US1012218A

US1012218A - Journal-box.

Info

Publication number: US1012218A
Application number: US52732309A
Authority: US
Inventors: Tadashi Ono
Original assignee: Individual
Current assignee: Individual
Priority date: 1909-11-10
Filing date: 1909-11-10
Publication date: 1911-12-19
Anticipated expiration: 1928-12-19

Description

TL oNo.

JOURNAL BOX.

APPLICATION FILED Nov. Io, 1909.

1,012,218. i Patented De0.19,1911.'

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W W e ff/M.

T. ONO.,

JOURNAL BOX.

APPLIGATION FILED Nov.1o, 1909.

1,012,218, Patented Dec.19,1911.

3 SHEETS*SHEET 2.

T. ONO.

JOURNAL BOX.

APPLICATION FILED NOV. 10, 1909. l 1,012,218. l Patented Dec. 19, 1911.

3 SHEETS-SHEET 3.

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' UNITED STATESy PATENT i oEEicE.

v, fransen; oNo, or Tono, JAPAN.

JOURNAL-Box.

Application led November 10, 1909. Serial No. 527,328.

To all whomA it may concern:

.Be it known that I, TA'DASHI'ONO, a subject of the Emperor of Japan, residing at No. 33, Fujimicho, Azabukn, in the city of Tokyo, Empire of Japan, have invented. a new and useful Improvementin Journal- Boxes, of which the following is a specification. l

This invention relates to improvements in bearings and journals for shafts, especially for axles of cars and other horizontally disposed shafts.

An object of the invention is to provide a bearing in which the rotary shaft is lubricated automatically in that partin lwhich 'itis'supported 1 o 'Fig 2 and the right half of Fig. 4 showl Another object of the invention is to provide a bearing in which the lubricating oil is conveyed by means of the rotary shaft from a feeding chamber to that part'of theV shaft whichmust be lubricated and from there back to a storing chamber.

Another object of the invention is to prevent leakage of the oil from the box along the rotary shaft.

Another object of the invention' is to pre# vent the entrance of impure oil into the feeding chamber from said main chamber.

Other objects of the invention will be more clearly understood by reference to the following specification and accompanying drawings I and they will be more clearly pointed out in and by the 'appended claims.

One preferred embodiment of this inven,

tion is shown in the accompanying drawings in whichl Figure 1 is a longitudinal section through a journal box, the section being. taken vertically through the 4center line of the shaft. Fig. 2 is partly a side elevation and partly a section of the box. Fig. 3 is partly a' front elevation and partly a vertical transverse section ofv thev box. fFi'gL- "4 'is a sectional view, the left half of said.

re showing a section taken on line A-B ing'. section on line C- D of Fig. 2. Fig.

5 1s a to'p plan view, showing one half the bearing with the upper part thereof removed.

Similar reference characters indicate simi lar.. arts throughout the drawings.

T e box which forms the embodiment of my invention comprises a 'bottom part 7 and a top part 6. The latter is provided with a strong cover 1,v having .a depending` portion 2 in engagement with the brass 3,

which rests on the end 4 of shaft 5. The

parts

6 and 7 are connected by means of bolts 8, having nuts 9. For the purpose of locking the nuts in posit-ion on the bolts locking pins 10 are provided whichl extend loosely disposed within the key way 18 on Speeicationof Letters Patent. `Pjntjetl Dec. 19, '1911. i

said shaft, may serve as a fastening mea-ns for the ring 1 6. As the key 17 is loosely disposed within the key way 18, the shaft may play in longitudinal direction within the beari and as the ring 16 does not iitclosely on the shaft, the shaft therefore has also some lateral play. It is obvious from the foregoing description that in the common rotation yof shaft and ring oil from the feeding chamber is conveyed upwardly through the rotation of thering and downwardly again.

