EP1186506B1 - Coupling head for a rigid automatic central coupling of railway vehicles - Google Patents

Abstract

The coupling head (10) for a rigid, automatic central coupling (100) of rail vehicles involves large (11) and small (12) coupling claws and an electrical coupling (18). The electrical coupling comprises a pin plug part (19) and a socket part (20). The socket part is arranged in the small coupling claw or the large coupling claw and the pin plug part is arranged in the large coupling claw or the small coupling claw. The socket part is fixed in its location and the plug part is longitudinally movable and spring-loaded in its location.

Description

The invention relates to a coupling head for a rigid automatic Central coupling of rail vehicles with a large coupling claw, with a small clutch claw and one between the two clutch claws arranged clutch bag whose cross section the Cross section of the small clutch claw is adjusted, with the clutch bag two mutually parallel guide surfaces for associated Guide surfaces of the small clutch claw and a clutch pocket bottom as an abutment for a support surface of the small coupling claw has and provided in the coupling head an electric clutch is.

There are central buffer couplings with electric couplings known in one Line coupling are arranged (DD 64 256 B1, DD 68 569 B1, DD 71 287 B1) and a lever mechanism during the coupling process through the Counter coupling driven in dome position be brought. These Lever gears accelerate the meeting line couplings with the electric clutch at high coupling speeds, so that restrictions in operational use are required. Warehousing and the drive of such mounted electric clutches is expensive.

In other embodiments, the electrical couplings include an additional pneumatic or electric drive with pneumatic or electrical controls (DE 196 36 225 A1, DE 196 47 906 A1), the electric couplings only after completion of the mechanical coupling process bring to the coupling. Such electrical couplings are expensive.

Coupling heads of the type described above belong to so-called Willison clutches, also called rigid automatic mid clutches can be designed so that also electrically connected to each other can be.

The invention is based on the object, a coupling head of the above described genus in which the shortcomings of the state the technology is eliminated and an electrical coupling is created, the robust and with little effort especially for the field of Freight wagon clutches is designed. This task is by the in the claim 1 specified characteristics solved.

In the coupling head according to the invention, the electric clutch is in Coupling head of the mechanical coupling as a plug part and as Socket provided mirror image of the center of the clutch, the Plug part spring loaded in the coupling head in adjusted uncoupled Position is stored. According to the arrangement takes place in the as Example selected known so-called Willison coupling in terms of the plug part in the big claw of the coupling body and in terms of of the female part in the small claw of the coupling body or vice versa. The female part is advantageously adjusted in the small claw screwed in and in the small claw are next to the socket part the centering holes for the alignment of the plug electrical coupling at coupled position arranged.

Advantageously, the plug part is in the region of the clutch bag bottom and the female part in the area of the support surface of the small Coupling claw arranged. A reverse arrangement is natural also possible.

The best coupling characteristics of the electric clutch in clutch The mechanical coupling have resulted when the plug part in uncoupled state of the coupling head by means of a storage area spring loaded at a bearing point in the coupling jaw is applied and that the storage area of the plug part as a cone section and the bearing point is formed in the coupling claw as an investment cone, so that the Stekkerteil in the coupling state of the coupling head transversely to its longitudinal direction and is freely movable in its longitudinal direction.

The female part has an insulating body, which interchangeable Socket contacts carries, with the replacement only the contact front parts be replaced and the connectors with the cable connection remain in the insulating body. Advantageously, the socket contacts stored backwards and downwards in the insulating body, so that adhering Dirt from the connector pins during the coupling process the socket contacts is pushed. A front inserted elastic Cover provides on the one hand as a seal and on the other hand produces over the pulled out latching collar and attached lips or tongues in conjunction with the insulator large creepage distances and clearances, so that leakage currents can be largely avoided.

The plug part consists of the rohrfömigen divided housing with the Centering pins and conical bearing surfaces for adjustment in the coupling head, the housing being over the outer preloaded spring in the Adjustment is maintained. The housing rear part and the housing front part are twist-proof with the inside plug insulation connected. The housing rear part carries a cable gland for cable connection and has a down-facing drainage hole. , In the front part of the housing, a spring-loaded lid is slidable and sealing stored, which is the elastic seal for the contact area wearing. In Steckisolierkörper the plug contacts are floating, when replacing only the front contact parts are changed and the connectors with the cable connection in Steckerisolierkörper remain.

