wick lubrication system
Shaft 13 is journalled in a spherical or self-aligning bearing member 21 which in turn is socketed in bearing support race 19. Should the inner end (40) wear over time, the compressed spring (42) and wick element (36) can expand to take up the slack, maintaining snug engagement automatically and passively. Lubrication (Oil) System $ 0.56 - $ 328.16. A so-called bridge portion 29 extends between the side walls of the slot 27 with the inner face of the bridge portion being located radially outwardly from bore 23. As the screws (32) are tightened, the wick element ends (40) will eventually hit the spindle (10) and the reservoir bottom wall (28), because L is slightly greater than D. The entire wick element (36) and spring (42) will be somewhat compressed from their free state when fully installed, as shown in FIG. 4 and 5, self-aligning bearing member 21 includes a central bore 23 extending longitudinally (or axially) therethrough and the bearing member has a part-spherical outer surface 25 which is socketed in race 19 so as to permit limited angular movement about any axis relative to race 19 thereby allowing the bearing to shift with respect to the end shield so that shaft 13 is aligned properly. . Oil is carried to the bearing by the combined action of capillarity and gravity. As shown in FIG. ;ASSIGNOR:LEDERMAN, FREDERICK E.;REEL/FRAME:006174/0385, PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362, Linear guiding device with rail race lubricating elements, Grooved hydrodynamic bearing arrangement including a porous lubricant reservoir, Improvement in self-acting lubricator for axle-boxes. 3, substantially and not capable of remaining straight. 2 and 3, retainer member 35 is comprised of a generally square-shaped member of sheet spring steel or the like having a central opening therethrough with a socket shoulder 37 defining the central opening therethrough and with the socket shoulder bearing on the outer part spherical surface 25 of bearing member 21. To support the soft wick, most of its length is fed through a close fitting passage that opens from the reservoir through the stationary bearing race. A wick lubrication system for a self-aligning bearing in an electric motor or the like is disclosed. 7, primed reference characters indicate parts having a similar construction or function as like parts in the instant invention heretofore described. In a dynamoelectric machine having a stator, and a rotor, the latter having a rotor shaft, said stator including means for journalling said rotor shaft including a bearing support and a bearing for receiving said shaft and journalling said shaft with respect to said bearing support, said bearing having an outer surface engageable with said bearing support and an inner bore for reception of said shaft, said bearing support including a reservoir wick for holding a supply of lubricant, wherein the improvement comprises: a slot in said bearing, a first portion of said slot opening into said bore and extending longitudinally the length of said bearing, said bearing further having a bridge spaced radially outwardly from said bore joining the portions of said bearing on opposite sides of said slot, said bridge extending longitudinally of said bearing only a portion of the longitudinal dimension of said bearing with another portion of said slot extending radially through the bearing from said bore to said outer surface thereof, and a lubricant applying wick received within said slot, said lubricant applying wick having a first portion thereof disposed in said first portion of said slot, said first wick portion extending longitudinally from one end of said bearing to the other and being in lubricant applying engagement with the entire length of said shaft received within said bearing bore, said lubricant applying wick further having a second portion disposed within said other portion of said slot and extending generally radially outwardly from said first portion, said lubricant applying wick being held captive between said bearing support and said bridge of said bearing, said lubricant applying wick being in lubricant transfer relation with said lubricant reservoir wick whereby lubricant from said lubricant reservoir wick is transferred to said lubricant applying wick for the continuous application of lubricant to the entire length of said shaft received within said bearing. The choice of oil lubricant for recirculating linear bearings is based primarily on viscosity. The bottom of hub (14) is also flattened off to allow attachment of a cup shaped reservoir, indicated generally at (26), which has a flat bottom wall (28) spaced from the surface of spindle (10) by a predetermined distance D. Reservoir (26) is filled with a supply of liquid, wickable lubricant, here oil (30), and is removably attached by screws (32). Typically, the motor includes a rotor shaft, a bearing support and a self-aligning bearing supported thereby journalling the rotor shaft of the motor. . The wick element is slightly longer than the distance from the inner race to a bottom wall of a the reservoir, and