CN108750850B - Goods lift cable safety monitoring system - Google Patents
Goods lift cable safety monitoring system Download PDFInfo
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- CN108750850B CN108750850B CN201810679307.7A CN201810679307A CN108750850B CN 108750850 B CN108750850 B CN 108750850B CN 201810679307 A CN201810679307 A CN 201810679307A CN 108750850 B CN108750850 B CN 108750850B
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- cable
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- 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
Abstract
The invention belongs to the field of goods elevator safety, and particularly relates to a goods elevator cable safety monitoring system which comprises an ultrasonic generator, a signal receiver, a signal processing module, a communication module, a statistical module, a data processing module and a control part. The monitoring device of goods lift cable judges the safe service life of goods lift according to the size of reflection wave amplitude value and in combination with goods lift load impact degree in the big data to prevent goods lift cable breakage, guarantee goods lift reliable and stable operation.
Description
Technical Field
The invention belongs to the field of goods elevator safety, and particularly relates to a goods elevator cable monitoring system.
Background
The cable is a flexible component which is necessary for bearing equipment such as the freight elevator, and whether the cable is safe or not is very important for the operation of the freight elevator. In the prior art, for example, there are steel wire rope detection methods and systems for a cargo lift in the institute of building mechanization of the Chinese institute of building science, which detect whether each steel wire rope of the cargo lift is uniformly stressed in real time to prevent the steel wire rope of the cargo lift from breaking (refer to patent document CN 102101618B).
Disclosure of Invention
The invention provides a monitoring system of a cargo lift cable, which is used for comprehensively evaluating the safety of the cable by combining the stress condition of the cable and a plurality of items of big data so as to prevent the cable of the cargo lift from being broken and ensure the stable and reliable operation of the cargo lift.
The goods elevator cable monitoring system comprises a cable monitoring part, an impact evaluation part and a control part, wherein the control part comprehensively judges the safe service life of a cable according to the output results of the cable monitoring part and the impact evaluation part so as to prevent the cable from being broken and ensure the stable and reliable operation of the goods elevator;
the cable monitoring part detects the cable based on the ultrasonic flaw detection principle, and it includes:
the ultrasonic generator is arranged on one side of the inner wall of the well and used for sending an ultrasonic signal to the cable;
the signal receiver is arranged below the ultrasonic generator and used for receiving the ultrasonic signal reflected by the cable;
the signal processor is used for processing the reflected signal in a two-dimensional coordinate system taking the propagation time of the ultrasonic wave in the cable as an abscissa and the amplitude of the ultrasonic wave reflected wave as an ordinate to obtain a two-dimensional ultrasonic image;
the impact evaluation portion judges the degree of load impact applied to the freight elevator based on the yield and the use frequency of the freight elevator, and the impact evaluation portion includes:
a communication module for acquiring the daily production p of the goods of the workshop or factory where the elevator is locatedk；
A statistic module for recording communication failure times of infrared pair tubes arranged on the door of the elevator in one day, namely daily use frequency f of the elevatork；
Data processing module, according to daily output pkAnd daily frequency of use fkCalculating to obtain a daily load index akRecording daily load index a of each day for one yearkAnd is combined with the standard value a0Comparing, screening and counting a within one yeark＞a0The total number of times of the operation of the motor,
wherein the daily load index
Which represents the average weight per load of the lift per day;
when the amplitude of the reflected wave in the two-dimensional ultrasonic image is not equal to the standard value, the defect of abrasion or wire breakage on the surface of the cable is indicated, and at the moment, the control part judges that the safe service life of the cable is a first service life;
within one year ak＞a0When the total times of the cable is greater than the specified value, the probability that the goods elevator is in a full-load state for a long time is increased, namely the probability that the cable is impacted by the load is increased, so that the risk that the cable is instantaneously pulled and broken is increased, and therefore the control part judges that the safe service life of the cable is shortened from the first service life to the second service life;
within one year ak＞a0When the total number of times is not more than a predetermined value, the control unit judges that the safe service life of the cable is still the first service life.
The invention has the beneficial effects that: according to the resistance value size of resistance strain sensor and goods lift load impact degree in combining big data, can accurately judge the safe life of goods lift, the prevention goods lift cable breakage guarantees that goods lift moves reliably and steadily.
Drawings
Figure 1 shows a schematic view of a freight lift cable monitoring device;
FIG. 2 is a flow chart illustrating the statistics of the total number of load impacts;
fig. 3 shows a flow chart of the operation of the monitoring device.
Detailed Description
The structure of the present system and the functions performed are described in detail below with reference to the accompanying drawings.
