DE1245167B - Torque meter with overload protection - Google Patents

Torque meter with overload protection

Info

Publication number
DE1245167B
DE1245167B DE1965P0036043 DEP0036043A DE1245167B DE 1245167 B DE1245167 B DE 1245167B DE 1965P0036043 DE1965P0036043 DE 1965P0036043 DE P0036043 A DEP0036043 A DE P0036043A DE 1245167 B DE1245167 B DE 1245167B
Authority
DE
Germany
Prior art keywords
torque meter
overload protection
strain gauges
axially parallel
hollow shaft
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.)
Pending
Application number
DE1965P0036043
Other languages
German (de)
Inventor
Dipl-Ing Heinz Lippert
Petar Palic
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.)
Philips Intellectual Property and Standards GmbH
Original Assignee
Philips Patentverwaltung GmbH
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 Philips Patentverwaltung GmbH filed Critical Philips Patentverwaltung GmbH
Priority to DE1965P0036043 priority Critical patent/DE1245167B/en
Publication of DE1245167B publication Critical patent/DE1245167B/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
    • G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
    • G01L3/02—Rotary-transmission dynamometers
    • G01L3/14—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft
    • G01L3/1407—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs
    • G01L3/1428—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs using electrical transducers
    • G01L3/1457—Rotary-transmission dynamometers wherein the torque-transmitting element is other than a torsionally-flexible shaft involving springs using electrical transducers involving resistance strain gauges

Landscapes

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

Description

Drehmomentmesser mit Oberlastungsschutz Die Erfindung betrifft einen Drehmomentmesser mit Überlastungsschutz, bestehend aus zwei durch Dehnungsmeßstreifen tragende, achsparallele Biegefedern miteinander verbundenen, gleich großen, sich überlappenden und bei Überlastung gegeneinander anlegenden Hohlwellenhälften für den An- bzw. Abtrieb.Torque meter with overload protection The invention relates to a Torque meter with overload protection, consisting of two strain gauges load-bearing, axially parallel spiral springs connected to one another, of the same size overlapping hollow shaft halves that rest against each other in the event of overload the input or output.

Es ist jedoch bereits ein Drehmomentaufnehmer bekannt, z. B. aus der USA.-Patentschrift 2403 952, der einen Überlastungsschutz besitzt. Diese bekannte Anordnung besteht aus einer Welle, um die ein Hohlzylinder konzentrisch angeordnet ist. Dabei sind Welle und Zylinder über vier jeweils um 900 versetzte Blattfedern verbunden, deren Ebenen parallel zur Weilenachse verlaufen und auf denen die Dehnungsmeßstreifen angebracht sind. Der Uberlastungsschutz besteht bei dieser bekannten Anordnung in zlvei auf der Welle gegenüberliegend angeordneten Fingern, die sich beim Erreichen des maximal zuläsigen Drehmomentes gegen gabelförmig gestaltete Stützen an der Innenseite des Zylinders legen. Als nachteifign insbesondere bei hohen Drehzahlen, erweist sich dabei jedoch der erforderliche große Durcllinesser der Anordnung. Auch neigt diese Anordnung leicht zu Eigenschwingungen, durch die das Nleßergebnis nachteilig beeinflußt wird, denn Massen und Trägheitsmomente der mit der antreibenden bzw. abtreibenden Welle verbundenen Teile sind versct eden. However, a torque transducer is already known, e.g. B. off U.S. Patent 2403 952, which has overload protection. This well-known Arrangement consists of a shaft around which a hollow cylinder is concentrically arranged is. The shaft and cylinder are supported by four leaf springs, each offset by 900 connected whose planes run parallel to the shaft axis and on which the strain gauges are appropriate. The overload protection consists in this known arrangement in zlvei fingers arranged opposite one another on the shaft, which when reaching of the maximum permissible torque against fork-shaped supports on the inside of the cylinder. It proves to be detrimental, especially at high speeds However, the required large diameter of the arrangement is thereby. Also tends this arrangement easily leads to natural oscillations, which is detrimental to the measuring result is influenced, because masses and moments of inertia of the driving resp. parts connected to the output shaft are different.

Diese Nachteile vermeidet die erfindungsgemäße Ausbildung des Drehmomentmessers. Diese ist dadurch gekennzeichnet, daß jede Hohlwellenhälfte in asiate Richtung halbiert ist und je zwei radial gegenüberliegende Quadranten durch je eine achsparallele, zu der anderen senkrecht angeordnete, mit Dehnungsmel?.st:eifen versehene Biegefeder miteinander verbunden sind. The design of the torque meter according to the invention avoids these disadvantages. This is characterized in that each hollow shaft half is halved in the Asian direction and two radially opposite quadrants each by one axially parallel, to the other vertically arranged, with expansion element: a spiral spring provided are connected to each other.

An Hand der Zeichnung wird die Erfindung näher bcschrnieben. Eine Hohlwelle ist durch achsparallele, um 90 gegeneinander versetzte Schnitte in vier Quadranten 6 7, F. 9 geteilt. Jeweils zwei einander gegenüberlieaende Quadranten, z. B. 6-8 und 7-9, sind mittels Blattfedern 10 bzw. 11 miteinander verbunden; auf den Blattfedern sind in bekannter Weise die Dehnungsmeßstreifen angebracht. The invention is described in more detail with reference to the drawing. One Hollow shaft is divided into four by axially parallel cuts offset from one another by 90 Quadrants 6 7, F. 9 divided. Two opposing quadrants each, z. B. 6-8 and 7-9, are connected to one another by means of leaf springs 10 and 11, respectively; on the leaf springs are attached to the strain gauges in a known manner.

