US1853046A - Pumping jack - Google Patents

Description

B. G. GOBLE April 12, 1932.

PUMPING JACK 2 Sheeiis-Sheet 1 Filed Nov. 8 1926 4 Z O a Z 3 0 o 2 4 0 ii] Fr I i ll! U 3 4 4 4 4 0 .2 WW 0 W F W m a fl ,M El j a2 w x gill April 1932. B. G. GOBLE I 1,853,046

PUMPING JACK Filed Nov. 8, 1926 2 Sheets-Sheet 2 75 iNvE ATTORNEY Patented Apn- 12,1932

UNITED;,sTATEs PATENT O'F'FIFCEY snnr'deonrn, or' 'rULsA, oxrinnoivranssrenonro w. A. QUIGLE ruivrrme JACK Application filed November 8, 1926f Serial No. 146,993.

My invention relates to acks and more particularly to a device of this eharacten for use in pumping. oil wells; the principal object of the invention being'to maintain the jack frame in alignment to provide true vertical lift of the polishrod. 7

Another object of the invention is to so con.

stru'ct the jack frame and connect thefbraces I therefor. as to eliminate torsional strain that '10 might tend to shear anddisrupt connection of these elements.

' r 'A stillfurther' object of the invention is to soxattach the braces that the frame may be readily adapted to any type of foundation,

515 as well as to provide for adjustmentv of the,

'braces after; adjustment of the jack fora varied leverage.

In accomplishing these and other objects of v the invention Ihave provided improved details of structure, the preferred-forms of. which are illustrated in the accompanying p Fig. 3 is a sectional longitudinal view-of" the. connectiontaken-1 at .rightlangles to the showing in Fig. 2.

Fig. lisan end elevationalview of afpit man; connector for the jack. Fig. 5 is a side elevational view of the pitman connector.

the same. 7

Fig. 7 is a view illustrating a modified" form-of connection for, the frame braces.

m Fig. Sis a side elevational view ofthe-jack as equipped withi counterweights andillus- L-trating the installation on "a: concrete foun dation." i

Fig. 9Lis a vertical cross section on the line 9-9 of Fig. 8. V

The foundation for the jackg as shownin Fig. 1, comprises spaced I beams l and -Zresttending laterally from the well casing 3 {the l perspective viewof a jack v I, v 23inthechannels- Fig. 6 is a crosssectional, viewfthrough I end a horse head Qianda pair of connecting r as in common oil fieldpractice.

mg on'the ground or a derrick floor; and ex p g prises spaced longltudlnal members 31, up I beams beingconnected at their front.ends by I an angle 4 extending lacrossthe lower faces of the I beam fiangesand at theirrear ends. by an angle 5 extendingacross the tops ofthe,

beams and bolted'to the flanges as at 6. The i foundation frame thus constructed is tied to 65 the well casing 3 by a clamp 7 which extends around the side of the casing opposite to the foundation and is fastenedto theangle 4 by bolts 8 extending through ears 9 on the clamp and through the vertical leg of the angle i.

Mounted perpendicularly and in side contact with theI beams at their rear ends and in engagement with the angle 5 are spaced, inwardly facing channels 10 and 11 forming a standard for pivoting the walkingbeam12 as hereinafter described,the channels 10 and '11 being bolted to the: websof the I beams l and 2 as at 13 andl l and to the vertical leg of the angle 5 bybolts 15 which pass through the angle legs and through the side flanges of the respective channels. v p i I j The walking beam 12 comprises outwardlyfacing, spacedchannels 16and'17; of substantially the length of the base beamsl and. 2, andsecured together at their rear ends by a Z Y casting 18 constituting a bearing member for the walking beam,v the casting having trunnions 19 and 20 projecting from itssides.

The trunnions 19 and 20 are'pivotally" mounted in inwardly facing journal castings-$0.

21and 22carriedadjacent the upper ends of the channels} 10 and 11;.respe'ctively. the castings being. vertically adjustable on 1 the channelsby selective location in pairs of holes Y The walking b'ean1f12 carries at its forward through the stuffing 110x29 at the end-of the Well tubing andi'sconnected to the sucker rods Pivotally mounted onthe top faces of the base I beams land 2, substantially midway 95 I of theirlength,"isa rocker member for ac- 'tuating the walking beam '12." The rocker member 30 is of triangular shape aud'comr right members 32 and diagonals 33, all, of

' ity which are structural shapes, the upright and diagonal members being connected to ends of the horizontal members by bolts, as at 34 and 35, and the upright and diagonal members are connected by an arcuate casting or bearing member 36 located eccentrically with relation to the point of pivot of the rocker member for a purpose hereinafter described.

The pivotal mounting of the rocker on the base beams comprises a plate 37 bolted to the top flanges of the base beams by bolts 38. Receivable in the plate 37 is a trunnion member 39 bolted to the longitudinal members 31 of the rocker 30 about midway of their length, as clearly shown in Fig. l.

The longitudinal members of the rocker protrude slightly beyond their connection with the diagonals and carry a casting 4O fixed thereto for pivotally mounting a pitma'n 41 for supporting and actuating the walking beam 12 in swinging synchronism with the rocker.

The pitman preferably comprises a tubular member having a casting 42 clamped to its lower end and receivable in the casting 40 and a similar casting 43 is clamped on its upper end pivotally engaging a casting 44 bolted adjacent the forward end of the walking beam. The casting 44 (shown in detail in Figs. 4, 5 and 6), comprises a trough-shaped head 45 having upwardly extending ears 46 at its ends for receiving a bolt or like pivotal connector for connection with the casting 44 on the walking beam. Projecting downward- 1 from the head 45 and preferably integral therewith is a split socket member 47 for re ceiving the end of the pitman tube and which is bolted thereto by a bolt 48 extending through the casting and the pitman tube as clearly shown in Fig. 6. The split casting allows for drawing the socket member tightly about the pitman tube so as to be frictlonally engaged thereby and prevent liability of a loose connection.

