DE2335658A1 - Dynamometer ring with three vertical supports - are rectangular cross-section and uniformly distributed over the periphery - Google Patents

Dynamometer ring with three vertical supports - are rectangular cross-section and uniformly distributed over the periphery

Info

Publication number
DE2335658A1
DE2335658A1 DE19732335658 DE2335658A DE2335658A1 DE 2335658 A1 DE2335658 A1 DE 2335658A1 DE 19732335658 DE19732335658 DE 19732335658 DE 2335658 A DE2335658 A DE 2335658A DE 2335658 A1 DE2335658 A1 DE 2335658A1
Authority
DE
Germany
Prior art keywords
measuring
vertical
ring
columns
horizontal
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.)
Ceased
Application number
DE19732335658
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 DE19732335658 priority Critical patent/DE2335658A1/en
Publication of DE2335658A1 publication Critical patent/DE2335658A1/en
Ceased 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

Abstract

The vertical supports and horizontal stabilising devices between them, are made in one piece with an annular measurement cell. Strain gauges on vertical parts of the above cell, suitable for compression tests, are so mounted in the middle of the wall, that their plane, depending on the milling of compression parts, lie radially. Horizontal stabilising devices are wedge shaped, so that after separation of vertical measurement columns they can be used as flexural bars clamped at one end, with nearly homogeneous surface tension, for a different measurement range. The cuts through vertical columns are limited by inserts to a permissible movement, to serve as overload protection for the horizontal flexural bars.

Description

Kraf tine ßr ingKraf tine ßr ing

Kraftmeßringe herkömmlicher Bauart, insbesondere solche, mit verhältnismäßig großem Durchmesser bei gleichzeitig niederem Meßbereich, sind schwer herstellbar und vertragen wegen der dünnen Querschnitte der lastaufnehmenden Bauteile, wie z. B. dünne Wandungen oder dünne am Umfang verteilte Laststifte 3> keine größeren Qtierbelastungen durch Schubkräfte quer zur Achsrichtung. Bei, aus mehreren Teilen zusammengesetzten Kraftmeßringen z. B. solchen, mit mehreren eingebauten Meßdosen oder Mess-Stiften ergeben sich durch .Reibung und die Summierung von Toleranzen, Ungenauigkeiten und Hysteresefehler beim Messen.Force measuring rings of conventional design, especially those with relatively large diameter with a simultaneously low measuring range, are difficult to manufacture and tolerate because of the thin cross-sections the load-bearing components, such as. B. thin walls or thin load pins distributed around the circumference 3> no major animal loads due to shear forces transverse to the axial direction. At, from several parts composite force washers z. B. those with several built-in Load cells or measuring pins result from friction and the addition of tolerances, inaccuracies and hysteresis errors Measure.

Vorliegende Erfindung erlaubt auf einfache Weise, große Kraftmeßringe mit vorzugsweise niederen Meßbereichen aus einem Stück herzustellen, bei verhältnismäßig kleinem Querschnitt, der für Meßzwecke zu verwendenden Abstützungen, welche durch biegeweiche, seitliche Stabilisierungen gegen Querkräfte vor dem Verbiegen geschützt sind.The present invention allows in a simple manner to manufacture large force measuring rings with preferably lower measuring ranges from one piece, with a relatively small cross section, the supports to be used for measuring purposes, which are protected from bending by flexible, lateral stabilizers against transverse forces.

Abb. 1 zeigt eine Ansicht des Meßringes mit den Lastsäulen 1 und den Querstabilisatoren 2. 3 sind Dehnmeßstreifen für Messungen nach der Stauchmethode.Fig. 1 shows a view of the measuring ring with the load columns 1 and the Cross stabilizers 2. 3 are strain gauges for measurements using the compression method.

Abb. 2 ist ein Teil des Meßringes in Achsrichtung gesehen, zur Verdeutlichung der Form und Lage der Lastsäulen 1 und der Dehnmeßstreifen. Fig. 2 is a part of the measuring ring seen in the axial direction, for clarity the shape and position of the load columns 1 and the strain gauges.

In Abb. 3 sind die Stabilisatoren selbst als Biegestäbe 4 mit keilförmigem Verlauf, für Kraftmessungen mit Dehnmeßstreifen 3Ί nach der Biegestabmethode ausgebildet. Die Lastsäulen 1' sind bei 5 durch trennt und dienen, bei entsprechend eingestellten Luftspalten, als überlastungsschutz für die Biegestäbe 4» fflit den Dehnmeßstreifen 3'·In Fig. 3, the stabilizers themselves are designed as bending bars 4 with a wedge-shaped profile, for force measurements with strain gauges 3Ί according to the bending bar method. The load pillars 1 'are separated at 5 and, with appropriately set air gaps, serve as overload protection for the bending rods 4 » ffl with the strain gauges 3' ·

An anderer Stelle z. B. bei 6 können auch die bereits vorhandenen Schlitze 7 durch Einbau von abgepaßten Zwischenlagen 8 zu Überlastanschlägen ausgebildet werden.Elsewhere z. B. at 6, the already existing slots 7 by installing fitted intermediate layers 8 to overload stops be formed.

