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AT370501B - RUBBER AND / OR SET VALVE FOR HYDRAULIC STAMP - Google Patents

RUBBER AND / OR SET VALVE FOR HYDRAULIC STAMP

Info

Publication number
AT370501B
AT370501B AT55381A AT55381A AT370501B AT 370501 B AT370501 B AT 370501B AT 55381 A AT55381 A AT 55381A AT 55381 A AT55381 A AT 55381A AT 370501 B AT370501 B AT 370501B
Authority
AT
Austria
Prior art keywords
valve
rubber
set valve
slide
hydraulic stamp
Prior art date
Application number
AT55381A
Other languages
German (de)
Other versions
ATA55381A (en
Inventor
Gottfried Ing Siebenhofer
Reinhard Dipl Ing Neuper
Heinrich Ing Suessenbeck
Original Assignee
Voest Alpine 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 Voest Alpine Ag filed Critical Voest Alpine Ag
Priority to AT55381A priority Critical patent/AT370501B/en
Priority to CS82492A priority patent/CS243471B2/en
Priority to YU19082A priority patent/YU19082A/en
Publication of ATA55381A publication Critical patent/ATA55381A/en
Application granted granted Critical
Publication of AT370501B publication Critical patent/AT370501B/en

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
    • E21D15/50—Component parts or details of props
    • E21D15/51—Component parts or details of props specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves
    • E21D15/512—Arrangement of valves

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)
  • Lift Valve (AREA)
  • Safety Valves (AREA)

Description

  

   <Desc/Clms Page number 1> 
 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 
 EMI2.1 
 einen Kanal --15-- erfolgt der Rückfluss des hydraulischen Mediums in den Tank. 



   An den Ventilkegel --8-- ist ein Schieber -16-- angeschlossen, welcher in der Schliessstellung des Ventils Bohrungen --17-- in einem in das   Ventilgehäuse-l-eingeschraubten   Schieberspiegel --18-- abschliesst. Diese Bohrungen --17-- stehen über   Kanäle --19-- mit   dem Raum --20--, der über die Bohrung --14-- an dem Druckraum des Stempels angeschlossen ist, in Verbindung. 



   Wenn nun der Ventilkegel --8-- durch den   Stössel --6-- von   seinem Sitz abgehoben wird, überschleift die Kante --21--, welche den Übergang vom Ventilkegel --8-- zum Schieber --16-- bildet, die   Öffnungen --17-- im Schieberspiegel --18--.   Erst dann wird der Durchtritt des hydraulischen Mediums durch den Ventilsitz --10-- freigegeben. Hiebei wirkt aber der im Raum --20-und im Druckraum des Stempels auftretende Druck nur auf die kegeligen Flächen des Ventilkegels --8-- und wirkt daher nicht im Sinne eines Schliessens des Ventils. 



   Der Schieber --16-- ist im Schieberspiegel --18-- undicht geführt. An den Schieberspiegel ist ein abgeschlossener Raum --22-- angeschlossen. Die Druckflüssigkeit kann daher bei geschlossenem Ventil in diesen   Raum -22-- eindringen.   Beim Öffnen des Ventils taucht der Schieber --16-- in den Raum --22-- ein und verdrängt das hydraulische Medium aus diesem Raum --22-- über die   Öffnungen --17-- zurück,   wodurch das Öffnen des Ventils gedämpft erfolgt. 



   PATENTANSPRÜCHE : 
1. Raub- und/oder Setzventil für hydraulische Stempel, insbesondere Hohlstempel, für den Grubenausbau, mit einem durch eine Feder gegen einen Ventilsitz gedrückten Ventilkörper, der durch einen Stössel von seinem Sitz abhebbar ist, wobei diejenige Seite des Ventils, nach welcher der Ventilkörper vom Ventilsitz abhebbar ist, mit dem Druckraum des Stempels in Verbindung steht und wobei vorzugsweise der Stössel durch eine gesonderte Feder in Richtung vom Ventilkörper weg gedrückt ist, dadurch gekennzeichnet, dass der von einem Ventilkegel (8) gebildete Ventilkörper mit einem Schieber (16) versehen ist, der in der Schliessstellung wenigstens eine Durchtrittsöffnung im Schieberspiegel (18) abdeckt.



