Especially mobile working machine and manufacturing method for vehicle concrete pump

Abstract

The invention relates to a vehicle-mounted concrete pump (10) comprising a vehicle-mounted support structure (14) for a concrete distribution rod (16) and at least two pivotally mounted via articulated joints (20). Support jacks (22) connected to the support structure (14), each articulated joint (20) comprising two support plates (34) made of solid material, each support plate having a bearing hole (36) and in the support structure The delimiting wall ( 32 ) of ( 14 ) protrudes at a lateral distance from each other in the form of bifurcations above the edge and has hinged bolts ( 38 ) traversing the bearing holes ( 36 ). According to the invention, the central area between the support plates (34) of the delimiting wall (32) facing the hinge bolt (38) is at a distance from the hinge bolt (38) compared to its edge area adjacent to the support plate (34). Axis (40) is farther.

Description

technical field [0001] The invention relates to a mobile working machine, in particular a vehicle-mounted concrete pump, having: a load-bearing structure secured to the vehicle, in particular for a concrete distribution bar; and at least two supports hinged to the load-bearing structure via respective hinge points a leg, wherein each hinge point comprises two support plates made of solid material, each support plate provided with a bearing hole and protruding at a lateral distance from each other in a bifurcated manner above the edge of the demarcation wall of the load-bearing structure, and A hinge pin extends vertically through the mutually aligned bearing holes. The invention also relates to a method for manufacturing a hinge point for a support leg of such a mobile working machine. Background technique [0002] The hinged coupling of the swivel leg to the rod base of the vehicle concrete pump is similar in its construction to the two links of a bicycle chain interconnec...

AI Technical Summary

Problems solved by technology

However, such a process implies rotating the rod base by 180°, since the machining center is very limited in its tool travel, and therefore the travel is not sufficient to form the hole from above or below

Rotating the rod base in turn implies correspondingly elaborate and expensive equipment for fixing the parts, or inaccuracies caused by the drilling itself when forming the holes

However, the hinge pin can only be positioned very close to the load-bearing structure of the rod base if the machining tool is moved in the inner region between the link plates of the rod base and from there machines at least one of the two bearing holes thus still retaining sufficient space for processing instruments

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