US1398551A - Boring-drill - Google Patents

Description

G. W. HANSON,

BORING DRILL.

APPLICATION FILED AUG.2. 1920.

Patented Nov. 29, 1921.

5 SHEETS-SHEET 70 I 67 W 03, QW

e. w. HANSON.

BORING DRILL. APPLICATION FILED AUG-2, 1920.

1,398,551, Patented Nov. '29, 1921 5 SHEETS-SHEET 2.

27 Q Qwuvntov gmzmz'y G. w. HANSON.

BORING DRILL. I APPLICATION FILED AUG-2, 1920.

Patented NOV. 29, 1921.

5 SHEETSSHEET 3.

G W. HANSON.

BORING DRILL.

APPLICATION FILED AUG-2. 1920.

, Patented Nov. 29, 1921.

5 SHEETS-SHEET 4- G. W, HANSON.

BORING DRILL.

APPLICATION FILED AUG-2. 1920.

1,398,551. Patented N0m29,1-921.

31mm fo'c a E 259257 (1H0: net;

- GUSTAIE W. HANSON, 0F WICHITA, KANSAS.

BORING-DRILL. k

T 0 all whom. it may cancer rt Be it known that I, GUSTAF W.HANsoN, a

,citizen of the United States, residing at The invention 1s. appliedparticularly to the rotary, motor operated type of boring 0 drills, especially adapted for use in drilling binations and arrangements of parts, and I certain novel features'of construction 1n the oil and gas wells, and for other earth boring operations, and is designed to provide a compactly arranged, and self contained power-unit and drill head that may be manipulated and operated with facility.

The invention involves certain novel comrot-ary drill unit and drill head and their connections, including an elevated power unit and the drill head suspended there from, together with particular arrangements of parts in the drill head for "suspending the drill spindle and well casing. By the utilization of myinvention. the well casing which accompanies thedrilling stem and bit, is lowered simultaneously with the drilling tool as fast as the latter digs into the ground, thus eliminating the'danger of caving in of the walls, as the boring progresses. In a copending application for patent, Serial No. 400,712, filed August-2, 1920, means are illustrated whereby the feed of the casing and stem are automatically regulated. a

Provision is made for an improvedcirculation of water whereby the cuttings from the drill bit are removed through the wall casing, and the increased flow ofwater that results from the use of my invention, by hydraulic action, enhances the cutting opera tions of'the bit. In the accompanying drawin s 1 have illustrated one complete examp e of the physical embodiment of my invention in which the parts are combined and arranged according to the best mode I have thus far devised for the practical application of the principles of my invention.

Figure 1 is a view in side elevation of the Specification of Letters Patent. Patented N0 29 1921 Application filed 'August 2, 1920. Serial No. 400,713. I I

rotary power unit and alined drill head and connections for operating the drill stein.

through the overflow basin, on-line 33 of Fig. 12.

Fig. 4 is a detail view, in section, of the coupling chuck connected to the extra sections of the drill stem during drilling opera.- tlons.

Fig. 5 is a transverse sectional view on lines 5'5 of Fig. 4: of the coupling chuck.

beam at line 66 of Fig.1. e Fig. -6 is a detail View, partly broken away, showing the' drill chuck and an auxiliary tool or connecting wrench employed in the process of connecting. extra sections to the casing. I

I ig. 7 is a top plan view of the connecting wrench tobe used in conjunction with the chuck for making or withdrawing 'conne'ic tions in thecasing. ,y 7 I I I Fig. '8 is a view in side elevation ofthe wrench. M

Fig. through the drill head on line 9 9 of Fig. 2

showing the inlet'to and flow of water from' the head. U ,p Fig. 10 is a detail showing a face view of one of the guide rollers forthe movable feed frame, r 3 H c Fig. 11 is a transverse'sectional View on line 11-11of Fig. l illustratingionelof the Fig.0 is a sectional view of the drill head 9- is a transverse sectiOnalview guide rollers and its for the movable v frame. ,1 v

Fig. 12 is a view partlyin elevation and partly in section of the overflow basin and water outlet therefrom. I

Fig. 13 is a detail sectional :view at iiline '13-13 of Fig. 6*, showing the-drill chuck sleeve keyed to the drill spindletoprevent relative movement of the parts.

