CN102745565A - Detection method of operation of lift-car-type elevator - Google Patents
Detection method of operation of lift-car-type elevator Download PDFInfo
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- CN102745565A CN102745565A CN2012102241643A CN201210224164A CN102745565A CN 102745565 A CN102745565 A CN 102745565A CN 2012102241643 A CN2012102241643 A CN 2012102241643A CN 201210224164 A CN201210224164 A CN 201210224164A CN 102745565 A CN102745565 A CN 102745565A
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Abstract
The invention provides a detection method of operation of a lift-car-type elevator, and the method comprises the following steps of: step 1, setting a working condition of the operation of the elevator; step 2: measuring and recording a motor output torque or total energy consumption when the elevator operates at a set work condition; step 3, respectively comparing the measured motor output torque or total energy consumption with a standard output torque or the standard total energy consumption; and step 4, judging whether the elevator operates poorly or not according to the comparison result. The motor output torque and/or the total energy consumption can be compared when the elevator operates under the set work condition of the operation of the elevator, and the standard output torque and/or the standard total energy consumption can be compared; and whether the elevator operates poorly or not can be obtained through comparing and changing the data and an existing fault position is detected, so that before the elevator has the fault, a fault part is obtained, the safety of the operation of the elevator is improved and accidents can be avoided or reduced.
Description
Technical field
The present invention relates to a kind of method of inspection of elevator operation, relate in particular to a kind of method of inspection of car formula elevator operation.
Background technology
Elevator is the indispensable a kind of transportation means of the modern life, but also is a kind of special equipment that relates to personal safety, and et out of order possibly cause serious personal injury.Safety assurance is the most important condition of elevator design, production and operation.The elevator that uses for delivered, out of service and regularly key position is tested and guarantee its safe operation when generally having only et out of order.But there is following shortcoming like this.
(1) generally can only after fault takes place, know that just elevator has hidden danger, and early warning can not be provided.So both safety inadequately, elevator stops service and also brings inconvenience during et out of order.
(2) generally can only be that electric component can provide self-checking function, mechanical part just can't be realized.And the harm of mechanical part when damaging will be bigger and maintenance cost is also higher.
(3) periodical survey is generally only checked key point because cost and the restriction of time, and mechanical part is the guide rail of car formula elevator especially, leads boots etc. and has no the inspection measure basically.
The distortion of mechanical device, wear and tear, get loose, the generation of problem such as fatigue damage, foreign matter embedding, be likely in a period of time, to run down, cause the generation of accident at last.Periodical survey before fault takes place and maintenance differ and pinpoint the problems surely, and the technical merit of product does not have good solution to this at present.
Through certain mode the running state of elevator is monitored and record, judge the potential risk of some mechanical hazard, thereby avoid the generation of accident, the object of the invention that Here it is place.
Summary of the invention
The present invention provides a kind of method of inspection of car formula elevator operation, and its purpose is, through setting operating mode; Motor when elevator is moved carries out the measurement and the comparison of energy consumption and torque; The inspection mechanical hazard improves the safety that elevator moves, and avoids or the generation of minimizing accident.
The present invention provides a kind of method of inspection of car formula elevator operation, comprising: step 1: the operating mode of setting the elevator operation; Step 2: measure and write down elevator when presetting condition is moved, motor output torque or total energy consumption; Step 3: motor output torque that measures or total energy consumption are compared with standard output torque or total energy consumption respectively; Step 4: according to comparative result, it is bad to judge whether elevator moves.
The present invention provides a kind of method of inspection of car formula elevator operation, and operating condition comprises in the step 1: load-carrying, start-stop floor, running velocity and service direction.
The present invention provides the method for inspection of a kind of car formula elevator operation, and in the step 2, torque comprises: open a sluice gate torque, it is for after elevator starts, when opening a sluice gate to lock, and the torque that motor is exported; Acceleration torque, when it quickens for elevator, the torque of motor output; And the speed stabilizing torque, when it is the elevator stable speed operation, the torque of motor output.
The present invention provides the method for inspection of a kind of car formula elevator operation, elevator operation bad comprising, opens a sluice gate bad, steel rope and skids.
The present invention provides the method for inspection of a kind of car formula elevator operation, opens a sluice gate torque when opening a sluice gate torque less than standard, and acceleration torque is less than the standard acceleration torque, and during the torque of speed stabilizing torque overgauge speed stabilizing, judges that elevator opens a sluice gate bad.