In Steckerisolierkörper a switching contact is arranged, which during the coupling process switched by the lid movement and the coupling state (coupled / uncoupled) is queriable. In the plug insulation body is still a pneumatic check valve in a through hole between the air space under the cover in the front housing part and the cavity behind the insulating body in the housing rear part arranged so that on the one hand, the air access to the region of the contact tips only via the drainage hole with dirt deposit in the cavity the housing rear part takes place and on the other hand, the air in the air space of the area of the contact tips during the dome operation is compressed and only leaking forward from the elastic seal to the contact area helping to clean up the coupling point.

The outer preloaded spring is supported on the support plate of a mounted in the large claw Ausschwenk- and holding device, the swinging out the plug electrical coupling from the engagement area the coupling contour for staking behind the contour when coupling permitted with other couplings or inspection and maintenance work allowed.

By this configuration, an electric clutch on an automatic Central buffer coupling for rail vehicles created in the the electric clutch is two-part redundant from the spring-loaded Stekkerteil and the socket part and in the closing direction of the coupling profile is arranged so that the spring-loaded during the coupling process Plug part with its centering pins in the conical centering funnel aligned with the socket part, thereby for the coupling movements pivots without play and protected by a lid Plug pins sealingly coupling in the socket part, wherein the Push the plug pins through the bushing parts and dirt The resulting compressed air supporting the contact point of Dirt cleans.

Further advantageous embodiments and expedient developments The invention are specified in the subclaims.

Fig. 1

in einer Draufsicht in teilweiser geschnittener Teildarstellung den erfindungsgemäßen Kupplungskopf mit der Elektrokupplung in der kleinen Klaue und der großen Klaue einer bekannten Willison-Kupplung in ungekuppelter Lage,

Fig. 2

in einer Draufsicht den Kupplungskopf gemäß Fig. 1 in gekuppelter Lage mit einem weiteren Kupplungskopf,

Fig. 3

in einer senkrechten Schnittdarstellung das Steckerteil gemäß Schnitt A-A in Fig. 5,

Fig. 4

in einer senkrechten Schnittdarstellung das Steckerteil gemäß Schnitt B-B in Fig. 5,

Fig. 5

in einer Vorderansicht das Steckerteil gemäß Fig. 3 und 4,

Fig. 6

in einer Vorderansicht das Buchsenteil eingebaut in die kleine Klaue einer Willison-Kupplung in ungekuppelter Lage,

Fig. 7

in einer senkrechten Schnittdarstellung das Buchsenteil gemäß Schnitt A-A in Fig. 6, und

Fig. 8

in einer senkrechten Schnittdarstellung das Buchsenteil gemäß Schnitt B-B in Fig. 6.

An embodiment of the invention will be explained below with reference to the drawings. Show it:

Fig. 1

in a plan view in a partially sectioned partial representation of the coupling head according to the invention with the electric clutch in the small claw and the large claw of a known Willison clutch in uncoupled position,

Fig. 2

in a plan view of the coupling head of FIG. 1 in a coupled position with another coupling head,

Fig. 3

in a vertical sectional view of the plug part according to section AA in Fig. 5,

Fig. 4

in a vertical sectional view of the plug part according to section BB in Fig. 5,

Fig. 5

in a front view of the plug part according to FIGS. 3 and 4,

Fig. 6

in a front view the female part built into the small claw of a Willison coupling in uncoupled position,

Fig. 7

in a vertical sectional view of the socket part according to section AA in Fig. 6, and

Fig. 8

in a vertical sectional view of the socket part according to section BB in Fig. 6.

In Figure 1 is a detail in a partially sectioned view a coupling head 10 of a rigid automatic center clutch 100 shown by rail vehicles, the type of a so-called Willlison clutch is designed. For this purpose, the coupling head 10 a large clutch claw 11, a small clutch claw 12 and an intermediate both arranged clutch bag 13. Not shown a device with the two coupled coupling heads 10th can be made rigid. The small clutch claw 12 has two approximately parallel guide surfaces 14 and one below a Angle thereto arranged support surface 17. The clutch bag also has two approximately parallel guide surfaces 15, associated with the guide surfaces 14 of the small clutch claw 11 are and a clutch bag bottom 16, which corresponds to the support surface 17 is aligned.

In the coupling head 10, the electric clutch 18 is formed, which a plug part 19 and a socket part 20 is made. This works shown plug part 19 with a socket part, not shown a another coupling head not shown together, while the Socket 20 also with another plug, not shown the further not shown coupling head cooperates.

