DE2357484A1 - Thin-walled ring dynamometer - has an upper and lower stabilising ring, each consisting of two parts - Google Patents

Thin-walled ring dynamometer - has an upper and lower stabilising ring, each consisting of two parts

Info

Publication number
DE2357484A1
DE2357484A1 DE2357484A DE2357484A DE2357484A1 DE 2357484 A1 DE2357484 A1 DE 2357484A1 DE 2357484 A DE2357484 A DE 2357484A DE 2357484 A DE2357484 A DE 2357484A DE 2357484 A1 DE2357484 A1 DE 2357484A1
Authority
DE
Germany
Prior art keywords
ring
force
measuring ring
force measuring
stabilizing
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.)
Granted
Application number
DE2357484A
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German (de)
Other versions
DE2357484C2 (en
Inventor
Erich Brosa
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Individual
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Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DE19732357484 priority Critical patent/DE2357484C2/en
Publication of DE2357484A1 publication Critical patent/DE2357484A1/en
Application granted granted Critical
Publication of DE2357484C2 publication Critical patent/DE2357484C2/en
Expired legal-status Critical Current

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

Abstract

The stabilising rings are connected with each other by a thin elastic element. The outer compensation ring is used for the force application and for averaging out roughness. The thin elastic element has a smaller cross-section, more highly loaded per unit area than the part transmitting the forces. A separate compensation ring is provided for force transmission, with a knife-edge applied to the neutral line of the dynamometer ring proper. Stabilising rings are provided with collars and grooves for cover sleeves and sealing rings for measurement elements and connection protection. The compensation ring has pins or screws which hold it in its correct position. The measurement ring carrying the wire strain gauges, wider than the wall thickness, has slots whose faces form an angle with the radius.

Description

KraftmeßringForce measuring ring

Die Meßergebnisse von Kraftmeßringen Abb. 1 mit verhältnismäßig dünnen Stauchzylindern, also besonders solche für niedere Meßbereiche, bei verhältnismäßig großem Durchmesser, hängen sehr von der Qualität und geometrischen Form sowie Formstabilität bei Laständerung, der sie aufnehmenden Maschinenteile ab.The measurement results of force measuring rings Fig. 1 with relative thin compression cylinders, especially those for low measuring ranges, with a relatively large diameter, depend very much on the quality and geometric shape as well as dimensional stability when the load changes, of the machine parts that accommodate them away.

Geringe Unebenheiten oder Biegungen der Belastungsteile erzeugen an einem dünnen Stauchzylinder Ausbuchtungen Abb. 2 nach innen oder außen so, daß aufgeklebte Dehnungsmeßstreifen 2, kurz DMS, falsche Ergebnisse liefern. Selbst Verstärkungen durch starke Stabilisierungsringe 3> welche mit dem Stauchzylinder aus einem Stück bestehen, sind noch zu biegeweich und haben nur geringe Wirkung.Generate slight bumps or bends in the load parts on a thin compression cylinder bulges Fig. 2 inwards or outwards so that stuck-on strain gauges 2, DMS for short, give incorrect results. Even reinforcements due to strong stabilizing rings 3> which are made of one piece with the upsetting cylinder, they are still too flexible and have little effect.

Die vorliegende Erfindung vermeidet diesen Nachteil dadurch, daß die Stabilisierungsringe mittels je einer inneren und einer äußeren Hute 4 und 5 in. zwei Bereiche aufgeteilt sind.' Der innen liegende stärkere Teil 3*<lxent weiter zur Stabilisierung und der schwächere äußere Teil 6 ( Ausgleichsring ) dient zur Aufnahme und Weiterleitung der auftreffenden Meßkräfte. Beide sind durch einen schmalen, biegeweichen Steg 7 miteinander verbunden. TJm die Biegefähigkeit zu erhöhen kann der tragende Querschnitt dieses Steges kleiner sein als der 1, der zur Aufnahme der Dehnungsmeßstreifen dient.The present invention avoids this disadvantage by that the stabilizing rings are divided into two areas by means of an inner and an outer hat 4 and 5 each. The stronger part on the inside 3 * <lxent further for stabilization and the weaker outer part 6 (compensating ring) serves to receive and pass on the measuring forces that strike. Both are through a narrow, flexible web 7 connected with each other. TJm can increase the flexibility the load-bearing cross-section of this web must be smaller than that of 1, which is used to accommodate the strain gauges.

