DE102013226748B4 - Inner ring for a radial spherical plain bearing and method for mounting an inner ring for a radial spherical plain bearing - Google Patents

Abstract

Inner ring (1) for a radial spherical plain bearing (2) with the following features: at least one first inner ring segment (3) and at least one second inner ring segment (4); wherein the inner ring segments (3, 4) each have a contact surface (5, 6, 7, 8) on which they can be joined and wherein the inner ring segments (3, 4) each have a partial peripheral surface (9, 12) which is joined together in a state at least partially form a peripheral surface (13) of the inner ring (1), the inner ring segments (3, 4) each having at least one end face (11, 12) directed in an axial direction (M); and wherein the peripheral surface (13) is curved radially outward; and at least one fastening bore (14) which is designed to receive a fastening element (15) in order to connect the first inner ring segment (3) and the second inner ring segment (4) to one another so that they are joined together at the contact surfaces (5, 6), the fastening bore (14) extending from the end face (1) of the first inner ring segment (3) into the inner ring (1).

Description

Exemplary embodiments relate to an inner ring for a radial spherical plain bearing and a method for assembling an inner ring for a radial spherical plain bearing.

Radial spherical plain bearings are used in many applications where compensating movements between a shaft and a housing are to be compensated. Furthermore, rotating or pivoting movements can be performed with a radial spherical plain bearing. For this purpose, a radial spherical plain bearing usually has an inner ring and an outer ring. These can be moved towards one another along their sliding surfaces. The inner ring usually has a circumferential surface curved radially outwards as the sliding surface. On the outer ring, a circumferential surface pointing radially inwards is correspondingly designed as a sliding surface. This is also suitably curved radially outwards.

In conventional solutions, the inner and outer ring are usually divided into two ring segments to enable simple assembly of the radial spherical plain bearing on a shaft. For assembly on the shaft, the inner ring segments are each arranged on the shaft radially from the outside so that they touch at their contact surfaces. After arranging, the inner ring segments are connected to each other. For this purpose, in conventional radial spherical plain bearings, fastening elements are introduced into the peripheral surface directed radially outwards. The circumferential surface of the inner ring directed radially outward forms the sliding surface. In the case of conventional split inner rings, the sliding surface is therefore interrupted by the fastening elements. As a result, the load-carrying capacity of the spherical plain bearing may be reduced compared to a spherical plain bearing of the same size in which the inner ring is not divided and reconnected. However, undivided inner rings or spherical plain bearings are more difficult to assemble or replace when worn.

document DE 10 2006 044 637 A1 discloses a spherical plain bearing having an outer ring and an inner ring mounted in this. The outer ring and the inner ring are designed as split rings and each have a plurality of outer ring parts or inner ring parts. The inner ring is held together by at least one split clamping ring.

There is therefore a need to find a compromise between easy assembly of a radial spherical plain bearing and an improvement in the load capacity of the bearing.

An inner ring according to claim 1 and a method for assembling an inner ring according to claim 10 meet this need.

Exemplary embodiments relate to an inner ring for a radial spherical plain bearing. The inner ring includes at least a first inner ring segment. Furthermore, the inner ring comprises at least one second inner ring segment. The inner ring segments each have a contact surface on which they can be joined. The inner ring segments each have a partial peripheral surface. In an assembled state, these partial circumferential surfaces at least partially result in a circumferential surface of the inner ring. Furthermore, the inner ring segments each have at least one end face. This is directed in an axial direction. The peripheral surface is curved radially outwards. The inner ring also includes a mounting hole. This is designed to accommodate a fastener. The first inner ring segment and the second inner ring segment can be connected to one another by means of the fastening element, so that they are joined together at the contact surfaces. The mounting hole extends from the end face of the first inner ring segment into the inner ring.

The fastening bore and thus later also the fastening element are introduced into the first inner ring segment from the end face of the first inner ring segment. As a result, the fastening element or the fastening bore are not introduced on the peripheral surface directed radially outward. The circumferential surface directed radially outward forms the sliding surface of the inner ring, at least in sections. In some exemplary embodiments it can thus be brought about that the sliding surface is not interrupted or reduced in size by fastening elements or fastening bores. In other words, two inner ring segments can be connected to one another from the side or from an axial direction. For this purpose, the fastening bore can extend in an aligned extension into the second inner ring segment in the assembled state of the inner ring segments. As a result, in some exemplary embodiments, the entire circumferential surface of the inner ring, which is directed radially outward, can be used as a sliding surface. In some exemplary embodiments, therefore, a compromise between a structural size, an improvement in the mountability and an increase in the load capacity can be improved.

