US3382004A - Longwall mining machine, conveyor and traction cable arrangement - Google Patents

Longwall mining machine, conveyor and traction cable arrangement Download PDF

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Publication number
US3382004A
US3382004A US549337A US54933766A US3382004A US 3382004 A US3382004 A US 3382004A US 549337 A US549337 A US 549337A US 54933766 A US54933766 A US 54933766A US 3382004 A US3382004 A US 3382004A
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Prior art keywords
conveyor
lug
mining machine
bracket
runner
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US549337A
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English (en)
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Hauschopp Alois
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Gewerkschaft Eisenhutte Westfalia GmbH
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Gewerkschaft Eisenhutte Westfalia GmbH
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    • 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
    • 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

  • the present invention relates to a mining arrangement, and more particularly to such an arrangement including a mining conveyor and a mining machine, such as a planer, mounted with respect to the conveyor for displacement back and forth therealong, and longitudinally spaced apart individual bracket means, each containing a guide groove, and elongated axial composite guiding element means disposed on the mining machine for guiding coaction with such guide means to permit the mining machine to be displaced longitudinally back in extractive engagement with the mine face thereat, while avoiding difficulties in construction and operation heretofore encountered.
  • the planer especially one having a rearwardly extending keel underlying the conveyor, is provided with lug runner means which are guided in longitudinal guide grooves on the conveyor to stabilize the longitudinal path of movement of the planer while advantageously providing the tractive force to displace the planer longitudinally by the presence of traction cable means mounted on the side of the conveyor on which such lug runner means are disposed, with the forward and return strands of the traction cables being slidably received within channels or grooves, usually superimposed, at such side of the conveyor.
  • the conveyor is provided in the form of individual end-to-end arranged conveyor sections which are articul'atedly interconnected to permit some deviation from the normal longitudinal axis thereof whereby to accommodate unevenness in the mine fioor and to permit incremental advance of the conveyor toward the mine face as new layers thereof are progressively exposed.
  • the individual conveyor sections are provided with corresponding subchannel means for housing the drive cable which is used to displace the mining machine, with the appropriate subchannel means being correspondingly arranged in end-to-end disposition so that substantially no gap is permitted at the abutting portions of the subchannel means.
  • the prior art has utilized heretofore only articulatedly interconnected conveyor sections having subchannel means, usually on one side thereof, of equal length.
  • a mining arrangement including a mining conveyor and a mining machine, such as a planer, mounted with respect to the conveyor for displacement back and forth therealong, and longitudinally spaced apart individual bracket means, each containing a guide groove, and elongated axial composite guiding element means disposed on the mining machine for guiding coaction with such bracket means to permit the mining machine to be displaced longitudinally back and forth in extractive engagement with the mine face thereat.
  • FIG. 1 is a schematic end view of a mining arrangement including a mining conveyor and mining machine, in the form of a planer, in accordance with one embodiment of the present invention
  • FIG. 2 is a top schematic view of the embodiment shown in FIG. 1, illustrating details of the relationship between the bracket means and elongated axial composite guiding element means,
  • FIG. 3 is a longitudinal side view of an arrangement in accordance with the present invention similar to that of FIGS. 1 and 2, yet showing an alternate embodiment of the elongated axial composite guiding element means,
  • FIG. 4 is a schematic perspective view of another embodiment of the arrangement of mining machine and conveyor in accordance with the present invention, showing one of the hoods or cover elements in exploded disposition,
  • FIG. 5 is a schematic enlarged view partially in section, showing specific constructional details and the relationship of the lug runner means of the mining machine in the guide groove of the bracket means mounted on one side of the conveyor, in accordance with a further embodiment of the invention similar to that shown in FIG. 4, and
  • FIG. 6 is a perspective view of an alternate form of the hood or cover element usable to cover the distance between longitudinally spaced apart bracket means, in accordance with an optional feature of the invention.
  • a mining machine adapted to be displaced along an elongated guide means back and forth in a longitudinal path adjacent a mine face
  • a mining conveyor adapted to be disposed adjacent a mine face may now be provided, advantageously having longitudinal spaced apart bracket means mounted along one side thereof, each of which contains a guide groove for longitudinally guidingly receiving therethrough appropriate longitudinally aligned spaced apart lug runner means of a mining machine, adapted to be slidably displaced back and forth along said conveyor for operative engagement with such mine face for the extraction of mineral therefrom, and for guidingly receiving traction cable means adapted to be correspondingly connected to such lug runner means for displacing such mining machine thereby.
