ES482866A1 - Dispositivo de control hidraulico para un dispositivo de re-cubrimiento de grietas y de alineacion - Google Patents

Dispositivo de control hidraulico para un dispositivo de re-cubrimiento de grietas y de alineacion

Info

Publication number
ES482866A1
ES482866A1 ES482866A ES482866A ES482866A1 ES 482866 A1 ES482866 A1 ES 482866A1 ES 482866 A ES482866 A ES 482866A ES 482866 A ES482866 A ES 482866A ES 482866 A1 ES482866 A1 ES 482866A1
Authority
ES
Spain
Prior art keywords
hydraulic
pilot check
shield
control means
props
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
ES482866A
Other languages
English (en)
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.)
Gewerkschaft Eisenhutte Westfalia GmbH
Original Assignee
Gewerkschaft Eisenhutte Westfalia 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 Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of ES482866A1 publication Critical patent/ES482866A1/es
Expired legal-status Critical Current

Links

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)
  • Fluid-Pressure Circuits (AREA)
  • Actuator (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Earth Drilling (AREA)
  • Closing And Opening Devices For Wings, And Checks For Wings (AREA)

Abstract

Dispositivo de control hidráulico para un dispositivo de recubrimiento de grietas y de alineación, dispuesto por un solo lado en el casquete o en el escudo de derrumbamiento de un elemento de entibación, y que puede extenderse en dirección transversal al sentido de avance por medio de cilindros de grieta hidráulicos, habiéndose previsto para el control de los cilindros de grieta un dispositivo de válvulas de control y un dispositivo de válvula de pilotaje gobernado por la presión de la entibación de los puntales, caracterizado porque el dispositivo de válvulas de pilotaje (28) consta por lo menos de una válvula de bloqueo pilotada, que está conectada a la tubería (25, 27) que une el dispositivo de válvula de control (ST) con las cámaras de presión de los cilindros de grieta 16'', 16'''' 16"''), y que enclava hidraulicamente los cilindros de grieta durante el estado de desentibado del elemento de entibación que lleva el recubrimiento de grieta (S), pero que en estado de entibación de este elemento de entibación mantiene los cilindros tensores en posición flotante.
ES482866A 1978-07-27 1979-07-26 Dispositivo de control hidraulico para un dispositivo de re-cubrimiento de grietas y de alineacion Expired ES482866A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2832875A DE2832875C2 (de) 1978-07-27 1978-07-27 Hydraulische Steuerung für eine an der Kappe oder am Bruchschild eines Ausbaugliedes einseitig angeordnete Spaltabdeck- und Ausrichtvorrichtung

Publications (1)

Publication Number Publication Date
ES482866A1 true ES482866A1 (es) 1980-04-16

Family

ID=6045464

Family Applications (1)

Application Number Title Priority Date Filing Date
ES482866A Expired ES482866A1 (es) 1978-07-27 1979-07-26 Dispositivo de control hidraulico para un dispositivo de re-cubrimiento de grietas y de alineacion

Country Status (11)

Country Link
US (1) US4306822A (es)
AU (1) AU525349B2 (es)
CS (1) CS226710B2 (es)
DE (1) DE2832875C2 (es)
ES (1) ES482866A1 (es)
FR (1) FR2432084A1 (es)
GB (1) GB2026582B (es)
HU (1) HU182485B (es)
PL (1) PL120422B1 (es)
SU (1) SU948296A3 (es)
ZA (1) ZA793836B (es)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3110220A1 (de) * 1981-03-17 1982-10-07 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulische, insbesondere elektro-hydraulische ausbausteuerung fuer untertaegige gewinnungsbetriebe
US4432673A (en) * 1981-04-25 1984-02-21 Dowty Mining Equipment Limited Mine roof support
DE3237719A1 (de) * 1982-10-12 1984-04-12 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Einrichtung zur steuerung einer hangendkappe in abhaengigkeit einer schiebekappe
DE8318615U1 (de) * 1983-06-28 1983-11-03 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Richtzylinder fuer den schildausbau
DE102004017712B4 (de) * 2003-05-14 2019-05-09 Tiefenbach Control Systems Gmbh Hydrauliksteuerung für den Strebausbau
DE102011101087A1 (de) * 2010-05-13 2012-03-01 Tiefenbach Control Systems Gmbh Steuereinrichtung einer Ausbaueinheit im Streb eines Bergwerks
DE102010026977B4 (de) * 2010-07-13 2016-06-02 Marco Systemanaslyse Und Entwicklung Gmbh Verfahren zur Schildsteuerung

