CN100391821C - Method for measuring balance coefficient of elevator - Google Patents
Method for measuring balance coefficient of elevator Download PDFInfo
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- CN100391821C CN100391821C CNB2005100756236A CN200510075623A CN100391821C CN 100391821 C CN100391821 C CN 100391821C CN B2005100756236 A CNB2005100756236 A CN B2005100756236A CN 200510075623 A CN200510075623 A CN 200510075623A CN 100391821 C CN100391821 C CN 100391821C
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Abstract
The present invention relates to a method for measuring the balance coefficient of an elevator. The present invention adopts a method of loading measurement without weight. The present invention comprises the steps of collecting and treating detection signals of a sensor. Vertical cable wires are hooked by wire hooks at both ends of a cable wire measuring device respectively at the car end and the counterweight end. A screw pusher rotates clockwise to drive the sensor, and at this time, one detection signal of the sensor is output; the signal is processed via a data collection device, transmitted data is treated by a host computer and software, and the weight of the counterweight and the car is deduced; the balance coefficient of an elevator is calculated via the mechanics fundamental formula of the balance coefficient of an elevator, and a measurement report is printed by a printer. The present invention breaks through the measuring principle and the measuring clew of the balance coefficient of a traditional elevator, provides a fire-new clew and a development direction, reduces the labor strength of a measuring person, shortens measuring time and enhances work efficiency.
Description
Technical field
The present invention relates to the elevator detection range, particularly a kind of method of measurement of balance coefficient of elevator.
Background technology
As everyone knows, when the car of elevator and load and counterweight were in the complete equilibrium state, traction only need overcome steel rope with the static pressure friction force between the traction sheave, and elevator just can move easily.At this moment, the accuracy of elevator traveling comfort, flat bed etc. all is in optimum regime, comfortable, safe, reliable and help energy efficient and prolong service life of each parts, therefore, the choosing of balance coefficient of elevator should make the elevator can be near optimum Working as far as possible., improper between the equilibrium factor of elevator should be 40%～50% if balance coefficient of elevator is selected for qualified, not only influence power and leveling accuracy that elevator device consumes, also be to cause elevator to rush to summit, hit one of the major reason at the end.
Balance coefficient of elevator is one of elevator important characteristic parameter, also is the essential items for inspection of acceptance of lift check, supervision and inspection.Method of in standard GB/T10059-1997 " elevator experimental technique " and the State General Administration for Quality Supervision's " elevator supervision and inspection rules " balance coefficient of elevator being tried to achieve and requirement at present all has clear and definite explanation.The method of regulation is that car carries 0,25%, 50%, 75%, 100% rated load respectively in " elevator supervision and inspection rules ", carry out along omnidistance straight commissioning test electric current, voltage or velocity amplitude when writing down the car up-downgoing respectively extremely with the same horizontal surface of counterweight.By current measurement and in conjunction with velocity measurement, do electric current-load curve or speed-load curve for alternating-current motor/AC motor, determine balance coefficient of elevator with upper and lower run curve intersection point, electric current is used pincers type amperemeter/ammtr from the alternating-current motor/AC motor input end measuring.By current measurement and in conjunction with voltage measurement, do electric current-load curve or voltage-load curve for DC motor, determine balance coefficient of elevator.The method of stipulating in GB is basic identical with the method in the inspection rule, two kinds of operating modes during just many 40%, 110% rated loads.
Through looking into newly Anhui Province HeFei University of Technology application (patent) number 98250765.8 denominations of invention: balance coefficient of elevator automatic measuring instrument on the net.
This utility model relates to a kind of instrument of measuring elevator equilibrium system, it is to utilize Hall element to catch the moment that lift car and counterweight fag end are crossed same horizontal surface automatically, thereby realized the automatic collection of correlation parameter, and success utilize math block, realized finding the solution to the parameter-description of load change curve and the simultaneous equations of equilibrium factor, reach and get rid of manual intervention fully, improved precision and the efficient measured.
