DE102015223971A1 - Tapered roller bearings - Google Patents

Abstract

Tapered roller bearing (1) comprising an inner ring (2) with an outer conical tread (3), and tapered rollers resting on said conical tread (3) and a cage (13) holding the tapered rollers (10) at a mutual distance, and an outer race having an inner tapered raceway for the tapered rollers (10), the tapered rollers (10) being axially journaled at their small diameter end faces (12) on a retaining board (17) and having large diameter end faces (11) on a backup landing gear ring (10). 14) are guided, and that a permanent attachment of the Stützbordrings (14) by means of connecting means (18) on the tapered roller bearing (1) is provided. The solution to this problem is that the support board ring (14) by means of the connecting means (18) on the inner ring (2) at the end of the large diameter of the outer conical tread (3) of the inner ring (2) by means of connecting means (18) is attached a retaining board ring (16) is fastened at the end of the small diameter of the outer conical running surface (3) of the inner ring (2) by means of connecting means (18), and in that the inner ring (2) is fixed before fixing the supporting board ring (14) and the retaining board ring (2). 16) hardened edge layer (4) on the outer conical tread (3).

Description

The invention relates to a tapered roller bearing, comprising an inner ring with an outer conical tread, and tapered rollers which rest on this conical tread, and a cage holding the tapered rollers at a mutual distance, and an outer ring with an inner conical tread for the tapered rollers, wherein the tapered rollers are guided axially at their ends with small diameters on a retaining board and with their front sides with large diameters on a Stützbordring, and that a permanent attachment of the Stützbordrings is provided by means of connecting means on the tapered roller bearing.

Such a tapered roller bearing is from the CH 463 886 A known. It is a one-piece, single-row tapered roller bearing with an inner ring with an outer conical tread and a one-piece with the inner ring first pressure rib in the area of the smallest diameter of this conical tread, with a tapered roller row with tapered rollers which rest on this conical tread, with a cage holding the tapered rollers at a mutual distance and with an outer ring having an inner conical running surface for the tapered rollers. This tapered roller bearing has a separately formed second pressure rib provided with a radially extending abutment surface and an axially extending annular collar fitted into the outer ring at the large diameter end of the inner tapered raceway, the radially extending abutment surface of the second pressure rib on the outer ring rests. In addition, connecting means for mutually securing the outer ring and the second pressure rib are present, so that the tapered rollers are held axially when rolling with their end faces between the two pressure ribs. The second pressure rib is permanently fixed to the outer ring, for example by electron beam welding or laser beam welding, resulting in fusion of the abutting surfaces of the outer ring and the pressure rib.

The second pressure rib is radially inwardly provided with an axially extending collar that extends a short distance into the region of the outer ring to form a shield of its tread, thereby preventing any burr material from entering the treads. Welding is performed after the tapered roller bearing has been fully assembled, and the collar on the second pressure rib serves to protect the tapered rollers from heat during fusion. Instead of welding the second pressure rib to the outer ring, a connection by means of adhesive is also mentioned.

Against this background, the object of the invention is to propose an optimization of the ring geometry and of the ring components, by which an improvement in surface hardening, in particular an increase in the hardening depth and the process stability, can be achieved.

This object is achieved by a tapered roller bearing with the features of the independent claims 1, 9 and 10. Advantageous embodiments and modifications of the invention will become apparent from the dependent claims and from the following description.

The invention is therefore based on a tapered roller bearing, comprising an inner ring with an outer conical tread, and tapered rollers which rest on this conical tread, and a cage which holds the tapered rollers at a mutual distance, and an outer ring with an inner conical running surface for the tapered rollers, wherein the tapered rollers are axially guided at their end faces with small diameters on a retaining board and with their front sides with large diameters on a support board, and that a permanent attachment of the Stützbordrings is provided by means of connecting means on the tapered roller bearing. According to the invention, the support rim ring is secured by means of the connecting means on the inner ring, at the end of the large diameter of the outer conical tread of the inner ring by means of the connecting means.

The inner ring may have a retaining board integrally molded therewith without adversely affecting the surface hardening of the inner race tread, as such a retaining board integrally attached to the inner ring has substantially smaller dimensions than a support board integrally formed with the inner ring, however, it is preferred rather than integral To make with the inner ring Haltebords also a Haltebordring by means of connecting means at the end of the small diameter of the outer conical tread of the inner ring. In this case, the inner conical tread of the inner ring runs completely without heels. By such an inner ring geometry can be negative influences by the heat conduction, in particular a heat accumulation avoid.