  • the present invention contemplates as well a mining arrangement advantageously including a mining conveyor adapted to be disposed adjacent a mine face and having longitudinally spaced apart bracket means mounted along one side thereof, each of which contains a guide groove, a mining machine, mounted on said conveyor for displacement back and forth therealong in a longitudinal path adjacent such mine face, and hav ing forward cutting means thereon for operatively engaging such mine face for the extraction of mineral therefrom as well as a pair of separate longitudinally aligned spaced apart lug runner means thereon positioned transversely rearwardly with respect to said cutting means, which lug runner means are longitudinally guidingly received through said guide grooves for stabilized guidance of the mining machine in relation to said longitudinal path, said lug runner means being adapted to be connected with the appropriate ends of the forward strand of a traction cable means used to displace such mining machine along said conveyor for extraction of mineral from the mine face and said guide grooves being further adapted to receive therethrough such forward strand of the traction cable means, and elongated
  • FIG. 1 shows a mining machine in the form of a mining planer 1, having a forward cutting tool In and a slide surface 1b rearwardly of the cutting tool 1a for slidably engaging the side wall 4 of a mining conveyor 3, and with the swordplate or keel 2 slidably underlying the conveyor 3 to stabilize the positioning of the planer 1 with respect to the mine face adjacent thereto and with which the cutting tool 1a is in extractive engagement during normal mining operations.
  • the mining conveyor 3 is provided with the side walls 4 and 5 whereby suitable scraper chain means may be employed in conjunction with transverse spaced apart scraper bars for the removal of extracted mineral disposed on the conveyor from the site of mining operations.
  • Conveyors of the type in question are generally well known, as may be appreciated from the aforementioned US. patents.
  • Such conveyors are usually in the form of individual conveyor sections articulatedly connected to one another in end-to-end disposition whereby to accommodate unevenness in the mine floor and deviations from the normal longitudinal path of movement of the planer 1 with respect to the mine face being worked.
  • an upright bounce plate or retaining plate 6 is provided on the side wall 5 of conveyor 3 remote from the mine face (not shown).
  • the bounce plate 6 is also of benefit in increasing the capacity of the trough of conveyor 3.
  • a hawser bracket or upright three-armed member 7 of E-shaped cross section having the upper flange or arm 8, the middle fiange or arm 9, and the lower flange or arm 10, which define, with the adjacent portion of bounce plate 6, an upper channel 11 and a lower channel 12, preferably in superimposed disposition.
  • the lower flange 10 is spaced from the marginal portion of the underside of conveyor 3 at side wall 5 and the lower portion of such side wall 5 whereby to form a longitudinal slit 13 within which the appropriate separate longitudinally aligned spaced apart lug runners 14 may be guidingly received.
  • lower channel 12 may be considered a guide groove having a slit 13 therealong between the lower arm or flange l0 and the marginal portion at the corner of the underside and remote side wall 5 of the conveyor.
  • the rearwardly extending stabilizer keel 2 of the mining machine shown is advantageously connected with at least two separate lug runners 14 such that the appropriate end of the forward strand 16 of a drive chain or other traction cable means may be connected correspondingly to the particular lug runner.
  • the return strand 15 of the drive chain is slidably received in the upper channel 11 in the usual manner, with the ends of the drive chain being looped over drive sprocket wheels or drums, or the like, in order to achieve the reciprocal movement of the drive chain and, in turn, of the mining machine back and forth along the mine face in guiding association with guide means shown in the form of a mining conveyor.
  • planer need not be utilized with a mining conveyor of the type shown and that the mining conveyor may be used with a different type of mining machine, without departing from the concept of the present invention, which in its broadest aspects concerns a cooperative association between a mining machine and a guide means therefor, regardless of the particular type, wherein the traction cable means for the mining machine is appropriately guided via individual longitudinally spaced apart guide grooves mounted along the guide means, e.g.
  • the mining machine shown in the form of a planer '1 having the cutting tool 1a and the slide surface 111 is provided in effect with a very broad stabilizer keel 2 underlying conveyor 3, such conveyor being in the form of individual articulatedly interconnected sections 3a, each having a side wall 4 adjacent the mine face and a side wall 5 remote from such mine face, preferably with a bounce plate 6 being mounted on the latter side wall as shown.
  • the mining machine may be provided with separate hingedly interconnected keel sections of the type disclosed in the aforementioned US. Patent 3,164,412, so as to negotiate more readily unevenness in the minor floor.
  • each conveyor section 3a is provided, in the embodiment shown, with only two such upright brackets 7, each in turn having an upper channel ill and a lower channel 12 as well as an accompanying slit :13 through which the appropriate portion of the keel 2 is inserted into the given lower channel 12 for maintaining the particular lug runner 14 in guiding associa tion with the guide groove defined at the lower portion of bracket 7 in the vicinity of lower channel 1 2 and the marginal portion of the underside of conveyor 3 and the lower end of side wall 5, whereby to form the slit 13.
  • Such reinforcing cable interconnects the lug runners 14 to relieve the opposing stresses placed on such runners by the pulling force of the traction cable means and considering the tortuous path which the mining machine and the guiding means therefor, such as a conveyor, must negotiate under various mining conditions, the guiding element means 19 of the invention are of great value.
  • the lug runners 14' are provided with an interconnecting resilient reinforcing bar shown schematically at 14a on which tandemly positioned tubular beadst19a are: strung in the same manner as the beads 19 are strung on the reinforcing cable (not shown) between the lug runners 14 of FIG. 2.
  • an interconnecting resilient reinforcing bar shown schematically at 14a on which tandemly positioned tubular beadst19a are: strung in the same manner as the beads 19 are strung on the reinforcing cable (not shown) between the lug runners 14 of FIG. 2.
