USRE22563E - lindgren - Google Patents

Description

NOV. 2], 1944. LINDGREN Re. 2?,563

KEEP-CUTTING MACHINE Original Filed Aug. 26L 1940 5 Sheets-Sheet 1 ATTORN EY Nov. 21, 1944. F. A. LINDGREN Re. 22,563

KERF-CUTTING MACHINE Original Filed Aug. 26, 1940 5 Sheets-Sheet 2 ATTORNEY MRQ I v NOV. 21, UNDGREN 1 Re. 22,563 Y KERF-cUT'rINg MACHINE Original Filed Aug. 26, 1940 5 Sheets-Sheet a ATTQRNEY Nov. 21, 1944. F. A. LINDG REN KERF-CUTTING MACHINE 5 Sheets-Sheet 4 Original Filed Aug; 26, 1940 0 7 a m 2/3 06 N m m 1 Z A j Mm fi m a f M a F. A. LINDGREN Re. 22,563 KEEP-CUTTING MACHINE Original Filed Alig. 26, 1940 '5 Sheets-Sheet 5 Reissued Nov. 21, 1944 UNITED STATES PATENT KERF-CUTTING MACHINE rrank A. Lindgren,'La Grangej'IlL, assignorto Goodman Manufacturing Company, Chicago, "Ill.,"a; corporation of Illinois Original No. 2,298,392, dated October '13, 1942,

ScrialNo. 354,180, August 2 6, 1940. Application for reissue September 18, 1944,-Serial-No.

:12 Glaii'ns.

This invention relatesto improvements inkerfand elevating them for discharge into .a .con-

veyer or other receptacle.

A further object of my inventionis toprcvide a compact and simplified form of drive gearing for the feed drums and cutter chain drive sprocket, together with a novel form .of drive connection-to the slack eonveyers so that each will be driven in the proper direction during either direction of cutting.

Other objectsof my invention will .appear from time to time as the description proceeds and with reference to the accompanying drawings wherein:

Figure 1 is. atopplan viewofa mining machine constructed in accordance with my invention;

Figure 2 isa view in side elevation of the machine shown in Figure 1, showing the cutter bar in a coalseam;

Figure 3 is anenlarged fragmentary plan view of the machine shown in Figure .1, with one of thegear covers removedland withcertain parts broken away and-certain other parts shown in horizontal sectionin order to more clearly illustrate certain details .of the invention;

vFigure 4 is a fragmentary longitudinal sectional view of the. machine, drawn to-subs'tantially the same scale as Figure-3;

Figure 5 is a sectional view taken substantially,

along .line 5-5 of Figure 4;

Figure 6 is a rear end view of the machine, with certain .parts shown in section;

Figure '7 is a view in side elevation of the machine shown in Figure 1, with certain parts broken away in order to show certain details of the slack conveyer; and

Figure 8 is an enlarged fragmentary plan view of the forward partof the machine, with certain parts .removed and broken away and certain other parts shown in section, in order to illustrate certain details in the arrangement of the drive connection to the operative parts of the machine from the lower end of the motor shaft.

Referring now in particular to the drawings, the embodiment of my invention illustrated therein includes=generally a'mai'n-frame l'flhaving (a motor H "mounted at the forward end thereof. Said motor is :provided with a'm'ot'or shaft l2 arranged for rotation about a vertical axis, and a cutter" bar 13' mounted on said frame in planes beneath said mot'onproje'cts'forwardly therefrom. Said cutter bar has. a cutter chain I4 guided 'for movement thereabout, which is drivenfrom a s rocket It on theicwerend era vertical shaft I1, disposed-adjacentthe rear end of the machine.

'The machine is-moved'abo it the "mine 'o'nfits bottom and is sumpedinto and moved a'crcssthe coal face by means of a 'plu'rality of winding drums T9, T9 having flexible cables, 20 wound thereon and "adapted to be extended "therefrom and attached to fixed abutments' remote from the machine. "Each of said winding drums is adapted to be independently driven from "the motor II at either a high or low rrictionauy controlled speed through a separate planetary l8. Abrake band 2f contrdiledby' ah'an'd crank 22, in .the usual manner, is provided for teach (it said windingdru'ms to retardthe rotation of the respective drum when disconnected from the motor I I, so said drum may serve as a tail rope drum for the machine.

