| 摘要 |
<p>A convertible earthmoving machine (1) has a self-propelled bottom frame (2); a top frame (3); an articulated boom (9) connected to the top frame and fitted with an implement (10); a main hydraulic circuit for powering the articulated boom (9) and the implement (10); an auxiliary hydraulic circuit for controlling accessory implements connectable to the articulated boom; an accessory connecting structure (31) hinged to the bottom frame to rotate, about a first hinge axis (34) and under the control of the articulated boom, between a raised position and a lowered position; a front push blade (15) connected to the accessory structure (31); and first (16) and second (35) articulating means interposed, respectively, between the implement (10) and the blade (15) and between the accessory structure (31) and the blade (15); a single hydraulic actuator (55) being connected to the auxiliary circuit to move the blade, with respect to the accessory structure, at least about a further hinge axis substantially perpendicular to the first hinge axis.</p> |
