CN108203032A - A kind of elevator dragging wire rope tonometry adjusting apparatus and method - Google Patents
A kind of elevator dragging wire rope tonometry adjusting apparatus and method Download PDFInfo
- Publication number
- CN108203032A CN108203032A CN201611173687.4A CN201611173687A CN108203032A CN 108203032 A CN108203032 A CN 108203032A CN 201611173687 A CN201611173687 A CN 201611173687A CN 108203032 A CN108203032 A CN 108203032A
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- China
- Prior art keywords
- adjustment
- pressure sensor
- tonometry
- measurement
- wire rope
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- 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.)
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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
- B66B5/0018—Devices monitoring the operating condition of the elevator system
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
- B66B7/00—Other common features of elevators
- B66B7/06—Arrangements of ropes or cables
- B66B7/10—Arrangements of ropes or cables for equalising rope or cable tension
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- Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
Abstract
The present invention relates to a kind of elevator dragging wire rope tonometry adjusting apparatus and methods.The elevator dragging wire rope tonometry adjusting apparatus of the present invention, including multigroup measurement adjustment unit and acquisition process controller;Multigroup measurement adjustment unit includes adjustment component, pressure sensor and support base, the adjustment component and pressure sensor are arranged on the support base, the both ends of each traction steel-cable of elevator are connect respectively with a support base for measuring adjustment unit, multigroup pressure sensor for measuring adjustment unit and adjustment component are respectively used to measure and adjust the tension of each traction steel-cable, and multigroup pressure sensor for measuring adjustment unit is connect with the acquisition process controller signals.The elevator dragging wire rope tonometry method of adjustment of the present invention has the advantages that convenient and efficient, Adjustment precision is high, regulated efficiency is high.
Description
Technical field
The present invention relates to elevator technology field, more particularly to a kind of elevator dragging wire rope tonometry adjusting apparatus and
Method.
Background technology
Traction elevator, using the frictional force between traction sheave and traction steel-cable, realizes electricity by the rotation of traction sheave
The lifting of terraced suspension, this requires each traction steel-cable of same elevator answers even tension.Tension is uneven to be made
Abrasion into traction steel-cable, rope sheave is uneven, not only influences the ride comfort of elevator, but will influence traction steel-cable, rope sheave
Service life in addition influence elevator safety operation.
It meets the requirements in order to ensure the even tension degree of traction steel-cable, in the installation, examination, servicing operations of elevator all
It is required to carry out quick to the even tension degree of traction steel-cable and accurately detect and adjust.At present usual way have with
Under it is several:(1) it is measured one by one with spring tension meter in car top, is then adjusted in fag end position, operates repeatedly respectively.It is this
Method needs manually separately carry out one by one, and measure with adjusting asynchronous, inefficient, precision deficiency.(2) pacify in fag end position
Adjustment section lever realizes automatic adjustment, and this method adjusting range is limited, and without measurement data, is unfavorable for even tension degree
Judged.(3) it is adjusted in fag end position using hydraulic pump+hydraulic cylinder mode, mixes up side fag end, then adjust opposite side fag end.
This method device is more, complicated for operation, not data show, is unfavorable for judging even tension degree.(4) unilateral fag end position
It puts and is adjusted using sensor measurement, after this method is measured, adjusted in side fag end position, dismounting is needed to refill another
It measures and adjusts on the fag end of side.The transfer of traction steel-cable tension can be caused during dismounting, installation, adjustment, made
Be not allowed into measurement result, adjustment effect it is bad, and dismounting repeatedly also reduces efficiency.
Above existing techniques or methods:It can not achieve the synchronization, same of synchronous, each traction steel-cable of measurement and adjustment
The synchronization of one rope different location;Or it not data show, adjust that stroke is limited, repeated disassembled and assembled efficiency complicated for operation is low;More
Lack the active analysis ability to data.More than it is insufficient, be presented as a variety of different inconveniences in practical applications.Therefore have
Necessity provides a kind of accurate, convenient, fast, traction steel-cable tonometry adjusting apparatus and method.
Invention content
Based on this, the object of the present invention is to provide a kind of elevator dragging wire rope tonometry adjusting apparatus and method,
It has the advantages that convenient and efficient, Adjustment precision is high, regulated efficiency is high.