In the preferred form of my invention as illustrated in the drawings, reference may be had to the generalassembly'view ofFig. 1 in which the essentialelements of the vention are depicted and their combination and arrangement shown.

In carrying out the purpose of inven tion I utilize a rectangular frame 1 that is movable with the feed of the drilling tools, and guided by means of the two columns 2, 2 that are erected centrally of a derrick or tower of the drilling outfit, part of the transverse frame of the tower being indicated at 3, 3, of Fig. 1.

Rollers 4, 4, are journaled on'the movable frame to facilitate the movement of the frame in its descent as. the drilling proceedsv and to uide the apparatus when wlth'drawing or elevating the power unit, to addextra sections to the well casing and drill stem.

The power for the drilling machine is provided by an'electric motor 6, with wires 6 extended to a source of supply on the ground, and the motor is rigidly attached to the movable frame 1 by brackets 7, 7. The frame 1 is made up of channel iron beams and the brackets are fitted into the channels and bolted or riveted therein.

The power unit, although described herein as an electric motor, may be of other types, such as an internal combustion engine, pneumatic motor, or steam operated machine, arranged in vertical alinement with the drilling mechanism, and in connection with the electric motor I utilize a gear within the casing 8 alined'with the armature shaft 9 of the motor to reduce the rotary movement of the motor from high speed for revolving the transmission shaft 10 of the drill head.

A safety device or clutch 11 is used in the transmission of rotary power to the operatingparts of the drill head, which clutch is indicated as a whole by the numeral 12.

The movable frame is located centrally of the derrick or tower and is designed to descend as the drilling operations proceed, and to be elevated or hoisted toward the upper end of the tower after the drill head-is disconnected from the well casing and drill stem preparatory to the addition of extra sections of casing and stem. i To guide the movement of the frame, the rollers 4 run in the trackway formed by the H-beams, as best seen in Fig. 11, and preferably angle irons 13 are riveted to the opposite edgesof the H-beams to form retaining flanges for the rollers 4, 4. The frame is thus guided in its movement and retained in proper' alinement withthe drilling tools or devices operated from the motor.

The transmission clutch or safety device '11 (Fig. 1) is of the well known pin-belt type employing a driving disk 14 on the transmission shaft 10, with pins 15 depending therefrom, and a complementary disk 16 with upwardly extending pins 17. These two sets of pins are arranged on concentric lines about the center of the disks,- with a leather belt 18 istertwined between them. Should an excessive resistance to the rotary movement of the motor be encountered for broken be re damage can come to the drill-- ing tool ,beneath the safety clutch.

he beam 19 for supporting the drill head.

is a metal casting of invertedU shape, as seen in Fig. 6, with its ends projecting into the channels of the opposed channel iron beams of the frame 1, and the transverse beam 19 is rigidly secured, as by bolts orrivets, to the two side bars'of the frame 1.

The cross beam 19 is fashioned with a vertically extending integral, central, cylindrical element 20, forming the water inlet chamber for the introduction of water from the inlet boss 21, to which is attached the inlet hose or ipe (not shown). The upper end of this 0 amber'is closed by a transverse ring 22 formed with a depending central thimble 23', and below the water chamber 24, a sleeve 25 is formed, having an end flange 26.

The hollow drill spindle 27 is revolubly An annular series of bearing rollers 31 is interposed between the cup 32 of the packs ing gland and the spindle, and annular packing rings 33, of felt, may also be utilized.

