CN108726302A - A kind of Cargo Lift cable monitoring device based on stress and environmental data - Google Patents
A kind of Cargo Lift cable monitoring device based on stress and environmental data Download PDFInfo
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- CN108726302A CN108726302A CN201810678637.4A CN201810678637A CN108726302A CN 108726302 A CN108726302 A CN 108726302A CN 201810678637 A CN201810678637 A CN 201810678637A CN 108726302 A CN108726302 A CN 108726302A
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- cable
- cargo lift
- load
- day
- control unit
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Classifications
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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 Cargo Lift security fields, more particularly to a kind of Cargo Lift cable monitoring device based on stress and environmental data, it includes resistance strain sensor, communication module, statistical module, first Data Data processing module, dust concentration sensor, second data processing module and control unit, when the resistance value of any two resistance strain sensor differs, control unit does the safety of cable to be judged for the first time, and load-carrying impact degree in Cargo Lift operational process is combined to do second of judgement to the safety of cable, third time is done in conjunction with hoistway inside dirt degree to the safety of cable to judge.The monitoring device of Cargo Lift cable judges the safe handling time limit of Cargo Lift according to the resistance value size of resistance strain sensor and in conjunction with Cargo Lift load-carrying impact degree in big data and hoistway dirt degree, to prevent Cargo Lift cable breaks, ensure that Cargo Lift is reliablely and stablely run.
Description
Technical field
The invention belongs to Cargo Lift security fields, more particularly to a kind of Cargo Lift cable monitoring device.
Background technology
Cable is flexible member necessary to the carrying of the equipment such as Cargo Lift, cable whether safety to the operation of Cargo Lift to closing weight
It wants.The Cargo Lift wire rope standard side of such as Building Mechanization Research Branch, China Academy of Building Sciences exists in the prior art
Whether method and system uniformly prevent the technical solution of Cargo Lift wire cable rupture according to real-time detection Cargo Lift every steel wire rope stress
(referenced patent document CN102101618B).
Invention content
The present invention provides a kind of monitoring device of Cargo Lift cable, the stressing conditions in conjunction with cable and multinomial big number
According to the synthetically safety of evaluation cable ensures that Cargo Lift is reliablely and stablely run in order to prevent Cargo Lift cable breaks.
Cargo Lift cable monitoring device includes that stress test section, performance evaluation portion and control unit, control unit are detected according to stress
The safe handling time limit of the output result comprehensive descision cable in portion and performance evaluation portion ensures that Cargo Lift is steady to prevent cable breaks
It is fixed reliably to run；
The stress test section includes at least two resistance strain sensors being attached at respectively on different cables, is used for
The real-time stress situation for detecting cable, the ratio of the length L and cross-sectional area S of the resistance strain gage in resistance strain sensor with
The variation of cable stress size and change, the resistance strain sensor is according to the calculation formula of resistance RPass through detection
The change in resistance of resistance strain gage changes to obtain the stress of cable, and ρ is the resistivity of material of resistance strain gage；
The performance evaluation portion includes judging rushing for load-carrying impact degree suffered by Cargo Lift based on yield and Cargo Lift frequency of use
Evaluation unit is hit, and judges the hoistway environmental evaluation unit of dirty degree inside hoistway based on car dust concentration；
Wherein,
Impact Assessment unit includes：
Communication module, the daily output p of the cargo in the workshop or factory that are used to obtain where the Cargo Liftk；
Statistical module is used to record the communication failure number for the infrared tube being arranged in one day on the door of Cargo Lift compartment,
That is the day frequency of use f of Cargo Liftk；
First data processing module, according to daily output pkAnd day frequency of use fkA day load-carrying index a is calculatedk, record
Daily day load-carrying index a in 1 yeark, and with the first standard value a0It is compared, screens and counts a in 1 yeark> a0It is total
Number,
Wherein, day load-carrying indexIt indicates average each load-carrying weight of Cargo Lift in one day；
Hoistway environmental evaluation unit includes：
Dust concentration sensor is arranged in car top, for monitoring day concentration w daily in hoistway；
Second data processing module, daily day concentration w in record 1 year, and with the second standard value w0It is compared, sieves
It selects and counts w > w in 1 year0Total degree；
When the resistance value of any two resistance strain sensor differs, show that cable due to discontinuity, causes
Different degrees of deformation occurs for the resistance strain gage on different cables, at this point, control unit judges that the safe-use period of cable is limited to
First validity period；
As a in 1 yeark> a0Total degree when being more than first threshold, show that Cargo Lift is chronically at fully loaded load condition can
Energy property increases namely cable is increased by the possibility that load-carrying is impacted, to increase the risk that cable instantaneously pulls fracture, because
This, control unit judges that the safe handling time limit of cable shorten to the second validity period by the first validity period；
Further, as w > w in 1 year0Total degree be more than second threshold when, show to be stained on the lubricating grease in cable
The possibility that the possibility of dust increases namely cable is corroded increases, and therefore, control unit judges the safe handling time limit of cable
Third service life is shorten to by the second service life.
