WO2015068322A1 - エレベータ診断装置 - Google Patents
エレベータ診断装置 Download PDFInfo
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- WO2015068322A1 WO2015068322A1 PCT/JP2014/004250 JP2014004250W WO2015068322A1 WO 2015068322 A1 WO2015068322 A1 WO 2015068322A1 JP 2014004250 W JP2014004250 W JP 2014004250W WO 2015068322 A1 WO2015068322 A1 WO 2015068322A1
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- car
- natural frequency
- vibration
- elevator
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- 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
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
Definitions
- the present invention relates to an elevator diagnostic apparatus for diagnosing deterioration of an elevator rope.
- Wire ropes used in elevators are constructed by twisting multiple steel wires (hereinafter referred to as “element wires”), and due to deterioration over time, such as fatigue and wear associated with the use of elevators, wire ropes are used.
- the wire forming the wire may become thin, leading to a decrease in the diameter of the wire rope or breakage of the wire.
- the orthogonality of the wire rope is not less than a predetermined value and that the number of broken wires is not more than a predetermined number. When a defect is found in these periodic inspections, it is determined that the wire rope has exceeded its life and is replaced.
- the present invention has been made to solve the above-described problems, and an object thereof is to provide an elevator diagnostic apparatus that detects an abnormality associated with deterioration of an elevator rope with high accuracy and early detects the rope deterioration. .
- An elevator diagnostic apparatus includes a position sensor for detecting the position of a car, a car car natural frequency calculating means for obtaining a car car natural frequency from the output of the position sensor, and a car car natural vibration.
- a car vibration pattern generating means for generating a vibration pattern for vibrating the car by a number, a vibration apparatus for vibrating the car based on the output of the car vibration pattern generating means, and a vibration by the vibration apparatus
- a vibration sensor for detecting the vibration of the car, a car natural frequency estimating means for estimating the car natural frequency from the output of the vibration sensor, a car natural frequency and a car specific estimated by the car natural frequency estimating means.
- An abnormality determination means for detecting an abnormality by comparing with a frequency reference value is provided.
- the position sensor for detecting the position of the car the vibration car natural frequency calculating means for obtaining the vibration car natural frequency from the output of the position sensor, and the vibration car natural frequency
- a car vibration pattern generating means for generating a vibration pattern for vibrating the car, a vibration device for vibrating the car based on the output of the car vibration pattern generating means, and a vibration device
- a vibration sensor for detecting the vibration of the car a car natural frequency estimating means for estimating the car natural frequency from the output of the vibration sensor, a car natural frequency and a car natural frequency estimated by the car natural frequency estimating means. Since the abnormality determining means for detecting an abnormality by comparing with a reference value is provided, an abnormality accompanying the deterioration of the elevator rope can be detected with high accuracy, and the rope deterioration can be detected at an early stage.
- FIG. 1 shows an example of an elevator system including an elevator diagnostic apparatus according to Embodiment 1 of the present invention.
- the hoisting machine 1 is installed at the upper part of the elevator hoistway, and at both ends of the hoisting rope 2 wound around the hoisting machine 1, In each case, a car 3 and a counterweight 4 are suspended.
- the hoisting rope 2 and the car 3 are connected via a shackle spring 5, and the hoisting rope 2 and the counterweight 4 are connected by a shackle spring 6.
- the hoisting machine 1 is driven by driving means 12 in the control panel 7.
- the hoisting machine 1 is based on the information of the current sensor 13 that detects the current input to the driving means 12 and the information of the position sensor 11 that is installed in the hoisting machine 1 and detects the position of the car 3. Raise and lower the car 3.
- the scale device 8 measures the weight of the car 3 including passengers.
- the elevator diagnostic apparatus 20 is installed, for example, at the upper part of the elevator travel path.
- FIG. 2 shows an example of the elevator diagnostic apparatus 20 according to the first embodiment of the present invention.
- the elevator diagnosis apparatus 20 according to the first embodiment of the present invention includes an excitation car natural frequency calculation means 21, a car vibration pattern generation means 22, a car natural frequency estimation means 23, a storage means 24, and an abnormality determination means 25. I have.
- the abnormality determination unit 25 determines that the condition is “abnormal”
- the signal is output to the notification unit 26, and the notification unit 26 notifies the “abnormality” by turning on a warning lamp or by voice notification.
