US1429487A - Deep-well pump - Google Patents

Description

INVENTOR. Wlburl'udlon A TTORNEY PatentedSept. 19,

l m 2l I II I i Ii:

l I E I II W. F. BUDLONG, DECD.

E. I. BUDLONG, EXECUTRIX.

DEEP WELL PUMP.

APPLICATION FILED 0501.1920.

Patented Sept. '19, 1922. l 1,4297

WILBUB. r. nunLoNe, :DEG-msm), LATE or lSAN Josu, cAitIronNIA,l BY ENNA I. BUDLoNe, nxncu'inix, or sAN Josu, CALIFORNIA, AssIeNon To GANPBELL e nunLoNe MAQHINE wenns, or SAN JOSE, CALIFORNIA, vA CORPORATION on CALIFORNIA. i

DEEP-WELL PUMP.

Application med December 7, 1920. `serial No. 428,875.'- To all whom t may concern: ings, 10 indicates a well casing of any de;

Be it known that WILBUR F. BUDLQNG, Sired length and through which a' liquid is I deceased, formerly a citizen of the United elevated. Mounted in this well casin is' a 50 States, residing at San Jose, in the county pump Casin 11, the upper end of which is of Santa Clara and State of California, did sultabl anc ored, and receives apump drivinvent a new and useful Improvement' in ing unit 12. This unit comprises an outlet Deep-Well Pumps, of which the following connection 13,- a bearing frame 14, and a is a specification. driving 'pulley 15. The outlet connection is 5-5 This invention relates to pumps, and partted with. an overflow pipe l16, through 1o ticularly pertains to deep well pumps. Which liquid maybe conducted from the In the application anduse of deep well casing. The portion 13 is preferably formed pumps, considerable diiculty has vbeen exwith a fiange 17, by which it may be rigidly in position, and in supplying a lubricant to the upper end ofthe casing 11. The bearing 15 all the bearings thereof. It is the principal structure comprises a plurality of upright obj ect of the present invention, therefore, arms 19, at the upper end of which a vertical to provide a pump structure in which the bearing is disposed. This bearing redrive shaft for the rotor will be given sufliceives the end of a central mandrel 21, which 65 cient stability to prevent it from excessivelyr` is rigidly and non-rotatabl positioned with- 2o vibrating within the pump casing, and furint e pump -casing 10. he upper end of thermore providing means by which a conthismandrel 1s threaded and fitted with a tinuous stream of'lubricating oil will be. aiitensioning nut 22, which nut rests upon the tomatically circulated through the bearings upper fiat face of the bearing 20. 70 of the shaft and the pump rotor. The mandrel 21 is suspended from the nut 25 The present invention contemplates the .22, and is secured within a threaded bearuse ofthe usual tubular pump casing, with- 111g 23 at ltS- lOWeI' end. AS ShOWn in Fig. in which a central fixed mandrel -.is mount- 2, the mandrel consists o-f a pluralityl of may be attached said units having rotors bushings 24:. These bushings are of uniform driven by a tubular shaft disposed over the diameter, and act as cylindrical bearings central fixed mandrel, and rotating therearound which a tubular pump drive shaft 25 around. may rotate. It is 'also to be understood that The invention is illustrated by way of eX- bushings similar to the one by which the sec- 80 ample in the accompanying drawings, in tions are connected may be disposed upon the which; mandrel at any desired points throughout Figure 1 is a view in vertical section and its length, for the purpose of supplying adelevation, showing the application of the ditional bearingsurface for the shaft 25. present invention, i `The shaft. 25 is fitted with a bearing col- 35 Fig. 2 is an enlarged View in vertical seclar 26 near its upper end, and'which collar 40 tion and elevation, showing the upper end is formed with ball race to receive ball bearof the structure with which the present inings 27, which members are supported upon vention is concerned. a lower bearing plate 28. This plate is car- Fig. 3 is an enlarged view in section and ried by the frame 14. The pulley 15 is keyed 9e elevation, showing the lower end of the to the tubular'shaft 25, and affords means structure, more particularly disclosing the for its rotation. The upper end of the sha-ft pump rotors and their housings. is fitted with a bearing 29, throu h which Referring more particularly 'to the drawthe mandrel 21 extends. It is to e underperienced in holding the vertical pump shaft secured to a bolting flange 18, threaded to ed, and' to the lower end of which pump units sections which are connected by threaded 75 vet stood that there is a running fit between bearing 29 and the tub-ular shaft, as well as between the various bearings24t and the shaft. The lower end of the tubular shaft 25 is equipped with one or more rotary 1mpellers 30. Tn Fig. 3, two of these members are shown superimposed, one above the other. These impellers are of common con` struction, having a 'central induction opening 31, and circumferential eduction openings 32, occurring between the blades of the impellers. Pump housingsI are disposed around the impellers, and are suspended from the lower end of the well casing 11. The uppermost of these housings are formed with threaded collars 34: to receive the lower end of the pump casing. The body of the housing is enlarged to provide the desired liquid circulating space, and to receive the `impeller 32. The lowermost pump housings areeach formed with bolting flanges 35, by which the next succeeding housing may be secured thereto. Radial webs 36 are formed within each housing, and are cast integral with guide bearings 37, through which the tubular drive shaft extends. Each of these uide bearings is formed with an enlarged ange 38 at its lower-end, to prevent vertical movement of the drive shaft and its rotors. The lower pump housing is mounted upon a suction end casting 39, within which the threaded bearing 23 is formed. This suction casting in turn may be equipped with a suction pipe 40.

