CN101943569A - Method and device thereof for testing deformation of steel wire in wire rope strand - Google Patents
Method and device thereof for testing deformation of steel wire in wire rope strand Download PDFInfo
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- CN101943569A CN101943569A CN 201010250284 CN201010250284A CN101943569A CN 101943569 A CN101943569 A CN 101943569A CN 201010250284 CN201010250284 CN 201010250284 CN 201010250284 A CN201010250284 A CN 201010250284A CN 101943569 A CN101943569 A CN 101943569A
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- level crossing
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- 238000012360 testing method Methods 0.000 title claims abstract description 27
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 19
- 239000010959 steel Substances 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 6
- 230000003287 optical effect Effects 0.000 claims abstract description 8
- 238000000691 measurement method Methods 0.000 claims description 5
- 238000007598 dipping method Methods 0.000 claims description 3
- 230000014759 maintenance of location Effects 0.000 claims description 3
- 230000000630 rising effect Effects 0.000 claims description 3
- 238000013341 scale-up Methods 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 4
- 238000002474 experimental method Methods 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention relates to a method and a device thereof for testing a deformation of a steel wire in a wire rope strand. An optical lever consisting of a plane mirror with three supporting points, a vertical measuring scale and a telescope is arranged on one side of a wire rope to be tested; two front supporting points of the plane mirror are fixed on a fixing chuck while the rear supporting point is fixedly connected to a point to be tested on the wire rope; the plane mirror can rotate by using a connecting line between the two front supporting points as an axis; the measuring scale is provided with the telescope corresponding to the plane mirror, by which a numeric value reflected on a mirror surface can be conveniently seen; the numeric value is read again after the plane mirror is rotated at a certain angle; the two numeric values are subtracted to obtain a difference value which is a value of magnification after the wire rope is stretched; and the stretched length of the deformed wire rope can be deducted by using a trigonometric function formula. The method and the device thereof for testing the deformation of the steel wire in the wire rope strand realize measurement of magnifying to read the stretched length of the small wire rope with a simple structure by using the optical lever and the principle of mirror reflection and are convenient for experiments.
Description
Technical field
The present invention relates to wire rope stress and deflection measurement, especially steel wire deformation measurement method for testing and device thereof in the strand wire in a kind of strand wire.
Background technology
Wire rope is to twist with the fingers into rope strand by steel wire, is twisted into the twisting structure of wire rope again by rope strand, wherein strand with strand between, thread between silk, twist with the fingers at a certain angle around.When wire rope bears axial load or bending, between silk and the silk owing to the length of steel wire is different different with the spatially spiral form, make the stressed and deformation of steel wire that very big difference be arranged, and in the present test of doing about wire rope, all adopt monofilament or whole rope are loaded the load change relation that rope service-life and steel wire are verified in torture test of doing, but under the whole rope of the Shang Weiyou stressing conditions, the test of steel wire deflection test in strand.
Summary of the invention
The purpose of this invention is to provide whole wire rope of a kind of test is being subjected under the drawing stress effect, the method of testing of steel wire deflection in the strand wire, it is the principle of utilizing light and direct reflection, can realize amplifying the variable that read small wire rope tensile elongation with simple structure, for people's test provides convenience.
Another object of the present invention has provided steel wire deflection proving installation in a kind of strand wire, this installs its principle of utilizing light and direct reflection, can realize amplifying the variable that read small wire rope tensile elongation with simple structure, for people's test provides convenience.
