CN209536720U - A kind of elevator wire rope tension variation detection device based on vibration frequency measurement - Google Patents
A kind of elevator wire rope tension variation detection device based on vibration frequency measurement Download PDFInfo
- Publication number
- CN209536720U CN209536720U CN201822135603.9U CN201822135603U CN209536720U CN 209536720 U CN209536720 U CN 209536720U CN 201822135603 U CN201822135603 U CN 201822135603U CN 209536720 U CN209536720 U CN 209536720U
- Authority
- CN
- China
- Prior art keywords
- wire rope
- vibration frequency
- elevator
- tension variation
- mobile terminal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a kind of elevator wire rope tension variation detection devices based on vibration frequency measurement, it include: mobile power source, ICP acceleration transducer, signal gathering analysis meter and mobile terminal, the mobile power source is respectively that signal gathering analysis meter and mobile terminal are powered, the ICP acceleration transducer is connected and inputted vibration acceleration signal with signal gathering analysis meter respectively, the signal gathering analysis meter and mobile terminal carry out wireless or wired connection, the processing of data is carried out using mobile terminal, tension variation is converted by wirerope vibration frequency.Through the above way, elevator wire rope tension variation detection device described in the utility model based on vibration frequency measurement, especially realize that the tension variation of wirerope detects using vibration frequency measurement, it is the integrated level height of device, measurement accuracy height, good portability, easy to operate, and can long-term test constantly, do not influence the normal operation of elevator.
Description
Technical field
The utility model relates to the tension variations of elevator wire rope to detect calculating field, more particularly to one kind based on vibration
The elevator wire rope tension variation detection device of frequency measurement.
Background technique
With the continuous improvement and mankind's activity rhythm that people require living standard in modern city plus
Fastly, people to routine work and life in widely used elevator requirement it is also higher and higher, wherein the side most to merit attention
Face is exactly to require that the safety of elevator is higher and higher, speed is getting faster, it is more and more comfortable to take.Meanwhile it is this requirement also with
Depth of building it is continuous promotion and become more more and more urgent.The elevator speed of application in practice is continuous now
It is soaring, however as the continuous increase of elevator speed, hoisting depth, to the safety of elevator, functionality and comfort these three
For basic performance, opposite " functionality ", the public will further improve the concern of elevator safety and comfort.But from certain
For in terms of kind, elevator speed, hoisting depth and safety, comfort are conflicting, and this contradiction is by draging
What the characteristics of drawing driving elevator itself was determined.This contradiction is solved, it first will be to the dynamic of elevator suspension system itself
Performance characteristics carry out deeply and detailed understanding.
The tracking-driven elevator suspension being made of main components such as traction sheave, wirerope, carriage/counterbalancing systems is promoted
System is a kind of typical Flexible Transmission lifting system.In such systems, it is wound and is produced in traction race by hoist ropes
Raw frictional force provides the direct driving force promoted, guides carriage/counterpoise by hoist ropes flexible (mainly wirerope)
Movement.It can be seen that traction capacity all must strictly be met, because it is traction-type under each working condition
The basis of elevator safety reliability service.In addition, since hoist ropes itself is flexible slender bodies, and length it is bigger its just
Degree is weaker, therefore when the travel speed of elevator is larger, lift stroke is higher, even the external interference of very little is likely to
Entire lifting system is set to generate very big vibration, this is also the one of the major reasons for influencing passenger's Ride safety and comfort.
The traction condition of elevator should meet:For occurring with traction elevator traction capacity
The factor of variation is mainly that equlvalent coefficient of friction f has occurred variation (cornerite a is due to using the variation of wear reason negligible not
Meter).For commonly with the equivalent friction system of notch half slot in GB7588-2003 " elevator manufacture and installation safety standard "
Number formulaThe variation of wirerope diameter directly affects equlvalent coefficient of friction f, so change with
Elevator original traction capacity.And, there is the following: 1. environment in the main reason for leading to steel rope abrasion；2. traction sheave rope groove shape and
Material；3. wirerope internal tension uniformity coefficient；4. suspension ratio；5. operating condition.It can be seen that above-mentioned reason is in addition to wirerope
Other than power, remaining influence factor can not adjust or change substantially after elevator comes into operation.The measurement of steel wire rope tension at present
Based on spring scale manual static measurement, accuracy is very low, especially in skyscraper, the numerical value measured substantially without reference to
Value.And there has been no preferable measurement methods and device for the steel wire rope tension in operational process, and in fact ran
The steel wire rope tension uniformity of journey has bigger influence to steel rope abrasion.