At its upper end the hollow spindle is formed with a solid shaft portion 34, an annular shoulder 35, a threaded extension 36, and a reduced threaded end boss 37. The

boss 37.is threaded into sleeve 38 of the driven disk 16 of the transmission safety clutch l1, and the extension 36 receives the bearing plate 39.

The strain of transmitting rotary motion from the driven disk to the drill head is taken by the series of four bolts 40 passed longitudinally through the sleeve 38, plate 39 and threaded into the shoulder 35 of the drill head shaft, and these bolts hold the head 38 from unscrewing during reverse action of the head. It will thus be apparent that the disk 16, plate 39 and shaft 34, formarigid structure that is revoluble in the drill head under power from the motor.

; Two annular sets of ball bearings as 40 and 41, are provided, ,one below and the other above the bearing plate 39, the usual grooved bearing rings 42 being "mployed and retained in their places by the headplate 43 and bolts 44 passed through the flange 45 of the drill-head beam 19.

The water inlet 21 to theinlet chamber 24 is located below the bearings for the shaft in the drill head, and the water is supplied to the interior of the hollow drill spindle 37 through ports 46 therein and ports 47 in a packing sleeve 48 interposed between the gland 28 and the internal sleeve 23 of the water chamber 24. Flexible metallic packing 49 is provided to form a close leak proof joint. -The flow of water for circulation to the bottom of the well is indicated by the arrows in Fig. 9, and it will be apparent that the currents of waterflow through the inlet boss 21, from an attached or casing,

hose, thence through the ports 47 and 46 to the bottom of the hollow spindle, and then the water descends to the bottom of the well through the drill stem 50.

At the lower end of the hollow drill spindle, a chuck, indicated as a whole by the numeral 51, is utilized as the connection between the drillspindle and drill stem 50.-

As best illustrated in Figs. 1, 4 and 13, the spindle 27 is threaded into the collar 52 of the chuck and a transverse key 53 passed through'a slot in the collar and agroove in the spindle is utilized to lock these parts against displacement.

The stem 50, which may be a 4" pipe is entered up through the bottom of the chuck, and threaded into the base of the collar 52 at 54, and is positively held in the head 55 of the chuck by a pair of opposed jaws 56' and 57. These jaws, it will be noted, are fashioned with curved, toothed faces or racks 58 and 59, arranged in opposite directions, in order that one jaw may positively engage the periphery of the cylindrical drill stem and co-act with its complementary jaw, when revolving the stem in one direction, as for the drilling operations. The drilling operations depend upon. I

- against the stem by tlienction of the pair place in of wedge keys 61 which slide tangentially of the stem in their slots 62 of the chuck head. Wedge shaped keys 63 may be employed to lock the slotted wedge keys in the drill head and the locking keys are-passed through slots in the base plate 64 of the chuck 51.

From the abovedescription it will be understood that the successive drill stem sections 50 are added to the drill stem andsecured at their top ends to the chuck, and that the rotary motion of the motor is transmitted to the drill stem through the instrumentality of the drill spindle shaft and the chuck as described.

A drilling bit (not shown) is attached at the lower end of the drill stem, to cut away the ground structure at the bottom of the well, and such a drill bit forms the subject may - screwlng.

matter of a copending application for Patent Serial No. 398,785 filed July 24, 1920.

. The well casing65 is of larger diameter than the drill stem and surrounds the stem. The casing is made up of the usual sections, corresponding in length to the sections of the drill stem, and is suspended from the drill-head beam 19 through the instrumen- 'tality of a pair of arms 66 and 67,, each piv- .oted on a headed pin 68 passed through the beam, which is perforated for the purpose, and secured therein by a key 69. Near the lower ends of the suspending arms 66 and 67 are provided a series of spaced perforation 70, to receive the attaching bolts 71, by

means of which the cross head 72' may be adj ustably attached to the arms. t

The cross head is a steel casting with forked ends or pairs of lugs 73 to accommodate the fiat arms'66 and 67- therebetween.

