DE553124C - Procedure for pulling off ball bearings - Google Patents

Procedure for pulling off ball bearings

Info

Publication number
DE553124C
DE553124C DEK119180D DEK0119180D DE553124C DE 553124 C DE553124 C DE 553124C DE K119180 D DEK119180 D DE K119180D DE K0119180 D DEK0119180 D DE K0119180D DE 553124 C DE553124 C DE 553124C
Authority
DE
Germany
Prior art keywords
bearing
roller
pulling
roll neck
bearings
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
DEK119180D
Other languages
German (de)
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.)
Fried Krupp Grusonwerk AG
Original Assignee
Fried Krupp Grusonwerk 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 Fried Krupp Grusonwerk AG filed Critical Fried Krupp Grusonwerk AG
Priority to DEK119180D priority Critical patent/DE553124C/en
Application granted granted Critical
Publication of DE553124C publication Critical patent/DE553124C/en
Expired legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/54Systems consisting of a plurality of bearings with rolling friction
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C13/00Rolls, drums, discs, or the like; Bearings or mountings therefor
    • F16C13/02Bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C35/00Rigid support of bearing units; Housings, e.g. caps, covers
    • F16C35/04Rigid support of bearing units; Housings, e.g. caps, covers in the case of ball or roller bearings
    • F16C35/06Mounting or dismounting of ball or roller bearings; Fixing them onto shaft or in housing
    • F16C35/062Dismounting of ball or roller bearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C19/00Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings
    • F16C19/34Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load
    • F16C19/38Bearings with rolling contact, for exclusively rotary movement with bearing rollers essentially of the same size in one or more circular rows, e.g. needle bearings for both radial and axial load with two or more rows of rollers
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C23/00Bearings for exclusively rotary movement adjustable for aligning or positioning
    • F16C23/06Ball or roller bearings
    • F16C23/08Ball or roller bearings self-adjusting
    • F16C23/082Ball or roller bearings self-adjusting by means of at least one substantially spherical surface
    • F16C23/086Ball or roller bearings self-adjusting by means of at least one substantially spherical surface forming a track for rolling elements
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16CSHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2322/00Apparatus used in shaping articles
    • F16C2322/12Rolling apparatus, e.g. rolling stands, rolls

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolls And Other Rotary Bodies (AREA)

Description

Die Erfindung betrifft die Anordnung von Rollen- oder Kugellagern, insbesondere für Walzwerke. Diese Lager werden in der Regel warm auf die Walzenzapfen aufgezogen oder aufgepreßt und bisher in der Weise von den Walzenzapfen abgezogen, daß zwischen dem Bund der Walze und der Labyrinthdichtung des Kugellagers Keile eingetrieben wurden, die dem Kugellager einen Axialschub erteilten und es so von dem Walzenzapfen lösten. Zum Eintreiben der Keile mußte aber ein Raum zwischen dem Walzenbund und den Labyrinthringen frei gelassen werden, was eine Verlängerung und eine erhöhte Inanspruchnahme des Walzenzapfens zur Folge hatte. Dieser Nachteil soll gemäß der Erfindung dadurch vermieden werden, daß. die Kugellager vor dem. Abziehen erwärmt werden. Dies kann in der Weise geschehen, daß ein Wärmemittel,The invention relates to the arrangement of roller or ball bearings, in particular for Rolling mills. These bearings are usually drawn onto the roll neck or while they are warm pressed on and so far removed from the roll neck in such a way that between the Collar of the roller and the labyrinth seal of the ball bearing wedges were driven, which gave the ball bearing an axial thrust and thus released it from the roll neck. To the Driving in the wedges had to leave a space between the roller collar and the labyrinth rings be left free, which resulted in an elongation and increased use of the roll neck. This Disadvantage is to be avoided according to the invention in that. the ball bearings to the. Peel to be heated. This can be done in such a way that a warming agent,

