CN102923544B - Device and method for detecting broken strands of hoisting steel wire rope - Google Patents
Device and method for detecting broken strands of hoisting steel wire rope Download PDFInfo
- Publication number
- CN102923544B CN102923544B CN201210462193.3A CN201210462193A CN102923544B CN 102923544 B CN102923544 B CN 102923544B CN 201210462193 A CN201210462193 A CN 201210462193A CN 102923544 B CN102923544 B CN 102923544B
- Authority
- CN
- China
- Prior art keywords
- tension
- steel
- wire rope
- steel wire
- cable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Maintenance And Inspection Apparatuses For Elevators (AREA)
- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The invention discloses a device for detecting broken strands of a hoisting steel wire rope. The detection device comprises a tension detection element and a control unit; the tension detection element is used for detecting the tension of the steel wire rope; the tension detection element feeds the detected steel wire rope tension signals back to the control unit for processing; and for the same steel wire rope, when the subtraction value of the tension detected in the first time and the tension detected in the second time is larger than or equal to 50%, the strands of the steel wire rope is judged to be broken. The invention further discloses a method for detecting the broken strands of the hoisting steel wire rope. The device and the method provided by the invention have the advantages that a conventional pressure sensor or a steel wire rope tension gauge and a lift control cabinet microcomputer circuit board are adopted, so that the manufacture process is mature and the cost is low; and a failure can be judged accurately, the reaction speed is high, and passenger safety can be better protected.
Description
[technical field]
The present invention relates to elevators field, specifically can meet arbitrarily traction class elevator to the demand of broken strand of steel cable emergency operation, ensure that the traction steel-cable of safety breaks stock detecting device and method.
[background technology]
If elevator continues to run after disconnected stock occurs traction class elevator wire rope, likely cause following consequence:
(1) this wire rope breaking;
(2) be intertwined with adjacent wires rope after the stock that breaks scatters knotting, and cause steel rope to skid on rope sheave, it is oppressive that the non-flat bed of car stops ladder, and due to wirerope-winding, can not rescue people by jiggering;
(3) disconnected stock continues to run the wearing and tearing also accelerating grooving on rope sheave, makes rope sheave shortening in service life.
At present, as shown in Figure 3, there is a kind of device using optoelectronic induction instrument to detect disconnected stock, its principle is: between elevator traction machine 5 and track adjusting wheel 12, install optoelectronic induction instrument 13, continues to launch infrared signal to steel rope 10, and collects the infrared signal reflected, export electric signal and feed back to elevator control cabinet microcomputer circuit card 4, to exporting control command after aberrant electrical signals analysis to towing machine 5, selecting nearest floor leveling opening, and stopping elevator running; Aberrant electrical signals is set as that steel rope disconnected stock rear surface state occurs and changes (wire rope core part is exposed), produces with the reflection strength difference of original Steel Wire Surface to infrared signal.But; there are two open defects in said apparatus: 1) if disconnected stock position does not occur between optoelectronic induction instrument detection zone; there is disconnected stock can not immediately shut down; traction steel-cable can continue to run after there is disconnected stock; until disconnected stock position enters between optoelectronic induction instrument detection zone, after output abnormality electric signal, towing machine is just shut down.Run LAP there is steel rope in disconnected stock to the process of shutting down, may to be intertwined knotting with adjacent wires rope after disconnected stock scatters, to cause the non-flat bed of car to stop terraced oppressive; 2) if steel rope lubricating oil in operational process is separated out more serious; after the impurity such as the dust of adhesion hoistway, machine room, steel rope local surfaces can form overplate, creates a difference with the reflection strength of steel rope normal surface to infrared signal; output abnormality electric signal, causes wrong report to shut down.
Owing to there is no a kind of actv. device, so most of traction class elevator is not all monitored broken strand of steel cable.
When elevator normally runs, the fluctuation of every root steel wire rope tension general when static tension force ± 10%, and in long-time running between each steel rope Tension Distribution change be also the process of a gradual change.And the traction steel-cable stock that breaks usually occurs in a flash, occur because this steel rope is elongated lax after disconnected stock, tension force can sharply diminish, and the amplitude diminished may reach more than 50% of moment before disconnected stock, and the load process of diminishing is less than 0.1 second.By the generation of monitoring steel wire rope tension change, the object that disconnected stock is monitored can be reached.
[summary of the invention]
The object of the invention is to the deficiency existed for the above prior art, provide a kind of accuracy of judgement, speed of response are fast, cost is low traction steel-cable to break stock detecting device.
Another object of the present invention be to provide a kind of above-mentioned traction steel-cable break strand detecting device method of inspection.
