or not. Specifically, the rope groove 14 wears less at the location where the sensing element 13 is driven. The rope groove 14 wears more at the position where the sensing element 13 is driven.
　このように、ロープ溝１４の摩耗が進行する結果、図９に示されるように、ロープ溝１４の摩耗状態は、円周方向にうねる。 As a result of the progression of wear of the rope groove 14 in this manner, the wear state of the rope groove 14 undulates in the circumferential direction, as shown in FIG.
　次に、図１０を用いて、綱車２ａの点検方法を説明する。
　図１０は実施の形態１におけるエレベーターの滑車としての綱車の点検方法を説明するための図である。 Next, a method for inspecting the sheave 2a will be described with reference to FIG.
10A and 10B are diagrams for explaining a method for inspecting a sheave as a pulley for an elevator according to Embodiment 1. FIG.
　図１０に示されるように、綱車２ａの点検の開始時において、振動検知器設置工程が行われる。振動検知器設定工程においては、スマートフォン１６がかご５に設置される。（ここで示すスマートフォンは、加速度センサを備えたものに限る。）例えば、スマートフォン１６がかご５の床に一時的に設置される。 As shown in FIG. 10, at the start of inspection of the sheave 2a, a vibration detector installation step is performed. In the vibration detector setting process, the smart phone 16 is installed in the car 5 . (The smart phone shown here is limited to one having an acceleration sensor.) For example, the smart phone 16 is temporarily installed on the floor of the car 5 .
　その後、かご昇降工程が行われる。かご昇降工程において、かご５の昇降が開始される。例えば、エレベーターの運転モードが点検モードに切り替えられた後、かご５の昇降が開始される。この際、綱車２ａの回転とかご５の昇降とは連動する。 After that, the car lifting process will be performed. In the car lifting process, the car 5 starts to move up and down. For example, after the operation mode of the elevator is switched to the inspection mode, the car 5 starts to move up and down. At this time, the rotation of the sheave 2a and the elevation of the car 5 are interlocked.
　その後、かご振動検知工程が行われる。かご振動検知工程においては、スマートフォン１６がかご５の振動を検知する。ロープ溝１４の摩耗状態が円周方向にうねっている場合、綱車２ａの振動は、複数の検知体１３の位置に応じて周期的な振動となる。当該振動は、主ロープ３を介してかご５に伝わる。スマートフォン１６は、当該振動を検知する。 After that, the car vibration detection process is performed. In the car vibration detection process, the smart phone 16 detects vibration of the car 5 . When the wear state of the rope groove 14 undulates in the circumferential direction, the sheave 2a vibrates periodically according to the positions of the plurality of detectors 13. As shown in FIG. The vibration is transmitted to the car 5 via the main rope 3 . The smartphone 16 detects the vibration.
　その後、振動判定工程が行われる。振動判定工程においては、スマートフォン１６がかご５の振動を判定する。例えば、スマートフォン１６は、かご５の周期的な振動の大きさが予め設定された大きさよりも大きいか否かを判定する。 After that, the vibration determination process is performed. In the vibration determination process, the smart phone 16 determines vibration of the car 5 . For example, the smartphone 16 determines whether or not the magnitude of periodic vibration of the car 5 is greater than a preset magnitude.
　その後、情報出力工程が行われる。情報出力工程においては、スマートフォン１６がかご５の振動の判定結果に対応した情報を出力する。例えば、かご５の周期的な振動の大きさが予め設定された大きさよりも大きい場合、スマートフォン１６は、綱車２ａを交換するべきであることを示す情報を表示したり外部へ送信したりする。 After that, the information output process is performed. In the information output step, the smartphone 16 outputs information corresponding to the determination result of vibration of the car 5 . For example, when the magnitude of periodic vibration of the car 5 is greater than a preset magnitude, the smartphone 16 displays or transmits to the outside information indicating that the sheave 2a should be replaced. .
