Fifth-wheel coupling and coupling method therefor

Abstract

The invention relates to a fifth-wheel coupling for releasably coupling a fifth-wheel tractor (10) to a semitrailer (20), comprising a fifth-wheel plate (1) on the fifth-wheel tractor (10), a kingpin(2), which is arranged on the semitrailer (20) and can be brought into engagement with the fifth-wheel plate (1) and is provided with an inner bore (21) oriented coaxial to the kingpin axis (Z), and an electrical and pneumatic insertion coupling for releasably connecting electrical and pneumatic lines (32, 31) between the fifth-wheel tractor (10) and the semitrailer (20), wherein the insertion coupling has a first insertion coupling part (11) on the fifth-wheel plate (1) and a second insertion coupling part (22) in the inner bore (21) of the kingpin (2), which are rotationally symmetric and can be inserted one into the other and can rotate relative to each other about the kingpin axis (Z), and the first insertion coupling part (11) is arranged on the fifth-wheel plate (1) in such a way that the first insertion coupling part can be moved by means of a lifting device (12) from a decoupled, retracted idle position (R) into a protruding coupling position (K) in which the first insertion coupling part is coupled into the second insertion coupling part (22), wherein a centering unit (13) is provided on the lifting device (12), which centering unit centers the relative position of the first insertion coupling part (11) in the idle position (R), wherein the centering is released in the coupling position (K) of the first insertion coupling part (11) in the second insertion coupling part(22) after the coupling operation. The invention further relates to a method for coupling a fifth-wheel coupling.

Description

technical field [0001] The invention relates to a saddle coupling system for detachably coupling a saddle tractor and a saddle trailer, the saddle coupling system includes a saddle plate on the saddle tractor; The kingpin on the trailer that can be embedded with the saddle plate, the kingpin is provided with an inner hole coaxially oriented with the axis of the kingpin; and is used for detachably connecting the saddle tractor and the saddle trailer Electrical and pneumatic plug couplings for electrical and pneumatic lines, wherein said plug couplings have a first plug coupling on said saddle plate and on said main A second plug-in coupling in the bore of the pin, said first plug-in coupling and said second plug-in coupling are constructed rotationally symmetrically, can be plugged into each other and can be arranged relative to each other around the main pin axis Rotate relative to each other and said first plug coupling on said saddle plate is arranged to be coupled to said ...

AI Technical Summary

Problems solved by technology

The disadvantage of these saddle coupling systems is that, when entering into the coupling, the centering of the plug parts that are plugged into each other is partially not achieved and errors are thus produced during the coupling process

Furthermore, during the coupling process and also in the coupled state, additional wear on the plug-in coupling occurs due to undesired relative movements between the plug-in parts.

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