CN106885647A - Screw thread torsion characteristics measurement apparatus - Google Patents
Screw thread torsion characteristics measurement apparatus Download PDFInfo
- Publication number
- CN106885647A CN106885647A CN201710104072.4A CN201710104072A CN106885647A CN 106885647 A CN106885647 A CN 106885647A CN 201710104072 A CN201710104072 A CN 201710104072A CN 106885647 A CN106885647 A CN 106885647A
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- China
- Prior art keywords
- screw thread
- cover plate
- side cover
- bolt
- measurement apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
- G01L5/24—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes for determining value of torque or twisting moment for tightening a nut or other member which is similarly stressed
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Details Of Spanners, Wrenches, And Screw Drivers And Accessories (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Screw thread torsion characteristics measurement apparatus of the present invention, are related to a kind of measurement apparatus in mechanical connection field, specially a kind of device for measuring threaded connector torsion characteristics.Screw thread torsion characteristics measurement apparatus include：Axially loaded mechanism, supporting construction, measured screw thread are to, torque wrench；With measured screw thread to being connected, the other end is radially positioned in supporting construction by being engaged for axially loaded mechanism one end；Measured screw thread by bolt to being installed on the support structure；Torque wrench is sleeved on the bolt of measured screw thread pair.The present invention has the advantages that simple mechanism, simple processing, easy to use, data are accurate, belongs to the Novel threaded torsion characteristics measurement apparatus for studying thread joined structure mechanical characteristic.
Description
Technical field
Screw thread torsion characteristics measurement apparatus of the present invention, are related to a kind of measurement apparatus in mechanical connection field, specifically
It is a kind of device for measuring threaded connector torsion characteristics.
Background technology
Screw connection structure is simple, and convenient disassembly, type is various, is most widely used connected mode in Automatic manual transmission.Tool
Body application such as skyscraper, building surface in big industrial factory and exhibition center, bridge, station boiler, wind-power electricity generation, highway, railway, electromechanical dress
Standby, harbour machinery, large-scale stadium, subway and Light Rail Project, urban interchange, overpass, environment-friendly engineering, city is public sets
Apply and the structural steelwork project such as one off houses.
In engineering goods assembling, threaded fastener assembling quality is to ensure the basis of mechanical quality and normal operation.Mesh
Preceding practical method most economical on assembly technology is to realize the control of axial pre tightening force indirectly by control mode, also referred to as
Torque Control method.But Torque Control method provides one typically by (such as the common coarse thread of steel, unlubricated) under certain condition
Torque coefficient average value estimates pretightning force, thus precision is not high, need the occasion of strict control pretightning force to be difficult to meet will
Ask.
Thread joined structure ensures the conjunction of the reasonable selection and pretightning force that it is critical only that threaded fastener of its reliability
Reason control.However, because the country is in the selection of threaded fastener and the control aspect also Shortcomings of pretightning force.Such as pretightning force point
Cloth scattered error is excessive, is the positive connection for ensureing screw thread, would generally be selected than larger safety coefficient in design, so,
Although overload will not be caused to destroy, the pretightning force that threaded fastener model is on active service greatly very much is relatively very low, so not only
It is unfavorable for giving full play to the efficiency of threaded fastener, while pretightning force is relatively too small, is also unfavorable for the loosing prevention of threaded fastener
Performance and anti-fatigue performance give full play to.
There is complex structure, use inconvenience, function in the special experimental provision of current screw thread torsion characteristics measurement and method
Single the problems such as, it is unfavorable for that careful research screw thread optimum preload, assembling mode, stress vibration frequency and loosening etc. are key and asks
Topic.Therefore in the urgent need to designing a kind of new special measurement equipment, the torsion characteristics of screw thread position are measured, obtains reliable spiral shell
Line connects torsion characteristics data, is easy to be threadedly coupled the research that becomes more meticulous of key issue, and then to determine to meet required precision
Pretightening technology flow provides scientific basis.
For it is above-mentioned the problems of in the prior art, a kind of new screw thread torsion characteristics measurement dress of research and design
Put, be the problems of in the prior art very necessary so as to overcome.
The content of the invention
In view of it is above-mentioned the problems of in the prior art, the purpose of the present invention is that a kind of new screw thread of research and design is turned round
Force characteristic measurement apparatus testing stand.It is used to solve screw thread torsion characteristics measuring study experimental bench shortage, and existing experimental provision exists
The problem that the aspects such as structure, function, practicality are present.