　以上で説明した実施の形態１によれば、複数の検知体１３は、アンダーカット溝１５の内部の一部において、アンダーカット溝１５の底部よりも本体１２の外周の側に設けられる。このため、かご５の周期的な振動を判定することで、ロープ溝１４の摩耗状態を容易に判定することができる。 According to Embodiment 1 described above, the plurality of detection bodies 13 are provided on the outer peripheral side of the main body 12 relative to the bottom of the undercut groove 15 in a part of the interior of the undercut groove 15 . Therefore, by determining the periodic vibration of the car 5, the wear state of the rope groove 14 can be easily determined.
　この際、ロープ溝１４から染み出した油がロープ溝周辺に固着しても、溶剤で当該油を拭き取ることなく、かご５の周期的な振動を判定することができる。このため、ロープ溝１４の摩耗状態を短時間で判定することができる。 At this time, even if the oil seeping out from the rope groove 14 adheres to the periphery of the rope groove, the periodic vibration of the car 5 can be determined without wiping off the oil with a solvent. Therefore, the wear state of the rope groove 14 can be determined in a short time.
　また、複数の検知体１３は、本体１２においてロープ溝１４が形成された部分よりも硬い。このため、ロープ溝１４の摩耗が進行した際のロープ溝１４の摩耗状態のうねりをより大きくすることができる。その結果、ロープ溝１４の摩耗状態をより確実に判定することができる。 Also, the plurality of detection bodies 13 are harder than the portion of the main body 12 where the rope grooves 14 are formed. For this reason, when the wear of the rope groove 14 progresses, the waviness of the worn state of the rope groove 14 can be increased. As a result, the wear state of the rope groove 14 can be determined more reliably.
　なお、複数の検知体１３の硬さは、主ロープ３を傷つけない程度の硬さであることが好ましい。 It should be noted that the hardness of the plurality of detection bodies 13 is preferably such that the main rope 3 is not damaged.
　また、複数の検知体１３は、本体１２の環状部において複数の支持部１２ｃに支持された位置にそれぞれ設けられる。このため、複数の検知体１３が設けられた位置において、ロープ溝１４の摩耗の進行をより遅らせることができる。その結果、ロープ溝１４の摩耗が進行した際のロープ溝１４の摩耗状態のうねりをより大きくすることができる。 Further, the plurality of detection bodies 13 are provided at positions supported by the plurality of support portions 12c in the annular portion of the main body 12, respectively. For this reason, progress of wear of the rope groove 14 can be further retarded at the positions where the plurality of detection bodies 13 are provided. As a result, when the rope groove 14 is worn, the undulation of the worn state of the rope groove 14 can be increased.
　なお、検知体１３は、少なくとも一つあればよい。この場合も、かご５の周期的な振動を判定することで、ロープ溝１４の摩耗状態を容易に判定することができる。 It should be noted that at least one detection body 13 is sufficient. Also in this case, by determining the periodic vibration of the car 5, the wear state of the rope groove 14 can be easily determined.
　また、環状部１２ｂの側面から検知体１３を打ち込んで、アンダーカット溝１５の内部において、主ロープ３と検知体１３との間に隙間を形成してもよい。この場合も、かご５の周期的な振動を判定することで、ロープ溝１４の摩耗状態を容易に判定することができる。 Alternatively, the detection body 13 may be driven into the side surface of the annular portion 12 b to form a gap between the main rope 3 and the detection body 13 inside the undercut groove 15 . Also in this case, by determining the periodic vibration of the car 5, the wear state of the rope groove 14 can be easily determined.
