US1878036A - Drilling mechanism - Google Patents

Description

Sept. 20, 1932. F. w. voDoz DRILLING MECHANISM Filed Jurie 11, 1928 2 Sheets-Sheet l 12150511 iol EL. P

w 4 .nhmun/ //W Sept. *20, 1932. F Wl VODOZ 1,878,036

DRILLING MECHANI SM Filed June'll, 1928 2 Sheets-Sheet 2 J6 I7 @l 74 39 /f c?? 5 j?? Y Q. N197 u l Q3 I l 80 94 L 95 5 A; 1I @z '1wi S7? j a. P5114 U50/riz@ 1 chineof the filed March f' use of a -vides a new and novel Patented sept. zo, 1932' UNITED rs'raiizs FREDERICK w. von'oz, i or WILMETIE, TUBING COMPANY, or cIIIcAGd ILLINOIS, AssIGNoR -To GooniJIAN 1vIANUrAcf ILLINOIS, A CORPORATION or ILLINOIS DRILLING MEcIIANIsivI Appiieation mea June 11, 192s. serial No. 284,471.

This invention relatesto improvements in drilling mechanisms, Aparticularly adapted for use in coal mines, and has for its principal object to provide a new and improved drilling vmechanism in combination with a mining machine or similar power mechanism and which may be mounted on and operated from said mining machine. Y Y

Otherobj ects of my invention will appear from time to time as this cspecification proceeds. f Y Y A prior application Serial Number 263,402, 21, 1928,- shows an improved form of drilling mechanism in combination with a coalmining machine of the shortwall type. My present invention differs from my prior invention inthat an improved form of drilling mechanism is shown which eliminates the feeding bar .for the drill and promeans of feeding said drill into the coal. Y

The drilling mechanism herein illustrated is shown in combination with a mining mabreast type, which is well known While said drilling mechanism may be mounted on a shortwall machine, or on any type of power device, as well as on a breast machine, it is particularly desirable to to the art.

3h mount said drilling mechanism on .a breast machine in driving narrow rooms or entries in thatv the drill is immediately in position to drill a hole in the mine wall when the machine has completed its undercutting operation.

My invention may -be more clearly under.- stood with reference to the accompanying drawings, wherein i Figure 1 is a sidev elevation of a mining machine of the breast type having my invention applied thereto;

Figure 2 is an enlarged vertical partial sectional view of the drilling head taken substantially on the longitudinal center line i thereof Figure 3 is a cross-sectional view taken on line 3 3 of Figure 2;

Figure 4 is an enlarged fragmentary sectional view vof` the'driving mechanism for connecting the drillw'ith the mining machine motor; and

ving machine of the ordinary f nism for said Figure 5 is an end view of the driving mechanism, for connecting the drill with the miningmachine motor, with parts removed vand in section to 'more clearly show they details thereof. y Y

In thev drawings, one embodimenty of my invention is illustrated as applied to a minbreast type having a stationary frame 10 and a`movable frame 11.l The movable frame11 islreciprocably movable on the stationary framel() and has achain carrying cutter bar 12, projecting forwardly therefrom which is fed into the face of the coal to cut a kerf therein by forward movement of said movable frame on the stationary frame 10. The lcutting mechanism and meansfor reciprocably moving the movable frame 11 on the stationary frame 10 are operatively driven from an electric motor' 13 through a suitable gear train of the well known type generally used in mining machines of this design which-is not herein shown since it is no part of my invention.