The first embodiment is as follows:
as shown in figure 1 of the drawings, in which,
the goods elevator cable monitoring device comprises a cable monitoring part 1, an impact evaluation part 2 and a control part 3, wherein the control part 3 comprehensively judges the safe service life of a cable according to the output results of the cable monitoring part 1 and the impact evaluation part 2 so as to prevent the cable from being broken and ensure the goods elevator to stably and reliably run;
the cable monitoring portion 1 includes:
the ultrasonic generator 11 is arranged on one side of the inner wall of the well and is at a certain distance from the support top plate 12 and used for sending an ultrasonic signal to the cable in real time;
a signal receiver 13, which is arranged below the ultrasonic generator and is used for receiving the ultrasonic signal reflected back by the cable in real time;
the signal processing module 14 is arranged at the intersection of the cable and the support top plate 12 and is used for processing the reflected signal in an A scanning mode to obtain a two-dimensional coordinate graph;
as shown in figure 2 of the drawings, in which,
the impact evaluation unit 2 determines the degree of load impact applied to the elevator based on the output and the elevator use frequency, and includes:
a communication module 21, which is in communication connection with the production management system of the enterprise to obtain the daily output p of the goods of the workshop or factory where the goods elevator is locatedk；
A statistical module 22 for recording the communication failure times of the infrared pair tubes 23 arranged on the door of the freight elevator in one day, namely the daily use frequency f of the freight elevatork；
A data processing module 24 for processing the daily production pkAnd daily frequency of use fkCalculating to obtain a daily load index akRecording daily load index a of each day for one yearkAnd is combined with the standard value a0Comparing, screening and counting a within one yeark＞a0The total number of times m of the first step,
wherein the daily load index
Which represents the average weight per load of the lift per day;
as shown in figure 3 of the drawings,
when the amplitude value of the reflected wave in the two-dimensional coordinate graph is not equal to the standard amplitude value, the cable is broken or stranded, and at the moment, the control part 3 judges that the safe service life of the cable is a first service life;
within one year ak＞a0When the total number m of times is greater than the specified value, the probability that the goods elevator is in a full load state for a long time is increased, namely the probability that the cable is impacted by the load is increased, so that the risk of abrasion and breakage of the cable is increased, and therefore the control part 3 judges that the safe service life of the cable is shortened from the first service life to the second service life;
within one year ak＞a0When the total number m of times of the cable is not more than the predetermined value, the control section 3 judges that the safe lifetime of the cable is still the first lifetime.
Example two:
as shown in figure 1 of the drawings, in which,
the goods elevator cable monitoring device comprises a cable monitoring part 1, an impact evaluation part 2 and a control part 3, wherein the control part 3 comprehensively judges the safe service life of a cable according to the output results of the cable monitoring part 1 and the impact evaluation part 2 so as to prevent the cable from being broken and ensure the goods elevator to stably and reliably run;
the cable monitoring portion 1 includes:
the ultrasonic generator 11 is arranged on one side of the inner wall of the well and is at a certain distance from the support top plate 12 and used for sending an ultrasonic signal to the cable in real time;
a signal receiver 13, which is arranged below the ultrasonic generator and is used for receiving the ultrasonic signal reflected back by the cable in real time;
the signal processing module 14 is arranged at the intersection of the cable and the support top plate 12 and is used for processing the reflected signal in an A scanning mode to obtain a two-dimensional coordinate graph;
as shown in figure 2 of the drawings, in which,
the impact evaluation unit 2 determines the degree of load impact applied to the elevator based on the output and the elevator use frequency, and includes:
a communication module 21, which is in communication connection with the warehouse logistics information system of the enterprise to obtain the daily output p of the goods of the workshop or factory where the goods elevator is locatedk；
A statistical module 22 for recording the communication failure times of the infrared pair tubes 23 arranged on the door of the freight elevator in one day, namely the daily use frequency f of the freight elevatork；
A data processing module 24 for processing the daily production pkAnd daily frequency of use fkCalculating to obtain a daily load index akRecording daily load index a of each day for one yearkAnd is combined with the standard value a0Comparing, screening and counting a within one yeark＞a0The total number of times m of the first step,
wherein the daily load index
Which represents the average weight per load of the lift per day;
as shown in figure 3 of the drawings,
when the amplitude value of the reflected wave in the two-dimensional coordinate graph is not equal to the standard amplitude value, the cable is broken or stranded, and at the moment, the control part 3 judges that the safe service life of the cable is a first service life;
within one year ak＞a0When the total number m of times of the operation is greater than the predetermined value, it indicates that the possibility that the cargo lift is in a fully loaded state for a long time is increased, that is, the possibility that the cable is subjected to load impact is increased, so that the risk of abrasion and breakage of the cable is increased, and therefore, the control section 3 judges the safe service life of the cableThe first service life is shortened to a second service life;
within one year ak＞a0When the total number m of times of the cable is not more than the predetermined value, the control section 3 judges that the safe lifetime of the cable is still the first lifetime.
It will be appreciated by persons skilled in the art that numerous variations and/or modifications may be made to the invention as shown in the specific embodiments without departing from the spirit or scope of the invention as broadly described. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive. Likewise, the invention encompasses any combination of features, in particular of features in the patent claims, even if this feature or this combination of features is not explicitly specified in the patent claims or in the individual embodiments herein.