- FIG. 3 is a flowchart showing processing of the elevator diagnostic apparatus according to Embodiment 1 of the present invention.
- step S ⁇ b> it is confirmed from the output of the scale device 8 that there is no passenger in the car 3.
- step S2 a signal is output to the driving means 12, and the car 3 is moved to a predetermined position for performing elevator diagnosis.
- step S3 the position of the car 3 is acquired from the position sensor 11, the car natural frequency for vibration corresponding to the position of the car 3 is calculated by the car natural frequency calculating means 21 for vibration, and the result is calculated. It outputs to the vibration pattern generation means 22.
- step S4 the car vibration pattern generation means 22 generates a car vibration pattern from the inputted information on the vibration car natural frequency and operates the hoisting machine 1 through the driving means 12 to thereby move the car 3 Vibrates.
- Fig. 4 shows an example of a car vibration pattern.
- the time change of the rotational speed of the hoisting machine 1 is shown. Therefore, when the car 3 is vibrated by this car vibration pattern, the car 3 is shaken in the vertical direction.
- the car vibration pattern shown in FIG. 4 is a vibration in which the car 3 is vibrated for a predetermined time t1 with a sine wave of the vibration car natural frequency output from the vibration car natural frequency calculation means 21. The vibration pattern is combined with a zero speed pattern that holds the car 3 at zero speed.
- the hoisting machine 1 receives a disturbance of the natural frequency. At this time, the hoist 1 tries to follow the zero speed pattern, and thus exhibits a current response that cancels the disturbance. This current response is detected by the current sensor 13 and transmitted to the car natural frequency estimating means 23.
- step S5 the car natural frequency estimating means 23 estimates the car natural frequency from the output of the car vibration pattern generating means 22 and the output of the current sensor 13. Specifically, the timing of the zero speed pattern of FIG. 4 in step S4 is acquired from the output of the car vibration pattern generation means 22, and the output of the current sensor 13 at this time is acquired. FIG. 5 shows the result of frequency analysis of the output of the current sensor 13 at this time.
- the car natural frequency estimating means 23 outputs the frequency fr having the largest gain as a result of the frequency analysis to the storage means 24 and the abnormality determining means 25 as the “estimated value” of the car natural frequency.
- step S6 the abnormality determination means 25 compares the estimated value of the car natural frequency with the reference value.
- the storage means 24 stores a “reference value” that is a car natural frequency when the elevator rope is in a normal state at each stop position of the car 3. The method for creating the reference value will be described in detail later.
- step S 6 the “reference value” of the natural frequency at the stop position of the car 3 corresponding to the position information from the position sensor 11 and the “estimated value” of the natural frequency that is the output of the car natural frequency estimating means 23. And calculate the difference.
- step S7 when the difference calculated in step S6 exceeds a predetermined value, it is determined that “the rope has deteriorated”, and in step S10, the reporting means 26 reports an abnormality and ends the diagnosis.
- step S8 it is confirmed whether or not the diagnosis has been performed at all the stop positions of the car 3. If the diagnosis has not been completed, the car 3 is moved to a position where the diagnosis has not been performed in step S9. Then, the processes from step S3 to step S7 are performed. In step S8, when it is confirmed that the diagnosis has been performed at all the stop positions of the car 3, the diagnosis is terminated.
- the car natural frequency (hereinafter referred to as the overall primary natural frequency) is as follows. It can be expressed by a formula.
- f a is the overall primary natural frequency
- k is the rope stiffness
- m is an equivalent mass, and can be obtained by the following equation, where m 1 is the mass of the car 3 and m 2 is the mass of the counterweight 4.
- the rope stiffness k in equation (1) is determined by the total length of the rope on the side of the car 3 and the counterweight 4 and the shackle spring 5 and the shackle spring connected to the side of the car 3 and the side of the counterweight 4 respectively.
- a stiffness of 6 is given as an equivalent spring stiffness connected in series. In this way, the car is excited with the overall primary natural frequency f a calculated by the expressions (1) and (2) as the car natural frequency for vibration.
- FIG. 6 shows reference values and estimated values of the overall primary natural frequency with respect to the stop position of the car 3.
- the value of the entire primary natural frequency stored in the storage unit 24 is indicated as “reference value: f a1 ”.
