USRE25505E - Geyer - Google Patents

Geyer Download PDF

Info

Publication number
USRE25505E
USRE25505E US25505DE USRE25505E US RE25505 E USRE25505 E US RE25505E US 25505D E US25505D E US 25505DE US RE25505 E USRE25505 E US RE25505E
Authority
US
United States
Prior art keywords
bearing
rubber
thrust
plates
members
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
English (en)
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Publication date
Priority claimed from US798911A external-priority patent/US2970868A/en
Application granted granted Critical
Publication of USRE25505E publication Critical patent/USRE25505E/en
Expired legal-status Critical Current

Links

Images

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F1/00—Springs
    • F16F1/36—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers
    • F16F1/42—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing
    • F16F1/52—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded in combined stresses
    • F16F1/54—Springs made of rubber or other material having high internal friction, e.g. thermoplastic elastomers characterised by the mode of stressing loaded in combined stresses loaded in compression and shear
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/06—Elastic or yielding bearings or bearing supports, for exclusively rotary movement by means of parts of rubber or like materials
    • F16C27/063—Sliding contact bearings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M7/00—Details of attaching or adjusting engine beds, frames, or supporting-legs on foundation or base; Attaching non-moving engine parts, e.g. cylinder blocks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F2236/00—Mode of stressing of basic spring or damper elements or devices incorporating such elements
    • F16F2236/12—Mode of stressing of basic spring or damper elements or devices incorporating such elements loaded in combined stresses
    • F16F2236/123—Mode of stressing of basic spring or damper elements or devices incorporating such elements loaded in combined stresses loaded in compression and shear

