| 摘要 |
A hay bale processor ( 10 ) having a cylindrical rotatable drum ( 14 ) adapted to displace a bale of hay ( 156 - 157 ) over a grill ( 26 ) which has a plurality of spaced-apart parallel slot openings ( 27 ) which are adjustable to define an average fiber cut length. A rotor ( 28 ) driven by an electric motor ( 66 - 67 ) has cutting blades ( 35 ) projecting through the openings to contact a bottom face ( 159 ) of a bale of hay ( 160 ) displaced over the grill. The rotor has a driveable shaft ( 29 ) secured to a displaceable suspension mechanism ( 45 ) to displace the blades ( 35 ) in the openings and above the grill a variable distance depending on the resistive load appliA hay bale processor ( 10 ) having a cylindrical rotatable drum ( 14 ) adapted to displace a bale of hay ( 156 - 157 ) over a grill ( 26 ) which has a plurality of spaced-apart parallel slot openings ( 27 ) which are adjustable to define an average fiber cut length. A rotor ( 28 ) driven by an electric motor ( 66 - 67 ) has cutting blades ( 35 ) projecting through the openings to contact a bottom face ( 159 ) of a bale of hay ( 160 ) displaced over the grill. The rotor has a driveable shaft ( 29 ) secured to a displaceable suspension mechanism ( 45 ) to displace the blades ( 35 ) in the openings and above the grill a variable distance depending on the resistive load applied to the blades of the rotor when a bale of hay is displaced over the grill. The displaceable suspension mechanism ( 45 ) is biased upwardly by an air cylinder ( 50 ) or air cushion device ( 280 ) to maintain a substantially constant pressure on the displaceable suspension such that when the load on the cutting knives of the rotor are subjected to a force exceeding the predetermined pressure of the cylinder the rotor is displaced whereby a substantially constant drive torque is maintained on the electric motor driving the shaft ( 29 ) of the rotor ( 28 ).
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