WO2022118494A1 - Dispositif d'inspection de câble métallique et système d'inspection de câble métallique - Google Patents

Dispositif d'inspection de câble métallique et système d'inspection de câble métallique Download PDF

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Publication number
WO2022118494A1
WO2022118494A1 PCT/JP2021/026501 JP2021026501W WO2022118494A1 WO 2022118494 A1 WO2022118494 A1 WO 2022118494A1 JP 2021026501 W JP2021026501 W JP 2021026501W WO 2022118494 A1 WO2022118494 A1 WO 2022118494A1
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WIPO (PCT)
Prior art keywords
wire rope
detection
pop
detection coil
unit
Prior art date
Application number
PCT/JP2021/026501
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English (en)
Japanese (ja)
Inventor
肇 武本
Original Assignee
株式会社島津製作所
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Application filed by 株式会社島津製作所 filed Critical 株式会社島津製作所
Priority to JP2022566787A priority Critical patent/JP7448037B2/ja
Priority to PCT/JP2021/040084 priority patent/WO2022118582A1/fr
Publication of WO2022118494A1 publication Critical patent/WO2022118494A1/fr

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    • 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
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/72—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables
    • G01N27/82—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating magnetic variables for investigating the presence of flaws

Definitions

  • the present invention relates to a wire rope inspection device and a wire rope inspection system.
  • a wire rope inspection device that detects a change in the magnetic flux of a wire rope by a detection coil is known.
  • Such a wire rope inspection device is disclosed in, for example, International Publication No. 2019/171667.
  • the International Publication No. 2019/171667 includes a wire rope inspection device (magnetic material inspection) including an exciting portion provided for the wire rope (magnetic material) and a detection coil for detecting the magnetic flux (magnetic field) of the wire rope. Device) is disclosed.
  • the wire rope inspection device according to International Publication No. 2019/171667 is configured to detect a change in the magnetic flux of the wire rope caused by the application of the magnetic flux by the exciting portion by the detection coil.
  • the detection coil and the wire rope are used in order to prevent the wire rope from vibrating and coming into contact with the detection coil.
  • the distance between them is configured to be greater than the maximum vibration swing width of the wire rope.
  • it is desirable that the distance between the detection coil and the wire rope is as small as possible. That is, in the wire rope inspection device as described in International Publication No. 2019/171667, the distance between the detection coil and the wire rope is larger than the maximum vibration swing width of the wire rope and is possible. It is desirable that it be configured to be as small as possible.
  • a wire rope inspection device capable of suppressing contact between the portion protruding from the wire rope to be inspected and the detection coil while accurately inspecting the wire rope by bringing the detection coil close to the wire rope, and wire rope inspection.
  • the present invention has been made to solve the above-mentioned problems, and one object of the present invention is to inspect the wire rope accurately while bringing the detection coil close to the wire rope to be inspected. It is an object of the present invention to provide a wire rope inspection device capable of suppressing contact between a protruding portion and a detection coil, and a wire rope inspection system.
  • the wire rope inspection apparatus includes an exciting part that applies a magnetic field to the wire rope to be inspected and a wire rope to which a magnetic field is applied by the exciting part.
  • the pop-out detection unit Based on the detection coil that detects the magnetic flux of the wire rope while moving relatively, the pop-out detection unit that detects the pop-out portion from at least a part of the outer surface of the wire rope, and the detection signal from the pop-out detection unit. It is provided with a drive unit for moving the detection coil in a direction away from the wire rope before the protruding portion comes into contact with the detection coil.
  • the "protruding portion” means a twisted, broken, kink, or kink of the wire rope, in addition to the portion where the wire broken due to the wire break of the wire rope protrudes from the outer surface of the wire rope. It is a concept that includes a part of the outer surface where the cross-sectional area of the wire rope is larger than the normal state due to a defect (abnormality) such as a cage-like shape loss. Further, in the present specification, the “protruding portion” includes not only the defect of the wire as described above but also the increase in the cross-sectional area of the wire rope due to foreign matter or grease adhering to the outer surface of the wire rope. It is described as a broad concept. Further, "contacting with the detection coil” is a concept including contacting with the housing (detection coil main body portion) of the detection coil in which the detection coil is arranged, in addition to contact with the detection coil itself.
  • the exciting portion that applies a magnetic field to the wire rope to be inspected and the wire rope to which the magnetic field is applied by the exciting portion move relative to each other.
  • the protrusion contacts the detection coil based on the detection coil that detects the magnetic flux of the wire rope, the protrusion detection unit that detects the protrusion from at least a part of the outer surface of the wire rope, and the detection signal from the protrusion detection unit.
  • a wire rope inspection device including a drive unit for moving the detection coil in a direction away from the wire rope, and a configuration for determining the presence or absence of an abnormality in the wire rope based on a signal from the detection coil.
  • the wire rope inspection device is configured to output to the processing device information indicating that the pop-out portion has been detected, based on the detection signal from the pop-out detection unit.
  • the detection coil is operated based on the detection signal from the pop-out detection unit before the pop-out portion comes into contact with the detection coil. Move it away from the wire rope.
  • the detection coil can be separated from the wire rope before the protruding portion comes into contact with the detection coil. Therefore, even when the detection coil is brought close to the wire rope for inspection in order to accurately detect the magnetic flux of the wire rope, the detection coil can be separated from the wire rope before the detection coil comes into contact with the protruding portion. ..
  • FIG. 1 It is a perspective view which showed the structure of the detection part by the wire rope inspection apparatus of 1st Embodiment. It is a figure for demonstrating the continuity of the pop-out detection part by the wire rope inspection apparatus of 1st Embodiment, (A) is a figure which shows the state which the 1st part and 2nd part are separated, (B). ) Is a diagram showing a state in which the first portion and the second portion are in contact with each other. It is a figure for demonstrating the detection of the pop-out portion by the pop-out detection part in the wire rope inspection apparatus of 1st Embodiment. It is a figure for demonstrating the transmission / reception of a signal by the wire rope inspection apparatus of 1st Embodiment.
  • the wire rope inspection system 100 includes a wire rope inspection device 101 and a processing device 102.
  • the wire rope inspection system 100 inspects the wire rope W provided in the elevator 103.
  • the wire rope inspection system 100 is a system for inspecting an abnormality (such as wire breakage) of the wire rope W of the elevator 103 to be inspected.
  • the wire rope inspection device 101 inspects the state of the wire rope W by the total magnetic flux method for measuring the magnetic flux inside the wire rope W. Further, the wire rope inspection device 101 is configured to detect at least a part of the protruding portion Wa (see FIG. 10) from the outer surface of the wire rope W, separately from the inspection by the total magnetic flux method.
  • the processing device 102 displays the measurement result of the magnetic flux of the wire rope W by the wire rope inspection device 101, analyzes based on the measurement result of the magnetic flux of the wire rope W by the wire rope inspection device 101, and displays the detection of the protruding portion Wa. Notify and so on.
  • the elevator 103 includes a car 103a, a sheave 103b, a sheave 103c, a control device 103d, and a wire rope W.
  • the elevator 103 is configured to move the car 103a for loading people and loads in the vertical direction (vertical direction) by rotating the sheave 103b (pulley) provided in the hoist to wind the wire rope W.
  • the elevator 103 is, for example, a double wrap type (full wrap type) rope type elevator including two sheaves 103b and a sheave 103c.
  • the double wrap method is a structure in which the wire rope W guided from the sheave 103b of the winder to the sheave 103c, which is a deflecting wheel, is returned to the sheave 103b of the winder again, so that the wire rope W is hung on the sheave 103b twice. Is.
  • the control device 103d includes a control panel that controls the operation of each part of the elevator 103. Further, the control device 103d includes a wireless communication module and the like, and is configured to be able to communicate with the wire rope inspection device 101 and the processing device 102. Specifically, the control device 103d is configured to change the moving speed (operating speed) of the car 103a of the elevator 103 between normal operation and inspection operation. Details of the operation of the elevator 103 in the inspection operation when the inspection using the wire rope inspection device 101 is performed will be described later.
  • the wire rope W is formed by knitting (for example, strand knitting) a magnetic wire material, and is a magnetic material made of a long material.
  • the wire rope W is inspected for a state (presence or absence of scratches or the like) by the wire rope inspection device 101 in order to prevent cutting due to deterioration.
  • the wire rope W whose degree of deterioration is determined to exceed a predetermined standard is replaced by an inspection worker.
  • the elevator 103 includes a plurality of wire ropes W.
  • the elevator 103 comprises four wire ropes W (see FIGS. 3 and 4).
  • the processing device 102 includes a communication unit 102a, a control unit 102b, a storage unit 102c, a display unit 102d, and a notification unit 102e.
  • the processing device 102 is configured to determine the presence or absence of an abnormality in the wire rope W based on the detection signal from the detection coil 31.
  • the processing device 102 is, for example, a personal computer used by an inspection worker who inspects the wire rope W.
  • the communication unit 102a is configured to be able to communicate with the wire rope inspection device 101 and the control device 103d of the elevator 103.
  • the communication unit 102a is an interface for communication.
  • the communication unit 102a includes a wireless LAN and a wireless communication module capable of wireless communication by Bluetooth (registered trademark) or the like.
  • the processing device 102 receives the measurement result (magnetic flux signal) of the wire rope W by the wire rope inspection device 101 via the communication unit 102a. Further, the processing device 102 is configured to be able to acquire information on the operation mode of the elevator 103 (information on switching the operation mode) from the elevator 103 (control device 103d of the elevator 103) side. Further, the processing device 102 receives the detection signal by the pop-out detection unit 32, which will be described later, via the communication unit 102a.
