JPS6060525A - Measuring device for torque coefficient - Google Patents
Measuring device for torque coefficientInfo
- Publication number
- JPS6060525A JPS6060525A JP16990083A JP16990083A JPS6060525A JP S6060525 A JPS6060525 A JP S6060525A JP 16990083 A JP16990083 A JP 16990083A JP 16990083 A JP16990083 A JP 16990083A JP S6060525 A JPS6060525 A JP S6060525A
- Authority
- JP
- Japan
- Prior art keywords
- torque
- axial force
- detector
- bolt
- torque coefficient
- Prior art date
- 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.)
- Pending
Links
- 238000001514 detection method Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 4
- 235000016496 Panda oleosa Nutrition 0.000 description 1
- 240000000220 Panda oleosa Species 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はボルトのトルク係数を測定するためのトルク係
数測定装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a torque coefficient measuring device for measuring the torque coefficient of a bolt.
各程機器等において締結部材としてボルトを用いる場合
、適正な軸力を得るにはトルク係数との関連で適正な締
付トルクをめ、この締付トルクでがルトを締付けるよう
にする必要がある。締付トルクＴｆと軸力Ｆｆの関係は
、ねじの呼び径をｄとすると一般に
Ｔｆ ＝ Ｋ −Ｆｆ −ｄ °・（１）で表わされ、
トルク係数にの大きさによって締付トルクＴｆが変動す
ることが知られている。When using bolts as fastening members in various equipment, in order to obtain the appropriate axial force, it is necessary to determine the appropriate tightening torque in relation to the torque coefficient, and to tighten the bolt with this tightening torque. . The relationship between tightening torque Tf and axial force Ff is generally expressed as Tf = K - Ff - d ° (1), where d is the nominal diameter of the screw.
It is known that the tightening torque Tf varies depending on the magnitude of the torque coefficient.
上記トルク係数には、ねじ山接触面の摩擦係数、日？ル
ト頭部またはナツトの座面と被締付物との接触面の摩擦
係数などによって変化し、がルトごとにかなシのバラツ
キがおる。従って適正な締付トルクを得るためには実際
のボルトごとにトルク係数をめておき、その値の大小に
よってボルトを分類しておくことが望まれる。The above torque coefficient includes the friction coefficient of the thread contact surface, day? It varies depending on the friction coefficient of the contact surface between the bolt head or nut seat and the object to be tightened, and there is variation in the kana from bolt to bolt. Therefore, in order to obtain an appropriate tightening torque, it is desirable to record a torque coefficient for each actual bolt and to classify the bolts according to the magnitude of this value.
従来、この種の目的で用いられる機器としては、例えば
第１図に例示したような荷重検出器ａがある。すなわち
、被試験ポル）Ａとめねじ部材Ｂ（図示例ではナツト）
との間に、例えば油筒と圧力計とからなる圧力変換器す
を設け、めねじ部材Ｂをトルクレンチによって所定のト
ルクでポル）Ａにねじ込む。そして荷重検出器ａで検出
された発生軸力とトルクレンチの読みとから、前記（１
）式にもとづいてトルク係数Ｋをめるものでちる。Conventionally, as a device used for this kind of purpose, there is a load detector a as illustrated in FIG. 1, for example. That is, the tested pole) A and the female threaded member B (nut in the illustrated example)
A pressure transducer consisting of, for example, an oil cylinder and a pressure gauge is provided between the two, and the female threaded member B is screwed into the port A with a predetermined torque using a torque wrench. Then, from the generated axial force detected by load detector a and the reading of the torque wrench, the above (1)
) is calculated by calculating the torque coefficient K based on the formula.
従って従来は、ボルトごとに検査員が発生軸力ヲ読み、
かつトルクレンチの値を読んで計算を行なっているため
、測定に多くの時間と労力を必要とし、また場合によっ
ては読取シ誤差を生じたシ、あるいは計算違いを生じる
ことがらシ、高精度は望めないものであった。Therefore, in the past, inspectors read the axial force generated for each bolt.
In addition, since calculations are made by reading the torque wrench values, it takes a lot of time and effort to measure, and in some cases, reading errors or calculation errors may occur, so high accuracy is not possible. It was something I couldn't hope for.