For the purpose of conveying oil from the -lubricating member 16 .to that part of the shaft'which rests within the brass, a wiper 20, (Figs. 1 and 4) is provided in the upper part of the box, a lateral projecting rim 19 of the ring 16 continuously engaging a .groove 21 formed in said wiper. The wiper 20 is held in position in the upper part of the box by means of lateral wings 22, 22', which are disposed horizontally between the ngSO frontand rear wall of the feedingchamber. l

The partit-ion wall 11 is not continuous in its up r part, a gap portion23 being providri therein, the front parts ofthewln'gs 22, 22 projecting into said gap thereby prevented from following the ring 16 in its rotary motion. In the embodiment shownjin the drawings, two passages24 are provided within the wiper 20, these sages leading from the rearpart ofthe wiper tos-the frontfthereof and beiugadapted to convey the o'il `which is takenv along by the ring from said `ring tothe journal box 3.

slanting forwardly and prevents thereby a and beingV 110 The lower part of the passages 24, 24- isa cap 37 in engagement with the lower facel return iow of the oil to the feeding chamber through said wiper and'groove 21. The rim 19 of the lubricating ring 16 4passes through the recesses 26, provided in the lateral walls of the

passages

24, 24. These recesses 26 are broad enough to permit the passage of the rim 19 without wiping the oil adhering to said rim, so that the oil is not removed therefrom before the rim approaches the apertures leading into the

passages

24, 24. The lower part of said passages is bent downwardly and in the front part of the opening of said passages a small nose 27 is provided which serves for leading the oil to the rear portion of the upper brass 3. The slanting direction of the passages also serves yfor preventing a return flow of the oil through the recesses 26; this return flow would be possible when the shaft would rotate at a very low speed.

As may be clearly seen from Fig. 5, the wiper 20 consists oftwo symmetrical halves, so that in the rotation of the axle 4 inv one direction one-half of the wiper serves for the conveyance of the oil to the brass and in the rotation in opposite direction the other half of the wiper serves the same purpose. The brass 3 is prevented from displacement in longitudinal direction by means of front and rear flanges 28, 28', which project upwardly, engaging thereby the portion 2 of the cover 1. Movement of the brass in lateral direction is prevented by means of two flanges 29, which project downwardly from the bearing cover 2 as clearly shown in Fig. 3. A small ledge 3() leading from the rear part of the brass 3 downwardly and forwardly serves `as a wall for a groove 31 rovided on the rear part of said brass, as indicated in Figs. 1 and 2. The oil discharged through

vassages

24, 24 of the wiper is conveyed into the groove 31 which leads the oil into the lower journal box.

The lowerbrass comprises a lubricating well, the rear and front walls of said well extending upwardly and being provided with

circumferential ledges

33, 33. By this means the end 4 of the axle 5 is continuously in engagement with the lubricating oil stored in said well 32, the front and

rear ledges

33, 33 being in engagement with said axle. As an additional support a lug 34 is provided within the well 32, which lug also is in engagement with the end 4 of the axle and supports the same. This lug also serves as a reinforcing means for the wall of the well 32. A 'support`36 centrally disposed with respect to the well 32 serves for pressing the same into engagement with the end 4 of the axle. This support 36 comprises of the well andis prevented from lateral movement by means of flanges 35 depending therefrom. Thefcap 37 is fastened to a rod 41, which in its lower part carries a piston 40 slidably disposed within a cylinder 39. The base ofthe support comprises a plate 38, preferably integralwith the cylinder 39. A spiral spring 42, interposed between the base of the support and the cap presses the same into engagementwith the lower face of the lubricating well. The spring 42 must be selected of such resiliency that in jars and `vibrations of the entire structure the well 32 does not separate from the endJ4 of the axle. The spring also serves to maintain a suitable frictional engagement between the lubricating well and the shaft, even after one or both of these parts on ace count of wear have undergone any change in their frictionalsurface.