  • the control unit 102b controls each unit of the processing device 102.
  • the control unit 102b includes a processor such as a CPU (Central Processing Unit), a memory, and the like.
  • the control unit 102b analyzes damage (abnormality) of the wire rope W such as wire disconnection (wire breakage) based on the measurement result (magnetic flux signal) of the wire rope W received via the communication unit 102a. Further, the control unit 102b acquires information indicating that the pop-out portion Wa has been detected via the communication unit 102a.
  • the storage unit 102c is, for example, a storage medium including a flash memory, and stores (saves) information such as the measurement result of the wire rope W from the detection coil 31 and the analysis result of the measurement result of the wire rope W by the control unit 102b. ..
  • the display unit 102d is, for example, a liquid crystal monitor, and displays information such as the measurement result of the wire rope W and the analysis result of the measurement result of the wire rope W by the control unit 102b. In addition, information indicating that the pop-out portion Wa, which will be described later, has been detected is displayed.
  • the notification unit 102e includes a loudspeaker. The notification unit 102e outputs voice under the control of the control unit 102b. For example, when the pop-out portion Wa is detected, the notification unit 102e outputs a buzzer sound to notify the inspection worker that the pop-out portion Wa has been detected.
  • the wire rope inspection device 101 is installed in a portion of the elevator 103 between the sheave 103b and the sheave 103c. Further, as shown in FIG. 2, the wire rope inspection device 101 includes an exciting unit 10, a magnetic field applying unit 20, a detecting unit 30, a driving unit 40, and a control board 50. The excitation unit 10 and the magnetic field application unit 20 are arranged on the main body frame 101a (see FIGS. 3 to 5).
  • the exciting portion 10 is configured to apply a magnetic field (magnetic flux) to the wire rope W. Specifically, the exciting portion 10 excites the state of magnetization of the wire rope W.
  • the magnetic field application unit 20 applies a magnetic field to the wire rope W in advance to adjust the direction of magnetization of the wire rope W. The details of the excitation unit 10 and the magnetic field application unit 20 will be described later.
  • the detection unit 30 includes a detection coil 31 and a pop-out detection unit 32. Further, the detection unit 30 includes a detection main body unit 33. The detection coil 31 and the pop-out detection unit 32 are arranged in the detection main body unit 33.
  • the detection main body 33 is an example of the “detection coil main body” in the claims.
  • the detection coil 31 detects the magnetic flux of the wire rope W while moving relative to the wire rope W to which the magnetic field is applied by the exciting portion 10. Further, the detection coil 31 outputs a magnetic flux signal by detecting the magnetic flux inside the wire rope W by the total magnetic flux method.
  • the pop-out detection unit 32 detects a pop-out portion Wa (see FIG. 10) from at least a part of the outer surface of the wire rope W. Further, the pop-out detection unit 32 is configured to output a detection signal when the pop-out portion Wa is detected. The details of the detection coil 31 and the pop-out detection unit 32 will be described later.
  • the detection main body 33 is a housing in which the detection coil 31 and the pop-out detection unit 32 are arranged. Further, the detection main body unit 33 includes a connection unit 33a. In the first embodiment, the connection unit 33a integrally connects the detection coil 31 and the pop-out detection unit 32. The connection unit 33a connects the detection coil 31 and the pop-out detection unit 32 arranged at a position separated from the detection coil 31 on the upstream side (X1 direction side) of the wire rope W so as to be integrally movable. do.
  • the drive unit 40 moves the detection unit 30 (detection body unit 33). Specifically, the drive unit 40 makes the detection coil 31 and the pop-out detection unit 32 orthogonal to the extending direction (X direction) of the wire rope W (Z direction) based on the signal from the control board 50 described later. ). In the first embodiment, the drive unit 40 moves the detection main body unit 33 to integrally move the detection coil 31 and the pop-out detection unit 32 connected by the connection unit 33a.
  • the drive unit 40 includes a motor 41, a pulley 42, a pulley 43, a belt 44, and a linear guide 45.
  • the drive unit 40 transmits the power of the motor 41 to the belt 44 via the pulley 42.
  • the belt 44 is stretched between the pulley 42 and the pulley 43.
  • the belt 44 is fixed to the detection main body 33. That is, when the motor 41 operates, the detection main body 33 fixed to the belt 44 moves in the Z direction.
  • a linear guide 45 is connected to the detection main body 33. That is, the linear guide 45 acts as a guide, so that the detection main body 33 is linearly moved in the Z direction by the drive unit 40.
  • the control board 50 includes a processing unit 51, a magnetic flux signal acquisition unit 52, a detection circuit 53, a drive circuit 54, and a communication unit 55.
  • the control board 50 controls the operation of the excitation unit 10 (excitation coil 11) and the operation of the drive unit 40 based on the control signal from the processing unit 51.
  • the control board 50 controls each part of the wire rope inspection device 101 by the control process by the processing part 51.
  • the processing unit 51 includes a processor such as a CPU, a memory, an AD converter, and the like.
  • the magnetic flux signal acquisition unit 52 acquires (receives) the magnetic flux signal from the detection unit 30 (detection coil 31).
  • the magnetic flux signal acquisition unit 52 includes an amplifier. Then, the magnetic flux signal acquisition unit 52 amplifies the acquired magnetic flux signal and outputs (transmits) it to the processing unit 51.
  • the detection circuit 53 acquires a detection signal from the pop-out detection unit 32. Then, the detection circuit 53 outputs the acquired detection signal to the processing unit 51. Further, the detection circuit 53 outputs a trigger signal as a trigger for operating the drive unit 40 to the drive circuit 54 based on the acquired detection signal.
  • the trigger signal is a signal indicating that the pop-out portion Wa has been detected by the pop-out detection unit 32.
  • the drive circuit 54 outputs a signal for operating the motor 41 of the drive unit 40 based on the control signal from the processing unit 51. Further, the drive circuit 54 outputs a signal for operating the drive unit 40 by the trigger signal from the detection circuit 53.
  • the communication unit 55 is configured to be able to communicate with the processing device 102 and the control device 103d of the elevator 103.
  • the communication unit 55 includes a wireless LAN and a wireless communication module capable of wireless communication by Bluetooth (registered trademark) or the like.
  • the communication unit 55 outputs (transmits) the acquired magnetic flux signal to the processing device 102. Further, the communication unit 55 outputs (transmits) information indicating that the protrusion portion Wa from the outer surface of the wire rope W is detected by the protrusion detection unit 32 to the processing device 102 and the control device 103d of the elevator 103.
  • the connection between the wire rope inspection device 101 and the control device 103d of the processing device 102 and the elevator 103 via the communication unit 55 may be a wired connection.
  • the wire rope inspection system 100 is a system capable of confirming an abnormality in the wire rope W, which is difficult to visually confirm, by determining the presence or absence of an abnormality in the wire rope W by the total magnetic flux method.
  • the wire rope W contains an abnormal portion (broken wire, thinning, rust, etc.)
  • the magnetic flux in the abnormal portion is different from that in the normal portion.
  • the measuring head unlike the method of measuring the leakage magnetic flux from the abnormal part (wire breakage) on the surface of the wire rope W, the measuring head such as the wire breakage, wall thinning, rust, etc. inside the wire rope W is different. Part) is also a measurable method.
  • the wire rope inspection system 100 is configured to inspect (start) the wire rope W based on an input operation by an inspection worker for the processing device 102.
  • the wire rope W is guided toward the X2 direction of FIGS. 3 to 5 by the rotation of the sheave 103b with respect to the wire rope inspection device 101 arranged between the sheave 103b and the sheave 103c.
  • the magnetic field of the wire rope W guided to the wire rope inspection device 101 is prepared in advance by the magnetic field application unit 20.
  • the excitation coil 11 of the exciting portion 10 excites the magnetic field (magnetic flux) of the wire rope W whose magnetic field is arranged (magnetized) in advance.
  • the detection coil 31 of the detection unit 30 detects the magnetic flux of the wire rope W in a state of being excited after being magnetized. That is, in the first embodiment, the detection coil 31 is configured to detect the magnetic flux of the wire rope W after the magnetic field is applied in advance by the magnetic field application unit 20 (after being magnetized).
  • the magnetic field application unit 20 includes a pair of magnetic field application units 20a and a magnetic field application unit 20b arranged in a direction (Z direction) orthogonal to the extending direction of the wire rope W.
  • the pair of magnetic field application portions 20a and 20b are arranged on both sides of the wire rope W in the lateral direction (direction orthogonal to the extending direction of the wire rope W, Z direction) so as to sandwich the wire rope W.
  • the magnetic field application portion 20a is arranged on the Z1 direction side of the wire rope W.
  • the magnetic field application unit 20b is arranged on the Z2 direction side of the wire rope W.
  • the magnetic field application unit 20 is, for example, a permanent magnet.
  • the magnetic field application portions 20a and 20b are configured to be able to apply a relatively strong magnetic field in order to arrange the magnetization direction of the wire rope W substantially uniformly.
  • the N pole (with diagonal lines) directed in the Z2 direction of the magnetic field application unit 20a and the N pole (with diagonal lines) directed in the Z1 direction of the magnetic field application unit 20b sandwich the wire rope W. It is provided so as to face each other. As a result, the wire rope W that has passed between the magnetic field application portions 20a and 20b is applied with a magnetic field by the magnetic field application portions 20a and 20b, and the direction of magnetization is adjusted.