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2032208C3 (de) * 1970-06-30 1986-06-19 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulisch wandernde Ausbaugestelle
HU162717B (es) * 1971-03-05 1973-04-28
US3728863A (en) * 1971-09-14 1973-04-24 Gewerk Eisenhuette Westfalia Mine roof support assemblies
US3837170A (en) * 1972-03-06 1974-09-24 Banyaszati Kutato Intezet Sealing and position rectifying mechanism for shield supports
US4010618A (en) * 1974-01-19 1977-03-08 Dowty Mining Equipment Limited Mine roof support
GB1504883A (en) * 1974-06-04 1978-03-22 Gullick Dobson Ltd Mine roof supports
GB1516637A (en) * 1974-11-23 1978-07-05 Gullick Dobson Ltd Mine roof supports

Also Published As

Publication number Publication date
ZA793836B (en) 1980-08-27
PL217375A1 (es) 1980-04-08
FR2432084A1 (fr) 1980-02-22
AU4913179A (en) 1980-01-31
US4306822A (en) 1981-12-22
AU525349B2 (en) 1982-11-04
DE2832875A1 (de) 1980-02-14
SU948296A3 (ru) 1982-07-30
DE2832875C2 (de) 1985-11-07
CS226710B2 (en) 1984-04-16
HU182485B (en) 1984-01-30
FR2432084B1 (es) 1985-01-04
PL120422B1 (en) 1982-02-27
GB2026582B (en) 1982-05-12
GB2026582A (en) 1980-02-06

Similar Documents

Publication Publication Date Title
GB1514654A (en) Apparatus for controlling work element operating pressures in a fluid system
GB1469918A (en) Fast exhaust circuit for hydraulic jacks
ES482866A1 (es) Dispositivo de control hidraulico para un dispositivo de re-cubrimiento de grietas y de alineacion
GB967164A (en) Mine roof support systems
GB1160451A (en) Fixed Increment Advance of Face Conveyors
GB1485686A (en) Hydraulic system for a pipelayer
GB1221528A (en) Control arrangement for a hydraulic pit prop support unit
GB1515136A (en) Hydraulic control systems for use in mining installations
ES456463A1 (es) Un procedimiento y un dispositivo de mando para hacer avan- zar un escudo de cuchillas destinado a la construccion de galerias y tuneles o similares.
ES8207614A1 (es) Un mando sincronizador para los cilindros de cuchillas de doble accion
GB905379A (en) Improvements relating to hydraulic mine roof supporting devices
GB1517711A (en) Self-advancing mine roof supports
GB1228381A (es)
ES8203457A1 (es) Un dispositivo para gobernar los cilindros de cuchillas de un escudo de cuchillas
GB1069905A (en) Improvements relating to roof supports for mine workings
GB1287565A (en) Improvements in or relating to a self-advancing mine roof support
GB930838A (en) Improvements in or relating to roof supports for mines and the like
GB1155929A (en) Hydraulic Control System For Mine Roof Props
GB1194139A (en) Improvements in Hydraulically-Operated Supporting Devices for Mines
GB931097A (en) Improvements relating to mine supporting equipment
GB1168791A (en) Improvements relating to Roof Supports for Mine Workings
GB1233188A (es)
GB1001412A (en) Roof supports suitable for use in mines
GB1179758A (en) Hydraulic Mine Support Systems
GB1251968A (es)

Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 19970203