- This reference value is the same as the car natural frequency for excitation, which is the overall primary natural frequency f a calculated by the equations (1) and (2). The value is almost constant regardless of the position.
- an example of an “estimated value” of the car natural frequency that is the output of the car natural frequency estimating means 23 is shown as “estimated value: f a2 ”.
- estimate value: f a2 the estimated value of the car natural frequency which is the output of the car natural frequency estimating means 23 is lowered.
- the “estimated value” of the car natural frequency, which is the output of the car natural frequency estimating means 23 decreases and the car 3 is on the third floor, the “estimated value” is “reference value”. ”By“ natural frequency difference ”.
- step S7 in FIG. 3 when the “natural frequency difference” exceeds a predetermined value, it is determined that the rope has deteriorated beyond a predetermined level, and an abnormality is reported.
- car side 1 the car natural frequency (hereinafter referred to as car side 1) Is called the next natural frequency).
- f b is the car-side primary natural frequency.
- k 1 is the car-side rope rigidity, and the rigidity determined by the entire rope length on the car 3 side and the rigidity of the shackle spring 5 connected to the car 3 side are given as equivalent spring rigidity connected in series.
- car vibration is performed using the car-side primary natural frequency f b calculated by the equation (3) as the car natural frequency for vibration.
- FIG. 7 shows reference values and estimated values of the car-side primary natural frequency with respect to the stop position of the car 3.
- the value of the car-side primary natural frequency stored in the storage unit 24, "reference value: f b1" are shown as.
- This reference value is the same as the car natural frequency f b which is the car-side primary natural frequency f b calculated by the expression (3), and the mass m 1 of the car 3 is related to the position of the car 3.
- the rope length on the side of the car 3 becomes shorter as the car 3 rises from the lowest floor, so that the car-side rope rigidity k 1 increases.
- the reference value f b1 of the car-side primary natural frequency increases.
- an example of an “estimated value” of the car natural frequency that is the output of the car natural frequency estimating means 23 is shown as “estimated value: f b2 ”.
- the estimated value of the car natural frequency which is the output of the car natural frequency estimating means 23 is lowered.
- the “estimated value” of the car natural frequency, which is the output of the car natural frequency estimating means 23 decreases on all floors, and the car 3 is on the fourth floor, the “estimated value” Is lower than the “reference value” by the “natural frequency difference”.
- the “natural frequency difference” in FIG. 7 is obtained for each floor.
- step S7 in FIG. 3 when the “natural frequency difference” exceeds a predetermined value, it is determined that the rope has deteriorated beyond a predetermined level, and an abnormality is reported.
- the car natural frequency used for the rope deterioration diagnosis may be the entire primary natural frequency or the car-side primary natural frequency.
- FIG. 8 shows an example in which only one part of the rope has deteriorated.
- the hoisting machine 1, the rope 2, the car 3, the counterweight 4, the shackle spring 5, and the shackle spring 6 are the same as the example shown in FIG. 1.
- the rope degradation part 100 is a part of the rope 2, and is a part where the rope stiffness is lowered due to aging degradation.
- FIG. 8A shows a state in which the car 3 is stopped on the first floor
- FIG. 8B shows a state in which the car 3 is stopped on the fourth floor.
- the rope degradation part 100 is a part of the rope 2 and moves from the side of the car 3 to the side of the counterweight 4 as the car 3 moves, the car 3 side when stopping on the first floor As the rope stiffness of the car decreases, the "estimated value" of the car-side primary natural frequency drops, but when the car stops on the fourth floor, there is no change in the rope rigidity of the car 3 side.
- the “estimated value” is the same as the “reference value”.
- FIG. 9 shows reference values and estimated values of the car-side primary natural frequency with respect to the stop position of the car 3 in the example shown in FIG.
- the reference value is shown as f c 1
- the estimated value is shown as f c 2.
- the difference between the estimated value and the reference value is determined to be “deteriorated”. Since the difference is small at the floor, it is determined that there is no deterioration.
- the abnormality determination means 25 may determine that there is an abnormality when there are one or more locations where the “natural frequency difference” exceeds a predetermined value at a plurality of car positions to be diagnosed. You may determine abnormality using the tendency of the difference with the reference value in a cage position.