The plug part 19 is adjusted via a conical or conical bearing area 21 in the force-locked by the prestressed outer spring 22 against the cone or cone-shaped bearing 21 'of the big claw 11 held in uncoupled position, wherein the outer spring 22 via the support plate 23 also mounted in the large claw 11 Ausschwenk- and holding device 24, which pivoting out of the Plug parts 19 from the engagement region of the coupling contour for staking when coupling with alien couplings allowed, supported. The Bushing 20 on the other hand is adjusted in the small jaw 12 to center holes 25, 26 (see also Fig. 6) via the screw 27 attached and carries the socket contacts 28 which are within an insulator 29 of the socket body 37 of the female part 20 are arranged.

In the plug part 19 is in the front housing part 30 of the housing 31 a spring-loaded lid 32 slidably mounted, via the elastic Seal 33 with the lid passages 32a covering the air space 34, in which the plug contacts 38 are arranged. At the front of the housing 30, the centering pins 35, 36 are arranged, the dome in the Centering holes 25, 26 (Fig. 6) of the small claw 12 pre-centering engage and the aligned coupling of the plug contacts 37 with the Ensure socket contacts 28.

In Fig. 2, the coupled position of the redundantly arranged electric clutch 18, 18 'shown, wherein the coupled socket part 20' the Plug part 19 and the female part 20, the plug part 19 'from the adjusted uncoupled position has freely swung and the cone-shaped bearing point 21 'has detached from the cone-shaped bearing portion 21 to the Free-domed dome game to follow. At the same time they permeate Plug contacts 38, the socket contacts 28 and push adhering Dirt in the behind the socket contacts 28 in the insulating body 29 after provided at the back and bottom free spaces 39, wherein the lid 32 the Seal 33 sealingly against the bushing parts 20, 20 'presses and the Air space 34 compressed, so that the escaping air the contact area the coupling point cleans up of dirt.

The construction of the plug part 19 is shown in FIGS. 3, 4 and 5. The plug contacts 38 are floatingly mounted in Steckerisolierkörper 40 and their contact tips 41 are formed replaceable from the front, while the contact terminal 42 forming the cable terminal in the connector insulation body 40 remains. The housing rear part 43 is connected to the housing front part 30 and the Steckerisolierkörper 40 over the pin 45 against rotation connected. The housing rear part 43 carries a cable gland 46, which closes the cavity 47 and a bottom 48 arranged bore for drainage and air access. In Steckerisolierkörper 40 is a through-hole 49 with a check valve 50 is arranged, which allows air access to the air space 34 only via the bore 48, so that enters with the access of air through the bore 48 dust in the Cavity 47 settles and does not pollute the airspace 34 directly, further wherein the check valve 50 in the dome operation Compressing the air in the air space 34 when pushing back the Dekkels 32 allows its air for the supportive cleaning of the contact area the coupling point of the dirt serves. A switching contact 51 is arranged in Steckerisolierkörper 40 such that upon pressing back the lid 32 switches during the coupling process, the contact 32, so that its signaling for the display of the coupled or uncoupled Condition of the clutch is used.

The construction of the socket part 20, the figures 6, 7 and 8. The Socket part 20 forms a preassembled unit with the cable connection, aligned over the screw 27 in the small claw 12 is installed to the center holes 25, 26. The socket contacts 28 with the bushing bodies 37 are deformable behind the socket side Seal 52 arranged interchangeable and through the insertion Reachable 44, wherein the cable with the fittings 53 in Buchsenisolierkörper 54 remain. The deformable seal 52 generates with the pulled out latching collar 55 and on the insulator 29th facing side 57 arranged lip or tongue 56 in cooperation with the insulator 29 large creepage distances and clearances. The Lip or tongue 56 protrudes into a space 58 in the insulating body 29. Der Insulator 29 for the socket side is drawn in two parts in the sketches. However, this does not always have to be this way and depends on how the oval designed socket body for replacement (when worn) designed are. The free spaces 39, behind the socket contacts 28 after are formed behind and down, conduct through the socket contacts 28 pushed through dirt inside the claw 12 down open off.

LIST OF REFERENCE NUMBERS

means coupling

100

coupling head

10

big claw

11

small claw

12

clutch bag

13

guide surface

14

guide surface

15

Clutch bag bottom

16

supporting

17

electric clutch

18, 18 '

plug part

19, 19 '

female connector

20, 20 '

storage area

21

depository

21 '

feather

22

support plate

23

Ausschwenk- and holding device

24

centering

25, 26

screw

27

female contacts

28

insulator

29

Front housing

30

casing

31

cover

32

Lid through openings

32a

poetry

33

airspace

34

Pins

35, 36

bush body

37

Plug contacts / plug pins

38

free space

39

Steckerisolierkörper

40

contact tips

41

Contact fitting

42

Case back

43

insertion

44

pen

45

Cable gland

46

cavity

47

drilling

48

Through Hole

49

check valve

50

switching contact

51

poetry

52

connection piece

53

snap band

55

Tongue, lip

56

page

57

room

58

Claims (13)

