EP2198174A2 - Käfigsegment eines kunststoffkäfigs sowie wälzlager mit dem kunststoffkäfig - Google Patents
Käfigsegment eines kunststoffkäfigs sowie wälzlager mit dem kunststoffkäfigInfo
- Publication number
- EP2198174A2 EP2198174A2 EP08837691A EP08837691A EP2198174A2 EP 2198174 A2 EP2198174 A2 EP 2198174A2 EP 08837691 A EP08837691 A EP 08837691A EP 08837691 A EP08837691 A EP 08837691A EP 2198174 A2 EP2198174 A2 EP 2198174A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- cage
- cage segment
- segment
- plastic
- segments
- 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- Withdrawn
Links
- 239000004033 plastic Substances 0.000 title claims abstract description 53
- 238000005096 rolling process Methods 0.000 claims abstract description 72
- 239000000463 material Substances 0.000 claims description 4
- 239000004696 Poly ether ether ketone Substances 0.000 claims description 3
- 229920002530 polyetherether ketone Polymers 0.000 claims description 3
- 235000001674 Agaricus brunnescens Nutrition 0.000 claims description 2
- JUPQTSLXMOCDHR-UHFFFAOYSA-N benzene-1,4-diol;bis(4-fluorophenyl)methanone Chemical compound OC1=CC=C(O)C=C1.C1=CC(F)=CC=C1C(=O)C1=CC=C(F)C=C1 JUPQTSLXMOCDHR-UHFFFAOYSA-N 0.000 claims 1
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 239000000314 lubricant Substances 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 230000001066 destructive effect Effects 0.000 description 3
- 238000001746 injection moulding Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000008961 swelling Effects 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
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
- F16C33/46—Cages for rollers or needles
- F16C33/50—Cages for rollers or needles formed of interconnected members, e.g. chains
- F16C33/502—Cages for rollers or needles formed of interconnected members, e.g. chains formed of arcuate segments retaining one or more rollers or needles
-
- 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
- F16C33/46—Cages for rollers or needles
- F16C33/4605—Details of interaction of cage and race, e.g. retention or centring
-
- 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
- F16C19/383—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 with tapered rollers, i.e. rollers having essentially the shape of a truncated cone
- F16C19/385—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 with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings
- F16C19/386—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 with tapered rollers, i.e. rollers having essentially the shape of a truncated cone with two rows, i.e. double-row tapered roller bearings in O-arrangement
-
- 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
- F16C2208/00—Plastics; Synthetic resins, e.g. rubbers
- F16C2208/20—Thermoplastic resins
- F16C2208/36—Polyarylene ether ketones [PAEK], e.g. PEK, PEEK
-
- 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
- F16C2226/50—Positive connections
- F16C2226/70—Positive connections with complementary interlocking parts
- F16C2226/74—Positive connections with complementary interlocking parts with snap-fit, e.g. by clips
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2300/00—Application independent of particular apparatuses
- F16C2300/10—Application independent of particular apparatuses related to size
- F16C2300/14—Large applications, e.g. bearings having an inner diameter exceeding 500 mm
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C2360/00—Engines or pumps
- F16C2360/31—Wind motors
Definitions
- the invention relates to a cage segment of a plastic cage for a Wälzla- ger, in particular for a slewing bearing, wherein a plurality of such cage segments to form the plastic cage in the circumferential direction frontally abutting arranged and / or arranged and wherein the cage segment has at least one pocket for a rolling element, and a rolling bearing with a plastic cage with such Käfigsegmen- th.
- Rolling bearings of known types usually comprise an inner ring, an outer ring, a plurality of rolling elements, which are rotatably mounted between inner ring and outer ring, and - optionally - a cage for guiding the rolling elements.
- the cage ensures that the rolling elements do not abut each other, but are guided at a predefined distance from each other.
- large rolling bearings ie rolling bearings with an outer or pitch circle diameter of, for example, greater than 500 mm, the challenge arises to guide the correspondingly heavy-trained rolling elements reliably by a cage.