Referring now in particular to' the novel and compact form of drive connection to the cutter chain drive sprocket f6, and to the winding drums [9,1 9, an armature pinion 2'3 is mounted on the lower end of the motor shaft "l2,wi-thfin theinnerIateralboundaries o'f -the ciitte'r chain [4. Saidarmature'pin-ion meshes with an idler gear-T4 which meshes with and drives a spur gear25 on the lower end of a vertical sha'ft it. Said idler gear and spur-gear are likewise disposed within the inner lateral boundaries of the cutter chain, and are recessed-beneath the top of said chain and are-"housd-in a frame portion 21 of the main frame l'll, the outer lateral sides of whichform a'bearing'member along'which the cutter chain ['4' rides. 'lZh'is arrangement enables the compactness of the inachinefto be maintained, reducing the overalbhe'i'ght and width thereof, and permit said gears disposed within the inneriateral' bdllfidaties 6fthe path (if travel of the cutter chain to be complete- 1y housed and I'free'friiin dirt. A worm 29, mounted on the vertical shaft 26" intermediate theends thereof; meshes with afid drivesa worm gear in ona transversely extendin shaft 31. Said shaft is .jouriialed" within the hiibs' 3'3, 33 of casings 3 Lp'f the planetary geared reductiondev ic'es 18', IB and' ha's' spur fpiiiion's 36, '36

flanged portion 35 of the casing 34.

mounted on opposite ends thereof, which serve as sun gears for driving said planetaries (see Figure 5).

The planetaries l8, l8, as herein shown, are

each of a similar construction which is well known to those skilled in the art, so will only be shown and described insofar as is necessary to make my present invention readily understandable. with planetary pinions 31, 31 mounted in a cage 38. Said planetary pinions mesh with an internal gear 39 secured to the inner periphery of a Planetary pinions 46, 40 are mounted coaxially with the planetary pinions 31, 31 and rotate therewith and mesh with an internal gear 4| on a spider 42 keyed on a transverse shaft 45, for driving said shaft. A casing 43 is disposed adjacent the casing 34, and with said casing encloses said spider and the planetary gearing. Said casing has the,

cage 38 secured thereto. A friction band 44 engages the flanged portion' 35 of the casing 34 to hold it and the internal gear 38 from rotation. Another friction band 46 engages the casing 43, to hold said casing and the cage 38 from rotation.

When the casing 34 and internal gear 39 are held from rotation by the friction band 44, the shaft 45 will be driven through the sun gear 36, planetary pinions 31, 31 orbitally moving about said internal gear, and planetary pinions 40, 48 meshing with and driving the internal gear 4| at a relatively slow speed.

When the friction band 46 engages the outer periphery of the casing 43, the cage 38 will be held from rotation. The shaft 45 will thus be driven by the sun ,gear 36, meshing with the planetary pinions 31, 31 and driving said pinions and the coaxial planetary pinions 4U, 40, whichlast mentioned planetary'pinions mesh with and drive the internal gear 4| at a relatively high rate of speed.

A pinion 49 on the outer end of each transverse shaft'45 meshes'with an internal gear 50, freely mounted on a stub shaft 5| (see Figure 3). Each feed drum I9 is freely mounted on a hub of one of said internal gears and, as herein shown, is operatively connected with said internal gear by means of a pin 52 registering for engagement with suitable apertures formed in said feed drum' and internal gear, respectively. Said pin and apertures thus form a means to disconnect'said feed drum from its internal gear to permit free paying off of its associated feeding member, when desired. Each stub shaft 5| is mounted in a bearing boss 54, herein shown as being formed integrally with an outer cover 55 for a slack conveyer 56, one of which slack conveyers extends along each side of said cutter bar and is mounted within the lateral boundaries of the frame for the mining machine. Said slack conveyer will be more fully described as this specification proceeds. The shafts 45, 45 extend between the upper and lower runs of the slack conveyers, and said bearing bosses extend within the boundaries of said slack conveyers, in order to permit the width and height of the machine to be reduced.

