| 摘要 |
FIELD: agriculture.SUBSTANCE: invention relates to headers for harvesting crops. The system comprises a first lever pivotally attached to the header. The first lever comprises a first part made with the ability to support the cutter bar, the second part comprising a torsion device connected with an adjustment device. The second part is made with the ability of hinged rotation about an axis by means of the adjustment device for selective increasing or decreasing the force applied to the first part. The adjustment device comprises a second lever interconnecting the torsion device and the first adjustment device having a first segment. The first adjustment device is made with the ability of movable receiving the second adjustment device. The first segment of the first adjustment device is made with the ability to follow a predetermined path in the first direction about the axis in response to movement of the second adjustment device with a first tendency relative to the first adjustment device. The first segment of the first adjustment device is made with the ability to follow a predetermined path in the second direction relative to the axis in response to the movement of the second adjustment device with a second tendency opposite to the first tendency relative to the first adjustment device.EFFECT: increase in crop harvesting performance is provided due to uniform support force to the cutter bar.18 cl, 12 dwg |