The beneficial effects of the invention are as follows：According to the resistance value size of resistance strain type sensor and combine Cargo Lift in big data
Load-carrying impact degree can accurately judge the safe handling time limit of Cargo Lift, prevent Cargo Lift cable breaks, ensure that Cargo Lift stabilization can
It is run by ground.
Description of the drawings
Fig. 1 shows the schematic diagram of Cargo Lift cable monitoring device；
Fig. 2 shows the flow charts of statistics load-carrying impact degree total degree；
Fig. 3 shows the operational flow diagram of monitoring device.
Specific implementation mode
With reference to the accompanying drawings, the function that the structure of this system is described in detail and is realized.
As shown in Figure 1,
Cargo Lift cable monitoring device includes stress test section 1, performance evaluation portion 2 and control unit 3, and control unit 3 is according to stress
The safe handling time limit of test section 1 and the output result comprehensive descision cable in Impact Assessment portion 2 is ensured with preventing cable breaks
Cargo Lift is reliablely and stablely run；
The stress test section 1 includes at least two resistance strain sensors 11 being attached at respectively on different cables,
Real-time stress situation for detecting cable, the length L's and cross-sectional area S of the resistance strain gage in resistance strain sensor 11
Ratio changes with the variation of cable stress size, and the resistance strain sensor is according to the calculation formula of resistance RIt is logical
The change in resistance of detection resistance foil gauge is crossed to obtain the stress variation of cable, ρ is the resistivity of material of resistance strain gage；
As shown in Fig. 2,
The performance evaluation portion 2 includes judging rushing for load-carrying impact degree suffered by Cargo Lift based on yield and Cargo Lift frequency of use
It hits evaluation component 21 and judges the hoistway environmental evaluation component 22 of dirty degree inside hoistway based on car dust mass concentration；
Wherein,
Impact Assessment component 21 includes：
Communication module 211, the daily output p of the cargo in the workshop or factory that are used to obtain where the Cargo Liftk；
Statistical module 212 is used to record the communication failure for the infrared tube 213 being arranged in one day on the door of Cargo Lift compartment
The day frequency of use f of number namely Cargo Liftk；
First data processing module 214, according to daily output pkAnd day frequency of use fkA day load-carrying index a is calculatedk,
Record day load-carrying index a daily in 1 yeark, and with standard value a0It is compared, screens and counts a in 1 yeark> a0Time
Number,
Wherein, day load-carrying indexIt indicates average each load-carrying weight of Cargo Lift in one day；
Hoistway environmental evaluation component 22 includes：
Dust mass concentration sensor 221 is arranged in car top, for monitoring car day dust mass concentration w；
Second data processing module 222, daily day dust mass concentration w in record 1 year, and with standard value w0It carries out
Compare, screen and counts w > w in 1 year0Number；
As shown in figure 3,
When the resistance value of any two resistance strain sensor differs, show that cable due to discontinuity, causes
Different degrees of deformation occurs for the resistance strain gage on different cables, at this point, control unit 3 judges that the safe-use period of cable is limited to
First validity period；
As a in 1 yeark> a0Number be more than the first value when, show that Cargo Lift is chronically at the possibility of fully loaded load condition
Increase namely cable is increased by the possibility that load-carrying is impacted, to increase the risk that cable instantaneously pulls fracture, therefore,
Control unit 3 judges that the safe handling time limit of cable shorten to the second validity period by the first validity period；
As a in 1 yeark> a0Number when being not more than the first value, control unit 3 judges safe handling time limit of cable still for the
One validity period；
As w > w in 1 year0Number be more than second value when, show the possibility that dust is stained on the lubricating grease in cable
The possibility that increase namely cable are corroded increases, and therefore, the safe handling time limit that control unit sentences 3 disconnected cables is used by second
Time limit shorten to third service life；
As a in 1 yeark> a0Number when being not more than second value, control unit 3 judges safe handling time limit of cable still for the
Two validity periods.
