US2280910A - Lubricating means - Google Patents

Description

April 28 1942. I I w. H. HAZARD LUBRICATING MEANS 3 Sheets-Sheet l Filed Oct. 30, 1939 April '28, 1942.

w. H. HAZARD 2,280,910

LUBRICATING MEANS Filed 001:. 50, 1939 3 Sheets- Sheet 2 Medan April 28, 1942. w. H. HAZARD 2,280,910

LUBRICATING MEANS Filed Oct. 30, 1939 3 Sheets-Sheet 3 Patented Apr. 28, 1942 LUBRICATING MEANS William Horace Hazard,

to A. Y. McDonald Mf corporation of Iowa Dubuque, Iowa, assignor 00., Dubuque, Iowa, a

Application October 30, 1939, Serial No. 301,873

2 Claims.

My invention relates to means for lubricating an enclosed power mechanism and is particularly adapted for lubricating the power mechanism of a deep Well pump.

Another and further object of my invention is the provision of lubricating means for the moving parts of the power operating means of a pump, which are enclosed in a casing and which, during the operation of the parts, are self-lubricating so that there is no necessity for constant attention to the various parts for. lubricating purposes, the only attention necessary to the pump being the draining of the oil from the case occasionally and the supplying of an additional quantity of oil or supplying new oil to the case.

Another and further object of my invention is the provision of lubricating means which supplies oil to the various lubricating parts of the power operating means in quantities suflicient to secure proper lubrication of the parts, but in limited quantities and in a constant supply so that during the operation of the power mechanism all of the moving parts are properly lubricated and excess wear on the parts is prevented.

These and other objects of my invention will be more fully and better understood by reference to the accompanying drawings, and in which- Figure 1 is a side View, partially in elevation and partially in section, of a deep well pump embodying my invention;

Figure 2 is a transverse sectional view on line 2- 2 of Figure 1;

Figure 3 is an enlarged detail view particularly of the walking beam and associated connections;

Figure 4 is an end view, partially in elevation and partially in section, through the main housing and side plates; and

Figure 5 is a detail view, partially in elevation and partially in section, on line 5-5 of Figure 3.

Referring now specifically to the drawings and in which like reference characters refer to like parts throughout, a deep well pump housing is shown comprising a frame I having a base portion I I adapted to be mounted upon a foundation such as concrete or the like. The frame In has a false bottom wall I2, spaced upward a short distance from the bottom thereof for the purpose of providing an oil sump in the bottom of the housing, with an oil recess I3 at the bottom thereof having a drain plug I4 therein by means of which the lubricant may be drained from the housing, if desired. A pulley side plate I is provided having a flange portion I 6 fitted against one side of the frame I0 and secured thereto in any approved manner, this connection between the plate I5 and the side of the frame I0, particularly at the bottom thereof, being tight so that oil will not leak out of the housing. A side plate I! is provided, having a flange I8 therearound which is fitted against the frame Ii] at the side opposite the side plate I5, and secured thereto in any approved manner as by lag bolts, so that an enclosed housing, consisting of the main frame I 0 and the two side plates I5 and I1,

is formed for the operating parts. The side plate I! has an opening I9 therein, with an oil plug therein, for the purpose of enabling the operator to determine the proper oil level in the housing, the oil being supplied to the housing through an opening in the side plate I! near the top thereof over which a hand plate is fitted in the usual manner.

Mounted on the frame I0 is a motor bracket 2| to which motor rails 22, 22 are secured and upon which an electric motor 23 is mounted. Mounted at the pulley side I5 of the frame is a pulley 24 over which belts M pass from the pulley on the motor 23 to the driving pulley 24. The pulley 24 is mounted upon the outer end of a drive shaft 25 mounted in bearings 26 and 21 positioned in the side plates I5 and I1, respectively. The bearing 28 has a semi-circular head portion 28 thereon extending inward, with a corresponding inwardly extending portion 29 being formed on the bearing 21. The two sections of the bearings 28 and 29 extend over a gear wheel 30 on the drive shaft 25. The bearing 26 has an oil receiving recess 3| formed therein, with the drive shaft 25 having an oil groove 32 extending circumferentially therearound, and an oil groove 33 formed in the bearing 26, by means of which the pulley end of the drive shaft is supplied with lubricant, as will be hereinafter described.