Definitions

  • This invention relates to a thrust bearing and, in particular, to a thrust bearing which will permit small, relatively friction-free adjustments in a direction at right angles to the direction of the thrust.
  • the bearing of the invention may be used to advantage in a variety of applications where small adjustments under heavy loads are required. Typical of the applications for which the bearing may be used are calender roll mountings, machinery mountings, and bridge end mountlogs.
  • the bearing of the invention is particularly useful in a four roll calender of the type having an oft-set roll.
  • rubber stock is fed between the off-set roll and the top roll to form a continuous sheet of rubber.
  • This sheet of rubber is continuously fed with a continuous sheet of fabric between the top and middle rolls to calender the rubber onto the fabric.
  • Adjustments in the nip or space between the top and middle rolls to accommodate finished fabric gauge splices in the fabric and other irregularities are commonly made by vertically moving the top roll.
  • One object of the present invention is to provide a thrust hearing which will withstand the high horizontal thrust exerted on the top roll with very little deflection while allowing relatively easy vertical adjustment of the top roll.
  • the thrust bearing of the present invention utilizes a layer of confined rubber which is substantially incompressible but which, on the other hand, is capable of deformation in the shear direction.
  • the thrust load is resisted by the hydrostatic pressure induced in the rubber which is mounted in such a manner that deflection must produce a volumetric change in the rubber, while movement in the vertical direction or shear load is resisted only by the elastic deformation of the rubber in shear, while constant volume of the confined rubber is maintained.
  • a layer of the rubber is interposed and confined between a plate and channel, fitted with suitable rocker plates so that the top and bottom of the bearing are moveable relative to each other in a parallel direction.
  • the thrust bearing so constructed is placed behind each of the journal bearings of the top roll of the calender.
  • the horizontal thrust on the top roll is resisted by the confined, substantially incompressible rubber between the plate and channel, while adjustment of the top roll in the vertical direction may be readily made by deformation of the rubber in shear.
  • the break-away force is not involved in the use of the thrust bearing of the instant invention and the difficulty in adjustment and the wear inherent in the use of sliding or roller bearings is eliminated.
  • the bearing also provides a self-aligning feature.
  • Calender rolls deflect in service and have to bc crowned in order to produce a fiat sheet of rubber.
  • the roll necks which of necessity are smaller, add to this deflection.
  • the effect of this deflection on a calender bearing is to increase bearing pressure on the load side and decrease it on the far side.
  • the rubber portion of the bearing of the present invention acts similar to Water under hydrostatic pressure and equalizes the load. The rubber is redistributed about the centerline of the bearing, thus effecting self-alignment while maintaining the original thickness at the centcrline.
  • FlG. 1 is an elevational view of a four roll calender incorporating thrust bearings in accordance with the present invention
  • FIG. 2 is a sectional view taken on the line IIII of FIG. 1,
  • FIG. 3 is an enlarged sectional view taken on the line IIl-llI of FIG. 2,
  • FIG. 4 is a partial sectional view showing the movement of the parts of the thrust bearing under vertical adjustment of: the top roll of the calender,
  • FIG. 5 is a perspective view of the thrust bearing with parts broken away to show the details of the bearing
  • FIG. 6 is an elcvational view, partly in section, showing the free end of a bridge resting on the bearing of the invention to allow horizontal expansion of the bridge,
  • FIG. 7 is a sectional view of a modified form of the bearing of the invention which provides for expansion or adjustment in two directions, and
  • FIG. 8 is a sectional view of still another modified form of the bearing of the invention.
  • FIG. 1 there is shown a conventional four roll calender, generally designated by the reference number 10, incorporating thrust bearings 11 constructed in accordance with the present invention.
  • two thrust bearings 11 are provided, one behind each of the two journal bearings 12 of the top roll 13.
  • the thrust bearings 11 replace the conventional wear plates commonly provided in such calenders and are held in place by bolts 14 which extend through the frame of the calender and thread into the thrust bearings 11.
  • the four roll calender is otherwise of conventional construction and includes an oft-set roll 15 which is journaled at its ends in journal bearings 16, a middle roll 17 which is journaled at its ends in journal bearings 18 and a bottom roll 19 which is journaled at its ends in journal bearings 20.
  • the journal bearings of the top and bottom rolls are slidably mounted in suitable Ways 21 and 22.
  • the journal of off-set roll 15 is slidably mounted in ways 23 and 24. Ways 23 and 24 may be provided with wear plates 23a and 2421.
  • Top roll 13 is adapted to be adjusted vertically to vary the nip or space between it and middle roll it! by adjusting screws 25 which are connected to the journal bearings 12.
  • the screws 25 are adapted to he [lClllZllCL by conventional actuating l'nechnnisins 26 mounted on the top of the frame of the calender.
  • Off-set roll 15 is adapted to be adjusted horizontally to vary the nip or space between it and top roll 13 by screws 27 which in turn are rotated or actuated by mechanisms 21 roll 13 and olfet roll l and rubber to coat the bottom side of the fabric is slicctcd out between roll 17 and bottom roll 19.
  • the thrust bearing ll includes a channel 29 and plate 36 having a layer of rubber 31 inccn.
  • the rubber layer 31 is confined Mel 29 and plate 3% on one side by 29b of the channel 29 and in the other to members 32 which can rock in grooves i tunnel 29 and plate 30 to permit relative v i .i movcn'aent between the channel 29 and plate 3%] and shear deformation of the layer or pads of rubber 31 in the direction of the arrows in FIG. 5.
  • the rocker connection between the plate members 32. and the parallel channel 29 and plate 30 is conveniently provided by forming tlmctaii slots 33 and 34 in the opposed faces of 'iuicl 29 and plate 30 respectively into which the c .04. or the plates 32 extend. This permits the plate 32 to rock or cock when the channel 219 and plate 36 are moved relative to each other, and still not mechanically connect channel 29 and plate 30. This rocking movement can be readily seen by comparison of H65. 3 and 4.
  • 'l he grooves 33 and 34 are preferably made sufficiently deep to allow for some compression of the rubber layer 31. v'hile rubber is substantially incompressible, it can be compressed to a very slight extent under very high loads.
