FI82001C - Elastic linkage device in a medium buffer coupling for a rail vehicle - Google Patents

Description

Flexible coupling device for intermediate buffer coupling for rail vehicles. - Elastisk länkananordning i en mellanbuffertkoppling för ett rälsfordon.

1 82001

The invention relates to a resilient articulated device for an intermediate buffer coupling for rail vehicles, in particular light rail vehicles, in which the housing has a housing attached to the vehicle and a coupling rod a plastic ring and both the coupling rod and the inner side of the housing have mutually directed rotating shoulder rings which engage the resilient rings laterally and the housing and the coupling rod have an oval cross-section and the rings are held in place by means of the shoulders.

DE-OS 2 701 984 in a resilient articulation device allows horizontal oscillations of the coupling rod by means of a housing bolt via a vertical bolt in the vehicle, while vertical oscillations and rotations about the coupling shaft are enabled by a resilient bearing in the coupling rod. This resilient articulation when using several resilient tires has proven to be completely reliable in heavy-duty rail vehicles under their operating conditions. Lighter and smaller rail vehicles usually do not have the installation depths required for installation and the installation height required for the installation of the pin. Taking into account the existing mounting height, the housing was therefore attached to the vehicle and the suspension was reduced to one ring to reduce the mounting depth. In this case, it has been found that one of the rings receives the tensile and compressive forces present, but by moving the largest cross-section of the drawbar to the horizontal plane, a horizontal return position was no longer obtained.

It is an object of the present invention to satisfy the above requirements in a resilient articulated device according to a species definition, so that a low horizontal height of the resilient articulated device in the case of a fixed housing enables a defined horizontal return position, always providing a return position with both vertical oscillations and rotational movements.

According to the invention, this object is solved in this way and the invention is characterized in that the largest axis of both the inner wall of the housing and the coupling rod and the largest axis of each oval ring.

An application example is shown schematically in the drawing, in which:

Figure 1 shows a longitudinal section of the device in the unloaded state.

Fig. 2 shows the device according to Fig. 1 under the effect of pressure in a loaded state.

Figure 3 shows a section along the line III-III in Figure 1.

The housing 1 is attached to a vehicle (not shown) and encloses a coupling rod 2 connected to the coupling head, whereby both the coupling rod 2 and the inner part of the housing 1 have an oval cross-section with a longer axis in the mounting position. The clutch 2 is provided with a rotating cam 4, 5 when the resilient ring 3 is used, while the housing 1 has a groove 6 delimited on the inside by the cams 4, 5, which is located opposite a part of the clutch rod 2. The shoulders 7 of the rotating cams 4, 5 and the shoulders 8 of the groove 6 are inclined at an angle to the vertical axis of the housing 1. The coupling rod 2 is held at a predetermined distance by means of a rubber or plastic ring 3 82001 biased between the straw 7 and arranged between the straws 7 perpendicular to the housing 1, the housing 1 consisting of the ring 3 is incised unilaterally or reciprocally.

When pressure is now applied to the clutch rod 2, as shown in Fig. 2, for example, the ring 3 tilts in response to the rolling contour and prestress provided by the formation of the straw and thus elastically receives impulses. In addition, with increasing load in the axial direction, the ring is elastically deformed, which provides a progressive elastic property. Under tensile stress, the device behaves in a similar way. The oscillating movements of the clutch in the vertical and horizontal directions are elastically received by the deformation of the ring 3. Due to the choice of the oval cross-section of the inner part of the coupling rod 2 and the housing 1, different restoring forces occur for the oscillating movements from the axial rest position of the coupling rod. The highest restoring forces and thus also the greater rigidity of the device result in a deviation in the plane of the longer axis. Over the required horizontal oscillation range of the coupling, the plane with the shorter axis of the cross-section is matched horizontally to obtain a deformation with a progressive characteristic curve and a defined initial position with restorations. The vertical movements of the coupling as well as the rotational movements around the coupling shaft and their defined return position are always within the limits set by the operating conditions in this device.

For use in heavy rail vehicles with their existing installation depths, this elastic turning with a fixed housing can also be achieved with more than one ring 3, whereby the number of cams 4, 5 and groove 6 is increased; correspondingly.

Claims (1)

A resilient articulated device for an intermediate buffer coupling for rail vehicles, in particular light rail vehicles, which device has a housing (1) attached to the vehicle and the entire cross-sectional circumference of the housing at the same distance from the housing inner wall 2 (12) at least one ring (3) of rubber or plastic prestressed perpendicular to the clutch shaft is arranged and both the clutch rod (2) and the inner side of the housing (1) have shoulder blades (4, 5; 8, 8) directed sideways towards each other and facing the resilient rings and wherein the housing (1) and the coupling rod (2) have an oval cross-section and the rings (3) are held in place by shoulders, characterized in that the major axis of both the inner wall of the housing (1) and the coupling rod (2) and the major axis of each oval ring (3) is vertical. The elasticity of the splitting and the splitting of the splice, in particular the splitting of the splice (1) and the splitting of the splice of the splice, the splice of the genus huset (1) och Kopp-lingsstängen (2) anpassats minst en i förhallande account Kopp-lingsaxeln verticking förspänd ring (3) av gummi eller plast och Bade pa kopplingsstangen (2) och husets (1) insida finns mot varandra riktade vridbara, i attached to a resilient cross-arm anchor (4, 5; 8, 8 '), and colored colors (1) and coupling rods (2) to be ovally colored and crossed (3). In the case of a lead-free device with a sheave, it is shown that the shafts of the oval ring (3) are shielded.