DE102013220460A1 - Bearing arrangement for use in transmission of vehicle, has first portion described by diameter in proximity of stopper, where diameter of first portion is greater than diameter of second portion and equal to diameter of third portion - Google Patents

Abstract

The arrangement (1) has a rolling bearing (3) retained in a bearing retainer (8). A first inner cylindrical portion (14) of the retainer is described by a diameter. A stopper (15) protrudes from a second portion (16) and rests against a front end of an outer ring (13) of the rolling bearing. The second portion comprises another stopper (17) and is described by a diameter in proximity of the latter stopper. The diameter of the second portion is greater than the diameter of the first portion and equal to a diameter of a third inner cylindrical portion (16a). An independent claim is also included for a method for manufacturing a bearing arrangement.

Description

Field of the invention

• – die Lageraufnahme einen innenzylindrischen und durch einen ersten Durchmesser beschriebenen ersten Abschnitt aufweist, in welchem ein Außenring des Wälzlagers sitzt,
• – sich dem ersten Abschnitt axial ein zweiter Abschnitt anschließt, wobei aus dem zweiten Abschnitt aus dem radial wenigstens ein Anschlag aus plastisch verdrängtem Material hervorsteht, welcher axial an einer Stirnseite des Außenrings anliegt,

sich dem zweiten Abschnitt axial ein innenzylindrischer dritter Abschnitt anschließt, wobei ein den innenzylindrischen dritten Abschnitt beschreibender Durchmesser größer ist als die durch den ersten Durchmesser beschriebenen Innenabmessungen des ersten Abschnitts.The invention relates to a bearing arrangement with at least one plate-shaped component and with at least one rolling bearing, which is received in a bearing receptacle, wherein

• The bearing receptacle has an inner cylindrical first section, described by a first diameter, in which an outer ring of the rolling bearing is seated,
• A second section adjoins the first section axially, with at least one stop of plastically displaced material protruding from the second section radially outwardly, which axially bears against an end face of the outer ring,

an inner cylindrical third section adjoins the second section axially, wherein a diameter describing the inner cylindrical third section is larger than the inner dimensions of the first section described by the first diameter.

Background of the invention

DE 100 01 575 C2 shows a bearing assembly with a plate-shaped member in which two bearings are housed in bearing mounts. The bearing receivers are formed inside cylindrical and einmaterialig with the plate-shaped component. The bearing receptacle terminates at one end with a radially inwardly facing stop on which the outer ring of the seated in the bearing seat bearing abuts axially. A first portion of the respective bearing receptacle is an inner cylindrical seat for an outer ring of a rolling bearing. The seat adjoins the stop axially and its diameter is adapted to a fit or interference fit of the outer ring in the seat. An adjacent second section of the bearing receptacle is made of plastically deformed material, which circumferentially forms a bead around the circumference. The bead is axially tight against a facing away from the stop end face of the outer ring. The outer ring and thus also the rolling bearing are secured by the stop and by the bead in both axial directions in the bearing receptacle.

The second section is followed axially by a third section of the bearing seat, from which a portion of the material forming the bead is plastically displaced. The third section is formed inside-cylindrical and has a second diameter. The second diameter is larger than the first diameter of the first section. The third section is followed by a fourth inner cylindrical section, from which a further portion of the bead-forming material is displaced. A third diameter of the fourth portion is larger than the second diameter, by which the third portion is described. The fourth section ends axially on the face side of the plate-shaped component on a surface extending in any radial direction and continues radially in a surface of the component.

From the foregoing, it can be concluded that the inner cylindrical contours of the third portion and the fourth portion are due to displacement and compression of material from the plate-shaped member. That is also based on the in DE 100 01 575 C2 described method for producing the bearing assembly traceable. Thereafter, the plate-shaped component is first generated with the bearing receivers by forming. After its completion, the component is present in a form in which the respective bearing receptacles is formed throughout to the stop inside cylindrically shaped and by a first diameter. The first diameter is adapted to the later fit of the outer ring in the bearing seat. In next steps of the method, two rolling bearings are introduced or pressed with the outer ring in each case in one of the bearing receptacles until they rest against the respective axial stop of the bearing support. In a next method step, the fourth section is produced by forming with a stamp, in which the first section is enlarged to a third diameter to the fourth section. In this case, a portion of the material of the plate-shaped component is displaced in the direction of the outer ring and compacts a different proportion. In a further method step, the third section is produced by displacing the portion of the material displaced in the direction of the outer ring partly together with further material of the component in the direction of the outer ring, thereby producing the bead.

