FR3106634B1 - Nut comprising at least one strain gauge, bolt comprising at least one such nut and device for measuring a preload exerted by such a bolt - Google Patents

Nut comprising at least one strain gauge, bolt comprising at least one such nut and device for measuring a preload exerted by such a bolt Download PDF

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Publication number
FR3106634B1
FR3106634B1 FR2000879A FR2000879A FR3106634B1 FR 3106634 B1 FR3106634 B1 FR 3106634B1 FR 2000879 A FR2000879 A FR 2000879A FR 2000879 A FR2000879 A FR 2000879A FR 3106634 B1 FR3106634 B1 FR 3106634B1
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FR
France
Prior art keywords
nut
bolt
measuring
strain gauge
preload
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.)
Active
Application number
FR2000879A
Other languages
French (fr)
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FR3106634A1 (en
Inventor
Clément Chirol
Vincent Rafik
Julien Legrand
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Airbus Operations SAS
Original Assignee
Airbus Operations SAS
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 Airbus Operations SAS filed Critical Airbus Operations SAS
Priority to FR2000879A priority Critical patent/FR3106634B1/en
Publication of FR3106634A1 publication Critical patent/FR3106634A1/en
Application granted granted Critical
Publication of FR3106634B1 publication Critical patent/FR3106634B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B31/00—Screwed connections specially modified in view of tensile load; Break-bolts
    • F16B31/02—Screwed connections specially modified in view of tensile load; Break-bolts for indicating the attainment of a particular tensile load or limiting tensile load

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)

Abstract

Ecrou comprenant au moins une jauge de déformation, boulon comportant au moins un tel écrou et dispositif de mesure d’une précha r ge exercée par un tel boulon L'invention a pour objet un écrou (22) comprenant au moins une jauge de déformation (30) positionnée sur la surface périphérique extérieure (24) de l’écrou et configurée pour générer au moins un signal en fonction d’une déformation de l’écrou (22) selon une direction de mesure parallèle à l’axe (A22) de l’écrou (22). L’invention a également pour objet un boulon comportant au moins un tel écrou ainsi qu’un dispositif de mesure d’une précharge exercée par un tel boulon. L’invention permet d’ajuster précisément la précharge au moment du serrage du boulon. Figure 2Nut comprising at least one strain gauge, bolt comprising at least one such nut and device for measuring a precha r ge exerted by such a bolt The subject of the invention is a nut (22) comprising at least one strain gauge ( 30) positioned on the outer peripheral surface (24) of the nut and configured to generate at least one signal as a function of a deformation of the nut (22) along a direction of measurement parallel to the axis (A22) of the nut (22). The invention also relates to a bolt comprising at least one such nut as well as a device for measuring a preload exerted by such a bolt. The invention makes it possible to precisely adjust the preload when tightening the bolt. Figure 2

FR2000879A 2020-01-29 2020-01-29 Nut comprising at least one strain gauge, bolt comprising at least one such nut and device for measuring a preload exerted by such a bolt Active FR3106634B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR2000879A FR3106634B1 (en) 2020-01-29 2020-01-29 Nut comprising at least one strain gauge, bolt comprising at least one such nut and device for measuring a preload exerted by such a bolt

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR2000879 2020-01-29
FR2000879A FR3106634B1 (en) 2020-01-29 2020-01-29 Nut comprising at least one strain gauge, bolt comprising at least one such nut and device for measuring a preload exerted by such a bolt

Publications (2)

Publication Number Publication Date
FR3106634A1 FR3106634A1 (en) 2021-07-30
FR3106634B1 true FR3106634B1 (en) 2022-02-18

Family

ID=70154716

Family Applications (1)

Application Number Title Priority Date Filing Date
FR2000879A Active FR3106634B1 (en) 2020-01-29 2020-01-29 Nut comprising at least one strain gauge, bolt comprising at least one such nut and device for measuring a preload exerted by such a bolt

Country Status (1)

Country Link
FR (1) FR3106634B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20240218899A1 (en) * 2020-10-21 2024-07-04 Nord-Lock Switzerland Gmbh A device and method for determining amount of force application

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NO323064B1 (en) * 2003-06-13 2006-12-27 Bjorn Burmann Device for painting biasing force in a bolt-nut connection
US8683869B2 (en) * 2008-09-04 2014-04-01 The Boeing Company Monitoring fastener preload
JP2010053927A (en) * 2008-08-27 2010-03-11 Asahi Electric Works Ltd Fastening apparatus and system for detecting axial force thereof
JP6324405B2 (en) * 2013-11-22 2018-05-16 株式会社サンノハシ Bolt, nut and strain measurement system
EP3093641B1 (en) * 2015-05-11 2017-06-28 Siemens Aktiengesellschaft Method for determining the axial tensile force introduced into a component

Also Published As

Publication number Publication date
FR3106634A1 (en) 2021-07-30

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