US1108089A - Centrifugal pumping mechanism. - Google Patents

Description

M. B. VAN NESS. GENTBIPUGAL PUMPIING MBGHANISM.

l APPLICATION FILED PEBLIG, 1912. 1 1 08,089, y Patented Aug. 18, 1914.

2 SHEETS-SHEET 1.

Patented Aug. 18, 1914.

M. B. VAN NESS.

GENTRIFUGAL PUMPING MEGHANISM.

APPLICATION FILED FBB.16, 1912. 1 1 08,089.

lllllll .laf-.1.

WIT/VE UNITED sTATEs PATENT oEEIcE.

MARVIN E. vAN Nuss, or4 WELSH, LousIANA.

CENTRIFUGAL PUMPING MEcHANIsM.

Specification of Letters Patent. Patented Aug, 18,1914, Application mea February 1e, 1912. serial No. 677,894.

To all whom t may concern Be it known that I,MARv1N B. VAN Ness, residing at Welsh, in the parish of Calcay sieu and State of- Louisiana, have invented certain new and useful Improvements in Centrifugal'Pumping Mechanism, of which the following is a specification.

, My invention relates to certain new and useful improvements in centrifugal pumping mechanism for wells, and the invention has for one of its objects to provide means for strengthening the connection between the drivingpulley and the line shaft, whereby the pull of theldriving belt will not buckle the line shaft. y

Another object of the invention is to provide means whereby the line shaft and the shaft` casin with its bearings may be'pulled under strain into perfect alinement to pre- -vent undue 5friction in the bearings due to and arrangement of parts, all of which will be rst fullydescribed, and then be speciically' pointed out in the appended claims, reference being had tof the accompanying drawings, .in which Figure 1, is a central longitudinal vvertical section o'f the upper part of the pumping mechanism; Fig. 2, isa vi'ew similar to Fig.

' 1 of the lower part of the mechanism, showing the pump and the' suction pipe with the sealing mechanism that coperates with the suction pipe. Fig. 3 isa cross section on the line 3 3 of Fig. 1. Fig. 4 is a crosssection on the line 4 4 of Fig. 1. Fig. 5 is a detail .section on the line 5-.5 of Fig. 2.

In the drawings in 'which'lilae numerals and letters of reference indicate like parts in all of the figures, 1 is the pit Ior well casing, which .may be of the ordinary construction, and which, at the top receives' the pit top 2.

3 is the pump'head which is securedto the pit top 2, as at 4l, the pump head 3 having an internal thread 5' at` its lowerend to re, ceive the water pipe 6. The pipe 6 may be made either in a single length or in sections )oined together asI at 7, depending onk the sary by the requirements of the particular well in which the mechanism is to be employed. l

9 is the outlet pipe for the wat'er which is joined at 10 over the discharge opening 8, of the pump head 3.

15 designates the pump casing which in the present form of the invention is of the duplex type and has its ends closed by the ' caps 13 and 16, which are secured at 14 and 17, respectively to the casing 15. To Athe upper cap 13, the uniony 11 that receives the lower end of the water pipe 6, is fastened as at 12 so as to bring the pipe 6 in connection with the interior of the casing 15. The suction pipe 19 is connected to the casin '15 through the medium of the union 18. he pump casing 15 incloses the partitions which carry the shaft bearings 20 and 21 respectively, and also inclose the impellers 23.

The construction ofthe Apump e. the parts which include the casing 15 and its`internal parts) may be of any approved construction, as the same per se forms no part of the present invention.

24 is the lower thrust bearing which is secured tothe shaft 22, it being of course understood that when the Water pipe 6, and the shaft casing 44, are made in sections, the shaft 22 would also be made in sections,

coupled together by a sleeve 25, as is the. 'usual practice. The shaft' 22, at its upper end, has a feather slot or groove 26 in` which the key or feather 36 of the driving pulley 35 lies, and with which the set screw 29 of the adjusting nut 28 coperates. The ad- .60 depth of the well, and as may be made necesjusting nut 28 has each facetapped at 30 to receive the set screw 29,whereby minute adjustments may be made, and the set screw always enters into the groove 26 to assure non-slipping of the adjusting nut, it being understood. of course that the upper end of the shaft 22 will be threaded as at 27 to receive the nut 28.

