US3874734A - Advanceable support assembly with inclination control for longwall guide - Google Patents

Advanceable support assembly with inclination control for longwall guide Download PDF

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Publication number
US3874734A
US3874734A US378844A US37884473A US3874734A US 3874734 A US3874734 A US 3874734A US 378844 A US378844 A US 378844A US 37884473 A US37884473 A US 37884473A US 3874734 A US3874734 A US 3874734A
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United States
Prior art keywords
guide means
jack beam
assembly according
unit
floor member
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 - Lifetime
Application number
US378844A
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English (en)
Inventor
Lubomir Plevak
Egon Wojaczek
Harry Rosenberg
Kunibert Becker
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
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Gewerkschaft Eisenhutte Westfalia GmbH
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Publication of US3874734A publication Critical patent/US3874734A/en
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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
    • E21C35/125—Means for inclining the conveyor
    • 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
    • E21D23/0004—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face
    • E21D23/0034—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor along the working face comprising a goaf shield articulated to a base member
    • 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
    • E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
    • E21D23/0445—Extensions of the base member supporting the conveyor

Definitions

  • ABSTRACT An advanceable support assembly which has a hollow floor'rail which has therein a jack beam connected to the rail through a first piston and cylinder unit accommodated in the jack beam and operable to extend or retract the beam in a telescopic manner.
  • the jack beam is externally hinged to a guide which receives a longwall conveyor.
  • a second piston and cylinder unit coaxial with the first unit and accommodated in the jack beam is connected between the guide and the jack beam.
  • This second unit serves to adjust the inclination of the guide and hence of a coal plough or the likeguided thereon.
  • a further piston and cylinder unit is arranged in the rail coaxial with the first and second units and this further unit is coupled via a cranked arm to a roof bar which can be raised or lowered by operating this further unit.
  • the present invention relates to an advanceable support assembly for use in mine workings.
  • a variety of different types of support assembly are known in the mining art. Usually such assemblies are spaced apart along a working and connected through rams to a longwall scraper-chain conveyor so that, after the passage of a mining appliance, such as a coal plough, guided on the conveyor, the conveyor can be pushed forwards towards the mineral face and subsequently the support assemblies can be advanced up to the conveyor. Hydraulic props are provided on the assemblies to enable the assemblies to be braced between the roof and the floor of the mine working.
  • a general object of the present invention is to provide an improved support assembly which can be used with special advantage in fully mechanised mine workings.
  • an advanceable support assembly for use in mine workings; said assembly comprising a hollow floor member, a jack beam arranged in a telescopic manner within the floor member and connected to guide means for accommodating a conveyor, means for effecting relative movement between the floor member and the jack beam and means for adjusting the inclination of the guide means.
  • the floor means may have means for raising and lowering a roof-engaging bar which is in the form of a hydraulic piston and cylinder unit disposed within the floor member and operably connected to a crankedarm supporting the roof-engaging bar.
  • the guide means may have a trough-like crosssection to locate and receive the conveyor therein and a ramp-like portion on the side remote from the floor member, said portion serving to guide a mineral winning or loading appliance.
  • the jack beam is preferably slidably guided in the direction of advance and a hydraulic piston and cylinder unit may be disposed in the floor member to effect the relative movement between the floor member and the jack beam. This saves construction space and moreover ensures the unit is adequately protected.
  • the telescopic jack beam can then be extended or retracted by means of this unit, which is preferably disposed in a substantially horizontal position to effect advancement of the conveyor and the assembly.
  • the inclination of the guide means may be controlled by pivoting the jack beam and guide means together and providing a further hydraulic piston and cylinder unit to pivot the guide means relative to the jack beam.
  • This further unit may also be accommodated in the floor member and a particularly advantageous construction results from placing both the units in the jack beam in a coaxial manner and pivotably connecting the units between the floor member and the jack beam and between the jack beam and the guide means.
  • a particularly advantageous construction results from placing both the units in the jack beam in a coaxial manner and pivotably connecting the units between the floor member and the jack beam and between the jack beam and the guide means.
  • the guide means may have a wall at the goaf side adjacent the floor member which is pivotably connected at its upper end to the jack beam with the pivotal connection being disposed above the floor member.
  • This pivotal connection and that of the hydraulic units are preferably constructed to enable movement between the guide means and the jack beam longitudinally of the conveyor thereby enabling tensioning of the conveyor.
  • a tensioning unit may in fact be incorporated into the pivotal connection between the guide means and the jack beam.
  • the pivotal connection may be produced by a tube attached to the upper end of the goaf wall of the guide means and a curved portion of a flange secured to the jack beam.
  • the invention provides an advanceable support assembly for use in mine workings; said assembly comprising a hollow floor member; a jack beam arranged in telescopic manner within the floor member; means for effecting relative movement between the jack beam and the floor member; a hydraulic piston and cylinder unit disposed within the floor member and a cranked arm coupled to said unit and movable thereby to raise or lower a roof-engaging bar to selectively brace the assembly between the roof and floor of a mine working.
  • the invention provides an advanceable support assembly for use in mine workings; said assembly comprising, a hollow floor member; a jack beam arranged in telescopic manner within the floor member; guide means pivotably connected to the jack beam; means for effecting relative movement between the jack beam and the floor member and for effecting adjustment of the inclination of the guide means; and a cranked arm mounted for pivoting in relation to the floor members and supporting a roofengaging bar; and means within the floor member for pivoting the cranked arm to raise or lower said bar.
