US1456713A - Antisand bearing - Google Patents

Description

May 29,1923. 1,456,713

. G. W. PRICE ET AL v l ANTISA'ND BEARING origmal FiledMay l21', 1921 s sheets-sheet 1 lll/fag May 29, 1923.

- u f 1,456,713 G. wt PRICE-ET Al.

NfrisND BEARING -Or'i-g1na1v vF-jl'd May 2l. 1921 .'5 Sheets-Sheetl 2 if *M May29,1923;

, Y G. W. PRICE ET AL y ANTISAND BEARING original Filed May 21. 1921 3 sheets-'sheet :s

' III/E'IIUI5 Patented May 29, 1923.

UNITED sTATEs PATENT oFF-icE.

Goima'w. PRICE AND oUn'T F. ZIMAN AND ENGINE COMPANY, or sAN rnAN- ASSIGNORS. .lO G. W. PRICE PUMP CISCO, CALIFORNIA.

SKY, 0.7:" SAN' FRANCISCO, CALIFORNIA, I

ANTIsaNn BEARING.

Application led Kay 21, 1921, Serial No. 471,456. Renewed Haren 17, 1923.

To all 'whom z't may concern:

Be it known that we, GoMnn vW. PRICE and CURT F. ZIMANsKY, citizens of the United States, residing in the city and` county of 6 San Francisco'andState of California, have invented a new and useful Improvement in an Antisand Bearing, of which the followin is a'speciiication.

r invention relates to improvements in l shaft bearings for rotary well pum s and the like wherein means are provi ed for reventing the entrance of sand into `the aring. i The primary object of our invention is to provide any improved pump shaft bear nother object is to reduce wear on `a pump shaft bypreventin the entrance of' sand from water pumpe linte the shaft bearings within the pump.

A further object is to circulate vwater around a pump shaft bearing to carry sand suspended inthe water away from the bearm Ve accomplish these and other obgects by means of the device disclosed in the drawings forming a tion -wherein like characters of reference are used to designate similar parts throughout said specification and drawings and 1n which: Figs. 1 and 1l are broken side elevations of a well bearing.

-F ig. 2 is a broken vertical sectionof the pump on a larger scale disclosing our'invention applied thereto.

Fig. 3 isa view similar to Fig. 2 disclosing the application of our improved bear- 4 ing to a pumplhaving a runner of another .ferrin to the' drawingsthe numeral 1 l part of the present specificapump and casings parts being` l broken away and shown in section to dis-` 35 close the application of our improved shaft bearing, within the reduced ed. at in- Number 471,460, May' 21, 1921 and. form 55. no part of the present invention. .The shaft y 4 is provided at the top thereof with a pulle 8 arranged to vbe driven from any. suita le source of power in the usual manner. i 00 The pump 1 comprises a plurality of bowls 11 having an inner wall 12 and an outer wall 14 connected in spaced relation by vertically disposed connecting webs 16 farming water assages117 therebetween.' 05 Runners or impe ers 18 are mounted upon,y the shaft 4 within' the bowls 11, :said-runners 18 having webs or venes 19 adapted to. force water upwardly into the water pasf sages 17 when the shaft bis rotated.v Bear- 70 ings 21 are provided in the bowls 114 to receive the shaft 4 and hold the same in alignmene `In the present'state of the art the bearings are cast as an integral part of the bowl, the '75 .bearing being' connected with an inwardly projecting continuation of the u per orl tion of the inner wall of the bow the. ow" er portion ofthe bearingA being connected the lower portionof'tlie inner wall/by a '8 0 continuous web. The water within the well usuall carries sand and sediment in a suspended condition due tothe operation of the runners in agita'tingv and elevating the water. 'As the water passes upfwardly from 85 the lowermost bowls of the pump .to receive further upward impetus from the rotating varies ofthe next. runner above an eddy due to the change in direction of ow of water is caused adjacent the upperend of the pressiireareaA f at the central-portion of the runner. The reduced pressure adjacent the bearing andthe eddy current formed therein co-'act to cause; sand and sediment carried by the pas 95 ing water to be collected upon the uppermost end of the bearing,.the continuous ro-v tation ofthe shaft causing a portion of such sand and sediment to enter the beai' ing with obviouswdamage by abrasion to 1 both the shaft and the bear'ng.;

