US3877752A - Plough for use in mineral mining - Google Patents

Plough for use in mineral mining Download PDF

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Publication number
US3877752A
US3877752A US406427A US40642773A US3877752A US 3877752 A US3877752 A US 3877752A US 406427 A US406427 A US 406427A US 40642773 A US40642773 A US 40642773A US 3877752 A US3877752 A US 3877752A
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US
United States
Prior art keywords
plough
cutters
main body
guide
guide members
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
US406427A
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English (en)
Inventor
Alois Hauschopp
Bernd Steinkuhl
Oswald Breuer
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
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
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Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
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Publication of US3877752A publication Critical patent/US3877752A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21C—MINING OR QUARRYING
    • E21C27/00—Machines which completely free the mineral from the seam
    • E21C27/20—Mineral freed by means not involving slitting
    • E21C27/32—Mineral freed by means not involving slitting by adjustable or non-adjustable planing means with or without loading arrangements
    • E21C27/34—Machine propelled along the working face by cable or chain

Definitions

  • ABSTRACT A coal plough having an articulated sword plate with a central section bearing a main plough body and end sections hinged to the central section and having guide blocks for reception in a guide channel of a longwall conveyor.
  • the main body has sets of cutters at its ends which are staggered in position.
  • Guide members which are curved in a convex sense in relation to the floor of the mine working are located for sliding in correspondingly-shaped guideways in the main body.
  • the guide members support floor cutters and the ends of the guide members can move along a path defined by the guideways projecting inwardly of the cutters relative to the body.
  • Cotter pins locate in selected holes in the body to delimit the movement of the guide members and thereby define the operating positions of the floor cutters.
  • the present invention relates to a plough for winning mineral from a mineral face or seam in a mine working.
  • the invention is particularly, but not solely, concerned with a plough for use in mining coal.
  • Coal ploughs are well known in the mining art. Such ploughs are normally guided for movement along a longwall conveyor arranged along the coal face or seam to be won.
  • a plough is described which utilizes floor-level cutters carried by arcuate-shaped movable guide members supported by the end sections of an articulated sword plate. These guide members can be moved into selected positions to set the floor-level cutters into various operation positions.
  • a general object of the invention is to provide an improved form of coal plough.
  • the present invention is particularly directed towards improvements in, or modifications to, the plough described in the aforementioned specification.
  • a plough for winning mineral from a mineral face; said plough having a main body with sets of cutters at or near each end for engaging the mineral face as the plough is moved along the face, floor-level cutters carried by guide members, the guide members being slidably displaceable in relation to said body to control the position of the floor-level cutters and along paths which extend inwardly of at least some of the cutters on the main body in relation to the body.
  • the plough of this invention is preferably provided with an articulated sword plate composed of three sections with the main plough body being disposed on the central section.
  • the guide members are provided on the central section of the sword plate and not on the end sections.
  • the overall length of the plough can thus be made considerably shorter and inter aliathis is advantageous in reducing wear where the plough is moved over a curved part of the longwall working.
  • the guide members and their paths of displacement are preferably arcuate in shape with a curvature which is convex in relation to the lower part of the plough.
  • the guide members can be conveniently located within guideways provided on the main body, the guideways and corresponding parts of the guide members having a T-shaped cross-section.
  • the cutters arranged in the Zone at the upper ends of the guide members preferably project outwardly from the body by a greater distance than the cutters therebeneath and can be supported by pivotable carriers.
  • the body can accordingly be of greater length in the region of the upper ends of the guide members.
  • each guide member In order to vary the operating position of the floorlevel cutter or cutters carried by each guide member it is preferable to provide a stop member, such as a cotter pin, engageable with the upper end of the guide member and locatable in one of a number of holes in the body, which are staggered in position.
  • a stop member such as a cotter pin
  • the main plough body can have a superstructure thereon composed of further bodies bearing cutting tools.
  • a roof-cutter head carrying cutting tools which is adjustable to enable the plough to cut the coal face or seam right up to the roof of the working.
  • the head has a guide portion located in a guideway of the uppermost further body, the guideway being inclined outwardly from the main body in a direction extending towards the lower part of the plough, the guide portion of the head being movable along the guideway to effect said adjustment. This enables the seam to be cut to a specific defined contour.
  • a cotter pin located in selectively-aligned holes in the guide portion of the head and the support body thereof can be used to secure the head in its desired position.
  • FIG. 1 is a plan view of a coal plough made in accordance with the invention
  • FIG. 2 is a plan view, of the central part of the plough shown in FIG. 1, but on a somewhat larger scale;
  • FIG. 3 is a side view of the plough shown in FIGS. 1 and 2, the view being taken from the coal face;
  • FIG. 4 is a diagrammatic end view of a modified coal plough made in accordance with the invention.
  • FIG. 5 is an enlarged side view of the roof cutter head of the plough represented in FIG. 4;
  • FIG. 6 is a sectional end view of part of the roof cutter head, the view being taken along the line Vl-VI of FIG. 5.
  • the plough has a sword or base plate composed of three parts, namely a central section 10 and end sections 12.
  • the central section 10 is pivotably connected to each end section 12 with the aid of hinges 11.
  • Each of the end sections 12 of the sword are provided with guide blocks 13 which in known manner are received and guided with a channel arranged at the goaf side of a longwall scraperchain conveyor (not shown).
  • the plough would then be disposed at the coal-face side of the conveyor with the sword extending beneath the conveyor.
  • the guide blocks 13, as shown, are connected to a chain also guided within the aforesaid channel and used to drive the plough back and forth along the conveyor to win the coal from the coal face.
  • the end sections 12 are also provided with adjustable devices 14 on the coalface side which limit the depth that the plough cuts into the coal face. Such devices 14 are well known per se.
  • the central section 10 of the sword supports the main plough body 15 provided with various coalcutting tools.
  • the body 15 is provided with sets of cutters 16 at each end. These cutters 16 are arranged in an echlon configuration with the cutting faces of the cutters 16 being disposed successively outwardly from the body 15 in a downward direction such as to leave a generallyy unobstructed trapezoidal space inwardly of the body.
  • Each cutter, l6 is a detachable item retained in a fixed tool holder.
  • tool carriers 17 which are pivotably connected to the body by means of a vertical pivot pin 18. These carriers 17 support further detachable cut ters denoted 19.-As shown in FIG.
  • the carriers 17 when the carriers 17 are swivelled towards the coal face the carriers 17 support the cutters 19 in a position considerably closer to the coal face than the cuttersl6.
  • the carriers 17 are each arranged to abut aganist a stop means formed on the main body 15 when the plough is moved in the direction causing the cutting face of the cutters 19 to penetrate the face as shown at the lefthand side of FIG. 2. If the plough is moved in the reverse direction the carrier 17 can swivel away from its associated stop means as shown at the right-hand side of FIG. 2.
  • each set of cutters 16 there are provided floor-level cutters 20 which serve to control the move ment of the plough along the coal face.
  • These floor cutters 20 at each end of the body 15 are detachably supported on a guide member 21 which is generally constructed in accordance with UK. patent specification 1,188,254. More particularly, eachguide member 21 is of arcuate shape having a convex curvature in relation to the floor of the working. The upper sides of the members 21 have a T-shaped profile denoted 23.
  • the body 15 is provided with members which extend across the space left within the body and define correspondingly curved guideways 22 receiving the members 21.
  • These guideways 22 have a T-shaped cross-section to match that of the upper side of the members 21.
  • the guide members 21 can be moved along the guideways 22 so as to swivel the cutters 20 in a vertical plane and about a pivot axis extending transversely of the plough body 15. In this way the cutters 20 can be adjusted to conform withthe level of the floor of the working can thereby to define the path taken by the plough.
  • the operating position of each member 21, and hence of its cutters 20, is set with the aid of stop members which limit the movement of the members 21.