The end of the drive shaft 25 opposite the pulley side has an oil groove 34 formed therein, which extends circumferentially of the drive shaft 25 adjacent the gear wheel 30, with a spiral groove 35 being formed in the outer surface of the shaft and extending to the outer end thereof. The bearing 26 is mounted in a trunnion 36 formed on the pulley side plate I 5, with the bearing 27, carrying the end of the drive shaft opposite the pulley, being mounted in a trunnion 3'! integrally formed with the side plate [7. The trunnion 31 has a recess 38 formed therein at the end of the drive shaft 25, with an upwardly and diagonally extending passage 39 formed in the wall of the plate 11. At the upper side of the passage 39 is an opening 40 Within which a plug 4| is fitted to which a pipe 42 is connected extending inward toward the center of the frame ID.

A shaft 43 is mounted in trunnions 54 and 45 formed, respectively, on the inner sides of the side plates l5 and H. A pair of gear wheels at and 41 is mounted on the shaft 43, the gear wheels having eccentrics 4B and 49 formed on their outer faces to which connecting rods 56 and 5| are connected at their lower ends. At their upper ends the connecting rods 56 and M are connected to a walking beam 52, by means of a wrist pin 53. The walking beam at its rear end is connected by means of a pin 54 to an oscillating member 55 mounted at its lower end upon a shaft 56, the outer ends of which are mounted in trunnions 51 and 58 formed in the side plates l5 and I1, and has an elongated cup portion centrally thereof at its lower end into which lubricant is received and flows outward alonglthe shaft 55.

A pair of compensating links 55-3 and Ed is provided, mounted at their inner ends upon the wrist pin 53 and upon pins 6! and 62 at their outer ends which are fixed in the trunnions formed in the side plates [5 and M, respectively. The links 59 and 60 have oil receiving channels 33 formed therein, with openings leading from the bottoms of these channels to the wrist pin 53 and the pin 6|, respectively, so that oil received into these channels lubricates the bearing portions of the wrist pin 53 and the fixed pin iii on which the outer ends of the compensating links 53 and iii oscillate. The mechanism hereinabove described serves to impart to the outer end of the walking the cyl beam a straight rectilinear movement for purpose of operating a piston in a pumping inder.

The walking beam on the upper side thereof, from its rear end to a point slightly beyond its point of connection to the wrist pin 53 has a trough or ladder Gd formed thereon, the side walls of which increase in height slightly from the rear end towards the center thereof, and which has ribs or partitions 65 and extending transversely of the ladder with the rib being slightly higher than the rib In the form as shown, the trough is divided into three compartments, in one of which the lubricant is received, a portion passes to the bearing for the pin 53, and the balance travels over into the middle compartment. From the middle compartment it moves to the third compartment over the wrist pin if the pump is in operation.

The ladder M has openings in the side walls thereof, into which pipes ti and es are fitted, and which extend outward from the ladder and terminate over the oil receiving channel formed in the links 59 and lit. The walking beam 52, at its outer end, has a member fit mounted thereon, to which a piston rod it is connected which extends into a cylinder ll mounted in a gland 12, which in turn is mounted in a chamber 13 mounted upon and secured to the trance id in any approved manner. The member 89 has an extension arm is thereon to the outer end of which is connected a piston rod 75 a piston head on the lower end mounted in an air cylinder 16. The chamber 73 forms intake chamber for water, which is ordinarily forced into the chamber by a pumping cylinder ounted well below the surface of the ground and connected to the pumping mechanism hereinabove de scribed by the usual pump rod, this mechanism forming no part of my present invention.

In operation of the mechanism in the furnishing of oil or lubricant to the various moving parts of the power mechanism mounted in the frame it], the oil is placed into the housing through the opening Ill in the cover plate ll, and fills the bottom of the housing approximately to the level of the oil opening B9. The oil level, therefore, is above the lowermost edges of the gear wheels 46 and ll, so that as these wheels rotate oil is carried up by these gears until it is brought into contact with the gear wheel 30, thus serving to lubricate the teeth on each of these gear wheels. Some of the oil is thrown out against the cap portions 28 and 29 of the bearings 36 and 31 and passes into the oil grooves 32 and E i, and into the recesses 35 in the bearings 38 and 3'1, respectively. From the recess on the pulley side of the casing the oil flows in the oil groove 33 outward toward the pulley 2t, thereby lubricating the drive shaft operating in the bearing 36 with the excess oil flowing out of the oil groove and down on the inside casing and back into the oil sump in the bottom of the housing.