Durch diese Maßnahme werden Unebenheiten und Biegungen der kraftgebenden Maschinenteile von dem eigentlichen Meßring 1 und seinen Stabilisierungsringen 5 ferngehalten.This measure eliminates bumps and bends in the power-generating machine parts from the actual measuring ring 1 and his stabilizing rings 5 kept away.

Es ist auch möglich den Ausgleichsring als ,losen Ring 8 auszubilden, der über der Mitte des Meßringes mit einer Druckkante 9 versehen ist. Er kann beispielsweise durch Schrauben 10 mit dem Stabilisierungsring in seiner zentrischen Lage fixiert werden. Abb.7 .It is also possible to design the compensation ring as a loose ring 8, which is provided with a pressure edge 9 above the center of the measuring ring. He can for example by screws 10 with the stabilization ring fixed in its central position will. Fig 7.

5 0 9 8 2 1/01525 0 9 8 2 1/0152

Durch die Patentanmeldung " P-2335658,3 " ist bekannt in Wandmitte eines Stauchzylinders 1* DMS-11 radial anzubringen. ( Abb. 5· ) Bei sehr dünner Wandung 1, Abb.6 ist es vorteilhaft die DMS-12 unter einen Winkel z. B. 45 zu befestigen, damit die Klebeflache 13 eine breitere Basis erhält. 14 und sind Abdeckungen für die DMS und den elektr. Zuleitungen die in Nuten 16 und 17 eingelegt sind.From the patent application "P-2335658,3" it is known in To be attached radially in the middle of the wall of an upsetting cylinder 1 * DMS-11. (Fig. 5 ·) It is advantageous for very thin walls 1, Fig.6 the DMS-12 at an angle z. B. 45 to attach, so that the adhesive surface 13 is given a broader base. 14 and are covers for the DMS and the electr. Leads inserted in grooves 16 and 17.

509821/0152509821/0152

Claims (1)

