DD145387A5 - PIPE COUPLING FOR MEDIUM BUFFER COUPLINGS OF RAIL VEHICLES - Google Patents

Description

"* ¹ ~ 21 4 7 66 Berlin, 25.10.1979

AP B 61 G / 214 766 * 55 850/26

Pipe coupling for rigidly coupling central buffer couplings of rail vehicles

Field of application of the invention

The invention relates to a pipe coupling for rigidly coupling central buffer couplings of rail vehicles whose coupling heads each carry one in a schachtförinigen recess of the coupling head against spring force evasive backward line housing for at least one air-conveying pipe body and on the faces of the line housing protruding gripper cams and recesses are present, being coupled in the Condition Gripping cam on a line housing in the gripper cam matched recesses engage the other line housing.

Characteristic of the known technical solutions

The line housing of the previously known pipe couplings for central buffer clutches hit each other at the moment of Kuppeins after centering on their gripper cams with their front end faces. Depending on the coupling speed, a different high part of the impact energy of the clashing housings is absorbed by their end faces. This leads to frequent stress on the deformation at the end faces and affects the tightness of the air lines.

An enlargement of the faces to reduce the deformation can not be realized for structural reasons, since the Stirnfläcbengröße the housing by the dimensions of the gripping cam and the associated recesses

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ΔΡ Β 61 G / 214 766 - '2 - 55 850/26

is limited «,

Aim of the inventors ·

The aim of the invention is to get the pipes largely tightly coupled during the coupling process.

presentation; the essence of the invention

The invention has for its object to provide a pipe coupling for rigidly coupling central buffer couplings whose coupling heads each carry a line housing for an air-guiding Robrkörper and provided on the end faces of the line housing gripping cams and depressions, so as to form during the Küpplungsvorgang by the clashing of the line housing deformations the housing end faces, which are essential for the tightness of the coupling can be avoided.

This is inventively achieved in that the end face of at least a'Greifnockens, a line housing is associated with a stop surface in the associated recess of the negative-line housing. This Anschlagfläcbe is able to absorb the majority of the impact energy of the clashing line housing, the housing end faces remain unaffected. The axial distance of the housing end face from the abutment surface and the distance of the end face of the associated gripper cam from the Gebäusestirnfläche. are essentially the same size. , ,

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The end face of the gripping cam with the associated stop surface is arranged symmetrically or approximately symmetrically to the vertical axis of the line housing.

E3 is advantageous to choose the distance of the end face of the gripping cam of its housing surface slightly smaller than the distance of the housing end face of the associated stop surface. This is also related to the fact that the coupling heads of the central buffer couplings with the associated line housings during the coupling process not exactly horizontal, but at angles collide. Such angles are also due to the fact that the coupling heads sag due to wear on the horizontal something.

Hacb another feature, the gripping cam is disposed near below the horizontal axis of the line housing. The end face of the gripping cam, which is associated with the stop surface, has the largest, axial distance from the housing end face of the line head relative to the end faces of the remaining gripper cams.

The end face of the gripping cam has a distance from the associated Anscblagfläcbe in the coupled state.

Ausführungsbejspie l

The invention will be explained in more detail below using an exemplary embodiment. In the accompanying drawing show:

Pig. 1: Zigei central buffer coupling heads in the coupled state

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Pig. 2: a longitudinal section through a Eobrleitungsgehäuse

Pig «3 * An end view of the piping housing after Pig. Second

In Fig. 1, a left coupling head 1 is shown, which has a hook-shaped Zugklaue 2, a prism-shaped 'formed jaw 3 and the right mating coupling head (1) under cross-guide shaft 4. When Gegenkupplungskopf (1), the Zugklaue are designated according to (2) and the prism-shaped Stoßklaue with (3). Below the horizontal axis of the coupling heads 1 and (1) are housed in unillustrated shaft-shaped recesses, the piping housing, of which in Pig. 2 and 3 only one piping housing is shown.

The Robrleitungsgebäuse contains an air-guiding Robrleitungskörper 6, at the front end of a line head 7 is welded. The cut rear end of the pipe body 6 protrudes with greater play through an opening 10 in the rear solid wall 9 of the shaft-shaped recess not shown in the central buffer coupling head for receiving the pipe housing. Between the pipe head 7 and the rear wall 9, a coil spring 8 is clamped. At the rear through the opening 10 projecting end of the pipe body 6, a pipe piece 11 is attached, which is connected by a bracket .11 * releasably connected to the pipe body 6. Adjacent to the pipe section 11 is an unillustrated air line hose, which is detachably held on the pipe section by a further bracket 11 ",

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The Eobrstück 11 forms an annular end face, which rests under the action of the prestressed coil spring 8 at the opening 10 comprehensive rear end face 12 of the wall 9 frictionally, Contrary to the force of the coil spring 8, the Bohrleitungsgebäuse dodge during the coupling process to the rear. By the force of the coil springs 8, the coupled piping housings of two coupling heads 1 and 1 are held in their coupled positions. In this case, the sealing rings 22 are pressed against each other airtight at the front ihden of the line head 7 second Robrleitungsgebäuse.

