EP2758680A1 - Procédé de fixation par déformation d'éléments de bague de palier - Google Patents

Procédé de fixation par déformation d'éléments de bague de palier

Info

Publication number
EP2758680A1
EP2758680A1 EP12759698.9A EP12759698A EP2758680A1 EP 2758680 A1 EP2758680 A1 EP 2758680A1 EP 12759698 A EP12759698 A EP 12759698A EP 2758680 A1 EP2758680 A1 EP 2758680A1
Authority
EP
European Patent Office
Prior art keywords
bearing ring
ring elements
receiving space
expansion material
activatable
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Withdrawn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
EP12759698.9A
Other languages
German (de)
English (en)
Inventor
Wolfgang GLÄNTZ
Ingo Schulz
Florian Wohlfeil
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.)
SKF AB
Original Assignee
SKF AB
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 SKF AB filed Critical SKF AB
Publication of EP2758680A1 publication Critical patent/EP2758680A1/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Withdrawn legal-status Critical Current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
    • F16C43/00—Assembling bearings
    • F16C43/04—Assembling rolling-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
    • 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
    • F16C19/34—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 for both radial and axial load
    • F16C19/38—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 for both radial and axial load with two or more rows of rollers
    • 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
    • F16C33/00—Parts of bearings; Special methods for making bearings or parts thereof
    • F16C33/30—Parts of ball or roller bearings
    • F16C33/58—Raceways; Race rings
    • F16C33/60—Raceways; Race rings divided or split, e.g. comprising two juxtaposed rings
    • 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
    • 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/30—Material joints
    • F16C2226/40—Material joints with adhesive
    • 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
    • F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned

Definitions

  • the present invention relates to a concept for securing deformation of bearing ring elements, in particular of bearing ring halves, a split bearing ring.
  • split bearings include both undivided and split bearings.
  • Split bearings such as split cylindrical roller bearings, are primarily used for bearings in hard-to-reach places or cranked shafts. But their use is also advantageous wherever undivided bearings require expensive and time-consuming additional work during maintenance or replacement and would cause long and expensive or unacceptable machine downtimes.
  • Split bearings have axially split bearing rings that can be distinguished into axially split inner and outer bearing rings, and may also be referred to as axially split races. In axially frictionally connected and split bearing inner rings (O-arrangement) or bearing outer rings (X-arrangement) of double row tapered roller bearings, d. H.
  • split tapered roller bearings are often delivered as a preassembled package or a preassembled unit.
  • the split tapered roller bearing is not yet in its final geometry.
  • This axial gap is thus one of the essential elements for the radial preload and thus the optimal functioning of the bearing and should therefore be as accurate as possible.
  • the concern of the two rings, ie the closing of the gap must therefore be as accurate as possible. All elements that enter or are additionally introduced into the gap are detrimental to the function of the bearing.
  • the gap is closed during final assembly by the user of the split tapered roller bearing.
  • the bearing is moved / rotated while the screws are being pulled in, so that the two bearing inner and outer ring halves self-center and find their optimum position for the function (screwing in). Because of this self-centering, it may be that the two bearing inner and outer bearing ring halves are not absolutely congruent or aligned, but that their axes of rotation are offset in the radial direction by a few ⁇ .
  • bearing ring elements or halves have hitherto been used, for example, by means of very high tightening torques. existing coatings or by applying liquid adhesives axially bonded together.
  • an adhesive is introduced directly between the bearing ring halves during assembly.
  • Such methods have, for example, the disadvantage that the introduction of an adhesive into assembly lines is difficult or process reliability - in particular with regard to a quantity of adhesive to be supplied and with regard to the cleanliness of the joining partners - depends on the circumstances during assembly or on the respective assembly partner.
  • the present invention is therefore based on the object of providing an improved concept for securing the deformation of bearing ring elements, in particular of bearing ring halves, of axially divided bearing rings.
  • a realization of the present invention is that the object can be achieved by additionally forming and / or additionally subsequently positively-coupling (eg by means of a screw connection) two axially divided bearing ring elements, in particular two bearing ring halves, the axially divided bearing ring elements cohesively be connected by means of a provided in a designated receiving space of a bearing ring element activatable expansion material.
  • "in hindsight" in terms of time after an introduction or introduction of the activatable expansion material into the receiving space means at least one of the bearing ring elements, after a joining of the bearing ring elements and after activation of the expansion material.
  • Exemplary embodiments for this purpose provide a method for preassembling two bearing ring elements of a bearing ring divided in an axis-normal parting plane.
  • a receiving space for later expansion material activatable eg during a final assembly
  • the activatable expansion material is introduced into the receiving space before the two bearing ring elements are pre-assembled by establishing a frictional coupling of the bearing ring elements such that between the two preassembled bearing ring elements a small axial gap remains, which can be closed during a final assembly.
  • the bearing ring elements are bearing ring halves of an axially divided rolling bearing, wherein the surfaces of the opposite end faces of the bearing ring halves lie in the parting plane.
  • the end face of an axial bearing ring half e.g. a bearing inner ring half or a bearing outer ring half, is annular.
  • the receiving space can thus be introduced into at least one of the bearing ring halves by forming at least one (flat) groove running in the annular end face.
  • the groove may have an axial extent (i.e., in the direction of the bearing ring rotation axis) of, for example, 0.1% to 10% of the axial extent of the bearing ring half into which the groove for the activatable adhesive material is formed.
  • the two bearing ring elements When preassembling the two bearing ring elements, the two bearing ring elements can be screwed together, for example in such a flange, so that between their axially opposite end faces of the axial gap with an axial extent of 10 ⁇ up to 1 mm, for example, about 200 ⁇ remains.
  • This gap which can scatter very strongly, can then be closed during later final assembly, which can take place, for example, in the case of the user of the split rolling bearing.
  • a flat groove can be introduced in one of the bearing ring halves on its front side before or during pre-assembly, which is filled with an expansion material (such as an expansion adhesive) which can be activated by (outside).
  • an expansion material such as an expansion adhesive
  • the activatable expansion adhesive in a pasty state or in the form of a roll-off adhesive tape in the groove, ie the receiving space, are introduced.
  • the activatable expansion adhesive After the activatable expansion adhesive has been introduced into the receiving space, it can be precured, so that under ambient conditions (eg at a temperature of -10 ° C. to + 60 ° C.) in the preassembled state of the bearing ring elements, a firm consistency does not yet exist has adhesive properties.
  • the bearing ring elements may be, for example, a screwed flange-like connection of the two bearing ring elements.
  • the bearing ring elements can thus be provided in the axial direction with holes through and into which can be performed for mounting the two bearing ring elements in the axial direction fixing screws.
  • other connections for pre-assembly of the two bearing ring elements or halves are conceivable, such. by means of bolts or pins.
  • the pre-assembly of the bearing ring elements i. the molding of the receiving space, the introduction of the activatable expansion material and the frictional coupling of the two bearing ring elements, for example, take place at a bearing or bearing ring manufacturer.
  • Exemplary embodiments likewise include a method for the final assembly of two bearing ring elements preassembled by means of force-locking coupling of a bearing ring divided in an axially normal parting plane, wherein at least a first of the bearing ring elements in the parting plane has an end face with a receiving space filled with an activatable expansion material, and a narrow axial gap is provided between the two preassembled bearing ring elements.
