Locking structure for locking ring of motor vehicle, and motor vehicle

Abstract

The invention relates to a locking arrangement (10) of a locking ring (12) on a first component (14) and on a second component (16) for a motor vehicle, the locking ring (12) being partially arranged in a groove (18) on the outer circumferential side of the first component (14). The locking ring (12) is bent at its two free ends (24, 26) opposite each other in the same direction (28) extending in the axial direction (58) of the locking ring (12). The two free ends (24, 26) of the locking ring (12) are inserted in respective first axial pockets (30, 32) of the first component (14) in the axial direction (58) of the locking ring (12). The two free ends (24, 26) of the locking ring are inserted in respective second axial slots (44, 46) of the second component (16) in the axial direction (58) of the locking ring (12).

Description

Technical Field

[0001] The invention relates to a locking arrangement for a motor vehicle, a locking ring on a first component and a second component. In addition, the invention relates to a motor vehicle, in particular a motor vehicle, having at least one such locking device. Background Art

[0002] DE 10 2019 121 294 A1 discloses a locking ring for a radial groove of a coupling device, wherein the radial groove is formed by an axially extending finger-shaped piece, which is bent radially inward at its free end and thus forms a radial groove for the locking ring. Summary of the invention

[0003] The object of the present invention is to provide a locking arrangement for a motor vehicle, a locking ring on a first component and a second component, and a motor vehicle having at least one such locking arrangement, which allows a wide range of functions to be implemented.

[0004] This object is achieved by a locking arrangement having the features of claim 1 and a motor vehicle having the features of claim 8. Advantageous embodiments with suitable inventive developments are described in the dependent claims.

[0005] A first aspect of the invention relates to a locking structure for a motor vehicle, in which a locking ring is attached to a first component and a second component, the motor vehicle being in particular preferably designed as a passenger car. This means that the motor vehicle, which is preferably designed as a passenger car and is also referred to as a vehicle for short, has a locking structure in its fully manufactured state and therefore comprises a locking ring, a first component and a second component. The first component and the second component are more preferably components of a coupling device / clutch device of the motor vehicle, in particular components of a coupling / clutch. The locking ring and the components are more particularly components of a pawl brake, by means of which, for example, a planetary gear carrier of a planetary gear set can be fixed to a housing in a rotationally fixed manner, in particular in a form-fitting manner, and thus prevented from rotating relative to the housing.

[0006] In the locking structure, the locking ring is partially arranged in the outer peripheral groove of the first component. This means that the first partial area of ​​the locking ring is arranged in the groove of the first component, especially in the radial direction of the locking ring. The second partial area of ​​the locking ring, especially in the radial direction of the locking ring, especially in contact with the first partial area outward, is arranged outside the groove, so it protrudes from the groove, so that the locking ring partially protrudes outside the groove. The feature "the groove of the first component is a groove on the outer peripheral side of the first component" especially refers to the fact that the groove is arranged, especially opened on the outer periphery of the first component. Therefore, the groove is, for example, a groove on the outer peripheral side circumference of the first component, and therefore a recess, so that the groove is open outward, for example, in the radial direction of the locking ring and therefore in the radial direction of the component. The groove is also called a radial groove or is designed as a radial groove. The groove extends completely around the first component, especially in the circumferential direction extending around the axial direction of the locking ring and therefore around the axial direction of the component.

[0007] The locking ring has in particular exactly two free ends, which are located opposite one another in particular in a circumferential direction of the locking ring extending around the axial direction of the locking ring. In particular, the free ends are spaced apart from one another in particular in the circumferential direction of the locking ring. The locking ring is bent at its two opposite free ends in the same direction extending in the axial direction of the locking ring. In other words, the free ends are bent or folded in the same axial direction. The feature "the direction extends in the axial direction of the locking ring" means that the direction extends parallel to the axial direction of the locking ring or coincides with the axial direction of the locking ring.

[0008] The two free ends of the locking ring are inserted into respective first axial grooves of the first component in the axial direction of the locking ring, in particular because they are axially bent or folded. In particular, the first grooves of the first component are arranged beside the groove in the axial direction of the locking ring and therefore in the axial direction of the component, and therefore beside the groove, so that the first grooves follow the groove in the axial direction or are connected to the groove. The respective first grooves are bounded on both sides in the circumference of the locking ring and therefore in the circumference of the component by first walls of the first component, which are respectively designed to be solid and preferably inherently rigid, so that the free ends can be supported or supported on at least two of the first wall parts in the circumference of the locking ring. In this way, relative rotation between the locking ring and the first component can be avoided or at least limited, more precisely, relative rotation in a first rotation direction extending around the rotation axis and in a second rotation direction extending around the rotation axis and opposite to the first rotation direction. This is achieved in particular in that, for example, one of the free ends can be supported or supported on one of the first walls of one of the first pockets in the first rotational direction, while the other end can be supported or supported on one of the first walls of another of the first pockets in the second rotational direction. Here, the circumference of the locking ring extends around a rotation axis, which extends in the axial direction of the locking ring, wherein, for example, the rotation axis coincides with the axial direction of the locking ring or extends parallel thereto.