As indicated in Fig. 1, an oil gage 43 is in integral connection with the base 38, said oil gage being also adapted to serve asa handle for said support. Webs 44, vprojecting from the bottom of the lower half 7 of the box, may serve as a means for slid ing the support and oil gage into place.

Two triangular walls 45, projecting fromi the'partition wall 11 and the bottom part 7,

of the box serve as a supporting means for a screen 46, formed by wire nett-ing or some similar structure. This netting prevents the ent-rance of impure oil through hole 13into the feeding chamber 12. An aperture'48 of preferably rectangular area in thev front wall of the entire structure may be closed by means of a cover 51, which is fastened to the two

parts

6 and 7 by means of

bolts

49, 49, 5o, v5o and the nuts 5a, 53', 54 54.'. A packing 52 may be inserted between the cover 51 and the box.

For the purpose of preventing a sudden change of pressure of air contained in the bearing, which change couldu eventually be caused by the'play of the axle in longitudi nal direction and which would result 1n conveying an over large amount of oil from the main chamber into the feeding chamber, a communication between the outer air and the a-ir in the journal box is provided.

For the purpose of facilitating inspection'v of the bearing and mainly for the purpose of observing the amount of oil a window 56 is provided in the cover. A bolt 58 serves as a closing meansfor an oil inlet 57 through which the journal box may be filled with oil.

The oil entering the feeding chamber 12 through the aperture 13 is circulated within said feeding chamber by means of the rin 16. The amount of oil which is conveye upwardly by means of the lubricating rin 16 is then wiped oif said ring by means o tbe'member 20 and is larger, even at a slow rotation of the shaft, than lthat amount of oil which is conveyed inwardly through the aperture 13. The level 15 of the oil in the feeding chamber is therefore lower than the level of the oil 15 in the main chamber. The level of the oil within the feeding chamber depends upon the speed with which the shaft rotates, the vibration of the entire bearing, and upon the amount of the oil which is returned from the axle into said chamber when the axle is at rest. But in the movement of the axle it cannot lbe prevented that oil is thrown against the interior walls of the feeding chamber 12 and that it adheres .to said walls. The surface opposite the partition wall '11`is indicated with 61 and the oil thrown against the surface 61 during the rotation of the axle would naturally tend to flow through the aperture, which is provided in the'journal box for the axle.` For the purpose of preventing this leakage an annular groove 63 is provided within the wall 62. The oilv coming from the rear face 61 of the feeding chamber will flow down in the groove 63. In the lower part of-said groove 63 the oil may then follow the surface 61 and return into the feeding chamber flowing down this surface or in being conveyed through the groove 63 it will be returned into-the feeding chamber through the hole 65 provided in the lower part of said groove. The rear wall 62 of the bearing is not provided with a cylindrical passage, but the diameter of the aperture in the inner surface of said wall 62 is larger than the diameter of the aperture provided in the outer surface thereof. By this means the oil dripping from the front surface 64 of the groove 63 is. conveyed into the annular channel 66 of the lubricating ring. This annular channel is formed by means of a conical wall continued by'a cylindrical surface 71, another conical wall 7() forming the outer retaining wall of said channel 66. It is advisableto make those annular ledges 67 and 68 by means of which the lubricating ring 16 is in engagement with the partition wall 11 and rear wall 62 respectively as small as possible for the purpose of decreasing the frictional resistance of the ring and the resist-ance resulting fromjthe cohesive force of the oil.

An annular recess 59 in the front'face of the ring 16 and a more shallow recess 69 in the rear face of the ring serve for conveying the oil which has been taken along in upward direction on the

walls

11 and 61 backward into the feeding chamber. The diameter of the ringv 16 is gradually decreased in the rear of the channel 66, said ring forming a conical surface as described, and the oil on said conical surface following the centrifugal force will run upwardly and collect within the channel 66 from which it will enter the annular recess 69 .and wear of the same.