Its technical characterictic: comprise that fag end crosses same horizontal surface monitoring channel constantly, the ac current measurement passage, the dc voltage measurement passage, elevator traction wheel disc side is provided with a permanent-magnet steel, two Hall elements of installing on the Hose support, the measurement passage of alternating current is drawn hall signal by pocket digital pincerlike meter and is sent into AC electric current A/D passage, read-out information is also stored, by the software tutorial program, the direction of Computer Automatic Recognition cage operation and arrive upper and lower measuring junction station revolution is carried out synchronous data sampling by the parameter measurement passage; Gather the signal of acquisition and after the connection interface conditioning, send into microprocessor CPU, read in computing machine and storage and processing, realize load---description of parametric line also solves loading factor---balance coefficient of elevator by math block through the A/D conversion.
The weak point of this patent is: its basic test principle of this patent still adopts traditional test method, be that car carries 0,25%, 50%, 75%, 100% rated load respectively, carry out along omnidistance straight commissioning test electric current, voltage or velocity amplitude when writing down the car up-downgoing respectively extremely with the same horizontal surface of counterweight.By current measurement and in conjunction with velocity measurement, do electric current-load curve or speed-load curve for alternating-current motor/AC motor, determine equilibrium factor with upper and lower run curve intersection point.Electric current is used pincers type amperemeter/ammtr from the alternating-current motor/AC motor input end measuring.By current measurement and in conjunction with voltage measurement, do electric current-load curve or voltage-load curve for DC motor, determine equilibrium factor.Owing to use counterweight to carry out repeatedly load test stabilization, brought the work capacity and the cost test duration of loading and unloading.
Its patent only is that electric current, voltage or the velocity amplitude that will need manually read in the former method become instrument and read automatically, needs artificial judgment equilibrium point and the artificial corresponding figures spectral curve of drawing to change by instrument and judge automatically and draw in the former method.
Summary of the invention
For remedying the deficiency of present common practice effectively, improve the measuring accuracy of balance coefficient of elevator, the objective of the invention is to realize a kind of method of measurement of balance coefficient of elevator, it is a kind of method of no-load test balance coefficient of elevator, respectively at car end and counterweight end, rope hook with steel rope measurement mechanism two ends catches on vertical steel rope, the clickwise spiral propeller advances sensor, make sensor that a detection signal output be arranged, carry out signal conditioning by data trap, master system carries out the intellectuality screening to transmitting the data of coming, analyze, calculate, handle, derive car weight and counterweight weight, the mechanics fundamental formular by balance coefficient of elevator calculates balance coefficient of elevator then.
Technical scheme of the present invention is: a kind of method of measurement of balance coefficient of elevator, and comprise the collection of sensor signal and it is handled, it is characterized in that:
Data trap at first is set when measuring beginning, the operation that the Object Selection that detects according to pick-up transducers will be carried out, be to measure car end steel wire rope tension or measure counterweight end steel wire rope tension or caliberating device, and count according to the measurement that on-the-spot elevator situation is set radical, diameter and the same steel rope of steel rope, the steel wire rope tension measurement mechanism can be pressed the arbitrarily angled rotation of horizontal direction on the steel rope cross-sectional plane, by the some point measurements of angle average mark, being reduced to minimum because the steel rope cross-sectional plane is not justified the error that causes.
With car, to beating again to level position, catch on vertical steel rope with the monosymmetric rope hook of the tension measuring device of steel rope, the spiral propeller at clickwise middle part is installed in the steel wire rope tension measurement mechanism on the steel rope that tension force mixed well, on three ends of steel wire rope tension measurement mechanism and basis that steel rope to be measured contacts, the end that the spiral propeller at continuation clickwise middle part has middle-end the sensor of high resistance wire grid strain-gauge measuring bridge is advanced to the qualification position to steel rope direction to be measured, at this moment, sensor has a detection signal output, steel wire rope tension is big, the detection signal height of output.
Detection signal is carried out data handing: the data that convert digital quantity to are handled, promptly, sorted by size, after casting out end to end each data of four times, ask its average and ask its variance for the data of tension force.