   <Desc / Clms Page number 1>
 
 EMI1.1
 

 <Desc / Clms Page number 2>

 
 EMI2.1
 the hydraulic medium flows back into the tank through a channel --15--.



   A valve -16-- is connected to the valve cone --8--, which, when the valve is closed, closes bores --17-- in a valve mirror -18-- screwed into the valve housing-l. These holes --17-- are connected via channels --19-- to the space --20--, which is connected to the pressure chamber of the stamp via the hole --14--.



   If the valve cone --8-- is lifted from its seat by the tappet --6--, the edge --21--, which forms the transition from the valve cone --8-- to the slide valve --16--, overrides , the openings --17-- in the sliding mirror --18--. Only then will the hydraulic medium pass through the valve seat --10--. However, the pressure occurring in the space --20 and in the pressure chamber of the plunger only acts on the conical surfaces of the valve cone --8-- and therefore does not act in the sense of closing the valve.



   The spool --16-- is leaking in the spool mirror --18--. A closed room --22-- is connected to the sliding mirror. The hydraulic fluid can therefore penetrate into this room -22-- when the valve is closed. When the valve is opened, the slide --16-- dips into space --22-- and displaces the hydraulic medium from this space --22-- back through openings --17--, which dampens the opening of the valve he follows.



   PATENT CLAIMS:
1. robbery and / or setting valve for hydraulic rams, in particular hollow rams, for pit work, with a valve body pressed by a spring against a valve seat, which can be lifted off its seat by a tappet, the side of the valve after which the valve body can be lifted off the valve seat, communicates with the pressure chamber of the plunger and the plunger is preferably pressed away from the valve body by a separate spring, characterized in that the valve body formed by a valve cone (8) is provided with a slide (16) which, in the closed position, covers at least one passage opening in the sliding mirror (18).

Claims (1)

2. Ventil nach Anspruch 1, dadurch gekennzeichnet, dass an den Schieberspiegel (18) ein abgeschlossener Raum (22) angeschlossen ist, in welchen der Schieber (16) bei geöffnetem Ventil eintaucht, und dass der Schieber im Schieberspiegel undicht geführt ist.  2. Valve according to claim 1, characterized in that a closed space (22) is connected to the slide mirror (18), in which the slide (16) is immersed when the valve is open, and that the slide is leaking in the slide mirror.
AT55381A 1981-02-06 1981-02-06 RUBBER AND / OR SET VALVE FOR HYDRAULIC STAMP AT370501B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
AT55381A AT370501B (en) 1981-02-06 1981-02-06 RUBBER AND / OR SET VALVE FOR HYDRAULIC STAMP
CS82492A CS243471B2 (en) 1981-02-06 1982-01-25 Hydraulic valve
YU19082A YU19082A (en) 1981-02-06 1982-01-27 Hidraulic valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT55381A AT370501B (en) 1981-02-06 1981-02-06 RUBBER AND / OR SET VALVE FOR HYDRAULIC STAMP

Publications (2)

Publication Number Publication Date
ATA55381A ATA55381A (en) 1982-08-15
AT370501B true AT370501B (en) 1983-04-11

Family

ID=3493655

Family Applications (1)

Application Number Title Priority Date Filing Date
AT55381A AT370501B (en) 1981-02-06 1981-02-06 RUBBER AND / OR SET VALVE FOR HYDRAULIC STAMP

Country Status (3)

Country Link
AT (1) AT370501B (en)
CS (1) CS243471B2 (en)
YU (1) YU19082A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002748A1 (en) * 1993-07-14 1995-01-26 Richard Voss Grubenausbau Gmbh Lining prop with an integrated pressure relief valve and nailed pipes

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995002748A1 (en) * 1993-07-14 1995-01-26 Richard Voss Grubenausbau Gmbh Lining prop with an integrated pressure relief valve and nailed pipes
US5611646A (en) * 1993-07-14 1997-03-18 Richard Voss Grubenausbau Gmbh Support prop with integrated pressure limiting valve and nailed pipes

Also Published As

Publication number Publication date
CS49282A2 (en) 1985-08-15
CS243471B2 (en) 1986-06-12
YU19082A (en) 1987-10-31
ATA55381A (en) 1982-08-15

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Legal Events

Date Code Title Description
ELJ Ceased due to non-payment of the annual fee
UEP Publication of translation of european patent specification
REN Ceased due to non-payment of the annual fee