CN107314895A - The rotation detection device and detection method of a kind of wind-powered electricity generation structure stud - Google Patents
The rotation detection device and detection method of a kind of wind-powered electricity generation structure stud Download PDFInfo
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- CN107314895A CN107314895A CN201710542458.3A CN201710542458A CN107314895A CN 107314895 A CN107314895 A CN 107314895A CN 201710542458 A CN201710542458 A CN 201710542458A CN 107314895 A CN107314895 A CN 107314895A
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- Prior art keywords
- rotation
- wind
- stud
- electricity generation
- powered electricity
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
Abstract
The invention provides a kind of rotation detection device of wind-powered electricity generation structure stud, including frame (1), clamping device (2), rotation platform (3), drive device (4), control system (5), pull rope (6), gravity stretching device (7), axial force sensor (8), torsion torque sensor (9), angular displacement sensor (10) and display (11), wherein, clamping device (2) is fixed in frame (1), rotation platform (3) has multiple reversing arrangements (3 1), one end that one end connection bolt for wind power generation of pull rope (6) is not clamped, the other end bypasses multiple reversing arrangements (3 1) successively, gravity stretching device (7) is suspended on one end that pull rope (6) bypasses last reversing arrangement (3 1), the data transfer of measurement and drafting are represented to the rotation pull-up curve of rotatory power.Corresponding detection method is additionally provided, the domestic rotating detection blank for wind-powered electricity generation structure stud has been filled up.
Description
Technical field
The present invention relates to the detection field of stud, the rotation detection device of particularly a kind of wind-powered electricity generation structure stud and detection side
Method.
Background technology
Structure stud is typically to be used for all kinds of engineering structures of frictional connection, and structure stud has gone out must to be fulfilled for whole machineries
Performance and chemical composition requirement are outer, it is necessary to realize and require functional, that is, the control preloaded, the reasonably stability preloaded
And effectively control, it is directly connected to the installation effect and service life of structural member.
Last century, China, which formulates, to finish after developed country's advanced technology, standard and the international standards such as the U.S., Japan is used for reference
The technical specification of structure stud simultaneously starts to produce structure stud, here it is GB/T1228-1231《The steel construction big turret head of high intensity
Bolt connection pair》And GB/T3632《Torsional shear type high-strength bolt for steel structure auxiliary connection》, specification is from M12-M30, and surface is this
Color, lubricating requirement is reached after phosphatization, saponification process, realizes the control preloaded, while preloaded to prevent stud
Discreteness, defines the standard deviation of moment of torsion number.
Different from said structure stud, it is in mostly under severe service condition for the structure stud that wind power plant is equipped,
Therefore the requirement to stud corrosion resistance is very high, can have two kinds of selection modes, one kind is weather resistance steel, and this material is relative
Resource is few, cost is high, and second is carbon steel or steel alloy, and this material must aid in good anti-corrosion measure, just adapt to
The use of wind park.The preservative treatment used mostly at present is galvanizing or Dacroment, but the coating of galvanizing is very thick, and
And surfaces versus rough, the screwing property of stud can actually be interfered.
Generally before stud manufacturer is delivered for use rotatory power test will not be carried out to zinc-plated wind-powered electricity generation structure bolt, this
Sample will produce very big potential safety hazard, for the stud without lubrication or lack of lubrication, in not up to regulation corner, nut
Just bitten with stud or thread be snapped it is bad.The structure stud of wind-powered electricity generation equipment, either leaf is electric with stud or tower spiral shell
Post, general requirements is larger, especially tower stud, and stress is big, and load-bearing requirements are high, it is necessary to assure its quality, the peace for ensureing equipment
Row for the national games, therefore, it is necessary to design the rotation detection device and detection method of a set of wind-powered electricity generation structure stud.
The content of the invention
It is an object of the invention to provide a kind of rotation detection device of wind-powered electricity generation structure stud, including frame, clamping device,
Rotation platform, drive device, control system, pull rope, gravity stretching device, axial force sensor, torsion torque sensor, angular displacement are passed
Sensor and display, wherein, the clamping device is fixed in the frame, one end for clamping wind-powered electricity generation stud, the rotation
Turning platform has multiple reversing arrangements, and the rotation centerline of multiple reversing arrangements and the rotation platform is equidistantly isolated, institute
The one end for stating pull rope connects one end that the bolt for wind power generation is not clamped, and the other end of the pull rope bypasses multiple change successively
To device, the gravity stretching device is suspended on one end that the pull rope bypasses last reversing arrangement, will according to test
Ask the center of the gravity stretching device and the centering of the pivot of the rotation platform of adjusting, the axial force sensor,
Torsion torque sensor and angular displacement sensor and the wind-powered electricity generation structure bolt connection, the data transfer of measurement is set to the test
Standby control system is controlled signal and set out, and draws the rotation-pull-up curve for representing rotatory power.
