US1723928A

US1723928A - Rolling-mill bearing

Info

Publication number: US1723928A
Application number: US53931A
Authority: US
Inventors: Herman A Fisher
Original assignee: Individual
Current assignee: Individual
Priority date: 1925-09-01
Filing date: 1925-09-01
Publication date: 1929-08-06
Anticipated expiration: 1946-08-06

Description

Aug. 6, 1929. H. A. FISHER ROLLING MILL BEAR TING Filed Sept. 1, 1925 m Mr M mum/M 5 5 my A m m .P E H E a 6 i 2 ATTORNEYS Patented Aug. 6, 1929.

UNITED STATES HERMAN A. FISHER, OF WORCESTER, MASSACHUSETTS.

ROLLING-MILL BEARING.

Application filed September This invention relates to a journal or roll bearing for use in machines in which the bear ings sustain excessively heavy pressure and is more particularly an improvement on the journal described and claimed in my copending application filed January 16, 1925, Serial Number 2941.

It is the general object of my invention to improve the construction of such bearings and to provide improved means for lubrlcating and cooling the same. With this general object in. View, one feature of the invent on relates to the provision of a journal in WlllCh a liner forms a fraction of the bearing surface of the journal and in which a chamber,

preferably coextensive with and adjacent the liner is supplied with a medium for cooling the liner and in which lubricant is furnished through a port near that end of the liner which is adjacent the path of approach of the roll neck, which lubricant will be picked up by said roll neck and be spread over the liner and prevent undue heating of the liner and lubricant.

A further feature of the invention is the provision of journal box or bearing having a liner, a cooling chamber coextensive with the liner and in communication with an arcuately shaped channel having one face open to the roll neck disposed in the journal and embracing a greater portion of the roll neck so that a cooling medium supplied to the chamber and channel will come in direct contact with the roll neck and thereby main- 5 tain the liner and roll neck at a proper working temperature, packing rings being provided to prevent the loss of fluid from the ends of the journal.

This invention will be best understood to from a consideration of the following detailed description, in view of the accompanying drawing forming a part of the specification; nevertheless it is to be understood that the invention is not confined to the disclosat ure, being susceptible of such changes and modifications which shall define no material departure from the salient features of the invention as expressed in the appended claims.

Figure 1 is an end View of one form of the journal. I

Figure 2 is a longitudinal vertical section taken along the line 2-2 of Figure 1.

Figure 3 is a transverse vertical section at taken along the line 33 of Figure 2.

till

1, 1925. Serial No. 53,931.

Figure 4: is a transverse vertical section taken along the line 4-4 of Figure 2.

Figure 5 is a rean end view of a modified form of the journal.

Figure 6 is a longitudinal vertical section taken'along the line 6 -6 of Figure 5.

Referring more particularly to the drawings 10 designates a roller 'employed in rolling mills and provided with a roll neck 11 formed on the end of the roll and of reduced diameter. l

The roll neck is received Within a longitudinal passage 12 in a casing which is composed of two sections 13 and 14:. The upper section 13 is of less thickness than the lower section 14 and is removably secured to the lower section by bolts 15. The upper section is convexed as shown at 16 and has cut-out portions 17 at the ends thereof in which are snugly fitted arcuately shaped carrier blocks 18, the blocks being so designed as to form a continuation of the convened portion of the section 13 and provide bearing surfaces for the opposite ends of the roll neck 11.

That portion of the wall of the passage which lies along the bottom of said passe e and included in the lower section 14 of t e casing is cut away longitudinally and circumferentially to provide a seat 19 for an arcuately shaped liner 20 which has its curved active face 21 raised above the wall of the passage and in engagement with the surface of the roll neck 11 so that the roll neck will not come in contact with the walls of the passage .and thus prevent sealing of the passage. The liner 20 is made of some nonfriction metal well known in the art. A longitudinal edge 22 of the liner is beveled adjacent a port 43 to permit lubricant from said port'to be readily drawn in between the liner and the roll neck with the least possible friction.

The section 14 is cored below the liner 20 and close to said liner to provide arouately shaped passages 23 and 24 forming cooling chambers preferably coextensive with the liner 20. These passages are connected together intermediate their ends by transverse passages 25 so that proper circulation of a cooling medium is afforded. A duct 26 connected with passage 23 forms an inlet for the cooling medium and terminates at 27 in the end wall of the section 14. ll. duct 28 connects the passages with a channel or recess 29 to be described.

The walls of the passage 12 are cut away for a portion of the length of the

sections

13 and 14 as shown in Figures 2 and 6, along the full arcuately shaped inner face of the section 13 and along portions adjacent the opposite edges of the liner 20 to provide said channel 29. It will be noted that the channelembraces the greater portionof the circumferential area of the roll neck 11 and since the face of the channel is entirely open, the roll neck will be exposed over the greater portion of its surface to a cooling medium supplied from the coolin'gchambers 23' and 24. A discharge duct 30 running the length of the section 14 has an elongated port 31 connecting said duct with the channel 29 at a point on the side of the liner 20 which is opposite the, inlet duct 28. The duct 31 terminates at 32 in the rear end of the section 14.

