| 主权项 |
1. A combine harvester (10) comprising:
wheels (14, 16) for engaging the ground and carrying the combine harvester (10) through an agricultural field; a chassis (12) supported on the wheels; a threshing drum (22) supported on the chassis (12); a threshing basket (34) wrapped around a portion of the threshing drum (22); and a feederhouse assembly (20) supported on the chassis (12) and disposed in front of the threshing drum (22), wherein the feederhouse assembly (20) comprises,
a housing (62) having a front end configured to receive crop from an agricultural harvesting head and a rear end configured to transmit crop to the threshing drum (22),an upper feederhouse roller (64) rotatably mounted at the rear end of the housing (62),a lower feederhouse roller (80) rotatably mounted at the front end of the housing (62), andan endless conveying element (82) comprising an inherently flexible material, and further comprising slats (84) fastened to the inherently flexible material,wherein the endless conveying element (82) is configured to circulate about the lower feederhouse roller (80) and the upper feederhouse roller (64),wherein a first of the feederhouse rollers (64, 80) is mounted so as to be movable relative to the housing (62) toward and away from a second of the feederhouse rollers (64, 80) along an imaginary connecting line (95) that extends between the feederhouse rollers (64, 80),characterized in that the first of the feederhouse rollers (64, 80) is configured to be coupled to a spring (86), to pre-tension the first of the feederhouse rollers (64, 80) with a force directed away from the second of the feederhouse rollers (64, 80) and applies a defined tension to the endless conveying element (82), and in that the movement of the first of the feederhouse rollers (64, 80) in the direction toward the second of the feederhouse rollers (64, 80) can be limited to a target position of the first of the feederhouse rollers (64, 80) that results from the force of the spring (86). |
