US1634988A - Sand reel - Google Patents

Description

July 5, 1927.

1,634,988 C. F. FERNALD SAND REEL Filed Feb; 6. 1925 2 Shgets-Sheet 1 y Bali-1am. 1,634,988

' C. F. FERNALD 1 SAND REEL Filed Feb. 1925 Z Sheets-Sheet 2 WWW Patented July 5, 1927,

, cHARIQns JAMES w,

CALIFORNIA r. FERNALl on osANsELns,

swenrz mnnnn, oshnos ANGELES, CALIFORNIA;

essienon on 'oNE-Ii LF ro j sAND REE This invention-relates to improvements in bearings and shifting dev ces for shifting or swinging a sand reel shaft upon a well.

drilling derrick.

an improved bearingandlmeans for shifting Figure the bearing so that the sandreel shaft may 'be shifted, causing f the friction pulley v Imou'n'ted thereon tov engage the band wheel .upon the derrick.

With the foregoingfand'other objects in view which willbe made manifest 'in the v following detailed description'and pointed out in theappended claim,

tratiye embodiment of the invention, where- 1n:

the'band wheel; v

Fig; 2 is a rear elevation of the derrick' and may 10 consider-ed'as taken substantially Jon th-e'line 2 -2 of'Fig. 1;"

- gj Fig. '3 is": avertical section through the bearing whichs upports and shifts the sand reel shaft; andina'yi'be consideredaas taken upon the line of Fighi l Y which the sand reel shirt shifting bearing Referring to the, accompan 1; wherelnf snnllar ,;Fig .4 is a vertical section 1: line l l of Fig; 3,

shown: in; Figs? 3f'and4 vvith-the actuating;

lever'secured thereto;.. 7 1

direction of the arrow 6 upon Fig. 5;! y l Figs? is a top plan view of therboxf'in' is disposed; aiid- Fig. 8 is at top plan View. of the box i whichtheshiftingfbearing for'thesand'reel shaft is disposed, the cap for the box'b'eing,

/ 7 I drawings reference characters des g "10, upon whichrest the sand reel sill 11 and 1'1 and upon the subsill l2f" Upon thee Itisan object of this invention'to provide reference is had toflthe accompanying drawings for an illus- '1 1 is: a side elevation showing a "portion of a well drilling derrick upon-g which is mounted the sand reel 'shaftandj "ken upon the 'F'g. 6 is a view ineleva tion taken in' the" screws 27 nate similar parts throughout, the derrick I is shown as being provided with mud sills miss Wh rl.

A pncat'i nined February 6,4925. Seria11 1'of7,300.

postsvl i lwhich support the band wheel shaft 15 carrying the band wheel 16. The

tug pulley for the bull rope is shown at 17 and the tug pulley for the calf wheel rope is shown at 18. The band Wheel shaft 15 is supported'uponthe sand reel posts 13 and has mounted thereon the sand reel 21 ito swing one end of the sand reel shaft 20 so sa s to bring the friction. pulley 22 into ng ge e t With the periphery of the band wheel.

'is" also provided with a crank 19, upon which may besecured the pitman rod for thewalking bea1n; The sand; reel shaft 20 Heretofore'it has been custornary to pro -vide: a lever pivoted'upouthe subsill12 or adja'cent'the bottom of the sand: reel post 13 and to mount abearing upon the l'everglso "that When the lever is pulled by the sand reel reac'ln' indicated at 23, the sand reel shaftwoifldbeswungzto bring the friction pulley '22 into engagement" withthe band wheel 1 6. This construction: required a 'co11siclerable force to be applied upon the fti n pulley: 22 in good frictional engagernentj'withthe band wheel; e

r r v By-the improvedjconstructiona lever;is

"Fig; 5 1s aL-sidejelevationof the bearing} sand reel reach 23 in'order to keep the fric provided which is attached to the bearing *there isfprov ded ajbox 24, 'whichl 1as "its fbottoiii L'portion 25 resting'upon the topof thesajn'd reel post 13 and "which is provided withu'pwardly extending side walls 26. Lag

the top fofthe Isand'r-eel "post 13 so as to l tough the ssh-e 31 prevent sliiftingof the'b'ox uponthe postj *Upon the-top of jth-e box there isjplaced 'a 02113 28 whichiis preferably ribbed, as indi catedat28,to strengthen thec ap'; The sides p m'ay bei employed which extend through thG bOttOID 25 ofthc b02124 into \Vhenthe sand reel reach 23 ,portion to ol the lever 44.

i reach :23. in the other sand reel post 13 is a slightly 1i? and are provided at their lower ends with nuts ill. Nuts 32 are provided upon the upper ends of the bolts or tie rods 30 and serve to maintain the cap 28 upon the box 24:. and also to maintain the box 24: upon the sand reel post 13. By placing the tie rods 30 within the recesses 29 upon the sides oi, the box, the tie rods assist the lag screws 27 in preventing" shifting of the box upon the sand reel post.