The present invention provides the method for inspection of a kind of car formula elevator operation, and equal standard and open a sluice gate torque when opening a sluice gate torque, acceleration torque overgauge acceleration torque, and during the torque of speed stabilizing torque overgauge speed stabilizing, judge that elevator wire rope skids.
The present invention provides a kind of method of inspection of car formula elevator operation, before step 4, further comprises repeating step two and step 3.
The up-to-standard car formula of an Installation and Debugging elevator when the operating mode of its real-world operation is constant, if the torque of motor and/or total energy consumption change, can explain that then the situation of associated mechanical components has had variation.Under the elevator operation service condition of setting, compare motor output torque and/or the total energy consumption of elevator when operation, and compare with standard output torque and/or total energy consumption; It is bad that comparison that can be through data and variation know whether elevator moves; And have location of fault, thereby before elevator breaks down, know trouble unit; Improve the safety of elevator operation, avoid or the generation of minimizing accident.
Description of drawings
Fig. 1 is the schematic flow sheet of the method for inspection of car formula elevator operation of the present invention;
Fig. 2 is among the embodiment 1, the schematic flow sheet of the daily detection of elevator operation;
Fig. 3 is in the present embodiment 1, the standard output torque curve of elevator speed and motor, and open a sluice gate to detect when bad the contrast scheme drawing of the motor output torque curve that obtains;
Fig. 4 is in the present embodiment 2, and the standard output torque curve of elevator speed and motor reaches the contrast scheme drawing that detects the motor output torque curve that obtains when steel rope skids.
The specific embodiment
Below in conjunction with accompanying drawing, the method for inspection that car formula elevator of the present invention is moved is elaborated.
As shown in Figure 1, be the diagram of circuit of the method for inspection of car formula elevator of the present invention operation.Among the present invention, the method for inspection of car formula elevator operation comprises: step 1: the operating mode of setting the elevator operation; Step 2: measure and write down elevator when presetting condition is moved, motor output torque or total energy consumption; Step 3: the motor output torque that measures, total energy consumption are compared with standard output torque, total energy consumption respectively; Step 4: according to comparative result, it is bad to judge whether elevator moves.
In order to judge that whether car formula elevator exists hidden danger mechanically, at first will set the operating condition of elevator.Generally; The energy consumption of car formula elevator produces very complicated; Not only relevant with own, load-carrying, efficient, friction drag, air resistance etc., relevant with run curves such as speed, plus-minus speed, relevant with the starting and ending position of operation; Also with guide rail and to lead much relevant mechanical parts such as boots, band-type brake, steel rope, traction sheave relevant, and relevant with some external factor such as power line voltage.The starting of car formula elevator, acceleration, speed stabilizing, the torque of slowing down, stopping are consistent under load and start-stop stop unmodified situation, and specific curve are arranged.
Therefore, operating condition comprises: load-carrying, initial floor, running velocity and service direction.
The car formula elevator especially run curve of energy consumption and the torque of towed elevator is relevant with multiple factor, and computing is very complicated, and owing to lack a lot of concrete data it can not be realized.Judge whether occur unusually and tend to through actual operating data and certain criteria operating mode are compared, just can simplify the work capacity of computing greatly and the requirement of equipment.
The selection principle of certain criteria operating mode is following:
(1) influence of the concrete load of eliminating.
(2) influence of the concrete stop of eliminating
(3) carry out the measurement and the record of equal conditions in the real-world operation easily
(4) condition of measurement sampling point is clear and definite
(5) measure sampling number according to the specific source of trouble of reflection.
During the elevator operation, be divided into four-stage usually, open a sluice gate the operation phase; Quicken the operation phase; Stable speed operation's stage; Run slowly the stage.
In the present invention, the torque that when three phases moves elevator respectively, records respectively and the standard torque of setting compare, and comprising: open a sluice gate the torque of opening a sluice gate of operation phase, it is for after elevator starts, when opening a sluice gate to lock, and the torque of motor output; Quicken the acceleration torque of operation phase, when it is the elevator acceleration phase, the instantaneous maximum torque of motor output; And the speed stabilizing torque the during stable speed operation, when it is the elevator stable speed operation, the average torque of motor output.
