US2244812A - Well pump operating apparatus - Google Patents

Description

June 10, 1941.

G. w. TAYLOR, SR

WELL PUMP OPERATING APPARATUS 3 Sh'eets-Sheet 1 'FilOd Oct. 4, 1939 INVENTOR. I 'egrqeil/iia ylar, Jr.

BY. 2 ATTORNEYS.

June 10, 1941. G. w. TAYLOR, SR

WELL PUMP OPERATING APPARATUS Filed Oct. 4, 1959 s Sheets-Sheet 2 WWW/4% June 10, 1941. G. w, TAYLOR, sR 2,244,812

WELL PUMP OPERATING APPARATUS I Filed on. 4, 1939 I s Sheets-Sheet s IN VEN TOR. eai'ye Z/T Ykyr, 6r.

BY I ATTORNEY Patented June It), 1941 UNHTED STATES PATENT WELL PUMP OPERATING APPARATUS George W. Taylor, Sn, Cut Bank, Mont.

Application October 4, 1939, Serial No. 297,933

1 Claim. (01. 7441) This invention relates to pumps and more particularly to a well pump for use in deep wells. It is one object of the invention to provide a pump having operating means of such construction that when the pump is installed for use, it

Another object of the invention is to provide a pump operating mechanism having a base which may be easily set in place on the ground about the upper portion of a pump casing and carries a fulcrum support for a walking beam and driving means by which rocking motion is imparted 2 to the walking beam.

Another object of the invention is to provide pump operating mechanism which consists of a comparatively few number of parts and a very strong and durable mechanism not liable to get out of order.

The invention is illustrated in the accompanying drawings, wherein:

Fig. l is a side elevation showing the improved pump operating apparatus installed for use with a single pump.

Fig. 2 is a view taken on the line 2-2 of Fig. 1.

Fig. 3 is a sectional view taken on the line 3-3 of 1, with the walking beam in the positlon indicated by dotted lines.

Fig. 4 is a sectional View taken vertically through. the upper portion of the pump.

Fig. 5 is a side elevation showing the pump operating apparatus installed for use with a double pump.

The well pump operating apparatus illustrated in Figs, 1 through 4, is for use in connection with a single pump having the usual casing I in which operates a pump rod 2 carrying a pumping head or piston 3 by means of which oil, water, or the like, is to be lifted in the casing and forced out through the discharge pipe 5. A removable cap 6 closes the upper end of the pump casing and is provided with a packing gland E to form a tight joint around the pump rod 2 and prevent lealzage during operation of the pump.

In order to reciprocate the pump rod or plunger 2, the operating apparatus constituting the subject matter of this invention is set in place on the ground about the upper portion of the pump casing. This apparatus has a base 8 formed of side beams 9 having their ends secured upon cross beams or bolsters I5 in transverse spaced relation to each other by large bolts'l I, the space between the side beams being of such width that the casing I may xtend upwardly from the ground between the side beams. Arms l 2 extend from opposite sides of the upper end of the casing and are firmly secured on upper faces of the beams by bolts l3. By so securing the pump casing to the side beams of the base, movement of the base out of its proper relation to the pump casing will be prevented.

A fulcrum block l4 extends longitudinally of the base and has feet IE3 at its ends secured upon upper faces of the side beams '9 by bolts l6. Therefore, the fulcrum block will be firmly secured upon the side beams of the base in bridging relation to the same and its upwardly projecting bearing portions ll will be located over the space between the side beams. A shaft or pivot pin I 8 is mounted in the bearing H with its ends engaged through ears 19 depending from side portions of a walking beam 20 preferably consisting of a tube of strong metal although a wooden beam may be employed. Adjacent its rear end, the walking beam is slotted longitudinally, as shown at 2|, to receive a pin 22 by means of which the walking beam is connected with the clevis 23 at the upper end of the pump rod or plunger 22. Referring to Fig. 1, it will be readily seen that by rocking the walking beam upon its fulcrum, as indicated by dotted lines, reciprocating motion in 'a vertical direction will be imparted to the pump rod to operate the pump.