It is preferred that, the data of the detection means measurement are included between axial tension, stud and nut suffered by stud
The development length of relative rotation angle, the moment of torsion for rotating nut and stud.
It is preferred that, dynamometry error≤± 2% of the detection means.
It is preferred that, repeatability error≤± 1% of the detection means.
It is preferred that, rotation angle measurement error≤± 1 ° of the detection means.
It is preferred that, moment of torsion actual error≤± 1% of the detection means.
It is preferred that, the development length measurement error ± 1/100mm of the stud of the detection means.
It is preferred that, the drive device of the detection means uses fluid pressure drive device.
It is preferred that, the reversing arrangement is pulley, and the pulley has pulley base.
The purpose of the present invention is also realized by a kind of rotary detecting method of wind-powered electricity generation structure stud, is comprised the following steps：(1)
Tested wind-powered electricity generation structure stud, axial force sensor, torsion torque sensor and angular displacement sensor are installed；(2) tested according to functional form
It is required that, the rotation-pull-up curve for representing rotatory power is drawn by the control system of detection device；(3) in rotation pull-up curve
Pulling force suffered by the middle stud of record respectively reaches defined maximum for the first time, the 90% of maximum, maximum 70% when, nut
The angle of rotation；(4) record rotation-tensile test after, stud, nut kill and thread damage after transient state pulling force,
Torsion and axle power；(5) carry out preloading experiment, record pulling force-torque curve, so as to measure acquisition torque coefficient, standard deviation
Difference and the coefficient of variation and the stability for controlling lubricating condition.
Using the rotation detection device and detection method of the wind-powered electricity generation structure stud, the rotatory of wind-powered electricity generation structure stud has been filled up
The domestic blank of detection, improves detectability of the manufacturer to rotatory power before being delivered for use, so as to improve wind-powered electricity generation knot
The service life and security of structure stud.
According to the accompanying drawings to the detailed description of the specific embodiment of the invention, those skilled in the art will be brighter
Above-mentioned and other purposes, the advantages and features of the present invention.
Brief description of the drawings
Some specific embodiments of the present invention are described in detail by way of example, and not by way of limitation with reference to the accompanying drawings hereinafter.
Identical reference denotes same or similar part or part in accompanying drawing.It should be appreciated by those skilled in the art that these
What accompanying drawing was not necessarily drawn to scale.The target and feature of the present invention is considered to will be apparent from below in conjunction with the description of accompanying drawing,
In accompanying drawing：
Fig. 1 is the depression value detection device structural representation of the non-contact hand-held hammer-falling deflectometer according to the embodiment of the present invention
Figure.
Fig. 2 is the depression value detection method flow chart of the non-contact hand-held hammer-falling deflectometer according to the embodiment of the present invention.
Embodiment
Referring to accompanying drawing 1, a kind of rotation detection device of wind-powered electricity generation structure stud, including frame 1, clamping device 2, rotation platform
3rd, drive device 4, control system 5, pull rope 6, gravity stretching device 7, axial force sensor 8, torsion torque sensor 9, angular displacement are passed
Sensor 10 and display 11, wherein, the clamping device 2 is fixed in frame 1, one end for clamping wind-powered electricity generation stud, rotation
Platform 3 has multiple reversing arrangement 3-1, and multiple reversing arrangement 3-1 and rotation platform 9 rotation centerline are equidistantly isolated,
One end that one end connection bolt for wind power generation of pull rope 6 is not clamped, the other end of pull rope 6 bypasses multiple reversing arrangement 3- successively
1, gravity stretching device 7 is suspended on one end that pull rope 6 bypasses last reversing arrangement 3-1, and weight is adjusted according to test request
The center of power stretching device 7 and the centering of the pivot of rotation platform 3, axial force sensor 8, torsion torque sensor 9 and angle
Displacement transducer 10 and wind-powered electricity generation structure bolt connection, the control system 5 of the data transfer of measurement to test equipment is controlled
Signal sets out, and draws the rotation-pull-up curve for representing rotatory power.In production practices find, without lubrication or lubricate not
Foot ground stud is to can't pass this experiment completely, requirement of experiment can be adjusted for wind-powered electricity generation stud, but principle is consistent
, therefore the data of detection means measurement include the relative rotation angle between axial tension, stud and nut suffered by stud
The development length of degree, the moment of torsion of rotation nut and stud.This is according to the continuous improvement of technological means and to wind-powered electricity generation structure
The requirement of experimental facilities and technical parameter that the strict control of stud installation requirement is proposed.According to experimental principle, it is desirable to which detection is set
It is standby that there is enough rigidity, and propose following technical indicator：The dynamometry error of detection means≤± 2%, the weight of detection means
Renaturation error≤± 1%, rotation angle measurement error≤± 1 of detection meanso, the moment of torsion actual error of detection means≤±
1%, the development length measurement error ± 1/100mm of the stud of detection means, the drive device 4 of detection means uses hydraulic-driven
Device or other drive devices detected for machinery rotation, as long as above-mentioned precision can be reached.Reversing arrangement 3-1 is
Pulley, pulley has pulley base.
