DE2724849A1 - MULTI-ROW BEARING - Google Patents

Description

! a

iHoesch Werke Aktiengesellschaft, Eberhardstrasse 12, 46oo Dortmund

! Multi-row rolling bearing

| The invention relates to a multi-row rolling bearing in which

! Raceways for the rolling elements on wire bodies - accordingly

'' the geometric shape of the associated rolling element is formed -

are provided with an outer and an inner bearing ring,

wherein the outer or the inner of the two bearing rings is divided, with spacers in the division plane and with a Radial rolling element row, the radial bearing clearance of which is adjustable. ;

In the case of rolling bearings that have to transmit high radial forces, a pure radial rolling element row is usually provided. the The axis of rotation of this radial rolling element runs parallel to the axis of rotation of the roller bearing. In addition to this series of radial rolling elements can have one or more rolling tracks to accommodate axicie :. and lifting forces are provided. At precision bearings. '. the play of the individual rows of rolling elements is aem Deployment idll of the camp discontinued.

Various ways of setting the career game are known. In easily be sorted rolling elements according to the measured production tolerance used. In this way, an incorrect tolerance can be compensated for. For precision bearings, the required tolerance is provided by spacer shims

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'set in the split bearing ring. This measure brings the

ι Advantage that the bearing play again after a certain period of time can be adjusted, and that different |

¹ Manufacturing tolerances, distributed over the circumference, balanced j

! i

■ can be. This tolerance setting is used both for i

■ ι

normal roller bearings as well as wire bearings. the

Adjustment of the clearance of a pure radial raceway after this j

j procedure is difficult because j

'Place spacers only an axial tolerance adjustment ι

! is achieved. Only with the help of the axial displacement of a j

j cone, a radial bearing clearance adjustment can be achieved.

The formation of such a camp shows, for example

i Swiss patent specification 555 o12. Here is between that

J upper part and the lower part of a split bearing ring
ι additional conical ring is provided, which via spacer shims the
ι career clearance of the radial raceway determined. This known embodiment is considered to be a rather complex construction
evaluate, which requires a high manufacturing effort. aside from that

j is the stiffness of the three individual ring parts,
an upper part, a lower part and an intermediate part

formed bearing ring diminished. j

The invention has therefore set itself the task of providing a solution j

I for a wire race bearing whose radial track can be adjusted in the simplest possible way, with the radial
Bearing play is adjustable with the help of a cone, the conical

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However, there is no ring between the upper part and the lower part of the split bearing ring.

The task is solved according to the invention by one

of the two wire bodies of the radial raceway has at least one inclined surface on the side facing away from the raceway

In further training of the subject matter of the invention, the Inclined surface of the wire body has a constant inclination and cooperates with a surface of the same inclination of the bearing ring.

According to an additional feature, this is an inclined surface then divided into two inclined surfaces of opposite inclination with a central angle within the limits of 45 ° to 15 °, if a more unfavorable load-bearing behavior is to be avoided, aas can be achieved by pivoting the center lines of the wire bodies una the rolling element can result in relation to one another. Such a tolerance setting of the radial raceway is disclosed the CH-PS 555 o12 and it is particularly noticeable in highly loaded bearings.

By designing the wire body with two inclined surfaces opposite inclination, a radial infeed of the wire body is made possible, with this only by half Path is shifted axially when the inclinations of the two inclined surfaces are the same.

M93T570

The advantages achieved with the invention are quite general

I see that the construction costs and the manufacturing costs

j of a bearing according to the proposed solution are less than with a corresponding state-of-the-art warehouse. That

j is essentially achieved by having the same function

j una the same load-bearing capacity of such a bearing, the divided ■ ring no longer has to be divided into three, but only into two partial rings. This results in a higher rigidity of the split bearing ring with the same structural volume. This has a positive effect on the bearing accuracy and the overall rigidity of the bearing. In the case of light metal bearings with wire bodies made of steel, there is a further known advantage that material of the same type no longer rubs against one another on the inclined surfaces, thus avoiding "seizing" of these parts .

Embodiments of the invention are shown schematically in aen drawings and are described below.

i
Show it

j Fig. 1 a multi-row rolling bearing from a

one-piece outer ring and a split inner ring with wire bodies as Raceways, with a wire body of the radial raceway on the one facing away from the raceway Side has an inclined surface as a partial longitudinal section

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Fig. 2 shows a multi-row rolling bearing according to FIG. 1, in which the inclined surface of the wire body is divided into two inclined surfaces
in partial longitudinal section

Fig. 3 shows a multi-row rolling bearing in which the

the wire body having inclined surfaces has two raceways, one for the row of radial rollers and one for the row of axial rollers
as a partial longitudinal section

In the illustrations, for example, rollers are used as rolling elements used. However, the invention is not limited to the use of rollers as rolling elements.

A multi-row rolling bearing according to FIG. 1 consists essentially of an undivided outer bearing ring 1o and a divided one Inner bearing ring 11. Between these bearing rings 1o, 11 are a row of supporting rollers 12, a row of holding rollers 13 and one Radial row of rollers 14 arranged. The rollers 12, 13, 14 roll on wire bodies 15. Liner of the two wire bodies

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the radial raceway points to that facing away from raceway 151
Side an inclined surface 152. This inclined surface 152 supports
on an upper part 111 with an inclined counter surface 112
of the split inner bearing ring 11. Spacer shims 16 are provided between the upper part 111 Qes divided inner bearing ring 11 and a lower part 113 of the divided inner bearing ring 11. Long spacer enclosures 161
Dis under the wire body 15 and the inclined surface 152.

Short spacer shims 162 are only between the upper part 111 and the lower part 113 of a split inner bearing ring 11. The thickness of the two spacer shims 161, 162 determines the play
the conveyor roller row 12 and the holding roller row 13. With eggs

long spacer sheet 161 defines the height of the wire body 15j with the inclined surface 152. J the inclined surfaces 112, 152 of the upper part 111 aes divided;

inner bearing ring 11 una of the associated wire body 15 I against each other, so that the diameter of this wire body 15

i is changed. With the change in the inclination of the inclined surface j 152, the desired fineness of the radial bearing clearance adjustment can be determined. ^;

multi-row rolling bearing according to Fig. 2 has the same Laufbahnanoranung like the multi-row roller bearing according to FIG. 1. In this roller bearing, the inclined surface 152 of the wire body 15 is raised -ilt in two inclined surfaces 1521 and 1522 with opposite

i - 7 -

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Tilt. They each work with an inclined counter surface 112 des
Upper part 111 of the split inner bearing ring 11 and one
Center ring 114 together. The radial clearance adjustment will

in this embodiment by exchanging spacer shims 17

[ achieved. The axial bearing clearance adjustment must be outside the area of the inclined surfaces 1521, 1522 with opposite
j inclination, which results in a tripartite division of the
j divided inner bearing ring 11 results. j

In a multi-row roller bearing according to FIG. 3, the wire is; body 15 with inclined surface 152 and two raceways 153, 154 \

provided on which the holding rollers 13 and the radial roller row j 14 roll. This multi-row rolling bearing according to FIG. 3
comes with a spacer 17 to adjust for the axial
and radial bearing play. This embodiment reveals the advantages and the technical advancement over one
State-of-the-art bearings.

i

It is left to the application whether the split bearing j ring 11 as an inner bearing ring or as an outer bearing ring! is set. I.

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Claims (1)

hoesch Werke Aktiengesellschaft, Eberhardstrasse 12, 46oo Dortmund I ; Claims ! .Multi-row rolling bearing with raceways for the rolling V ^ / body on wire bodies - corresponding to the geometric Form of the associated rolling element formed - provided ': sina, with an outer and an inner bearing ring, wherein; the outer or the inner of the two bearing rings divided is, with spacers in the division level and with a j Raaial rolling element row, the radial bearing clearance of which is adjustable is, characterized in that one of the two wire bodies (15) of the radial raceway has at least one inclined surface (152) on the side facing away from the raceway (151). ι 2. Multi-row rolling bearing according to claim 1, characterized in that that the inclined surface (152) of the wire body (15) has a constant inclination and with an inclined counter surface (112) cooperates with the same inclination of the bearing ring (11). 3. Multi-row rolling bearing according to claim 1, characterized in that The one inclined surface (152) of the wire body (15) is divided into two inclined surfaces (1521, 1522) opposite one another: Inclination with a central angle within the limits of 45 ° to 15 °. 809849/0382