US3443295A - Table roll - Google Patents

Table roll Download PDF

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Publication number
US3443295A
US3443295A US525184A US3443295DA US3443295A US 3443295 A US3443295 A US 3443295A US 525184 A US525184 A US 525184A US 3443295D A US3443295D A US 3443295DA US 3443295 A US3443295 A US 3443295A
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US
United States
Prior art keywords
shaft
roll
roll shell
bearing
shell
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 - Lifetime
Application number
US525184A
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English (en)
Inventor
Donald B Denoyer
Edward D Beachler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beloit Corp
Original Assignee
Beloit Corp
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.)
Filing date
Publication date
Application filed by Beloit Corp filed Critical Beloit Corp
Application granted granted Critical
Publication of US3443295A publication Critical patent/US3443295A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
    • D21F1/00—Wet end of machines for making continuous webs of paper
    • D21F1/36—Guiding mechanisms

Definitions

  • a table roll for providing a dewatering support for a Fourdrinier wire having a roll shell disposed at the outside thereof and an internal supporting shaft having bearing supports at both ends and at the longitudinal center and having a bracket means fitted about the ends of the roll sleeve with bearing means operably disposed between the shaft and the bracket means and having means for adjusting the ends of the shaft relative to the ends of the roll shell in a radial direction wherein the adjustment means includes said bracket means and means for pivotally coupling the bracket means to the end of the internal shaft.
  • This invention relates to a table roll for a paper machine having a support means for holding the roll in substantial alignment and more particularly relates to a table roll having an internal shaft means which is bearing mounted to the roll shell at the longitudinal center thereof and which is provided with end clamp means which may be adjusted to cause the shaft to exert an upward thrust on the roll shell at the bearing mount.
  • the roll supporting structure of this invention may be applicable to a variety of uses where loads are required to be sustained on a horizontal rotating shaft with a minimum of shaft deflection.
  • the table roll as described herein is especially suited to a papermaking machine for providing a dewatering support beneath a Fourdrinier wire.
  • a water suspension of pulp is deposited on a moving Fourdrinier wire where it is dewatered to form a Web.
  • the web is then removed for being pressed, dried and polished as required.
  • the finished quality of the paper is dependent upon the proper formation of the web at the initial stages on the Fourdrinier wire. At that point it is important that the wire be maintained substantially horizontal which requires a substantially straight supporting roll.
  • the weight of the wire and web tend to deflect the table roll generating a sag in the vertical direction.
  • the movement of the Web itself tends to deflect the roll in the direction of the wire travel.
  • a table roll having a roll shell which is rotatably supported externally thereof at a central rigidifying shaft means, wherein the ends of the shaft means are adjustably clamped to the ends of the roll shell for being deflected about the internal bearing support to exert an upward thrust on the loaded areas of the roll shell.
  • FIGURE 1 is a fragmentary schematic showing of a portion of a Fourdrinier section of a paper machine illustrating the location of table rolls;
  • FIGURE 2 is an elevated view of a table supporting roll according to this invention illustrating the general configuration of the external features associated with the roll shell and the end support assemblies;
  • FIGURE 3 is an elevated end view of a table roll assembly according to this invention illustrating the adjustment means for varying the radial positioning of the ends of the rigidifying shaft;
  • FIGURE 4 is a sectional view of a supporting roll of this invention as taken along the lines IV-IV of FIGURE 3.
  • This invention concerns a table roll which utilizes an inner coaxial rigidifying shaft for supporting the major part of the distributed weight of a Fourdrinier wire traveling against the surface of an outer roll shell.
  • the roll shell is mounted for rotation both externally and internally thereof, and due to this mounting, means can be readily provided for deflecting the inner shaft in such a manner as to oppose deflection of the roll shell which would otherwise result from the weight of the Fourdrinier wire, of the shell, and of the associated Web.
  • the inner rigidifying shaft By mounting the roll shell for rotation at the external surface thereof the inner rigidifying shaft can have an outer diameter which is radially spaced from the inside of the roll shell along the entire length thereof from the central bearing support thereby providing deflection space for absorbing the weight applied to the roll shell as well as the weight of the shell and shaft. Also, by providing a bearing assembly between the outer surface of the inner shaft and the inner surface of the roll shell a fulcrum is offered about which the ends of the inner shaft may be deflected relative to the ends of the roll shell. This deflection of the inner shaft then effectively stresses the roll shell in opposition to stresses resulting from the weight of the traveling Fourdrinier wire and web.