The present invention solves the technical scheme that its method problem adopted: in wire rope one side to be measured, be provided with the optical lever of forming by the level crossing that has three fulcrums, vertical scale and telescope, two front fulcrums of level crossing are fixed on testing machine fixedly on the chuck, and rear fulcrum is fixedlyed connected with the tested point on the wire rope; It is parallel with vertical scale to regulate the level crossing vertical, by coarse adjustment and accurate adjustment 0 scale up to telescopical right-angled intersection point alignment scale, and make the horizontal line of telescope barrelshift and level crossing center contour, what at this moment see in the telescope is and the rod reading r of telescope with eminence
0Apply pulling force by hydraulic jack, motor-driven chuck rising stretching wire rope, at this moment, the amount of tension of the wire rope of deformation is
ΔL, the rear fulcrum of level crossing also rise thereupon, are axle with the line between two front fulcrums, the outward-dipping θ angle that turns over of level crossing, because reflection law is as can be known, at this moment entering telescopical is that incident angle is the rod reading r at θ place
i, the angle between incident angle and the reflection angle is 2 θ; The reading that records for twice is subtracted each other, i.e. r
i-r
0=L; If the horizontal range between front fulcrum and the wire rope tested point is b, the horizontal range between front fulcrum and the scale measuring point is D, utilize trigonometric function formula tg θ=
ΔL/b, tg2 θ=L/D derives
ΔL=Lb/2D loads 2KN respectively with each measuring point, 4KN, and 6KN, 8KN repeats 5 times, and three approaching secondary data of retention data are averaged and promptly be can be used as test basis.
The technical solution adopted for the present invention to solve the technical problems is: steel wire deflection proving installation comprises testing machine, level crossing, scale and telescope in this strand wire; The hydraulic dynamometer upper and lower side of this device is provided with the motor-driven chuck that is parallel to each other and fixing chuck; Fixedly vertically be installed with wire rope to be measured between chuck and the motor-driven chuck, evenly be provided with measuring point on this wire rope; One side of this wire rope to be measured is provided with the optical lever of being made up of the level crossing that has three fulcrums, vertical scale and telescope; Three fulcrums of level crossing constitute an equilateral triangle, and two front fulcrums are fixed on fixedly on the chuck, and rear fulcrum is fixedlyed connected with the tested point on the wire rope; This level crossing can serve as that axle rotates with the line between two front fulcrums; One and the corresponding telescope of level crossing are installed on this scale, can conveniently see the content that reflects on the minute surface.
In above-mentioned strand wire in the method and apparatus of steel wire deflection test, as the measurement starting point, every interval 5mm gets a little to the wire rope force side, gets five places altogether with wire rope stiff end fag end to be measured and the about 110mm of wire rope boundary place.
Measuring point on the wire rope adopts ashbury metal spot welding, has good repeatability and stability in the time of can guaranteeing the wire rope distortion preferably.
The invention has the beneficial effects as follows: steel wire deformation measurement method for testing and device thereof utilize the principle of optical lever and direct reflection in this strand wire, realize amplifying the measurement of reading small wire rope tensile elongation with simple structure, for people's test provides convenience.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Accompanying drawing 1 is the side structure and the principle schematic of steel wire deformation measurement method for testing and device thereof in the strand wire.
Among the figure, 1. motor-driven chuck, 2. wire rope, 3. fixedly chuck, 4. scale, 5. telescope, 6. front fulcrum, 7. level crossing, 8. rear fulcrum.
Embodiment
In the accompanying drawings, the hydraulic dynamometer upper and lower side of steel wire deflection proving installation in the strand wire is provided with the motor-driven chuck 1 that is parallel to each other and fixing chuck 3; Fixedly vertically be installed with wire rope 2 to be measured between chuck 3 and the motor-driven chuck 1, evenly be provided with measuring point on this wire rope 2; One side of this wire rope 2 to be measured is provided with the optical lever of being made up of the level crossing 7 that has three fulcrums, vertical scale 4 and telescope 5; Three fulcrums of level crossing 7 constitute an equilateral triangle, and two front fulcrums 6 are fixed on testing machine fixedly on the chuck 3, and rear fulcrum 8 is fixedlyed connected with the tested point on the wire rope 2; This level crossing 7 can serve as that axle rotates with the line between two front fulcrums 6; One and level crossing 7 corresponding telescopes 5 are installed on this scale 4, can conveniently see the content that reflects on the minute surface.
