US3355213A - Mine roof supports and conveyors for use in conjunction therewith - Google Patents

Mine roof supports and conveyors for use in conjunction therewith Download PDF

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Publication number
US3355213A
US3355213A US507766A US50776665A US3355213A US 3355213 A US3355213 A US 3355213A US 507766 A US507766 A US 507766A US 50776665 A US50776665 A US 50776665A US 3355213 A US3355213 A US 3355213A
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US
United States
Prior art keywords
conveyor
support
face
roof
coal
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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
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US507766A
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English (en)
Inventor
Jeffrey W Seddon
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Gullick Ltd
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Gullick Ltd
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Filing date
Publication date
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Publication of US3355213A publication Critical patent/US3355213A/en
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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
    • E21D23/0052—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor with advancing shifting devices connected therewith
    • 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
    • E21C35/20—General features of equipment for removal of chippings, e.g. for loading on 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
    • E21D23/0047—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor without essential shifting devices
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
    • E21F13/00—Transport specially adapted to underground conditions
    • E21F13/08—Shifting conveyors or other transport devices from one location at the working face to another
    • E21F13/086—Armoured conveyors shifting devices

Definitions

  • a mine roof support including spaced apart rearward and forward roof-supporting units with respect to a mineral face to be mined, is used in combination with a conveyor which passes between said rearward and forward units and is advanceable therebetween towards the mineral face.
  • the support has pressure-fluid ram means operative, using the conveyor as a reaction means, to advance the support.
  • the conveyor has, on its foremost side, collecting means which directs cut material on the mine floor adjacent the mineral face into the conveyor as the latter is advanced towards the mineral face.
  • An object of the present invention is to allow the full use of a mechanised system of longwall mining and also give superior roof support by providing satisfactory support elements on the face side of the conveyor.
  • the invention is concerned with powered mine roof supports of the kind incorporating pressure-fluid ram means whereby the conveyor, which extends along the coal face and receives and carriers away the coal as it is cut from the face by the cutter or plough, is pushed towards the coal face progressively as cutting of the coal proceeds after which, using the conveyor as an anchorage, the ram means is operated so as to advance the support up to the conveyor.
  • a further object of the present invention is, therefore, to provide a mine roof support which provides for the location of a prop or support element between the conveyor and the coal face but which does not result in the just mentioned ditficulties.
  • a still further object of the invention is to provide a modified or improved form of convyor particularly suited for use with such a support.
  • the present invention provides the combination of a mine roof support, including spaced apart rearward and forward roof support units with respect to a mineral face to be mined, a conveyor passing between said rearward and forward support units and advanceable therebetween towards the mineral face, and pressure-fluid ram means operative, using the conveyor as a reaction means, to advance the support, said conveyor having on its fore most side collecting means which directs cut mineral on the mine floor adjacent the mineral face into the conveyor as the latter is advanced towards the mineral face.
  • the reference to foremost side of the conveyor is intended to mean the side which is nearest to the coal face.
  • the rear and forward support units or elements are connected at their upper parts by a roof-bar and at their lower ends by a base-plate, the conveyor being movably (e.g. slidably) supported on this base-plate and the rear unit or element embodying a hydraulic ram which, after a cut of the coal face has been made, first advances the support, using the conveyor as an anchorage, and then advances the conveyor up to the forward support unit or element.
  • the means on the foremost side of the conveyor for directing mate-rial into it is a ramp or ploughlike member and is hereinafter referred to as such.
  • This ramp or plough-like member facilitates advance of the conveyor, where the floor exposed by the cutting of a strip of coal from the face is rough, as well as serving, during such advance, to direct or load the cut coal onto the conveyor.
  • the ramp or plough-like member on the conveyor is interrupted at intervals along its length to permit it to be advanced beyond the forward support unit or element, i.e. beyond the forward prop line and right up to the mineral face so as to load the mineral onto the conveyor.
  • a secondary ramp or plough-like member may be pro vided on the conveyor, at said interruptions, to clear any obstruction between the conveyor and the forward prop or support unit during conveyor advance.
  • the above-mentioned ramp or plough-like member incorporates guide means which, when the conveyor and support have been advanced ready for a further cut of the coal face to be made, align with guide means on the forward support unit or prop so as to provide a guide for the cutting machine.
  • Means may also be provided on the support (e.g. on the forward end of a roof-bar carried by the forward support unit) for the carrying or suspension of power 3 cables, hose and the like which have to extend along the face.