  • the end faces of the pre-assembled bearing ring elements are initially aligned relative to each other in a desired relative position, for. B. in the axial direction. Thereafter, the aligned bearing ring elements are additionally connected positively and / or cohesively by activating the activatable expansion material in the receiving space in addition to their force during the pre-assembly coupling.
  • the two bearing ring elements or halves are thus first joined according to embodiments as usual and then non-positively connected to each other, for example by means of a screw connection.
  • the activatable expansion material is activated and thus expanded in terms of volumetric expansion. introduced. It then grows in volume, fills the receiving space or the groove more or less completely and forms in a contact zone of the two joining partners, ie the bearing ring elements, according to some embodiments of an adhesion.
  • the gap is closed and made in addition a cohesive connection between the two bearing ring elements or halves.
  • a flat groove in each case a flat groove can be introduced in both bearing ring elements at their end faces.
  • adhesive material e.g., adhesive, polymer, metal foam, or the like
  • adhesive may be precured so that it has a solid consistency but no adhesive properties under ambient conditions (room temperature).
  • Polymers or metal foams can be incorporated in such a way that they are easy to handle.
  • a receiving space for the activatable expansion material can be introduced during pre-assembly in both lying in the parting plane end faces of both bearing ring elements, but only in one of the two receiving spaces the activatable material is introduced.
  • the two bearing ring elements or halves are also joined here as usual and then connected to one another in a force-locking manner during pre-assembly (for example by means of screwing).
  • the activatable and not necessarily adhesive expansion material can be activated during the subsequent final assembly of the bearing ring elements and thus brought to the expansion. Then it grows in volume, fills both the recess into which it was introduced, as well as the opposite recess or groove more or less completely.
  • the activated and subsequently expanded (and possibly additionally adhesive) material forms a third element (blocking element), which connects the two bearing ring elements in the radial direction even after its expansion in the recesses in a form-fitting manner.
  • a shallow groove can be introduced in both bearing ring elements at their end faces.
  • one of these grooves becomes one of externally activatable and then expanding material filled.
  • a blocking element can now be inserted into the receiving space or the groove with the expanding material.
  • the blocking element may, for example, be a continuous or segmented ring whose diameter and thickness are adapted to the annular groove geometries.
  • the two bearing ring halves are again joined during pre-assembly, as usual, and then connected non-positively with each other.
  • the activatable and adhesive according to some embodiments material is activated and thus brought to expansion. Then it grows in volume and fills the groove or recess into which it was introduced more or less completely.
  • the blocking element is pressed by the expanding material from one groove into the other, opposite groove. This locking element is preferably higher than the opposite groove is deep, so that the locking element, when it comes to rest in the opposite groove, also protrudes into its original groove into which it was given.
  • the blocking element has a greater axial extent as the receiving space not filled with the activatable adhesive material.
  • the blocking element may, according to some embodiments, also be designed so that it is deformed by the expanding material in the receiving space, which may also be an explosive, and is pressed into the opposite groove.
  • the locking element form a radial, positive connection between the two bearing ring halves.
  • the volume enlargement of the activatable material can be achieved after its activation by physically or chemically acting (mixed with the material) propellant.
  • the activation of the material can be done, for example, by supplying heat energy, induction, or ultrasound or the like.
  • Possible materials for realizing the given requirements are hot melt adhesives (hotmelts), which can be activated by increasing the temperature. It can be provided contact adhesives, which can be activated by evaporation of the solvent (most easily by temperature).
  • Anaerobic curing adhesives which can be activated by air exclusion, metal ions and possibly temperature introduction are also suitable activatable adhesive materials.
  • expanding polymers for example polyurethanes, etc.
  • expanding metal foams for example aluminum or magnesium, with suitable blowing agents
  • the activatable material is indeed introduced during the pre-assembly of the bearing ring elements in the space provided for this, but it is not yet functional or adhesive before its activation. Basically, the pre-assembled bearing ring elements or the resulting bearing are already functional, even if they are not yet 100% efficient. After the final assembly of the bearing ring elements or the bearing, z. B.
  • the activatable material is activated. If, for example, this is an activatable adhesive, it can be brought into a viscous state of aggregation so that it can wet the joining partners and then cure. In this way, the frictional connection of the screw / flange connection of the pre-assembly can be supplemented by a bonding of the bond. Since the adhesive surfaces are in the region of the groove, the joining surfaces of the non-positive connection are in no way influenced by the adhesive. If the hardened adhesive fills two axially opposite grooves, the frictional connection of the screw / flange connection is even supplemented by positive locking of the bond. The same applies to an expanding polymer, an expanding metal foam and / or an additional blocking element.
  • the activatable material Due to the fact that the activatable material is concealed in the recess provided during the final assembly, it has no (negative) influence on the two axially opposite end faces or joining surfaces of the bearing ring elements.
  • the axial gap between see the bearing ring elements, which determines the functionality is not affected by the present in the recess activatable material.
  • Embodiments can solve the contradiction that the two axially opposite end or joining surfaces of the bearing ring elements are to be glued together, but this bonding normally deteriorates the connection / function of the bearing ring elements, since it Gap is increased in a relatively unpredictable manner (according to TRIZ eg separation into space / location and time / process sequence).
  • the necessary bearing position is not affected by the additional adhesive connection, especially with regard to a separating or spacing-increasing effect in the parting line or the gap.
  • an activatable adhesive After an activatable adhesive has been introduced into the recess provided for this purpose, it is precured so that it has a dry, non-adhesive state. As a result, the handling of the pre-assembled bearing rings is very simplified.
  • the activatable adhesive or material is activated externally, then expands and, as a result of the expansion, fills the receiving or hollow spaces in the faces of the joining partners.
