KR980003507A - How to measure bolt force - Google Patents

How to measure bolt force Download PDF

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Publication number
KR980003507A
KR980003507A KR1019960020116A KR19960020116A KR980003507A KR 980003507 A KR980003507 A KR 980003507A KR 1019960020116 A KR1019960020116 A KR 1019960020116A KR 19960020116 A KR19960020116 A KR 19960020116A KR 980003507 A KR980003507 A KR 980003507A
Authority
KR
South Korea
Prior art keywords
bolt
strain gauge
axial force
shank portion
effect
Prior art date
Application number
KR1019960020116A
Other languages
Korean (ko)
Inventor
장훈
Original Assignee
박병재
현대자동차 주식회사
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 박병재, 현대자동차 주식회사 filed Critical 박병재
Priority to KR1019960020116A priority Critical patent/KR980003507A/en
Publication of KR980003507A publication Critical patent/KR980003507A/en

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  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

본 발명은 피 체력룸을 적정한 수준으로 체결할 수 있는 볼트의 축력을 측정하기 위한 것으로서, 볼트의 생크 부위에 180°위상으로 2축용 스트레인 게이지를 부착하여 폴 브리지 타입 휘스톤 브리지를 형성하고, 그 기전력을 측정하여 볼트의 축력을 산출할 수 있도록 함으로써, 볼트의 로컬 밴딩 효과 및 온도 영향에 따른 측정 오류가 방지될 수 있어 보다 정확한 축력 측정이 가능함과 동시에 엔진과 같은 열적 변화가 심한 측정물에서도 그 온도 영향이 보상되어 피측정물의 작동중에도 정확한 축력 측정이 가능한 이점이 있다.The present invention is to measure the axial force of the bolt that can tighten the fitness room to an appropriate level, to form a pole bridge type Wheatstone bridge by attaching a two-axis strain gauge at 180 ° phase to the shank portion of the bolt, By measuring the electromotive force, it is possible to calculate the axial force of the bolt, which prevents the measurement error caused by the local banding effect of the bolt and the temperature effect, which enables more accurate axial force measurement, and it is also possible to measure even the severe thermal changes such as the engine. The effect of temperature is compensated for, allowing accurate axial force measurement during the operation of the workpiece.

Description

볼트 축력 측정 방법How to measure bolt force

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제2도는 종래 기술에 의한 볼트 축력 측정 방법의 다른 예.2 is another example of a bolt axial force measurement method according to the prior art.

제3도는 본 발명에 따른 볼트 축력 측정을 위해 가공된 볼트를 도시한 도면.3 shows a machined bolt for measuring bolt axial force according to the invention.

제4도는 제3도와 같이 가공된 볼트에 스트레인 게이지를 설치한 도면.4 is a diagram in which a strain gauge is installed on a bolt machined as in FIG.

제5도는 제4도의 스트레인 게이지 사이의 결선 상태를 도시한 결선도.5 is a connection diagram showing the connection state between the strain gauges of FIG.

제6도는 본 발명에 따른 전체 구성도이다.6 is an overall configuration diagram according to the present invention.

Claims (2)

볼트 생크 부위에 볼트 축방향에 수직한 관통홀을 형성하고, 볼트 헤드로부터 상기 관통홀과 연결될 수 있도록 볼트 축방향으로 연결홈을 형성하는 볼트 준비단계와; 볼트 생크부180°위상으로 2개의 스트레인 게이지를 부착하고, 상기 스트레인 게이지의 와이어를 상기 관통홀과 연결 홈을 통해 외부로 인출하여 스트레인 게이지 측정장비에 연결하는 스트레인 게이지 설치 단계와; 상기와 같이 준비된 볼트를 체결하여 상기 스트레인 게이지 측정장비로 볼트 축력을 측정하는 단계로 구성된 것을 특징으로 하는 볼트 축력 측정 방법.A bolt preparation step of forming a through hole perpendicular to the bolt axial direction in the bolt shank portion and forming a connection groove in the bolt axial direction so as to be connected to the through hole from the bolt head; A strain gauge installation step of attaching two strain gauges to a bolt shank portion 180 ° phase, and drawing the strain gauge wires to the outside through the through holes and connecting grooves and connecting them to the strain gauge measuring equipment; The bolt axial force measurement method comprising the step of measuring the bolt axial force by the strain gauge measuring equipment by fastening the prepared bolt as described above. 제1항에 있어서, 상기 볼트 생크부에 부착하는 180°위상의 스트레인 게이지는 2축용 스트레인 게이지인 것을 특징으로 하는 볼트 축력 측정 방법.The method of claim 1, wherein the 180 ° phase strain gauge attached to the bolt shank portion is a biaxial strain gauge. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019960020116A 1996-06-05 1996-06-05 How to measure bolt force KR980003507A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019960020116A KR980003507A (en) 1996-06-05 1996-06-05 How to measure bolt force

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019960020116A KR980003507A (en) 1996-06-05 1996-06-05 How to measure bolt force

Publications (1)

Publication Number Publication Date
KR980003507A true KR980003507A (en) 1998-03-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019960020116A KR980003507A (en) 1996-06-05 1996-06-05 How to measure bolt force

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KR (1) KR980003507A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103592063A (en) * 2013-11-14 2014-02-19 中冶建筑研究总院有限公司 Method for testing pretension force of high-strength bolt in in-service state
KR20160140155A (en) * 2015-05-29 2016-12-07 한국교통대학교산학협력단 System and method for monitoring the stress of the parts
US11085840B2 (en) 2019-05-10 2021-08-10 Hyundai Motor Company Apparatus and method for measuring axial force of bolt

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103592063A (en) * 2013-11-14 2014-02-19 中冶建筑研究总院有限公司 Method for testing pretension force of high-strength bolt in in-service state
KR20160140155A (en) * 2015-05-29 2016-12-07 한국교통대학교산학협력단 System and method for monitoring the stress of the parts
US11085840B2 (en) 2019-05-10 2021-08-10 Hyundai Motor Company Apparatus and method for measuring axial force of bolt

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