  • the exciting portion 10 includes an exciting coil 11 wound along the extending direction (X direction) of the wire rope W. As shown in FIG. 3, the excitation coil 11 is provided so as to wind all of the plurality (4) wire ropes W together. The exciting coil 11 generates a magnetic flux (magnetic field) along the direction in which the wire rope W extends (X direction) inside the coil (inside the ring of the coil) due to the flow of the exciting AC current. Then, the exciting coil 11 applies the generated magnetic flux (magnetic field) to the wire rope W. Specifically, an alternating current (excitation current) having a constant magnitude and a constant frequency is passed through the exciting unit 10 (excitation coil 11) under the control of the processing unit 51, so that the direction in which the wire rope W extends (X).
  • alternating current excitation current
  • a magnetic field is applied so as to oscillate in the direction (direction) (a magnetic field in the X1 direction and a magnetic field in the X2 direction appear periodically). That is, in the wire rope W, the magnetic field (magnetic flux) prepared in advance by the magnetic field application unit 20 is vibrated by the excitation unit 10.
  • the detection coil 31 includes a first detection coil 31a arranged in a direction (Z1 direction side) orthogonal to the direction in which the wire rope W extends, and a first detection coil 31a with respect to the wire rope W. It includes the first detection coil 31a and the second detection coil 31b arranged so as to surround the wire rope W on the side opposite to the side to be arranged (Z2 direction side). That is, the detection coil 31 is arranged so as to sandwich one wire rope W by the two coils of the first detection coil 31a and the second detection coil 31b.
  • the detection coil 31 is provided in each of the plurality (4) wire ropes W. That is, each of the plurality (4) wire ropes W is provided with two coils, a first detection coil 31a and a second detection coil 31b.
  • the first detection coil 31a and the second detection coil 31b are independent saddle-shaped coils (saddle-shaped coils). Each of the first detection coil 31a and the second detection coil 31b is provided so as to cover half a circumference of the wire rope W. Therefore, by combining the first detection coil 31a and the second detection coil 31b, the detection coil 31 that surrounds the wire rope W over the entire circumference is configured. Further, the detection coil 31 (the first detection coil 31a and the second detection coil 31b) is each composed of a conductor pattern provided on the flexible substrate. Further, the first detection coil 31a and the second detection coil 31b are provided so as to be wound along the extending direction of the wire rope W.
  • the detection coil 31 is provided so as to be wound around the entire circumference by two saddle-shaped coils along the extending direction (X direction) of the wire rope W.
  • winding means not only winding (winding) over one turn or more, but also winding by the number of times (angle) of one turn or less (for example, half a turn). It is described as a concept including.
  • each of the first detection coil 31a and the second detection coil 31b is provided so as to be wound along the extending direction (X direction) of the wire rope W, so that the extending direction (X) of the wire rope W is provided. Detects (measures) the magnetic flux in the direction that penetrates the inside of the coil along the direction). That is, the detection coil 31 (first detection coil 31a and second detection coil 31b) is configured to detect a change in magnetic flux (magnetic field) that is periodically time-changed by the excitation unit 10 (excitation coil 11). There is. Further, the detection coil 31 (first detection coil 31a and second detection coil 31b) outputs a magnetic flux signal indicating the detected magnetic flux to the magnetic flux signal acquisition unit 52 of the control board 50. That is, when the magnetic flux is detected for the four wire ropes W, a total of eight magnetic flux signals are acquired by the magnetic flux signal acquisition unit 52.
  • the elevator 103 in the normal operation in which the elevator 103 operates with a person and a load placed on it, and in the inspection operation in which the wire rope W is inspected by measuring the magnetic flux by the detection coil 31.
  • the elevator 103 is configured to have different operating speeds (operating speeds) (change the operating mode).
  • the operating speed (relative speed of the wire rope W with respect to the detection coil 31) is about 500 m / min
  • the operating speed relative speed of the wire rope W with respect to the detection coil 31
  • the operating speed is 10 m / min. It is about 40 m / min or less.
  • the vibration of the wire rope W increases according to the operating speed of the elevator 103.
  • the vibration width on one side of the wire rope W during normal operation is about 13 mm
  • the vibration width of the wire rope W during inspection operation is about 3 mm.
  • the detection coil 31 is configured so that the distance from the wire rope W (coil separation distance D1) can be changed.
  • the drive unit 40 increases the coil separation distance D1, which is the distance between the detection coil 31 and the wire rope W, during the normal operation of the elevator 103. It is configured in.
  • the drive unit 40 is configured to move the detection coil 31 so that the coil separation distance D1 is smaller than that in the normal operation during the inspection operation in which the operation speed is smaller than that in the normal operation. Has been done.
  • the detection coils 31 (the first detection coil 31a and the second detection coil 31b) are arranged as close as possible to the wire rope W to be inspected. Then, the magnetic flux of the wire rope W is detected by the detection coil 31 with the coil separation distance D1 reduced.
  • the magnetic flux signal acquired by the processing unit 51 is transmitted to the processing device 102 via the communication unit 55.
  • the control unit 102b of the processing device 102 analyzes the magnetic flux of the wire rope W based on the transmitted magnetic flux signal. Further, the control unit 102b of the processing device 102 causes the display unit 102d to display the analysis result screen. Further, the control unit 102b of the processing device 102 stores the magnetic flux signal transmitted to the storage unit 102c and the analysis result.
  • a protruding portion Wa (see FIG. 10) may be generated from at least a part of the outer surface. For example, if one of the plurality of strands constituting the wire rope W is broken (cut), the wire rope W may be in a state of protruding from the outer surface.
  • the pop-out detection unit 32 according to the first embodiment is configured to detect the pop-out portion Wa of the wire rope W as described above before the pop-out portion Wa comes into contact with the detection coil 31 (detection main body portion 33). ..
  • the pop-out detection unit 32 is arranged so as to surround the wire rope W.
  • the pop-out detection unit 32 has a first portion 32a arranged in a direction orthogonal to the direction in which the wire rope W extends (Z1 direction side) and a first portion 32a arranged with respect to the wire rope W. It includes the first portion 32a and the second portion 32b arranged so as to surround the wire rope W on the side opposite to the side facing the wire rope (Z2 direction side).
  • the pop-out detection unit 32 (first portion 32a and second portion 32b) is a plate-shaped conductor that is bent at the bent portion 32M.
  • the first portion 32a and the second portion 32b have a flat contact surface 32N in which the end portions of the plate-shaped conductors are further bent and come into surface contact with each other.
  • the pop-out detection unit 32 is, for example, a metal plate such as stainless steel or a copper plate. Further, as shown in FIG. 11B, each of the first portion 32a and the second portion 32b are in contact with each other while being elastically deformed.
  • each of the first portion 32a and the second portion 32b has a leaf spring structure, and the contact surface 32N is in surface contact with each other in a state of being urged in directions facing each other by the restoring force of the elastically deformed leaf spring structure. is doing.
  • first portion 32a and the second portion 32b are on the wire rope W side (Z2 direction side) along a surface (YZ plane) intersecting the extending direction of the wire rope W from the extending direction (X direction) of the wire rope W. Or it is bent in the Z1 direction side).
  • the first portion 32a and the second portion 32b are configured to surround the wire rope W by a semicircular notch provided at an end where the first portion 32a and the second portion 32b are in contact with each other. That is, the pop-out detection unit 32 detects the pop-out portion Wa over the entire circumference of the wire rope W by the first portion 32a and the second portion 32b, each having a semicircular notch, surrounding the wire rope W. It is configured as follows.
  • the pop-out detection unit 32 which is a plate-shaped member, is configured to commonly detect each pop-out portion Wa of the plurality of (4) wire ropes W. That is, in the pop-out detection unit 32, when the pop-out portion Wa is generated from the outer surface of any one of the four wire ropes W by the common first portion 32a and the second portion 32b, the pop-out portion Wa Is configured to detect.
  • the pop-out detection unit 32 detects the pop-out portion Wa by contacting the pop-out portion Wa of the wire rope W. It is configured to do. Specifically, the first portion 32a and the second portion 32b are arranged in a state of being in contact with each other and electrically conducting while surrounding the wire rope W. The pop-out detection unit 32 is configured such that the first portion 32a and the second portion 32b are electrically connected to each other by surface contact between the contact surfaces 32N of the first portion 32a and the second portion 32b.
  • the conduction between the first portion 32a and the second portion 32b is caused by the displacement of at least one of the first portion 32a and the second portion 32b due to the contact with the pop-out portion Wa. It is configured to detect the protruding portion Wa when it is blocked.
  • the first portion 32a and the second portion 32b are elastically deformed and displaced due to contact with the protruding portion Wa.
  • lead wires (not shown) are electrically connected to each of the first portion 32a and the second portion 32b.
  • the first portion 32a and the second portion 32b are connected to the detection circuit 53 of the control board 50 via a lead wire.
  • the detection circuit 53 determines the continuity between the first portion 32a and the second portion 32b.
  • the pop-out detection unit 32 is configured so that the detection unit separation distance D2, which is the separation distance from the wire rope W, can be changed. That is, each of the first portion 32a and the second portion 32b is configured so that the detection unit separation distance D2 can be changed. Specifically, since the pop-out detection unit 32 (first portion 32a and second portion 32b) is integrally configured with the detection coil 31, the coil separation distance D1 of the detection coil 31 is increased by the operation of the drive unit 40. When changed, the detection unit separation distance D2 is similarly changed.
  • the pop-out detection unit 32 is arranged so that the detection unit separation distance D2 becomes larger during the normal operation of the elevator 103 that does not detect by the detection coil 31 than during the inspection operation.
  • the pop-out detection unit 32 is configured to reduce the detection unit separation distance D2 during the inspection operation.
  • the pop-out detection unit 32 is a distance from the wire rope W in the case of an inspection operation in which the magnetic flux of the wire rope W is detected by the detection coil 31.