The detection foundation of elevator dragging wire rope tension difference: existing national standards GB7588-2003 " elevator manufacture and installation
Safety standard " it defines in 9.5.1 money and " at least should be equipped with a regulating device in one end of hanging steel rope or chain to be used to put down
Weigh it is each rope or chain tension ".Although specific requirement is not made to the range of tension variation inside GB7588, in GB/
Regulation " should at least be set in one end of hanging steel rope or chain in T10060-2011 " elevator code for erection and inspection " 5.5.1.9 money
Set a self-checking device, for balance it is each rope or interchain tension, make it is any one rope or chain tension and it is all rope or
The deviation of the tension force mean value of chain is no more than 5% ".
Before no test equipment, steel wire rope tension is mainly all detected using vibration wave method or labelling method always both at home and abroad.
Above 2 kinds of methods play important function to the normal operation for guaranteeing rope hoisting system.But since labelling method cannot be determined
Amount, and overtension occur and wirerope is caused labelling method will to be made to cause to judge by accident when sliding on liner.Vibration wave method surveys tension
Although simple and easy, inaccuracy is calculated to vibration wave time of return, precision is lower, is unable to satisfy requirement.
In the 1980s, preceding West Germany GHH company successfully has developed ten rope induction type ring-type flute profile dynamometers, it mainly by
Cage station and earth station's two parts equipment composition.There are induction coil type ring-type flute profile dynamometer, A/D converter, control in cage station
The equipment such as device and transmitter processed, wherein transmitter, which can be realized, uses wirerope to send signal as carrier ground station；Earth station
Have receiver, controller and microprocessor, can real-time display, record wirerope tension variation situation in the process of running,
Has the function of load overload alarm simultaneously.Contemporaneity, ABEA company, Sweden develop the measurement of HAMA, HAMB type dynamic tension
Instrument, it is pasted onto electric-resistance strain ga(u)ge on the dedicated pin type elastic element concatenated with wirerope, which has
The functions such as wireless transmission and receiving, microcomputer quantitative Treatment, number display and the printing of signal.
The development of wire rope tension meter is classified as " the Seventh Five-Year Plan " National Key Research Programs item by the late 1980s, country
Mesh, steel wire rope tension detection technology enter a new developing stage.Fushun Branch of China Coal Research Institute has developed F44 type
Tester for steel cable tension, it by concatenated with wirerope double-shear beam type pin shaft load cell, data acquisition and processing (DAP) device,
DC power supply three parts composition.Shanxi Mining Inst. develops pinch-roller type steel cable tension tester, which uses three
Idler wheel mode artificially makes wirerope generate bending, calculates wirerope to the cross force that intermediate roller generates by measurement wirerope
The Indirect Detecting Method of power.The had developed GS-ZCII shaped steel wire rope tension measuring device of Changchun coal research.
Middle and later periods the 1990s, with the development of non-destructive testing technology, steel wire rope tension detection technology has new
Progress.There is the non-contact non-destructive testing method of steel wire rope tension, so that the detection of steel wire rope tension is from contact to non-
Contact direction is developed.Qingdao Technological University be based on wirerope have the characteristics that twisting stock wave carried out steel wire rope tension electromagnetism without
The research of new detecting method is damaged, and by the verification experimental verification feasibility and practicability of new method, to realize in a non contact fashion
The real-time, online of steel wire rope tension, quantitative detection open a new technological approaches.
General purpose computer is combined with the test of instrument hardware, control function by application program, using interactive mode
Graphical interfaces operates that computer is completed to the acquisition, analysis processing, data of measurement data storage, tasks are current as the result is shown etc.
The developing direction of test equipment.It is limited to the reasons such as portability, the puzzlement of ease for operation and measurement accuracy, above-mentioned introduction
Steel wire rope tension measuring device fail to be used in elevator industry.
Tracking-driven elevator is the most commonly used ladder type in the world today.This elevator mainly have security reliability compared with
High, higher hoisting depth, it is compact-sized the advantages that.This kind of elevator device Vertical Dynamic model by traction machine every machine beam, drag
Draw machine yielding rubber, traction sheave (equivalent traction sheave), steel wire hang system, car frame and car frame resilient cushion, compensation chain,
The part such as rope end spring forms.In practical modeling process, it can specifically be simplified.In modeling, to consider that elevator is
It is no to have compensating chain device and clamping system, it will affect the accuracy of system, in addition, if not considering the rigidity etc. of compensation chain,
Consider its mass property.Steel wire rope tension deviation has a large effect to elevator safety and comfort, and traditional
Power bias measurement method poor operability, precision are low, and can not measure in elevator operation.