  • FIGURE 1 is a side elevation of the support and an end vie-w of the conveyor and shows the support and conveyor in the position they occupy immediately prior to a cut being made on the coal face,
  • FIGURE 2 is a view similar to FIGURE 1 but shows the position of the support and conveyor in relation to the coal face after the out has been made,
  • FIGURE 3 is also a view similar to FIGURE 1 and shows the relative positions of the support, conveyor and coal face after the support has been advanced but prior to advance of the conveyor,
  • FIGURE 4 is a plan view of FIGURE 1 but with the roof-bar structure or canopy of the support removed, and
  • FIGURES 5 and 6 are detail fragmentary perspective views of the lower part of the forward support unit or prop and the adjacent portion of the conveyor.
  • the support comprises a rear support unit, having a base 10, hydraulically-extensible telescopic legs 11 mounted in said base and a roof-bar structure or canopy 12, and a forward unit having a single hydraulically-extensible telescopic leg or prop 13 mounted in a base 14.
  • a roof-bar 15 is pivotally connected to the canopy 12 at 16 and rests on the forward support unit 13.
  • the cylinder 17 of a double-acting hydraulic ram is secured (eg by means of laterally extending trunnions or other suitable means not shown) in the base of the rear unit, the piston rod or ram proper 18 of said ram being adapted for attachment, by means of a clevis 19 to the conveyor 20.
  • the props or legs 11 and 13 may be free to tilt or rock to a limited extent in the usual way in their base members 10 and 14 and the canopy 12 and roof-bar may be mounted on the upper parts of said legs or props by means of eoncave/ convex seatings (not shown) which is also the usual practice so as to permit the base members, hydraulic legs and roof members to accommodate themselves to any roughness or unevenness in the floor and roof.
  • the rear unit 10, 11, 12 and the forward unit 13, 14, 15 are connected together by a connecting-plate or base-plate 21 pivotally or hingedly attached to the base 10 as indicated at 22 and welded to the base 14.
  • the lower part of the base 14 of the forward unit is provided on its front side with a guide element 26 (see FIGURE 3) for a purpose hereinafter to be described.
  • the conveyor is accommodated between the rear and forward support units and is slidably mounted on the bottom connecting-plate or baseplate 21.
  • the conveyor 20 is provided on its side nearest the coal face F with a floor-engaging ramp or plough-like member 23 which extends longitudinally of the conveyor but is interrupted or set back at intervals, as indicated at 24 (see FIGURES 4, 5 and 6) so as to accommodate the base 14 of the forward support unit and allow the forward end of the ramp or plough 23 to project beyond the forward prop line.
  • the base 14 of the forward support leg 13 is of triangular form in plan so as to enter neatly into the interruptions or recesses 24 in the ramp or plough 23.
  • a secondary ramp means 25 is provided on the ramp or plough 23, in the vicinity of the interruptions or recesses 24, to clear any obstruction between the conveyor and prop during conveyor advance.
  • the ramp or plough 23 is provided with guide means 28 which, when the support and conveyor have been advanced up to the coal face, as shown in FIGURE 1, align with the guide means 26 to form a guide along the coal face for the plough or other cutting machine P which may conveniently be of the kind which cuts when it moves in one direction along the face and ploughs the coal onto the conveyor 20 when it moves in the opposite direction.
  • the roof-bar 15 carries a cable hanger 27 for supporting cables or service pipes which have to be carried along the coal face for the supply of electricity to the cutting machine and pressure-fluid to the supports and/or for other purposes.
  • the cutting machine then ploughs back to the stable and loads coal which has fallen onto the floor, during the cutting operation, into the conveyor 20.
  • the ramps 23 and 25 scrape the floor and base-plate 21 and assist in overcoming any obstruction and serve to guide or scoop material into the conveyor.
  • the ram 17, 18 is a single-acting ram and serves only for the purpose of advancing the support, the conveyor being advanced by double-acting ram means provided on other supports in the system, which latter supports may be as described above with reference to the accompanying drawings.
  • the conveyor could be advanced by other types of advancing devices, for example, a device consisting merely of a single-acting ram and a stell prop which, when secured between floor and roof, forms the reaction member against which the ram acts when advancing the conveyor.
  • a mine roof support including spaced apart rearward and forward roof support units with respect to a mineral face to be mined, a conveyor passing between said rearward and forward support units and advanceable therebetween towards the mineral face, and pressure-fluid ram means operative to advance the support, the improvement comprising collecting means on the foremost side of said conveyor for directing cut material on the mine floor adjacent the mineral face into said conveyor as the latter is advanced towards the mineral face.
  • said pressure-fluid ram means comprises a piston and cylinder one of which is connected to the roof support and the other to the conveyor whereby the ram is operative, using the conveyor as a reaction means, to advance the support and, using the support as a reaction means, to advance the conveyor.
  • a mine roof support including spaced apart rearward and forward support units with respect to a mineral face to be mined, a conveyor passing between said rearward and forward support units and advanceable therebetween towards the mineral face, and pressure-fluid ram means operative to advance the support
  • the improvement comprising collecting means on the foremost side of said conveyor for directing cut material on the mine floor adjacent the mineral face into said conveyor as the latter is advanced towards the mineral face, said forward support unit and the foremost side of the conveyor each being provided with guide means for a mineral cutting machine, said guide means being brought into vertical alignment with one another when the support and conveyor have been advanced in turn towards the mineral face.

