Патент USA US2410458код для вставки
NOi‘IV.. 5, ` A PAGET ` DRILLING APPARATUS M591. Nov. 5, 1946. W, W. PAGET ' .z'AwAss DRILLING APPARATUS Filed Jan. 9, 1945 ¿L ‘ /3 5 sheets-Sheet 2 » ' 20 /70 -53 29 50 3l 30 //5 ' amy. l Nov. 5, 1946, _ s W. w. PAGET l _ 2,410,453 - 5 sheets-sheet 4 DRILLING APPARATUS Filed Jan, 9, 1945 47 »j a@ 2,410,458 Patented Nov. 5j, 1946 UniTED STATES PATENTA OFFICE 2,410,458 DRILLING APPARATUS Win W. Paget, Michigan City, Ind., assignor to Joy Manufacturing Company, a corporation of Pennsylvania Application Ilanuary 9, 1945, Serial No. 571,985 8 Claims. (Cl. Z55-_45) 2 My invention relates to drilling apparatus, and more particularly to control means for drilling apparatus vof the rotary type. _ vAn object of my invention is to provide an improved drilling apparatus. Another object is to provide a drilling vapparatus having improved control means. Still another object is to provide a drilling apparatus having control means ar ranged in an improved manner whereby ready >ac cess may be »had for repair or replacement» of parts. Yet another object is to provide for a drilling apparatus of the rotary type, improved means for controlling drill feed in response to the torque on the drill rotating means. These and Fig. 15 is a fragmentary cross-sectional View ltaken on the plane of the line .i5-l5 of Fig. 14. Fig. 16 is a cross-sectional View taken on the plane of the line lô-lß of Fig. 3. In the illustrative embodiment of my invention there is shown a drilling apparatus comprising bit rotating means, generally designated I, support ing and guiding means, generally designated 2, and bit feeding means, generally designated 3. rï‘he bit rotating meansv »l comprises a rotary motor 4, herein a high speed electric motor hav ing a motor casing A.-'i containing a rotor E keyed to a shaft ‘i journaled in ball bearings 8 suitably supported within the motor casing. Carried by 15 the motor shaft l is a chuck 9 for receiving the shank of a tubular shaped drill rod ill, the latter in turn carrying a drill bit Il. The motor is There is shown in the accompanying drawings provided with a rear head I3 which has a rear one form which my kinvention may assume in other objects will appearmore fully in the fol lowing description. ward cylindric projection hl mounted for limited practice. In these drawings: _ 20 rotation in ball bearings i5 supported within a bore formed in a supporting member it. The bearings are retained in the bore in the support ing member by means of a retaining ring i3 se therein. Fig. 2 is an enlarged longitudinal sectional View . cured, as by screws I9, to the supporting member, ofthe Supporting and feeding means for the 25 and the cylindric projection is held against axial Fig. 1 is a side elevational View `of a drilling apparatus having -my improvements incorporated drilling apparatus shown in Fig. l. displacement with respect to the bearings by Fig. 3 is an enlarged longitudinal sectional View showing the control means, and portions of jthe drill rotating means and supporting and feeding means of an end plate 20 secured, as by screws 2l, to the projection I4. A dirt seal 22 is ar means therefor. ranged within the supporting member and en 30 gages the exterior periphery of the end plate 253. A cylindric portion 24 is formed on the end plate Fig. 4 is an enlarged sectional view showing the and fits the bore in the cylindric projection lli controls for the drill rotating means, and taken of the rear motor head to prevent leakage »be on the plane of the line ll-Ll of Fig. 1G. tween >the parts. The purpose of the rotary Fig. 5 is a fragmentary sectional View taken mounting for the motor will be later explained.on the plane of the line 5-5 of Fig. 3. The feeding means is of the fluid actuated type Fig. 6 is a horizontal sectional view taken onand comprises a feed cylinder 26 containing a the plane of the line 6-6 of Fig. 3. reciprocable feed piston 2l having a hollow piston Fig. '7 is a cross-sectional view taken substan rod 2S extending forwardly through a front cyl tially on the planes of the line ‘l-l of Fig. 3. Fig. 8 is a sectional view taken on the plane 40 inder head 29 and connected, as `by Welding at 30, to a plate .3l which is connected to the sup of the line 8_8 of Fig. '7. porting member i6. The feed piston comprises Fig. 9 is a >fragmentary sectional view taken an inner member k3&2 having a flanged »plate 