A drilling mechanism is supported bodily on said machine, herein being mounted lon the rearward end thereof on a reduction gear supporting frame 15 for the driving mechahereinafter bedescribed,k and comprises in general'a member 16 trunnioned on the reduction gear supporting frame 15 having a tubular Varm 17 projecting longitudinally forwardly therefrom which in turn has a drilling head 18 adjustably mounted on its forward end. 1

' It. may here be seen that-the entire `drilling mechanism is trunnioned on the support 15 which is supported on the rearward end of the motor 13, which in turn is supported on the movable frame 11 and that when the movable frame 11 has finished its forward movement and the cutter bar 12 has undercut the coal to the desired depth, that said '1 drilling :mechanism which will Y J 20 on the movable :e heiter.

about the axis of the member 16. A member 19 is provided to support the drilling head 18 in any desired position of adjustment and extends from said drilling head to a member frame 11. A plurality of holes 21 are provided in the member 19 for Xing ,Seid memberto the member atthe various positions of vertical adjustment -of thev drilling head 18 by means of afnut 4and anyethereuteble device. 'The .drilling heed 1 8 is ,supported (on a member'22 which lits on 'the forward end of the tubular supporting arm 17. Thememher 22 may be clamped or held on the forward end of the tubular arm L17 ;by any,suitabl e means well known to the art (not herein shown.) so. asto be rotatable aboutthe tubular gilrm 17 andiheld inivariou's desired Apositions .of adjustment vwith respecttosaidarm. A `drill.Supporting member 23-istrunnioned on the forward portion of the member 22. `The drillsupperting memberf23 is made -upfof a -lQWer .pn-rtion' 23a and -an yupper fportion 236. Theupper portionk 235 and lower portion'2'3a farefheld :together fby suitable vnuts and .bolts a-:indicated at 24. A bearing-25 is provided 1.in uthe .drill supporting member :23 for .receiving the outer periphery of a hub .26 of a spur gea-r 27. The -extreme forward and flf'lewalfd portions of the `drillsupporting member y2 8 `form a nid-ing ,support for a .'iiliflll'lo.. I A,:spacing strip 32 is .provided to` holdthe drilLSuppOlting member-.23 .in Aits several an.- gful'ar positions ofad-justment `withrrespect to 'thfmember 22. llhespacing stri-13:32 Lis :fasftrled to` 'the/drill supporting memberI 23 vby illlel Ofafeap Screwfr orlany othersuitable hQld-ng .device land has a' plurality Aof holes 36 therein adapted to register `withva yhole inthemember 22 .and toybe fheld .to said .member ,by -means of :a .cap :screw .37 lor any -Qthersutableholdingrdevice.

@he pMQtal axis ,of the .drill supporting memhelf is tangential- .eto fthe pitch lineof :hefmurgear The spur gear 275isdriven hy aespurgearf .j .ournaled within `the mem- .-ber-22 and'ekeyedto a shaftf) .which is. driven frcmfthemQtor 123 :byqa suitable gear `train :whinh :will .hereinafter :more fullybe ex- .-plained. The gears v2 gand 38 are provided with relatively deep teeth chamferedat their .edges Sefthe gearz .maydrive-.the gear 27 in :all ipcsitiens Yof adjustment' of ythe drilling head1* l'wth IfeSpect tofithe ftubulararm 17. ,A @Win40 iis'prfwided .en the hubr-26 o .f .the .gear-127;, andisgin-tegral therewith.` The worm 4th-.has .fdr-.vingzI connection with. .a .worm gear 441 haying a ehub y42 thereon journaled in a hcusingit .on the Aupper portion 235 of the drillisupporti-ng member 28. A vhub 45 en theoppositeend.of-the worm gear 41 from the hub 42 is in the shape of a frustumlof afcone and-mayfbefengaged withthe inner periphery L ,of abobbin46 for driving said fbobbin. 'The housing 43 and-hub 45 respeeteto 4said shaft. are provided lto move 'housing 43 at "53. A 'nut' bobbin 46 is mounted on a raised portion 44 of a shaft 47. The shaft 47 is hollow for a portion of its length and is journaled in the housing 43 at one end.

The shaft 47 passes through the hubs 42 and 45 of the worm gear 41 and the shoulders 'formed iby the `raisedportion'44 about the of the worm gear 41 to lprevent end movement of said worm andshaft. A. rodg48 .isslidable in thehollow portion of the shaft47, ,A pin.49..ronriects the rod 48 with the bobbin 46 for engaging orzdisengaging the inner periphery of said bobbin with thehub 45 of the worm gear 41.

