US1679825A - Rotary well-drilling machine - Google Patents

Description

Aug. 7, 1928. 1,679,825

J. H. HOLMGREEN ET AL ROTARY WELL DRILLING MACHINE Filed June 23, 1923 5 SheeS-Slleel l LMMS J. M., lP-IILMGREETNM ET AL.

ROTARY WELL DRILLING MACHINE Filed June 25, 1925 5 Sheets-Sheet Aug. 1?',v 1928. 1,679,825

J.H.HOLMGREEN ETAL ROTARY WELL DRILLING MACHINE Filed June 2:5, 1925 5 sheets-sheet 3 Aug. 7, 1928. 1,679,825

J. H. HOLMGREEN ET Al.

ROTARY WELL DRILLING MACHINE Filed June 2:5, 1925 5 Sheets-sheet 4 @nl //l M \\\:"\l\\\ I "1" 10011Hl 2S v l 222'* .111 f k" "11 2?, 2

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J. H. HOLMGREEN ET AL;

ROTARY WELL DRILLING MACHINE Filed June 23, 1925 5 sheeis-sheet 5 RJ. Holmg vu,

Patented Aug. '-7, 1928.

y 1,679,825 UNITED STATES PATENT oFFicE.

JULIUS H. HOLMGREEN AND RICHARD il'.l HOLMGREEN, OF SAN ANTONIO, TEXAS, AS-

SIGNOBS TO ALAMO TEXAS.

IRON WORKS, OF SAN ANTON IO, TEXAS, A CORPORATION OF ROTARY'WELL-DRILLNG MACHNE. i

Application led June 23, 1923. Serial No. 647,384.

Our invention relates to a rotary well drilling machine such as is used in drilling oil wells and the like and it is an obJect of the invention to provide a machine of the character` described which shall be very strong and compactwhi'ch shall consist of relatively few parts yand which shall not be liable to get out of order.

Another object of the invention A1 s to proro vide guiding means for the rotating table which shall be in elevated position for securing and maintaining stability in the table and which shall also'prevent the table from being thrown upward.

l5 A further object of rtheI invention isto p rovide disappearing handles for the A di'ive collar and the slip ring.

Still another object 1s to provide a simple and edective 4automatic shaft lock to vholdv nu the shaft from rotation when the clutch is out of engagement and automatically retease it when thrown in.

` A further obj ect is to provide an improved method of fastening the driving pinion for the table to its shaft. v v

Still another object is to provide an 1 mproved driving collar and in connection therewith an improved method of welding a steel driving lug to the iron collar.

Still another object is to provide improved lubricating means for the device and various other improvements in details'and arrangernent of parts will appear hereinafter.

Referring to the accompanying drawings,

2 which are made a. art hereof and on which similar reference c aracters indicate similar parts, n

Figure l is a perspective of our device, Figure 2, a side elevation, t@ Figure 3, a longitudinal section on line. 3 3 of Figure l,

Figure t, a transverse section on line il-4. ot Figure l, y Figure 5, a transverse section on line 5-5 t? of Figure l, Figure t, a transversesection on line 6 6 ot Figure i, n

Figure 7, a transverse section on line 7-7 ot Figure l, v fifi Figure 2, a itragrnentary perspective of the shaft loclr and operating mechanism theretor, also shown in Figures l, 2 and 5'..

Figure 2, a perspective oi' the table, the slip ring and the driving collar in dissembted relation,

Figure 10, a detail of slips for seizing the drill stem and holding the same while other 'sections are connected thereto `or discon- 'nected therefrom.

' ferred manner. Lugs 23 extend downward from the base and bear against the inner sides of the timbers to hold the parts in place. The base is provided with a central opening and an annular flange 24 surround-s the opening and rises above the upper part of said flange being flared outward to pro vide a seat for tapered roller bearings 25 and the seat being provided at its outer pe-` riphery with a substantially vertical annular flange 26 to limit the outward-movement of the rollers. About the circumference of the base there are located a series (here shown as four in number) of upright posts 27 for supporting the split ring 28 which provides an outer bearing for a rotary table 29 resting on the rollers 25.

