DE474873C - Correction device in electrical measuring instruments for setting and regulating a spring - Google Patents

Correction device in electrical measuring instruments for setting and regulating a spring

Info

Publication number
DE474873C
DE474873C DEH104331D DEH0104331D DE474873C DE 474873 C DE474873 C DE 474873C DE H104331 D DEH104331 D DE H104331D DE H0104331 D DEH0104331 D DE H0104331D DE 474873 C DE474873 C DE 474873C
Authority
DE
Germany
Prior art keywords
correction device
spring
setting
regulating
electrical measuring
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.)
Expired
Application number
DEH104331D
Other languages
German (de)
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.)
ABB Training Center GmbH and Co KG
Original Assignee
Hartmann and Braun AG
Publication date
Priority to DEH104331D priority Critical patent/DE474873C/en
Application granted granted Critical
Publication of DE474873C publication Critical patent/DE474873C/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D13/00—Component parts of indicators for measuring arrangements not specially adapted for a specific variable
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
    • G01D11/16—Elements for restraining, or preventing the movement of, parts, e.g. for zeroising
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02—General constructional details

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Operated Clutches (AREA)
  • Braking Arrangements (AREA)

Description

Korrektionseinrichtung bei elektrischen Wießinstrumenten zuni Einstellen und Regulieren einer Feder Die Erfindung betriffi eine besondbre Ausbildung einer Eüistellvorric-htung bei einem elektrischen Meßinstrument. Es ist hierbei üblich, zwei zentrisch zueinander gelagerte und selbständig einstellbare Teile zu. benutzen, und zwar einen Federarrnf, welcher die Roheinstellung einer Torsionsfedert Übernimmt und einen EinstellUebel li (sogenannten KOTrektionshebel), der die kleinen Abweichungen des Zeigers von dem Nullpunkt wieder ausgleicht, und zwar dadurch, daß er den nachträglich mit ihm fest verbundenen Federarm / in seiner Beweg-4ng mitschleppt. Der Arm/ dient fÜr die erstmalige Einstellung, deT Arm k für die nachträgliche Regulierung. Dieser ist deshalb meistens durch sein-en von außen her angebrachten Mitnehmer innerhalb kleiner Grenzen beweglich.Correction device in electrical measuring instruments for setting and regulating a spring. The invention relates to a special design of an adjusting device in an electrical measuring instrument. It is common here to add two independently adjustable parts that are centrally mounted to one another. use, namely a Federarrnf, which takes over the raw setting of a torsion spring and an adjustment lever left (so-called KOTrektionshebel), which compensates for the small deviations of the pointer from the zero point, namely by the fact that he subsequently firmly connected to it spring arm / in his Movement dragged along. The arm / is used for the initial setting, the arm k for the subsequent adjustment. This is therefore usually movable within small limits due to its driver attached from the outside.

Die bisher üblichen Befestigungsarten sowohl in bezug auf Lagerung als a!uf nachträgliche Kopplung stellten hohe Ansprüche an die Zuverlässigkeit des Ausführenden, abgesehen von ihrer Kostspieligkeit, denn sie erfordern eine erhebliche Anzahl von Einzelteilen.The previously common types of fastening both in terms of storage as a result of subsequent coupling made high demands on the reliability of the Performers, apart from their costliness, because they require a considerable amount of work Number of items.

Gemäß der Erfindung wird die Vereinfachung dadurch herbeigeführt, daß die beiden unabhängig voneinander einzustellenden und nachträglich aber zu koppelnden Teile j und A durch eine Friktionskupplung miteinander verbunden sind.According to the invention, the simplification is brought about in that the two parts j and A, which are to be set independently of one another and are to be coupled subsequently, are connected to one another by a friction coupling.