1. Coupling head (10) for a rigid automatic central coupling (100) of rail vehicles, with a large coupling claw (11) and a small coupling claw (12) and a coupling pocket (13) arranged between the two coupling claws (11, 12) the cross-section of which is adapted to the cross-section of the small coupling claw (12), the coupling pocket (13) being provided with parallel guide surfaces (14) for associated guide surfaces (15) of the small coupling claw (12) and a coupling pocket bottom (16) as abutment for a support area (17) of the small coupling claw (12) and an electric coupling (18, 18') being arranged in the coupling head (10),
   characterised in that
   the electric coupling (18, 18') consists of a male connector (19, 19') and a female contact (20, 20'), the female contact (20, 20') being arranged within the small coupling claw (12) or the large coupling claw (11), and the male connector (19, 19') being arranged within the large coupling claw (11) or the small coupling claw (12), and that the female contact (20, 20') is firmly positioned within the small coupling claw or the large coupling claw (12, 11) and that the male connector (19, 19') is positioned in the large or the small coupling claw (11, 12) in a longitudinally movable and spring-loaded manner.
2. Coupling head according to claim 1,
   characterised in that
   the male connector (19) or the female contact (20) is arranged within the area of the coupling pocket bottom (16) and that the female contact (20) or the male connector (19) is arranged within the support area (17) of the small coupling claw (12).
3. Coupling head according to claim 1 or 2,
   characterised in that
   in the uncoupled state of the coupling head (10) the male connector (19) rests in a spring-loaded state by means of a bearing area (21) against a bearing (21') within the coupling claw (12) and that the bearing area (21) of the male connector (19) is formed as a conical section and the bearing (21') within the coupling claw (11) is formed as an abutment cone so that in the coupled state of the coupling head (10) the male connector (19) is movable transversely to its longitudinal direction and freely movable in the longitudinal direction.
4. Coupling head according to any one of claims 1 to 3,
   characterised in that
   at the coupling head (10) at least one centering pin (35, 36) is provided within the area of the large or the small coupling claw (11, 12) and that within the area of the small or large coupling claw (12, 11) at least one centering bore (25, 26) which is associated with the centering pin (35, 36) is provided.
5. Coupling head according to any one of claims 1 to 4,
   characterised in that
   the female contact (20) is provided with one or several socket bodies (37) containing sleeve-like socket contacts (28) and which are covered by a sealing (52) which leaves open the insertion holes (44) to the socket contacts (28).
6. Coupling head according to any one of claims 1 to 5,
   characterised in that
   the female contact (20) is provided behind the socket bodies (37) on an inner side with free spaces (39) for collecting dirt from the socket contacts (28).
7. Coupling head according to any one of claims 5 or 6,
   characterised in that
   the socket bodies (37) are positioned in the coupling claw (11, 12) behind the sealing (52) for front-side replacement in the coupling and uncoupling direction of the electric coupling (18).
8. Coupling head according to any one of claims 5 to 7,
   characterised in that
   the female contact (20) as a pre-fabricated complete module can be mounted or dismounted by means of a screw joint (27) and can be built in and removed as a whole.
9. Coupling head according to any one of claims 5 to 8,
   characterised in that
   the sealing (52) is provided on the side (57) which faces the female contact insulator (29) with at least one tongue or lip (56) which projects into a corresponding space (58) in the female contact insulator (29) for creating a large leakage current path.
10. Coupling head according to any one of claims 1 to 8,
    characterised in that
    the male connector (19) is provided with one or several pins (38) which in the uncoupled state of the coupling head are covered by a pot-like lid (32) which is movable against the restoring force of a spring (22) in the longitudinal direction of the coupling head (10) thereby releasing the pins (38) which penetrate the passages (32a) of the lid (32).
11. Coupling head according to any one of claims 1 to 10,
    characterised in that
    in the coupled state of the coupling head (10) the lid (32) is pressed against the female contact (20) thus forming a sealing for the electric coupling (18).
12. Coupling head according to any one of claims 1 to 11,
    characterised in that
    a switching contact (51) for showing/indicating the coupling state (coupled / not coupled) is arranged within the male connector insulator (40), in particular in the rear part of the male connector.
13. Coupling head according to any one of claims 1 to 12,
    characterised in that
    a through-hole (49) with a holding valve (50) is arranged within the male connector insulator (40) in such a manner that during the coupling operation air is compressed in the hollow space (47) blowing away dirt from the coupling point during coupling.

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