　また、かご５の振動の検知、かご５の振動の判定、情報の出力についての一連の動作を行うためのアプリケーションをスマートフォン１６にインストールしておけば、ロープ溝１４の摩耗状態をより容易に判定することができる。 In addition, if an application for performing a series of operations for detecting vibration of the car 5, judging the vibration of the car 5, and outputting information is installed on the smartphone 16, the wear state of the rope groove 14 can be judged more easily. can do.
　この際、スマートフォン１６をかご５に常時設置し、当該アプリケーションにおいて遠隔操作を許可する設定がなされていれば、エレベーターが設置された建築物に出向くことなく、ロープ溝１４の摩耗状態を遠隔監視することができる。 At this time, if the smartphone 16 is always installed in the car 5 and the application is set to allow remote control, the wear state of the rope groove 14 can be remotely monitored without going to the building where the elevator is installed. be able to.
　また、スマートフォン１６以外の振動検知器でかご５の振動を検知してもよい。この場合でも、ロープ溝１４の摩耗状態を容易に判定することができる。 Also, the vibration of the car 5 may be detected by a vibration detector other than the smartphone 16. Even in this case, the wear state of the rope groove 14 can be easily determined.
　また、スマートフォン１６以外の計算機によりかご５の振動を判定したり情報を出力したりしてもよい。この場合でも、ロープ溝１４の摩耗状態を容易に判定することができる。 Further, a computer other than the smartphone 16 may be used to determine the vibration of the car 5 and output information. Even in this case, the wear state of the rope groove 14 can be easily determined.
　また、少なくとも一つの検知体１３を綱車２ａ以外の滑車に適用してもよい。例えば、少なくとも一つの検知体１３をかご側吊り車５ａに適用してもよい。例えば、少なくとも一つの検知体１３をおもり側吊り車７ａに適用してもよい。例えば、少なくとも一つの検知体１３をおもり側吊り車７ａに適用してもよい。これらの場合も、ロープ溝１４の摩耗状態を容易に判定することができる。 Also, at least one detector 13 may be applied to a pulley other than the sheave 2a. For example, at least one sensing element 13 may be applied to the car-side suspension pulley 5a. For example, at least one sensing element 13 may be applied to the weight-side hanger 7a. For example, at least one sensing element 13 may be applied to the weight-side hanger 7a. In these cases as well, the state of wear of the rope groove 14 can be easily determined.
　また、昇降路の下部に巻上機２、制御装置１１が設けられるエレベーターまたは機械室に巻上機２、制御装置１１が設けられるエレベーターに対し、実施の形態１の滑車を適用してよい。 Further, the pulley of Embodiment 1 may be applied to an elevator in which the hoisting machine 2 and the control device 11 are provided in the lower part of the hoistway or an elevator in which the hoisting machine 2 and the control device 11 are provided in the machine room.
　以上のように、本開示のエレベーターの滑車と滑車の点検方法は、エレベーターシステムに利用できる。 As described above, the elevator pulley and pulley inspection method of the present disclosure can be used in an elevator system.
　１　昇降路、　２　巻上機、　２ａ　綱車、　３　主ロープ、　４　かご側ガイドレール、　５　かご、　５ａ　かご側吊り車、　６　おもり側ガイドレール、　７　つり合いおもり、　７ａ　おもり側吊り車、　８　ガバナ、　９　張り車、　１０　ガバナロープ、　１１　制御装置、　１２　本体、　１２ａ　軸受部、　１２ｂ　環状部、　１２ｃ　支持部、　１３　検知体、　１４　ロープ溝、　１５　アンダーカット溝、　１６　スマートフォン 1 hoistway, 2 hoisting machine, 2a sheave, 3 main rope, 4 car side guide rail, 5 car, 5a car side hoisting wheel, 6 weight side guide rail, 7 counterweight, 7a weight side hoisting wheel, 8 governor , 9 Tension wheel, 10 Governor rope, 11 Control device, 12 Main body, 12a Bearing part, 12b Annular part, 12c Support part, 13 Detector, 14 Rope groove, 15 Undercut groove, 16 Smartphone

