| 摘要 |
FIELD: agricultural engineering. ^ SUBSTANCE: farm crop pickup has frame, share mounted on frame, front and rear beaters, follower working tool and supporting members, and picking-up working tool mounted on follower working tool under front beater. Picking-up working tool is composed of three rolls rotating in opposite directions. First roll is made in the form of six-sided shaft. Second and third rolls are made in the form of rod-type rolls, with distance between rods being equal to minimal diameter do min of onion. Outer diameter of second roll is equal to 2/5D of diameter of front drum of feeding conveyor, and outer diameter of third roll is equal to 5/9D of diameter of front drum of feeding conveyor. Distance alpha between tangent point K of first roll, surface of undercut soil layer and rear edge of share is less than two maximal diameters do max of onion. Rear beater is made in the form of rod-type rotor, with distance between rods being equal to minimal diameter do min of onion. Outer diameter of rear beater is equal to 3/4D of diameter of front drum of feeding conveyor. Distances between rolls of picking-up working tool, rear beater and feeding conveyor are equal to minimal diameter do min of onion. Line making continuation of working surface of feeding conveyor is extending tangentially to working surface of rolls of picking-up working tool and rear beater. ^ EFFECT: improved separating capability of working tool, improved quality of seeding material, reduced damage to onion and reduced costs of postharvest additional processing of product and increased efficiency. ^ 1 dwg |
