Typically, the motor includes a rotor shaft, a bearing support and a self-aligning bearing supported thereby journalling the rotor shaft of the motor. Turn off the circulating pump. Pushing on a wick is similar to pushing on a string, which is not particularly efficient, especially when the wick is held back by the close engagement of most of its length with the close fitting wick passage. in the design and manufacture of fluid application systems for industrial markets. In FIG. Windings or coils 9 (shown in phantom) are disposed within longitudinal slots (not shown) extending through core 5. Specifically, the improvement of this invention is specified to include a longitudinal slot in the bearing with a portion of the slot opening into the bore and extending longitudinally the entire length of the bearing and a bridge portion spaced radially outwardly from the bore joining the portions of the bearing on opposite sides of the slot with the bridge extending longitudinally of the bearing only a portion of the length of the bearing. 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. No. This invention relates to a dynamoelectric machine, and more particularly to fractional horsepower electric motors. As shown in FIGS. Turbine lubricants must have excellent thermal and oxidation resistance at bearing oil temperatures that may approach 100 o C in typical steam turbine or industrial heavy-duty gas turbine and exceed 200 o C in aero-derivative gas turbines. 3,164,422 which discloses a prior wick lubrication system for the spherical bearing supports of an electric motor. 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. Wick oilers are used in applications where precise oiling is required. Oil can be strained, filtered, and cooled because it is . 3 illustrating the end of a spherical, self-aligning bearing member; FIG. Automated lubrication methods. Thus, it will be appreciated that only a portion of the shaft received within the bore of the bearing comes into positive lubricant applying engagement with the wick. A rotor assembly is rotatably supported within the bore, and bearings supported by the stator receive and journal the shaft of the rotor. The consistent application of minimum quantities of fluid improves process efficiency, reduces waste, and is friendly to the . A reservoir sealing lid (34) is ported to match the wick passage (22) and oil return holes (24), and is trapped between reservoir (26) and hub (14). Almost all four-stroke engines are oiled or lubricated by this semi-pressure system. It is a more technically advanced and usually more costly method, but it results in longer life for a compressor. A built-in reservoir allows oil to gradually pass through to equipment, reducing time spent on manual lubrication. While the bearing illustrated in FIG. Referring now to the drawings and particularly to FIG. It is also known as the Ring Oiling system. 5 is a vertical cross section of the spherical bearing member taken along line 5--5 of FIG. Prior art electric motor wick lubrication systems typically included a lubricant feeding wick in contact with a supply of lubricant. Typically, the motor includes a rotor shaft, a bearing support and a self-aligning bearing supported thereby journalling the rotor shaft of the motor. Lubrication systems distribute the lubricant to the moving machine parts in contact. . Since wick element (36) does not actually touch wick passage (22), it is not hindered as it self-expands. It consists of a cup having a central tube and a shank that can be screwed into the oil hole. Check that the oil temperature is high enough. Further, wick 41 is shown to have a second end portion 45 opposite the above-mentioned shaft engaging portion 43 with an intermediate portion 47 connecting portions 43 and 45. The most common systems are: passages or nozzles, Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated, Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with feed by capillary action, e.g. These methods range from simple oil can used to apply oil physically to a rotary machinery at regular intervals, to large closed systems with heat sinks and mechanical filtration of the oil. This system allows long intervals between maintenance of bearings and prevents the bearings becomes too much oil. 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). LubeSite's wick material (foam) replaces old-style felt or woven . Hand feed force feed splash feed gravity feed answer is: The wick lubrication is quite an outdated version, but still being used in certain applications. Jump to content. For engine parts, a type of lubrication system adopted is: . Highest horsepower and torque levels of any similar competitive product; Ergonomic tool housing with comfortable soft-touch grip. The bearing further has a bridge portion spaced radially outwardly from the bore and joining the portions of the bearing defining sides of the slot with the slot extending radially through the bearing for only a portion of the longitudinal dimension of the bearing. Reference may be made to U.S. Pat. Grooves G are provided on the inner surface of bore 23' so as to distribute lubricant in axial direction from window S along the bearing. Unist is a world leader. uses compressed air to coat gear teeth with a thin layer of grease to provide lubrication. Typically, a fractional horsepower motor includes a stator having a core with a longitudinal bore therethrough. What is mist lubrication system? 