:Sllitlbleslots.'505D-are provided in the shaft 47 to allow for movement 0f the pin 49 with Suitable tlever 'means the rod T48 andi bobbin 46; longitudinally with' repecttothe fhub 45 of thelworm-gear 41. id'means herein .comprise-a member 51 freely mountedo'nlthe -ou-terrend-of' the rod 48 andabutting-a shoul- -der .on-said rod `and having lpivotal connec- 52 pivoted to the 54 and washer 55 tion with a forked lever is provided on the outer A tovprevent longitudinal movement of the `member 51 with respectto the rod 48;- `Move men-tof the Vforked lever52 in one direction orthe other fthereforeemoves the member 51 `and rod 48.-.to engage-or disengagetheinner periphery y of the bobbin 46v with the hub 45 vof `the worm gear41. :Locking Ameans are provided for .locking lthe lbobbin 46 yin `an engaged or disengaged position with respect to theihub .45.0f the worm gear41 whichiherein comprise a lever 56 pivoted tothe fforked lever 52 engageablewith apin 5.7 on the housing 43. f

Flexible powermeans of any suitable type gea-r l end of therod 48 which is Apreferably shown herein as a wire rope=60 is fastened to the bobbin 46` atonc endl and 4passes 4from .said bobbin rearwardly around asheave 61 on. the rearwardend'of the drill 30 and forwardly to the drill supr porting member 23 where .said Awire rope eis `ii-Xed at itsopposite cnd-toisaid drill support.- ing member. at162y temove the drill 30longi.- tudinally. with-respect'tothedrillsupporting member 23 as said flexible power means is wound on the bobbin 46. "Iz-he sheavefl is held in the-end ofafdrill feeding member 65 freely mounted on the rearward end vof the drill 30 sosaid drill may rotate withinsaid member. A thrust member -66 within ythe drill feeding member 65 abn-ts ,therearward Vend of the drill 30 .to prevent friction Ybetween the endgoftthe dri-ll- 30 and the y.drill feeding `member 65 as .said member is feed-V ing the drill longitudinally with respect to the drill supporting lmember 2 3. A forked member 70 is pivoted to vthe drill feeding member 65 and extends downwardly to the tubular arm 17 a prongof said fork being on eaeh side of said tubular `arm and slidable .into the coal whereby I eliminate the use-sofa thread or feeding bar andA support` said drill at a point adjacent theface of the ycoal-insurlnmanaccuratedrill hole and-lessening .the

possibilitiesof'binding of said drill and still arrange my :feeding devicel so that the drill may-be fedinto the coallto the entire depth of 'thefholegdesired'in one continuous operation.

Although I :have herein shown andn described one yform' 1n which my invention may be embodied in combination with afmining machineit will be understood that the constructionand arrangement of theparts may orpower device. f

-I claim as my invention:

1.In adrilling apparatus,-afdrill, af drilling head comprising a drill supporting member, a drill rotating-member on saiddrill supporting member, winding means supporting member, a sheave detachably con- .,nected with the rearward portion of said on said' drill drilla flexiblefeeding member passing rearwardly from said winding means aboutsa-id sheave and forwardly to said drill supporting member, and a member pivotally connected to said sheavc for holding said sheave in alignment lwith said winding means.

2. In a drilling apparatus, a drill, a drilling head comprising a drill supporting .member, a drill rotating member on said drill supporting member, winding means on said drill `supporting member, a drill`feeding member having` engagement with said drill compris.- ing a sleeve insertable on the end of said drill having a sheave on, the rearward end thereof, a flexible feeding member passing rearwardly from said winding means about said sheave and forwardly to said drill supporting member, anda member pivotally connected to said sleeve for holding said sheave in alignment with-said winding means. Y

.3. -In a drilling apparatus, a drill, a drilling head comprising adrill supporting member, a drill rotating member on said drill supporting member, winding means onsaid drill supporting member, a drill feeding member havingengagement with said drill comprising a sleeve having a sheave on the rearward end' thereof, a flexible feeding member passing Vrearwardly from said winding' means about said sheave and forwardly to said drill supporting member, 1 and a memberv pivotally connected vto said'drill feeding member for holding' said sheave in alignment withsaid winding'means.