Data trap receives the detection signal of the sensor that comes by cable transmission, by amplifier this detection signal is carried out shaping, filtering, amplitude limit amplification then, convert thereof into digital quantity through the A/D translation circuit again, send LCD display to show and by flash memory stores, the micro controller system keyboard scan, and carry out the inside solidification program write, the data classification that test counterweight, car, demarcation are obtained and storing automatically respectively, the detection data that data trap is gathered after end of test (EOT) by USB interface to the upper computer system transmissions.
Upper computer and software (20) are analyzed the data that transmit, judge abnormal data by theory of fuzzy mathematics, after affirmation and identification, reject, rule of thumb the method for formula and theory of chances is carried out assignment again simultaneously, the intact back of data handing is by the basic mechanical definition of balance coefficient of elevator and blur correction analysis, handle, and obtains balance coefficient of elevator.
Detection signal is handled: record the tension force of car end and counterweight end steel rope by the steel wire rope tension measurement mechanism, derive car weight and counterweight weight, the mechanics fundamental formular by balance coefficient of elevator calculates balance coefficient of elevator K
Flat
The mathematic(al) representation that balance coefficient of elevator calculates is: K
Flat=(W
1-W)/Q
Wherein: Q: elevator rated load (kg);
W: car weight (kg);
W
1: counterweight weight (kg);
K
Flat: balance coefficient of elevator;
The method of measurement idiographic flow of balance coefficient of elevator is:
1., measure the tension force of every steel rope of car end and counterweight end respectively with elevator steel wire rope tension measurement mechanism, when the even tension degree error of steel rope surpasses ± 5%, tension measuring device on-line measurement with elevator wire rope is adjusted, the steel rope that tension force is big is transferred pine, the steel rope little tension force tightens, and makes its evenness errors in ± 5%;
2., measure the tension force of each root steel rope in the car end, on keyboard, press the registration confirmed key, the data that this moment, data trap collected send LCD display to show and by flash memory stores;
3., adding on the car that the known entity of weight is tested the tension force of each root steel rope again and by the registration confirmed key on the lower keyboard, the data that this moment, data trap collected send LCD display to show and by flash memory stores;
4., measure the tension force of each root steel rope of counterweight end, and press the registration confirmed key on the keyboard of data trap, the data that this moment, data trap collected send LCD display to show and by flash memory stores;
5., connect data trap and master system with the USB line, open the gravimetric value and the elevator base load rating of software, input known entities, data after handling are sent to the output unit of computing machine, and the result of a measurement of balance coefficient of elevator then shows on upper computer.
Described sensor feed adjustable length, make sensor adapt to measure the steel rope of φ 8～φ 13mm diameter.
Described spiral propeller adopts steep-pitch thread, and the fltting speed when measuring to improve also guarantees that the central axis of screw thread and the axis of sensor overlap, and spiral propeller advances sensor the distance of 12～15mm.
Described detection signal is the detection signal of many steel ropes of the detection signal of single wire rope or classification and storage.
The spacing of monosymmetric rope hook is 412mm on the described steel wire rope tension measurement mechanism.
The invention has the beneficial effects as follows:
What 1, the present invention adopted is no counterweight load test method, promptly by measuring the weight that the elevator wire rope tensile force accurately calculates lift car and counterweight, basic mechanical formula according to balance coefficient of elevator draws equilibrium system numerical value accurately, this method has broken through traditional elevator equilibrium factor testing principle and thinking, and (detect used this method and traditional current method is compared in National Laboratory Shenzhen special equipment quality safety, see the contrast test in the specific embodiment through experiment.) prove and test effect preferably.
2, the present invention has got rid of the error that indirectly testing brings owing to adopted the method test of fundamental mechanics basic definition, makes test more accurate.And traditional electric current rule is by measuring the horsepower output that the hoisting motor stator current reaches the approximate measure electrical motor indirectly, existing more error component.
3, owing to not re-using counterweight, this method do not carry out repeatedly load test stabilization, thereby avoided the transportation of 110% nominal payload counterweight in the conventional test methodologies, the work capacity of loading and unloading and the time of cost, alleviated greatly the tester labour intensity, shortened the test duration, improved work efficiency.