Referring to Fig. 2, a kind of rotary detecting method of wind-powered electricity generation structure stud comprises the following steps：(1) tested wind-powered electricity generation knot is installed
Structure stud, axial force sensor, torsion torque sensor and angular displacement sensor；(2) according to functional form test request, set by detection
Standby control system draws the rotation-pull-up curve for representing rotatory power；(3) stud institute is recorded respectively in rotation pull-up curve
Reached defined maximum for the first time by pulling force, the 90% of maximum, maximum 70% when, the angle of nut rotation；(4) remember
Record after rotation-tensile test, stud, nut kill and thread damage after transient state pulling force, torsion and axle power；(5)
Progress preloads experiment, records pulling force-torque curve, thus measure acquisition torque coefficient, standard deviation and the coefficient of variation and
Control the stability of lubricating condition.
Pulling force suffered by stud is reached into defined maximum F for the first timemax, the 90% of maximum, maximum 70% when,
The angle of nut rotation is recorded as θ respectively2i, θ1i, θpi.So agreement with experimental is defined as：When nut seat and stud are supported
The total clamping length in face under 2 times of diameter, then the anglec of rotation at 90 degree between 180 degree；When nut seat and stud
The total clamping length of bearing-surface is between 2 times of diameter and 6 times, then the anglec of rotation is between 120 degree and 210 degree；When nut branch
Bearing surface and the total clamping length of stud bearing-surface between 6 times of diameter and 10 times, then the anglec of rotation 150 degree and 240 degree it
Between.
After rotation-tensile test, stud, nut should not be killed, and screw thread is not destroyed, and the stud that can be tested by this is demonstrate,proved
Its bright lubricating condition is good, needs further to carry out preloading experiment thereafter, i.e. pulling force-torsional moment test, so as to measure moment of torsion system
Number, standard deviation and the coefficient of variation, the stability for controlling lubricating condition.By computer drawing the total data of experimentation all
Precise acquisition, data supporting is provided for the production of wind-powered electricity generation structure stud, installation.In addition to regulation preloads and seeks the method for moment of torsion,
It can also be tried to achieve and preloaded by prescribed torque, at the construction field (site), later approach is more direct effective, certainly, and control is preloaded
The method of lotus construction also has a lot, such as preloads packing ring, can be more convenient simply, but the cost of packing ring is higher.
Using the rotation detection device and detection method of the wind-powered electricity generation structure stud, the rotatory of wind-powered electricity generation structure stud has been filled up
The domestic blank of detection, improves detectability of the manufacturer to rotatory power before being delivered for use, so as to improve wind-powered electricity generation knot
The service life and security of structure stud.
Although the present invention is described by reference to specific illustrative embodiment, will not be by these embodiments
Restriction and only limited by accessory claim.It should be understood by those skilled in the art that can be without departing from the present invention's
Embodiments of the invention can be modified and be changed in the case of protection domain and spirit.
Claims (10)
1. a kind of rotation detection device of wind-powered electricity generation structure stud, it is characterised in that：Including frame (1), clamping device (2), rotation
Platform (3), drive device (4), control system (5), pull rope (6), gravity stretching device (7), axial force sensor (8), torsion
Sensor (9), angular displacement sensor (10) and display (11), wherein, the clamping device (2) is fixed on the frame (1)
On, one end for clamping wind-powered electricity generation stud, the rotation platform (3) has multiple reversing arrangements (3-1), multiple reversing arrangements
(3-1) and the rotation platform (3) rotation centerline are equidistantly isolated, and one end of the pull rope (6) connects the wind
One end that electric bolt is not clamped, the other end of the pull rope (6) bypasses multiple reversing arrangements (3-1), the gravity successively
Stretching device (7) is suspended on one end that the pull rope (6) bypasses last reversing arrangement (3-1), is adjusted according to test request
The center of the whole gravity stretching device (7) and the centering of the pivot of the rotation platform (3), the axial force sensor
(8), torsion torque sensor (9) and angular displacement sensor (10) and the wind-powered electricity generation structure bolt connection, by the data transfer of measurement
Control system (5) to the test equipment is controlled signal and set out, and draw represent rotatory power rotation-pulling force it is bent
Line.