本発明は上記事情にもとづきなされたものでその目的と
するところは、トルク係数を高精度に、かつ短時間で測
定することのできるトルク係数測定装置を提供すること
にある。The present invention was made based on the above circumstances, and an object of the present invention is to provide a torque coefficient measuring device that can measure a torque coefficient with high precision and in a short time.
すなわち本発明は、被試験ボルトおよびこれに螺合され
るめねじ部材のうちいずれか一方を支持する第１部材と
、他方を支持する第２部材と、これら第１部材および第
２部材の間に設けられて上記めねじ部材を被試験ボルト
に相対的にねじ込んだときの発生軸力を検出する軸力検
出器と、上記めねじ部材または被試験ボルトに取付けら
れてこれらを互いにねじ込んだときに要したトルクを検
出す′るトルク検出器と、上記軸力検出器とトルク検出
器による検出値を電気的に力する演算・表示器とを具備
したトルク係数測定装置である。In other words, the present invention provides a first member that supports one of the bolt under test and a female threaded member screwed thereon, a second member that supports the other, and a structure between the first member and the second member. an axial force detector installed on the female threaded member or the bolt under test to detect the axial force generated when the female threaded member is screwed relative to the bolt under test; This is a torque coefficient measuring device equipped with a torque detector that detects the torque required for the rotation, and an arithmetic/display device that electrically outputs the values detected by the axial force detector and the torque detector.
上記構成の本発明は、被試験ボルトとめねじ部材を互い
に締付けたときの発生軸力とその時のトルクが電気信号
として演算・表示器に同時に入力され、電気的に瞬時に
処理されてその結果が表示される。従って測定をきわめ
て短時間に行なえるとともに、軸力やトルクを検査員が
読取る必要がなく、シかも人手による計算も不用である
から測定精度が高い。In the present invention having the above configuration, the axial force generated when the bolt under test and the female threaded member are tightened together and the torque at that time are simultaneously input to the calculation/display unit as electrical signals, and are instantaneously processed electrically to display the results. Is displayed. Therefore, the measurement can be carried out in a very short time, and the measurement accuracy is high because there is no need for an inspector to read the axial force or torque, and there is no need for manual calculations.
以下に本発明の一実施例について第２図を参照して説明
する。図中Ａは被試験ボルト、Ｂはこのポル）Ａに螺合
されるめねじ部栃の一例としてのナツト、Ｃは座金でお
る。そして上ａ己被試験はル）Ａは第１部材１に支持さ
ｈるようになっている。この第１部材ｌはポル１・Ａを
締付けても実質的に変形を生じないように強度の高イモ
ノであることが望ましく、ソの中心部分ニはボルト挿通
孔２と回り止め凹部３が形成されている。この回シ止め
凹部３は、被試験ｉｒｉレトＡの頭部ＡＩ と相似した
六角形相ニ、または矩形状をなし、ボルト頭部Ａ１に直
接嵌合するか、またはボルト頭部Ａ１との間の隙間を埋
めるだめのアタッチメント（図示せず）を介してｒｙｒ
レト頭部Ａ１と嵌合し、ｙｌ”／し）Ａの回り止めをな
すようになっている。An embodiment of the present invention will be described below with reference to FIG. In the figure, A is a bolt to be tested, B is a nut as an example of a female threaded part screwed onto A, and C is a washer. The test piece A is supported by the first member 1. It is desirable that this first member 1 is made of a high-strength material so that it will not be substantially deformed even when the poles 1 and A are tightened, and a bolt insertion hole 2 and a rotation prevention recess 3 are formed in the center part has been done. This rotation stopper recess 3 has a hexagonal shape similar to the head AI of the test subject A, or a rectangular shape, and either fits directly into the bolt head A1 or is connected to the bolt head A1. ryr through a gap-filling attachment (not shown).
It is fitted with the rear head A1 to prevent rotation of the rotary head A1.
そして上記第１部材１と離間対向して第２部材５が設け
られている。この第２部材５はナツトＢ″４ｃ支持する
ものであって、ナツトＢを締付けても実質的に変形を生
じないことが望ましい。A second member 5 is provided so as to face and be spaced apart from the first member 1. This second member 5 supports the nut B''4c, and desirably does not substantially deform even when the nut B is tightened.