4, the present invention has adopted intelligent control technology, has used multiple mathematical tools such as fuzzy mathematics, theory of chances, matheematical equation, and the analyzing and processing of data is had more advance, and reasonableness, test result are more near true value.Got rid of in the conventional test methodologies drafting at electric current-load curve, equilibrium point time determine and this time point on electric current (voltage) value the error that the aspect is brought owing to human element such as accurately read.
5, the sensor in the steel wire rope tension measurement mechanism of the present invention has all been paid attention to light-duty and miniaturization when design and the selection of material, and in measurement, the weight of device can be ignored to the influence of elevator device.
6, the even tension degree of many steel ropes of all right on-the-spot test elevator of the present invention is a kind of effective tool of the stressed even requirement of online adjustment steel rope.
Description of drawings
Fig. 1 is a balance coefficient of elevator method of inspection scheme drawing of the present invention;
Fig. 2 steel wire rope tension measurement mechanism constructional drawing;
Fig. 3 data trap block scheme;
Fig. 4 master system block scheme;
The online detection scheme drawing of Fig. 5 steel wire rope tension measurement mechanism.
The specific embodiment:
In Fig. 1 and Fig. 2, steel wire rope tension measurement mechanism 10 comprises sensor 1, rope hook 2, spiral propeller 3, guide rod 4, screw pedestal 5, transition block 6, spring 7, steel rope 8, cable 9, data trap 19.
Steel wire rope tension measurement mechanism 10 matrix adopting aluminum alloy materials make it in light weight, have all paid attention to light-duty and miniaturization when design and the selection of material, and in measurement, the weight of device can be ignored to the influence of elevator device.
Wherein sensor 1 adopts ring-like pressure structure, be fixed on the rod end that is horizontally disposed guide rod, select for use good springiness, the little alloy steel of creep to make basis material, after the moulding again through heat treatment and surface treatment, should improve, resist inclined to one side ability strength to paste high resistance wire grid strain-gauge at the annulus medium position, constitute measuring bridge, make it to have higher anti-bias energy.Sensor 1 feed adjustable length, make sensor 1 be adapted to measure the steel rope of φ 8～φ 13mm diameter.Overload capacity is 150%, repeatability, good linearity.
Two rope hooks 2 that are connected with steel rope 8 are distributed in the two ends of the axis of spiral propeller 3 symmetrically, and the designed size of rope hook 2 is convertible, to adapt to the steel rope of measuring different-diameter.
The head of rope hook 2 adopts Hardmetal materials to make, and has carried out heat treatment and surface treatment with steel rope 8 contacts site, reduces the friction force with steel rope 8, and it is indeformable to have a durability.
Screw pedestal 5 is fixed on the matrix, and two guide rods 4 insert in the hole of screw pedestal 5, and transition block 6, sensor 1 all move back and forth in the scope of guide rod 4 restrictions, and the thrust that moves is from spiral propeller 3.
The effect of spring 7 is to make moving and sensor 1 same moved further of spiral propeller 3.
In Fig. 3, data trap 19 is a core with micro controller system 15, and its peripheral circuit comprises amplifying circuit 11, A/D translation circuit 12, LCD display 13, flash memory 14, keyboard 16, power supply 17 and the usb 18 of accepting detection signal.
Described data trap 19 receives the next detection signal of cable 9 transmission and carries out shaping by 11 pairs of detection signals of amplifier, filtering, amplitude limit amplifies, A/D translation circuit 12 converts thereof into digital quantity, send LCD display 13 to show and store by flash memory 14, micro controller system 15 keyboard scans 16, and carry out the inside solidification program write, test counterweight respectively, car, the data that obtain classification of demarcating and storage automatically, power supply 17 is to data trap 19 supply of electrical energy and to sensor 1 power supply, usb 18 is serial protocol interfaces a kind of and upper computer and software 20 communications, and the data that data trap 19 is gathered are transmitted to master system 22 by usb 18 after end of test (EOT).
