DE102019208143B4 - Bearing shell for forming a ball joint and a ball joint with such a bearing shell - Google Patents

Abstract

The invention relates to a bearing shell (1) for forming a ball joint (32) and having an interior (2) for movably receiving a joint ball (27), the interior (2) having an inner surface (3) in the shape of a spherical segment, with a bearing shell opening (5) ), and with a support surface (8) facing away from the bearing shell opening (5) for placing on a housing base (28). In order to improve the stability, to reduce the risk of undesired deformation due to material flow and / or to reduce susceptibility to wear, the bearing shell (1) is characterized in that the support surface (8) is designed like a circular disk and the support surface (8) is centered and / or or is arranged coaxially to a central longitudinal axis (12) of the bearing shell (1).

Description

The invention relates to a bearing shell for forming a ball joint and with an interior space for movably receiving a joint ball, the interior space having a spherical segment-shaped inner surface, with a bearing shell opening, and with a support surface facing away from the bearing shell opening for placement on a housing base, the support surface being designed like a circular disk and the support surface is arranged centrally and / or coaxially to a central longitudinal axis of the bearing shell. The invention also relates to a ball joint with such a bearing shell, the bearing shell being arranged in a joint housing.

Such a bearing shell or such a ball joint is from EP 0 082 638 A1 known.

From the DE 100 05 979 B4 it is known that several ring structures are supported on the outside of the bearing shell on a conical housing base, a free space being formed between a central region of the bearing shell and the housing base or a joint housing.

The disadvantage here is that such bearing shells can show undesirable signs of wear during use. There can be the risk of undesirably strong deformation and / or the material of the bearing shell can at least partially begin to flow at high pressures, stresses and / or temperatures. As a result, there is the risk that undesired play will occur in the ball joint or that the required tolerances will not be maintained over the long term.

Furthermore, from the DE 100 05 979 B4 known that the bearing shell in an unassembled state has a cylinder-like section which forms a bearing shell opening. During the assembly or manufacture of the ball and socket joint, the cylindrical section is deformed so that a section in the shape of a spherical section results from the cylindrical section.

In this case, there is the risk that the material of the bearing shell will tear or break in the deformed section. This can impair the functionality of the bearing shell and / or undesirably increased wear can occur.

It is the object of the invention to further develop a bearing shell and / or a ball joint of the type mentioned at the beginning in such a way that stability is improved, the risk of undesired deformation due to material flow is reduced and / or susceptibility to wear is reduced. In particular, an alternative embodiment is to be provided.

The object on which the invention is based is achieved with a bearing shell according to claim 1 and by means of a ball joint according to claim 13. Preferred developments of the invention can be found in the subclaims and in the following description.

The bearing shell is designed for the formation or manufacture of a ball joint. Here, the bearing shell has an interior space for movably receiving a joint ball. The interior has a spherical segment-shaped inner surface. In particular, the spherical segment-shaped inner surface is designed to correspond to the outer circumference and / or the radius of the joint ball. The joint ball can be received or stored in the interior of the bearing shell in a form-fitting and articulated manner. The bearing shell has a bearing shell opening, the bearing shell opening being delimited in particular by means of a ring-like edge. In particular, a diameter of the bearing shell opening is determined or defined by means of an inner diameter of the ring-like edge. The bearing shell has a support surface facing away from the bearing shell opening for placement on a housing base. In particular, the housing base is a component part of a joint housing and / or housing cover that is separate from or designed separately from the bearing shell. The support surface is designed like a circular disk. Furthermore, the support surface is arranged centrally and / or coaxially to a central longitudinal axis of the bearing shell.

The advantage here is that due to the circular disk-like design of the support surface, flat and / or full-surface support of the bearing shell on the housing base is made possible. In this way, the risk of undesired deformation and / or increased wear of the bearing shell when used in a ball joint can be reduced. In particular, the risk of the material of the bearing shell flowing can be reduced. The circular disk-like support surface preferably extends outward from the central longitudinal axis in the radial direction to the central longitudinal axis. In particular, a center point of the circular disk-like support surface lies on the central longitudinal axis. Here, the support surface is designed in such a way that it can be supported over the entire surface on the housing base.

The bearing shell and / or the ball joint preferably has a joint axis and / or the central longitudinal axis about which the ball joint, the joint ball and / or an inner joint part can be moved. Preferably the extends Joint axis and / or the central longitudinal axis in the axial direction of the bearing shell, the ball joint and / or the inner joint part. The joint axis and the central longitudinal axis can coincide. The hinge axis is preferably the central longitudinal axis. In particular, the bearing shell and / or the ball joint is designed to be rotationally symmetrical or essentially rotationally symmetrical with respect to the joint axis and / or the central longitudinal axis. The joint axis and / or the central longitudinal axis can run through a center point of the joint ball.

