US3787090A - Mineral mining installations - Google Patents

Mineral mining installations Download PDF

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Publication number
US3787090A
US3787090A US00266919A US3787090DA US3787090A US 3787090 A US3787090 A US 3787090A US 00266919 A US00266919 A US 00266919A US 3787090D A US3787090D A US 3787090DA US 3787090 A US3787090 A US 3787090A
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US
United States
Prior art keywords
conveyor
guide members
guide
installation according
flanges
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
US00266919A
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English (en)
Inventor
A Hauschopp
O Breuer
B Ostrop
B Steinkuhl
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
Original Assignee
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
Publication date
Priority claimed from DE19712133262 external-priority patent/DE2133262C3/de
Priority claimed from DE19712150228 external-priority patent/DE2150228C3/de
Application filed by Gewerkschaft Eisenhutte Westfalia GmbH filed Critical Gewerkschaft Eisenhutte Westfalia GmbH
Application granted granted Critical
Publication of US3787090A publication Critical patent/US3787090A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Definitions

  • the machine or plough has a sword plate extending beneath the conveyor and this sword plate is guided at the stowage or goaf side of the conveyor.
  • the guidance arrangement usually takes the form of components connected to the goaf side of the conveyor to form guide channels or passages for receiving a chain used to drive the winning machine along the conveyor. The drive forces are transmitted from the chain to the winning machine via the sword plate.
  • the sword plate usually has some form of guide means at its outer end which is disposed within the lower of the guide passages. Special measures may be necessary to ensure that the guide means is accurately guided in this lower passage.
  • the guide passages may be produced by E-shaped brackets which are attached to the goaf side of the conveyor. Usually these brackets are short in relation to the length of the conveyor sections and disposed at a considerable distance apart so that additional devices are required to bridge over the gaps between these brackets. In another construction a number of spacers are attached to each of the conveyor channel sections to vertically separate the guide passages from one another and a single cover or cap is used to shield the passages from the goaf zone. The cap is especially heavy and unwieldy and the overall construction is cumbersome and generally disadvantageous. Another disadvantage of the prior art is that the known guidance systems are not wholly suitable for transmitting shifting forces to the conveyor.
  • a general object of this invention is to provide an improved installation of the aforementioned kind.
  • a mineral mining installation comprising a scraper chain conveyor composed of a plurality of channel sections joined end-to-end and at least twoguide members disposed closely adjacent one another and attached to one side of each channel section, the guide members being substantially E-shaped in cross-section with upper and lower flanges and a central web, adjoining a main wall, the guide members being disposed outwardly from the conveyor so as to form upper and lower chain guide passages.
  • Normally barrier plates would be disposed between the guide members and the conveyor channel sections.
  • a small gap is disposed between the guide members allocated to each channel section of the conveyor as there is between the adjacent guide members of two adjacent conveyor'channel sections.
  • the guide members can be constructed to enable the shifting forces to be transmitted to the conveyor. By having two guide members for eachchannel section the weight of the individual members is kept within acceptable limits and these members can thus be transported and handled without undue difficulty. Moreover by making the members of identical construction and preferably completely symmetrical the members can be interchanged and vertically re-orientated to cope with wear.
  • each guide member is of hollow reinforced construction.
  • This web may have a number of cross pieces projecting towards the conveyor and spaced apart longitudinally of the conveyor to form a series of U-shaped compartments open towards the conveyor.
  • the upper surfaces of the cross pieces form a running surface for the sections of a chain disposed in the upper guide passage.
  • Each of the apertures preferably has an aperture therethroug'h for receiving a bolt used to secure the associated guide member to the conveyor.
  • These apertures can be in the form of vertical slots enabling the guide member to be readily adjusted in relation to the conveyor.
  • each guide member is formed with two longitudinal ribs having upwardly and downwardly directed flanges. At least one of the flanges of the longitudinal ribs has a series of apertures therein to enable shifting rams to be connected to the guide members. The shifting forces can thus be distributed and transmitted through the reinforced central web of the guide members to the conveyor.
  • the guide members may be an integral casting although a multipart welded construction is alsopossible.
