Патент USA US2408900код для вставки
@CL 8,- E946. ` I > ' |-'|,'F_ WRIGHT 2,408,899 TAKE-UP RoR ROLLER BEARINGS Filed March 5, 1945 2 Sheets-Sheet l / f;„ Á? E GM@ ß œ \ W E ,- le O J _ /6 19 WJ \ @j ¿nä a@ Ä LA/7 F'zegj 6 / ZZ .A9 22 ' _ _ @03 30 > _ M_ Fé? . ßnventor @attorney Oct. 8,' 3946. 2,408,899 H. F. WRIGHT TAKE-UP FOR ROLLER BEARINGS Filed March 5, 1945 ' rwentor Ham Wggìzzf 4 Bu www@ agg/@ß ' (Ittornegs 2,408,899 Patented Oct. 8, 1946 UNITED STATES' PATIENT orf/FICE? » TAKE-AUP- FBR" ROLLER BEARINGS HalF. Wright, Lisbon, Ohio, assignonto .Chester Manufacturingßompany, Lisbon, Ohio, a firm composed 'of Hal F. Wright and MaryT. Wright ApplicationMarch 5, 1945, >Serial No. 581,124 4,Cla»ims. (Cl. 308-208) „1. The invention rela-tes to Amea-ns for takingwup 2 Figure 1 isla side elevation of ¿thefloadLsprocket play in tapered roller [bearings and is .adapted of a chain hoist; for use in pulleys, wheels, sprockets or other ro tatable 'members mounted upon an >axle or shaft therethrough showing the improved roller‘bearîng with tapered roller bearings interposed therebe take-up as applied to the roller ,bearings .of a single sprocket wheel; tween. _ Thelobject of lthe invention is to provide means whereby the axle or shaft .may be- adjusted lon gitudinally to take up play in the rol-ler bearings without any change in relative positions tof parts of the frame or other support in which the rotat a-ble members are mounted. Another object is to providev a roller vbearing take-up of this character -in which the sprocket or other rotatable member is provided with an internal annular rib againstA which the ends of the roller bearing cups abut. A further object of the invention is the provi sion of such a roller bearing take-'up _in which the aXle or shait is providedatone end with a head fitting within _a correspondinglyshaped opening in the frame or supporting member so that the'axle or shaft may be> adjusted longi . Fig. 2 a vertical, transverse »sectional :View . Fig. 3 »a fragmentary 4verticalitransverseçsec the tional >improved view through roller bearing adual sprocketprovided take-anp, andA Fig. 4 a side elevation of a iormof :chain fhoist to‘which the invention may be applied. Although the .invention may "be applied to.y any mechanism in which a wheel; pulley,v sprocket .sor other rotatable member is rjournalled upon 4a. shaft or axle by means of tapered roller bearingsyfor 'the purpose of illustration the improVed'take-up is ishown as. applied to the sprockets'in'afchain hoist. In Fig. 4 is shown one type of vchain 'hoist' to which the invention is applicable and which oom prises the upper yoke iD' having -the hook vIl for suspending the hoist from a stationaryor mov able support, the upper sprocket l2 and' the hand wheel I3 being journalled upon: said yoke. tudinally within the frame or supporting mem The .usual hand chain I4 is yshown associated 25 ber without moving'any part thereof. with the hand ‘wheel i3 and the usual load car A still further obj ect is to provide a roller bear rying chain l5 is shown associated with the upper ing take-up Vof this character in'which spaced sprocket l2, and the load sprocket "I6, which-is rollerbearing cones are -mounted upon the axle mounted in the frame I1 inthe Alowerfend of or shaft, one cone Yabutting against the frame which is swiveled the load'carryingfhook IB. or supporting member and the other cone abut The sprocket I6 is rotatably mounted upon‘the ting against the head .or shoulder on the shaft, axle or shaft i9 «by means of tapered roller'bear the cups of the'roller bearings being mounted in ings comprising the cups `2li Amounted»«within-the the sprocket or otherrotatable member and abut Asprocket and separated yby the internal annular ting against an internal annular rib therein, a rib 2| therein, andthe cones 22 mounted'upon nut being provided upon the other end of the the shaft or axle I9, the usual tapered rollers 23 axle or shaft for longitudinally adjusting itwith being interposed 'between the Cupsiand cones of in^the :frameor supporting member to take up the bearings. play in the roller bearings. The frame or bracket Il "is formed of two simi Another object of the invention is to provide aroller bearing take-up of this character in which 40 lar members indicated at `a and b respectively, twonor. more roller bearing mounted ywheels lor connected in spaced relation at their lower ends other rotatable members may be mounted'upon by means of the stub shaft,24».through which ,the a shaft or axle, and play in all of the bearings lower `hook I8 is swiveled and connectedsat’their may bel simultaneously taken up by longitudinal upper ends to the clevis 25 by means of a bolt 26. 45 adjustment of the shaft or axle. In order to take up play in the tapered roller A further object is to provide a roller bearing bearings without disturbing the relative positions take-up of this character especially adapted for taking up play in tapered roller bearings within of the frame members a and b the shaft or axle I9 is provided at one end with a head or shoul the sprocket wheels of a chain hoist. The above objects together with others which 50 dered portion 21 fitting within a correspondingly shaped opening 28 in the frame member a, the will be apparent from the drawings and follow other end of the shaft or axle being screw thread ing description, or which may be later referred ed as at 29 and provided with a nut 30 to be to, may be attained by constructing the improved tightened against the outer side of the frame roller bearing take-up in the manner illustrated in the accompanying drawings, in which: 55 member b, a lock washer 3| being preferably in 3 2,408,899 terposed between the nut and the frame mem ber b. If desired a washer 32 may be interposed be tween the inner side of the frame member b and the adjacent shearing cone 221, and a, similar Washer 33 may be interposed between the head 21 of the shaft or axle and the other cone 22. 