Guide rail and lead the variation that some most common failures such as boots, band-type brake, steel rope will cause torque curve, and the mode of influence is different.Torque curve through to record carries out signature analysis, and can judge is that base part is bad.
Situations such as the somewhere guide rail distortion of car formula elevator, the mechanically deform of layer door can cause producing unusual impact on the operation torque curve of car formula elevator.This unusual surge waveform and hoisting depth then can be judged concrete position of fault as there being correlativity.
Embodiment 1
Day-to-day operation to elevator detects, and the basic specification of elevator is following: the total number of plies of elevator: 8 layers; Specified ladder speed: 1.75m/s; Rated load: 1 ton; Host form: permagnetic synchronous motor directly drives main frame, the 1:2 suspension.Motor nominal parameter: voltage AC 380V; Power 11.7KW; Electric current 25A; Torque 700Nm; Rotating speed 167rpm; Supporting frequency converter: 400v, 15KW.
In the present embodiment 1, the operating mode of setting elevator is following: load-carrying is unloaded, and the start-stop floor that elevator detects is the 1-8 layer, and middle nothing stops, and command speed is 1.75m/s, and service direction is up.
Elevator is in above-mentioned operating mode, and from 1 layer to 8 layers, hoisting depth 21m roughly need move 15.5 seconds.The running velocity curve of elevator does, pick-up time 3.5s accelerates to 1.75m/s from 0, after the speed time of run is about 8.5s, reduce speed now, deceleration time 3.5s.
Wherein, idiographic flow is as shown in Figure 2:
S1: judge whether whether elevator moves the coincidence detection condition, promptly meet the setting operating mode.Be whether elevator is light condition in the present embodiment 1, whether elevator does not have calling etc. at other floors.Then do not detect if not, detect if then prepare.
S2: elevator dispatching to initial layers, is about to elevator dispatching to 1 layer.
S3: the operation elevator, let elevator under light condition, there is not the operation of the ground of stop by 8 layers of 1 courses.
S4: the motor torque of measuring and write down the elevator operation phase.
S5: with elevator open a sluice gate torque, acceleration torque and speed stabilizing torque respectively with the standard torque ratio, judge whether elevator exists the operation condition of poor.
S6:, judge whether to opening a sluice gate bad or steel rope skids according to the torque comparative result.
As shown in Figure 3, in present embodiment 1, the standard output torque curve of elevator speed and motor, and open a sluice gate to detect when bad the contrast scheme drawing of the motor output torque curve that obtains.
Along with the time changes, elevator speed accelerates to 1.75m/s by 0m/s, and the stable speed operation decelerates to 0m/s after a period of time.Velocity curve, cooresponding standard torque curve and open a sluice gate the torque curve when bad, as shown in Figure 3.Average torque when the torque that three some A on the standard torque curve, B, C are corresponding respectively when opening a sluice gate, the maximum torque when quickening and speed stabilizing.
In embodiment 1 during presetting condition, the standard torque does, it is 277Nm that the A point is opened a sluice gate torque, and maximum torque was 635Nm when the B point quickened, and average torque is 341.5Nm during C point speed stabilizing.
When elevator detects operation, obtain detection curve.With three some A', B', C' on the cooresponding detection curve on the calibrated curve, its torque is respectively, and it is 197.5Nm that A' opens a sluice gate torque, and maximum torque was 515Nm when the B' point quickened, and average torque is 407.5Nm during C point speed stabilizing.
The torque of three some A' when elevator is detected operation on the detection curve, B', C' is compared with the standard torque curve, obtains the following < A of A' as a result; B' < B; C'>C, when promptly detecting, open a sluice gate torque, the maximum torque when quickening less than cooresponding standard torque, the average torque during speed stabilizing is greater than cooresponding standard torque.Usually be judged as elevator and open a sluice gate bad this moment.
Embodiment 2
The basic specification of elevator and operating mode are set identical with embodiment 1, repeat no more at this.Only just be elaborated with embodiment 1 different place among the embodiment 2.
Fig. 4 is the standard output torque curve of elevator speed and motor, reaches the contrast scheme drawing that detects the motor output torque curve that obtains when steel rope skids.