One skilled in the art would recognize that without departing substantially from the spirit and scope of the invention as describing in general manner,
Various variations and/or modification can be carried out to invention shown in each specific embodiment.Therefore, in terms of all
For, embodiment here is considered as illustrative and and non-limiting.Equally, the present invention includes any feature
Combination, the combination of any feature especially in Patent right requirement, even if the combination of this feature or feature is not in patent
It is explicitely stated in claim or each embodiment here.
Claims (2)
1. a kind of Cargo Lift cable monitoring device, which is characterized in that including test section, evaluation section and control unit, test section is for examining
Survey cable real-time stress situation, evaluation section be used for judge suffered by Cargo Lift load-carrying impact degree and Cargo Lift local environment it is dirty
Dirty degree, control unit is according to the real-time stress situation in conjunction with the safe handling time limit of the degree comprehensive descision cable.
2. a kind of Cargo Lift cable monitoring device, including stress test section, performance evaluation portion and control unit, control unit are examined according to stress
The safe handling time limit of the output result comprehensive descision cable in survey portion and performance evaluation portion ensures Cargo Lift to prevent cable breaks
Reliablely and stablely run；
It is characterized in that,
The stress test section includes at least two resistance strain sensors being attached at respectively on different cables, is used to detect
The real-time stress situation of cable, the ratio of the length L and cross-sectional area S of the resistance strain gage in resistance strain sensor are with cable
The variation of stress size and change, the resistance strain sensor is according to the calculation formula of resistance RBy detecting electricity
The change in resistance of foil gauge is hindered to obtain the stress variation of cable, and ρ is the resistivity of material of resistance strain gage；
The performance evaluation portion includes judging that the impact of load-carrying impact degree suffered by Cargo Lift is commented based on yield and Cargo Lift frequency of use
Valence unit, and judge based on car dust concentration the hoistway environmental evaluation unit of dirty degree inside hoistway；
Wherein,
Impact Assessment unit includes：
Communication module, the daily output p of the cargo in the workshop or factory that are used to obtain where the Cargo Liftk；
Statistical module is used to record the communication failure number for the infrared tube being arranged in one day on the door of Cargo Lift compartment, Ye Jihuo
The day frequency of use f of ladderk；
First data processing module, according to daily output pkAnd day frequency of use fkA day load-carrying index a is calculatedk, record 1 year
Interior daily day load-carrying index ak, and with the first standard value a0It is compared, screens and counts a in 1 yeark> a0It is total time
Number,
Wherein, day load-carrying indexIt indicates average each load-carrying weight of Cargo Lift in one day；
Hoistway environmental evaluation unit includes：
Dust concentration sensor is arranged in car top, for monitoring day concentration w daily in hoistway；
Second data processing module, daily day concentration w in record 1 year, and with the second standard value w0It is compared, screens and unites
Count out w > w in 1 year0Total degree；
When the resistance value of any two resistance strain sensor differs, show that cable due to discontinuity, leads to difference
Different degrees of deformation occurs for the resistance strain gage on cable, at this point, control unit judges that the safe-use period of cable is limited to first
Validity period；
As a in 1 yeark> a0Total degree be more than first threshold when, show that Cargo Lift is chronically at the possibility of fully loaded load condition
Increase namely cable is increased by the possibility that load-carrying is impacted, to increase the risk that cable instantaneously pulls fracture, therefore,
Control unit judges that the safe handling time limit of cable shorten to the second validity period by the first validity period；
Further, as w > w in 1 year0Total degree be more than second threshold when, show to be stained with dust on the lubricating grease in cable
Possibility increase namely the possibility that is corroded of cable increases, therefore, control unit judges safe handling time limit of cable by the
Two service life shorten to third service life.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810678637.4A CN108726302B (en) | 2018-06-27 | 2018-06-27 | A kind of Cargo Lift cable monitoring device based on stress and environmental data |
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|---|---|---|---|
| CN201810678637.4A CN108726302B (en) | 2018-06-27 | 2018-06-27 | A kind of Cargo Lift cable monitoring device based on stress and environmental data |
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| CN108726302B CN108726302B (en) | 2019-11-29 |
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| CN108726302B (en) | 2019-11-29 |
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Effective date of registration: 20191111 Address after: 215131 no.959, Jiayuan Road, Yuanhe street, Xiangcheng District, Suzhou City, Jiangsu Province Applicant after: Suzhou Yuanlian Technology Pioneer Park Management 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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