Utility model content
The utility model is mainly solving the technical problems that provide a kind of elevator wire rope based on vibration frequency measurement
Power error measuring means, the ease for operation and measurement accuracy of the detection of boom hoist cable tension variation.
In order to solve the above technical problems, the technical solution that the utility model uses is: providing a kind of based on vibration frequency
The elevator wire rope tension variation detection device of rate measurement, comprising: mobile power source, ICP acceleration transducer, signal processing and analysis
Instrument and mobile terminal, the mobile power source are respectively that signal gathering analysis meter and mobile terminal are powered, the ICP acceleration
Sensor is connected and inputted vibration acceleration signal with signal gathering analysis meter respectively, the signal gathering analysis meter and movement
Terminal carries out wireless or wired connection, and the processing of data is carried out using mobile terminal, converts wirerope vibration frequency to and opens
Power deviation.
In one preferred embodiment of the utility model, it is provided with magnet on the ICP acceleration transducer and is adsorbed on
On wirerope.
In one preferred embodiment of the utility model, the mobile power source, signal gathering analysis meter and mobile terminal are put
The car top set in elevator carries out detection work.
In one preferred embodiment of the utility model, the mobile terminal includes but is not limited to laptop.
In one preferred embodiment of the utility model, correspondence is provided on the signal gathering analysis meter and mobile terminal
Wireless transport module or wire transmission module.
In one preferred embodiment of the utility model, the mobile power source includes but is not limited to rechargeable lithium batteries packet.
The beneficial effects of the utility model are: a kind of elevator steel wire based on vibration frequency measurement that the utility model is pointed out
Rope tension error measuring means especially realize that the tension variation of wirerope detects using vibration frequency measurement, the integrated level of device
It is height, measurement accuracy height, good portability, easy to operate, and can long-term test constantly, the operation of elevator is not influenced, by verifying skill
Art is mature, the good reliability used.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings, in which:
Fig. 1 is the basic parameter of embodiment pilot scale electrical verification ladder；
Fig. 2 is the sample frequency setting figure of DASP signal processing software in embodiment；
Fig. 3 is the calibration value setting figure of ICP acceleration transducer in embodiment；
Fig. 4 is the signal acquisition interface of DASP signal processing software；
Fig. 5 is No. 1 wirerope from frequency analysis result；
Fig. 6 is No. 2 wirerope from frequency analysis result；
Fig. 7 is No. 3 wirerope from frequency analysis result；
Fig. 8 is No. 4 wirerope from frequency analysis result；
Fig. 9 is No. 5 wirerope from frequency analysis result；
Figure 10 is a kind of peace of the elevator wire rope tension variation detection device based on vibration frequency measurement of the utility model
Fill schematic diagram.
Specific embodiment
Below by the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only a part of the embodiment of the utility model, instead of all the embodiments.Based on the implementation in the utility model
Example, all other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to
The range of the utility model protection.
Fig. 1~Figure 10 is please referred to, the utility model embodiment includes:
One is randomly selected in the traction passenger lift used as subjects, basic parameter is as shown in Fig. 1, moves
Dynamic terminal 7 selects laptop, mobile flexible, can be placed at the top of the carriage 1 of elevator and measure, mobile power source 2 is adopted
With rechargeable lithium batteries packet, good portability, 5 port of ICP acceleration transducer and 3 grafting of signal gathering analysis meter, ICP acceleration
5 working end of sensor is adsorbed on 5 wirerope 6 of elevator respectively using magnet 4, after the completion of connection, opens mobile terminal
In DASP signal processing software, original state need to be set, mainly the calibration value of sample frequency and each sensor is configured.
Confirmation setting is correct, and click signal samples button, and it is any that 5 wirerope are gently tapped with rigid objects (such as spanner)
There is acquisition vibration acceleration waveform in position, after it is stablized, primary complete vibration sampling is completed, in mobile terminal
DASP signal processing software self-frequency analytic function, can show that the vibration frequency spectrogram of each wirerope (obtains every
The vibration frequency of wirerope), since elevator wire rope is very long, energy has focused largely on the 1st rank, therefore the 1st rank can be taken to shake
Dynamic frequency is calculated.