  • the activatable material may be prefabricated (eg in the form of bands, etc.). This can additionally simplify the application of the material.
  • a stable composite for example of bearing ring halves divided inner and / or outer bearing rings of rolling bearings can be produced in a cost effective manner.
  • a bond according to the invention may additionally have a certain sealing function, so that no media can penetrate through the joining or fitting surfaces between the bearing or raceway components.
  • 1a is a sectional view of a split rolling bearing in O arrangement with a split bearing inner ring and provided therein for an activatable adhesive expansion material receiving space, according to an embodiment of the present invention
  • Figure lb is a sectional view of a split roller bearing in an X-arrangement with a split bearing outer ring and a receiving space provided therein for an activatable adhesive expansion material, according to an embodiment of the present invention.
  • Fig. 2 is a sectional view of a split rolling bearing in O arrangement with a pre and finally mounted split bearing inner ring, according to an embodiment of the present invention
  • Fig. 3 is a sectional view of a split rolling bearing in O arrangement with a pre and finally mounted split bearing inner ring, according to another embodiment of the present invention
  • various sectional views of a split rolling bearing in O arrangement in various mounting states according to an embodiment of the present invention.
  • FIGS. 1a and 1b show examples of axially split rolling bearings 10, 20, for the assembly of which methods according to embodiments of the present invention can be used.
  • Fig. La shows a sectional view of a split-shaped roller bearing 10 in O arrangement.
  • the split rolling bearing 10 has an axially divided inner ring 11 with two bearing inner ring members or halves 11-1, 11-2.
  • rolling elements 12 may equally well be provided as rolling elements 12 , Radially outward, the two rows of rolling elements 12 are guided by an undivided bearing outer ring 13.
  • Both the two bearing inner ring halves 11-1, 11-2, as well as the undivided Bearing outer ring 13 have in the axial direction, ie in the direction of the bearing rotation axis 14, extending bores 15 through which fastening or coupling means can be performed to one hand, the two bearing inner ring halves 11-1, 11-2 positively coupled with each other, as well as to For example, the entire bearing assembly 10 to be attached to a bearing housing or a storage (not shown).
  • Fig. Lb shows an axially split roller bearing 20 in an X arrangement.
  • an axis of rotation of the rolling elements 12 extends such that axially inner end faces of the rolling elements 12 in the radial direction are further outward than their axially outwardly facing end faces.
  • the bearing inner ring 11 is designed to be undivided in the case of the X arrangement of FIG. 1 b, whereas the bearing outer ring 13 has two axially divided bearing outer ring elements or halves 13 - 1, 13 - 2.
  • 1 a and 1 b each have two bearing ring elements 11 - 1, 11 - 2 and 13 - 1, 13 - 2 of a bearing ring 11 (bearing inner ring) or 13 (bearing outer ring) divided into a rotation axis normal separating plane 16.
  • Embodiments of the present invention provide that during a Vormon- day process, a receiving space 17 for an activatable expanding and possibly adhesive material (expansion material) 18 in a lying in the parting plane 16 end of at least one of the bearing ring elements 11-1, 11-2 or 13-1, 13-2 is formed.
  • retaining chambers 17 are formed by way of example in the end faces of the bearing ring halves 1 1-1 and 13-1.
  • the receiving space or a recess 17 can be formed, for example, as an annular circumferential groove in the bearing ring element 11-1 or 13-1, as shown in the sectional views of Fig. La and lb is shown as an example.
  • the activatable expansion material 18 is introduced into the receiving space 17 provided for this purpose.
  • An expansion adhesive can be introduced into the receiving space 17, for example, in a pasty state or in the form of a rollable adhesive tape. In this case, the expansion material 18 is not yet activated, that is not yet expanded and / or adhesive.
  • the activatable material 18 may be precured so that it can be used under ambient conditions, e.g. For example, in a temperature range of -20 to 60 ° C, in the pre-assembled state of the bearing ring elements or halves 1 1-1, 11-2 and 13-1, 13-2, for example, still no expanding and / or adhesive, i. adhesive properties.
  • the activatable adhesive material 18 may be an activatable expansion adhesive that is introduced into the receiving space 17 in a pasty state or in the form of a rollable adhesive tape during pre-assembly.
  • the two bearing ring elements 11-1, 11-2 and 13-1, 13- 2 can be pre-assembled by producing a non-positive coupling of the bearing ring elements, wherein between the a pre-assembled bearing ring elements 1 1-1, 11-2 and 13-1, 13-2 a small axial gap remains (in the Fig. La and lb not explicitly shown), which during a later final assembly of the split rolling bearing 10 and 20 can be closed.
  • the non-positive axial coupling of the two bearing ring elements 11-1, 11-2 or 13-1, 13-2 can take place, for example, by means of a frictional screw connection through the axially extending bores 15 provided for this purpose.
  • the entire pre-assembly of the bearing ring elements 11-1, 11-2 or 13-1, 13-2 or the resulting rolling bearing 10 or 20 can be done for example by a bearing manufacturer.
  • the thus pre-assembled bearings, in which the expansion material 18 located in the recess 17 is still in a deactivated, ie not expanded and non-adhesive state, can then be transported in this pre-assembled form by the bearing manufacturer to a location of the bearing 10 or 20 where a final assembly of the warehouse can then take place. 2
  • a method for a final assembly of two by means of a force-locking axial coupling pre-assembled bearing ring elements of a split in a rotational axis normal parting plane bearing ring 10 will be described below.
  • a first bearing ring element 11 - 1 of the preassembled bearing ring elements in the parting plane has an end face with a first receiving space 17 - 1 filled with the activatable material 18.
  • a small axial gap (not explicitly shown in FIG. 2) in a range of 10 ⁇ m to 1 mm, for example approximately 200 ⁇ m, is provided.
  • the mutually facing end sides of the preassembled bearing ring elements 11-1, 11-2 are brought into a desired relative or joining position to each other, preferably in the axial direction (a radial relative position was already set during pre-assembly). This can be done for example by tightening and / or loosening or loosening set during pre-assembly screw connections through the holes 15. Additionally or alternatively, the bearing ring halves 1 1-1, 11-2 can also be radially aligned again to each other until they have the desired relative position to each other.
  • the activatable material 18 located in the receiving space 17 is activated, whereupon, in terms of volume, it is removed from the receiving space 17-1 or from the corresponding Face expands out.