4 shaft abutting the outer side of the adjacent frame member, spaced roller bearing cones mounted upon the shaft. one cone abutting the last named frame member and the other cone abutting the head upon the shaft, a rotatable member surrounding the shaft, spaced cups within the rotatable member, and rollers between From the above it will be seen that in order the cups and cones. to take up any play in the tapered roller bearings 2. A take-up for roller bearings including a the nut 30 may be tightened upon the shaft or 10 frame comprising spaced frame members, a shaft axle I9, the head 21 bearing against the adjacent cone 22, taking up any play in that bearing, and through the rollers in that bearing and the cone 20 thereof, bearing against the internal rib 2l of the sprocket I6, said sprocket will be moved slightly to the right and the cup 2D of the right hand bearing as viewed in Fig. 2 is thus moved relative to the cone 22 of said bearing taking up the play therein located through said frame members and having a head upon one end, one frame member having an opening in which said head is located, the other end of the shaft being threaded and extending through an opening in the other frame member, a nut upon said threaded end of the shaft abut ting the outer side of the adjacent frame mem ber, spaced roller bearing cones mounted upon ` the shaft, one cone abutting the last named frame As the head 21 of the shaft or wheel slides 20 member and the other cone abutting the head within the opening 28 in the frame member a it upon the shaft, a rotatable member surrounding will be seen that the roller bearings are properly the shaft, an internal rib in the rotatable mem taken up without changing the relative position ber, spaced cups within the rotatable member of the frame members a and b. abutting opposite sides of said rib and rollers be In Fig. 3 is shown the manner in which two or 25 tween the cups and cones. more sprockets or other rotatable members may 3. A take-up for roller bearings including a be mounted upon a single shaft or axle and play frame comprising spaced frame members, a shaft in all of the roller bearings may be simultaneously taken up by means of the same invention as above described. In this view the frame I1’ may comprise the frame members a’ and b’ and the shaft or the axle I9’ is provided with a head 21' slidably ñt ting within the opening 28’ in the frame mem ber a'. The sprockets I6’ are mounted upon the shaft or wheel by means of tapered roller bearings com prising the cones 22’ upon the shaft or axle and located through said frame members and having a head upon one end, one frame member having 30 an opening in which said head is located, the other end of the shaft being threaded and ex tending through an opening in the other frame member, a nut upon said threaded end of the shaft abutting the outer side of the adjacent frame member, spaced pairs of roller bearin cones mounted upon the shaft, the innermost cone of each pair abutting the adjacent cone of the adjacent pair, one outermost cone abutting the the cups 20' within the sprockets, the tapered last named frame member and another outermost rollers 23’ being interposed therebetween. 40 cone abutting said head, a rotatable member sur The nut 30' may be mounted upon the screw rounding each spaced pair of cones, spaced cups threaded end 29' of the shaft or axle with a lock within the rotatable members and rollers between nut 3| ’ interposed between the nut and the outer the cups and cones. ’ side of the frame member b', and a washer 32' 4. A take-up for roller bearings including a may be interposed between the inner side of the frame comprising spaced frame members, a shaft frame member b’ and the adjacent cone 22', 4. located through said frame members and hav while a washer 33' may be interposed between the ing a head upon one end, one frame member hav inner surface of the frame member a’ and the ing an opening in which said head is located, the adjacent cone 22'. other end of the shaft :being threaded and ex With this construction, in order to take up play tending through an opening in the other frame in the bearings, it is only necessary to tighten member, a, nut upon said threaded end of the the nut 30', the play in the bearings of both sprockets being taken up in the same ymarmer as above described where a single sprocket is jour nalled upon the shaft or axle. I claim: 1. A take-up for roller bearings including a frame comprising spaced frame members, a shaft located through said frame members and having a head upon one end, one frame member having shaft abutting the outer side of the adjacent frame member, spaced pairs of roller bearing cones mounted upon the shaft, the innermost cone of each pair abutting the adjacent cone of the adjacent pair, one outermost cone abutting the last named frame member and another outermost cone abutting said head, a rotatable member sur rounding each spaced pair of cones, an internal rib in each rotatable member, spaced cups within an opening in which said head is located, the Gf) the rotatable members abutting opposite sides of other end of the shaft being threaded and ex said ribs and rollers between the cups and cones. tending through an opening in the other frame member, a nut upon said threaded end of the HAL F. WRIGHT.