It will test resulting the 1st rank vibration frequency of each wirerope and be listed in table 1:
Table 1, each the 1st rank vibration frequency of wirerope
According to the tension variation formula (11) of each wirerope:
WhereinIt can be calculated by the data in table 1, by the elevator basic parameter in Fig. 1, it is known that formula
(11) known quantity needed in:
Wirerope linear mass m=0.218kg/m；
Test rope capacity l=29.6m；
Wirerope quantity K=5；
For for the 1st rank feature load F of wirerope1, it can be calculated by formula (4):
When the 1st rank being taken to be calculated,
For constant therein:
According to the design requirement of elevator manufacturer, elastic modulus E=2 × 1011Pa；
The moment of inertiaHere d approximation takes wirerope diameter 8mm to be counted
It calculates.
According to formula (4-1), the 1st rank feature load of wirerope can be obtained are as follows: F1=0.45N.
Finally, known quantity is substituted into formula (11), the tension variation of each wirerope can be calculated, as shown in table 2:
Table 2, each steel wire rope tension deviation (considering the 1st rank feature load)
It can see from calculating process, feature load F1It is very small for the load value on every wirerope
, it can be ignored when application formula (11) carries out tension variation calculating.So, formula (11) can be expressed as:
As it can be seen that the final result of steel wire rope tension deviation is only related with the vibration frequency that measurement obtains, by each steel in table 1
The 1st rank vibration frequency of cord substitutes into formula (12), and the tension variation of each wirerope can be calculated, as shown in table 3:
Each steel wire rope tension deviation of table 3 (ignoring the 1st rank feature load)
Deviation in table 3 is consistent with 2 respective value of table, shows the vibration for only needing to measure wirerope in practical applications
Dynamic frequency requires no knowledge about other constants, so that it may the tension variation value of each wirerope be calculated according to formula (12), and real
Result in example meet specified in GB/T 10060-2011 " elevator code for erection and inspection " 5.5.1.9 money " any rope or
The deviation of the tension force mean value of the tension of chain and all ropes or chain is required no more than 5% ", demonstrates grasping for the utility model
The property made and correctness.
In conclusion a kind of elevator wire rope tension variation detection based on vibration frequency measurement that the utility model is pointed out
Device can obtain the tension variation value of each wirerope by the verifying of embodiment according to the survey calculation of vibration frequency really,
The complexity for simplifying detection device improves the operation ease and accuracy of the detection of elevator wire rope tension variation, just
The property taken is good, periodic detection and running lasting detection suitable for tracking-driven elevator steel wire rope tension deviation.
The above description is only the embodiments of the present invention, and therefore it does not limit the scope of the patent of the utility model, all
Using equivalent structure or equivalent flow shift made by the utility model description, it is applied directly or indirectly in other phases
The technical field of pass, is also included in the patent protection scope of the utility model.
Claims (6)
1. a kind of elevator wire rope tension variation detection device based on vibration frequency measurement, the steel wire rope tension for carrying out elevator are inclined
Difference detection characterized by comprising mobile power source, ICP acceleration transducer, signal gathering analysis meter and mobile terminal, it is described
Mobile power source is respectively that signal gathering analysis meter and mobile terminal are powered, the ICP acceleration transducer respectively with signal
Acquisition and analysis instrument is connected and inputted vibration acceleration signal, the signal gathering analysis meter and mobile terminal carry out it is wireless or
Wired connection is carried out the processing of data using mobile terminal, converts tension variation for wirerope vibration frequency.
2. the elevator wire rope tension variation detection device according to claim 1 based on vibration frequency measurement, feature
It is, is provided with magnet on the ICP acceleration transducer and adsorbs on a steel cord.
3. the elevator wire rope tension variation detection device according to claim 1 based on vibration frequency measurement, feature
It is, the car top that the mobile power source, signal gathering analysis meter and mobile terminal are placed on elevator carries out detection work.
4. the elevator wire rope tension variation detection device according to claim 1 based on vibration frequency measurement, feature
It is, the mobile terminal includes but is not limited to laptop.
5. the elevator wire rope tension variation detection device according to claim 1 based on vibration frequency measurement, feature
It is, corresponding wireless transport module or wire transmission module is provided in the signal gathering analysis meter and mobile terminal.