この第２部材５の中心部には上記Ｈζル）Ａを挿通−Ｆ
六言通石６カユ形ｂｙされている。この第２部材５に対
してナツトＢは自由に回転し得るようになっている。Insert the above Hζru)A into the center of this second member 5.
Rokugondori stone is shaped like 6 kayu. The nut B can freely rotate relative to the second member 5.
また、第１部材１と第２部材５との間に軸力検出器７が
設けられている。この軸力検出器７は、ナツトＢをボル
トＡにねじ込んだときに生じる軸線方向の力（軸力）を
検出し、その値を電力信号として出力するものである。Further, an axial force detector 7 is provided between the first member 1 and the second member 5. This axial force detector 7 detects the force in the axial direction (axial force) generated when the nut B is screwed into the bolt A, and outputs the value as an electric power signal.
この軸力検出器７としては、例えばロードセルのような
荷重検出器、ちるいは液体を封入した密封容器に圧力計
を設けたものなどを採用でき、例えば第１部材１にがル
トなどを用いて固定する。As this axial force detector 7, for example, a load detector such as a load cell, or a pressure gauge provided in a sealed container filled with liquid or the like can be adopted. and fix it.
また、上記ナラ）Ｂにトルク検出器８が着脱自在に取付
けられるようになっている。このトルク検出器８は、ナ
ラ）Ｂに嵌合させるためのソケット部９と、このソケッ
ト部９を図示しないレンチ等の工具で回転させるための
非円形状のつかみ部１０と、上記ソケ、）部９を回転さ
せるのに要したトルクを電気信号として取出すトルク検
出器本体部１１とを備えて構成されている。Further, a torque detector 8 is detachably attached to the above-mentioned oak. This torque detector 8 includes a socket part 9 for fitting into the oak (oak) B, a non-circular grip part 10 for rotating this socket part 9 with a tool such as a wrench (not shown), and the socket (). The torque detector body 11 extracts the torque required to rotate the portion 9 as an electric signal.
上記ソケット部９にはす、 トＢを嵌合させるためのフ
ケ１．ト孔９ａが形成されておシ、好ましくはナラ）Ｈ
の大きさに合わせて程々の寸法のものを付は替えること
ができるようになっている。A hook 1 for fitting the socket B into the socket part 9. Hole 9a is formed (preferably oak)
It is possible to change the size of the item depending on the size of the item.
そして上記トルク検出器８と軸力検Ｕ」器７に各々信号
線１５．１６を介して演算・表示器１７が接続されてい
る。この演算・表示器１７は、機能的には演算部１８と
表示部１９とからなる。上記演算部１８は、上記軸力検
出器７によって得られた軸力Ｆｆとトルク検出器８によ
って表わされる式でトルク係数Ｋを算出するようにプロ
グラミングされている。従って測定に当っては、ポル）
Ａの呼び径ｄを入力しておくことが必要となる。そして
上記演算部１８で算出されたトルク係数には、表示部１
９にて例えばディジタル表示される。そして、例えばト
ルク係数の大きさに応じてトルク係数別分類を行なうな
どして、各ボルトのトルク係数を把握しておくことによ
シ、所望の軸力を得るだめの適正な締付トルクを知るこ
とができるものである。A calculation/display unit 17 is connected to the torque detector 8 and the axial force detector 7 via signal lines 15 and 16, respectively. This calculation/display unit 17 functionally consists of a calculation section 18 and a display section 19. The calculation unit 18 is programmed to calculate the torque coefficient K using the formula expressed by the axial force Ff obtained by the axial force detector 7 and the torque detector 8. Therefore, when measuring
It is necessary to input the nominal diameter d of A. The torque coefficient calculated by the calculation unit 18 is displayed on the display unit 1.
For example, it is displayed digitally at 9. By understanding the torque coefficient of each bolt, for example by classifying it by torque coefficient according to the magnitude of the torque coefficient, it is possible to determine the appropriate tightening torque to obtain the desired axial force. It is something that can be known.
