DE102013013566A1 - Axialsicherung for axial support of a bearing outer ring and method for mounting such axial locking - Google Patents

Abstract

The present invention relates to an axial securing for the axial support of a bearing outer ring (30) of a bearing, in particular a rolling or sliding bearing, on a bearing bore (11) of a bearing housing (10)
- The bearing housing (10) has an opening arrangement (20) with at least one to the bearing bore (11) through opening (21, 22, 23), and wherein
- The outer bearing ring (30) on its lateral surface (35) has a recess arrangement (40) with at least one with the opening (21, 22, 23) aligned recess (41, 42, 45), and wherein
- The bearing housing (10) and the bearing outer ring (30) in the axial direction of the bearing by a to the recess (41, 42, 45) and to the opening (21, 22, 23) in each case at least in a securing area (55) complementary securing element (50), in particular a wire hanger, are positively and detachably connected to each other, which extends in the opening arrangement (20) and in the recess arrangement (40).

Description

The present invention relates to an axial securing for the axial support of a bearing outer ring of a bearing and a motor vehicle housing with such an axial securing device, and to a method for mounting such an axial securing device.

In various applications, for example, in the storage of transmission shafts in a transmission housing of a motor vehicle, the bearing outer rings of the bearing, in particular for intercepting axial forces and / or to avoid axial bearing migration, must be supported by means of an axial securing to the bearing bore.

According to in-house practice, this has hitherto been done by means of retaining rings, which are inserted into a groove in the position bore and abut axially on a side surface of the bearing outer ring.

An object of an embodiment of the present invention is to provide an improved axial securing device and an improved method for mounting such an axial securing device.

This object is achieved by an axial securing with the features of claim 1. In claim 10, a motor vehicle housing is provided with such an axial protection under protection, in claim 11, a method for mounting such an axial securing. Advantageous embodiments of the invention are the subject of the dependent claims.

According to one aspect of the present invention, an axial securing device for the axial support of a bearing outer ring of a bearing, in particular of a rolling or sliding bearing, on a bearing bore of a bearing housing has a bearing housing with an opening arrangement, wherein the opening arrangement has at least one opening extending through the bearing bore. The bearing outer ring has on its lateral surface a recess arrangement with at least one, aligned with the opening, recess. The bearing housing and the bearing outer ring are positively and releasably connected to one another in the axial direction of the bearing by a complementary to the recess and to the opening at least in a securing area fuse element, in particular a wire bow, which extends in the opening arrangement and in the recess arrangement.

As a result, a low-wear bearing can be achieved in one embodiment, in particular because lower tensioning forces in the bearing bore and thus higher roundness values or a lower oval deformation of the bearing outer ring and / or the bearing bore can be achieved with such an axial lock. As a result, an advantageously simplified assembly of the axial securing can be realized.

Under an axial securing is in the present case in particular a device to understand, which can limit or prevent an axial movement of the bearing outer ring to a certain extent.

A bearing outer ring is in one embodiment, the outermost element of a rolling bearing, on the inside of the rolling elements of the rolling bearing are arranged, and on the outside of the lateral surface of the bearing outer ring is arranged on the bearing bore. In another embodiment, a bearing outer ring of the outer Wälzpartner a sliding bearing.

The outer surface of the bearing outer ring and the bearing bore of the bearing housing have in one embodiment on such a matched fit that conventional and / or application-specific rolling and / or plain bearing connections can be realized.

A recess arrangement may have one, two, three or a plurality of through and / or non-through openings. The openings can all be arranged at one or at least two different axial positions of the lateral surface, in particular axially spaced from an axial edge of the lateral surface.

A bearing housing may be in one embodiment, a transmission or a motor housing, in particular a motor vehicle. In the present case, application-specific bearing connections are therefore in particular those which occur in a transmission and / or in an engine of a motor vehicle.

In the present case, two or more elements that are aligned with one another are to be understood in particular as meaning that the aligned elements are in contact with each other at least in a partial area of their respective extent corresponding axial positions and / or along a radially extending relative to the bearing are arranged straight.

In one embodiment, a securing element may be formed in one piece or from two, three or a plurality of parts. In the present case, a securing element embodied as a wire bow is to be understood as meaning, in particular, such a securing element which has at least two limbs which can be elastically prestressed to one another, so that, in particular in a prestressed state, an angle between the two limbs has a greater or a smaller value than in one unmounted condition of the wire hanger.

By "complementary" is meant in the present case, in particular, that at least one securing region and at least one opening are formed at least partially and / or in a partial region, geometrically suitable.