In the context of the present application, the term “radial” can denote any direction or any direction that runs at right angles to the axial direction of the bearing shell, the ball joint, the joint axis and / or the central longitudinal axis.

The term “axial” can denote any direction or any direction that runs parallel to the axial direction of the bearing shell, the ball joint and / or the central longitudinal axis.

The joint ball and / or the inner joint part can be rotatably and / or tiltably mounted in the bearing shell. In particular, a moveable receiving and / or an articulated mounting of the joint ball in the bearing shell is to be understood as meaning pivoting mobility, tilting mobility and / or rotational mobility. A movable receptacle and / or an articulated connection of two components preferably denotes a connection of the two components by means of a joint in such a way that the two components can be rotated relative to one another about at least one axis of rotation. Articulated connections about exactly one axis of rotation, about two axes of rotation or about three axes of rotation are possible. In particular, an articulated connection does not allow any translational movement of the two components relative to one another.

According to a further development, the support surface has a diameter which corresponds to at least 2/3 or at least 3/4 of a maximum inner diameter of the interior and / or a maximum outer diameter of the joint ball. In particular, the diameter of the support surface extends at right angles to the central longitudinal axis of the bearing shell. A center point of the support surface is preferably located on the central longitudinal axis. The support surface thus covers a large part of the diameter of the interior space and / or the joint ball. This enables the bearing shell to be supported over a large area on the housing base. In particular, the support surface has a diameter which corresponds to at least 2/3 or at least 3/4 of a maximum outside diameter of the bearing shell.

According to a further embodiment, a section of the bearing shell between the support surface and the inner surface of the interior, in particular in the axial direction and / or parallel to the central longitudinal axis of the bearing shell, is solid and / or made of a solid material. Thus, in the section between the support surface and the inner surface of the interior, there are no free spaces into which the material of the bearing shell could flow if there is sufficient load. This considerably reduces or completely prevents the risk of undesired deformation of the bearing shell. The bearing shell is preferably formed from a plastic.

Due to the spherical segment-shaped inner surface of the interior and the circular disk-like design of the support surface, there is a cross-section reduction and / or a wedge-like decrease in material thickness in the section between the support surface and the inner surface of the interior, in particular in the direction of the central longitudinal axis. This design of the section between the support surface and the inner surface helps prevent the material of the bearing shell from flowing. In particular, if the joint ball arranged in the interior is designed without a pole face, this can prevent undesired flow of the material.

According to the invention, the support surface rises conically starting from a circular edge of the support surface and in the direction of a central center of the support surface at an angle of less than 10 degrees or less than 5 degrees or less than 3 degrees, in particular with an angle of 1 degree. In the case of an essentially flat housing base, in combination with such a support surface and when the bearing shell is installed in a joint housing, in which sufficient contact pressure is exerted on the support surface on the housing base, compression and / or preloading of the material of the bearing shell in the Section between the support surface and the inner surface of the interior, whereby an undesired flow of the material can be prevented even better. In particular, the support surface is pressed against the housing base over its entire surface in the assembled state.

The support surface can have a central center. In particular, the central center lies on the central longitudinal axis and / or is designed to be rotationally symmetrical to the central longitudinal axis. A center point of the circular disk-like support surface can also form a center point of the central center. The central center of the support surface can be designed as an injection point. The bearing shell is preferably made in an injection molding process by means of a single injection point produced. The central center can be designed as an elevation in the support surface. The central center and / or the elevation can be designed in the manner of a ring. The housing base preferably has a recess formed to correspond to the central center for receiving the central center, preferably in a form-fitting manner.

According to one development, a ring-like collar surface for contact with the housing bottom is formed coaxially to the central longitudinal axis and the support surface. The collar surface preferably extends radially and / or at right angles to the central longitudinal axis. The collar surface can lie essentially in the same plane as the support surface. In particular, the support surface is related to the collar surface and in the axial direction of the central longitudinal axis beyond the collar surface. In other words, in the longitudinal direction of the central longitudinal axis, the support surface can have a greater distance from the spherical segment-shaped inner surface of the bearing shell than the collar surface. The support surface preferably protrudes less than 0.1 mm from the collar surface. As a result, when the bearing shell is installed in a joint housing, a greater preload and / or a greater contact pressure can be set between the support surface and the housing base than between the collar surface and the housing base. In this way, a material prestress can be generated in the section between the support surface and the inner surface of the interior, which can reduce or prevent an undesired flow of the material.

