DE102007030982A1 - Machine element i.e. roller bearing, axial safety and/or axial tolerance compensation arrangement, has machine element arranged and/or positioned on or at shaft such that side walls form mounting space for safety element - Google Patents

Abstract

The arrangement (1) has a shaft (3) comprising an opening (4) with a side wall (4a) transversely running in a predetermined angle (alpha1). A safety element is inserted or guided into the opening for securing a machine element (2) arranged on or at a shaft. The machine element comprises a side wall (2b) transversely running in another predetermined angle (alpha2). The element is arranged and/or positioned on or at the shaft in such a manner that the side walls form a mounting space (6) for the safety element.

Description

The The invention relates to an arrangement for axial securing and / or for axial tolerance compensation of a machine element, in particular a bearing, on or on a shaft, wherein the shaft is a recess with a sloping at a certain first angle has first side wall and for securing the on or on the shaft arranged machine element at least one securing element - at least partially - can be inserted and / or inserted into the recess.

In the prior art are different arrangements for axial securing and / or for the axial tolerance compensation of machine elements, vzw. of bearings, namely in particular arranged on waves rolling bearings known. This is, for example, in the DE 198 45 671 C1 proposed an arrangement in which on a shaft, a rolling bearing is secured or fixed with a locking element designed as a securing ring. For this purpose, the shaft initially has a recess with a first obliquely running side wall. The inner bearing ring of the rolling bearing additionally has a separate rectangular recess. The trapezoidal cross-section formed fuse element can be at least partially inserted into the recess and partially protrudes from the recess in the vertical direction. For fixing the securing element, in turn, a further additional spring element is provided, which is arranged between the inner bearing ring of the rolling bearing and designed as a securing ring securing element to exert a pressure on the securing element in the direction of the recess. Due to the possibility of moving the securing element, namely the locking ring within the recess substantially in the vertical height along the inclined first side wall axial tolerances of the arranged on the shaft bearing are on the one hand compensated, on the other hand, the inner bearing ring is fixed accordingly on the shaft or secured.

In the EP 0 422 372 A2 an arrangement is described, which is designed as axial securing a distributor rotor on the drive shaft of the distributor. For this purpose, a securing element is positively inserted into a conical recess of a shaft, wherein the securing element may be formed as a spring clip.

The arrangements known in the art are not yet optimal educated. On the one hand, a lot of components are like one as a retaining ring trained securing element plus a separate Spring element necessary, which not only high material costs, but also more installation effort arises. On the other hand, too the production of corresponding very elaborate cone-shaped Grooves associated with corresponding work and additional costs.

Of the Invention is therefore the object of the aforementioned Arrangement, from which the invention proceeds to design such and further develop that the design, labor and / or assembly costs, In particular, the resulting costs are reduced.

The previously indicated object is now solved by the machine element at least one, in a certain second Angled oblique second side wall has that the machine element can be arranged on or on the shaft in such a way and / or is positionable so that the first and the second side wall form a mounting gap for the fuse element. By the Combination of these features will now be the design, working and / or assembly costs significantly reduced. On the one hand are now not more - as usual in the prior art - several Components necessary, which must be mounted consuming, but it is initially only a security element necessary, which can be inserted into a mounting gap. As the following comments will still show vzw. the mounting gap for the respective fuse element self-locking trained. Other components such as additional Spring elements are therefore no longer necessary. Therefore is also the Reduced material costs, as well as simplifies assembly, thereby Costs can be saved. Furthermore, the production simplified arrangement of the invention, as on the one hand no complicated groove are incorporated into the shaft and in particular the second side wall on the machine element even vzw. before its arrangement on the shaft accordingly simple can be produced. The aforementioned disadvantages are therefore avoided and achieved corresponding benefits.

It Now there are a variety of ways the inventive Arrangement in an advantageous manner to design and develop. For this purpose may first on the claim 1 subordinate claims and to the following Description of a preferred embodiment of the Invention with reference to the following drawing and the associated Explanation be referenced. In the drawing shows:

1 in a simplified schematic representation partially cut from the side of a shaft arranged on a machine element, namely a bearing, with a corresponding securing element, shown here in two unterschiedli positions, namely for two "tolerance cases" (tolerance case 1 and tolerance case 2).

