WO2023281590A1 - 測定方法及び測定用装置 - Google Patents
測定方法及び測定用装置 Download PDFInfo
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- WO2023281590A1 WO2023281590A1 PCT/JP2021/025332 JP2021025332W WO2023281590A1 WO 2023281590 A1 WO2023281590 A1 WO 2023281590A1 JP 2021025332 W JP2021025332 W JP 2021025332W WO 2023281590 A1 WO2023281590 A1 WO 2023281590A1
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- WIPO (PCT)
- Prior art keywords
- fixing
- connecting device
- measuring
- rope
- ropes
- Prior art date
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- 238000000034 method Methods 0.000 title claims description 26
- 238000005259 measurement Methods 0.000 title claims description 8
- 238000001514 detection method Methods 0.000 claims abstract description 22
- 230000008878 coupling Effects 0.000 claims description 48
- 238000010168 coupling process Methods 0.000 claims description 48
- 238000005859 coupling reaction Methods 0.000 claims description 48
- 238000006073 displacement reaction Methods 0.000 claims description 29
- 230000000903 blocking effect Effects 0.000 claims description 12
- 238000000691 measurement method Methods 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 28
- 238000010586 diagram Methods 0.000 description 15
- 238000009434 installation Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
- B66B7/1207—Checking means
- B66B7/1215—Checking means specially adapted for ropes or cables
-
- 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
- B66B5/12—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions in case of rope or cable slack
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
Definitions
- the present disclosure relates to a method for measuring rope tension and a measuring device used in the method.
- Patent Document 1 describes a device for measuring the frequency of vibration generated in a rope.
- the device described in Patent Literature 1 includes a photographing device for photographing a rope.
- the frequency of vibration generated in the rope is measured based on the moving image captured by the imaging device. Also, from the measured frequency, the rope tension is determined.
- the elevator car is suspended from the hoistway by multiple ropes.
- a coupling device may be attached to the plurality of ropes.
- the connecting device is attached to the plurality of ropes so as to sandwich the plurality of ropes from both sides.
- An object of the present disclosure is to provide a measuring method that can shorten the time required to measure the rope tension.
- Another object of the present disclosure is to provide a measuring device for reducing the time required to measure rope tension.
- the measurement method is a method of measuring the tension of ropes in an elevator device in which a connecting device is attached to a plurality of ropes that suspend a car so as to sandwich the plurality of ropes from both sides.
- the method includes a first detection step of detecting the posture of the coupling device, and after the first detection step, a fixing device is attached to the coupling device, and a fixing member of a hoistway in which the car moves or a moving body that moves in the hoistway.
- a first fixing step of fixing the connecting device to one of the fixing members via the fixing device a second detecting step of detecting the orientation of the connecting device after the first fixing step; a first determination step of determining whether or not a change in the attitude of the connecting device is within an allowable range based on the attitude and the attitude detected in the second detecting step; if determined to be, measuring the tension of the ropes included in the plurality of ropes.
- the measurement device is an elevator device in which a connecting device is attached to a plurality of ropes that suspend a car so that the plurality of ropes are sandwiched from both sides. It is a device.
- the measuring device includes a sensor for detecting the attitude of the connecting device, a first mounting member attached to the connecting device, and a fixed member of the hoistway in which the car moves or a fixed member of the moving body that moves in the hoistway.
- An attached second mounting member and an adjustment device provided on the first mounting member and the second mounting member.
- the adjustment device includes a displacement mechanism for rotating the first mounting member about a first axis and a second axis orthogonal to the first axis, and a blocking mechanism for blocking displacement of the first mounting member by the displacement mechanism. , provided.
- the time required to measure the rope tension can be shortened.
- FIG. 3 is a view showing a BB cross section of FIG. 2
- FIG. 5 is a diagram showing an example of frequencies measured by vibrating a rope
- 4 is a flow chart showing a method of measuring tension in Embodiment 1.
- FIG. It is a figure for demonstrating the measuring method of tension
- FIG. 11 is a view showing the EE section of FIG. 10;
- FIG. 4 is a diagram showing another example of the measuring device 21;
- FIG. 13 is a diagram showing a cross section taken along line FF of FIG. 12;
- FIG. 1 is a diagram showing an example of an elevator device.