A cup-shaped member 33 is employed in the form shown in Figures 5 and 6 and has a flanged inner open end 34 bolted to the rear ends of the

sections

13 and 14 and housing a reduced end 35 of the roll neck 11. It must be borne in mind that the casings in the two constructions shown in Figures 1 to 4inclusive and Figures 5 and 6 are identical. In addition, the casing in Figures 5 and 6 is provided with the cupshaped member 33 to receive and distribute the cooling medium to the passages in the casing while in Figures 1 to 4 inclusive the coolin medium is supplied directly to the port 2 and duct 26 in the lower section 14. The closed end 37 of the cup-shaped mem ber is provided with a central internally threaded opening 38 into which is adapted to be screwed a pipe connection through which is supplied a cooling medium under pressure such as oil or water. The cupshaped member has ahollow enlargement 39 depending therefrom providing a passage for the cooling medium from the member 33 to the duct 26, the passage registering with the port 27 in the end wall of the section 14. The cu is provided with perforated ears 40 wliereby said cup is bolted to the

sections

13 and 14.

The section 14 (Fig. 2) has a longitudinal duct 41 terminating in the rear end wall in a port 42 to whichis adapted to be connected a pipe for supplying lubricant under pressure. An elongated narrow port 43 connects the duct 41 with the central passage 12 in the casing and at that beveled or cham fered longitudinal edge of the liner 20 which is adjacent the path of approach of the roll neck 11 so that the lubricant from the duct will be picked up by the revolving roll neck and spread over the active surface 21 of the liner. The lubricant is carried on the surface of the roll neck in a thin film and in direct contact with the cooling medium in the channel 29 where it forms with 14 to hold the packing ring in place.

Packing rings

45 and 46 are disposed at the inner end of the casing and between said end and a shoulder 47 on the roller 10. A resilient wire ring 48 embraces ring 46 and aids in sealing the rings to the inner end of the casing.

When the rollers 10 are water cooled, a pipe may be inserted through a longitudinal passage in the roll neck for the purpose.

Having described the construction and advantages of my improved bearing, I do not wish to be limited to the details herein disclosed, otherwise than as set forth in the claims.

What I claim is:

1, A journal bearing for the roll neck of a roller having in combination a casing provided with a longitudinal passage to receive the roll neck, a liner, a portion of the passage being cut away to form a seat for said liner, said casing adjacent the liner being cored to provide a coolin chamber, the section of the casing whic supports the liner being provided with a longitudinal duct ofening into said passage ad'acent one end 0 the liner for suppl g In ricant to the surface of the roll neclr r said roll neck being adapted when revolved to spread the lubricant over a face of the liner.

2. A journal bearing for the roll neck of a rollerhaving in combination a casing provided with a longitudinal passage, a liner therein forming a portion of the wall of the passage and havin one face above the said wall, the casing eing provided with a coolin chamber adjacent the liner and coextensive with said liner, the wall of the passage being cut away for a greater rtion of the circumference thereof to th m a channel for a coolin medium so that a greater portion of sur ace of the roll neck is exposed directly to the cooling medium, the ends of said channel terminating adjacent the ends of the liner, the casing having a duct connecting the channel with the cooling chamber.

3. A journal bearing for a rotating member comprising a casing having a longitudinal opening arranged to receive saidv member, said casing being cored to form a cooling chamber adjacent said bearin opening but separated therefrom, and sai chamber permitting the passage of a cooling fluid therethrough, means for feeding lubricant to the rotating member at a fixed point in said casing, and means acting normally and continuously for conducting the cooling fluid from said cooling chamber to directly engage and cool the previously lubricated portion of the rotating member at a fixed point in said casing substantially spaced peripherally from the point of lubrication.

4. A journal bearing for a rotating member comprising a casing having a longitudinal opening arran ed to receive said member, said casing being cored to form a cooling chamber adjacent said bearing opening but separated therefrom, and said chamber permitting the passage of a cooling fluid therethrough, and means axially disposed adjacent one edge of said cored portion for feeding lubricant to the rotating member, said cooling chamber along the opposite edge of the cored portion being in direct communication with the rotating member, whereby the cooling fluid from the cooling chamber may mix with the lubricant and further cool said rotating member.

5. A journal bearing for a rotating shaft comprising a casing having a segmental shaft-supporting portion and a recessed cooling portion with anopen side adjacent said shaft, said casing also having a cooling chamber closely adjacent said shaftsupporting portion but separated from said shaft, means to feed a lubricant directly to said shaft-supporting portion, and additional means acting normally and continuously to feed a cooling liquid through said cooling chamber and from said chamber to said recessed cooling portion in direct contact with said shaft and lubricant, whereby said shaft is both lubricated and cooled.

15. A journal bearing for a rotating member comprising a casing having a segmental bearing portion, means to supply a lubricant to said rotating member adjacent the point where said member enters engagement with said bearing portion, said casing hav ing a cooling chamber closely adjacent said bearing portion but separated from said rotating member, and additional means to feed a cooling liquid through said cooling chamber and from said chamber in direct contact with the remaining portion of the periphery of said rotating member, said cooling liquid engaging said rotating member adjacent the point where the rotating surface of said member leaves said segmental bearing portion.

HERMAN A. FISHER.