The ring is split and provided at opposite sides of the table at 30 with ears secured together by bolts 30. Each half of the split ring rests on .two of the posts 27 and---is'or may be provided with downwardly extending lugs to engage 'in seats in the tops of the posts to insure correct positioning of the ring. The split ring and the posts have openings to receive bolts 31 for holding the parts together.

The rotating table consists essentially of .upper and lower disks connected by an outer wall 32 (Fig. 4f), each disk having a large central opening and the two being joined adjacent the opening by vertical pillars 33 and by the metal surrounding the openings at 3ft and 35 in the table (Fig. l). A de-v pending ange 36 on the table ts within the ange 24k ot the base and securely closes the race for the antifriction rollers against the entry of vrnud and slush from the well hole, besides contributing to the stability of the structure and helping to maintain the table in correct position. t depending dange 3'? on the table (Fig. t) bears against the outer ends of the rollers 25 in cooperating relation ,with the Fange 26. it. horizontal Fange 82 bears against the underside ot the split ring to prevent tilting of the table. it set ot gear teeth 39 is provided between the last twov tlanges referred to. The upper diskV ot' the tou litt

` the face of the ring by capillary attraction l ing relation.

of the table indicated at 42 lin Figurev 3 and extending upward at an angle of approximately 15 degrees to distribute the oil over and the relative rotation of the parts. The oil' cup has a lid 41 and a drainage openingclosed by a plug 42.

The upper surface of the table is provided with openings 34 and 35 adapted to receive respectively a post 43or driving the grief stem clamp and a rotary wrench post 44. These holes extend down into the lower disk of the table in order to hold the partsreferred to securely and are duplicated at each side of the table for convenience in operation. Coacting with the wrench post 44 is r a standing wrench post 45 having its lower end located in a socket 46 on a projecting part of the post. A Afiange 47 extends from l each siderot the socket to the adjacent post '27 to make the connect-ion between the socket and the base rigid and secure.

The table as heretofore explained has a central opening in which is received a split slip ring 48` consisting of two duplicate halves. In the present embodiment we have shown these halves as unconnected but any convenient or desirable means may be provided for fastening them together in work- The slip ring has a vertical upper bearing surface at 49 resting against a similar surface at 50'on the table and a fiange 51 resting on the lower disk of the table above the annulus 36, said slip ring having a circular partprojecting downward and bearing'against the inside of said annulus. In this way a very steady and secure support is provided for the slip ring. To prevent upward movement of the slip ring at undesired timesthe table is provided with oppositely located L-shaped slots 52 which ,extend down through the upper disk and then branch in one direction below said disk. These slots receive lugs 53 on the respective halves of the slip ring said lugs passing down through the vertical part oi their respective slots and then to the right, as shown.

For the purpose of lifting the slip ring out of its seat on the tables we have provided each halt With a handle54/ here shown as having a form of a hook. A cavity is provided in the upper face ot each slip ringV section in Which the hooks normally lie when not in use, the Ycavities 'being deep enough to bring the hooksbelow the surface ofthe slip ring. Each of the hooks has a pivot pin 55 by means of which it may be readily removed or replaced. The slip ring may be reduced exteriorly between the face 49 and the flange 51 and may be provided with vertical anges 55 for strengthening the ring without unduly adding to the weight thereof.

The inner face of the slip-ring is conical and is adapted to receive slips for gripping the stem of the drill to sustain the string while adding or removing sections. Such slips are shown in Figure 10 at 56 and are preferably three in number7 the three when in place filling the space between the slip ring and the stem to be supported. The outer face of the combined slips forms a frustuln of a cone 'adapted to tit in the truste-conical interior of the slip-ring and each slip has hardened transverse corrugations or` teeth at 57 on its inner face to afford a secure gripping action, the body of the slip being relatively soft. The dimensions of the slips are such that a line drawn from 58 to 59, i. e. at the greatest diameter of the slip` will be longer than the diameter of the central opening of the slip ring at its lower end. rl`he purpose of this is .to pre-vent any chance ot a slip being dropped and falling through the central cavity of the slip-ring into the well. lVith the dimensions indicated the slip is bound to be caught in the slip ring. At the upper end of each slip is a post 6l) having threaded engagement with the slip and a handle 61 is pivoted to the post and serves as a means for handling the slip.