The 1 shows - at least partially - an arrangement 1 for axial securing and / or axial tolerance compensation of a machine element 2 , here's a warehouse 2a , in particular a rolling bearing shown here.

The machine element 2 , here the camp 2a , is on or at a wave 3 arranged. The bearing shown here 2a is on the outer circumference of the shaft 3 arranged accordingly. The wave 3 has a recess 4 with a at a certain first angle α ₁ obliquely extending first side wall 4a on. To secure the on the shaft 3 arranged machine element 2 , here's the camp 2a is at least one security element 5 provided, at least partially in the recess 4 insertable and / or insertable.

The disadvantages mentioned are now avoided by the fact that the machine element 2 , here the camp 2a at least one inclined at a certain second angle α ₂ second side wall 2 B that has the machine element 2 , here the camp 2a so on or on the shaft 3 can be arranged and / or positioned so that the first and second side walls 4a respectively. 2 B a mounting gap 6 for the fuse element 5 form. This is in the 1 clearly shown, although here two cases, namely the tolerance case 1 and the tolerance case 2, namely the different positioning of the fuse element 5 in the mounting gap 6 are shown, which will be explained in more detail below.

The 1 shows the arrangement 1 in a schematic representation partially cut from the side. Well visible here is the on the shaft 3 arranged machine element 2 that's here as a warehouse 2a , namely designed as a rolling bearing. Here, the inner bearing ring sits 2c on the outer circumference of the shaft 3 on, with the right end of the inner bearing ring 2c against a paragraph 3a the wave 3 supported.

The order 1 now serves on the one hand for axial securing, but on the other hand also for axial tolerance compensation of the arranged machine element 2 on the wave 3 , For this purpose, the recess 4 that in the wave 3 on the outer circumference vzw. provided annularly is a first side wall 4a on, which runs at a certain first angle α ₁ , as well as out 1 seen.

The existing hitherto in the prior art disadvantages are in particular now avoided by the fact that the inner bearing ring 2c at its outer area a second sloping side wall 2 B has, which is inclined at a second angle α ₂ , as well as out 1 seen. The mounting gap 6 is now formed by the first and second side walls 4a respectively. 2 B , in other words - this is formed on the one hand by the contour of the wave 3 in the region of the recess 4 and the contour of the machine element 2 even at his in 1 left outside area.

The fuse element 5 is now in this assembly gap 6 insertable or insertable here, as in the 1 for the two cases shown here, namely for the tolerance case 1 and the tolerance case 2. Here is the mounting gap 6 towards the shaft axis of the shaft 3 tapered, which is reflected by the angles α, and α _{2 of} the side walls 4a and 2 B is achieved. It is also conceivable, however, another arrangement, namely, for example, the arrangement of a machine element, for example. A bearing on the inner circumference of a shaft, so that the outer bearing ring of the respective bearing arranged here then by the appropriate arrangement 1 is limited or fixed, so that then such a mounting gap just not tapered in the direction of the shaft axis, but is tapered in the direction of the outer shaft circumference, which is not shown here.

As already mentioned, the machine element 2 vzw. as a warehouse 2a executed and the second side wall 2 B on the inner bearing ring 2c educated. In particular, the second side wall 2 B in the corner of the inner bearing ring 2c trained, just like this from the 1 is clearly visible.

The fuse element 5 is vzw. as a round wire ring 5a educated. Vzw. is the difference between the first and second angle α ₁ and α ₂ , ie between the first and second side wall 4a respectively. 2 B essentially 5 degrees. Here, the first angle α ₁ vzw. substantially 30 degrees and the second angle α ₂ substantially 35 degrees with respect to the corresponding horizontal as in FIG 1 shown.

But it is also crucial that the first and second side wall 4a respectively. 2 B or the first and second angles α ₁ and α _{2 are} formed and / or executed in such a way that when in the assembly gap 6 inserted fuse element 5 a self-locking of the fuse element 5 is realized against slipping out.

Preferably, the securing element 5 a bias on, so that the sliding in of the fuse element 5 in the mounting gap 6 is facilitated during assembly.

As the 1 shows, namely by the here shown two tolerance cases 1 and 2 can now appropriate tolerances of the machine element 2 , here's the camp 2a by a displacement / displacement of the securing element 5 within the mounting gap 6 be compensated.

Preferably, this slips as a round wire ring 5a trained fuse element 5 by its bias the slope of the first side wall 4a down to the stop with the second side wall 2 B of the inner bearing ring 2c , At an axial tension, so Kraftbeaufschlagung the camp 2a in the direction of the securing element 5 (ie in 1 from right to left) becomes the fuse element 5 , in particular the round wire ring 5a not from the recess 4 or groove of the shaft 3 pressed, since a corresponding self-locking is realized. Preferably, this is done with the specified angles α ₁ and α ₂ , but also other angles are conceivable vzw. at a difference of the angles α ₁ and α ₂ of ≤ 5 ° degrees.

At the in 1 Tolerance cases shown tolerance compensation of 0.35 mm is possible, but this depends on the installation space in individual cases.

With the aforementioned arrangement 1 are decisive advantages achieved and avoided corresponding disadvantages.

1

arrangement

2

machine element

2a

camp

2 B

second sidewall

2c

bearing ring

3

wave

3a

paragraph

4

recess

4a

first sidewall

5

fuse element

5a

Round wire ring

6

mounting gap

α ₁

first angle

α ₂

second angle

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• - DE 19845671 C1 [0002]
• EP 0422372 A2 [0003]

Claims (11)

Arrangement ( 1 ) for axial securing and / or axial tolerance compensation of a machine element ( 2 ), in particular a warehouse ( 2a ), on or on a wave ( 3 ), where the wave ( 3 ) a recess ( 4 ) with a first side wall running obliquely at a certain first angle (α ₁ ) ( 4a ) and for securing the on or on the shaft ( 3 ) arranged machine element ( 2 ) at least one security element ( 5 ) - at least partially - in the recess ( 4 ) can be inserted and / or inserted, characterized in that the machine element ( 2 ) at least one, at a certain second angle (α ₂ ) obliquely extending second side wall ( 2 B ), that the machine element ( 2 ) on or on the shaft ( 3 ) can be arranged and / or positioned, so that the first and the second side wall ( 4a . 2 B ) a mounting gap ( 6 ) for the security element ( 5 ) form. Arrangement according to claim 1, characterized in that the securing element ( 5 ) into the assembly gap ( 6 ) can be inserted and / or inserted. Arrangement according to claim 1 or 2, characterized in that the mounting gap ( 6 ) is designed to taper in the direction of the shaft axis. Arrangement according to one of the preceding claims, characterized in that the machine element ( 2 ) as a warehouse ( 2a ) and the second side wall ( 2 B ) on the inner bearing ring ( 2c ) is trained. Arrangement according to one of the preceding claims, characterized in that the second side wall ( 2 B ) in the corner region of the inner bearing ring ( 2c ) is trained. Arrangement according to one of the preceding claims, characterized in that the securing element ( 5 ) as a round wire ring ( 5a ) is executed. Arrangement according to one of the preceding claims, characterized in that the difference between the first and the second angle (α ₁ , α ₂ ) of the side walls ( 4a . 2 B ) is substantially 5 degrees or slightly less than 5 degrees. Arrangement according to one of the preceding claims, characterized in that the first angle (α ₁ ) is substantially 30 degrees and the second angle (α ₂ ) is substantially 35 degrees. Arrangement according to one of the preceding claims, characterized in that the first and the second side wall ( 4a . 2 B ) or the first and the second angle (α ₁ , α ₂ ) are formed and / or executed such that when in the assembly gap ( 6 ) inserted fuse element ( 5 ) a self-locking of the fuse element ( 5 ) is realized against slipping out. Arrangement according to one of the preceding claims, characterized in that the securing element ( 5 ) has a bias, so that the sliding in of the fuse element ( 5 ) into the assembly gap ( 6 ) is facilitated. Arrangement according to one of the preceding claims, characterized in that tolerances of the machine element ( 2 ) by a displacement / displacement of the securing element ( 5 ) (represented by the tolerance cases 1 and 2) within the mounting gap ( 6 ) are compensable.