  • FIG. 1 is a diagrammatic sectional side view of an advanceable mine roof support assembly made in accordance with the invention.
  • FIG. 2 is an enlarged sectional side view of a modifled part of the assembly depicted in FIG. 1.
  • an advanceable mine roof support assembly has a hollow floor member or rail which normally rests on the floor of a mine working.
  • the member 10 At the end of the member 10 remote from a mineral face (not shown), i.e. at the goaf side, the member 10 is provided with an upstanding projection 11 formed with walls which taper inwards in the upward direction. This projection 11 accommodates a cranked arm 12 having inclined limbs 21 and 14. A horizontal pivot pin 13 is provided at the juncture between these limbs 21, 14 to pivot the arm 12 to the projection 11. The limb 14 of the arm 12 projects through a slot 15 at the upper side of the member 10 to terminate within the space 16 inside the member 10.
  • this limb 14 is pivotably connected at its end via a pivot pin 17 to a piston rod 18 of a doubleacting hydraulic piston and cylinder unit 19 mounted within the member 10.
  • the cylinder of the unit 19 is linked with a pivot pin 20 to the member 10.
  • the unit 19 is disposed in a substantially horizontal position and is protected by the member 10 and its projection 11.
  • the other limb 21 of the arm 12 would connect with a roof-engaging bar (not shown).
  • This bar may be of single or muIti-part construction and is preferably of sufficient length to engage the roof right up to the mineral face.
  • a telescopic structure generally denoted 22.
  • the structure 22 is composed of ajack beam 23 linked with one or more hinge components or connections to a guide means 24, hereinafter referred to simply as the guide 24.
  • the guide 24 in this construction has a trough-like cross-section and supports a longwall scraper-chain conveyor 31 therein.
  • the guide 24 has a ramplike guide portion 32 on the mineral face side which serves to support and guide a cutting or loading appliance such as a coal plough.
  • the guide 24 has a goafside wall 37 which has the hinge connections 25 at its upper end.
  • the beam 23 is hollow and is slidably disposed within the main floor member 10.
  • the beam 23 itself accommodates a double-acting piston and cylinder unit or ram 26 which serves to move the beam 23 outwardly from the member 10 and towards the mineral face, arrow P, in a reverse direction inwardly of the member 10.
  • the unit 26 is usable to effect shifting of the guide 24 and hence the conveyor 31 towards the face and when the roof engaging bar is removed from the roof the entire assembly can be moved up towards the conveyor 31 by operating the unit 26.
  • the unit 26 is disposed in a substantially horizontal position and is, as with the unit 19, well protected by the member 10.
  • the unit 26 has its cylinder pivotably connected with a pin 34 to a bracket or lug 27 formed on the inside of the beam 23.
  • the piston rod 28 of the unit 26 is coupled to a hinge connection 29 provided on a crosspiece 30 which serves to reinforce and stiffen the main member 10.
  • a further double-acting hydraulic piston and cylinder unit 33 is provided in the beam 23.
  • the unit 33 is coaxial and aligned with the unit 26.
  • the cylinder of the unit 33 is also pivotably connected to the pin 34 supported by the lug 27.
  • the unit 33 has a piston rod 35 which projects outwardly from the beam 23 and is coupled to a further hinge connection 36 provided on the wall 37 of the guide 24.
  • the unit 33 can be operated so that the piston rod 35 extends or retracts relative to the beam 23 to thereby swivel the guide 24 about the hinge connections 25. In this way the ramp portion 32 of the guide 24 can be moved, arrow S, to control the position of the appliance guided thereby.
  • the'unit 33 serves to control the position of the ramp portion 32
  • the unit 23 serves to effect shifting of the guide 24 and the assembly
  • the unit 19 serves to move the roof-engaging bar from the roof supporting position to a retracted position and vice versa.
  • hinge connections 25 between the guide 24 and the beam 23 are preferably constructed to allow the beam 23 and the guide 24 to move relative to one another in the longitudinal direction of the conveyor 31 and FIG. 2 depicts a form of hinge connection 25 which permits such movement.
  • a cylindrical tube 38 is attached to the wall 37 of the guide 24 and this tube 38 is partly surrounded by a claw-like curved end portion 39 of an upstanding flange connected to the beam 23.
  • this construction allows the relative displacement of the beam 23 and the guide 24 in the longitudinal direction of the conveyor 31.
  • the hinge connections 36 of the unit 33 also have to be 50 arranged so as to permit the movement between the beam 23 and the guide 24 and this can be achieved as depicted in FIG. 2 where the rod 35 has a ball at the end held captive, but displaceable, by a locating piece on the outside of the wall 37.
  • tensioning can be arranged in the same way as the known longwall installations where individual support assemblies are used as abutments for separate tensioning units.
  • tension units can be disposed between the individual beams 23 and guides 24 in such a way that each unit is coupled between the beam 23 and the guide 24 of each support assembly.
  • a particularly advantageous arrangement is to utilize these tensioning units as part of the hinge connections 25. This can be achieved by replacing the cylindrical tubes 38 with hydraulic tensioning units the cylinders of which are still embraced by the curved portions 39 as shown in FIG. 2. The piston rods of these tensioning units would be pivotably connected to the portions 39.
  • the units 33 also on or in the guides 24 instead of in the beams 23 and in this case the piston rods 35 of the units 33 would be pivotably connected to the beams 23.
  • the guide ramp 32 in such a way that it can swing in a vertical plane or be vertically adjustable in relation to the rest of the guide 24 and in this case such displacement may be effected by means of further hydraulic piston and cylinder units supported, for example, by the guides 24.
  • the beams 23 and the guides 24 it is possible for the beams 23 and the guides 24 to be rigidly connected to one another.
  • An advanceable support assembly for use in mine workings; said assembly comprising a. a hollow floor member; l
  • a second hydraulic piston and cylinder unit also disposed within the jack beam for adjusting the inclination of the guide means, the first and second units being arranged in a substantially horizontal position and coaxial with one another.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Geology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Structural Engineering (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Lining And Supports For Tunnels (AREA)
  • Machines For Laying And Maintaining Railways (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
US378844A 1972-07-13 1973-07-13 Advanceable support assembly with inclination control for longwall guide Expired - Lifetime US3874734A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2234452A DE2234452C2 (de) 1972-07-13 1972-07-13 Schreitendes Schildausbaugestell

