ES8402396A1 - Perfeccionamientos en una valvula de maniobra especialmente para el control de entibaciones. - Google Patents
Perfeccionamientos en una valvula de maniobra especialmente para el control de entibaciones.Info
- Publication number
- ES8402396A1 ES8402396A1 ES521766A ES521766A ES8402396A1 ES 8402396 A1 ES8402396 A1 ES 8402396A1 ES 521766 A ES521766 A ES 521766A ES 521766 A ES521766 A ES 521766A ES 8402396 A1 ES8402396 A1 ES 8402396A1
- Authority
- ES
- Spain
- Prior art keywords
- hydraulic control
- mining apparatus
- cam shaft
- control devices
- cam
- 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
Links
- 238000005065 mining Methods 0.000 title abstract 2
- 241000282414 Homo sapiens Species 0.000 abstract 1
- 230000007935 neutral effect Effects 0.000 abstract 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/16—Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices
- E21D23/26—Hydraulic or pneumatic control
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanically-Actuated Valves (AREA)
- Valve Device For Special Equipments (AREA)
Abstract
DISPOSITIVO DE MANIOBRA, ESPECIALMENTE PARA EL CONTROL DE ENTIBACIONES. COMPRENDE UN EMBOLO (11) DOTADO DE UNA PUNTA CONICA (20) QUE PRESIONA CONTRA LA CURVA DE LEVA (10) DEL ARBOL DE LEVAS QUE CONMUTA LA VALVULA DISTRIBUIDORA (3). EL EMBOLO (11) VA GUIADO HERMETICAMENTE EN UN TALADRO (12) Y DIRIGIDO RADIALMENTE RESPECTO AL ARBOL DE LEVAS (6, 7), DURANTE CUYO ACCIONAMIENTO SE ABRE UNA VALVULA DE CIERRE (16) DISPUESTA EN UNA ALIMENTACION DE PRESION HIDRAULICA.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19823214920 DE3214920A1 (de) | 1982-04-22 | 1982-04-22 | Steuerventil mit totmannschaltung, insbesondere fuer die ausbausteuerung |
Publications (2)
Publication Number | Publication Date |
---|---|
ES521766A0 ES521766A0 (es) | 1984-01-16 |
ES8402396A1 true ES8402396A1 (es) | 1984-01-16 |
Family
ID=6161595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES521766A Expired ES8402396A1 (es) | 1982-04-22 | 1983-04-22 | Perfeccionamientos en una valvula de maniobra especialmente para el control de entibaciones. |
Country Status (7)
Country | Link |
---|---|
AU (1) | AU554692B2 (es) |
BE (1) | BE896506A (es) |
DE (1) | DE3214920A1 (es) |
ES (1) | ES8402396A1 (es) |
FR (1) | FR2525723B1 (es) |
GB (1) | GB2118689B (es) |
ZA (1) | ZA832626B (es) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3404302C1 (de) * | 1984-02-08 | 1985-06-05 | Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal | Steuervorrichtung fuer ein hydraulisches Schreitausbaugestell |
JPH07103938B2 (ja) * | 1990-01-31 | 1995-11-08 | 株式会社コスメック | 開弁機能付き逆止弁 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR1548341A (es) * | 1966-07-05 | 1968-12-06 | ||
DE2851937C2 (de) * | 1978-12-01 | 1986-05-28 | Gewerkschaft Eisenhütte Westfalia, 4670 Lünen | Steuerventil, insbesondere für einen hydraulischen Schreitausbau in Bergbaubetrieben |
-
1982
- 1982-04-22 DE DE19823214920 patent/DE3214920A1/de active Granted
-
1983
- 1983-04-12 AU AU13436/83A patent/AU554692B2/en not_active Ceased
- 1983-04-14 ZA ZA832626A patent/ZA832626B/xx unknown
- 1983-04-15 FR FR8306211A patent/FR2525723B1/fr not_active Expired
- 1983-04-18 GB GB08310412A patent/GB2118689B/en not_active Expired
- 1983-04-19 BE BE0/210586A patent/BE896506A/fr not_active IP Right Cessation
- 1983-04-22 ES ES521766A patent/ES8402396A1/es not_active Expired
Also Published As
Publication number | Publication date |
---|---|
ES521766A0 (es) | 1984-01-16 |
ZA832626B (en) | 1983-12-28 |
AU554692B2 (en) | 1986-08-28 |
DE3214920A1 (de) | 1983-10-27 |
AU1343683A (en) | 1983-10-27 |
DE3214920C2 (es) | 1990-08-30 |
GB8310412D0 (en) | 1983-05-25 |
GB2118689A (en) | 1983-11-02 |
BE896506A (fr) | 1983-08-16 |
FR2525723B1 (fr) | 1987-04-17 |
GB2118689B (en) | 1985-07-24 |
FR2525723A1 (fr) | 1983-10-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20010402 |