- a possible embodiment for a cage of a slewing bearing made of metal is disclosed, for example, in published patent application DE 155 74 80 A1, which discloses a roller bearing cage with two axially spaced-apart end rings with circumferentially distributed aligned brackets for non-rotatably receiving end pins of webs shows, wherein the webs together with the end rings pockets for the rolling elements.
- plastic cages As an alternative to cages made of metal, plastic cages are also known, which are produced in one piece, in particular in the case of small rolling bearings, but are also composed of several cage segments in the case of large rolling bearings.
- the plastic cage is formed from a plurality of plastic cage segments, which abut each other in the installed state, wherein in a gap-free juxtaposition of the cage segments of the plastic cage between the adjacent end faces of a last and a first segment remains a gap, wherein the mean extent of this gap in the circumferential direction Room temperature is a value between 0.15% and 1% of the total circumference of a circle, which runs centrally through the juxtaposed segments.
- a post-published prior art is formed by the German patent application DE 10 2006 0229 51.7 of the applicant.
- the invention is based on the object to propose a cage segment for a plastic cage, which shows an improved functional behavior over the known solutions.
- a cage segment of a plastic cage for a rolling bearing is disclosed, wherein the cage segment is designed and / or suitable for use in a slewing bearing.
- the slewing bearing preferably has a pitch circle diameter of more than 500 mm, in particular more than 1,000 mm.
- the rolling bearing is used for example for supporting the rotor in a wind turbine.
- the cage segment is designed such that, in order to form the plastic cage, a plurality of the cage segments are arranged and / or arranged to be adjacent and / or abutting one another in the direction of rotation in the direction of rotation.
- plastic segments and bearing rings of the rolling bearing are tuned such that the plastic segments are not subjected to pressure on each other, but rather see a gap between the cage segments between the end faces of the cage segments remains.
- the cage segment has at least one pocket, preferably several pockets for each min. a rolling body on.
- the cage segment has a connection device which is connected in one piece, in particular in a material-like manner, to the cage segment and which is designed in such a way that that similar cage segments are coupled to each other like a chain to form the plastic cage.
- the connecting device is preferably designed so that the connection can be released when a limit force is exceeded and can also connect or engage again.
- the connecting device ensures that individual cage segments can not distanced each other too much so that the negative effect described is ruled out.
- the connecting device is designed so that a limited clearance is made possible between two abutting cage segments in the direction of rotation.
- the limited play - or the clearance - allows the formation of a gap between the end faces of the end abutting or adjacent plastic cage segments.
- the limited clearance is realized in a size that is within the range of maximum temperature and / or swelling extent of a single one of the cage segments under normal operating conditions.
- Both Normal operating conditions are preferably temperatures between eg 20 0 C and 80 0 C, but less than 150 0 C, expected.
- the limited play preferably has a size of 0.2% to 2%, in particular 0.5% to 1, 5% and in particular 1% of the circumferential length of the cage segment, ie a single cage segment.
- the circumferential length is preferably measured as a circle length between the two end faces of the cage segment in the height of the pitch circle diameter of the inserted rolling elements.
- two cage segments are connected via the connecting device so that at least the required clearance remains between them, which is required for the swelling and for the greater expansion of a single cage segment over the other bearing components with other materials, in particular the bearing rings and the rolling elements
- the limited game is equal to or minimally larger than the possible total extent of the plastic cage is formed in the direction of circulation.
- the cage segment has transverse webs and side ring sections, wherein the transverse webs connect the side ring sections in one piece and / or one material, so that the space between the transverse webs forms at least one or more pockets for the rolling element or bodies.
- the sidebands and / or the transverse webs in the radial extent to the axis of rotation of the rolling bearing are tuned so that a large space remains, can be supplied by the lubricant to the rolling bearing or the rolling elements.
- the side ring sections and the transverse webs are arranged in the radial direction overlapping the pitch circle diameter of the rolling elements and cover approximately one third of the rolling element diameter.
- the transverse webs are designed so that the rolling elements in the longitudinal extent of the rolling elements only partially, in particular only in the end regions of the rolling elements come to rest on the transverse webs.
- the transverse webs are in particular realized so that a central part of the rolling elements runs without contact to the transverse webs.
