| 摘要 |
A sieve frame (118, 122) for an agricultural harvester comprises two elongate members (300, 302, 308, 310) that are extruded and extend generally horizontally and in the direction of travel of the agricultural harvester. The sieve frame further comprises two additional extruded elongate members (304, 306, 312, 314) that are fixed transversely to the two elongate members. In one arrangement, the ends of the members are fixed together by hanger mounts. |
| 主权项 |
1. A reciprocating sieve frame (118, 122) for an agricultural combine, wherein the agricultural combine has a direction of travel (V) through the field harvesting crops, the reciprocating sieve frame (118, 122) comprising:
a first member (300, 302, 308, 310) that is elongate and has a first end and a second end, wherein the first member extends generally horizontally and in the direction of travel; a second member (300, 302, 308, 310) that is elongate and has a first end and a second end, wherein the second member extends generally horizontally and in the direction of travel, wherein the second member is spaced away from the first member a first distance, and wherein the second member is disposed generally parallel to the first member; a first cross member (304, 306, 312, 314) that is elongate and has a first end and a second end, wherein the first cross member extends longitudinally in a direction that is perpendicular to the direction of travel, wherein said first end of said first cross member is fixed to the first member, wherein said second end of said first cross member is fixed to the second member; and a second cross member (304, 306, 312, 314) that is elongate and has a first end and a second end, wherein the second cross member extends longitudinally in a direction that is perpendicular to the direction of travel, wherein said first end of said second cross member is fixed to the first member, wherein said second end of said second cross member is fixed to the second member; wherein the first member is an extrusion, and wherein the second member is an extrusion; wherein the first member (300, 302, 308, 310) defines a first cross-sectional profile that is perpendicular to an extrusion direction of the first member, and further wherein the first cross-sectional profile defines a first tubular section (400, 500); and wherein the first tubular section (500) further comprises a first tubular subsection (514) and a second tubular subsection (512), and further wherein the first tubular subsection is disposed above the second tubular subsection. |