31-is the main bearing member. that fits on the pump head 3 and supports the line shaft 22 and .the im ellers 23; The bearingy 31 is pocketed and ushed 'with bearing metal as lat 33 to receive the long .hub 34 of the pul- 3? ie the upper ball race member that turns with the head. 34 and between which for the shaft 22. lBelow the web 39 of the bearing member 31, the said member is counter-bored as at 41 and tapped as at 42 to receive the upper end of the shaft casing 44 which is threaded at 43 to coperate with the threads 42.v j i The shaft casing consists of a plurality of tubes 44 which are joined to bearings 45 by collars 46, the collars 46 being spaced apart to retain the spider 47 which is swivelly mounted on the bearing 45 and rests snugly in .(but is not secured to) the inside of the water pipe 6. The bearing members 45 have upwardly projecting sleev'es 48 to form pockets 49 to collect anymsediment that may accumulate in the pipe 44 and prevent it working into the bearing face of the res ective bearing member 45. The lowers aft case section 44 is secured to the upper bearing member 21 of the pump at 56 through the medium of a reducing joint 57, as best indicated in Fig. 2 of the drawings.

The bearing member 31 has a water chamber 32 that is provided with an inlet 50 and al water outlet 51 whereby the water of the well may circulate around the bearing proper of the bearing member `31 and keep' the same cool. Thebearing member 31 may also be provided with an oil duct 52 into which oil may be conveyed from a suitable reservoir, not shown, through a pipe 53, if desired.

58 designates the strainer pipe into .which the suction pipe 19, projects.

60 is the seal which effects a snug joint between the pipes 19 and 58, and the seal 60 is in the nature of a collar,` which slides on a pipe 19, and has its lower face coniformed to project into the pipe' 58. ln order to assist in forming a tight seal and also to support the strainer pipe, it may be provided at its upper end with a collar 59 having lugs 62 to enter bayonet slots 65, in the body 64 of the pit bottom member 63, as best shown in Fig. 2 of the drawings.

ln putting the pump in the well, the well pit is of course first placed into position, and the strainer pipe likewise. The pump casing and its carried parts, the suction pipe 19, the water pipe 6, the line shaft and the shaft casing are all assembled together with the pum head yand 'pit top before being lowered into the well. After they are lowered into the well, the bearing member 31 is put into place and screwed to 'the upper pipe section 44. By applying a pipe wrench to the bearing member 31 and turning it, tension can be put on the shaft casing 44 to draw it into absolutely' true alinement and thereby aline all of the bearings 45 (the number of which-will depend on the depth of the well) so that the shaft 22 will not bind in the said bearings. After the required tension has been applied to the casing 44, the bearing member 31 is bolted down by the bolts 55 to the pump head. The. pulley 35 is slipped into place and the impellers 23 properly adjusted bythe nut 28. The pump is then ready for operation, it being understood of course that the seal 60 is held on the pipe, and when the said pipel is lowered into place, it effectively seals the connection between the suction pipe 19 and the strainer pipe 58.

ln operation, power is applied to the pulley 35 to turn the shaft 22, thereby setting the impellers 23 into operation, to suol; the water up the pipe 19, pass it through the pump `casing 15 and force it upwardly through the waterpipe 6 in the duct formed between such pipe and shaft easing 44, out through the outlet 9. rlhe water comes in practically direct contact with the bearings 45 and'collars 46 and thus insures the proper cooling of the bearings 45, while the water in the chamber 32 will insure proper cooling of the hearing 33 at all times.

From the foregoing, it will be observed, by my present construction, a more etlicient pump is contained than heretofore, and the parts are so combined and designed that with a minimum effort in the assembling of the parts, and at any other time when necessary, absolute, alinement of the various bearings 45 can be had by simply tightening up the connection between the upper section 44 of the shaft casing and the bearing member 31.

F rom the foregoing description taken in connection with the accompanying drawings, it is believed the complete construction, operation, and'advantages, of the invention will be apparent to those skilled in the art to which it appertains.

