EP2464878A1 - Fixation de palier de laminoir - Google Patents

Fixation de palier de laminoir

Info

Publication number
EP2464878A1
EP2464878A1 EP10745159A EP10745159A EP2464878A1 EP 2464878 A1 EP2464878 A1 EP 2464878A1 EP 10745159 A EP10745159 A EP 10745159A EP 10745159 A EP10745159 A EP 10745159A EP 2464878 A1 EP2464878 A1 EP 2464878A1
Authority
EP
European Patent Office
Prior art keywords
threaded nut
fastening system
bearing
roll neck
threaded
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.)
Withdrawn
Application number
EP10745159A
Other languages
German (de)
English (en)
Inventor
Karl Keller
Kurt Scheffe
Arndt Schlösser
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.)
SMS Siemag AG
Original Assignee
SMS Siemag AG
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 SMS Siemag AG filed Critical SMS Siemag AG
Publication of EP2464878A1 publication Critical patent/EP2464878A1/fr
Withdrawn legal-status Critical Current

Links

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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00—Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04—Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06—Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/063—Fixing them on the shaft
    • 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
    • F16C13/00—Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02—Bearings
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21B—ROLLING OF METAL
    • B21B31/00—Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
    • B21B31/07—Adaptation of roll neck 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
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/10—Application independent of particular apparatuses related to size
    • F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
    • 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
    • F16C2322/00—Apparatus used in shaping articles
    • F16C2322/12—Rolling apparatus, e.g. rolling stands, rolls