When testing, it is parallel with vertical scale 4 to regulate level crossing 7 verticals, by coarse adjustment and accurate adjustment 0 scale up to the right-angled intersection point alignment scale of telescope 5, and make the horizontal line of telescope 5 barrelshifts and level crossing 7 centers contour, what at this moment see in the telescope 5 is and the rod reading r of telescope 5 with eminence
0Apply pulling force by hydraulic jack, motor-driven chuck 1 rising stretching wire rope 2, at this moment, the amount of tension of the wire rope 2 of deformation is
ΔL, the rear fulcrum 8 of level crossing 7 also rise thereupon, are axle with the line between two front fulcrums 6, the level crossing 7 outward-dipping θ angles that turn over, because reflection law is as can be known, what at this moment enter telescope 5 is that incident angle is the rod reading r at θ place
i, the angle between incident angle and the reflection angle is 2 θ; The reading that records for twice is subtracted each other, i.e. r
i-r
0=L; If the horizontal range between front fulcrum 6 and wire rope 2 measuring points is b, the horizontal range between front fulcrum 8 and the scale 4 is D, can get tg θ=
ΔL/b, tg2 θ=L/D derives
ΔL=Lb/2D loads 2KN respectively with each measuring point, 4KN, and 6KN, 8KN repeats 5 times, and three approaching secondary data of retention data are averaged and promptly be can be used as test basis.
Claims (2)
1. the method and the device thereof of the test of steel wire deflection in the strand wire, wire rope to be measured is fixed on the hydraulic dynamometer, with wire rope stiff end fag end to be measured and the about 110mm of wire rope boundary place as measuring starting point, every interval 5mm gets a little to the wire rope force side, get five places altogether, it is characterized in that: in a side of wire rope to be measured (2), be provided with by the level crossing that has three fulcrums (7), the optical lever that vertical scale (4) and telescope (5) are formed, two front fulcrums (6) of level crossing (7) are fixed on testing machine fixedly (3) on the chuck, and rear fulcrum (8) is fixedlyed connected with the tested point on the wire rope (2); It is parallel with vertical scale (4) to regulate level crossing (7) vertical, by coarse adjustment and accurate adjustment 0 scale up to the right-angled intersection point alignment scale (4) of telescope (5), and make the shaft horizontal line of telescope (5) lens barrel and level crossing (7) center contour, what at this moment see in the telescope (5) is and the rod reading r of telescope (5) with eminence
0Apply pulling force by hydraulic jack, motor-driven chuck (1) rising stretching wire rope (2), at this moment, the amount of tension of the wire rope of deformation (2) is
ΔL, the rear fulcrum (8) of level crossing (7) also rise thereupon, are axle with the line between two front fulcrums (6), the outward-dipping θ angle that turns over of level crossing (7), because reflection law is as can be known, what at this moment enter telescope (5) is that incident angle is the rod reading r at θ place
i, the angle between incident angle and the reflection angle is 2 θ; The reading that records for twice is subtracted each other, i.e. r
i-r
0=L; If the horizontal range between front fulcrum (6) and wire rope (2) measuring point is b, the horizontal range between rear fulcrum (8) and wire rope (2) measuring point is D, utilize trigonometric function formula tg θ=
ΔL/b, tg2 θ=L/D derives
ΔL=Lb/2D loads 2KN respectively with each measuring point, 4KN, and 6KN, 8KN repeats 5 times, and three approaching secondary data of retention data are averaged as test basis.