its center section fits through the wick passage freely, with clearance. Specifically, bearing member 21' is shown to have a bore 23' with a slot or window S extending radially through the bearing member. Spring (42) is pushed over one enlarged end (40) until it completely surrounds center section (38). As the elevator operates, the hoist ropes are cleaned. b) Wet sump lubrication system. Among the several objects and features of the present invention may be noted the provision of a wick-feed lubrication system for a dynamoelectric machine (e.g., a fractional horsepower motor) which supplies adequate lubricant to the shaft throughout the entire length of the shaft journalled within the bearing without the necessity of grooving either the shaft or the bearing; The provision of such a lubrication system in which both the radial and thrust bearing surface of an electric motor bearing are adequately lubricated by a single feeding wick; The provision of such a lubrication system in which the feeding wick is positively secured in place in lubricant applying contact with the shaft; and. in the design and manufacture of fluid application systems for industrial markets. When installed, the wick element and supporting spring are . Gravity Feed i. 3. Wick Oilers: Wick Oilers use a wick made of loose-textured, long-fiber wool to supply oil to the bearing via capillary action. The lubricant applying wick further is in lubricant transfer relation with the lubricant reservoir wick whereby lubricant from the reservoir wick is transferred to the lubricant applying wick for the continuous application of lubricant to the entire length of the shaft received within the bore of the bearing. A notch 49 is provided between portion 43 and intermediate portion 47 so as to receive bridge portion 29 of bearing member 21 as shown in FIG. As a consequence, it is soft, with little internal rigidity. Wick Lubrication System: The wick lubrication is quite an outdated version, but still being used in certain applications. Oil may be introduced to the bearing housing in many ways. The product of n (shaft rpm), dm (shaft diameter), and b f (an adjustment factor that depends on bearing style) is found on the x-axis.The user will have to find the appropriate b f factor from vendor literature . 2; FIG. Specifically, the bearing has a part-spherical outer surface which is socketed in the bearing . Engine influence the efficiency of the choice of the lubricant. For example, a T-shaped wick (not shown) may be used in which the head of the T corresponds to wick portion 43 in lubricant applying relation with the shaft and in which the stem of the T is held captive by bridge 29 and is lubricant transfer relation with reservoir wick 32. As shown in FIG. Windings or coils 9 (shown in phantom) are disposed within longitudinal slots (not shown) extending through core 5. C. meter lubricant. 2. 5. The oil pressure ranges from 100 to 250 psi. In Oil circulatory systems, the oil is continuously supplied to various moving parts and bearings. Zhongshan Broad-Ocean Motor Manufacture Co., Ltd. Zhongshan Broad-Ocean Motor Manufacturing Co., Ltd. EMERSON ELECTRIC CO., 8100 WEST FLORISSANT AVE., S, ASSIGNMENT OF ASSIGNORS INTEREST. 2. 3 is a vertical cross sectional view taken along line 3--3 of FIG. While wick 41 was herein disclosed as being a Z-shaped wick (as shown in FIG. The lubricant applying wick further has a second portion extending generally radially outwardly from the first portion, this second portion being held captive between the bearing support structure and the bridge portion of the bearing. 5 illustrating a typical prior art self-aligning bearing having a prior art lubricant applying wick installed therein. EMERSON ELECTRIC CO., 8100 WEST FLORISSANT AVE., S, Free format text: . Dual wick lubrication system saturated with gear oil for extended gear life over 700 hours. Prior art electric motor wick lubrication systems typically included a lubricant feeding wick in contact with a supply of lubricant. Specifically, the inner faces of lugs or ramps 39 are inclined so that upon turning retainer 35 in clockwise direction (as shown in FIG. 7 is a sleeve bearing rather than a spherical bearing, it illustrates a long standing problem with both prior art sleeve and spherical bearing lubrication systems (i.e., transferring lubricant in axial direction along the portion of the bearing received in the bore of the bearing). 