Definitions

  • the invention is directed to a mounting system of a roller bearing comprising a bearing unit with a roller journal mounted therein in a roller journal bearing and a threaded nut engaging in a thread formed on the roller journal or a clamping anchor fastened therein and the bearing unit being mounted on the roller journal.
  • Roller bearings are known in practice which comprise a bearing unit for a back-up roll of a roll stand having a chock with a roll neck bearing therein releasably secured to a roll neck of the back-up roll, a clamp anchor coaxially mounted in an end region of the stud, and a Cover disc comprises axially slidably mounted on the clamping anchor and is supported against a screw-threaded nut on the one hand and the roll neck bearing on the other.
  • Such Walzenla- ger be sold, for example under the brand MORGOIL ®. All of these roller bearings have a fastening system and / or element with which the roller journal bearing is fixed to the roller, which is a support roller of a rolling stand.
  • the device known therefrom consists of a bearing unit which comprises a chock with a shaft journal bearing arranged therein.
  • the bearing unit is arranged on a journal of the support roller.
  • a tension anchor which extends in the axial direction of the roller, attacks the pin.
  • On the clamping anchor an axially displaceable cap disc is mounted, which is supported on the one hand on a schraubbewegbaren on the clamping anchor nut and on the other hand on the bearing unit.
  • the invention is therefore an object of the invention to provide a solution that improves the self-locking rotation of a roll neck bearing holding in position threaded nut.
  • this object is achieved in that on the threaded nut a flexurally movable portion is formed relative to the rest of the nut in an adjacent thread in the other threaded engagement of the threaded nut oppositely acting surface pressure generating position movable, in particular bendable, is.
  • both threaded parts of the threaded nut engage uniformly and in the same manner with the external thread formed on the clamping anchor or the roll neck, wherein the mutually engaging flank sides of the two interlocking threads on one side the threads form a surface pressure.
  • the bending-movable portion is relative to the rest of the mother, for example, moved to this remaining part, in particular to this part is bent, characterized with the threaded portion of this subsection in the associated and adjacent portion of the external thread of the clamping anchor or the roll neck such Relativbewe- movement of the mutually associated threads exerted that in this subsection now the opposite side of the thread opposite flank sides are moved into a, consequently also oppositely acting surface pressure.
  • this rotation lock is supported by means of a hydraulic tensioning device that can be temporarily coupled to the roller bearing, in that then the tensioning anchor is under a prestress which holds the threaded nut firmly against the nut Roll neck journal bearing or a bearing unit, in particular a capstan pulls.
  • an offset of the internal thread in the sense of a change in position of the pitch of the internal thread of the threaded nut is effected at least in the transition region between these two elements.
  • the opposite flank-loading surface pressure may if appropriate also be present only over a part of the longitudinal extension of the threaded part to be assigned to the subsection.
  • the bending-movable portion extends over a partial circumferential region of the nut.
  • a particularly advantageous possibility for forming the flexurally movable portion is according to a further development of the invention is that the bending movable portion is a circular ring segment disc, which is spaced by a transverse, in particular perpendicular, formed to the central longitudinal axis of the threaded nut slot from the adjacent region of the threaded nut.
  • the flexurally movable section can be relatively easily produced by introducing a vertical cut into a threaded nut and thus forming a disk in the form of a circular ring segment over a partial circumferential area of the threaded nut, which is then bendable relative to the remaining part of the threaded nut.
  • the slot In order to be able to form a substantial area of the internal thread region to be assigned to the subsection, it is furthermore expedient for the slot to extend at least to the level of the thread formed on the roll neck or the clamping anchor, which the invention also provides. However, in order to be able to apply a particularly large range of thread surface with the oppositely acting surface pressure, it is particularly advantageous in accordance with a further embodiment of the invention for the slot to extend beyond the diameter of the roll neck or the tension anchor.
  • particularly advantageous dimensions of the flexurally movable partial section are present when the flexurable partial section has a length corresponding to 5% to 30% of the total length of the threaded nut and if the flexurable partial section forms a circular ring segment disc which extends over a circumference or an angle section extends between 180 ° and 300 ° relative to the outer diameter of the threaded nut.
  • the invention further provides that at least one screw is guided through the subsection, which engages in a threaded bore arranged in alignment in the adjacent region of the threaded nut. It is then also advantageous if the screw, in particular by gluing the thread or by means of a wire lock, is secured against a loosening twisting.
  • the measure according to the invention is of particular advantage in a wafer bearing in which the clamping anchor is arranged coaxially secured against rotation in an end region of the roll neck.
  • the partial section is formed on the side facing away from the roller journal bearing of the threaded nut.
  • the invention also provides that the roll neck is part of a support roll, since the fastening system according to the invention can be used in particular in roller bearings of back-up rolls of hot or cold rolling mills.
  • FIG. 1 is a schematic cross-sectional view of a roller bearing equipped with the fastening system according to the invention
  • FIG. 2 shows a schematic cross-sectional view of a clamping anchor with threaded nut for explaining the effect of a flexurally movable partial section of the threaded nut and in FIG Fig. 3 is a schematic representation of a sectional view through a
  • Threaded nut dividing slot Threaded nut dividing slot
  • a roll neck 1 of a back-up roll of a hot or cold rolling mill or other application of a roll neck bearing can be seen.
  • a chock 4 of the roller bearing is mounted with a pin bushing 2 of a bearing unit 3.
  • the roll neck 1 has a central, axially extending bore with an internal thread into which a clamping anchor 5 is screwed in a rotationally fixed manner to a first external thread.
  • a special thread can be used, through which a uniform distribution of tensile forces on the individual threads is achieved.
  • a cap-shaped cap disc 6 is rotatably arranged and axially displaceable, wherein the edge 7 of the cup-shaped cap disc 6 is supported on a roller journal bearing 8, here a thrust bearing, the bearing unit 3.
  • a roller journal bearing 8 here a thrust bearing
  • the bearing unit 3 At a protruding from the roll neck 1 end of the clamping anchor 5, this has a second external thread 15, on which a threaded nut 9 is screwed with its internal thread 16.
  • the threaded nut 9 has an annular cross section and an internal thread 16. Through a slot 11 or cut the threaded nut 9 is divided into a flexurally movable portion 9a and a remaining part 9b.
  • the flexible part 9a of the threaded nut 9, which is arranged in the installed state shown in Figures 1 and 2 at the outer end of the clamping armature 5 is formed by the slot 11 or the recess in the region of the slot 11 from the remaining part 9b spaced.
  • the slot 11 or recess is further formed in such an area at least substantially perpendicular to the central longitudinal axis of the threaded nut 9 and designed that the flexurally movable portion 9a via a Partial circumferential region of the threaded nut 9 in the form of a circular ring segment disc extends.
  • the contactor 11 or the incision is at least up to the level of formed on the clamping anchor 5 and with the threaded nut 9 engaged external thread 15, but advantageously as shown in FIG. 1 executed in such a length that it extends over the entire Diameter of the clamping armature 5 in the region of the threaded nut 9 is engaged with external thread 15 extends. As can be seen from FIG. 1 and FIG.
  • the flexible part 9a extends over a length which is between 5% and 30% of the total length or depth of the threaded nut 9.
  • the slit 11 or cut is made in such a length or depth as to separate a partial peripheral portion of the nut 9 as the circular movable segment 9a forming annular segment disc extending over a circumference between 180 ° and about 300 ° with respect to the outer diameter of the nut 9 extends (see Fig. 3).
  • the width of the slot 11 or notch is constant and is for example between 5 and 25 mm.
  • the slot 11 is made for example by means of a saw, milling machine or a laser.
  • FIG. 3 shows a section through a slot 11 as a partial view of a plan view of a partial section 9b.
  • the voltage applied to the slot 11 Surface is shown in a hatched area and the sectional area through the connecting piece 9c is shown hatched.
  • the slot 11 extends over a circumference or angle portion of 300 ° relative to the outer diameter of the threaded nut 9.
  • the remaining connector extends over a circumference or angle portion of 60 °, evenly by 30 ° on both sides of a leading through the center 17
  • Manufacturing technology is along the connecting piece 9c delimiting dash-dotted line 19 initially introduced a hole in the threaded nut 9, before then exactly to this hole the slot 11 is cut into the threaded nut 9 ,
  • aligned through holes 13 are parallel to the central longitudinal axis of the threaded nut formed in the aligned extension in the opposite region of the remaining part 9b of the threaded nut 9 holes 14 are formed with internal thread.
  • Through each through hole 13 each having a screw head screw 12 is guided and screwed into the associated bore 14.
  • the number of screws 12 depends on which partial circumferential area of the threaded nut 9 the partial section 9a extends.
  • FIG. 1 also shows a cover 10 which protects the journal region of the bearing unit 3 during operation and which is detachably or pivotally mounted on the roll neck 1 for mounting or removal of the bearing unit 3.
  • the threaded nut 9 is a hydraulic biasing tool, as described for example in WO 2005/021175 A1, temporarily assignable.
  • This biasing tool works as follows: The biasing tool is supported on the clamping anchor 5 and moves the capstan 6 against the Waiz- zenzapfenlager 8. The pin bushing 2 is pushed onto the pin 1. If the journal bushing 2 is firmly seated on the roll neck 1, then still further ter pressure on the biasing tool, so that the clamping anchor extends elastically. After reaching a predetermined elastic strain the nut 9 is made by hand against the capstan 6.
  • the tensioning bolt 5 connected to the roll neck 1 pulls the roll neck bearing 8 with the correspondingly adjusted elastic prestressing of the tension anchor 5 onto the roll neck 1 via the threaded nut 9 and the slip disk 6.
  • the pretensioning tool is removed and the screws 12 are tightened such that the flexurally movable portion 9a is moved to the spaced opposite remaining portion 9b of the threaded nut 9 and thereby bent by a certain amount.
  • the oppositely acting surface pressure then arises in the region of the threads 15 and 16 assigned to the subsection 9a.
  • the rotation-proof arrangement of the threaded nut 9 caused thereby on the external thread of the clamping anchor 5 by means of a surface pressure effecting a permanent frictional engagement thus comprises two modes of operation.
  • the prestressed tensioning anchor 5 presses the threaded nut 9 against the capping disk 6, whereby the flanks 15a of the external thread 15 of the tensioning anchor 5 and the flanks 16a of the internal thread 16 of the threaded nut 9 in the remaining part 9b in FIG create a friction causing surface pressure together.
  • a bending-movable partial section 9a is formed on the threaded nut 9, which moves relative to the remaining part 9b of the threaded nut 9 in a position adjacent to the thread engagement of the threaded nut 9 oppositely acting surface pressure (15b, 16b) generating position in the adjacent thread, in particular is special bendable.
  • the threaded nut 9 is firmly clamped on the clamping anchor 5 via the threads of the mutually engaging thread flanks 15a, 16a on the one hand and 15b, 16b on the other hand and secured secured against rotation.
  • Each of a surface pressure with frictional training areas of intermeshing threaded threads are shown in bold in FIG.
  • the screws 12 are secured by means of adhesive in the respective bore 14 or by wire against rotation. During the tightening of the screws 12 there is neither the risk of twisting the threaded nut 9 already held with prestressing on the clamping anchor 5, nor is such twisting necessary to allow the screws 12 to be screwed in.
  • the screws 12 are released, the clamping armature 5 is stretched by means of the biasing tool again and then the nut 9 is released and removed. The hydraulic unit is then depressurized and converted to remove the roll neck bearing or the storage unit.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)
  • Mounting Of Bearings Or Others (AREA)