Thus, the inner ring may have a peripheral layer of the outer conical raceway surface of the inner ring hardened prior to attaching the supporting rim ring and / or the retaining rim ring, and finishing the surfaces of the tapered roller bearing after the surface hardening of the outer conical raceway of the inner ring and the attachment of the Stützbordrings and / or the Haltebordrings on the inner ring, in particular an accurate Maßschleifen perform.

According to one embodiment of the invention, the tapered roller bearing is formed in two rows, which has a right inner ring and a left inner ring, between which a spacer ring is arranged, wherein the two inner rings each having an outer conical raceway, on which tapered rollers of two rows of tapered rollers rest, and at least a cage holding the tapered rollers at a mutual distance, as well as having an outer ring, which has two inner conical running surfaces against which rest the tapered rollers of the two conical roller rows. Such a double-row tapered roller bearing is advantageous as a slewing bearing for supporting a rotor shaft of a wind turbine usable.

There are various mounting options for the support rim ring and / or the retaining rim ring on the inner ring. Thus, the support rim ring and / or the retaining board ring can be fastened to a surface of the inner ring extending essentially perpendicular to the outer conical running surface of the inner ring. It can also be provided that the support rim ring and / or the retaining rim ring is fastened to a surface of the inner ring extending essentially radially with respect to a rotational axis of the tapered roller bearing. Finally, it can be provided that the support rim ring runs on a roller which runs essentially parallel to a rotational axis of the tapered roller bearing Surface of the inner ring is attached.

In a large, double row tapered roller bearing for wind turbines, it is advantageous if the tapered rollers are guided by a pin cage and the surface hardening is done inductively.

Finally, it can be provided that the support rim ring each have a directed against the front sides with a large diameter of the tapered rollers, remote support board and / or Haltebordring directed against the front sides with a small diameter of the tapered rollers, remote retaining board.

• – Der oder die Innenringe werden ohne Stützbord und Haltebord oder nur mit einem Haltebord aus einem randschichthärtbaren Wälzlagerstahl vorgefertigt;
• – danach wird/werden die äußere(n) konische(n) Lauffläche(n) des oder der Innenringe randschichtgehärtet, insbesondere induktiv randschichtgehärtet;
• – der oder die Stützbordringe und der oder die Haltebordringe oder nur der oder die Stützbordringe werden separat aus einem gute Gleiteigenschaften aufweisenden oder mit einer gute Gleiteigenschaften aufweisenden Oberflächenbeschichtung versehbaren Material gefertigt;
• – der oder die Stützbordringe und der oder die Haltebordringe oder nur der oder die Stützbordringe werden an dem oder den Innenringen mittels Verbindungsmitteln befestigt;
• – und nach dem Zusammenfügen des oder der Innenringe wird dem oder den Stützbordringen und/oder mit dem oder den Haltebordringen erfolgt die Endbearbeitung des Kegelrollenlagers, insbesondere durch Schleifen.

The above-mentioned object is further achieved by a method for producing a tapered roller bearing as defined above, comprising the following steps:

• - The or the inner rings are prefabricated without a support board and holding board or only with a holding board of a surface hardening bearing steel;
• - Thereafter, the outer conical (s) tread (s) of the inner ring (s) is / are surface hardened, in particular surface hardened, inductively;
• - The or the supporting rim rings and or the holding rings or only the or the support rings are made separately from a good sliding properties or with a good sliding properties having surface coating providable material;
• - The support or the rings and the retaining rings or only the or the support shrouds are attached to the one or more inner rings by means of connecting means;
• - And after joining the one or more inner rings of the support rings and / or with the one or more Haltebordringen the finishing of the tapered roller bearing, in particular by grinding.

It thus follows that the difficulties encountered in the inductive surface hardening of the raceways of the bearing rings of the known tapered roller bearings are avoided, which can be caused by the board geometry and the heat conduction and / or by a heat accumulation. During the manufacturing process, the ribs are disturbing factors and influence the hardening depth of the bearing rings. Accordingly, much effort is required in the known tapered roller bearings in order to achieve the required Einhärteiefe and to comply with these standards suitable. With the tapered roller bearing according to the invention and its manufacturing process rejects avoided, which is particularly important in costly large tapered roller bearings, which are used for supporting the rotor shaft of a wind turbine, is of importance.

The invention is explained below with reference to several illustrated in the accompanying drawings embodiments. In this shows

1 FIG. 2 is an axial partial sectional view of a first embodiment of a tapered roller bearing according to the invention without representation of the outer ring and with an attached supporting board ring and an attached retaining board, FIG.

2 3 is an axial partial sectional view of a second embodiment of an inner ring according to the invention with an attached support rim ring and a retaining board integrally formed with the inner ring,

3 3 is an axial partial sectional view of a third embodiment of an inner ring according to the invention with an attached support rim ring and a retaining board integrally formed with the inner ring,

4 a partial axial sectional view of a first embodiment of a double-row tapered roller bearing according to the invention, and

5 a partial axial sectional view of a second embodiment of a double-row tapered roller bearing according to the invention.

Accordingly, shows 1 a first embodiment of a tapered roller bearing 1 that has an inner ring 2 with a radially outer conical tread 3 which has a hardened surface layer 4 Has. In the area of the large diameter of the conical tread 3 has the inner ring 2 a radial projection 5 with a parallel to a rotation axis 20 tapered roller bearing 1 running surface 5a and a radial axis of rotation 20 at a distance from the diameter-sized end of the conical tread 3 running paragraph 6 on. At the small diameter end of the conical tread 3 of the inner ring 2 has the inner ring 2 an axial projection 7 with a radial axis of rotation 20 extending contact surface 7a on. This is a paragraph 8th formed at which the conical tread 3 of the inner ring 2 ends with her small diameter.

On the radially outer conical tread 3 of the inner ring 2 lie tapered rollers 10 a tapered roller row 9 on which through a cage 13 are kept at a distance from each other and are guided by this. A diameter-sized front 11 the tapered rollers 10 is on a support surface 15a one at a support board ring 14 remote support boards 15 guided while the front ends 12 with small diameter of tapered rollers 10 on a holding surface 17a one at a Haltebordring 16 deposed holding boards 17 are guided axially.

Before the support board ring 14 and the holding board ring 16 on the inner ring 2 be attached, the hardened surface layer 4 , preferably by inductive hardening, on the outer conical tread 3 of the inner ring 2 generated. Because the conical tread 3 of the inner ring 2 in the area of their large diameter in front of the heel 6 of the inner ring 2 ends and at the paragraph 8th in the area of the small diameter of the conical tread 3 free ends, the inductive hardening process can be carried out without complicated tools, so that the hardened surface layer 4 has a continuous, substantially uniform thickness.

The attachment of the support rim ring 14 and the retaining ring 16 on the inner ring 2 done by means of screws 18 or pens. However, it is also possible, the support board 14 and the holding board ring 16 be permanently attached by gluing or welding by electron beam welding or laser beam welding.

After fixing the support rim ring 14 and the retaining ring 16 on the inner ring 2 can be a finishing of the outer conical tread 3 and the support surface 14a at the remote support board 15 as well as the holding surface 17a at the remote stop board 17 , for example, by grinding, perform.

To the inductive surface hardening of the inner ring 2 To be able to perform this inner ring exists 2 from a surface-hardenable bearing steel, since the tapered rollers 10 on the outer conical tread 3 of the inner ring 2 essentially roll off. Between the two front sides 11 . 13 the tapered rollers 10 and the support surface 15a of the remote support board 15 at the support rim 14 as well as the holding surface 17a at the remote stop board 17 of the retaining ring 16 occurs only a sliding contact, so that the support board 14 and the holding board ring 16 either made of a material with good sliding properties, such as bronze or brass, or on the support surface 15a of the remote support board 15 and on the holding surface 17a the remote holding board 17 provided with a coating with good sliding properties. This can be done, for example, by nitriding the support surface 15a and the holding surface 17a done when the support rim 14 and the holding board ring 16 Made of a suitable steel.

According to 1 has the holding board ring 16 radially inside the same diameter as the axial bore 19 of the inner ring 2 , Because the holding board ring 16 however, by the axial projection 7 is guided radially, the bore diameter of the Haltebordrings 16 also be larger than the diameter of the hole 19 of the inner ring 2 , which is not shown separately here.

2 shows a second embodiment, in which the inner ring 21 a tapered roller bearing 1 a radially outer conical tread 22 and a hardened surface layer 23 has, and in which the inner ring 21 radially inside a piece with this manufactured retaining board 24 having. At a radial to the axis of rotation 20 of the inner ring 21 running surface 26 on the other, diameter-sized axial side of the inner ring 21 is a support board ring 28 by means of fastening screws 31 screwed. This inner ring 21 has an axial bore 25 on, whose diameter is equal to the inner diameter of the Stützbordrings 28 is. Also in this case, the inner diameter of the Stützbordrings 28 larger than the inner diameter of the hole 25 be.

To the notch stresses in the transition from a holding surface 24a at the radially inboard retaining board 24 to the conical tread 22 of the inner ring 21 to reduce, which is particularly harmful to a hardened surface layer 23 which can be up to the area of the holding surface 24a of the holding board 24 extends, is in the transition region between the holding surface 24a of the holding board 24 and the small diameter axial end of the tread 22 of the inner ring 21 provided in a known manner a groove. Similarly, the inner ring 21 at the transition between the conical tread 22 of the inner ring 21 in the area of his large diameter towards the aforementioned mounting surface 26 a rounding off 27 with a relatively large radius. This rounding off 27 is from a remote support board 29 at the support rim 28 radially and axially overlapped, the one support surface 29a for the installation of the rolling elements 10 and with a transition to the support rim 28 over a groove 30 is provided.

Because the holding board 24 on its holding surface 24a only small axial forces due to the tapered rollers 10 has its radial height is significantly lower than that of the support surface 29a at the remote support board 29 of the support ring 28 , which is why the surface hardening in the area of the retaining board 24 less problems.

A simplified embodiment of a Stützbordrings 38 on an inner ring 32 a tapered roller bearing 1 is in 3 shown. This inner ring 32 points, like the inner ring 21 according to 2 , radially in one piece with the inner ring 32 manufactured holding board 35 with a holding surface 35a low radial extent. A radial to the axis of rotation 20 running surface 37 at the axially opposite axial end of the inner ring 32 forms a paragraph 37a holding a support rim 38 receives. At the radially outer end of the Stützbordrings 38 results from a conical tread 33 of the inner ring 32 vertical support surface 38b a support board 38a , where the support surface 38b a larger radial extent than the support surface 35a having.

A hardened surface layer 34 runs as in the embodiment according to 2 from the holding board 35 until the end of the conical tread 33 at the larger diameter of the inner ring 32 , The transition from the radial to the axis of rotation 20 extending surface 37 to the outer conical tread 33 is simplified drawn at an acute angle, but it can also be rounded or have a chamfer. The attachment of the support rim ring 38 on the inner ring 32 also takes place here by means of screws 31 trained fasteners. A hole 36 of the inner ring 32 is here formed axially continuous because of the Stützbordring 38 not up to the inner diameter of the hole 36 enough.

The 4 and 5 show two preferred embodiments of large, double row tapered roller bearings 39 . 67 for use in wind turbines. Same, matching elements of these double row tapered roller bearings 39 . 67 are provided with the same reference numerals.

Out 4 is the double row tapered roller bearing with the reference number 39 seen. It includes a right inner ring 40 with a through hole 40a , an outer conical tread 41 with a hardened surface layer 42 , where the right inner ring 40 an outer, perpendicular to the outer conical tread 41 extending axially outer mounting surface 43 and an inner, also perpendicular to the outer conical tread 41 extending axially inner mounting surface 44 having. A right tapered roller row 45 with tapered rollers 46 lies on the outer conical tread 41 of the right inner ring 40 on. The tapered rollers 46 each have an axial bore 46a on, through the bolts 50 a bolt cage 49 are guided.

The tapered rollers 46 are with their diameter-sized front 47 on a right support surface 57b a right support board 57a on a right support rim 57 guided, while a small diameter end face 48 the tapered rollers 46 on a right holding surface 58b a right holding board 58a on a right holding board ring 58 are guided. The support board ring 57 and the holding board ring 58 are by means of fastening screws 59 which the through hole 40a in the right inner ring 40 reach through, against the right inner ring 40 stretched and lead in the manner described the tapered rollers 46 in the axial direction.

The conical tread 41 of the right inner ring 40 has a hardened surface layer 42 on, which is inductively produced by means of a corresponding device, without that the device especially to the right inner ring 40 must be adjusted, since the conical tread 41 of the right inner ring 40 without offset on the two mounting surfaces 43 . 44 ends.

Mirror image to the right inner ring 40 is in the double row tapered roller bearing 39 a left inner ring 51 arranged, being axially between the right inner ring 40 and the left inner ring 51 a stepped spacer ring 66 is arranged, which is dimensioned so that the right tapered roller row 45 and a left, the left inner ring 51 assigned tapered roller row 56 , with the clearance required during operation, respectively on the outer conical tread 41 of the right inner ring 40 or on the outer conical tread 52 of the left inner ring 51 can roll off.

Like the right inner ring 40 also has the left inner ring 51 an outer conical tread 52 with a hardened surface layer 53 on. A left support board ring 60 is on an axially outer, left Anschraubfläche 54 of the inner ring 51 arranged, which are perpendicular to the conical tread 52 of the left inner ring 51 is aligned. The support board ring 60 has a left support board 60a on top, with a left support surface 60b is provided.

Axially inside is on the left inner ring 51 a left holding board ring 61 arranged, which at one axially inner mounting surface 55 of the inner ring 51 which is also perpendicular to the conical tread 52 of the left inner ring 51 is aligned. The holding board ring 61 has a left holding board 61a on top, with a left-hand support surface 61b is provided. The holding board ring 61 is by means of through holes 51a in the left inner ring 51 thorough fastening screws 59 against the left inner ring 51 braced, leaving the left tapered roller row 56 with little play on the left support surface 60b and on the left holding surface 61b is guided. Also on this side of the tapered roller bearing 39 show the tapered rollers 46 one axial bore each 46b on, through which the bolts 50 a bolt cage 49 are guided.

The tapered rollers 46 the two tapered roller rows 45 . 56 Furthermore, each lie on a right, radially inner conical tread 63 or on a left, radially inner conical tread 64 an outer ring 62 on, a through hole 65 to its attachment in a housing, for example, a wind turbine has. The right, radially inner conical tread 63 and the left, radially inner conical tread 64 of the outer ring 62 can, as well as the radially outer conical tread 41 of the right inner ring 40 and the radially outer conical tread 52 of the left inner ring 51 , Not shown, have hardened edge layers.

Also with this double row tapered roller bearing 39 the production of the hardened surface layer takes place 42 in the area of the radially outer conical tread 41 of the right inner ring 40 and the hardened surface layer 53 in the area of the radially outer conical tread 52 of the left inner ring 51 before mounting the two support rings 57 . 60 as well as the two retaining rings 58 . 61 , The finishing of the radially outer conical tread 41 of the right inner ring 40 , the right support surface 57b and the right holding surface 58b and the radially outer conical tread 52 of the left inner ring 51 and the left support surface 60b on the left support board 60a as well as the left holding surface 61b on the left holding board 61a takes place after installation of the support rings 57 . 60 and the retaining rings 58 . 61 each on the right inner ring 40 as well as on the left inner ring 51 , Again, the finishing is preferably a grinding of component surfaces.

The embodiment of the double row tapered roller bearing 67 according to 5 has one with the outer ring 62 the embodiment according to 4 identical outer ring 62 accordingly, the same radially inner conical treads 63 . 64 and the axial through-hole 65 having. Likewise, the two tapered roller rows 45 . 56 including cage 49 constructed identically and arranged only mirror images, so that the individual elements of the two tapered roller rows 45 . 56 are provided with the same reference numerals.

A right inner ring 68 and a left inner ring 78 Double row tapered roller bearing 67 are mirror images of each other and arranged by the already mentioned spacer ring 66 held to a predetermined axial distance from each other, as with respect to the 4 already described. The right inner ring 68 has a radially outer conical tread 69 on, in the area of a hardened surface layer 70 is trained. This right inner ring 68 has a radially outer, to the axis of rotation 20 parallel screw-on surface 71 for the arrangement of a right supporting rim 74 on, whose right supporting board 74a with a right support surface 74b on the diameter-sized end faces 47 the tapered rollers 46 the first tapered roller row 45 rests and accordingly perpendicular to the radially outer conical tread 69 of the right inner ring 68 runs. To attach this support rim ring 74 on the right inner ring 68 are fixing screws 76 in assigned threaded holes 68a in the right inner ring 68 screwed.

A right hand holding ring 75 with an angled retaining board 75a has a right holding surface 75b on, which is also perpendicular to the radially outer conical tread 69 of the right inner ring 68 runs. The right holding board ring 75 is in through a radially inner, radial to the axis of rotation 20 Double row tapered roller bearing 67 extending surface 72 and a radially inner, to the axis of rotation 20 parallel inner surface 73 of the right inner ring 68 formed paragraph radially inward on the right inner ring 68 arranged as well as with the right inner ring 68 by means of through holes 68b in the right inner ring 68 thorough fastening screws 77 , which are assigned in tapped holes 75c the right hand holding ring 75 are screwed in, connected.

The left inner ring 78 is a mirror image of the right inner ring 68 arranged and formed so that this is a radially outer conical tread 79 and a hardened surface layer 80 having. A left support board ring 84 is at a radially outer, to the axis of rotation 20 parallel outer surface 81 of the left inner ring 78 by means of fastening screws 86 attached, which in associated threaded holes 78a of the left inner ring 78 are screwed in.

A left holding board ring 85 is in through a radial surface 82 and a peripheral surface 83 formed paragraph in the left inner ring 78 inserted and there by means of through holes 78b sweeping, in associated threaded holes 85c in the left holding board ring 85 screwed fastening screws 87 held.

The tapered rollers 46 the second row of tapered rollers 56 are between a left support surface 84b on the left support board 84a and a left-hand holding surface 85b on the left holding board 85a in the same way as the tapered rollers 46 the first tapered roller row 45 led and in the already mentioned cage 49 added.

As already mentioned, the hardened surface layers can be removed 42 . 53 on the two inner rings 40 . 51 tapered roller bearing 46 according to 4 and the hardened surface layers 70 . 80 on the inner rings 68 . 78 tapered roller bearing 67 according to 5 Produce using simple induction tools that do not rely on specially adapted hardening tools, which is the case for large and expensive double-row tapered roller bearings 39 . 67 is of great importance for wind turbines. The same applies to the not shown hardened surface layers on the outer rings 62 of these two tapered roller bearings 39 . 67 whose conical treads 63 . 64 can also be provided with the hardened surface layers with simple hardening tools, resulting in less scrap and this double-row tapered roller bearings 39 . 67 with great precision for the intended application.

All the features mentioned in the preceding description of the figures, in the claims and in the introduction to the description can be used both individually and in any combination with one another. The invention is thus not limited to the described and claimed feature combinations, but all feature combinations are to be regarded as disclosed.

LIST OF REFERENCE NUMBERS

1

 Tapered roller bearings

2

 inner ring

3

 Outer conical tread of the inner ring

4

 Hardened surface layer of the inner ring

5

 Radial projection on the inner ring

5a

 Surface parallel to the axis of rotation on the inner ring

6

 Paragraph on the inner ring

7

Axial projection on the retaining board 16

7a

 Radial to the axis of rotation extending contact surface

8th

Heel on the retaining rim 16

9

 Tapered roller row

10

 tapered rollers

11

 Diameter large front side of the tapered rollers

12

 Diameter small front side of the tapered rollers

13

 Cage

14

 Support ring ring

15

 Deposed support board

15a

 support surface

16

 Holding board ring

17

 Deposed retaining board

17a

 holding surface

18

 Connecting means, screws

19

 Bore of the inner ring

20

 Rotation axis of the tapered roller bearing

21

 inner ring

22

 Outer conical tread

23

 Hardened surface layer

24

 holding board

24a

 holding surface

25

 Bore of the inner ring

26

 Radial to the axis of rotation extending surface, mounting surface

27

 rounding off

28

 Support ring ring

29

 Deposed support board

29a

 support surface

30

 fillet

31

 Fastener, screw

32

 inner ring

33

 Outer conical tread

34

 Hardened surface layer

35

 holding board

35a

 holding surface

36

 Bore of the inner ring

37

 Radial to the axis of rotation extending surface, mounting surface

37a

 paragraph

38

 Support ring ring

38a

 support ring

38b

 support surface

39

 Double row tapered roller bearing

40

 Right inner ring

40a

 Through Hole

41

 Right, outer conical tread

42

 Hardened surface layer

43

 Right, outer, perpendicular to the tread aligned surface, mounting surface

44

 Right, inner, perpendicular to the tread surface, mounting surface

45

 Right tapered roller row

46

 tapered rollers

46a

 pin bore

46b

 pin bore

47

 Diameter large front side of the tapered rollers

48

 Diameter small front side of the tapered rollers

49

 pin cage

50

 bolt

51

 Left inner ring

51a

 Through Hole

52

 Outer conical tread

53

 Hardened surface layer

54

 Left, outer, perpendicular to the tread surface

55

 Left, inner, perpendicular to the tread surface

56

 Left tapered roller row

57

 Right, outer support rim

57a

 Right support board

57b

 Right support surface

58

 Right, inner holding board ring

58a

 Right holding board

58b

 Right holding surface

59

 fixing screw

60

 Left, outer support rim

60a

 Left support board

60b

 Left support surface

61

 Left, inner retaining ring

61a

 Left holding board

61b

 Left holding surface

62

 outer ring

63

 Right inner conical tread

64

 Left inner conical tread

65

 Through hole in the outer ring

66

 Spacer ring between two inner rings

67

 Double row tapered roller bearing

68

 Right inner ring

68a

 threaded hole

68b

 Through Hole

69

 Right, outer conical tread

70

 Hardened surface layer

71

 Outer outer surface parallel to the rotation axis

72

 Inner, radially to the axis of rotation extending surface

74

 Right, outer support rim

74a

 Right support board

74b

 Right support surface

75

 Right, inner holding board ring

75a

 Right holding board

75b

 Right holding surface

75c

 threaded hole

76

 fixing screw

77

 fixing screw

78

 Left inner ring

78a

 threaded hole

78b

 Through Hole

79

 Left, outer conical tread

80

 Hardened surface layer

81

 Outer outer surface parallel to the rotation axis

82

 Inner, radially to the axis of rotation extending surface

83

 Inner, parallel to the axis of rotation inner surface

84

 Left support rim

84a

 Left support board

84b

 Left, angled support surface

85

 Left retaining ring

85a

 Left holding board

85b

 Left holding surface

85c

 threaded hole

86

 fixing screw

87

 fixing screw

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

• CH 463886 A [0002]

Claims (10)

Tapered roller bearings ( 1 . 39 . 67 ), comprising an inner ring ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) with an outer conical tread ( 3 . 22 . 33 . 41 . 52 . 69 . 79 ), and tapered rollers ( 10 . 46 ), which are on this conical tread ( 3 . 22 . 33 . 41 . 52 . 69 . 79 ) and the tapered rollers ( 10 . 46 ) holding at a mutual distance cage ( 13 . 49 ), and an outer ring ( 62 ) with an inner conical tread ( 63 . 64 ) for the tapered rollers ( 10 . 46 ), the tapered rollers ( 10 . 46 ) axially at their end faces ( 12 . 48 ) with small diameters on a holding board ( 17 . 24 . 35 . 58a . 61a . 75a . 85a ) and with their end faces ( 11 . 47 ) with large diameters on a support board ring ( 14 . 28 . 38 . 57 . 60 . 74 . 84 ) and that a permanent attachment of the support rim ring ( 14 . 28 . 38 . 57 . 60 . 74 . 84 ) by means of connecting means ( 18 . 31 . 59 . 76 . 86 ) on the tapered roller bearing ( 1 . 39 . 67 ), characterized in that the support board ( 14 . 28 . 38 . 57 . 60 . 74 . 84 ) by means of the connecting means ( 18 . 31 . 59 . 76 . 86 ) on the inner ring ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) is attached. Tapered roller bearings ( 1 . 39 . 67 ) according to claim 1, characterized in that the supporting board ring ( 14 . 28 . 38 . 57 . 60 . 74 . 84 ) at the end of the large diameter of the outer conical tread ( 3 . 22 . 33 . 41 . 52 . 69 . 79 ) of the inner ring ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) by means of the connecting means ( 18 . 31 . 59 . 76 . 86 ) is attached. Tapered roller bearings ( 1 . 39 . 67 ) according to claim 1 or 2, characterized in that a retaining board ( 16 . 58 . 61 . 75 . 85 ) by means of connecting means ( 18 . 59 . 77 . 87 ) at the end of the small diameter of the outer conical tread ( 3 . 41 . 52 . 69 . 79 ) is attached to the inner ring. Tapered roller bearings ( 1 . 39 . 67 ) according to one of claims 1 to 3, characterized in that the inner ring ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) one before attaching the support rim ring ( 4 . 28 . 38 . 57 . 60 . 74 . 84 ) and / or the retaining ring ( 16 . 58 . 61 . 75 . 85 ) hardened surface layer ( 4 . 23 . 34 . 42 . 53 . 70 . 80 ) on its outer conical tread ( 3 . 22 . 33 . 41 . 52 . 69 . 79 ) having. Tapered roller bearings ( 1 . 39 . 67 ) according to claim 4, characterized in that the tapered roller bearing ( 1 . 39 . 67 ) one after the surface hardening of the outer conical raceway ( 3 . 22 . 33 . 41 . 52 . 69 . 79 ) of the inner ring ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) and securing the support rim ( 14 . 28 . 38 . 57 . 60 . 74 . 84 ) and / or the retaining ring ( 16 . 58 . 61 . 75 . 85 ) on the inner ring ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) carried out finishing of the surfaces. Tapered roller bearings ( 39 . 67 ) according to one of claims 1 to 5, characterized in that the tapered roller bearing ( 39 . 67 ) has a double row and a right inner ring ( 40 ; 68 ) and a left inner ring ( 51 ; 78 ), between which a spacer ring ( 66 ), wherein the two inner rings ( 40 . 51 ; 68 . 78 ) each have an outer conical raceway ( 41 . 52 ; 69 . 79 ) on which tapered rollers ( 46 ) of two rows of tapered rollers ( 45 . 56 ) and with at least one of the tapered rollers ( 46 ) in a spaced-apart cage ( 49 ), as well as with an outer ring ( 62 ), which has two inner conical running surfaces ( 63 . 64 ), on which the tapered rollers ( 46 ) of the two conical roller rows ( 45 . 66 ) issue. Tapered roller bearings ( 1 . 39 . 67 ) according to one of claims 1 to 6, characterized in that the supporting board ring ( 57 . 60 ) and / or the retaining board ring ( 58 . 61 ) at a perpendicular to the outer conical tread ( 41 . 52 ; 69 . 74 ) of the inner ring ( 40 . 51 ) extending surface ( 43 . 44 ; 54 . 55 ) of the inner ring ( 40 . 51 ), and / or that the support board ( 28 . 38 ) and / or the retaining board ring ( 60 . 75 . 85 ) at a radial with respect to a rotation axis ( 20 ) of the tapered roller bearing ( 1 . 67 ) extending surface ( 7a . 26 . 37 . 72 . 82 ) of the inner ring ( 2 . 21 . 32 . 68 . 78 ), and / or that the support board ( 14 . 74 . 84 ) on a parallel to a rotation axis ( 20 ) of the tapered roller bearing ( 1 . 39 . 67 ) running surface ( 5a . 71 . 81 ) of the inner ring ( 2 . 68 . 78 ) is attached. Tapered roller bearings ( 1 . 67 ) according to one of claims 1 to 7, characterized in that the supporting board ring ( 14 . 28 . 38 . 74 . 84 ) one each against the end faces ( 11 . 47 ) with large diameter tapered rollers ( 10 . 46 ), remote support board ( 15 . 57a . 60a . 74a . 84a ) and / or the retaining board ring ( 16 . 58 . 61 . 75 . 85 ) one against the end faces ( 12 . 48 ) with small diameter of the tapered rollers ( 10 . 46 ), remote holding board ( 17 . 58a . 61a . 75a . 85a ) exhibit. Method for producing a tapered roller bearing ( 1 . 39 . 67 ) according to one of claims 1 to 8, characterized in that - the inner ring or rings ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) without support board and holding board, or only with a holding board ( 24 . 35 ), are prefabricated from a surface hardening bearing steel, - that thereafter the outer (s) tread (s) ( 3 . 22 . 33 . 41 . 52 . 69 . 79 ) of the inner ring or rings ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) is or are hardened on the surface, - that the supporting rim or rings ( 14 . 22 . 38 . 57 . 60 . 74 . 84 ) and the holding ring (s) ( 16 . 58 . 61 . 75 . 85 ) or only the one or more support rings ( 14 . 20 . 38 . 57 . 60 . 74 . 84 ) are made separately from a material which has a good sliding properties or can be provided with a surface coating having a good sliding properties, - that the inner ring or rings ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) and the supporting rim (s) ( 14 . 28 . 38 . 57 . 60 . 74 . 84 ) and the holding ring (s) ( 16 . 58 . 61 . 75 . 85 ) or only the one or more support rings ( 14 . 28 . 38 . 57 . 60 . 74 . 84 ) to each other by means of connecting means ( 18 . 31 . 59 . 76 . 77 . 86 . 87 ), and - that after joining the inner rings ( 2 . 21 . 32 . 40 . 51 . 68 . 78 ) with the or the support rim rings ( 14 . 28 . 38 . 57 . 60 . 74 . 84 ) and / or with the holding board or rings ( 16 . 58 . 61 . 75 . 85 ) the finishing of the tapered roller bearing ( 1 . 39 . 67 ) he follows. Use of a large tapered roller bearing ( 1 . 39 . 67 ) according to one of claims 1 to 9 for supporting a rotor shaft in a wind turbine.

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