CN102906001A - Elevator and elevator rope monitoring device - Google Patents
Elevator and elevator rope monitoring device Download PDFInfo
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- CN102906001A CN102906001A CN2010800670520A CN201080067052A CN102906001A CN 102906001 A CN102906001 A CN 102906001A CN 2010800670520 A CN2010800670520 A CN 2010800670520A CN 201080067052 A CN201080067052 A CN 201080067052A CN 102906001 A CN102906001 A CN 102906001A
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- rope
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- frequency
- oscillation frequency
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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
- B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
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- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention relates to an elevator rope monitoring device (21) for monitoring the rope tension of at least one rope in a set of elevator ropes, the monitoring device comprising a rope tension sensor (18a-18e) and a control means (22), whereby the output signal of the rope tension sensor is fed to the control means, which control means comprises an processing unit (30) which is adapted to initiate a predetermined action if the output signal of the rope tension sensor or a signal derived therefrom reaches a preset relationship with respect to at least one predetermined reference value, characterized in that the control means comprises a oscillation detection means comprising - a frequency monitoring means (24) for determining at least one oscillation frequency of the output signal of the rope tension sensor, and - an amplitude determining means (26, 28); determining the amplitude of the at least one oscillation frequency determined by the frequency monitoring means, whereby the processing unit initiates the predetermined action if the oscillation frequency and/or its amplitude has a preset relationship to corresponding predetermined reference values. By this invention the status or behaviour of the elevator ropes as well as of other elevator components can be monitored.
Description
Technical field
The present invention relates to have the elevator for the elevator rope control monitor unit of the rope tension of at least one rope of one group of elevator rope of monitoring.
Background technology
For this reason, the rope control monitor unit comprises rope tension sensor and control convenience, and thus, the output signal of rope tension sensor is fed to control setup.The rope control monitor unit comprises processing unit, produces if its output signal that is suitable for the rope tension sensor surpasses at least one predetermined reference value be used to beginning to keep in repair or the energizing signal of urgent action.
From US 6,123, be known such as such device of requiring among the present invention in 176.In the document, if the rope tension of different ropes is compared to each other and with predetermined reference value comparison so that this tension force that relatively obtains a rope basically departs from the tension force of other ropes or departs from the result of reference value then produce an alerting signal.Therefore, the configuration of describing in the document and method are suitable for guaranteeing the tension value scope corresponding to tension force of different elevator ropes particularly well.
By US 6,123, the configuration that this of 176 is known is in any case can not determine the reason of waving and waving of elevator rope in elevator device.
Summary of the invention
Therefore, the objective of the invention is the elevator that a kind of elevator rope control monitor unit will be provided and have such device, it allows the more detailed information about the performance of rope state or elevator device.
The elevator rope control monitor unit of this purpose by according to claim 1, the elevator by according to claim 9 and realize by method for supervising according to claim 13.The preferred embodiments of the present invention are themes of corresponding dependent claims.
According to the present invention, the elevator rope control monitor unit comprises the oscillation test unit, its any oscillation frequency that is suitable for detecting the tension signal that obtains from the rope tension sensor with and amplitude.For this reason, the oscillation test unit comprises for the frequency monitoring device of at least one oscillation frequency of the output signal of determining the rope tension sensor and the amplitude of the amplitude of at least one rope oscillation frequency of determining to be determined by the frequency monitoring device is determined device.
Clearly, the tension signal that obtains from tonometry via the rope tension sensor of analysis of the present invention is to obtain oscillation frequency and the amplitude of tension signal.In order to illustrate technical term, be stressed that term " waves (sway) " and refer to the side on oscillation action of elevator rope, it can be measured by the rope tension sensor, as the oscillation output signal with corresponding frequencies.
Basic conception of the present invention is:
1. measure the tension force of rope, amplitude and frequency spectrum are collected from this tension force, record for example,
2. the data optimization of collecting is by the FFT(fast Fourier transform) identify stablizing and instantaneous variation of rope tension with real-time mode analysis,
3. with known elevator and rope data, the frequency of the tension force that these are stable and instantaneous and amplitude are used to identify and quantize any effect that applies to the event of rope, thus
4. one of these temporal events of occuring of rope are that (laterally) rope waves, and it has discernible unique features, because its frequency is within the specific limits based on state of elevator, and car position for example, car load, acceleration/accel, deceleration/decel etc. and changing.