z. B. Dampf, in das Kugellagergehäuse geleitet wird. Das Lagergehäuse dehnt sich dann in radialer Richtung aus und löst sich dadurch von dem Walzenzapfen. Die Zuführung des Wärmemittels erfolgt zweckmäßig durch einen der beiden Labyrinthdichtungsringe. Das Wärmemittel durchströmt dann das Kugellagergehäuse und tritt am Ende des Walzenzapfens aus dem Gehäuse aus. Zweckmäßig werden, auf dem Umfang des Walzenzapfens verteilt, in Längsnuten des Walzenzapfens mehrere Langkeile gebettet, die an der dem Walzenbund zugekehrten Seite des Rollenlagergehäuses mit einer Nase hinter das Gehäuse fassen. An dem aus dem Rollenlagergehäuse herausragenden anderen Ende der Keile ist ebenfalls eine Nase angeordnet, an der Mittel zum Herausziehen der Keile aus den Nuten des Walzenzapfens angreifen können. Beim Herausziehen der Keile ziehen diese dann das Kugellagergehäuse vom Walzenzapfen ab, was nach Erwärmung des Lagers leicht möglich ist. Abgesehen von dem leichten Ausbau der Lager, bietet die Erfindung den Vorteil, daß der bisher für die Aufnahme der Keile notwendige freie Raum zwischen der Kugellagerdichtung und dem Walzenbund nicht mehr erforderlich ist, die Labyrinthdichtung also nahe an den Walzenbund heranrückt und infolgedessen der Walzenzapfen kürzer als bisher bemessen werden kann.z. B. steam, is passed into the ball bearing housing. The bearing housing expands then in the radial direction and thereby detaches itself from the roll neck. The feed of the heating medium is expediently carried out through one of the two labyrinth sealing rings. The heating medium then flows through the ball bearing housing and emerges from the housing at the end of the roll neck the end. Appropriately distributed on the circumference of the roll neck, in longitudinal grooves of the Roll neck embedded several long wedges, which on the roll collar facing side of the roller bearing housing with a nose reach behind the housing. On the other protruding from the roller bearing housing At the end of the wedges there is also a nose on which means for pulling out the Can attack wedges from the grooves of the roll neck. When pulling out the wedges then pull the ball bearing housing off the roll neck, which occurs after the Storage is easily possible. Apart from the easy expansion of the bearings, the invention offers the advantage that the free space previously required for receiving the wedges between the ball bearing seal and the Roller collar is no longer required, so the labyrinth seal is close to the roller collar moves closer and as a result the roll neck can be made shorter than before.

Auf der Zeichnung ist ein Ausführungsbeispiel des Erfindungsgegenstandes dargestellt.An exemplary embodiment of the subject matter of the invention is shown in the drawing.

Abb. ι zeigt das Rollenlager im Querschnitt undFig. Ι shows the roller bearing in cross section and

Abb. 2 einen Querschnitt durch die Walzenzapfen. Fig. 2 shows a cross section through the roll neck.

Auf dem Walzenzapfen 1 der Walze 2 sind die Rollenlager 3, 4 angeordnet. Zwischen dem Rollenlager 4 und der Walze 2 befindet sich die aus den beiden Ringen 5, 6 bestehende Labyrinthdichtung, die dicht an die Walze 2 heranreicht. Der Ring 5 ist mit einem Zuführungskanal 7 für ein Wärmemittel versehen, der in 'einen Ringkanal 8 mündet. Dieser ist an den Ringraum 4' des Kugellagers 4 angeschlossen. Der Dampf durchströmt den Innenraum des der Walze 2The roller bearings 3, 4 are arranged on the roll neck 1 of the roll 2. Between the roller bearing 4 and the roller 2 is the one consisting of the two rings 5, 6 Labyrinth seal that comes close to the roller 2. The ring 5 is provided with a supply channel 7 for a heating medium provided, which opens into an annular channel 8. This is to the annular space 4 'des Ball bearing 4 connected. The steam flows through the interior of the roller 2

benachbarten Lagers 4 und darauf den Innenraum des Lagers 3, an dessen Außenseite er austritt. Durch die Erwärmung dehnen sich die Lager 3, 4 in radialer Richtung etwas aus, was bei dem üblichen Einbau der Lager ohne weiteres möglich ist, und lösen sich dabei vom Walzenzapfen. Das Abziehen der Lager 3, 4 vom Zapfen 1 geschieht z. B. mittels der drei Keile 9, 10 und 11, die in Längsnuten des Zapfens 1 mit der Umfläche des Zapfens bündig liegen. An ihren inneren Enden sind die Keile 9, 10, 11 mit Nasen 12 (Abb. 1) versehen,, die hinter das Gehäuse 13 des Rollenlagers 4 fassen. Das äußere über den Walzenzapfen 1 herausragende Ende der Keile 9, 10, 11 ist ebenfalls mit einer Nase 14 versehen. Sollen die Lager 3, 4 von dem Zapfen 1 abgezogen werden, so wird auf die Verlängerung 16 des Walzenzapfens 1 eine Büchse 17 geschoben. Die am Umfang dieser Büchse 17 angeordneten Ansätze 15 können nach Art eines Bajonettverschlusses zum Eingriff mit den Nasen 14 der Keile 9, 10, 11 gebracht werden. Die Nabe 18 der Büchse 17 trägt einen sich gegen die Stirnfläche der Zapfenverlängerung abstützenden Gewindebolzen 19. Durch entsprechendes Drehen des Bolzens 19 wird dann die Büchse axial nach außen verschoben und dadurch die erwärmten Lager 3, 4 mittels der Keile 9, 10, 11 von dem Walzenzapfen 1 abgezogen.adjacent bearing 4 and then the interior of the bearing 3, on the outside of which he exit. As a result of the heating, the bearings 3, 4 expand somewhat in the radial direction from what is easily possible with the usual installation of the bearings, and solve in the process from the roll neck. The removal of the bearings 3, 4 from the pin 1 is done, for. B. by means of the three wedges 9, 10 and 11, which are in longitudinal grooves of the pin 1 with the peripheral surface of the pin are flush. The wedges 9, 10, 11 with lugs 12 are at their inner ends (Fig. 1) provided, behind the housing 13 of the roller bearing 4. The outer end of the protruding over the roll neck 1 Wedges 9, 10, 11 also have a nose 14 Mistake. If the bearings 3, 4 are to be withdrawn from the pin 1, the Extension 16 of the roll neck 1 a sleeve 17 pushed. The at the scope of this Bushing 17 arranged approaches 15 can in the manner of a bayonet lock for engagement with the noses 14 of the wedges 9, 10, 11 to be brought. The hub 18 of the sleeve 17 carries one against the face of the Pin extension supporting threaded bolt 19. By turning the accordingly Bolt 19 is then moved axially outward, the bushing and thereby the heated Bearing 3, 4 by means of the wedges 9, 10, 11 of withdrawn from the roll neck 1.

