Патент USA US2131441код для вставки
Sept. 27,/1938. _ o. vH.„.|UNG ET A1.- _ 2,131,441 OILER Filed June 6, 1935 côà/womM/vs/ [Iscar H-Jung 'd 'ma F'- E-.HEff Elfìn :LEP .W Patented Sept.v 27, 1938 - linger, Milwaukee; .Wist ' , Applicate@ .lunga isstgjsepialLNo.. 25,2625 " “ Íï‘frGiaim: (clsßisiigsär This invention. appertiains . to:> oilers, . and.. more. particularly to a. novel lubricatingdeyice fon'the. Y v . . ' _. ' ’ electric motors voffthefabove character, ,which will- bedurable and eiîicient.iniuse,»one~that >will be bearings of. the shafts oielectricmotora andthe.: simple. like. andleasy` to. manufacture, andeneiwhich. 5. Considerable difficulty is. encountered inthe use of oilbearings ofI the. type'commonly` ern:-y ployed` onv electric motors, possibly> dueqto- theA smallquantity ofv oill contained therein, andthe lo, fact that the amount of -oil .inthe bearings cannot` i be seen by an observer... k.Consequentlägq these. canlbe placed upon..the market andfincorporated withlanfelectric motor. ata small cost. Y 5: I With these and otherobjects in View., the inven tion; consists in: the novel construction, arrange ment„and.formation„of parts, as will be. herein-V . after- more specifically described. claimed, and f. bearings frequently run..dry,. causing the. ruina illustrated inthe acoo panying.drawingjnwhich 10( tion ofthe motor.. The bearings whenñlledwith Figure lisasidefelevation .of an electric motor cil also. tend tofeed the. oil;too,fast,-.resulting.in-drawing: ' » l c ’ . ' showing-.our- improvedlubricating device associ-v 15.,waste. * ' _ _ „ _ ` v It is therefore. one of._the¿pr1mary» objects» of; our invention toprovide an oilingìdevice, embody-` ing reservoirs .whichwill- hold a-.-relatively,~-large quantity of oil, so thatthe bearingsv willebe prope 20 erly lubricated-over aigreat‘:lengthoiv time,..and. in which the amount-off oil .in.~.the reservoirs can, be readily seenfat: all jti_1nes»...»_ c Another salient. object» of our inventionY is.- the provision'of novel means ,forîffeeding the.-oil~:to. 25 the bearings, in direct' accordanceïwiththeneed of the bearinggandtheamount of use of the mo tor x and» for, withdraw-ing;v surplus oil from the bearings back into the reservoir, whereby all waste of'oil is eliminated. 30 A further object of our invention is the provi sion of a lubricator of the thermo capillary type, so constructed and arranged that the oil will be supplied according to the heat of the bearing and the amount of oil contained in the bearing. ` A further object of our invention isthe provi sion of a lubricating device embodying an oil reservoir formed from glass, or otherrtransparent material, having a gooseneck for connection with the usual bearing of a shaft, a Wick being em ployed for feeding the oil from the reservoir to 40 the bearing by capillary attraction. ' A further important object of our invention is the provision of means for arranging the o-il res ervoir adjacent to the bearing of the shaft, where by the heat from the bearing and motor will be 5 transmitted to the reservoir for maintaining the atedtherewith., ` l e . ` Figure 2~-is atop planview. ofan electric motor, 15' showing-the improvedtlubricating@device asso'ciat- ' Figure 3l is -an.Y enlarged detaiLvertical.- section looking taken‘substantially inthe'directionlof onf the line. Ythe 3-r3v-of. arrows, Figure illustrat.-1,» ingthe association. of. the gooseneckwith Tthe -con ventional .» bearing: of. a inotor. . lfteferring.> tol the drawing in Y. detaiL. whereinl similar reference> characters designate corre- à „ spending» partssthroughout the several views, .the ¿o letten M=generally¢indicates afmotor, and L.¿our` improved lubricating device therefor. The motor M has merely been illustrated to show one use of our improved lubricator, and it is to be understood that the lubricator can be 3o employed with various types of bearings and mo. tors. As shown, the motor M includes the rotat able armature shaft 5 suitably supported inv bear ings 6 carried by the easing ‘I of the motor. The bearings 6 are provided with suitable oil ports 8, 35 through which the oil is introduced. l Our improved lubricating device comprises an oil reservoir I0 for each bearing, and these reser voirs are preferably formed from glass, or other transparent material, so that the amount of oil 40 contained therein can be readily seen, but it is to be understood the reservoir can be made from any desired material, such as metal. As shown, the reservoir can be in the nature'ofV bottles,=if oil in a free flowing fluid condition. so preferred, and the same are provided with 45 provision of an adjustable bracket for receiving two or more of the improved reservoirs, whereby parison to the conventional motor bearings 6. A still further object of our invention is the Y threaded necks I I. Obviously, the reservoirs I0 50 the reservoirs can be applied as a unit to the bear ings of a motor, and whereby