CN115028039A - Detection method of elevator traction device - Google Patents
Detection method of elevator traction device Download PDFInfo
- Publication number
- CN115028039A CN115028039A CN202210685393.9A CN202210685393A CN115028039A CN 115028039 A CN115028039 A CN 115028039A CN 202210685393 A CN202210685393 A CN 202210685393A CN 115028039 A CN115028039 A CN 115028039A
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- distance information
- braking
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- 238000001514 detection method Methods 0.000 title claims abstract description 9
- 238000012423 maintenance Methods 0.000 claims abstract description 47
- 238000000034 method Methods 0.000 claims abstract description 37
- 238000007689 inspection Methods 0.000 claims description 9
- 230000002159 abnormal effect Effects 0.000 claims description 7
- 238000012360 testing method Methods 0.000 description 3
- 230000001960 triggered effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003745 diagnosis Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
- B66B5/0006—Monitoring devices or performance analysers
- B66B5/0037—Performance analysers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B11/00—Main component parts of lifts in, or associated with, buildings or other structures
- B66B11/04—Driving gear ; Details thereof, e.g. seals
Abstract
The invention discloses a detection method of an elevator traction device, which controls the elevator to stop or utilizes the elevator sudden stop caused by external factors, and the elevator searches the well position again after the stopping is relieved, records the speed information, the position information, the distance information and the time information in the whole process of the elevator traction device, calculates and obtains the braking sliding distance information S2 and the traction sliding distance information S3 of the elevator traction device through an elevator controller, and makes a fault or an alarm when the braking sliding distance information S2 and the traction sliding distance information S3 exceed a set threshold value. The elevator controller transmits the calculated braking sliding distance information S2 and the traction sliding distance information S3 and the recorded position information, time information and fault or alarm information back to the server, and the server processes the braking sliding distance information S2 and the traction sliding distance information S3 to obtain the traction force and the braking force and the change trend thereof corresponding to the braking sliding distance information S2 and the traction sliding distance information S3 and guide maintenance personnel to perform targeted operation on related parts.
Description
Technical Field
The invention relates to the technical field of elevator detection, in particular to a detection method of an elevator traction device.
Background
The elevator traction device comprises a traction wheel and a steel wire rope, the traction machine is attached with a band-type brake, and whether the device is normal or not is directly related to the safety of passengers. There is no similar method on the market today.
Through retrieval, the Chinese patent invention patent application publication No. CN109896382A discloses an elevator fault diagnosis method, device, equipment and medium, which obtains the current triggered times of the braking operation of an elevator brake by determining the current braking operation of triggering the elevator brake; if the number of triggered times is larger than a preset trigger number threshold value N and the braking band-type brake energy generated by the current braking operation meets the abnormal braking condition determined according to the braking band-type brake energy generated by the 1 st to Nth braking operations, the elevator provided with the elevator band-type brake is determined to move abnormally, and the accuracy of determining the elevator fault can be improved.
An accident can be caused when the traction force or the braking force or the combination of the traction force and the braking force of the elevator is insufficient, the braking force can be checked by a method of 'brake force detection' (such as the above patent application), and the traction force cannot be tested by the method at present. The combination of drag and braking forces is less amenable to testing.
Disclosure of Invention
The invention aims to provide a detection method of an elevator traction device, which can carry out a combined test on the combination of traction force and braking force aiming at the defects existing in the elevator traction device test.
In order to achieve the above object, the present invention provides a method for detecting an elevator hoisting device, comprising: the elevator braking is controlled or the elevator sudden stop caused by external factors is utilized, the elevator searches the shaft position again after the braking is relieved, the speed information, the position information and the time information in the whole process of the elevator traction device are recorded, the braking sliding distance information S2 and the traction sliding distance information S3 of the elevator traction device are obtained through calculation of an elevator controller, and when the braking sliding distance information S2 and the traction sliding distance information S3 exceed the set maintenance threshold value, fault or alarm information is made.
In a preferred embodiment of the invention, the elevator controller transmits the recorded speed information, position information, distance information, time information and fault or alarm information back to the server, and the server processes the information to obtain the traction force and braking force corresponding to the braking slip distance information S2 and the traction slip distance information S3 and the variation trend thereof, and the variation trend of the speed information, distance information and time information in the process, and guides the maintenance personnel to perform targeted operation on related parts.
In a preferred embodiment of the present invention, the brake actuation response travel distance information S1 ═ P1-P2|, wherein: p1 is the position of t1 when the stop of elevator occurs at the time of the current t0 and the P2 brake is actuated; the brake actuation response time information Δ t is t2-t 1.