According to a development, an annular recess is formed between the collar surface and the support surface. The ring-like recess can have a substantially V-shaped cross section. In particular, the ring-like recess is designed as a reservoir for receiving a lubricant. The lubricant is preferably used to lubricate the joint ball in the interior of the bearing shell. Preferably, the recess serves as a reservoir for holding excess lubricant.

According to a development, a plurality of stiffening ribs are arranged within the ring-like recess. Deformation of the bearing shell due to the ring-like recess can be counteracted by means of the stiffening ribs. In particular, the ring-like recess has a first inside assigned to the support surface and a further inside assigned to the collar surface, the stiffening ribs, preferably seen in the circumferential direction of the bearing shell, being arranged alternately on the first inside and the further inside. As a result, an optimal stiffening of the ring-like depression can be achieved.

According to a further development, at least one channel extends from the inner surface of the interior into the ring-like depression. The channel can thus connect the interior space with the ring-like recess. In particular, the channel is aligned parallel to the central longitudinal axis. The channel is preferably tubular. The duct can be used to ventilate the interior when the joint ball is inserted into the interior. In particular, excess lubricant from the interior space when the joint ball is inserted into the interior space can be discharged from the interior space and diverted into the annular recess. Preferably, several channels are evenly distributed in the circumferential direction of the bearing shell. For example, the bearing shell can have three channels.

According to a further embodiment, a first section of an outer circumference of the bearing shell is designed as a spherical section-shaped ring section. A second section of the outer circumference of the bearing shell can be designed as a cylinder section. Another section of the outer circumference can be designed as a ring-like edge section protruding radially to the central longitudinal axis outward beyond the cylinder section. In particular, the bearing shell is formed from the three sections mentioned above. Here, the cylinder section can connect the spherical section-like ring section to the ring-like edge section.

According to a development, the bearing shell opening is formed by a spherical segment-shaped ring segment. Here, the spherical segment-shaped ring segment for forming the bearing shell opening is bent radially inward relative to the central longitudinal axis. An inner radius and / or an outer radius of the spherical segment-shaped ring section is greater than an outer radius of the joint ball and / or greater than an inner radius of a joint housing, in particular a section of the joint housing, for receiving the spherical segment-shaped ring section when the bearing shell is not assembled. As a result, the spherical segment-shaped ring segment is preformed for receiving, in particular for holding the joint ball, but in the unmounted state does not yet have the shape as in the mounted state. In particular, the inner diameter of the bearing shell opening in the unassembled state of the bearing shell is greater than in the assembled state, in which the bearing shell receives the joint ball and is arranged in a joint housing. The spherical segment-shaped ring section, which is preformed in the unmounted state of the bearing shell, enables the joint ball to be inserted into the interior of the bearing shell. For this purpose, the spherical segment-shaped ring segment can be used when the joint ball is inserted be briefly elastically deformed radially outward or away from the central longitudinal axis. At the same time, by means of the preformed spherical segment-shaped ring segment, when the joint ball is inserted into the interior and / or when the bearing shell is mounted in a joint housing, overstressing of the bearing shell material, particularly in the area of the bearing shell opening, can be avoided.

The inner radius and / or outer radius of the spherical segment-shaped ring segment is preferably designed such that when the bearing shell is installed in a joint housing, the material of the bearing shell is deformed below a limit value to avoid a material crack. In particular, there is a deformation of the spherical section-shaped ring section during assembly of the bearing shell in the joint housing in the form of an expansion and / or stretching of the material of the bearing shell of less than 10% or less than 6%. In this way, undesired damage to or weakening of the material of the bearing shell can be avoided.

A ball joint with a bearing shell according to the invention is particularly advantageous, the bearing shell being arranged in a joint housing and the support surface resting on the housing base over the entire surface. In particular, the ball joint and / or the bearing shell is designed for use in a chassis component in a chassis of a vehicle, preferably a motor vehicle. The ball joint and / or the bearing shell can thus be arranged in a chassis component. Ball joints can be used in a variety of ways in vehicle construction. In the chassis in particular, ball joints serve to articulate chassis components such as link components, wheel carriers, tie rods or the like with one another or with the vehicle body or an axle carrier attached to it. Ball joints preferably have a joint housing that is open at least on one side and has a housing recess for receiving an inner joint part. The inner joint part can be implemented as a ball sleeve or as a ball stud. When designed as a ball pin, a pin section of the inner joint part can extend out of the housing opening and the bearing shell opening.