  • the detection unit separation distance D2 is arranged so as to have a size equal to or less than the coil separation distance D1 which is the separation distance between the detection coil 31 and the wire rope W.
  • the first detection coil 31a and the second detection coil 31b of the detection coil 31 surround the wire rope W to form a circular (cylindrical) hole.
  • the first portion 32a and the second portion 32b are arranged so as to surround the wire rope W, whereby a circular hole portion is formed.
  • the wire rope inspection device 101 is configured such that the size (diameter) of the hole formed by the pop-out detection unit 32 is equal to or smaller than the size (diameter) of the hole formed by the detection coil 31. Therefore, during the inspection operation, the pop-out detection unit 32 is arranged at the same position as the detection coil 31 at a distance from the wire rope W, or at a position closer to the wire rope W than the detection coil 31.
  • the detection coil 31 is arranged so as to be as close as possible to the wire rope W. Therefore, as described above, the wire rope inspection device 101 is configured to avoid (retract) the detection coil 31 so as not to come into contact with the protruding portion Wa when the protruding portion Wa is generated.
  • the drive unit 40 separates the pop-out detection unit 32 (first portion 32a and second portion 32b) from the wire rope W based on the detection signal from the pop-out detection unit 32. Move in the direction. Further, the drive unit 40 wires the detection coil 31 (first detection coil 31a and second detection coil 31b) based on the detection signal from the pop-out detection unit 32 before the pop-out portion Wa comes into contact with the detection coil 31. Move in the direction away from the rope W.
  • the drive unit 40 separates the detection coil 31 and the pop-out detection unit 32 connected by the connection unit 33a from the wire rope W based on the detection signal from the pop-out detection unit 32. Move in one piece. Specifically, the drive unit 40 receives a detection signal from the protrusion detection unit 32 due to the detection of the protrusion portion Wa from the outer surface of at least one of the plurality (four) wire ropes W. Based on this, all of the detection coils 31 provided in each of the plurality of wire ropes W are configured to be integrally moved in a direction away from the wire ropes W.
  • the drive unit 40 detects by increasing the coil separation distance D1 and the detection unit separation distance D2 from the size during inspection operation to the size during normal operation based on the detection signal from the pop-out detection unit 32. It is possible to prevent the coil 31 and the pop-out detection unit 32 from coming into contact with the pop-out portion Wa.
  • the pop-out detection unit 32 (first portion 32a and second portion 32b) is on the upstream side (X1) of the wire rope W with respect to the detection coil 31 in the extending direction (X direction) of the wire rope W. It is provided on the direction side). Specifically, when the pop-out portion Wa is detected, the pop-out portion is detected at a position separated from the detection coil 31 on the upstream side by a distance that can be retracted before the detected pop-out portion Wa comes into contact with the detection coil 31.
  • the unit 32 is arranged.
  • the wire rope during the inspection operation from the pop-out detection unit 32 to the position of the detection coil 31.
  • the pop-out detection unit 32 is arranged so as to be separated by the distance that the wire rope W moves in 0.5 seconds at the moving speed of W.
  • the pop-out detection unit 32 is located at a position 25 cm or more away from the detection coil 31 on the upstream side of the wire rope W. Be placed.
  • the pop-out detection unit 32 is arranged at a position separated from the detection coil 31 on the upstream side of the wire rope W by 12.5 cm or more. ..
  • the detection circuit 53 sends a signal indicating that the protruding portion Wa is detected when the continuity between the first portion 32a and the second portion 32b is cut off, and the processing unit. Output to 51. That is, the pop-out detection unit 32 itself is configured to operate the drive unit 40 by functioning as a switch.
  • the drive circuit 54 operates the drive unit 40 based on the input from the detection circuit 53.
  • the processing unit 51 is configured to be able to acquire signals from the detection circuit 53 and the drive circuit 54.
  • the wire rope inspection device 101 is configured to output information indicating that the pop-out portion Wa has been detected to the processing device 102 based on the detection signal from the pop-out detection unit 32.
  • the processing unit 51 outputs the acquired information regarding the detection of the pop-out portion Wa to the control device 103d of the elevator 103 and the control unit 102b of the processing device 102 via the communication unit 55.
  • the wire rope inspection system 100 is configured to move the detection coil 31 in a direction away from the wire rope W and stop the operation of the elevator 103 when the protrusion detection unit 32 detects the protrusion portion Wa. Has been done. Specifically, when the pop-out portion Wa is detected by the pop-out detection unit 32, the elevator stop command signal as information indicating that the pop-out portion Wa from the processing unit 51 is detected is amplified by the signal amplification circuit. Is output to the control device 103d of the elevator 103. Then, the control device 103d stops the operation of the elevator 103 based on the acquired elevator stop command signal.
  • the processing unit 51 transmits information indicating that the pop-out portion Wa has been detected to the processing device 102 via the communication unit 55. Then, the control unit 102b of the processing device 102 causes the display unit 102d to display the information indicating the detection of the pop-out portion Wa based on the acquired information, and causes the notification unit 102e to notify the information.
  • the detection coil is before the pop-out portion Wa comes into contact with the detection coil 31. 31 is moved in a direction away from the wire rope W. As a result, when the protruding portion Wa of the wire rope W is detected, the detection coil 31 can be separated from the wire rope W before the protruding portion Wa comes into contact with the detection coil 31. Therefore, even when the detection coil 31 is brought close to the wire rope W for inspection in order to accurately detect the magnetic flux of the wire rope W, the detection coil 31 is connected to the wire rope before the detection coil 31 comes into contact with the protruding portion Wa. It can be separated from W.
  • the pop-out detection unit 32 is arranged so as to surround the wire rope W.
  • the pop-out detection unit 32 is arranged so as to surround the wire rope W, the pop-out portion Wa can be detected over the entire circumference of the wire rope W. Therefore, unlike the case where the pop-out detection unit 32 is arranged in a part of the entire circumference of the wire rope W, it is possible to suppress oversight of the pop-out portion Wa of the wire rope W. As a result, the contact between the detection coil 31 and the protruding portion Wa can be effectively suppressed.
  • the pop-out detection unit 32 is configured so that the detection unit separation distance D2, which is the separation distance from the wire rope W, can be changed.
  • the pop-out detection unit 32 is configured so that the detection unit separation distance D2, which is the separation distance from the wire rope W, can be changed, so that the movement speed of the wire rope W is increased and vibration occurs.
  • the pop-out detection unit 32 can be arranged at a position separated from the wire rope W. Therefore, when the moving speed of the wire rope W is increased, the protrusion detection unit 32 can be prevented from coming into contact with the wire rope W by increasing the detection unit separation distance D2.
  • the pop-out detection unit 32 has a first portion 32a arranged in a direction orthogonal to the direction in which the wire rope W extends, and a side on which the first portion 32a is arranged with respect to the wire rope W.
  • the first portion 32a and the second portion 32b arranged so as to surround the wire rope W on the opposite side thereof are included, and each of the first portion 32a and the second portion 32b changes the detection unit separation distance D2. It is configured to be possible.
  • the pop-out detection unit 32 is divided into two parts, a first portion 32a and a second portion 32b, so that the first portion 32a and the second portion 32b are both sides of the wire rope W.
  • the wire rope W By arranging the wire rope so as to be sandwiched from the wire rope W, the wire rope W can be easily surrounded by the pop-out detection unit 32. Therefore, the pop-out detection unit 32 can easily surround the wire rope W by the first portion 32a and the second portion 32b as compared with the case where the wire rope W is surrounded by one member.
  • the first portion 32a and the second portion 32b are provided on the upstream side of the wire rope W with respect to the detection coil 31 in the extending direction of the wire rope W, and the protruding portion of the wire rope W.
  • the drive unit 40 is configured to detect the protruding portion Wa by contacting the Wa, and the drive unit 40 is based on a detection signal caused by contact of at least one of the first portion 32a and the second portion 32b with the protruding portion Wa.
  • the detection coil 31 is configured to move in a direction away from the wire rope W before the protruding portion Wa comes into contact with the detection coil 31.
  • the protruding portion Wa that may come into contact with the detection coil 31 is detected by first contacting at least one of the first portion 32a and the second portion 32b on the upstream side of the detection coil 31. can do. Therefore, the detection coil 31 can be easily moved in the direction away from the wire rope W before the protruding portion Wa and the detection coil 31 come into contact with each other. As a result, the contact between the detection coil 31 and the protruding portion Wa can be easily suppressed.
  • the first portion 32a and the second portion 32b are bent plate-shaped conductors, and are arranged in a state of being in contact with each other and electrically conducting while surrounding the wire rope W.
  • the pop-out detection unit 32 is connected to the first portion 32a and the second portion 32b due to the displacement of at least one of the first portion 32a and the second portion 32b due to the contact with the pop-out portion Wa. Is configured to detect the pop-out portion Wa when is blocked. With this configuration, it is easy to detect that at least one of the first portion 32a and the second portion 32b is displaced based on the fact that the conduction between the first portion 32a and the second portion 32b is cut off. can do.
  • the protruding portion Wa from the outer surface of the wire rope W can be easily detected, so that the contact between the protruding portion Wa and the detection coil 31 can be more easily suppressed.
  • the pop-out detection unit 32 is displaced due to the elastic deformation of at least one of the first portion 32a and the second portion 32b due to the contact with the pop-out portion Wa. It is configured to detect the protruding portion Wa when the continuity between the portion 32a and the second portion 32b is cut off.