In a preferred embodiment of the present invention, the traction slip distance information S3 is a relative slip distance | P2-P3| -S2-S4 between the traction rope and the traction sheave, wherein: p3 is the absolute position of the correct position found after the braking is released, the braking slip distance information S2 is the rotation distance between t1 when the traction sheave brake is operated and t2 when the traction sheave stops rotating, and S4 is the distance from the time when the elevator car stops moving to the time when the elevator car is corrected to the absolute position P3.
In a preferred embodiment of the present invention, the making of the fault or alarm information when the brake slip distance information S2 and the traction slip distance information S3 exceed the set maintenance threshold is specifically: the elevator controller compares the braking slip distance information S2 with a preset braking slip distance maintenance threshold value, and when the braking slip distance information S2 exceeds the preset braking slip distance maintenance threshold value, a fault or alarm information of insufficient braking force is made; the elevator controller compares the traction sliding distance information S3 with a preset traction sliding distance maintenance threshold value, and when the traction sliding distance information S3 exceeds the set traction sliding distance maintenance threshold value, the elevator controller makes a fault or alarm information that the traction force is insufficient.
In a preferred embodiment of the present invention, the elevator controller returns the recorded speed information, position information, distance information, time information, and failure or alarm information to the server, and the server processes the information to obtain the traction force and braking force and their variation trends corresponding to the braking slip distance information S2 and the traction slip distance information S3, and the variation trends of the speed information, distance information, and time information in the process, and guides the maintenance worker to perform specific operations on the relevant components specifically: and when the server judges that the brake action response running distance information S1, the brake sliding distance information S2, the traction sliding distance information S3 and the change of the duration time of each stage exceed the set maintenance threshold value according to the speed information, the position information, the distance information, the time information and the fault or alarm information returned by the elevator controller, the server indicates that the components of the elevator braking device or the traction device are abnormal, and reminds a maintenance worker to check or maintain.
In a preferred embodiment of the present invention, the elevator controller returns the recorded speed information, position information, distance information, time information, and failure or alarm information to the server, and the server processes the information to obtain the traction force and braking force and their variation trends corresponding to the braking slip distance information S2 and the traction slip distance information S3, and the variation trends of the speed information, distance information, and time information in the process, and guides the maintenance worker to perform specific operations on the relevant components specifically: the server carries out modeling according to the brake action response running distance information S1, the brake sliding distance information S2, the traction sliding distance information S3 and the speed and duration of each stage returned by the elevator controller, obtains the change trend of the specific elevator braking force and traction force, and informs maintenance personnel to carry out inspection or maintenance in advance when the abnormal situation is predicted to possibly occur.
In a preferred embodiment of the invention, the server corrects the model and the determined maintenance threshold value in real time according to the information returned by a plurality of elevators and the returned elevator braking force and traction force data checked by maintenance personnel in the process of modeling according to the brake action response running distance information S1, the brake sliding distance information S2, the traction sliding distance information S3 and the speed and duration of each stage, which are returned by the elevator controller, so as to improve the accuracy of model judgment.
In a preferred embodiment of the invention the control of the elevator braking is operated either on site by a maintenance person or remotely by a server command.
Due to the adoption of the technical scheme, the invention can obtain the change conditions of the traction force and the brake force of the elevator through the sliding distance, thereby preventing the occurrence of accidents.
Drawings
Fig. 1 is a schematic diagram of the traction sheave speed, car speed, time of each phase and position of the present invention.
Detailed Description
The invention is further described below in conjunction with the appended drawings and detailed description.
Referring to fig. 1, the invention relates to a detection method of an elevator traction device, which comprises the steps of controlling the elevator to stop or utilizing the elevator to stop suddenly caused by external factors, recording the speed information, the position information and the time information of the elevator traction device in the whole process by searching the shaft position again after the elevator stops, obtaining the braking sliding distance information S2 and the traction sliding distance information S3 of the elevator traction device through the calculation of an elevator controller, and making fault or alarm information when the braking sliding distance information S2 and the traction sliding distance information S3 exceed the set maintenance threshold.
The elevator controller also transmits the calculated braking sliding distance information S2 and the traction sliding distance information S3 and the recorded position information, time information and fault or alarm information back to the server, and the server processes the braking sliding distance information and the traction sliding distance information to acquire the traction force and the braking force corresponding to the braking sliding distance information and the traction sliding distance information and the variation trend thereof and guide maintenance personnel to perform targeted operation on related components.