  • a receiving space for the expansion material 18 may be provided in only one of the two bearing ring elements 1 1-1, 11-2, some embodiments also provide in the second bearing ring element 11-2, a second receiving space 17-2, with the first receiving space 17-1 cooperates in such a way that, after the activation of the activatable material 18, it expands axially from the first receiving space 17-1 into the second receiving space 17-2. That is, in some embodiments, in both lying in the parting plane 16 end faces of the two bearing ring elements 1 1-1, 11-2 each have a receiving space 17-1 and 17-2 formed for the activatable material 18, wherein during the pre-assembly only in one the two receiving spaces 17-1 or 17-2, the activatable material 18 is introduced.
  • FIG. 3 shows an alternative embodiment in which during the pre-assembly (see FIG. 3, left), in addition to the activatable material 18, a blocking element 31 is inserted into the receiving space 17-1 of a first bearing ring element 11-1.
  • the blocking element 31 may be, for example, a continuous ring or a segmented ring.
  • the two bearing ring elements 11-1, 11-2 are joined as usual and frictionally connected to one another, for example by means of a screw connection through the bores 15.
  • the material 18 located in the receiving space 17-1 is activated during the final assembly (see FIG. 3, right) and thus brought to expansion. Then it grows in volume and fills the recess 17-1, in which he was introduced more or less completely.
  • the blocking element 31 is pressed by the expanding material 18 from the first recess 17-1 into a corresponding second recess 17-2 of the second bearing ring element 11-2.
  • An axial extension of the locking element 31 is greater than the second recess 17-2 is deep, so that the locking element 31, when it comes to rest in the second recess 17-2, axially projects into the first recess 17-1.
  • a positive connection in the radial direction is additionally formed by the blocking element 31.
  • the blocking element 31 may also be designed such that it is at least partially deformed by the expanding material 18, which may also be an explosive, and thus pressed into the opposite, corresponding recess 17-2.
  • the lock le- ment 31 has a greater axial extent than the non-filled with the activatable adhesive material second receiving space.
  • bearing rings 13 and bearing ring halves 11 - 1, 11 - 2 of a bearing ring 1 1 divided into an axis-normal separating plane 16 are preassembled into a double-row roller bearing 10, for example at one bearing manufacturer.
  • an annular recess 17 for an activatable expansion material 18 is formed in an end face of the bearing ring half 11-1 lying in the parting plane. In this indentation 17, the activatable material 18 is then attached in not activated state.
  • the two bearing ring elements 11-1, 11-2 can still be preassembled by producing a frictional coupling at the bearing manufacturer, wherein between the two preassembled or axially coupled bearing ring elements 11-1, 11-2 initially an axial gap 41 remains with an axial extent of in a range of 10 ⁇ to 200 ⁇ , which can be closed during the later success final assembly.
  • the preassembled roller bearing 10 (eg a double-row tapered roller bearing) is then transported as a package or a unit to its place of use, but is not yet in its final geometry (see Fig. 4, center). Between the two inner ring halves 11-1, 11-2 (or outer ring halves in otherplainsbeispie- len) is the axial gap 41. Only when this gap 41 is closed, the radial bias of the rolling bearing 10 is made and thus the bearing is functional.
  • the pre-assembled bearing 10 can then, as already described, be aligned by axial (and possibly also radial) alignment of the opposite end sides of the preassembled bearing ring elements 11-1, 11-2 to one another in a desired relative position and subsequent additional material. and / or positively connecting the aligned bearing ring elements 11-1, 11-2 by activating the expansion material 18 in the receiving space 17 are finally assembled (see Fig. 4, right).
  • the end face of the first bearing ring element 11-1 provided with the receiving space 17 is brought into coincidence with its facing end side of the second bearing ring element 1-2 to join the first and second bearing ring elements in their parting plane 16 to form a split bearing ring 11 ,
  • the receiving spaces 17-1, 17-2 or their openings formed in the end surfaces are brought into line.
  • the activatable material 18 Upon activation of the activatable material 18, its expansion property can be activated, so that the activated material in the at least one receiving space 17 expands in terms of volume, so that, for example, an activatable adhesive material 18, an adhesive bond of the first bearing ring element 11-1 with the second bearing ring element 11-2 is effected in the axis normal separating plane 16.
  • An activatable material 18 may be an adhesive which has a solid consistency at typical ambient temperatures (e.g., between 0 ° C and 50 ° C). The adhesive 18 thus has not only a solid consistency at typical ambient temperatures, it also has no adhesive property.
  • hotmelt adhesives also referred to as "hotmelts”
  • hotmelts which are solid at room temperature and can be processed by melting, ie they develop their adhesive action when heated, ie they are activated by temperature
  • Adhesive melt then enters the adhesive bond, and immediately after cooling and solidification of the adhesive, the bond is strong, which advantageously allows for rapid assembly.
  • Contact adhesives can also be used.
  • anaerobic curing adhesives can be used. These adhesives are used as a one-component system.
  • the monomers of (modified) acrylic acid esters cure according to a radical chain mechanism similar to the methyl methacrylates. What is special about this is that the hardening reaction starts only with the exclusion of oxygen, ie anaerobically, and in the presence of metal ions, when the adhesive is sealed off from the ambient air in a tight metallic joint. Only metallic materials can be glued to it, which is advantageous for the present invention, since free metal ions are required as reactants for the curing.
  • UV curing adhesives are preferred adhesives. These adhesives, which are used as one-component systems, solidify by radical polymerization into solid polymers, wherein the formation of the starting radicals is caused by irradiation with UV light (or other radiation sources, such as electrons). The wavelength of the UV light must be exactly matched to the adhesive system used. The curing takes place by irradiation with UV light.
  • UV acrylates are known. In the liquid state, a radically crosslinking UV adhesive consists predominantly of monomers and photoinitiators. In this condition, the adhesive can be easily dosed. The action of UV radiation splits the photoinitiators into free radicals.
  • the UV adhesive When cured, the UV adhesive consists of crosslinked polymer chains.
  • cationic epoxies epoxy resin adhesives
  • the cationic curing adhesive systems can continue to cure in the dark after sufficient activation with UV radiation.
  • Cationic epoxies can also be used for applications with a UV-transparent component as well as for applications in non-UV-transparent materials. For the latter, the adhesive must be activated after dosing, but before joining with UV radiation. After activation, the adhesive has a limited open time in which to add the components.