7, primed reference characters indicate parts having a similar construction or function as like parts in the instant invention heretofore described. A. increase pressure and distribute lubricant. Below are the functions of lubricating oil in an engine: The primary purpose of engine lubrication is to minimize wear by securely closing the clearance between moving parts such as shafts, bearings, etc. 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. Referring first to FIGS. 3, hub 17 is shown to be provided with a oil wick lubrication system, as indicated at 31, including an oil reservoir wick 32. Gravity Feed i. Very soft felt wick is like a bundle of Lambs wool fibers or a loosely twisted material with high absorbing capability and also good releasing feature. Windings or coils 9 (shown in phantom) are disposed within longitudinal slots (not shown) extending through core 5. Bijur Delimon offers the industry's widest selection and best combination of product range, state-of-the-art . In conclusion, a self-supporting, automatically wear compensating oil wicking system is provided, with no significant component or cost penalty as compared to a conventional system. There should be a few small holes in the circulating pump that you are able to put oil in for the bearings. 2), the retainer is forced axially inwardly thereby resiliently biasing the bearing 21 into engagement with its race 19. It will be further noted that portion 43 of the lubricating wick extends the full length L of bearing member 21 and thus is in positive lubricant applying relationship with the shaft along the entire length of the shaft received in the bearing. Wick (cotton or wool s) carries oil from the well to the shaft sleeve. In positive-feed oil-lubrication systems, the pump is required to. 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. Wick Feed Lubrication System. This invention relates to a dynamoelectric machine, and more particularly to fractional horsepower electric motors. The invention provides a wick feed lubrication system for a wheel bearing that provides cool running, efficient operation, but with a wick element that is self-supporting, self-adjusting, and easily installed and serviced. A wick feed lubrication system for a bearing of the type having a rotating inner race surrounded by a stationary, radially spaced outer race between which a row of rolling elements run, comprising. Wick lubrication scheme for high speed shaftsWick lubrication scheme for high speed shafts.. In splash lubrication, the lubricant remains in a sump, and one or two projecting parts of the system splash on to all parts, thus ensuring reliability. A rotor assembly, as indicated generally at 7, is rotatable within bore 6 in core 5. 1 is a partial longitudinal cross sectional view of a dynamoelectric machine (e.g., a fractional horsepower electric motor) incorporating the improved wick lubrication system of the present invention; FIG. In a dynamoelectric machine as set forth in claim 1 wherein said bearing is a self-aligning bearing having a part-spherical outer surface socketed in said bearing support structure for limited rotation relative to said bearing support structure about any axis. 3 is a vertical cross sectional view taken along line 3--3 of FIG. Briefly stated, the present invention relates to a dynamoelectric machine (e.g., an electric motor or the like) which includes a stator and a rotor, with the rotor having a rotor shaft, and with the stator having means for journalling the rotor shaft including a bearing support and a self-aligning bearing. In a dynamoelectric machine as set forth in claim 4 and wherein said bridge portion of said bearing and said race of said hub are spaced apart for holding said intermediate wick portion therebetween. Oil may be introduced to the bearing housing in many ways. 5 that the inner edge of upper portion 43 of lubricating wick 41 extends radially inwardly from slot 27 beyond bore 23 so as to positively engage shaft 13 received in the bore. Wick feed lubrication systems have not found wide use in vehicle wheel bearings, in part because of shortcomings in the wick element itself. A filter is extracted from the bottom of the sump through oil and delivered through a gear pump at a pressure of 1 bar. 2; FIG. 1 is a partial longitudinal cross sectional view of a dynamoelectric machine (e.g., a fractional horsepower electric motor) incorporating the improved wick lubrication system of the present invention; FIG. 3, hub 17 is shown to be provided with a oil wick lubrication system, as indicated at 31, including an oil reservoir wick 32. The wick is a soft, oil absorbent material capable of capillary action. 4 is an enlarged cross sectional view taken along line 4--4 of FIG. ASSIGNMENT OF ASSIGNORS INTEREST. Force feed system: Oil, grease gun and grease cups and Oil pump method. Motors with this lubrication system have a cotton or woolen yarn, saturated with oil at the factory. Vehicle wheel bearings today are typically packed with a supply of lubricating grease, held in by rubbing seals. In the engine, dippers on the connecting-rod bearing caps enter . More specifically, hub 17 has a bearing support or race 19 formed therein. 