DE741931C - Device for determining the long-term impact resistance of suddenly stressed parts, in particular gun parts - Google Patents

Device for determining the long-term impact resistance of suddenly stressed parts, in particular gun parts

Info

Publication number
DE741931C
DE741931C DEM149877D DEM0149877D DE741931C DE 741931 C DE741931 C DE 741931C DE M149877 D DEM149877 D DE M149877D DE M0149877 D DEM0149877 D DE M0149877D DE 741931 C DE741931 C DE 741931C
Authority
DE
Germany
Prior art keywords
parts
determining
piston
impact resistance
long
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
DEM149877D
Other languages
German (de)
Inventor
Hansgeorg Lottes
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.)
Mauser Werke AG
Original Assignee
Mauser Werke AG
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 Mauser Werke AG filed Critical Mauser Werke AG
Priority to DEM149877D priority Critical patent/DE741931C/en
Application granted granted Critical
Publication of DE741931C publication Critical patent/DE741931C/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N3/00Investigating strength properties of solid materials by application of mechanical stress
    • G01N3/30Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight
    • G01N3/307Investigating strength properties of solid materials by application of mechanical stress by applying a single impulsive force, e.g. by falling weight generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means

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  • 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)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Percussive Tools And Related Accessories (AREA)

Description

Vorrichtung zum Feststellen der Dauerschlagfestigkeit von schlagartig beanspruchten Teilen, insbesondere Schußwaffenteilen Es sind bereits Vorrichtungen zum Feststellen der Dauerschlagfestigkeit von schlagartig beanspruchten Teilen, insbesondere Schußwaffenteilen, bekannt, bei denen im Arbeitszylinder ein Schlagkolben zwischen Endpuffern hin und her schwingt. Bei diesen bekannten Dauerschlagvorrichtungen ist aber die Veränderung des Arbeitshubes des Schlaglcolbens ziemlich umständlich. Dieser Nachteil wird durch die erfindungsgemäße Dauerschlagovrrichtung beseitigt.Device for determining the continuous impact resistance of abruptly claimed parts, especially gun parts There are already devices to determine the long-term impact resistance of suddenly stressed parts, in particular gun parts, known in which a percussion piston in the working cylinder oscillates back and forth between end buffers. In these known continuous impact devices however, changing the working stroke of the hammer piston is rather cumbersome. This disadvantage is eliminated by the continuous impact device according to the invention.

Die Erfindung geht von einer der vorstehend erwähnten Datierschlagvorrichtungen aus un besteht zunächst darin, daß ein Teil der inneren Wand des Arbeitszylinders von einem axial verschiebbaren Verlängerungskörper, z. B. einer Laufbüchse, gebildet wird, deren frei liegender Rand die am Schaft des Schlagkolbens angeordneten Auspuffschlitze steuert. Bei Verwerrdung eines zweistufigen Schlagkolbens wird erfindungsgemäß die kleinere Schlagliolbenstufe von der Laufbüchse und die größere Schlagkoibenstufe von der Innenfläche des Arbeitszylinders geführt. The invention is based on one of the aforementioned dating devices from un consists first of all in that part of the inner wall of the working cylinder from an axially displaceable extension body, e.g. B. a liner formed the exposed edge of which the exhaust slots arranged on the shaft of the percussion piston controls. When a two-stage percussion piston is distorted, according to the invention the smaller impact piston step from the barrel and the larger impact piston step guided by the inner surface of the working cylinder.

In den Abbildungen ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt, und zwar zeigt Abb. I einen Längsschnitt durch die Vorrichtung bei vollendetem Arbeitshub und Abb. 2 kurz vor vollendetem Rückhub. In the figures is an embodiment of the subject matter of the invention shown, namely Fig. I shows a longitudinal section through the device at completed working stroke and Fig. 2 shortly before the completed return stroke.

In das untere Ende des Zylindergehäuses I mit der Zylon!derbohrung I' ist die Laufbüchse 7 eingesteckt. Sie ist axial verschiebbar. Es können besondere Mittel zu ihrer Verstellung und Festhaltung vorgesehen werden. Zur Vereinfachung der Darstellung sind sie hier weggelassen. Die Innenwand der Laufbüchse 7 dient der kleineren Stufe 3 des Schlagkolbens 3, 4 als Führung. Die größere Kolbenstufe 4 findet an der Innenfläche I' des Arbeitszylinders 1 Führung. Im Schlagkolben ist eine Aushölllung 5 vorgesehen, von der Auspuffschlitze 6 nach dem Schaft des Kolbens ausmünden. Der Zylinder I ist an seinem oberen Teil mit einem erweiterten Kopf 8 versehen, innerhalb dessen die die Fortsetzung des Zylinders 1 bildende Zylinderwand Schlitze g aufweist. Im oberen Teil des Kopfes 8 ist der Puffer 10 angeordnet. In the lower end of the cylinder housing I with the cylinder bore I 'the liner 7 is inserted. It can be moved axially. It can be special Means are provided for their adjustment and retention. For simplification they are omitted here in the illustration. The inner wall of the liner 7 is used the smaller stage 3 of the percussion piston 3, 4 as a guide. The larger piston stage 4 takes place on the inner surface I 'of the working cylinder 1 guidance. There is in the percussion piston a cavity 5 is provided, from the exhaust port 6 to the stem of the piston flow out. The cylinder I is on his upper part with an extended Head 8 provided, within which the continuation of the cylinder 1 forming the cylinder wall Has slots g. The buffer 10 is arranged in the upper part of the head 8.