Along with the time changes, elevator speed accelerates to 1.75m/s by 0m/s, and the stable speed operation decelerates to 0m/s after a period of time.Velocity curve, cooresponding standard torque curve and open a sluice gate the torque curve when bad, as shown in Figure 3.Average torque when the torque that three some A on the standard torque curve, B, C are corresponding respectively when opening a sluice gate, the maximum torque when quickening and speed stabilizing.
In embodiment 2 during presetting condition, the standard torque does, it is 277Nm that the A point is opened a sluice gate torque, and maximum torque was 635Nm when the B point quickened, and average torque is 341.5Nm during C point speed stabilizing.
When elevator detects operation, obtain detection curve.With three some A on the cooresponding detection curve on the calibrated curve ", B ", C ", its torque is respectively, A " opening a sluice gate torque is 280.5Nm, B ' some maximum torque when quickening is 720Nm, average torque is 387Nm during C point speed stabilizing.
Three some A when elevator is detected operation on the detection curve ", B ", C " torque compare with the standard torque curve, obtain following A as a result ">A; B ">B; C '>C, when promptly detecting, the average torque when opening a sluice gate torque, speed stabilizing is slightly larger than cooresponding standard torque, and the maximum torque during acceleration is much larger than cooresponding standard torque.Be judged as elevator wire rope and skid this moment.
Above-mentioned two embodiment are when elevator is moved, and comparison is measured in the torque of motor.Also can measure comparison to the total energy consumption of motor output.
Below simple the description how to judge through the measurement of motor total energy consumption whether elevator exists the bad or fault of operation.
Towed elevator is owing to there is the relation of balance counterweight, and the process of its operation drags and brake two parts.The process electric current that drags flows into motor, and motor is to the load energy output; In the process of braking, motor outgoing current, the energy of motor absorbing load.Following common machinery all causes increasing the energy consumption of the process of dragging unusually, reduces the energy consumption of power generation process.
● lead boots distortion/insufficient lubrication, promptly lead boots wearing and tearing, the installation site is shifted
● band-type brake is opened not exclusively, and promptly brake plate is in half-clutch state
● steel rope skids
● a traction sheave insufficient lubrication and a last repetition
● the guide rail distortion
● towing machine drive disk assembly insufficient lubrication
● stator, the rotor part partial failure of towing machine motor part
● the output cable SI semi-insulation damages
Therefore; In towed elevator, can electric current and voltage sensor be installed at the power line of motor, measure the I/O power of motor; In an operational process of elevator, calculating I/O power respectively to the integration of time, is exactly the energy consumption that drags and brake that elevator once moves.
In the day-to-day operation when presetting condition is moved; The once energy consumption of operation to elevator is measured and record; Then data measured and normal data are compared, if it is big to drag the ability loss-rate standard of process, the ability loss-rate standard of braking is little; Can judge that then mechanical condition is bad, serious situation can be judged as fault.
Owing to when measuring torque or total energy consumption, the operating mode of elevator is set, has the same service conditions when making the operation of elevator with standard torque or total energy consumption.And, adopt the nothing calling to return the base station scheme for the detection of elevator., the calling of elevator execution nothing measures when returning base station operation.It must be no-load run that the base station is returned in the nothing calling, and its initial stop has only N-1 kind possibility (N is the stop sum).This scheme has guaranteed the conformability of test load, neither takies service time, and enough numbers of samples are also arranged, and realizes simpler.
Standard torque or total energy consumption can obtain through special operation the debug phase before elevator dispatches from the factory.The result who measures is stored in the parts that are used for routine analysis as the standard comparative data.
Standard output torque or total energy consumption can record and be recorded under presetting condition in the main frame of elevator when elevator dispatch from the factory detection, also can be after elevator is installed and used a period of time; Service personnel is accomplished maintenance or the maintenance to elevator; And through after the assay was approved, again according to the service conditions of setting, the operation elevator; Record torque or total energy consumption; And by the related personnel with Data Update in the main frame of elevator, replace original factory data, be used as standard of comparison as standard output torque or total energy consumption.
For avoiding false judgment, can carry out repeated detection to elevator, to improve the accuracy that detects data.
Adopt the inventive method; The torque or the total energy consumption data of gathering elevator compare judgement; All can judge elevator and whether have fault,, adopt the inventive method although concrete fault cause fails all to list one by one in the above-described embodiments; As long as elevator is in bad mode of operation, promptly can in time judge to have fault.