The body of the cross head 72 is fashioned as a cylindrical, open, vertically disposed cup 74, and is of sufficient strength to form a rigid-and stable connection between the two suspending arms, for holding the lower end of the drill head in alinement'with the power unitsupported thereabove.

Within the cup 74 is provided an integral, central, annular flange 75, and above the cup is located the overflow basin-76 having an exterior annular shoulder 7 4 fitting over the top peripheral edge of the cup and closingthe same. The top 77 of the basin is perforated for reception of members of a wrench or tool, to be described, for rotation by the wrench, and the bottom 78 of the basin is provided with an annular series of ports 79 for passage of water from the basin to. the interior of the cup.

In the bottom of the basin a downwardly projecting sleeve 80 is provided, which, at its upper-end, rises above the basin bottom and by a return bend 81 is integrally joined thereto, thus fashioning an annular recess or socket 82 to slip over the upper edge of the flange 75 of the cup and inclose "the same.

At its lower end, which projects below the body of the cross head, the sleeve 80 is threaded to receive .an enlarged nipple, or flanged open bushing 83, and a lock screw 84 be used to hold these parts from un- The lowe end of the bushing has an open extension or thimble 83 to which a coupling sleeve 85 of the well casing 65 is also screwed. i

It will be obviousthatin addition to form;

ing a brace. and support for the well casing and :drill, the cross head also forms the overflow device forv disposing of the water as it rises inthe well casing from the bottom of the well. Thus in Fig. 112 the arrows indicate the descent of the water inthe drill stem 50, and other arrows designatethe ascent of water in the well casing outside the stem. The ascending currents pass through the well casing, coupling, and sleeve 80 to the interior of the basin 76, thence down through the ports into. the cup and flow.

around the cup and out through port 86 and nozzle 87 cast upon the bottom of the cup, and the water may be conveyed to the sump by a hose (not shown) attached to the nozzle.

Ina co-pending application for patent Serial No. 398,784 filed July 24, 1920, I have swing to position for attachment to the easingand stem as the drilling proceeds. In

Figs; 6, 7, and 8 of the present case I illus trate a wrench or tool employed in the proc-. ess of disconnecting the drill head from the well casing thus disengaging the drill head preparatory to changing the well casing and drill stem sections.

,The wrench is designated as a whole by the numeral 88 in.Figs. 7 and 8 and comprises openable aws 89, 89 with interlocking perforated ears 90, 90 to receive the detachable securing pins 91, 91. At opposed corners of the flat, diamond shaped tool are a pair of dependent, fixed studs 92, 92, which are adapted to be inserted in the openings 93, 93 in the top plate 77 of the overflow basin 76 which is rigidly supported as described on the cross head 72.

The pins 91 of the wrenchare of sufiicient length to be passed through openings. or grooves 94, 94 in the chuck head 55 (Figs. 5 and 6 a The wrench is placed inoperative position about the stem 5Q by applying the open jaws 89- thereto and coupling the jaws together with pins 91 after passing said pins through openings 94 of the chuck head 55, and the studs 92 are lowered into the openings 93 of the overflow basin. I

A wrench or holding tool (not shown) is now applied to the coupling sleeve 85 of the ,well casing to hold the same against rotary movement. The spindle 27 and chuck are then revolved to unscrew the basin and its bushing 83 and thimble 83 from the stem coupling sleeve 85 (Fig. 12),. the basin and its connected partsbeing'free to revolve in the'beam. By this means the drill head may be disconnected from the well tube or casing, and after the chuck 51 has been unscrewed from the top of the drill stem 50 the frame 1 and its drill head, including the chuck, may be elevated to provide room for the additional tube section'and drill stem section.