- the transverse webs in the circumferential direction of the plastic cage in the middle part are reduced in diameter or formed waisted.
- This embodiment has the advantage that in the central part of the rolling elements of the transverse web does not touch the rolling elements and thus no lubricant is stripped off.
- the connecting device comprises on both sides of the side ring sections offset in the axial direction and integrally formed on the side ring sections tabs which engage around a further cage segment to be connected axially on the outside.
- the tabs are congruent or formed as an extension to the side ring sections, in particular they have the same radial extension as the side ring sections.
- the free ends of the molded tabs are elastic and allow a resilient yielding in the axial direction.
- the tab has an axially directed to the inner region of the cage segment retaining lug.
- the connecting device has counter-holding lugs, which are arranged on the axial outer side of the cage segment.
- the tabs with the retaining lugs are arranged on one side of the cage segment and the opposing retaining tabs on the other side of the cage segment so that, when the cage segments are interlinked, tabs engage or overlap tabs.
- a tab and a counter-retaining nose are arranged on each page in running direction of the cage segment.
- the loads are deflected axially, so that the holding lugs can slide over the counterhold lugs and catch behind the counterhold lugs.
- the entanglement is preferably designed so that it is to be solved by a tensile force in the direction of rotation when reaching a certain limit force non-destructive.
- dissolved cage segments can close automatically when applying a compressive force in the direction of rotation again.
- At least one sliding shoe is formed on at least one of the transverse webs, preferably on some transverse webs, in particular on all transverse webs, which is designed for sliding support of the cage segment on a bearing ring, in particular an outer ring of the rolling bearing.
- two sliding shoes are formed on at least one transverse web, which are arranged spaced apart in the axial direction.
- the sliding shoes are positioned so that they are arranged in the edge region of the pocket formed by the transverse webs.
- the sliding shoes are arranged axially on the outside to form a pressure ellipse formed in normal operation by the rolling elements and the bearing ring.
- the sliding block is formed in an axial plan view in the form of a filled funnel or a mushroom and / or defines on the radial outer side a continuous, in cross-section perpendicular to the rotation axis curved, preferably non-point curved curved contact surface.
- the contact surface has a preferably constant or at least continuous radius of curvature course, which is formed in the same direction or always in the same direction to the radius of curvature of the bearing ring, but shows a smaller radius of curvature.
- the contact surface has a radius of curvature which is less than 50%, preferably less than 30% and in particular less than 10% of the radius of curvature of the raceway of the bearing ring.
- the reduced radius of curvature has the advantage that the sliding shoe bears on the bearing ring with only a middle part of the sliding shoe, so that lubricant can be pushed between the sliding block and the ring during operation in the direction of rotation through the edge regions of the sliding shoe.
- the side surface of the sliding shoe facing an adjacent rolling element is designed as a guide surface for the rolling element.
- the radius of curvature of the guide surface corresponds at least in sections to the rolling-element radius or is designed to be up to 10% larger and / or more slanted.
- the guide of the cage segments between the raceway of an outer ring and inwardly over the rolling elements.
- the cage segment is formed so that the rolling element is wrapped by the funnel-shaped sliding shoes at least in a portion radially outward to the pitch circle diameter.
- the cage segment on guide knobs which are directed radially inwards and which for
- the guide knobs are preferably in similarly spaced apart in the axial direction as the sliding shoes. Also preferably, it is provided that only every second or every nte transverse web carries such guide knobs, so that transverse webs can be provided without guide knobs.
- the guide knobs have at their free end gleitreibungsreduromhotde features, in particular rundowns on.
- the inwardly directed guide knobs are designed in length such that they ensure additional support of the plastic cage or the cage segment only in special cases. Such special cases are for example in deformations of the plastic cage by particularly high forces or after a certain wear of the leading inside of the shoes before.
- guide webs which are configured in the circumferential direction as skids, are arranged on the cage segments outwardly in relation to the outer ring raceway and ensure almost optimal sliding in the bearing raceway on a lubricating film.
- the guide knobs or spacer webs inwards to the inner ring raceway are well rounded to provide good sliding properties when touched.
