DE827276C - Device for preventing the rolling bodies from falling out in rolling bearings, in particular needle bearings - Google Patents

Device for preventing the rolling bodies from falling out in rolling bearings, in particular needle bearings

Info

Publication number
DE827276C
DE827276C DEP2856A DEP0002856A DE827276C DE 827276 C DE827276 C DE 827276C DE P2856 A DEP2856 A DE P2856A DE P0002856 A DEP0002856 A DE P0002856A DE 827276 C DE827276 C DE 827276C
Authority
DE
Germany
Prior art keywords
shaft
bearing
sleeve
bearings
rolling
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
DEP2856A
Other languages
German (de)
Inventor
Otto Irion
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Priority to DEP2856A priority Critical patent/DE827276C/en
Application granted granted Critical
Publication of DE827276C publication Critical patent/DE827276C/en
Expired 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
    • F16C21/00—Combinations of sliding-contact bearings with ball or roller bearings, for exclusively rotary movement
    • 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
    • F16C17/00—Sliding-contact bearings for exclusively rotary movement
    • F16C17/04—Sliding-contact bearings for exclusively rotary movement for axial load only
    • F16C17/08—Sliding-contact bearings for exclusively rotary movement for axial load only for supporting the end face of a shaft or other member, e.g. footstep 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
    • F16C19/00—Bearings with rolling contact, for exclusively rotary movement
    • F16C19/22—Bearings 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
    • F16C19/44—Needle bearings
    • F16C19/46—Needle bearings with one row or needles
    • F16C19/466—Needle bearings with one row or needles comprising needle rollers and an outer ring, i.e. subunit without inner ring
    • 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
    • F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
    • F16C41/04—Preventing damage to bearings during storage or transport thereof or when otherwise out of use
    • F16C41/045—Devices for provisionally retaining needles or rollers in a bearing race before mounting of the bearing on a 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
    • F16C27/00—Elastic or yielding bearings or bearing supports, for exclusively rotary movement
    • F16C27/08—Elastic or yielding bearings or bearing supports, for exclusively rotary movement primarily for axial load, e.g. for vertically-arranged shafts
    • 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
    • F16C35/067—Fixing them in a housing

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rolling Contact Bearings (AREA)

Description

Die Erfindung bezieht sich auf eine Einrichtung zum Verhindern des Herausfallens der Wälzkörper bei Wälzlagern, insbesondere Nadellagern; deren Wälzkörper ohne ein verbindendes Zwischenglied (Käfig) in den von der Welle und der zylindrischen Innenwand des Lagers gebildeten Ringraum eingesetzt sind. Bei den üblichen käfiglosen Nadellagern besteht der Nachteil, daß beim Entferti.2n der Welle, beispielsweise bei gelegentlichen Instandsetzungsarbeiten, mindestens einzelne Wälzkörper unbemerkt aus dem ihnen zugewie@setien Ringraum herausfallen. Für die wieder eingesetzte Welle ist dann keine genügende Auflagerung mehr vorhanden, außerdem können durch die losen Wälzkörper Teile der Maschinen bei ihrer Wiederingangsetzung beschädigt werden. Aber selbst wenn das Herausfallen einzelner Wälzkörper rechtzeitig bemerkt wird, ist das Wiedereinsetzen dieser Lagerteile insbesondere an sc'hlec'ht zugänglichen Stellen schwierig und zeitraubend.The invention relates to a device for preventing the Falling out of the rolling elements in rolling bearings, especially needle bearings; their rolling elements without a connecting intermediate member (cage) in that of the shaft and the cylindrical Inner wall of the bearing formed annulus are used. With the usual cageless Needle roller bearings has the disadvantage that when Entferti.2n the shaft, for example during occasional repair work, at least individual rolling elements go unnoticed fall out of the annular space assigned to them. For the re-installed shaft there is then no longer sufficient support, and the loose Rolling element parts of the machines are damaged when they are restarted. But even if the falling out of individual rolling elements is noticed in good time, the reinsertion of these bearing parts is particularly accessible at sc'hlec'ht Make difficult and time consuming.