The oil which has passed out of the gearing at the opposite side from the pulley side of the housing is conveyed through the oil groove 35 out into the chamber 33 formed in the trunnion 3? on the side plate H, and due to the constant operation of the parts the pressure formed on the oil in this chamber forces it upward through the channeltii out through the pipe 52, where it flows into the trough on the ladder 5 at its rear end and just over the pin Ports Tl are drilled in the rear end of the walking beam 52 so that oil passing therethrough lubricates the pin 5% and its bearings in the oscillating member 55. A portion of the oil drips down from the lower end of the port ll onto the pin 53 and into the cup-shaped portion of the oscillating member 55, and flows outward to the ends of the pin into the trunnions 51 and 58, providing lubrication for the operating parts at these particular points.

Due to the movement of the walking beam in its operation, the oil is conveyed throughout the length of the ladder t4, passing first over the rib 55 and thence over the next rib 66 until it reaches the compartment over the wrist pin 53. Oil grooves l8, F8 are drilled through the walking beam, through which oil passes to that portion of the wrist pin forming a bearing with the upper ends of the eccentric arms 50 and 5!, respectively, while other portions of the oil pass outward through each of the pipes 61 and 68 where the oil is deposited in the channels 63 formed in the upper sides of the compensating links 59 and 6B, the inner ends of which reciprocate in a vertical direction while the outer ends are fixed, causing the oil to flow first in one direction and then in another as these links are alternately raised and lowered, thereby lubrieating the outer ends of the wrist pin 53 and the pins 6! and 62 mounted respectively in the trunnions in the side plates l5 and Il. Oil is retained in the middle compartment at all times and immediately upon the beginning of the operation of the pump some oil from this compartment is forced over into the adjacent compartmerit and finds its way into wrist pin bearings and oscillating links before oil reaches these parts from the oil sump.

Excess oil supplied to any of these parts drains back into the oil sump at the bottom of the housing and is circulated again in the manner hereinabove described to all of the working parts of the power operating mechanism. In this way the bearings of every moving part of the ofpf' erating mechanism inside of the housing is kept properly lubricated by having a supply of oil constantly carried thereto.

It is only necessary therefore for the operator to maintain a proper level of oil in the housing in order that all of the parts may be properly lubricated during the operation of the pump.

The oil can be drained from the oil sump by removal of the plug I4, if desired, and new oil added or, of course, new oil can be added through the oil filling opening at any time desired, in order that the oil level be maintained at the proper height to be picked up by the gears 46 and 41.

The connection between the outer end of the walking beam 52 and the member 69 is a specially made bearing which is self-lubricating for the length of the life of the pump, and therefore the pump in operation needs no attention from the operator so far as internal lubrication is concerned, except the maintaining of the proper oil level in the casing.

While I have described more or less precisely the details of construction, I do not wish to be understood as limiting myself thereto, as I contemplate changes in form and the proportion of parts and the substitution of equivalents as circumstances may suggest or render expedient without departing from the spirit or scope of my invention.

I claim:

1. Means for lubricating the power mechanism of a deep well pump comprising a housing having an oil sump therein, shafts in said housing on which intermeshing gears are mounted, one set of gears running through the oil in the oil sump, the housing having an oil passage in one side thereof into which one of said shafts ex- 1 tends, one of said shafts having a spiral groove therearound leading from one of said gear wheels to the end of the shaft through which oil is forced into and through the passage in the housing, a walking beam having an oil trough therein with spaced partitions thereacross whereby oil receiving compartments are formed in said trough, one of said compartments being oil retaining at all times, a discharge pipe leading from the passage in the housing to discharge oil into the walking beam trough, and oil conveying pipes connected to said walking beam, the said walking beam having channels therein whereby oil is conveyed by gravity from compartments other than the oil retaining compartment through said conveying pipes and channels to other parts of the mechanism.

2. Means for lubricating the power mechanism of a deep well pump comprising a housing having an oil sump therein, shafts in said housing on which intermeshing gears are mounted, one set of gears running through the oil in the oil sump, the housing having an oil passage in one side thereof into which one of said shafts extends, one of said shafts having a spiral groove therearound leading from one of said gear wheels to the end of the shaft through which oil is forced into and through the passage in the housing, a walking beam having an oil trough therein extending partially the length thereof on the upper side, with spaced partitions thereacross increasing in height progressively towards one end of said trough whereby oil receiving compartments are formed in said trough one of said compartments being oil retaining at all times, a discharge pipe leading from the passage in the housing to discharge oil into the walking beam trough, the said trough having discharge ports from two other of said compartments, the said walking beam having channels therein whereby oil is conveyed by gravity to other parts of the mechanism.

W LL AM HOR C HA ARD-

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