DE1127841B - Hydraulic pit ram - Google Patents

Hydraulic pit ram

Info

Publication number
DE1127841B
DE1127841B DEK42458A DEK0042458A DE1127841B DE 1127841 B DE1127841 B DE 1127841B DE K42458 A DEK42458 A DE K42458A DE K0042458 A DEK0042458 A DE K0042458A DE 1127841 B DE1127841 B DE 1127841B
Authority
DE
Germany
Prior art keywords
punch
hydraulic pit
ram
pit ram
hydraulic
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.)
Pending
Application number
DEK42458A
Other languages
German (de)
Inventor
Hermann Davids
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.)
Kronprinz GmbH
Original Assignee
Kronprinz 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 Kronprinz GmbH filed Critical Kronprinz GmbH
Priority to DEK42458A priority Critical patent/DE1127841B/en
Publication of DE1127841B publication Critical patent/DE1127841B/en
Pending legal-status Critical Current

Links

Classifications

    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21DSHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14Telescopic props
    • E21D15/44Hydraulic, pneumatic, or hydraulic-pneumatic props

Landscapes

  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Mounting, Exchange, And Manufacturing Of Dies (AREA)

Description

Hydraulischer Grubenstempel Die Erfindung betrifft einen hydraulischen Grubenstempel, der einen Innenstempel und einen ihm gegenüber axial geführten Außenstempel aufweist. Dabei ist der Innenstempel unten mit Fuß, der Außenstempel oben mit dem Kopf des Grubenstempels versehen.Hydraulic pit ram The invention relates to a hydraulic one Pit punch, the one inner punch and one opposite to it axially guided outer punch having. The inner stamp is at the bottom with the foot, the outer stamp is at the top with the Head of the pit stamp provided.

Die Erfindung besteht darin, daß am Innenstempel am Einsteckende und in einem geeigneten Abstand vom Einsteckende Führungsringe befestigt sind, die auf der Innenfläche des Außenstempels gleitend geführt sind. Durch diese Anordnung ändert sich der Abstand der -Führungsringe während der Hubbewegung des Grubenstempels nicht; die beiden gegeneinander verschiebbaren Teile erfahren also ständig die gleiche Abstützung gegeneinander. Außerdem liegen die Führungsringe bei jeder Hublänge im Außenstempel geschützt.The invention consists in that on the inner punch at the insertion end and at a suitable distance from the insertion end guide rings are attached, which on the inner surface of the outer punch are guided in a sliding manner. This arrangement changes the distance between the guide rings does not change during the lifting movement of the pit punch; the two mutually displaceable parts thus constantly experience the same thing Support against each other. In addition, the guide rings are in the Outside stamp protected.

In der Zeichnung ist eine Ausführungsform des Erfindungsgedankens dargestellt.In the drawing is an embodiment of the inventive concept shown.

Man erkennt das Gehäuse 1 des Kopfteiles mit dem Deckelteil 1 a und dem Bodenteil 1 b. Die Ausführung dieses Kopfteiles ist für die Erfindung ohne Bedeutung. Der Kopfteil sitzt auf dem Außenstempel 2. In diesem ist der Innenstempel 3 mit dem Bodenteil 3 a angeordnet. Auf dem Innenstempel 3 sind die Führungen 3 d und 3 e befestigt. Die Führung 3 d liegt am Einsteckende des Innenstempels, die Führung 3 e in einem geeigneten Abstand davon, der so groß bemessen ist, daß auch bei voll ausgezogenem Grubenstempel eine sichere Führung zwischen Außenstempel und Innenstempel gewährleistet ist. Die Führungen 3 d und 3 e gleiten auf der Innenfläche 2 b des Außen-Stempels. Am unteren Ende des Außenstempels kann eine Dichtung 2a vorgesehen sein.You can see the housing 1 of the head part with the cover part 1 a and the bottom part 1 b. The design of this head part is of no importance for the invention. The head part sits on the outer punch 2. The inner punch 3 is in this with the bottom part 3 a arranged. On the inner punch 3, the guides 3 d and 3 e attached. The guide 3 d is at the insertion end of the inner punch, the guide 3 e at a suitable distance from it, which is dimensioned so large that even when fully With the pit punch pulled out, a safe guide between the outer punch and the inner punch is guaranteed. The guides 3 d and 3 e slide on the inner surface 2 b of the Outside stamp. A seal 2a can be provided at the lower end of the outer die be.

Claims (1)

PATENTANSPRUCH: Hydraulischer Grubenstempel mit einem gegenüber dem Innenstempel axial verschiebbaren Außenstempel, dadurch gekennzeichnet, daß am Innenstempel am Einsteckende und in einem geeigneten Abstand vom Einsteckende Führungsringe befestigt sind, die auf der Innenfläche des Außenstempels gleitend geführt sind. In Betracht gezogene Druckschriften: Deutsche Patentschrift Nr. 934 342; britische Patentschrift Nr. 720 361; USA.-Patentschriften Nr. 2 474 464, 2 713 773.PATENT CLAIM: Hydraulic pit ram with one opposite the Inner punch axially displaceable outer punch, characterized in that on the inner punch Guide rings attached at the spigot end and at a suitable distance from the spigot end which are slidably guided on the inner surface of the outer punch. Into consideration Printed publications: German Patent No. 934 342; British patent specification No. 720 361; U.S. Patent Nos. 2,474,464, 2,713,773.
DEK42458A 1955-08-13 1955-08-13 Hydraulic pit ram Pending DE1127841B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK42458A DE1127841B (en) 1955-08-13 1955-08-13 Hydraulic pit ram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK42458A DE1127841B (en) 1955-08-13 1955-08-13 Hydraulic pit ram

Publications (1)

Publication Number Publication Date
DE1127841B true DE1127841B (en) 1962-04-19

Family

ID=7222763

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK42458A Pending DE1127841B (en) 1955-08-13 1955-08-13 Hydraulic pit ram

Country Status (1)

Country Link
DE (1) DE1127841B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474464A (en) * 1947-04-24 1949-06-28 Cable Richard George Pit prop and the like
GB720361A (en) * 1952-11-22 1954-12-15 Gullick Ltd Improvements in or relating to hydraulic pit props, hydraulic jacks and the like
US2713773A (en) * 1953-09-24 1955-07-26 Dowty Auto Units Ltd Hydraulic pit prop or jack
DE934342C (en) * 1954-06-27 1955-10-20 Gutehoffnungshuette Sterkrade Multi-part hydraulic pit ram

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2474464A (en) * 1947-04-24 1949-06-28 Cable Richard George Pit prop and the like
GB720361A (en) * 1952-11-22 1954-12-15 Gullick Ltd Improvements in or relating to hydraulic pit props, hydraulic jacks and the like
US2713773A (en) * 1953-09-24 1955-07-26 Dowty Auto Units Ltd Hydraulic pit prop or jack
DE934342C (en) * 1954-06-27 1955-10-20 Gutehoffnungshuette Sterkrade Multi-part hydraulic pit ram

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