2. a kind of rotation detection device of wind-powered electricity generation structure stud according to claim 1, it is characterised in that：The detection dress
Put torsion of the data of measurement including the relative rotation angle between axial tension, stud and the nut suffered by stud, rotation nut
The development length of square and stud.
3. a kind of rotation detection device of wind-powered electricity generation structure stud according to claim 1, it is characterised in that：The detection dress
The dynamometry error put≤± 2%.
4. a kind of rotation detection device of wind-powered electricity generation structure stud according to claim 1, it is characterised in that：The detection dress
The repeatability error put≤± 1%.
5. a kind of rotation detection device of wind-powered electricity generation structure stud according to claim 1, it is characterised in that：The detection dress
The rotation angle measurement error put≤± 1 °.
6. a kind of rotation detection device of wind-powered electricity generation structure stud according to claim 1, it is characterised in that：The detection dress
The moment of torsion actual error put≤± 1%.
7. a kind of rotation detection device of wind-powered electricity generation structure stud according to claim 1, it is characterised in that：The detection dress
Development length measurement error ± the 1/100mm for the stud put.
8. a kind of rotation detection device of wind-powered electricity generation structure stud according to claim 1, it is characterised in that：The detection dress
The drive device put uses fluid pressure drive device.
9. a kind of rotation detection device of wind-powered electricity generation structure stud according to claim 1, it is characterised in that：The commutation dress
(3-1) is put for pulley, the pulley has pulley base.
10. a kind of rotary detecting method of wind-powered electricity generation structure stud, it is characterised in that comprise the following steps：(1) tested wind-powered electricity generation is installed
Structure stud, axial force sensor (8), torsion torque sensor (9) and angular displacement sensor (10)；(2) will according to functional form test
Ask, the rotation-pull-up curve for representing rotatory power is drawn by the control system (5) of detection device；(3) in rotation pull-up curve
Pulling force suffered by the middle stud of record respectively reaches defined maximum for the first time, the 90% of maximum, maximum 70% when, nut
The angle of rotation；(4) record rotation-tensile test after, stud, nut kill and thread damage after transient state pulling force,
Torsion and axle power；(5) carry out preloading experiment, record pulling force-torque curve, so as to measure acquisition torque coefficient, standard deviation
Difference and the coefficient of variation and the stability for controlling lubricating condition.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542458.3A CN107314895B (en) | 2017-07-05 | 2017-07-05 | A kind of rotation detection device and detection method of wind-powered electricity generation structure stud |
| PCT/CN2017/091934 WO2019006720A1 (en) | 2017-07-05 | 2017-07-06 | Device and method for detecting rotation of stud of wind power structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710542458.3A CN107314895B (en) | 2017-07-05 | 2017-07-05 | A kind of rotation detection device and detection method of wind-powered electricity generation structure stud |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107314895A true CN107314895A (en) | 2017-11-03 |
| CN107314895B CN107314895B (en) | 2018-10-09 |
Family
ID=60180460
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710542458.3A Active CN107314895B (en) | 2017-07-05 | 2017-07-05 | A kind of rotation detection device and detection method of wind-powered electricity generation structure stud |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN107314895B (en) |
| WO (1) | WO2019006720A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113945372A (en) * | 2021-10-15 | 2022-01-18 | 上海天乘实业有限公司 | Automatic intelligent detection system for wind power threaded sleeve accumulated liquid coating |
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| JPS59120839A (en) * | 1982-12-27 | 1984-07-12 | Kawasaki Steel Corp | Torque shaft type bolt testing machine |
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Also Published As
| Publication number | Publication date |
|---|---|
| WO2019006720A1 (en) | 2019-01-10 |
| CN107314895B (en) | 2018-10-09 |
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Effective date of registration: 20201019 Address after: 315800 no.612 Fuchunjiang Road, Beilun District, Ningbo City, Zhejiang Province Patentee after: NINGBO DAZHI MACHINE TECHNOLOGY Co.,Ltd. Address before: 350000 unit 804, building 20, Binjiang trading town, Changle Town, Changle, Fuzhou. Patentee before: FUZHOU CHANGLE SANHU INFORMATION TECHNOLOGY Co.,Ltd. |