US3219199A - Method for loading mine cars and loading apparatus therefor - Google Patents

Method for loading mine cars and loading apparatus therefor Download PDF

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Publication number
US3219199A
US3219199A US199461A US19946162A US3219199A US 3219199 A US3219199 A US 3219199A US 199461 A US199461 A US 199461A US 19946162 A US19946162 A US 19946162A US 3219199 A US3219199 A US 3219199A
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United States
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car
cars
loading
string
loaded
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Expired - Lifetime
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US199461A
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English (en)
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Lagerstrom Gunnar
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Atlas Copco AB
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Atlas Copco AB
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Priority to US199461A priority Critical patent/US3219199A/en
Priority to CH677863A priority patent/CH423677A/de
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    • E—FIXED CONSTRUCTIONS
    • E21—EARTH OR ROCK DRILLING; MINING
    • E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
    • E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
    • E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms

Definitions

  • This invention relates generally to the loading and handling of loose material and more specifically to the loading and handling ⁇ of loose rock material or muck created during the process of forming underground excavations such as in mining or tunnel driving.
  • a further object of the invention is to provide a method and apparatus for loading mine cars in a tunnel in which there is performed an overhead switching and longitudinal displacement of single unloaded cars, the main part of the switching operation being performed while loading of another mine car is in progress.
  • FIG. 1 is a vertical longitudinal section of a tunnel accommodating a mine car loading apparatus according to the invention.
  • FIGS. 2-4 are vertical sections corresponding to FIG. 1 but showing different loading and mine car switching stages.
  • FIG. 5 is a vertical longitudinal section of the tunnel and illustrates forward displacement of the overhead trackway.
  • FIG. 6 is an enlarged transverse section of the tunnel and illustrates overhead switching in progress.
  • FIG. 7 is an enlarged View partly in section and perspective of the lifting means in FIG. 6.
  • FIG. 8 is an enlarged fragmentary side view of the side wall of one of the mine cars with a hoist grapple connected and locked thereto.
  • FIGS. 9a and 9b are fragmentary transverse sections on the line 9 9 in FIG. 8 through the opposed side walls of the mine car.
  • FIG. 10 is an enlarged transverse section through a lined tunnel accommodating a modification of the overhead trackway.
  • FIG. 11 shows an enlarged view partly in section of the lifting means in FIG. 10.
  • FIG. 12 is a top view of a rerailing device for the mine cars.
  • FIG. 13, finally, is a sectional View on line 13-13 in FIG. l2.
  • a gallery, a tunnel or another room as required in underground mining and formed in the rock is designated 20.
  • Rock 21 or other material has been broken up at the face of the tunnel 20 for example by blasting and has to be loaded and hauled away.
  • a loading machine 22 occupies working position adjacent the blasted rock 21 and serves to transfer the rock into open topped wheeled mine cars 23.
  • the loading machine 22 may be of any suitable conventional construction, for example a shovel loader having a self propelled wheeled body 24.
  • the mine cars 23 and preferably also the loading machine 22 may be mounted to move along a trackway 26 consisting of a pair of spaced parallel rails laid out along the oor of the tunnel 20.
  • the tunnel 20 is preferably a narrow one allowing only single file trai-lic of mine cars 23 along the oor of the tunnel or the trackway 26.
  • a frame 27 which carries a vertically swingable rocking shovel mechanism including a shovel bucket 28.
  • the shovel 28, when in the lowered position at the front end of the body 24, may dig into the rock pile 21 while the loading machine 22 is stationary or during forward movement thereof, and when loaded may swing upwardly and rearwardly over the top of the loading machine to discharge its contents at the rear side thereof into a mine car 23 which by means of couplers 25 is releasably secured to the loading Imachine 22 to move as a unit therewith.
