Connecting assembly

Abstract

The invention relates to a connecting assembly for connecting a mowing blade to a mowing blade drive, comprising • - a pin element (15) defining a longitudinal axis (LZ), • - a pivot bearing (16) having a bearing unit (17) and a spherical outer surface (18), • - a first receiving element (24) having a spherical inner surface (25) formed so as to be complementary to the outer surface (18) of the pivot bearing (16) and • - a second receiving element (26) having a contact portion (27) arranged in the longitudinal axis direction of the pin element (15) at a distance from the inner surface (25) of the first receiving element (24), • - wherein the pin element (15) is arranged on the bearing unit (17) to rotate about the longitudinal axis (LZ) and • - wherein the pivot bearing (16) is received by the spherical inner surface (25) of the first receiving element (24). In order to provide a connecting assembly for connecting a mowing blade to a blade drive, said connecting assembly having a longer service life, the contact portion (27) of the second receiving element (26) is axially preloaded against the pivot bearing (16) in the direction of the inner surface (25) of the first receiving element (24).

Description

[0001] Connection arrangement

[0002] Description

[0003] The invention relates to a connection arrangement, for example for connecting a mower blade to a mower blade drive, comprising a pin element defining a longitudinal axis, a pivot bearing with a bearing unit and a spherical outer surface, a first receiving element with a spherical inner surface formed complementary to the outer surface of the pivot bearing, and a second receiving element with a contact section arranged in the longitudinal axis direction of the pin element at a distance from the inner surface of the first receiving element. The pin element is rotatably arranged about the longitudinal axis on the bearing unit, and the pivot bearing is received by the spherical inner surface of the first receiving element.

[0004] Connection arrangements of the type mentioned above are used, for example, to transfer the movements generated by a mower blade drive, in particular reciprocating linear movements, to a mower blade.

[0005] Such a connection arrangement is known, for example, from EP 3 721 694 A1. There, a clamping cup comprises at least two joined separate components, namely a base element and a sleeve element. This eliminates the need for radial expansion of the clamping cup to overcome an undercut between the clamping cup and the rotary bearing when mounting it on the rotary bearing. The first receiving element has a circular cylindrical outer surface, which engages it in a circular cylindrical through-bore of a connecting element. The connecting element is designed as an open ring, allowing the diameter of the circular cylindrical through-bore to be reduced by means of a clamping screw to secure the first receiving element within the bore.In practice, however, it has been shown that assembly tolerances and / or wear of individual components can lead to misalignment of the center axis of the circular cylindrical through-hole and the pivot axis of the swivel bearing. This results in a deviation, particularly in mower blade drives, of the drive plane in which the connecting element is driven in an oscillating manner from the blade plane in which the mower blade is guided. This leads to increased wear on the mower blade.

[0006] From DE 899 003 B, a joint connection for tie rod ends in the steering system of motor vehicles is known. The joint connection comprises a pin rotatably mounted in a bearing body, with a cylindrical shaft section and a flange. The bearing body is pivotally mounted in a housing. A needle bearing is arranged between the shaft of the pin and the bearing body to absorb radial forces. A roller bearing is arranged between the flange and the bearing body to absorb axial forces. A compression spring acts on a cup-shaped holder, which axially preloads the pin and holds the bearing assembly in position. Because the compression spring presses directly against the pin, material fatigue occurs at the contact surfaces between the holder and the pin due to permanent preload, resulting in increased wear.Furthermore, the disadvantage is that, due to the preload on the journal, the roller bearing is absolutely necessary to absorb axial forces and thus other components that are subject to increased wear.

[0007] The invention is based on the objective of providing a connection arrangement, in particular for connecting a mower blade to a blade drive, which has an increased service life.

[0008] The problem is solved by a connection arrangement, in particular for connecting a mower blade to a mower blade drive, comprising a pin element defining a longitudinal axis, a pivot bearing with a bearing unit and a spherical outer surface, a first receiving element with a spherical inner surface formed complementary to the outer surface of the pivot bearing, and a second receiving element with a contact section arranged in the longitudinal axis direction of the pin element at a distance from the inner surface of the first receiving element, wherein the pin element is rotatably arranged about the longitudinal axis on the bearing unit and the pivot bearing is received by the spherical inner surface of the first receiving element, wherein the second receiving element is axially preloaded with the contact section in the direction towards the inner surface of the first receiving element against the pivot bearing.