4. In van apparatus of the class described, a drilling head including a drill rotating member, a drill, means for supporting said drilling head for drilling in a horizontal plane or various angular planes -with respect to the horizontal, means for feeding said 'drill including V'rection changing device onrthe rearwardend flexible feeding means, a `diof said drill adapted to be engaged lby said flexible feeding means and means for hold- .ing said-directionchanging device in alignmentwlth said flexible feeding means-comprising AaV member having connection with said direction changing device and adapted to engage said drilling head vsupporting y means.

5. In an apparatus of the class described,.a drillinghcad including a drill rotating member, a drill,means forzsupporting said drilling head for drilling in a horizontal plane or-va-rious angular planes withv respect to thel horizontal, means for feeding said drill incl'uding` llexible feeding means, a direction changing'device on the rearward'end ofsaid drilladapted to bev engaged'by said flexible feedingmeans and meansforholding said direction changing device in alignment with said flexible feeding means comprising a-deendino' member havin@ connection'r with said direction changing device andadapted to 'slidably engage said drilling head-supporting fmeans.

'6. In an apparatus of the class described, la. drilling head includingA a drill rotating member, a drill, means for feeding said drill including flexible feeding means, a direction changing device on'the rearward end of said drill adapted to be engagedv by said flexiblel feeding means and means .for holding said directionchanging device in alignment with said flexible feeding means comprising a'member having pivotal connection with said directionVchanging device and adapted tol slidably engage extraneous means., 'A i 1 7. 'Inan apparatusofthe class described, a vdrilling head including a drill rotating member, a drill, means for supporting said drilling head forzdrilling in a horizontal plane or various angular planes with respect tothe horizontal, means for feeding said drill including flexible feeding means, a direction changing device detachably connecti- -ble with the rearward end of said drill adapted tobe engaged by said flexible feeding means andimeans for holding said direction changing device in alignment .with said llexiblefeeding means comprising a member havingconnectionwith said direction changing device and adapted to slidably engage said drillinghead supporting means.

8. In an apparatus ofthe class described, avr drilling head including a drill rotating member, a drill', vmeans for feeding said drill including'flexible feeding means,'a direction changing device detachably connectible with the 'rearward end of saiddrill adapted to be engaged by said flexible feeding means and means for holding said direction changing device inv alignment with said llexible feeding :means comprising a member with respect to the drill supporting member es. Y Keyways 71 are provided in the drill 8() Vand extend substantially the entire length of said drill. Feather keys 72 are fixed on the inner periphery of the gear 27 to engage the keyways 71 torotate the drill 39 on rotation of the gear 27, and to allow said drill .to be moved through said gear as said drill is be ing rotated by said gear. The keys 72 are chamfered at their forward and rearward ends to eliminate the possibility of the keys 72 fouling in the keyways 71 on the 'drill 30.

It may now be seen that. rotation .of the gear 27 will rotate the drill 80 and willalso cause rotation of the worm gear 41 which will rotate the bobbin 46 when the inner periphery of said bobbin engages the hub 45 of s aid worm gear and thus wind in the flexible power device which will move the drill 30 longitudinally through the hub of the gear 27 to feed said drill into the material it is desired to drill. In cases of extreme load or strain on the drill 30 translational movement of said drill will automatically be stopped by slippage of the bobbin 46 on the hub 45 of the worm gear 41.