  • the shovel 28 may be oscillated about the vertical axis together with the frame 27 to load the rock at either side of the trackway in a manner which is well known. Since the details of the loading machine form no part of the present invention further description thereof is deemed unnecessary.
  • the loading machine 22 defines a mine car loading station for the mine car 23' occupying the load receiving position behind the loading machine 22.
  • the empty mine cars 23 are coupled together by means of the couplers 25 and in actual practice this string of open topped mine cars is designed to hold the entire round of loose material or rock produced by the blast.
  • a string is shown as having been built up of four mine cars A-D but it will be understood that any number of cars may be employed to change the total capacity of the complete string to suit the quantity of blasted loose material.
  • the string of empty mine cars is hauled along the trackway 26 to an empty mine car supply station spaced apart some car lengths from and behind the load receiving station adjacent the loading machine 22. The hauling may be performed by a conventional locomotive, fragmentarily indicated at 29, which places the string at the supply station, FIG. 1, and thereupon may be uncoupled for other tasks.
  • the monorail beam 30 consists of longitudinally interconnected aligned I-beam sections.
  • the upper flanges of the I-bearn sections are slidably received in brackets 31, FIG. 7, provided with an lupwardly protruding threaded shank 32.
  • Each shank 32 is threadedly received in a Spanner nut body 33 threadedly carried by an oppositely threaded shank 34 lof a roof bolt 35 inserted and expanded in drilled holes 36 in the tunnel roof.
  • a series of such roof bolts 35, spanner nuts 33 and brackets 31 are arranged at suitable intervals over and along the overhead trackway for keeping it firmly suspended centrally over the trackway 26.
  • Lock nuts 37 are provided on the Shanks 32 and 34 for locking the Spanner nuts 33 in adjusted position.
  • a travelling lifting means or hoist 38 is adapted to move along the monorail beam 30.
  • the hoist 38 may be of any suitable usual type in which a reversible moto-r 39, FIG. 3, is employed to operate a winding drum 40.
  • the travelling hoist 38 is shown as comprising a carriage 41, FIG. 7, mounted on the lower iianges of the monorail 30 by means of opposed pairs of rollers 42 each suitably journalled on the carriage 41 and positioned to engage said lower flanges.
  • a reversible motor 43 is mounted on the carriage 41 and connected to drive through suitable gearing one of the rollers 42.
  • the two stretches of the cable 44 between the winding drum 40 and the anchored end of the cable 44 pass under the sheaves of the loading block 45 which by means of a hook 46 and a chain connection 47 carries a grapple 48.
  • the grapple 48 is shown as consisting of a frame 49 carrying at its corners upstanding arms 50.
  • the arms 50 carry at their free ends horizontal outwardly directed plates 51 terminated by downwardly turned and inturned hook shaped ends 52.
  • the arrangement of the grapple 48 is such that it may be lowered by means of the hoist 38 inside of an empty mine car 23 into the load receiving space thereof until the plates 51 come to rest against the top of the side walls of the mine car 23 with their hook shaped ends 52 lying closely adjacent the side walls.
  • the opposed side walls of the mine cars are provided with two pairs of downwardly pointing angle brackets 53 into which the inturned hook shaped ends 52 of the grapple 48 are moved through longitudinal displacement of the grapple 48 relative to the mine car 23.
  • transverse abutment plates 54 are welded to one side of the angle brackets 53 preventing axial displacement lof the ends 52 in the brackets 53 in one direction, while movement in the other direction is prevented by means of a locking pin 55 connected by a chain 57 to the base of one yof the hook shaped ends 52 of the grapple 48 and inserted in a hole 56 in the side wall of the mine car 23 adjacent the corresponding angle bracket 53, FIG. 9a.
  • brackets 60 In the modification of the monorail beam illustrated in FIGS. and 1l there are provided inverted T-shaped brackets 60 the horizontal portions of which serve as journals for a pair of rollers 61.
  • a monorail beam 62 is supported for longitudinal movement on the rollers 61.
  • the monorail 62 consists of a horizontal elongated section 63 carrying welded-on angle irons 64 forming opposed horizontal inner guideways for the rollers 61 and a longitudinally extending opening between the angle irons 64 through which the vertical shanks of the brackets 60 protrude.
  • a centering piece 65 guided between the angle irons 64 forms the central portion of the brackets 60 and serves to prevent the rollers 61 from occupying oblique position in the monorail 62.