Abstract

L'invention concerne un système de fixation d'un palier de laminoir comprenant une unité de palier (3) comportant un tourillon (1) logé dans un palier de tourillon (8) et un écrou fileté (9) s'engageant dans un filetage formé sur le tourillon (1) ou un boulon d'ancrage (5) fixé dans celui-ci et bloquant l'unité de palier (3) sur le tourillon (1). L'objectif de cette invention est d'améliorer la fonction de blocage en rotation autobloquant de l'écrou fileté maintenant le palier en position. A cet effet, une section partielle (9a) mobile en flexion est formée sur l'écrou fileté (9), cette section partielle pouvant être déplacée, notamment fléchie, par rapport à la partie restante (9b) de l'écrou fileté (9), pour passer dans une position dans laquelle les flancs (15b, 16b) du filet adjacent subissent une pression en surface opposée à celle exercée dans le reste du filetage en prise de l'écrou fileté (9).
EP10745159A 2009-08-12 2010-08-10 Fixation de palier de laminoir Withdrawn EP2464878A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102009037273A DE102009037273A1 (de) 2009-08-12 2009-08-12 Walzenlagerbefestigung
PCT/EP2010/004881 WO2011018205A1 (fr) 2009-08-12 2010-08-10 Fixation de palier de laminoir