' and return to the feeding chamber 12. The

conical part vof the lubricating ring 16 is adjacent a short cylinder 72, this cylinder having ya smaller diameter than any other portion of the ring. This portion of the ring is inopposition to a similarly shaped hole 73 of the journal box. Adjacent said portion is an annular shield 74, preferably integral with the cylindrical portion just described and with the rest of the ring,

`said annular shield 74 being separatediby a small distance 75 only from the rear face of the wall 60 of the bearing.y It is obvious that `this distance must notbe yso small that in the reciprocating longitudinal play of the axle the shield will strike against the bearing. The only parts therefore of the ring 16 which are in frictional engagement with stationary members of the bearing are the annular ledges 67 and 68. In t-he rotation of the shield air is drawn in by suctionv through the small gap 75.

"In the common rotation of the'shaft and ring oil will be conveyed upwardly withinv the annular space between shaft and ring andby a suitable groove or channel formed in the inner face of said ring the oil will be conveyed toward the bottom part of the groove. The Walls of the groove 79 are formed bythe inwardly extending shoulders 77 and 80. Following the centrifugal force the oil will therefore be conveyed through a V`plurality of holes extendin from said channel 79 to the recess 59 an from there back to the feeding chamber or to the upper part of the brass 3. The inner surface- 81 of the ring adjacent the groove 79 is cylindrical, an annular interspace being provided between the .axle 5 and the ring, this interspace being somewhat larger than the interspace between the surface 76 and the axle.

VBy vmaking this annular interspace larger at the right hand end of the ring the ring l16 will' continuously be held in engagement with the` partitionwall 11 and rear wall 61,

even when the axial adjustment of the end 4 has been changed on account of the tear Adjacent the shield 74 is a substantially cylindrical ring portion 82 to which a dust -shield 83 is fastened, said shield having the shape of a hollow pliable cylinder. This dust shield 83 covers the outer end of the lubricating ring '16 and is fastened to the axle 5. The dust shield 83 is adapted to follow the reciprocating motion of the axle on laccountof the pliability of the material used therefor.

'A preferable way of assembling the bearing is the following The lubricating ringi 16 and the wiper- 20 are adjusted with re spect to each other and the two halves of the

journal box

6 and 7 are loosely connectedby means of the bolts 8 and nuts 9.

After having fastened the/dust shield 83to the axle the key 17 is inserted into its key` way 18 By lifting the front end of the journall box the upper brass 3 may be put in place through the opening i8 and finally the lower lubricating well 32 and the support therefor are introducedl through the aperture 48. The cover 51 may be then placed onto the journal box.

The quantity of oil contained in the main ychamber 14 must be large enough so that the level thereof is higher than the lowestv portion of the lubricating ring 16. It is also possible to maintain said level at the same height as the lowest point of the aperture 73 provided in the rear vvall of the feeding chamber; said lowest point of the aperture has about the same height as the portion 84 adjacent the aperture 48, so that no oil Will be discharged from the bearing when the cover 5l it removed.

It is a Well-lrncvvn fact that by continuous immersion of the journal in oil the frictional resistance is considerably decreased. In addition to this, sudden changes in this rictional resistance are prevented by this feature.

The lubricating Well 3Q in the embodiment described is not under strain .and only serves the function of providing continuously the journal with oil thereby avoiding the rise of the temperature of the bearing.

lt is to be understood that-the invention nomme lchambers mounted on the axle, a wiping member engaging two opposing surfaces of said ring in said chamber, said ring being provided with an extension projecting through and beyond the Wall of the box.

2. In a device of the class described, the combination with an axle, of a box having chambers, a lubricating ring in one of said chambers mounted on the axle, a wiping member in engagement With said ring in said chamber, said ring being provided with an extension projecting through and beyond the Wall of the box, andan annular shield on said extension inlopposition rto said Wall. ln 'testimony whereof I aflix my signature in presence of two Witnesses.

TADASH UNO.

l/Vitnesses:

. 'il llc-nimeer., GENJI Koeler/ine.,