  • the opposed free end porrtions of the elongated section 63 serve as a trackway for rollers 66 arranged to travel along the monorail 62 and forming part of a lifting means or hoist 67 equipped in full analogy with the travelling hoist in the FIGURES 1-7.
  • the T-brackets 60 cooperate threadedly with spanner nut bodies 33 threadedly carried by brackets 68.
  • Each bracket 68 is connected to the underside of a plate 69 which by means of bolts 70 may be directly connected to arches or rails 71 forming part of the tunnel lining or especially arranged for carrying the monorail 62.
  • the travelling hoist 38 With loading in progress the travelling hoist 38 is moved along the monorail 30 to a position over car B and the grapple 48 is lowered and locked to the brackets 53 of car B. Thereupon car B is lifted to the elevated dotted position in FIG. 1 by means of the hoist 38 whereupon the hoist together with car B is advanced over and past the intermediate space between the rest of the spring and the load receiving station to a position illustrated by full lines in FIG. 1 over or slightly behind the load receiving station and car A. As soon as loading of car A is finished, the loading machine 22 moves lto the rear to the dotted line position in FIG. 2 together with car A under and past the elevated car B to the space between the string and the loading station. This space forms an intermediate station for receiving loaded cars.
  • the loading machine 22 is uncoupled from car A and is again advanced toward loading position as illustrated in full lines in FIG. 2 past and under car B.
  • car B is swiftly lowered by means of the hoist 38 from the elevated position to the rerailed position of FIG. 3 whereupon the grapple 48 is disconnected from car B and then again elevated.
  • the loading machine is coupled to car B and these two units then advance to continue loading operating as shown in FIG. 4.
  • the next car in the funloaded string i.e., car C
  • the loading and shifting cycle is repeated until depletion of the empty mine car supply.
  • a new roof bolt 35 is connected centrally to the roof of the tunnel in front of the row of roof bolts 35 and a carrying bracket 311 is connected thereto.
  • the entire monorail 30 is displaced in the forward direction sliding in the brackets 31 until the forward end of the monorail 30 is caught and slidingly received in the new bracket. 311.
  • the forward displacement of the monorail may as shown in FIG. 5 be performed with the help of the loading machine 22 and a rope 72 drawn between its coupler 25 and a hole 73 at the rear end of monorail 30, or may be performed in other ways.
  • a mine car rerailing plate 75 FIGS. 12, 13.
  • the plate 75 is provided with longitudinally spaced parallel grooves 76 for the anged wheels of the mine cars and for location of the plate 75 between and on the trackway 26 close at the load receiving station.
  • the plate 75 has a V- shaped guide rail portion 77 which when the mine car is lowered on the plate 75 guides the wheels of the mine car 23 into the grooves 76 and on the trackway 26 as soon as the car 23 is displaced longitudinally a sutiicient distance with respect to the plate 75.
  • Longitudinal channel irons 78 may for strenghening purposes be provided on the underside of the rerailing plate 75.
  • said overhead trackway is a beam extending longitudinally of said tunnel and including supporting means for holding said beam longitudinally movably along the roof of said tunnel, and means for displacing said beam longitudinally of itself selective to said supporting means.
  • said means movable along said overhead trackway includes a carriage on said beam adapted to travel along said beam, means for moving said carriage one Way or the other along said beam, and lifting means carried by said carriage for lifting -said cars above the top of the remaining cars disposed on said tunnel floor.
  • said supporting means includes roof bolts anchored in the roof of said tunnel and brackets disposed upon said roof bolts for supporting said beam slidably longitudinally of itself.
  • said hoisting and suspending means comprises a hoist and a loading block suspended therefrom, a grapple suspended from ⁇ said loading block for insertion into said cars and havin-g a substantially horizontal frame with upstanding arms extending therefrom, means for connecting said block centrally of said grapple, and means for detachably connecting the upper ends of said arms to said lateral flanges on said cars whereby said horizontal frame of said grapple is substantially parallel with the bottom of said cars rand said grapple and frame and loading block are disposed substantially within said cars.