- the elevator system comprises a car 1 and a counterweight 2.
- the car 1 moves up and down in the hoistway 3 .
- a counterweight 2 moves up and down the hoistway 3 .
- the car 1 and the counterweight 2 are examples of moving objects moving in the hoistway 3 .
- the hoistway 3 is a vertically extending space formed in the building.
- a car 1 and a counterweight 2 are suspended in a hoistway 3 by ropes 4 .
- the rope 4 is, for example, a wire rope.
- FIG. 1 shows an example of a 1:1 roping elevator system.
- FIG. 1 shows an example in which a hoisting machine 5 and a control device 6 are provided in a machine room 7 above the hoistway 3 .
- the hoisting machine 5 and the control device 6 may be provided in the hoistway 3 .
- the hoisting machine 5 may be provided at the top of the hoistway 3 or may be provided in the pit of the hoistway 3 .
- the car 1 includes a car room 8, a door 9, a car frame 10, and a guide member 11.
- the cab 8 forms a space for passengers to board.
- Door 9 opens and closes an entrance formed in car room 8 .
- the car frame 10 supports the cab 8 .
- the car frame 10 is arranged so as to surround the upper, lower, left and right sides of the car room 8 .
- the guide member 11 is provided on the car frame 10 .
- a pair of guide rails 12 for the car 1 is provided in the hoistway 3 .
- the guide rail 12 is arranged vertically from the pit to the top of the hoistway 3 .
- the movement of the car 1 is guided by the guide member 11 facing or coming into contact with the guide rail 12 .
- the guide member 11 is, for example, a guide shoe.
- the guide member 11 may be a guide roller.
- the counterweight 2 includes an adjustment weight 13, a weight frame 14, and a guide member 15.
- the adjustment weight 13 is a weight for adjusting the overall weight of the counterweight 2 .
- the adjustment weight 13 is supported by the weight frame 14 .
- the weight frame 14 is arranged so as to surround the upper, lower, right, and left sides of the adjustment weight 13 .
- the guide member 15 is provided on the weight frame 14 .
- a pair of guide rails 16 for the counterweight 2 is provided in the hoistway 3 .
- the guide rail 16 is arranged vertically from the pit to the top of the hoistway 3 .
- the movement of the counterweight 2 is guided by the guide member 15 facing or coming into contact with the guide rail 16 .
- the guide member 15 is, for example, a guide shoe.
- the guide member 15 may be a guide roller.
- FIG. 2 is an enlarged view of part A in FIG.
- FIG. 3 is a diagram showing a BB section of FIG.
- the car 1 is suspended by multiple ropes 4 .
- Each rope 4 is connected to the car frame 10 via a rope shackle 17 .
- a coupling device 18 is attached to the plurality of ropes 4 .
- the coupling device 18 comprises two pressing members 19 and 20, as shown in FIG.
- the connecting device 18 is attached to the multiple ropes 4 by sandwiching the multiple ropes 4 from both sides with the pressing members 19 and 20 .
- a plurality of bolts are preferably used to fix the pressing members 19 and 20 .
- a groove 19 a for arranging the rope 4 is formed in the pressing member 19 .
- the pressing member 20 is formed with a groove 20a for arranging the rope 4 thereon.
- Upward facing surface 18a of coupling device 18 is perpendicular to grooves 19a and 20a.
- FIG. 4 is a diagram showing an example of frequencies measured by vibrating the rope 4. As shown in FIG. The solid line shown in FIG. 4 indicates an example of frequencies measured when the middle rope 4 of the five ropes shown in FIG. 2 is vibrated. In the following, when it is necessary to distinguish the rope 4 from other ropes 4, the code 4 is replaced with the code 4a.
- FIG. 5 is a flow chart showing a tension measuring method according to the first embodiment.
- 6 to 9 are diagrams for explaining the method of measuring tension.
- the measuring device 21 is equipped with a sensor 22 and a fixing device 23 .
- the maintenance staff first moves from the platform to the top of car 1.
- the attitude of the coupling device 18 attached to the rope 4 is detected (S101).
- S101 the attitude of the coupling device 18 attached to the rope 4 is detected (S101).