2. adopt steel wire deformation measurement method for testing in the described strand wire of claim 1 and device at the hydraulic dynamometer upper and lower side, is provided with the motor-driven chuck (1) that is parallel to each other and fixing chuck (3); Fixedly vertically be installed with wire rope to be measured (2) between chuck (3) and the motor-driven chuck (1), this wire rope evenly is provided with measuring point on (2); It is characterized in that: a side of this wire rope to be measured (2) is provided with the optical lever of being made up of the level crossing that has three fulcrums (7), vertical scale (4) and telescope (5); Three fulcrums of level crossing (7) constitute an equilateral triangle, and two front fulcrums (6) are fixed on testing machine fixedly on the chuck (3), and rear fulcrum (8) is fixedlyed connected with the tested point on the wire rope (2); This level crossing (7) can serve as that axle rotates with the line between two front fulcrums (6); One and the corresponding telescope of level crossing (7) (5) are installed on this scale (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102502841A CN101943569B (en) | 2010-08-04 | 2010-08-04 | Method and device thereof for testing deformation of steel wire in wire rope strand |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010102502841A CN101943569B (en) | 2010-08-04 | 2010-08-04 | Method and device thereof for testing deformation of steel wire in wire rope strand |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101943569A true CN101943569A (en) | 2011-01-12 |
| CN101943569B CN101943569B (en) | 2012-06-13 |
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| CN2010102502841A Expired - Fee Related CN101943569B (en) | 2010-08-04 | 2010-08-04 | Method and device thereof for testing deformation of steel wire in wire rope strand |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589444A (en) * | 2012-02-11 | 2012-07-18 | 西南大学 | Concave mirror catoptric imaging type optical lever micro displacement measurement system |
| CN103018103A (en) * | 2012-12-17 | 2013-04-03 | 吉林大学 | Comprehensive designing experiment equipment and method for measuring Young modulus of metal wire |
| CN103776380A (en) * | 2014-02-14 | 2014-05-07 | 江南大学 | Dual-purpose micro measurement optical lever |
| CN104748700A (en) * | 2015-03-26 | 2015-07-01 | 仲炳华 | Indoor door moving detector |
| CN104833574A (en) * | 2015-05-14 | 2015-08-12 | 云南师范大学 | Single slit diffraction experiment measurement device |
| CN106716055A (en) * | 2014-04-23 | 2017-05-24 | 哈利伯顿能源服务公司 | Measuring hookload |
| CN107576570A (en) * | 2017-09-27 | 2018-01-12 | 江苏法尔胜特钢制品有限公司 | The cupping machine of steel wire rope |
| CN107607408A (en) * | 2017-08-21 | 2018-01-19 | 江南大学 | A kind of soft material mechanical property measuring device and method |
| CN107907062A (en) * | 2017-11-13 | 2018-04-13 | 中国计量大学 | Bearing bore diameter measuring method based on the sensitive lever principle of double optics |
| CN109238181A (en) * | 2018-09-29 | 2019-01-18 | 昆明理工大学 | A kind of elevator rail planeness detection system and method based on multistage optical lever |
| CN112361969A (en) * | 2020-11-20 | 2021-02-12 | 中国航空工业集团公司北京长城计量测试技术研究所 | Detection apparatus for suspension wire angularity for acceleration sensor |
| CN114577142A (en) * | 2022-03-25 | 2022-06-03 | 浙江贝盛光伏股份有限公司 | Detection device and detection method for bending change of optical lever measurement assembly |
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| JP2007309710A (en) * | 2006-05-17 | 2007-11-29 | Enshu Ltd | Microperiodic groove observation method and observation device thereof, microperiodic groove machining observation method and machining observation device thereof |
| KR20080051478A (en) * | 2006-12-05 | 2008-06-11 | 주식회사 포스코 | Apparatus and method for generating grid for the strip deformation measurement |