Embodiment as top is said, and the use of elevator is quite frequent, and the application of ending to serve in order to check fault is not too practical.Therefore in running process of elevator, detect the torque or the total energy consumption of motor, through with the comparison of normal data, it is bad to judge in the elevator whether mechanical part exists, it is bad to reach which kind of parts.
Protection content of the present invention is not limited to above-mentioned embodiment down.Under spirit that does not deviate from inventive concept and scope, variation and advantage that those skilled in the art can expect all are included among the present invention, and are protection domain with the appending claims.
Claims (7)
1. the method for inspection of a car formula elevator operation is characterized in that, comprising:
Step 1: the operating mode of setting the elevator operation;
Step 2: measure and write down elevator when presetting condition is moved, motor output torque or total energy consumption;
Step 3: said motor output torque that will measure or total energy consumption compare with standard output torque or total energy consumption respectively;
Step 4: according to comparative result, it is bad to judge whether elevator moves.
2. the method for inspection of car formula elevator operation as claimed in claim 1 is characterized in that operating condition comprises described in the step 1: load-carrying, start-stop floor, running velocity and service direction.
3. the method for inspection of car formula elevator operation as claimed in claim 1 is characterized in that in the step 2, said torque comprises:
Open a sluice gate torque, it is for after elevator starts, when opening a sluice gate to lock, and the torque of said motor output;
Acceleration torque, when it quickens for elevator, the torque of said motor output;
And the speed stabilizing torque, when it is the elevator stable speed operation, the torque of said motor output.
4. the method for inspection of the car formula elevator described in claim 1-3 operation is characterized in that, said elevator operation bad comprising, opens a sluice gate bad, steel rope and skids.
5. the method for inspection of car formula elevator operation as claimed in claim 4; It is characterized in that; Open a sluice gate torque and open a sluice gate torque when said less than said standard; Said acceleration torque is less than said standard acceleration torque, and said speed stabilizing torque is during greater than said standard speed stabilizing torque, judges that elevator opens a sluice gate bad.
6. the method for inspection of car formula elevator operation as claimed in claim 5; It is characterized in that; Open a sluice gate torque and equal said standard and open a sluice gate torque when said; Said acceleration torque is greater than said standard acceleration torque, and said speed stabilizing torque judges that elevator wire rope skids during greater than said standard speed stabilizing torque.
7. the method for inspection of car formula elevator operation as claimed in claim 1 is characterized in that, before step 4, further comprises repeating step two and step 3.
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| CN2012102241643A CN102745565A (en) | 2012-06-29 | 2012-06-29 | Detection method of operation of lift-car-type elevator |
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| CN2012102241643A CN102745565A (en) | 2012-06-29 | 2012-06-29 | Detection method of operation of lift-car-type elevator |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115468A (en) * | 2015-08-14 | 2015-12-02 | 苏州汇川技术有限公司 | Elevator guide rail installation quality detection system and method |
| CN110775751A (en) * | 2018-07-26 | 2020-02-11 | 株式会社日立大厦系统 | Elevator, elevator maintenance inspection system, and elevator abnormality diagnosis device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101152939A (en) * | 2006-09-28 | 2008-04-02 | 东芝电梯株式会社 | Function variable remote monitoring system and remote monitoring method for elevator |
| JP2008156078A (en) * | 2006-12-25 | 2008-07-10 | Toshiba Elevator Co Ltd | Control device of elevator |
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2012
- 2012-06-29 CN CN2012102241643A patent/CN102745565A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101152939A (en) * | 2006-09-28 | 2008-04-02 | 东芝电梯株式会社 | Function variable remote monitoring system and remote monitoring method for elevator |
| JP2008156078A (en) * | 2006-12-25 | 2008-07-10 | Toshiba Elevator Co Ltd | Control device of elevator |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105115468A (en) * | 2015-08-14 | 2015-12-02 | 苏州汇川技术有限公司 | Elevator guide rail installation quality detection system and method |
| CN105115468B (en) * | 2015-08-14 | 2018-05-22 | 苏州汇川技术有限公司 | Cage guide installation quality detecting system and method |
| CN110775751A (en) * | 2018-07-26 | 2020-02-11 | 株式会社日立大厦系统 | Elevator, elevator maintenance inspection system, and elevator abnormality diagnosis device |
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Application publication date: 20121024 |