- S101 the attitude of the coupling device 18 attached to the rope 4 is detected (S101).
- a sensor 22 for detecting the orientation of the connecting device 18 is placed on the surface 18a of the connecting device 18.
- FIG. Sensor 22 is, for example, a spirit level.
- the sensor 22 detects the mounting angle ⁇ of the connecting device 18 with respect to the horizontal plane as the posture of the connecting device 18 .
- the sensor 22 detects the angle of the surface 18a with respect to the horizontal plane.
- FIG. 7 is a diagram corresponding to FIG.
- FIG. 8 is a diagram corresponding to FIG.
- the fixing device 23 includes a mounting member 24, a mounting member 25, and an adjusting device 26.
- a mounting member 24 is attached to the coupling device 18 .
- the mounting member 24 is a rectangular parallelepiped member.
- the attachment member 24 is attached to the coupling device 18 using a bolt 27 passed through the long hole 24a while in surface contact with the surface 18a.
- the attachment member 24 may be attached to the coupling device 18 using clamps, magnets, a snap-fitting mechanism, or the like.
- the maintenance worker attaches the fixing device 23 to the fixing member 28 (S103).
- the fixed member 28 is a member fixed to the hoistway 3 .
- the fixed member 28 may be a building beam, a guide rail 12 , or a bracket fixed to the guide rail 12 .
- the fixing member 28 is a member provided on the car 1 .
- the securing member 28 may be the car frame 10 , the cab 8 , or a bracket extending from the cab 8 .
- the maintenance worker attaches the mounting member 25 to the fixing member 28 while adjusting the position and orientation of the mounting member 25 with the adjusting device 26 .
- the attachment member 25 may be attached to the fixed member 28 using clamps, magnets, a fitting mechanism, or the like.
- the adjusting device 26 is provided between the mounting member 24 and the mounting member 25 .
- the adjustment device 26 includes a displacement mechanism 29 for rotating the mounting member 24 about a plurality of axes, and a blocking mechanism 30 for blocking displacement of the mounting member 24 by the displacement mechanism 29 .
- the displacement mechanism 29 can rotate around each of the X-axis, Y-axis, and Z-axis shown in FIGS.
- the X-axis is orthogonal to each of the Y-axis and Z-axis.
- the Y-axis is orthogonal to the Z-axis.
- the maintenance personnel After attaching the mounting member 25 to the fixing member 28 , the maintenance personnel operates the blocking mechanism 30 to fix the orientation of the mounting member 24 with respect to the mounting member 25 . Thereby, the connecting device 18 is fixed to the fixing member 28 via the fixing device 23 .
- step shown in S103 may be performed before the step shown in S102. That is, the mounting member 25 may be attached to the fixed member 28 before the mounting member 24 is attached to the connecting device 18 .
- the step shown in S103 may be performed in parallel with the step shown in S102. That is, the maintenance personnel may attach the mounting member 24 to the connecting device 18 while attaching the mounting member 25 to the fixing member 28 .
- the maintenance staff uses the sensor 22 to detect the attitude of the coupling device 18 again (S104).
- the detection step shown in S104 is the same as the detection step shown in S101.
- FIG. 9 shows an example in which the installation angle of the coupling device 18 is increased by ⁇ before and after the fixing device 23 is attached.
- a tensile force or a compressive force acts on the rope 4, and the tension of the rope 4 changes. Therefore, if the installation angle of the coupling device 18 changes significantly, the tension of the rope 4 cannot be measured accurately.
- the maintenance personnel determines whether or not the change in the posture of the coupling device 18 is within the allowable range (S105).
- the determination step shown in S105 is performed based on the posture of the coupling device 18 detected in S101 and the posture of the coupling device 18 detected in S104.
- the permissible range is set in advance. For example, if the change ⁇ in the installation angle of the coupling device 18 is not within the allowable range, the determination in S105 is No. If the change ⁇ is within the allowable range, the determination in S105 is Yes.
- the maintenance personnel re-fixes the fixing device 23 and detects the attitude of the connecting device 18 again. Specifically, when the maintenance worker determines No in S105, the fixing device 23 is removed from the connecting device 18 (S106). In the removing step shown in S106, the fixing device 23 may be removed from both the connecting device 18 and the fixing member 28. FIG. After that, the maintenance person repeats the procedure shown in S101 to S105.