In the present case, a securing area is to be understood in particular as a partial area of the extent of a securing element to which the bearing bore and the bearing outer ring are positively and detachably connected to one another by means of the securing element, and in which the securing element can extend in the opening arrangement and in the recess arrangement.

A through opening is present in particular an opening which opens both to the bearing bore and to an outer side of the bearing housing and is otherwise limited by an opening wall. However, such an opening wall can open to a further opening of an opening arrangement.

According to one embodiment, the bearing housing and the bearing outer ring by means of the securing element to at least two, in particular three or a plurality of spaced apart circumferentially securing portions of the securing element in the axial direction of the bearing positively and releasably connected to each other.

By an embodiment with two spaced securing areas can be avoided in one embodiment of a deviating from a coaxial alignment tilting of the bearing outer ring in the bearing bore.

By an embodiment with three or more spaced fuse areas in one embodiment, an axial load of the fuse element can be reduced. In addition, the tilting described in the previous paragraph can be avoided even better.

According to one embodiment, the recess arrangement has at least two recesses, which are interconnected by a completely or partially circumferential groove. In one embodiment, at least one of these recesses, in particular all recesses, formed as part of this groove.

Thus, in one embodiment, an advantageously simpler, less error-prone and / or less expensive assembly can be made possible. Additionally or alternatively, the production of the recesses in the lateral surface of the bearing outer ring can be cheaper and / or faster possible.

In one embodiment, the groove may be a recess with a square, rectangular, U-shaped, V-shaped or otherwise conventionally shaped cross-sectional boundary.

According to one embodiment, the securing element, in particular in a securing area and / or in an abutment area, is elastically deformed in the axial and / or radial direction of the bearing.

By a deformation in the axial direction in the sense of this embodiment, an advantageously improved axial fixing of the bearing outer ring can be made possible on the bearing bore in one embodiment.

By a deformation in the radial direction in the sense of this embodiment, an advantageously fail-safe assembly of the securing element in the opening arrangement can be achieved, in particular, the securing elements can be supported radially inwardly under elastic bias frictionally engaged on an opening wall.

In the present case, an elastic deformation is understood in particular to mean a macroscopic elastic deformation which is at least half, in particular an entire or double, cross-sectional diameter of the securing element.

In the present case, an abutment region is understood to mean in particular a partial region of the extension of the securing element, against which it rests against an opening wall and / or on an outer side of the bearing housing and / or is supported thereon, in particular elastically deformed and / or under prestressing.

According to one embodiment, the securing element has at least two, in particular three, legs each having at least one securing region and / or an abutment region, whereby a secure connection between bearing housing, bearing outer ring and securing element can be ensured in an advantageous manner axial and / or be elastically deformed in the radial direction of the bearing. The legs can thereby be under a bias and / or enable even safer connection between the bearing housing, bearing outer ring and securing element.

According to one embodiment, the securing element has at least one handling area, which is spaced from the bearing housing. This allows an advantageously simple, fail-safe, fast and / or cost-effective installation of the fuse element be possible.

In one embodiment, a handling area is a partial area of the extension of the securing element, on which the securing element can be held, moved, mounted and / or inserted, in particular by manual and / or automated manipulation. In one embodiment, a handling area of the bearing housing or its outside at least a half, in particular a whole or double, cross-sectional diameter of the securing element spaced.

According to one embodiment, the handling area of the securing element on the bearing housing is fixed radially, axially and / or circumferentially, in particular frictionally or positively, in particular at a fixing point of the bearing housing.

As a result, in one embodiment, an advantageously low-defect assembly, in particular with a reliable success feedback at the end of the assembly process, can be realized.

According to one embodiment, the securing element extends substantially in a plane orthogonal to the longitudinal axis of the bearing. As a result, an advantageously small installation space for the securing element can be sufficient and / or simple assembly can be supported.

According to one embodiment, the bearing outer rings can be axially supported or fixed in more than one bearing bore, in particular in FIG. 23 or a plurality of bearing bores, by means of a single securing element. It can be supported axially by means of a single securing element according to an embodiment in each, in particular the two or three, bearing bores a bearing outer ring.

By axial securing of two, three or a plurality of bearings with a single securing element, in particular the assembly of the gear housing can be made faster and / or easier.

For mounting, the securing element, in particular at its handling area, is elastically deformed such that at least one first securing area can first be inserted through at least one first opening into at least one complementary recess. Subsequently, the securing element is elastically deformed so that it can then be inserted through at least one further opening in at least one further recess, in particular snap, can.

