WO2018086654A1 - Ensemble palier et procédé de fabrication d'un ensemble palier de ce type - Google Patents

Ensemble palier et procédé de fabrication d'un ensemble palier de ce type Download PDF

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Publication number
WO2018086654A1
WO2018086654A1 PCT/DE2017/100932 DE2017100932W WO2018086654A1 WO 2018086654 A1 WO2018086654 A1 WO 2018086654A1 DE 2017100932 W DE2017100932 W DE 2017100932W WO 2018086654 A1 WO2018086654 A1 WO 2018086654A1
Authority
WO
WIPO (PCT)
Prior art keywords
bearing
attachment
outer ring
radially outer
ring
Prior art date
Application number
PCT/DE2017/100932
Other languages
German (de)
English (en)
Inventor
Klaus Daut
Original Assignee
Schaeffler Technologies AG & Co. KG
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 Schaeffler Technologies AG & Co. KG filed Critical Schaeffler Technologies AG & Co. KG
Publication of WO2018086654A1 publication Critical patent/WO2018086654A1/fr

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
    • 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
    • F16C33/583—Details of specific parts of races
    • F16C33/586—Details of specific parts of races outside the space between the races, e.g. end faces or bore of 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
    • 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
    • F16C19/24—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 radial load mainly
    • F16C19/26—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 radial load mainly with a single row 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
    • F16C2226/00—Joining parts; Fastening; Assembling or mounting parts
    • F16C2226/30—Material joints
    • F16C2226/36—Material joints by welding
    • 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
    • F16C41/007—Encoders, e.g. parts with a plurality of alternating magnetic poles
    • 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

