Digging device, capable of automatically adjusting depth, of potato harvester

Abstract

The invention provides a digging device, capable of automatically adjusting depth, of a potato harvester. The digging device is characterized in that two U-shaped side end portions of a connecting bridge of a U-shaped structure are hinged to two connecting pieces through hinge pins IV respectively, the two connecting pieces are fixed at the two ends of a cross beam II and on the inner sides of two connecting arms I, the end portions of two pieces of convex lugs VI are provided with circular holes with the axes parallel to the movement direction of the potato harvester, a rotating shaft I is hinged to the inside of a circular hole in the central point of a U-shaped bottom edge of the connecting bridge, the stretch-end, passing through a cross beam III and a cross beam IV, of a rotating shaft II are installed in circular holes of the U-shaped side end portions of a U-shaped plate, the U-shaped bottom edge of U-shaped plate faces upwards, the corresponding ends of two hydraulic cylinders are hinged to a reinforcing plate through hinge pins V respectively, and the other corresponding ends of the two hydraulic cylinders are hinged to a lifting frame II fixed on the U-shaped side of a U-shaped frame respectively. The device can achieve automatic adjustment of the digging depth at the two sides during potato harvesting, the potato damage ratios is low, the self balancing effect of the whole device is good, and energy saving and consumption reduction are easily achieved.

Description

technical field [0001] The invention provides an excavating device for automatically adjusting the depth of a potato harvester, which is mainly used in the potato harvester. Background technique [0002] At present, domestic potato harvesting has been basically mechanized. The digging depth of the potato harvester is an extremely important technical index. The basis for determining this index is to dig as little soil as possible under the premise of ensuring the yield, so as to ensure that the soil, weeds and Seedlings and vines reach more than 90% to increase the rate of clear potatoes and reduce the rate of damaged potatoes. The depth of excavation depends on the degree of soil compaction of the soil pressure wheel, and at the same time it must match the soil cutting depth of the soil cutting disc. However, at present, when the potato harvester is working in a farmland with a certain inclination angle, the digging depth cannot be automatically adjusted, and often due to ...

AI Technical Summary

Problems solved by technology

However, during the actual field operation on the surface with a certain inclination angle, the potato harvester cannot adjust the excavation depth according to the inclination angle of the ground plane, resulting in unequal excavation depths on both sides, which easily increases the potato damage rate and affects the self-balance of the whole machine

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