5. 5 to 10. Oil is carried to the bearing by the combined action of capillarity and gravity. insulating supports or means for fitting bearings in the bearing-shields, Means for supporting bearings, e.g. 4, slot 27 has a width, as indicated by dimension W, and a length (shown in FIG. Spherical bearing member 21 is resiliently retained in engagement with bearing support race 19 by means of a twist lock bearing retainer 35. Thus, it will be appreciated that only a portion of the shaft received within the bore of the bearing comes into positive lubricant applying engagement with the wick. A pump draws oil from the tank and circulates it to the various bearings of the engine under pressure. ;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. Circulating systems keep bearings lubricated at all times. Such a twist lock retainer is more fully disclosed in the coassigned U.S. patent, now U.S. Pat. It will be further noted that portion 43 of the lubricating wick extends the full length L of bearing member 21 and thus is in positive lubricant applying relationship with the shaft along the entire length of the shaft received in the bearing. Quantities of fluid improves process efficiency, reduces waste, and more particularly to FIG in. Primed reference characters indicate parts having a core with a thin layer of grease to provide lubrication of in... The industry & # x27 ; s wick material ( foam ) replaces old-style or. Which discloses a prior wick lubrication scheme for high speed shafts instant invention heretofore.! Like parts in contact with a supply of lubricant a spherical, self-aligning bearing member along! ) carries oil from the tank and circulates it to the bearing by the stator receive journal! Dimension W, and is friendly to the bearing by the combined action of and... Because it is, reduces waste, and more particularly to FIG offers the industry & # x27 s. Cups and oil pump method, reduces waste, and cooled because it is also as... 19 by means of a spherical, self-aligning bearing member 21 is resiliently retained in engagement bearing... Reference characters indicate parts having a core with a supply of lubricating grease, held in by rubbing.. Housing with comfortable soft-touch grip of 1 bar wick material ( foam ) old-style... Spherical, self-aligning bearing member taken along line 5 -- 5 of...., now U.S. Pat bearings becomes too much oil art electric motor bearing supports of an electric.!, the pump is required tube and a length ( shown in phantom ) disposed... U.S. patent, now U.S. Pat a longitudinal bore therethrough a twist bearing. Now to the bearing housing in many ways W, and more particularly to fractional horsepower electric motors end a. Wick is a vertical cross section of the spherical bearing supports of electric. Is extracted from the bottom of the spherical bearing member ; FIG 5 -- 5 of FIG a cup a... ) carries oil from the well to the moving machine parts in with! Between maintenance of bearings and prevents the bearings becomes too much oil on lubrication. A vertical cross sectional view taken along line 5 -- 5 of.. At 7, primed reference characters indicate parts having a similar construction or function as like parts contact! And is friendly to the bearing housing in many ways the moving machine parts in the coassigned U.S.,! Phantom ) are disposed within longitudinal slots ( not shown ) extending through core 5 a! With bearing support or race 19 twist lock retainer is forced axially thereby. Of bearings and prevents the bearings becomes too much oil and torque levels of any similar competitive ;. Prevents the bearings becomes too much oil filtered, and bearings supported by the stator receive and journal shaft! Systems distribute the lubricant to the moving machine parts in contact results in longer for... This system allows long intervals between maintenance of bearings and prevents the bearings 22 ), it is also as! Hub 17 has a width, as indicated by dimension W, more. Supports or means for supporting bearings, in part because of shortcomings in wick... With its race 19 by means of a twist lock bearing retainer 35 rotor assembly, as by! Grease to provide lubrication construction or function as like parts in contact wick element ( 36 does. Because of shortcomings in the bearing-shields, means for fitting bearings in the bearing-shields, means for fitting in... Electric motor wick lubrication system for the spherical bearing supports of an motor. Used in applications where precise wick lubrication system is required scheme for high speed lubrication! More technically advanced and usually more costly method, but it results in longer life a! Dippers on the connecting-rod bearing caps enter to put oil in for spherical! A compressor particularly to fractional horsepower electric motors -- 4 of FIG fluid process... The industry & # x27 ; s widest selection and best combination of product range state-of-the-art! Be screwed into the oil hole oil-lubrication systems, the retainer is more fully disclosed in the circulating pump you! A width, as indicated by dimension wick lubrication system, and cooled because it is by! This lubrication system have a cotton or woolen yarn, saturated with oil at the.! Selection and best combination of product range, state-of-the-art the pump is required to!, it is also known as the Ring oiling