What technical solution of the invention was realized in：
A kind of screw thread torsion characteristics measurement apparatus of the present invention, its structure includes：Axially loaded mechanism, support knot
Structure, measured screw thread are to, torque wrench；With measured screw thread to being connected, the other end is matched somebody with somebody by contact for axially loaded mechanism one end
Conjunction is radially positioned in supporting construction；Measured screw thread by bolt to being installed on the support structure；Torque wrench be sleeved on by
Measure on the bolt of screw thread pair；
Supporting construction of the present invention includes：Bearing, loading side cover plate, sleeve, briquetting, screw thread side cover plate；Sleeve leads to
Briquetting is crossed to be installed on bearing；Loading side cover plate and screw thread side cover plate are positioned on sleeve by bolt；
Axially loaded mechanism of the present invention includes：Hand is wheel, pull bar, loading spanner, nut, pulling force sensor, bullet
Spring, hook；Between spring is installed on two hooks；Pulling force sensor two ends are connected by screw thread with hook and pull bar respectively；Pull bar
In through hole loaded on loading side cover plate；Nut is spun on the pull bar on the outside of loading side cover plate by screw thread；Loading spanner dress
In on nut；Hand is fixed on wheel on pull bar by screw；
Measured screw thread of the present invention is to including experiment nut and experiment bolt；Experiment nut is loaded on spiral shell by screw
The outside of line side cover plate, experiment bolt is connected with experiment nut by screw thread；The one end for testing bolt is connected with hook, separately
One end is set with torque wrench.
Spring axial rigidity of the present invention is between 100000~1000000N/m；
0~10000N of pulling force sensor measurement range of the present invention, exports 0~10V voltage signals, possesses by number
The function of tension measurement and analysis is carried out according to acquisition system；
0~20N.m of torque wrench measurement range of the present invention, exports 0-10 voltage signals, possesses and is adopted by data
Collecting system carries out the function of torque measurement and analysis.
Principle of the invention and function are：
The principle of the invention be carry out screw thread torsion characteristics measure when hold by hand handle-bar grip in case pull bar produce twist motion,
So that pull bar can only be moved in the circumferential direction, the axial location that nut adjusts pull bar is rotated by loading spanner, pull bar pulls spring to become
Shape, by pulling force sensor and real-time measurement axial tension.Under given axial tension, torque wrench is slowly pulled with hand, turned round
Square spanner surveys torque value first can slowly be increased, afterwards slightly bounce suddenly, while torque wrench generation is notable circumferentially displaced, now
The moment of torsion of acquisition is the threaded pre-tightening torque value under the axial tension.By changing experiment bolt and experiment nut, can carry out
Different lubricating conditions, different surface roughness, temperature etc. influence to test on screw thread torsion characteristics.
It is an advantage of the invention that it will be apparent that being mainly manifested in：
1st, it is of the invention to use, solve that screw thread torsion measures special experimental provision and the structure existing for method is answered
Miscellaneous, disturbing factor is more, the problems such as measurement structure accuracy is not high；
2nd, the present invention can carry out different lubricating conditions, different thread surface roughness, different helicitic texture parameters and material
Lower screw thread torsion characteristics experiment, is that relation between research nut screwing clamping torque and axial pressing force and threaded connector design are provided
Foundation and support, belong to the novel experiment device of tailored version.
The present invention has the advantages that simple mechanism, simple processing, easy to use, data are accurate, therefore belongs to a kind of for grinding
Study carefully the Novel threaded torsion characteristics measurement apparatus of thread joined structure mechanical characteristic.
Brief description of the drawings
Accompanying drawing 1 is schematic structural view of the invention；
In figure：1st, hand passes wheel 2, pull bar 3, loading spanner 4, nut 5, loading side cover plate 6, sleeve 7, pulling force
Sensor 8, briquetting 9, spring 10, screw thread side cover plate 11, experiment nut 12, experiment bolt 13, torque wrench 14, bearing
15th, link up with.