Publications (1)

Publication Number Publication Date
US3874734A true US3874734A (en) 1975-04-01

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US378844A Expired - Lifetime US3874734A (en) 1972-07-13 1973-07-13 Advanceable support assembly with inclination control for longwall guide

Country Status (5)

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US (1) US3874734A (de)
JP (1) JPS5529240B2 (de)
DE (1) DE2234452C2 (de)
FR (1) FR2192240B1 (de)
GB (1) GB1426338A (de)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4030311A (en) * 1976-01-19 1977-06-21 Brown & Root, Inc. Method and apparatus for adjustably supporting a pipeline relative to a lay vessel
US4041715A (en) * 1975-09-09 1977-08-16 Klockner-Werke Ag Pit prop with liftable front end
US4045089A (en) * 1975-07-31 1977-08-30 Gewerkschaft Eisenhutte Westfalia Apparatus for controlling the position of a mining machine
US4082360A (en) * 1976-06-23 1978-04-04 Peabody Coal Company Mining apparatus and method
US4192632A (en) * 1977-07-16 1980-03-11 Gewerkschaft Eisenhutte Westfalia Support systems for mineral mining installations
DE2852305A1 (de) * 1978-12-02 1980-06-04 Bochumer Eisen Heintzmann Vorrichtung fuer den gesteuerten eingriff der werkzeuge einer gewinnungsmaschine
US4462637A (en) * 1980-12-13 1984-07-31 Gewerkschaft Eisenhutte Westfalia Control apparatus for inclination of longwall guide
CN101885414A (zh) * 2010-07-12 2010-11-17 三一重型装备有限公司 一种刮板输送机及其拉移机构