The slips are so constructed that the npper ends will lie in substantially the same plane with the upper surface oi the rotating table. The same cavity in the slip-ring serves also to receive the grief stein clamp or driving collar comp-rising two identical sections 62, the upper surface of which also is intended to lie exactly in the same plane as the upper surface of the slip-ring sections and of the rotating table. rlhis collar has a Central opening to receive and drive the grief stein ot the drill while permitting free up and down movement thereof. llach slip-ring section has upper and lower collars 63 and 64 ybearing against the inner face of the slip-ring and a lug 65 projecting from the surface between the collars engaging in an L-slot 66 of the correspondingslip-ring section'. ln our construction this lug is made of steel which is fixed to the iron of the driving collar by a method which insures that the lug will never break away from the body of the driving collar., and at the saine tinie enables us to utilize a cheap material for the body of the collar.

Each section oi the collar is provided at its upper end with a handle 67, here shown as substantially T-shaped, said handle being' pivoted to the collar at the lower end o f the stem 68. The handles lie in depressions 1n the upper ends or' the collar seclll() lll) IIS

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` oil holes.

remesa and 2 and therefore is reversible so that as l the teeth at one side become worn or broken it may be reversed on the shaft andso give double service. A clutch member-72 is connected to theshaft for rotation therewith by dianietrically opposedsplines 7 3 (Figures 3 and 7 permitting lit to slide on the shaft. rlhis clutch member is also reversible in similar manner and tor the saine reasons as the sprocket 71. A clutch collar 7 4 is mounted in an annular slot of the clutch member 72 and a roclrshatt 75 has arms 76 pivoted by means ot screws 76' to opposite sides of the collar. An oil cup 77 at the top of the collar is connected by a passage to the groove for collar 71 in member 72and said oil cup has a lid 77 with lugs at the rear end projerting so as to engage lugs at therear of the box to prevent the cover from. tilting back so far as to remain open, whereby dirt and other foreign' objects might enter the The rockshaft has an upwardly projecting arm at each end tor supporting `an operating lever 78 for the clutch and it is 'ournaled adjacent to said 4arms in bearings 79 iixcd to the foundation timbers 21.

For locking the shatt 79 against rotation when the clutch is disengaged we have-provided a stop collar 80 fixed to the shaft, thisA collar havinga series ot openings in its periphery to receive a lug 81 at the end of a latch 82 (Fig. 8) pivoted on a-braclret83 secured to o ne ot the timbers 21. A latch litter 84t is pivotally secured tothe lever 7 6 (Fig. 7) and has near its tonward end a cam 85 acting against a lug 86 on the latch 82. ihnother lug 87 on the latch limits its baclrward movement and holds it in position out ot' a tion below the upper level of the table. pll'ie litter 81 has a notch at 88 on its underside which perniits the lifter to fall ai'ter the clutch is tally lthrown out. as in Figure 2., whereupon the shatt loch 82 by its lug 81 engages one ot vthe notches inthe collar 8U and so locks the sha'tt against rotation. At other times the under surface ot the litter vrides on an upstanding dange of afixed de- When the notch 88 engages with the detent till" rear end with a raised guiding lug 90 which helps to hold the sliding litter in place..

the 'clutch member 72 is loclred out oli action and cannot be returned without iirst positively lifting the clutch litter out otengagement with the detent. rlhis is done `preferably by means ot a foot lever 91, here rlhe shaft 70 carries at its inner end a beveled pinion 93 with teeth engaging the teeth 39 oi the' rotating table said teeth preferably being thicker than the teeth ot' the table to take care ot the greater wear of the teeth on the pinion. A shroud 9a at the larger end otthe pinion strengthens the teeth; on the pinion .and bears against the outer ends ot those on the table. rl`he pinion is secured to the shat't by a gib lrey and is pressed on the gib lrey only and not on the shatt, the gib being reversed as shown with its head at the outer' end of the pinion this being to prevent the shaft from working through the pinion under heavy duty and also making the pinion easily removable from its shaft when the shaft is dismounted.