Diese Nachteile werden vermieden durch einen mit der Welle längs verschiebbaren zylindrischen Füllkörper, der sich außerhalb des Lagers befindet, solange die Welle ins Lager eingeschoben ist, der jedoch beim Entfernen der Welle zwangsläufig in den Lagerhohlraum gelangen muß, wo er zur Ab- stützung der Wälzkörper verbleiben kann, bis er durch die wieder ins Lager eingeführte Welle in seine Ausgangsstellung außerhalb des Lagers werschoben wird. Der Füllkörper besteht zweckmäßigerweise aus einer Hülse, die einen dein Wellendurchmesser entsprechenden Mantelteil aufweist, und die unter der Einwirkung einer in den Hülsenhohlraum hineinragenden Feder steht. Eine solche Hülse kann, insbesondere wenn ihre dein Wellenende zugekehrte Seitenfläche mit einer zur Wellenachse gleichachsigen Erhebung versehen wird, das Wälzlager zu einem Spurlager ergänzen. Eine besonders geringe Spurlagerreibung kann dadurch erzielt werden, daß in die Hülsenwand eine mindestens teilweise aus dieser Wand herausragende Kugel eingesetzt wird.These disadvantages are avoided by a longitudinally with the shaft displaceable cylindrical filling bodies, which is located outside of the bearing, as long as the shaft is inserted into the bearings, however, must pass necessarily in the bearing cavity upon removal of the shaft, where it support for the waste of the rolling elements can remain until it is pushed back into its starting position outside of the bearing by the shaft reinserted into the bearing. The filler body expediently consists of a sleeve which has a jacket part corresponding to your shaft diameter and which is under the action of a spring protruding into the sleeve cavity. Such a sleeve can, especially if its side face facing the shaft end is provided with an elevation coaxial to the shaft axis, supplement the roller bearing to form a thrust bearing. A particularly low thrust bearing friction can be achieved in that a ball protruding at least partially from this wall is inserted into the sleeve wall.

Ein Ausführungsbeispiel des Erfindungsgegenstandes ist in .der Zeichnung im Längsschnitt dargestellt.An exemplary embodiment of the subject matter of the invention is shown in the drawing shown in longitudinal section.

Bei diesem Ausführungsbeispiel ist an dem mit einem Lager für den Wellenzapfen i zu versehenden Gehäuseteil oder Gestell 2 eine Lagerbuchse 3 angebracht. In einem Ringraum, der von einer Innenlauffläche 4 dieser Buchse, dem Wellenzapfen i, einer Ringschulter 5 und einer Ringscheibe 6 begrenzt ist, befinden sich nadelartig gestaltete Wälzkörper 7. Um diese Wälzkörper auch dann in dem ihnen zugewiesenen Ringraum zu halten, wenn der Wellenzapfen gelegentlich einer Instandsetzung des betreffenden Geräts entfernt werden muß, ist eine Haltevorrichtung vorgesehen. Diese Vorrichtung besteht aus einer zylindrischen Hülse 8, deren Durchmesser gleich oder etwas kleiner ist als der Durchmesser des Wellenzapfen und die durch eine am Teil 2 abgestützte und vorwiegend im Hülsenhohlraum untergebrachte Schraubenfeder 9 gegen die Stirnfläc=he des @@'ellenzapfens i gedrückt wird. Zur Verminderung der Reibung ist in der Mitte der der Wellenstirnfläche zugekehrten Seitenwand der Hülse 8 eine teilweise aus dieser Wand herausragende Kugel io eingesetzt. Beim Entfernen des Wellenzapfens gelangt die Hülse unter der Wirkung der sich teilweise entspannenden Federg in den Lagerhohlraum und 'hält die nadelförmigen Wälzkörper 7 in dein ihnen zugewiesenen Ringraum lärigs der Innenfläche 4. Der an der Hülse 8 angebrachte Bund i i liegt dabei an der Ringscheibe 6 an. Durch zweckentsprechende Bemessung der Feder 9 kann erreicht werden, daß das Wälzlager zu einem Spurlager ergänzt wird, das die entgegen der Wirkungsrichtung der Feder auftretenden Axialschubkräfte aufnimmt.In this embodiment, the one with a bearing for the Shaft journal i to be provided housing part or frame 2 a bearing bush 3 attached. In an annular space that is formed by an inner running surface 4 of this bushing, the shaft journal i, an annular shoulder 5 and an annular disk 6 are located like a needle designed rolling elements 7. To these rolling elements also then in the assigned to them To keep the annulus when the shaft journal occasionally needs to be repaired device concerned must be removed, a holding device is provided. These Device consists of a cylindrical sleeve 8, the diameter of which is equal to or is slightly smaller than the diameter of the shaft journal and the one on the part 2 supported and mainly housed in the sleeve cavity helical spring 9 against the end face of the elliptical pin i is pressed. To reduce friction is in the middle of the shaft end face facing side wall of the sleeve 8 a Ball partially protruding from this wall inserted. When removing the Shaft journal enters the sleeve under the action of the partially relaxing Federg into the bearing cavity and 'holds the needle-shaped rolling elements 7 in your them assigned annulus lärigs the inner surface 4. The collar attached to the sleeve 8 i i is in contact with the annular disk 6. By appropriately dimensioning the Spring 9 can be achieved that the roller bearing is supplemented to a thrust bearing, which absorbs the axial thrust forces occurring against the direction of action of the spring.