Definitions

  • the present invention relates to a bearing assembly comprising a bearing, such as in particular a rolling or sliding bearing, with an inner ring and an outer ring and at least one attached to the outer ring attachment.
  • the present invention further relates to a method for producing such a bearing arrangement.
  • a bearing arrangement in particular with a rolling or slide bearing
  • the object is achieved according to the invention by a bearing arrangement having the features of claim 1.
  • the object is further achieved by an intermediate product for the production of a bearing arrangement having the features of claim 5 and by a method for producing a bearing arrangement having the features of claim.
  • Preferred embodiments of the invention are described in the subclaims, in the description or in the figures however, other features shown in the subclaims or in the description or the figures may individually or in any combination constitute an object of the invention, unless the context clearly indicates otherwise.
  • a bearing assembly comprising a bearing, in particular a rolling bearing or a sliding bearing, with an inner ring and an outer ring and at least one arranged on the outer ring attachment, wherein the outer ring has a radially outer surface and an axially outer surface, wherein the attachment is attached to the radially outer surface of the outer ring at this.
  • Such a bearing arrangement allows a pronounced adaptability with a simultaneously simple and gentle manufacturability.
  • the aforementioned bearing arrangement comprises a bearing which can be configured as a rolling bearing or as a slide bearing.
  • Such bearings are known per se and can be designed, for example, in a non-restrictive manner as ball bearings, such as ball bearings, roller bearings or arbitrarily shaped plain bearings.
  • the bearing has an inner ring and an outer ring in a manner known per se.
  • a rolling element is arranged between the inner ring and the outer ring.
  • the bearing has an attachment.
  • the attachment may be a receptacle or a holding element for a functional element of the bearing, in particular for a sensor, which may allow the region of the sensorized bearings.
  • the attachment may comprise an annular sensor receptacle.
  • the attachment may have a ring having shaped portion which is radially aligned and with a designated planar surface holding portion which is axially aligned, be connected.
  • the axially aligned holding portion may be fixed to the outer ring.
  • the outer ring has a radially outer surface and an axially outer surface.
  • a radially outer surface should in particular mean that the surface points outward in the radial direction and is thus arranged in an axial plane.
  • an axially outer surface should mean, in particular, that the surface faces outward in the axial direction and is thus arranged in a radial plane. It is understood by those skilled in the art that the outer ring has at least two oppositely positioned axially outer surfaces and also more than one radially outer surface may be provided without departing from the scope of the invention.
  • the attachment is attached to the radially outer surface of the outer ring at this.
  • this embodiment is based on the prior art and offers significant advantages.
  • the bearing can be provided with an outer ring and an inner ring and optionally arranged therebetween rolling elements.
  • the attachment can be attached to the radially outer surface. This can be realized, for example, by integrally molding the attachment onto the outer ring or constructing it additively on the outer ring, or by positioning and fixing a prefabricated attachment on the outer ring, for example by means of a welding process.
  • the attachment is positioned on the radially outer surface or is formed, the attachment can be particularly advantageous. Because in a radially outer position is usually comparatively much space available, so that arranging an attachment prepares no problems and even for a additive process or a welding process required process peripherals can be arranged easily.
  • an attachment of the attachment to the radially outer surface may allow the axially outer surface or the axially outer surfaces of the outer ring remain free.
  • the cover can be aligned in particular in the radial direction and at least partially cover the bearing.
  • the area can be covered, which is between see the inner ring and the outer ring. This allows a particularly gentle manufacturability of the bearing assembly.
  • the cover or the covers is usually provided only temporarily during the attachment of the attachment and can be removed after the preparation of the bearing assembly again.
  • the cover to the bearing by corresponding sealing elements such as one or more O-rings sealed.
  • the attachment By positioning the attachment on a radially outer surface further offers the advantage that this or a part thereof, insofar as it is arranged in a groove, may have a radial outer diameter which is smaller than the radial outer diameter of the bearing or of the outer ring, about a range of 0, 1 mm to 0.2 mm.
  • production-specific advantages can result, for example, by eliminating a mechanical post-processing of the attachment.
  • the attachment is formed of a fusible or curable material.
  • a particularly simple manufacturability can be made possible, since the attachment can be produced in this embodiment, in particular by an additive method.
  • an additive method applicable here, reference is made to the detailed description of the method.
  • a fusible material which has proven to be particularly advantageous for storage applications, for example, a steel, such as known under the name 1.4404 or X2CrNiMo17-12-2 steel material to call.
  • This material can be provided, for example, as a powder and thereby advantageously processed by an additive method and processed into an attachment, such as a sensor holder.
  • an attachment such as a sensor holder.
  • such a material can be long-term stable in the case of a bearing, such as a slide bearing or roller bearing.
  • this material has the additional advantage that it can enable shielding of the sensor, so that the structure can be simplified.
  • the predefined steel material may have a grain size D10 in a range of 15 ⁇ m, and / or the predefined steel material may have a grain size D50 in a range of 30 ⁇ m and / or the predefined steel material may have a grain size D90 in a range of 45 pm, wherein the powder size may be determinable in a manner known per se by laser diffractometry.
  • a curable material it is possible, for example, to use a radiation-curable plastic, such as a radiation-curable resin, which is hardened in a radiation-induced manner after appropriate positioning.
  • the attachment is made by an additive process and has a support structure with cavities disposed therein, wherein the cavities are formed in a honeycomb structure.
  • the annular region or even the holding region can be formed in this structure.
  • the support structure delimiting the cavities has a hexagonal honeycomb structure, which is approximately comparable to honeycombs.
  • a high stability can be made even with a support structure which is formed of relatively little material.
  • This refinement can furthermore, for example in an additive method, for example a laser sintering, make it possible to save a great deal of production time since, for example, the raw material can remain in the cavities, which can make the production method particularly economical.
  • a honeycomb structure may be advantageous, since inside the points or the parts of the support structure are optimally networked with each other, which can lead to a high stability.
  • honeycomb structure which may preferably be provided, however, further structures may be preferred in which the cavities have a tubular orientation or a tubular course and are formed in parallel. Examples are about cylindrical structures or triangular structures in a cross section through the cavities. It may be provided that there is no open honeycomb structure, but that an outer closed surface of the attachment, for example in a thickness of 0, 1 mm, is present.