Therefore, by above-mentioned key element, can wave or influential other elevator components of rope tension tool are inferred rope.
Determining of vibration by tension signal of the present invention, the not only state of rope or performance, for example rope wobble frequency and amplitude, can be monitored, and such as elevator motor, along the moving of the mode of operation of other elevator components of the guide rail guide member of respective track guiding lift car or counterweight or performance, lift car, governor, car door etc., also can be monitored.All these parts produce in operation stable or instantaneous tension effect, for example have the vibration of certain frequency, and it is passed to elevator rope and can be by the rope tension sensor measurement.Thereby, ultra-low frequencyly depart from or wave when the guide rail guide member of lift car can produce to have when guide rail is moved swimmingly.Thereby elevator components can be exerted one's influence to rope tension by their position, action or operation, for example, and to have the form of more low-frequency vibration or vibration.By the present invention, can monitor now state or the performance of these vibrations or vibration and deducibility elevator components.
The oscillation frequency of the tension signal that measures and amplitude can be in the comparator of processing unit compare with corresponding predetermined reference value, for example to check that vibration is whether in allowed band.Result relatively can form the preset relation of measured value and predetermined value.If the preset relation between these values is implemented, for example the tested definite value of predetermined value reaches, or optionally is exceeded with given threshold value or approaches, and predetermined action is for example safeguarded or emergency action, can be activated.Predetermined reference value can be that a threshold value maybe can be the value as the acceptable certain limit of reflection normal elevator operation.Predetermined action also can comprise the one or more of following action:
-lift car is stopped, and/or
-forbid beginning new operation, and/or
-elevator is set to another pattern (for example the car speed pattern promotes safety mode, for example emergency mode), and/or,
-elevator car speed reduces,
The diagnosis of at least a portion of-execution elevator device.
Like this, the selection of predetermined action is very wide in range and can comprise directly arrive at a station (the immediate tillstand) of elevator, it for example can be the Remote Open of vital circuit, or elevator safety operation still can comprise the signal (output signal after for example FFT processes) that record rope tension sensor output signal or record are derived therefrom equally to next time stop place.These records can for example be used for diagnostic purpose.Service action can comprise the notice to the periodic inspection in future, perhaps arranges immediately special elevator examination, perhaps even via electric life controller via known long-range inspection itself and each parts of long-range inspection.
The frequency monitoring device is known device itself, and it can be from least one oscillation frequency of a signal detection.Preferably, the frequency monitoring device can be in wide frequency limit, for example from 0.1 hertz to 50 kilo hertzs, especially from 1 hertz to 20 kilo hertzs, carry out the frequency scanning of rope tension sensor output signal.
Amplitude determines that device is known device itself, and it can check the amplitude of the oscillation frequency of current check.Such device can for example calculate the difference of the reversed peak of output signal, or calculates the peak value of output signal and the difference between the main value.
Be not subjected to the impact of other oscillation frequency in order to ensure these observed readings, preferably, filter, bandpass filter especially, the performance constraint that is provided to amplitude is at least determined device is wanted checked oscillation frequency to current.This filter can be provided together with the frequency monitoring device.Term in this application " unit " does not also mean that the functional of parts must realize with a unit.Parts can be arranged to distributed, and also can be integrated in the miscellaneous part.Thereby for example, the frequency monitoring device can be used as independent module and provides, or can or even integrate with electric life controller or elevator group controlling device with rope control monitor unit or its control setup.
Amplitude determines that device can for example have integrator, is used for the output signal of rope tension sensor in predetermined time period carried out integration to obtain average rope tension value; And also having peak detector, it determines the maximum deflection difference value of output signal from average rope tension value, or the reversed peak of the oscillator signal in the window when deducting the schedule time.
Oscillation frequency and amplitude of oscillation are fed to the processing unit of rope control monitor unit.Processing unit is the part of rope monitoring unit, but can also be integrated in the electric life controller, or is not embodied as a unit, but realizes with distribution mode.
Preferably, the elevator rope control monitor unit comprises for the communication interface that connects control setup and electric life controller.By these means, can guarantee that the output signal of elevator rope control monitor unit can be used for the Generally Recognized as safe purpose by electric life controller.In this respect, must realize the processing unit of elevator rope control monitor unit and/or any control setup can be used as independent unit or module provides, perhaps it also can be embodied in electric life controller or in the elevator group controlling device.