DE 102 25 747 A1 describes a tensioning or deflection roller with a rolling bearing. The rolling bearing is seated with an outer ring in a trained as a race of the roller bearing mount. The race is manufactured by means of drawing technology or by rolling. The outer ring is seated on an inner cylindrical first section with a radial interference fit in the raceway. The axial securing is formed on the right by a solid first shoulder which is formed on the race as a step. The step is provided at the radially narrowest point with a diameter which is smaller than the diameter of the inner cylindrical first section. In a first case, a second section adjoins the first section on the left, the step inside of which has a diameter which is smaller than the bearing seat for the outer ring formed by the first section. The second section is through a second shoulder formed inside by a diameter which is larger than the diameter of the shoulder of the solid shoulder and which is smaller than the diameter of the first section. The outer ring is pressed axially during its assembly through the shoulder of the second section. The second shoulder springs radially elastic. When the outer ring is seated in the second section, the second shoulder is again elastically compressed and forms an axial stop for the outer ring. Such a second shoulder forms an undercut with view of the diameter of the first section with the bearing seat. The radial dimensions of the undercut must on the one hand be low enough to allow the compression of the bearing outer ring without damage and on the other hand be large enough to ensure the axial stop. The demands on the dimensional accuracy of the race and the outer ring therefore very high. The permissible tolerances must be very fine and the production costs are accordingly relatively high. In a further case, the first section on the left is followed by a second section, which has the same inner diameter as the bearing seat on the first section. From the second section are formed from caulking axial stops. The second section is followed on the left by a third section, through which the outer ring is inserted into the raceway. The diameter of the third section is larger inside than that on the bearing seat and accordingly also larger than that of the second section, so that a step is formed between these two sections.

Description of the invention

The object of the invention is to provide a bearing assembly which can be produced easily and inexpensively.

This object is achieved by the subject matter of claim 1.

The invention bearing arrangement with a plate-shaped component and with at least one rolling bearing, which is accommodated in a bearing receptacle of the component. Bearing plate and bearing seat are either separate components or einmaterialig formed with each other. The separate components are positively and / or positively and / or cohesively attached to each other. In addition, the plate-shaped member may be composed of a plurality of plate-shaped elements. The bearing plate formed from the plate-shaped component and the receptacle is preferably a structure formed by stamping, drawing and embossing of a material coherently formed. In addition, the invention also provides a bearing assembly which has further bearing receptacles with rolling bearings. In addition, the plate-shaped component is provided with fastening elements, which can be simple through-holes for fastening screws or external or internal thread.

The bearing receptacle is preferably a hollow cylindrical component but may also have any other contours on the outside. Inside, the bearing receptacle on a innenzylindrischen and described by a first diameter first portion. The first diameter is adapted to a fit or interference fit of the outer ring of the rolling bearing in the first section. At least one axial stop is formed at the end of the bearing receptacle or an axial stop is inserted into the receptacle. The outer ring of the rolling bearing is axially supported with one side, preferably with one end face, and held in an axial direction. This at least one stop can be formed from the material of the bearing receptacle and formed einmaterialig with the bearing receptacle. He is z. B. formed by individual radially inwardly directed in the direction of the axis of rotation of the bearing stop elements or by a peripheral board.

At a side facing away from the stop end of the first portion, the first portion axially close to a second portion and further away from the stop, a third portion. The radial inner dimensions of the third section are greater than the radial inner dimensions of the first section described by the first diameter.

The second section can not be distinguished from the shape of the third section in its original form, that is to say before the assembly of the rolling bearing into the outer ring. Both sections are formed inside cylindrical and have a common diameter. The diameter of the third section is larger than the diameter by which the inside cylindrical first section is described. After assembly of the rolling bearing, the second section has at least two stops projecting radially in the direction of the axis of rotation of the roller bearing or a stop formed as a bead. The second section remains in the vicinity of the stops circumferentially between the attacks inside cylindrical with the diameter of the second section and thus with the diameter of the third section. Alternatively, the second portion is provided with a circumferentially encircling bead which protrudes from the material of the second portion and which is also formed of plastically displaced from the third portion of material.

The third section joins from the attacks axially with initially internal cylindrical shape to the second section and goes to one End face of the plate-shaped member, possibly on a surface described by a radius or bevel, in the end face of the component over. The stops are partially formed by plastically displaced from the surface of the inner cylindrical third portion into the second portion of material of the third portion, which interrupt the otherwise inner cylindrical surface of the second portion and are radially inwardly beyond this.