[0009] In the locking structure according to the present invention, the two free ends of the locking ring are inserted into the respective second axial grooves of the second component in the axial direction of the locking ring and thus in the axial direction of the component, thereby also avoiding or at least limiting relative rotation between the locking ring and the second component around the rotation axis. The above and below descriptions about the first groove can also be directly transferred to the second groove, so that for example, the respective second groove is bounded on both sides by the second wall portions of the second component, which are respectively designed as solid and preferably stable in shape, i.e. inherently rigid, in the circumferential direction of the locking ring and thus in the circumferential direction of the component. Therefore, for example, one free end of the locking ring can be supported or supported on one of the second wall portions of one of the second grooves in the first rotation direction, and the other free end of the locking ring can be supported or supported on one of the second wall portions of another of the second grooves in the second rotation direction. Since the free ends are inserted into the first groove of the first component and the second groove of the second component, relative rotation between the components around the rotation axis is also avoided or limited. Here, the rotation axis extends in the axial direction of the locking ring, wherein the rotation axis particularly coincides with the axial direction of the locking ring. In addition, the components are locked axially, i.e., in the axial direction of the locking ring, to each other or relative to each other by means of the locking ring, so that the axial relative movement between the components, i.e., the relative movement in the axial direction of the locking ring, is avoided or at least limited by means of the locking ring. Therefore, a very wide range of functions can be achieved by the present invention. On the one hand, axial fixation of the components can be achieved, wherein, for example, the second component is axially fixed to the first component or vice versa by means of the locking ring. On the other hand, the locking ring itself is fixed in a rotationally fixed manner relative to both the first component and the second component. In addition, the components are fixed to each other or relative to each other by means of the locking ring. The large functional range can be achieved here without radially thickening the locking ring, because the locking ring is not inserted into the recess in the radial direction, but is inserted into the groove in the axial direction.

[0010] The second component is arranged radially outside the first component, for example. For example, the second component has an inner radius that is smaller than the outer radius of the locking ring. The first groove and the second groove are axially aligned or aligned. This means that each groove is an axial recess, thus an axially extending recess, into which each end is inserted axially, i.e., in the axial direction of the locking ring. The present invention is based in particular on the following recognition and consideration: in the case of inserting the locking ring, for example, in a coupling device, in common solutions, due to high rotation speeds and the centrifugal forces that occur as a result, a tangential rotation of the locking ring, i.e., in the circumferential direction of the locking ring, may occur, especially relative to the components that are axially fixed together by means of the locking ring. This may lead to increased wear due to the insertion of the locking ring into the groove and, in particular, its groove geometry. This influence has an adverse effect on the service life, and therefore this tangential rotation of the locking ring relative to the first component having the groove should be avoided. Excessive rotation of the locking ring relative to the first component having the groove is usually solved in this way, that is, the locking ring has an anti-rotation mechanism, which includes at least one cross-sectional change of the locking ring on its circumference / periphery. In the counterpart and therefore in the first component in which the locking ring is partially seated, a groove has to be provided, and for this purpose a local increase in the groove depth must be achieved. However, a disadvantage of this anti-rotation mechanism is that the groove requires more radial installation space to realize the anti-rotation mechanism than a solution without an anti-rotation mechanism, but here, if corresponding countermeasures are not taken, an undesired rotation of the locking ring relative to the first component may occur.

[0011] The aforementioned problems and disadvantages can be avoided by the present invention. Firstly, the present invention allows to avoid unwanted relative rotation between components and between the locking ring and the first component and between the locking ring and the second component. This can be achieved by inserting the end into the axial groove, thereby achieving anti-rotation of the locking ring relative to both the first component and the second component, and thereby achieving anti-rotation of the first component relative to the second component and the opposite anti-rotation. This anti-rotation can be achieved without causing excessive radial structural space requirements, because changes in the cross section of the locking ring over its circumference and local increases in the groove depth of the groove can be avoided. In other words, a wide range of functions can be achieved without increasing the radial structural space, similar to a locking ring without an anti-rotation mechanism.