  • the central web is detachable from the remainder of each guide member. This web may be constructed from two plates interconnected at their ends and crosspieces arranged between said plates and spaced apart longitudinally of the conveyor. In a specific construction four such cross-pieces are provided for each central web, the inner faces of the plates and the crosspieces defining reception zones for fixing bolts which are used to secure the web and the remainder of the associated guide members to the conveyor.
  • fixing devices for clamping the guide members to the conveyor, each of said devices being engageable with a shaped aperture provided in the transition zone between the main wall and the upper flange of the associated guide member.
  • Each fixing device may have a hook-like projecting arm which engages with the guide member in the region of the shaped aperture.
  • FIG. 1 is a diagrammatic side view of a mineral mining installation made in accordance with the invention
  • FIG. 2 shows at the left-hand side a sectional plan view of one part of the installation taken along the line IIII of FIG. 1, and at the right-hand side a plan view of the other part of the installation taken along the line II'--II of FIG. 1;
  • FIG. 3 is an end view of the installation taken in the direction of the arrow III of'FIG. I;
  • FIG. 4 is a diagrammatic side view of a further mineral mining installation made in accordance with the invention with the conveyor-omitted for the sake of clarity;
  • FIG. 5 shows at the left-hand side a sectional plan view of one part of the further installation taken along the line VV of FIG. 4 and at the right-hand side a plan view of the other part of the installation taken along the line V'V of FIG. 4',
  • FIG. 6 is an end view of the further installation taken in the direction of the arrow VI of FIG. 4;
  • FIG. 7 is a side view of a detachable central web for use with the installations shown in FIGS. 1 to 6.
  • FIGS. 1 to 3 there is shown a mineral mining installation with a scraper chain conveyor generally denoted 1.
  • the conveyor 1 is, in the known manner, composed of individual channel sections joined end-to-end and movable to a limited extent in respect of one another. Each of these channel sections is constructed from profiled side walls 1' of generally sigma-shaped cross-section connected to a floor 1".
  • a scraper chain assembly which is omitted from the drawings for the sake of clarity, is circulated along the floors 1" of the channel sections and guided by the side walls 1'.
  • a winning machine such as a plough would be guided for movement along the mineral face side of the conveyor 1, i.e. along the walls 1' adjacent the face.
  • barrier plates 18 On the stowage or goaf side of the conveyor there is provided barrier plates 18 of L-shaped crosssection. These plates 18 each have an upper flange extending outwardly from the conveyor 1 and the plates 18 are arranged end-to-end along the conveyor 1 to form a continuous wall. Usually a single barrier plate 18 extends along each of the channel sections of the conveyor I. A series of guide members 2,2 are attached to the barrier plates 18 and more particularly two such members 2,2 are allocated to each channel section of the conveyor. The length of these two members 2,2 is such that a narrow gap 22 is produced at the centre of each channel section.
  • each guide member 2,2 is basically of E-shaped cross-section with a main outer wall 14, an upper flange 14' a lower flange 14" and a central web 9.
  • the guide member 2,2 may be formed as a casting.
  • the upper flange 14 and the central web 9 of each guide member 2,2 is affixed to the associated barrier plate 18 so as to form two guide passages, namely an upper guide passage 19 and a lower guide passage 24.
  • the substantially continuous passages 19, 24 thus formed by the collective guide members 2,2 are separated from one another by the webs 9 and serve to receive an endless chain (not shown) used for driving the winning machine or plough along the conveyor.
  • the return run of the chain is disposed in the passages 19 whilst the haulage run of the chain is disposed in the passages 24.
  • a gap 25 is formed between the lower part of the barrier plates 18 and the side walls 1 of the conveyor channel sections on the one hand and the lower flanges 14 of the guide members on the other hand.
  • This gap 25 receives a terminal portion of a sword plate (not shown) attached to the winning machine and extending beneath the conveyor in known manner.
  • the sword plate serves to guide the machine and transmits the driving force of the chain thereto.
  • the end of the sword plate is disposed within the guide passage 24 and one or more guide bodies (not shown) would connect the sword plate to the haulage run of the chain in the passage 24 and these guide bodies would be guided for movement within the passage 24.
  • each guide member 2,2 is basically a hollow reinforced structure provided with spaced-apart crosspieces to form U- shaped compartments 10,I1,12,I3 open towards the associated barrier plate 18.
  • Each of these crosspieces 90 is itself provided with an aperture 15 extending through the main wall 14 of the guide member 2,2. Fixing bolts 16 are inserted through these apertures 15 to pass through bores in the associated barrier plate 18 and thereby serve to attach the guide members 2,2 to the plate 18. Additional fixing means generally denoted 91 are provided at the region of the upper flanges 14' of the members 2,2.
  • the apertures 15 are preferably in the form of vertically-orientated slots to permit the guide members 2,2 to be positioned vertically prior to tightening of the bolts 16.
  • Shaped washers 23 are provided under the head of each of the bolts 16 at the outside of the wall 14.