- the elevator operation after judging the abnormality and reporting the abnormality may be immediately stopped according to the degree of abnormality, or the car position where the ⁇ natural frequency difference '' exceeds the predetermined value is set as the rope deterioration range Then, the operation may be performed such that the position of the car 3 whose difference from the reference value is within a predetermined value range is set as the rope normal range, and the elevator travel range after the abnormality determination is limited to the rope normal range.
- the 1st to 3rd floors are rope degradation ranges, limited to traveling from the 4th to 5th floors, and bending ropes are not subject to bending fatigue due to sheaves such as hoisting machines.
- the service may be continued for operation.
- the car natural frequency for excitation is calculated using a predetermined formula in accordance with the position of the car.
- the reference value stored in the storage unit 24 is determined according to the position of the car. It may be used as the natural frequency of the car for vibration.
- the procedure for memorizing the “reference value” is basically the same as the procedure for diagnostic processing, but it is confirmed that the elevator rope is normal, for example, immediately after installation of the elevator or inspection by a specialist engineer. Immediately after that, the “reference value” is stored.
- step S21 it is confirmed from the output of the scale device 8 that there are no passengers in the car 3.
- step S22 a signal is output to the driving means 12, and the car 3 is moved to a predetermined position for storing the reference value.
- step S23 the position of the car 3 is acquired from the position sensor 11, and the car natural frequency calculating means 21 is used to calculate the car natural frequency for vibration from the output of the position sensor 11, and the result is the car vibration.
- step S24 the car vibration pattern generation means 22 generates a car vibration pattern from the input information on the natural frequency of the car for vibration and operates the hoisting machine 1 through the driving means 12 to thereby move the car 3 Vibrates.
- the car vibration pattern generated by the car vibration pattern generation means 22 is, for example, as shown in FIG.
- the car natural frequency estimating means 23 estimates the car natural frequency from the output of the car vibration pattern generating means 22 and the output of the current sensor 13. Specifically, the timing of the zero speed pattern of FIG. 4 in step S24 is acquired from the output of the car vibration pattern generation means 22, and the output of the current sensor 13 at this time is acquired. FIG. 5 shows the result of frequency analysis of the output of the current sensor 13 at this time.
- the car natural frequency estimation means 23 obtains the frequency fr having the largest gain as the result of the frequency analysis and the “reference value of the car natural frequency. "Is output. In step S ⁇ b> 26, the position information that is the output of the position sensor 11 and the “reference value” that is the output of the car natural frequency estimating means 23 are stored in the storage means 24.
- step 27 it is confirmed whether or not the “reference value” has been stored at all the stop positions of the car 3. If the execution has not been completed, the process proceeds to a position in which “reference value” is not stored in step S28. After moving the car 3, steps S23 to S27 are performed. If it is confirmed in step S27 that the “reference value” has been stored at all the stop positions of the car 3, the storage operation of the “reference value” is terminated.
- FIG. 11 shows the “calculated value” that is the output of the car natural frequency calculating means 21 for excitation and the output of the car natural frequency estimating means 23 in the “reference value” storing procedure shown in FIG. An example of the “reference value” is shown. As shown in FIG. 11, the “calculated value” and the “reference value” may be different.
- FIG. 12 shows an example of the output of the current sensor 13.
- a plurality of output peaks of the current sensor 13 shown in FIG. 12 are extracted, and average values of reciprocals of peak feeling times ta, tb, tc, and td are obtained. This may be used as the output of the car natural frequency estimating means 23.
- the diameter of the rope is reduced when the steel wire constituting the rope is thinned or the strand of the rope is broken. For example, when the rope stiffness decreases, a decrease in the rope stiffness can be detected. Further, by detecting the rope deterioration for each stop position of the car 3, the rope deterioration position can be specified. Furthermore, by detecting the vibration of the car 3 by the hoisting machine 1 and estimating the natural frequency of the car from the excited vibration, it is possible to detect aged deterioration of the elevator rope that is difficult to detect in normal traveling of the elevator. Can do.
- the position sensor 11, the drive means 12, the current sensor 13, and the scale device 8 are already provided in the conventional elevator apparatus.
- the elevator diagnostic apparatus shown in FIG. It is possible to detect a decrease in rope stiffness.
- the car-side primary natural frequency determined by the equivalent spring stiffness of the car-side rope and the shackle spring 5 and the mass of the car 3 is described as an example using the formula (3).
