DE682350C - A measuring device arranged on a strength testing machine for the direct determination of the elasticity of materials - Google Patents
A measuring device arranged on a strength testing machine for the direct determination of the elasticity of materialsInfo
- Publication number
- DE682350C DE682350C DEH150945D DEH0150945D DE682350C DE 682350 C DE682350 C DE 682350C DE H150945 D DEH150945 D DE H150945D DE H0150945 D DEH0150945 D DE H0150945D DE 682350 C DE682350 C DE 682350C
- Authority
- DE
- Germany
- Prior art keywords
- measuring device
- elasticity
- testing machine
- materials
- strength testing
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/30—Measuring arrangements characterised by the use of mechanical techniques for measuring the deformation in a solid, e.g. mechanical strain gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/02—Details
- G01N3/06—Special adaptations of indicating or recording means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Description
An einer Festigkeitsprüfmaschine angeordnetes Meßgerät zur unmittelbaren Bestimmung des Elastizitätsmaßes von Werkstoffen Zur Bestimmung des Elastizitätsmaßes wird in der Regel ein Probestab an den Enden auf zwei Auflager gelegt und in der Mitte von der den Auflagern gegenüberliegenden Seite belastet. Bei genügend großer Berastung biegt sich der Probestab durch, und aus dem Verhältnis zwischen Belastung und Durchbiegung ergibt sich das Elastizitätsmaß des geprüften Werkstoffes. Zur unmittelbaren Bestimmung des Elastizitätsm aß es von Werk-Stoffen sind Meßgeräte bekanntgeworden, die an Festigkeitsprüfmaschinen angeschlossen werden können. D,as Ablesen des Meßwertes bei diesen Geräten ist jedoch umständlich und zeitraubend, besonders bei einer großen Anzahl von Versuchen mit immer wechselnder Belastung.Measuring device arranged on a strength testing machine for direct Determination of the degree of elasticity of materials To determine the degree of elasticity a test rod is usually placed on two supports at the ends and in the Loaded in the middle from the side opposite the supports. With a sufficiently large one The test rod bends through contact and from the relationship between the load and deflection results in the degree of elasticity of the tested material. To the direct determination of the measure of elasticity of materials are measuring devices became known that can be connected to strength testing machines. That Reading the measured value with these devices is cumbersome and time-consuming, especially with a large number of experiments with constantly changing loads.
Diese Mängel sind an dem Meßgerät gemäß der Erfindung beseitigt. Die Erfindung geht von einem solchen an einer Fiestigkeitsprüfmaschine angeordneten Meßgerät aus und besteht darin, daß eine in Abhängigkeit vom Lastanzeiger betätigte Vorrichtung vorgesehen ist, die das Meßgerät beim Erreichen einer bestimmten Last abschaltet. In an sich bebekannter Weise besitzt die Abschaltvorrichtung einen Anschlag, der für verschiedene Brelastungen einstellbar ist. These deficiencies have been eliminated in the measuring device according to the invention. The invention is based on such a device arranged on a strength testing machine Measuring device and consists in that one actuated depending on the load indicator Device is provided that the measuring device when reaching a certain load turns off. In a manner known per se, the disconnection device has a stop, which is adjustable for different loads.
In den Abbildungen ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt. In the figures is an embodiment of the subject matter of the invention shown.
Abb. 1 zeigt die an einer Biegefestigkeitsprüfmaschine angebrachte Elastizitätsmeßeinrichtung in Seitenansicht. Fig. 1 shows the one attached to a flexural strength testing machine Elasticity measuring device in side view.
Abb. 2 stellt die Auflagerung des zu prüfenden Werkstückes und Abb. 3 das Meßgerät in Rückansicht dar. Fig. 2 shows the support of the workpiece to be tested and Fig. 3 shows the measuring device in a rear view.
In bekannter Weise wird das auf den auf lagern 1 (Abb. 1 und 2) des Einspannkopfes 2 liegende zu prüfende Werkstück 3 mittels eines Hand oder Motorantriebs 5 über ein Schneckenrad und eine Spindel 6 an das Auflager 4 des Einspannkopfes 7 gedrückt. In a known way, this is stored on the 1 (Fig. 1 and 2) of the Clamping head 2 lying workpiece 3 to be tested by means of a hand or motor drive 5 via a worm wheel and a spindle 6 to the support 4 of the clamping head 7 pressed.
Dieser schwenkt über den Hebelarm 8 und die Strebe 9 sdas Pendelgewicht 10 in bekannter Weise um die Achse I I nach rechts. Der Pendelhebei 12 drückt an den Anschlag 13 und verschiebt in bekannter Weise dieWelle 14 in axialer Richtung. Das gerillte Ende der Welle 14 dreht dabei in bekannter Weise die Antriebswelle 15 des Belastungsanzeigers I6. Der Zapfen 17 (Abb. 1 und 3) des mit dem Einspannkopf 7 sich nach oben bewegenden Elastizitätsmeßgerätes I8 wird vom Wellenende 19 festgehalten und gleitet im Schlitz 20 des Meßgerätes 18. Der Zeiger 21 wird durch den Hebel 22 über die Zahnräder 23 gedreht. Bei Erreichung der vorher bestimmten Belastung ist die Wdie 14 so weit nach links verschoben, daß das Ende 19 von dem Zapfen 17 abgleitet und das Meßgerät 18 abschaltet.This pivots over the lever arm 8 and the strut 9 s the pendulum weight 10 in a known manner about the axis I I to the right. The pendulum lever 12 presses on the stop 13 and moves the shaft 14 in a known manner in the axial direction. The grooved end of the shaft 14 rotates the drive shaft in a known manner 15 of the load indicator I6. The pin 17 (Fig. 1 and 3) of the with the clamping head 7 upwardly moving elasticity measuring device I8 is held by the shaft end 19 and slides in the slot 20 of the meter 18. The pointer 21 is moved by the lever 22 rotated via the gears 23. When the previously determined load is reached the turn 14 is shifted so far to the left that the end 19 of the pin 17 slides off and the measuring device 18 switches off.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH150945D DE682350C (en) | 1937-03-10 | 1937-03-10 | A measuring device arranged on a strength testing machine for the direct determination of the elasticity of materials |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEH150945D DE682350C (en) | 1937-03-10 | 1937-03-10 | A measuring device arranged on a strength testing machine for the direct determination of the elasticity of materials |
Publications (1)
Publication Number | Publication Date |
---|---|
DE682350C true DE682350C (en) | 1939-10-13 |
Family
ID=7181045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEH150945D Expired DE682350C (en) | 1937-03-10 | 1937-03-10 | A measuring device arranged on a strength testing machine for the direct determination of the elasticity of materials |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE682350C (en) |
-
1937
- 1937-03-10 DE DEH150945D patent/DE682350C/en not_active Expired
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