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  • 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)
  • Excavating Of Shafts Or Tunnels (AREA)
  • Framework For Endless Conveyors (AREA)
US507766A 1964-11-26 1965-11-15 Mine roof supports and conveyors for use in conjunction therewith Expired - Lifetime US3355213A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48046/64A GB1056690A (en) 1964-11-26 1964-11-26 Improvements in or relating to mine roof supports and conveyors for use in conjunction therewith

Publications (1)

Publication Number Publication Date
US3355213A true US3355213A (en) 1967-11-28

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ID=10447163

Family Applications (1)

Application Number Title Priority Date Filing Date
US507766A Expired - Lifetime US3355213A (en) 1964-11-26 1965-11-15 Mine roof supports and conveyors for use in conjunction therewith

Country Status (6)

Country Link
US (1) US3355213A (xx)
BE (1) BE672639A (xx)
DE (1) DE1290906B (xx)
FR (1) FR1456178A (xx)
GB (1) GB1056690A (xx)
NL (1) NL6515404A (xx)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576110A (en) * 1969-05-14 1971-04-27 Gewerk Eisenhuette Westfalia Movable support assemblies for mineral mines
US4045087A (en) * 1974-09-07 1977-08-30 Cecil Vowe Peake Mining apparatus
US4064701A (en) * 1975-10-16 1977-12-27 Herman Hemscheidt Maschinenfabrik Hydraulic shield assembly
US7219786B1 (en) 2003-02-18 2007-05-22 Eric Sari Operator position adjustable production line machine
USRE46120E1 (en) 2003-02-18 2016-08-23 Eric Sari Operator position adjustable production line machine
CN110439601A (zh) * 2019-08-16 2019-11-12 郑州煤矿机械集团股份有限公司 具有传输功能的巷道支架
US10914170B2 (en) 2018-10-29 2021-02-09 Joy Global Underground Mining Llc Roof support connector