- the cage segment is produced in an injection molding process, wherein as the material, for example, a thermoplastic material, in particular with a glass / carbon / aramid reinforcement, in particular polyether ether ketone having a fiber content between 10 to 50% by weight, is used ,
- a thermoplastic material in particular with a glass / carbon / aramid reinforcement, in particular polyether ether ketone having a fiber content between 10 to 50% by weight
- the side ring sections and the transverse webs of the cage segment as well as the guide knobs and the sliding shoes each have the same web cross-sections.
- Another object relates to a rolling bearing with a plastic cage having the features of claim 18, wherein the plastic cage of a
- the rolling bearing is preferably designed as a backlash-free and / or tensioned roller bearing, in particular designed for rotors of wind turbines, in particular, it is a double-row tapered roller bearing, preferably with a large pressure angle in a range of, for example, 45 °.
- the leadership of the cage segments is preferably carried out on the one hand by the support on the sliding blocks on the outer ring and on the other hand on the contact of the guide surfaces on the rolling elements or on the guide knobs.
- Figure 1 is a schematic three-dimensional plan view of a cage segment as an embodiment of the invention
- Figure 2 is a schematic three-dimensional plan view of radially outward on a section of a plastic cage with the cage segments in Figure 1 in a connection region;
- Figure 3 is a schematic three-dimensional plan view of radially outward on a cage segment of the plastic cage in Figure 2;
- Figure 4 is a schematic three-dimensional axial, partially cut
- Figure 5 is a schematic, three-dimensional sectional view taken along the line BB in Figure 1; 6 shows a sectional view along the section line EE in Figure 5.
- FIG. 1 shows a three-dimensional, schematic representation of a cage segment 1 for a plastic cage 2 (FIG. 2) of a roller bearing, which is designed as a large rolling bearing with a pitch circle diameter of greater than 500 mm and is used, for example, for mounting rotors in wind power plants.
- the rolling bearing is formed without play and / or biased.
- the cage is formed of polyether ether ketone.
- each similar cage segments 1 in the direction of rotation frontally adjacent or abutting be arranged and hooked together to form a rotating plastic cage 2 for guiding Wälzkör- pern 3 ( Figure 6).
- the plastic cage 2 is shown in the region of a connection point 4, on which two cage segments 1 are detachably connected to one another.
- Each cage segment 1 has two laterally extending side ring sections 5, which are formed as sidebands and are connected to one another via transverse webs 6, so that pockets 7 for the rolling bodies 3 (FIG. 6) are formed between the transverse webs 6.
- each cage segment has four pockets 7 and five transverse webs 6.
- end faces 8 of the cage segments 1 are formed by the transverse webs 6, wherein the end faces 8 of adjacent cage segments 1 abutting and / or adjacent are arranged. More specifically, the end faces 8 are not formed over the entire surface abutting, but each have an investment contour 9 in the Randberei-, wherein in the central region always a free gap 10 remains, which is useful, for example, for a lubricant flow.
- the connection point 4 is produced by a connecting device, which is formed by lugs 11 with retaining lugs 12 on one of the cage segments 1 and counter-holding lugs 13 on another cage segment 1.
- the tabs 11 are arranged offset in parallel to the side ring sections 5 in the axial direction and are integrally connected to these at one end, with a ramp 14 forming on the axial end side.
- the tabs 11 engage around the outside of the adjacent cage segment 1 and have at the elastic, free ends of the retaining lugs 12, wherein the retaining lugs 12 of the two tabs 11 are arranged facing each other.
- the counter-holding lugs 13 which are formed in an end region of the side ring sections 5 of the adjacent cage segment 1, holding encompassed.
- the tabs 11, the position of the holding lugs 12 and the counter-holding lugs 13 are formed with respect to the end face 8, in particular in the region of the contact contour 9, such that the connection point 4 has a limited clearance arrow 15 in the hooked state, so that the two adjacent cage segments 1 in the limited game 15 in the direction of rotation can move relative to each other.
- the limited play 15 is of the size thereby designed so that it is sufficient to compensate for longitudinal expansion of one of the cage segments 1 in the circumferential direction due to temperature and / or spring effects. Functionally, the game 15 is chosen so that a change in length of one of the cage segments 1 at a temperature increase of eg 20 0 C to eg max. 150 0 C can be compensated. In absolute terms, the limited clearance 15 is defined in the range between 0.2% and 2% of the circumferential length of one of the cage segments 1.
- junction 4 Another feature of the junction 4 is that it can be solved without destroying a certain limit tensile force. So it is possible that the plastic cage at a temporary overload of the rolling bearing opens to give in to this overload. In further operation, a compressive force acting in the direction of rotation suffices to close the plastic cage at the opened connection point 4 again.
- the holding lugs 12 or counter-holding lugs 13 are formed on the hook-like flanks in the representation shown in Figure 2 ramp-like, so that they can slide over each other both when opening and closing non-destructive.
- the cage segment 1 in a radial plan view from the inside, wherein it can be seen that at one free end of the cage segment 5, the holding tabs 13 and the tabs 11 are arranged on the other side of the cage segment.
- the transverse webs 6 are in cross-section in the circumferential direction in a middle part 16, which constitutes between one third and half of the total length of the crosspiece 6, tapered or formed waisted.
- This middle part 16 is - functionally considered - designed so that the rolling elements 3 are arranged or run without contact to this, the leadership of the rolling elements 3 takes place exclusively on edge regions 17.
- This design has the advantage that sufficient space remains in the middle part 16 for the passage of lubricant to the rolling body 3, in particular no lubricant is scraped off at the transverse webs 6 in the region of the middle part 16.
- FIG. 4 shows a schematic axial plan view of the cage segment 5 with a partial section along the section line I-I in FIG. 3, wherein it can again be seen that the side ring sections 5 and. Tab 11 occupy the same or substantially the same extent in the radial direction.
- the central sliding shoes 18 have a mushroom-shaped or funnel-like shape in lateral plan view, which comprises a radially outwardly facing contact surface 20 for engagement with the outer ring, not shown.
- the contact surface 20 is curved and abuts with its center on the raceway of the outer ring.
- the radius of curvature of the contact surface in the lateral view shown in Figure 4 is substantially smaller than the radius of curvature of the raceway of the outer ring formed, forming triangular-like free spaces between the contact surface 20 and the raceway of the outer ring in the cross section shown, so that during operation lubricant under the sliding shoes 18 is pushed.
- the cage segment 5 guide knobs 22 which are dimensioned in their radial length so that they are arranged at a normal operation of the rolling bearing spaced from the track of the inner ring. Only with very strong deformations of the rolling bearing, for example under heavy use or wear of the sliding blocks 18, 19 in the region of the guide surfaces 21 or the contact surfaces 20 are the guide nubs 22 on the inner ring. In order to minimize the sliding friction there, the free end portions of the guide knobs 22 are rounded.
- the guide knobs 22 are formed only on the outer circumferential and the central transverse web 6 in the circumferential direction. The intermediate transverse webs 6 have no guide knobs.
- FIG. 5 shows the cage segment 1 in a schematic three-dimensional representation obliquely from radially inside.
- the sliding shoes 18, 19 are attached in the axial direction in such a manner on the edge side. orders and are dimensioned so narrow in the axial extent, so that they are arranged outside of an axial region in which usually results during operation, the pressure ellipse between the rolling elements 3 and raceway of the outer ring.
- This lateral positioning improves the lubrication of the rolling elements 3, since the effects of scraping on the sliding elements 18 and 19 in the loaded area of the rolling bodies 3 are minimized.
- the guide nubs 22 have in the view shown a rectangular basic shape.
- FIG. 6 shows a section along the direction of rotation along the section line EE in FIG. 5, wherein it can be seen that the roller body 3 designed as a tapered roller snuggles against and is guided by the radially inner side of the guide surfaces 21 of the sliding shoes 18 and 19 ,
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Rolling Contact Bearings (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102007048655A DE102007048655A1 (de) | 2007-10-10 | 2007-10-10 | Käfigsegment eines Kunststoffkäfigs sowie Wälzlager mit dem Kunststoffkäfig |
| PCT/DE2008/001653 WO2009046705A2 (de) | 2007-10-10 | 2008-10-07 | Käfigsegment eines kunststoffkäfigs sowie wälzlager mit dem kunststoffkäfig |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP2198174A2 true EP2198174A2 (de) | 2010-06-23 |
Family
ID=38885197
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP08837691A Withdrawn EP2198174A2 (de) | 2007-10-10 | 2008-10-07 | Käfigsegment eines kunststoffkäfigs sowie wälzlager mit dem kunststoffkäfig |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20100215298A1 (de) |
| EP (1) | EP2198174A2 (de) |
| CN (1) | CN102027252A (de) |
| DE (1) | DE102007048655A1 (de) |
| WO (1) | WO2009046705A2 (de) |
Families Citing this family (24)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008062913A1 (de) * | 2008-12-24 | 2010-07-01 | Schaeffler Technologies Gmbh & Co. Kg | Segmentkäfig |
| DE102009037420A1 (de) | 2009-08-13 | 2011-02-17 | Schaeffler Technologies Gmbh & Co. Kg | Käfigsegment für einen Kunststoffkäfig eines Wälzlagers und Wälzlager mit einem solchen Käfigsegment |
| DE102009037422A1 (de) | 2009-08-13 | 2011-02-17 | Schaeffler Technologies Gmbh & Co. Kg | Käfigsegment für einen Kunststoffkäfig eines Wälzlagers und Wälzlager mit einem solchen Käfigsegment |
| DE102009037421A1 (de) | 2009-08-13 | 2011-02-17 | Schaeffler Technologies Gmbh & Co. Kg | Käfigsegment für einen Kunststoffkäfig eines Wälzlagers und Wälzlager mit einem solchen Käfigsegment |
| DE102009056260A1 (de) | 2009-11-28 | 2011-06-01 | Schaeffler Technologies Gmbh & Co. Kg | Käfigsegment für einen Kunststoffkäfig eines Wälzlagers und Wälzlager mit einem solchen Käfigsegment |
| SK500272010A3 (sk) * | 2010-06-26 | 2012-01-04 | Psl, A. S. | Bearing with plastic segment cage |
| DE102011003419A1 (de) | 2011-02-01 | 2012-08-02 | Schaeffler Technologies Gmbh & Co. Kg | Ringförmiger Wälzlagerkäfig |
| DE102011080168B4 (de) * | 2011-08-01 | 2022-06-30 | Aktiebolaget Skf | Konzept für einen geschlitzten Lagerkäfig |
| DE102012207529A1 (de) * | 2012-05-07 | 2013-11-07 | Aktiebolaget Skf | Käfigsegment eines Kegelrollenlagers und Kegelrollenlager |
| JP2013238295A (ja) * | 2012-05-16 | 2013-11-28 | Jtekt Corp | 転がり軸受 |
| JP2013242018A (ja) * | 2012-05-22 | 2013-12-05 | Jtekt Corp | 転がり軸受用の分割保持器及びそれを用いた転がり軸受 |
| DE102012216001B4 (de) * | 2012-09-10 | 2015-06-18 | Aktiebolaget Skf | Stift zum Führen eines Zahnrads und Planetengetriebe |
| JP6142535B2 (ja) * | 2013-01-11 | 2017-06-07 | 株式会社ジェイテクト | 分割保持器及び分割保持器を備えたころ軸受 |
| DK2984357T3 (da) * | 2013-04-11 | 2019-11-11 | Skf Ab | Rulningsleje med i flere bursegmenter anbragte rullelegemer |
| WO2015073389A1 (en) * | 2013-11-13 | 2015-05-21 | Szuba Consulting, Inc. | Cageless bearings for use with mechanical devices |