上記構成の実施例装置は、ナラ）Ｂにソケット部９を被
せ、つかみ部１０をレンチ等の工具で回転させると、軸
力検出器７とトルク検出器８の出力が演算部１８に入力
される。そして軸力とトルクに基づく計算は電気的に瞬
時に行々われ、その演算結果が表示部１９に直接表示さ
れるため、トルク係数Ｋを簡単に知ることができる。In the embodiment device having the above configuration, when the socket part 9 is placed on the oak (B) and the grip part 10 is rotated with a tool such as a wrench, the outputs of the axial force detector 7 and the torque detector 8 are input to the calculation part 18. Ru. Calculations based on the axial force and torque are instantaneously performed electrically, and the calculation results are directly displayed on the display unit 19, so that the torque coefficient K can be easily known.
このように本実施例装置によれば、検査員が軸力やトル
ク等の中間データを読み取る必要が一切無く、シかも人
手による面倒な計算も不要であるから、測定金きわめて
迅速にかつ高精度で行なうことができる。また、測定の
自動化も可能である。In this way, according to the device of this embodiment, there is no need for the inspector to read intermediate data such as axial force and torque, and there is no need for troublesome manual calculations, so the measurement can be carried out extremely quickly and with high precision. It can be done with It is also possible to automate the measurement.
なお上記実施例ではポル）Ａを固定にし、ナラ）Ｂを回
転させるようになっているが、これとは逆にナツトを固
定しボルトを回転させるようにしても勿論差支えない。In the above embodiment, the bolt A is fixed and the bolt B is rotated, but of course it is also possible to fix the nut and rotate the bolt.
また、ナツト以外のめねじ部材を用いてもよい。また本
発明の要旨を逸脱しない範囲で第１部材や第２部材、軸
力検出器、トルク検出器、演算・表示器等の形状、構成
等の具体的態様を種々に変形して実施できることは言う
までもない。Further, a female threaded member other than a nut may be used. Furthermore, the shapes and configurations of the first member, the second member, the axial force detector, the torque detector, the arithmetic/indicator, etc. can be modified in various ways without departing from the gist of the present invention. Needless to say.
前記したように本発明によれば、がルトのトルク係数を
高精度に、かつ短時間で簡単に測定することができる。As described above, according to the present invention, the torque coefficient of the bolt can be easily measured with high precision and in a short time.
第１図は荷重検出器の一例を示す概略断面図、第２図は
本発明の一実施例を示すトルク係数測定装置の略断面図
である。
１・・・第１部材、５・・・第２部材、７・・・軸力検
出器、８・・・トルク検出器、１７・・・演算・表示器
、Ａ・・・被試験ボルト、Ｂ・・・ナツト（めねじ部材
）。FIG. 1 is a schematic sectional view showing an example of a load detector, and FIG. 2 is a schematic sectional view of a torque coefficient measuring device showing an embodiment of the present invention. DESCRIPTION OF SYMBOLS 1... First member, 5... Second member, 7... Axial force detector, 8... Torque detector, 17... Calculation/display device, A... Bolt under test, B...Nut (female thread member).
Claims (1)
ちいずれか一方を支持する第１部材と、他方を支持する
第２部材と、これら第１部材および第２部材の間に設け
られて上記めねじ部材を被試験ボルトに相対的にねじ込
んだときの発生軸力を検出する軸力検出器と、上記めね
じ部材または被試験ボルトに取付けられてこれらを互い
Ｋねじ込んだときに要したトルクを検出するトルク検出
器と、上記軸力検出器およびトルク検出器の検出値を電
気的に入力し、所定の計算式に基づいてトルク係数を計
算しその結果を表示する演算・表示器とを具備したこと
を特徴とするトルク係数測定装置。Tested i? A first member that supports one of the bolt and the female threaded member screwed thereon, a second member that supports the other, and the female threaded member that is provided between the first member and the second member. An axial force detector that detects the axial force generated when the screw is screwed in relative to the bolt under test, and an axial force detector that is attached to the female thread member or the bolt under test and detects the torque required when they are screwed into each other. Equipped with a torque detector and an arithmetic/display device that electrically inputs the detected values of the axial force detector and torque detector, calculates a torque coefficient based on a predetermined calculation formula, and displays the result. A torque coefficient measuring device characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16990083A JPS6060525A (en) | 1983-09-14 | 1983-09-14 | Measuring device for torque coefficient |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16990083A JPS6060525A (en) | 1983-09-14 | 1983-09-14 | Measuring device for torque coefficient |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6060525A true JPS6060525A (en) | 1985-04-08 |
Family