Claims (5)

  1. 　エレベーターのロープが巻き掛けられるロープ溝と前記ロープ溝の底部に形成されたアンダーカット溝とを有した本体と、
    　前記アンダーカット溝の内部の一部において、前記アンダーカット溝の底部よりも前記本体の外周の側に設けられた少なくとも一つの検知体と、
    を備えたエレベーターの滑車。     a main body having a rope groove around which an elevator rope is wound and an undercut groove formed at the bottom of the rope groove;
    at least one sensing element provided closer to the outer periphery of the main body than the bottom of the undercut groove in a part of the interior of the undercut groove;
    Elevator pulley with
  2. 　前記少なくとも一つの検知体は、前記本体において前記ロープ溝が形成された部分よりも硬い請求項１に記載のエレベーターの滑車。 The elevator pulley according to claim 1, wherein the at least one detection body is harder than the portion of the main body where the rope groove is formed.
  3. 　前記本体は、
    　回転軸に取付けられた軸受部と、
    　前記軸受部の外側において環状に形成され、前記ロープ溝と前記アンダーカット溝とを有した環状部と、
    　前記軸受部から前記環状部に向かって放射状に形成され、前記環状部を支持する複数の支持部と、
    を備え、
    　複数の検知体は、前記環状部において前記複数の支持部に支持された位置にそれぞれ設けられた請求項１または請求項２に記載のエレベーターの滑車。     The body is
    a bearing attached to the rotating shaft;
    an annular portion formed annularly outside the bearing portion and having the rope groove and the undercut groove;
    a plurality of support portions radially formed from the bearing portion toward the annular portion and supporting the annular portion;
    with
    3. The elevator pulley according to claim 1, wherein a plurality of detection bodies are provided at positions supported by the plurality of support portions in the annular portion.
  4. 　請求項１から請求項３のいずれか一項に記載の滑車が用いられたエレベーターのかごに振動検知器を設置する振動検知器設置工程と、
    　前記振動検知器設置工程の後、前記かごの昇降を開始させるかご昇降工程と、
    　前記かご昇降工程の後、前記滑車の回転と前記かごの昇降とが連動する状態において、前記振動検知器により前記かごの振動を検知するかご振動検知工程と、
    を備えたエレベーターの滑車の点検方法。     A vibration detector installation step of installing a vibration detector in an elevator car using the pulley according to any one of claims 1 to 3;
    After the vibration detector installation step, a car lifting step for starting the lifting and lowering of the car;
    a car vibration detection step of detecting vibration of the car with the vibration detector in a state in which the rotation of the pulley and the lifting and lowering of the car are interlocked after the car lifting step;
    Elevator pulley inspection method.
  5. 　前記かご振動検知工程の後、計算機により前記かご振動検知工程において検知された周期的な振動の大きさが予め設定された大きさよりも大きいか否かを判定する振動判定工程と、
    　前記振動判定工程において前記かご振動検知工程において検知された周期的な振動の大きさが予め設定された大きさよりも大きいと判定された場合に前記計算機から判定結果に対応した情報を出力する情報出力工程と、
    を備えた請求項４にエレベーターの滑車の点検方法。     a vibration determination step of determining, after the car vibration detection step, whether or not the magnitude of the periodic vibration detected in the car vibration detection step is larger than a preset magnitude by a computer;
    Information output for outputting information corresponding to the determination result from the computer when it is determined in the vibration determination step that the magnitude of the periodic vibration detected in the car vibration detection step is larger than a preset magnitude. process and
    5. A method for inspecting an elevator pulley according to claim 4, comprising:
PCT/JP2021/009265 2021-03-09 2021-03-09 Elevator pulley and pulley inspection method WO2022190205A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
PCT/JP2021/009265 WO2022190205A1 (en) 2021-03-09 2021-03-09 Elevator pulley and pulley inspection method
CN202180095374.4A CN117062768A (en) 2021-03-09 2021-03-09 Elevator sheave and sheave inspection method
JP2023504917A JP7444330B2 (en) 2021-03-09 2021-03-09 How to inspect elevator pulleys and pulleys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/009265 WO2022190205A1 (en) 2021-03-09 2021-03-09 Elevator pulley and pulley inspection method