To prevent sand and sediment from working into the bearing 21 vwe have provided "a bearing formed separate] from the bc'wl.I The bearing 21 isl provid bearing arranged to be engaged by and 'suitably secured toa shoulder26formed upon with aniinnlar* u ange 24 adjacent the lower end of said the lower end of the inner wall 12 of the bowl. The upper portion 22 of the wall 12 lis bored larger than the diameter of the shaft 4 above the bearing 21 as best disclosed in Figs. 2 and 3 of the drawings, a chamber 27 being formed by the wall 12 and the flange 24 to enclose the bearing 21. The flange 24 is'provided with a plurality of outlet apertures 28 adjacent the bearing 21. The runners 18 are mounted immediately below the bearing 21 so that the vanes 19 will operate in the portion of the bowl 11 immediately below the flange 24. Rota-- tion of the runners 18 causes a reduced pressure area to be formed at the inner end of the vanes 19, this reduced pressure creating a suction operating to draw water to replace that displaced fromin front of the vanes 19, this suction operating to draw water from the chamber 27 through the apertures 28. In this manner a downward circulation of water is caused in the chamber 27 and all sand and sediment Working into the upper end 22 of the wall 12 is carried past the top of the bearing 21 and discharged through the apertures 28 thereby keeping the bearing free from foreign material carried in the water. The portion 22 of the wall 12 is made to allow suflicient clearance for the shaft 4 to-permit free'passage. of sand and sediment therethrough and into the chamber 27 without damaging the shaft by abrasion.

An annular flange 30, having the outer portion thereof downwardly inclined, is

mounted upon the shaft 4 immediately above the bearing 21 to further deflect sand and sediment away from the bearing and into the chamber 27, thereby assisting the circulation above describe in preventing the entrance of such lsand into the bearing.

The sand discharged from the apertures 28 passes back into the pump through apertures 31 (provided in the flan ed type of runner 18 isclosed in Fig. 2. en a runner 18 of the type disclosed in Fig. 3 of the drawings is used no aperture 31 is necessary as the sand works out through the clearance at the outer rim of the runner.

Having thus described our invention that we claim4 as new and desire to secure by Letters Patent is: i

1. The combination with a rotary well pump provided with bowls having water passages, a shaft and runners mounted therein, of a bearing mounted withiny each bowl to receive said shaft; and a suction chamber enclosinglaid bearing and arranged to cause sand a itted into said chamber above said bearing to be drawn awa from said bearing by suction created within the chamber when the runners are operated.l n

2. The combination with a rotary .wel

pump provided with bowls having water passages, va shaft and runners mounted therepump provided with a anaemia ber formed Within each bowl to enclose the bearing therein, said chambers being provided with outlets adjacent the suction area of the runners for circulating water through said chamber and past the bearing to carry sand suspended in the water away from the bearing.

3. The combination with a rotary well having water assages, a shaft and runners therein, of a earing mounted -within each bowl of the pump to receive the shaft; and a chamber formed within each bowl and enclosing said bearing and provided with an upper passage surrounding said shaft and outlet apertures inthe bottom of said chamber communicating with the assages of the bowl whereby rotation of said Arunners will produce a suction and circulation through said chamber to carry water and suspended sand through said chamber and away from the bearing therein.

4. The combination with a rotary well pump provided with a plurality of bowls having water passages, a shaft and runners therein, of a bearing mounted within each bowlof the pump to receive said shaft; and a flange connectmg said bearing with the bowl and forming a suction chamber with said bowl and surrounding said bearing, said chamber having connection with the water passages to producev a circulation within said chamber to prevent the passage 'of water and suspended sand through said bearing when the runners are rotated.

.5. The combination with 4 a rotary well pump provided with a plurality of bowls having water passages, `a shaft and runners therein, of a bearing mounted within each bowl of the pump to' receive the shaft; a chamber formed within each bowl and enclosing said bearing and provided with an upper passage surrounding said shaft and outlet apertures in municating wvith the passages of the bowl whereby rotation of said runners will proplurality of bowls i the bottom of said chamber com.

duce a suction and circulation through said chamber to carry water and suspended sand through said chamber and away from the bearing therein; and an annular flange secured to the shaft between the bearing and said upper passage to deflect said suspended matter away from the bearing.

6. The combination with a 'rotary well pump provided with a plurality of bowls having water passages, a shaft and runners mounted therein, of a flanged bearing secured within each bowl ,of the pump to receive said shaft and to form a chamber with said bowl about said bearing, said chamber having openings at top and bottom thereof to permit a circulation of water therethrough due to the suction created by the pump runners, the bottom openings being outlets water therethro gh due to the suction cre- 15l positioned .between the bearings and the ated by the pump runners, the bottom openouter wall of the chamber to circulate water ings being outlets positioned between thev past the bearing for carrying suspended sand'- bearings and the outer wallv of the chamber 5 away from the bearing. to circulate water past thebearing forca-try- 7. They combination with a rotary well ing suspended sand away from the -bear- 2o pump provided with a plurality of bowls ing; and an annular flange secured to the. having water passages, a shaft and runshaft between the bearing and the upperners mounted thereln, ofA la flanged bearopening into the chamber to deflect said sus- Y 10 ing secured within each bowl of the pump pended` sand away from the bearing.

to receivesaid shaft and to form a cham-l In witness whereof we have hereunto set 215` ber with said bowl about said bearing our signatures. 4 said Chamber having openings at top and GOMER w. PRICE. bottom thereof -to permit a circulation of CURT F. ZIMANSKY.

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