33 on the planes of the line 9_9 of Fig. 13. secured, as by screws, to the »rear end thereof. Fig. 10 is a side elevational View with >parts An annulus 34 is seated against a shoulder at broken away to show >the forward feed passages the forward end of the inner member 32, .and and control `means for the drilling apparatus. an -annulus 35 has a reduced portion abutting the Fig. 11 is a fragmentary sectional View vtaken flanged plate 33 and providing a space for re on the plane ofthe line ll-H of Fig. ß. ceiving a bushing 36. Arranged between the an Fig. 12 is a fragmentary .sectional view taken nuli 34 and 35 are sealing rings 31 engaging the Von the plane of the line l2-l2 of Fig. '7. inner walls of the feed cylinder. Arranged within Fig. A13 isa sectional view taken >on the Aplanes the feed cylinder between its ends is an annular of the line I3'-I3 of Fig. 9. plate 38 which is engageable by the piston 2l “ Fig. 14 is a sectional view showing the control for limiting forward movement of .the latter. means and passages for supplying cleansing liquid Surrounding the ¿piston rod is a sealing ring 39 , y.to the drill bit. amd-15s 4 which is held by a spring 40 in sealing engage ment with the piston rod and a collar 4| so as to prevent any escape of pressure fluid from the feed cylinder at the forward side of the feed piston. Attached to the rear end of the- feed cylinder is a head 42 having a handle 43 by means of which the position of the drill may be changed. The drill supporting and guiding means 2 com prises a trunnion member 44 having a swivel plate 45 adapted to be clamped in the saddle mounting of a mine column or any other suit able suppcrt. The trunnion member has a lon gitudinally extending bore 46 receiving a cylin bore 18 is an enlarged bore 90 intoV which the valve sleeve opens, and the bore 99 communicates, as shown in Fig. 3, with a discharge passage 9|. At the inner end of the bore 18 is a discharge chamber 92 into 'which the inner end of the sleeve 19 opens, and the chamber 92 is connected by a bore 93 and ports 93' in the valve member 86 with points at the interior of the sleeve 19 communi eating continuously with the discharge passage 9|. When the valve member 86 is in the position shown in Figs. 3 and 6 liquid is supplied from the groove 11 through the ports 80, the annular space 89, and the ports 85 to the groove 83, and the groove 82 is connected to discharge through the dric tube 41 which is fixed in depending portions 15 ports 84, the valve sleeve 19, the bore 98, and the discharge passageäSl. The valve member is mov 48 and 49 of a support member 50. The tube 41 able outwardly from the above position to con~ extends rearwardly from the member 50 and has port member 50 has alined bores 53 and 54 re nect the grooves 11 and 82 in communication with each other through the space 89, and to connect the groove 83 in communication with the dis ceiving the feed cylinder 26 and supporting the charge chamber 92. its rear end ûxed in a recess formed in a depend ing portion 5| of the cylinder head 42. The 'sup For adjusting the position of the valve member latter in a position with its axis parallel to the 8B there is provided an element 94 threaded into axis of the tube 41. The tube 41 is swivelly the bore 90 and having a bore 95 slidably re mounted in the bore 55 of the trunnion member ceiving a stern 96 formed on the valve member. 44 so that the drilling apparatus may be swung 25 Rotatably supported on the element 94 is a col to opposite sides of the support, and a plunger lar 91 having an internal helical groove 98, and lock 56 is receivable in a locking aperture E1 a pin |00 carried by the valve member has its formed in the trunnion member 44 for locking the end portions extending through slots |0| in Kthe support member 50 in its upright position. This plunger lockis guided within bores formed in 30 element 94 and projecting into the groove 98. the depending portion 48 of the support member, When the collar 91 is rotated relative to the ele and a coil spring 58 constantly urges the plunger ment 94, the ends of the pin |00 will follow in the lock toward its innermost locking position. A groove 98 and cause the valve member 86 to be handle 59 is secured to the plunger lock whereby moved longitudinally of the valve sleeve. the locking portion thereof may be manually re 35 Forward feed of the drilling apparatus is ob leased