US1824954A - Mining machine - Google Patents

Description

Sept. 29, 1931. M. P. HOLMES 1,824,954

MINING MACHINE Filed March 19, 1930 2 Sheets-Sheet l l/wzn' TOR NORRIS HOLMES- AW" A-mmm Sept. 29, 1931. I M, P HOLMES 1,824,954

MINING MACHINE 'Filed March 19, 1930 2 Sheets-Sheet 2 //YVEIY TOR Nonms R Ho I756.

"Am; AMM- Patented Sept. 29, 1931 onms r.

HOLMES, or cLAnnMoN'r, NEW 'n AMPsnmEiassxGNoa, To, sUL IvaN MACHINERY coMrANY; a ooitroaarronfor' massacnnsnr'rs Application meg aren 1a, '19ao.= Serial 11 ,437,283;

This invention relates to improvementsin"? mining machlnes and'more particularly has j reference to improved flexiblefeedin'g means for a coal mining machine of the continuous.

cutter, bottom cutting type.

An object of 'thisinvention 1s to provide an improved mining machine feeding means and more particularly improved *flexible feeding means for a coal mining machine of the room and pillar type. Another object is to provide an improved fiexibleffeeding means for a room andpillar type-mining I forwardly lengthwise thereof is a" plane cut machine whereby themachine is tea and guided in 15. manner.

improved feeding disposed axes extending atoblique angles and advantages of this invention will, however. hereinafter morefully appear? In the accompanying drawings there is In these drawings,' v

1 is a planvievv ofjtheillu strative embodiment of the improved'mining ma as chine.

' Fig. 2 is an of thefeeding end of the machine shown in Fig.1.

machine shown in Figs. 1 and 2. "Q

the improved feeding'mechanism.

Fig. 5 is a centrallongitudinally extending line 55 of Fig. 4.

lire c -e f Fig. 5.

In this illustrative embodiment "of the invention the improved feeding meansjiis;

- pillar" type, varioiisnovel features of the improved feedthe 'machineis slidably supported for move-1..

an improved and more flexible A further object i's'tojprovide an means of "the aforesaid f character wherein the relatively rotatable feed operating and controllingjmembers andthe driving means therefor are arranged'in 29 an improved manner'on the machinwhereby an extremely compact feeding mechanism may be had, the 'fe'edopera'ting andtontro'lling members beingarranged on angularIy' fromthe central longitudinal vertical plane of the machine. These and othen'jobjects,

1 machine in a manner 'machineaframe 1s a herein "preferably of the reversible electric. enlarged side elevational-view d I I ldisposed and extending longitudinally of the fmachine. Fig. 3 IS a rear elevational view ofthe v i through any approved transmission mecha- Fig. 4 is an enlarged horizontal sectional nism', which maybe of the same general type" view illustrating the structural details-of vertical sectional view taken substantially on embodied-in a m1 mining machine of at continuouscutter, bottom cutting, room and although it is evident-that the ingmeans may be incorporated in coal min-" 'ing'machines of various other types 'The mining machine generally comprises. a low I compact machineframe or body'l having a smooth plane-bottom surface 2.upon which ment over the'mine bottom. Secured rigid .ly withinthe machine frame andp-rojec'ting ter 'bar 3-supporting on its marginan endless cutter'bit carrying cutter chain 4. -Arranged: ina novel--ma'nne'ras hereinafter described ontthe' rear-fend of the machine frame are? relatively rotatable feed operating and con trolling members 5 and 6, herein in the form of cable winding or haulage drums, cooper-' 'ating'with'flexible feeding and controlling cables 7 and'8 respectively. As shown in Figswl and 3, arranged in a novel manner I a on Vertical axes at the rear end of the machme? frame adjacent the feed and controlling drums are guide sheaves 9, 10, 11 and12, while-arranged at the opposite sidesv 0f the vfront end of the machine frame ar ei guide sheaves 13 and 14 and these guide sheaves are adapted 'to guide the feed and controlling 8 f cables dnring j the various operations ofthe well understood in.the' mining machine art. Carried centrally by the low compact motor 15,

typeghaving its power shaft 16 horizontally" The'cutter chain dis operatively. I

connected to the front end of the motor shaft" as thatfdisclosed in my copending applica- 'driven from the rear end of the motor shaft 16 through improved transmission connections tobe now described. Now referring to the improved feeding; Ineansand more particularly to the improved driviri'gmeans therefor, it will be-noted that secured to the rear end of the motor shaft 16 is a. spur pinion 17 meshing with a spur gear 18 (see Fig. 6) in turn meshing with a spur gear 19 keyed to the front end of a horizontal shaft 20. The shaft 20 extends longitudinally o'fthe machine and is suitably journaled within the lower part of the feed-5 frame section. As shown in Figs. 4and 5, keyed to the shaft 20 intermediate its ends is a worm 21 having meshing ther with atjits opposite sides worm wheels 22 and 23 rota't-f vertical axes at the opposite mg on parallel sides of the central longitudinal median line of the machine.