- the primary natural frequency of the counterweight side which is determined by the mass of the counterweight 4 and the equivalent spring stiffness of the counterweight-side rope and shackle spring 6, which exists symmetrically with the hoisting machine 1,
- the car natural frequency may be used for deterioration diagnosis.
- the combination of the driving means 12 and the hoisting machine 1 is shown as the vibration device.
- the present invention is not limited to this, and the car 3 is operated based on a command from the car vibration pattern generation means 22. Anything that vibrates can be used.
- the output of the car vibration pattern generation means 22 may be input to a self-vibration device that vibrates itself, and the car may be vibrated by installing the self-vibration device in the car 3.
- the self-vibration device may be brought into the car 3 at the time of elevator diagnosis or may be permanently installed in the car 3.
- the current sensor 13 is shown as a vibration sensor for detecting the vibration of the car.
- the present invention is not limited to this, and the car 3 may be detected by a physical vibration sensor installed in the car 3. Any device can be used as long as it can detect vibrations.
- FIG. 14 shows an example of an elevator system provided with an elevator diagnostic apparatus according to Embodiment 2 of the present invention.
- the elevator diagnostic apparatus 20 is changed to the elevator diagnostic apparatus 30, and the elevator car 3 This is the same except that a physical vibration sensor 40 for detecting vibration is added.
- FIG. 15 shows an example of the elevator diagnostic apparatus 30 according to the second embodiment of the present invention.
- the elevator diagnosis apparatus 30 according to the second embodiment of the present invention includes an emergency stop pattern generation unit 31, a car natural frequency estimation unit 23, a storage unit 24, and an abnormality determination unit 25.
- the abnormality determination unit 25 determines that the condition is “abnormal”
- the signal is output to the notification unit 26, and the notification unit 26 notifies the “abnormality” by turning on a warning lamp or by voice notification.
- FIG. 16 is a flowchart showing processing of the elevator diagnostic apparatus 30 according to the second embodiment of the present invention.
- step S31 it is confirmed from the output of the scale device 8 that there is no passenger in the car 3.
- step S32 a signal is output to the driving means 12, and the car 3 is moved to a predetermined position for performing elevator diagnosis.
- step S33 a traveling instruction is output from the emergency stop pattern generating means 31 to the driving means 12, and the car 3 is driven in a traveling pattern as shown in FIG.
- the emergency stop pattern generation unit 31 outputs an emergency stop pattern for performing an emergency stop operation at the predetermined position S ⁇ b> 1 to the drive unit 12 based on information from the position sensor 11.
- the car 3 is suddenly stopped by the emergency stop operation, and at this time, the car 3 is vibrated at a car-side primary natural frequency that is easily shaken in the vertical direction by receiving a step-like disturbance.
- vibration as shown in FIG. 18 is detected by the physical vibration sensor 40.
- t ⁇ b> 3 is the time when the emergency stop operation is performed, and the car vibration signal in the section from immediately after that to t ⁇ b> 4 after a predetermined time is output from the physical vibration sensor 40 to the car natural frequency estimating means 23.
- the car natural frequency estimating means 23 estimates the car natural frequency from the output of the physical vibration sensor 40.
- the specific method for estimating the car natural frequency in the car natural frequency estimating means 23 is the same as in the first embodiment.
- the car natural frequency which is the output of the car natural frequency estimating means 23 is output to the storage means 24 and the abnormality determining means 25 as an “estimated value” of the car natural frequency.
- Step S35 in FIG. 16 is step S6 in FIG. 3
- step S36 in FIG. 16 is step S7 in FIG. 3
- step S37 in FIG. 16 is step S8 in FIG. 3
- step S38 in FIG. Step S9 and step S39 in FIG. 16 are the same as step S10 in FIG.
- the emergency car vibration frequency corresponding to the position of the car 3 can be calculated without calculating the vibration frequency at all positions. If the rope stiffness decreases due to a decrease in the diameter of the rope due to the steel wire constituting the rope becoming thin or the rope strand breaking, etc., simply by stopping the operation, a decrease in the rope stiffness is detected. be able to.
- the physical vibration sensor 40 is shown as the vibration sensor for detecting the vibration of the car 3 during the emergency stop operation. It doesn't matter.