Window when in a preferred embodiment of the invention, the frequency monitoring device is configured to come set amplitude to determine the measurement of device according to the oscillation frequency of at least one detection.By the method, can obtain the discrete measurement of the amplitude of oscillation of each single single oscillation frequency, it scarcely is subjected to the impact of other oscillation frequency.Preferably, the frequency monitoring device checks different oscillation frequency in turn in the frequency scanning of the output signal of rope tension detector.During this frequency scanning, window is adjusted to the value corresponding to a discrete frequency by will measure the time, can measure the amplitude that is not subjected to the oscillation frequency that other oscillation frequency affect.
Preferably, filter, bandpass filter is used in the elevator rope control monitor unit to suppress the impact of other oscillation frequency when measuring the amplitude of a certain oscillation frequency especially.These filters preferably are subject to equally the control of frequency monitoring device or integrate with the frequency monitoring device.
Preferably, in frequency scanning, the measurement of the amplitude of different oscillation frequency is carried out in turn so that obtain discrete one group of different oscillation frequency and respective amplitudes.Certainly, in the case, whether each frequency/amplitude group is examined it corresponding to predetermined reference value in processing unit.
Existence is interactional some parameters on rope tension, and it has set up the multi-variable system that always changes.Rope tension change be because:
-car position changes.This has major effect to the rope tension level.This changes gradually generation in motion process.Car position information can receive and be used for helping to wave analysis from electric life controller.
-car load changes.This can be to change in stop only, progressively changes.
-car speed changes, i.e. the acceleration/deceleration of rope and car.
They affect the performance of system.In addition, the factor that exists building to wave.Building waves and can cause producing bad resonance frequency.Because these factors can provide a plurality of predetermined reference values that reflect these different parameters.Therefore, preferably, the processing of oscillation data occurs under the free rope lengths of consideration.For this reason, for the comparison of oscillation frequency and/or amplitude and at least one predetermined value, the position of lift car and/or counterweight is considered.By obtaining the position of car or counterweight, can calculate free rope lengths.It is conclusive parameter that this free rope lengths is waved rope.Therefore, by consider this free rope lengths via car or balance position, can obtain more specifically and accurately about the oscillation frequency of allowing and the information of amplitude.This knowledge can be used for estimating to consider whether exist abnormal rope to wave under the free rope lengths.Predetermined value thereby can be for example set up relatively with the free rope lengths that is obtained by car or balance position.
As above described already, the meeting further parameter relevant with the estimation of the vibration of rope tension sensor signal is car load and/or car speed/acceleration/deceleration.The control setup that these parameters can be fed to the rope control monitor unit take in relatively for example by the vibration the impact of predetermined value being considered measure whether as permissible.Via car load sensor and speed/acceleration sensor, for example can obtain corresponding value from common electric life controller or elevator group controlling device.
Preferably, the elevator rope control monitor unit comprises at least one memory device with reference to tension value, if processing unit is suitable for producing the output signal value of its derivation (or from) of rope tension sensor and surpass predetermined threshold with reference to the difference between the tension value then begin the energizing signal of predetermined action.Total tension level that in this way, can guarantee one or several elevator rope can not drop under the predeterminated level or rise on the predeterminated level.
In favourable embodiment of the present invention, for the output of tension pick-up signal, carry out the Fourler transform analysis, to identify the frequency that is caused by waving of elevator rope.Preferably, fast Fourier transform analysis (FFT) is performed.By using fft analysis rope tension sensor signal, the different event with " unique features (fingerprint) " that can identify easily can easily be separated from each other.Such event for example is:
A) car position, it causes the gradual change of the tension level corresponding with elevator speed,
B) car load/unload, its cause " ladder-type " of tension level change and if only if car when not moving (situation a) does not just occur,
C) car acceleration/accel, it causes the gradual change of the tension level corresponding with elevator name acceleration/deceleration.
By using FFT, can cause that equally the horizontal rope of rope tension vibration waves and can be distinguished easily, or separate with the change of the tension level that is for example caused by above situation a, b and c by other events.
Separate with change in oscillation because FFT allows us that level (level) is changed, thus the rope frequency of waving can also be used to definite car the position (at least to certain level and when rope when waving), because rope and elevator characteristic are known.