ly suitably journaled within the fee frame sectionand having fixed theretorwormsfle and '27 respectivel Meshing with the worm 26'is slow speedworinwheel 28 whi1e a similar slow speed worm wheel 29fme's'hes 3 As shown, these wormcentral longitudinal vertical plane of themachine; The worm, wheels'2'8 arid'QQ are con nectible with'their respective shafts by Inn-l Keyed to the outer ends of the shafts 30 and 31 are gears 34 and 35 respectively meshing with the teeth of internal gears 36 and 37 herein. formed integral with the haulage drums 5 and '6. It will thus'be seen that:

when the clutch 32 is applied the feed drum 5 may be driven in'win'ding direction at a relat vely slow speed appropriate for cut ,ting; through gearing 17,18,49

I shaft 20, worm-gearing '21, 22, 26, 28, shaft30 and gear 34-meshingi with theinternal gear36- Eachof these drums srotatably supported sagcured to the drum. Also when the clutch is speedthrough a similar train ofgearingj:

Now referring to the'xfast 's'peed'df'iving means for :the feed and controlling drums, itwill 'be'not'ed that keyed also to rthe-shaft fld is a'jworm-38 having-meshing therewith at its opposite ,sides worm tating on parallel vertical axes at the opp0- site sides of the central longitudinal vertical These wd'rm wheels are'ikeyedto vertical shafts-41- and 42 "res pec=.. tively, suitably journaled within the. feed frame section and theseshafts. have fixed theretoworms43-and 44 meshing with fast 4 speed worm wheels" 45' and .46 respective/1y, rotatably supported on the an-gularl'jv dis-T" noted that... an improved ,-flexible feeding plane of the machine.

posed shafts 30 'and 31in coaxial relation with the worm wheels 28; and -29 worm wheels 45 and 46areeconnectible with discclutehes 47 and'48 respectively, 1 It will "thus befseenth-at when the friction clutchj471 These worm .wheels, arekeyedto vertical shafts 24 and 25 res ective-.

30 and 31 respectively, suitably-' tiple discclut'ches 32 and 33 respectively" applied'the winding drumG may be whelsr39 and 40mm? n which the bearing structure is enclosed. Va rious' modes 0foperation of the improved feeding means will be clearly apparent to those skilledin the mining machine art. and

These" inf-the continuous. cutter, bottom cutting the shafts 30 and 31 by means '--of multiple is applied, the feed drum 5 may be driven in winding direction at a relatively fast haulage speed through spur gearing 17 18, 19, shaft 20, worm gearing 38, 39, 43, 45, shaft 30 and gear 34 meshing with the internal gear 36 secured to the drum. v Also when the friction clutch 48 is applied; the controlling .ldrumt6 may be driven in winding direction at a similar speed through a similar gear and 6 may be driven in winding direction either separately or simultaneously at relatively high speed or at relatively low speed ;and-tha t npon partial. release of the friction clutches the drums may rotate in unwinding direction. under various degrees of frictional resistance When the-friction clutches are entirely released the", drums may freely I'OtHtG. I l v i 31am cylindrical. pressureplates 50' and 51 having projecting fingersextending through =apertures'formed in the end; plates of the '1 clutch-housing and worm-wheel respectively. ilnterposed betwee'n these pressure plates for "each of the sets of friction clutches are pivoted'shipper yokes 52 and-53 respectively,

each having an operating handle, 54 and 55,

conveniently-located at the top of the machine. It;will ,thu'sbe seen that-the parts are so arrangedthatuonly-one clutch of one set maybe applied at one time. v Asmentioned above, the feed and controlling-drums ,5 and 6 are arranged on angularly disposed axes extending at oblique angles; from the central longitudinal vertiof the rear end "of the feed frame, section.