from the locking aperture against the ten tained by supplying liquid under pressure to the sion of the coil spring 58. Connected to the plate rearward end of the feed piston 21 from the 3| carried by the supporting member I9 is a tu bular member 60 which is slidably receivable in the tube 41 for holding the supporting member against rotation relative to the feed cylinder. Arranged at the lower side of the supporting member E8 are contro-l means, generally desig nated G5, for controlling the iiow of fluid under1 pressure to the feed piston 21, for controlling the floW of cleansing liquid to the drill bit ||, and for controlling the supply of electric current to groove 82. As shown in Fig. l0, the groove 82 is connected by a passage l 04 to a bore |05 contain ing a torque controlled valve means, generally designated |06, which controls the flow of liquid from the passage |04 to a passage |08 opening through the control block 66 into a passage |09 formed in the supporting member i8. The pas sage |08 is connected by a passage I |8 in the plate 3| to a tubular member | I2 which extends axially through the piston rod 28 and 4the feed piston into communication with the feed cylinder at trol block 86 connected, as by bolts, to the sup .the rearward side of the feed piston. The space porting member | B. Formed in the control block, 50 in the feed cylinder at the forward side of the as shown in Figs. 3 and '1, is a chamber 68 to feed piston is connected by ports H4 to .the space which liquid is supplied under pressure from a ||5 at the interior of the piston rod, and the supply conduit 69. The liquid passes through a space H5 is connected, as shown in Fig. 3, in ñlter 10 in the chamber 68 and is conducted to communication with a passage ||6 opening a passage 1| which extends through the control through the plate 3| into a passage ||1 extend 55 block to a valve chamber 12 containing a valve ing .through the supporting member |6 to a pas member 13. An operating handle 14 is provided, sage | |8 formed in the control block 66 and open as shown in Fig. 6, for positioning the valve mem ing into the groove 83. _ ber 13 to control the ilow of liquid from the pas When the valve member 86 is in the position sage 1| to a passage 18 which opens into an an connecting the grooves 82 and 83, respectively, nular groove 11 surrounding a bore 18 formed 60 in communication with the supply groove 'l1 and in the control block and opening through the for discharge chamber 92, liquid will be supplied to ward side of the latter. Received within the bore the groove 82 and will ilow from the latter 18 is a valve sleeve 19 to the interior of which through the passage |04, past the torque con liquid is supplied from the groove 11 through ports the motor Il. This control means comprises a con 88. Formed in the walls of the bore 18 at oppo site sides of the groove 11 are annular grooves 82 and 83 which communicate with the interior trolled valve |06, through the passages |08, |09 and ||0, and through the tubular member ||2 to member, the groove 11 in communication with forward feed of the drilling apparatus.: When the feed cylinder at the rear side of the reed pis ton. The space in Ithe feed cylinderv at` the for of the sleeve 19 through ports 84 and 85. Slid ward side of the feed piston will be vented at ably contained within the sleeve 19 is a valve member 86 having enlarged .portions 81 and 88 70 the same time through theports `| I4, the space H5, the passages H6, ||1 and H8, the groove 83, engaging the walls of the sleeve and providing and the discharge chamber. 92.` „ The liquid .act between them an annular space 89 which is adapt -ing on the rear side of the'feed piston will cause . ed to connect, in different positions of the valve the grooves 82 and 83. At the outer end of the 75 the valve member 86 is in the position shown‘in 2,41 0,458 member |24 toward its closed position against the respectively, in communication with the bore 90 and the supply groov'e 11. Liquid will besupplied at this time to the groove=83 and will ilow through passages H8, ||1 and H6, space H5, and ports rá ||4 to the feed cylinder at the forward side of the feed piston. The space in the feed cylinder action of the `springY |4|. The suppl-y» ofiiiuidfor effectingforward feed lwill then be reduced or ïcut completely off, slowing down or stopping forward feed. , . , .