PatentansprücheClaims y 1 Kraftmeßring dadurch gekennzeichnet, daß der obere und der untere Stabilisierungsring eines dünnwandigen Meßringes aus je zwei Teilen besteht, die miteinander durch einen elastischen Steg verbunden sind, wobei der äußere Ausgleichsring zur Krafteinleitung und zum Ausgleich von Unebenheiten dient. y 1 force measuring ring, characterized in that the upper and lower stabilizing ring of a thin-walled measuring ring consists of two parts which are connected to each other by an elastic web, the outer compensation ring serving to introduce force and compensate for unevenness. Kraftmeßring nach Anspruch 1. dadurch gekennzeichnet, daß der elastische Steg einen kleineren, spezifisch höher belasteten Querschnitt hat als der Teil, der zur Aufnahme der Meßwerte dient.Force measuring ring according to claim 1, characterized in that the elastic web has a smaller, specifically higher loaded cross-section than the part that is used to record the measured values serves. Kraftmeßring nach Anspruch 1 bis 2 dadurch gekennzeichnet, daß dem Stabilisierungsring ein loser Ausgleichsring zur Kraftübertragung, mit einer über der neutralen Mitte des eigentlichen Meßringes wirkenden Schneidenkante f vorgelagert Force measuring ring according to claims 1 to 2, characterized in that the stabilizing ring is preceded by a loose compensating ring for force transmission, with a cutting edge f acting over the neutral center of the actual measuring ring ist. . ;is. . ; Kraftmeßring nach Anspruch 1 bis 3 dadurch gekennzeichnet, daß die Stabilisierungsringe mit Ansätzen und Nuten für die Aufnahme von"Abdeckmanschetten und Dichtungsringen, zum Schütze der Meßelemente und Leitungen versehen sind.Force measuring ring according to Claims 1 to 3, characterized in that that the stabilizing rings with lugs and grooves for the Acceptance of "cover sleeves and sealing rings, for Contactors of the measuring elements and lines are provided. Kraftmeßring nach Anspruch 1 bis 4 dadurch gekennzeichnet, daß der Ausgleichsring mittels Halterungen z. B. Stiften oder Schrauben in seiner konzentrischen Lage auf dein Stabilisierungsring fixiert ist.Force measuring ring according to Claims 1 to 4, characterized in that that the compensation ring by means of brackets z. B. pins or screws in its concentric position on your stabilizing ring is fixed. Kraftmeßring nach Anspruch 1 bis 5 dadurch gekennzeichnet, daß der Meßring für die Aufnahme von Dehnungsmeßstreifen, die breiter sind als die Wandstärke desselben, Durchbrüche hat, deren Flächen in einem Winkel zum Radius verlaufen.Force measuring ring according to Claims 1 to 5, characterized in that that the measuring ring for holding strain gauges, which are wider than the wall thickness of the same, breakthroughs whose faces are at an angle to the radius. 609821/0152609821/0152 LeerseiteBlank page
DE19732357484 1973-11-17 1973-11-17 Force measuring ring Expired DE2357484C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732357484 DE2357484C2 (en) 1973-11-17 1973-11-17 Force measuring ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732357484 DE2357484C2 (en) 1973-11-17 1973-11-17 Force measuring ring

Publications (2)

Publication Number Publication Date
DE2357484A1 true DE2357484A1 (en) 1975-05-22
DE2357484C2 DE2357484C2 (en) 1984-01-05

Family

ID=5898386

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732357484 Expired DE2357484C2 (en) 1973-11-17 1973-11-17 Force measuring ring

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DE (1) DE2357484C2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3313960A1 (en) * 1982-04-20 1983-10-27 Kistler Instrumente Ag, Winterthur Force-measuring device
EP0290651A1 (en) * 1987-05-13 1988-11-17 Carl Schenck Ag Annular force transducer
DE4330875A1 (en) * 1993-09-13 1995-05-04 F & E Ingenieurgesellschaft Mb Combined force and torque measuring device
DE102014007376A1 (en) * 2014-05-21 2015-12-17 Tecsis Gmbh Measuring element for measuring forces

Families Citing this family (1)

* 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

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422671A (en) * 1966-05-04 1969-01-21 Revere Corp America Load cell
DE1773547A1 (en) * 1967-06-05 1972-02-17 Kelk Ltd George Annular pressure force transducer cell
DE2319086A1 (en) * 1973-04-16 1974-10-31 Erich Brosa FORCE MEASURING RING

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3422671A (en) * 1966-05-04 1969-01-21 Revere Corp America Load cell
DE1773547A1 (en) * 1967-06-05 1972-02-17 Kelk Ltd George Annular pressure force transducer cell
DE2319086A1 (en) * 1973-04-16 1974-10-31 Erich Brosa FORCE MEASURING RING

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3313960A1 (en) * 1982-04-20 1983-10-27 Kistler Instrumente Ag, Winterthur Force-measuring device
EP0290651A1 (en) * 1987-05-13 1988-11-17 Carl Schenck Ag Annular force transducer
DE4330875A1 (en) * 1993-09-13 1995-05-04 F & E Ingenieurgesellschaft Mb Combined force and torque measuring device
DE102014007376A1 (en) * 2014-05-21 2015-12-17 Tecsis Gmbh Measuring element for measuring forces

Also Published As

Publication number Publication date
DE2357484C2 (en) 1984-01-05

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