The chuck 51 is unscrewed from the top of the drill stem 50, after-thekeys 63 and 61 have been loosened. But previous to turning the chuck onthe stem the supporting arms 66 and 67 are disconnected from the beam 72 by the removal of the bolts 71, and the arms are swung outwardly on their pivots 68 to permit the application of a wrench or similar tool (no-t shown) to the drill stem 50 just below the chuck and above the overflow basin in Fig. 1. WVhile the tool holds the stem, the spindle 2-7 and chuck are revolved, thus freeing the chuck from the' drill stem.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is l. The combination in a rotary drill head and its suspending frame including a cross beam,'of supporting arms pivoted on said beam, a cross head connecting the free ends of said arms and formed with an open top cup having an outlet, an overflow basin closing the cup and communicating there/ with, said basin having a central sleeve projecting through the cup, and a well tube pose described.

2. In a water-circulation device as described, the combination with an inclosed drill stem, of a suitably supported member fashioned as an open cup and provided with an outlet, an overflow basin closing said open cup and communicating therewith, a sleeve on the basin projecting through the open center of said cup, and a well casing surrounding said stem and communicating with said basin. I

3. The combination with the open cup member having an outlet and a central annular flange, of an overflow basin closing said cup and provided with a perforated bottom, a sleeve on said bottom fitted over said flange and projecting below the cup. a drill stem inclosed by said members, and a well casing communicating with said sleeve, for the purpose described.

4. The combination with supporting arms, of a cross beam andmeans for securing said beam to said arms, said beam formed with a cylindrical open cup having a central annular flange and an outlet from the cup, of an overflow basin having a perforated bottom closing said cup, a central sleeve formed with an annular socket and integral with the bottom of the basin'fitted over the top edge of said flange, a drill stem inclosed by the cup and basin, a nipple threaded on the end of said sleeve, a thimble onsaid nipple, a well 'tube surrounding the stem and a coupling sleeve connecting said tube and thimble. 1

5. The combination in a rotary drilling machine,- qf a'drill head and driven spindle, a drill stem connected to said spindle, a cross beam supporting said members and fashcommunicating with said sleeve for the purioned with cylindrical walls forming a water inlet chamber, there being communication between said chamber and spindle for flow of water to the drill stem.

6. The combination with a rotary .drill shaft having its lower end formed as a 1101-- and said packing sleeve and spindle having ports for passage-of water from the chamber to said drill stem.

7. The combination in' a rotary drilling machine with a supporting cross beam and rotary bearings therein, of a hollow drill spindle and drill stem, said spindle having a solid shaft portion supported in said bearings, and means for furnishing circulation of water to said spindle and stem.

machine with its hollow spindle, of a coupling chuck secured at the lower end of said spindle, and means for connecting said chuck to a hollow drill stem, as described.

9. The combination in a rotary drilling machine with a hollow spindle, and a coupling chuck connected to said spindle and,

of an overflow basin, a supporting member and an outlet chamber therein for said basin, and means adaptable for connection between said chuck and basin whereby the latter may be disengaged from a well casing.

10. In a rotary drilling machine the combination with-a pair of perforated, pivoted, supporting arms, of a cross head having bifurcated and perforated ends connected to said arms, said cross head fashioned with a flow basin closing said cup and communieating therewith, and a well casing connected with said basin, for the purpose described.

11. The combination in a rotary drilling machine "with a suspended driving mechanism and movable feed frame, of a drill head including a beam and suspending arms thereon, a cross head connected to said arms and a well casing supported-from said cross head, a drill stem within the casing, and connections between said stem and driving mechanism whereby the stem is operated and the stem and casing are movable with the feed frame. a

12. The combination in a rotary drilling machine with a suspended feed frame and driving mechanism supported thereon, of a 8. The combination in a rotary drilling drill head alined with said mechanism and a driven spindle supported in said head, a

drill stem connected with the spindle, a cross driving mechanism supported thereon, of adrill head alined with said mechanism and a driven spindle supported in said head, a drill stem connected with said spindle, a

cross head rigid with said frame, a well cas ing surrounding the stem and attached to said cross head, means for introducing water to-said stem and means providing for egress of water from the well casing, forming part of said drill head.

GUSTAF W. HANSON.

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