In order to impart rocking motion to the walking beam, there has been provided a crank shaft 2 rotatably mounted in bearings 25 secured upon the upper faces of the side beams 9 of the base by bolts 26. Cranks 21 extend radially from ends of the crank shaft and have their outer ends pivoted to lower ends of the arms 28 of a yoke 29. A hanger bracket 3i extends upwardly from the bridge of the yoke midway the width thereof and has its side arms formed with bearings 3| to receive the pin 32 by means of which the bracket is connected with the portion of the walking beam which passes through the bracket. It will thus be seen that the yoke serves as a pitman and that when the crank shaft is rotated, rocking motion will be imparted to the walking beam and reciprocating motion transmitted to the pump rod. A counterweight 33 which is carried by the forward end portion of the walking beam and secured in adjusted position by a set screw 34, permits easy rocking movement to be imparted to the walking beam.

In order to rotate the crank shaft 24 there has been provided a drive shaft 35 rotatably mounted in bearings 36 carried by the side beams 9 of the frame. This drive shaft carries a large pulley 31 about which is trained a belt 28 leading to a suitable source of power such as a motor carrying a pulley for engagement by the belt. A smaller pulley 39 is carried by the drive shaft between the side beams of the base and engaged by a belt 40 which is also trained about a large pulley 4| carried by the crank shaft between the bearings 25 and operating in the space between the side beams of the base. When the drive shaft is rotated, rotary motion is transmitted from this shaft to the crank shaft at reduced speed and the cranks 21 act upon the yoke or pitman 29 to impart rocking motion to the walking beam and cause the pump rod or plunger 2 to be reciprocated in the casing I.

Fig. 5 illustrates a modified form of pump operating mechanism for use with a pair of pumps which may be referred to as a double pump. In this embodiment of the invention, parts corresponding to those previously described are indicated by the same reference numerals. The two pump casings extend upwardly from the ground between the side beams of the base and their discharge pipes 42 extend toward each other and under the fulcrum block 14 between the supporting legs or feet I 5 thereof for connection with a pipe line 43 by a T-coupling 44. The side beams 9a of the base are longer than the corresponding side beams 9 and the walking beam 28a is also longer than the corresponding walking beam 2d, and has its counterweight mounted on its rear end portion instead of its front end portion. Two sets of slots Zia are formed in the walking beam 202 in proper spaced relation to each other longitudinally of the walking beam to receive the pins for connecting the walking beam with the clevises of the pump rods and since the ears we of the walking beam are located midway the slots 2 la, the rod or plunger of one pump will be moved upwardly while the pump rod or plunger of the other pump is moving downwardly. Of course, valves must be provided in the connections for the discharge pipes 42, so that water or oil forced through these pipes will be directed into the pipe line &3 instead of flowing from one pump to the other when the pumps are in operation. The operation of this form of pump operating apparatus is the same as in the first form described, the crank shaft being rotated from the driving shaft and the yoke or pitman imparting rocking motion to the walking beam so that the pump rods or plungers will be reciprocated vertically and water or oil pumped from the wells and forced through pipes 42 into the pipe line :34.

Having thus described the invention, what is claimed is:

In a pump operating apparatus, a base consisting of a frame having bars spaced transversely from each other for accommodating a pump casing between the bars, a fulcrum mounted on said bars in bridging relation thereto intermediate the length of the frame, a walking beam extending longitudinally of the frame and pivoted intermediate its length to said fulcrum, means for connecting the walking beam with the pump rod of said pump and imparting reciprocating movement to the pump rod during rocking of the Walking beam, a crank shaft rotatably mounted across the bars of said base, an inverted U-shaped yoke over said crank shaft and having an upper bridge and depending arms pivoted at their lower ends to cranks of the crank shaft, a bracket extending upwardly from the bridge of said yoke midway the width thereof, the bracket being closed at its upper end and loosely engaged about said walking beam, a pin pivotally mounting the walking beam between said portions of the bracket, and means for transmitting rotary moticn to said crank shaft.

GEORGE W. TAYLOR, SR.

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