Within the box Qel there is placed a hearing, generally designated at 33 in which the sand reel shaft 20 is rotatable. The bearing 3? is a split bearing consisting of members El-l and 35, the member 34; being uppermost, and the member 35 lJC'lIltI lowermost within the box Reccsses 36 are formed in the upper member 3-1 and cap screws 37 have their heads disposed within the recesses and serve to secure the members 3-l and 35 together about the sand reel shaft 20. The members 3% and 353 may be babbit-ted, as indicated at 38, and may be separated slightly by suitable shims, indicated at 39. The up- .permeniber Ell presents a seen-cylindrical surface having the recesses 36 'lorn'led tl1erein, and in this manner the heads of the cap screws 37 do not project from the eylindrical surface provided by the upper member 23+. The lower member 35 has gear teeth -l0 provided upon its exterior surface, and these gear teeth are adapted to rest upon or mesh with rack teeth all liOllllGCl upon the bottom of the box The cap 28 is separated from the side walls 26 of thebox 2% by means of shims lS, preferably of the same thickness as the shims 39, for a purpose hereinafter to be described.

A lever etl is provided which has an en larged lower end, indicated at 4:5. Stud bolts topass through the lower end of the lever ll and extend into the ends oi the members 34. and 35 comprising the split bearing 33. ilhestud bolts llhwhich pass into the upper member Setof the split bearing, extend through slotted or elongated holes 4;? formed ,in the lever llfor a purpose hereinafter to .bQIlOSCIIlJGd. Aisultable collar 48 181310- vided which is rigidly secured upon the sand reel shaft 20 by a setvscrew l9, and this collar bears against the face of the enlarged A pipe section tidis lapted to be telescope-d over the upper end ofthe lever ist and is pivotally connected, as at 51, to the end of the sand reel A hearing 52 which is provided loose bearing, so that as the sand reel shaft Ellis shifted, it willnot bind upon the end of the sand reel shaft disposed therein.

The operation of the device is as follows: is pulled, it swings the lever at and in this manner causes rotation of the split bearing 33, in which the sand reel shaft 20 is rotatable. Rotation of the split bearing 3?. because of the engagement between the gear teeth 4:0 and the rack teeth 41, causes the bearing to roll or more within the box 34; and thus swings the sand reel shaft 20 so as to bring the friction pulley 22 into engagement with the peripheral surface of? the band wheel 16. In a similar fmanner, it the sand reel reach 23 is pushed, the lever 44- will be swung in the opposite direction, causing rotation of the split bearing 33 in the opposite direction, and eause it to roll toward the opposite side of the box 24, thus bringing the. :t'riction pulley into engagement with the lagging 53. which is mounted upon. the brake post 54-, so that-the pulley 92 will be caused to stop rotation. and thus brakeor stop. the sand reel shaft 80. In this manner a type of travelingfulcrum isprovided for the lever 4-1; and the leverage obtained by the lever is much greater than that which would be obtained it the lever eel were pivoted upon the subsill 12 or adjacent the bottom of the sand wardly within its slot 47, and at the same time the shim 413 is removed so that the cap of the box 24: will be maintained adjacent the top of the upper member 34, it being understood that there is merelyia working clearance between the cylindrical surface provided by the upper member 341: and the lower surlac-eof the cap 28,.so that up and down vibration of the split bearing-53 within the box 2 L prevented. Anvoil hole .15 may be provided in the 0.111128, and another oil hole 56 may :be provided in the upper member Bel of the split bearing 33. Thetop ot' the oil hole 56 is preferably flaredor countersunk, as indicated at 57, so that regardless of whichposition thesplit bearing 83 is in within the box 24;, oil fed through the oilihole 55 will pass into the oil hole 56 and lubricate the bearing 33.

From the above it i s seen that an improved shitting bearingtor the sand reel shaft upon a well :drilling derrick isprovided, which consists essentially of a bearing, in which the sand reel shaft is rotatable, and means for rotating theibearingso as to cause it to A hearing for sand reel shaft-s comprising a hearing in which the shaft is rotatable, gear teeth formed upon one member of said bearing, a box having teeth provided thereon upon which said gear teeth may rest and mesh, a cap for said box for maintalning the teeth upon said bearing in engagement with the teeth on said box, and means for rotating said hearing so as to cause it to move within 7 said. box and thus shift the shaft.

CHARLES F. FERNALD.

Images