  • the adhesive preferably contains a physically or chemically acting propellant which is activated upon activation of the adhesive itself and which increases the volume of the adhesive by gas formation or gas expansion.
  • the increase in volume is a physical consequence of the heating of filled with gas or vaporizable liquid hollow microspheres.
  • chemical blowing agents a gas is split off by a chemical reaction, which causes the volume increase of the adhesive. Due to the increase in volume after activation, it is not necessary that an area between the bearing ring halves must be tolerated excessively accurately with each other. Rather, a gap between adhesive and the other bearing ring element or the other bearing ring half may remain, which facilitates the joining of the two components. Due to the increase in volume, the adhesive fills the gap after activation and thereby connects the two parts in a material-locking manner.
  • an adhesive based on polyurethanes, epoxy resins or acrylates may be used.
  • acrylate includes substituted acrylates such as methacrylate.
  • reactive hot melt adhesives examples include so-called "reactive hot melt adhesives.” These are spreadable in a molten state so that they can be applied in this way into the receiving space 17 in the end face of the bearing ring element without activating the curing mechanism Rather, it requires heating to a higher activation temperature at which a latent hardener is activated for a reactive binder component (for example, a prepolymer having epoxy or isocyanate groups).
  • a reactive binder component for example, a prepolymer having epoxy or isocyanate groups
  • the adhesive may contain a resin component, at least one thermally activatable latent curing agent for the resin component and optionally accelerators, fillers, Thxotropieologisstoff and other conventional additives, wherein the resin component by reaction of a solid at room temperature epoxy resin, a liquid at room temperature epoxy resin and a linear polyoxypropylene having amino end groups.
  • the epoxy resins are used in such an amount, based on the polyoxypropylene with amino end groups, that an excess of epoxide groups, based on the amino groups, is ensured.
  • dicyandiamide is suitable as the latent hardener.
  • epoxy resin structural adhesives can be used.
  • compositions comprising a copolymer having at least one gas transition temperature of -30 ° C or lower and epoxide-reactive groups or a reaction product of this copolymer with a polyepoxide, furthermore a reaction product of a polyurethane prepolymer and a polyphenol or aminophenol and finally contain at least one epoxy resin.
  • these compositions thermosetting they additionally contain a latent hardener from the group of dicyandiamide, guanamines, guanidines, aminoguanidines, solid aromatic diamines and / or curing accelerators.
  • they may contain plasticizers, reactive diluents, rheology aids, fillers, wetting agents and / or anti-aging agents and / or stabilizers.
  • a second component B is included, but enclosed in small capsules and therefore separate from the first component A.
  • the capsules of the second component B may e.g. B. of very thin plastic material, which is very sensitive to mechanical forces and / or thermal stress. Accordingly, bursting of the capsules can be accomplished by external mechanical forces or by heating the capsules or their contents. This has the consequence that the two adhesive components A and B mix and react with each other, which is to be understood as the activation of such an adhesive. Bursting of the capsules upon application of heat is promoted by the fact that the component B expands at least slightly when heated.
  • heating of the multi-component adhesive and in particular of the second component B in the capsules can be caused, for example, by means of an induction coil.
  • the resulting heat causes the capsules to burst so that the second component B is released and can mix with the first component A. Consequently, the desired reaction between the two adhesive components A and B (activation) and to a hardening of the adhesive, whereby the two bearing ring halves can be firmly connected together.
  • thermally activatable adhesive systems can be used with or without the blowing agents described above, depending on whether or not to increase the volume of the adhesive during or after the thermal activation.
  • Embodiments of the present invention also include a rolling bearing, which comprises one another by means of the expansion material 18 positively and / or cohesively connected inner and / or outer bearing ring halves.
  • a rolling bearing which comprises one another by means of the expansion material 18 positively and / or cohesively connected inner and / or outer bearing ring halves.
  • further embodiments of course also include a bearing ring 11, 13 for a roller bearing with at least one first Lagerringele- element, wherein the first bearing ring member and a second bearing ring element by an activated in the receiving space 17 of the first bearing ring element expansion material 18 at the end faces of the bearing ring elements to the bearing ring 11, 13 are positively and / or materially connected (by gluing).
  • a shallow groove is introduced at its end face, which can be filled with an externally activatable expansion material (eg expansion adhesive).
  • an adhesive introduction pasty or in the form of a roll-off adhesive tape is precured so that under ambient conditions (eg room temperature) it initially has a solid consistency but still no adhesive properties.
  • the two bearing rings or bearing ring halves are then joined as usual and frictionally connected to each other.
  • the adhesive is activated and thus brought to the volume expansion.
  • the activated adhesive grows in volume, fills the groove or the receiving space more or less completely and forms in a contact zone of the two joining partners adhesion.
  • the volume increase can be achieved by physically or chemically acting (mixed with the adhesive) propellant.
  • the activation of the adhesive can for example, by the application of heat energy, preferably induction, or ultrasound done.
  • Possible adhesives for realizing the given requirements are, for example, hot melt adhesives (hotmelts) whose activation takes place by increasing the temperature.
  • hotmelts hot melt adhesives
  • contact adhesives whose activation takes place by evaporation of the solvent (most easily by temperature).
  • Anaerobic curing adhesives can be activated by exclusion of air, metal ions and possibly temperature application.
  • the adhesive takes place in a dry, non-adhesive state. As a result, handling can be greatly simplified.
  • the adhesive is triggered by external activation and expands by expansion the designated cavities.
  • the adhesive can be prefabricated (eg in the form of tapes, etc.). This simplifies application of the adhesive. Since the adhesive surfaces are in the region of the groove, the joining surfaces (end faces) of the frictional connection are in no way influenced by the adhesive.
  • a necessary bearing position is not affected by the connection, in particular with respect to a separating or distance-increasing effect in the parting line.
  • the bond also provides a certain sealing function, so that no media can penetrate through the mating surfaces between the ring components.