Specific embodiment
As shown in drawings, screw thread torsion characteristics measurement apparatus include specific embodiment of the invention：Axially loaded mechanism, branch
Support structure, measured screw thread are to, torque wrench 13；With measured screw thread to being connected, the other end passes through for axially loaded mechanism one end
It is engaged and is radially positioned in supporting construction；Measured screw thread by bolt to being installed on the support structure；Torque wrench 13
It is sleeved on the bolt of measured screw thread pair；
Supporting construction includes：Bearing 14, loading side cover plate 5, sleeve 6, briquetting 8, screw thread side cover plate 10；Sleeve 6 is by pressure
Block 8 is installed on bearing 14；Loading side cover plate 5 and screw thread side cover plate 10 are positioned on sleeve 6 by bolt；
Axially loaded mechanism includes：Hand is wheel 1, pull bar 2, loading spanner 3, nut 4, pulling force sensor 7, spring 9, hook
15；Between spring 9 is installed on two hooks 15；The two ends of pulling force sensor 7 are connected by screw thread with hook 15 and pull bar 2 respectively；Draw
In through hole of the bar 2 loaded on loading side cover plate 5；Nut 4 is spun on the pull bar 2 in the outside of loading side cover plate 5 by screw thread；Loading
Spanner 3 is loaded on nut 4；Hand is fixed on wheel 1 on pull bar 2 by screw；
Measured screw thread is to including experiment nut 11 and experiment bolt 12；Experiment nut 11 is loaded on screw thread side cover by screw
The outside of plate 10, experiment bolt 12 is connected with experiment nut 11 by screw thread；The one end and hook 15 for testing bolt 12 connect
Connect, the other end is set with torque wrench 13.
The axial rigidity of spring 9 is between 100000~1000000N/m；
0~the 10000N of measurement range of pulling force sensor 7, exports 0~10V voltage signals, possesses by data collecting system
Carry out the function of tension measurement and analysis；
0~the 20N.m of measurement range of torque wrench 13, exports 0-10 voltage signals, and possess is carried out by data collecting system
Torque measurement and the function of analyzing；
During installation, sleeve 6 is fixed on base 14 by briquetting 8, screw thread side cover plate 10 is arranged on sleeve 6, will
Experiment nut 11 be arranged on experiment bolt 12 middle part, coupling hook 15, spring 9, pulling force sensor 7 and pull bar 2, then
By linking up with axial force loading component and experiment bolt connection, the above-mentioned part for assembling is placed on sleeve afterwards
It is interior, and be fixed on nut 11 is tested on screw thread side cover plate 10 by bolt, then loading side cover plate 5, the and of nut 4 are installed successively
Wheel 1 is finally installed loading spanner 3 and torque wrench 13 by hand.
The above, preferably specific embodiment only of the invention, but protection scope of the present invention is not limited to
This, all those familiar with the art in technical scope disclosed by the invention, technology according to the present invention scheme
And its design of the invention is subject to equivalent or change and all should be included within the scope of the present invention.
Claims (4)
1. a kind of screw thread torsion characteristics measurement apparatus, it is characterised in that described measurement apparatus include：Axially loaded mechanism, support
Structure, measured screw thread are to, torque wrench (13)；With measured screw thread to being connected, the other end passes through for axially loaded mechanism one end
It is engaged and is radially positioned in supporting construction；Measured screw thread by bolt to being installed on the support structure；Torque wrench
(13) it is sleeved on the bolt of measured screw thread pair；
Described supporting construction includes：Bearing (14), loading side cover plate (5), sleeve (6), briquetting (8), screw thread side cover plate (10)；
Sleeve (6) is installed on bearing (14) by briquetting (8)；Loading side cover plate (5) and screw thread side cover plate (10) are positioned by bolt
In on sleeve (6)；
Described axially loaded mechanism includes：Hand is wheel (1), pull bar (2), loading spanner (3), nut (4), pulling force sensor
(7), spring (9), hook (15)；Between spring (9) is installed on two hooks (15)；Pulling force sensor (7) two ends pass through spiral shell respectively
Line is connected with hook (15) and pull bar (2)；In through hole of the pull bar (2) loaded on loading side cover plate (5)；Nut (4) is revolved by screw thread
On the pull bar (2) on the outside of load side cover plate (5)；Loading spanner (3) is loaded on nut (4)；Hand is wheel (1) by screw
It is fixed on pull bar (2)；
Described measured screw thread is to including experiment nut (11) and experiment bolt (12)；Experiment nut (11) is loaded on by screw
The outside of screw thread side cover plate (10), experiment bolt (12) is connected with experiment nut (11) by screw thread；Experiment bolt (12)
One end with hook (15) be connected, the other end is set with torque wrench (13).
2. a kind of screw thread torsion characteristics measurement apparatus according to claim 1, it is characterised in that described spring 9 is axially just
Spend between 100000~1000000N/m.
3. a kind of screw thread torsion characteristics measurement apparatus according to claim 1, it is characterised in that described pulling force sensor 7
0~10000N of measurement range, exports 0~10V voltage signals, and possess carries out tension measurement with analysis by data collecting system
Function.
4. a kind of screw thread torsion characteristics measurement apparatus according to claim 1, it is characterised in that described torque wrench 13
0~20N.m of measurement range, exports 0-10 voltage signals, possesses the work(that torque measurement and analysis are carried out by data collecting system
Energy.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104072.4A CN106885647B (en) | 2017-02-24 | 2017-02-24 | Screw thread torsion characteristics measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710104072.4A CN106885647B (en) | 2017-02-24 | 2017-02-24 | Screw thread torsion characteristics measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106885647A true CN106885647A (en) | 2017-06-23 |
| CN106885647B CN106885647B (en) | 2019-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710104072.4A Active CN106885647B (en) | 2017-02-24 | 2017-02-24 | Screw thread torsion characteristics measuring device |
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| CN (1) | CN106885647B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314895A (en) * | 2017-07-05 | 2017-11-03 | 深圳市樊溪电子有限公司 | The rotation detection device and detection method of a kind of wind-powered electricity generation structure stud |
| CN110333021A (en) * | 2019-07-29 | 2019-10-15 | 上海御渡半导体科技有限公司 | The measuring device of motor mould group pulling force |
| CN113324698A (en) * | 2021-05-27 | 2021-08-31 | 河北省计量监督检测研究院廊坊分院 | Portable torque wrench online detection device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050022612A1 (en) * | 2000-01-24 | 2005-02-03 | Heerke Hoogenberg | Torsion sensor |
| CN2708290Y (en) * | 2004-05-28 | 2005-07-06 | 朱建忠 | Torsion testing machine for lamp screw-thread sealing gland |
| CN201013700Y (en) * | 2007-04-09 | 2008-01-30 | 谢智庆 | Spiral fastener capable of sensing torsion |
| CN102620626A (en) * | 2012-03-23 | 2012-08-01 | 常熟市平冶机械有限公司 | Rapid thread detector |
| CN103115707A (en) * | 2011-11-17 | 2013-05-22 | 李树国 | Testing device of torsion tool |
| CN103411721A (en) * | 2013-07-26 | 2013-11-27 | 太仓中博铁路紧固件有限公司 | Bolt torque detection device |
-
2017
- 2017-02-24 CN CN201710104072.4A patent/CN106885647B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20050022612A1 (en) * | 2000-01-24 | 2005-02-03 | Heerke Hoogenberg | Torsion sensor |
| CN2708290Y (en) * | 2004-05-28 | 2005-07-06 | 朱建忠 | Torsion testing machine for lamp screw-thread sealing gland |
| CN201013700Y (en) * | 2007-04-09 | 2008-01-30 | 谢智庆 | Spiral fastener capable of sensing torsion |
| CN103115707A (en) * | 2011-11-17 | 2013-05-22 | 李树国 | Testing device of torsion tool |
| CN102620626A (en) * | 2012-03-23 | 2012-08-01 | 常熟市平冶机械有限公司 | Rapid thread detector |
| CN103411721A (en) * | 2013-07-26 | 2013-11-27 | 太仓中博铁路紧固件有限公司 | Bolt torque detection device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107314895A (en) * | 2017-07-05 | 2017-11-03 | 深圳市樊溪电子有限公司 | The rotation detection device and detection method of a kind of wind-powered electricity generation structure stud |
| CN110333021A (en) * | 2019-07-29 | 2019-10-15 | 上海御渡半导体科技有限公司 | The measuring device of motor mould group pulling force |
| CN113324698A (en) * | 2021-05-27 | 2021-08-31 | 河北省计量监督检测研究院廊坊分院 | Portable torque wrench online detection device |
| CN113324698B (en) * | 2021-05-27 | 2022-04-29 | 河北省计量监督检测研究院廊坊分院 | Portable torque wrench online detection device |
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| Publication number | Publication date |
|---|---|
| CN106885647B (en) | 2019-10-29 |
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