AT107533B - Vibration dampers for pressure gauges and similar measuring devices. - Google Patents

Vibration dampers for pressure gauges and similar measuring devices.

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Publication number
AT107533B
AT107533B AT107533DA AT107533B AT 107533 B AT107533 B AT 107533B AT 107533D A AT107533D A AT 107533DA AT 107533 B AT107533 B AT 107533B
Authority
AT
Austria
Prior art keywords
pressure gauges
measuring devices
similar measuring
vibration dampers
spring
Prior art date
Application number
Other languages
German (de)
Original Assignee
Schaeffer & Budenberg 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 Schaeffer & Budenberg Gmbh filed Critical Schaeffer & Budenberg Gmbh
Application granted granted Critical
Publication of AT107533B publication Critical patent/AT107533B/en

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Description

  

   <Desc/Clms Page number 1> 
 



    Schwingungsdämpfer für Manometer und   ähnliche   Messgeräte.   



   Manometer, bei welchen die Bewegung des freien Endes der Röhrenfeder auf den die Verdrehung des Zeigers bewirkenden Zahnsektor zur Dämpfung der Schwingungen durch ein federndes   Verbindungs-   glied statt eines starren Lenkers übertragen wird, sind bekannt. Hiefür hat man zylindrische Schraubenfedern oder flache Spiralfedern, wie für Uhren, vorgeschlagen. Das federnde Verbindungsglied hat hauptsächlich den Zweck, die bei starrem Lenker vorhandenen Scharnierbolzen, die sich durch fortgesetzte
Schwankungen der Röhrenfeder leicht ausschleifen, zu ersetzen ; zur Aufnahme von Schwingungen, z. B. durch Dampfstösse, in der Weise, dass diese nicht auf den Zeiger   übertlagen   werden, ist diese Ausbildung der Feder nicht geeignet. 



   Gemäss der Erfindung wird eine weiche Abfederung der Schwingungen dadurch erzielt, dass zwischen die Röhrenfeder und den Zeigersektor zwei durch eine Ellipsenfeder verbundene Lenkerarme geschaltet sind, die an den beiden Breitseiten der Ellipsenfeder mittels Schuhen befestigt werden und sich unter Wirkung der letzteren wechselweise so gegen-und voneinander bewegen, dass ihre Achsen immer in die Verbindungslinie der beiden Gelenkpunkte fallen. 



   Auf der Zeichnung ist eine Ausführungsform der Erfindung beispielsweise dargestellt. Fig. 1 ist die Vorderansicht, Fig. 2 die Seitenansicht, wobei die Röhrenfeder teilweise weggebrochen ist. 



   Die Röhrenfeder 1 ist mit dem Zahnsektor 3 des Zeigers 5 durch ein aus den Lenkerarmen 8 und 9 und der   Ellipsenfeder   2 bestehendes federndes Zwischenglied verbunden. Die beiden Arme 8 und 9 sind einerseits mittels Gelenkzapfen 10 und 11 mit dem freien Ende 12 der Röhrenfeder 1 bzw. dem   Zahnsektor J   
 EMI1.1 
 das Bestreben, in Ruhe zu bleiben, während die Ellipsenfeder 2, die zu diesem Zweck sehr schwach gewählt ist, alle in kurzen Zeiträumen verlaufenden Schwingungen aufnimmt. 



   Reicht die Trägheit des Zeigers oder der fest mit diesem verbundenen Teile nicht aus, um eine genügende Dämpfung zu erreichen, so kann zur Erhöhung des Trägheitsmomentes auf der Zeigerwelle 4 noch als zusätzliche Masse die Scheibe 6 angebracht werden. Die Dämpfung kann noch dadurch erhöht werden, dass um die Scheibe 6 ein oder mehrere Magnete 7 angeordnet werden, die in bekannter Weise infolge der auftretenden Wirbelströme dämpfend wirken. 

**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



   <Desc / Clms Page number 1>
 



    Vibration dampers for pressure gauges and similar measuring devices.



   Pressure gauges in which the movement of the free end of the tubular spring is transmitted to the toothed sector causing the rotation of the pointer for damping the vibrations by a resilient connecting member instead of a rigid link are known. For this purpose, cylindrical coil springs or flat spiral springs, as for clocks, have been proposed. The main purpose of the resilient connecting member is to remove the hinge pins which are present in the case of a rigid handlebar and which are continued through
Slightly grind out fluctuations in the tubular spring, replace; to absorb vibrations, e.g. B. by bursts of steam, in such a way that these are not transferred to the pointer, this design of the spring is not suitable.



   According to the invention, a soft cushioning of the vibrations is achieved in that two link arms connected by an elliptical spring are connected between the tubular spring and the pointer sector, which are attached to the two broad sides of the elliptical spring by means of shoes and, under the action of the latter, alternately move against and move from each other so that their axes always fall into the line connecting the two points of articulation.



   The drawing shows an embodiment of the invention, for example. Fig. 1 is the front view, Fig. 2 is the side view with the tubular spring partially broken away.



   The tubular spring 1 is connected to the toothed sector 3 of the pointer 5 by a resilient intermediate member consisting of the control arms 8 and 9 and the elliptical spring 2. The two arms 8 and 9 are on the one hand connected to the free end 12 of the tubular spring 1 or the toothed sector J by means of pivot pins 10 and 11
 EMI1.1
 the endeavor to remain at rest, while the elliptical spring 2, which is chosen to be very weak for this purpose, absorbs all vibrations running in short periods of time.



   If the inertia of the pointer or the parts firmly connected to it is not sufficient to achieve sufficient damping, the disk 6 can be attached to the pointer shaft 4 as an additional mass to increase the moment of inertia. The damping can be further increased by arranging one or more magnets 7 around the disk 6, which have a damping effect in a known manner as a result of the eddy currents that occur.

** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

PATENT-ANSPRUCH : Schwingungsdämpfer für Manometer und ähnliche Messgeräte, dadurch gekennzeichnet, dass zwischen die Röhrenfeder (1) und den Zeigersektor (3) zwei durch eine Ellipsenfeder (2) verbundene, an deren Breitseiten mittels der Schuhe ,. 14) befestigte Lenkerarme (8 und 9) geschaltet sind. EMI1.2 **WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. PATENT CLAIM: Vibration damper for pressure gauges and similar measuring devices, characterized in that between the tubular spring (1) and the pointer sector (3) two connected by an elliptical spring (2), on the broad sides of which by means of the shoes,. 14) attached link arms (8 and 9) are switched. EMI1.2 ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT107533D 1924-11-24 1925-11-16 Vibration dampers for pressure gauges and similar measuring devices. AT107533B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE107533X 1924-11-24

Publications (1)

Publication Number Publication Date
AT107533B true AT107533B (en) 1927-10-10

Family

ID=29276179

Family Applications (1)

Application Number Title Priority Date Filing Date
AT107533D AT107533B (en) 1924-11-24 1925-11-16 Vibration dampers for pressure gauges and similar measuring devices.

Country Status (1)

Country Link
AT (1) AT107533B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926390A1 (en) * 1979-06-29 1981-01-15 Erich Zachariae Remote measurement unit such as manometer position transfer device - comprises axially moving rod with restraining spring between guide and axial component
DE3703730A1 (en) * 1987-02-07 1988-08-18 Samson Ag Torque-compensating measuring transducer

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2926390A1 (en) * 1979-06-29 1981-01-15 Erich Zachariae Remote measurement unit such as manometer position transfer device - comprises axially moving rod with restraining spring between guide and axial component
DE3703730A1 (en) * 1987-02-07 1988-08-18 Samson Ag Torque-compensating measuring transducer

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