| 摘要 |
<p>There is provided a shale shaker (10) having at least a base (12), a shaker screen (14), a basket (16), and a screen retainer (18) for releasably mounting the shaker screen (14) to the basket (16). The basket (16) is mounted movably with respect to and on the base (12). The screen retainer (18) has at least a cam surface (20) and a tensioning device (22). The tensioning device (22) has at least a bearing surface (24) in contact with the cam surface (20), a spring (26) responsive to the bearing surface (24), and at least one screen contact surface for engaging the shaker screen (14) when the spring (26) is placed in compression by the exertion of force by the cam surface (20) on the bearing surface (24).</p> |