To achieve these goals, the present invention is achieved in that traction steel-cable breaks stock detecting device, comprise tension detect element and control unit, described tension detect element is for detecting steel wire rope tension, the steel wire rope tension signal feedback detected processes by described tension detect element to control unit, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, be judged as that this steel rope is for disconnected stock.
Described steel rope is fixed on fag end cover of wedge assembly, and described fag end cover of wedge assembly is connected with fag end spring, and described fag end spring is fixed on adapter plate.
Described tension detect element is pressure sensor, and described pressure sensor is arranged between fag end spring and adapter plate, for detecting steel wire rope tension.
Described tension detect element is tension gauge, and described tension gauge is arranged on steel rope, for detecting steel wire rope tension.
Described control unit is be installed on to have microcomputer circuit card tension data being carried out to processing module in elevator control cabinet.
Described microcomputer circuit card is connected with towing machine, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, when being judged as this steel rope for disconnected stock, microcomputer circuit card exports control command to towing machine, select nearest floor leveling opening, and stop elevator running.
Traction steel-cable breaks the method for inspection of strand detecting device, the steel wire rope tension signal feedback detected processes by described tension detect element to control unit, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, be judged as that this steel rope is for disconnected stock.
Described microcomputer circuit card exports control command to towing machine, selects nearest floor leveling opening, and stops elevator running.
Also comprise Tension Distribution homogeneity detecting step, when in the same each steel rope force value once gathered, minimum value is less than 50% than maxim, be judged as each steel wire rope tension skewness, described microcomputer circuit card output abnormality signal, to elevator control cabinet, reminds repair and maintenance personnel adjustment each steel wire rope tension distribution.
Wherein, microcomputer circuit card gathered the force value of 1 pressure sensor or tension gauge every 1 second.
Compared with prior art, the present invention has the following advantages: the invention has the beneficial effects as follows, utilizes existing pressure sensor or steel wire rope tension meter, elevator control cabinet microcomputer circuit card, and its manufacture craft is ripe, and cost is low.And the present invention is accurate to breakdown judge, speed of response fast, better can protect passenger safety.
[accompanying drawing explanation]
Fig. 1 is that traction steel-cable of the present invention breaks the mounting structure schematic diagram of burst detecting device embodiment 1;
Fig. 2 is that traction steel-cable of the present invention breaks the mounting structure schematic diagram of burst detecting device embodiment 2;
Fig. 3 is the broken strand of steel cable detecting device scheme of installation with optoelectronic induction instrument in prior art.
[detailed description of the invention]
Below in conjunction with the drawings and specific embodiments, explanation is described in detail to the present invention.
Embodiment 1
As shown in Figure 1, traction steel-cable breaks stock detecting device, comprise be fixed on machine room elevator control cabinet 3, be installed on microcomputer circuit card 4 in elevator control cabinet 3, the towing machine 5 be fixed on frame machine beam, the fag end spring 6 be fixed on adapter plate 8, pressure sensor 7, fag end cover of wedge assembly 9, the steel rope 10 be fixed on fag end cover of wedge assembly 9.Described pressure sensor 7 is arranged between fag end spring 6 and adapter plate 8, for detecting steel wire rope tension, pressure sensor 7 is connected with described microcomputer circuit card 4 by control path 1, the steel wire rope tension signal feedback detected is processed to microcomputer circuit card 4, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, be judged as that this steel rope is for disconnected stock.
Concrete operation is as follows: be fixed on pressure sensor 7 on adapter plate 8 by the communication with microcomputer circuit card 4, continue the tension feedback of every root steel rope 10 to the microcomputer circuit card 4 of elevator control cabinet 3, microcomputer circuit card 4 gathered the force value of 1 pressure sensor 7 every 1 second, and then microcomputer circuit card 4 carries out computing.Operational formula: reduce numerical value be greater than 50% with surveying warp tension ratio before measurement tension force after steel cable 10, is judged as that steel rope 10 breaks stock, exports control command 2 to towing machine 5, selects nearest floor leveling opening, and stop elevator running.
Embodiment 2
As shown in Figure 2, traction steel-cable breaks stock detecting device, comprise be fixed on machine room elevator control cabinet 3, be installed on microcomputer circuit card 4 in elevator control cabinet 3, the towing machine 5 be fixed on frame machine beam, the fag end spring 6 be fixed on adapter plate 8, tension gauge 11, fag end cover of wedge assembly 9, the steel rope 10 be fixed on fag end cover of wedge assembly 9.Described tension gauge 11 is fixed on steel rope 10, for detecting steel wire rope tension.Described tension gauge 11 is connected with described microcomputer circuit card 4 by control path 1, the steel wire rope tension signal feedback detected is processed to microcomputer circuit card 4, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, be judged as that this steel rope is for disconnected stock.