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1758970B1 (de) * 1968-09-10 1971-02-04 Bergwerksverband Gmbh Einrichtung fuer den Abbau floezartiger Lagerstaetten,insbesondere von Kohlenfloezen
DE3035423A1 (de) * 1980-09-19 1982-05-06 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Hydraulischer schreitausbau fuer untertaegige gewinnungsbetriebe
FR2539810B1 (fr) * 1983-01-25 1985-08-30 Manche Atel Chantiers Pile mobile de soutenement a lemniscate a embase en deux elements pouvant etre ripes independamment l'un de l'autre

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1180787A (fr) * 1956-08-10 1959-06-09 Steinkohlenbergbauver Dispositif pour l'exploitation de tailles par rabotage
DE1124445B (de) * 1958-11-13 1962-03-01 Korfmann Gmbh Maschf Am Foerdermittel befestigte Fuehrung fuer einen in beiden Richtungen schneidenden Bohrschraemlader
GB930026A (en) * 1960-10-07 1963-07-03 Gewerk Eisenhuette Westfalia Shiftable roof support and conveyor system for face galleries in mines
US3113763A (en) * 1959-12-31 1963-12-10 Wendt Arrangement for supplying energy to mining apparatus
US3137484A (en) * 1962-03-21 1964-06-16 Stamicarbon Face conveyor having coal plough guide means

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE942381C (de) * 1948-10-02 1956-05-03 Hermann Schwarz Kommanditgesel Verfahren und Einrichtung zum Ausbau von Abbaustreben
FR1302339A (fr) * 1961-10-05 1962-08-24 Gewerk Eisenhuette Westfalia Soutènement mobile utilisable notamment dans les mines
DE1867706U (de) * 1962-12-24 1963-02-21 Continental Gummi Werke Ag Vorrichtung zum uebertragen von zug- und druckkraeften.
FR1361408A (fr) * 1963-04-03 1964-05-22 Houilleres Bassin Du Nord Pile pour soutènement marchant
FR1370086A (fr) * 1963-07-09 1964-08-21 Houilleres Bassin Du Nord Perfectionnement apporté aux piles pour soutènement marchant

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1180787A (fr) * 1956-08-10 1959-06-09 Steinkohlenbergbauver Dispositif pour l'exploitation de tailles par rabotage
DE1124445B (de) * 1958-11-13 1962-03-01 Korfmann Gmbh Maschf Am Foerdermittel befestigte Fuehrung fuer einen in beiden Richtungen schneidenden Bohrschraemlader
US3113763A (en) * 1959-12-31 1963-12-10 Wendt Arrangement for supplying energy to mining apparatus
GB930026A (en) * 1960-10-07 1963-07-03 Gewerk Eisenhuette Westfalia Shiftable roof support and conveyor system for face galleries in mines
US3137484A (en) * 1962-03-21 1964-06-16 Stamicarbon Face conveyor having coal plough guide means

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3576110A (en) * 1969-05-14 1971-04-27 Gewerk Eisenhuette Westfalia Movable support assemblies for mineral mines
US4045087A (en) * 1974-09-07 1977-08-30 Cecil Vowe Peake Mining apparatus
US4064701A (en) * 1975-10-16 1977-12-27 Herman Hemscheidt Maschinenfabrik Hydraulic shield assembly
US7219786B1 (en) 2003-02-18 2007-05-22 Eric Sari Operator position adjustable production line machine
USRE46120E1 (en) 2003-02-18 2016-08-23 Eric Sari Operator position adjustable production line machine
US10914170B2 (en) 2018-10-29 2021-02-09 Joy Global Underground Mining Llc Roof support connector
CN110439601A (zh) * 2019-08-16 2019-11-12 郑州煤矿机械集团股份有限公司 具有传输功能的巷道支架

Also Published As

Publication number Publication date
GB1056690A (en) 1967-01-25
DE1290906B (de) 1969-03-20
NL6515404A (xx) 1966-05-27
BE672639A (xx) 1966-03-16
FR1456178A (fr) 1966-10-21

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