Die Arbeitsweise der Vorrichtung ist folgende: Die durch die Leitung 2 zugeführte Preßluft tritt in den Ringspalt 3' zwischen Kolben 3 und Zylinder I- ein und treibt den Arbeitskolben 3 durch Druck unter die Ringfläche 4' nach oben. Sobald die Ringfläche 4' die Schlitze 9 erreicht hat (Abb. 2), strömt Preßluft durch diese hind«rcli in den Raum 12 und aus diesem in den Kolben 3, 4. Da jetzt die größere Kolbenfläche ebenfalls unter Druck steht, schnellt der Kolben entgegen dem Widerstand der im Ringraum vorhandenen. unter die Ringfläche 4' drückenden Preßluft wieder nach unten. bis die im Kolben 3, 4 yorgesehenen Auspuffschlitze 6 aus dem unteren Ende der Laufbüchse heraustreten. Nunmehr kann die im Arbeitszylinder eingeschlossene Preßluft auspuffen. Im gleichen Augenblick gibt der Kolben die ihm inndwohnende lebendige Kraft an den Puffer I3 ab. Das Arbeitsspiel wiederholt sich dann von neuem. The operation of the device is as follows: By the line 2 supplied compressed air enters the annular gap 3 'between piston 3 and cylinder I- and drives the working piston 3 upwards by applying pressure under the annular surface 4 '. As soon as the annular surface 4 'has reached the slots 9 (Fig. 2), compressed air flows through this hinders into the space 12 and from there into the piston 3, 4. Now the larger one Piston surface is also under pressure, the piston shoots against the resistance those present in the annulus. under the annular surface 4 'pressing compressed air again downward. until the exhaust slots 6 provided in the piston 3, 4 emerge from the lower Step out from the end of the liner. Now the enclosed in the working cylinder Puff out compressed air. At the same moment the flask gives its own living power to the buffer I3. The work cycle then repeats itself again.

Die Verstellung des Solbenhubes kann in weiten Grenzen dadurch erfolgen, daß die Laufbüchse 7 im Zylindergehäuse 1 längs verschoben durch irgendwelche geeigneten Mittel, beispielsweise Verklemmung oder Verschraubung, in der eingestellten l.age festgehalten wird. The adjustment of the piston stroke can be made within wide limits by that the liner 7 in the cylinder housing 1 displaced longitudinally by any suitable Means, for example jamming or screwing, in the set position is being held.

Das Abfangen des Arbeitskolbens am oberen Ende des Hubes erfolgt durch den unter Federwirkung stehenden Puffer 10. The working piston is caught at the upper end of the stroke by the buffer 10, which is under spring action.

Claims (2)

PATENTANSPRÜCHE: 1. Vorrichtung zum Feststellen der Dauerschlagfestigkeit von schlagartig heanspruchten Teilen, insbesondere Schußwaffenteilen mit einem in dem A'rbeitszylinder zwischen Endpuffern schwingenden chlagkolben, dadurch gekennzeichnet, daß ein Teil der inneren Wand des Arbeitszvlinders von einem axial verschiebbaren Verlängerungskörper, z. B. einer Laufbüchse (7). gebildet wird, deren frei liegender Rand die am Schaft des Schlagkolbens (3, ) angeordneten Auspuffschlitze (6) steuert. PATENT CLAIMS: 1. Device for determining the continuous impact strength of suddenly stressed parts, especially gun parts with an in the working cylinder swinging between end buffers, characterized in that, that part of the inner wall of the Arbeitszvlinders by an axially displaceable Extension body, e.g. B. a liner (7). is formed whose exposed Edge controls the exhaust slots (6) on the shaft of the percussion piston (3,). 2. Vorrichtung nach Anspruch 1 mit einem zweistufigen Schlagkoblen, dadurch gekennzeichnet. daß die kleinere Schlagkolbenstufe (3) von der Laufbüchse (7) und die größere Schlagkolbenstufe (4) von der Innenfläche (1' des Arbeitszylinders (1) geführt wird. 2. Device according to claim 1 with a two-stage Schlagkoblen, characterized. that the smaller percussion piston step (3) from the liner (7) and the larger percussion piston step (4) from the inner surface (1 'of the working cylinder (1) is performed. Zur Abgrenzung des Anmeldungsgegenstandes vom Stand der Technik sind im Er-Teilungsverfahren keine Druckschriften in Be tracht gezogen worden. To distinguish the subject of the application from the state of the art are no publications were taken into account in the grant procedure.
DEM149877D 1941-02-09 1941-02-09 Device for determining the long-term impact resistance of suddenly stressed parts, in particular gun parts Expired DE741931C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM149877D DE741931C (en) 1941-02-09 1941-02-09 Device for determining the long-term impact resistance of suddenly stressed parts, in particular gun parts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM149877D DE741931C (en) 1941-02-09 1941-02-09 Device for determining the long-term impact resistance of suddenly stressed parts, in particular gun parts

Publications (1)

Publication Number Publication Date
DE741931C true DE741931C (en) 1944-12-15

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DEM149877D Expired DE741931C (en) 1941-02-09 1941-02-09 Device for determining the long-term impact resistance of suddenly stressed parts, in particular gun parts

Country Status (1)

Country Link
DE (1) DE741931C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102818734A (en) * 2012-08-03 2012-12-12 江苏大学 Vacuum high-speed emitter

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102818734A (en) * 2012-08-03 2012-12-12 江苏大学 Vacuum high-speed emitter
CN102818734B (en) * 2012-08-03 2014-09-03 江苏大学 Vacuum high-speed emitter

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