| 摘要 |
In a reciprocating slat conveyor, at least three slat sets of at least one slat (CS) each are driven by piston-cylinder drive units (26), one for each slat set. Each drive unit (26) is provided with a four-way proportional directional control (PDC) valve. Each PDC valve has a first position of adjustment in which it connects a first working chamber of its drive unit (26) to pressure (B) and a second working chamber to tank (T), and a second position of adjustment in which it connects the second working chamber to pressure (P) and the first working chamber to tank (T). The conveyor includes a drive module (22) comprising a pair of longitudinally spaced apart end frame members (70,72), each extending transversely of the conveyor, and a center frame member (74) positioned longitudinally between the two end frame members, and also extending transversely of the conveyor. <IMAGE>
|