A kind of elevator dragging wire rope tonometry adjusting apparatus, including multigroup measurement adjustment unit and acquisition process
Controller;Multigroup measurement adjustment unit includes adjustment component, pressure sensor and support base, the adjustment component and pressure
Force snesor is arranged on the support base, the both ends of each traction steel-cable of elevator respectively with an adjustment unit that measures
Support base connects, and multigroup pressure sensor for measuring adjustment unit and adjustment component are respectively used to measure and adjust each traction
The tension of steel wire rope, multigroup pressure sensor for measuring adjustment unit are connect with the acquisition process controller signals.
The elevator dragging wire rope tonometry adjusting apparatus of the present invention is by setting multigroup measure to adjust component, Ke Yishi
Progress synchronous with adjustment is now measured, substantially increases Adjustment precision;Can tension adjustment be carried out to more traction steel-cables simultaneously,
Improve regulated efficiency;Tension adjustment is carried out to the both ends of a traction steel-cable simultaneously, is dismantled again after eliminating one section of adjustment
The trouble that the other end is measured and adjusted is attached to, tension shifts during also solving disassembly and installation, causes measurement result not
Accurate, the problem of adjustment effect is bad.
Further, the adjustment component includes adjustment screw, upper adjusting nut and lower adjusting nut, the adjustment screw
It is arranged between the upper adjusting nut and lower adjusting nut and is fixed on the pressure sensor wherein, the lower adjustment spiral shell
Mother is arranged on the support base.
Further, the adjustment component further includes upper locking nut and lower locking nut, the upper locking nut setting
In the upper end of the adjustment screw, the lower locking nut is arranged in the adjustment screw and positioned at the lower adjusting nut
It is inboard.
Further, the adjustment component further includes two adjusting washers, and described two adjusting washers are respectively arranged at institute
It states between adjusting nut and pressure sensor and between the lower locking nut and pressure sensor.
Further, multigroup pressure sensor for measuring adjustment unit passes through data line and the acquisition process control
Device signal connection processed.
Further, display is further included, the display is connect with the acquisition process controller signals.
The present invention also provides a kind of elevator dragging wire rope tonometry methods of adjustment, include the following steps:
S1. one group of measurement adjustment unit is connected respectively at the both ends of each traction steel-cable of elevator;
S2. adjust the adjustment component of every group of measurement adjustment unit, the pressure sensor of every group of measurement adjustment unit measure with
Connection traction steel-cable tension;
S3. the tension signal of measurement is transmitted to acquisition process controller by the pressure sensor of every group of measurement adjustment unit;
S4. the tension signal of measurement is calculated and is exported by acquisition process controller;
S5. the tension of each traction steel-cable is further adjusted with full according to the calculating output result of acquisition process controller
Sufficient tension adjustment requirement.
Relative to the prior art, elevator dragging wire rope tonometry adjusting apparatus of the invention is by setting multigroup measurement
Component is adjusted, can realize that measurement is synchronous with adjustment and carry out, substantially increase Adjustment precision;It can be simultaneously to more traction steel wires
Rope carries out tension adjustment, improves regulated efficiency;Tension adjustment is carried out to the both ends of a traction steel-cable simultaneously, eliminates tune
Dismounting refills the trouble that the other end is measured and adjusted after whole one section, and tension shifts during also solving disassembly and installation,
Measurement result is caused to be not allowed, the problem of adjustment effect is bad.The elevator dragging wire rope tonometry method of adjustment tool of the present invention
Have the advantages that convenient and efficient, Adjustment precision is high, regulated efficiency is high, there is very strong practicability.
In order to better understand and implement, the invention will now be described in detail with reference to the accompanying drawings.
Description of the drawings
Fig. 1 is the structure diagram of the elevator dragging wire rope tonometry adjusting apparatus of the present invention.
Fig. 2 is the structure diagram of every group of measurement adjustment unit.
Specific embodiment
Referring to Fig. 1, the elevator dragging wire rope tonometry adjusting apparatus of the present invention, including multigroup measurement adjustment unit
10 and acquisition process controller 20 and display.Multigroup measurement adjustment unit 10 carries out tension adjustment to each traction steel-cable
And measurement, and the tension signal of measurement is transmitted on acquisition process controller 20, acquisition process controller 20 opens measurement
Force signal is calculated and is shown by display, so that operating personnel refer to.
Referring to Fig. 2, multigroup measurement adjustment unit 10 of the present embodiment includes adjustment component 11, pressure sensor
12 and support base 13, the adjustment component 11 and pressure sensor 12 are arranged on the support base 13, each traction steel of elevator
The both ends of cord are connect respectively with a support base 13 for measuring adjustment unit 10, multigroup pressure for measuring adjustment unit 10
Force snesor 12 and adjustment component 11 are respectively used to measure and adjust the tension of each traction steel-cable, and multigroup measure adjusts list
The pressure sensor 12 of member 10 is connect with 20 signal of acquisition process controller.
