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DE1223791B - Hydraulic pit ram - Google Patents

Hydraulic pit ram

Info

Publication number
DE1223791B
DE1223791B DEG25214A DEG0025214A DE1223791B DE 1223791 B DE1223791 B DE 1223791B DE G25214 A DEG25214 A DE G25214A DE G0025214 A DEG0025214 A DE G0025214A DE 1223791 B DE1223791 B DE 1223791B
Authority
DE
Germany
Prior art keywords
ram
pit
pressure chamber
german
considered
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
DEG25214A
Other languages
German (de)
Inventor
Karl Gerlach
Dr-Ing Hans Gerlach
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.)
HANS GERLACH DR ING
Original Assignee
HANS GERLACH DR ING
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 HANS GERLACH DR ING filed Critical HANS GERLACH DR ING
Priority to DEG25214A priority Critical patent/DE1223791B/en
Publication of DE1223791B publication Critical patent/DE1223791B/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D15/00—Props; Chocks, e.g. made of flexible containers filled with backfilling material
    • E21D15/14—Telescopic props
    • E21D15/44—Hydraulic, 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)
  • Press Drives And Press Lines (AREA)

Description

Hydraulisch zu setzender Grubenstempel Die Erfindung bezieht sich auf hydraulisch zu setzende Grubenstempel mit einem Druckraum für das Ausfahren des Oberstempels aus dem Unterstempel und mit einem mechanischen Klemmschloß für das anschließende reibungsschlüssige Verspannen des Stempels. Bei Grubenstempeln dieser bekannten Art dient als Druckraum für das Ausfahren des Oberstempels aus dem Unterstempel der Innenraum entweder des Unterstempels oder des Oberstempels oder beider dieser Stempelteile. Stempel dieser Art hat man sowohl als reine hydraulische Stempel ausgebildet als auch als Klemmschloßstempel, bei denen dann lediglich das Ausfahren des Oberstempels auf pneumatischem oder hydraulischem Wege erfolgte und das Einsinken beim Rauben durch entsprechende Druckentlastung freigegeben wurde.Hydraulically set pit ram The invention relates on hydraulically set pit rams with a pressure space for the extension of the upper punch from the lower punch and with a mechanical clamping lock for the subsequent frictional clamping of the stamp. With pit stamps this known type serves as a pressure space for extending the upper ram the lower punch the interior of either the lower punch or the upper punch or both of these stamp parts. This type of stamp is available as a purely hydraulic one Stamp designed as a clamping lock stamp, in which then only the The upper ram was extended pneumatically or hydraulically and the sinking in during the robbery was released by appropriate pressure relief.

Die Erfindung hat sich zum Ziel gesetzt, die Setzarbeit derartiger Grubenstempel zu beschleunigen. Diese Aufgabe wird gemäß der Erfindung im wesentlichen dadurch gelöst, daß bei einem Grubenstempel der eingangs erwähnten Art der Druckraum im Unterstempel durch einen rohrförmigen Einsatz verkleinert und der Oberstempel in dem dadurch bedingten Ringraum geführt und vermittels eines Dichtungsringes an seinem unteren Rande abgedichtet ist. Durch die Erfindung wird der Füllraum für das Druckmedium verkleinert, dadurch wird an Druckmedium gespart und die Setzzeit entsprechend verkürzt.The invention has set itself the goal of setting work such Speed up pit ram. This object is essentially achieved according to the invention solved in that in a pit punch of the type mentioned above, the pressure chamber reduced in size in the lower punch by a tubular insert and the upper punch guided in the resulting annular space and by means of a sealing ring its lower edge is sealed. With the invention, the filling space for the print medium is reduced, thereby saving print medium and setting time shortened accordingly.

Durch den Vorschlag der Erfindung wird die Setzarbeit nicht nur wesentlich erleichtert und beschleunigt, sondern es wird vor allen Dingen die Möglichkeit geschaffen, auch bei durch ein Klemmschloß zusammengehaltenen Stempeln jeden Stempel unabhängig von einer manuellen und individuellen Tätigkeit den gleichen Anfangswiderstand zu geben und damit Reibungsstempel eine Eigenschaft zu verleihen, welche bisher nur für hydraulische Stempel erreicht werden konnte.With the proposal of the invention, the setting work is not only essential facilitated and accelerated, but above all the possibility is created even if the stamps are held together by a clamping lock, each stamp is independent manual and individual activity have the same initial resistance give and thus give friction stamps a property that previously only for hydraulic rams could be achieved.

