| 摘要 |
<p>A hydraulic crown support system (28, 31) employs a stationary cross head (30, 42) mounted within a cylinder (22) or beneath an extended nip shoe (24). Individual hydraulic pistons (34, 46) are disposed along the stationary cross head (30, 42), which, under the force of hydraulic pressure, support the inner wall (40) of a roll (22) or an extended nip shoe (24). The displacement of the support cylinders (34, 46) is controlled through one or more adjustable ports (66, 58, 76, 78, 80, 90) formed in the sidewall of the hydraulic cylinder or cylinders which support the roll (22) or extended nip shoe (24). With a piston (34, 46) which extends from one end of the stationary cross head (30, 42) to the other, some tilting from one side to the other of the cross head can be achieved by the adjustment of the pressure ports, thus compensating for misalignment in the vertical direction between an extended nip (24) or crown-controlled roll (22).</p> |