The invention also provides a bearing assembly, in which the rolling bearing mounted by means of the bearing receptacle to the bearing plate and the bearing plate is flanged to the housing. The bearing receiver is inserted in the hole of the housing, which is preferably formed inside cylindrical. Between the bearing receptacle and the hole an interference fit, a transition fit or a clearance fit is formed. An embodiment of the invention provides that between the bearing holder and the hole an annular gap is formed. The advantage of such an arrangement is that the rolling bearing can be easily mounted by flanging on the housing in a vehicle transmission. In addition, the roller bearing is decoupled by such a suspension as far as possible from the housing so that vibrations introduced via a shaft into the rolling bearing are not transmitted directly to the housing via the bearing seat.

• – Herstellen der Lagerplatte mit der Lageraufnahme durch Umformen einer Blechplatine, wobei mit Umformen sowohl Stanzen, als auch Ziehen und Prägen gemeint ist. Das plattenförmige Bauteil und die Lageraufnahme sind dementsprechend einteilig-einmaterialig ausgebildet. Die Lageraufnahme wird direkt durch Abstrecken von Material aus dem plattenförmigen Bauteil hergestellt. Dabei wird zunächst ein axial abstehender napfartiger Ansatz für die Lageraufnahme mit Boden gezogen. Der Boden wird zur Herstellung eines Anschlags gelocht, so dass der Anschlag in Form eines radial umlaufenden und auf die Symmetrieachse der Lageraufnahme gerichteten Bordes vorliegt. Der erste, zweite und dritte Abschnitt werden gezogen und auf die vorgegebenen Endmaße kalibriert. An dem fertigen Ziehteil sind zunächst der dritte und der zweite Abschnitt optisch nicht zu unterscheiden, da beide innenzylindrisch sind und den gleichen Durchmesser aufweisen.
• – Einführen des Wälzlagers mit dem Außenring in den ersten Abschnitt bis der Außenring axial an dem ersten Anschlag anliegt. Der Begriff einführen schließt auch Einpressen mit ein.
• – plastisches Verdrängen von Material aus der Oberfläche des dritten Abschnitts in den zweiten Abschnitt hinein gegen eine Stirnseite des Außenrings des Wälzlagers zur Herstellung der danach aus der Oberfläche des zweiten Abschnitts hervorstehenden umfangsseitig zueinander benachbarten zweiten Anschläge durch Prägen.

The invention provides a method for producing a bearing arrangement according to claim 1, which is characterized by the following steps

• - Manufacture of the bearing plate with the bearing seat by forming a sheet metal blank, which is meant by forming both punching, as well as drawing and stamping. The plate-shaped component and the bearing receptacle are accordingly formed in one piece-one material. The bearing receiver is produced directly by stripping material from the plate-shaped component. In this case, an axially protruding cup-like approach for the bearing seat is first pulled to the ground. The bottom is perforated to make a stop, so that the stop is in the form of a radially encircling and directed to the symmetry axis of the bearing support Bordes. The first, second and third sections are drawn and calibrated to the specified final dimensions. At the finished drawn part, the third and the second section are initially optically indistinguishable, since both are inside cylindrical and have the same diameter.
• - Introducing the rolling bearing with the outer ring in the first section until the outer ring abuts axially against the first stop. Introducing the term also includes press-fitting.
• - Plastic displacement of material from the surface of the third portion in the second portion into against an end face of the outer ring of the rolling bearing for the production of thereafter protruding from the surface of the second portion circumferentially adjacent to each other second stops by embossing.

Alternatively, the invention provides a method for producing a bearing arrangement in which the plate-shaped component and the bearing receptacle are initially manufactured separately from each other. It is again possible to distinguish between two methods. It is either first the bearing plate made by connecting the bearing holder with the plate-shaped member and then the bearing assembly by inserting the roller bearing in the bearing receptacle or the rolling bearing is first inserted into the bearing receptacle and then the plate-shaped member connected to the bearing receptacle.

Description of the drawings

1 shows a section of an embodiment of a bearing assembly 1 in a longitudinal section along the axis of rotation 2 a rolling bearing 3 , The bearing arrangement 1 is made of a plate-shaped component 7 , which serves as a bearing plate 4 is executed, and from the rolling bearing 3 educated. The bearing plate 4 sits in a housing 5 and is to be attached to this by means not shown screws through the flange holes 6 to grab. The bearing plate 4 lies with sections of a plate-shaped component 7 plan on the housing 5 at. A camp recording 8th dives axially into a hole 9 in the case 5 one. The camp recording 8th touches the inner wall of the hole 9 not, but this can also touch alternatively. In the bearing assembly as shown by 1 is a gap SM between the bearing receiver 8th and the housing 5 educated. With the bearing arrangement 1 is a wave 6 in the case 5 stored in an inner ring 10 of the rolling bearing 3 sitting. The rolling bearing 3 is from the inner ring 10 , made of balls 11 , from seals 12 and an outer ring 13 educated. The outer ring 13 sits in the warehouse 8th ,

2 shows an overall view of a bearing plate 4 ,

3 shows a longitudinal section through the bearing plate 4 with bearing support 8th along the axis of rotation 2 ,

4 shows the detail Z 3 increased. The bearing plate 4 is one-piece-one-material from the plate-shaped component 7 which has three flanged holes 6 has, and the camp admission 8th educated.