Abstract

Des exemples de réalisation concernent un procédé de prémontage et de montage final de deux éléments (11-1, 11-2; 13-1; 13-2) d'une bague de palier (11; 13) divisée selon un plan de joint (16) perpendiculaire à l'axe. Lors du prémontage, on forme un logement (17) pour un matériau expansible activable (18) dans une face frontale située dans le plan de joint (16) de l'un au moins des éléments de bague de palier (11-1, 11-2; 13-1; 13-2), on introduit le matériau expansible activable (18) dans le logement (17) et on réalisé un accouplement à force des éléments de bague de palier. Entre les deux éléments de bague de palier prémontés, il subsiste un interstice axial (41) qui peut être fermé lors du montage final. Lors du montage final, les faces frontales des éléments de bague de palier (11-1, 11-2; 13-1; 13-2) prémontés sont amenées dans une position relative souhaitée l'une par rapport à l'autre et une liaison supplémentaire par complémentarité de forme et/ou par liaison de matière est réalisée entre les éléments de bague de palier (11-1, 11-2; 13-1; 13-2) mis en place en activant le matériau expansible activable (18) dans le logement (17; 17-1; 17-2).
EP12759698.9A 2011-09-21 2012-09-14 Procédé de fixation par déformation d'éléments de bague de palier Withdrawn EP2758680A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011083119.3A DE102011083119B4 (de) 2011-09-21 2011-09-21 Konzept zur Verformungssicherung von Lagerringelementen
PCT/EP2012/068082 WO2013041459A1 (fr) 2011-09-21 2012-09-14 Procédé de fixation par déformation d'éléments de bague de palier

Publications (1)

Publication Number Publication Date
EP2758680A1 true EP2758680A1 (fr) 2014-07-30

Family

ID=46875787

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12759698.9A Withdrawn EP2758680A1 (fr) 2011-09-21 2012-09-14 Procédé de fixation par déformation d'éléments de bague de palier

Country Status (3)

Country Link
EP (1) EP2758680A1 (fr)
DE (1) DE102011083119B4 (fr)
WO (1) WO2013041459A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102014208232A1 (de) * 2014-04-30 2015-11-05 Aktiebolaget Skf Lagerring für ein Lager sowie Lager mit dem Lagerring
CN105673684B (zh) * 2014-11-18 2018-02-09 上银科技股份有限公司 具间隔子的交叉滚柱轴承
CN105673680B (zh) * 2014-11-21 2018-02-13 上银科技股份有限公司 滚动轴承
DE102015214330A1 (de) 2015-07-29 2017-02-02 Schaeffler Technologies AG & Co. KG Großwälzlager

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010063349A1 (de) * 2010-12-17 2012-06-21 Aktiebolaget Skf Lagerringelement und Verfahren zum Verbinden von Lagerringelementen

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2615767A (en) * 1946-06-14 1952-10-28 Wallgren August Gunn Ferdinand Double row roller bearing
AT235637B (de) * 1961-05-02 1964-09-10 Pitner Alfred Kombiniertes Radial- und Axialwälzlager
DE6800671U (de) * 1968-10-02 1969-01-23 Skf Kugellagerfabriken Gmbh Abgedichtetes waelzlager, insbesondere vollrolliges zylinderrollenlager
DE3544988A1 (de) * 1985-12-19 1987-07-02 Skf Gmbh Abgedichtetes waelzlager
DE4133442A1 (de) * 1991-10-09 1993-04-15 Schaeffler Waelzlager Kg Waelzlagerlaufring mit angeklebten borden
DE10200811B4 (de) * 2002-01-11 2009-06-04 Ab Skf Verfahren zur Herstellung eines Wälzlagerrings, sowie danach hergestellter Wälzlagerring
DE10256855A1 (de) * 2002-12-05 2004-06-17 Ab Skf Verfahren zur Montage eines zweireihigen Kegelrollenlagers
DE102004018188A1 (de) * 2004-04-14 2005-11-10 Fag Kugelfischer Ag & Co. Ohg Zweireihiges Schrägwälzlager
DE102006034967A1 (de) * 2006-07-28 2008-01-31 Schaeffler Kg Geteiltes Wälzlager
DE102007042770A1 (de) * 2007-09-07 2009-03-12 Schaeffler Kg Rotorlagerung für eine Windenergieanlage
DE102007062056A1 (de) * 2007-12-21 2009-06-25 Schaeffler Kg Wälzlager mit geteiltem Außenring mit radialer Fixierung
DE102010004792A1 (de) * 2010-01-16 2011-07-28 Aktiebolaget Skf Verfahren zum Festlegen eines Lagerrings an oder in einem Bauteil
DE102010004791A1 (de) * 2010-01-16 2011-09-01 Aktiebolaget Skf Verfahren zum Festlegen eines Lagerrings an oder in einem Bauteil

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102010063349A1 (de) * 2010-12-17 2012-06-21 Aktiebolaget Skf Lagerringelement und Verfahren zum Verbinden von Lagerringelementen
WO2012080164A1 (fr) * 2010-12-17 2012-06-21 Aktiebolaget Skf Élément de bague de palier et procédé de liaison d'éléments de bague de palier

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013041459A1 *

Also Published As

Publication number Publication date
WO2013041459A1 (fr) 2013-03-28
DE102011083119B4 (de) 2021-05-12
DE102011083119A1 (de) 2013-03-21

Similar Documents

Publication Publication Date Title
EP2524149B1 (fr) Procédé pour fixer une bague de palier sur ou dans un élément
EP2205882B1 (fr) Procédé pour fixer une bague de roulement sur ou dans un élément
EP2274549B1 (fr) Raccordement de tuyaux à l'aide d'adhésifs thermodurcissables
DE102011083119B4 (de) Konzept zur Verformungssicherung von Lagerringelementen
EP2524150A1 (fr) Procédé pour fixer une bague de palier sur ou dans un élément
EP3642099B1 (fr) Liaison d'éléments de carrosserie dans des véhicules automobiles
EP2278180A2 (fr) Procédé et dispositif de sécurisation axiale d'un élément de machine
EP2027170A1 (fr) Arbre avec un composant fixe
WO2009027214A1 (fr) Procédé de raccordement de tuyaux et tuyau doté d'une extrémité frontale profilée
EP2652349A1 (fr) Élément de bague de palier et procédé de liaison d'éléments de bague de palier
WO1994019613A1 (fr) Dispositif de fixation pour un trou perce non traversant contre-depouille
DE202005011722U1 (de) Hülse, insbesondere Außenhülse für ein Elastomerlager, und Elastomerlager mit einer derartigen Hülse
WO2006111221A1 (fr) Composant en matiere plastique a insert metallique et procede de fabrication dudit composant
DE102007010540B4 (de) Verfahren zum hochfesten Kleben von Bauteilen
DE102014207554A1 (de) Verbindungsanordnung, Verbindungshülse sowie Kraftfahrzeug mit einer solchen Verbindungsanordnung
EP3280920A1 (fr) Raccordement réversible de composants mécaniques
EP2591244B1 (fr) Procédé pour immobiliser un manchon sur un arbre
DE10311841A1 (de) Schraubenverbindungsteil und Verfahren zur Herstellung einer Schraubverbindung
DE102009053848A1 (de) Nagel zum Eintreiben in mindestens ein nicht vorgelochtes Bauteil
EP3293407A1 (fr) Liaison arbre-moyeu
DE102016004223B3 (de) Verfahren zur Herstellung rein elastisch ausgelegter Pressverbindungen unter Ausnutzung plastischen Materialverhaltens
EP4119424A1 (fr) Liaison des éléments de carrosserie pour des véhicules automobiles
EP2673534B1 (fr) Ensemble d'étanchéité
WO2020120196A1 (fr) Cheville à expansion
DE102012105236A1 (de) Federelastische Verbindung zwischen einem zylinderförmigen Metallteil und einem dazu konzentrisch angeordneten hohlzylindrischen Metallteil sowie Verfahren zur Herstellung einer solchen Verbindung

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140326

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20150617

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20160420

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20160831