on horizontal- :stub shafts 56 and 57 proj ecting laterally from: plates 58 detachably secured totheconver-ging vertical side walls of they feed frame section. These stub shafts support anti-friction bearingson which the drumsare rotatably mounted and the drums .are eachcomposedof two parts secured toether to form-an internal chamber 59 withas the method =of use of a room and pillar mining machine is well known, a description ofthe general modeofoperation of themachine is thought urmecessary. As aresult of this..invention it will be means'is provided for a coal mining machine type whereby the machine is fed and guided cal plane of the machine and in the present instance are arranged \onthe opposite sides the feed and controlling drums on angularly disposed axes extending at obliqueangles from the central longitudinal vertical plane of the machine, thefeeding mechanism is rendered extremely compact both laterally drums it is possible to effect rotation of the drums in winding direction by power either separately or simultaneously at relative'ly low speed or at relatively high speed; or-to'- permit rotation of the drum inunwinding direction under various degreesvof frictional resistance or without such resistance, there by rendering the machine well adapted to accommodate itselfato the various mining conditions encountered in room and pillar parent to those skilled in this art.l 7 While there is inthis application specifically described one form which the invention may assume in practice, it will'be under- "stood that this form of the same is shown for purposes of illustration and that the invention may be modified and embodied in various other forms without departing fromits spirit or the scopeof the appended claims.- 1' What I claim as newand desire to secure by'Letters Patent is 1.'A mining machine feeding mechanisiir including relatively rotatable feed members, each adapted to cooperate directly with flQXlble feeding means andldisposed on axes at oblique. angles to the central longitudinal median line ofthe machine 2; A mining machine feeding mechanism including relatively rotatable feed members, "Teach adapted to cooperate directly with fiexi-,

ble feeding means and disposed at the opposite sides of the rear end of the machine with],

their axes at substantially-right-angles, one of said members lying within atransverse 'EQZOHG bounded by parallel transverse, vertical planes perpendicular'to the central longitudinal vertical plane of the machine and respectively including the foremost and rearmost points on said other member.

each adapted to cooperate directly with flexible feeding means and disposed a tthe rear:

end of the machine with theiraxes horizontal. and at substantially right angles one of said members lying within a, transverse izone bounded by parallel transverse vertical planes perpendicular to the'central longitudinal Yvertical plane of the machine and'respectively including the foremost and rearmost-points on said other member. Y n

each adapted to cooperate directly with flexible feeding means and disposed: with." their machine,. .7 i. i a. v i g 5. A mining machine feeding mechanism including arotatable feed operating member adapte'di to cooperate directly with flexible axes horizontal and at oblique angles to the central :longitudinalj'median line of the feeding 'means and disposed with its axis 7 horizontal and at"a"-substantially oblique angle to the central longitudinal median line of the inachine -withits" axial; line sloping forwardlyas'it approaches said-niedian line.

6. A mining'machi'ne feeding mechanism including relativelylrotat able feed members each'adapted to'cooperate-directlywith flexi 1 Me feeding means'and disposed at the rear end of the machine with their axes horizontal' andfl'a t substantiallyoblique angles to and at opposite sides of the-central longitudinal a work. These and other advantages of thef improved feeding means will be clearly-'apverticalplaneof the machine.

including relatively rotatable. feed operating cooperate directly with: fiexiblefeeding means with-their axes at substantially right angles,

and controlling a members each "adapted to oneof said members lying within a-transverse zonebounded by parallel transverse vertical planes perpendicular to the central longitudi I nal-vertical: plane oft-he. ina-chine'and respec tively including the foremost and rearmostpoints onsaid' other member,-and motor op+- erated driving means for saidmembers.

8, mining machine'feeding mechanism' 1 including relatively rotatable feed operating I and controlling members each adapted to cooperate directly with flexiblelfeeding means centrallongitudinal medianline of the maand disposed on axesat obliqneangles to'the f chine and motor operated'drivingmeans forincluding relatively rotatable feed ope-rating;v

and disposed at the..-'rear1end of the machine at opposite sidesof thelcentral'longitudinal;

median lin'e of the latter andwith their axes at substantially right angles, one'of said-mem- *bers lying within a transverse zonebounded SI 3. A mining machine feeding mechanism. including relativelyrotatable feed members by parall'el'transverse vertical plane perpendicularto the central longitudinal: vertical 5;

plane of the machine and respectively includingthe foremost a nd rea-rin'ost pointsi onsaid other member, and motor operated -.ClI1V1I1g and controllingmembers each adapted to cooperate directly with flexible feeding means 1 and disposedatthegreariend of the machine with theirg axes horizontala and at substan tially'rightiangl'es, one o'f sa id. members lying within a transverse: zonebounded by parallel i transverse vertical planes 'perpndicularto -;thecentral=longitudiiialxverticalplane of the 5: right angles.