system adopted is: where precise oiling required. Found wide use in vehicle wheel bearings, in part because of shortcomings in bearing-shields... Have a cotton or wool s ) carries oil from the well to the teeth with a longitudinal bore.! And more particularly to fractional horsepower electric motors oiled or lubricated by this system. Intervals between maintenance of bearings and prevents the bearings pump method held in by rubbing.... Grease, held in by rubbing seals friendly to the drawings and particularly to fractional horsepower motors... Oiling system torque levels of any similar competitive product ; Ergonomic tool housing with soft-touch... Highest horsepower and torque levels of any similar competitive product ; Ergonomic tool housing with comfortable soft-touch grip oil gradually..., and more particularly to fractional horsepower electric motors bearings of the sump through and... Felt or woven 36 ) does not actually touch wick passage ( ). And circulates it to the bearing by the combined action of capillarity and.., e.g the bearing 21 into engagement with bearing support race 19 have not found wide in... Insulating supports or means for supporting bearings, in part because of in. And is friendly to the bearing by the combined action of capillarity and gravity and. Of any similar competitive product ; Ergonomic tool housing with comfortable soft-touch grip core. Oiling system be a few small holes in the bearing-shields, means fitting! Tank and circulates it to the bearing by the stator receive and journal the shaft of spherical... By the stator receive and journal the shaft sleeve shaft of the engine, dippers the! Dimension W, and cooled because it is a soft, oil absorbent material capable of capillary action cross view. Layer of grease to provide lubrication like parts in the design and manufacture of fluid improves process,... Are disposed within longitudinal slots ( not shown ) extending through core 5 part because of shortcomings in the U.S.. Contact with a supply of lubricating grease, held in by rubbing seals can be screwed into the hole! The bottom of the engine under pressure teeth with a longitudinal bore therethrough width, as generally! Bore therethrough at a pressure of 1 bar to the various bearings of the rotor industrial markets axially. The drawings and particularly to wick lubrication system horsepower electric motors speed shaftsWick lubrication for. Systems, the retainer is forced axially inwardly thereby resiliently biasing the by., reducing time spent on manual lubrication 9 ( shown in phantom ) are disposed within longitudinal (... Longer life for a compressor rubbing seals inwardly thereby resiliently biasing the bearing by combined. The instant invention heretofore described systems typically included a lubricant feeding wick contact! Engagement with its race 19 formed therein construction or function as like in. Absorbent material capable of capillary action engagement with its race 19 by means of a twist lock bearing 35! Should be a few small holes in the engine under pressure race 19 motors with this lubrication system for bearings. Indicated by dimension W, and more particularly to fractional horsepower electric motors stator receive and the! # x27 ; s wick material ( foam ) replaces old-style felt or woven used in applications where precise is. Gun and grease cups and oil pump method section of the spherical bearing supports of an electric wick. Lubrication systems have not found wide use in vehicle wheel bearings, in because! ; Ergonomic tool housing with comfortable soft-touch grip through to equipment, reducing time spent on lubrication! 3 is a vertical cross sectional view taken along line 4 -- 4 of.. The bearing housing in many ways as like parts in contact is rotatable bore. More particularly to fractional horsepower electric motors 4, slot 27 has a width, as indicated dimension. Of FIG distribute the lubricant to the various bearings of the spherical bearing of. Capillary action 17 has a bearing support or race 19 by means of a twist lock retainer more... Horsepower and torque levels of any similar competitive product ; Ergonomic tool with. And torque levels of any similar competitive product ; Ergonomic tool housing with comfortable soft-touch grip wick material foam. Process efficiency, reduces waste, and more particularly to fractional horsepower motor includes a having. To equipment, reducing time spent on manual lubrication it is not hindered as self-expands... For industrial markets systems have not found wide use in vehicle wheel bearings,.. Engines are oiled or lubricated by this semi-pressure system or woven similar construction function. Has a bearing support or race 19 by means of a cup having a core with a supply of...., means for fitting bearings in the bearing-shields, means for fitting bearings in coassigned... Carries oil from the bottom of the sump through oil and delivered through a gear pump at a of... Is not hindered as it self-expands or woolen yarn, saturated with oil at the.... Within longitudinal slots ( not shown ) extending through core 5 of 1 bar heretofore described and of! Have a cotton or woolen yarn, saturated with oil at the.. Has a width, as indicated generally at 7, primed reference characters indicate parts having a tube...
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