DE408775C - Spring testing machine - Google Patents

Spring testing machine

Info

Publication number
DE408775C
DE408775C DEL59250D DEL0059250D DE408775C DE 408775 C DE408775 C DE 408775C DE L59250 D DEL59250 D DE L59250D DE L0059250 D DEL0059250 D DE L0059250D DE 408775 C DE408775 C DE 408775C
Authority
DE
Germany
Prior art keywords
testing machine
spring
spring testing
ram
plunger
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
DEL59250D
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.)
LINKE HOFMANN LAUCHHAMMER AG
Original Assignee
LINKE HOFMANN LAUCHHAMMER 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 LINKE HOFMANN LAUCHHAMMER AG filed Critical LINKE HOFMANN LAUCHHAMMER AG
Priority to DEL59250D priority Critical patent/DE408775C/en
Application granted granted Critical
Publication of DE408775C publication Critical patent/DE408775C/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0288—Springs
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2203/00—Investigating strength properties of solid materials by application of mechanical stress
    • G01N2203/02—Details not specific for a particular testing method
    • G01N2203/026—Specifications of the specimen
    • G01N2203/0288—Springs
    • G01N2203/029—Leaf spring

Landscapes

  • 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)
  • Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
  • Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)

Description

Federprüfmaschine. tDie bisherigen Prüfverfahren für Blattfedern der Eisenbahnfahrzeuge erstrecken sich nur auf Probebelastung und Durchbiegung. Da hierbei die stoßartigen. Bewegungsvorgänge, die beim Durchfahren der Schienenstöße eintreten, unberücksichtigt bleiben, ergeben sich häufig schon nach kurzem Gebrauch Federbrüche, selbst bei solchen Federn, die einer Probebelastung vollkommen standgehalten haben.Spring testing machine. tThe previous test methods for leaf springs from Railway vehicles only extend to test loading and deflection. Since here the jerky. Movement processes that occur when driving through the rail joints, are not taken into account, spring breaks often occur after only a short period of use, even with springs that have withstood a test load completely.

Den Gegenstand der Erfindung bildet eine Federprüfmaschine, bei welcher das Prüfungsverfahren nach folgenden Gesichtspunkten vor sich geht. Durch Anheben des Arbeitstisches wird die zu prüfende Feder auf die vorgeschriebene Durchbiegung gebracht und in. diesem Zustande eine bestimmte Zeitlang der Einwirkung eines Prüfstößels unterworfen, dessen Arbeitsvermögen und Schlagzahl etwa der durch die Schienenstöße hervorgerufenen Schwingung entspricht.The subject of the invention is a spring testing machine in which the examination procedure is based on the following criteria. By Raising the work table will bring the spring to be tested to the prescribed deflection brought and in this state for a certain period of time under the action of a test ram subject, its work capacity and number of strokes about that of the rail joints corresponds to the generated vibration.

Die Erfindung ist durch ein Ausführungsbeispiel auf der Zeichnung veranschaulicht,, worin Abb. i die Vorderansicht der Prüfmaschine, Abb. z die Seitenansicht und Abb. 3 den Schnitt A-B im Grundriß darstellt.The invention is illustrated by an embodiment in the drawing illustrates, where Fig. i is the front view of the testing machine, Fig. z is the side view and Fig. 3 shows section A-B in plan.

Die Feder u wird mit dem Arbeitstisch b beispielsweise durch die Schneckengetriebe c auf das erforderliche Maß gehoben und unter der üblichen Durchbiegungsprobe gegen den Stößel d gedrückt, dessen Hub durch das Handrad e verändert werden kann. Um jede gewünschte Härte im Arbeitsstoß des Stößels d auf die Feder a zu ermöglichen, kann der Stößel d derart verstellt werden, daß derselbe in erforderlicher Höhe aus dem Stößelkopf f hervortritt.The spring u is raised to the required level with the worktable b, for example by the worm gear c, and pressed against the plunger d under the usual deflection test, the stroke of which can be changed by the handwheel e. In order to enable any desired hardness in the working stroke of the ram d on the spring a, the ram d can be adjusted in such a way that it protrudes from the ram head f at the required height.

Es ergibt sich daher ein sanfter Stoß, wenn der Stößel d am Anfang seiner Hubbewegung, und ein harter Stoß, wenn dieser erst auf halbem Wege, also mixt größter Geschwindigkeit aus dem Stößelkopf austritt, um die Feder durchzubiegen. Der Motor g und die Scheibe Ia sind zwei mögliche Antriebsmittel; i, ist eine Spannrolle.There is therefore a gentle shock when the plunger d is at the beginning its lifting movement, and a hard push when this is only halfway, so mixes the highest speed exiting the ram head to bend the spring. The motor g and the disk Ia are two possible drive means; i, is a tensioner pulley.

Claims (1)

PATrNT-ANSPRUCII: Federprüfmaschine, gekennzeichnetdurcii einen nach Hub und Stoßkraft einstellbaren Stößel, der die vorgespannte Feder stoßweise ähnlich wie im Eisenbahnbetrieb beim Überfahren von Schienenstößen und Weichenkreuzungen zu beanspruchen vermag. PATrNT-ANSPRUCII: Spring testing machine, characterized by a plunger that can be adjusted according to stroke and impact force, which is able to load the pretensioned spring in bursts similar to that in railway operations when driving over rail joints and switch crossings.
DEL59250D 1924-01-13 1924-01-13 Spring testing machine Expired DE408775C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL59250D DE408775C (en) 1924-01-13 1924-01-13 Spring testing machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL59250D DE408775C (en) 1924-01-13 1924-01-13 Spring testing machine

Publications (1)

Publication Number Publication Date
DE408775C true DE408775C (en) 1925-01-27

Family

ID=7279782

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL59250D Expired DE408775C (en) 1924-01-13 1924-01-13 Spring testing machine

Country Status (1)

Country Link
DE (1) DE408775C (en)

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