`What I. claim is 1. The combination with the pump casing, the impeller therein, a shaft bearing carried by the pump casing, a line shaft passing through said bearing and carrying said impeller, a pump head, means for forming a water conduit for suspending said pump casing Ffrom said pump head, la head bearing member through which said line shaft projects, said head bearing member being mounted on saidl pumphead, a set of line "shaft bearings between said head bearing member and said pump easing member, and means connecting all of said bearing members together, and having provisions in virtue of which as said head bearing member is turned' on said pump head, all of said bearing members will be put under tensinyand drawn into alinement, and a driving pulley on said line shaft.n 2. ln a pumping mechanism, the combination with the pump casing, the impeller mounted therein and the pump casing line shaft bearing, ofa pump headv and a vpipe. connecting said pump head with saidpump casing for suspending the same and forming Water conduit, a head bearing member mounted on said pump head, a line shaft passing through said bearing members and carrying said impeller, an intermediate shaft bearing between said pump casing bearing and 4`said head bearing member, a pipe embracing said line shaft and rigidly' connected lto said pump casing bearing and to said intermediate bearing, a second pipe connected to said intermediate bearing and to said head bearing, the connection between said head bearing and said pipe being such that as said head bearing is turned7 said pipes that embrace said line shaft and said intermediate bearing, will be put under tension' to bring all of sai-d bearings into aline# ment, substantially as shown and described.

3. In a pump of the character described,' a pump casing, an impeller operating therein, a line shaft bearing carried by said casing, a pump head, means for rigidly suspending said pump casing from said pump head, to maintain said pump casing immovable With relation t0 said pump head, a head bearing member mounted on said pump head, a line shaft passing through said head bearing member and through said pump casing bearing member and carrying said impeller, means for driving said line shaft, an intermediate line shaft bearing between r said head bearing and said pump casing bearing, a pipe rigidly connected at one end with said intermediate bearing and rigidly connected at its othei` end with said pump casing bearing, another pipe rigidly connected with said intermediate bearing, and

`means coperatively connecting Said other pipo with said head bearing, in virtue of which when said head bearing is turned 0n said pump head, tension will be applied t0 said pipes and said intermediate bearing to aline said intermediate bearing with said head bearing and with said pump casing hearing, substantially as shown and for the purposes described. 4. In a pump of the character described, a pump casing, an impeller operatingthercin, a line shaft bearing carried by said casing, a pumpv head, means for rigidly suspending said pump casing from said p ump head to maintain said pump casing immovable with relation to said pumpfhead` a head hearing member mounted on said pump head, a line shaft passing through said head bearing member and through said pump casing bearing member and carrying said impeller. means for driving said line shaft. an intermediate line shaft bearing between said head bearing and said pump casing bearing, a pipe rigidly connected at one end with said intermediate bearing and `rigidlyconnected at its other end Iwith said pumpcasing bearing, another pipe rigidly connected. with said intermediate bearing, and means coperatively connecting said other pipe with said headbearing, in vir-y tue of which when said head bearing is turned on said pump head, tension will be applied to said pipes and said intermediate bearing to aline said intermediate bearing with said head bearing and with said pump casing bearing, said head bearinglmemberl havinga bearing pocket, said shaft driving means including a pulley having a bearing yhub mounted in said pocket, and thrust bearings interposed between saidluband said'V head bearing member to sustain the thrust of said line shaft and its carried parts.

5. In a pump of the character described,

a pump casing, an -impeller operating there,-

in, a line shaft bearing carried by said casing, a4 pump head, means for rigidly suspending said pump casing from said pump head to maintain said pump casing immovable with relation to said` pump head, a Y

head bearing member mounted on said pump head, a line shaft passing through said head bearing member and through said 'pump casing bearing member and carrying said impeller, means for driving said line shaft, an intermediate line shaft bearing between said head bearing and said pump casing bearing, a pipe rigidly connected at one end with said intermediate bearing and rigidly connected at its other end with said pump casing bearing,`another pipe rigidly com nected with said intermediate bearing, and means cooperatively connecting said other pipe with said headibearing, in virtue of' which when said head bearing is turned on said pump head, tension will be applied to said pipes and said intermediate bearing to aline said intermediate bearing with said head bearing and with said pump casing bearing, said head bearing member having a bearing pocketpsaid shaft driving means including a pulley having a bearing hub mounted in said pocket and thrust bearings i interposed between said hub and vsaid head bearing member to sustain the thrust ot said line shaft and its carried parts, said line shaft having a key groove, and said pulley having a key for enteringsaid groove, said line shaft having a threaded portion, and a nut threaded on said threaded portion to engage said pulley for adjusting said line shaft to adjust said impeller, said nut having a plurality of faces provided with tapped apertures, and a set screw adapted to pass through said apertures and project into .said key groove to hold said nut from turning.

