Affiliation:
1. Heilongjiang Academy of Agricultural Machinery Engineering, Harbin 150000, China
Abstract
Aiming at the problem of high cob loss in non-opposed row harvesting of 4YZ-6 fresh corn harvester, a front-end part adapted to the grain splitter of this model was designed. The structure of the front-end part was elaborated, the sliding conditions of the stalks under the action of the grain splitter were studied, the forces between the stalks and the front-end part were theoretically analyzed, and the operating effect of the front-end part was verified through field tests. The tests show that the expected operating effect is optimal when the inclination of the grain separator is 27.7°, the clamping angle of the grain splitter is 31°, the stubble height is 270 mm, and the front-end guards half width is 3.8 mm. The verification test for this parameter combination yielded a breakage rate of 8.71% and a loss rate of 9.47%, which were basically consistent with the expected values. The design of this front-end component of the grain splitter provides an effective means to reduce the loss of ears in the harvesting process of fresh corn.
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