  • the particular reinforcing cable or resilient reinforcing bar in any angular position between appropriate conveyor sections 3a, either with respect to the vertical or with respect to the horizontal, will accommodate deviations in the normal longitudinal path and will be maintained by the chain guide means in the form of guide beads 19 or 1911, or the like, in suitable disposition for discontinuous guidance within the guide grooves of the longitudina spaced apart brackets 7.
  • appropriate longitudinal elongated slots 17 are defined in the bounce plate 6.
  • the particular bracket 7 is connected by suitable means with the appr priate side wall 5 on the opposite side of bounce plate 6 through such slot 17 whereby upon loosening the connection in question, the bracket 7 may be moved along slot 17 in the desired direction to achieve the longitudinal adjustment sought.
  • the particular beads 19 or 19a may be disposed on the end portions of the given forward strand 16 of the drive chain adjacent the connection thereof to the corresponding lug runners 14 or 14.
  • the end portions of lug runners 14' to which the ends of the forward strand 16 of the drive chain are normally connected may be provided with an inter-posed resilient reinforcing sub-bar (not shown) extending longitudinally outwardly from the appropriate lug runner 14 and upon which are mounted tubular beads 19a.
  • suitable tubular beads 19a are provided on the portion of the traction cable means in the form of such subbar or such forward strand, where by preliminary guidance will be achieved of the drive cable means as it passes from one bracket 7 to the next so that the given lug runner 14 and 14 will be guided at the guide groove formed at the slit 13 of the lower channel 12 without jamming and without excessive wear on the parts meant to be in sliding contact with one another continuously or discontinuously, as the case may be.
  • FIGURE 4 a further embodiment of the invention is shown, in which the planar having the cutting tool 20a and the slide surface 20b as well as the upstanding stabilizer studs 21, is disposed in slidable guiding contact with the conveyor 23 having the side walls 24 and 25 as well as the upright bounce plate 26 of analogous construction and relationship with respect to the arrangements shown in the embodiments of FIGS. 1 to 2 and FIG. 3.
  • the keel 22 of the planer underlies the conveyor 23, extending rearwardly from the cutting tools 20a and the studs 21, whereby the separate longitudinally aligned spaced apart lug runners 34 may be disposed with chain 39 on that side of conveyor 23 outwardly of the given bounce plate 26.
  • the individual spaced apart brackets 27 similar to brackets 7 in the embodiments of FIGS.
  • each bracket 27 having upper flange or arm 28, a middle flange or arm 29, and a lower flange or arm 30, whereby to form an upper channel 31 for the return strand 35 of the traction cable means in the form of a drive chain and a lower channel 32 to accommodate the forward strand 36 of such traction cable means or drive chain.
  • a slit 33 is provided between the lower arm 34) of a given bracket 27 and an appropriate marginal portion of the underside between the conveyor 23 and the lower portion of the side wall 25 and/or the bounce plate 26 thereat.
  • a longitudinal slot 37 is provided in the bounce plate 26 adjacent the portion thereof where a particular bracket 27 is to be situated.
  • bracket 27 by suitable connection of a bolt or other connecting means (not shown) through the appropriate apertures 41 in bracket 27 and extending through the particular middle arm 29 and slot 37 to the opposite side of bounce plate 26, the bracket may be loosened and in turn tightened to permit longitudinal shifting of such bracket to attain the desired longitudinal displacement.
  • a bolt or other connecting means (not shown)
  • the brackets 27 in addition to the brackets 27, the longitudinal space therebetween may be provided optionally with covers or hoods 48.
  • Hoods 48 are dimensioned to extend between adjacent brackets 27 and are provided with a suitable profile permitting the desired coverage and with suitable latch elements 47 positioned on the adjacent ends of the hoods 48 to attain inserting engagement through the latch openings 40 of the ears 38 disposed on the outer surface of brackets 27.
  • a suitable pivotal mounting element 49 is disposed on the outward side of the appropriate bracket 27 in order to accommodate thereat an advancing means (not shown) commonly used in the form of a piston-cylinder means appropriately reinforced against rearward transverse travel whereby to force in the forward transverse direction not only the conveyor but also the mining machine associated therewith, shown in the particular embodiment as a mining planer.
  • advancing means commonly used in the form of a piston-cylinder means appropriately reinforced against rearward transverse travel whereby to force in the forward transverse direction not only the conveyor but also the mining machine associated therewith, shown in the particular embodiment as a mining planer.
  • Various advancing means are known to attain the advancing in question and besides simple advancing means constructions which are connected with the conveyor assembly, more elaborate systems may be used, such as mining prop arrangements having appropriate advancing means associated therewith to achieve the desired step-by-step or continuous advancement of the arrangement.
  • Such means are shown, for instance, in US. Patent 3,192,722.
  • bracket 27' is provided with an outwardly directed vertically extending reinforcing rim or spine 38 at each longitudinal edge, and in such spine the appropriate latch openings 40 are defined to accommodate corresponding latch elements for an interposed hood of the type contemplated in the embodiment of FIG. 4.
  • An aperture 41 is also provided in bracket 27' to permit the bolt 42' to be inserted through the middle arm 29 and the longitudinally extending slot 37 of the bounce plate 26 into the V-shaped recess 44 defined at the central portion of side wall 25 in view of the appropriate configuration of the cross-section of the conveyor 23 illustrated.
  • a connecting seat 43' is disposed in the recess 44, in the form of a nut into which the appropriate end of the bolt 42' is operatively inserted.
  • the opposite threaded end 45 of bolt 42' extends outwardly through the aperture 41 and is capped by a nut 46' or suitable releasable connecting means so that upon release thereof, the bolt 42' may be displaced longitudinally along the slot 37' together with the connecting seat 43' at the recess 44 to achieve a change in longitudinal position of a particular bracket 27.
  • Such bracket 27 contains an upper flange or arm 28' and a lower flange or arm which together with the middle flange or arm 29 form the upper channel 31 within which the return strand shown schematically, of the particular drive chain is conducted, and the lower channel 32' within which the forward strand of the particular drive chain is conducted.
  • Such lower channel 32 slidably receives the appropriate lug runner 34 of the keel 22 of a planer or other mining machine through the longitudinal slit 33 defined between the lower arm 30' of bracket 27 and the marginal portion formed by the underside of conveyor 23 and the lower portion of the side wall 25' and/or the bounce plate 26' thereat.
  • the latter construction may be considered the guide groove for guiding the lug runner means of the planer or other mining machine in the discontinuous course along the guide means, shown in the form of a conveyor, with a minimum of constructional parts and a maximum of advantages attendant the same.
  • the middle arm in question i.e. 9 or 29 or 29, is constructed as a double concave arm which allows the particular strand of the drive chain to be suitably accommodated in sliding engagement therewith and desirably the longitudinal end portions of such arm are arcuate in configuration so as to provide a smooth transition to take up thereat the given portion of the drive cable and feed out the same, at the particular end thereof in question, whereby to minimize frictional contact between the drive chain and the middle arm and any attendant jamming which might otherwise occur in conjunction with the provision for the elongated axial composite guiding element means of the invention in view of the discontinuous nature of the guide path provided by the guide grooves and/or the brackets at the particular side of the conveyor.
  • FIG. 6 shows an alternate embodiment of a cover or hood 48 of similar profile to the brackets 27' of FIG. 5 and brackets 27 of FIG. 4, and for that matter of the brackets 7 of FIGS. 1 to 2 and 3, which is provided at one end with an appropriate latch element 47 and a pair of mounting fingers 47" at the other longitudinal end thereof designed to be inserted into appropriate apertures, similar to apertures shown in the spine 38 of the bracket 27' of FIG. 5.
  • the pair of mounting fingers 47" is also readily insertable into latch openings 40 in appropriate ears 38 of the type shown in FIG. 4 with the understandable modification of providing two such cars 33 at the particular side of bracket 27 at which the mounting fingers 47" of the hood 48" are to be releasably connected.
  • the separated longitudinally spaced apart brackets in conjunction with the appropriate elongated axial composite guiding element means utilized preserve the desired guidance of a given mining machine, such as a planer, along a guide means mounted adjacent a mine face, such as a mining conveyor, without adverse effect on the mining operation, without excessive wear and/ or jamming of the operating parts, yet with a decrease in cost, the use of simpler constructional parts resulting in a reduction of weight in the over-all system, all of which allows immediate inspection of the drive cable means and immediate access for repair or replacement thereof.
  • the guide groove and the guide brackets provided need not be positioned at the side wall of the conveyor remote from the mine face, and that the mining machine need not be of the type having a keel rear- Wardly extending from the cutting means so as to underlie the guide means, such as a conveyor, for suitable attachment of the mining machine with the traction cable means via such keel at the side of the guide means remote from the mine face.
  • the broadest aspects of the present invention contemplate any type of mining machine with any type of guide means for conducting such mining machine longitudinally along a path in operative engagement with the mine face thereat wherein traction cable means are associated with such guide means to displace the mining machine in the desired path.
  • the important construction of the invention involves the use of discontinuous longitudinally spaced apart guide grooves on the guide means utilized in conjunction with lug runners on the mining machine having appropriate elongated axial composite guiding element means so as to achieve proper directing influence and longitudinal guidance of the lug runners of the mining machine along the guide means without substantial deviation along the desired path.
  • the drive chain passage for the drive chain of the mining machine is accessible at all points therealong so that if such chain or other traction cable means breaks during mining operations, the same can be repaired rapidly,
  • the components utilized for such chain passage unlike the conventional constructions heretofore used, are simple to manufacture, easier to handle, and entail a considerable reduction in weight of the individual components and, in turn, of the entire installation than could be attained with the constructions of the prior art, while nevertheless assuring the reliable guidance of the mining machine under all circumstances normally encountered in underground longwall mining operations.
  • the guide grooves of the invention are indeed utilized with cooperating elongated axial composite guiding element means on the mining machine whereby the guiding element means is able to execute only limited movement with respect to the normal axial disposition thereof in connection with the mining machine used.
  • the hawse elements or upright brackets containing the guide grooves are preferably composed of hard steel castings in an approximate E-shaped cross-section, for example as shown in the various embodiments of the drawing, with the connection of such brackets to the appropriate portion of the conveyor being releasable in nature to permit reasonable longitudinal displacement of the bracket with respect to the conveyor on which the same is mounted.
  • Such brackets because of their hard structure, are readily adapted for mounting of advancing means which are used to advance the entire conveyor assembly or other guide means toward the mine face being worked.
  • hoods are contemplated for covering over the space between adjacent ends of brackets, usable in accordance with the invention, such hoods are only optional and need not be provided since the entire guidance of the arrangement in question is achieved by the aforementioned relationship between the guide grooves and the elongated axial composite guiding element means.
  • the tubular beads are strung along the reinforcing cable 'which may be in the form of a chain interconnecting the lug runners, and also strung along the appropriate end portion of the for-ward strand of the traction cable beyond the corresponding lug runners a certain distance to attain preliminary guidance of the lug runners during their passage in turn through the discontinuously arranged guide grooves.
  • the appropriate end portion of the forward strand of the traction cable preferably containing tubular beads or other elongated axial composite guiding element means, will assure unhindered passage of the drive chain and lug runners Within the guide grooves in an efficient manner.
  • the reinforcing cable or chain or resilient bar which may interconnect the pair of lug runners utilized in the preferred embodiment of the invention can be mounted with respect to such lug runners so that adjustment of the tension thereof is possible to change the elastic or resilient nature of the connection between the lug runners and especially in view of the tendency thereof to deviate from the normal axial longitudinal path in question.
  • the stiffening of the appropriate interconnection between the lug runners may be attained within limits by use of an elastic rod, packs of leaf springs or bar springs, or the like, preferably with tubular beads of the foregoing type mounted therealong.
  • the necessary stiffness coupled with the desired elasticity can be attained by the use of any combined construction of rigid and yielding parts suitable within the contemplation of the foregoing.
  • the dimension of the ha'wse elements or brackets in the longitudinal direction is so related to the length of the particular pair of lug runners, in accordance with a preferred feature of the invention, that at least one lug runner is always in contact with a guide groove of a particular bracket, or at least the elongated axial composite guiding element means utilized .therewith is in contact always with such a guide groove.
  • the conveyor is in the form of separate articulated sections, with each having an appropriate section of the bounce plate mounted thereon and with a pair of brackets of the type in question mounted near the longitudinal ends of such sub-section whereby ready transition of the traction cable means from one conveyor section to the next maybe attained utilizing the brackets and guide grooves for this purpose in conjunction with the elongated axial composite guiding element means.
  • the present construction permits easy access to the drive cable means, simplified manufacture of component parts, a considerable reduction in weight of the over-all system coupled with the novel, yet secure, guidance of the mining machine along the guide means such as a conveyor.
  • additional cover plates or hoods may be positioned between the brackets or hawse elements, and such hoods are economical and simple to manufacture, sufiiciently resistant to the high stresses which occur in mining operations, and particularly easy to insert and remove without interfering with the primary advantages and operative details of the present invention.
  • the present invention contemplates a mining arrangement including a mining conveyor, adapted to be disposed adjacent a mine face and having longitudinally spaced apart bracket means mounted along one side thereof, each of which contains a guide groove, a mining machine, mounted on said conveyor for displacement back and forth therealong in a longitudinal path adjacent such mine face, and having forward cutting means thereon for operatively engaging such mine face for the extraction of mineral therefrom as well as a pair of separate longitudinally aligned spaced apart lug runner means thereon positioned tranversely rearwardly with respect to said cutting means, which lug runner means are longitudinally guidingly received through said guide grooves for stabilized guidance of the mining machine in relation to said longitudinal path, said lug runner means being adapted to be connected with the appropriate ends of the forward strand of a traction cable means used to displace such mining machine along said conveyor for extraction of mineral from the mine face and said guide grooves being further adapted to receive there through such forward strand of the traction cable means, and elongated
  • the elongated axial composite guiding element means includes a corresponding elongated axial composite guiding element extension portion capable of only limited deviation from the normal axis thereof disposed at the appropriate opposite side of each said lug runner means at which the particular end of such traction cable means is adapted to be connected, whereby to assist in preliminary guidance of such traction cable means and in turn said lug runner means along such elongated guide means.
  • guiding element means and guiding element extension portions are in the form of tandemly positioned bead members.
  • a reinforcing cable is provided to interconnect the lug runner means to relieve the opposing stresses placed thereon by the pulling force of such traction cable means and said guiding element means are in the form of tandemly positioned tubular beads strung along said reinforcing cable.
  • a resilient reinforcing bar interconnects said lug runner means to relieve the opposing stresses placed thereon by the pulling force of such traction cable means and said guiding element means are in the form of tandemly positioned tubular beads strung along said reinforcing bar.
  • the mining machine utilized will bea mining planer with such forward cutting means positioned for operatively engaging such mine face and having a rearward stabilizer keel extending transversely rearwardly from said cutting means and underlying the conveyor, the free end of said keel remote from said cutting means carrying said pair of spaced apart lug runner means there on and said bracket means being corresponding positioned on the side of the conveyor remote from the mine face and said cutting means and guidingly receiving there through said lug runner means thereat.
  • each bracket means defines with the adjacent side of such conveyor a traction cable channel for receiving the return strand of the traction cable adapted to be used for displacing such mining machine, the forward strand of such traction cable being adapted to be received in the corresponding guide groove of such bracket means.
  • bracket means are in the form of an upright three-armed member of E-shaped crosssection, with the open end thereof being disposed adjacent the corresponding side wall of such conveyor and with the lowermost arm thereof spaced slightly below the underside of said conveyor, whereby to form an upper return strand traction cable channel between the confining por tions of the conveyor side wall and the uppermost and middle arm portions of said upright member and a combined lower forward strand traction cable channel and lug runner guide groove between the confining portions of the conveyor side wall and the middle and lowermost arm portions of said upright member, the adjacent portion of said conveyor defined by the margin between the adjacent side wall and underside thereof together with the adjacent portion of said lowermost leg forming a longitudinally directed slit for receiving thereat the free end of said keel carrying said pair of spaced apart lug runner means thereon.
  • the bracket means are provided with vertical reinforcement spines thereon and/or pivotal mounting means for connection with advancing means adapted to be used to displace the conveyor transversely toward the mine face.
  • bracket means in accordance with a further preferred feature of the invention are limitedly longitudinally displaceably mounted on the adjacent side of the conveyor to adjust the distance longitudinally between adjacent bracket means.
  • an upwardly extending bounce plate is mounted on the adjacent side wall of the conveyor intermediate such side Wall and the corresponding bracket means, said bounce plate having a plurality of longitudinal slots therein, and said upright members are in the form of an upright bracket wall having an upper trans verse flange extending into abutment with said plate, a lower transverse flange extending toward the adjacent portion of the conveyor defined by said margin between the adjacent side wall and underside thereof to define said longitudinal slit, and a middle arm of double concave cross-section extending from the middle portion of said upright wall to said plate and having a bore transversely defined therethrough, with a bolt connection means being inserted through the adjacent portion of each said upright wall, the corresponding bore of each said middle arm and a corresponding slot in said plate for interconnecting the corresponding upright walls, middle arms and in turn the bracket means with the conveyor for adjustable displacement of such bracket means longitudinally within the longitudinal limits of the appropriate bounce plate slots.
  • Mining machine adapted to be displaced along an elongated guide means back and forth in a longitudinal path adjacent to a mine face, having forward cutting means thereon for operatively engaging such mine face for the extraction of mineral therefrom, slide surface means thereon for engaging slidably such elongated guide means to maintain the mining machine in normal relation to such longitudinal path, a pair of separate longitudinally aligned spaced apart lug runner means thereon positioned transversely rearwardly with respect to said cutting means, which lug runner means are adapted to be received in guide groove means of said elongated guide means for stabilized guidance of the mining machine in relation to such longitudinal path and each of which lug runner means is adapted to be connected to an appropriate end of a traction cable means used to displace the mining ma chine along such elongated guide means for extraction of mineral from the mine face, and elongated axial composite guiding element means capable of only limited deviation from the normal axis thereof interposed longitudinally between said lug runner means, whereby to assist in guiding
  • said guiding element means includes a corresponding elongated axial composite guiding element extension portion capable of only limited deviation from the normal axis thereof disposed at the appropriate opposite side of each said lug runner means at which the particular end of such traction cable means is adapted to be connected, whereby to assist in preliminary guidance of such traction cable means and in turn said lug runner means along such elongated guide means.
  • Machine according to claim 3 wherein a resilient reinforcing bar interconnects said lug runner means to relieve the opposing stresses placed thereon by the pulling force of such traction cable means and said guiding element means are in the form of tandemly positioned tubular beads strung along said reinforcing bar.
  • Machine according to claim 1 wherein said mining machine is a mining planer, adapted to be guided via said slide surface means in a longitudinal path back and forth along a mining conveyor as such elongated guide means with said forward cutting means positioned for operatively engaging such mine face and having a rearward stabilizer keel extending transversely rearwardly from said cutting means and said slide surface means for underlying such conveyor, the free end of such keel remote from said cutting means carrying said pair of spaced apart lug runner means thereon.
  • Mining conveyor adapted to be disposed adjacent to a mine face, and having longitudinally spaced apart bracket means mounted along one side thereof, each of which contains a guide groove for longitudinally guiding ly receiving therethrough appropriate longitudinally aligned spaced apart lug runner means of a mining machine, adapted to be slidably displaced back and forth along said conveyor for operative engagement with such mine face for the extraction of mineral therefrom, and for guidingly receiving traction cable means adapted to be correspondingly connected to such lug runner means for displacing such mining machine thereby, and where in means defining corresponding longitudinal slots are provided on the side of the conveyor adjacent said bracket means and said bracket means are provided with bracket connecting means operatively engaging said slots whereby to mount said bracket means limitedly longitudinally displacably on said adjacent side of the conveyor via said slots to permit the distance longitudinally between the adjacent bracket means to be adjusted.