  • the first portion 32a and the second portion 32b can be easily returned to the original positions after the contact with the protruding portion Wa. Therefore, when the inspection is performed again after detecting the protruding portion Wa once, the first portion 32a and the second portion 32b are combined without providing a configuration for returning the first portion 32a and the second portion 32b to their original positions. Can be conducted again. As a result, it is possible to suppress the complexity of the device configuration caused by providing the configuration for reconducting the first portion 32a and the second portion 32b.
  • the first portion 32a and the second portion 32b have a flat contact surface 32N in which the end portions of the plate-shaped conductors are further bent and come into surface contact with each other, and the pop-out detection unit 32 has a pop-out detection unit 32.
  • the contact surfaces 32N of the first portion 32a and the second portion 32b are brought into surface contact with each other so that the first portion 32a and the second portion 32b are electrically connected to each other. With this configuration, the first portion 32a and the second portion 32b can be more reliably electrically conducted by conducting the conduction by surface contact.
  • the detection unit separation distance D2 which is the separation distance from the wire rope W
  • the detection coil 31 and the wire It is arranged so as to have a size equal to or less than the coil separation distance D1 which is the separation distance from the rope W, and the detection unit separation distance D2 is arranged to be larger than that during the inspection operation when the detection coil 31 does not perform detection. Rope.
  • the pop-out detection unit 32 can accurately detect the pop-out portion Wa that may come into contact with the detection coil 31. As a result, even when the detection coil 31 is brought close to the wire rope W to detect the magnetic flux, the contact between the detection coil 31 and the protruding portion Wa can be accurately suppressed. Further, in the first embodiment, when the detection by the detection coil 31 is not performed, the pop-out detection unit 32 is arranged at a position away from the wire rope W. Therefore, when the detection is not performed, the moving speed of the wire rope W is increased. Even when the vibration width of the wire rope W is increased by increasing the size, it is possible to suppress the contact between the pop-out detection unit 32 and the wire rope W. Therefore, when the detection coil 31 does not perform detection, the wire rope W can be efficiently moved (driven) while avoiding contact with the pop-out detection unit 32 by increasing the operating speed of the wire rope W. ..
  • the detection coil 31 is arranged with the first detection coil 31a arranged in a direction orthogonal to the direction in which the wire rope W extends, and the first detection coil 31a with respect to the wire rope W.
  • the drive unit 40 includes a second detection coil 31b arranged so as to surround the wire rope W together with the first detection coil 31a on the side opposite to the side, and the drive unit 40 is the first based on the detection signal from the pop-out detection unit 32.
  • Each of the 1st detection coil 31a and the 2nd detection coil 31b is configured to move in a direction away from the wire rope W. With this configuration, the detection coil 31 is divided into two parts, a first detection coil 31a and a second detection coil 31b.
  • the detection coil 31 can be easily moved (retracted) in each of the two directions. Therefore, the contact between the detection coil 31 and the protruding portion Wa can be more easily suppressed as compared with the case where the detection coil 31 is configured to surround the wire rope W by one member.
  • a magnetic field application unit 20 for applying a magnetic field to the wire rope W in advance to adjust the direction of magnetization of the wire rope W is further provided, and the first detection coil 31a and the second detection coil 31b are provided with a magnetic field.
  • the drive unit 40 is configured to detect the magnetic flux of the wire rope W after the magnetic field is applied in advance by the application unit 20, and is provided to wind the wire rope W along the extending direction of the wire rope W. Refers to each of the first detection coil 31a and the second detection coil 31b provided so as to be wound along the extending direction of the wire rope W based on the detection signal from the pop-out detection unit 32 from the wire rope W. It is configured to move in the direction of separation.
  • the total magnetic flux method for measuring the entire magnetic flux including the inside of the wire rope W can be used. Even when the wire rope W is inspected, the first detection coil 31a and the second detection coil 31b can be moved when the protruding portion Wa is detected. Therefore, even when an abnormality inside the wire rope W is detected by the total magnetic flux method, the contact between the first detection coil 31a and the second detection coil 31b and the protruding portion Wa can be effectively suppressed.
  • the communication unit 55 is further provided to output information indicating that the protrusion portion Wa from the outer surface of the wire rope W has been detected by the protrusion detection unit 32 to the outside of the device.
  • the processing device 102 PC
  • the control device 103d of the elevator 103 PC
  • Information indicating that the partial Wa has been detected can be output. Therefore, when the protruding portion Wa is detected, processing such as notifying the inspection worker of the detection of the protruding portion Wa and stopping the operation of the elevator 103 is performed by an external device of the wire rope inspection device 101. Can be done by.
  • the detection coil 31 is configured to detect the magnetic flux of the wire rope W provided in the elevator 103, and the drive unit 40 together with the detection coil 31 during normal operation of the elevator 103. It is configured to increase the coil separation distance D1, which is the distance from the wire rope W, and detects that the coil separation distance D1 is smaller than during normal operation during inspection operation, which has a lower operating speed than during normal operation.
  • the coil 31 is moved, and when the pop-out portion Wa is detected based on the detection signal from the pop-out detection unit 32, the coil separation distance D1 is increased. With this configuration, during normal operation of the elevator 103, the width of vibration of the wire rope W becomes large due to the high operating speed.
  • the detection coil 31 becomes the wire rope W. Contact can be suppressed.
  • the vibration width of the wire rope W becomes smaller because the operating speed is smaller than that during the normal operation. Therefore, the detection accuracy of the detection coil 31 is improved by reducing the coil separation distance D1. Can be made to. Further, even when the inspection operation is performed by reducing the coil separation distance D1, by increasing the coil separation distance D1 based on the detection signal from the protrusion detection unit 32, the detection coil 31 and the protrusion portion Wa can be separated from each other. Contact can be avoided.
  • the detection main body 33 (detection coil main body) including the connection portion 33a for integrally connecting the detection coil 31 and the pop-out detection unit 32 is further provided, and the drive unit 40 is the pop-out detection unit.
  • the detection main body 33 By moving the detection main body 33 based on the detection signal from 32, the detection coil 31 connected by the connection 33a and the pop-out detection unit 32 are configured to be integrally moved.
  • the detection coil 31 and the pop-out detection unit 32 can be integrally moved by the common drive unit 40. Therefore, the drive unit 40 is provided for each of the detection coil 31 and the pop-out detection unit 32. Unlike the case of providing the device, the complexity of the device configuration can be suppressed.
  • the wire rope W includes a plurality of wire ropes W
  • the detection coil 31 is provided for each of the plurality of wire ropes W
  • the pop-out detection unit 32 includes the plurality of wire ropes W.
  • the drive unit 40 is configured to detect each of the protruding portions Wa in common, and the driving unit 40 detects the protruding portion Wa from the outer surface of at least one of the plurality of wire ropes W. Based on the detection signal from the pop-out detection unit 32, all of the detection coils 31 provided in each of the plurality of wire ropes W are integrally moved in a direction away from the wire rope W. ..
  • the protrusion portion Wa of the plurality of wire ropes W can be detected by the common protrusion detection unit 32. Therefore, it is possible to suppress the complexity of the device configuration as compared with the case where the protruding portion Wa of the plurality of wire ropes W is detected by the separate pop-out detecting units 32.
  • the wire rope inspection system 200 includes a wire rope inspection device 201. Similar to the first embodiment, the wire rope inspection device 201 measures the magnetic flux of the wire rope W provided in the elevator 103, and outputs the measured magnetic flux signal to the processing device 102. Further, the wire rope inspection device 201 includes a detection unit 230 and a drive unit 240.
  • the detection unit 230 includes a detection coil 231, a pop-out detection unit 232, a detection coil main body 233a, and a pop-out detection main body 233b.
  • the detection coil 231 measures the magnetic flux of the wire rope W as in the first embodiment. That is, for each of the plurality (4) wire ropes W, two detection coils 231 on the Z1 direction side and two on the Z2 direction side (first detection coil 231a and second detection coil 231b, see FIG. 16). Is provided, and each of the wire ropes W is configured to be surrounded by two detection coils 231 (first detection coil 231a and second detection coil 231b). Further, the pop-out detection unit 232 detects the pop-out portion Wa from at least a part of the outer surface of the wire rope W as in the first embodiment.
  • the detection coil 231 is arranged in the detection coil main body 233a.
  • the pop-out detection unit 232 is arranged in the pop-out detection main body unit 233b. That is, in the second embodiment, the pop-out detection unit 232 is configured separately from the detection coil 231.
  • the drive unit 240 is configured to move each of the detection coil 231 and the pop-out detection unit 232 based on the detection signal from the pop-out detection unit 232. Specifically, the drive unit 240 moves the detection coil 231 and the pop-out detection unit 232 so as to be separated from the wire rope W in the directions (Z1 direction and Z2 direction) based on the detection signal. .. Further, the drive unit 240 changes the positions of the detection coil 231 and the pop-out detection unit 232 in each of the normal operation and the inspection operation of the elevator 103, as in the first embodiment.
  • the drive unit 240 includes a motor 241 and a pulley 242a, a pulley 242b, a pulley 243a, a pulley 243b, a belt 244a, a belt 244b, and a shaft 246.
  • the drive unit 240 moves the detection coil 231 and the pop-out detection unit 232, which are configured as separate bodies, by transmitting the power of the common motor 241 to the pulleys 242a and 242b via the shaft 246.
  • the drive unit 240 rotates the pulley 242a on the detection coil 231 side (detection coil main body unit 233a side) via the shaft 246 by rotationally driving the motor 241. Then, as the pulley 242a rotates, the belt 244a stretched between the pulley 242a and the pulley 243a moves. The belt 244a is fixed to the detection coil main body 233a. Therefore, the detection coil main body 233a is moved by the drive unit 240, so that the detection coil 231 moves in the Z1 direction and the Z2 direction.