ë ,. » `In order to supply a cleansingïliquid to-'fthe drill hole for removing cuttings, >there is `pro" vided, as shown in Figs. 6 and 14, a'lpassage'ïl‘äâ vleading from the liquid supply groove 11 to -a boreA at the rear side of the feed piston vwill be vented at «the same time through the tubular -member i |2, the passages I I0, |09 and |00, past the torque controlled valve |00, through the passage |04, the groove 82, the ports 84,'and the valve sleeve`10 ‘to the bore 90 and the discharge passage 9|. The |56 containing manually operated `valve' means |51 which controls communication between the passage |55 and a passage |60 opening through the control block 66 »into a vpassage '|6If in .the pressure of the liquid acting on the forward side >of the feed piston causes a rearward `feed'of the supporting member I6. The passage |6|fis;con« nected in communication with a passage 2=î|62 drilling apparatus. The torque controlled valve |00 comprises a valve sleeve |20 fitting tightly within the bore |05, the latter‘extending trans verselyïthrough the control block 66 adjacent its 6 tothe supporting member`|6 `and"~force.-the valve 3, vthe grooves 82 and 188 will be connected, formed in a member |64 attached to-«the‘sup porting member, and a tube ’|55 (Fig-.'39 Yhas'Íïits ' rear end threaded in-to the passage‘y |62 vandfex' ' forward side, and formed in the valve sleeve are 20 tends through an axial opening |66 in'themotor stepped bores |2| and |22 slidably receiving, re shaft 1 into communication with the vinterior spectively, a valve member |24 -and its stem |25. Surrounding the adjacent portions of the valve of drill rod l0. - -. - »' The drill rotating lmotor is supplied withïe'lec tric current through conductors |68 which pass through an insulating sleeve |60 into aY cham* ber |10 in the supporting member. The fccn ductors |68 extend from the chamber |10 through an insulating sleeve |12 to av chamber '|13 in the control block 60, and, as shown in Fig. 4, a member and its stem are spaces |21 and |28 com municating with each other and providing a seat |28 which is engageable by the valve member for cutting off communication between the spaces. The space |21 is connected, as shown in Fig. 13, by a port |30 with a space |3| `formed byl slab bing off a portion of the valve sleeve |20, and the 30 switch |14 in the chamber |13 controls the con nection of the conductors to a 'power line,l >not space |3| >communicates with the passage |08. shown. The switch is provided with aV plunger The space |28 is connected by a port |33 with a |15 which abuts a diaphragml |16 `clamped be space |34 formed by slabbing a portion of the » tween a cylinderr member |11l and the control valve sleeve as shown in Figs. 9 and 13. The space|34 communicates with vthepassage |04. 35 block 66 and forming an end wall of thecham ber |13. A plunger |18 is reciprocableinfabore lSurrounding the valve stem are -sealing rings |10 in the cylinder member andabuts the 'oppo ‘|35 -for preventing leakage of liquid from the space |28 along the stem.- The opposite ends -of the bore |05 are closed by plugs |31 and |38, the plug |31 providing a recess receiving a plunger v40 |40 connected to the end of the valve stem. A spring |4| acts between the plug |31» and the plunger |40 for urging the valve member |24 away from the seat |29. An enlargement .|42 on »the -valve stem is -engageable with the valvesleeve |20l 45 'for'limiting the opening movement of the valve member. The plug `|38 has a recess r|43 receiv siteside of the diaphragm. 'FA plunger- |80 v"is‘ire ciprocably contained in la bore y| 0| in the cylinder member and has notches |82 -¿which are adapted to receive the outer'end of -theplunger `|18ffo`r position-ing the latter to `eifect an? lopeningr i or closing of the switch |14. The plunger »1|8'0 ex tends through open ends of the bore |81v so ythat its position may be manually adjusted. _ ' « As a result of my invention there is provided a drilling apparatus having »improved 'control means. By reason of the arrangement of'thë'c'on trol means in a block which is connectedvt‘o the and this recess is connected by a groove |44 in the sleeve |20 to a passage |45 (Fig. 12) opening 50 supporting memberin the manner described, -a ready access to the various controls is hadfor into the bore 90 which communicates’with the ing the outer portion> of the valve member |24, discharge passage 9|. Any liquid leaking along