  • each said bracket means defines with the adjacent side of such conveyor a traction cable channel for receiving the return strand of the traction cable adapted to be used for displacing such mining machine, the forward strand of such traction cable being adapted to be received in the corresponding guide groove of such bracket means.
  • bracket means are in the form of an upright three-armed member of E-shaped cross-section, with the open end thereof being disposed adjacent to the corresponding side wall of such conveyor and with the lowermost arm thereof spaced slightly below the under side of said conveyor, whereby to form an upper return strand traction cable channel between the confining portions of the conveyor side wall and the uppermost and middle arm portions of said upright member and a combined lower forward strand trac tion cable channel and lug runner guide groove between the confining portions of the conveyor side wall and the middle and lowermost arm portions of said upright memher, the adjacent portion of said conveyor defined by the margin between the adjacent side wall and under side thereof together with the adjacent portion of said lowermost arm forming a longitudinally directed slit for receiving thereat appropriate connection means between such lug runner means and such mining machine with respect to which the conveyor is adapted to be used.
  • bracket means are provided with vertical reinforcement spines thereon.
  • bracket means are provided with pivotal mounting means for connection with advancing means adapted to be used to displace the conveyor transversely toward the mine face.
  • an upwardly extending bounce plate is mounted on the adjacent side wall of the conveyor intermediate such side wall and the corresponding bracket means, a plurality of said longitudinal slots being defined in said bounce plate
  • said upright members are in the form of an upright bracket wall having an upper transverse flange extending into abutment with said plate, a lower transverse flange extending toward the adjacent portion of the conveyor defined by said margin between the adjacent side wall and under side thereof to define said longitudinal slit, a middle arm of double concave cross-section extending from the middle portion of said upright wall to said plate and having a bore transversely defined therethrough
  • said bracket connecting means include a bolt connection means inserted through the adjacent portion of each said upright wall, the corresponding bore of each said middle arm and a corresponding slot in said plate for interconnecting the corresponding upright walls, middle arms and in turn the bracket means with the conveyor for adjustable displacement of such bracket means longitudinally within the longitudinal limits of the appropriate bounce plate slots.
  • Mining arrangement including a mining conveyor, adapted to be disposed adjacent to a mine face, and having longitudinally spaced apart bracket means mounted along one side thereof, each of which contains a guide groove, a mining machine, mounted on said conveyor for displacement back and forth therealong in a longitudinal path adjacent to such mine face, and having forward cutting means thereon for operatively engaging such mine face for the extraction of mineral therefrom as well as a pair of separate longitudinally aligned spaced apart lug runner means thereon positioned transversely rearwardly with respect to said cutting means, which lug runner means are longitudinally guidingly received through said guide grooves for stabilized guidance of the mining machine in relation to said longitudinal path, said lug runner means being adapted to be connected with the appropriate ends of the forward strand of a traction cable means used to displace such mining machine along said conveyor for extraction of mineral from the mine face and said guide grooves being further adapted to receive therethrough such forward strand of the traction cable means, and elongated axial composite guiding element means capable of only limited deviation from
  • said guiding element means includes a corresponding elongated axial composite guiding element extension portion capable of only limited deviation from the normal axis thereof disposed at the appropriate opposite side of each said lug runner means at which the particular end of such traction cable means is adapted to be connected, whereby to assist in preliminary guidance of such traction cable means and in turn said lug runner means along such elongated guide means.
  • a reinforcing cable interconnects said lug runner means to relieve the opposing stresses placed thereon by the pulling force of such traction cable means and said guiding element means are in the form of tandemly positioned tubular beads strung along said reinforcing cable.
  • a resilient reinforcing bar interconnects said lug runner means to relieve the opposing stresses placed thereon by the pulling force of such traction cable means and said guiding element means are in the form of tandemly positioned tubular beads strung along said reinforcing bar.
  • said mining machine is a mining planer with said forward cutting means positioned for operatively engaging such mine face and having a rearward stabilizer keel extending transversely rearwardly from said cutting means and underlying the conveyor, the free end of said keel remote from said cutting means carrying said pair of spaced apart lug runner means thereon and said bracket means being correspondingly positioned on the side of the conveyor remote from the mine face and said cutting means and guidingly receiving therethrough said lug runner means thcreat.
  • each said bracket means defines with the adjacent side of such conveyor 21 traction cable channel for receiving the return strand of the traction cable adapted to be used for displacing such mining machine, the forward strand of such traction cable being adapted to be received in the corresponding guide groove of such bracket means.
  • bracket means are in the form of an upright three-armed member of E-shaped cross-section, with the open end thereof being disposed adjacent to the corresponding side wall of such conveyor and with the lowermost arm thereof spaced slightly below the under side of said conveyor, whereby to form an upper return strand traction cable channel between the confining portions of the conveyor side wall and the uppermost and middle arm portions of said upright member and a combined lower forward strand traction cable channel and lug runner guide groove between the confining portions of the conveyor side wall and the middle and lowermost arm portions of said upright member, the adjacent portion of said conveyor defined by the margin between the adjacent side wall and under side thereof together with the adjacent portion of said lowermost arm forming a longitudinally directed slit for receiving thereat the free end of said keel carrying said pair of spaced apart lug runner means thereon.