  • the pop-out detection unit 232 is also moved by the power from the motor 241 for moving the detection coil 231.
  • the shaft 246 extending from the motor 241 rotates the pulley 242b on the pop-out detection unit 232 side (pop-out detection main body portion 233b side).
  • the belt 244b stretched between the pulleys 242b and 243b moves due to the rotation of the pulley 242b.
  • the belt 244b is fixed to the pop-out detection main body 233b. Therefore, the pop-out detection main body unit 233b is moved by the drive unit 240, so that the pop-out detection unit 232 moves in the Z1 direction and the Z2 direction.
  • the drive unit 240 transmits the power of the motor 241 via the shaft 246 to detect the protrusion of the detection coil main body 233a on the detection coil 231 side and the protrusion detection unit 232 on the detection coil 231 side.
  • the main body portion 233b is moved.
  • the other configurations of the second embodiment are the same as those of the first embodiment.
  • the pop-out detection unit 232 is configured separately from the detection coil 231, and the drive unit 240 has the detection coil 231 and the pop-out detection unit 232 based on the detection signal from the pop-out detection unit 232. It is configured to move each of the and.
  • the pop-out detection unit 232 is integrally configured with the detection coil 231 due to the rigidity of the housing (main body portion) in which the detection unit 230 (detection coil 231 and pop-out detection unit 232) is arranged. Therefore, when the distance from the detection coil 231 to the pop-out detection unit 232 is relatively large, the detection unit separation distance D2, which is the distance between the pop-out detection unit 232 and the wire rope W, becomes unstable.
  • the pop-out detection unit 232 is integrally configured with the detection coil 231, the distance of the pop-out detection unit 232 from the detection coil 231 is limited in consideration of the rigidity of the housing in which the detection unit 230 is arranged. Will be done.
  • the pop-out detection unit 232 is configured separately from the detection coil 231. With this configuration, unlike the case where the detection coil 231 and the pop-out detection unit 232 are integrally configured, the detection coil 231 and the pop-out detection unit 232 can be arranged separately with respect to the wire rope W. ..
  • FIGS. 18 to 20 The configuration of the wire rope inspection system 300 according to the third embodiment will be described with reference to FIGS. 18 to 20.
  • This third embodiment is different from the first embodiment in which the drive unit 40 automatically changes the position of the detection coil 31 during normal operation and the position of the detection coil 31 during inspection operation.
  • the position of the detection coil 331 during normal operation and the position of the detection coil 331 during inspection operation are manually changed by the operation of the position change lever 360 by the operator.
  • the same components as those of the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.
  • the wire rope inspection system 300 includes a wire rope inspection device 301. Similar to the first embodiment, the wire rope inspection device 301 measures the magnetic flux of the wire rope W provided in the elevator 103, and outputs the measured magnetic flux signal to the processing device 102. Further, the wire rope inspection device 301 includes a detection unit 330, a drive unit 340, and a position change lever 360.
  • the detection unit 330 includes a detection coil 331, a pop-out detection unit 332, and a detection main body unit 333. Similar to the first embodiment, the detection coil 331 measures the magnetic flux of the wire rope W. The detection coil 331 is arranged in the detection main body 333. Further, the detection coil 331 is configured so that the separation distance from the wire rope W (coil separation distance D1) can be changed. The pop-out detection unit 332 detects the pop-out portion Wa from at least a part of the outer surface of the wire rope W as in the first embodiment.
  • the detection coil 331 includes a first detection coil 331a arranged on the Z1 direction side and a second detection coil 331b arranged on the Z2 direction side, as in the first embodiment. include.
  • the detection coil 331 (first detection coil 331a and second detection coil 331b) is configured to be movable in the Z1 direction and the Z2 direction, respectively.
  • the position change lever 360 accepts an operation of changing the position of the detection coil 331.
  • the wire rope inspection device 301 in the third embodiment operates in a state where the position of the detection coil 331 is different between the normal operation and the inspection operation of the elevator 103, as in the first embodiment. It is configured as follows.
  • the position change lever 360 has a normal operation position in which the coil separation distance D1 which is the distance between the detection coil 331 and the wire rope W is large, and an inspection operation position in which the coil separation distance D1 is smaller than the normal operation position. Is operated to change the position of the detection coil 331.
  • the wire rope inspection device 301 according to the third embodiment is configured so that the position of the detection coil 331 can be changed to either the normal operation position or the inspection operation position by the operation of the inspection operator with respect to the position change lever 360. Has been done.
  • the detection coil 331 is arranged at the inspection operation position by operating the position change lever 360 from the state where the detection coil 331 is arranged at the normal operation position. Then, the magnetic flux of the wire rope W is detected (measured) by the detection coil 331 in a state where the detection coil 331 is arranged at the inspection operation position.
  • the position change lever 360 includes a grip portion 361, an urging member 362, a fulcrum 363, and a pin 364.
  • the grip portion 361 is a portion gripped by an inspection worker in order to change the position of the detection coil 331 by the position change lever 360.
  • the fulcrum 363 serves as a fulcrum (center point) for the rotational movement of the position change lever 360.
  • the urging member 362 is, for example, a stainless steel spring. One end of the urging member 362 is fixed to the position change lever 360 on one side (Y1 direction side) of the fulcrum 363, and the other end is on the second detection coil 331b side (Y2 direction side) of the other side (Y2 direction side) of the fulcrum 363.
  • the urging member 362 holds each state (position of the detection coil 331) of the normal operation position and the inspection operation position by urging the position change lever 360 side and the detection main body 333 side in a direction of attracting each other. do. That is, the urging member 362 holds a state in which the grip portion 361 of the position change lever 360 is tilted toward the Z1 direction and a state in which the grip portion 361 is tilted toward the Z2 direction. Further, the pin 364 is inserted into an elongated hole extending in the Y direction provided in the detection main body portion 333 on the second detection coil 331b side (Z2 direction side).
  • the position change lever 360 is on the second detection coil 331b side by inserting the pin 364 into a long hole provided in the detection main body 333 on the second detection coil 331b side (Z2 direction side) so that the pin 364 can move in the Y direction. It is connected to the detection main body 333 of.
  • the detection main body 333 on the first detection coil 331a side (Z1 direction side) and the detection main body 333 on the second detection coil 331b side (Z2 direction side) are interlocked by the belt 344 of the drive unit 340 described later. It is configured to move. Therefore, the position change lever 360 changes the positions of both the first detection coil 331a and the second detection coil 331b in conjunction with each other by moving the detection main body portion 333 on the second detection coil 331b side (Z2 direction side). It is configured to be possible.
  • the drive unit 340 moves (retracts) the detection coil 331 in the direction away from the wire rope W (Z1 direction and Z2 direction) based on the detection signal from the pop-out detection unit 332. That is, in the third embodiment, the drive unit 340 has the detection signal from the pop-out detection unit 332 in a state where the position of the detection coil 331 is moved from the normal operation position to the inspection operation position by the operation with respect to the position change lever 360.
  • the detection coil 331 is configured to move in a direction away from the wire rope W by changing the position of the detection coil 331 from the inspection operation position to the normal operation position.
  • the drive unit 340 includes a solenoid coil 341, a pulley 342, a pulley 343, and a belt 344.
  • the belt 344 is stretched between the pulley 342 and the pulley 343. Further, the belt 344 is fixed to the detection main body 333. That is, the detection main body 333 in which the first detection coil 331a is arranged and the detection main body 333 in which the second detection coil 331b is arranged move in the Z direction in conjunction with each other by the belt 344. That is, the detection main body 333 fixed to the belt 344 moves in conjunction with each other, so that the first detection coil 331a and the second detection coil 331b move in a direction away from each other.
  • the solenoid coil 341 is connected to the position change lever 360 via the connecting rod 341a. Further, the solenoid coil 341 generates a magnetic field by a current from a power supply circuit (not shown), moves the connection rod 341a in the Z1 direction, and rotates the position change lever 360. That is, the solenoid coil 341 changes (rotates) the position (angle) of the position change lever 360 based on the detection signal from the pop-out detection unit 332, thereby changing (rotating) the detection coil 331 (first detection coil 331a and second detection coil 331a).
  • the detection coil 331b) is configured to move in the direction away from the wire rope W (Z1 direction and Z2 direction).
  • the pop-out detection unit 332 may be configured to change the position by the position change lever, similarly to the detection coil 331. Further, the pop-out detection unit 332 may be configured to be connected to the connection unit and move integrally with the detection coil 331 as in the first embodiment. Further, the other configurations of the third embodiment are the same as those of the first embodiment.
  • the detection is performed at either the normal operation position where the coil separation distance D1 which is the distance between the detection coil 331 and the wire rope W is large and the inspection operation position where the coil separation distance D1 is smaller than the normal operation position.
  • the position change lever 360 operated to change the position of the coil 331 is further provided, and the drive unit 340 is moved from the normal operation position to the inspection operation position by the operation with respect to the position change lever 360.
  • the detection coil 331 is moved in the direction away from the wire rope W by changing the position of the detection coil 331 from the inspection operation position to the normal operation position based on the detection signal from the pop-out detection unit 332. It is configured in.
  • the position of the detection coil 331 when the position of the detection coil 331 is changed from the normal operation position to the inspection operation position to inspect the wire rope W, the position of the detection coil 331 can be easily moved by operating the position change lever 360. Can be changed to. Therefore, it is possible to more easily switch from the normal operation to the inspection operation as compared with the case where the position of the detection coil 331 is changed by controlling the movement of the detection coil 331 by the drive unit 340.