- the maintenance personnel measures the tension of the rope 4 (S107). Specifically, in the measurement step shown in S ⁇ b>107 , the maintenance worker first vibrates the rope 4 by applying an external force to the rope 4 . Maintenance personnel measure the frequency of vibration generated in the rope 4 and obtain the tension of the rope 4 from the measured frequency.
- the connecting device 18 is fixed to the fixing member 28 via the fixing device 23 when measuring the frequency of vibration generated in the rope 4 . Therefore, the vibration generated in the rope 4 can be suppressed from being transmitted to the other ropes 4 via the coupling device 18 . In addition, it is possible to suppress transmission of vibrations generated in other ropes 4 to the ropes through the coupling device 18 .
- the dashed line shown in FIG. 4 indicates the frequency of vibration generated in the rope 4a while the coupling device 18 is fixed to the fixing member 28 via the fixing device 23.
- noise during measurement can be greatly reduced. Therefore, it is not necessary to remove the coupling device 18 from the rope 4 when measuring the tension of the rope 4 .
- the time required to measure the tension of the rope 4 can be shortened.
- FIG. 10 is a diagram showing another example of the measuring device 21.
- FIG. FIG. 11 is a diagram showing the EE section of FIG.
- FIG. 10 is a diagram corresponding to FIG.
- FIG. 11 is a diagram corresponding to FIG.
- the displacement mechanism 29 and the blocking mechanism 30 of the adjustment device 26 are different from the above example.
- the adjusting device 26 shown in FIGS. 10 and 11 includes an adjusting member 31, an adjusting member 32, a shaft 33 and a shaft 34 as the displacement mechanism 29. As shown in FIG.
- the adjustment device 26 includes a bolt 35 and a bolt 36 as the blocking mechanism 30 .
- the adjusting member 31 is a block-shaped member.
- the adjusting member 31 is provided on the mounting member 25 .
- the adjustment member 31 is not displaced with respect to the mounting member 25 .
- the adjusting member 32 is a block-shaped member.
- the adjusting member 32 is provided on the adjusting member 31 via a shaft 33 .
- the shaft 33 is provided on the adjusting member 31 .
- the shaft 33 is not displaced with respect to the adjustment member 31 .
- Axis 33 is arranged along the X-axis.
- the adjustment member 32 is displaceable about the axis 33 with respect to the adjustment member 31 .
- the mounting member 24 is provided on the adjusting member 32 via the shaft 34 .
- a shaft 34 is provided on the adjustment member 32 .
- Axle 34 is not displaced relative to adjustment member 32 .
- Axis 34 is arranged along the Y-axis.
- the mounting member 24 is displaceable about an axis 34 with respect to the adjusting member 32 .
- the adjusting device 26 rotates the mounting member 24 with respect to the mounting member 25 about the X-axis and the Y-axis.
- the bolt 35 is attached to a threaded hole formed in the adjusting member 32 .
- a tip of the bolt 35 faces the shaft 33 . Therefore, when the bolt 35 is screwed in, the tip of the bolt 35 is pressed against the shaft 33 . This prevents the adjustment member 32 from being displaced with respect to the adjustment member 31 .
- bolts 36 are attached to threaded holes formed in attachment member 24 .
- a tip of the bolt 36 faces the shaft 34 . Therefore, when the bolt 36 is screwed in, the tip of the bolt 36 is pressed against the shaft 34 . This prevents the mounting member 24 from being displaced with respect to the adjusting member 32 .
- the measuring device 21 can be realized with an inexpensive configuration.
- FIG. 12 is a diagram showing another example of the measuring device 21.
- FIG. FIG. 13 is a diagram showing the FF section of FIG.
- the sensor 22 is different from the example described above.
- the measuring device 21 shown in FIGS. 12 and 13 includes two laser displacement gauges 22a and 22b as sensors 22.
- the laser displacement meter 22a is attached to the fixing member 37 arranged above the connecting device 18 in the detection step shown in S101.