  • bracket means are provided with vertical reinforcement spines thereon.
  • bracket means are provided with pivotal mounting means for connection with advancing means adapted to be used to displace the conveyor transversely toward the mine face.
  • bracket means are limitedly longitudinally displaceably mounted on the adjacent side of the conveyor to adjust the distance longitudinally between adjacent bracket means.
  • an upwardly extending bounce plate is mounted on the adjacent side wall of the conveyor intermediate such side wall and the corresponding bracket means, said bounce plate having a plurality of longitudinal slots therein
  • said upright members are in the form of an upright bracket wall having an upper transverse flange extending into abutment with said plate, a lower transverse flange extending toward the adjacent portion of the conveyor defined by said margin between the adjacent side wall and under side thereof to define said longitudinal slit, a middle arm of double concave cross-section extending from the middle portion of said upright wall to said plate and having a bore transversely defined therethrough, and wherein a bolt connection means is inserted through the adjacent portion of each said upright wall, the corresponding bore of each said middle arm and a correspond- 1 7 ing slot in said plate for interconnecting the correspond ing upright walls, middle arms and in turn the bracket means with the conveyor for adjustable displacement of such bracket means longitudinally within the longitudinal limits of the appropriate bounce plate slots.

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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)
  • Disintegrating Or Milling (AREA)
  • Manufacture Of Tobacco Products (AREA)
  • Binders And Loading Units For Sheaves (AREA)
  • Apparatuses For Bulk Treatment Of Fruits And Vegetables And Apparatuses For Preparing Feeds (AREA)
  • Harvesting Machines For Root Crops (AREA)
  • Spinning Or Twisting Of Yarns (AREA)
US549337A 1965-05-14 1966-05-11 Longwall mining machine, conveyor and traction cable arrangement Expired - Lifetime US3382004A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEG43595A DE1265093B (de) 1965-05-14 1965-05-14 Fuehrung fuer eine Gewinnungsmaschine, insbesondere Kohlenhobel

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US (1) US3382004A (enrdf_load_stackoverflow)
AT (1) AT268176B (enrdf_load_stackoverflow)
BE (1) BE680992A (enrdf_load_stackoverflow)
DE (1) DE1265093B (enrdf_load_stackoverflow)
ES (1) ES326679A1 (enrdf_load_stackoverflow)
GB (1) GB1136495A (enrdf_load_stackoverflow)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694032A (en) * 1970-11-02 1972-09-26 Green & Bingham Ltd Ramp plate and loader for mineral conveyors
US3782777A (en) * 1972-04-24 1974-01-01 Eickhoff Geb Apparatus supported by a longwall conveyor frame for hauling coal mining equipment
US3787090A (en) * 1971-07-05 1974-01-22 Gewerk Eisenhuette Westfalia Mineral mining installations

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3521182C2 (de) * 1985-06-13 1994-08-18 Halbach & Braun Ind Anlagen Ketteneinlauf einer rohrförmigen Hobelkettenführung zum Führen eines Kohlenhobels an der Förderrinne eines Förderers, insbesondere Kettenkratzförderers
DE3627733A1 (de) * 1986-08-16 1988-02-18 Gewerk Eisenhuette Westfalia Hobelkettenfuehrung fuer schwerthobel
CN113117626A (zh) * 2021-04-02 2021-07-16 李兴贵 一种用于海洋生物多肽提取液的快速浓缩装置

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1328624A (fr) * 1962-06-18 1963-05-31 Maschfab Eisengiesserei Beien Perfectionnements apportés aux dispositifs d'abattage pour exploitations minières
US3164412A (en) * 1962-02-14 1965-01-05 Gewerk Eisenhuette Westfalia Planer having pivotally mounted side plates

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1286590A (fr) * 1961-04-25 1962-03-02 Gewerk Eisenhuette Westfalia Transporteur à raclettes à deux chaînes pour l'exploitation de gisements miniers en dressant avec organes placés du côté du remblai pour le guidage d'un rabot à charbon

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3164412A (en) * 1962-02-14 1965-01-05 Gewerk Eisenhuette Westfalia Planer having pivotally mounted side plates
FR1328624A (fr) * 1962-06-18 1963-05-31 Maschfab Eisengiesserei Beien Perfectionnements apportés aux dispositifs d'abattage pour exploitations minières

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3694032A (en) * 1970-11-02 1972-09-26 Green & Bingham Ltd Ramp plate and loader for mineral conveyors
US3787090A (en) * 1971-07-05 1974-01-22 Gewerk Eisenhuette Westfalia Mineral mining installations
US3782777A (en) * 1972-04-24 1974-01-01 Eickhoff Geb Apparatus supported by a longwall conveyor frame for hauling coal mining equipment

Also Published As

Publication number Publication date
BE680992A (enrdf_load_stackoverflow) 1966-11-14
GB1136495A (en) 1968-12-11
ES326679A1 (es) 1967-07-01
DE1265093B (de) 1968-04-04
AT268176B (de) 1969-02-10

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