DE2539345A1 - High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces - Google Patents

High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces

Info

Publication number
DE2539345A1
DE2539345A1 DE19752539345 DE2539345A DE2539345A1 DE 2539345 A1 DE2539345 A1 DE 2539345A1 DE 19752539345 DE19752539345 DE 19752539345 DE 2539345 A DE2539345 A DE 2539345A DE 2539345 A1 DE2539345 A1 DE 2539345A1
Authority
DE
Germany
Prior art keywords
ring
compression
measurement
gauges
force measurement
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.)
Withdrawn
Application number
DE19752539345
Other languages
German (de)
Inventor
Erich Brosa
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to DE19752539345 priority Critical patent/DE2539345A1/en
Publication of DE2539345A1 publication Critical patent/DE2539345A1/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L1/00—Measuring force or stress, in general
    • G01L1/20—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress
    • G01L1/22—Measuring force or stress, in general by measuring variations in ohmic resistance of solid materials or of electrically-conductive fluids; by making use of electrokinetic cells, i.e. liquid-containing cells wherein an electrical potential is produced or varied upon the application of stress using resistance strain gauges
    • G01L1/2206—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports
    • G01L1/2231—Special supports with preselected places to mount the resistance strain gauges; Mounting of supports the supports being disc- or ring-shaped, adapted for measuring a force along a single direction

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
  • Measurement Of Force In General (AREA)

Abstract

A force measurement ring for measurement of loading forces in helical springs, tie rods, etc., is developed for partic. small force measurement with relatively large ring diameters and small ring thicknesses. Sensitivity is increased by using larger openings (2) in the wall (1) of the ring. The provision of electrical cable connections is simplified and made safer by locating the cable socket in a wall opening and clamping it in place with the stabilising ring (6). Simultaneous measurement of compression and rotation forces is made possible by fixing corresp. straing gauges (7, 8) in suitable orientations on alternate wall sections.

Description

zusa'4zzmGS Kraftmeßring Die Erfindung betrifft einen Kraftmeßring der beispielsweise zur Messung der Belastungskräfte von Druckschrauben, Zugankern, Säulen, Spindeln, Wellen u.s.w. verwendet wird. Solche Xraftmeßringe, insbesondere für niedere Meßbereiche bei verhältnismäßig großem Durchmesser, sind nach der Hauptanmeldung P 23 57 484 bekannt.Zusa'4zzmGS force measuring ring The invention relates to a force measuring ring which is used, for example, to measure the loading forces of pressure screws, tie rods, Columns, spindles, shafts, etc. is used. Such Xraftmeßringe, in particular for lower measuring ranges with a relatively large diameter, are according to the main application P 23 57 484 known.

Der vorliegenden Erfindung liegt die Aufgabe zugrunde einen Kraftmeßring zu schaffen für besonders niedere Meßbereiche bei gleichzeitig großem Ringdurchmesser und kleiner Ringbreite.The present invention is based on the object of a force measuring ring To be created for particularly low measuring ranges with a large ring diameter at the same time and smaller ring width.

Nach der Offenlegungsschrift 23 57 484 werden Burchbrüche 11-12 in dem zur Messung dienenden Stauchzylinder, zum Zwecke der Anbringung von Dehnungsmeßstreifen (DMS) in der Mitte der zu stauchenden Zylinderwand, angeordnet. Einer Verkleinerung des Meßbereiches durch Verringerung der Wandstärke sind Grenzen gesetzt wegen der Gefahr des Ausknickens.According to laid-open specification 23 57 484, breakthroughs 11-12 in the compression cylinder used for measurement, for the purpose of attaching strain gauges (DMS) in the middle of the cylinder wall to be compressed. A reduction the measuring range by reducing the wall thickness are limited because of the Risk of buckling.

Anhand der ein vereinfachtes Ausführungsbeispiel des Kraftmeßringes darstellenden Figuren 1, 2 und 3 soll die Erfindung im folgenden näher beschrieben werden.Using a simplified embodiment of the force measuring ring Illustrative Figures 1, 2 and 3, the invention is to be described in more detail below will.

Der erfindungsgemäße Kraftmeßring zeichnet sich dadurch aus, daß man bei einem verhältnismäßig großen Ringdurchmesser und möglichst kleinem Meßbereich eine genügend große Stauchempfindlichkeit dadurch erhält, daß ein Teil der Wandung 1 mit großen Durchbrüchen 2 (Fenstern) versehen wird. Bei z.B. 50 % Durchbrüchen steigt die Meßempfindlichkeit bei gleicher Last um loo %. Eine weitere Aufgabe der Erfindung besteht darin, das Problem des elektrischen Kabelanschlußes zu vereinfachen und sicher zu machen.The force measuring ring according to the invention is characterized in that one with a relatively large ring diameter and the smallest possible measuring range a sufficiently high sensitivity to compression is obtained by the fact that part of the wall 1 is provided with large openings 2 (windows). With e.g. 50% breakthroughs the measuring sensitivity increases by 100% with the same load. Another task of the Invention is to simplify the problem of electrical cable connection and make sure.