  • the upper faces of the crosspieces 90 form a running surface 20 for the return run of the drive chain.
  • each guide member 2,2 The outer face of the wall 14 of each guide member 2,2 is provided with two longitudinal ribs 3,4 disposed centrally of the member 2,2 and generally aligned with the web 9.
  • Vertical ribs 5 are connected between the ribs 3,4 and spaced apart longitudinally of the members 2,2.
  • the main ribs 3,4 are curved over portions of their length in the region of the apertures 15 and the ribs 3,4 are provided with small flanges 6,7 extending generally parallel to the main wall 14.
  • the upper flange 6 is provided with recesses 8 spaced apart longitudinally of the member 2,2 and serve to locate shifting rams (not shown). The forces produced by these rams which act to bodily move the conveyor and associated parts towards the mineral face are in the main directed through the reinforced central part of the members 2,2.
  • FIGS. 4 to 6 depict a further embodiment of the invention where the conveyor is omitted except for the ghost outline of the goaf side wall 1' of one of the channel sections shown in FIG. 6, so that only the barrier plates 18 and the guide members 2,2 are shown in detail.
  • FIGS. 4 to 6 denote the same features described above and illustrated in FIGS. 1 to 3.
  • two guide members 2,2 are attached to the barrier plate 18 provided at the goaf side of the conveyor.
  • Each guide member 2,2 is again of E-shaped cross-section with an upper flange 14', a central web 9 a lower flange 14" and a main wall 14.
  • Each member 2,2 is symmetrical about the horizontal plane m so that they can be inverted with either the flange 14 or the flange 14" at the top.
  • the members 2,2 are fabricated by casting and/or welding.
  • the central web 9 is a body 17 provided with apertures 15 receiving bolts 16, located in bores in the barrier plate 18.
  • the heads of the bolts 16 are disposed at the outside of the apertures in the main wall 14 and shaped washers preferably underlie these heads.
  • Ribs 3, 4 are welded onto or otherwise produced at the outside of the main wall 14 and these ribs 3,4 extend over the entire length of the member 2,2.
  • a plate 21 is connected across the edges of the ribs 3,4 to lie parallel to the wall 14.
  • Apertures 21' are provided in the plate 21 to permit access to the bolts 16.
  • the edges of the plate 21 are also provided with recesses 21" spaced apart longitudinally of the plate 21.
  • the recesses 21 permit connection with shifting rams (not shown) and the shifting forces produced by these rams are in the main transmitted to the conveyor via the reinforced web 9.
  • Additional fixing devices 26 for fixing the members 2,2 to the barrier plate l8 are disposed at the region of the upper flanges 14.
  • Each device 26 has a hooklike projecting arm 27 which is received by a shaped aperture 18 provided in the transition region between the main wall 14 and the upper flange 14' of the associated member 2,2 to lock the member 2,2 to the device 26.
  • a similarly shaped aperture 28 is provided in the transition region of the flange 14" and the wall 14 of each member to permit the members 2,2 to be inverted.
  • the members 2,2 are formed by bending and welding before the flangesl4, 14" are produced by bending an H-shaped cut away portion (FIG. 4) pro **d in the position where it is desired to form the apertures 28 will result in the automatic formation of the aperture when the flanges l4', 14" are bent over.
  • Each device 26 has a certain amount of clearance in respect of the upper flange 14' of the associated member 2,2 and this enables the member 2,2 to be released and re-co'nnected in an inverted position with the flange 14" now at the top. Such re-connection may be desirable when a certain amount of wear has occurred.
  • Each device 26 is attached to the barrier plate 18 with the aid of a bolt 32 which extends through a web 33 of the device 26.
  • Each device has extensions 3! which abut the barrier plate 18 to provide leverage between the point of application of the bolt 32 and the barrier plate 18, so that the device 26 can clamp the member 2,2 to the barrier plate 18 with considerable force.
  • the devices 26 each have an upright plate 34 at the outerside of the construction and this plate 34 has bores therein the enable accessories such as cable clamps or the like to be attached to the device 26.
  • each member 2,2 is either formed integrally with, or else rigidly attached to, the remainder of the member 2,2. lt is however feasible to use detachable webs connected to the member 2,2 with the aid of the fixing bolts 16 for example.
  • An example of a detachable web 9 is shown in FIG. 7.
  • the web 9 is formed from two par- 'allel plates 40,41 which have converging ends 42 that are welded together.
  • the width of the plates 40, 41 in a plane perpendicular to the drawing is equal to the width of the passages 19, 24 and to the distance between the inner face of the main wall 14 of the associated member 2,2 and the outer'face of the barrier plate 18.
  • a number, in this case four, of cross-pieces 43-46 are welded between'the plates 40,41 with the crosspieces 43, 46 near the endsof the webs 9 and the crosspieces 44,45 near the centre.
  • the distance between the crosspieces 44,45 and the distance between the plates 40, 41 is somewhat greater than the diameter of the fixing bolts 16. Three bolts can be used in the position shown to affix the web 9 to the remainder of the structure and clamp the member 2,2 to the barrier plate.