  • FIGURE 2 illustrates a typical working environment for the supporting table roll of this invention.
  • FIGURE 2 is a typical Fourdrinier section with a traveling Fourdrinier wire 10 being supported horizontally such that the water pulp suspension is deposited onto the wire from a head box 11.
  • the wire is supported by a breast roll 12 and the pulp suspension forms a web on the wire in a well understood manner which passes over the dewatering mechanism consisting of the table rolls 13, 14 and 15 and a suction box 16.
  • the formed web is then taken off the wire following a subsequent roll known as the couch roll (not shown) whereupon it is pressed, dried and polished, also in a well understood manner. It is the weight of the wire and associated web on the rolls 13, 14 and 15 which has presented the sagging problem especially associated with increasing roll lengths.
  • a table roll 13 constructed according to this invention is shown generally in FIGURE 2 and consists of a roll shell 17 and end bracket supports 18.
  • the roll shell 17 is rotatably supported within the end bracket 18 at a roller bearing assembly 19.
  • the bearing assembly 19 is mounted at the outer surface 20 of the roll shell 17 and is maintained in position against a shoulder 21.
  • An inner rigidifying shaft 22 is disposed axially within the roll shell 17 and is substantially complementarily formed with the inner contour of the roll shell.
  • the shaft 22 is hearing mounted to the inner surface of the roll shell 17 at a roller bearing assembly 23.
  • the hearing 23 is mounted within the shell 17 in a well understood manner and the shell 17 is provided with rims 24 and 25 and labyrinth grooves 26 for defining and sealing a lubricant pocket 27 which holds the roller bearing assembly 23.
  • the sectional illustration of FIGURE 4 is broken at points 28 and 29 for the purpose of condensing the length of the table roll.
  • the bearing assembly 23 is deployed substantially centrally of the longitudinal axis of the assembly and the remaining portions of the shaft extend in both directions of the bearing 23 so as to be spaced as at 30 from the inner surface of the roll shell 17. It is apparent therefore that the end 31 of the shaft 22 may be deflected within the roll shell 17 using the bearing 23 as a fulcrum point.
  • the end 31 of the shaft 22 is pivotally connected to an adjustment bracket 32 which is an important part of the clamping means of this invention.
  • the bracket 32 is connected to the end 31 of the shaft 22 through a ball and socket assembly consisting of a ball 33 having an integral shaft 34 securely positioned within a sleeve 35 of an adjustment plate 36.
  • the socket portion of the ball and socket connection is formed in two sections at the end 31 of the shaft 22.
  • the first section 37 has an end face 38 abutting the end face 39 of the shaft 22 and a cylindrical wall portion 40 which is press fitted within the interior of the shaft as at 41.
  • the socket section 37 has a spherical surface 42 for receiving the ball 33 in a well understood manner.
  • the second section 43 of the socket assembly is formed similar to the first section 37 and is attached thereto by a bolt 44 which secures both sections to the shaft 22, as at 45, and which pivotally locks the ball portion 33 within the socket assembly.
  • the adjustment plate 36 which supports the shaft 34 of the ball and socket assembly is slidably mounted between a slide bracket 46 and raised faces 47 and 48 of the sleeve bracket 18.
  • the slide bracket 46 consists of slide strips 49 and 50 which are secured to the end face 51 of the sleeve bracket 18 by a plurality of bolts 52.
  • the slide strips 49, 50 have edges 53 and 54 which are maintained in a spaced relationship with the end face 51 to provide parallel grooves for receiving the outside edges 55 and 56 of the adjustment plate 36.
  • the adjustment plate 36 is provided with a boss 57, and the sleeve bracket 18 is provided with a lift lug 58.
  • the boss 57 and the lug 58 cooperate to provide a clamp for deflecting the shaft 22 about the fulcrum offered by the bearing 23.
  • the clamping action is accomplished by inserting an adjustment bolt 59 through the lug 58 and threadedly receiving the end portion 60 of the bolt 59 within an internally threaded bore 61 of the boss 57.
  • a locking nut 62 is provided in a well understood manner for firmly securing a given setting of the bolt 59.
  • the clamping action which is accomplished through the use of the adjustment bolt 59 is developed directly between the roll shell 17 and the inner rigidifying shaft 22.
  • the immediate components clamped are the end sleeve 18 and the adjustment plate 36.
  • the end sleeve 18 is securely mounted to the bearings 19 at the external surface of the roll sleeve 17.
  • the adjustment plate 36 is secured through the ball and socket connection directly to the end 31 of the shaft 22. Therefore, the tightening of the bolt 59 will exert a downward force on the end bracket 18 and an equal and opposite upward force on the inner shaft 22 in the vicinity of the ball and socket assembly, 33-35.
