| 摘要 |
A mowing machine is connectable to a tractor's lifting hitch and power take-off shaft. A row of rotors is mounted along the length of a laterally extending support plate that is pivoted to the main frame. Each rotor includes a hub and cutter member assembly on an upwardly extending shaft engaged by a driving assembly. The driving assembly can be an elongated shaft that passes through a gear box for each rotor that is fastened to the support plate or a series of meshed gear wheels housed as a readily replaceable unit in a gear box and journalled to the support plate. The assembly includes a single blade pivoted to each hub eccentric with respect to the axis of rotation of the respective rotor and a counter balancing component. Reduction gearing interconnects the power take-off shaft to the shafts of the rotors through a main gear box to revolve their blades at high rates of speed, i.e. at least 6000 and preferably 8000 to 10,000 r.p.m. The blades of neighboring rotors can be rotated in the same or in relative opposite directions.
|