displacement of the reservoirs relative to one another will be pre vented. A still further object of our invention is to pro 55 vide a thermo capillary lubricating device for contain a relatively large quantity of oil in com ~ The necks II of the reservoirs I I) are closed by threaded caps I2, and a gasket I3 is preferably 50 interposed between the caps and the necks to form an air-tight seal. While We have shown the caps I2 threaded'on the reservoir, it is to be understood that the caps can be secured in place in any desired way, and in fact the closures can 55 ~ 2,131,441 2 Vbe permanently secured in place at the time of filling of the reservoir. The axial centers of the caps rigidly support a conductor tube I4 of a substantially inverted U shape to form a goose neck. The depending free ends of the tubes I4 are inserted within the oil ports 8 of the bearing 6, as clearly shown in Figure 3 of the drawing. ’ A wick I5 is inserted in each tube, and is of sufficient length to extend into the bottoms of 10 the oil reservoir I_û. Obviously, according to the illustrated form of our invention, the reservoirs I0 can be readily filled with oil by merely'remov ing the tubes from the bearings, and unthreading. ~ the caps I2 from the necks of the reservoirs. The , flow of oil is controlled by restricting the bore of the tube I4 with more or less strands of- wicking. We prefer to rigidly connect the oil reservoirs by the bearing and motor maintains the oil in . the reservoirs in a free iìowing> condition, in View of the close proximity of the reservoirs to the bearing and motor. n Thus, when the motor is in use, and the bearings and motor heat up, a greater quantity of oil will be supplied to the bearings. , . It is to be noted that syphon action takes place, when the air and the oil in the bottle have cooled. The'fsyphon action then operates to draw the sur plus oil Vin -the 'wick andbearing back into the reservoir, -due to the decrease in the pressure within the bottle. A _With enough strands in the tube, the oiler can vbe placed in the oil hole 8 vertically. But with 15 this arrangement oil cannot be drawn back into the bottle if there is a surplus' of oil in the well. I0 together so that the oil reservoirs for one 'motor- bearing `We' areen bled to control the size of the drops can be handled as a unit, and so that displacement -of oil f_ed into the bearing by varying the interior 20 of the reservoirs relative to one anothernwillbe diameter of the tube I4. Thus, the larger the prevented. To connect the reservoirs IU together, we may employ an adjustable -bracket I6. This bracket I6 is of a substantially U shape 4in plan, therein, and consequently the drop of oil will be directed legs I9, and theoverlapping arms 2B, larger ythanv that of a tube with a very small 25 bore. From the Aforegoingdescription, it can be seen which are adjustably connected together in any preferred manner, such as by a bowed resilient metal loop 2I. The overlapping arms are slid amountì‘of oil to a bearing in direct accordance 30 and includes independent like companion sections rI’I and I8. The sections’include the inwardly - bore of the tube," the more wicking can be placed the slots in the resilient loop, and the 30 through resiliency of the loop frictionally holds the arms together in any preferred adjusted position. The forward ends of the legs ISI carry resilient> jaws 22 for gripping and holding the oil reservoirs IIJ.r By having the sections I‘I and I8 adjustably con 35 nected together, the oil reservoirs I0 can be con nected with motors of different sizes. It is also proposed to make the brackets I6 off‘ductile’ma terial so that the metal can be readily bent to to the conñgu'ration of thernotor, and1 È,-conform to extend around obstructions onthe motor. v We have found that the lubricating device con structed in accordance with our invention will effectively feed the oil in proper quantities, and at lthe proper time, without any waste of oil. The wick feedsthe oil ‘in accordance with the dryness of the bearing, and the heat generated that wefh‘ave provided a Vthermocapillary lubri-A cating device of exceptionally simple and durable form, which will effectively supply the desired with the needof a bearing. Changes in details may be made without de partingfrom the spiritor the scopeof our inven tion, but What we claim as new is: ' A thermo capillary lubricator device for bear 35 ings comprising a pair -of oil reservoirs, caps de tachably associated 'with said reservoirs, conduc tor 'tube'sf'carried by the reservoirs, oil feeding wicks‘ extendingthrough the tubes and into the reservoirs, and an adjustable bracket connecting 40 said reservoirs together including a pair of like companion sections having a pair o_f inwardly di rected legs, anda pair of overlapping arms, means adjustably connecting said arms together, and clamps on said legs receiving the reservoirs. > 1 OSCAR H. JUNG. PAUL E. HEFFELFINGER. '