According to one aspect, a motor vehicle housing, in particular a motor vehicle transmission or motor housing, has at least one axial lock, which is designed in accordance with the previously described aspect or an embodiment.

• – die Öffnungsanordnung des Lagergehäuses und die Ausnehmungsanordnung der Mantelfläche des Lageraußenrings miteinander fluchtend angeordnet, und
• – wenigstens ein Sicherungsbereich des Sicherungselements durch die Öffnungsanordnung in die Ausnehmungsanordnung eingeführt.

According to one aspect, in a method for mounting an axial lock according to an embodiment of the aspect first described or an embodiment

• - The opening arrangement of the bearing housing and the recess arrangement of the lateral surface of the bearing outer ring aligned with each other, and
• - Introduced at least one securing portion of the securing element through the opening arrangement in the recess arrangement.

As a result, a low-wear bearing can advantageously be achieved in one embodiment, in particular because lower tensioning forces in the bearing bore and thus higher roundness values or a lower oval deformation can be achieved with such an axial lock. As a result, an advantageously simplified assembly of the axial securing can be realized.

According to one embodiment, a securing region and / or an abutment region of the securing element is elastically deformed during insertion on the opening arrangement and / or on the recess arrangement, in particular snaps into an end position. Thus, in one embodiment, an advantageously simpler, less error-prone and / or less expensive assembly can be made possible.

By snap-in is meant in the present case, in particular, a deformation by means of which a prestress introduced into the securing element by a preceding elastic preforming, in particular by reducing the elastic deformation, can again be reduced, in particular with a high gradient related to the installation path.

According to one embodiment, a handling region of the securing element is elastically deformed during insertion on the bearing housing, and in particular snaps into an end position. As a result, in one embodiment, an advantageously simple, fail-safe, fast and / or cost-effective installation of the securing element can be possible.

According to one embodiment, the securing element is inserted substantially in a plane orthogonal to the axis of the bearing, radially towards the axis of the bearing. As a result, an advantageously small installation space for the securing element can be sufficient and / or simple assembly can be supported.

In an insertion according to this embodiment, in particular at least two legs are bent elastically, in particular on the opening arrangement and in particular against snapping.

According to one embodiment, the securing element is first inserted into at least one, in particular first, opening, and then under elastic deformation of the securing element in at least one further opening. As a result, advantageously faster and / or safer assembly can be achieved in one embodiment.

The features disclosed in relation to the aspect described above and the associated embodiments of the axial securing device also apply correspondingly to the aspect of the invention described below and to the associated embodiments of the method. Conversely, the features disclosed in relation to the aspect described below and the associated embodiments of the method also apply correspondingly to the aspect of the invention described above and to the associated embodiments of the axial lock.

Further advantageous embodiments of the present invention will become apparent from the dependent claims and the following description of preferred embodiments. This shows, partially schematized:

1 an axial securing according to a design with two openings in a perspective oblique view;

2 the axial lock off 1 in a further perspective oblique view;

3 an axial securing according to an embodiment with three openings in a perspective oblique view;

4 an axial securing according to a further embodiment with three openings in a perspective oblique view;

5 an axial securing according to a further embodiment with two openings in a perspective oblique view;

6 the axial lock after 5 in a cutaway plan view

7a -B bearing outer rings according to two versions with different recess arrangements in a plan and a sectional view; and

8th an axial securing according to an embodiment with a securing element for three bearing outer rings in a perspective oblique view.

1 shows an axial lock according to a design with two openings 21 and 22 in a perspective oblique view. The trained as a gearbox housing of a motor vehicle bearing housing 10 is with a raised outside 12 formed, wherein in the bearing housing 10 a bearing bore 11 is arranged. For better visibility, the bearing outer ring 30 in the 1 - 6 not shown.

With respect to the bearing axis of the bearing outer ring, not shown 30 by means of the securing element formed as a wire bow 50 at two circumferentially spaced securing areas 55.1 and 55.2 axially supported.

The fuse element 50 has in this embodiment a first leg 51 and a second leg 52 on. On each leg 51 . 52 is a backup area 55.1 . 55.2 arranged, which through a through opening 21 respectively. 22 can be introduced or is.

The hedging areas 55 are radially inside the lateral surface 35 of the bearing outer ring 30 arranged and extend into a recess, not shown here 41 respectively. 42 (please refer 7 ) a recess arrangement 40 of the bearing outer ring 30 ,

Radially outside the opening arrangement 20 points each thigh 51 . 52 a contact area 56.1 respectively. 56.2 on which on the outside 12 of the bearing housing 10 and is based on it.

In one possible embodiment, the securing element can 50 to an abutment area and / or to an opening wall of an opening 21 . 22 the opening arrangement 20 radially and / or axially support, so that it can be elastically deformed in an assembled state. The resulting bias may result in a securement of the fuse element 50 in a desired end, in particular installation, position, contribute or ensure this determination.

The fuse element 50 has a handling area 57 on, which is radially from the outside 12 of the bearing housing 10 is spaced. This can simplify the handling of the securing element, in particular during assembly and / or disassembly of the same and / or of the bearing.

2 shows the axial lock 1 in a further perspective oblique view, from the particular arrangement and configuration of the first opening 21 and the second opening 22 is apparent.

3 shows an axial lock according to a design with three openings 21 . 22 . 23 in a perspective oblique view. Circumferentially spaced from the first opening 21 and the second opening 22 is in the bearing bore 11 a third opening 23 arranged through which in particular a security area 55 , a third thigh 53 of the fuse element 50 extends, in a third recess, not shown, in the lateral surface 35 the bearing outer ring and thus radially within the lateral surface 35 is arranged

The fuse element 50 has in this embodiment an elastically formed handling area 57 on that at a fixing point 13 of the bearing housing 10 snapped, so frictionally and / or positively and in particular elastically deformed, is fixed.

4 shows an axial securing according to another embodiment with three openings 21 . 22 . 23 in a perspective oblique view. In this embodiment, the securing element 50 two spaced handling areas 57.1 and 57.2 on.

During assembly, first the first leg 51 introduced into the first opening. Subsequently, under elastic deformation of the securing element 50 the second leg 52 in the second opening introduced, in particular so that in the assembled state still a part of an elastic deformation and thus a bias voltage remains in the fuse element.

5 shows an axial lock according to another embodiment with two openings 21 . 22 in a perspective oblique view. 6 shows the axial lock after 5 in a sectional plan view, wherein the section is shown in a direction orthogonal to the bearing axis plane in which the securing element 50 , the opening arrangement 20 and the recess arrangement, not shown 40 extends.

The fuse element 50 relies on its abutment areas 56.1a and 56.2a at a non-through opening 24 the opening arrangement 20 off, with its abutment areas 56.1b and 56.1c at an opening wall of the opening 21 and with its abutment areas 56.2b and 56.2c at an opening wall of the opening 22 ,

The 7a -B show bearing outer rings 30 according to two versions with different recess arrangements 40 ,

7a shows a bearing outer ring 30 with a circumferential recessed groove 45 trained recess arrangement 40 in a plan view and in the section AA.

7b shows a bearing outer ring 30 with two mutually circumferentially spaced recesses 41 and 42 in a plan view and in the section BB.

In the 7a -B it can be seen that all recesses 41 . 42 respectively. 45 a recess arrangement 40 at a substantially identical axial position of the bearing outer ring 30 are arranged. In a further embodiment, recesses may also be arranged at different axial positions.

8th shows an axial securing according to an embodiment with a single formed as a wire hanger securing element 50 for three bearing outer rings 30.1 . 30.2 and 30.3 in a perspective oblique view. This is in each of the three bearing bores 11 a bearing outer ring 30 by means of a single securing element 50 axially supported.

For mounting, the fuse element 50 at its handling area 57 , say so elastically deformed at its two ends, that first the securing areas 55.1 and 55.3 through the first opening 51 and the third opening 53 in the first recess 41 and the third recess 43 can be introduced. Subsequently, the second leg 52 of the securing element in such a way to the first leg 51 the securing element out elastically bent, that he then through the second opening 22 in the second recess 42 can snap.

Through an axial securing of two or, as in this embodiment, three bearings with a securing element 50 In particular, the assembly of the transmission housing can be made faster and / or easier. Although exemplary embodiments have been explained in the foregoing description, it should be understood that a variety of modifications are possible. It should also be noted that the exemplary embodiments are merely examples that are not intended to limit the scope, applications and construction in any way. Rather, the expert is given by the preceding description, a guide for the implementation of at least one exemplary embodiment, with various changes, in particular with regard to the function and arrangement of the components described, can be made without departing from the scope, as it turns out according to the claims and these equivalent combinations of features. LIST OF REFERENCE NUMBERS 10 bearing housing 11 bearing bore 12 Outside of the bearing housing 13 determination Agent 20 opening arrangement 21 continuous / first opening 22 Second opening 23 Third opening 24 Not through opening 30 Bearing outer ring 35 Lateral surface of the bearing outer ring 40 recess arrangement 41 First recess 42 Second recess 43 Third recess 45 Circumferential recess groove 50 fuse element 51 First leg 52 Second thigh 53 Third thigh 55 security area 56 Anliegebereich 57 handling area

Claims (15)

Axial securing device for the axial support of a bearing outer ring ( 30 ) of a bearing, in particular a rolling or sliding bearing, on a bearing bore ( 11 ) of a bearing housing ( 10 ), wherein - the bearing housing ( 10 ) an opening arrangement ( 20 ) with at least one to the bearing bore ( 11 ) through opening ( 21 . 22 . 23 ), and wherein - the bearing outer ring ( 30 ) on its lateral surface ( 35 ) a recess arrangement ( 40 ) with at least one with the opening ( 21 . 22 . 23 ) aligned recess ( 41 . 42 . 45 ), and wherein - the bearing housing ( 10 ) and the bearing outer ring ( 30 ) in the axial direction of the bearing by a to the recess ( 41 . 42 . 45 ) and to the opening ( 21 . 22 . 23 ) at least in one security area ( 55 ) complementary security element ( 50 ), in particular a wire hanger, are connected to one another in a form-locking and releasable manner, which are located in the opening arrangement ( 20 ) and in the recess arrangement ( 40 ). Axial securing device according to claim 1, wherein the bearing housing ( 10 ) and the bearing outer ring ( 30 ) by means of the securing element ( 50 ) on at least two mutually circumferentially spaced securing areas ( 55 ) of the security element ( 50 ) are positively and detachably connected to each other in the axial direction of the bearing. Axial securing device according to one of the preceding claims, wherein the recess arrangement ( 40 ) at least two recesses ( 41 . 42 ), which mutually by an at least partially encircling groove ( 45 ) are connected. Axial securing device according to one of the preceding claims, wherein the securing element ( 50 ), especially in a security area ( 55 ) and / or in an abutment area ( 56 ), is elastically deformed in the axial and / or radial direction of the bearing. Axial securing device according to one of the preceding claims, wherein the securing element ( 50 ) at least two legs ( 51 . 52 . 53 ) each having at least one security area ( 55 ) and / or an abutment area ( 56 ) having. Axial securing device according to the preceding claim, wherein the legs ( 51 . 52 . 53 ) are elastically deformed to each other in the axial and / or radial direction of the bearing. Axial securing device according to one of the preceding claims, wherein the securing element ( 50 ) at least one handling area ( 57 ), which of the bearing housing ( 10 ) is spaced. Axial securing according to the preceding claim, wherein the handling area ( 57 ) of the security element ( 50 ) on the bearing housing ( 10 ) is fixed radially, axially and / or circumferentially, in particular frictionally or positively. Axial securing device according to one of the preceding claims, wherein at least one further bearing outer ring ( 30 ) by means of the securing element ( 50 ) is axially supported. Motor vehicle housing, in particular motor vehicle transmission or motor housing, with at least one axial lock according to one of the preceding claims. Method for mounting an axial lock according to one of the preceding claims, wherein - the opening arrangement ( 20 ) of the bearing housing ( 10 ) and the recess arrangement ( 40 ) of the lateral surface ( 35 ) of the bearing outer ring ( 30 ) are aligned with each other, and wherein - at least one security area ( 55 ) of the security element ( 50 ) through the opening arrangement ( 20 ) into the recess arrangement ( 40 ) is introduced. Method according to the preceding claim, wherein a security area ( 55 ) and / or an abutment area ( 56 ) of the security element ( 50 ) when inserted at the opening arrangement ( 20 ) and / or at the recess arrangement ( 40 ) is elastically deformed, in particular snaps to an end position. Method according to one of the preceding claims, wherein a handling area ( 57 ) of the security element ( 50 ) when inserted on the bearing housing ( 10 ) is elastically deformed, in particular snaps to an end position. Method according to one of the preceding claims, wherein the securing element ( 50 ) is introduced substantially in a direction orthogonal to the axis of the bearing plane radially towards the axis of the bearing. Method according to one of the preceding claims, wherein the securing element ( 50 ) first into at least a first opening ( 21 ), and then under elastic deformation of the securing element ( 50 ) into at least one further opening ( 22 . 23 ) is introduced.

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