G. In al pump mechanism, a pit top. a pump head mounted on said pit top, a pump casing. a water'pipe connecting said pump head with said casing to suspend the said casing, an impeller operating in said casing, a line shaft bearing 'carried by said casing, a head lbearing mounted 'on said pumpv head, a sectional shaft casing rigidly secured at one end to said pump casing bearing and adjustably seswivelly mounted on said lbearing sectionv and having arms engaging the internal1 wall of said first mentioned pump casing suspending pipe, said head bearing member having a deep bearing pocket and a driving pulley having a bearing hub mounted in said pocket and secured toV said shaft, in virtue of `which said shaft may be driven.

7. ln a pumping mechanism the combination with the pump casing, the pump head and the Water pipe connecting said casing of the pump With said head, the impeller and the line shaft, of a head bearing mounted on said pump head' and having a passage through which said line shat't projects, said head bearing having an elongated bearing pocket, a pulley having an elongated bearing hub mounted in said pocket and connected to said shaft to turn the same, a thrust bearing in said pocket for said pulley hub, and a water cooling jacket surrounding said elongated bearing pocket and means for edecting a circulation of water through said jacket.

8. ln apumping mechanism the combination with the pump casing, the pump head and the Water pipe connecting said casing oiA the pump with said head, the impeller y and the line shaft. of a head bearing mounted on' said pump head and having a passage through `which said line shaft projects, said head bearing having an elongated bearing pocket, a pulley having an elongated bearing hub mounted in said pocket and connected to said shatt to turn the same, a thrust bearing in. said pocket ifor said pulley hub, and a Water cooling jacket surrounding said elongated bearing pocket and means for effecting a circulation of Water through said jacket, an intermediate line shaft bearing member, a spider swivelly mounted on said intermediate member and located in said pump casing' suspending pipe, collars on said intermediate bearmg member for reytainingr said spider on the same, and means for'holdingsaid intermediate bearing member in, position on the shaft.

9. ln apumping mechanism the combination with the pump casing, the pump head and the Water pipe connecting said casing of the pump with said head, the impeller and the line shaft, a head bearing mounted amaca@ on said pump head and having a passage through which said line shaft projects, said head bearing having an elongated bearing pocket, a pulley having an elongated bearing hub mounted in said pocket and connected to said shaft to turn the same, a thrust bearing in said pocket for said pulley hub, and a lWater coolingv jacket surrounding 4said elongatedbearing pocket and means for effecting a circulation of water. through said jacket, an intermediate "line shaft bearing member, a spider swivelly mounted on said intermediate member and located in said pump casing suspending pipe, collars on said intermediate bearing member for retaining said spider on the same, and means for holding said intermediate bearing member in positionon the shaft, and coperating with said head bearing member for maintaining said intermediate bearing in alinement with said pump casing bearing member and with said. head bearing.

l0. in pumping mechanism .a pump head, a pump casing, a Water duct uniting said pump head to said pump casing, an impellcr in said pump casing, a line shaft passing through said pump head and said duct into said .pump casing to carry said imp eller, a head bearing member mounted on said pump head and including `an elongated bearing chamber, a pulleyhaving an elongated hub mounted in said bearing chamber` said head bearing projecting into said pulley, said head bearing including aY Water jacket spaced around said elongated bearing 103 chamber, and also including a lubricant conveying duct for delivering lubricant into said elongated bearing chamber, and a thrust bearing lmounted in said chamber to support said pulley and shaft.

l1. lin a pumpingmechanism a pump head, a pump casing, a Water duct uniting said pump head to said pump casing, an impeller in said pump casing, a line shaft passing through said pump head and said duct 11o into said pump casing to carry said impeller,

a head bearing member mounted on said pump head and including an elongated bearing chamber, a pulley having an elongated hub mounted in said bearing chamber, said'iis head bearing projecting 'into said pulley, said head bearing including a Water jacket spaced around said elongated bearing chamber, and also includin'ga lubricant conveying duct for delivering lubricant into said elon ia@ gated bearing chamber, and a thrust bearing mounted in said chamber to support said pulley and shaft, said head bearing member including a portion projecting .into .said pump head, and a shaft casing inclosing said m5 shaft and connected with said head bearing projecting portion and With said pump `casing, substantially as shown and described.