  • These stop members take the form of cotter pins 24 which can be inserted into selected ones of groups of holes 25 in the plough body 15.
  • the holes 25 are arranged inwardly of the carriers 17 and, as shown in FIG.
  • each group of holes 25 is composed of four holes separated by small distances vertically and horizontally to enable the position of the cutters 20 to be adjusted in relatively small steps. Obviously, the numbers of holes canbe varied to provide more or less operating positionsfor the cutters 20.
  • the cotter pins 24 are inserted into the selected,
  • the body 15 is provided with hinged flaps 26 which can be moved over the cotter pins 24, as
  • the flaps 26 can be swivelled outwardly when it is desired to remove and re-locate the pins 24.
  • the plough body can also be provided with additional attachments with cutters designed to operate on various other parts of the coal face seam. In particular, it may be desirable to provide cutters which act at the roof or upper part of the seam.
  • FIGS. 4 to 6 depict such a plough construction.
  • the plough which is constructed generally as described above in connection with FIGS. 1 to 3, is provided witha superstructure built up from separate detachable bodies30 31, 32 disposed one upon another and carried by the main plough body.
  • the bodies 30, 31, 32 can be conveniently interconnected to one another by means of cot.
  • a roof cutter head 33 is supported by a further body, not shown in FIG. 4 but denoted by reference numeral 34 in FIG. 5.
  • This further body 34 is mounted on the body 32 and is again connected thereto by means of cotter pins or the like.
  • the head 33 is provided with a tool or blade 36, which is designed tocul at the roof of the seam, and with shearing tools 37, 38.
  • the head 33 has a guide portion which is located in a guideway 39 formed on the body 34 and the guideway the head 33 in its desired setting.
  • the guide portion of the head 37 and the body 34 are provided with a series of holes 40.
  • the holes 40 of the body 34 I penetrate the guideway 39 and the holes 40 of the body I 34 and the head 33 are arranged in two corresponding rows as shown in FIG. 6 with the holes of one row being offset from the holes of the other row.
  • a cotter pin 45 can be introduced from the goaf side of the body 34 to locate in corresponding selected holes 40 of the body 34 and the guide portion of the head 33.
  • the plough can firstly act on the face 37 with the aid of,
  • floor-level cutters carried by the guide members, said floor-level cutters being capable of adopting various operating positions depending on the movement of the guide members along said guide paths;
  • g. means for engaging the guide members to define a range of permitted movement along said guide paths for said members whereby to set the operating positions of the floor-level cutters.
  • each arcuate guide member is associated with a group of such bores, each at a respective different height from the ground.
  • a plough for winning mineral from a mineral face said plough having a main body with sets of cutters located at the ends of the main body for cutting the face as the plough is moved, adjustable floor-level cutters arranged on guide members which are slidably displaceable in relation to said body to control the position of the floor-level cutters and along paths which extend inwardly of at least some of the cutters on the main body in relation to the body, a superstructure assembled from further bodies disposed one upon another and arranged on the main body, the further bodies carrying further cutting tools.
  • the uppermost further body carrying a roof-cutter head having at least one cutting tool adapted to cut the mineral face at the upper part thereof, the roof-cutter head being adjustable in relation to the uppermost further body, said head having a guide portion located in a guideway of the uppermost further body, the guideway being inclined outwardly from the main body in a direction extending towards the lower part of the plough, the guide portion of the head being movable along the guideway to effect said adjustment.
  • a plough for winning mineral from a mineral face comprising:
  • a sword plate constituted by a plurality of articulated sections, one of which is a central section; b. a main body supported by the said central sword plate section;
  • each guide member being supported by a respective guideway
  • each guide member f. a structure associated with the upper end of each guide member, said structure being traversed by a plurality of bores extending perpendicularly to said face;
  • a pin positionable in a selected bore to limit the extent of movement of each guide member in its guideway.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Soil Working Implements (AREA)
  • Drilling And Exploitation, And Mining Machines And Methods (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
US406427A 1972-10-14 1973-10-15 Plough for use in mineral mining Expired - Lifetime US3877752A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2250535A DE2250535C3 (de) 1972-10-14 1972-10-14 Kohlenhobel