The adjustment component 11 of the present embodiment include adjustment screw 111, upper adjusting nut 112, lower adjusting nut 113,
Upper locking nut 114, lower locking nut 115 and two adjusting washers 116.The adjustment screw 111 is arranged in the upper adjustment
It is fixed on wherein between nut 112 and lower adjusting nut 113 and by the pressure sensor 12, the lower adjusting nut 113 is set
It puts on the support base.The upper locking nut 114 is arranged on the upper end of the adjustment screw 111, the lower locking nut
115 are arranged in the adjustment screw 111 and positioned at the inboard of the lower adjusting nut 113.Described two adjusting washers 116 are divided
It is not set between the upper adjusting nut 112 and pressure sensor 12 and the lower locking nut 115 and pressure sensor 12
Between.
Multigroup pressure sensor 12 for measuring adjustment unit 10 of the present embodiment passes through data line and the acquisition
20 signal of processing controller connects.
The acquisition process controller 20 of the present embodiment is preferably provided with respectively opening each steel wire rope of collected traction
The module that power is calculated can be summed to measuring tension data, average, seeks deviation, seek the functions such as deviation percent,
And pass through and compare deviation percent and set even tension degree and judge that benchmark judges the even tension degree of each steel wire rope
Whether meet the requirements, to provide more comprehensive tension adjustment data.The acquisition process controller 20 of the present embodiment has tension
The uniformity judges the set-up function of benchmark, can be judged according to the even tension degree that national standard, enterprise's mark or testing requirement setting need to meet
Value, the foundation that the acquisition process controller 20 as the present embodiment analyzes and determines tensiometry data.
The display is connect with 20 signal of acquisition process controller, the traction steel that display can measure needs
Cord carries out instruction input, for example, goal-setting can be adjusted to tension variation value, tension variation percentage etc., logical
After toning whole group part 11 carries out tension adjustment, display can opening by 20 collected tension of acquisition process controller and after calculating
Power deviation, tension variation percentage etc. are shown, can also show the adjustment to every traction steel-cable next step automatically
It is recommended that so that operating personnel are with reference to the tension adjustment content of next step.
The elevator dragging wire rope tonometry method of adjustment of the present invention:
Since elevator dragging wire rope tonometry adjusting apparatus includes multigroup measurement adjustment unit 10, every group of measurement adjustment
The adjustment of unit 10 can carry out according to the following steps.
S1. one group of measurement adjustment unit 10 is connected respectively at the both ends of each traction steel-cable of elevator.
S2. adjust the adjustment component of every group of measurement adjustment unit, the pressure sensor of every group of measurement adjustment unit measure with
Connection traction steel-cable tension.
Specially:Lower locking nut 115 is unclamped with spanner, it is made to be detached slightly with lower adjusting nut 113, after being convenient for
Continuous hand adjustment section.Upper adjusting nut 112 is gradually tightened with spanner, when adjusting nut 113 is initially located in loosening instantly, stops twisting
Tightly.
S3. the tension signal of measurement is transmitted to acquisition process control by the pressure sensor 12 of every group of measurement adjustment unit 10
Device 20.
Pressure sensor 12 measures tension at this time and tension signal is transmitted on acquisition process controller 20, acquisition
Tension signal is carried out processing calculating by processing controller 20, and tension variation value, tension variation percentage can be included by calculating content
Deng.
S4. the tension signal of measurement is calculated and is exported by acquisition process controller.
Display show at this time the initial steel wire rope tension of each traction steel-cable both ends fag end position, tension variation value,
Power deviation percent and adjustment are suggested.
S5. the tension of each traction steel-cable is further adjusted with full according to the calculating output result of acquisition process controller
Sufficient tension adjustment requirement.
The data information shown according to display, if you need to be further adjusted to the tension of traction steel-cable, then with pulling
Hand adjustment section upper locking nut 114 it is elastic, when adjustment, should successively be carried out from big to small by tension variation degree, until display is each
The tension variation percentage of traction steel-cable is in allowed band.
The tension adjustment of each traction steel-cable can be carried out at the same time adjustment at traction steel-cable both ends, also can be first in traction steel wire
One end of rope is uniform by tension adjustment, then adjusts the other end, is operated without repeated disassembled and assembled.In addition, measuring, during adjustment,
Also elevator can be run to other positions, observes the situation of change of each traction steel-cable both ends tension.