- the laser displacement meter 22b is attached to the fixing member 38 arranged above the coupling device 18 in the detection step shown in S101.
- the fixed members 37 and 38 are members fixed to the hoistway 3 or members provided in the car 1 .
- the fixing member 37 and the fixing member 38 may be the same member.
- the laser displacement gauge 22a irradiates the surface 18a of the connecting device 18 with light from above.
- the position where the light from the laser displacement meter 22a is irradiated is indicated by G.
- FIG. 13 shows a preferred example in which one end of the surface 18a is irradiated with light from the laser displacement gauge 22a.
- the laser displacement gauge 22b irradiates the surface 18a of the connecting device 18 with light from above.
- the position where the light from the laser displacement meter 22b is irradiated is indicated by symbol H.
- FIG. 13 shows a preferred example in which the light from the laser displacement gauge 22b is applied to the other end of the surface 18a.
- the Y-axis coordinate of position G and the Y-axis coordinate of position H are the same.
- the ropes 4 are arranged along the X axis.
- the maintenance personnel determines in S105 whether or not the change in the posture of the coupling device 18 is within the allowable range.
- the determination step shown in S105 is performed based on the results detected by both the laser displacement gauges 22a and 22b in S101 and the results detected by both the laser displacement gauges 22a and 22b in S104.
- a dial gauge or a steel rule may be used as the sensor 22.
- FIG. 1 shows an example in which a coupling device 39 similar to the coupling device 18 is provided immediately above the weight frame 14 .
- the fixing member 28 to which the fixing device 23 is attached may be the guide rail 16 or a bracket fixed to the guide rail 16 .
- the fixing member 28 may be a member provided in the counterweight 2 .
- the fixing member 28 may be the adjustment weight 13 , the weight frame 14 , or a bracket extending from the weight frame 14 .
- FIG. 1 shows a 1:1 roping elevator system.
- a device similar to coupling device 18 is also used in a 2:1 roping elevator system.
- the maintenance personnel may measure the tension of the rope 4 by using the measuring device 21 for the device in a manner similar to that described above.
- the fixing member 28 may be a building beam, a guide rail 12 , a bracket fixed to the guide rail 12 , a guide rail 16 , or a bracket fixed to the guide rail 16 .
- the measurement method according to the present disclosure can be used when measuring the tension of a rope to which a coupling device is attached.
Landscapes
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
Abstract
Description
図1は、エレベーター装置の例を示す図である。エレベーター装置は、かご1及びつり合いおもり2を備える。かご1は、昇降路3を上下に移動する。つり合いおもり2は、昇降路3を上下に移動する。かご1及びつり合いおもり2は、昇降路3を移動する移動体の例である。昇降路3は、建物に形成された上下に延びる空間である。かご1及びつり合いおもり2は、ロープ4によって昇降路3に吊り下げられる。ロープ4は、例えばワイヤロープである。図1は、1:1ローピング方式のエレベーター装置を一例として示す。