In Fig. 4, master system 22 comprises upper computer and software 20 and chopping machine 21, and upper computer and software 20 are connected with the usb 18 usefulness USB on lines of data trap 19, carry out data communication.It is according to car that data trap catches data, counterweight and demarcation are divided into three groups, respectively these three other data are compared, Bayesian decision method according to the minimal error rate in the Bayesian decision theory is judged abnormal data, obtain the efficiently sampling data through affirmation with after rejecting, then according to wirerope diameter, story height, elevator speed, the factor of aspects such as the base load rating of elevator selects corresponding experience parameter k (k is a certain value between the 0.75-1.25) that the efficiently sampling data are weighted (be about to the efficiently sampling data and be multiplied by empirical parameter k) processing, obtains final car respectively, the sampled value of counterweight and three groups of demarcation.Use calibration mass divided by demarcating the proportionality coefficient that sampled value is determined then, this coefficient be multiply by car 23 respectively and counterweight 25 sampled values just can obtain car weight W, counterweight weight W 1, at last according to balance coefficient of elevator computational mathematics expression formula K flat=(W1-W)/Q calculates, the balance coefficient of elevator result is presented on upper computer and the software 20, goes out test report by the a/s format print of print routine simultaneously.
In Fig. 5, traction motor 24 is as the power of elevator lifting, the weight of car 23 is W, it is shared by three steel ropes, the tension force that is subjected to respectively is W1, W2, W3, the weight P of same counterweight 25 is also shared by P1, P2, P3, supposes the rated load Q=800kgf of this elevator, provides the sample calculation by the definition of balance coefficient of elevator basic mechanical below:
W
1=296kgf, W
2=307kgf, W
3=301kgf, then:
W=W
1+ W
2+ W
3=904kgf is in like manner:
P
1=580kgf, P
2=591kgf, P
3=578kgf, then:
P＝P
1+P
2+P
3＝1749kgf
K＝(P-W)/Q＝(1749-904)/800＝45％
Embodiment: the idiographic flow of balance coefficient of elevator method of measurement is:
1., measure the tension force of every steel rope of car end and counterweight end respectively with elevator steel wire rope tension measurement mechanism, when the even tension degree error of steel rope surpasses ± 5%, tension measuring device on-line measurement with elevator wire rope is adjusted, the steel rope that tension force is big is transferred pine, the steel rope little tension force tightens, and makes its evenness errors in ± 5%;
2., measure the tension force of each root steel rope in the car end, on keyboard, press the registration confirmed key, the data that this moment, data trap collected send LCD display to show and by flash memory stores;
3., adding on the car that the known entity of weight is tested the tension force of each root steel rope again and by the registration confirmed key on the lower keyboard, the data that this moment, data trap collected send LCD display to show and by flash memory stores;
4., measure the tension force of each root steel rope of counterweight end, and press the registration confirmed key on the keyboard of data trap, the data that this moment, data trap collected send LCD display to show and by flash memory stores;
5., connect data trap and master system with the USB line, open the gravimetric value and the elevator base load rating of software, input known entities, data after handling are sent to the output unit of computing machine, and the result of a measurement of balance coefficient of elevator then shows on upper computer;
6., enable printer 21, on software interface, click " printing " button, test report is come out a/s format print.
Contrast experiment: detect used this method and traditional current method is compared in National Laboratory Shenzhen special equipment quality safety, adopt two kinds of methods, the equilibrium factor of same elevator is detected:
1. use the method for inspection of intelligent tester;
2. adopt predetermined electric current method in " elevator supervision and inspection rules ".
The principal parameter of detected elevator:
Elevator model: X021VF; Elevator type: passenger elevator; Nominal payload: 800kg;
Command speed: 1.75m/s; The number of standing: 18 layers/18 stations.
Testing result:
1. use the intelligent tester testing result: car weight 1316kg, counterweight weight 1703kg detects time spent 20min, equilibrium factor 48.4%.
2. adopt the current method testing result:
Interpretation of result:
Use the testing result and the current method of intelligent tester only to differ 0.4%, both are very approaching.Proof has and tests effect preferably, thereby provides a brand new thinking and possible developing direction for the Study of test method and the development of balance coefficient of elevator.