Claims (5)

PATENTANSPRCCHE: i. Einrichtung zum Verhindern des Herausfallens der Wälzkörper bei Wälzlagern, insbesondere Nadellagern, deren Wälzkörper ohne ein verbindendes Zwischenglied (Käfig) in den von der Welle und der zylirndrischen Innenwand des Lagers gebildeten Ringraum eingesetzt sind, ge'kennzeic'hnet durch einen mit der Welle längs N-erscliiebbaren zylindrischen Füllkörper, dar sich außerhalb des Lagers befindet, solange die Welle ins Lager eingeschoben ist, der jedoch beim Entfernen der Welle aus dem Lager zwangsläufig in den Lagerhohlraum gelangen muß, wo er zur :1listützung der Wälzkörper so lange verbleiben kann, bis er durch die wieder ins Lager eingeführte Welle in seine Ausgangsstellung außerhalb des Lagers verschoben wird. CLAIMS: i. Device to prevent the Rolling elements in rolling bearings, in particular needle bearings, the rolling elements of which without a connecting one Intermediate member (cage) in the shaft and the cylindrical inner wall of the Annular space formed in the bearing are used, marked by a with the Shaft along N-movable cylindrical packing, located outside of the bearing is located as long as the shaft is pushed into the bearing, but that when it is removed the shaft must inevitably get out of the bearing into the bearing cavity, where it is used for : 1l support of the rolling elements can remain until it is back into the Bearing introduced shaft moved to its starting position outside of the bearing will. 2. Einrichtung nach Anspruch i, dadurch gekennzeichnet, daß der Füllkörper aus einer Hülse (8) besteht, die einen dem Wellendurchmesser entsprechenden Mantelteil aufweist und die unter der Einwirkung einer in den Hülsenhohlraum hineinragenden Feder (9) steht. 2. Device according to claim i, characterized in that the filler body consists of a sleeve (8) which has a shell part corresponding to the shaft diameter and which protrudes into the sleeve cavity under the action of a Spring (9) is up. 3. Einric'ht,ung mach Anspruch 2, dadurch gekennzeichnet, daß die Hülse mit einem beim Entfernen der Welle die Vorschubbewegung der Hülse beendigenden Bund (ii) verseben ist. 3. Einric'ht, ung make claim 2, characterized in that the Sleeve with a termination of the advancing movement of the sleeve when the shaft is removed Covenant (ii) is sifted. 4. Einrichtung nach Anspruch 2 oder 3, dadurch gekennzeichnet, daß die Hülse (8) mit einer der Mitte der Wellenstirnfläche ziige'kehrten Erhebung verseben ist. 4. Device according to claim 2 or 3, characterized in that that the sleeve (8) with an elevation facing the center of the shaft end face is sunk. 5. Einrichtung nach Anspruch 4, dadurch gekennzeichnet, daß in die dem Wellenende zu- gekehrte Seitenwand der Hülse (8) eine mindestens teilweise aus dieser Wand herausragende Kugel ,(io) eingesetzt ist.5. Device according to claim 4, characterized in that in the shaft end to-swept side wall of the sleeve (8) at least partially protruding from the wall ball, (io) is inserted.
DEP2856A 1948-10-02 1948-10-02 Device for preventing the rolling bodies from falling out in rolling bearings, in particular needle bearings Expired DE827276C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEP2856A DE827276C (en) 1948-10-02 1948-10-02 Device for preventing the rolling bodies from falling out in rolling bearings, in particular needle bearings

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP2856A DE827276C (en) 1948-10-02 1948-10-02 Device for preventing the rolling bodies from falling out in rolling bearings, in particular needle bearings

Publications (1)

Publication Number Publication Date
DE827276C true DE827276C (en) 1952-01-10

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Family Applications (1)

Application Number Title Priority Date Filing Date
DEP2856A Expired DE827276C (en) 1948-10-02 1948-10-02 Device for preventing the rolling bodies from falling out in rolling bearings, in particular needle bearings

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DE (1) DE827276C (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1005791B (en) * 1954-07-30 1957-04-04 Wagner Fa Ferd Bearing for spindles with high speed, especially grinding spindles
US3147049A (en) * 1960-10-01 1964-09-01 Italiana Magnetic Marelli S P Anti-backlash anti-friction bearing assembly
US5232334A (en) * 1990-10-31 1993-08-03 Societe Europeenne De Propulsion Rotary machine having an axial abutment that retracts automatically by means of a flexible membrane subjected to the pressure of a fluid
US5340287A (en) * 1989-11-02 1994-08-23 Matsushita Electric Industrial Co., Ltd. Scroll-type compressor having a plate preventing excess lift of the crankshaft

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1005791B (en) * 1954-07-30 1957-04-04 Wagner Fa Ferd Bearing for spindles with high speed, especially grinding spindles
US3147049A (en) * 1960-10-01 1964-09-01 Italiana Magnetic Marelli S P Anti-backlash anti-friction bearing assembly
US5340287A (en) * 1989-11-02 1994-08-23 Matsushita Electric Industrial Co., Ltd. Scroll-type compressor having a plate preventing excess lift of the crankshaft
US5232334A (en) * 1990-10-31 1993-08-03 Societe Europeenne De Propulsion Rotary machine having an axial abutment that retracts automatically by means of a flexible membrane subjected to the pressure of a fluid

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