The inner' and outer bearings 96 and 97 for the shaft 7 0 are split at an angle to provide-tor ready dismounting and replacing of the-shaft when the caps of the bearings are taken oit. rl`he inner bearing is located midway between timbers 21 on a Flange extending laterally frorn the base 20 and bolted to each of the said timbers, the lower part oit' the bearing being integral with the dange.

An loil cup 98 is located at one side ot the bearing 96 and is integral therewith, said cup having a passage leading to the bearing. -tlid 99 -for the oil cup is pivoted at itsl inner rear cornerand has a bent nose at its l'orward end extending up under a lip at 109 on the removable cap ot the bearing which construction helps to exclude mud and slush trom the oil cup. A loclr tor the oil cup cover comprises aninverted bolt 101 having its head extending downward into the oil'cup to prevent swinging ot the lid into open position and having an adjustable nut above the cover by which the position dt `the boltcan be determined. Preferably the head is conical in shape, flaring away trom the bolt as shown in Figure 6. rllhe haring head catches under an inwardly eatending tapered ledge at the top ot the cap and so holds the lid shut, movement ot the lid toward open position pulling it down into tight engagement with the top oit the boa. he outer bearing 97 has a somewhat similar oil cup closed by a pivoted lid 102 pivoted at 103. y

lt will be obvious to those slrilled in the art that our device 'may be modified in various ways and thereiore we do not limit ourselves to the specic means shown in the drawings and described in the specidcation, but only as indicated in the appended claims.

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bearing surface on the table, and driving means for the table on its under side below the split ring, substantially as set forth.

2. .In a. well Idrilling machine, a rotary table having a. bearing surface on its outer periphery, 'a split-ring embracing the table and having a bearing surface in contact with that of the table, driving means for the table on its underside belowl the split ring, and a horizontal flange on the table between the ring and said driving means bearing against'said ring, substantially as set forth.

3. In a vwell drilling machine, a rotary table having a bearing surface on its outer periphery, a split-ring embracing the table and having a bearing surface in contact with that of the table, driving means for the table on its underside below the split ring, an annular recess in the outer face of thetable at the upper edge of said ring, an oil reservoiron the ring, and an inclined passage between the ring and the table leading from the oil reservoir up to said recess,

substantially as set forth.

4. -In a well drilling machine, a base em bodying a race for anti-friction devices and a series of posts arranged about said race,

anti-friction devices on the race, a rotating table resting on the anti-friction devices, a ring bearing against the outer periphery of the table and fixed to said posts, and a horizontal flange on the table bearing against the underside of said ring, substantially as set forth.

5. In a well drilling machine, a rotating table, a fixed ring surrounding the table and lhaving bearing engagement with the outer surface thereof, an overhanging flange at the top of the table, anda recess for lubricant beneath said flange communicating with the bearing surfaces of the table and the\ring, substantially as set forth.

6. In a well drilling machine, a base, a rotary table having a bearing surface on its outer periphery, a split ring embracing the table and having a bearing surface in conltact with said bearing surface on the table,

fixed posts o the base supporting the split ring, and bolts passing up through said base said post and said ring for securing the ring in place, substantially as set forth.

7. lin a ldrilling machine, a rotary table, a

split slip-ring supported centrally thereof,

a split grief stem clamp supported centrally of the slip` ring, handles on the independent segments of the slip-ring, independent handles for the separate segments of the grief' stem clamp the upper faces of the table the slip-ring and the grief stem drive collar iying approximately in the same plane, and depressions in the upper faces of the slip-ring and the grief stem drive collar for receiving the handles when out of action whereby the tabletop formed by the combined parts remains flat, substantially as set forth.

' 8. In a drilling machine, a rotary table having a central opening, a split slip-ring supported in said central opening, a split grief stem' drive collar supported in the central opening of the slip-ring, disappearing handles on each segment of the grief stem clamp, and projections on said handles en ga-ging openings in the slip-ring, substantially as set forth.