  • the web 9 thus constructed is symmetrical about the plane m and hence can be used with the plate 40 or 4i uppermost. In the case of wear the web 9 can thus be inverted and in due course replaced.
  • a mineral mining installation comprising: a scraper chain conveyor having a plurality of channel sections joinedend-to-end, a mineral winning machine mounted for movement along one side of the conveyor, two guide members attached to the other side of each channel section, each of the guide members being generally E-shaped in cross section with upper and lower flanges and a central web adjoining a main wall, the central web having a number of crosspieces projecting towards the conveyor and spaced apart longitudinally of the conveyor to form compartments open towards the conveyor, the flanges and the central web of the guide members being directed towards the conveyor to form upper and lower guide passages defined between the central web and the upper and lower flanges, respectively, a drive chain disposed between the lower extremity of the other side of each channel section and the lower flanges of the associated guide members, and a sword plate connected to the machine and extending through at least one of said gaps to connect with the chain disposed in the lower guide passage.
  • each of said crosspieces has an aperture therethrou'gh for receiving a bolt used to secure the associated guide mem' ber to the conveyor.
  • each guide member is constructed in a symmetrical manner so that it can be inverted vertically and re-connected to the conveyor.
  • barrier plates are connected to said one side of the conveyor and the guide members allocated to each channel section are secured to one of said barrier plates.
  • a mineral mining installation comprising: a scraper chain conveyor having a plurality of channel sections joined end-to-end, a mineral winning machine mounted for movement along one side of the conveyor, guide members attached to the other side of each channel section, each of the guide members being generally E-shaped in cross section with upper and lower flanges and a central web adjoining a main wall, the central web being detachablymounted on said main wall and formed from two plates interconnected at their ends with crosspieces arranged between said plates and spaced apart longitudinally of the conveyor, the flanges and the central web of the guide members being directed towards the conveyor to form upper and lower.
  • each guide member is constructed in a symmetrical manner so that it can be inverted vertically and reconnected to the conveyor.
  • barrier plates are connected to said one side of the conveyor and the guide members allocated to each channel section are secured to one of said barrier plates.
  • a mineral mining installation comprising: a scraper chain conveyor having a plurality of channel sections joined end-to-encl, a mineral winning machine mounted for movement along one side of the conveyor, two guide members attached to the other side of each channel section, each of the guide members being generally E-shaped in cross section with upper and lower main flanges and a central web adjoining a main wall, the outer face of the main wall of each guide member being formed with two longitudinal ribs having upwardly and downwardly directed flanges, the main flanges and the central web of the guide members being directed towards the conveyor to form upper and lower guide passages defined between the central web and the upper and lower main flanges, respectively, a drive chain disposed within the upper and lower passages, a gap disposed between the lower extremity of the other side of each channel section and the lower main flanges of the associated guide members, and a sword plate connected to the machine and extending through at least one of said gaps to connect with the chain disposed in the lower guide passage.
  • each guide member is constructed in a symmetrical manner so that it can be inverted vertically and reconnected to the conveyor.
  • barrier plates are connected to said one side of the conveyor and the guide members allocated to each channel section are secured to one of said barrier plates.
  • a mineral mining installation comprising: a scraper chain conveyor having a plurality of channel sections joined end-to-end, a mineral winning machine mounted for movement along one side of the conveyor, two guide members attached to the other side of each channel section, each of the guide members being generally E-shaped in cross section with upper and lower flanges and a central web adjoining a main wall, the central web of each guide member having apertures therein receiving bolts serving to fix the guide member to the conveyor, each guide member being of symmetrical construction permitting the member to be inverted vertically and re-connected to the conveyor, the outer face of the main wall of each guide member being formed with two longitudinal ribs with a plate being connected between said ribs to lie parallel to said main wall, said plate having apertures therein permitting access to said bolts and recesses at its edges for connection to shifting rams, the flanges and the central web of the guide members being directed towards the conveyor to form upper and lower guide passages defined between the central web and the upper and lower flanges, respectively, a drive chain
  • each fixing device has a hook-like projecting arm which engages with the guide member in the region of the shaped aperture.