Claims (6)
- かごを吊り下げる複数のロープに、前記複数のロープを両側から挟み込むように連結装置が取り付けられたエレベーター装置において、ロープの張力を測定する方法であって、
前記連結装置の姿勢を検出する第1検出工程と、
前記第1検出工程の後、前記連結装置に固定装置を取り付け、前記かごが移動する昇降路の固定部材又は前記昇降路を移動する移動体の固定部材の一方に、前記固定装置を介して前記連結装置を固定する第1固定工程と、
前記第1固定工程の後、前記連結装置の姿勢を検出する第2検出工程と、
前記第1検出工程で検出された姿勢及び前記第2検出工程で検出された姿勢に基づいて、前記連結装置の姿勢の変化が許容範囲内であるか否かを判定する第1判定工程と、
前記連結装置の姿勢の変化が前記許容範囲内であると判定されると、前記複数のロープに含まれるロープの張力を測定する測定工程と、
を備えた測定方法。 - 前記連結装置の姿勢の変化が前記許容範囲内であると前記第1判定工程で判定されなければ、前記連結装置から前記固定装置を外す取外工程と、
前記取外工程の後、前記連結装置の姿勢を検出する第3検出工程と、
前記第3検出工程の後、前記一方に前記固定装置を介して前記連結装置を固定する第2固定工程と、
前記第2固定工程の後、前記連結装置の姿勢を検出する第4検出工程と、
前記第3検出工程で検出された姿勢及び前記第4検出工程で検出された姿勢に基づいて、前記連結装置の姿勢の変化が許容範囲内であるか否かを判定する第2判定工程と、
を更に備えた請求項1に記載の測定方法。 - 前記連結装置の姿勢として、水平面に対する前記連結装置の取付角度が検出される請求項1又は請求項2に記載の測定方法。
- かごを吊り下げる複数のロープに、前記複数のロープを両側から挟み込むように連結装置が取り付けられたエレベーター装置において、ロープの張力を測定する際に使用される測定用装置であって、
前記連結装置の姿勢を検出するためのセンサと、
前記連結装置に取り付けられる第1取付部材と、
前記かごが移動する昇降路の固定部材又は前記昇降路を移動する移動体の固定部材に取り付けられる第2取付部材と、
前記第1取付部材及び前記第2取付部材に設けられた調整装置と、
を備え、
前記調整装置は、
第1軸及び前記第1軸に直交する第2軸を中心に前記第1取付部材を回転させるための変位機構と、
前記変位機構による前記第1取付部材の変位を阻止するための阻止機構と、
を備えた測定用装置。 - 前記変位機構は、前記第1軸及び前記第2軸のそれぞれに直交する第3軸を中心に前記第1取付部材を回転させる請求項4に記載の測定用装置。
- 前記センサは、前記連結装置の姿勢として、水平面に対する前記連結装置の取付角度を検出する請求項4又は請求項5に記載の測定用装置。
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JPH07209109A (ja) * | 1994-01-11 | 1995-08-11 | Mitsubishi Denki Bill Techno Service Kk | 張力測定装置 |
JP3188833B2 (ja) * | 1995-11-17 | 2001-07-16 | 三菱電機株式会社 | エレベータのロープテンション測定装置 |
JP5418307B2 (ja) * | 2010-03-04 | 2014-02-19 | 三菱電機株式会社 | エレベーターのロープテンション測定装置 |
JP7105658B2 (ja) | 2018-09-12 | 2022-07-25 | 三菱電機ビルソリューションズ株式会社 | エレベーターのロープ振動周期測定装置、ロープ振動周期測定方法、及びロープ振動周期算出プログラム |
-
2021
- 2021-07-05 JP JP2023532889A patent/JP7364129B2/ja active Active
- 2021-07-05 KR KR1020247000539A patent/KR102638079B1/ko active IP Right Grant
- 2021-07-05 WO PCT/JP2021/025332 patent/WO2023281590A1/ja active Application Filing
- 2021-07-05 CN CN202180099884.9A patent/CN117561208A/zh active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH06345357A (ja) * | 1993-06-08 | 1994-12-20 | Mitsubishi Denki Bill Techno Service Kk | 昇降機のロープテンション測定装置 |
JPH0986828A (ja) * | 1995-09-29 | 1997-03-31 | Mitsubishi Denki Bill Techno Service Kk | エレベータのロープテンション測定装置 |
DE102004029133A1 (de) * | 2004-06-17 | 2006-01-05 | TÜV Industrie Service GmbH - TÜV Rheinland Group | Kraftreduziertes Messverfahren für Traktionsantriebe, insbesondere Treibscheibenantriebe von Aufzügen |
JP2010120771A (ja) * | 2008-11-21 | 2010-06-03 | Toshiba Elevator Co Ltd | エレベータのロープテンション調整治具 |
DE102015101634A1 (de) * | 2014-02-05 | 2015-08-06 | Dekra E.V. | Messsystem und Verfahren zur Bestimmung einer relativen Seilkraftverteilung eines Aufzugs |
CN110884978A (zh) * | 2019-11-28 | 2020-03-17 | 中北大学 | 一种矿用摩擦式提升机钢丝绳张力测试装置及方法 |
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CN117561208A (zh) | 2024-02-13 |
KR102638079B1 (ko) | 2024-02-20 |
KR20240009533A (ko) | 2024-01-22 |
JPWO2023281590A1 (ja) | 2023-01-12 |
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