  • the plate 30 is also made of suflicient thickness to extend above the outer surfaces of the flanges 29a and 29b so that the flanges do not take any of the compression load.
  • the thrust bearing 11 is providcd in place of conventional wear plates behind each of the journal bearings 12 of the top roll 13 and are held in place by bolts 1% which thread into opening 35 in the plate 29.
  • the rubber layer or pads 31 are made of relatively soft rubber so that they will deform readily in shear.
  • the pads 31 are preferably bonded to the plates 29 and 30 to form an integrated unit which may be easily handied.
  • the thrust bearing 11 of the invention is shown used as an end support for a bridge 36. 'l he bearing takes the place of the usual roller support. It will be apparent that the bearing will accept the high vertical thrust imposed by the bridge while allowing for thermal expansion of the bridge in the direction of the arrow in HS. 6.
  • the resulting bearing may be used as a m iincry mounting or for other uses where ad ustments in two directions are desired.
  • the portion indicated by the rct'crcnt-e numeral 33 represents one leg of a piece of mach nery.
  • FIG. ll. there is shown another modification of the 1 'ng of the invention used to support a leg of a piece of rnmhinery.
  • This bearing is also a. multiple unit for allowing. cspa sion of long equipment in one direction.
  • top and bottom channels 29d and 29c are bolted together and the leg 39 of the machine bolted to a common plate 39c between channels 29c and 2%.
  • a thrust bearing comprising. a pair of spaced plates, a layer of rubber interposed between said plates, means extending between said plates for confining said rubber against lateral llow by thrust loads applied perpendicularly to said plates while allowing parallel movement of said plate: and shear deformation of said layer of rubber with out changing volume by shear loads applied to the bearing.
  • a thrust bearing comprising. a pair of plates, a layer of rubber interposed between said plates, wall members extending between said plates for confining said rubber against a lateral flow by thrust loads applied perpendicularly to said plates. at least one set of opposing wall members having a rocking connection with said plates so as to allow relative parallel movement of said plates and shear deformation of said layer of rubber without changing volume by shear forces applied to said bearing.
  • a thrust bearing con'iprising. a pair of parallel substantially rectangular plates, a layer of rubber interposed between said plates, one of said plates having flanges on two sides thereof having sliding engagement with two opposed sides of the other plate to thereby confine said rubber against lateral flow in a direction perpendicular to said flanges by thrust loads applied to said plates in a perpendicular direction, plate members extending between said parallel plates and said flanges in a direction perpent'licular to said flanges to thereby confine said rubber against lateral iiow in a direction perpendicular thereto by thrust loads applied in a perpendicular direction to said parallel plates, said plate members being pivoted in recesses in said parallel plates to allow relative parallel movement of said parallel plates and shear deformation of said layer of rubber without changing volume by shear forces applied to said bearing in one direction.
  • a thrust bearing comprising, a pair of parallel substantially rectangular plates. a layer of rubber interposed between said plates, one of said plates having flanges on two sides thereof having sliding engagement with two 0pposed sides of the other plate to thereby confine said rubber against lateral flow in a direction perpendicular to said flanges by thrust loads applied to said plates in a perpendicular direction, plate members extending between said parallel plates and said flanges to thereby confine said rubber against lateral tlow in a direction perpendicu- 1111' thereto by thrust loads applied to said parallel plates in a perpendicular direction, said plate members extending into dovetailed grooves formed in the inner surfaces of said parallel plates whereby said members may rock to allow relative ,arallcl movement of said parallel plates anll shear dciormsiion of said layer of rubber Without A ing volume when shear loads are applied to said .i.
  • a thrust bearing comprising: a pair of opposed rigid lard-bearing members; a yieldable, substantially incompre-sible ,ncdinm intergmsed between and separating said Mi -bearing members; wall members, extending between sata lone/bearing members, for confining said medium against flow from between said load-bearing members when id load-lx'aring members are subjected to thrust loads (ted to force them together; said medium filling the space confined by said load-bearing members and said well members; at least one opposed set of said Well members having rocking crtinnections with said load-bearing members so as to permit relative movement of said loadhearing members in a direction normal to said thrust loads wi h mt change in volume of said medium confined therelwtn'cmv (i.
  • a thrust bearing comprising: a pair of opposed rigid members; a yieldable, substantially incom- .ium interposed between and separating said input-hearing members; wall members, extending between said load-bearing members, for confining said medium ngnsinst flow from between said load-bearing members when said [mid-bearing members are subjected to thrust loads directed to force them together; said medium filling the space confined by said load-bearing members and said irall members; one opposed pair of said wall members being parallel and pivotally mounted in recesses in said load-bearing members to permit relative movement of said load-bearing members in a direction normal to said pivotally mounted wall members without change in volume of said medium confined therebetween.
  • a thrust bearing comprising: a pair of opposed rigid lotui-bearing members; a yieldable, substantially incompressible medium interposed between and separating said load-bearing members; rigid lateral confining means, extending between said load-bearing members, for confining said medium against flow from between said load-bearing members when said load-bearing members are subjected to thrust loads directed to force them together; said medium filling the space confined by said load-bearing members and said lateral confining means; said lateral confining means permitting relative parallel movement of said load-bearing members normal to the direction of said thrust loads wit/tout change in volume of said medium t terposed therebetween ll'lillL simultaneously preventing any relative rotation of said load-beariin; members.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Child & Adolescent Psychology (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Bridges Or Land Bridges (AREA)
  • Support Of The Bearing (AREA)
US25505D 1959-03-12 Geyer Expired USRE25505E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US798911A US2970868A (en) 1959-03-12 1959-03-12 Thrust bearing