[0012] In order to reliably avoid excessive relative rotation between the locking ring and the respective components and between the components, in one embodiment of the present invention, it is provided that the locking ring is bent at least or exactly 10° at its two mutually opposite free ends in the same direction extending in the axial direction of the locking ring. In other words, it is preferably provided that the free ends are bent or bent at least or exactly 10° in the same axial direction.

[0013] The present invention is an efficient method for saving radial structural space and simultaneously locking the locking ring and the components to prevent tangential movement and thus rotation.

[0014] The locking ring is preferably made of a metal material, in particular steel. It is also preferably provided that the locking ring is designed in one piece. In other words, the locking ring is preferably made of a single piece, so that the locking ring is made from one piece or is designed as one piece. In other words, the locking ring is preferably designed as a monolithic object, so as an object that is manufactured or constructed in one piece.

[0015] Another embodiment is characterized in that the first component is a sliding sleeve of the above-described claw brake for a motor vehicle transmission, wherein the second component is an actuating piston for the sliding sleeve or a connecting element between the sliding sleeve and the actuating piston. In particular, it is conceivable to connect the sliding sleeve to the actuating piston by means of a connecting element. This allows particularly effective and efficient locking.

[0016] It has proven to be particularly advantageous here if the actuating piston and the connecting piece are designed integrally with one another. In other words, it is preferably provided that the actuating piston and the connecting piece are designed from a single piece, so that the actuating piston and the connecting piece, for example, do not consist of parts that are designed separately and connected to one another, but rather the actuating piston and the connecting piece are designed as one piece or are designed from one piece. This allows the installation space requirement to be kept small.

[0017] In order to achieve a very efficient and effective anti-rotation in a particularly cost-effective manner, in another embodiment of the invention, it is provided that the connecting piece and the actuating piston are designed independently of one another and are connected in a rotationally fixed manner. Furthermore, the connecting piece and the actuating piston cannot move relative to one another in the axial direction of the locking ring and are therefore fixedly connected to one another, so that an axial relative movement between the connecting piece and the actuating piston is avoided or prohibited.

[0018] In another particularly advantageous embodiment of the invention, the first component has on its outer circumference a flange which in particular completely surrounds the first component in the circumferential direction, the flange extending, for example, radially outwards from the groove or from a surface area adjoining the groove and / or the flange. For example, the flange adjoins the groove in the axial direction. It is particularly conceivable that the first groove is formed in the flange. This makes it possible to produce a cost-effective, easy-to-install, and axially non-displaceable connection between the sliding sleeve and the actuating piston and the connecting piece.

[0019] For example, a magnet, in particular a permanent magnet, for detecting the axial position of the actuating piston or the connecting piece can be provided on the actuating piston or the connecting piece, wherein the magnet works reliably without rotating out of the sensor field of the sensor for detecting the magnet, so that signal acquisition is always possible.

[0020] In order to be able to prevent excessive relative rotation in a particularly cost-effective manner, in a further embodiment of the invention it is provided that the locking ring is formed from an extruded profile with a constant cross section.

[0021] The second aspect of the present invention relates to a motor vehicle preferably designed as a car, in particular a sedan, which has at least one locking structure according to the first aspect of the present invention. The advantages and advantageous designs of the first aspect of the present invention should be regarded as the advantages and advantageous designs of the second aspect of the present invention, and vice versa. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Further advantages, features and details of the present invention are obtained from the following description of preferred embodiments and in conjunction with the figures. The features and feature combinations mentioned above in the description and the features and feature combinations mentioned below in the description of the figures and / or shown separately in the figures can be used not only in the respectively indicated combination, but also in other combinations or separately without exceeding the scope of the present invention. The description of the figures is as follows:

[0023] Figure 1 A perspective schematic diagram showing a locking structure of a locking ring on a first component and a second component;

[0024] Figure 2 Another perspective schematic diagram showing a partial locking structure;

[0025] Figure 3 A perspective cross-sectional schematic diagram showing a portion of the locking structure;

[0026] Figure 4 Another perspective schematic diagram showing a partial locking structure;

[0027] Figure 5 A perspective schematic diagram showing a locking ring;

[0028] Figure 6 A perspective schematic diagram showing a partial view of the locking ring;

[0029] Figure 7 A schematic top view of the locking ring is shown;

[0030] Figure 8 A schematic cross-sectional side view of a locking ring is shown.

[0031] In the figures, identical or functionally identical components are provided with the same reference symbols. DETAILED DESCRIPTION

[0032] Figure 1A schematic perspective view shows a locking arrangement 10 for a motor vehicle, with a locking ring 12 on a first component 14 and a second component 16, which is preferably designed as a motor vehicle, in particular a passenger car. The motor vehicle is also referred to as a vehicle for short. For example, the locking ring 12 and the components 14, 16 are components of a transmission, in particular components of a transmission coupling mechanism (for example designed as a claw brake). Figure 2 and 3 It can be clearly seen that in the locking structure 10, the locking ring 12 is partially arranged in the groove 18 of the first component 14, which is also called a radial groove or is designed as a radial groove, wherein the locking ring 12 partially protrudes from the groove 18 in its radial direction and in particular in the radial direction of the locking ring 12, and thus protrudes from the component 14. This means that the first partial area of ​​the locking ring 12 is inserted into the groove 18 in the radial direction of the locking ring 12 and the components 14, 16, and is therefore arranged in the groove 18. The second partial area of ​​the locking ring 12 is arranged outside the groove 18 and in particular protrudes outward from the groove 18 in the radial direction of the locking ring 12 and thus protrudes from the component 14. Since the locking ring 12 is partially arranged in the groove 18, the axial relative movement between the locking ring 12 (also referred to as the ring for short) and the component 14 is at least limited or avoided. "Axial relative movement between the locking ring 12 and the component 14" refers to the relative movement between the ring and the component 14 in the axial direction of the locking ring 12 and the components 14, 16. The groove 18 here extends completely around the component 14 in the circumferential direction of the locking ring 12 and the components 14, 16, which extends around the axial direction of the locking ring 12 and the components 14, 16. It can be seen that the groove 18 is formed on the outer peripheral side surface 20 of the component 14 and is therefore arranged on the outer periphery of the component 14. At least one partial area of ​​the second component 16 is at least toward the axial direction of the locking ring 12 and the components 14, 16 and extending in the axial direction. Figure 1 The direction indicated by arrow 22 overlaps with the locking ring 12, especially overlaps with the second part of the locking ring 12, so that the axial relative movement between the components 14 and 16 at least in the direction indicated by arrow 22 is avoided or at least limited. This means that the mutual axial locking of the components 14 and 16 is achieved by means of the locking ring 12.

[0033] If it can be well from Figures 2 to 8 As can be seen in the figure, the two free ends 24, 26 of the locking ring 12 (which are opposite to each other in the circumferential direction of the locking ring 12, which extends around the axial direction of the locking ring 12 and the components 14, 16) are bent in the same direction, which extends in the axial direction of the locking ring 12 and in Figure 1 In the figure, the bending direction is indicated by arrow 28 and is also referred to as the bending direction, wherein the bending direction is opposite to the direction indicated by arrow 22. Figure 2 and 3As can be seen in the figure, the free end 26 is inserted into the corresponding first axial grooves 30, 32 of the first component 14 in the axial direction of the locking ring 12 and the components 14, 16. Therefore, unless otherwise specified, the axial direction mentioned below refers to the axial direction of the locking ring 12 and the components 14, 16.

[0034] It can be seen that the groove 30 is bounded on both sides by the wall portions 34, 36 of the component 14 in the circumferential direction of the locking ring 12 and the components 14, 16. The groove 32 is bounded on both sides by the wall portions 38, 40 of the component 14 in the circumferential direction of the locking ring 12. The circumferential direction of the locking ring 12 and the components 14, 16 extends around the axial direction and is, for example, Figure 2 Indicated by the double arrow 42 .

[0035] It can be seen that the free end 24 can be supported or supported in particular directly on the wall portion 36 in a first rotational direction extending in the circumferential direction of the locking ring 12. In a second rotational direction opposite to the first rotational direction and extending in the circumferential direction of the locking ring 12, the free end 26 of the locking ring 12 can be supported or supported in particular directly on the wall portion 38. As a result, a relative rotation between the locking ring 12 and the component 14 about an axis of rotation coinciding with the axial direction can be avoided both in the first rotational direction and in the second rotational direction.

[0036] In addition, for example, Figure 2 1 and 2. It can be seen that the free ends 24, 26 are inserted axially into the corresponding second axial grooves 44, 46 of the second component 16. The axial groove 44 of the component 16 is bounded on both sides by corresponding walls 48, 50 of the component 16 in the circumferential direction of the locking ring 12. The groove 46 of the component 16 is bounded on both sides by corresponding walls 52, 54 of the component 16 in the circumferential direction of the locking ring 12. Here, the free end 24 can be supported or supported on the wall 50 in particular directly in the first rotational direction, and the free end 26 can be supported or supported on the wall 52 in particular directly in the second rotational direction. In this way, a relative rotation about the rotation axis between the locking ring 12 and the component 16 can also be avoided, whether in the first rotational direction or in the second rotational direction. In addition, a relative rotation about the rotation axis between the components 14 and 16 can be avoided, whether in the first rotational direction or in the second rotational direction. Relative rotation can be avoided in particular by form fit, because the free ends 24, 26 are inserted into the grooves 30, 32, 44 and 46.

[0037] In order to be able to prevent relative rotation particularly effectively and efficiently, the free ends 24 , 26 are bent in the bending direction by at least or exactly 10°.

[0038] Can be well from Figure 4 For example, the free end 26 is inserted into the groove 32 and the groove 46 at the same time. Figure 4 In FIG. 5 , a second partial region of the locking ring 12 protruding from the groove 18 is denoted by 56 .

[0039] Figure 5 The locking ring 12 is shown in a perspective schematic diagram. Figure 5 It can be seen from FIG. 2 that the free ends 24 and 26 are bent toward a common direction (bending direction) indicated by arrow 28. Figure 5 It can be seen that the locking ring 12 is designed as a single piece. In particular, the locking ring 12 is composed of an extruded profile with a constant cross section. Figure 6 The bent free end 26 of the locking ring 12 can be seen in FIG. Figure 7 The locking ring 12 is shown in a schematic top view, wherein the end 26 and in particular its curvature can be clearly seen. Figure 7 The axial direction is shown by the double arrow 58. Figure 8 The free end 26 can be seen in FIG. Figure 8 The double arrow 60 indicates the radial direction of the locking ring 12 and the components 14 and 16 extending perpendicularly to the axial direction. Figure 8 It can be clearly seen in FIG. 1 that the locking ring 12 (in particular the entire locking ring 12 ) has an in particular constant, for example rectangular, cross section.

[0040] Reference numerals list

[0041] 10 Locking structure

[0042] 12 Locking ring

[0043] 14 First Component

[0044] 16 Second component

[0045] 18 slots

[0046] 20 Outer peripheral side surface

[0047] 22 Arrow

[0048] 24 Free end

[0049] 26 Free end

[0050] 28 Arrow

[0051] 30 slots

[0052] 32 slots

[0053] 34 Wall

[0054] 36 Wall

[0055] 38 Wall

[0056] 40 Wall

[0057] 42 Double Arrow

[0058] 44 slots

[0059] 46 slots

[0060] 48 Wall

[0061] 50 Wall

[0062] 52 Wall

[0063] 54 Wall

[0064] 56 Second local area

[0065] 58 Double Arrow

[0066] 60 Double Arrow

Claims

1. A locking structure (10) for a motor vehicle, a locking ring (12) on a first component (14) and a second component (16), wherein: The locking ring (12) is partially arranged in a groove (18) on the outer circumference of the first component (14); The locking ring (12) is bent at its two opposite free ends (24, 26) in the same direction (28) extending in the axial direction (58) of the locking ring (12); - the two free ends (24, 26) of the locking ring (12) are inserted into corresponding first axial grooves (30, 32) of the first component (14) in the axial direction (58) of the locking ring (12); and The two free ends (24, 26) of the locking ring are inserted in the axial direction (58) of the locking ring (12) into corresponding second axial recesses (44, 46) of the second component (16).

2. The locking structure (10) according to claim 1, characterized in that: The locking ring (12) is bent at its two opposite free ends (24, 26) by at least 10 degrees or exactly 10 degrees in the same direction (28) extending in the axial direction (58) of the locking ring (12).

3. The locking structure (10) according to claim 1 or 2, characterized in that: The first component (14) is a sliding sleeve of a transmission claw brake, wherein the second component (16) is an actuating piston for the sliding sleeve or a connecting piece between the sliding sleeve and the actuating piston.

4. The locking structure (10) according to claim 3, characterized in that: The actuating piston and the connecting member are integrally formed with each other.

5. The locking structure (10) according to claim 3, characterized in that: The connecting piece and the actuating piston are constructed independently of each other and are connected to each other in a rotationally fixed manner so as to be unable to move relative to each other in the axial direction (58) of the locking ring (12).

6. The locking structure (10) according to any one of the preceding claims, characterized in that: The first component (14) has a flange on its outer periphery which surrounds the first component (14) in a circumferential direction (42).

7. The locking ring (10) according to one of the preceding claims, characterized in that The locking ring (12) is formed from an extruded profile with a constant cross section.

8. A motor vehicle having at least one locking arrangement (10) according to one of the preceding claims.

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