  • the ends 31 of the shaft 22 will travel in an arcuate path relative to the planar movement of the adjustment plate 36.
  • the provision for the ball and socket connection accommodates the arcuate movement of the shaft ends 31 to the planar movement of the adjustment plate 36 by allowing the end of the shaft to rotate freely about the vertical movement of the ball 33. Due to the accommodation provided by the ball and socket connection, the end adjustment can be made with a small crescent wrench or the like.
  • a lubrication feed line 63 is connected through a fitting 64 to the face 65 of the ball 33.
  • a channel 66 is formed centrally through the ball and shaft assembly 33 and 34 to a fitting 67 where lubrication may be applied under pressure as is well understood.
  • the lubrication line 63 feeds the bearing 23 through an opening 68 formed within the wall 69 of the inner shaft 22.
  • a slot 70 is provided within the complementary socket members 37 and 43, and a pin 71 is inserted through the slot 70 for being tightly received within an opening 72 in the ball 33.
  • the entire table roll may be raised or lowered within a machine stand 73.
  • the stand 73 is provided with vertical guide rails 74 and 75 which receive end flanges 76 and 77 of a facing plate 78 which is rigidly secured by way of guide means to the housing 1 8 by a plurality of bolts 79.
  • the elevation of the table roll itself therefore may be altered by sliding the entire assembly within the guide members 74 and 75.
  • the assembly may then be locked into position through the provision for locking bolts 80 and 81 which act jointly with a vertical positioning nut '82 in a well understood manner.
  • a locking pin 83 maintains the adjusted setting of the positioning nut 82.
  • a table roll for providing a dewatering support for a Fourdrinier wire comprising:
  • a roll shell for being positioned across a paper machine
  • a sleeve bracket fitted about the oposite ends of the roll shell and an end bearing disposed between the inner surface of each of said sleeve brackets and the outer surface of said roll shell for rotatably supporting the shell
  • a shaft means disposed axially within the roll shell and having an outer surface spaced inwardly of the inner surface of the roll shell,
  • At least one bearing operably mounted intermediate the shaft and the roll shell in the vicinity of the longitudinal center of the shaft
  • adjustment means connected between the shaft and the sleeve bracket for adjusting the radial positioning of the ends of the shaft relative to the bearing supported longitudinal center
  • said sleeve bracket carried on said end bearing so that the force of said adjustment means is transmitted directly between the shaft and roll shell.
  • adjustment means comprises an adjustment bracket mounted for slidable movement substantially perpendicular to the axis of said roll shell and pivotally connected to said shaft means whereby translation of said adjustment bracket causes a deflection of said shaft means under normal loading conditions of said roll shell, and
  • a lift lug mounted at said sleeve bracket and an adjustment bolt slidably received within said lift lug and threaded within said adjustment bracket for determining the radial location of said pivotally connected shaft means within said roll shell.
  • a table roll comprising:
  • a shaft means disposed axially within the roll shell and having an outer surface spaced inwardly of the inner surface of the roll shell,
  • bracket means including an adjustment means disposed adjacent to the longitudinal ends of the roll shell,
  • a first bearing means operably disposed between the bracket means and the roll shell
  • bracket means being carried directly on said bearing means
  • At least one second bearing means operably disposed intermediate the shaft and the roll shell in the vicinity of the longitudinal center of the shaft
  • bracket means and adjustment means coupled between the shaft and said first hearing means for adjusting the radial positioning of the ends of the shaft relative to the longitudinal center thereof
  • a table roll in accordance with claim 5 wherein said pivotal coupling comprises a ball and socket joint formed between the ends of the shaft and the bracket means.
  • a supporting roll assembly comprising:
  • bearing means operably disposed between the shaft means and the roll shell in the vicinity of the longitudinal center thereof
  • clamp means operably connected between the roll shell and the shaft for forcibly raising the ends of the shaft means relative to the ends of the roll shell and for developing an upward force on the roll shell at the central bearing means
  • said clamp means having an external bearing support for rotatably mounting said roll shell and an adjustment bracket having a ball and socket connection to said shaft means and an adjustment bolt for radially positioning the end of the shaft means within the roll shell to maintain substantial axial alignment of the roll shell under varying load conditions by generating .a compensating deflection of the shaft means, and adjustment means for varying the setting of the clamp means and for adjusting thereby the upward force on the roll shell in accordance with the loading conditions of the roll, said clamp means carried on said external hearing so that the force of the adjustment ball and socket is transferred directly between said shaft and said roll shell.