Publications (1)

Publication Number Publication Date
WO2022190205A1 true WO2022190205A1 (en) 2022-09-15

Family

ID=83226420

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2021/009265 WO2022190205A1 (en) 2021-03-09 2021-03-09 Elevator pulley and pulley inspection method

Country Status (3)

Country Link
JP (1) JP7444330B2 (en)
CN (1) CN117062768A (en)
WO (1) WO2022190205A1 (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137285A (en) * 1981-02-17 1982-08-24 Mitsubishi Electric Corp Hoisting device for elevator
US20120318615A1 (en) * 2010-03-11 2012-12-20 Kone Corporation Method for manufacturing or modernizing a traction sheave elevator, and traction sheave elevator
WO2020213090A1 (en) * 2019-04-17 2020-10-22 三菱電機株式会社 Elevator device and method of diagnosing wear of pulley thereof

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5346864B2 (en) * 2010-04-02 2013-11-20 株式会社日立ビルシステム Elevator sheave wear diagnostic device
JP6776166B2 (en) * 2017-03-29 2020-10-28 株式会社日立産機システム Method for detecting wear of wire rope grooves in electric hoisting machine and electric hoisting machine
WO2020039586A1 (en) * 2018-08-24 2020-02-27 三菱電機株式会社 Wear detection device and elevator hoist

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57137285A (en) * 1981-02-17 1982-08-24 Mitsubishi Electric Corp Hoisting device for elevator
US20120318615A1 (en) * 2010-03-11 2012-12-20 Kone Corporation Method for manufacturing or modernizing a traction sheave elevator, and traction sheave elevator
WO2020213090A1 (en) * 2019-04-17 2020-10-22 三菱電機株式会社 Elevator device and method of diagnosing wear of pulley thereof

Also Published As

Publication number Publication date
JP7444330B2 (en) 2024-03-06
CN117062768A (en) 2023-11-14
JPWO2022190205A1 (en) 2022-09-15

Similar Documents

Publication Publication Date Title
JP4855416B2 (en) Elevator control device
JP5050362B2 (en) elevator
US7637357B2 (en) Elevator apparatus with sheave rotational speed difference determination for detecting an abnormality
WO2010067435A1 (en) Elevator apparatus
JP2007230731A (en) Abnormality detection device of elevator
CN101098822A (en) Elevator apparatus
JP5904072B2 (en) Elevator apparatus and elevator control method
JP2010275078A (en) Elevator control device
US5886308A (en) Rope speed monitoring assembly and method
JP2017013924A (en) Speed detection device for elevator, and elevator
JP2017128427A (en) Wear detection device and elevator
JP5334868B2 (en) Elevator equipment
WO2022190205A1 (en) Elevator pulley and pulley inspection method
JP2008156127A (en) Elevator
JP4862296B2 (en) Elevator inspection method
CN103303757B (en) Elevator drive rope sheave wear detector and method
CN114026434A (en) Device for measuring the rotational speed of a component of an elevator, escalator, moving walkway or moving ramp and method for monitoring
JP5074917B2 (en) Elevator emergency stop inspection device and emergency stop inspection method
WO2019229890A1 (en) Groove wear detection device
JP5875505B2 (en) Elevator rope strand break detection device and rope strand break detection method
JP6960885B2 (en) How to stop the compensating train automatic stop
KR100697487B1 (en) Elevator equipment
JP2006240819A (en) Multi-car elevator device
JP2017061369A (en) Malfunction detection method for elevator equipment
JP2014162621A (en) Main rope inspection device of elevator

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: 21930062

Country of ref document: EP

Kind code of ref document: A1

ENP Entry into the national phase

Ref document number: 2023504917

Country of ref document: JP

Kind code of ref document: A

WWE Wipo information: entry into national phase

Ref document number: 202180095374.4

Country of ref document: CN

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 21930062

Country of ref document: EP

Kind code of ref document: A1