2 is a sectional view taken along the line 2--2 of FIG. As reservoir (26) is moved into position, the subassembly (44) moves through wick passage (22) freely, because the center section (38) is narrower. Conventionally, these bearings were either sleeve or spherical self-aligning bearings having a bore therethrough for receiving or journalling the rotor shaft. insulating supports or means for fitting bearings in the bearing-shields using sliding-contact or spherical cap bearings radially supporting the rotary shaft at both ends of the rotor. No. 5 is a vertical cross section of the spherical bearing member taken along line 5--5 of FIG. Reference may be made to U.S. Pat. Oil selection is normally made to satisfy lubrication requirements of the most demanding machine elements. . d) centralized lubrication system. Typically, a fractional horsepower motor includes a stator having a core with a longitudinal bore therethrough. As shown in FIG. This invention relates to bearing lubrication in general, and specifically to a wick feed oil lubrication system with special provision for maintaining the efficient operation of the wick element. This invention relates to a dynamoelectric machine, and more particularly to fractional horsepower electric motors. While the bearing illustrated in FIG. This system allows long intervals between maintenance of bearings and prevents the bearings becomes too much oil. Oil can be introduced to the bearing in many ways, such as drip-feed, wick-feed, pressurized circulating systems, oil bath or air-oil mist. In the engine, dippers on the connecting-rod bearing caps enter . 4,219,245. Unist is a world leader. The contact of the balls (18) with the races (10) and (14) is actually nearly a line contact, and, if even a light film of oil can be continuously and efficiently supplied to the balls (18), it will be sufficient, as well as cooler running. Corresponding reference characters indicate corresponding parts throughout the several view of the drawings. Of course, such journal bearings require lubrication to reduce friction, wear, and heating. 3 shows the wick element and spring prior to assembly; FIG. To provide rigidity, a compression spring is provided which fits over and closely surrounds the center section, compressed between and pushing out on the enlarged ends. It consists of a cup having a central tube and a shank that can be screwed into the oil hole. ASSIGNMENT OF ASSIGNORS INTEREST. Ring lubrication system is generally used for lubrication of: A. Vertical bearings: B. Horizontal bearings: C. Inclined bearings: D. None of these These methods range from a simple oil can, used to physically apply oil to rotating machinery at predetermined intervals, to large, complex, closed systems with heat sinks and mechanical filtration of the oil. 7 and 2, the subassembly (44) is dropped through lid (34) and into the oil (30) before reservoir (26) is attached. 4 and 5, self-aligning bearing member 21 includes a central bore 23 extending longitudinally (or axially) therethrough and the bearing member has a part-spherical outer surface 25 which is socketed in race 19 so as to permit limited angular movement about any axis relative to race 19 thereby allowing the bearing to shift with respect to the end shield so that shaft 13 is aligned properly. Referring now to the drawings and particularly to FIG. 1 illustrating the hub of the end shield of the electric motor and a bearing assembly for journalling the shaft of the motor; FIG. The lubricant applying wick further has a second portion extending generally radially outwardly from the first portion, this second portion being held captive between the bearing support structure and the bridge portion of the bearing. 3 illustrating the end of a spherical, self-aligning bearing member; FIG. This grease type, see Fig. However, in certain motor designs, and particularly in motor designs utilizing spherical or self-aligning bearings, even grooved bearings or shaft did not always insure that an adequate supply of lubricant would be provided so as to maintain an adequate oil wedge between the bearing and the shaft so as to minimize wear and heating of the journal bearing. Screw actuator comprising a multi-purpose sleeve, and brake calliper, Subassembly cartridge for sealing and adjusting bearing assemblies, Bearing case for a multiple-row antifriction bearing, Clutch-release bearing with vibration damper, Bearing with lubricating ring for providing supplemental lubrication, CENTRIFUGAL Separator with SMORD DIMMING DEVICE, Lubricated bearing for supporting a pulley and blower vanes, Planet roller type power transmission device, Device for supplying an oil-air mixture to bearing locations, Lapse for failure to pay maintenance fees, Information on status: patent discontinuation, Expired due to failure to pay maintenance fee. 6 is a side elevational view of the lubricant applying wick; and. Mist lubrication system is that, in which the lubrication of a bearing is done by the oil in the form of oil mist. Other objects and features of this invention will be in part apparent and in part pointed out hereinafter. a) drop feed lubricator system. To work properly, the inner end of the wick has to be kept in rubbing . 