The control of elevator braking described above can be operated either on-site by a maintenance person or remotely by server command.
The brake actuation response travel distance information S1 ═ P1-P2|, in which: p1 is the position of t1 when the stop of elevator occurs at the time of the current t0 and the P2 brake is actuated; the brake actuation response time information Δ t is t2-t 1.
The traction slip distance information S3 is a relative slip distance | P2-P3| -S2-S4 between the traction rope and the traction sheave, in which: p3 is the absolute position of the correct position found after the braking is released, the braking slip distance information S2 is the rotation distance between t1 when the traction sheave brake is operated and t2 when the traction sheave stops rotating, and S4 is the distance from the time when the elevator car stops moving to the time when the elevator car is corrected to the absolute position P3.
When the brake slip distance information S2 and the traction slip distance information S3 exceed the set maintenance threshold, the fault or warning information is specifically: the elevator controller compares the brake slip distance information S2 with a preset brake slip distance maintenance threshold value, and when the brake slip distance information S2 exceeds the preset brake slip distance maintenance threshold value, fault or alarm information of insufficient brake force is made; the elevator controller compares the traction sliding distance information S3 with a preset traction sliding distance maintenance threshold value, and when the traction sliding distance information S3 exceeds the preset traction sliding distance maintenance threshold value, the elevator controller generates fault or alarm information of insufficient traction force.
The elevator controller transmits the recorded speed information, position information, distance information, time information and fault or alarm information back to the server, and the server processes the information to acquire the traction force and braking force corresponding to the braking slip distance information S2 and the traction slip distance information S3 and the variation trend thereof, and the variation trend of the speed information, distance information and time information in the process, and guides the maintenance personnel to perform specific operation on related components, specifically: and the server judges whether the brake action response running distance information S1, the brake sliding distance information S2, the traction sliding distance information S3 and the change of the duration time of each stage exceed the set maintenance threshold according to the speed information, the position information, the distance information, the time information and the fault or alarm information returned by the elevator controller, and indicates that the components of the elevator braking device or the traction device are abnormal, so as to remind maintenance personnel to check or maintain.
Further, the elevator controller returns the recorded speed information, position information, distance information, time information, and failure or alarm information to the server, and the server processes the information to obtain the traction force and braking force and the variation trend thereof corresponding to the braking slip distance information S2 and the traction slip distance information S3, and the variation trend of the speed information, distance information, and time information in the process, and guides the maintenance worker to perform specific operations on the relevant components specifically: the server carries out modeling according to the brake action response running distance information S1, the brake sliding distance information S2, the traction sliding distance information S3 and the speed and duration of each stage returned by the elevator controller, obtains the change trend of the specific elevator braking force and traction force, and informs maintenance personnel to carry out inspection or maintenance in advance when the abnormal situation is predicted to possibly occur.
And the server responds to the running distance information S1, the braking sliding distance information S2, the traction sliding distance information S3 and the speed and duration of each stage according to the brake action returned by the elevator controller, inspects the returned elevator braking force and traction force data according to the information returned by a plurality of elevators and maintenance personnel, corrects the model and the judged maintenance threshold value in real time and improves the accuracy of model judgment.
Claims (9)
1. A detection method of an elevator traction device is characterized by comprising the following steps: the elevator braking is controlled or the elevator sudden stop caused by external factors is utilized, the elevator searches the shaft position again after the braking is relieved, the speed information, the position information, the distance information and the time information in the whole process of the elevator traction device are recorded, the braking sliding distance information S2 and the traction sliding distance information S3 of the elevator traction device are obtained through calculation of an elevator controller, and when the braking sliding distance information S2 and the traction sliding distance information S3 exceed the set maintenance threshold value, a fault or an alarm is made.
2. The inspection method of an elevator traction apparatus according to claim 1, wherein: the elevator controller transmits the recorded speed information, position information, distance information, time information and fault or alarm information back to the server, and the server processes the information to acquire the traction force and braking force corresponding to the braking slip distance information S2 and the traction slip distance information S3 and the variation trend thereof, and the variation trend of the speed information, distance information and time information in the process, and guides a maintainer to perform targeted operation on related components.
3. The inspection method of an elevator traction apparatus according to claim 1 or 2, wherein: the brake actuation response travel distance information S1 ═ P1-P2|, in which: p1 is the position of t1 when the brake action of P2 occurs at the position of the next t0 when the stop of the elevator occurs; the brake actuation response time information Δ t is t2-t 1.