Attention is directed to the fact that the tubular drive shaft extends entirely through' the lowermostrunner 37, thereby insuring that a lubricant passing down the interior surface of the shaft and around the various bearings 24, will have an opportunity to readily pass out through, the lower end of the shaft. This action will, of course, be influenced bythe suction action produced by the upward flow of the liquid, thereby automatically creating a circulation of the lubricant throughout the pump system.

Tt is to be understood that a liquid lubricant may be supplied the various bearings 24 by any desired means, although in the present instance a feed duct 41 1s formed longitudinally of the upper end of the mandrel 21, and communicates with the interior of the drive shaft 25 at points below the upper bearin 29.

Tn operation o the present invention, the structure is assembled as shown in the drawings. Tt is to be understood that the pump casing, pump housings, tubular drive shaft, and central mandrel may be progressively assembled in sections until the pump rotors have been lowered to a desired depth. The driving structure at the upper end of the shaft 25 may then be assembled and power suitably applied to thepulley 15. This will Maase? cause rotation of the drive shaft 25, with a simultaneous rotation of the impellers. The liquid will thus be elevated.- Tn the event that there is any particular weaving of the drive shaft and mandrel, it is possible to tension the mandrel by tightening the nut 22. This will act to draw the mandrel tight between the bearings 23 and 20, 'and will stabilize the rota-ry movement of the shaft. Tt will also be evident that due to the tubular `formation of the drive shaft, considerable conservation of material may be made without sacrificing strength. As the shaft rotates, lubricant will be continuously delivered through the duct 41, and will thus gradually gravitate around the various bearings and into the lower pumphousing.' This gravity action will insure that all the bearings will be continuously and uniformly lubricated, and that a downward pressure will be exerted, sufficient to exclude an upward pressure of liquid from the wel Tt will thus be seen that the pump structure here disclosed provides means for rigidly supporting a pump shaft without the use of an elaborate system of bearings, and that at the same time the shaft will be adequately lubricated.

While T have shown the preferred form of my invention, as now known to me, it will -be understood that various changes might be made in the combination, construction and arrangement of parts by those skilled in the art, without departing from the spirit o-f the invention as claimed.

Having thus described my invention, what T claim and desire to secure by Letters Patent, is:

1. A ldeep lar pump casing, ing the lower end well pump comprising a tubua pump structure supportthereof, a suction end casting disposed at the lower end of the vpump structure, a. driving unit at the upper end of the pump casing, a sec-tional non-rotating mandrel extending from the driving unit to the suction end casting, a sectional tubular pump shaft adapted to rotate around said mandrel, and bushings connecting the sections of the mandrel and forming bearing members thereon and around which the pump shaft has a running fit.

2. A-well pump comprising a pump casing, a lixed sectional mandrel, a tubular pump shaft rotatable. around the mandrel and spaced therefrom, bushings for connecting the sections of the mandrel and forming 'bearings contacting with the interior of the tubular pump shaft, the said mandrel having means therein for supplying a lubricant to the interior of the pump shaft whereby the bushings will retard the flow of lubricant at the point to be lubricated.

3. A deep well pump comprising a fixed mandrel, a tubular pump shaft rotating around said mandrel, and an upper and my hand in the presence of two subscribing v10 lower impeller carried by the tubular pump witnesses. shaft, meajps 111501' supplyinga hlloricaxt to the EMMA I BUDLONG lnterioro tepum sa tesaiump l 5 shaft terminating inlthe sanie plane wih the Ewlewtdme of Ne estate of Wdbw F' Bud' lower impeller, whereby suction is produced ong cease 'to' draw the lubricant through the pump Witnesses: shaft. BERNIGE BUDLONG,

In testimony whereof, I have hereunto set F. J. Ammann.

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