Advantageously, for each elevator rope, provide independent rope tension sensor so that not only the rope tension of each rope can be examined with respect to the variation of reference value, and the tension force of each rope can be examined also with respect to the tension force of other rope or with respect to the mutual tension force value difference of tension force aviation value.This also allows when the preset relation that obtains between observed reading and the predetermined value, if the difference between the tension value of the different elevator ropes of for example measuring surpasses given or predetermined threshold, triggers predetermined action.
The elevator rope control monitor unit preferably includes memory device, this memory device have from elevator in the corresponding oscillation frequency of the operation of different parts and the form of amplitude, at least one predetermined reference value can be derived from this form.In this way, can check a certain elevator components, for example transmit a certain vibration to the drive machines of elevator rope, whether under normal condition, work.Usually, this vibration has a certain frequency corresponding with the running frequency of drive machines and a certain respective amplitudes.When the amplitude of the vibration that is delivered to rope and/or the corresponding preset value of frequency from be kept at form departed from, deducibility went out the mode of operation mal of drive machines unit so that can take to safeguard step.
The invention still further relates to the elevator that comprises according to elevator rope control monitor unit described above.
Preferably, this elevator have two way communication and towards the remote monitor and control unit so that the stator information that is obtained by the elevator rope control monitor unit can be communicated to the remote monitor and control unit, for the treatment of the further step relevant with maintenance and emergency action with beginning.
At this on the one hand, it must be carried out: at least one parts of the elevator rope control monitor unit except the rope tension sensor or several parts can be positioned at dispersedly in the rope control monitor unit or be integrated in the rope control monitor unit, are connected perhaps even with electric life controller or elevator group controlling device or integrate.
In addition, the present invention relates to use the method for the rope tension of rope tension Sensor monitoring elevator rope.According to the present invention, the output signal of rope tension sensor by frequency sweep to obtain at least one oscillation frequency.In addition, at least one, preferably each, the amplitude of oscillation frequency is determined.Pass through the method, can check the rope tension sensor signal about different oscillation frequency and their corresponding amplitude of oscillation, wherein said different oscillation frequency and their corresponding amplitude of oscillation can be estimated discretely, preferably by FFT, to provide with the state of elevator rope and other elevator components or to show relevant information.
Preferably, the output signal of rope tension sensor and at least one reference value compare beginning according to comparative result elevator are safeguarded or emergency action.If oscillation frequency and/or its amplitude reach the preset relation with at least one predetermined reference value, then begin aforesaid predetermined action.
Window can be adjusted to each oscillation frequency that detects when preferably, amplitude was determined the measurement of device in frequency scanning.Preferably, the time cycle and the time window be set to 1 to 50 of corresponding oscillation frequency, 1 to 10 range of wavelength is in order to suppress other three oscillation frequency are determined the result on amplitude impact especially.Preferably, the inhibition of other frequencies can by using filter, preferably can be adjusted to the adjustable band bandpass filter of the oscillation frequency of each estimation, and be improved.
The fft analysis of the output signal by using the rope tension sensor has obtained the above-described advantage that makes an explanation about FFT.
Preferably, the processing unit of rope control monitor unit comprises record storage, and it is used for being recorded in the output signal of the rope tension sensor in the predetermined period of time in order to carry out FFT.
Above-mentioned preferred embodiment can be bonded to each other, as long as this is not got rid of by technical conflicting feature.Like this, the advantage of different preferred embodiment can be bonded to each other or can be helpful each other.
Description of drawings
By means of accompanying drawing the present invention is described schematically now.
Fig. 1 illustrates and the coefficient elevator components of elevator rope control monitor unit.