[0009] The connecting arrangement, for example a head bearing, is preferably designed such that a mower blade can be connected to a mower blade drive. For example, the connecting arrangement can be connected to the mower blade drive via the pin element.

[0010] The pin element is preferably designed such that a movement generated by the mower blade drive, in particular a reciprocating linear movement, can be transmitted to the mower blade. Preferably, the pin element has an axial section and a connecting section for coupling to the mower blade drive. The axial section of the pin element has a preferably circular cross-section extending in the direction of the longitudinal axis of the pin element. The connecting section is preferably designed such that the connection assembly can be connected to the mower blade drive. For example, the connecting section has at least one, preferably two, bores for receiving connecting elements, such as screws.

[0011] The pivot element is rotatably arranged about its longitudinal axis on the bearing unit of the swivel bearing. The bearing unit can be, for example, a plain bearing or, preferably, a rolling bearing. A needle roller bearing is particularly preferred. It is understood that, in principle, other rolling bearings, such as a double-row angular contact ball bearing or a double-row tapered roller bearing, can also be used.

[0012] The pivot bearing and / or the first receiving element are preferably designed to compensate for tolerances, for example, during operation of the mower blade. The spherical outer surface is preferably arranged on a spherical body of the pivot bearing. Preferably, the spherical body has a cavity extending in the direction of the longitudinal axis of the pin element. The bearing unit is, for example, arranged in the cavity of the spherical body.

[0013] According to the invention, the pivot bearing is received by the spherical inner surface of the first receiving element. The spherical inner surface is complementary to the spherical outer surface of the pivot bearing. When the pivot bearing is pivoted to compensate for tolerances during the assembly of the connection arrangement and / or to compensate for tolerances that occur during operation, the spherical outer surface of the pivot bearing, preferably the ball body of the pivot bearing, slides on the spherical inner surface of the first receiving element. For this purpose, the pivot bearing is pivotably received with its spherical outer surface in the spherical inner surface of the first receiving element. Depending on the pivot position of the pivot bearing, in particular of the ball body, the longitudinal axis of the pin element is arranged, for example, in a longitudinal axis of the first receiving element or at an angle to the longitudinal axis of the first receiving element.In a neutral position, the longitudinal axis of the pin element is preferably arranged in the longitudinal axis of the receiving element.

[0014] According to the invention, the second receiving element has a contact section arranged, preferably relative to the zero position, in the longitudinal axis direction of the pin element at a distance from the inner surface of the first receiving element, which is axially preloaded towards the inner surface of the first receiving element against the pivot bearing. The contact section preferably describes a region of the second receiving element that abuts the pivot bearing, in particular the ball body of the pivot bearing. The pivot bearing is clamped between the receiving elements by means of the preload of the contact section towards the inner surface.

[0015] The second mounting element, axially preloaded towards the inner surface of the first mounting element against the swivel bearing, allows for continuous readjustment relative to the first mounting element to compensate for wear during operation. This, in turn, leads to reduced wear between the swivel bearing and the first and second mounting elements. This enables a low-maintenance connection arrangement with an extended service life.

[0016] The second receiving element is configured, for example, such that the contact section abuts an end section of the swivel bearing, for instance, an end face of the spherical body. According to an advantageous embodiment of the invention, the contact section of the second receiving element has a spherical contact surface formed complementary to the outer surface of the swivel bearing. The spherical inner surface of the first receiving element and the spherical contact surface of the second receiving element are preferably spaced apart from each other in the axial direction of the longitudinal axis of the first receiving element. The spherical inner surface and the spherical contact surface preferably do not merge into one another. For receiving the swivel bearing between the receiving elements, the spherical contact surface can have the same curvature in the direction of the longitudinal axis of the first receiving element as the spherical inner surface.