6. the elevator wire rope tension variation detection device according to claim 1 based on vibration frequency measurement, feature
It is, the mobile power source includes but is not limited to rechargeable lithium batteries packet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822135603.9U CN209536720U (en) | 2018-12-19 | 2018-12-19 | A kind of elevator wire rope tension variation detection device based on vibration frequency measurement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822135603.9U CN209536720U (en) | 2018-12-19 | 2018-12-19 | A kind of elevator wire rope tension variation detection device based on vibration frequency measurement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209536720U true CN209536720U (en) | 2019-10-25 |
Family
ID=68264989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822135603.9U Active CN209536720U (en) | 2018-12-19 | 2018-12-19 | A kind of elevator wire rope tension variation detection device based on vibration frequency measurement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209536720U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573769A (en) * | 2018-12-19 | 2019-04-05 | 江苏省特种设备安全监督检验研究院 | A kind of elevator wire rope tension variation detection method based on vibration frequency measurement |
| CN111523443A (en) * | 2020-04-21 | 2020-08-11 | 广州广日电梯工业有限公司 | Elevator steel wire rope and identification method and identification system thereof |
| CN114715752A (en) * | 2022-06-08 | 2022-07-08 | 凯尔菱电（山东）电梯有限公司 | Abnormity detection method and system for elevator |
| DE102023100019A1 (en) | 2023-01-02 | 2024-01-18 | Tk Elevator Innovation And Operations Gmbh | Elevator device with drive-based implemented traction mechanism vibration damping as well as corresponding method and use |
-
2018
- 2018-12-19 CN CN201822135603.9U patent/CN209536720U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109573769A (en) * | 2018-12-19 | 2019-04-05 | 江苏省特种设备安全监督检验研究院 | A kind of elevator wire rope tension variation detection method based on vibration frequency measurement |
| CN111523443A (en) * | 2020-04-21 | 2020-08-11 | 广州广日电梯工业有限公司 | Elevator steel wire rope and identification method and identification system thereof |
| CN114715752A (en) * | 2022-06-08 | 2022-07-08 | 凯尔菱电（山东）电梯有限公司 | Abnormity detection method and system for elevator |
| DE102023100019A1 (en) | 2023-01-02 | 2024-01-18 | Tk Elevator Innovation And Operations Gmbh | Elevator device with drive-based implemented traction mechanism vibration damping as well as corresponding method and use |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN209536720U (en) | A kind of elevator wire rope tension variation detection device based on vibration frequency measurement | |
| CN105035899B (en) | A kind of elevator debugging method based on smart mobile phone | |
| CN102674102B (en) | Detector for elevator balance coefficient | |
| CN105021336B (en) | A kind of test platform to steel wire rope tension balance wireless monitor system calibration | |
| CN100391821C (en) | Method for measuring balance coefficient of elevator | |
| CN102674103B (en) | Method for detecting elevator balance coefficient | |
| CN105819293B (en) | A kind of balance coefficient of elevator measurement method | |
| CN105173946A (en) | Elevator no-load dynamic balance coefficient detector | |
| CN204831668U (en) | Test platform to balanced wireless monitoring system calibration of wire rope tension | |
| CN105060048B (en) | The detection method and detector of permanent-magnet synchronous towed elevator coefficient of balance | |
| CN102198903A (en) | Method and instrument for comprehensively detecting energy consumption of elevator | |
| CN109573769A (en) | A kind of elevator wire rope tension variation detection method based on vibration frequency measurement | |
| CN109733971A (en) | Balance coefficient of elevator detection device and its method | |
| CN105527083B (en) | A kind of elevator governor responsiveness tester and method | |
| CN201163230Y (en) | Device for measuring elevator balance factor by torsion-testing method | |
| CN208308166U (en) | Elevator load tests TT&C system | |
| CN108328445A (en) | A kind of check method of balance coefficient of elevator | |
| CN106516925A (en) | Elevator balance coefficient detector | |
| CN105486264B (en) | The measurement method of crane brake downslide flowmeter based on acceleration transducer | |
| CN106829681A (en) | A kind of elevator brake friction torque test method | |
| CN208166264U (en) | Balance coefficient of elevator detection device | |
| CN202046772U (en) | Integrated detector for elevator energy consumption | |
| CN109342007A (en) | A kind of crane capability of anti-wind detection system and method | |
| CN209618607U (en) | Balance coefficient of elevator detection device | |
| CN205906841U (en) | Detection apparatus for elevator equilibrium coefficient |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |