CN106885647B - Screw thread torsion characteristics measuring device - Google Patents
Screw thread torsion characteristics measuring device Download PDFInfo
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- CN106885647B CN106885647B CN201710104072.4A CN201710104072A CN106885647B CN 106885647 B CN106885647 B CN 106885647B CN 201710104072 A CN201710104072 A CN 201710104072A CN 106885647 B CN106885647 B CN 106885647B
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- screw thread
- cover plate
- side cover
- nut
- loaded
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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 measuring device of the present invention is related to a kind of measuring device in mechanical connection field, specially a kind of for measuring the device of threaded connector torsion characteristics.Screw thread torsion characteristics measuring device includes: axially loaded mechanism, support construction, is measured screw thread to, torque wrench；To connection, the other end is radially positioned in support construction by being engaged for axially loaded mechanism one end and measured screw thread；Screw thread is measured to install on the support structure to by bolt；Torque wrench is sleeved on the bolt of measured screw thread pair.The present invention has many advantages, such as that mechanism is simple, simple processing, easy to use, data are accurate, belongs to the Novel threaded torsion characteristics measuring device for studying thread joined structure mechanical characteristic.
Description
Technical field
Screw thread torsion characteristics measuring device of the present invention is related to a kind of measuring device in mechanical connection field, specifically
To be a kind of for measuring the device of threaded connector torsion characteristics.
Background technique
Screw connection structure is simple, convenient for disassembly and assembly, and type multiplicity, is most widely used connection type in Automatic manual transmission.Tool
Body is applied 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
It applies and the structural steelworks projects such as one off houses.
In engineering goods assembly, threaded fastener assembling quality is to guarantee the basis of mechanical quality and normal operation.Mesh
Preceding practical method most economical in the assembly process is to realize the control of axial pre tightening force indirectly by control torque, also referred to as
Torque Control method.But Torque Control method is usually to pass through to provide one under certain condition (the common coarse thread of such as steel, unlubricated)
Torque coefficient average value estimates pretightning force, thus precision is not high, wants needing the occasion of strict control pretightning force to be difficult to meet
It asks.
Thread joined structure guarantees that the key of its reliability is the conjunction of the reasonable selection and pretightning force of threaded fastener
Reason control.However, since there is also deficiencies in terms of the selection of threaded fastener and the control of pretightning force for the country.Such as pretightning force point
Cloth scattered error is excessive, for the positive connection for guaranteeing screw thread, would generally select bigger safety coefficient in design, so,
Although not will lead to overload to destroy, threaded fastener model pretightning force that is very big and being on active service 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.
Screw thread torsion characteristics measure dedicated experimental provision at present and method has that structure is complicated, inconvenient for use, function
The problems such as single, it is unfavorable for that careful research screw thread optimum preload, assembly method, stress vibration frequency and loosening etc. are key to ask
Topic.Therefore there is an urgent need to design a kind of novel special measurement equipment, the torsion characteristics of screw thread position is measured, reliable spiral shell is obtained
Line connects torsion characteristics data, convenient for being threadedly coupled the fining research of critical issue, and then meets required precision for determination
Pretightening technology process provides scientific basis.
For it is above-mentioned the problems of in the prior art, a kind of novel screw thread torsion characteristics of researching and designing measure dress
It sets, so that it is very necessary for overcoming the problems of in the prior art.
Summary of the invention
In view of it is above-mentioned the problems of in the prior art, the purpose of the present invention is a kind of novel screw thread torsions of researching and designing
Force characteristic measuring device testing stand.To solve, screw thread torsion characteristics measuring study experimental bench lacks and existing experimental provision exists
Structure, function, practicability etc. there are the problem of.
The technical solution of the invention is as follows is achieved:
A kind of screw thread torsion characteristics measuring device of the present invention, structure include: axially loaded mechanism, support knot
Structure is measured screw thread to, torque wrench；To connection, the other end is matched by contact for axially loaded mechanism one end and measured screw thread
Conjunction is radially positioned in support construction；Screw thread is measured to install on the support structure to by bolt；Torque wrench be sleeved on by
On the bolt for measuring screw thread pair；
Support construction of the present invention includes: support, load side cover plate, sleeve, briquetting, screw thread side cover plate；Sleeve is logical
Briquetting is crossed to be installed on support；Load side cover plate and screw thread side cover plate are positioned on sleeve by bolt；
Axially loaded mechanism of the present invention includes: hand handle wheel, pull rod, load spanner, nut, tension sensor, bullet
Spring, hook；Spring is installed between two hooks；Tension sensor both ends pass through screw thread respectively and are connected with hook and pull rod；Pull rod
In through-hole loaded on load side cover plate；Nut is spun on the pull rod being located on the outside of load side cover plate by screw thread；Load spanner dress
In on nut；Hand handle wheel is fixed on pull rod by screw；
Measured screw thread of the present invention is to including test nut and test bolt；It tests nut and spiral shell is loaded on by screw
The outside of line side cover plate, test bolt are connect with test nut by being threadedly engaged；The one end and hook for testing bolt connect, separately
One end is set with torque wrench.
Spring axial rigidity of the present invention is between 100000~1000000N/m；
0~10000N of tension sensor measurement range of the present invention exports 0~10V voltage signal, has and pass through 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 signal, has and adopted by data
The function of collecting system progress torque measurement and analysis.
The principle of the present invention and function are:
The principle of the invention holds by hand handle-bar grip when being progress screw thread torsion characteristics measurement and generates twist motion to prevent pull rod,
So that pull rod can only move in the circumferential direction, the axial position of pull rod is adjusted by load spanner rotating nuts, pull rod pulls spring to become
Shape passes through tension sensor and real-time measurement axial tension.Under given axial tension, torque wrench is slowly pulled with hand, is turned round
The surveyed torque value meeting of square spanner first slowly increase, rear unexpected slightly bounce, while torque wrench generation is significant circumferentially displaced, at this time
The torque of acquisition is the threaded pre-tightening torque value under the axial tension.By replacement test bolt and test 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:
1, use of the invention, solving screw thread torsion, to measure structure present in dedicated experimental provision and method multiple
The problems such as miscellaneous, disturbing factor is more, and measurement structure accuracy is not high；
2, the present invention can carry out different lubricating conditions, different thread surface roughness, different helicitic texture parameters and material
Lower screw thread torsion characteristics test, relationship and threaded connector design provide between research nut screw-down torque and axial pressing force
Foundation and support belong to the novel experiment device of tailored version.
The present invention has many advantages, such as that mechanism is simple, simple processing, easy to use, data are accurate, therefore belongs to a kind of for grinding
Study carefully the Novel threaded torsion characteristics measuring device of thread joined structure mechanical characteristic.
Detailed description of the invention
Attached drawing 1 is schematic structural view of the invention；
In figure: 1, hand handle wheel 2, pull rod 3, load spanner 4, nut 5, load side cover plate 6, sleeve 7, pulling force pass
Sensor 8, briquetting 9, spring 10, screw thread side cover plate 11, test nut 12, test bolt 13, torque wrench 14, support
15, it links up with.
Specific embodiment
Specific embodiments of the present invention are as shown in the picture, and screw thread torsion characteristics measuring device includes: axially loaded mechanism, branch
Support structure is measured screw thread to, torque wrench 13；To connection, the other end passes through for axially loaded mechanism one end and measured screw thread
It is engaged and is radially positioned in support construction；Screw thread is measured to install on the support structure to by bolt；Torque wrench 13
It is sleeved on the bolt of measured screw thread pair；
Support construction includes: support 14, load side cover plate 5, sleeve 6, briquetting 8, screw thread side cover plate 10；Sleeve 6 passes through pressure
Block 8 is installed on support 14；Load side cover plate 5 and screw thread side cover plate 10 are positioned on sleeve 6 by bolt；
Axially loaded mechanism includes: hand handle wheel 1, pull rod 2, load spanner 3, nut 4, tension sensor 7, spring 9, hook
15；Spring 9 is installed between two hooks 15；7 both ends of tension sensor pass through screw thread respectively and are connected with hook 15 and pull rod 2；It draws
In through-hole of the bar 2 loaded on load side cover plate 5；Nut 4 is spun on the pull rod 2 for being located at 5 outside of load side cover plate by screw thread；Load
Spanner 3 is loaded on nut 4；Hand handle wheel 1 is fixed on pull rod 2 by screw；
Screw thread is measured to including test nut 11 and test bolt 12；It tests nut 11 and screw thread side cover is loaded on by screw
The outside of plate 10, test bolt 12 are connect with test nut 11 by being threadedly engaged；The one end and hook 15 for testing bolt 12 connect
It connects, the other end is set with torque wrench 13.
9 axial rigidity of spring is between 100000~1000000N/m；
7 0~10000N of measurement range of tension sensor exports 0~10V voltage signal, has and pass through data collection system
Carry out the function of tension measurement and analysis；
13 0~20N.m of measurement range of torque wrench exports 0-10 voltage signal, has and carried out by data collection system
The function of torque measurement and analysis；
When installation, screw thread side cover plate 10 is mounted on sleeve 6 by sleeve 6 on base 14 by the way that briquetting 8 is fixed, it will
Test nut 11 is mounted on the intermediate position of test bolt 12, and 15, spring 9, tension sensor 7 and pull rod 2 are linked up in connection, then
Axial force loading component and test are bolted by linking up with, above-mentioned assembled component is placed on sleeve later
It is interior, and be fixed on screw thread side cover plate 10 by bolt by nut 11 is tested, then successively installation loads side cover plate 5,4 and of nut
Hand handle wheel 1, finally installation loads spanner 3 and torque wrench 13.
The above, preferable specific embodiment only of the invention, but protection scope of the present invention is not limited to
This, all those familiar with the art are in technical scope disclosed by the invention, according to the technique and scheme of the present invention
And its design of the invention is subject to equivalent substitution or change and is covered by the protection scope of the present invention.
Claims (2)
1. a kind of screw thread torsion characteristics measuring device, comprising: be measured screw thread to and torque wrench (13)；Screw thread is measured to packet
Include test nut (11) and test bolt (12)；After testing nut (11) and test bolt (12) threaded connection, bolt is tested
(12) one end is connected with torque wrench (13)；
It is characterized by: the measuring device further include: axially loaded mechanism and support construction；Axially being clipped in mechanism passes through spiral shell
Line is loaded on one end of support construction；And it is connected with the measured screw thread for being fixed on the support construction other end；
The support construction includes: support (14), load side cover plate (5), sleeve (6), briquetting (8), screw thread side cover plate (10)；
Sleeve (6) is installed on support (14) by briquetting (8)；Side cover plate (5) and screw thread side cover plate (10) is loaded to position by bolt
In on sleeve (6)；Test the outside that nut (11) are loaded on screw thread side cover plate (10) by screw；
The axially loaded mechanism includes: hand handle wheel (1), pull rod (2), load spanner (3), nut (4), tension sensor
(7), spring (9), hook (15)；9 axial rigidity of spring is installed on two hooks (15) between 100000~1000000N/m
Between；7 0~10000N of measurement range of tension sensor exports 0~10V voltage signal, has and drawn by data collection system
The function of power measurement and analysis, tension sensor (7) both ends pass through screw thread respectively and are connected with hook (15) and pull rod (2)；Pull rod
(2) in the through-hole loaded on load side cover plate (5)；Nut (4) is spun on the pull rod being located on the outside of load side cover plate (5) by screw thread
(2) on；Spanner (3) are loaded loaded on nut (4)；Hand handle wheel (1) is fixed on pull rod (2) by screw；It tests bolt (12)
One end connect with hook (15).
2. a kind of screw thread torsion characteristics measuring device according to claim 1, it is characterised in that the torque wrench 13
0~20N.m of measurement range exports 0-10 voltage signal, has the function that torque measurement and analysis are carried out by data collection 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 |
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| Publication Number | Publication Date |
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| CN106885647A CN106885647A (en) | 2017-06-23 |
| CN106885647B true CN106885647B (en) | 2019-10-29 |
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| CN201710104072.4A Active CN106885647B (en) | 2017-02-24 | 2017-02-24 | Screw thread torsion characteristics measuring device |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107314895B (en) * | 2017-07-05 | 2018-10-09 | 福州市长乐区三互信息科技有限公司 | A kind of rotation detection device and detection method 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 |
| 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 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1014153C2 (en) * | 2000-01-24 | 2001-07-25 | Hamapro Holding B V | Torque sensor. |
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2017
- 2017-02-24 CN CN201710104072.4A patent/CN106885647B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN106885647A (en) | 2017-06-23 |
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