UA101865C2 - Control valve for shield support control system - Google Patents

Control valve for shield support control system

Info

Publication number
UA101865C2
UA101865C2 UAA201108794A UAA201108794A UA101865C2 UA 101865 C2 UA101865 C2 UA 101865C2 UA A201108794 A UAA201108794 A UA A201108794A UA A201108794 A UAA201108794 A UA A201108794A UA 101865 C2 UA101865 C2 UA 101865C2
Authority
UA
Ukraine
Prior art keywords
pressure
valve
shield support
outlet
pass channel
Prior art date
Application number
UAA201108794A
Other languages
Russian (ru)
Ukrainian (uk)
Inventor
Мартин РОЙТЕР
Original Assignee
Марко Зюстеманалюзе Унд Энтвиклюнг Гмбх
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 Марко Зюстеманалюзе Унд Энтвиклюнг Гмбх filed Critical Марко Зюстеманалюзе Унд Энтвиклюнг Гмбх
Publication of UA101865C2 publication Critical patent/UA101865C2/en

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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
    • E21D23/12—Control, e.g. using remote control
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH 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

Abstract

The invention relates to control of shield support at underground mining works at which section of shield support by means of at least one slot cylinder provided in zone of shield roofing and at least one pushing cylinder provided in zone of shield support is pushed from the neighboring section of shield support. At that overturn of shields with excess power of cylinders is possible. To restrict and to decrease pressure in cylinders, a control valve for the shield support control system is provided. It has body (10) of the valve with inlet (11) for high pressure (P), outlet (14) to re-circulation circuit (R) and outlet (12) for decreased hydraulic pressure (A). In the body (10) of the valve a loaded with controlled force of compressed spring (17) measuring piston (20) is installed, with pass channel (24’) between the outlet (12) for decreased hydraulic pressure (A) and outlet (14) to re-circulation circuit (R). Between the inlet (11) for high pressure (P) and the outlet (12) for decreased hydraulic pressure (A) in the body (10) a pass channel (39) is provided. The pass channel (24’) of the measuring piston (20) has seat (28), and the pass channel (39) has seat (38). Movable in axial direction needle (32) of the valve is placed coaxially with the piston (20) and the channels (24’), (39). It has two plates (30, 40) that come to the seats (28, 38), respectively, at that the axial distance between the seats (38, 28) in pressure-less state of valves is smaller compared to axial distance between the respective plates (40, 30) on the needle (32) of the valve. Measuring piston is loaded with controlled force of spring, with choosing the value of maximal pressure at which the measuring piston is opened and restricts hydraulic pressure. The invention prevents excess of pressure in cylinders and overturn of shields at extraction of minerals at seams laying with inclination.
UAA201108794A 2010-07-13 2011-07-12 Control valve for shield support control system UA101865C2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102010026977.8A DE102010026977B4 (en) 2010-07-13 2010-07-13 Method for shield control

Publications (1)

Publication Number Publication Date
UA101865C2 true UA101865C2 (en) 2013-05-13

Family

ID=45402740

Family Applications (2)

Application Number Title Priority Date Filing Date
UAA201213924A UA106290C2 (en) 2010-07-13 2011-07-12 Method for control of shield support
UAA201108794A UA101865C2 (en) 2010-07-13 2011-07-12 Control valve for shield support control system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
UAA201213924A UA106290C2 (en) 2010-07-13 2011-07-12 Method for control of shield support

Country Status (5)

Country Link
CN (1) CN102330561B (en)
DE (1) DE102010026977B4 (en)
PL (1) PL213628B1 (en)
RU (1) RU2477797C1 (en)
UA (2) UA106290C2 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015105922A1 (en) * 2015-04-17 2016-10-20 Marco Systemanalyse Und Entwicklung Gmbh valve assembly
WO2016205283A1 (en) * 2015-06-15 2016-12-22 Joy Mm Delaware, Inc. Systems and methods for monitoring longwall mine roof stability
RU2703582C2 (en) 2015-06-18 2019-10-21 Афл Лист Гмбх Longitudinally adjustable connecting rod
AT15426U1 (en) 2015-08-10 2017-08-15 Avl List Gmbh Reciprocating engine, in particular internal combustion engine
EP3390794B1 (en) 2015-12-14 2019-06-26 AVL List GmbH Length-adjustable connecting rod with electromagnetically-actuatable switching valve
AT519011B1 (en) 2016-05-31 2018-03-15 Avl List Gmbh reciprocating engine
DE102016008306A1 (en) 2016-07-06 2018-01-11 Avl List Gmbh Connecting rod with adjustable connecting rod length
AT519360B1 (en) 2017-02-24 2018-06-15 Avl List Gmbh Method for operating a reciprocating piston engine with at least one hydraulically length-adjustable connecting rod

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1205698A (en) * 1968-11-08 1970-09-16 Parker Hannifin Corp Pressure regulating valves
DE2700829C2 (en) * 1977-01-11 1986-04-17 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulic extension control
SU693028A1 (en) * 1977-02-15 1979-10-25 Oshchepkov Pavel D Power mine roof support for mining coal and filling-up excavated space
DE2803706A1 (en) * 1978-01-28 1979-08-02 Hebben Rolf Dipl Volksw Throttle for hydraulic mine roof support - has safety valve in form of movable plunger within piston set by variable spring
DE2808205C2 (en) * 1978-02-25 1985-10-10 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulic control for a gap cover arranged on the cap or on the breakage shield of a walking support
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
SU812982A1 (en) * 1978-10-12 1981-03-15 Дружковский Ордена Ленина Машиностроительныйзавод Имени 50-Летия Советскойукраины Apparatus for remote control of hydraulically driven roof support section
DE3024116C2 (en) * 1980-06-27 1985-02-14 Thyssen Industrie Ag, 4300 Essen Control device for walking support in underground mining
DE3316736A1 (en) * 1983-05-07 1984-11-08 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen SHUT-OFF VALVE DEVICE FOR HYDRAULIC HIGH PRESSURE SYSTEMS, IN PARTICULAR HYDRAULIC REMOVAL SYSTEMS IN MINING OPERATIONS
DE3402584C2 (en) * 1984-01-26 1986-06-12 Bochumer Eisenhütte Heintzmann GmbH & Co KG, 4630 Bochum Hydraulic synchronization control
DE3504553C1 (en) * 1985-02-11 1986-04-10 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Pressure switching valve as a pressure relief valve for hydraulic step extension
DE3931625C1 (en) * 1989-09-22 1990-08-09 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal, De Underground mine roof support - maintains constant residual pressure during advance
RU2078939C1 (en) * 1995-05-12 1997-05-10 Акционерное общество открытого типа "Подмосковный научно-исследовательский и проектно-конструкторский угольный институт" Device for transverse displacement and holding of base of powered support unit
RU2136888C1 (en) * 1998-02-10 1999-09-10 АО "Подмосковный научно-исследовательский и проектно-конструкторский угольный институт" Powered support for mining seams by chambers

Also Published As

Publication number Publication date
RU2477797C1 (en) 2013-03-20
PL395638A1 (en) 2012-01-16
DE102010026977B4 (en) 2016-06-02
CN102330561B (en) 2014-03-12
DE102010026977A1 (en) 2012-01-19
UA106290C2 (en) 2014-08-11
RU2011128978A (en) 2013-01-20
CN102330561A (en) 2012-01-25
PL213628B1 (en) 2013-04-30

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