EP1048544B1 - Articulated link for vehicle units of railway vehicles - Google Patents

Abstract

The mounting of the coupling's spherical hinge bolt is effected via one-piece bearings. The cheeks(1a) of the coupling fork( have a half-shell(4) for pre-centering of the hinge bolt, and aligning outer holes(5). The hinge bolt is retained and fixed in a centered position on the fork by means of pins fitted through the holes in the fork cheeks and which by a conical section(8) fit correspondingly conical holes(6) in the hinge bolt.

Description

The invention relates to a universal joint for vehicle units of rail vehicles according to the preamble of claim 1.

Joint connections between multiple units are often based on the principle fork-and-fork constructions. These are usually a bolt as Connecting element inserted through holes in the fork cheeks and the tab. When coupling rail vehicles this type of mounting is in general not possible, because the required alignment of the holes of tab and fork cheeks can not be made. That's why the fork cheeks not drilled, but horizontally provided with half shells, in which the stuck in the tab hole bolts can be stored. As in the shared camp he is a counterpart, a screwed second half-shell, held down and fastened.

A known solution of this kind is shown in DE 41 21 080 A1. This coupling device for the ends supported on a common bogie two articulated vehicle units consists of a attached to the one vehicle unit, having two lateral fork cheeks Clevis, one attached to the other vehicle unit, between the two fork cheeks inserted connecting strap and a Coupling pin with arranged in the connecting plate spherical bearing. The spherical bearing is firmly in the connecting plate with the coupling pin arranged. Both fork cheeks have horizontally split, off a lower, fixed and an upper, detachable bearing shell existing bearings on, over which the coupling pin is clamped in the fork cheeks. A another fork-flap construction shows the DE 44 04 878 C1. Here is the Coupling pin in the fork cheeks or in two molded therein, prismatic Auflagern by means of bearing caps also set from above.

The solutions mentioned have the disadvantage that the coupling pin through the clamp connection used assumes no defined position. Besides that is when using conventional screw permanent security the screw against loosening with sufficient security too guarantee.

The invention is therefore based on the object, the known universal joints, which are based on the fork-flap principle, form such that the Determination of Sphärogelenkbolzens can take place in a defined position.

Still the invention, this is characterized by the features of claim 1 reached. Advantageous embodiments of the invention are in the subclaims 2 to 14 indicated.

An advantage of the invention lies in a simple coupling and uncoupling of Vehicles, depending on the type of vehicle the most favorable direction of the coupling process can be realized. Furthermore, the invention allows a backlash-free, clear bolt fastening in the fork. The Sphärogelenkbolzen is stored in fixed clutch fork half-shells either from above or horizontally-longitudinally or introduced from below and thereby receives a first centering. However, the actual mounting of the bolt is done by pins in holes the fork cheeks of the clutch fork, not in screwed clamp connections. With the help of a conical seat is a kind of extension of the bolt achieved, as in the conventional fork-tab connections, passes through all holes in alignment. Center and clamp the cones the Sphärogelenkbolzen and keep it in a unique position. The bolt is considered to be similar to a "between points" to be rotated workpiece.

By fixing the pin on a separate cover according to claim 2 with releasable fasteners (screws), these can be a unique Connection between cover and clutch fork regardless of the Establish the function of clamping the pin. The function of clamping is generated via a pressure element.

By training the attachment of the pin gem. Claim 11 with detachable Fasteners, in particular screws, the transverse force free by clamping sleeves are held, the permanent security against automatic loosening the releasable fastener significantly improved.

Fig. 1

einen horizontalen Schnitt durch eine Gelenkkupplung zum Kuppeln in vertikaler Richtung gemäß der Erfindung nach der Linie A-A in Fig. 2;

Fig. 2

eine Seitenansicht der Gelenkkupplung gem. Fig. 1 zum Kuppeln in vertikaler Richtung;

Fig. 3

einen horizontalen Schnitt durch ein zweites Ausführungsbeispiel einer Gelenkkupplung zum Kuppeln in horizontaler Längsrichtung gemäß der Erfindung nach der Linie A-A in Fig. 4;

Fig. 4

eine Seitenansicht der Gelenkkupplung gem. Fig. 3 zum Kuppeln in horizontaler Längsrichtung;

Fig. 5

einen horizontalen Schnitt durch ein drittes Ausführungsbeispiel der Erfindung nach Linie A-A in Fig. 6;

Fig. 6

eine Seitenansicht der Gelenkkupplung gem. Fig. 5 und

Fig. 7

einen Schnitt (um 90° gedreht) nach der Linie C-C in Fig. 6.