ID=15895047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16990083A Pending JPS6060525A (en) | 1983-09-14 | 1983-09-14 | Measuring device for torque coefficient |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6060525A (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02262968A (en) * | 1988-12-02 | 1990-10-25 | Cdi Consolidated Devices Inc | Torque wrench and device for regulating or correcting torque wrench |
| WO2001059417A1 (en) * | 2000-02-07 | 2001-08-16 | K.K. Holding Ag | Test device for determining the friction and prestress values of screwed connections |
| WO2002018895A1 (en) * | 1999-01-21 | 2002-03-07 | Fine Instrument Corporation | Torque tester |
| KR100947593B1 (en) | 2008-05-30 | 2010-03-15 | 자동차부품연구원 | Torque and Axial Force Measuring Device for Common Rail Fuel Supply Pipe |
| FR2940436A1 (en) * | 2008-12-19 | 2010-06-25 | Ct Tech Des Ind Mecaniques | Calibration device for constraint measuring apparatus of screw/nut system, has guiding unit authorizing rotation of stop piece when driving unit applies torque on head, where driving unit is formed by groove, lever arm and standard weights |
| CN101804615A (en) * | 2010-04-04 | 2010-08-18 | 苏州宝骅机械技术有限公司 | Bolt load and torque indicator |
| CN101886961A (en) * | 2010-07-26 | 2010-11-17 | 西安理工大学 | Full load static characteristic test device and test method of bolt joint surface unit |
| CN101915663A (en) * | 2010-07-29 | 2010-12-15 | 西安理工大学 | Unit area joint surface tangential dynamic and static characteristics test device |
| FR2948191A1 (en) * | 2009-07-16 | 2011-01-21 | Peugeot Citroen Automobiles Sa | Failure torque determining method for screw i.e. sheet metal screw, involves screwing screw in threading part until head of screw is stopped against blocks, and determining failure tightening torque of screw |
| WO2011061494A1 (en) * | 2009-11-17 | 2011-05-26 | Crane Electronics Ltd | Variable torque rate test joint |
| US8418569B2 (en) | 2007-02-13 | 2013-04-16 | Crane Electronics, Ltd. | Variable torque-rate test joint |
| US8490500B2 (en) | 2010-11-16 | 2013-07-23 | Caterpillar Inc. | Torque coefficient measuring device |
| US8720283B2 (en) | 2010-01-25 | 2014-05-13 | Crane Electronics Ltd. | Variable torque-rate test joint |
| FR3001801A1 (en) * | 2013-02-07 | 2014-08-08 | Snecma | Device for simultaneously measuring axial force exerted by screw and screwing torque to characterize critical screw assemblies in aeronautical or space field, has bearing allowing relative rotation of force sensor relative to support |
| CN104713674A (en) * | 2015-02-09 | 2015-06-17 | 大连理工大学 | Device for detecting axial tightening force of hexagonal head bolts |
| CN105300683A (en) * | 2015-12-01 | 2016-02-03 | 中国船舶重工集团公司第七0四研究所 | Bolt torque coefficient measurement testing stand |
| WO2019189291A1 (en) * | 2018-03-28 | 2019-10-03 | 株式会社バルカー | Method for managing seal formation, device for managing seal formation, program for managing seal formation, and system for managing seal formation |
| JP2021532351A (en) * | 2018-07-25 | 2021-11-25 | 北京理工大学 | Measuring device for torque coefficient sampling and method of constructing torque coefficient model |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5629766A (en) * | 1979-08-15 | 1981-03-25 | Omron Tateisi Electronics Co | Function mode designating system for electronic cash register |
-
1983
- 1983-09-14 JP JP16990083A patent/JPS6060525A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5629766A (en) * | 1979-08-15 | 1981-03-25 | Omron Tateisi Electronics Co | Function mode designating system for electronic cash register |
Cited By (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02262968A (en) * | 1988-12-02 | 1990-10-25 | Cdi Consolidated Devices Inc | Torque wrench and device for regulating or correcting torque wrench |
| WO2002018895A1 (en) * | 1999-01-21 | 2002-03-07 | Fine Instrument Corporation | Torque tester |
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| TWI796460B (en) * | 2018-03-28 | 2023-03-21 | 日商華爾卡股份有限公司 | Sealing construction management method, sealing construction management device, sealing construction management program, sealing construction management system |
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