  • Such a structure may further allow the attachment formed, for example, as a sensor receptacle, if the sensors are ejected with plastic, the material makes a good connection with the attachment. Because the particular laser-sintered attachment can be provided with structural elements that favors mounting of the sensors. These structures do not have to be smooth. If now in a further operation, the sensors are encapsulated in plastic favors the roughened surface or introduced retaining lugs good adhesion of the plastic.
  • the attachment may be a sensor receptacle and to have at least one fastening means for attaching the sensor and / or at least one cable feedthrough.
  • the attachment or the sensor receptacle may have a particularly high functionality and allow a particularly advantageous connection of the sensor.
  • the sensor and any cables can be arranged in a particularly defined manner, which can prevent damage during operation or significantly reduce the risk thereof.
  • This embodiment can be implemented particularly advantageously if the attachment is produced by an additive method.
  • the fastening means these can be designed, for example, to fix the sensor by means of a snap connection or latching connection.
  • webs, brackets or similar locking means may be provided which can interact with an undercut of the sensor.
  • the attachment can be provided such that a plurality of sensors can be accommodated, which can be positioned in a freely selectable configuration. For example, these can be staggered and do not necessarily have to be arranged side by side or one behind the other. With regard to the cable bushing, this can be a breakthrough or even a groove. These may, for example, be arranged adjacent to the fastening means, such as snap-in hooks, due to a simpler structure.
  • fastening means such as snap-in hooks
  • the present invention further provides an intermediate product for the production of a bearing arrangement as described above, wherein the intermediate product has a bearing, in particular a roller bearing or a slide bearing, with an inner ring and an outer ring, wherein the outer ring has a radially outer Surface and having an axially outer surface, wherein on at least one axially outer surface of the outer ring, the bearing is at least partially covering cover provided.
  • a bearing in particular a roller bearing or a slide bearing
  • the outer ring has a radially outer Surface and having an axially outer surface, wherein on at least one axially outer surface of the outer ring, the bearing is at least partially covering cover provided.
  • such an intermediate product is free of an attachment, such as a sensor receptacle, on the outer ring.
  • the cover can cover the area between the inner ring and the outer ring and thus prevent dirt particles or dirt from getting into the region between inner ring and outer ring when arranging an attachment to a radially outer surface of the outer ring.
  • an intermediate product can prevent excessive heat stress of the bearing in arranging the attachment.
  • the intermediate product can allow a particularly gentle arrangement of the attachment to the bearing.
  • an area on the radially outer surface of the outer ring, which is intended to be provided with an attachment the average roughness R a or a Mitauenhigh value in a range of> 2.0 pm, preferably in a range of> 3.2 pm.
  • the average roughness can be determined for example by optical methods or according to DIN 4287 with the Tastschnittbacter.
  • a radially outer surface often at least has an area that lies in the aforementioned roughness range. This can be used by a previously described intermediate product to arrange the attachment in a particularly advantageous manner in this area.
  • the aforementioned roughness values allow a particularly good adhesion of the attachment. This can be of great advantage in storage applications in particular and allow high long-term stability of the bearing assembly formed from the intermediate product.
  • the subject of the present invention is also a method for producing a bearing arrangement as described above, wherein a bearing, in particular a roller bearing or a slide bearing, is provided with an inner ring and an outer ring, wherein the outer ring has a radially outer surface and an axially outer Surface having an attachment is disposed on the radially outer surface.
  • a bearing arrangement can be created in a particularly gentle and adaptive way, which has a bearing with an attached to the outer ring attachment, such as a sensor receptacle.
  • an attachment is provided, wherein the attachment is fixed to the radially outer surface, in particular welded.
  • a bearing such as in particular a roller bearing or a plain bearing, can be provided first in a manner known per se to a person skilled in the art.
  • the attachment can be made available. This can be formed by conventional methods or additive and then fixed to the radially outer surface of the outer ring.
  • the attachment with respect to the outer ring of a uniform material or of different materials and thus to further increase the adaptivity.
  • bearings or the outer ring of the bearing and the attachment can be made of different steel grades.
  • the outer ring can be made from the steel material designated as 100Cr6, whereas the attachment can be formed from the steel material known under the designation 1 .4404 or X2CrNiMo17-12-2, as described above.
  • an additive or generative method may be understood as meaning, in particular, a process in which a component is built up in layers on the basis of digital 3D design data by the depositing or building up of material. Examples of such processes include, for example, 3D printing, under which often also laser sintering or laser melting or a
  • An additive manufacturing process differs significantly from conventional, erosive manufacturing methods. Instead of milling a workpiece out of a solid block, as is known in the case of abrasive methods, the components are in particular built up layer by layer from materials or raw materials in additive manufacturing processes, which are present as starting material, in particular fine powder. Such methods are used, for example, in so-called rapid prototyping or in series production. In most cases, a laser, such as a CO 2 laser, an Nd: YAG laser or a fiber laser, or else an electron beam source is used for processing such as, for example, melting the powdery raw material in particular. Using an additive method offers the particular advantage that the attachment can be produced in a simple manufacturing step.
  • a cover is arranged on at least one axially outer surface such that the cover at least partially covers the bearing.
  • the cover it can be provided that the area between the inner ring and the outer ring is covered by the cover.
  • Fig. 1 is a sectional view through a bearing assembly
  • FIG. 2 is a schematic representation showing an embodiment of a shaped as a sensor holder attachment.
  • FIG. 1 shows a purely sectional view through a bearing arrangement 10.
  • the bearing assembly 10 comprises a designed as a rolling bearing 12 with an inner ring 14 and an outer ring 16, wherein between the inner ring 14 and the outer ring 16, a rolling element 18 is arranged. Furthermore, it is shown that the outer ring 16, an attachment 20 is arranged.
  • the attachment 20 includes a radially directed annular portion 22 and an axially aligned holding portion 24.
  • the outer ring 16 has a radially outer surface 26 and axially outer surfaces 28, wherein the attachment 20 is attached to the radially outer surface 26 of the outer ring 16 thereon.
  • the holding region 24 has a region which is provided in a groove of the outer ring 16 and can not be seen in FIG.
  • FIG. 1 also shows that a cover 30, which is sealed against the outer ring 16 by a sealing element 32, is arranged on both axially outer surfaces 28.
  • the provision of such covers 30 allows a particularly gentle manufacturability.
  • the covers 30 can be removed on a finished bearing assembly 10.
  • FIG. 2 also shows an attachment 20 designed as a sensor receptacle. This has for receiving a sensor fastening means 34 in particular for forming a latching connection. Accordingly, the fastening means 34 may be configured as retaining lugs or latching noses. To achieve this It may be advantageous if the attachment 20 is made by an additive method.