An inner ring for a radial spherical plain bearing can have a spherical surface as a radially outwardly curved surface. In combination with an oppositely curved, radially inward surface, this can Outer ring allow the axial and radial sliding mobility of the radial spherical plain bearing. The outer ring slides on the inner ring. With the radial spherical plain bearing, a shaft can be pivoted and rotated relative to a housing. The shaft is accommodated in the inner ring. The inner ring has a bore to accommodate the shaft. The bore can be arranged, for example, concentrically to an axial direction or axis of rotation of the inner ring. The outer ring can be pressed into the housing, for example.

In some further exemplary embodiments, at least one fastening hole is aligned at an angle to the contact surface. In some exemplary embodiments, it can thus be made possible, for example, for the inner ring segments to be securely connected to one another. For example, the fastening hole can be arranged in an angular range to the contact surface. The angle range has a start value and an end value. The start value and/or the end value of the angle range can be 1°, 5°, 10°, 15°, 20°, for example. be 30°, 45°, 50°, 70°, 60° or 89°. In this case, the angle in question lies in a plane in which the fastening bore lies, which is arranged parallel to an axial direction of the inner ring and which intersects the contact surface.

In some other embodiments, the contact surface is oriented parallel to the axial direction of the inner ring. Thus, in some exemplary embodiments, a simple fastening can be made possible via a fastening borehole, which is introduced into the inner ring at an angle from the end face of the first inner ring segment. In other words, the contact surface or an edge of the contact surface, which extends over a width of the inner ring, is aligned parallel to the axial direction of the inner ring. The width of the inner ring is an extension of the inner ring in an axial direction.

Alternatively, in some further exemplary embodiments, the contact surface can also be aligned at an angle to the axial direction of the inner ring. An edge of the contact surface that extends across the width of the inner ring may be oriented obliquely to the axial direction of the inner ring.

In some further exemplary embodiments, the first inner ring segment comprises a centering structure on its contact surface. The second inner ring segment includes a counter-centering structure on its contact surface. This counter-centering structure is designed to cooperate with the centering structure so that the first inner ring segment is centered or aligned with the second inner ring segment. Thus, in some of these exemplary embodiments, correct positioning of the inner ring segments relative to one another during assembly on the shaft can be made possible.

In such an exemplary embodiment, the centering structure and the counter-centering structure can optionally be formed in order to bring about centering in a radial direction. Thus, in some exemplary embodiments, it may be possible for the partial circumferential surfaces of the inner ring segments pointing radially outward to be correctly aligned with one another and to form the sliding surface of the inner ring.

In some exemplary embodiments, which enable centering in a radial direction, at least one of the contact surfaces is inclined at least in sections with respect to a plane that extends between the ends of the ring segment and about the axial direction of the inner ring. For example, the contact surface can be inclined at least in sections to the plane. For example, the plane and the contact surface can enclose an angle of less than 90°. Alternatively, the contact surface can be inclined away from the plane, so that it encloses an angle of more than 90°. The counter-centering structure can correspondingly be designed to be inclined in the opposite direction.

For example, the centering structure can be a V-shaped groove. In this case, the counter-centering structure can be a V-shaped elevation. For example, the V-shaped groove can run parallel to the axial direction of the inner ring in the contact surface. Analogously, the V-shaped elevation can extend parallel to the axial direction of the inner ring in the contact area.

Additionally or alternatively, in some exemplary embodiments, the centering structure can be a depression of any type and shape. For example, the centering structure can be an angular indentation or a bore. The counter-centering structure can be a corresponding elevation that fits into the recess. For example, the counter-centering structure can be an angular or pin-shaped elevation.

In some further exemplary embodiments, the centering structure and the counter-centering structure are designed to bring about centering in an axial direction of the inner ring. As a result, in some exemplary embodiments it can be made possible for the inner ring segments to be assembled in such a way that the partial circumferential surfaces are positioned relative to one another in terms of their width. For example, the contact surface can be at least partially opposite to a plane between the ends of the inner segment ring extended and inclined with respect to the axial direction of the inner ring. The other contact surface, which forms the counter-centering structure, is then formed in the opposite direction in this case. For example, the contact surface may be inclined such that it encloses an angle with the plane that is less than 90° or encloses an angle that is greater than 90°.

For example, the centering structure can have a V-shaped groove, the V-shaped groove running perpendicularly or substantially perpendicularly to the axial direction of the inner ring. Accordingly, the counter-centering structure can then be designed as a V-shaped elevation. The V-shaped elevation of the counter-centering structure can also extend perpendicularly or substantially perpendicularly to the axial direction.

In some further exemplary embodiments, at least one of the end faces of at least one of the inner ring segments comprises a countersink for a head of the fastening element. In some exemplary embodiments, it can thus be made possible for the fastening element to be completely sunk into the inner ring or its end face. For example, the fastening element can be a screw with a screw head, a rivet, a pin or the like. If necessary, the fastening element can be designed as a self-tapping screw. For example, the mounting hole can have a thread.

In some further exemplary embodiments, the inner ring comprises at least one further fastening bore. The second mounting bore can extend into the inner ring from a second end face. The second face is axially opposite to the first face. As a result, in some exemplary embodiments it can be made possible for the inner ring segments to be fixed to one another from two sides. As a result, centering of the inner ring can be made possible, for example. For example, the second fastening bore can extend from the first inner ring segment into the inner ring. For example, the second mounting hole can be formed symmetrically to the first mounting hole. In addition or as an alternative, the further fastening bore can also extend from the second inner ring segment into the inner ring.

In some further exemplary embodiments, each of the inner ring segments has a fastening bore at each of its ends or in a region of its contact surfaces. As a result, it can be made possible, for example, in some exemplary embodiments that these can be connected to one another in all areas where contact surfaces abut one another. Alternatively, in other exemplary embodiments, two inner ring segments can also only be connected at one point at which the two contact surfaces abut.

In some other embodiments, the inner ring may include a plurality of inner ring segments. As a result, in some exemplary embodiments, for example, a very large inner ring can be broken down into sections that are easier to transport. For example, the inner ring can have three, four, five, or more. Have inner ring segments. The inner ring segments can each be connected to an adjacent inner ring segment at their contact surfaces.

Some exemplary embodiments relate to a radial spherical plain bearing with an inner ring according to at least one of the exemplary embodiments described. The radial spherical plain bearing also includes an outer ring. The outer ring can have a bore. This can be aligned concentrically to an axial direction of the pivot bearing. The inner ring can be accommodated in the bore. The outer ring can be moved in the axial and radial directions relative to the inner ring. For this purpose, the outer ring has a peripheral surface directed radially inwards. This is curved radially outwards. The inner ring has a circumferential surface directed radially outward. This is curved radially outwards. The inner ring and the outer ring are arranged relative to one another in such a way that their curved peripheral surfaces can slide along one another. As a result, for example, a housing that is attached to the outer ring can be mounted so that it can move relative to a shaft that is attached to the inner ring.

Some exemplary embodiments relate to a method for assembling an inner ring for a radial spherical plain bearing. In the method, a first inner ring segment is arranged on a shaft in one operation. The inner ring segment is arranged on the shaft in such a way that an end face of the inner ring segment points in an axial direction. In a further process, a second inner ring segment is arranged on the shaft. The second inner ring segment is also arranged in such a way that an end face of the inner ring segment points in the same axial direction. Both the first inner ring segment and the second inner ring segment have a contact surface. The second inner ring segment is arranged on the shaft such that the second contact surface of the second inner ring segment is mated with the first contact surface of the first inner ring segment. Both inner ring segments each have a partial peripheral surface. In an assembled state, the partial peripheral surfaces of the inner ring segments at least partially form a peripheral surface of the interior around. In a further process, the first inner ring segment is connected to the second inner ring segment from an end face of the inner ring.

In some exemplary embodiments, for example, it can be made possible that a peripheral surface of the inner ring, which forms the sliding surface in the radial spherical plain bearing, is not reduced by connecting elements introduced therein, but is instead completely available as a sliding surface. As a result, in the case of radial spherical plain bearings in some exemplary embodiments, the load capacity can be increased in comparison to the overall size. In other words, after the inner ring segments have been arranged and joined on the shaft, they can be connected to one another from the end face without injuring or damaging a radially outwardly directed sliding surface.

For example, in order to connect the inner ring segments from the end face, in some exemplary embodiments a fastening bore can be made in the inner ring. This can extend from the end face of the first inner ring segment of the first inner ring segment into the second inner ring segment. For example, a fastening element, for example a screw, can be introduced into this bore. For example, the mounting hole can have a thread. Alternatively, in some exemplary embodiments, a fastening element for connecting the two inner ring segments can be introduced into the inner ring directly from the end face.

In some further exemplary embodiments, the inner ring segments can be centered with respect to one another when they are joined together. This can make it possible, for example, for the partial peripheral surfaces to be joined together to form a peripheral surface that forms the sliding surface. The centering structure on the first inner ring segment and a corresponding counter-centering structure on the second inner ring segment can be used for this purpose.

The radial spherical plain bearing is a plain bearing. For example, a further sliding layer can be introduced between the outer ring and the inner ring. The sliding layer can, for example, be any material with lubricating properties, for example a polymer, graphite or the like. Furthermore, the plain bearing can also be a plain bearing with a steel-steel material pairing, for example.

Further advantageous configurations are described in more detail below with reference to exemplary embodiments illustrated in the drawings, to which exemplary embodiments are not limited.

• 1 zeigt eine schematische Darstellung einer Draufsicht mit einem geschnitten dargestellten Bereich eines Radial-Gelenklagers mit einem Innenring gemäß einem Ausführungsbeispiel;
• 2 zeigt eine weitere schematische Darstellung einer Draufsicht mit teilweise geschnitten dargestellten Bereichen des Radial-Gelenklagers mit dem Innenring gemäß einem Ausführungsbeispiel der 1;
• 3 zeigt eine schematische Darstellung einer Seitenansicht des Radial-Gelenklagers mit dem Innenring gemäß dem Ausführungsbeispiel der 1 und 2;
• 4 zeigt ein Flussdiagramm eines Verfahrens zur Montage eines Innenrings für ein Radial-Gelenklager gemäß einem Ausführungsbeispiel.

The figures show the following views schematically.

• 1 shows a schematic representation of a plan view with a section shown in section of a radial spherical plain bearing with an inner ring according to an embodiment;
• 2 shows a further schematic representation of a top view with partially sectioned areas of the radial spherical plain bearing with the inner ring according to an embodiment of FIG 1 ;
• 3 shows a schematic representation of a side view of the radial spherical plain bearing with the inner ring according to the embodiment of FIG 1 and 2 ;
• 4 shows a flowchart of a method for assembling an inner ring for a radial spherical plain bearing according to an embodiment.

In the following description of the accompanying illustrations, the same reference symbols designate the same or comparable components. Furthermore, summarizing reference signs are used for components and objects that occur multiple times in an exemplary embodiment or in a representation, but are described together with regard to one or more features. Components or objects that are described with the same or collective reference symbols can be identical with regard to individual, several or all features, for example their dimensions, but may also be different, unless something else is explicitly or implicitly stated in the description.

1 shows a schematic representation of a plan view with a sectioned area of a radial spherical bearing with an inner ring according to an embodiment.

As in 1 shown, an inner ring 1 for a radial spherical plain bearing 2 comprises at least a first inner ring segment 3 and at least a second inner ring segment 4. The inner ring segments 3 and 4 each have a contact surface 5 and 6. The inner ring segments 3 and 4 can be joined together at the contact surfaces 5 and 6. Furthermore, the inner ring segments 3 and 4 each have a partial peripheral surface 9 and 10 . The partial peripheral surfaces 9 and 10 at least partially form a peripheral surface 13 of the inner ring 1 in an assembled state. Furthermore, the inner ring segments 3 and 4 each have at least one white in an axial direction send face 11 on. The peripheral surface 13 is curved radially outwards. Furthermore, the inner ring 1 comprises at least one fastening bore 14. The fastening bore 14 is designed to accommodate a fastening element 15. In this way, the at least two inner ring segments 3 and 4 can be connected to one another. In an assembled state, the contact surfaces 5 and 6 touch. The fastening bore 14 extends from the end face 11 of the first inner ring segment 3 into the inner ring 1.

In the embodiment of 1 the contact surfaces 5 and 6 are oriented parallel to an axial direction M of the inner ring 1 and substantially perpendicular to a circumferential direction of the inner ring 1 . The fastening bore 14 extends from the end face 11 of the inner ring segment 3 to the contact surface 5 of the inner ring segment 3. From there, the fastening bore 14 extends further from the contact surface 6 of the inner ring segment 4 into the inner ring segment 4. The fastening bore 14 or the parts of the fastening bore in the inner ring segment 3 and in the inner ring segment 4 are aligned with one another.

Furthermore, the inner ring 1 also has a fastening bore, not shown, into which a further fastening element 16 is introduced. The further fastening bore, into which the fastening element 16 is introduced, is designed essentially analogously and symmetrically to the fastening bore 15 . The further fastening hole is introduced from an end face 17 of the inner ring 1 which is opposite the end face 11 of the inner ring segment 3 in the axial direction M.

The spherical plain bearing 2 also includes an outer ring 18 . The outer ring 18 is composed of a first outer ring segment 19 and a second outer ring segment 20 . The outer ring segments 19 and 20 each have a partial peripheral surface that forms a peripheral surface of the outer ring 18 . The outer ring 18 has a peripheral surface directed radially inwards, which forms a counter-surface to the peripheral surface 13 of the inner ring 1 .

The outer ring segments 19 and 20 are joined together at a contact surface 21 and 22 . In order to connect the outer ring segments 19 and 20 to one another, fastening elements 24 and 25 are introduced into an outer peripheral surface 23 of the outer ring 19 which is directed radially outward. With the fasteners 24 and 25, the outer ring segments 19 and 20 are fixed to each other. This can be done without influencing the load, because the outer peripheral surface 23 of the outer ring 18 is only used to connect the outer ring 18 to a housing and the fastening elements 24 and 25 or openings or grooves for inserting the fastening elements 26 and 27 do not affect the sliding surface.

Furthermore, the outer ring 18 has a lubricating groove 28 on its radially outwardly directed circumferential surface. The lubricating groove 28 extends in a circumferential direction U of the radial spherical plain bearing 2. A plurality of bores 29 are arranged in the lubricating groove. Through this, for example, a lubricating medium can be introduced into an area between the outer ring 18 and the inner ring 1 of the pivot bearing 2 . In addition or as an alternative, a lubricating medium can also emerge from the pivot bearing 2 from the bore 29 .

In some further exemplary embodiments, which are not shown, the outer ring can be designed in one piece. Alternatively, the outer ring segments can be connected, for example, analogously to the inner ring. Additionally or alternatively, in some exemplary embodiments, the outer ring can be designed without a lubrication groove and/or without bores.

2 shows a further schematic representation of a top view with partially sectioned areas of the radial spherical plain bearing with the inner ring according to an embodiment 1 .

As in 2 shown, a groove 31 is also formed on a radially inwardly facing peripheral surface 30 of the inner ring. The groove 31 is connected to the peripheral surface 13 of the inner ring 1 via a bore 32 . The bore 32 extends in the radial direction from the circumferential surface 13 into the inner ring 1. The bore 32 is arranged radially below a bore 29 in the outer ring 18. Inner 1 and outer ring 19 can be twisted to each other. For this reason, some bearings that can be relubricated can also have a circumferential groove on the sliding surface of the inner and/or outer ring. That is, when the inner ring is twisted relative to the outer ring, the bore 32 is no longer aligned with the bore 29 of the outer ring 18, but the groove can still be lubricated.

In some other exemplary embodiments that are not shown, the inner ring is designed without the groove and/or without the bore.

3 shows a schematic representation of a side view of the radial spherical plain bearing with the inner ring according to the exemplary embodiment according to FIGS 1 and 2 .

As in 3 8, the inner ring segments 3 and 4 also have a contact surface 7 and 8, respectively, at their ends which are opposite the contact surfaces 5 and 6. At these they are also joined together. Analogously to the situation at the contact surfaces 5 and 6, the inner ring segments 3 and 4 are also connected in the area of the contact surfaces 7 and 8 via a fastening element 33. The fastening element 33 is introduced into a fastening bore, which is aligned and formed essentially analogously to the fastening bore 14 .

In order to simplify centering of the inner ring segments 3 and 4 relative to one another, the contact surface 5 has a V-shaped groove as the centering structure 34 . The groove is aligned parallel to the axial direction M of the inner ring 2 . The contact surface 6 has a V-shaped elevation as a counter-centering structure 35 . The elevation is also aligned parallel to the axial direction M of the inner ring 2 . In the assembled state, the V-shaped elevation engages in the V-shaped groove. This causes the inner ring segments 3 and 4 to be centered in the radial direction R with respect to one another. Similarly, the contact surfaces 7 and 8 also have a V-shaped elevation as a centering structure and counter-centering structure.

In some other exemplary embodiments that are not shown, the contact surfaces can also be designed without a centering structure. Alternatively, the contact surfaces can have a centering structure designed in a different way. In some exemplary embodiments, a centering structure can be formed in order to enable the inner ring segments to be centered in a radial and/or axial direction.

The outer ring 18 or its outer ring segments 19 and 20 also have a V-shaped depression 36 on their contact surfaces 21 and 22 and a V-shaped elevation 37 on the opposite contact surface. The V-shaped depression is introduced into the outer ring segment 19 which lies above the inner ring segment 3 which has a V-shaped elevation 35 .

In some other exemplary embodiments that are not shown, the elevation can also be in the form of a depression. The eroding cut in the inner and outer ring can be made in the same direction or in opposite directions.

The inner ring 11 also has a groove 41 on its circumferential surface 30 pointing radially inwards. The groove 41 runs parallel to an axial direction M and has a substantially rectangular cross section. For example, the groove 41 is used to axially and/or radially secure the inner ring on a shaft (not shown).

Similarly, the outer ring 18 has a groove 42 on a circumferential surface 23 pointing radially outward. The groove 42 extends parallel to an axial direction M across the width of the outer ring 18. The groove 42 also has a substantially rectangular shape and serves, for example, to secure the outer ring 18 in the circumferential direction in its housing.

In further exemplary embodiments that are not shown, the inner and/or outer ring can have other elements for securing in the circumferential direction and/or can be designed without a groove.

4 shows a schematic representation of a flow chart of a method for assembling an inner ring for a radial spherical plain bearing according to an embodiment.

A method 50 for assembling an inner ring for a radial spherical plain bearing includes a plurality of operations. In a process 51, a first inner ring segment with an end face pointing in an axial direction and with a first contact surface is arranged on a shaft. In a further process 52, a second inner ring segment with a contact surface and an end face pointing in the axial direction is arranged on a shaft. They are arranged in such a way that the contact surfaces of the two inner ring segments touch. The inner ring segments each have a partial circumferential surface which, in an assembled state, at least partially forms the circumferential surface of the inner ring. In a final process, the first inner ring segment and the second inner ring segment are connected to one another from the end face of the inner ring.

The inner ring segments are thus arranged on the shaft in such a way that they at least partially enclose the shaft in the radial direction. As a result, a radial spherical plain bearing with an axial separation can be provided, for example. The radial spherical plain bearing can optionally have an axially divided inner and outer ring, the individual segments of which are screwed together. In other words, the radial spherical plain bearing has an inner and an outer ring, which are axially divided and braced or connected. As a result, a simplified bearing change may be possible. Furthermore, in some exemplary embodiments, a bearing exchange can also be possible with a continuous shaft.

In some embodiments, because the sliding surface of the inner ring is not fixed by Befes ing elements or fastening bores is reduced, if necessary it can be made possible that no larger bearing installation space is required compared to a comparable standard bearing in which the inner ring is not divided. The individual components, that is to say the inner ring segments and/or also the outer ring segments, can be centered with respect to one another in some exemplary embodiments by means of the centering and counter-centering structures described. In some exemplary embodiments, for example, the mounting of the bearing in an installation position can be made possible without rotating the bearing components in relation to one another. For example, in some exemplary embodiments it can be avoided that, as in conventional solutions, the screw connection of a divided inner ring takes place using an additional flange or ring component.

In other words, the oblique arrangement of the fastening elements, which can be fitted screws, for example, can be used to connect the inner ring segments or inner ring halves with the countersinking from the side surfaces of the inner rings or the rings. A V-shaped eroding cut can, for example, support the centering of the ring halves and the distribution of force to one another. Furthermore, the screwing of the inner ring halves from the side surfaces can, for example, enable better utilization of the inner ring width. As a result, complete or almost complete utilization of the spherical surface can be made possible in some exemplary embodiments. As a result, a larger sliding surface and/or a bearing with a higher load can be provided in some exemplary embodiments.

Inner rings for radial spherical plain bearings according to the exemplary embodiments described can be used, for example, in any application for plain bearings. Examples of such applications can be vehicles, work machines, conveying elements or, for example, a distributor trough for a multi-strand billet system.

The exemplary embodiments disclosed in the above description, the subsequent claims and the attached figures and their individual features can be important and implemented both individually and in any combination for the realization of an exemplary embodiment in their various configurations.

Reference List

1

inner ring

2

Radial spherical plain bearings

3

inner ring segment

4

inner ring segment

5

contact surface

6

contact surface

7

contact surface

8th

contact surface

9

perimeter face

10

perimeter face

11

face

12

face

13

peripheral surface

14

mounting hole

15

fastener

16

fastener

17

face

18

outer ring

19

outer ring segment

20

outer ring segment

21

contact surface

22

contact surface

23

outer peripheral surface

24

fastener

25

fastener

26

mounting hole

27

mounting hole

28

oil groove

29

drilling

30

peripheral surface

31

groove

32

drilling

33

fastener

34

centering structure

35

anti-centering structure

36

V-shaped elevation

37

V-shaped indentation

38

End

39

End

41

groove

42

groove

50

procedure

51

arrange

52

arrange

35

Connect

M

axial direction

u

circumferential direction

R

radial direction

E

level

Claims (10)

Inner ring (1) for a radial spherical plain bearing (2) with the following features: at least one first inner ring segment (3) and at least one second inner ring segment (4); wherein the inner ring segments (3, 4) each have a contact surface (5, 6, 7, 8) on which they can be joined and wherein the inner ring segments (3, 4) each have a partial peripheral surface (9, 12) which is joined together in a state at least partially form a peripheral surface (13) of the inner ring (1), the inner ring segments (3, 4) each having at least one end face (11, 12) directed in an axial direction (M); and wherein the peripheral surface (13) is curved radially outward; and at least one fastening bore (14) which is designed to receive a fastening element (15) in order to connect the first inner ring segment (3) and the second inner ring segment (4) to one another so that they are joined together at the contact surfaces (5, 6), the fastening bore (14) extending from the end face (1) of the first inner ring segment (3) into the inner ring (1). inner ring after claim 1 , wherein the at least one mounting hole (14) is aligned obliquely to the contact surface (5). Inner ring according to one of the preceding claims, wherein the contact surface (5, 6, 7, 8) is oriented parallel to the axial direction (M) of the inner ring (1). Inner ring according to one of the preceding claims, wherein the first inner ring segment (3) has a centering structure (34) on its contact surface (5) and the second inner ring segment (4) has a counter-centering structure (35 ) includes. inner ring after claim 4 , wherein the centering structure (34) and the counter-centering structure (35) are designed to cause centering in the radial direction. inner ring after claim 4 , wherein the centering structure (34) and the counter-centering structure (35) are designed to bring about centering in the axial direction (M). Inner ring according to one of the preceding claims, wherein at least one end face (11) of at least one of the inner ring segments (3, 4) comprises a countersink for a head of the fastening element (15). Inner ring according to one of the preceding claims, wherein the inner ring (1) comprises a second fastening bore, the second fastening bore extending from a second end face (17) opposite the first end face (11) in the axial direction (M) into the inner ring (1 ) extends. Radial spherical plain bearing (2) with the following features: an inner ring (1) according to one of Claims 1 until 8th , an outer ring (18); the outer ring (18) being movable relative to the inner ring (1) in the radial and in the axial direction (M). Method (50) for assembling an inner ring (1) for a radial spherical plain bearing (2), the method (50) comprising: arranging (51) a first inner ring segment (3) with an end face (11) pointing in an axial direction (M) and with a first contact face (5) on a shaft; Arranging (52) a second inner ring segment (4), with an end face (12) pointing in the same axial direction (M) and with a second contact surface (6) on the shaft, so that the inner ring segments (3, 4) are joined together Touch state on the contact surfaces (5, 6); wherein the inner ring segments (3, 4) each have a partial peripheral surface (9, 10) and which, in the assembled state, at least partially form a peripheral surface (13) of the inner ring (1); Connecting (53) the first inner ring segment (3) and the second inner ring segment (4) from an end face (11) of the inner ring (1).

Images