Claims (1)
1. A goods lift cable safety monitoring system comprises a cable monitoring part, an impact evaluation part and a control part, wherein the control part comprehensively judges the safe service life of a cable according to output results of the cable monitoring part and the impact evaluation part so as to prevent the cable from being broken and ensure the goods lift to stably and reliably run;
it is characterized in that the preparation method is characterized in that,
the cable monitoring part detects the cable based on the ultrasonic flaw detection principle, and it includes:
the ultrasonic generator is arranged on one side of the inner wall of the well and used for sending an ultrasonic signal to the cable;
the signal receiver is arranged below the ultrasonic generator and used for receiving the ultrasonic signal reflected by the cable;
the signal processor is used for processing the reflected signal in a two-dimensional coordinate system taking the propagation time of the ultrasonic wave in the cable as an abscissa and the amplitude of the ultrasonic wave reflected wave as an ordinate to obtain a two-dimensional ultrasonic image;
the impact evaluation portion judges the degree of load impact applied to the freight elevator based on the yield and the use frequency of the freight elevator, and the impact evaluation portion includes:
a communication module for acquiring a workshop or a worker where the freight elevator is locatedDaily production p of goods of a plantk；
A statistic module for recording communication failure times of infrared pair tubes arranged on the door of the elevator in one day, namely daily use frequency f of the elevatork；
Data processing module, according to daily output pkAnd daily frequency of use fkCalculating to obtain a daily load index akRecording daily load index a of each day for one yearkAnd is combined with the standard value a0Comparing, screening and counting a within one yeark＞a0The total number of times of the operation of the motor,
wherein the daily load index
Which represents the average weight per load of the lift per day;
when the amplitude of the reflected wave in the two-dimensional ultrasonic image is not equal to the standard value, the defect of abrasion or wire breakage on the surface of the cable is indicated, and at the moment, the control part judges that the safe service life of the cable is a first service life;
within one year ak＞a0When the total times of the cable is greater than the specified value, the probability that the goods elevator is in a full-load state for a long time is increased, namely the probability that the cable is impacted by the load is increased, so that the risk that the cable is instantaneously pulled and broken is increased, and therefore the control part judges that the safe service life of the cable is shortened from the first service life to the second service life;
within one year ak＞a0When the total number of times is not more than a predetermined value, the control unit judges that the safe service life of the cable is still the first service life.
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| CN201810679307.7A CN108750850B (en) | 2018-06-27 | 2018-06-27 | Goods lift cable safety monitoring system |
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| CN201810679307.7A CN108750850B (en) | 2018-06-27 | 2018-06-27 | Goods lift cable safety monitoring system |
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| CN108750850B true CN108750850B (en) | 2020-10-02 |
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| WO2003035531A1 (en) * | 2001-10-15 | 2003-05-01 | Henning Gmbh | Method and device for detecting wear of transport installations comprising bearer cables |
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| CN101893672A (en) * | 2010-07-03 | 2010-11-24 | 太原理工大学 | Mine high-voltage cable state monitoring and fault diagnosis prewarning device |
| CN102636561A (en) * | 2012-05-10 | 2012-08-15 | 中国矿业大学 | Real-time fault diagnosis and early warning device and method for wire rope of coal mine hoist |
| CN102785978A (en) * | 2012-07-26 | 2012-11-21 | 江西稀有金属钨业控股集团有限公司 | Method for real-time monitoring and control protection of hoisting rope of hoisting equipment |
| CN207395939U (en) * | 2017-11-15 | 2018-05-22 | 西安特种设备检验检测院 | A kind of elevator wire rope tension monitoring device |
| CN108726303A (en) * | 2018-06-27 | 2018-11-02 | 杨荣泰 | A kind of Cargo Lift cable monitoring device based on big data |
-
2018
- 2018-06-27 CN CN201810679307.7A patent/CN108750850B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2003035531A1 (en) * | 2001-10-15 | 2003-05-01 | Henning Gmbh | Method and device for detecting wear of transport installations comprising bearer cables |
| CN101411626A (en) * | 2007-09-03 | 2009-04-22 | Ge医疗系统环球技术有限公司 | Ultrasonic diagnostic apparatus |
| CN101893672A (en) * | 2010-07-03 | 2010-11-24 | 太原理工大学 | Mine high-voltage cable state monitoring and fault diagnosis prewarning device |
| CN102636561A (en) * | 2012-05-10 | 2012-08-15 | 中国矿业大学 | Real-time fault diagnosis and early warning device and method for wire rope of coal mine hoist |
| CN102785978A (en) * | 2012-07-26 | 2012-11-21 | 江西稀有金属钨业控股集团有限公司 | Method for real-time monitoring and control protection of hoisting rope of hoisting equipment |
| CN207395939U (en) * | 2017-11-15 | 2018-05-22 | 西安特种设备检验检测院 | A kind of elevator wire rope tension monitoring device |
| CN108726303A (en) * | 2018-06-27 | 2018-11-02 | 杨荣泰 | A kind of Cargo Lift cable monitoring device based on big data |
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| CN108750850A (en) | 2018-11-06 |
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Effective date of registration: 20200909 Address after: 350200 B-2, 24th floor, Shiyang International City Office Building, Wuhang Street, Changle District, Fuzhou City, Fujian Province Applicant after: Fuzhou Siqi Technology Co.,Ltd. Address before: 230000 4 town of No. 1 Swan Lake, Qianshan Road, Hefei administrative district, Anhui Applicant before: Yang Rongtai |
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