Method and apparatus for reduction of damage to the mines clearing vehicles in the case of explosion of a large land mine

摘要

The present invention relates to a method and an arrangement which are used in ground mine clearance by means of a mechanical mine clearer (1) operating according to the rotary cultivator principle and which, in the event of mine detonations (52) triggered by the mine clearance tool (12) of the mine clearer (1) having caused mines to detonate, are intended to minimize the damage to the tool (12) and to prevent damage to its drive function and suspension. The invention is based on the concept that the detonation forces acting on the tool (12) are, in a first stage, damped by hydraulic and/or mechanical damping members (40, 41, 16-18) which are coupled between the bearing points (13, 14) of the tool and the engine driving the tool and which connect these parts to form a combined unit; then, in a second stage, counter to the effect of at least some of the combined weight of the unit formed by the tool (12), its bearings (13, 14) and the engine (6) driving the tool, they pivot this unit upwards about a transverse axis (15) arranged in the chassis (2) of the mine clearance vehicle (1) so that the mine clearance tool (12) is lifted from the detonation site (52); and, in a third stage, if so required, they allow the tool to break up along a connecting link between its parts working the actual soil layer and the bearings (13, 14) on which it is normally rotated, without these bearings being affected.