  • the pop-out detection unit 32 (232, 332) is arranged so as to surround the wire rope W, but the present invention is not limited to this.
  • the pop-out detection unit may be configured to detect the pop-out portion Wa so as to correspond to the shape of the flat-type detection coil. That is, instead of providing a notch so as to form a circular hole portion, the pop-out detection portion may be configured so as to be sandwiched by a plate-shaped member having linear ends in each of the vertical directions.
  • the pop-out detection unit 32 (232, 332) is configured to surround the wire rope W by two portions, the first portion 32a and the second portion 32b.
  • the present invention is not limited to this.
  • the pop-out detection unit may be configured by arranging one portion (member) so as to be wound around it.
  • the pop-out detection unit 32 (232, 332) is configured to detect the pop-out portion Wa by coming into contact with the pop-out portion Wa.
  • the pop-out detection unit may be configured to detect the pop-out portion Wa without contacting the pop-out portion Wa.
  • the pop-out detection unit may be configured to detect a portion larger than the assumed normal cross-sectional area (width) of the wire rope W as the pop-out portion Wa by using an optical sensor.
  • the pop-out detection unit 32 (232, 332) is arranged on the upstream side of the wire rope W with respect to the detection coil 31 (231, 331).
  • the pop-out detection unit may be provided on both the upstream side and the downstream side of the detection coil 31 (231, 331). That is, the pop-out detection unit may be configured so as to be able to cope with the movement of the wire rope W not only from one direction but also from both directions.
  • the magnetic field application unit may be similarly arranged on both the upstream side and the downstream side of the detection coil 31 (231, 331).
  • the pop-out detection unit 32 (232, 332) is arranged in a conductive state, and when the continuity is interrupted, the pop-out portion Wa is detected.
  • the present invention is not limited to this.
  • the pop-out detection unit when the pop-out detection unit is deformed (displaced) due to contact with the pop-out portion Wa, and the terminal arranged separately from the pop-out detection unit and the pop-out detection unit come into contact with each other and become conductive, the pop-out detection unit pops out. It may be configured to detect a partial Wa. That is, the protruding portion Wa may be detected based on the occurrence of continuity (turned on) rather than the case where the continuity is cut off (turned off).
  • each of the first portion and the second portion of the pop-out detection unit is arranged in a state of being in contact with and conducting a terminal or the like separately arranged from the first portion and the second portion, and pop-out. It may be configured to detect the protruding portion Wa when the continuity is cut off by the contact with the portion Wa. Further, it may be configured to detect the contact between the pop-out detection unit and the pop-out portion Wa based on the fact that the displacement of the pop-out detection unit is detected by a sensor such as an encoder or a potentiometer.
  • the pop-out detection unit 32 (232, 332) is an example of a bent plate-shaped conductor, but the present invention is not limited to this.
  • the pop-out detection unit may be configured by a rod-shaped (wire-shaped) conductor.
  • the pop-out detection unit 32 (232, 332) is elastically deformed by contact with the pop-out portion Wa, but the present invention is not limited to this.
  • the pop-out detection unit may be provided with a movable portion such as a hinge, and the movable portion may be configured to operate by contact with the pop-out portion Wa.
  • the plate-shaped conductor is formed in each of the first portion 32a (232a, 332a) and the second portion 32b (232b, 332b) of the pop-out detection unit 32 (232, 332).
  • the end portion has a contact surface 32N further bent
  • the present invention is not limited to this.
  • the first portion and the second portion may be configured to be in contact with each other at an end portion having no contact surface to conduct conduction.
  • the connecting surface may be provided by welding instead of being bent.
  • the pop-out detection unit 32 (232, 332) is arranged so that the detection unit separation distance D2 is equal to or less than the coil separation distance D1.
  • the pop-out detection unit may be arranged so that the detection unit separation distance D2 is larger than the coil separation distance D1.
  • the detection unit separation distance D2 is made larger than the coil separation distance D1 to detect the pop-out portion Wa. You may do it.
  • the detection coil 31 (231, 331) surrounds the wire rope W by the first detection coil 31a (231a, 331a) and the second detection coil 31b (231b, 331b).
  • the present invention is not limited to this.
  • one detection coil may be configured to surround the wire rope. That is, the detection coil may be configured by the conductor of the flexible substrate, and the flexible substrate may be arranged so as to be wound around the wire rope.
  • the first detection coil 31a (231a, 331a) and the second detection coil 31b (231b, 331b) are configured as independent saddle-shaped coils, and the first detection coil is formed.
  • the present invention is not limited to this.
  • one magnetic flux signal may be acquired by connecting two saddle-shaped coils, a first detection coil and a second detection coil.
  • the first detection coil and the second detection coil it may be configured to be wound along the extending direction of the wire rope W as one solenoid coil instead of the saddle-shaped coil. That is, one solenoid coil is formed by providing a terminal portion for each of the first detection coil and the second detection coil and connecting the terminal portion of the first detection coil and the terminal portion of the second detection coil. It may be.
  • the magnetic flux of the wire rope W in a state where the magnetic field is prepared in advance by the magnetic field application unit 20 is excited and detected but the present invention is not limited to this. ..
  • the magnetic flux may be detected without adjusting the magnetic field without providing the magnetic field application unit 20.
  • the detection coil may be configured to detect the leakage magnetic flux from the outer surface of the wire rope W.
  • the wire rope inspection device 101 may be configured to notify the inspection worker of the detection of the protruding portion Wa. Further, by providing a storage unit, information indicating that the protruding portion has been detected may be stored.
  • a position information acquisition sensor for acquiring the position information of the wire rope, the information indicating that the protruding portion Wa is detected and the position information indicating the position of the detected protruding portion are combined with the outside of the device. It may be configured to output to (elevator 103 and processing device 102).
  • the detection coil 31 (231, 331) is shown as an example of detecting the magnetic flux of the wire rope W provided in the elevator 103, but the present invention is not limited to this.
  • the detection coil may be configured to detect the magnetic flux of a wire rope provided in a device other than an elevator such as a crane device. Further, it may be configured to detect the magnetic flux with respect to the wire rope alone.
  • the wire rope inspection device 101 (201, 301) is installed (arranged) on the wire rope W of the elevator 103 is shown, but the present invention is not limited to this. ..
  • the wire rope may be inspected (detection of magnetic flux) while being gripped by the inspection worker.
  • the detection coil 31 connected by the connection portion 33a and the pop-out detection unit 32 move integrally, but the present invention shows the present invention. Not limited to this.
  • the pop-out detection unit may be configured not to move. That is, when the pop-out portion Wa is detected, the pop-out detection unit may not be moved and only the detection unit may be moved (evacuated).
  • the detection coils 31 (231, 331) are provided in each of the plurality (4) wire ropes W is shown, but the present invention is not limited to this.
  • the detection coil may be configured to detect the magnetic flux of 1 or more and 3 or less wire ropes, or may be configured to detect the magnetic flux of 5 or more wire ropes. .. Further, the magnetic flux of a plurality of wire ropes may be detected by one detection coil.
  • the pop-out detection unit 32 (232, 332) is configured to commonly detect the pop-out portion Wa from a plurality of (four) wire ropes W.
  • the present invention is not limited to this.
  • the pop-out portion Wa in each of the plurality of wire ropes may be separately detected.
  • the protruding portion Wa may be detected by detecting the interruption of continuity.
  • the exciting portion may be configured to be driven in a direction away from the wire rope W.
  • the magnetic field application portion may be driven in a direction away from the wire rope W.
  • the main body portion including the detection coil, the exciting portion (excitation coil), and the magnetic field applying portion may be driven in a direction away from the wire rope W. That is, the detection coil, the exciting portion (excitation coil), and the magnetic field applying portion may be integrally driven by separating the main body portion from the wire rope W.
  • the magnetic field application unit 20a and the magnetic field application unit 20b provided so as to face each other with the wire rope W interposed therebetween are arranged so that the N poles are directed toward the wire rope W side, respectively.
  • the present invention is not limited to this.
  • the two magnetic field application portions may be arranged so that the north pole and the south pole are directed toward the wire rope W, respectively.
  • the two magnetic field application portions may be arranged so that the N pole and the S pole are arranged along the extending direction of the wire rope W, not in the directions facing each other. In that case, the two magnetic field application portions may have the same orientation or different orientations.
  • the magnetic field applying portion may be arranged so as to apply the magnetic field in a direction obliquely deviated from a direction parallel to the extending direction of the wire rope W. Further, one magnetic field application portion may be arranged on one side in the direction intersecting the extending direction of the wire rope W.
  • the magnetic field application unit 20 is configured by a permanent magnet
  • the present invention is not limited to this.
  • the magnetic field application unit may be configured by an electromagnet.
  • the information indicates that the pop-out portion Wa from the processing unit 51 is detected.
  • An example is shown in which an elevator stop command signal is output to stop the operation of the elevator 103, but the present invention is not limited to this.
  • the operation of the elevator 103 may not be stopped even when the protruding portion Wa is detected.
  • An exciting part that applies a magnetic field to the wire rope to be inspected
  • a detection coil that detects the magnetic flux of the wire rope while moving relative to the wire rope to which a magnetic field is applied by the exciting portion.
  • a pop-out detection unit that detects a pop-out portion from at least a part of the outer surface of the wire rope
  • a wire rope inspection device including a drive unit that moves the detection coil in a direction away from the wire rope before the protrusion portion comes into contact with the detection coil based on a detection signal from the protrusion detection unit. ..
  • the pop-out detection unit includes a first portion arranged in a direction orthogonal to the direction in which the wire rope extends, and the first portion on a side opposite to the side on which the first portion is arranged with respect to the wire rope. Including a second portion arranged so as to surround the wire rope together with Item 2.
