GB1381303A - Hydraulic control system - Google Patents

Hydraulic control system

Info

Publication number
GB1381303A
GB1381303A GB3670871A GB3670871A GB1381303A GB 1381303 A GB1381303 A GB 1381303A GB 3670871 A GB3670871 A GB 3670871A GB 3670871 A GB3670871 A GB 3670871A GB 1381303 A GB1381303 A GB 1381303A
Authority
GB
United Kingdom
Prior art keywords
props
control
valve
ram
pressure medium
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
GB3670871A
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
Priority claimed from DE19702038661 external-priority patent/DE2038661B2/de
Priority claimed from DE19702038663 external-priority patent/DE2038663C3/de
Priority claimed from DE19702049869 external-priority patent/DE2049869C3/de
Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Publication of GB1381303A publication Critical patent/GB1381303A/en
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
    • 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
    • E21D23/006—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices
    • E21D23/0073—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor provided with essential hydraulic devices with advancing shifting devices connected therewith
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/8593—Systems
    • Y10T137/87096—Valves with separate, correlated, actuators
    • Y10T137/87121—Coaxial stems
    • Y10T137/87129—Rotary
    • Y10T137/87137—And reciprocating

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)
  • Multiple-Way Valves (AREA)
GB3670871A 1970-08-04 1971-08-04 Hydraulic control system Expired GB1381303A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19702038661 DE2038661B2 (de) 1970-08-04 1970-08-04 Hydraulische Ausbausteuerung
DE19702038663 DE2038663C3 (de) 1970-08-04 1970-08-04 Hydraulische Steuervorrichtung für rückbare Ausbaueinheiten in Form von Rahmen, Böcken u.dgl.
DE19702049869 DE2049869C3 (de) 1970-10-10 1970-10-10 Steuergerät, insbesondere für hydraulische Grubenausbaugespanne

Publications (1)

Publication Number Publication Date
GB1381303A true GB1381303A (en) 1975-01-22

Family

ID=27182794

Family Applications (1)

Application Number Title Priority Date Filing Date
GB3670871A Expired GB1381303A (en) 1970-08-04 1971-08-04 Hydraulic control system

Country Status (4)

Country Link
US (1) US3821880A (enrdf_load_stackoverflow)
GB (1) GB1381303A (enrdf_load_stackoverflow)
PL (1) PL73754B1 (enrdf_load_stackoverflow)
SU (1) SU797601A3 (enrdf_load_stackoverflow)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4159671A (en) * 1974-08-20 1979-07-03 Allen Archelaius D Self-advancing mine roof supports
GB1531246A (en) * 1975-07-29 1978-11-08 Gullick Dobson Ltd Mine roof support control systems
JPS53114704A (en) * 1977-02-28 1978-10-06 Taiheiyo Eng Operating device of selfftravelling frame* etc*
DE2733270C2 (de) * 1977-07-22 1984-07-19 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Ausbausteuerung für einen schreitenden hydraulischen Ausbau
DE2745631B1 (de) * 1977-10-11 1979-02-08 Hemscheidt Maschf Hermann Mehrfachsteuergeraet fuer hydraulischen Schreitausbau
DE2807431C2 (de) * 1978-02-22 1986-10-23 Bochumer Eisenhütte Heintzmann GmbH & Co, 4630 Bochum Steuereinrichtung für die mit einem hydraulischen Arbeitsmedium beaufschlagbaren Verbraucher eines Ausbaugestells im untertägigen Grubenausbau
DE3012883A1 (de) * 1980-04-02 1981-10-15 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Baueigene steuereinheit fuer elektrohydraulische ausbausteuerungen
DE3110854C2 (de) * 1981-03-20 1983-01-20 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Steuervorrichtung für eine Folgesteuerung von Schreitausbaugestellen
DE3206555A1 (de) * 1982-02-24 1983-09-01 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal 3/2-wegeventil
GB2142074B (en) * 1983-06-21 1987-04-23 Dobson Park Ind Control of mine roof supports
DE3825276A1 (de) * 1988-07-26 1990-04-05 Kloeckner Becorit Gmbh Verfahren und vorrichtung zum entlasten, ruecken und setzen eines schildausbaugestells
CN103256064B (zh) * 2013-05-14 2016-04-06 天地科技股份有限公司 一种放顶煤液压支架智能控制放煤方法
CN105178991B (zh) * 2015-09-18 2017-05-17 安徽宸瑞节能环保科技工程有限公司 一种矿用液压支撑装置

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2827924A (en) * 1952-03-15 1958-03-25 Electraulic Presses Ltd Control valves
US3002571A (en) * 1957-06-21 1961-10-03 Ford Motor Co Hydraulic system for tractors
US3228199A (en) * 1962-05-30 1966-01-11 Dowty Mining Equipment Ltd Mining apparatus
GB1065881A (en) * 1963-03-08 1967-04-19 Coal Ind Mine roof support remote control systems
GB1016061A (en) * 1963-04-04 1966-01-05 Dowty Technical Dev Ltd Mine roof support
DE1426480B2 (de) * 1964-09-18 1971-06-16 Dormer AG, 7990 Fnednchshafen Anlage fuer die steuerung hydraulischer stellmotoren
DE1201286B (de) * 1965-01-21 1965-09-23 Gewerk Eisenhuette Westfalia Rueckbarer hydraulischer Strebausbau
GB1164822A (en) * 1966-01-28 1969-09-24 Coal Industry Patents Ltd Improvements in the Control of Advanceable Conveyors used in Mines
US3451428A (en) * 1966-11-14 1969-06-24 J C Pemberton Multi-throw valve
FR1562062A (enrdf_load_stackoverflow) * 1967-02-02 1969-04-04
DE1277787B (de) * 1967-03-30 1968-09-19 Bergwerksverband Gmbh Einrichtung zur Zeitplansteuerung von hydraulischem Grubenausbau

Also Published As

Publication number Publication date
PL73754B1 (enrdf_load_stackoverflow) 1974-10-30
US3821880A (en) 1974-07-02
SU797601A3 (ru) 1981-01-15

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee