JPS57161298A - Control mechanism for oil pressure, especially, electric-oil pressure type support for underground coal mining - Google Patents

Control mechanism for oil pressure, especially, electric-oil pressure type support for underground coal mining

Info

Publication number
JPS57161298A
JPS57161298A JP57040969A JP4096982A JPS57161298A JP S57161298 A JPS57161298 A JP S57161298A JP 57040969 A JP57040969 A JP 57040969A JP 4096982 A JP4096982 A JP 4096982A JP S57161298 A JPS57161298 A JP S57161298A
Authority
JP
Japan
Prior art keywords
oil pressure
electric
control mechanism
type support
coal mining
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
JP57040969A
Other languages
Japanese (ja)
Inventor
Roozenberuku Harii
Uairitsuhi Uaruteru
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 JPS57161298A publication Critical patent/JPS57161298A/en
Pending legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
    • E21C35/08—Guiding the machine
    • E21C35/12—Guiding the machine along a conveyor for the cut material
    • E21C35/14—Equipment for pressing the conveyor towards the working face
    • 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

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)
  • Mechanical Engineering (AREA)
  • Fluid-Pressure Circuits (AREA)
  • Lining And Supports For Tunnels (AREA)
JP57040969A 1981-03-17 1982-03-17 Control mechanism for oil pressure, especially, electric-oil pressure type support for underground coal mining Pending JPS57161298A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19813110220 DE3110220A1 (en) 1981-03-17 1981-03-17 HYDRAULIC, ESPECIALLY ELECTRO-HYDRAULIC EXTENSION CONTROL FOR UNDERGROUND PROFITING COMPANIES

Publications (1)

Publication Number Publication Date
JPS57161298A true JPS57161298A (en) 1982-10-04

Family

ID=6127489

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57040969A Pending JPS57161298A (en) 1981-03-17 1982-03-17 Control mechanism for oil pressure, especially, electric-oil pressure type support for underground coal mining

Country Status (7)

Country Link
JP (1) JPS57161298A (en)
AU (1) AU544025B2 (en)
DE (1) DE3110220A1 (en)
ES (1) ES510539A0 (en)
FR (1) FR2502241B1 (en)
GB (1) GB2094864B (en)
ZA (1) ZA821609B (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3530657C2 (en) * 1985-08-28 1995-03-16 Westfalia Becorit Ind Tech Device for controlling hydraulic consumers used in underground mining
CN101205811B (en) * 2007-08-21 2010-12-22 哈尔滨工业大学深圳研究生院 Hydraulic bracket electrohydraulic control system as well as valve control device and control method thereof
PL2378059T3 (en) * 2010-04-16 2013-05-31 S A Armstrong Ltd Improvements in and relating to long wall hydraulic supply systems
CN103291342A (en) * 2013-06-17 2013-09-11 黄竹磬 Pipeline system capable of achieving hydraulic support long-distance liquid supply
CN107013246A (en) * 2017-05-26 2017-08-04 余之水 It is a kind of to prevent from unloading the emulsion power pack that pipe comes off
CN108999818A (en) * 2018-09-29 2018-12-14 宁波精壹机械制造有限公司 A kind of tunneling machine hydraulic system

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB961225A (en) * 1961-06-12 1964-06-17 Electro Hydraulics Ltd Hydraulically operated advancing roof support systems
GB1123975A (en) * 1964-10-12 1968-08-14 Dowty Electrics Ltd Hydraulically-operated advancing mine roof supports
DE1963353A1 (en) * 1969-12-18 1971-06-24 Gewerk Eisenhuette Westfalia Lift control of a return cylinder
DE2038661B2 (en) * 1970-08-04 1978-08-03 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Hydraulic extension control
DE2240607C3 (en) * 1972-08-18 1979-04-12 Robert Bosch Gmbh, 7000 Stuttgart Electro-hydraulic «control device
DE2258423C3 (en) * 1972-11-29 1980-11-13 Gewerkschaft Eisenhuette Westfalia, 4670 Luenen Device for backing the leadership of a mining machine or the like. for mining and extraction operations, with metered loading of the return cylinder
US3858606A (en) * 1973-08-23 1975-01-07 Ross Operating Valve Co Safety control valve system for fluid actuated devices
DE2558323C2 (en) * 1975-12-23 1981-03-12 Siemens AG, 1000 Berlin und 8000 München Device for the manual emergency shutdown of a conveyor belt in underground mining
DE2707630A1 (en) * 1977-02-23 1978-08-24 Orenstein & Koppel Ag ELECTRONICALLY CONTROLLED PIPE BREAKAGE PROTECTION
DE2749312C2 (en) * 1977-11-04 1984-12-20 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Control device with automatic repositioning for hydraulic ram removal
DE2756240C2 (en) * 1977-12-16 1985-12-19 Technomatic AG, Aesch, Luzern Safety valve for pressure medium-operated consumers
DE2832875C2 (en) * 1978-07-27 1985-11-07 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulic control for a gap covering and alignment device arranged on one side on the cap or on the fracture shield of an extension member

Also Published As

Publication number Publication date
ES8303604A1 (en) 1983-02-01
FR2502241A1 (en) 1982-09-24
AU8124482A (en) 1982-09-23
ZA821609B (en) 1983-01-26
DE3110220A1 (en) 1982-10-07
FR2502241B1 (en) 1987-05-07
GB2094864B (en) 1984-07-18
DE3110220C2 (en) 1989-06-08
AU544025B2 (en) 1985-05-16
ES510539A0 (en) 1983-02-01
GB2094864A (en) 1982-09-22

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