  • the wire rope inspection device according to item 2, wherein each of the first portion and the second portion is configured so that the separation distance of the detection unit can be changed.
  • the first portion and the second portion are provided on the upstream side of the wire rope with respect to the detection coil in the extending direction of the wire rope, and by contacting with the protruding portion of the wire rope, the said portion. It is configured to detect the protruding part, Based on the detection signal caused by at least one of the first portion and the second portion coming into contact with the pop-out portion, the drive unit presses the detection coil before the pop-out portion comes into contact with the detection coil.
  • the wire rope inspection apparatus according to item 3, which is configured to move in a direction away from the wire rope.
  • the first portion and the second portion are bent plate-shaped conductors, which are arranged in a state of being electrically conductive in contact with each other while surrounding the wire rope.
  • the conduction between the first portion and the second portion is cut off due to the displacement of at least one of the first portion and the second portion due to the contact with the pop-out portion.
  • the wire rope inspection device according to item 3 or 4 which is configured to detect the protruding portion in the case of
  • the pop-out detection unit is displaced from the position due to elastic deformation of at least one of the first portion and the second portion due to contact with the pop-out portion, so that the first portion and the second portion Item 5.
  • the wire rope inspection device which is configured to detect the protruding portion when the continuity of the wire rope is cut off.
  • the first portion and the second portion have a planar contact surface in which the end portions of the plate-shaped conductors are further bent and face-to-face contact with each other.
  • the pop-out detection unit is configured such that the first portion and the second portion are electrically connected to each other by surface contact between the contact surfaces of the first portion and the second portion.
  • the pop-out detection unit is a coil in which the detection unit separation distance, which is the separation distance from the wire rope, is the separation distance between the detection coil and the wire rope.
  • the detection unit separation distance which is the separation distance from the wire rope
  • the separation distance between the detection coil and the wire rope is the separation distance between the detection coil and the wire rope.
  • the detection coil includes a first detection coil arranged in a direction orthogonal to the direction in which the wire rope extends, and the first detection coil on a side opposite to the side on which the first detection coil is arranged with respect to the wire rope. Including a second detection coil arranged so as to surround the wire rope together with the detection coil.
  • the drive unit is configured to move each of the first detection coil and the second detection coil in a direction away from the wire rope based on the detection signal from the pop-out detection unit.
  • a magnetic field application unit for applying a magnetic field to the wire rope in advance to adjust the direction of magnetization of the wire rope.
  • the first detection coil and the second detection coil are configured to detect the magnetic flux of the wire rope after a magnetic field is applied in advance by the magnetic field application unit, and are configured along the extending direction of the wire rope. It is provided to be wound around
  • the drive unit receives each of the first detection coil and the second detection coil provided so as to be wound along the extending direction of the wire rope based on the detection signal from the pop-out detection unit.
  • Item 9 The wire rope inspection apparatus according to item 9, which is configured to move in a direction away from the wire rope.
  • the detection coil is configured to detect the magnetic flux of the wire rope provided in the elevator.
  • the drive unit is configured to increase the coil separation distance, which is the distance between the detection coil and the wire rope, during normal operation of the elevator, and during inspection operation at a lower operating speed than during normal operation.
  • the detection coil is moved so that the coil separation distance is smaller than that during normal operation, and when the protrusion is detected based on the detection signal from the protrusion detection unit, the coil separation is achieved.
  • the wire rope inspection apparatus according to any one of items 1 to 11, which is configured to increase the distance.
  • a detection coil main body including a connection portion for integrally connecting the detection coil and the pop-out detection portion is provided.
  • the drive unit moves the detection coil main body unit based on the detection signal from the pop-out detection unit, thereby integrally moving the detection coil connected by the connection unit and the pop-out detection unit.
  • the wire rope inspection apparatus according to any one of items 1 to 12, which is configured to cause the wire rope to be inspected.
  • the pop-out detection unit is configured separately from the detection coil.
  • Item 2. The item 1 to 12, wherein the drive unit is configured to move each of the detection coil and the pop-out detection unit based on the detection signal from the pop-out detection unit. Wire rope inspection equipment.
  • the position of the detection coil is changed to either a normal operation position where the coil separation distance, which is the distance between the detection coil and the wire rope, is large, or an inspection operation position where the coil separation distance is smaller than the normal operation position. Further equipped with a repositioning lever operated to The drive unit is in a state where the position of the detection coil is moved from the normal operation position to the inspection operation position by the operation of the position change lever, and the drive unit is based on the detection signal from the pop-out detection unit.
  • Item 1 of item 1 to 14 which is configured to move the detection coil in a direction away from the wire rope by changing the position of the detection coil from the inspection operation position to the normal operation position.
  • the wire rope includes a plurality of the wire ropes.
  • the detection coil is provided on each of the plurality of wire ropes, and the detection coil is provided on each of the plurality of wire ropes.
  • the pop-out detection unit is configured to commonly detect the pop-out portion of each of the plurality of wire ropes.
  • the drive unit has the plurality of wires based on the detection signal from the protrusion detection unit due to the detection of the protrusion portion from the outer surface of at least one of the plurality of wire ropes.
  • the wire rope inspection apparatus according to any one of items 1 to 15, which is configured to integrally move all of the detection coils provided on each of the ropes in a direction away from the wire rope.
  • An exciting part that applies a magnetic field to the wire rope to be inspected, and a detection coil that detects the magnetic flux of the wire rope while moving relative to the wire rope to which the magnetic field is applied by the exciting part.
  • the detection coil Based on the pop-out detection unit that detects the pop-out portion from at least a part of the outer surface of the wire rope and the detection signal from the pop-out detection unit, the detection coil is before the pop-out portion comes into contact with the detection coil.
  • a wire rope inspection device comprising a drive unit for moving the wire in a direction away from the wire rope.
  • a processing device configured to determine the presence or absence of an abnormality in the wire rope based on a signal from the detection coil is provided. The wire rope inspection device is configured to output information indicating that the pop-out portion has been detected to the processing device based on the detection signal from the pop-out detection unit.

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Abstract

L'invention concerne un dispositif d'inspection de câble métallique (101) comprenant : une unité d'excitation (10) qui applique un champ magnétique à un câble métallique (W) ; une bobine de détection (31) qui détecte le flux magnétique du câble métallique (W) tout en se déplaçant par rapport au câble métallique (W) ; une unité de détection de saillie (32) qui détecte une section en saillie (Wa) à partir d'au moins une partie de la surface extérieure du câble métallique (W) ; et une unité d'entraînement (40) qui déplace la bobine de détection (31) dans une direction s'éloignant du câble métallique (W) avant que la section en saillie (Wa) vienne en contact avec la bobine de détection (31) sur la base du signal de détection provenant de l'unité de détection de saillie (32).
PCT/JP2021/026501 2020-12-04 2021-07-14 Dispositif d'inspection de câble métallique et système d'inspection de câble métallique WO2022118494A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2022566787A JP7448037B2 (ja) 2020-12-04 2021-10-29 ワイヤロープ検査装置、および、ワイヤロープ検査システム
PCT/JP2021/040084 WO2022118582A1 (fr) 2020-12-04 2021-10-29 Dispositif d'inspection de câble métallique et système d'inspection de câble métallique

Applications Claiming Priority (2)

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JP2020-201615 2020-12-04
JP2020201615 2020-12-04

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WO2022118494A1 true WO2022118494A1 (fr) 2022-06-09

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09290973A (ja) * 1996-04-25 1997-11-11 Mitsubishi Denki Bill Techno Service Kk ロープテスタ支持用治具
JP2006071603A (ja) * 2004-09-06 2006-03-16 Toshiba Elevator Co Ltd ロープ探傷装置
JP2009091127A (ja) * 2007-10-10 2009-04-30 Mitsubishi Electric Building Techno Service Co Ltd ロープ点検方法
WO2009063548A1 (fr) * 2007-11-13 2009-05-22 Mitsubishi Electric Corporation Testeur de câble métallique
JP2009220962A (ja) * 2008-03-17 2009-10-01 Toshiba Elevator Co Ltd エレベータ用ロープ監視装置
JP2012153488A (ja) * 2011-01-26 2012-08-16 Mitsubishi Electric Corp ロープ探傷装置の取付器具
US20150329321A1 (en) * 2013-02-22 2015-11-19 Kone Corporation Method and arrangement for monitoring the safety of a counterweighted elevator
JP2019015656A (ja) * 2017-07-10 2019-01-31 株式会社島津製作所 磁性体の検査装置

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09290973A (ja) * 1996-04-25 1997-11-11 Mitsubishi Denki Bill Techno Service Kk ロープテスタ支持用治具
JP2006071603A (ja) * 2004-09-06 2006-03-16 Toshiba Elevator Co Ltd ロープ探傷装置
JP2009091127A (ja) * 2007-10-10 2009-04-30 Mitsubishi Electric Building Techno Service Co Ltd ロープ点検方法
WO2009063548A1 (fr) * 2007-11-13 2009-05-22 Mitsubishi Electric Corporation Testeur de câble métallique
JP2009220962A (ja) * 2008-03-17 2009-10-01 Toshiba Elevator Co Ltd エレベータ用ロープ監視装置
JP2012153488A (ja) * 2011-01-26 2012-08-16 Mitsubishi Electric Corp ロープ探傷装置の取付器具
US20150329321A1 (en) * 2013-02-22 2015-11-19 Kone Corporation Method and arrangement for monitoring the safety of a counterweighted elevator
JP2019015656A (ja) * 2017-07-10 2019-01-31 株式会社島津製作所 磁性体の検査装置

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