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US3877752A true US3877752A (en) 1975-04-15

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US406427A Expired - Lifetime US3877752A (en) 1972-10-14 1973-10-15 Plough for use in mineral mining

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US (1) US3877752A (fr)
BE (1) BE797799A (fr)
DE (1) DE2250535C3 (fr)
FR (1) FR2203018B2 (fr)
GB (1) GB1442831A (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035025A (en) * 1975-01-09 1977-07-12 Gewerkschaft Eisenhutte Westfalia Mineral winning ploughs
US4063781A (en) * 1975-03-06 1977-12-20 Gewerkschaft Eisenhutte Westfalia Apparatus for loading material
US4199194A (en) * 1978-02-06 1980-04-22 Gewerkschaft Eisenhutte Westfalia Control means for a coal plough
US4505518A (en) * 1982-07-06 1985-03-19 Gewerkschaft Eisenhutte Westfalia Mineral winning machines
US4708396A (en) * 1985-05-11 1987-11-24 Klockner-Becorit Gmbh Coal shaver
CN103410508A (zh) * 2013-07-09 2013-11-27 中煤张家口煤矿机械有限责任公司 一种刨煤机强制让刀装置
US8602502B2 (en) * 2011-12-19 2013-12-10 Joy Mm Delaware, Inc. Articulated shearer

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3222984A1 (de) * 1982-06-19 1983-12-22 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Gewinnungshobel mit hoehenverstellbarem firstmeisseltraeger
DE3223309A1 (de) * 1982-06-22 1983-12-22 Gewerkschaft Eisenhütte Westfalia, 4670 Lünen Vorrichtung zur verstellung eines exzenteranschlages fuer einen schwenkbaren werkzeugtraeger bei einem gewinnungshobel
DE3245792C1 (de) * 1982-12-10 1984-03-22 M.A.N. Maschinenfabrik Augsburg-Nürnberg AG, 4200 Oberhausen Zufuehrung der fluessigen Medien fuer eine mit Schwert versehene hydraulisch-mechanisch arbeitende Bergbau-Gewinnungsmaschine

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291531A (en) * 1963-02-02 1966-12-13 Gewerk Eisenhuette Westfalia Coal plane with adjustable floor cutters
US3361480A (en) * 1964-10-07 1968-01-02 Gewerk Eisenhuette Westfalia Vertically adjustable coal planer apparatus

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3291531A (en) * 1963-02-02 1966-12-13 Gewerk Eisenhuette Westfalia Coal plane with adjustable floor cutters
US3361480A (en) * 1964-10-07 1968-01-02 Gewerk Eisenhuette Westfalia Vertically adjustable coal planer apparatus

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4035025A (en) * 1975-01-09 1977-07-12 Gewerkschaft Eisenhutte Westfalia Mineral winning ploughs
US4063781A (en) * 1975-03-06 1977-12-20 Gewerkschaft Eisenhutte Westfalia Apparatus for loading material
US4199194A (en) * 1978-02-06 1980-04-22 Gewerkschaft Eisenhutte Westfalia Control means for a coal plough
US4505518A (en) * 1982-07-06 1985-03-19 Gewerkschaft Eisenhutte Westfalia Mineral winning machines
US4708396A (en) * 1985-05-11 1987-11-24 Klockner-Becorit Gmbh Coal shaver
US8602502B2 (en) * 2011-12-19 2013-12-10 Joy Mm Delaware, Inc. Articulated shearer
CN103410508A (zh) * 2013-07-09 2013-11-27 中煤张家口煤矿机械有限责任公司 一种刨煤机强制让刀装置

Also Published As

Publication number Publication date
GB1442831A (en) 1976-07-14
DE2250535C3 (de) 1980-12-18
FR2203018A2 (fr) 1974-05-10
BE797799A (fr) 1973-07-31
DE2250535A1 (de) 1974-04-18
DE2250535B2 (de) 1980-04-30
FR2203018B2 (fr) 1982-10-15

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