The drive to the cutter chain drive sprocket |6 includes a. spur pinion 51, mounted on the upper end'of the vertical shaft 26 and meshing with an idler gear 58 (see Figures 3 and 4). Said idler gear meshes with and drives a spur ringgear 58, provided with a lower flanged portion 60 which is secured to an upper flange 6| ofa driving sleeve 62. Said driving sleeve is journaled on the" ver- The sun gear 36 of each planetary meshes tical shaft H, for free rotation with respect thereto, and has a clutch member 64, with depending jaws 65, slidably mounted thereon. Said jaws are adapted to be engaged with jaws E6 of a clutch member 61, secured to thevertical shaft l1, for driving said shaft. A suitable clutch yoke 68, mounted on a rock shaft 69, is provided for shifting said clutch member, to selectively C011? nect said cutter chain sprocket with said ring gear. The system of levers for, shifting said clutch member is not herein shown or described in detail since it is no part of my present inven tion and is well known to those skilled in the art.

Referring now to the novel form and arrangement of the cuttings collecting conveyers 55, 56, said conveyers are recessed within the sides of the machine frame and extend along oppositev sides of the machine in parallel relation with respect to the cutter bar I3 just outside of the path of the bits of the cutterchain l4. Each of said slack conveyers is. provided with a receiving end 10 open to the front of the machine and disposed adjacent the coal face when the cutter bar is fully sumped in the coal and is cutting across the coal face, and opening towards the coal face, to collect the slack withdrawn from the coal face by the cutter chain I4. One of said slack'conveyers is adapted to be utilized when the machine is cutting in one direction and the other of said slack conveyers is adapted to be utilized when the machine is cutting in an opposite direction,

construction so the construction of one only will herein be described in detail.

As herein shown, the slack conveyer 56 includes an endless chain 1| having spaced apart flights 11, 11 projecting outwardly therefrom. Said chain is trained about an idler sprocket 12 mounted on a transverse shaft 13, disposed adjacent the entering end 10 of the conveyer. From said idler sprocket'said chain extends in an upwardly inclined direction to, a drive sprocket 14 on a. transverse shaft 15. From thence said chain extends in'a forwardly direction over a bearing shoe 16, to and around the idler sprocket 12. The flights 11 are adapted to move material along a bottom 19 of a casing for the conveyer (see Figure 7) Said casing is herein shown'as being formed integral with the main frame I0 and is provided with a discharge end disposed above the ground and adjacent the rear of the machine, to discharge cuttings into a conveyer 8| which may extend along the coal face in parallel relation with respect thereto (see Figure 4). An opening 18 extending along the cutter bar, above the bottom plate 18, is provided on the inner side of said casing to permit the collection of the cuttings thrown laterally by the cutter chain as it passes by said opening (see Figures 3 and '1).

The drive to the conveyers 56, 56 is arranged to selectively drive said conveyers at a greater speed than the speed of the cutter chain and includes a chain and sprocket drive 82 which drives a bevel gear 83 on a vertical stub shaft 'i'Ihe drive :armngementnto thes'shafts "15, Girls thus such that each: of said. sinaftsv and thereonveyers 56, :56 a driven thereby, will :be fdr'rven opposite" 'directionsvwhile the. motor I l is rotating in one: direction. 'Ihe 'reaamitor-sosarranging this: drive: a to insure :that'; each cmiveyer will zzbe driven in the :proper z direction when cutting 'either 'fromfirightito left or from left to right. When-cutting from :right toleft, the slack conveyor on -the 1 left-handrsidexofl the machine will be in *op'eration' to: collect-the cuttings *andw'ill be connected tozthe motor H, to

- be driven in a direction move material up- -ward'ly along I the bottom 19 'of- *the 1 casing -86. When cutting from; left to right, the direction :of rotation-pf the motor II must :be"roversed*in order to drive 1 the cutter chain H in the :proper cutting'direction; Upon reversal of said motor, the 1 slack 'conveyer on the right -hand 1 side of -the "machine will be drivenin -'-a direction to move material upwardly along 1 the i bottom 1-9 of the casing' 80, sc -said slack conveyer-will collect and discharge the cuttings 'duringthis direction of "cutting.

It may be seen from the foregoing that a new and improved form of 'mining maohine hasbeen said conveyors-will collect these cuttings and convey them away -'fromthe ma'c'hinein either direction of cutting. that the machine is efiiciently 'constructed'for It "may further be seen cuttingin-reverse-directions with the conveyer recessed within and a part of the machine frameproper, enabling the low overalbheight; width and length of "the machine necessary for ready maneuverability and operation in confined spaces," to "be attained.