The specific embodiment
The parts of the very schematically illustrated elevator 10 of Fig. 1, this elevator 10 comprises mounting structure 12 at its top, is used for the elevator rope 14a-14d of elevator is fastened to supporting construction, for example the wall of building or top ceiling.Rope 14a-14d is fixed to the supporting construction 12 of elevator 10 via suspension bracket 16a-16e.This illustrates the rope monitoring unit 21 for the monitoring rope tension.For this reason, rope monitoring unit 21 is included in the rope tension sensor 18a-18e of the base portion of each suspension bracket 16a-16e.The output line 20a-20e of rope tension sensor 18a-18e is connected to the processing unit 22 of rope monitoring unit 21.What further be connected to processing unit 22 is for example input end of the signal of speed and acceleration/accel of the mouth of car/balance position detecting device 23 of elevator or the conduct that derives from car/balance position.Further, the output signal of car load sensor 25 can be fed to processing unit 22.Processing unit 22 comprises frequency monitoring device 24, integrator 26, peak detector 28, comparator 30 and memory device 32.Integrator 26 and peak detector 28 are set up the embodiment that amplitude is determined device.Certainly, these parts can be by this substitutes as the known miscellaneous part that is used for this purpose in the prior art.Output line 20a-20e is connected to frequency monitoring device 24, integrator 26 and peak detector 28.Comparator 30 is connected to electric life controller 36 via interface 34, and thus, interface 34 is preferably serial communication bus.Electric life controller 36 is for example via phone, and broadcasting network or internet 38 are connected to remote monitor and control unit 40.Can be unit or can make electric life controller 36 or the part of cluster control unit (not shown) independently as the processing unit of the part of rope control monitor unit.Certainly, processing unit can comprise the parts of the independent control setup that maybe can be rope monitoring unit 21.Processing unit can comprise microprocessor and need not to be realized as a unit.
Connection between the different parts is as follows: frequency monitoring device 24 comprises filter 25 and is connected to integrator 26 via line 42,44 and 46, to peak detector 28 and to comparator 30.Integrator 26 is connected to peak detector 28 via line 48, and integrator 26 is connected to processing unit 40 via line 50.Memory device 32 is connected to comparator 30 via line 52, and thus, memory device 32 can also be integrated in the comparator 30.Further, peak detector 28 is connected to comparator 30 via line 54.
The function of elevator rope control monitor unit 21 is as follows:
The frequency monitoring device 24 of processing unit 22 is carried out the frequency sweep of the rope tension detector 18a-18e signal that is received by output line 20a-20e.
In frequency sweep, frequency monitoring device 24 is carried out the in turn measurement of each oscillation frequency of rope sensor output signal.The frequency monitoring device is regulated filter 25, and preferred bandpass filter is so that only want estimative small frequency scope further to be sent to integrator 26 and peak detector 28.In addition, frequency monitoring device 24 is set to for example value of 5 wavelength with the time cycle of integrator 26.Certainly, this value can also differently be selected.Similarly, the pre-timing window of peak detector 28 is adjusted to several wavelength of the oscillation frequency of estimation, for example half wavelength.In this way, the rope tension value behind the integration is obtained as aviation value, and the maxim of deviation (peak value) is measured.Deduct this aviation value from these peak values, the value that obtains forms the amplitude of oscillation frequency.Peak value determines that device also can deduct reversed peak, is used for obtaining frequency and amplitude.In this case, without any need for integrator.Then the amplitude of oscillation frequency is sent to comparator 30 via line 54, and this comparator also receives the oscillation frequency of estimating via line 56 from frequency monitoring device 24.In addition, integrator 26 is sent to comparator 30 via line 50 with the rope tension value of integration.
Finally under the signal of considering car position detector 23 and car load sensor 25, the oscillation frequency that comparator 30 is relatively estimated with and amplitude and be kept at predetermined value or value scope in the memory device 32.When surpassing permissible range, it or beginning are such as the emergency action of mentioning already in the past or some actions of service action, or the operational diagnostics program, this program even serially operation.In this diagnostic program, any above data or the data that obtained by fft analysis can be processed and/or be sent to elevator control unit 36 via interface 34, the data that all the essential data (for example, oscillation frequency and amplitude) of can monitoring this elevator control unit maybe derive with these data or by this data are via the internet or broadcast 38 and be sent to the remote monitor and control unit.In electric life controller 36 or in remote monitor and control unit 40, as safeguarding or the corresponding actions of emergency case step can automatically perform or carry out by the personnel that work in the remote monitor and control unit.
Preferably, the data of the fft analysis of the rope sensor output signal from processing unit acquisition are sent to the remote monitor and control unit.
In addition, the output signal of rope tension sensor or integrator is if especially based on longer time cycle or continuously measurement, can compare with the corresponding reference value that is kept in the memory device 32 in comparator 30.By this relatively, whether in allowed limits can estimate total tension level of elevator rope.
Memory device 32 can also comprise that the tension value of each elevator rope or integration tension value are so that processing unit can compare these values to produce energizing signal each other when the deviation between the tension value of each rope surpasses a certain threshold value.
Therefore, one aspect of the present invention by checking elevator rope self state or performance and provide improvement of safety by state or the performance that indirectly checks miscellaneous part, the state of wherein said miscellaneous part or performance can detect by vibration or the vibration via the elevator rope transmission.