Zwei beliebi,,e, benachbarte Quadranten sind mit der antreibenden. die beiden anderen Quadranten mit der abtreibenden Welle fest verbunden. Any two adjacent quadrants are driving. the other two quadrants are firmly connected to the driven shaft.

Die herstellungstechnisch bedingte Größe des Luftspaltes kann durch geeignete Justiermittel, wie z. B. The size of the air gap due to the manufacturing process can be achieved by suitable adjustment means, such as. B.

Schrauben, im fertiggestellten Zustand so nachgestellt werden, daß z. B. bei zweifacher Drehmoment-Nennlast der ÜbeflastungssduU - das Anlegen der Wellenhalbstücke aneinander - eintritt.Screws to be readjusted in the finished state so that z. B. at twice the nominal torque load of the ÜbereflastungssduU - the application of the Shaft halves together - enter.

Für die Speisung der Dehnungsmeßstreifen und für die Abnahme der Meßspannung der Dehnungsmeßstreifen können in bekannter Weise z. B. Schleifringe oder Drehübertrager benutzt werden. For the supply of the strain gauges and for the acceptance of the Measurement voltage of the strain gauges can be used in a known manner, for. B. slip rings or rotary joints can be used.

Claims (2)

Patentansprüche: 1. Drehmomentmesser mit Überlastungsschutz, bestehend aus zwei durch Dehnungsmeßstreifen tragende, achsparallele Biegefedern miteinander verbundenen, gleich großen, sich überlappenden und bei Überlastung gegeneinander anlegenden Hoblwellenhälften für den An- bzw. Abtrieb, dadurch gekennzeichnet, daßjedeHohlwellenhälfte in axialer Richtung halbiert ist und je zwei radial gegenüberliegende Quadranten (6-8; 7-9) durch je eine achsparallele, zu der anderen senkrecht angeordnete, mit Dehnungsmeßstreifen versehene Biegefeder (10, 11) miteinander verbunden sind. Claims: 1. Torque meter with overload protection, consisting consisting of two axially parallel spiral springs supported by strain gauges connected, equally large, overlapping and when overloaded against each other adjacent hobl shaft halves for the drive and output, characterized in that each hollow shaft half is halved in the axial direction and each has two radially opposite quadrants (6-8; 7-9) through one axially parallel, one perpendicular to the other, with Flexural springs (10, 11) provided with strain gauges are connected to one another. 2. Drehmomentmesser nach Anspruch 1, dadurch gekennzeichnet, daß der maximale Verdrehungswinkel der Hohlwellenhälften gegeneinander einstellbar ist. 2. Torque meter according to claim 1, characterized in that the maximum angle of rotation of the hollow shaft halves can be set against each other. In Betracht gezogene Druckschriften: Patentschrift Nr. 21 521 des Amtes für Erfindungs-und Patentwesen in der sowjetischen Besatzungszone Deutschlands; USA.- Patentschriften Nr. 979 503, 2 403 952, 2913690. Documents considered: Patent Specification No. 21 521 des Office for Inventions and Patents in the Soviet Zone of Occupation in Germany; U.S. Patent Nos. 979,503, 2,403,952, 2913690.
DE1965P0036043 1965-02-11 1965-02-11 Torque meter with overload protection Pending DE1245167B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1965P0036043 DE1245167B (en) 1965-02-11 1965-02-11 Torque meter with overload protection

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1965P0036043 DE1245167B (en) 1965-02-11 1965-02-11 Torque meter with overload protection

Publications (1)

Publication Number Publication Date
DE1245167B true DE1245167B (en) 1967-07-20

Family

ID=7374539

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1965P0036043 Pending DE1245167B (en) 1965-02-11 1965-02-11 Torque meter with overload protection

Country Status (1)

Country Link
DE (1) DE1245167B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19605096A1 (en) * 1995-02-13 1996-08-22 Toyoda Automatic Loom Works Torque sensor for determining torque applied at rotational shaft
DE19834897C1 (en) * 1998-08-03 1999-10-21 Mannesmann Vdo Ag Torque sensor manufacturing method e.g. for automobile servo steering torque sensor

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE21521C (en) * C. WESTPHAL in Braunschweig Packing box
US979503A (en) * 1909-12-04 1910-12-27 Charles Henry Johnson Electrical torsiometer.
US2403952A (en) * 1944-09-02 1946-07-16 Baldwin Locomotive Works Torque meter
US2913690A (en) * 1958-02-10 1959-11-17 Baldwin Lima Hamilton Corp Angular position transducers

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE21521C (en) * C. WESTPHAL in Braunschweig Packing box
US979503A (en) * 1909-12-04 1910-12-27 Charles Henry Johnson Electrical torsiometer.
US2403952A (en) * 1944-09-02 1946-07-16 Baldwin Locomotive Works Torque meter
US2913690A (en) * 1958-02-10 1959-11-17 Baldwin Lima Hamilton Corp Angular position transducers

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19605096A1 (en) * 1995-02-13 1996-08-22 Toyoda Automatic Loom Works Torque sensor for determining torque applied at rotational shaft
US5831180A (en) * 1995-02-13 1998-11-03 Kabushiki Kaisha Toyoda Jidoshokki Seisakusho Torque sensing and strain detecting device
DE19605096C2 (en) * 1995-02-13 1999-04-29 Toyoda Automatic Loom Works Torque sensor and voltage detection element
DE19834897C1 (en) * 1998-08-03 1999-10-21 Mannesmann Vdo Ag Torque sensor manufacturing method e.g. for automobile servo steering torque sensor
US6257075B1 (en) 1998-08-03 2001-07-10 Mannesmann Vdo Ag Method of producing a sensor having a rotary angle limiter for registering a torque, and sensor produced in accordance with this method

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