VVh'ile I haveherein "shown and described one form in-which my invention-maybe embodied,

"it will be understood that the construction thereof and the arrangement 'of the various parts may be altered "without departing from the'spirit and scope thereof. F'urthern'iore, "I do- "not wish to 'be construed as limiting my invention to the specific embodiment illustrated,- excepting" as it may be limited in the appendedclaims.

I claim as .my invention:

lpln'aminingmachine of the type slidable along the mine bottom on its bottom during cutting, a main frame, a cutter bar projecting forwardly from said main frame and having a cutter chain movable thereabout in an orbital path, and cuttings collecting means extending along the advance side of said machine from the lower forward end thereof including a conveyer extending along and recessed within the advance side of said machine and having a rereceiving end disposed adjacent said cutter chain and opening to the forward end of said machine and having a discharge end adjacent the upper rear end of said machine.

2. In a mining machine, a main frame, a motor, a cutter bar projecting from said frame and having a cutter chain movable thereabout in planes disposed beneath said motor, and a cuttings collecting conveyer extending along the advance side of said main frame to one side of said cutter bar and having a receiving end opensing to rthe {forward rend cf-said imcchine ,and alongside 'Df :said :cuttercchain, "for :collectinstthe cuttings :cut by said cutter chain, and 12a :"discharge end at: thenpper rearrend ;of--said main frame for:dischargingthe'acuttingsrto the; rearnof :saidmaimframe. 3.,Jn a mining imachine, a mainfiiazne, =:a :"motor, a. .cutter.;bar projecting ;from:;:said frame and having a mutter chain rmcvable' :thereabout l0 aepath extendingibeneath said rmotorsandzan upwardly ginclined cuttings collecting :conveyer extending along thezadvance :side of saidvmain rframevfnomithelowerforward end :thereof aopeningrto the forwardend thereof adjacent-said 15 r-cutter .chain, *for :collecting the cuttings dis- -charged L by said xcutter chain and :dischargmg them to the rear of-rsaid mainframe.

.4. :I-n a ;mining machine. of the "type .slidable along the mine :bottom ontits ibottomz-iduring cutting, a main 'frame, a cutter 2 bar- :prodecting forwardly from said main frame da-ind having' za --cutter chain movable. 'th'ereabout i in :an orbital 1 path, Steed mechanism .fonsai'd machine: incltiding a 1' teed-drum disposed :at 'one side of itihe -machine and a iiexib-le draft .idevice adapted to the wound thereon, and-a cuttings collecting 7 means extending along the advance side iofthe imachine and disposed'within the lateral bound :aries of said feed drum, said cuttings collecting wau'means including a conveyerdisposed "adjacent saidcutter chai-n and openingalongside of sald mutter-chain and to the forward en'd cftthe machine. 1

5. In a mining 'machine ofthe type sli dable along amine bottom'on its bottomdu'ring cutting,

amain frame; a cutter bar projecting-i forwardly from said main frame and having-a cutter chain -movable thereabout' =in an orbital pathflteed *mechanismfor said machine including a fel'z'd ilo-drum disposed at one side of the IHdChiflG-filid'jfl "flexible draft device adapted to be woundthereon, and a cuttings collecting means extending along the-advance sideof the machine and disposed within the lateral boundaries of saidfeed-drum, said cuttings collecting means including'an 'in- 'clined bottom portion disposed within the lateral 1 boundaries ,Of saidwinding drum and *extending in an upwardly inclined direction-from; the-forward" to the rear end of said-main'rrame-and conveying means for collecting and moving-mate- 'rial discharged fromsaid cutter'chain upwardly along said inclined bottom.

a mining machine of the type-*sli'dable along a mine bottom on its bottom during cutting, a'main' frame, a cutter-bar projecting forwardly from said main frame and having a cutter chain movable thereabout in an orbital path, feed mechanism for said machine including a feed drum disposed at one side of the machine and a flexible draft device adapted to be wound thereon, and a cuttings collecting means extending along the advance side of the machine and disposed within the lateral boundaries of said feed drum, said cuttings collecting means including an inclined bottom portion disposed within the lateral boundaries or said winding drum and extending in an upwardly inclined direction from the forward end of said main frame, and a conveyer for moving material upwardly along said bottom including an endless chain, a drive sprocket therefor rotatable about a horizontal axis, and spaced apart flights projecting outwardly from said chain, said cuttings collecting means being open to the forward end of the machine and along said cutter chain.