Claims (5)
1. the method for measurement of a balance coefficient of elevator comprises the collection of sensor (1) detection signal and it is handled, and it is characterized in that:
1.1, data trap (19) at first is set when measuring beginning, the operation that will carry out according to the Object Selection of pick-up transducers (1) detection is to measure car (23) end steel rope (8) tension force or measure counterweight (25) end steel rope (8) tension force or caliberating device, and set the radical of steel rope (8) according to on-the-spot elevator situation, the measurement of diameter and same steel rope (8) is counted, steel wire rope tension measurement mechanism (10) can be pressed the arbitrarily angled rotation of horizontal direction on steel rope (8) cross-sectional plane, by the some point measurements of angle average mark, being reduced to minimum because steel rope (8) cross-sectional plane is not justified the error that causes;
With car (23), counterweight (25) is beaten to level position, the monosymmetric rope hook of tension measuring device (10) (2) with steel rope catches on vertical steel rope (8), the spiral propeller (3) at clickwise middle part is installed in steel wire rope tension measurement mechanism (10) on the steel rope (8) that tension force mixed well, on three ends of steel wire rope tension measurement mechanism (10) and basis that steel rope to be measured (8) contacts, the end that the spiral propeller (3) at continuation clickwise middle part has middle-end the sensor (1) of high resistance wire grid strain-gauge measuring bridge is advanced to the qualification position to steel rope to be measured (8) direction, at this moment, sensor (1) has a detection signal output, steel rope (8) tension force is big, the detection signal height of output;
1.2, detection signal is carried out data handing: the data that convert digital quantity to are handled, promptly, are sorted by size, after casting out end to end each data of four times, ask its average and ask its variance for the data of tension force;
Data trap (19) receives the detection signal of the sensor (1) that comes by cable (9) transmission, by amplifier (11) this detection signal is carried out shaping then, filtering, amplitude limit amplifies, convert thereof into digital quantity through A/D translation circuit (12) again, send LCD display (13) to show and store by flash memory (14), micro controller system (15) keyboard scan (16), and carry out the inside solidification program write, respectively to test counterweight (25), car (23), data classification that demarcation obtains and storage automatically, the detection data that data trap (19) is gathered are transmitted to master system (22) by USB interface (18) after end of test (EOT);
Upper computer and software (20) are analyzed the data that transmit, judge abnormal data by theory of fuzzy mathematics, after affirmation and identification, reject, rule of thumb the method for formula and theory of chances is carried out assignment again simultaneously, the intact back of data handing is by the basic mechanical definition of balance coefficient of elevator and blur correction analysis, handle, and obtains balance coefficient of elevator;
1.3, detection signal is handled: record the tension force that car (23) end and counterweight (25) are held steel rope by steel wire rope tension measurement mechanism (10), derive car weight and counterweight weight, it is flat that the mechanics fundamental formular by balance coefficient of elevator calculates balance coefficient of elevator K;
The mathematic(al) representation that balance coefficient of elevator calculates is: K
Flat=(W
1-W)/Q
Wherein: Q: elevator rated load (kg);
W: car weight (kg);
W
1: counterweight weight (kg);
K
Flat: balance coefficient of elevator;
1.4, the method for measurement idiographic flow of balance coefficient of elevator is:
1., measure the tension force of every steel rope of car (23) end and counterweight (25) end respectively with elevator steel wire rope tension measurement mechanism (10), when the even tension degree error of steel rope surpasses ± 5%, tension measuring device (10) on-line measurement adjustment with elevator wire rope, the big steel rope of tension force (8) is transferred pine, the little steel rope of tension force (8) is tightened, make its evenness errors in ± 5%;
2., measure the tension force of each root steel rope (8) in car (23) end, on keyboard (16), press the registration confirmed key, the data that data trap this moment (19) collects are sent LCD display (13) to show and are stored by flash memory (14);
3., go up to add at car (23) that the known entity of weight is tested the tension force of each root steel rope again and by the registration confirmed key on the lower keyboard (16), the data that data trap this moment (19) collects are sent LCD display (13) to show and stored by flash memory (14);
4., measure the tension force of each root steel rope of counterweight (25) end, and press the registration confirmed key on the keyboard (16) of data trap (19), the data that data trap this moment (19) collects are sent LCD display (13) to show and are stored by flash memory (14);
5., connect data trap (19) and master system (22) with the USB line, open the gravimetric value and the elevator base load rating of software, input known entities, data after handling are sent to the output unit of computing machine, and the result of a measurement of balance coefficient of elevator then shows on upper computer and software (20).