- a speed governor 41 that monitors the speed of the car 3 and a speed governor encoder 42 that outputs the rotational speed of the speed governor 41 are installed.
- the vibration of the car 3 may be detected.
- the vibration of the car 3 may be detected from the change in the detection result of the scale device 8 that measures the weight of the car 3.
- the driving means 12 is shown as the car rapid stop means. However, any means may be used as long as the car 3 is suddenly stopped based on the output of the emergency stop pattern generation means 31. .
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
- Indicating And Signalling Devices For Elevators (AREA)
Abstract
Description
図1は、本発明の実施の形態1によるエレベータ診断装置を備えたエレベータシステムの一例を示したものである。本発明の実施の形態1によるエレベータ診断装置を備えたエレベータシステムは、エレベータ昇降路上部に巻上機1が設置されており、巻上機1に巻きかけられた巻き上げロープ2の両端には、それぞれ、乗りかご3と釣合おもり4がつり下げられている。巻き上げロープ2と乗りかご3はシャックルバネ5を介して連結されており、巻き上げロープ2と釣合おもり4はシャックルバネ6で連結されている。巻上機1は、制御盤7にある駆動手段12によって駆動される。巻上機1は、駆動手段12に入力される電流を検出する電流センサ13の情報と、巻上機1に設置され乗りかご3の位置を検出する位置センサ11との情報に基づいて、乗りかご3を昇降させる。秤装置8は、乗客を含めた乗りかご3の重量を測定する。エレベータ診断装置20は、例えば、エレベータ走行路上部に設置されている。
図14は、本発明の実施の形態2によるエレベータ診断装置を備えたエレベータシステムの一例を示したものである。図14を本発明の実施の形態1によるエレベータ診断装置を備えたエレベータシステムの一例を示した図である図1と比べると、エレベータ診断装置20がエレベータ診断装置30に変更され、乗りかご3の振動を検出する物理振動センサ40が追加された以外は、同じである。
12 駆動手段
13 電流センサ
21 加振用かご固有振動数計算手段
22 かご加振パターン生成手段
23 かご固有振動数推定手段
25 異常判定手段
Claims (7)
- 乗りかごの位置を検出する位置センサと、
前記位置センサの出力から加振用かご固有振動数を求める加振用かご固有振動数計算手段と、
前記加振用かご固有振動数で前記乗りかごを加振する加振パターンを生成するかご加振パターン生成手段と、
前記かご加振パターン生成手段の出力に基づいて前記乗りかごを加振する加振装置と、
前記加振装置によって加振された乗りかごの振動を検出する振動センサと、
前記振動センサの出力からかご固有振動数を推定するかご固有振動数推定手段と、
前記かご固有振動数推定手段によって推定された前記かご固有振動数とかご固有振動数基準値とを比較することにより異常を検出する異常判定手段と
を備えたエレベータ診断装置。 - 前記加振装置は前記乗りかごにつながれたロープを巻き上げる巻上機の駆動回路であり、
前記振動センサは前記駆動回路に入力される電流を検出する電流センサである
ことを特徴とする請求項1に記載のエレベータ診断装置。 - 前記かご加振パターン生成手段において生成する前記加振パターンは、前記加振用かご固有振動数計算手段で求めた前記加振用かご固有振動数の正弦波で前記乗りかごを加振する加振パターンと速度ゼロで前記乗りかごを保持するゼロ速度パターンを組み合わせたものである
ことを特徴とする請求項1または2に記載のエレベータ診断装置。 - 前記加振用かご固有振動数は全体1次固有振動数である
ことを特徴とする請求項1から3のいずれか1項に記載のエレベータ診断装置。 - 前記加振用かご固有振動数はかご側1次固有振動数である
ことを特徴とする請求項1から3のいずれか1項に記載のエレベータ診断装置。 - 乗りかごの位置を検出する位置センサと、
前記位置センサの出力から所定位置で非常停止動作を行うための非常停止パターンを生成する非常停止パターン生成手段と、
前記非常停止パターン生成手段の出力に基づいて前記乗りかごを前記位置で急停止するかご急停止手段と、
前記かご急停止手段によって停止された後の前記乗りかごの振動を検出する振動センサと、
前記振動センサの出力からかご固有振動数を推定するかご固有振動数推定手段と、
前記かご固有振動数推定手段によって推定された前記かご固有振動数とかご固有振動数基準値とを比較することにより異常を検出する異常判定手段と
を備えたエレベータ診断装置。 - 前記異常判断手段は前記乗りかごの位置を複数変化させて異常を検出する
ことを特徴とする請求項1から6のいずれか1項に記載のエレベータ診断装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE112014005048.2T DE112014005048T5 (de) | 2013-11-06 | 2014-08-20 | Aufzugdiagnosevorrichtung |
JP2015546277A JP6049902B2 (ja) | 2013-11-06 | 2014-08-20 | エレベータ診断装置 |