7. In a reversible mining machine of. the type slidable along a mine bottom on its bottom during cutting, a main frame, a motor, a cutter bar "projecting forwardly of said main frame and motor and having a cutter chain movable thereabout in an orbital path, feed drums disposed at opposite sides of the machine and adapted to have flexible draft devices wound thereon, and cuttings collecting means extending along opposite sides of the machine and disposed Within the lateral boundaries of said feed drums including ;conveyers extending along said cutter chain from the forward end of saidmain frame and opening Lalong opposite sides of said cutter chain and to the forward end of the machine, for collecting the cuttings discharged by said cutter chain during opposite directions of cutting.

8. In a reversible mining machine of the type slidable along a mine bottom on its bottom during cutting, a main frame, a motor, a cutter bar projecting forwardly of said main frame and motor and having a cutter chain movable thereabout in an orbital path, feed drums disposed at opposite sides of the machine and adapted to have flexible draft devices wound thereon, and

cuttings collectin means extending along oppositesides of the machine and disposed within the lateral boundaries of said feed drums including conveyers opening along opposite sides of said cutter chain and to the forward end of the machine, for collecting the cuttings discharged by said cutter chain during opposite directions of cutting, and drive connections from said motor for selectively driving eitherof said conveyers in directions so the conveyer on the advance side of themachine will always be driven in a conveying direction during cutting in one direction and the conveyer on the side of the machine which is the advance-side in theopposite direction of cutting will be driven in a conveying direction upon re-,;, versal of said motor, for cutting in an opposite direction. l I

9. In a mining machine of the class described, a main frame, a motor disposed at the forward end of saidmain frameand having a vertical armatureshaft, a cutter bar projecting forwardly from said main frame and motor and disposed in planes extending beneath said motor, a cutter chain drive sprocket disposed rearwardly of said motor, anddrive connections from said motor to said cutter chain drive sprocket including an armature pinion and spur gear disposed within the orbit of said cutter chain and within the vertical limits of said cutter chain. I

10. In a mining machine of the class described,

a mainframe, a motor disposed at the forward end of said main frameand having a vertical armature shaft,'a cutter :bar projecting forwardly from-saidmain frame and motor and disposed in planes extending beneath said motor, a cutter chain drive sprocket disposed rearwardly of said motor, drive connections from said motor to said xcutter chain drivesprocket including an armature pinion .and spur gear disposed within the .orbit of said cutter chain and within the vertical limits of said cutter chain, and means for enclosing said spur gear and pinion and serving as a guide means for the cutter chain.

11. Ina mining machine of the class described, a main frame, a motor disposed at the forward end of said main frame and'having a vertical armature shaft, a cutter bar projecting forwardly from said main frame and motor and disposed in planes extending beneath said motor, a cutter chain drive sprocket disposed rearwardly of said motor, a pair of feed drums disposed at opposite "sides of said main frame and mounted for rotationabout transverse axes, drive connections from said'motor to said cutter chain drive sprocket and feed drums including. an armature pinion and spur gear disposed within the orbit of said cutter chain and within the vertical limits of said cutter chain, and means for enclosing said spur gear and armature pinion and serving as a guide shoe for said cutter chain.

12. In a mining machine of the class described.

a'main frame, a motor disposed at the forward end of said main frame and having a vertical armature shaft, a cutter bar projecting forwardly from said main frame and motor and disposed in planes extending beneath said motor, a cutter chain drive sprocket disposed rearwardly of said motor, a pair of feed-drums disposed at opposite sides of said main frame and mounted for rotation about transverse axes, and cuttings collecting means extending along opposite sides of the machine and disposed within the lateral boundaries of said feed drums and including conveyers opening along opposite sides of said cutter chain and to'the forward end of the machine, for collecting the cuttings discharged by said cutter chain during opposite directions of cutting, drive connectionsfrom said motor to said cutter chain sprocket, feed drums and conveyers, for independently driving said cutter chain sprocket, feed drums and conveyers including an armature pinion and spur gear disposed within the path of said cutter chain.

FRANK A. LINDGREN.

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