[0017] According to this embodiment, the spherical outer surface of the swivel bearing, in particular of the ball body of the swivel bearing, is received by the spherical inner surface and the spherical contact surface. The contact section is preferably formed and / or arranged on the swivel bearing such that the spherical contact surface of the second receiving element and the spherical inner surface of the first receiving element are arranged to face each other, at least partially, for receiving the swivel bearing.

[0018] Particularly preferred is the distance between the contact surface of the second receiving element and the inner surface of the first receiving element adapted to the diameter of the spherical body, i.e., that the spherical body is preferably pivotably arranged between the contact surface and the inner surface.

[0019] According to an advantageous embodiment of the invention, the inner surface of the first receiving element and the contact section of the second receiving element are formed and / or arranged such that the receiving elements are axially clamped to each other in the longitudinal direction of the pin element. The two receiving elements are preferably formed as separate components. Particularly preferably, the two receiving elements are arranged relative to each other such that the inner surface of the first receiving element and the contact surface of the second receiving element clamp around the pivot bearing, in particular the ball body of the pivot bearing, relative to the zero position, in the longitudinal direction of the pin element. Clamping preferably means that the spherical outer surface of the pivot bearing is encompassed by the inner surface of the first receiving element and the contact surface of the second receiving element.Particularly preferably, the first receiving element and / or the second receiving element are formed as a ring. For example, the second receiving element can be connected to the first receiving element for mutual bracing of the receiving elements or axially supported against it.

[0020] According to an advantageous embodiment of the invention, the second receiving element is axially spring-loaded by a spring element in the direction of the inner surface of the first receiving element. The spring element is preferably designed as a wave spring or disc spring. Several spring elements, for example arranged in parallel or in series, can also be provided. Alternatively or additionally, the preload of the first and / or second receiving element can be achieved by means of the aforementioned threaded connection.

[0021] The second receiving element is preferably adjustable on the first receiving element. Particularly preferably, the second receiving element is adjustable along a longitudinal axis parallel to the longitudinal axis of the pin element, relative to the zero position. The spring element is preferably arranged on the first and / or second receiving element such that the receiving elements are preloaded relative to each other. Preferably, the spring element is supported on the first receiving element, for example, by a stop, whereby the spring preload presses the second receiving element towards the inner surface. By supporting the spring element on the first receiving element, the spring preload is also transferred to the first receiving element.Because the connection arrangement has a spring element for pre-tensioning the first and / or second receiving element, an automatic adjustment of the second receiving element relative to the first receiving element is achieved using simple means.

[0022] According to an advantageous embodiment of the invention, the pivot bearing and / or the second receiving element and / or the spring element are arranged in an interior space of the first receiving element. The first receiving element is preferably cylindrical and has a cross-section, for example circular, extending in the direction of the longitudinal axis of the first receiving element between a first and a second end face. The end faces describe the terminal cross-sectional surfaces of the first receiving element. The first end face is arranged at a first end of the first receiving element facing away from the pin element. Correspondingly, the second end face is arranged at the second end of the first receiving element facing away from the first end face.

[0023] The interior space is a free region penetrating the first receiving element in the direction of its longitudinal axis, from the first end face to the second end face. In the radial direction to the longitudinal axis of the first receiving element, the interior space is preferably bounded by a wall of the first receiving element. The first receiving element is preferably configured such that the cross-section of the interior space at the second end face is smaller than at the first end face.

[0024] The swivel bearing, the second receiving element, and the spring element are particularly preferably arranged in the interior of the first receiving element.

[0025] According to an advantageous embodiment of the invention, the first receiving element has a cover element for closing the interior at an end section facing away from the pin element. The end section is preferably arranged at the first end of the first receiving element. The end section of the first receiving element is understood to be a section of the first receiving element, in particular the wall of the first receiving element, that projects beyond the pin element in the longitudinal axis direction. The cover element is preferably designed such that the interior of the first receiving element can be sealed. For example, a sealing element, such as a sealing ring, is provided on the cover element and / or the first receiving element for sealing the interior. The cover element is particularly preferably inserted into the first receiving element as a separate component.The spring element is preferably arranged along the longitudinal axis of the first receiving element between the second receiving element and the cover element, so that the spring element is particularly preferably supported by the cover element. The advantageously provided cover element allows for easy and quick assembly or, if necessary for the unlikely event of maintenance, disassembly of the connection assembly. Furthermore, the spring element can be supported by the cover element against the first receiving element, so that the spring preload for mutual clamping of the receiving elements can be transferred to the first receiving element particularly easily.