' The vsha-ft 39 within the tubular drill sup porting arm 17 has a spur gear 74 keyed to its lower end. The gear 74 is journaled on its hubwithin the member 16 and the pitch circle of said gear is tangential to the pivotal axis of the member 16. rhe spur gear 74 is driven byY a spur gear 75 journaled in the reduction gear supporting frame 15. The pitch circle of the gear 75 is tangential to the pivotal axis of the member 16 and the teeth Yof the gears 74 and 75 are relatively deep and chamfered at their edges to prevent binding between the teeth of said gears when the gear 75 is driving `the gear 74 at the' various permissible angles of adjustment of the tubular drill supporting arm 17. The gear 75 is keyed to a shaft 76 which is driven by a gear 78 keyed thereon. The gear 78 is in turn driven by a pinion 79V on a shaft 80 slidable longitudinally with respect to the reduction gear supporting frame 15. An internal Vgear 81 drives the shaft 80 and pinion 79 and is in turn driven by a pinion 82 keyed to a member 83 journaled in the gear support-ing frame 15 and having a socket therein fitting on an end of a motor shaft 84`of the motor 13. A portion 85 of said socket is squared to engage a squared end 86 of the motor shaft 84 so the member 88 may be driven by said motor shaft.

It may be here observed that the reduction gearsupporting frame 15 is split in two sections and that one section 89 forms an end plate for the motor 13, supports the drilling mechanism for pivotal movement thereabout, and serves as a support for the reduction gear mechanism, while another section 90 serves asa support for one end of the VVlongitudinally movable shat 80.`

Means are provided on the section 90 of the reduction gear supporting frame 15 for longitudinally moving the shaft 80, internal gear 81 and pinion 7 9, for disengaging said internal gear and pinion from the pinion 82 and gear 78 to disconnect the drill driving mechanism from the motor 13. Said means may be of any comprise a forked hand lever 92 pivoted to theV section 90 of the reduction gear supporting frame 15 and having pivotal connection with a member 98 freely mounted on the shaft 80. The member 93 abuts ashoulder on the shaft 80 at one end and a washer 94 at its other end held on the shaft 80 by a nut 95 threaded thereon, so that movement of the member 93 will cause movement of thev shaft 80. Locking means are provided to lock the forked hand lever 92 in an eXtreme inward or outward position with respect to the section 90 of the reduction gear supporting frame 15 for engaging or disengaging the drill driving mechanism with the motor 13 which herein comprises a lever 96 pivoted to the forked lever 92 and engageable with a pin 97 on the section 90.

Figure 1 shows the drilling mechanism on a breast machine, when said machine is in position to undercut a kerf in the mine wall and also shows said machine in dotted after said machine has cut said kerf, showing the drill 30 drilling a hole in said mine wall. Then the cutter bar 12 has cut a kerf to the desired depth forward movement of the movable frame 11 is stopped, and the drilling mechanism is adjusted to the desired height and position for drilling a hole in the .mine wall. The motor pinion 82 is engaged with the internal gear 81 by movement of the hand lever 92 to drive the shaft 39 within the tubular drill supporting arm 17 and to rotate the spur gear 27 and the drill 30. Movement of the hand lever 52 then engages the inner periphery of the bobbin 46 with the hub 45 on the worm gear 41 to rotate said bobbin and wind in the flexible power device 60 to feed the drill 30 into the coal. In case of binding of the drill 30 or in case said drill should encounter hard spots in the coal, feeding of said drill will automatically be stopped by slippage of the inner periphery of the bobbin 46 on the hub 45 of the worm gear 41. When the hole has been drilled to the desired depth, the movable frame 11 is moved rearwardly away from'the face of the coal drawing the cutter bar 12 and drill 8O therewith. f

It may now be seen that I have provided a drilling mechanism adapted to bemounted on and operable froma power device or mining machine of any well known type, but particuwell known type but hereini fsa y.

iic

larly adapted for use on a mining machine Y of the breast type, and that Iprovide a new and improved method of feeding my drill leises@ having pivotal connection with said direction changing device and adapted to engage extraneous means.

9. In an apparatus of the class described, a drilling head including a drill rotating member, a drill, means for feeding said drill including flexible feeding means, a direction changing device detachably connectible with the rearward end of said drill adapted to be engaged by said flexible feeding means and means for holding said direction changing device in alignment with said flexible feeding means comprising a depending member having pivotal connection with said direction changing device and adapted to slidably engaged extraneous means.