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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)
  • Pusher Or Impeller Conveyors (AREA)
  • Chain Conveyers (AREA)
US00266919A 1971-07-05 1972-06-28 Mineral mining installations Expired - Lifetime US3787090A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19712133262 DE2133262C3 (de) 1971-07-05 1971-07-05 Führung für eine an einer gezogenen Kette geführte Gewinnungsmaschine
DE19712150228 DE2150228C3 (de) 1971-10-08 1971-10-08 Führung für eine an einer gezogenen Kette geführten Gewinnungs- und/oder Ladevorrichtung

Publications (1)

Publication Number Publication Date
US3787090A true US3787090A (en) 1974-01-22

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US00266919A Expired - Lifetime US3787090A (en) 1971-07-05 1972-06-28 Mineral mining installations

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US (1) US3787090A (de)
BE (1) BE785689A (de)
ES (1) ES404097A1 (de)
FR (1) FR2144662B1 (de)
GB (1) GB1357671A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897108A (en) * 1973-11-07 1975-07-29 Kloeckner Werke Ag Long-wall mining apparatus
US3999651A (en) * 1974-12-19 1976-12-28 Gewerkschaft Eisenhutte Westphalia Conveyors for use in mining
US4074804A (en) * 1975-04-12 1978-02-21 Gewerkschaft Eisenhutte Westfalia Scraper-chain conveyors
US20110182692A1 (en) * 2008-07-18 2011-07-28 Fatigue Technology, Inc. Nut plate assembly and methods of using the same

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3627733A1 (de) * 1986-08-16 1988-02-18 Gewerk Eisenhuette Westfalia Hobelkettenfuehrung fuer schwerthobel

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382004A (en) * 1965-05-14 1968-05-07 Gewerk Eisenhuette Westfalia Longwall mining machine, conveyor and traction cable arrangement
US3431024A (en) * 1966-05-18 1969-03-04 Halbach & Braun Coal-cutting tool

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3382004A (en) * 1965-05-14 1968-05-07 Gewerk Eisenhuette Westfalia Longwall mining machine, conveyor and traction cable arrangement
US3431024A (en) * 1966-05-18 1969-03-04 Halbach & Braun Coal-cutting tool

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3897108A (en) * 1973-11-07 1975-07-29 Kloeckner Werke Ag Long-wall mining apparatus
US3999651A (en) * 1974-12-19 1976-12-28 Gewerkschaft Eisenhutte Westphalia Conveyors for use in mining
US4074804A (en) * 1975-04-12 1978-02-21 Gewerkschaft Eisenhutte Westfalia Scraper-chain conveyors
US20110182692A1 (en) * 2008-07-18 2011-07-28 Fatigue Technology, Inc. Nut plate assembly and methods of using the same

Also Published As

Publication number Publication date
ES404097A1 (es) 1975-05-16
FR2144662A1 (de) 1973-02-16
GB1357671A (en) 1974-06-26
FR2144662B1 (de) 1976-10-29
BE785689A (fr) 1972-10-16

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