| 摘要 |
<p>1) A self-moving operating machine with an axle having variable wheel gap, includes a chassis (1) to which a first axle (2) and a second axle (3) are bound respectively, and by which an operating arm (4) is supported, which is hinged with its base to the chassis (1) and carries a tool (5) at its free end. The first axle (2) and the second axle (3) are parallel to each other and provided with a pair of wheels (12) and with a pair of wheels (13) respectively. The first axle (2) has a length that varies upon command and includes at least two half-axles (2a, 2b) which are co-aligned and coupled to each other in axially sliding way. At least one of the half-axles (2a, 2b) is coupled in axially sliding way in a seat (10) made in a body (11) integral with the chassis (1) along a direction parallel to that of relative axial sliding between the two half-axles (2a, 2b). An actuator (6) is provided for acting, upon command, between said body (11) and that of said two half-axles (2a, 2b) which is not coupled to the seat (10), in a direction parallel to that of relative axial sliding between the two half-axles (2a, 2b).</p> |