Das Abziehen der Rollenlager kann natürlich auch in anderer Weise erfolgen. Wesentlich für die Erfindung ist nur, daß die Lager vor dem Abziehen erwärmt werden.The roller bearings can of course also be withdrawn in other ways. Essential for the invention is only that the bearings are heated before pulling.

Claims (3)

Patentansprüche:Patent claims: 1. Verfahren zum Abziehen von Kugellagern von ihren Tragzapfen, dadurch gekennzeichnet, daß in das Innere des Lagers ein gas- oder dampfförmiges Wärmemittel eingeführt wird, um nach der durch das Wärmemittel bewirkten Ausdehnung des Lagers in radialer Richtung das Lager leicht von dem Tragzapfen abziehen zu können.1. A method for pulling ball bearings off their trunnions, characterized in that that in the interior of the camp a gaseous or vaporous heating medium is introduced to the bearing after the expansion of the bearing in the radial direction caused by the heating medium easy to pull off the trunnion. 2. Vorrichtung zur Ausübung des Verfahrens nach Anspruch 1, dadurch gekennzeichnet, daß der äußere der beiden zwisehen Rollenlager und Walze angeordneten Dichtungsringe (5, 6) mit einem Zu-2. Device for performing the method according to claim 1, characterized in that that the outer of the two is arranged between roller bearings and roller Sealing rings (5, 6) with a feed ' leitungskanal (7) für das Wärmemittel versehen ist, der in einen mit dem Innenraum (4') des Kugellagers (4) in Verbindung stehenden Ringkanal (B) mündet.'Line channel (7) is provided for the heating medium, which is in one with the interior (4 ') of the ball bearing (4) connected annular channel (B) opens. 3. Vorrichtung zum Abziehen eines gemäß dem Verfahren nach Anspruch 1 erwärmten Lagers, dadurch gekennzeichnet, daß in Längsnuten des Walzenzapfens (1) mit der Umfläche des Zapfens bündig liegende Keile (9, 10, n) angeordnet sind, die sowohl an ihrem inneren als auch an ihrem äußeren, aus dem Rollenlager hervorragenden Ende mit einer Nase (12 bzw. 14) versehen sind, wobei die inneren Nasen (12) hinter das Kugellagergehäuse (13) fassen und die äußeren Nasen (14) als Angriffsmittel beim Abziehen des Lagers dienen.3. Device for removing a heated according to the method according to claim 1 Bearing, characterized in that in longitudinal grooves of the roll neck (1) wedges (9, 10, n) are arranged flush with the peripheral surface of the pin, which protrude from the roller bearing on both their inner and outer surfaces End with a nose (12 or 14) are provided, the inner Grasp the lugs (12) behind the ball bearing housing (13) and the outer lugs (14) serve as a means of attack when pulling the bearing. Hierzu 1 Blatt Zeichnungen1 sheet of drawings
DEK119180D 1931-03-01 1931-03-01 Procedure for pulling off ball bearings Expired DE553124C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK119180D DE553124C (en) 1931-03-01 1931-03-01 Procedure for pulling off ball bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK119180D DE553124C (en) 1931-03-01 1931-03-01 Procedure for pulling off ball bearings

Publications (1)

Publication Number Publication Date
DE553124C true DE553124C (en) 1932-06-24

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ID=7244273

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK119180D Expired DE553124C (en) 1931-03-01 1931-03-01 Procedure for pulling off ball bearings

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DE (1) DE553124C (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212780A1 (en) * 2002-03-22 2003-10-02 Skf Ab Withdrawal tool for removal of roller bearing from end of roller has two diametrically opposed grooves in circular-section rod accommodating rocking levers with shaped surfaces engaging bearings
WO2019183410A1 (en) * 2018-03-21 2019-09-26 Saudi Arabian Oil Company Systems and methods for steam ring heating for bearing removal from shaft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10212780A1 (en) * 2002-03-22 2003-10-02 Skf Ab Withdrawal tool for removal of roller bearing from end of roller has two diametrically opposed grooves in circular-section rod accommodating rocking levers with shaped surfaces engaging bearings
WO2019183410A1 (en) * 2018-03-21 2019-09-26 Saudi Arabian Oil Company Systems and methods for steam ring heating for bearing removal from shaft
US20190291251A1 (en) * 2018-03-21 2019-09-26 Saudi Arabian Oil Company Systems and methods for steam ring heating for bearing removal from shaft
US10919135B2 (en) 2018-03-21 2021-02-16 Saudi Arabian Oil Company Systems and methods for steam ring heating for bearing removal from shaft

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