Concrete operation is as follows: be fixed on steel wire rope tension meter 11 on steel rope 10 by the communication with microcomputer circuit card 4, continue the tension feedback of every root steel rope 10 to the microcomputer circuit card 4 of elevator control cabinet 3, microcomputer circuit card 4 gathered the force value of 1 pressure sensor 7 every 1 second, and then microcomputer circuit card 4 carries out computing.Operational formula: reduce more than 50% with surveying warp tension ratio before measurement tension force after steel cable 10, is judged as that steel rope 10 breaks stock, exports control command 2 to towing machine 5, selects nearest floor leveling opening, and stop elevator running.
Traction steel-cable breaks the method for inspection of strand detecting device, the steel wire rope tension signal feedback detected processes by described tension detect element to control unit, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, be judged as that this steel rope is for disconnected stock; Described microcomputer circuit card exports control command to towing machine, selects nearest floor leveling opening, and stops elevator running.
Elevator runs need ensure that each steel wire rope tension is evenly distributed as far as possible.The traction steel-cable quantity of general elevator is 5-7 root, and the Tension Distribution of first each steel rope can affect the comfort of elevator operation, and the tension force that next skewness causes too conference reduces rope service-life.Bb the present invention can comprise Tension Distribution homogeneity detecting step by the traction steel-cable stock detecting device that breaks, when in same each steel rope 10 force value once gathered, minimum value is less than 50% than maxim, be judged as that each steel rope 10 Tension Distribution is uneven, described microcomputer circuit card output abnormality signal, to elevator control cabinet 3, reminds repair and maintenance personnel adjustment each steel rope 10 Tension Distribution.
Wherein microcomputer circuit card 4 gathered the force value of 1 pressure sensor 7 or tension gauge 11 every 1 second.
Although the present invention describes with reference to specific embodiment, this description not meaning that is construed as limiting the present invention.With reference to description of the invention, other changes of the disclosed embodiments, all can expect for those skilled in the art, this change should belong in appended claims limited range.
Claims (8)
1. traction steel-cable breaks stock detecting device, it is characterized in that, comprise tension detect element and control unit, described tension detect element is for detecting steel wire rope tension, the steel wire rope tension signal feedback detected processes by described tension detect element to control unit, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, be judged as that this steel rope is for disconnected stock, described steel rope is fixed on fag end cover of wedge assembly, described fag end cover of wedge assembly is connected with fag end spring, described fag end spring is fixed on adapter plate, described tension detect element is pressure sensor, described pressure sensor is arranged between fag end spring and adapter plate, for detecting steel wire rope tension.
2. traction steel-cable breaks stock detecting device, it is characterized in that, comprise tension detect element and control unit, described tension detect element is for detecting steel wire rope tension, the steel wire rope tension signal feedback detected processes by described tension detect element to control unit, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, be judged as that this steel rope is for disconnected stock, described steel rope is fixed on fag end cover of wedge assembly, described fag end cover of wedge assembly is connected with fag end spring, described fag end spring is fixed on adapter plate, described tension detect element is tension gauge, described tension gauge is arranged on steel rope, for detecting steel wire rope tension.
3. to break stock detecting device in the traction steel-cable described in 1 according to claim, it is characterized in that, described control unit is the microcomputer circuit card be installed in elevator control cabinet.
4. to break stock detecting device according to traction steel-cable according to claim 3, it is characterized in that, described microcomputer circuit card is connected with towing machine, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, when being judged as this steel rope for disconnected stock, microcomputer circuit card exports control command to towing machine, selects nearest floor leveling opening, and stops elevator running.
5. break according to the arbitrary described traction steel-cable of claim 1-4 the method for inspection of strand detecting device, it is characterized in that, the steel wire rope tension signal feedback detected processes by described tension detect element to control unit, when the numerical value surveying the minimizing of warp tension ratio before measurement tension force after same steel cable is more than or equal to 50%, be judged as that this steel rope is for disconnected stock.
6. break according to traction steel-cable according to claim 5 the method for inspection of strand detecting device, it is characterized in that, described microcomputer circuit card exports control command to towing machine, selects nearest floor leveling opening, and stops elevator running.
7. break according to traction steel-cable according to claim 6 the method for inspection of strand detecting device, it is characterized in that, also comprise Tension Distribution homogeneity detecting step: when in the same each steel rope force value once gathered, minimum value is less than 50% than maxim, be judged as each steel wire rope tension skewness, described microcomputer circuit card output abnormality signal, to elevator control cabinet, reminds repair and maintenance personnel adjustment each steel wire rope tension distribution.