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2010
- 2010-08-04 CN CN2010102502841A patent/CN101943569B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1112672A (en) * | 1994-05-24 | 1995-11-29 | 方础股份有限公司 | Laser distance measuring method |
| CN2655173Y (en) * | 2003-11-10 | 2004-11-10 | 张慧军 | Remote-point relative position measuring ruler |
| CN1563884A (en) * | 2004-04-07 | 2005-01-12 | 华南理工大学 | Non-contact measuring method and system for thickness and width |
| JP2007309710A (en) * | 2006-05-17 | 2007-11-29 | Enshu Ltd | Microperiodic groove observation method and observation device thereof, microperiodic groove machining observation method and machining observation device thereof |
| KR20080051478A (en) * | 2006-12-05 | 2008-06-11 | 주식회사 포스코 | Apparatus and method for generating grid for the strip deformation measurement |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102589444A (en) * | 2012-02-11 | 2012-07-18 | 西南大学 | Concave mirror catoptric imaging type optical lever micro displacement measurement system |
| CN103018103A (en) * | 2012-12-17 | 2013-04-03 | 吉林大学 | Comprehensive designing experiment equipment and method for measuring Young modulus of metal wire |
| CN103776380A (en) * | 2014-02-14 | 2014-05-07 | 江南大学 | Dual-purpose micro measurement optical lever |
| CN106716055A (en) * | 2014-04-23 | 2017-05-24 | 哈利伯顿能源服务公司 | Measuring hookload |
| CN104748700A (en) * | 2015-03-26 | 2015-07-01 | 仲炳华 | Indoor door moving detector |
| CN104748700B (en) * | 2015-03-26 | 2018-04-17 | 上海诚云建设工程质量检测有限公司 | Indoor sliding door detector |
| CN104833574A (en) * | 2015-05-14 | 2015-08-12 | 云南师范大学 | Single slit diffraction experiment measurement device |
| CN104833574B (en) * | 2015-05-14 | 2017-08-25 | 云南师范大学 | A kind of diffraction experiment by narrow opening measurement apparatus |
| CN107607408A (en) * | 2017-08-21 | 2018-01-19 | 江南大学 | A kind of soft material mechanical property measuring device and method |
| CN107576570A (en) * | 2017-09-27 | 2018-01-12 | 江苏法尔胜特钢制品有限公司 | The cupping machine of steel wire rope |
| CN107907062A (en) * | 2017-11-13 | 2018-04-13 | 中国计量大学 | Bearing bore diameter measuring method based on the sensitive lever principle of double optics |
| CN107907062B (en) * | 2017-11-13 | 2019-11-29 | 中国计量大学 | Bearing bore diameter measurement method based on the sensitive lever principle of double optics |
| CN109238181A (en) * | 2018-09-29 | 2019-01-18 | 昆明理工大学 | A kind of elevator rail planeness detection system and method based on multistage optical lever |
| CN109238181B (en) * | 2018-09-29 | 2023-09-26 | 昆明理工大学 | Elevator track flatness detection system and method based on multistage optical lever |
| CN112361969A (en) * | 2020-11-20 | 2021-02-12 | 中国航空工业集团公司北京长城计量测试技术研究所 | Detection apparatus for suspension wire angularity for acceleration sensor |
| CN112361969B (en) * | 2020-11-20 | 2022-03-29 | 中国航空工业集团公司北京长城计量测试技术研究所 | Detection apparatus for suspension wire angularity for acceleration sensor |
| CN114577142A (en) * | 2022-03-25 | 2022-06-03 | 浙江贝盛光伏股份有限公司 | Detection device and detection method for bending change of optical lever measurement assembly |
| CN114577142B (en) * | 2022-03-25 | 2024-05-31 | 浙江贝盛光伏股份有限公司 | Detection device and detection method for bending change of optical lever measurement assembly |
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|---|---|
| CN101943569B (en) | 2012-06-13 |
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Effective date of registration: 20120328 Address after: School of mechanical and electrical engineering, Xuzhou Normal University, 101 Shanghai Road, Copper Mt. New District, Jiangsu, Xuzhou Applicant after: Xuzhou Normal University Address before: 221011 School of mechanical and electrical engineering, Xuzhou Normal University, 101 Shanghai Road, Copper Mt. New District, Jiangsu, Xuzhou Applicant before: Ma Jun |
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