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  • Paper (AREA)
  • Rolls And Other Rotary Bodies (AREA)
US525184A 1966-02-04 1966-02-04 Table roll Expired - Lifetime US3443295A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52518466A 1966-02-04 1966-02-04

Publications (1)

Publication Number Publication Date
US3443295A true US3443295A (en) 1969-05-13

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
US525184A Expired - Lifetime US3443295A (en) 1966-02-04 1966-02-04 Table roll

Country Status (7)

Country Link
US (1) US3443295A (fr)
DE (1) DE1561644A1 (fr)
ES (1) ES337039A1 (fr)
FI (1) FI46196C (fr)
FR (1) FR1510583A (fr)
GB (1) GB1152803A (fr)
SE (1) SE334091B (fr)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672018A (en) * 1970-08-25 1972-06-27 Kleinewefers Soehne Maschf Guiding roller for calenders
US3778908A (en) * 1971-07-27 1973-12-18 Black Dawson Co Paper machine drying apparatus
US4030177A (en) * 1975-06-04 1977-06-21 Usm Corporation Controlled deflection roll
DE3024575A1 (de) * 1980-06-28 1982-01-28 J.M. Voith Gmbh, 7920 Heidenheim Presswalze mit durchbiegungsausgleich
US4325170A (en) * 1979-09-24 1982-04-20 Eduard Kusters Deflection controlled cylinder
US4470183A (en) * 1981-06-03 1984-09-11 Oy W/a/ rtsil/a/ Ab Roll construction
US4796452A (en) * 1986-03-26 1989-01-10 J. M. Voith Gmbh Setting device for adjusting the position of a roll
US5690264A (en) * 1996-02-29 1997-11-25 Eastman Kodak Company Apparatus and method for self-aligning contacting surfaces
US6524227B1 (en) * 1997-08-19 2003-02-25 Metso Paper, Inc. Roll that can be bent for a web-like material

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US242058A (en) * 1881-05-24 sohtjrmann
US1868860A (en) * 1927-12-08 1932-07-26 American Bicheroux Company Roller conveyer for glass plates
US3161125A (en) * 1961-02-15 1964-12-15 Beloit Iron Works Adjustable crown roll
US3168435A (en) * 1960-11-25 1965-02-02 Beloit Corp Method and means for mounting, driving and supporting rolls for endless moving bands
US3273492A (en) * 1963-10-16 1966-09-20 Beloit Corp Suction roll counter-deflector

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US242058A (en) * 1881-05-24 sohtjrmann
US1868860A (en) * 1927-12-08 1932-07-26 American Bicheroux Company Roller conveyer for glass plates
US3168435A (en) * 1960-11-25 1965-02-02 Beloit Corp Method and means for mounting, driving and supporting rolls for endless moving bands
US3161125A (en) * 1961-02-15 1964-12-15 Beloit Iron Works Adjustable crown roll
US3273492A (en) * 1963-10-16 1966-09-20 Beloit Corp Suction roll counter-deflector

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3672018A (en) * 1970-08-25 1972-06-27 Kleinewefers Soehne Maschf Guiding roller for calenders
US3778908A (en) * 1971-07-27 1973-12-18 Black Dawson Co Paper machine drying apparatus
US4030177A (en) * 1975-06-04 1977-06-21 Usm Corporation Controlled deflection roll
US4325170A (en) * 1979-09-24 1982-04-20 Eduard Kusters Deflection controlled cylinder
DE3024575A1 (de) * 1980-06-28 1982-01-28 J.M. Voith Gmbh, 7920 Heidenheim Presswalze mit durchbiegungsausgleich
US4470183A (en) * 1981-06-03 1984-09-11 Oy W/a/ rtsil/a/ Ab Roll construction
US4796452A (en) * 1986-03-26 1989-01-10 J. M. Voith Gmbh Setting device for adjusting the position of a roll
US5690264A (en) * 1996-02-29 1997-11-25 Eastman Kodak Company Apparatus and method for self-aligning contacting surfaces
US6524227B1 (en) * 1997-08-19 2003-02-25 Metso Paper, Inc. Roll that can be bent for a web-like material

Also Published As

Publication number Publication date
FI46196B (fr) 1972-10-02
FI46196C (fi) 1973-01-10
DE1561644A1 (de) 1970-10-01
FR1510583A (fr) 1968-01-19
SE334091B (fr) 1971-04-05
GB1152803A (en) 1969-05-21
ES337039A1 (es) 1968-01-16

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