In above embodiment, shown in the number of rope can be different from.In addition, rope control monitor unit 21, each parts 24,25,26,28 of processing unit 22 and oscillation test unit and 30 can fully and the elevator rope control monitor unit be integrated and/or can be fully and electric life controller 36 integrated, for example as the electric life controller module.Memory device 32 can also be the memory device of electric life controller and need not to be the independent memory device of elevator rope control monitor unit.
In addition, be to be understood that, functional component of the present invention, rope control monitor unit for example, processing unit, the oscillation test device, control setup, the frequency monitoring device, amplitude is determined device, comparator and memory device can also be arranged on several positions in the mode that distributes.
Further be to be understood that, except elevator rope, also can monitor band or chain or other bonts by the present invention.
Scope of the present invention is not subject to the restriction of above embodiment but can changes in the scope of independent claims.
Claims (18)
1. the elevator rope control monitor unit (21) of the rope tension of at least one rope that is used for one group of elevator rope of monitoring, this elevator rope control monitor unit comprises rope tension sensor (18a-18e) and is used for the processing unit (22) of the signal of this rope tension sensor, thus, the output signal of described rope tension sensor is fed to this processing unit, it is characterized in that, described processing unit comprises the oscillation test device, and this oscillation test device comprises:
-frequency monitoring device (24), at least one oscillation frequency of the output signal of determining described rope tension sensor, and
-amplitude is determined device (26,28), is used for definite amplitude by at least one definite oscillation frequency of described frequency monitoring device,
Thus, described processing unit (22) is inferred described elevator rope and/or to state or the performance of the influential any elevator components of rope tension tool from described oscillation frequency and/or its amplitude.
2. elevator rope control monitor unit according to claim 1 (21), wherein, described processing unit (22) comprises comparator (30) and memory device (32), this memory device has and the corresponding a plurality of oscillation frequency of the operation of different elevator components and amplitude or the data that derive from these a plurality of oscillation frequency and amplitude, and described deduction is exported thus.
3. elevator rope control monitor unit according to claim 1 and 2 (21), wherein, if oscillation frequency and/or its amplitude or reach preset relation with predetermined reference value, so processing unit (22) beginning predetermined action from the signal that this oscillation frequency and/or its amplitude are derived.
According to claim 2 with 3 described elevator rope control monitor units (21), wherein, described predetermined reference value obtains from memory device (32).
5. according to the described elevator rope control monitor unit of one of aforementioned claim, be used for having one group of independently elevator of elevator rope (14a-14e), wherein said elevator rope control monitor unit comprises the rope tension sensor (18a-18c) for each rope.
According to claim 3 with 5 or 3,4 and 5 described elevator rope control monitor units, wherein, described processing unit (22) surpasses predetermined threshold then produces predetermined action if be adapted for difference between the output signal of different rope tension sensors.
7. according to the described elevator rope control monitor unit of one of aforementioned claim, wherein, described processing unit (22) is configured to the output signal of described rope tension sensor is carried out fft analysis.
8. according to the described elevator rope control monitor unit of one of aforementioned claim, wherein, described frequency monitoring device (24) comprises at least one bandpass filter (25).
9. elevator comprises at least one elevator rope (14a-14e) and according to the described rope control monitor unit of one of aforementioned claim (21).
10. elevator according to claim 9 comprises lift car and/or balance position detecting device (23), and the mouth of described lift car and/or balance position detecting device is connected with the processing unit (22) of described rope control monitor unit (21) thus.
11. according to claim 9 or 10 described elevators, have one group of independently elevator rope (14a-14e), wherein each rope is provided with rope tension sensor (18a-18e).
12. described elevator one of according to claim 9-11, wherein, the control setup of described rope control monitor unit (21) is the part of electric life controller (36) or elevator group controlling device.
13. method that is used for the rope tension of monitoring elevator rope (14a-14e), in the method, rope tension is measured via rope tension sensor (18a-18e), thus the processed information with the state that obtains relevant elevator rope of the output signal of described rope tension sensor
It is characterized in that any vibration of the tension signal of described rope tension sensor is monitored like this:
-output signal by the described rope tension sensor of frequency scanning to be obtaining at least one oscillation frequency, and
-by determining the amplitude of the oscillation frequency that each is determined, from described frequency and amplitude information, infer described elevator rope and/or to state or the performance of the influential elevator components of rope tension tool.