The rocker member is swung on its pivotal mounting to rock the walking beam through the pitman connection to reciprocate the sucker rods in the well by a pull rod or shackle line 49 connected to the rocker by a chain section 50 running over the arcuate casting 36 heretofore described. Due to the eccentric location of the arcuate casting in relation to the pivoting point of the rocker member the leverage of the rocker is in realvaried throughout its limit of travel so that with the use of the rocker a substantially uniform amount of power is required to lift a load vertically from the beginning to the end of its stroke.

In order to provide an easily operated ack and to prevent twisting and bending of the polish rod by swinging of the Walking beam it is necessary to position the horse head in exact vertical alignment with the polish rod and to maintain this position at all times, and

in order to thus position the horse head I have provided the jack with novel adjusting features whereby the beam may be moved from side to side or backward and forward until the horse head is in exact alignment with the polish rod.

In accomplishing this feature I have also provided bracing means for rigidly bracing the jack against the severe pounding and torsional strains to which the jack is subjected when in pumping operation.

The angle 5 connecting the rear ends of the base beams projects from opposite sides of the beams to provide an anchoring point for lateral braces 51 and 52 comprising angle irons securely bolted to the ends of the angle 5 as at 53 and 54 respectively and welded to the upper ends of the braces are threaded rods 55 which project through apertures 56 in angle-shaped brackets 57 bolted to the web portions of the column channels as at 58. The apertures 56 are located in laterally projecting portions 59 of the brackets and the projecting portions are recessed at each side concentrically with the apertures, as at 60 and 61, to provide arcuate seats for semispherical washers 62 and 63 loosely received on the threaded rod and tightened against the projecting ears by nuts 64 and 65 threaded on the rods and engaging the flat faces of the washers, as best shown in Fig. 3.

It will thus be seen that I have provided a universal connection for the braces and that the semi-spherical washers can position themselves in their seats so that there is a direct pull on the threaded rods since the nuts tightly and snugly engage the flat faces of the washers and the washers seat firmly around their periphery for a maximum of angles at which the braces may extend.

The column may now be moved laterally to shift the horse head into vertical alignment with the polish rod by taking up and slacking oil the nuts on the rods until the braces are of the proper length to give the required lateral adjustment of the beam.

To brace the column in the opposite direction or in the plane of the jack and to shift the horse head into alignment with the polish rod, similar braces 66 and 67 are provided adjustably connected to forward side flanges of the column channels and to the sides of the foundation beams forwardly of the column, the column connections being made in the same manner as the connections for the lateral braces and through the webs of the beams so that either brace may be lengthened or shortened at the connections to the columns to secure the proper positioning of the walking beam.

In Fig. 7 I have shown a modified form of adjustable connection wherein the ear of the bracket 57 is provided on its side adjacent the brace with an arcuate groove 69 and an inwardly tapering slot 70 for the threaded r and the forward braces are connected to the block as at 72. The column channelsaresecured to spaced concrete blocks 73 and 74 set rearwardly of and spaced from'the block, the lateral braces beingbolted to the blocks as at 5.

I have also spread the channel members as indicated at 7 6 to provide room for coune terweights 77 mounted on a rearward extension 78'of the rocker member. In other re spects this jack is of substantially the same construction as the jack heretofore described.

From'theabovedescription it will be apparent that I have provided aj ack'fr'ame that may be readily constructed of straight structural shapes without bending and which is strong, easily put intopumping position,

which may be easilyadju'sted for theproper operation of the jack, and wherein thebraces are so positioned to resist the pushing and I pulling strains offered by the pull rodsin the operation of the pump.

What I claim and desire to secure by Letters Patent is:

1. In a line-actuated jack of thecharacter described, a'rocker having a point of pivot and an arcuate bearing surface in eccentric relation with said pivot'for engaging the line.

2. Ina line-actuated jack of the character described, a rocker bounded by three plane edges having a pivot on one of its plane edges, and an arcuate bearing surface in eccentric relationwith said pivot connecting the other two plane edges and engaging the line.

7 3. In a line-actuated jack of. the character described, a. rocker including a. longitudinal memberhaving a point of pivot, an upright ,member secured to-the longitudinal member,

a diagonal member secured to the longitudinal member,,and means for connecting'the, upright anddiagonal members, said means having anouter arcuate bearing surface in eccentric relation to 'said pivot for engaging the line.

4t.v In a line-actuated jack of the character described,'a rocker including a longitudinal member having apivot intermediate its ends,

1 oppositely inclined amembers having their 6 lower endssecured to the longitudinal memher, and an arcuate bearing member 1n eccentric relation with said pivot for engaging, V the line and for-connecting the. upper ends 7 I of the inclined members. 7 v

. 5. In aline-actuated jack of the character described, a rocker including a longitudinal member having a pivot intermediate its ends, a bearing member havingfjan'arcuate outer face in eccentric relation with thepivot for engaging the line, a pair of diverging supporting members connected to opposite ends. of'the bearing member and to the longitudinal member on opposite sides of the pivot,

and a counterweight on, one end of the longitudinal member. g

6. In a line-actuated jack of the character her having an arcuate outer surface for engaging the line, a pair of inclined members having their upper ends connected to opposite faces of the bearingmember adjacent one described, a rocker includinga bearing mem- I end of said bearingmember, a pair of diagonal members having their upper ends connected to opposite faces of the bearing memher adjacent the opposite end of the bearing member, and a longitudinal member having opposite endsconnected respectively to the lowe'rends of the inclinedand diagonal mem- I I

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