Die Querstabilität der Kraftmeßringe und die Biegesteifigkeit der zu stauchenden Wandung bleibt im ausreichenden Maße erhalten.The transverse stability of the force washers and the rigidity of the The wall to be compressed is retained to a sufficient extent.

Die gleichen oder gleichwirkende Ausnehmungen 3 können auch in den Stegen 4 eingebracht werden.The same or equivalent recesses 3 can also be in the Web 4 are introduced.

Da die sehr dünnen Wandungen 1 für die Befestigung der Kabeldurchführung 5 u.U. zu schwach sind, wird die Kabeldurchfuhrung 5 in einem Durchbruch 2 plaziert und mit dem Stabilisierungsrlng 6 verschweißt, verschraubt oder anderweitig befestigt.Because the very thin walls 1 for attaching the cable bushing 5 may be too weak, the cable bushing 5 is placed in an opening 2 and welded, screwed or otherwise fastened to the stabilization ring 6.

Für gleichzeitiges Messen von Stauch-und von Verdrehkräften sind die entsprechenden DMS 7 und 8 abwechselnd auf den restlichen Wandteilen 1 befestigt.For simultaneous measurement of compression and torsional forces are the corresponding strain gauges 7 and 8 alternately attached to the remaining wall parts 1.

Claims (3)

ZusatzanmeldungAdditional registration Patentansprüche 1.Kraftmeßring nach Patent ...,,..,,, (Anmeldung P 23 57 484), dadurch gekennzeichnet, daß der zwischen den Stabilisierungsringen befindliche Stauchzylinder und gegebenenfalls die zwischen den Ausgleichsringen und den Stabilisierungsringen befindlichen Stege mit Ausnehmungen zur Erhöhung der spezifischen Meßempfindlichkeit versehen sind.Claims 1. Force measuring ring according to patent ... ,, .. ,,, (application P 23 57 484), characterized in that the one located between the stabilizing rings Upsetting cylinder and, if necessary, the one between the compensating rings and the stabilizing rings located webs with recesses to increase the specific measurement sensitivity are provided. 2 Kraftmeßring nach Anspruch 1, dadurch gekennzeichnet, daß der Träger einer Kabeldurchführung oder eines Steckeranschlußes in einem Durchbruch plaziert und an einem Stabilisierungsring angeschweißt oder geschraubt ist. 2 force measuring ring according to claim 1, characterized in that the carrier a cable bushing or a plug connection placed in an opening and is welded or screwed to a stabilizing ring. 3 Kraftmeßring nach Anspruch 2, dadurch gekennzeichnet, daß ein Teil der stehenbleibenden Wandungen mit DMS für Stauchmessungen und ein Teil für Verdrehmessungen bestückt ist, so daß gleichzeitig Kraft-und Verdrehmessungen durchgeführt werden können. 3 force measuring ring according to claim 2, characterized in that a part the remaining walls with strain gauges for compression measurements and a part for torsion measurements is equipped so that force and twist measurements are carried out at the same time can. LeerseiteBlank page
DE19752539345 1975-09-04 1975-09-04 High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces Withdrawn DE2539345A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19752539345 DE2539345A1 (en) 1975-09-04 1975-09-04 High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19752539345 DE2539345A1 (en) 1975-09-04 1975-09-04 High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces

Publications (1)

Publication Number Publication Date
DE2539345A1 true DE2539345A1 (en) 1977-03-10

Family

ID=5955579

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19752539345 Withdrawn DE2539345A1 (en) 1975-09-04 1975-09-04 High sensitivity force measurement ring - has large wall openings for increased sensitivity and gauges for simultaneous measurement of compression and rotation forces

Country Status (1)

Country Link
DE (1) DE2539345A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390327B (en) * 1988-08-18 1990-04-25 Brosa Erich Annular compression-force measuring cell
DE102018130303A1 (en) * 2018-11-29 2020-06-04 Bayerische Motoren Werke Aktiengesellschaft Measuring device and measuring arrangement

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT390327B (en) * 1988-08-18 1990-04-25 Brosa Erich Annular compression-force measuring cell
DE102018130303A1 (en) * 2018-11-29 2020-06-04 Bayerische Motoren Werke Aktiengesellschaft Measuring device and measuring arrangement

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Legal Events

Date Code Title Description
8141 Disposal/no request for examination