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2554554C3 (de) * 1975-12-04 1984-05-24 Klöckner-Becorit GmbH, 4620 Castrop-Rauxel Schildausbaueinheit für untertägige Strebbetriebe
DE2745446C2 (de) * 1977-10-08 1984-02-23 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Einrichtung zur Niveausteuerung einer Gewinnungsmaschine, insbesondere eines Hobels
DE2827397A1 (de) * 1978-06-22 1980-01-17 Gewerk Eisenhuette Westfalia Hobelanlage fuer untertaegige gewinnungsbetriebe
DE2904544C3 (de) * 1979-02-07 1989-07-20 Hermann Hemscheidt Maschinenfabrik Gmbh & Co, 5600 Wuppertal Rückvorrichtung für hydraulische Schildausbaugestelle
DE3008163C2 (de) * 1980-03-04 1983-12-15 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Aus einzelnen Grundplatten zusammengesetzte Leit- und Führungsbahn für Gewinnungsmaschinen und Strebförderer untertage
DE3109674A1 (de) * 1981-03-13 1982-09-23 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Antriebsstation eines mit einer abbaustossseitigen hobelfuehrung versehenen strebfoerderers

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276819A (en) * 1966-10-04 Backing arrangement
US3779023A (en) * 1971-12-01 1973-12-18 Rheinstahl Ag Shield roof support

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1150940B (de) * 1959-06-02 1963-07-04 Gewerk Eisenhuette Westfalia Rueckeinrichtung fuer Strebfoerderer
DE1877044U (de) * 1962-05-04 1963-08-08 Hubert Reiter Skipistenwalze mit motorantrieb und seilwinde mit einmannfahrerstand.
DE1167300B (de) * 1962-09-07 1964-04-09 Gewerk Eisenhuette Westfalia Druckmittelbetaetigte Rueckeinrichtung fuer Foerderer mit daran gefuehrtem Kohlenhobel
DE1989817U (de) * 1967-02-22 1968-07-25 Gewerk Eisenhuette Westfalia Fuehrungsschiene fuer einen kohlenhobel.
GB1204373A (en) * 1967-04-03 1970-09-09 Dowty Mining Equipment Ltd Conveyor advancing devices for use in mines
DE1902042A1 (de) * 1969-01-16 1970-08-20 Becorit Grubenausbau Mbh Wandernder Strebausbau fuer untertaegige Grubenbetriebe

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3276819A (en) * 1966-10-04 Backing arrangement
US3779023A (en) * 1971-12-01 1973-12-18 Rheinstahl Ag Shield roof support

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4045089A (en) * 1975-07-31 1977-08-30 Gewerkschaft Eisenhutte Westfalia Apparatus for controlling the position of a mining machine
US4041715A (en) * 1975-09-09 1977-08-16 Klockner-Werke Ag Pit prop with liftable front end
US4030311A (en) * 1976-01-19 1977-06-21 Brown & Root, Inc. Method and apparatus for adjustably supporting a pipeline relative to a lay vessel
US4082360A (en) * 1976-06-23 1978-04-04 Peabody Coal Company Mining apparatus and method
US4192632A (en) * 1977-07-16 1980-03-11 Gewerkschaft Eisenhutte Westfalia Support systems for mineral mining installations
DE2852305A1 (de) * 1978-12-02 1980-06-04 Bochumer Eisen Heintzmann Vorrichtung fuer den gesteuerten eingriff der werkzeuge einer gewinnungsmaschine
US4280734A (en) * 1978-12-02 1981-07-28 Bochumer Eisenhuette Heintzmann Gmbh & Co. Arrangement for controlled engagement of the tools of a mining machine with a mine face
US4462637A (en) * 1980-12-13 1984-07-31 Gewerkschaft Eisenhutte Westfalia Control apparatus for inclination of longwall guide
CN101885414A (zh) * 2010-07-12 2010-11-17 三一重型装备有限公司 一种刮板输送机及其拉移机构

Also Published As

Publication number Publication date
DE2234452A1 (de) 1974-01-31
JPS4937802A (de) 1974-04-08
FR2192240B1 (de) 1976-08-20
GB1426338A (en) 1976-02-25
DE2234452C2 (de) 1984-08-09
JPS5529240B2 (de) 1980-08-01
FR2192240A1 (de) 1974-02-08

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