[0026] According to an advantageous embodiment of the invention, the connection arrangement includes a locking element located on the first receiving element and the pivot bearing to block the rotation of the pivot bearing about the longitudinal axis of the pin element. The locking element is arranged on the first receiving element and the pivot bearing such that the rotation of the pivot bearing about the longitudinal axis of the pin element is blocked. Preferably, the locking element is located in the interior of the first receiving element between the pivot bearing and the wall of the first receiving element. The locking element enables the pivot bearing to be fixed in a simple and reliable manner in the circumferential direction of the longitudinal axis of the pin element, thus preventing relative movement of the pivot bearing and the first receiving element to each other during operation of the mower blade.This ensures that all rotational movement is absorbed by the bearing unit, thus preventing wear on the spherical surfaces and increasing the service life of the connection assembly. Furthermore, significantly higher rotational speeds can be achieved than with conventional spherical bearings, since the rotation is handled exclusively by the bearing unit.

[0027] The spherical surfaces allow the swivel bearing to pivot relative to the first mounting element. Furthermore, axial adjustment of the pin element relative to the swivel bearing is possible. Both of these features contribute to ensuring that assembly and manufacturing tolerances, as well as tolerances due to wear during operation, are always compensated for.

[0028] According to an advantageous embodiment of the invention, the swivel bearing has an axial guide for the locking element, along which the locking element is guided. The axial guide is preferably arranged on the spherical outer surface of the swivel bearing. Particularly preferably, the axial guide is arranged along a circumference of the spherical outer surface of the swivel bearing in the direction of the longitudinal axis of the pin element. Particularly preferably, the guide is designed such that the locking element is at least partially received in the guide. At least two, or preferably three, guides can also be provided, distributed around the longitudinal axis of the pin element in the circumferential direction of the swivel bearing, in particular the ball body, thereby enabling particularly rapid assembly of the connection.The axial guidance advantageously ensures that the rotation of the swivel bearing is blocked by the locking element, but that pivoting of the swivel bearing in the first receiving element is still possible.

[0029] According to an advantageous embodiment of the invention, the locking element is supported in a recess of the first receiving element and / or the guide of the pivot bearing.

[0030] Preferably, the locking element is guided in the guide and axially fixed, i.e., in the longitudinal direction of the first receiving element, by the recess. The recess is preferably an opening penetrating the wall of the first receiving element at an angle, preferably perpendicular to the longitudinal axis of the first receiving element. Particularly preferably, the recess of the first receiving element is formed as a radial bore whose diameter is smaller than the diameter of the locking element. The first receiving element preferably has a stop for supporting the locking element, in particular the ball element, in the longitudinal direction of the receiving element, thereby counteracting unwanted movement of the locking element in the guide. The locking element is particularly preferably formed as a ball element.Because the locking element is formed as a spherical element, the assembly of the connection arrangement can be further simplified and, moreover, the wear of the locking element and the swivel bearing can be reduced.

[0031] Alternatively, the locking element can, for example, be formed integrally with the first receiving element or be adjustable on the first receiving element. For example, the locking element is formed as a projection extending from the wall into the interior. Alternatively or additionally, the locking element is formed, for example, as a pin adjustable in the radial direction relative to the longitudinal axis of the first receiving element between a release position that permits rotation of the pivot bearing and a locking position that blocks rotation of the pivot bearing.

[0032] To assemble the connection, the locking element, then the swivel bearing, the second mounting element, and finally the spring element are arranged inside the first mounting element, starting from the first end face and following the longitudinal axis of the first mounting element. This arrangement of the components inside the first mounting element allows for a simple and compact design for the connection, as well as easy assembly.

[0033] An embodiment of the invention is explained below with reference to the drawings. The drawings show:

[0034] Figure 1 shows a top view of a mower blade with a connecting arrangement for connecting a mower blade to a blade drive.

[0035] Figure 2 is a schematic representation of a perspective view of the connection arrangement from Figure 1.

[0036] Figure 3 shows a section along a longitudinal axis of a pin element through the connection arrangement from Figures 1 and 2,

[0037] Figure 4 shows a schematic perspective view of a pivot bearing arranged in a first receiving element of the connection arrangement from Figures 1 to 3.

[0038] Figure 5 shows a cross-section through the swivel bearing and the first receiving element from Figure 4, and

[0039] Figure 6 shows a section along the longitudinal axis of the pin element through the connection arrangement from Figures 1 to 3 with the wasteful pivot bearing.

[0040] Figures 1 to 5, which are described together below, show a connection arrangement 14 and its attachment to a mower blade 1. The view in Figure 1 shows a section of a mower blade 1 with the blade back 2 and a blade 3 attached thereto, wherein a plurality of such blades 3 are attached to the blade back 2 in the plane of the blade, extending from the blade back 2. At the end of the blade back 2, a connecting element 4 in the form of a blade head eye is attached, which has a through-bore 6 extending through it and centered on a longitudinal axis L.

[0041] The connecting element 4 is designed as an open ring. A gap 9 runs coaxially to the longitudinal axis L. It could also be arranged at an angle to the same.

[0042] On either side of the gap 9 are two projections 10, 10' extending away from the longitudinal axis L. Projection 10 is provided with a through bore 12, which is arranged on an axis 8 that intersects the longitudinal axis 5 at a distance. A threaded bore 13 is arranged in projection 10' on the axis 8 of this bore 12. A clamping screw 11, which may be designed as a cap screw, passes through the bore 12 and is screwed into the threaded bore 13, thus reducing the cross-section of the through bore 6 of the connecting element 4, depending on how tightly the clamping screw 11 is tightened. Alternatively, as shown in Figure 2, a through bore can be provided in both projections 10, 10' through which the clamping screw 11 passes, in which case it is tightened with a nut.A connecting arrangement 14 is located in the through-hole 6, which can be securely fastened to the connecting element 4 via the clamping screws 11.

[0043] In the circular cylindrical through bore 6 sits a connection arrangement 14 with a pin element 15 defining a longitudinal axis LZ and a pivot bearing 16, as shown in Figure 2, with a bearing unit in the form of a needle bearing 17 and a spherical outer surface 18.

[0044] The pin element 15 has an axle section 19 and a connecting section 20 for coupling to a mower blade drive. The axle section 19 of the pin element 15 has a circular cross-section 21 extending in the direction of the longitudinal axis LZ of the pin element 15. The connecting section 20 has at least two bores 7 for receiving screws.

[0045] The pin element 15 is rotatably mounted on the needle bearing 17 of the swivel bearing 16 with its axial section 19 about the longitudinal axis LZ of the pin element 15. The spherical outer surface 18 is located on a spherical body 22 of the swivel bearing 16. The spherical body 22 has a cavity 23 extending in the direction of the longitudinal axis LZ of the pin element 15. The needle bearing 17 is located in the cavity 23 of the spherical body 22.

[0046] The connection arrangement 14 further comprises a first receiving element 24 with a spherical inner surface 25 formed complementary to the outer surface 18 of the pivot bearing 16, and a second receiving element 26 with a contact section 27 arranged in the longitudinal axis direction of the pin element 15 at a distance from the inner surface 25 of the first receiving element 24. The contact section 27 of the second receiving element 26 has a spherical contact surface 28 formed complementary to the outer surface 18 of the pivot bearing 16.

[0047] The swivel bearing 16 is received by the spherical inner surface 25 of the first receiving element 24 and the spherical contact surface 28 of the second receiving element 26. The spherical inner surface 25 and the spherical contact surface 28 are complementary to the spherical outer surface 18 of the swivel bearing 16. When the swivel bearing 16 is pivoted to compensate for tolerances during the assembly of the connection assembly 14, the spherical outer surface 18 of the swivel bearing 16 slides on the spherical inner surface 25 of the first receiving element 24 and the spherical contact surface 28 of the second receiving element 26. Depending on the pivot position of the pivot bearing 16, the longitudinal axis LZ of the pin element 15, as shown in Figure 2, is arranged in a longitudinal axis LA of the first receiving element 24 or, as shown in Figure 6, at an angle to the longitudinal axis LA of the first receiving element 24.In a zero position, as shown in Figure 2, the longitudinal axis LZ of the pin element 15 is arranged in the longitudinal axis LA of the first receiving element 24.

[0048] The receiving elements 24, 26 are axially clamped to each other in the longitudinal direction of the pin element 15 by a spring element 29, thereby clamping the pivot bearing 16 between the two receiving elements 24, 26. The two receiving elements 24, 26 are arranged relative to each other such that the inner surface 25 of the first receiving element 24 and the contact surface 28 of the second receiving element 26 clamp the pivot bearing 16 in the longitudinal direction of the pin element 15, relative to the zero position, i.e., that the spherical outer surface 18 of the pivot bearing 16 is encompassed by the inner surface 25 of the first receiving element 24 and the contact surface 28 of the second receiving element 26.

[0049] The second receiving element 26 is axially spring-loaded by the spring element 29 in the direction of the inner surface 25 of the first receiving element 24. The pivot bearing 16, the second receiving element 26, and the spring element 29 are arranged in an interior space 30 of the first receiving element 24. The first receiving element 24 has a cover element 32 at an end section 31 facing away from the pin element 15 for closing the interior space 30. The cover element 32 is designed such that the interior space 30 of the first receiving element 24 can be sealed. For this purpose, sealing elements 33 are provided, for example, on the cover element 32 and the first receiving element 24.The spring element 29 is arranged in the direction of the longitudinal axis LA of the first receiving element 24 between the second receiving element 26 and the cover element 32, so that the spring element 29 is supported on the cover element 32 and the spring preload is transferred to the first receiving element 24 for mutual clamping of the receiving elements 24, 26.

[0050] The connection arrangement 14 further comprises a locking element in the form of a ball element 34, arranged on the first receiving element 24 and the pivot bearing 16, for blocking the rotation of the pivot bearing 16 about the longitudinal axis LZ of the pin element 15. The ball element 34 is arranged in the interior 30 of the first receiving element 24 between the pivot bearing 16 and the first receiving element 24.

[0051] The pivot bearing 16 has an axial guide 35 for the ball element 34 arranged on its spherical outer surface 18. The axial guide is, for example, formed as a longitudinal groove 35 extending along the spherical outer surface 18 in the direction of the longitudinal axis LZ of the pin element 15 to receive the ball element. The longitudinal groove 35 is arranged along a circumference 5 of the spherical outer surface 18 of the pivot bearing 16 in the direction of the longitudinal axis LZ of the pin element 15. The first receiving element 24 has a recess 36 for receiving the ball element 34. The ball element 34 is guided in the longitudinal groove 35 and axially fixed by the recess 36, i.e., in the longitudinal direction of the first receiving element 24.The recess of the first receiving element 24 is formed as a radial bore 36, the diameter of which is smaller than the diameter of the ball element 34. As shown in Figure 5, several guides 35 are also possible, which simplifies the assembly of the connection arrangement 14.

[0052] The ball element 34 counteracts unwanted rotation of the swivel bearing 16 about the longitudinal axis LZ of the pin element 15 and thus frictional effects between the swivel bearing 16 and the first receiving element 24. This reduces wear on the connection assembly 14 and thus enables a low-maintenance connection assembly 14 with an increased service life, even though the swivel bearing 16 is pivotably arranged in the first receiving element 24. Reference numeral list

[0053] 1 mower blade

[0054] 2 knife backs

[0055] 3 knife blade

[0056] 4 Connecting element

[0057] 5. Extent of the spherical outer surface

[0058] 6 through holes

[0059] 7 bore

[0060] 8-axis

[0061] 9 columns

[0062] 10, 10' approach

[0063] 11 Tensioning screw

[0064] 12 bore

[0065] 13 threaded holes

[0066] 14 Connection arrangement

[0067] 15 pin element

[0068] 16 swivel bearings

[0069] 17 bearing unit (needle bearing)

[0070] 18 spherical outer surface

[0071] 19 Axle section

[0072] 20 Connecting section

[0073] 21 Cross-section of the axle section

[0074] 22 spherical bodies

[0075] 23 Cavity

[0076] 24 first recording element

[0077] 25 spherical inner surface

[0078] 26 second recording element

[0079] 27 Contact section 28 Spherical contact surface

[0080] 29 Spring element

[0081] 30 Interior

[0082] 31 Final section

[0083] 32 Cover element

[0084] 33 Sealing element

[0085] 34 Safety element (ball element)

[0086] 35 Guide (longitudinal groove)

[0087] 36 Recess (radial bore)

[0088] L Longitudinal axis

[0089] LA Longitudinal axis of the first receiving element

[0090] LZ Longitudinal axis of the pin element

Claims

Claims 1. Connection arrangement comprising a pin element (15) defining a longitudinal axis (LA), a pivot bearing (16) with a bearing unit (17) and a spherical outer surface (18), a first receiving element (24) with a spherical inner surface (25) formed complementary to the outer surface (18) of the pivot bearing (16), and a second receiving element (26) with a contact section (27) arranged in the longitudinal axis direction of the pin element (15) at a distance from the inner surface (25) of the first receiving element (24), wherein the pin element (15) is rotatably arranged about the longitudinal axis (LA) on the bearing unit (17), and wherein the pivot bearing (16) is received by the spherical inner surface (25) of the first receiving element (24), characterized in that the second receiving element (26) with the contact section (27) faces the pivot bearing in the direction of the inner surface (25) of the first receiving element (24). (16) is axially preloaded.

2. Connection arrangement according to claim 1, characterized in that the contact section (27) of the second receiving element (26) has a spherical contact surface (28) formed complementary to the outer surface (18) of the pivot bearing (16).

3. Connection arrangement according to claim 1 or 2, characterized in that the inner surface (25) of the first receiving element (24) and the contact section (27) of the second receiving element (26) are formed and / or arranged such that the receiving elements (24, 26) are axially clamped to each other in the longitudinal axis direction of the pin element (15).

4. Connection arrangement according to one of claims 1 to 3, characterized in that the second receiving element (26) is axially spring-loaded by a spring element (29) in the direction of the inner surface (25) of the first receiving element (24).

5. Connection arrangement according to one of claims 1 to 4, characterized in that the pivot bearing (16) and / or the second receiving element (26) and / or the spring element (29) are arranged in an interior space (30) of the first receiving element (14).

6. Connection arrangement according to claim 5, characterized in that the first receiving element (24) has a cover element (32) for closing the interior (30) at an end section (31) facing away from the pin element (15).

7. Connection arrangement according to claim 6, characterized in that the cover element (32) is inserted as a separate component into the first receiving element (24).

8. Connection arrangement according to claim 6 or 7, characterized in that the spring element (29) is positioned in the direction of a longitudinal axis (LA) of the first receiving element (24) between the second receiving element (26) and the Cover element (32) is arranged.

9. Connection arrangement according to one of claims 1 to 8, characterized by a locking element (34) arranged on the first receiving element (24) and the pivot bearing (16) for blocking the rotation of the pivot bearing (16) about the longitudinal axis (LZ) of the pin element (15).

10. Connection arrangement according to claim 9, characterized in that the pivot bearing (16) has an axial guide (35) for the locking element (34) along which the locking element (34) is guided.

11. Connection arrangement according to claim 10, characterized in that the axial guide (35) is arranged along a circumference (5) of the spherical outer surface (18) of the pivot bearing (16) in the direction of the longitudinal axis (LZ) of the pin element (15).

12. Connection arrangement according to one of claims 9 to 11, characterized in that the locking element (34) is supported in a recess (36) of the first receiving element (24) and / or the guide (35) of the pivot bearing (16).

13. Connection arrangement according to claim 12, characterized in that the recess of the first receiving element (24) is formed as a radial bore (36) whose diameter is smaller than the diameter of the locking element (34).

14. Connection arrangement according to one of claims 9 to 13, characterized in that the locking element is formed as a spherical element (34).

15. Connection arrangement according to one of claims 1 to 14, characterized in that the spring element (16) is formed as a wave spring or disc spring.

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