409885/0223409885/0223

Claims (1)

PatentansprücheClaims Xraftmeßring dadurch gekernzeichnet, daß mindestens drei gleichmäßig über dem Umfang angeordnete senkrechte Abstützungen» rechteckigen Querschnitts und dazwischenliegende waagerechte Stabilisierungen aus einem Stück eines ringförmigen Meßkörpers hergestellt sind.Xraft measuring ring characterized in that at least three vertical supports evenly arranged over the circumference » rectangular cross-section and intermediate horizontal stabilizers from one piece of an annular Measuring body are made. Kraftmeßring nach Anspruch 1 dadurch gekennzeichnet, daß die Dehnmeßstreifen an den senkrechten Teilen eines für Stauchmessungen geeigneten, ringförmigen Meßkörpers in Wandmitte so befestigt sind, daß ihre Ebene je nach Ausfräsung des zu stauchenden Teiles, eine annähernd radiale fiichtung aufweist.Force measuring ring according to claim 1, characterized in that the strain gauges on the vertical parts are for Compression measurements suitable, ring-shaped measuring body are attached in the center of the wall so that their level depends on the milling of the part to be upset, has an approximately radial fiichtung. Kraftmeßring nach Anspruch 1 bis 2 dadurch gekennzeichnet, daß die waagerechten Stabilisierungen keilförmige Form besitzen, sodaß sie nach dem Durchtrennen der senkrechten Meßsäulen als einseitig eingespannte Biegebalken mit annähernd homogener Oberflächenspannung für einen anderen Meßbereich brauchbar sind.Force measuring ring according to Claims 1 to 2, characterized in that the horizontal stabilizers have a wedge-shaped shape, so that after cutting through the vertical measuring columns as a bending beam clamped on one side with approximately homogeneous surface tension can be used for a different measuring range. Kraftmeßring naoh Anspruch 1 bis 3 dadurch gekennzeichnet, daß die durchtrennten senkrechten Meßsäulen, oder ähnlich wirkende andere Teile des Meßringes, z. B. Schlitze, die durch Beilagestücke auf den zulässigen Hub begrenzt sind, als Überlastschutz für die waagerechten Biegebalken dienen.Force measuring ring according to claims 1 to 3, characterized in that that the severed vertical measuring columns, or similarly acting other parts of the measuring ring, z. B. slots that are limited to the permissible stroke by shims, serve as overload protection for the horizontal bending beams. 409885/0223409885/0223
DE19732335658 1973-07-13 1973-07-13 Dynamometer ring with three vertical supports - are rectangular cross-section and uniformly distributed over the periphery Ceased DE2335658A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE19732335658 DE2335658A1 (en) 1973-07-13 1973-07-13 Dynamometer ring with three vertical supports - are rectangular cross-section and uniformly distributed over the periphery

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19732335658 DE2335658A1 (en) 1973-07-13 1973-07-13 Dynamometer ring with three vertical supports - are rectangular cross-section and uniformly distributed over the periphery

Publications (1)

Publication Number Publication Date
DE2335658A1 true DE2335658A1 (en) 1975-01-30

Family

ID=5886809

Family Applications (1)

Application Number Title Priority Date Filing Date
DE19732335658 Ceased DE2335658A1 (en) 1973-07-13 1973-07-13 Dynamometer ring with three vertical supports - are rectangular cross-section and uniformly distributed over the periphery

Country Status (1)

Country Link
DE (1) DE2335658A1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020418A1 (en) * 1992-04-03 1993-10-14 Weigh-Tronix, Inc. Electronic force sensing load cell
US5391844A (en) 1992-04-03 1995-02-21 Weigh-Tronix Inc Load cell
US5442146A (en) 1992-04-03 1995-08-15 Weigh-Tronix, Inc. Counting scale and load cell assembly therefor
DE10055933A1 (en) * 2000-11-10 2002-05-23 Hbm Mes Und Systemtechnik Gmbh Recorder for measuring applied forces has a rotationally symmetric body with measurement legs arranged between through holes on which strain gages are placed to measure shear forces, which are insensitive to load placement

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1993020418A1 (en) * 1992-04-03 1993-10-14 Weigh-Tronix, Inc. Electronic force sensing load cell
US5336854A (en) 1992-04-03 1994-08-09 Weigh-Tronix, Inc. Electronic force sensing load cell
US5391844A (en) 1992-04-03 1995-02-21 Weigh-Tronix Inc Load cell
US5442146A (en) 1992-04-03 1995-08-15 Weigh-Tronix, Inc. Counting scale and load cell assembly therefor
DE10055933A1 (en) * 2000-11-10 2002-05-23 Hbm Mes Und Systemtechnik Gmbh Recorder for measuring applied forces has a rotationally symmetric body with measurement legs arranged between through holes on which strain gages are placed to measure shear forces, which are insensitive to load placement

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Legal Events

Date Code Title Description
OD Request for examination
8131 Rejection