6). As various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense. The oil is thrown upward as droplets or fine mist and provides adequate lubrication to valve mechanisms, piston pins, cylinder walls, and piston rings. I had a problem with the lube system one and dribbled a 50/50 mix of diesel and bar oil on the saw every couple of cuts to quiet the . A wick passage is cut through the outer race, opening both to the reservoir and between the ball rows, bordered by two oil return holes. Wick Lubricator iii. Turbine lubrication: Practical guidelines. In positive-feed oil-lubrication systems, the pump is required to. The reservoir wick is shown to surround shaft 13 and to be disposed within hub 17 on the inboard face of bearing race 19. Safety-lock throttle lever prevents . Further in accordance with this invention, it will be noted that lubricant is also applied to the outer face of bearing member by excess lubricant from wick 41 thereby to insure the interface between part-spherical surface 25 of bearing member 21 and race 19 is adequately lubricated. Bijur Delimon offers the industry's widest selection and best combination of product range, state-of-the-art . A coil spring (42) has an uncompressed length S that is just slightly greater than C, and a diameter close to the width of wick element center section (38). 7 is a view similar to FIG. B. meter and distribute lubricant. Owner name: 2; FIG. Check that the oil temperature is high enough. The aim of the gravity system, as of all lubrication systems, is to provide a reliable means of supplying the bearing surfaces with the proper amount of lubricating oil. Frequent lubrication helps prevent premature gear failure and helps . Working of Pressure Lubrication System: In this system, Oil is taken from the wet sump through the strainer by the pump and delivers it at a pressure of 200 to 400 Kpa to the main oil gallery. As best shown in FIG. The oil pressure is maintained by means of a pressure-relief valve which is situated in the filter unit/pump housing. 7, a typical prior art wick lubrication system for a rigid steel-backed babbit sleeve bearing member 21' is illustrated. Heretofore in electric motors, the journal bearings were typically lubricated by wick-feed lubrication systems which supplied liquid lubricant so as to maintain a film of lubricant (referred to as an oil wedge) of sufficient thickness between the bearing and the shaft so as to prevent metal-to-metal contact between the shaft and the bearing and so as to result in a low friction bearing. Consistency class, as defined by the National Lubricating . An oil filled reservoir is removably attached to the underside of the stationary outer race. Siphon: This has a greater volume of liquid in the long leg than it has in the short leg. The rolling bearing elements, typically balls, run through the grease pack as the bearing rotates. As shown in FIG. The oil reservoir wick is held in place in the hub and is enclosed by means of a closure cap 33 press fitted into the inner bore of hub 17. The recommended minimum temperature is typically at least 120F. 2 is a left end view of the electric motor shown in FIG. It will be specifically noted that this slot is only a fraction of the length of bore 23' and it receives a wick applying member 41'. The one shown in Fig. These lubrication systems can dispense lubricants to 100 points of lubrication. In the splash lubricating system (fig. In this manner, it will be understood that lubricant applying wick 41 is held captive within bearing member 21 by means of bridge 29 and by retainer 35. uses compressed air to coat gear teeth with a thin layer of grease to provide lubrication. Motors with this lubrication system have a cotton or woolen yarn, saturated with oil at the factory. Owner name: Is that okay or should I use some special sewing oil wic. A dumb bell-shaped felt piece with a narrower center section and enlarged ends is surrounded by a closely fitting, compressed coil spring that gives rigidity to the felt piece, and which keeps the enlarged ends spread apart . 5. Furthermore, "sealed for life" also means that the lubricant can't be changed. For non-wick type lubrication systems, use Dynabrade's Gear Grease ; KEEP THINGS RUNNING SMOOTHLY: Apply gear oil to your tools after every 8 hours of use. 7-66. If the design capacity is more than 125% of rated capacity, then care should be taken that the . Two axially spaced rows of bearing balls run between the races. Further, a lubricant applying wick is received within this slot, the lubricant applying wick having a first portion thereof disposed in the portion of the slot extending longitudinally from one end of the bearing to the other with this last said portion of the lubricant applying wick being in lubricant applying engagement with the shaft received within the bore. The consistent application of minimum quantities of fluid improves process efficiency, reduces waste, and is friendly to the . Country of Origin USA (subject to change) Product Description. A filter is extracted from the bottom of the sump through oil and delivered through a gear pump at a pressure of 1 bar. Both the purchaser and manufacturer shall jointly decide the capacity of oil mist generator. 6-29), oil is splashed up from the oil pan or oil trays in the lower part of the crankcase. Rotor assembly 7 further includes a rotor body 11 which is mounted on and which is rotatable with a rotor shaft 13 which extends endwise from at least one end of the rotor body. 3, hub 17 is shown to be provided with a oil wick lubrication system, as indicated at 31, including an oil reservoir wick 32. 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