repair or replacement. The >controls-are,A fur thermore, conveniently locatedv for Iactuation by the valve member to the recess |43 is conducted the drill operator. Y » f `away to the discharge passage so that -it oíîers no'o’pposition to the opening movements ofthe 55 While there is in fthis application specliñcally described one form which the invention mayas valve member. The torque controlled valve |00 sume in practice, it will be understood that 'this' will be noted to be located -adjacent the periphery form ofthe same is shown for-purposesofii‘llus .of the motor casing; andthe enlargement |42 on tration, and that the invention may bev modified the valve stem forms with an enlargement |41 on and embodied in various other forms without the stem an annular groove |48 which receivesv departing from its spirit or the scope ofthe ap the end of a pin |40 carried by a blocks |50 at pended claims. « ' tached, as shown'inv Fig. 11, to the lowerside 'of What I claim as new andrdesire lto'secure by the periphery of the motor casing. When the drilling apparatus is being fed in a Letters Patent is: , , y ' ’ forward direction and the load on the drill rotat 1. A drilling apparatus comprising'in. combi ` nation, a drill rotating motor having ajcasing, V ing motor is not excessive, lthe valve member |24 will be held by the spring |4| in its open position means for mounting the casing of rsaid motor for so that fluid supplied to the space |28 from the oscillatory movement,v fluid actuated'. >feeding forward feedpassage |04 may pass to the space means for said motorjmeans inclu'dinga> valve |21 from «which it is conducted to the forward- « feed passage |08. The rear head of the drill ro member arranged adjacent'the periphery òfsaid tating motor will be held against rotation in the bearing I5 by reason of the pin |40 ñtting in the groove |48. If the torque on the motor becomes pressure to said feeding means, and means in cluding an element connected to said motor cas ing at the periphery thereof and operatively en motor for controlling the supply of. fluid under excessive, the motor casing will rotate relative 75 gaging said valve member for positioning the lat 2,410,458 ter to regulate fluid supply in accordancewith the load on the motor. ‘ . , ~ f ply of fluid to said feeding means and toa drill rotated by said drill rotating motor, means> car ried by the control block for controlling the sup f Y' 2. A drilling apparatus comprising, in combina tion, a drill rotating motor having a casing, means for mounting the casing of said motor for ply of operating medium to said drill rotating mo tor, and means connected to said motor casing `and operatively engaging one of said first men tioned control means for regulating the ilow of oscillatory movement, fluid actuated feeding means for said motor, a control block detachably connected to said mounting means and having a valve bore adjacent the periphery of said motor fluid in accordance with the load on said motor. Y6. A drilling apparatus comprising, in combi nation, a drill rotating motor having a casing, means for mountingthe casing of said-motor for casing, means including a valve member recipro- ‘ cable -in said valve bore for controlling the sup ply of fluid under pressure to said feeding means, and means including a pin connected to said mo tor casing at the periphery thereof and opera tively engaging said valve member for position oscillatory movement,- fluid actuated feeding means for said motor, means for supplying fluid under pressure to lsaid feeding means, means for supplying cleansing fluid to a drill rotated ing the latter to regulate fluid supply »in accord ance with the load on said ,-motor. by said drill rotatingfmotor, means for supplying ‘ _ operating medium to the drill rotating motor, a control block detachably connected to said mo -tor mounting means, valve means for controlling the supply of fluid to said feedingvmeans, Valve means for controlling .the supply of cleansing i3. A drilling apparatus comprising, in -com bination, a drill rotating >motor having a casing, means for >mounting the casing'of said motor for oscillatory movement, fluid , actuated feeding means for said motor connected to'said casing mounting means, a control block detachably con nected to said mountingvmeans and removable therefrom while said feeding means remains con knected to said mounting means and having for ward and reverse feed passages connected to said feeding means, means including a valve member fluid through said cleansing fluid supply means, Va switch for controlling the supply of operating medium to said drill rotating motor, each of said valve means and said switch mounted on said control block, and means connected to said motor casing and operatively engaging one of said valve means for regulating the latter in accordance with carried by said control block for controlling the the load on said motor. o -f f lflow of fluid in said forward feed passage, and 30 '7. A drilling apparatus comprising, in com means including a- pin connected to said motor bination, a drill rotating motor having a casing, casing and 'operatively engaging said valve mem means for mounting the casing of said motor for ber for'positioning the latter „to regulate fluid oscillatory movement, fluid actuated ,feeding supply in accordance with the load on said motor. means for said motor, means for supplying fluid 4. A drilling apparatus comprising, in com under Vpressure, to said feeding means, means-for bination, a drillY rotating motor having a casing, supplying cleansing fluid to a drill rotated by said means for mounting` thecasing of said motor for drill rotating motor, means for supplying operat oscillatory movement, fluid actuated feeding ing medium to thev drill rotatingmotor, a control means for said motor connected to said casing block detachably connected to'said motor mount mounting means, a control block-detachably con 40 ing means, valve means for controlling the sup nected to said mounting means and having for ply of fluid lto saidn feeding'means, valve` means ward and -reverse feed passages connected to said for ' controlling the supply of cleansing fluid feeding means and itself detachable from said through said Y cleansing fluid supply means, a mounting means while said ¿feeding means re switch lfor controlling the supply of operating mains connected lto the latter, valve means car 45 medium to said drill rotating motor, each of said ried by said control block for connecting said valve means and said switch mounted on said con trol block, and means connected to said motor casing and operatively engaging said first men means including a valve member carried by lsaid tioned valve means for regulating the flow of fluid control block for controlling the flow of fluid in 50 to said feeding means in accordance With the load said forward feed passage, and means including on said motor. ' l a pin connected to said motor casing and opera 8. A drilling apparatus comprising, inY combi tively engaging said valve member for position nation, a drill rotating motor v_having a casing, ing the latter Ito regulate fluid supply in accord means for mounting the casing of said motor for V,ance with the load on said motor. - Y55. oscillatory movement, fluid actuated feeding 5. A drillingrr apparatus comprising, in comb-i means for said motor, means for supplying fluid nation, a drill rotating-motor having aY casing, under pressure to said feeding means, means for eforward andreverse feed passages selectively in .communication with fluid supply and discharge, . means for mounting the casing of saidvmotor for supplying cleansing fluid to a drill rotated _by oscillatory movement, fluid actuated feeding said drill rotating motor, means for supplying means for said motor connected to saidcasing 60 operating medium to the drill rotating motor, a „mounting means, means for supplying fluidr under . control block detachably connected .to an outer pressure to said feeding means, means for sup vsurface of Vsaid vmotor mounting means, valve means for controlling the supply of fluid to said feeding means, valve means for controlling the plying cleansing fluid to a> drill rotated ,by said drill rotating motor, means for ysupplying oper ating medium `to the drill rotating motor, 'a con-_v supply of cleansingmedium .through said cleans .trol block _connected 'toîsaid motorV mounting _means and detachable therefrom while saidfeed ing means'for said motor remains> connected ,to ing fluid supply means and a switch for control ling the supply of operating medium to said drill rotating motor, each of said 'Valve means and themotor: casing mounting means, means car riedv bysaid control block for controlling the sup-` said switch mounted on said control block. .7o Y ' ' >WIN' W. PAGET.