After completing the both ends tonometry of each traction steel-cable, adjustment, lower adjusting nut 113 is screwed onto downwards and support base
13 fittings, can not tighten, in order to avoid changing tension value and the uniformity after adjustment, turn off and remove pressure sensor 12,
In the case that 113 position of adjusting nut is constant under holding, lower locking nut 115 is tightened, restores elevator operation.
Relative to the prior art, elevator dragging wire rope tonometry adjusting apparatus of the invention is by setting multigroup measurement
Component is adjusted, can realize that measurement is synchronous with adjustment and carry out, substantially increase Adjustment precision;It can be simultaneously to more traction steel wires
Rope carries out tension adjustment, improves regulated efficiency;Tension adjustment is carried out to the both ends of a traction steel-cable simultaneously, eliminates tune
Dismounting refills the trouble that the other end is measured and adjusted behind whole one end, and tension turns during also solving disassembly and installation
It moves, measurement result is caused to be not allowed, the problem of adjustment effect is bad.The elevator dragging wire rope tonometry adjusting apparatus of the present invention
Have many advantages, such as that convenient and efficient, Adjustment precision is high, regulated efficiency is high, there is very strong practicability.
Embodiment described above only expresses the several embodiments of the present invention, and description is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that those of ordinary skill in the art are come
It says, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Range.
Claims (7)
1. a kind of elevator dragging wire rope tonometry adjusting apparatus, it is characterised in that:Including multigroup measurement adjustment unit and
Acquisition process controller;Multigroup measurement adjustment unit includes adjustment component, pressure sensor and support base, the adjustment
Component and pressure sensor are arranged on the support base, and the both ends of each traction steel-cable of elevator are adjusted respectively with described measure
The support base connection of whole unit, multigroup pressure sensor for measuring adjustment unit and adjustment component are respectively used to measure and adjust
The tension of whole each traction steel-cable, multigroup pressure sensor for measuring adjustment unit are believed with the acquisition process controller
Number connection.
2. elevator dragging wire rope tonometry adjusting apparatus according to claim 1, it is characterised in that:The adjustment group
Part includes adjustment screw, upper adjusting nut and lower adjusting nut, and the adjustment screw is arranged in the upper adjusting nut and downward
It is fixed on wherein between whole nut and by the pressure sensor, the lower adjusting nut is arranged on the support base.
3. elevator dragging wire rope tonometry adjusting apparatus according to claim 2, it is characterised in that:The adjustment group
Part further includes upper locking nut and lower locking nut, and the upper locking nut is arranged on the upper end of the adjustment screw, under described
Locking nut is arranged in the adjustment screw and positioned at the inboard of the lower adjusting nut.
4. elevator dragging wire rope tonometry adjusting apparatus according to claim 3, it is characterised in that:The adjustment group
Part further includes two adjusting washers, described two adjusting washers be respectively arranged at the upper adjusting nut and pressure sensor it
Between and the lower locking nut and pressure sensor between.
5. elevator dragging wire rope tonometry adjusting apparatus according to claim 1, it is characterised in that:Multigroup survey
The pressure sensor of amount adjustment unit is connect by data line with the acquisition process controller signals.
6. elevator dragging wire rope tonometry adjusting apparatus according to claim 1, it is characterised in that:Further include display
Device, the display are connect with the acquisition process controller signals.