4. The inspection method of an elevator traction apparatus according to claim 1 or 2, wherein: the traction slip distance information S3 is a relative slip distance | P2-P3| -S2-S4 between the traction rope and the traction sheave, wherein: p3 is the absolute position of the correct position found after the braking is released, the braking slip distance information S2 is the rotation distance between t1 when the traction sheave brake is operated and t2 when the traction sheave stops rotating, and S4 is the distance from the time when the elevator car stops moving to the time when the elevator car is corrected to the absolute position P3.
5. The inspection method of an elevator traction apparatus according to claim 1 or 2, wherein: when the brake sliding distance information S2 and the traction sliding distance information S3 exceed the set maintenance threshold, the fault or alarm information is specifically: the elevator controller compares the braking slip distance information S2 with a preset braking slip distance maintenance threshold value, and when the braking slip distance information S2 exceeds the preset braking slip distance maintenance threshold value, a fault or alarm information of insufficient braking force is made; the elevator controller compares the traction sliding distance information S3 with a preset traction sliding distance maintenance threshold value, and when the traction sliding distance information S3 exceeds the set traction sliding distance maintenance threshold value, the elevator controller makes a fault or alarm information that the traction force is insufficient.
6. The inspection method of an elevator traction apparatus according to claim 2, wherein: the elevator controller returns the recorded speed information, position information, distance information, time information and fault or alarm information to the server, and the server processes the information to acquire the traction force and braking force corresponding to the braking slip distance information S2 and the traction slip distance information S3 and the variation trend thereof, and the variation trend of the speed information, distance information and time information in the process, and guides a maintenance worker to perform targeted operation on related components, specifically: and when the server judges that the brake action response running distance information S1, the brake sliding distance information S2, the traction sliding distance information S3 and the change of the duration time of each stage exceed the set maintenance threshold value according to the speed information, the position information, the distance information, the time information and the fault or alarm information returned by the elevator controller, the server indicates that the components of the elevator braking device or the traction device are abnormal, and reminds a maintenance worker to check or maintain.
7. The method for detecting the traction device of the elevator as claimed in claim 2, wherein: the elevator controller returns the recorded speed information, position information, distance information, time information and fault or alarm information to the server, and the server processes the information to acquire the traction force and braking force corresponding to the braking slip distance information S2 and the traction slip distance information S3 and the variation trend thereof, and the variation trend of the speed information, distance information and time information in the process, and guides a maintenance worker to perform targeted operation on related components, specifically: the server carries out modeling according to the brake action response running distance information S1, the brake sliding distance information S2, the traction sliding distance information S3 and the speed and duration of each stage returned by the elevator controller, learns the variation trend of the braking force and the traction force of the elevator, and informs maintenance personnel to check or maintain in advance when the abnormal situation is predicted to occur.
8. The inspection method of an elevator traction apparatus according to claim 7, wherein: and the server responds to the running distance information S1, the braking sliding distance information S2, the traction sliding distance information S3 and the speed and duration of each stage according to the brake action returned by the elevator controller, and corrects the model and the judged maintenance threshold value in real time according to the information returned by a plurality of elevators and the elevator braking force and traction force data returned by the maintenance personnel in the modeling process, so that the accuracy of model judgment is improved.
9. The inspection method of an elevator traction apparatus according to claim 1, wherein: the control elevator braking is operated by a maintenance person on site or remotely by a server command.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210685393.9A CN115028039A (en) | 2022-06-15 | 2022-06-15 | Detection method of elevator traction device |
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| CN202210685393.9A CN115028039A (en) | 2022-06-15 | 2022-06-15 | Detection method of elevator traction device |
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| WO2019167212A1 (en) * | 2018-03-01 | 2019-09-06 | 三菱電機株式会社 | Elevator brake performance evaluation apparatus |
| CN113184648A (en) * | 2021-02-04 | 2021-07-30 | 四川省特种设备检验研究院 | Method for detecting braking force and traction force of elevator |
-
2022
- 2022-06-15 CN CN202210685393.9A patent/CN115028039A/en active Pending
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| JPH08108983A (en) * | 1994-10-11 | 1996-04-30 | Mitsubishi Denki Bill Techno Service Kk | Brake testing device |
| JP2009078100A (en) * | 2007-09-27 | 2009-04-16 | Oizumi Corp | Game machine |
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| JP2010052875A (en) * | 2008-08-27 | 2010-03-11 | Hitachi Building Systems Co Ltd | Inspection method of braking force and holding force of brake of elevator |
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