9. In a well drilling machine, a rotating table, a slip-ring therefor having a circular axial opening, a split grief stem drive collar supported in said opening, andmeans for locking the segments -of the grief stem drive collar to the slip-ring, substantially as set forth.

10. In a well drilling machine, a rotary table having a central opening, undercut slots leading away from it, extending only partly around the inner periphery of the table, a split slip-ring mounted in said central opening, and lugs on the segments of the slip-rlng engaging said undercut slots, substantially as set forth.

11. In a. well drilling machine, a rotary table, a slip-ring on the table having a central opening, L-shaped slots leading therefrom, means for securing the slip-ring to the table, a split grief stem drive collar mounted in the opening of the slip-ring, and lugs on the grief stem .drive collar engaging under the horizontal shoulder formed by said L-shaped slots, substantially as set forth.

12. In a drilling machine, a rotatin table, a shaft geared thereto, means for riving the shaft including a clutch, a collar on the shaft having peripheral openings, a detent supported adjacent the shaft adapted to engage said openings, a lever for operating the clutch, and connections from the lever for disengaging the detent when the clutch is engaged, substantially as set forth.

13. In a vdrilling machine, a rotating table, a shaft geared thereto, means for driving the shaft including a clutch, a collar on the shaft having peripheral openings, a detent-supported adjacent the shaft adapted to engage said openings, a lever for operating the clutch, and a bar pivoted to the lever and having cam engagement with the detent for moving it out of engagement with the collar when the clutch is engaged, substantially as set forth.

14. In a drilling machine, a rotating table, a shaft geared thereto, means for driving the shaft including a clutch, a collar on the shaft having peripheral openings, a detent supported adjacent the shaft adapted to lil() terasse engage said openings, a lever for operating the clutch, and a bar pivoted to the lever, said bar having cam engagement with the detent for moving it out of engagement with the collar when the clutch is engaged, substantially as set forth.

15. ln a drilling machine, a rotating table, a shaft geared thereto, means for driving the shaft including a ffclutcli, a collar on the shaft having peripheral openings, a detent supported adjacent the shaft adapted to engage said openings, a lever for operatingr the clutch, a bar pivoted to. the lever and having cam engagement with the detent for moving it out of engagementl with the collar 1when the clutch is engaged, means for engaging the bar to lock the clutch in idle position, and foot operated means for releasing the bar from such engagement, substantially as set forth.

t6. ln a drilling machine, a rotary table,

'a slip ring supported in an opening therein,

one or more handles mounted in recesses on the sli ring, and a depression atthe rear side o each handle relative to the direction of rotation of the table, substantially as set forth.

17. ln a drilling machine, a rotary table, a slip ring thereon, a grief stem collar on the slip ring, yrecesses in the upper face of said collar, and handles pivotallyvmounted on the collar in front of said recesses, substantially as set forth.

18. ln a Well drilling machine, a rotary table, means sustaining the Weight of the table, means on the under side of the table for driving it, anda split ring having bearing engagement with the periphery of the table beyond said driving means, substantially as set forth.

19. ln a drilling machine, a rotary table, a driving shaft therefor, a clutch member on the shaft, a lever to move said member into and out of driving position, means movable with the lever to lock the clutch member in `idle or driving position, and foot-operated means' for disengaging said locking means, substantially as set forth.

20. In a drilling machine, a rotating table, a shaft geared thereto, means for driving the shaft including a clutch, a collar on the shaft having peripheral openings, a detent supported adjacent the shaft adapted to engage said openings, a lever for operating the clutch, a bar pivoted to the lever said bar having cam engagement with the detent for moving it out of engagement With the collar when the clutch is engaged said lever being manually movable outofengagement with the collar, and means to support thedetent in a position below the level of the tabletop, substantially as set forth. 4 21. In 'a drilling machine, a rotary table, a driving shaft for the table, a disconnect able driving means for the shaft, a shifter lever therefor, and a shaft lock operable independently of or automatically with said shift lever, substantially as set forth.

In Witness whereof, We have hereunto set our hands at San Antonio, Texas, this th day of May, A. D. nineteen 'hundred and twenty-three.

dlllLlUS ll. HOLMGREEN. RICHARD d'. HOLMGREEN.

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