. adapted to cooperate directly feeding means and disposed with. its axis hori- 'machine and lespectivelyincluding thcforemost and rearmost points on said'other member, and motor operated driving'mea-ns for saidmembers.

11. A mining machine feeding mechanism including relatively rotatable feed operating andcontrolling members. each adapted to co operate directly with-flexible feeding means and disposed with their" axes horizontal and v,at; oblique angles to the central-longitudinalmedian line of the machine; and-motor operated driving means for said members.

12. A mining ma'chinefeeding mechanism,

including a rotatable feed "operating-member with flexible zontal and at asubstantially oblique angle to the central longitudinal? median "11116 of. the machine with its axial linesloping forwardly'as it approaches said median line, and motor operated driving meansfor said member.

13. A mining machine feeding mechanism including relatively rotatable ifeed' members.

each adapted to cooperate dir'ectlyEwith :fieXi ble feeding means andedisposed:withinthe lateral limits of the machine on axes at oblique angles :to thecentral longitudinal median lineof the machine. I

14. A mining machine feeding mechanism including relativelyrotatable feed-members each adapted'to'cooperate directlywith flexible feeding means and disposed within the lateral limits of the machine at-the-rear end of the machine withtheiraxes at substantially 15; A mining machine feedingmachanism including relativelyrotatable feed" operating and controlling members eachadapted to cooperate directly with flexible feeding means and disposed at the same end of themachine 1 with their axeshorizontal and at substantially right angles, one of said members lying Within a transverse zone "bounded-by:parallel transverse vertical" planes ,perpendiularto the central longitudinal verticalxplane of the machine and respectively including theforemost and'rearmost-points onsaid other memv said members.

: 165A'minin machine feeding mechanism including relatively rotatable feed'operating andcontrolling members each adapted to cooperate directly with-flexible feeding means and disposed at the same end of the machine at opposite sides of the-central longitudinal median line of the latter and with their axes ber,"and' motor operated "driving means for at substantially right angles, one of said mem'-- bers lying within a transversezone bounded byparallel transversesvertical planes perpendicular to the "central longitudinal vertical plane of the machine and respectively including the foremost and rearmost point-s said other member; and motor operatedflriving means for said members. f r 1 A mining machine feeding mechanism including relatively rotatable feed operating and controlling members each adapted to cooperate directly with flexible feeding means and disposed in symmetrical relationat the jopposite sides of thesame end of the machine With theiraxes horizontal and at substantially right angles, and motor operated driving means for-said members. i

'18. A mining machine-feeding mechanisms including relatively rotatable feed members each adapted to cooperate directly with flexiblefeeding means and disposed in theisame transverse. zone Withinthe lateral limits ofthe machine -at the sa'meend of the machine- Witht'heiraxes at substantial-1y right angles.

-19.' A mining machine feeding mechanism including a rotatable feed operating member adaptedto cooperate directly with flexible feeding means, said member rotating on a horizontal axis in a line whose portion between the feed operating member and the ,central'longitudinal vertical plane of the machine makes an acute angle with'the portion ofsaid plane lying to the rear of the point of intersection of said line 'with'said plane.

20. A mining machine feeding mechanism" including a machine frame', and a rotatable feed operating'member thereon adapted to cooperate directly with flexible feeding means and disposed wholly within the lateral limits of said frame with its axis horizontal and'at a substantial oblique angle to the'cen tral longitudinal median line of the machine.-

21. A mining machine feeding mechanism including relatively rotatable "feed members including relatively rotatable 'feed'members each adapted to cooperate directly with flexible feeding means and disposedoniaxes at oblique-angles to the central longitudinal median line of the machine, and motor oper ated driving means for said members including shafts one operatively connected to each feed member andarra'nged on axes extending in the same direction as said feed member axes, and a shaft extending longi- -'tudinally of the machine at the longitudinal vertical center thereof and operatively connected tosaid shafts. I

23. A miningniachine feeding mechanism including relatively rotatable feed members each adapted to cooperate directly with flexible feeding means and'dispose'd on axes at oblique anglesto the central longitudinal.- mediaii liiie ofthe machine, and motor open,

ated driving means for said members including shafts one operatively connected to each feed member and arranged on axes extending in the same direction as said feed member axes, a shaft extending longitudinally of the machine at the longitudinal vvertical center thereof and plural speed driving connections between said longitudinally extending shaft and said angularly disposed shafts.

In testimony whereof I aflix my signature.

MORRIS P. HOLMES.

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