On the line head 7 are located in the front Gehäusestirnflächo 7 ^f axially superior gripping cam 13; 14; 15; 16; 17; 18 and 19 and symmetrically to this the gripping cam 13 adapted to, here unspecified depressions, so that in the coupled state of two Eobrleitungsgebäuse the gripping cams I3 to 19 engage in corresponding recesses in the mating coupling head 1 '.

It is essential that the gripping cam 17 below the Horizontalacbse the line housing a Anscblagflache 21 is assigned in the associated recess 20 for receiving the gripping cam 17. During the coupling process, the gripper cam 17 abuts with its end face on the Anscblagflache 21 in the recess 20 of the Gegenleitongsgehäuses and thus takes a (part of the impact energy that would have to be taken without such Anscblagfläche only from the clenched housing end faces 7 ¹ cLes Leitungsgebäuses ·

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In the embodiment, advantageously a gripping cam 17 has a stop face 21 associated with it, which lies close to below the horizontal axis of the line housing and which protrudes axially with respect to the other gripping cam furthest. In this embodiment, it was shown that the impact energy can be most effectively partially absorbed by the gripper cam 17 and the abutment surface 21, if its axial distance a from the housing end face 7 'of the line head 7 ^{J is} slightly smaller than the axial distance b the stop surface 21 of the housing end face 7 *.

It was found to be 'sufficient to allocate only one and that the gripping cam 17 a stop surface 21 in order to reduce the to be absorbed by the housing end face 7 ^{1 of} the line housing Sto3energie.

It can be assigned to other gripping cam corresponding Anscblagflächen in the associated 'wells to thereby minimize the aufzunehmende of a housing end face 7 ^{f of} a line housing impact energy to keep as small as possible, which is also important so that the sealing rings at the front ends of the pipe body 6 at Coupling process are largely spared and an air-tight coupling remains guaranteed even with respect to the horizontal sagging central buffer coupling heads.

The invention is not limited to a line housing with only one air line, and there may be electrical lines in addition to one or more air lines.

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In any case, at least one gripping cam will be selected to which a Anblblagflache is assigned in the counter-coupling head, thereby reducing the to be absorbed by the end face of the line housing impact energy. In this case, the dimensions may be such that the respective gripping cam impinges only during the coupling process on the associated stop surface, while in the coupled state of the stop surface has a distance.

Claims (7)

214 7 66 25.10.1979 AP B 61 G / 214 - 8 - 55 850/26 Inventions 1. Bohrleitungskupplung for rigid coupling central buffer couplings of rail vehicles, the coupling heads each carry in a schschtförmigen recess of the coupling head against spring force evasive cable housing for at least one air-guiding Robrkörper and vorbanden projecting on the faces of the line housing gripping cams and depressions, wherein in the coupled state gripping cams engage recesses adapted to a line housing in the gripper cam on the other line housing, characterized in that the end face of at least one gripping cam Ci?) a line housing is assigned a stop surface (21) in the associated recess (20) of the Gegenleitucgsgehäuses. 2. Pipe coupling according to item 1, characterized in that the axial distance (b) of the housing end face (7 ¹ ) of the stop surface (21) and the distance (a) of the end face of the associated gripping cam (17) "of the housing end face C7 ' ^f ) are substantially the same size. 3. Robrleitkupplung according to item 1 or 2, characterized dadurßü that the end face of the gripping cam (17) πΰ-ΐ the associated Anschiilagflache (21) is arranged symmetrically or approximately symmetrically to the vertical axis of the line housing. 4. Pipe coupling according to the points 2 and 3, characterized in that the distance (a) is slightly smaller than the distance (b) «. 214 7 66 ²⁵ · ¹⁰ · ¹⁹⁷⁹ - 9 - 55 850/26 5. Pipe coupling according to item 4, characterized in that the gripping cam (17) is arranged near below the Horizontalacbse the line housing, 6. Pipe coupling according to one of the items 1 to 5 », characterized in that the end face of the gripping cam (17), which is associated with the abutment surface (21), opposite the end faces of the remaining gripper cams (13; 14; 15; 16; 18; 19 ) has the largest axial distance (a) from the housing end face t7 ') of the line head (7). 7 · Pipe coupling according to one of the points 1 to 6, characterized in that the end face of the gripping cam (17) from the associated stop surface (21) in the coupled state has a distance. For this 3 pages drawing