l2. iin a pumping mechanism a pump head, a pump casing, a Water duct uniting 13e said pump head to said pump casing, an impeller in said pump casing, a line shaft passber, a pulley having an-elongated' hub mounted in said bearing chamber,'sai`d head bearing projecting into said pulley, said head bearing including a water jacket spaced around said elongated bearing chamber, and also including a lubricant conveying' duct for delivering lubricant into said elongated 'elongated bearin bearing chamber, and a thrust bearing mounted in said chamber to support said pulley and'shaft, said head bearing'member including a portion projecting into said pump head, and a shaft casing inclosing -said shaft and connected with said head bearing projecting portion and with said pump casing, said shaft casing including a plurality of pipe sections and interposed bearing sec-y tions, collars uniting said bearing sections with the respective pipe sections, and a spider swivelly mounted onthe respective bearing sections, between the collars thereof.

.13. `In a pumping mechanism a pump head, a pump casing, a water duct uniting said pump head to said pump casing, an impeller in said pump casing, a line'shaft passing through said pump head and said du'ct into said pump casing to carry said impeller, a head bearing member mounted on said pump head' and including an elongated bearing chamber, a pulley 4having an elongated hub mounted in said bearing chamber, said head bearing projecting into said pulley,

said h'ead bearing including a water jacket spaced around said elongatedbearing chamber, and also including a lubricant conveying duct for ,delivering lubricant into said chamber, and a thrust bearing mounted 1n said chamber to support said pulley and shaft, said head bearing ymember including a portion projecting into said pump head, and a shaft casingl inclosing said shaft and connected with said head bearing projecting portion and with said pump casing, said shaft casing including a plurality' of pipe sections and interposed bearing sections, collarsv uniting said bearing sections with the respective pipe sections, and a spider swivelly mounted on the respective bearing sections, between the col.- lars thereof, said pipe casing bearing sec tions including sleeves projecting upwardlv around said shaft into the adjacent shaft casing section and of less diameter than the same to leave a sediment collecting pocket, substantially as shown and described.

14.-. In a pumping `mechanism a pump casing or pit, a pit top and a pit bottom, a centrifugal pump suspended from said pit top and including a suctionI pipe projecting through said pit'bottom, a strainer ipe supported from said pit bottom, sai Vsuction pipe extending into said strainer pipe, and a welll seal slidablymounted on said suction pipe for projecting into the end of said strainer pipe to seal the connection between said strainer pipe and said suction pipe, said strainer pipe having a collar provided with lugs,and said pit bottom having a lmember provided with a bayonet slot to receive said lugs, substantially as specified.

15. In a pumping mechanism, the combi-- nation with the well pit, the pit top and the pit bottom, of a pump mounted in the cascasing suspended from the pump head, a line 4shaftpassing through said` pump head into said pit casing and into said pump casing, an impeller in said pump casing, a suction pipe communicating With said pump casing, a pipe beneath said pump casing into which said suction pipe projects, and a gravity set well seal sl'idably mounted on said suction pipe to engage said pipe into which said suction pipe projects and eii'ect a sealing connection between the same.

- 16. In a pumping mechanism, a head bearing for the line shaft, said head bearing being. adapted to be mounted on the pump head and having a passage through which the line shaft projects, said -head bearing having a pocket, a pulley having a hub projected into and havin bearing relation with said pocket, and a t rust bearing for the pulley hub mountedl in said pocket, and means for applying a cooling agent around said pocket to cool the'vbearing.

17. In a pumping mechanism the combination with the pump casing, the pump head and the water pipe connecting said pump casing with said head, the impeller and the line shaft, of a head bearing mounted on said pump head and having a passage through which said line shaft projects, said head bearing having an elongated bearing space, a pulley having an elongated bearing hub mounted'in said space and connected to said' shaft to turn the same, a thrust bearing for said pulley hub, said thrust bearing' and hub being contained in the same chamber, and a Water cooling jacket surrounding said elongated bearing space and means for effecting a circulation of water throughsaid jacket.

18. In a. pumping mechanism the combination with a pump head, of a pump casing, a Water duct connecting said pump head to said pump casin an impeller in said pump casing, a line s aft passin throu h said pump. head and said duct into sai pump casing to carry said impeller, a head bearing member mounted on said pump head and G mesme@ ing and hub being contained in the same chamber, said head bearing including a" water jacket spaced aroundsaid elongated bearing, and also including a lubricant conveying duct for delivering lubricant into said chamber.

. MARVIN B. VAN NESS.'

I Witnesses:

W. L. STEWART, Wm B. f GABnnRT.

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