The camp recording 8th is a hollow cylindrical member which axially from the plate-shaped member 7 leads away, and has one formed inside cylindrical and therefore described by a first diameter D1 first section 14 on. The axial width of the section corresponds to the dimension A. End of the bearing seat 8th is a stop 15 formed, the bordartig around the axis of rotation 2 circumferentially radially on the axis of rotation 2 is directed. In 1 is shown as the outer ring 13 in the first section 14 sits and axially against the stop 15 is applied.

The first section 14 closes axially at one of the stop 15 opposite end of a innenzylindrischer second section 16 at, which is described by the diameter D2. D2 is larger than D1. That goes both from the representations after the 4a . 4b and 4c as well as from the 5 and 6 out.

4a shows on the basis of a greatly enlarged and not to scale shown detail Y as in a method step of a method according to the invention, the three sections 14 . 16 and 16a by means of a tool in the bearing receptacle 8th be formed.

4 and 4a - The second section 16 closes axially a rotationally symmetric third section 16a whose radial dimensions are greater than the diameter D1. The third section 15a is after assembly of the bearing assembly, for example, innenkonisch or trumpet-shaped, but preferably also formed innenzylindrisch. The latter inner cylindrical version of the third section 16a is preferably also described by the diameter D2, which is as large as the diameter D2 of the second section 16 and larger than the diameter D1 of the first section 14 , The third section 16a ends at an end face 18 the plate-shaped component 7 , Because the second section 16 and the third section 16a inside cylindrical and are described by the same diameter D2, they are visually indistinguishable from each other before mounting the outer ring in the bearing receptacle and extend in total in an area described by the dimension B.

The 4b and 5 show detail X 1 greatly enlarged and not to scale. 6 shows a section along the line VI-VI 5 , With an embodiment of the invention it is provided that the outer ring 13 of the rolling bearing 3 by means of at least one radially out of the second section 16 outstanding attack 17 by an imprint 20 is formed, axially in the bearing receptacle 8th is secured. If the outer ring 13 of the rolling bearing 3 in the section 16 are sitting at second section 16 at least two circumferentially about the axis of rotation 2 of the rolling bearing 3 spaced stops 17 trained, of which in 1 and in 4b only one is shown, the front side of the outer ring 13 abut and thereby radially in the direction of the axis of rotation 2 protrude. The attacks 17 are made of material that is plastically shaped by embossing from the third section 16a was displaced. The volume of imprints 20 or the attacks 17 corresponds to the void volume of furrows 21 caused by the displacement of material. The radial dimensions of the third section 16a at the furrows correspond to the dimension T ( 5 and 6 ) and are larger than the diameters D2 and D1 of the second section 16 and the first section 14 , Otherwise, the radial dimensions of the third section 16a through the diameter D2 of the second section 16 described the inner cylindrical portion of the second section 16 in the circumferential direction between the stops 17 describes.

4c shows on the basis of a representation of the detail Y another embodiment of the invention, according to which the outer ring 13 with only one radially out of the second section 16 protruding stop 17 axially in the bearing receiver 8th is secured. The stop 17 is characterized by a circumferential bead-shaped embossing 22 educated. The stop 17 is in this case by plastically from the third section 16a displaced material formed, reducing the diameter of the third section 16a of D2 before embossing is increased to a diameter D3 after embossing. reference numeral 1 bearing arrangement 2 axis of rotation 3 roller bearing 4 bearing plate 5 casing 6 flange holes 7 plate-shaped component 8th bearing seat 9 hole 10 inner ring 11 Bullet 12 poetry 13 outer ring 14 first section 15 attack 16 second part 16a third section 17 attack 18 face 19 Tool 20 embossing 21 furrow 22 embossing

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 10001575 'C2 [0002]
• DE 10001575 C2 [0004]
• DE 10225747 A1 [0005]

Claims (10)

Bearing arrangement ( 1 ) with at least one plate-shaped component ( 7 ) and at least one rolling bearing ( 3 ), which is stored in a warehouse ( 8th ), wherein - the bearing receptacle ( 8th ) an inner cylindrical and by a first diameter (D1) described first section ( 14 ), in which an outer ring ( 13 ) of the rolling bearing ( 3 ), - the first section ( 14 ) axially a second section ( 16 ), whereas from the second section ( 16 ) from the radially at least one stop ( 15 ) protrudes from plastically displaced material, which axially on an end face of the outer ring ( 18 ), - the second section ( 16 ) axially an inner cylindrical third section ( 16a ), wherein a diameter describing the inner cylindrical third section is larger than the inner dimensions of the first section (1) described by the first diameter (D1) ( 14 ), characterized in that the second section ( 16 ) at least one stop ( 17 ), the stop ( 17 ) plastically from the inside cylindrical third section ( 16a ) displaced material is formed axially against the rolling bearing ( 3 ) and that the second section ( 16 ) in the vicinity of the attacks ( 17 ) is described internally by a second diameter (D2), wherein the diameter (D2) is greater than the diameter (D1) and equal to a diameter of the third portion. Bearing arrangement according to claim 1, characterized in that the second section ( 16 ) at least two in the circumferential direction about a rotation axis ( 2 ) of the rolling bearing ( 3 ) spaced the attacks ( 17 ) having. Bearing arrangement according to claim 1, characterized in that the third section ( 168 ) immediately following axially to the stops ( 17 ) is provided with groove-like recesses, whereby the radial dimensions (T) of the third section ( 16a ) in the recesses are larger than the second diameter (D2) and in other inner cylindrical areas of the third section ( 16a ) correspond to the second diameter (D2). Bearing arrangement according to claim 1, characterized in that the radial dimensions of the third section ( 16a ) immediately following axially to the stop ( 17 ) are described by a third diameter (D3) which is larger than the second diameter (D2). Bearing arrangement according to claim 1, characterized in that the third section ( 15a ) axially on an end face ( 18 ) of the plate-shaped component ( 7 ), wherein the radial dimensions of the third section ( 16a ) to the face ( 18 ) and are larger than the second diameter (D2). Bearing arrangement according to claim 1, characterized in that the bearing receptacle ( 8th ) inside cylindrical and einmaterialig with the plate-shaped component ( 7 ) is trained. Bearing assembly according to claim 1 according to the preamble of claim 1 with a housing ( 5 ) and with a hole ( 9 ) in the housing ( 5 ), bearing stock ( 8th ) in the hole ( 9 ), characterized in that the bearing assembly ( 1 ) on the plate-shaped component ( 7 ) and with the at least one in the bearing receptacle ( 8th ) received rolling bearings ( 3 ) in the hole ( 9 ), wherein radially and peripherally between the bearing receptacle ( 8th ) and the hole ( 9 ) a transition fit or an annular gap (SM) is formed. Method for producing a bearing arrangement according to Claim 1 or 7, characterized by the following steps: Producing the bearing plate with the bearing seat by forming a sheet metal blank, wherein in the bearing receptacle of the first portion and the third portion and a first stop are introduced and the immediately adjacent to the first portion adjacent second portion is prepared and wherein the first stop on one of the third section opposite side of the first section is formed, Inserting the rolling bearing with the outer ring into the first section until the outer ring abuts axially against the first stop, - Plastic displacement of material from the surface of the third portion against an end face of the outer ring of the rolling bearing for producing the second portion with at least one second stop. A method for producing a bearing assembly according to claim 1 or 7, characterized by the following steps: - Manufacture of the bearing plate, - Manufacture of the bearing seat by forming, wherein in the bearing receptacle, the first portion, immediately adjacent to the first portion of the second portion and the third portion and a first stop are introduced, and wherein the first stop is formed on a side remote from the third portion of the first portion, - inserting and fixing the bearing receptacle in the bearing plate, - inserting the rolling bearing with the outer ring in the first section to the outer ring abuts axially against the stop, - Plastic displacement of material at least two points from the surface of the third portion in the second portion into against an end face of the outer ring of the rolling bearing for producing in the second portion circumferentially adjacent to each other at least two second stops. Method for producing a bearing arrangement according to Claim 1, 4 or 7, characterized by the following steps: - making the bearing plate, - Manufacture of the bearing seat by forming, wherein in the bearing receiving the first portion, the second portion and and immediately adjacent to the first portion of the third portion and a first stop are introduced, and wherein the first stop on a side facing away from the third portion of the first section is formed, Inserting the rolling bearing with the outer ring into the first section until the outer ring abuts axially against the stop, Plastic displacement of material from the surface of the third section into the second section against an end face of the outer ring of the rolling bearing for the completion of the second section with a bead-shaped circumferential protruding from the second section second stop, - Inserting and fixing the bearing holder in the bearing plate.

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