Die sehr vergrößerte Abbildung zeigt aJs Friktionskupplung eine besonders Zweckmäßige. Es wird nämlich eine der beiden aufeinanderliegenden kreisrunden Flächen, z. B. die des Hebels k, mit einer Zahnung versehen. In diese Zahnung greifen federnde Vorsprünge der entsprechenden Gegenscheibe des Hebels f ein in der Weise, daß sie bei starker Beanspruchung nachgeben, d. h. eine Veränderung der gegenseitigen Lage erlauben, jedoch nach erfolgter Einstellung lediglich durch Friktion mitgenommen. werden, so daß der Federarm/ der Gegenbewegung von h folgt. Die weiter angestrebte Erspaxnis von Einzelteil-en wird durch. die- Ausbildung der Brücke b erzielt, welche einen Schlitz s erhält. Die beiden konzentrischen, als Scheibenfeder wirIkenden Scheiben F und H der Hebel f und li erhalten durch die durchgehende, die Systemachsea haltende Lagerschraubel ihre zentrische Führung und durch den genannten Schlitz in der Brücke ihren Halt nach oben und unten. Die Breite des Schlitzes ist geringer als der von den aufeinandergelegten Flächen beanspruchte Raum, die nämlich -erst beü-n Einschieben in den Schlitz zusammengedrückt werden.The very enlarged illustration shows a particularly useful one as a friction clutch. It is namely one of the two superposed circular surfaces, z. B. that of the lever k, provided with teeth. Resilient projections of the corresponding counter-disk of the lever f engage in this toothing in such a way that they yield when subjected to heavy loads, d. H. allow a change in the mutual position, but only taken along by friction after adjustment. so that the spring arm / the countermovement of h follows. The further targeted savings of individual parts is achieved by. the formation of the bridge b achieved, which receives a slot s. The two concentric disks F and H of levers f and li, acting as woodruff springs, receive their centric guidance through the continuous bearing screw holding the system axis and their support upwards and downwards through the aforementioned slot in the bridge. The width of the slot is less than the space required by the surfaces placed on top of one another, which are namely compressed only when they are pushed into the slot.

Claims (1)

PATENTANSPRÜciir#,: i. Korrektionsein:richtung bei elektrischen Meßinstrumenten zum Einstellen und Regulieren einer Fedex, dadurch gekennzeichnet, daß ein das Federende tragender Einstellhebel (f) und ein KürrektionshebeJ (h) du.Tch Friktian zwangläufig miteinander verbunden sind. --. Korrek-d-onseinrichtung nach Ansprucli i, dadurch gekennzeichnet, daß die Friktion durch Zahneingrifie bewexkstelligt wird. 3. Korrektionseinrichtung nach Anspruch i und 2, dadurch, gekennzeichnet, daß die Friktionsscheibe als Scheibenfeder ausgebildet ist. 4. Korrektionseinrichtung nach Anspruch i bis 3, dadurch gekennzeichnet, daß die Systernbrücke mit einem Schlitz versehen ist, der enger ist als die in freiem Zustande der aufeinanderliegenden, Friktionsscheiben beanspruchten Höhe. 5. Korrektionseinrichtung nach Anspruch i bis 4, dadurch gekennzeich>-net, daß die Lagerschraube (i) gleichzeitig als Achse fü-r die Fiiktionssch-eibe ausgebildet ist.PATENT CLAIM #,: i. Correction device: device in electrical measuring instruments for setting and regulating a Fedex, characterized in that an adjusting lever (f) carrying the end of the spring and a curvature lifting device (h) du.Tch Friktian are inevitably connected to one another. -. Correction device according to claim i, characterized in that the friction is brought about by tooth engagement. 3. Correction device according to claim i and 2, characterized in that the friction disc is designed as a disc spring. 4. Correction device according to claim i to 3, characterized in that the system bridge is provided with a slot which is narrower than the height claimed in the free state of the superposed friction disks. 5. Correction device according to claim i to 4, characterized in that the bearing screw (i) is designed at the same time as an axis for the fiction washer.
DEH104331D Correction device in electrical measuring instruments for setting and regulating a spring Expired DE474873C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEH104331D DE474873C (en) Correction device in electrical measuring instruments for setting and regulating a spring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEH104331D DE474873C (en) Correction device in electrical measuring instruments for setting and regulating a spring

Publications (1)

Publication Number Publication Date
DE474873C true DE474873C (en) 1929-04-15

Family

ID=7169492

Family Applications (1)

Application Number Title Priority Date Filing Date
DEH104331D Expired DE474873C (en) Correction device in electrical measuring instruments for setting and regulating a spring

Country Status (1)

Country Link
DE (1) DE474873C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107952B (en) * 1958-07-11 1961-05-31 Siemens Ag Device for angle adjustment of a part connected to a shaft for measuring devices
DE3935851A1 (en) * 1989-10-27 1991-05-02 Asea Brown Boveri Measuring appts. with adjusting elements accessible from front - has two concentric setting spindles, outer being joined to indicator and inner zero setter via coupling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1107952B (en) * 1958-07-11 1961-05-31 Siemens Ag Device for angle adjustment of a part connected to a shaft for measuring devices
DE3935851A1 (en) * 1989-10-27 1991-05-02 Asea Brown Boveri Measuring appts. with adjusting elements accessible from front - has two concentric setting spindles, outer being joined to indicator and inner zero setter via coupling

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