2. according to the method for measurement of the described a kind of balance coefficient of elevator of claim 1, it is characterized in that: described sensor (1) feed adjustable length, make sensor (1) adapt to measure the steel rope (8) of φ 8～φ 13mm diameter.
3. according to the method for measurement of the described a kind of balance coefficient of elevator of claim 1, it is characterized in that: described spiral propeller (3) adopts steep-pitch thread, fltting speed when measuring to improve also guarantees that the central axis of screw thread and the axis of sensor (1) overlap, and spiral propeller (3) advances sensor (1) distance of 12～15mm.
4. according to the method for measurement of the described a kind of balance coefficient of elevator of claim 1, it is characterized in that: described detection signal is the detection signal of the many steel ropes (8) of the detection signal of single wire rope (8) or classification and storage.
5. according to the method for measurement of the described a kind of balance coefficient of elevator of claim 1, it is characterized in that: the spacing that described steel wire rope tension measurement mechanism (10) is gone up monosymmetric rope hook (2) is 412mm.
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|---|---|---|---|
| CNB2005100756236A CN100391821C (en) | 2005-05-31 | 2005-05-31 | Method for measuring balance coefficient of elevator |
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|---|---|---|---|
| CNB2005100756236A CN100391821C (en) | 2005-05-31 | 2005-05-31 | Method for measuring balance coefficient of elevator |
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| JP5067734B2 (en) * | 2008-01-04 | 2012-11-07 | 東芝エレベータ株式会社 | Elevator rope tension adjustment method |
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| CN102070052B (en) * | 2010-09-01 | 2013-02-06 | 上海市特种设备监督检验技术研究院 | Method and device for measuring balance coefficient of elevator |
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| CN102607756B (en) * | 2012-03-27 | 2014-01-22 | 申龙电梯股份有限公司 | Elevator steel wire rope tension detection device |
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| CN112093621B (en) * | 2020-08-27 | 2023-03-10 | 张学伦 | Tension measuring instrument and application thereof in measuring balance coefficient and compensation effect of elevator |
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| CN2185433Y (en) * | 1994-03-07 | 1994-12-14 | 山西矿业学院 | Dynamic measurer for tension of steel wire rope |
| CN2581390Y (en) * | 2002-08-09 | 2003-10-22 | 安徽中科智能高技术有限责任公司 | On line tension measurer for wire rope |
| CN2607564Y (en) * | 2003-04-01 | 2004-03-24 | 郭群 | Wirerope tension meter |
-
2005
- 2005-05-31 CN CNB2005100756236A patent/CN100391821C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2185433Y (en) * | 1994-03-07 | 1994-12-14 | 山西矿业学院 | Dynamic measurer for tension of steel wire rope |
| CN2581390Y (en) * | 2002-08-09 | 2003-10-22 | 安徽中科智能高技术有限责任公司 | On line tension measurer for wire rope |
| CN2607564Y (en) * | 2003-04-01 | 2004-03-24 | 郭群 | Wirerope tension meter |
Non-Patent Citations (2)
| Title |
|---|
| FP系列PLC电梯控制系统平衡系数特性分析. 李安伏，秦长海，李晓红.安阳师范学院学报，第2005年第2期. 2005 |
| FP系列PLC电梯控制系统平衡系数特性分析. 李安伏，秦长海，李晓红.安阳师范学院学报，第2005年第2期. 2005 * |
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|---|---|
| CN1696040A (en) | 2005-11-16 |
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