The housing base is preferably designed as part of a joint housing. In particular, the housing base is implemented as part of a housing cover. The housing cover can in turn be part of a joint housing and / or close an opening in the joint housing. In particular, a ring-like collar surface that runs coaxially to the central longitudinal axis and the support surface rests on the housing base. The collar surface can be formed at least partially as part of a further section of the outer circumference of the bearing shell, the further section protruding radially to the central longitudinal axis outward beyond a second section of the outer circumference of the bearing shell in the form of a cylinder section, the further section being implemented as a ring-like edge section . This ring-like edge section can engage positively in a groove and / or step of the joint housing. In this way, the bearing shell can be secured on the joint housing at least in the axial direction to the central longitudinal axis.

According to one development, a spherical segment-shaped ring section of the bearing shell, in particular as a first section of the outer circumference of the bearing shells, rests in a form-fitting manner on an inner wall of the joint housing. Here, due to the mounting of the bearing shell in the joint housing, deformation of the material of the bearing shell, in particular the material of the spherical segment-shaped ring section of the bearing shell, can result below a limit value to avoid a material crack. A deformation, in particular of the spherical segment-shaped ring section of the bearing shell, preferably results in the form of an expansion and / or stretching of the material of the bearing shell of less than 10% or less than 6%.

According to a further embodiment, an end face of the edge of the bearing shell opening rests against a contact surface of the joint housing that extends inwardly in a radial and / or at right angles to the central longitudinal axis of the bearing shell. In this way, the bearing shell can be secured in the joint housing at least in the axial direction of the central longitudinal axis. In particular, the contact surface of the joint housing realizes a flow stop to prevent the material of the bearing shell from flowing. The alignment of the contact surface radially and / or at right angles to the central longitudinal axis of the bearing shell can enable or simplify circular production of the joint housing and / or the contact surface.

The joint ball is preferably designed without a pole face, in particular as a solid ball. In particular, the joint ball rests over its entire surface on the inner surface of the interior that faces away from the bearing shell opening. Due to the use of a joint ball without a pole face, in particular in cooperation with the support surface of the bearing shell, undesired flow of the material of the bearing shell can be avoided. The joint ball is preferably part of an inner joint part. The inner joint part can, for example, have a pin section which, starting from the joint ball, extends out of the bearing shell opening and out of a housing opening.

The ball joint is preferably developed in accordance with all of the configurations explained in connection with the inventive bearing shell described here. Furthermore, the bearing shell described here can be developed in accordance with all of the configurations explained in connection with the ball joint.

• 1 eine erste perspektivische Ansicht einer erfindungsgemäßen Lagerschale,
• 2 eine weitere perspektivische Ansicht der erfindungsgemäßen Lagerschale gemäß 1,
• 3 eine geschnittene Seitenansicht der erfindungsgemäßen Lagerschale gemäß 1 und 2,
• 4 eine Draufsicht auf die erfindungsgemäße Lagerschale gemäß 1 bis 3,
• 5 eine geschnittene Seitenansicht eines Gelenkgehäuses mit einer teilweise überlagert dargestellten erfindungsgemäßen Lagerschale gemäß 1 bis 4, wobei die Lagerschale in einem nicht montierten Zustand dargestellt ist, und
• 6 eine geschnittene Seitenansicht eines erfindungsgemäßen Kugelgelenks mit einer montierten erfindungsgemäßen Lagerschale gemäß 1 bis 4.

The invention is explained in more detail below with reference to the figures. Here, the same reference symbols relate to the same, similar or functionally identical components or elements. Show it:

• 1 a first perspective view of a bearing shell according to the invention,
• 2 a further perspective view of the bearing shell according to the invention according to 1 ,
• 3 a sectional side view of the bearing shell according to the invention according to 1 and 2 ,
• 4th a plan view of the bearing shell according to the invention according to 1 to 3 ,
• 5 a sectional side view of a joint housing with a partially superimposed bearing shell according to the invention according to 1 to 4th , wherein the bearing shell is shown in a non-assembled state, and
• 6th a sectional side view of a ball joint according to the invention with a mounted bearing shell according to the invention according to 1 to 4th .

1 shows a first perspective view of a bearing shell according to the invention 1 . The bearing shell 1 is formed from a plastic. Furthermore is the bearing shell 1 shown in an unassembled state. The bearing shell 1 has an interior 2 for movably receiving or storing a joint ball, not shown here. The interior 2 has a spherical segment-shaped inner surface 3 on. The bearing shell 1 has a ring-like edge 4th . The ring-like edge 4th determines or defines a bearing shell opening 5 . Through the bearing shell opening 5 can the joint ball not shown here in the interior 2 to be ordered. In addition, the joint ball and / or an inner joint part having the joint ball can extend out of the bearing shell opening 5 extend out.

The bearing shell 1 assigns multiple channels 6th on. In this embodiment, the bearing shell 1 three channels 6th on. The channels 6th are designed as through openings or tubular. The channels 6th extend from the interior 2 or the inner surface 3 into one of the bearing shell opening 5 averted direction. This is where the channels are used 6th for venting the interior 2 when inserting the joint ball, not shown here. In addition, the channels 6th excess lubricant when inserting the joint ball from the interior 2 be discharged.

In this embodiment, the inner surface 3 a flat ring groove 7th on. The annular groove is used here 7th for storing and / or receiving lubricants. The channels 6th lie in the area of the inner surface 3 on the ring groove 7th . Here are the channels 6th evenly in the circumferential direction of the annular groove 7th arranged spaced from one another.

2 shows another perspective view of the bearing shell according to the invention 1 according to 1 . On one of the bearing shell opening 5 according to 1 facing away from the bearing shell 1 a support surface 8th on. The support surface 8th is designed like a circular disk. Furthermore, the support surface 8th a central center 9 on. In this embodiment is the central center 9 as an elevation in the support surface 8th educated. Here is the central center 9 for example ring-shaped. The central center 9 is designed as an injection point, the bearing shell 1 is manufactured by means of an injection molding process. In this embodiment, the bearing shell 1 with the central center 9 a single injection point.

The support surface 8th all around has the bearing shell 1 a ring-like collar surface 10 on. Here is between the collar surface 10 and the support surface 8th a ring-like depression 11 educated. In the ring-like recess 11 , especially in the bottom of the ring-like recess 11 , the channels end 6th .

3 shows a sectional side view of the bearing shell according to the invention 1 according to 1 and 2 . The bearing shell 1 has a central longitudinal axis 12 on. The bearing shell 1 is essentially rotationally symmetrical to the central longitudinal axis 12 educated. The support surface 8th is central or coaxial with the central longitudinal axis 12 arranged. Thus there is a center point of the support surface 8th or the central center 9 on the central longitudinal axis 12 . Starting from the central longitudinal axis 12 the circular disk-like support surface extends 8th essentially radial to the central longitudinal axis 12 .

Here, the circular disk-like support surface 8th a diameter which in this embodiment is at least 3/4 of a maximum interior diameter of the interior 2 corresponds. The diameter of the support surface extends here 8th and the interior diameter of the interior 2 perpendicular to the central longitudinal axis 12 .

A section of the bearing shell 1 between the support surface 8th and the inner surface 3 of the interior 2 is solid or made of a solid material. Thus at least the section is between the support surface 8th and the inner surface 3 formed without any space. Due to the spherical segment-shaped design of the inner surface 3 takes the cross section of the section between the support surface 8th and the inner surface 3 starting from the central longitudinal axis 12 wedge-like radially outwards. In other words, the result is based on the outer circumference of the bearing shell 1 towards the central center 9 going a cross-section reduction in the section between the support surface 8th and the inner surface 3 . This formation of the section between the support surface 8th and the inner surface 3 reduces the risk of undesired flow of the bearing shell material 1 .

In this embodiment, the support surface increases 8th starting from an outer circumference of the support surface 8th or from a circle edge 13 the support surface 8th and towards the central center 9 conical at an angle of 1 degree.

The fret area 10 is coaxial to the central longitudinal axis 12 arranged. In this embodiment, the support surface is 8th in relation to the collar area 10 and in the axial direction of the central longitudinal axis 12 over the collar surface 10 out. The support surface protrudes here 8th with less than 0.1 mm, namely 0.06 mm, over the collar surface 10 out.

The ring-like depression 11 In this exemplary embodiment, it has a substantially V-shaped cross section.
A first section of an outer circumference of the bearing shell 1 is as a spherical segment-shaped ring segment 14th educated. A second section of the outer circumference of the bearing shell 1 is as a cylinder section 15th realized. Another or third section of the outer circumference of the bearing shell 1 is as a radial to the central longitudinal axis 12 outwards over the cylinder section 15th protruding ring-like edge section 16 educated. Thus, in this embodiment, the outer circumference of the bearing shell 1 by means of the spherical segment-shaped ring segment 14th , the cylinder section 15th and the ring-like rim portion 16 educated. Here the cylinder section connects 15th the spherical segment-like ring portion 14th with the ring-like edge portion 16 . In other words, it is the cylinder section 15th between the spherical segment-shaped ring section 14th and the ring-like rim portion 16 arranged. The cylinder section 15th and the spherical segment-shaped ring portion 14th merge continuously or without offset.

The ring-like edge 4th is a free end of the spherical segment-shaped ring section 14th assigned. The bearing shell opening 5 is from the spherical segment-shaped ring portion 14th formed or determined by this. For forming the bearing shell opening 5 is the spherical segment-shaped ring segment 14th radial to the central longitudinal axis 12 bent inwards. In the unassembled state of the bearing shell shown here 1 is an inner radius of the spherical segment-shaped ring portion 14th larger than an outer radius of the joint ball that is in the interior 2 should be arranged. Furthermore, in this embodiment there is also an outer radius of the spherical segment-shaped ring segment 14th in the unmounted state of the bearing shell 1 larger than an inner radius of a section, not shown here in detail joint housing for receiving the spherical segment-shaped ring section 14th .

The interior 2 has a center point 17th on. The middle-point 17th lies on an equatorial plane 18th , being the equatorial plane 18th perpendicular to the central longitudinal axis 12 extends. Furthermore, the center is located 17th on the central longitudinal axis 12 . In the unassembled state of the bearing shell shown here 1 arises on one of the bearing shell opening 5 facing away from the equatorial plane 18th a constant radius between the center point 17th and the inner surface 3 . On one of the bearing shell opening 5 facing side of the equatorial plane 18th is the radius between the center point 17th and the inner surface 3 however larger. In this embodiment, the radius takes between the center point 17th and the inner surface 3 starting from the equatorial plane 18th towards the ring-like edge 4th continuously to.

4th shows a plan view of the bearing shell according to the invention 1 according to 1 to 3 . The ring-like depression 11 has one of the support surfaces 8th assigned first inside 19th on. Furthermore, the ring-like recess 11 one of the fret surface 10 assigned further or second inside 20th on. Thus the two insides 19th , 20th arranged opposite one another.

Furthermore, are inside the ring-like recess 11 several stiffening ribs 21st , 22nd arranged. Not all stiffening ribs are in favor of a better overview 21st , 22nd provided with a reference number. In this embodiment, the stiffening ribs are 21st on the first inside 19th arranged. The stiffening ribs 22nd are here on the further inside 20th arranged. Furthermore are the stiffening ribs 21st , 22nd in the circumferential direction of the bearing shell 1 seen alternately on the first inside 19th and the other inside 20th arranged. This results within the ring-like depression 11 mutual ribbing or stiffening.

5 shows a sectional side view of a joint housing 23 with a bearing shell according to the invention shown partially superimposed 1 according to 1 to 4th , with the bearing shell 1 is shown in a non-assembled state. In this embodiment, the joint housing 23 as an integral part of a chassis component 24 educated. In this embodiment, the chassis component 24 realized as a suspension arm.

The joint housing 23 has a joint recess for receiving the bearing shell 1 on. In this embodiment, the hinge recess 25th designed as a breakthrough. The joint recess 25th is rotationally symmetrical to the central longitudinal axis 12 educated. On one of the bearing shell opening 5 facing side has the joint recess 25th or the joint housing 23 a housing opening 26th . From the bearing shell opening 5 and the housing opening 26th can be a joint ball shown here only in dashed lines 27 partially extend out. The joint ball 27 can be part of an inner joint part not shown here. The inner joint part can have a pin section which extends out of the bearing shell opening 5 and the housing opening 26th extends out.

On one of the bearing shell opening 5 or the housing opening 26th the side facing away is the support surface 8th and the fret area 10 on a case back 28 of the joint housing 23 at. The case back 28 extends at right angles to the central longitudinal axis 12 . The case back 28 has a rotationally symmetrical to the central longitudinal axis 12 trained recess 29 on. The depression 29 corresponds to the central center, which is designed as an elevation 9 the support surface 8th educated. This is the central center, which is designed as an elevation 9 form-fitting in the recess 29 recorded.

In this embodiment, the case bottom 28 Part of a housing cover 30th . By means of the housing cover 30th is the housing recess 25th on one of the housing opening 26th remote side of the joint housing 23 locked.

An inside of the joint recess 25th has a stage 31 for positively receiving the ring-like edge section 16 the bearing shell 1 on. Here, the ring-like edge section 16 form-fit between the step 31 and the case back 28 of the housing cover 30th recorded or held.

The bearing shell 1 is here in its unassembled state and therefore only schematically and partially overlaid with the joint housing 23 shown. This shows that the spherical segment-shaped ring segment 14th in the unmounted state of the bearing shell 1 is only preformed. This is an inner radius of the spherical segment-shaped ring segment 14th larger than the outer radius of the joint ball 27 . There is also an outer radius of the spherical segment-shaped ring segment 14th greater than an inner radius of a section of the joint housing for receiving the spherical section-shaped ring section 14th .

6th shows a sectional side view of a ball joint according to the invention 32 with a mounted bearing shell according to the invention 1 according to 1 to 4th . Here is the ball joint 32 by means of a joint housing 23 according to 5 educated. In this respect, reference is also made to the preceding description.

Due to the assembly of the bearing shell 1 in the joint recess 25th is the spherical segment-shaped ring segment 14th deformed in such a way that an inside of the spherical segment-shaped ring segment 14th form-fit to the outer surface of the joint ball 27 applies. Due to the preforming of the spherical segment-shaped ring segment 14th in the unmounted state of the bearing shell 1 this results in a deformation of the material of the bearing shell 1 below a limit value to avoid a material crack and / or material breakage. In this exemplary embodiment, the material of the bearing shell is deformed 1 in the area of the spherical segment-shaped ring segment 14th in the form of an expansion and / or stretching of the material of the bearing shell 1 less than 6%.

One face 33 of the ring-like edge 4th the bearing shell 1 according to 1 and 3 lies on a contact surface 34 of the joint housing 23 at. The contact surface extends here 34 radial and at right angles to the central longitudinal axis 12 .

1

Lagerschale

2

Innenraum

3

Innenfläche

4

ringartiger Rand

5

Lagerschalenöffnung

6

Kanal

7

Ringnut

8

Abstützfläche

9

mittiges Zentrum

10

Bundfläche

11

ringartige Vertiefung

12

Mittellängsachse

13

Kreisrand

14

kugelabschnittsförmiger Ringabschnitt

15

Zylinderabschnitt

16

ringartiger Randabschnitt

17

Mittelpunkt

18

Äquatorebene

19

erste Innenseite

20

weitere Innenseite

21

Versteifungsrippe

22

Versteifungsrippe

23

Gelenkgehäuse

24

Fahrwerkbauteil

25

Gelenkausnehmung

26

Gehäuseöffnung

27

Gelenkkugel

28

Gehäuseboden

29

Vertiefung

30

Gehäusedeckel

31

Stufe

32

Kugelgelenk

33

Stirnseite

34

Anlagefläche

Reference number

1

Bearing shell

2

inner space

3

Inner surface

4th

ring-like edge

5

Bearing shell opening

6th

channel

7th

Ring groove

8th

Support surface

9

central center

10

Collar surface

11

ring-like depression

12

Central longitudinal axis

13

Edge of circle

14th

spherical segment-shaped ring section

15th

Cylinder section

16

ring-like edge section

17th

Focus

18th

Equatorial plane

19th

first inside

20th

further inside

21st

Stiffening rib

22nd

Stiffening rib

23

Joint housing

24

Chassis component

25th

Joint recess

26th

Housing opening

27

Joint ball

28

Case back

29

deepening

30th

Housing cover

31

step

32

Ball joint

33

Face

34

Contact surface

Claims (17)

Bearing shell for forming a ball joint (32) and with an interior (2) for movably receiving a joint ball (27), the interior (2) having an inner surface (3) in the shape of a spherical segment, with a bearing shell opening (5), and with one of the Support surface (8) facing away from the bearing shell opening (5) for placement on a housing base (28), the support surface (8) being designed like a circular disk and the support surface (8) being arranged centrally and / or coaxially to a central longitudinal axis (12) of the bearing shell (1) , characterized in that the support surface (8) starting from a circular edge (13) of the support surface (8) and in the direction of a central center (9) of the support surface (8) conically with an angle of less than 10 degrees or less than 5 degrees or less 3 Degree increases. Bearing shell after Claim 1 , characterized in that the support surface (8) has a diameter which corresponds to at least 2/3 or at least 3/4 of a maximum interior diameter of the interior (2), in particular the diameter of the support surface (8) extends at right angles to the central longitudinal axis (12) the bearing shell (1). Bearing shell after Claim 1 or 2 , characterized in that a section between the support surface (8) and the inner surface (3) of the interior (2), in particular in the axial direction of the central longitudinal axis (12) of the bearing shell (1), is solid and / or made of a solid material, preferably made of a plastic. Bearing shell according to one of the preceding claims, characterized in that the support surface (8) increases conically at an angle of 1 degree starting from a circular edge (13) of the support surface (8) and in the direction of a central center (9) of the support surface (8) . Bearing shell according to one of the preceding claims, characterized in that a central center (9) of the support surface (8) is designed as an injection point, in particular the central center (9) is designed as an elevation in the support surface (8). Bearing shell according to one of the preceding claims, characterized in that an annular collar surface (10) is formed around the center longitudinal axis (12) and the support surface (8) for contact with the housing base (28), in particular the support surface (8) is related to the collar surface (10) and in the axial direction of the central longitudinal axis (12) beyond the collar surface (10), the support surface (8) preferably protrudes less than 0.1 mm from the collar surface (10). Bearing shell after Claim 6 , characterized in that an annular recess (11) is formed between the collar surface (10) and the support surface (8), in particular the annular recess (11) is formed as a reservoir for receiving a lubricant. Bearing shell after Claim 7 , characterized in that several stiffening ribs (21, 22) are arranged within the ring-like recess (11), in particular the ring-like recess (11) has a first inner side (19) assigned to the support surface (8) and one assigned to the collar surface (10) further inside (20), wherein the stiffening ribs (21, 22), preferably seen in the circumferential direction of the bearing shell (1), are arranged alternately on the first inside (19) and the further inside (20). Bearing shell after Claim 7 or 8th , characterized in that at least one channel (6) extends from the inner surface (3) of the interior space (2) into the ring-like recess (11), In particular, the channel (6) is aligned parallel to the central longitudinal axis (12), and several channels (6) are preferably distributed evenly in the circumferential direction of the bearing shell (1). Bearing shell according to one of the preceding claims, characterized in that a first section of an outer circumference of the bearing shell (1) is designed as a spherical segment-shaped ring section (14), a second section of the outer circumference of the bearing shell (1) is designed as a cylinder section (15), and Another section of the outer circumference of the bearing shell (1) is designed as a ring-like edge section (16) protruding radially to the central longitudinal axis (12) outward beyond the cylinder section (15), the cylinder section (15) having the spherical section-like ring section (14) with the ring-like edge portion (16) connects. Bearing shell according to one of the preceding claims, characterized in that the bearing shell opening (5) is formed by a spherical segment-shaped ring section (14), the spherical segment-shaped ring section (14) is bent inwards radially to the central longitudinal axis (12) to form the bearing shell opening (5), wherein an inner radius and / or an outer radius of the spherical segment-shaped ring section (14) in an unassembled state of the bearing shell (1) is greater than an outer radius of the joint ball (27) and / or greater than an inner radius of a joint housing (23) for receiving the spherical segment-shaped ring section (14). Bearing shell after Claim 11 , characterized in that the inner radius and / or outer radius of the spherical segment-shaped ring section (14) is designed such that when the bearing shell (1) is installed in a joint housing (23), the material of the bearing shell (1) is deformed below a limit value in order to avoid a material crack, there is preferably a deformation in the form of an elongation and / or stretching of the material of the bearing shell (1) of less than 10% or less than 6%. Ball joint with a bearing shell (1) according to one of the preceding claims, wherein the bearing shell (1) is arranged in a joint housing (23) and the support surface (8) is in full contact with the housing base (28), characterized in that the support surface (8 ) starting from a circular edge (13) of the support surface (8) and in the direction of a central center (9) of the support surface (8) increases conically at an angle of less than 10 degrees or less than 5 degrees or less than 3 degrees. Ball joint after Claim 13 , characterized in that the housing base (28) is designed as part of a joint housing (23) or a housing cover (30), in particular an annular collar surface (10) running around the central longitudinal axis (12) and the support surface (8) is located on the housing base (28). Ball joint after Claim 13 or 14th , characterized in that a spherical segment-shaped ring section (14) of the bearing shell (1) rests positively on an inner wall of the joint housing (23), with a deformation of the material of the bearing shell (23) due to the assembly of the bearing shell (1) in the joint housing (23). 23) results below a limit value for avoiding a material crack, preferably there is a deformation in the form of elongation and / or stretching of the material of the bearing shell (1) of less than 10% or less than 6%. Ball joint according to one of the Claims 13 to 15th , characterized in that an end face (33) of an edge (4) of the bearing shell opening (5) on a radially and / or at right angles to the central longitudinal axis (12) of the bearing shell (1) inwardly extending contact surface (34) of the joint housing (23) is applied. Ball joint according to one of the Claims 13 to 16 , characterized in that the joint ball (27) is designed without a pole face, in particular as a solid ball, preferably the joint ball (27) is part of an inner joint part.

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