14. method according to claim 13, wherein, for described deduction, the position of lift car and/or counterweight and/or speed and/or acceleration/accel and/or deceleration/decel are measured and considered.
15. according to claim 13 or 14 described methods, wherein, for described deduction, the load of lift car and/or counterweight is considered.
16. the described method of each according to claim 13-15, wherein, described deduction comprises comparison measurement value and predetermined reference value, and if oscillation frequency and/or its amplitude reached with the preset relation of at least one predetermined value then begun predetermined action.
17. the described method of each according to claim 13-16, wherein, during described frequency scanning, be not other frequencies of current checked frequency via filter, preferred bandpass filter (25) is filtered.
18. the described method of each according to claim 13-17, wherein, Fast Fourier Transform (FFT) (FFT) analyzes that the output signal be based on the tension pick-up signal carries out.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2010/057366 WO2011147456A1 (en) | 2010-05-27 | 2010-05-27 | Elevator and elevator rope monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN102906001A true CN102906001A (en) | 2013-01-30 |
| CN102906001B CN102906001B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201080067052.0A Active CN102906001B (en) | 2010-05-27 | 2010-05-27 | Elevator and elevator rope control monitor unit |
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| CN (1) | CN102906001B (en) |
| HK (1) | HK1181370A1 (en) |
| WO (1) | WO2011147456A1 (en) |
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| CN105197835A (en) * | 2015-11-03 | 2015-12-30 | 赛埃孚汽车保修设备（太仓）有限公司 | Steel wire rope anti-breaking device for hoisting machine |
| WO2019141895A1 (en) * | 2018-01-22 | 2019-07-25 | Kone Corporation | Method and apparatus for optimizing the tension of the suspension arrangement of an elevator |
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105705450A (en) * | 2013-11-06 | 2016-06-22 | 三菱电机株式会社 | Elevator diagnosing device |
| CN105705450B (en) * | 2013-11-06 | 2017-09-29 | 三菱电机株式会社 | Elevator diagnosis device |
| CN104709801A (en) * | 2013-12-17 | 2015-06-17 | 通力股份公司 | Elevator |
| CN104709801B (en) * | 2013-12-17 | 2019-10-15 | 通力股份公司 | Elevator |
| WO2016070626A1 (en) * | 2014-11-07 | 2016-05-12 | 中国矿业大学 | On-line detection device and method for tension of suspension ropes or stabilising ropes in construction vertical shaft |
| CN108238527B (en) * | 2016-12-23 | 2019-11-12 | 通力股份公司 | Device and method for elevator rope condition monitoring |
| CN108238527A (en) * | 2016-12-23 | 2018-07-03 | 通力股份公司 | For the device and method of elevator rope condition monitoring |
| CN108861961A (en) * | 2017-05-16 | 2018-11-23 | 奥的斯电梯公司 | The method of tensioning for elevator device bearing carrier |
| US11124384B2 (en) | 2017-05-16 | 2021-09-21 | Otis Elevator Company | Method for tensioning of a load bearing member of an elevator system |
| CN107892223A (en) * | 2017-11-15 | 2018-04-10 | 中南大学 | A kind of hoisting container monitoring system and tension force fault monitoring method |
| CN107892223B (en) * | 2017-11-15 | 2019-04-02 | 中南大学 | A kind of hoisting container monitoring system and tension fault monitoring method |
| CN111483897A (en) * | 2019-01-29 | 2020-08-04 | 奥的斯电梯公司 | Lifting rope monitoring device |
| US11661312B2 (en) | 2019-01-29 | 2023-05-30 | Otis Elevator Company | Hoisting rope monitoring device |
| TWI739512B (en) * | 2019-09-30 | 2021-09-11 | 日商三菱電機股份有限公司 | Elevator rope tension measuring system |
| CN110884978A (en) * | 2019-11-28 | 2020-03-17 | 中北大学 | Device and method for testing tension of steel wire rope of mining friction type elevator |
| CN110884978B (en) * | 2019-11-28 | 2021-01-19 | 中北大学 | Device and method for testing tension of steel wire rope of mining friction type elevator |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102906001B (en) | 2015-08-26 |
| WO2011147456A1 (en) | 2011-12-01 |
| HK1181370A1 (en) | 2013-11-08 |
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