The invention will be explained below with reference to two embodiments. In the accompanying drawing show:

Fig. 1

a horizontal section through an articulated coupling for coupling in the vertical direction according to the invention along the line AA in Fig. 2;

Fig. 2

a side view of the universal joint acc. Fig. 1 for coupling in the vertical direction;

Fig. 3

a horizontal section through a second embodiment of an articulated coupling for coupling in the horizontal longitudinal direction according to the invention along the line AA in Fig. 4;

Fig. 4

a side view of the universal joint acc. Fig. 3 for coupling in the horizontal longitudinal direction;

Fig. 5

a horizontal section through a third embodiment of the invention along line AA in Fig. 6;

Fig. 6

a side view of the universal joint acc. Fig. 5 and

Fig. 7

a section (rotated by 90 °) according to the line CC in Fig. 6.

The figures show a arranged on a vehicle unit clutch fork 1 with the two side fork cheeks 1a and one on the other vehicle unit arranged coupling tab 2 and arranged therebetween Spherical hinge pin 3. A spherical bearing of the coupling tab 2 takes the in its central region spherically formed part of the Sphärogelenkbolzens 3 on. The fork cheeks 1a of the clutch fork 1 have half shells 4 for the spherical hinge pin 3 aligned, outer holes 5.

The attachment of the bolt ends is carried out by introduced into the holes 5 Pins 7, with their conical, front part 8 in the body the spherical joint pin 3 located, conical holes 6 engage. The pins 7 are connected to a flange 9, which by screws 11 and Clamping sleeves 10, the number of which is variable depending on the requirements, on the fork cheeks 1a determined. By the clamping sleeves 10, the screws are 11th kept free of lateral forces.

After placing the Sphärogelenkbolzens 3 gem. Figures 1 and 2 by inserting into the half shells 4 from above or acc. Figures 3 and 4 (second invention example) by horizontal longitudinal introduction into the half-shells 4, the spherical joint pin 3 receives a first centering. Also a lifting in itself downwardly opening half-shells 4 would be conceivable as a solution (not shown).

By the conical parts 8 of the pin 7 of the spherical joint pin is the third finally centered and kept in a clear position.

In a further embodiment of the invention (FIGS. 5, 6 and 7), the Attachment of the pin 7 with respect to the fork cheek 1a via a pressure element 12 and a holding lid 13, which by means of releasable fastening means, in particular screws 11 is fastened to the fork cheek 1a, wherein the pressure element 12 with the lid 13 and the pin 7 in operative connection is such that in the direction of the pin 7 pressure is exercised. The pressure element 12 is expediently designed as a pressure screw in the Lid 13 guided in a centrally arranged threaded bore 14 and against self-loosening on and opposite the lid 13 by means of securing element 15, in particular lock nut is secured.

A rotationally fixed, axial guidance of the pin 7 in the cover 13 is via a tongue and groove connection reached. In this case, the spring 16 is associated with the pin 7 and attached to this or as an integral or molded extension thereof formed and the groove 17 is disposed in the interior of the lid 13. The Assignment is also executable vice versa.

In the area of coverage of the cover 13 and pin 7 or spring 16 of the Pin 7 are at least two sides of the pressure element 12 threaded holes 18 provided for connecting the pin 7 with the lid 13 by means of screws 11.

In the area of coverage of the lid 13 and fork cheek 1a are at least two-sided to the pressure element 12 threaded holes (push-off thread 19) for pressing off the lid 13 with the pin 7 connected to it by means of Screws 11 provided.

The screws 11 for connecting the pin 7 with the lid 13 and the Screws 11 for pressing the lid 13 of the fork cheek 1a point preferably the same bore diameter as the screws 11 to Set the lid 13 on the fork cheek 1a.

The screws 11 for fixing the lid on the fork che 1a correspond in number and execution of the screws 11 for connecting the pin 7 with the lid 13 and the screws 11 for pressing the lid thirteenth from the fork cheek 1a. Preferably, four screws 11 are to be fastened the lid 13 is used. Of these 4 screws 11 found during disassembly 2 screws 11 for connecting the pin 7 with the lid 13 and second Screws for pushing the deck 13 (with screwed pin 7) of the Fork cheek 1 a use.

When mounting the tapered pin 7 by means of a separate cover 13th the releasable fastening means (screws 11) can be a unique connection between the lid 17 and fork cheek 1a regardless of the function of clamping the pin 7. The function of the terminal is over the Druckelelement 12 generates.

After the loose insertion of the pin 7 in the bore 6 of Sphärogelenkbolzens 3, the lid 13 is placed on the spring 16 of the pin 7, with his Bohrbild aligned with the holes in the fork cheek 1a and screwed. Thereafter, the pin 7 by means of the pressure element 12 is complete clamped in the conical bore 6 of Sphärogelenkbolzens 3.

For disassembly, after relaxing the pressure element 12 two of the four Screws 11 of the cover 13 in the threaded holes 18 of the spring 16 of the 7 pin screwed to a solid connection of the pin 7 and cover 13th manufacture. The other two screws 11 of the lid 13 are in the screwing thread 19 provided for this purpose and tightened with the lid 13 the pin 7 out of the bore 6 of the spherical joint pin 3 out.

After opening the universal joint only two components have to be removed, two pins 7 with cover 13 and the four screws therein 11. Die Parts can not be lost so easily and are in clearer Assignment as a compact module at hand.

LIST OF REFERENCE NUMBERS

1

clutch fork

1a

fork side flange

2

coupling lug

3

spherical joint

4

half shell

5

drilling

6

drilling

7

spigot

8th

conical part of the pin 7

9

flange

10

clamping sleeve

11

screw

12

pressure element

13

cover

14

threaded hole

15

fuse element

16

feather

17

groove

18

threaded hole

19

off thread

Claims (14)

1. Articulated coupling for vehicle units of rail vehicles, consisting of a coupling fork (1) fastened to one vehicle unit and a coupling link (2) fastened to the other vehicle unit, a spherical bearing in the coupling link, a fixed half shell (4) for the spherical joint pin (3) in the two fork side flanges (1a) of the coupling fork (1) and a spherical joint pin (3) which can be inserted in the direction of the aligned bores of the coupling fork and coupling link, characterised in that the spherical joint pin (3) is mounted in undivided bearings, in that the fork side flanges (1a) of the coupling fork (1) exhibit a half shell (4) for pre-centring of the spherical joint pin (3) and aligned outer bores (5) and in that the spherical joint pin (3) is held and fastened in a centred position in the coupling fork (1) by means of pivot pins (7) which are inserted through the bores (5) of the fork side flanges (1a) and engage with a conical part (8) in corresponding conical bores (6) in the spherical joint pin (3).
2. Articulated coupling according to claim 1, characterised in that the pivot pins (7) are fixed by means of a thrust element (12) and a separate cover (13) which holds the latter and is fastened to the fork side flange (1a) by means of releasable fastening elements, in particular screws (11), the thrust element (12) being operatively connected to the cover (13) and the pivot pin (7) such that pressure can be applied in the direction of the pivot pin (7).
3. Articulated coupling according to claim 2, characterised in that the thrust element (12) is embodied as a thrust screw which is guided in the cover (13) and secured in the cover (13) by means of a locking element (15), in particular a lock nut, to prevent it working loose on its own.
4. Articulated coupling according to one of claims 2 or 3, characterised in that a tongue and groove connection is arranged between the pivot pin (7) and the cover (13) with a tongue (16) on the pivot pin side and a groove (17) on the cover side to provide rotationally fixed axial guidance of the pivot pin (7) in the cover (13).
5. Articulated coupling according to claim 4, characterised in that the tongue (16) of the tongue and groove connection is arranged at the cover end of the pivot pin (7).
6. Articulated coupling according to one or more of the preceding claims 2 to 5, characterised in that in the area of the overlap of the cover (13) and pivot pin (7) or tongue (16) of the pivot pin (7) threaded bores (18) are provided on at least two sides of the thrust element (12) for connecting the pivot pin (7) to the cover (13) by means of screws.
7. Articulated coupling according to one or more of the preceding claims 2 to 6, characterised in that in the area of the overlap of the cover (13) and the fork side flange (1a) threaded bores (19) are provided on at least two sides of the thrust element (12) for pressing off the cover (13) with the pivot pin (7) connected to it by means of screws (11).
8. Articulated coupling according to claim 7, characterised in that the screws (11) for connecting the pivot pin (7) to the cover (12) and the screws (11) for pressing off the cover (13) from the fork side flange (1a) have the same bore diameter as the bores for the screws (11) for fixing the cover (13) to the fork side flange (1a).
9. Articulated coupling according to claim 8, characterised in that the screws (11) for fixing the cover (13) to the fork side flanges (1a) correspond in number and design with the screws (11) for connecting the pivot pin (7) to the cover (13) and the screws (11) for pressing off the cover (13) from the fork side flange (1a).
10. Articulated coupling according to claim 1, characterised in that the outer end of the pivot pin (7) is connected to a flange (9) which is fastened from the outside to the fork side flange (1a) by means of releasable fastening elements, in particular screws (11).
11. Articulated coupling according to one or more of the preceding claims 2 to 10, characterised in that the releasable fastening elements, in particular screws (11), are kept free of transverse force by clamping sleeves (10).
12. Articulated coupling according to one or more of the preceding claims 1 to 11, characterised in that the half shells (4) open towards the top and the spherical joint pin (3) can be inserted in the half shells (4) from above.
13. Articulated coupling according to one or more of the preceding claims 1 to 11, characterised in that the half shells (4) open in the longitudinal direction and the spherical joint pin (3) can be inserted in the half shells (4) essentially horizontally from the side.
14. Articulated coupling according to one or more of the preceding claims 1 to 11, characterised in that the half shells (4) open towards the bottom and the spherical joint pin (3) can be inserted in the half shells (4) from below.

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