Publications (1)

Publication Number Publication Date
EP2464878A1 true EP2464878A1 (fr) 2012-06-20

Family

ID=43035630

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10745159A Withdrawn EP2464878A1 (fr) 2009-08-12 2010-08-10 Fixation de palier de laminoir

Country Status (6)

Country Link
US (1) US20120134617A1 (fr)
EP (1) EP2464878A1 (fr)
CN (1) CN102472316A (fr)
DE (1) DE102009037273A1 (fr)
RU (1) RU2490522C1 (fr)
WO (1) WO2011018205A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927515A1 (fr) * 2014-03-31 2015-10-07 Siemens Aktiengesellschaft Écrou et turbine à gaz associée

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2980354A1 (fr) * 2014-07-30 2016-02-03 Siemens Aktiengesellschaft Rotor d'une turbine à gaz et turbine à gaz associée
GB2537378B (en) 2015-04-14 2017-04-26 Primetals Tech Ltd Bearing system and method
US20170358968A1 (en) * 2016-06-13 2017-12-14 Alstom Renewable Technologies Supporting device and method for supporting winding coils in a wind turbine generator
DE102017216547A1 (de) * 2017-09-19 2019-03-21 Sms Group Gmbh Walzgerüst
DE102018206688A1 (de) 2017-10-18 2019-04-18 Sms Group Gmbh Vorrichtung zum Ankuppeln einer Kühlmittelzufuhr an eine Walze
RU195826U1 (ru) * 2019-11-29 2020-02-06 Общество с ограниченной ответственностью «РТФ» Монтажный элемент подшипника
WO2021232191A1 (fr) * 2020-05-18 2021-11-25 Abb Schweiz Ag Système de verrouillage et procédé de fabrication de celui-ci, ensemble palier et robot comprenant celui-ci

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DE1675685B1 (de) * 1962-12-03 1970-01-29 Rudolf Spieth Gewindering
US5609456A (en) * 1995-02-21 1997-03-11 The Timken Corporation Locking nut
WO2005073570A1 (fr) * 2004-01-22 2005-08-11 Spieth-Maschinenelemente Gmbh & Co. Kg Bague filetee

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US2694430A (en) * 1953-07-09 1954-11-16 Goodman Mfg Co Lock nut
BE551034A (fr) * 1955-07-16
US3080199A (en) * 1961-09-01 1963-03-05 Morgan Construction Co Integral bearing mounting and dismounting means
FR1371833A (fr) * 1963-06-14 1964-09-11 Nouveautes Mecaniques Electr N écrou indesserrable
US3535008A (en) * 1968-12-05 1970-10-20 Gulf & Western Ind Prod Co Rolling mill roll bearing retainer
JPS4943855B1 (fr) * 1970-04-17 1974-11-25
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US4286830A (en) * 1979-09-24 1981-09-01 Morgan Construction Company Combination roll neck and bearing assembly
US4531847A (en) * 1983-11-28 1985-07-30 The United States Of America As Represented By The Secretary Of The Army Shaft-mounted equipments
JPH0544576Y2 (fr) * 1990-06-20 1993-11-12
US5636549A (en) * 1993-12-22 1997-06-10 Hughes Electronics Wire wound threaded elements including lead screws, roller not assemblies and process
US5795037A (en) * 1994-03-01 1998-08-18 Hub Nut Corporation Controlled position axle nut system and method to preload tapered roller bearings
US6425690B1 (en) * 2000-09-26 2002-07-30 Reliance Electric Technologies, Llc Positive lock for bearing subassembly and adjusting nut kit
DE10335527A1 (de) 2003-07-31 2005-02-17 Sms Demag Ag Vorrichtung zum Auf- und Abziehen einer Stützwalzen-Lagereinheit
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1675685B1 (de) * 1962-12-03 1970-01-29 Rudolf Spieth Gewindering
US5609456A (en) * 1995-02-21 1997-03-11 The Timken Corporation Locking nut
WO2005073570A1 (fr) * 2004-01-22 2005-08-11 Spieth-Maschinenelemente Gmbh & Co. Kg Bague filetee

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2011018205A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2927515A1 (fr) * 2014-03-31 2015-10-07 Siemens Aktiengesellschaft Écrou et turbine à gaz associée

Also Published As

Publication number Publication date
RU2490522C1 (ru) 2013-08-20
US20120134617A1 (en) 2012-05-31
DE102009037273A1 (de) 2011-02-17
WO2011018205A1 (fr) 2011-02-17
CN102472316A (zh) 2012-05-23

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