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  • Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Environmental & Geological Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Geology (AREA)
  • Excavating Of Shafts Or Tunnels (AREA)
US199461A 1962-06-01 1962-06-01 Method for loading mine cars and loading apparatus therefor Expired - Lifetime US3219199A (en)

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Application Number Priority Date Filing Date Title
US199461A US3219199A (en) 1962-06-01 1962-06-01 Method for loading mine cars and loading apparatus therefor
CH677863A CH423677A (de) 1962-06-01 1963-05-30 Verfahren zum Umsetzen der einzelnen in Reihe hintereinander angeordneten Grubenwagen beim Füllen mittels einer Lademaschine vor Ort in einem Tunnel-, Stollen- oder Streckenvortrieb, und Einrichtung zur Durchführung des Verfahrens

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305047A (en) * 1965-02-11 1967-02-21 Ingersoll Rand World Trade Ltd Apparatus for shunting mine cars or the like
US3731976A (en) * 1970-09-14 1973-05-08 Linden Alimak Ab Mining methods using equipment suspended from roof-mounted rails
US3990746A (en) * 1975-06-09 1976-11-09 Gewerkschaft Eisenhutte Westfalia Apparatus for and a method of storing and transporting lining sections in an underground tunnel driving installation
US4098415A (en) * 1976-02-17 1978-07-04 Continental Oil Company Method for rotating hose
US4116134A (en) * 1977-03-03 1978-09-26 Mcneil Corporation Hangers for overhead suspended track
US4255070A (en) * 1979-12-20 1981-03-10 Mcneil Corporation Single-bolt roof suspension for overhead track
US4286523A (en) * 1979-09-12 1981-09-01 Voy Manufacturing Co. System for supporting overhead trolley rail
WO2021045722A1 (en) * 2019-09-03 2021-03-11 Loyer Harold Bernard Mining apparatus and methods
US20220325626A1 (en) * 2019-09-09 2022-10-13 Sandvik Mining And Construction G.M.B.H. Connection device and system for suspending a monorail beam from a roof bolt

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US440907A (en) * 1890-11-18 Freight-car
US1052174A (en) * 1912-11-29 1913-02-04 James F Reilly Portable overhead trackway.
US1546700A (en) * 1924-12-03 1925-07-21 Allen Orren Car-loading system
US1836444A (en) * 1928-11-15 1931-12-15 Hazel Atlas Glass Co Transfer device
US1930608A (en) * 1930-10-17 1933-10-17 Jeffrey Mfg Co Air lift transfer device
US2587362A (en) * 1949-04-20 1952-02-26 Joy Mfg Co Tunnel mucking apparatus
US2655360A (en) * 1947-09-20 1953-10-13 Atlas Diesel Ab Method and means for tunneling or the like in rock
US2670859A (en) * 1949-07-01 1954-03-02 Webb & Knapp Inc Automobile parking system
US2796999A (en) * 1951-07-26 1957-06-25 Joy Mfg Co Tunneling apparatus
US3062360A (en) * 1959-02-18 1962-11-06 Goodman Mfg Co Roof suspension means for a flexible strand conveyor

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US440907A (en) * 1890-11-18 Freight-car
US1052174A (en) * 1912-11-29 1913-02-04 James F Reilly Portable overhead trackway.
US1546700A (en) * 1924-12-03 1925-07-21 Allen Orren Car-loading system
US1836444A (en) * 1928-11-15 1931-12-15 Hazel Atlas Glass Co Transfer device
US1930608A (en) * 1930-10-17 1933-10-17 Jeffrey Mfg Co Air lift transfer device
US2655360A (en) * 1947-09-20 1953-10-13 Atlas Diesel Ab Method and means for tunneling or the like in rock
US2587362A (en) * 1949-04-20 1952-02-26 Joy Mfg Co Tunnel mucking apparatus
US2670859A (en) * 1949-07-01 1954-03-02 Webb & Knapp Inc Automobile parking system
US2796999A (en) * 1951-07-26 1957-06-25 Joy Mfg Co Tunneling apparatus
US3062360A (en) * 1959-02-18 1962-11-06 Goodman Mfg Co Roof suspension means for a flexible strand conveyor

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3305047A (en) * 1965-02-11 1967-02-21 Ingersoll Rand World Trade Ltd Apparatus for shunting mine cars or the like
US3731976A (en) * 1970-09-14 1973-05-08 Linden Alimak Ab Mining methods using equipment suspended from roof-mounted rails
US3990746A (en) * 1975-06-09 1976-11-09 Gewerkschaft Eisenhutte Westfalia Apparatus for and a method of storing and transporting lining sections in an underground tunnel driving installation
US4098415A (en) * 1976-02-17 1978-07-04 Continental Oil Company Method for rotating hose
US4116134A (en) * 1977-03-03 1978-09-26 Mcneil Corporation Hangers for overhead suspended track
US4286523A (en) * 1979-09-12 1981-09-01 Voy Manufacturing Co. System for supporting overhead trolley rail
US4255070A (en) * 1979-12-20 1981-03-10 Mcneil Corporation Single-bolt roof suspension for overhead track
WO2021045722A1 (en) * 2019-09-03 2021-03-11 Loyer Harold Bernard Mining apparatus and methods
US20220325626A1 (en) * 2019-09-09 2022-10-13 Sandvik Mining And Construction G.M.B.H. Connection device and system for suspending a monorail beam from a roof bolt
US12385189B2 (en) * 2019-09-09 2025-08-12 Sandvik Mining And Construction G.M.B.H. Connection device and system for suspending a monorail beam from a roof bolt

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CH423677A (de) 1966-11-15

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