Publications (1)

Publication Number Publication Date
USRE25505E true USRE25505E (en) 1963-12-31

Family

ID=25174571

Family Applications (1)

Application Number Title Priority Date Filing Date
US25505D Expired USRE25505E (en) 1959-03-12 Geyer

Country Status (3)

Country Link
US (1) USRE25505E (fr)
BE (1) BE588563A (fr)
DE (1) DE1218223B (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH705937A1 (de) * 2011-12-23 2013-06-28 Rieter Ag Maschf Textilmaschine mit beweglich gelagertem Maschinengestell.

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB626738A (en) * 1947-02-06 1949-07-20 Arthur Stanley Colquhoun Hart Improvements in or relating to supporting elements for shafts, rollers and the like
DE826675C (de) * 1950-07-06 1952-01-03 Arn Jung Lokomotivfabrik G M B Verbindung von Maschinenteilen durch Pendelstuetzen
GB785404A (en) * 1954-12-27 1957-10-30 Maschf Augsburg Nuernberg Ag Improvements in laminated springs
DE965785C (de) * 1955-03-12 1957-06-19 Ver Westdeutsche Waggonfabrike Radsatzfuehrung und -federung bei Fahrgestellen von Schienenfahrzeugen, insbesondere bei Drehgestellen von schnellfahrenden Schienenfahrzeugen
US2846210A (en) * 1955-04-06 1958-08-05 Carrier Conveyor Corp Resilient connectors

Also Published As

Publication number Publication date
DE1218223B (de) 1966-06-02
BE588563A (fr) 1960-07-01

Similar Documents

Publication Publication Date Title
US2479974A (en) Design and construction of rolling mills
JPS5994508A (ja) ハイドロスタテイツク式の支持装置及び圧延機
US4249290A (en) Controlled deflection roll
US2312648A (en) Metal rolling mill
US5338279A (en) Hydrostatically supported sag-compensation roll, in particular for paper manufacturing machines
US4105264A (en) Processing roller having reinforcing jacket of hard metal
US2970868A (en) Thrust bearing
US2056586A (en) Live center
CN101428295B (zh) 微尺度静定性四辊轧机
US2243009A (en) Rolling mill and bearing therefor
USRE25505E (en) Geyer
IE48174B1 (en) Machine for folding sheets
US4310204A (en) Hydrostatic support apparatus
US3572079A (en) Rolling mills
RU2218221C2 (ru) Прокатная клеть
RU2311241C2 (ru) Устройство для регулирования усилий, прикладываемых к прижимным роликам
US3064509A (en) Rolling mills for rolling metal sheet and strip
US3762202A (en) Rolling mill for flat-rolled products
US3517531A (en) Rolling mill gage control actuator system
US4453299A (en) Controlled deflection roll
US2274764A (en) Thrust bearing
US3535760A (en) Roll with hydraulically supported,yieldable cover structure
JPS62503114A (ja) 制御バルブ
US4149397A (en) Rolling mill
US1870509A (en) Rolling mill