Claims (1)

Patentanspruch: Hydraulisch zu setzender Grubenstempel mit einem Druckraum für das Ausfahren des Oberstempels aus dem Unterstempel und mit einem mechanischen Klemmschloß für das anschliessende reibungsschlüssige Verspannen des Stempels, dadurch gekennzeichnet, daß der Druckraum im Unterstempel durch einen rohrförmigen Einsatz verkleinert und der Oberstempel in dem dadurch bedingten Ringraum geführt und vermittels eines Dichtungsringes an seinem unteren Rande abgedichtet ist. In Betracht gezogene Druckschriften: Deutsche Patentschriften Nr. 922 043, 853 735, 714 079, 536 185, 460 809, 809 903; deutsche Auslegeschrift Nr. 1014 502. In Betracht gezogene ältere Patente: Deutsche Patente Nr. 1097 387, 1143172.Claim: Pit ram to be set hydraulically with a pressure chamber for extending the upper ram from the lower ram and with a mechanical clamping lock for the subsequent frictional clamping of the ram, characterized in that the pressure chamber in the lower ram is reduced by a tubular insert and the upper ram in the resulting one Annular space is guided and sealed by means of a sealing ring at its lower edge. Considered publications: German Patent Nos. 922 043, 853 735, 714 079, 536 185, 460 809, 809 903; German Auslegeschrift No. 1 014 502. Earlier patents considered: German Patents No. 1097 387, 1143172.
DEG25214A 1958-08-29 1958-08-29 Hydraulic pit ram Pending DE1223791B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEG25214A DE1223791B (en) 1958-08-29 1958-08-29 Hydraulic pit ram

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG25214A DE1223791B (en) 1958-08-29 1958-08-29 Hydraulic pit ram

Publications (1)

Publication Number Publication Date
DE1223791B true DE1223791B (en) 1966-09-01

Family

ID=7122604

Family Applications (1)

Application Number Title Priority Date Filing Date
DEG25214A Pending DE1223791B (en) 1958-08-29 1958-08-29 Hydraulic pit ram

Country Status (1)

Country Link
DE (1) DE1223791B (en)

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE460809C (en) * 1922-06-17 1928-06-07 Gertrud Gibbels Method for setting and recovering retractable pit punches
DE536185C (en) * 1928-05-25 1931-10-21 Steel Scaffolding Company Ltd Lifting and locking device for pull-out pit stamps, supports, struts, etc. like
DE714079C (en) * 1938-10-02 1941-11-21 Carl Tiefenthal Pit stamp
DE809903C (en) * 1948-08-25 1951-08-02 Mavor & Coulson Ltd Hydraulic ram for mining operations
DE853735C (en) * 1950-09-12 1952-10-27 Eugen Muething Hydraulic setting device for pit punch
DE922043C (en) * 1951-01-06 1955-01-07 Hermann Schwarz Kommanditgesel Two-part pit stamp
DE1014502B (en) * 1956-07-04 1957-08-29 Gutehoffnungshuette Sterkrade Device for setting a pit punch
DE1097387B (en) 1958-07-30 1961-01-19 Pleiger Maschf Paul Punch setting device
DE1143172B (en) 1957-12-30 1963-02-07 Karl Maria Groetschel Dipl Ing Pit ram to be set and clamped hydraulically

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE460809C (en) * 1922-06-17 1928-06-07 Gertrud Gibbels Method for setting and recovering retractable pit punches
DE536185C (en) * 1928-05-25 1931-10-21 Steel Scaffolding Company Ltd Lifting and locking device for pull-out pit stamps, supports, struts, etc. like
DE714079C (en) * 1938-10-02 1941-11-21 Carl Tiefenthal Pit stamp
DE809903C (en) * 1948-08-25 1951-08-02 Mavor & Coulson Ltd Hydraulic ram for mining operations
DE853735C (en) * 1950-09-12 1952-10-27 Eugen Muething Hydraulic setting device for pit punch
DE922043C (en) * 1951-01-06 1955-01-07 Hermann Schwarz Kommanditgesel Two-part pit stamp
DE1014502B (en) * 1956-07-04 1957-08-29 Gutehoffnungshuette Sterkrade Device for setting a pit punch
DE1143172B (en) 1957-12-30 1963-02-07 Karl Maria Groetschel Dipl Ing Pit ram to be set and clamped hydraulically
DE1097387B (en) 1958-07-30 1961-01-19 Pleiger Maschf Paul Punch setting device

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