7. a kind of elevator dragging wire rope tonometry method of adjustment, includes the following steps:
S1. one group of measurement adjustment unit is connected respectively at the both ends of each traction steel-cable of elevator;
S2. the adjustment component of every group of measurement adjustment unit is adjusted, the pressure sensor measurement of every group of measurement adjustment unit connects therewith
The tension of the traction steel-cable connect;
S3. the tension signal of measurement is transmitted to acquisition process controller by the pressure sensor of every group of measurement adjustment unit;
S4. the tension signal of measurement is calculated and is exported by acquisition process controller;
S5. the tension of each traction steel-cable is further adjusted according to the calculating output result of acquisition process controller and is opened with meeting
Power adjustment requirement.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201611173687.4A CN108203032A (en) | 2016-12-16 | 2016-12-16 | A kind of elevator dragging wire rope tonometry adjusting apparatus and method |
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Application Number | Priority Date | Filing Date | Title |
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CN201611173687.4A CN108203032A (en) | 2016-12-16 | 2016-12-16 | A kind of elevator dragging wire rope tonometry adjusting apparatus and method |
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Publication Number | Publication Date |
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CN108203032A true CN108203032A (en) | 2018-06-26 |
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ID=62602714
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CN201611173687.4A Pending CN108203032A (en) | 2016-12-16 | 2016-12-16 | A kind of elevator dragging wire rope tonometry adjusting apparatus and method |
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Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109809275A (en) * | 2019-02-19 | 2019-05-28 | 福建省特种设备检验研究院 | A kind of traction steel-cable tensile force unevenness on-line measuring device and its working method |
CN114538237A (en) * | 2022-03-25 | 2022-05-27 | 甘肃博程技术咨询服务有限公司 | Elevator steel wire rope online monitoring alarm system, method and device |
CN114623968A (en) * | 2022-03-08 | 2022-06-14 | 浙江省特种设备科学研究院 | Steel wire rope dynamic tension measuring device based on EEMD and ML-ESN and prediction method |
CN114812900A (en) * | 2022-04-15 | 2022-07-29 | 日立电梯(中国)有限公司 | Hoisting rope torsion measuring device, system and adjusting method thereof |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060095678A (en) * | 2005-02-28 | 2006-09-01 | 오티스 엘리베이터 컴파니 | Method of belt tensioning in an elevator system |
CA2598814A1 (en) * | 2005-05-13 | 2006-11-16 | Giorgio Jezek | Device for stretching compensation in lift cables |
CN204064532U (en) * | 2014-07-29 | 2014-12-31 | 江苏省特种设备安全监督检验研究院泰州分院 | A kind of elevator dragging wire rope tension measuring device |
CN104276469A (en) * | 2013-07-10 | 2015-01-14 | 苏州博量传动设备有限公司 | Tension detection device of steel wire rope of elevator |
CN204529005U (en) * | 2015-01-14 | 2015-08-05 | 苏州博量传动设备有限公司 | Elevator suspension rope tension is measured and regulating mechanism |
CN105752798A (en) * | 2016-05-18 | 2016-07-13 | 东南电梯股份有限公司 | Lifting steel wire rope tension balance adjusting device and method |
-
2016
- 2016-12-16 CN CN201611173687.4A patent/CN108203032A/en active Pending
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20060095678A (en) * | 2005-02-28 | 2006-09-01 | 오티스 엘리베이터 컴파니 | Method of belt tensioning in an elevator system |
CA2598814A1 (en) * | 2005-05-13 | 2006-11-16 | Giorgio Jezek | Device for stretching compensation in lift cables |
CN104276469A (en) * | 2013-07-10 | 2015-01-14 | 苏州博量传动设备有限公司 | Tension detection device of steel wire rope of elevator |
CN204064532U (en) * | 2014-07-29 | 2014-12-31 | 江苏省特种设备安全监督检验研究院泰州分院 | A kind of elevator dragging wire rope tension measuring device |
CN204529005U (en) * | 2015-01-14 | 2015-08-05 | 苏州博量传动设备有限公司 | Elevator suspension rope tension is measured and regulating mechanism |
CN105752798A (en) * | 2016-05-18 | 2016-07-13 | 东南电梯股份有限公司 | Lifting steel wire rope tension balance adjusting device and method |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109809275A (en) * | 2019-02-19 | 2019-05-28 | 福建省特种设备检验研究院 | A kind of traction steel-cable tensile force unevenness on-line measuring device and its working method |
CN109809275B (en) * | 2019-02-19 | 2024-02-09 | 福建省特种设备检验研究院 | Traction steel wire rope tensioning force non-uniformity online detection device and working method thereof |
CN114623968A (en) * | 2022-03-08 | 2022-06-14 | 浙江省特种设备科学研究院 | Steel wire rope dynamic tension measuring device based on EEMD and ML-ESN and prediction method |
CN114623968B (en) * | 2022-03-08 | 2023-08-15 | 浙江省特种设备科学研究院 | Steel wire rope dynamic tension measuring device and prediction method based on EEMD and ML-ESN |
CN114538237A (en) * | 2022-03-25 | 2022-05-27 | 甘肃博程技术咨询服务有限公司 | Elevator steel wire rope online monitoring alarm system, method and device |
CN114812900A (en) * | 2022-04-15 | 2022-07-29 | 日立电梯(中国)有限公司 | Hoisting rope torsion measuring device, system and adjusting method thereof |
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Application publication date: 20180626 |