8. break according to traction steel-cable according to claim 7 the method for inspection of strand detecting device, it is characterized in that, microcomputer circuit card gathered the force value of 1 pressure sensor or tension gauge every 1 second.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462193.3A CN102923544B (en) | 2012-11-15 | 2012-11-15 | Device and method for detecting broken strands of hoisting steel wire rope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210462193.3A CN102923544B (en) | 2012-11-15 | 2012-11-15 | Device and method for detecting broken strands of hoisting steel wire rope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102923544A CN102923544A (en) | 2013-02-13 |
| CN102923544B true CN102923544B (en) | 2015-03-04 |
Family
ID=47638509
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210462193.3A Active CN102923544B (en) | 2012-11-15 | 2012-11-15 | Device and method for detecting broken strands of hoisting steel wire rope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102923544B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103879852A (en) * | 2013-06-27 | 2014-06-25 | 洛阳威尔若普检测技术有限公司 | Elevator wire rope breakage monitoring device based on deformation principle |
| CN104512779A (en) * | 2013-09-30 | 2015-04-15 | 上海三菱电梯有限公司 | Detecting device and method for suspension element of elevator |
| CN106256739B (en) * | 2016-08-30 | 2019-02-12 | 江苏兴华胶带股份有限公司 | A kind of knotting automatic stop arrangement compensating chain automatic coiling equipment |
| CN106629330A (en) * | 2017-01-21 | 2017-05-10 | 上海峰景移动科技有限公司 | On-line detection system for tension of steel wire rope for elevator |
| CN108196473B (en) * | 2018-01-17 | 2020-05-22 | 金华市赛利得工具有限公司 | Improved device for automatically heating and disconnecting dog strap and control method thereof |
| CN109406275B (en) * | 2018-11-04 | 2024-02-27 | 江苏兴达钢帘线股份有限公司 | Device and method for detecting surface quality of steel wire for twisting |
| CN110482364B (en) * | 2019-08-29 | 2024-08-20 | 快意电梯股份有限公司 | Rope end tensioning detection mechanism and elevator safety protection device |
| CN117105039B (en) * | 2023-10-23 | 2024-01-23 | 菱王电梯有限公司 | Method, system, elevator, equipment and medium for detecting elevator wire rope |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2142902C1 (en) * | 1994-05-06 | 1999-12-20 | Артур Ефимович Гольберт | Wire rope instrumental fault finding method |
| JP3188833B2 (en) * | 1995-11-17 | 2001-07-16 | 三菱電機株式会社 | Elevator rope tension measuring device |
| JPH10338434A (en) * | 1997-06-04 | 1998-12-22 | Hitachi Ltd | Hydraulic elevator |
| CN201268536Y (en) * | 2008-08-08 | 2009-07-08 | 宁波宏大电梯有限公司 | Belt type towline head combination |
| JP5481170B2 (en) * | 2009-11-18 | 2014-04-23 | 株式会社日立製作所 | Double deck elevator device |
-
2012
- 2012-11-15 CN CN201210462193.3A patent/CN102923544B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN102923544A (en) | 2013-02-13 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102923544B (en) | Device and method for detecting broken strands of hoisting steel wire rope | |
| US8807286B2 (en) | Method and an arrangement in rope condition monitoring of an elevator | |
| JP5602613B2 (en) | Elevator equipment | |
| US7823706B2 (en) | Condition monitoring system | |
| EP1357073A1 (en) | Elevator main rope elongation sensor | |
| EP2660180B1 (en) | Overspeed detecting device for elevator apparatus with a safety interlock | |
| CN107298356B (en) | Building settlement detection | |
| CN104590962A (en) | Elevator with pulley groove diagnosing device | |
| JP5631489B2 (en) | Elevator equipment | |
| US5886308A (en) | Rope speed monitoring assembly and method | |
| CN101633463B (en) | Elevator terminal position detection speed limiting device and positioning detection variable speed control device | |
| US20180057310A1 (en) | Safety device, elevator system and control method for controlling the elevator system | |
| CN108873755A (en) | Anti-sticking system and anti-card test method for lifting device | |
| EP3693313B1 (en) | Hoisting rope monitoring device | |
| JP6067813B1 (en) | Elevator derailment detector | |
| JP4952366B2 (en) | Clearance management measuring device and method for elevator balancing weight and governor rope tensioned vehicle | |
| CN208569333U (en) | Anti-sticking system for lifting device | |
| CN110271930A (en) | Elevator car slipping rescues automatic detection device and detection method | |
| CN101190764B (en) | Elevator overspeed testing apparatus | |
| CN110482352A (en) | A kind of elevator traction force monitoring methods and monitoring device based on data-driven | |
| CN107187983A (en) | A kind of elevator compensation chain chain breakage protection device | |
| CN214298777U (en) | Elevator balance coefficient no-load measuring device | |
| EP2452908B1 (en) | Elevator device | |
| CN109956381B (en) | Safety elevator system | |
| CN102745565A (en) | Detection method of operation of lift-car-type elevator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |