DE102004039796A1 - Single-ringed homokinetic rod coupling for use in ship building, has fork arm connected with centrical base flange, which is pivoted on cylindrical roller bearings and is arranged on circumference of inner ring - Google Patents

Abstract

The coupling has two starwheels connected with drive and driven shafts, and connecting links rotatable about an axis. The links are connected symmetrically relating to a vertical center line of the coupling. A fork arm (13) is connected with a centrical base flange (16), which is pivoted on cylindrical roller bearings and is arranged on the circumference of an inner ring. The arm transfers the torque on the cylindrical roller bearings.

Description

The The invention relates to a homokinetic 1-ring link coupling according to the preamble of claim 1.

With the going back to the same applicant DE 2 431 383 C2 is already a coupling for off-axis, rotating shafts has been described, which consists of a respective connected to the driving and driven shaft drive star, and from each other about a common axis rotatable coupling intermediate members, which are arranged floating and connected to the two coupling members via tangentially directed links are.

object This known document is that each of the intermediate coupling members via a Handlebar with the drive or driven starter via another handlebar with was connected to the driven coupling member.

at This document, however, were three independently rotating rings needed resulting in high production costs and corresponding maintenance led.

On the local revelation of DE 2 431 383 C2 is referred to. This disclosure is intended to be fully encompassed by the disclosure of the present invention.

With the object of the older one Right after the German patent application DE 10 2004 004 444.9 has become known a homokinetic multi-ring link coupling, the already by several applications, both in shipbuilding and also in rail vehicles, a perfect and reasonably functional as well as best properties has proven.

These Perfection, however, required a higher price that did not counted on all applications. After a long development work is succeeded by redesigning the well-known multi-ring link coupling the most important and expensive parts and therefore also the production price strong to reduce.

Of the The invention is therefore based on the object, a further improvement to achieve the well-known 3-ring link coupling.

to solution the task is the invention by the technical teaching of claim 1.

at omitted the execution of the invention the two larger outer and middle coupling rings, which are also the most expensive parts of the clutch, as well as the four associated Side rings with their connecting arms.

In order to A total of 96 smooth bores, 48 threaded holes, 48 counterbores are required and 48 screws.

Farther There are two operations for the Production of two raceways for cylindrical roller bearings. These operations are filming, in addition a laser hardening and the grinding of the tracks. This work is eliminated by that in the old system to manufacture eight roller conveyors for storage were while There are only six tracks in the new system.

at the new system results in a slightly wider interpretation of the coupling; but this has no meaning, since the rubber bushes are always wider fail as the clutch itself.

With The present invention provides the further advantage that Now a simplified lubrication system can be used because As a result, only a single rotating ring is present, the clutch clearance in conjunction with the rubber bushes he brings. In particular, you can the older one Right specified check valves omitted in the lubrication system, causing the lubrication system overall easier fails.

After this the present invention instead of a 3-ring linkage only still proposes a 1-ring link coupling are a total of two rings omitted. Instead of the now omitted two rings and the additional omitted four outer rings with the associated Connecting arms strikes The invention now provides a simple fork arm, the one centric inward, circumferential Base flange forms on assigned cylindrical roller bearings is rotatably mounted.

Of the Base flange is integrally connected to the fork arm and thus very inexpensive produced. The two other, laterally arranged, each on the drive and driven side arranged flange rings are by a connecting these two flange rings connecting screw rotation connected with each other. This results in a cost-effective production the flange rings.

In the same way, the inner ring, which runs on the aforementioned cylindrical roller bearing assembly, via simple connecting means, namely a transverse screw in each case with associated drive and output side connecting arms connected.

By the elimination of the existing two larger rings and by the replacement of these two larger rings by a centrally arranged fork arm with a radially inwardly directed Base flange results in the new construction of the great advantage that this coupling now has a very small outer circumference, which the installation is much easier.

In order to it succeeds according to the invention, the total existing outer diameter at least 30% over the well-known 3-ring link coupling to reduce. Furthermore is based on the revelation of the elder Rightful reference, the content of the present content Revelation should be included.

by virtue of the reduced outer diameter necessarily also a correspondingly lower installation weight, due to lower centrifugal forces the wear of the circumferential parts greatly reduced.

Of the The core idea of the present 1-ring linkage coupling is therefore that starting from a drive side arranged drive star (The drive side is always in the drawings with the letter A denotes) around 120 degrees on the circumference offset arranged transverse bolt (hereinafter also bolt parts called) the drive torque on the circumference offset from each other transfer arranged bolts and each stud on its outer circumference is a rubber bushing wearing.

As a result, There are also three rubber bushes distributed around the circumference. which are applied to said bolt parts. The rubber bushes in turn are fitted in associated receptacles of drive links. The opposite End of the handlebar is over another rubber bushing is received in a receptacle of a fork arm, the on the outer circumference of the inner ring over corresponding cylindrical roller bearing is rotatably mounted.

Regarding the the aforementioned handlebar is - to 180 degrees offset on the circumference - the Output side of this handlebar arranged. The output side is again formed by connecting arms, at the free outer end in each case one again Recording for a rubber bush is arranged, in which engages a cross bolt and on the outer circumference of the output side link arm is attached. The opposite End of this link arms is then brought together in the output star.

It are therefore each around 120 ° degrees the same arrangement offset, so that said handlebars on the drive and driven side are present a total of three times.

Of the Inner ring has a central center hole, through which a Bearing shaft passes through, for example, fixed to a wheel axle or the like is attached.

Of the The core of the present invention is accordingly that the drive-side Handlebars over Rubber bushes on a centrally arranged and rotatable rotating Fork arm acting with a centric inwardly directed flange a cylindrical roller bearing assembly runs on the outer circumference the inner ring is attached.

The Driving force is thus over transmit the drive-side handlebars on the fork arm and offset by 180 ° from the fork arm to the output side handlebar, which in turn are connected to the output star.

The according to the invention and axial misalignments between the drive and driven side are by the rubber bushings according to the invention and handlebars added. These cause the compensation clearance of the clutch. On the other hand, the radial offsets balanced by pure kinematic function up to +/- 50 mm or more.

The coupling according to the invention is therefore also suitable axial and angular offsets between the drive and the output side to compensate.

The Speed of the clutch can be given the weight reduction given here by eliminating many parts of the old system accordingly elevated become; this depends on the size of the coupling and the material used.

The Invention is particularly for the transfer high torques suitable, as they are especially in water and Land vehicles are given. Preferred applications are in the installation in rail vehicles, in ships, in large land vehicles and the like more.

Of the Subject of the present invention does not arise only from the subject matter of the individual claims, but also from the combination the individual claims among themselves.

All information and features disclosed in the documents, including the abstract, in particular the three-dimensional training shown in the drawings, as erfindungswesent Lich claimed that they are new to the prior art individually or in combination.

in the Below, the invention will be described with reference to only one embodiment illustrative drawings closer explained. Here are more from the drawings and their description Essential to the invention features and advantages of the invention.

It demonstrate:

1 : Section through a 1-ring link coupling in a first embodiment according to the invention;

2 Section according to the line II-II in 1 ;

3 : an enlarged partial view of the section behind 1 in the area below;

4 : an enlarged detail view similar to an embodiment such as 3 , but with a new bearing arrangement.

The drive torque is transmitted via a drive star 1 transferred, which consists in the preferred embodiment of a three-armed star, which is rotatably connected, for example, with a transmission output shaft. The drive star 1 carries around the circumference distributed several threaded holes 11 wherein each threaded bore carries a screw which is connected to the drive part.

The in the upper part of the 1 illustrated connection of the drive star 1 with the remaining parts of the link coupling is therefore present three times, that is offset by 120 ° degrees.

This connection consists of a one-piece bolt, which consists of the two bolt parts 3 . 4 consists. The outer bolt part 3 is designed as a cone bolt and is in a conical recess 2 in the area of the drive star 1 by means of a screw 5 braced. It is material integral with the cylindrical bolt part 4 connected, which in the inner recess of a rubber bush 32 intervenes.

The rubber bush consists of an inner ring 7 , which rotatably on the outer circumference of the bolt part 4 is attached, on the outer circumference of a rubber sleeve 8th is arranged on the turn a steel sleeve 9 is appropriate.

Of the Structure of the rubber bush is in the rest in wide limits changeable. It can also in vehicle construction for the leadership of handlebars usual Silent blocks and the like can be used. Also, the term "rubber" is not limiting on the choice of materials specific. It can accordingly any elastomeric materials are used.

The drive side of the handlebar is with the rubber bushing 32a according to 2 provided and in this 2 is in the upper left side, the housing of the drive star 1 located.

The coming of the drive side A handlebar 10 will now have another rubber bush 32 and an associated radial screw 12 with a fork arm 13 connected, as in 1 and 2 is shown.

The fork arm continues opposite by 180 ° degree as another arm (see 2 the lower part) and ends there again in a rubber bush 32 whose outer circumference the output side arranged output link 30 is arranged, whose opposite end is connected to the output side and indeed with the housing of the output star 31 ,

The fork arm 13 consists of two mirrors symmetrical to the longitudinal center axis formed Gabelarmteilen 14 . 15 , wherein in each Gabelarmteil 14 . 15 one radial screw each 12 respectively 29 is arranged.

After the whole arrangement according to 1 is arranged exactly mirror-symmetrical to the central longitudinal axis, it is sufficient in most cases only to describe the left side of the embodiment, because the right side is designed exactly mirror-symmetrical.

Likewise, the entire 1-ring link coupling is rotationally symmetrical to the longitudinal center axis (shaft 41 and bore 27 ), so that it is sufficient here only to describe the upper part or the lower part of the respective drawing, because the other part is formed exactly symmetrical.

In the upper part of the 1 the section through a certain position of the drive side is shown, while the lower part section in 1 represents a offset by 30 ° degrees sectional view.

Now it is important that the fork arm 13 a centrally directed into the center axis base flange 16 carries, which engages in the space of a cylindrical roller bearing assembly.

The cylindrical roller bearing assembly consists of two axially to the Gabelarmteil 15 applying cylindrical roller bearings 18 , Which thus provide optimal guidance of the fork arm, because the Ba sisflansch 16 on its underside in a bearing flange 43 continues, which deals with associated sealing elements 17 on the independently rotating flange rings 55 supports and creates there.

The bearing flange 43 sits radially inwardly directed into a central guide bar 19 continuing between the cylindrical roller bearings 18 engages and is thus guided in the axial direction.

At the same time carry cylindrical roller bearings 18 also the base of the bearing flange 43 ,

The cylindrical roller bearings are by associated, each outside arranged guide rings 20 mechanically from the outer, coaxial and aligned cylindrical roller bearings 48 separated, on which rotatable (and parallel to each other) and in the mutual axial distance from each other arranged flange rings 55 are stored.

These flange rings 55 are about sealing elements 25 opposite the connecting arms 23 . 23a sealed.

On the outer circumference of the inner ring 22 are the cylindrical roller bearings 18 and 48 stored, with the inner ring 22 for better guidance a radially outwardly directed guide web 21 that is the guide bar 19 of the fork arm 13 opposite.

In this way, thus an absolutely backlash centering of the cylindrical roller bearings 18 . 48 on the inner ring 22 guaranteed.

To the outer circumference of the inner ring 22 are therefore the four cylindrical roller bearings 18 . 48 rotatably mounted.

The inner ring 22 is in the axial direction through the evenly distributed on the circumference transverse screws 26 interspersed, each transverse screw each side attaching and symmetrical to each other formed connecting arms 23 . 24 rotatably with the inner ring 22 combines.

According to 2 is the drive handlebar 10a on the rubber bush 32 stored and this is in turn on the marked there pin 3a with the connecting arm 23a connected, in turn, with the inner ring on the transverse screw 26 respectively 26a connected is.

This arrangement is set by 180 ° degrees 2 on the opposite side, so that accordingly the connecting arms 23 and 23a are connected to each other via the inner ring.

According to 2 is the output side arranged output arm 30 on the output side over a rubber bush 32 elastically yielding with the output star 31 connected.

The lower part section in 1 is a representation offset by 30 °, that is, the lower section is a section through the output side. This is due to the angled cut in 2 shown.

On the output side as well a circumferential fork arm is arranged, offset by 120 ° degrees staggered recordings for the rubber bushes 32 formed.

This fork arm 33 in turn consists of two symmetrically arranged and non-rotatably connected connection arms 34 . 35 , each by a transverse screw 46 connected to each other.

There is also a bolt on the output side, in the same way as the aforementioned bolt 3 . 4 is constructed.

The bolt part 36 is conical and over the lid 39 and the associated screw 38 in the conical recording of the output star 31 fitted.

Its associated, other bolt part 37 is cylindrical and forms the inner periphery of the output side arranged rubber bushings 40 ,

On the outer circumference of the rubber bush 40 is in each case the output side arranged output link 30 arranged.

In 3 is an enlarged view of the output side arranged fork arm 33 drawn and a specially suitable lubrication arrangement.

From a lubricant connection 45 starting, which is connected for example with a grease nipple, a bore extends 47 radially downwards, which is passed through the oppositely directed guide webs of the fork arm and the underlying inner ring. In this way, these parts are supplied with lubricant.

The hole 47 sits down in a hole 51 in a transverse, central lubrication hole 44 ends.

Starting from this lubrication hole, run radially upward lubrication holes 50 , in the range of axially abutting cylindrical roller bearings 18 . 48 lead and ins special the area of the guide rings arranged there 20 supply with lubricant. In this way, all parts of the cylindrical roller bearings 18 . 48 lubricated.

The 3 also shows that the two connecting arms 34 . 35 each offset by the transverse screws arranged on the circumference 46 connected to each other.

The upper end of the connecting arms 34 . 35 is each with a radial screw 49 provided, which the bolt part 36 . 37 with the fork arm 33 combines.

The right next to it arranged radial screw 49 performs the same task on the connection arm 35 out.

In 4 is opposite the 1 and 3 Yet another modification of the bearing assembly of the cylindrical roller bearings 18 . 48 shown. Here it is shown that on the outer circumference of the inner ring 22 a bearing ring 54 is attached, which is the support surface for the two independently rotating cylindrical roller bearings 18 and 48 forms.

It is also shown that between the independently rotating flange rings 55 and the base flange 16 of the fork arm 13 lip seals 52 are arranged.

It is also shown that the cylindrical roller bearings are bearing rings 53 . 53a carry, which are separated from each other.

1

drive star

2

recess

3

bolt part 3a

4

bolt part

5

screw

6

cover

7

inner ring

8th

rubber sleeve

9

steel sleeve

10

drive link 10a

11

threaded hole

12

radial screw 12a

13

fork arm

14

Gabelarmteil

15

Gabelarmteil

16

base flange

17

sealing element

18

Cylindrical roller bearings

19

guide web

20

guide rings

21

guide web

22

inner ring

23

connecting arm 23a

24

connecting arm

25

sealing element

26

transverse screw 26a

27

drilling

28

lubricator

29

radial screw

30

output link

31

output Stern

32

Rubber bushing (drive) 32a

33

fork arm

34

connecting arm

35

connecting arm

36

bolt part

37

bolt part

38

screw

39

cover

40

rubber bushing (Output)

41

Shaft (in bore 27 )

42

distance

43

Lagerflansch

44

lubrication hole

45

lubricant connection

46

transverse screw

47

drilling

48

Cylindrical roller bearings

49

radial screw

50

drilling

51

drilling

52

lip seal

53

bearing ring 53a

54

bearing ring

55

flange

56

centerline

Claims (13)

Homokinetic steering clutch for off-axis rotating shafts, each consisting of a drive star connected to the driving and driven shafts ( 1 . 31 ), as well as from each other about a common axis (bore 27 ) rotatable intermediate coupling members, which are arranged floating and with the two coupling members via tangentially directed links ( 10 . 10a . 30 ), characterized in that all the intermediate links of the coupling with respect to the vertical center line ( 56 ) of the coupling are arranged symmetrically and the transmission of the torque centric without inclination of the handlebars ( 10 . 30 ) and without offset between the rubber bushes ( 32 . 40 ) in the drive and driven star ( 1 . 31 ) and the connecting arms (fork arms 13 . 33 ) on the cylindrical roller bearings ( 18 . 48 ) he follows. Homokinetic steering clutch for off-axis rotating shafts, each consisting of a drive star connected to the driving and driven shafts ( 1 . 31 ), as well as from each other about a common axis (bore 27 ver rotatable intermediate coupling members, which are arranged floating and with the two coupling members via tangentially directed links ( 10 . 10a . 30 ), characterized in that a single rotating ring (inner ring 22 ) is available. Handlebar coupling according to claim 1 or 2, characterized in that on the outer circumference of the single rotating ring (inner ring 22 ) on the drive and output side each have a fork arm ( 13 . 33 ) is arranged. Handlebar coupling according to claim 1 to 3, characterized in that the fork arm ( 13 . 33 ) each have a centrally inwardly directed, circumferential base flange ( 16 , formed on assigned cylindrical roller bearings ( 18 . 48 ) rotatable on the inner ring ( 22 ) is stored. Handlebar coupling according to one of claims 1 to 4, characterized in that two further, laterally arranged, each arranged on the drive and driven side flange rings ( 55 ) by a transverse screw ( 46 ) are rotatably connected to each other. Handlebar coupling according to one of claims 1 to 6, characterized in that the inner ring ( 22 ), which on the aforementioned cylindrical roller bearing assembly ( 18 . 48 ) runs, via a transverse screw each with associated drive and driven side connecting arms ( 23 . 23a . 24 . 34 . 35 ) connected is. Handlebar coupling according to one of claims 1 to 6, characterized in that the drive-side link ( 10 . 10a ) via rubber bushings ( 32 . 32a ) on a centrally arranged and rotatable revolving fork arm ( 13 . 14 . 15 ), which with a centrally inwardly directed base flange ( 16 ) on a cylindrical roller bearing assembly ( 18 ) running on the outer circumference of the inner ring ( 22 ) and that coaxially aligned with this cylindrical roller bearing assembly ( 18 ) another cylindrical roller bearing assembly ( 48 ) for the output side fork arm ( 33 ) is arranged. Handlebar coupling according to one of claims 1 to 7, characterized in that the fork arm ( 13 ) of two mirror-symmetrical to the longitudinal center axis formed Gabelarmteilen ( 14 . 15 ), wherein in each fork arm part ( 14 . 15 ) each have a radial screw ( 12 . 29 ) is arranged. Handlebar coupling according to one of claims 1 to 8, characterized in that the fork arm ( 13 ) a centrally directed in the center axis base flange ( 16 ) bearing a bearing flange ( 43 ) in the intermediate space of a cylindrical roller bearing assembly ( 18 ) intervenes. Handlebar coupling according to one of claims 1 to 9, characterized in that the inner ring ( 22 ) is in the axial direction by the distributed evenly distributed on the circumference transverse screws ( 26 ) is penetrated, each transverse screw ( 26 ) each side attaching and symmetrical to each other formed connecting arms ( 23 . 24 ) rotatably with the inner ring ( 22 ) connects. Handlebar coupling according to one of claims 1 to 10, characterized in that for the supply of lubricant to the cylindrical roller bearings ( 18 . 48 ) in the base flange ( 16 ) of the fork arm ( 13 ) a lubricant connection ( 45 ) is provided, starting from a bore ( 47 ) directed radially inwardly through the mutually directed guide webs of the fork arm ( 13 ) and the inner ring ( 22 ) is passed. Handlebar coupling according to claim 11, characterized in that the bore ( 47 ) down into a hole ( 51 ) in a transverse, central lubrication hole ( 44 ) and that from this radially upward lubrication holes ( 50 ) extending in the region of the axially abutting cylindrical roller bearings ( 18 . 48 ) and in particular the region of the guide rings ( 20 ) supply with lubricant. Handlebar coupling according to one of claims 1 to 12, characterized in that on the outer circumference of the inner ring ( 22 ) a bearing ring ( 54 ) is mounted, the the support surface for the two independently rotating cylindrical roller bearings ( 18 . 48 ).