10. In an apparatus of the class described, a portable support, an arm having pivotal connection with said portable support, a drilling head having pivotal connection with the opposite end of said arm, a drill supported by said drilling head, means for feeding said drill including flexible feeding means, a direction changing device on the rearward end of said drill adapted to be engaged by said flexible feeding means, and means for holding said direction changing device in alignment with said flexible feeding means comprising a member having connection with said direction changing device and adapted to engage said arm.

11. In an apparatus of the class described, a portable support, an arm having pivotal connection with said portable support, a drilling head having pivotal connection with the opposite end of said arm, a drill supported by said drilling head, means for feeding said drill including flexible feeding means, a direction changing device on the rearward end of said drill adapted to be engaged by said flexible feeding means, and means for holding said direction changing device in alignment with said exible feeding means comprising a forked member having connection with said direction changing device and adapted to have slidable engagement with said arm.

12. In an apparatus of the class described, a portable support, an arm having pivotal connection with said portable support, a drilling head having pivotal connection with the opposite end of said arm, a drill supported on said drilling head, means for feeding said drill including flexible feeding means, a direction changing device on the rearward end of said drill adapted to be engaged by said flexible feeding means, and means for holding said direction changing device in alignment with said flexible feeding means comprising a member having pivotal connection with said adapted to have slidable engagement with said arm.

13. In an apparatus of the class described, a portable support, an arm having pivotal direction changing device andv connection with said portable support,y a drilling head having pivotal connection with the opposite end of said arm, by saiddrillingi'head, means for feeding said drill including flexible feeding means, a direction changing device on the rearward end of said drill-r` adapted t0 be engaged-by said flexiblefeeding means, and meansfor holdingsaid direction changing device in alignment with saidflexible feeding means comprising av depending forked ,member having pivotal connection with said direction changing device and adapted to have engagement Wh-Sadafm i. p

141. In an apparatus of the class described, a portable support, an arm having pivotal connection withsaid portable support, a drilling head having pivotal connection with the opposite end of said arm, a drill supported by said drilling head, means for feeding said drill including flexible feeding means, a direction changing device detachably connected with the rearward end of said drill adapted to be engaged by said flexible feeding means, and means for holding said direction changing device in alignment with said flexible feeding means comprising a member having connection with said direction changing device and adapted to engage said arm.

15. In an apparatus of the class described, a portable support, an arm having pivotal connection with said portable support, a drilling head having pivotal connection with the opposite end of said arm, a drill supported by said drilling head, means for feeding said drill including flexible feeding means, a direction changing device detachably connected with the rearward end of said drill adapted to be engaged by said flexible feeding means, and means for holding said direction changing device in alignment with said flexible feeding means comprising a forked member having connection with said direction changing device and adapted to have slidable engagement with said arm.

16. In an apparatus of the class described, a portable support, and arm having pivotal connection with said portable support, a drilling head having pivotal connection with the opposite end of said arm, a drill supported by said drilling head, means for feeding said drill including flexible feeding means, a direction changing device detachably connected with the rearward end of said drill adapted to be engaged by said flexible feeding means, and means for holding said direction changing device in alignment with said flexible feeding means comprising a member having pivotal connection with said dir-ection changing device and adapted to have slidable engagement with said arm.

17. In an apparatus of the class described, a portable support, an arm having pivotal connection with said portable support, a drilling head having pivotal connection with the a drill supported rec-tion' changing devde d(eozeliafblyl 'connected' With the 'rearward end ofs'aid' dillfadptedfo be engaged by said flexibler feediii'g Iiiea'r`9` and' means for holdingv said direction chaiig# ing device in :iligrultlel11",-l vlihf Said* flx'b'l 4 .feeding means comprising ai depending" forked member" having pivotal Corinecti-'ofi` l with said' diection changihg device andv adapted to have slidable engag'ementwith'4 said` arm i Y Signed at Chicago, in the coli'ty of Cook r and'f'Stafte'off Illinois, this 6th day of Jue, 1 A:i` 13.11928; 1 l

' FREDERICK W. VTDDZ.

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