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

Abstract

L'invention concerne un ensemble (10) palier, comprenant un palier (12), tel qu'en particulier un palier à roulement ou un palier lisse, pourvu d'une bague intérieure (14) et d'une bague extérieure (16) et d'au moins une pièce rapportée (20) agencée sur la bague extérieure (16). La bague extérieure (16) présente une surface (26) radialement extérieure et une surface (28) axialement extérieure, la pièce rapportée (20) étant fixée à la bague extérieure (16) par la surface (26) radialement extérieure de ladite bague.
PCT/DE2017/100932 2016-11-11 2017-11-03 Ensemble palier et procédé de fabrication d'un ensemble palier de ce type WO2018086654A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102016222176.0A DE102016222176A1 (de) 2016-11-11 2016-11-11 Lageranordnung und Verfahren zum Herstellen einer solchen
DE102016222176.0 2016-11-11

Publications (1)

Publication Number Publication Date
WO2018086654A1 true WO2018086654A1 (fr) 2018-05-17

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2017/100932 WO2018086654A1 (fr) 2016-11-11 2017-11-03 Ensemble palier et procédé de fabrication d'un ensemble palier de ce type

Country Status (2)

Country Link
DE (1) DE102016222176A1 (fr)
WO (1) WO2018086654A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018119504A1 (de) * 2018-08-10 2020-02-13 Schuler Pressen Gmbh Verfahren zum Fertigen eines Gleitlagers und Gleitlager

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11194009A (ja) * 1993-01-29 1999-07-21 Nippon Seiko Kk 回転角度検出装置付転がり軸受
JP2002242947A (ja) * 2001-02-16 2002-08-28 Koyo Seiko Co Ltd 転がり軸受
EP2803439A1 (fr) * 2013-05-15 2014-11-19 Aktiebolaget SKF Procédé de fabrication d'un roulement et roulement fabriqué selon un tel procédé
DE102014210201A1 (de) 2014-05-28 2015-12-03 Schaeffler Technologies AG & Co. KG Lageranordnung und zugehöriges Herstellungsverfahren

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11194009A (ja) * 1993-01-29 1999-07-21 Nippon Seiko Kk 回転角度検出装置付転がり軸受
JP2002242947A (ja) * 2001-02-16 2002-08-28 Koyo Seiko Co Ltd 転がり軸受
EP2803439A1 (fr) * 2013-05-15 2014-11-19 Aktiebolaget SKF Procédé de fabrication d'un roulement et roulement fabriqué selon un tel procédé
DE102014210201A1 (de) 2014-05-28 2015-12-03 Schaeffler Technologies AG & Co. KG Lageranordnung und zugehöriges Herstellungsverfahren

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