CN201480059705.9A CN105705450B (zh) | 2013-11-06 | 2014-08-20 | 电梯诊断装置 |
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Cited By (5)
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WO2016002370A1 (ja) * | 2014-07-03 | 2016-01-07 | 三菱電機株式会社 | エレベータのロープ劣化伸び診断装置、エレベータのロープ劣化伸び診断方法、及びエレベータのロープ劣化伸び診断用突起部材 |
CN110626914A (zh) * | 2019-08-18 | 2019-12-31 | 浙江梅轮电梯股份有限公司 | 电梯的独立式安全监测装置 |
EP3640178A1 (en) * | 2018-08-21 | 2020-04-22 | Otis Elevator Company | Determining elevator car location using vibrations |
US20210188597A1 (en) * | 2017-08-10 | 2021-06-24 | Mitsubishi Electric Corporation | Break detection device |
CN113710602A (zh) * | 2019-04-23 | 2021-11-26 | 三菱电机株式会社 | 断裂检测装置 |
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US10407274B2 (en) * | 2016-12-08 | 2019-09-10 | Mitsubishi Electric Research Laboratories, Inc. | System and method for parameter estimation of hybrid sinusoidal FM-polynomial phase signal |
CN108238527B (zh) * | 2016-12-23 | 2019-11-12 | 通力股份公司 | 用于电梯绳索状态监控的装置和方法 |
WO2019220669A1 (ja) * | 2018-05-15 | 2019-11-21 | 三菱電機株式会社 | 制振装置およびエレベーター装置 |
US11584614B2 (en) * | 2018-06-15 | 2023-02-21 | Otis Elevator Company | Elevator sensor system floor mapping |
WO2020089508A1 (en) * | 2018-11-02 | 2020-05-07 | Kone Corporation | Arrangement for detecting bearing failures in elevator |
CN110422725B (zh) * | 2019-08-18 | 2021-04-02 | 浙江梅轮电梯股份有限公司 | 基于非线性形态共振模型的电梯防坠独立式安全监测方法 |
CN110626915B (zh) * | 2019-08-18 | 2020-09-08 | 浙江梅轮电梯股份有限公司 | 基于傅里叶变换的电梯防坠独立式安全监测方法 |
DE102023100019A1 (de) | 2023-01-02 | 2024-01-18 | Tk Elevator Innovation And Operations Gmbh | Aufzugsvorrichtung mit antriebsbasiert implementierter Zugmittelschwingungsdämpfung sowie entsprechendes Verfahren und Verwendung |
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WO2016002370A1 (ja) * | 2014-07-03 | 2016-01-07 | 三菱電機株式会社 | エレベータのロープ劣化伸び診断装置、エレベータのロープ劣化伸び診断方法、及びエレベータのロープ劣化伸び診断用突起部材 |
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US20210188597A1 (en) * | 2017-08-10 | 2021-06-24 | Mitsubishi Electric Corporation | Break detection device |
EP3640178A1 (en) * | 2018-08-21 | 2020-04-22 | Otis Elevator Company | Determining elevator car location using vibrations |
US11535486B2 (en) | 2018-08-21 | 2022-12-27 | Otis Elevator Company | Determining elevator car location using vibrations |
CN113710602A (zh) * | 2019-04-23 | 2021-11-26 | 三菱电机株式会社 | 断裂检测装置 |
CN113710602B (zh) * | 2019-04-23 | 2023-04-04 | 三菱电机株式会社 | 断裂检测装置 |
CN110626914A (zh) * | 2019-08-18 | 2019-12-31 | 浙江梅轮电梯股份有限公司 | 电梯的独立式安全监测装置 |
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CN105705450B (zh) | 2017-09-29 |
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