| JP6295621B2 (ja) * | 2013-11-25 | 2018-03-20 | 株式会社ジェイテクト | 分割保持器及びころ軸受 |
| JP2015102153A (ja) * | 2013-11-25 | 2015-06-04 | 株式会社ジェイテクト | 分割保持器及びころ軸受 |
| CN105485173B (zh) * | 2014-09-15 | 2019-10-25 | 舍弗勒技术股份两合公司 | 轴承保持架和包括它的轴承 |
| CN104806636B (zh) * | 2015-05-12 | 2017-07-04 | 常州克劳诺斯特种轴承制造有限公司 | 轴承用保持架 |
| DE102016206072B4 (de) * | 2016-04-12 | 2018-02-22 | Schaeffler Technologies AG & Co. KG | Wälzlagerkäfig |
| DE102016208829A1 (de) | 2016-05-23 | 2017-11-23 | Schaeffler Technologies AG & Co. KG | Käfigsegment eines Wälzlagers |
| DE102016124430A1 (de) | 2016-12-15 | 2018-06-21 | Schaeffler Technologies AG & Co. KG | Wälzlagerkäfig |
| DE102017011303B4 (de) * | 2017-12-07 | 2026-02-19 | Interroll Holding Ag | Kugellagermodul und Verfahren zur Montage eines Kugellagermoduls |
| JP2024073329A (ja) * | 2022-11-17 | 2024-05-29 | Ntn株式会社 | 円すいころ軸受 |
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| US2969267A (en) * | 1956-10-23 | 1961-01-24 | Skf Svenska Kullagerfab Ab | Cage for rolling bodies in rolling bearings |
| FR1428198A (fr) * | 1964-03-17 | 1966-02-11 | Rothe Erde Eisenwerk | Cage à maillons pour roulement à billes ou à rouleaux |
| US3586406A (en) * | 1969-07-14 | 1971-06-22 | Roller Bearing Co Of America | Tandem roller bearing |
| US4239304A (en) * | 1979-03-28 | 1980-12-16 | The Torrington Company | Bearing split cage |
| EP0016880B1 (de) * | 1979-03-28 | 1982-05-26 | The Torrington Company Limited | Verbesserungen an Walzlagern |
| DE3821037A1 (de) * | 1988-06-22 | 1989-12-28 | Schaeffler Waelzlager Kg | Kaefig fuer waelzlager |
| DE3911671A1 (de) * | 1989-04-10 | 1990-10-11 | Schaeffler Waelzlager Kg | Waelzlagerkaefig |
| JP3668274B2 (ja) * | 1995-02-08 | 2005-07-06 | 日本トムソン株式会社 | 保持器付きころ |
| DE10246825B4 (de) * | 2002-10-08 | 2019-02-14 | Aktiebolaget Skf | Käfig für ein Wälzlager |
| EP1646794A4 (de) * | 2003-07-08 | 2008-01-23 | Ged Internat Inc | Gegendrehende wälzlageranordnung |
| JP4464767B2 (ja) * | 2004-02-23 | 2010-05-19 | 日本トムソン株式会社 | 保持器付きころ |
| DE102004026291A1 (de) * | 2004-05-28 | 2005-12-15 | Fag Kugelfischer Ag & Co. Ohg | Käfig mit Rollen |
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| DE102006022951A1 (de) * | 2006-05-17 | 2007-11-22 | Schaeffler Kg | Käfigsegment für einen Käfig eines Wälzlagers |
| GB2448687B (en) * | 2007-04-23 | 2011-07-06 | Cooper Roller Bearings Company | A Cage for a roller bearing and a roller bearing |
| TWM324136U (en) * | 2007-06-27 | 2007-12-21 | Thai Dieng Industry Co Ltd | Unidirectional bearing |
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2007
- 2007-10-10 DE DE102007048655A patent/DE102007048655A1/de not_active Withdrawn
-
2008
- 2008-10-07 CN CN200880111847XA patent/CN102027252A/zh active Pending
- 2008-10-07 US US12/682,173 patent/US20100215298A1/en not_active Abandoned
- 2008-10-07 WO PCT/DE2008/001653 patent/WO2009046705A2/de not_active Ceased
- 2008-10-07 EP EP08837691A patent/EP2198174A2/de not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO2009046705A2 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009046705A2 (de) | 2009-04-16 |
| WO2009046705A3 (de) | 2009-08-27 |
| DE102007048655A1 (de) | 2008-02-07 |
| CN102027252A (zh) | 2011-04-20 |
| US20100215298A1 (en) | 2010-08-26 |
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