Threshing spike tooth of corn grain harvester

Abstract

The invention belongs to the technical field of agricultural harvesting machines, and relates to a threshing spike tooth of a corn grain harvester. The threshing spike tooth comprises a spike tooth body (1) and a rubber sleeve (2). The spike tooth body (1) is a platy tooth with a certain thickness, and comprises a working section (4) on the upper side and a fixed section (5) on the lower side. Thefixed section (5) is detachably and fixedly connected to a threshing roller of the corn grain harvester. The thickness end face of the spike tooth body (1) is arranged in the rotating direction of the threshing roller. The thickness end face of one side of the working section (4) of the spike tooth body (1) is a working surface (6), and the working surface (6) is a curved surface. The outer surface of the working section of the spike tooth body (1) is sleeved with the rubber sleeve (2) corresponding to the working section in shape. By means of the threshing spike tooth, corn grain ears can berapidly threshed, the impact of the spike tooth on grains in the threshing process is effectively reduced, and the grain damage rate in the grain harvesting process is reduced.

Description

technical field [0001] The invention belongs to the technical field of agricultural harvesting machinery and relates to a threshing spike for a corn grain harvester. Background technique [0002] Corn harvesting is a key link in corn planting and production, and corn seed harvesting technology can greatly improve the efficiency of corn harvesting, reduce corn production costs and labor intensity. [0003] At present, corn grain harvesters still use traditional threshing spikes. Such as figure 1 As shown, the traditional threshing nail teeth are trapezoidal and flat, and their material is metal rigid material. When threshing corn ears, the impact force on corn kernels is large, which may easily cause corn kernels to break, especially in corn kernels with high moisture content. Under normal circumstances, the breakage rate is higher, which affects the overall harvesting effect of the corn grain harvester; when the traditional threshing spikes are threshing, the contact with ...

AI Technical Summary

Problems solved by technology

like figure 1 As shown, the traditional threshing nail teeth are trapezoidal and flat, and their material is metal rigid material. When threshing corn ears, the impact force on corn kernels is large, which may easily cause corn kernels to break, especially in corn kernels with high moisture content. Under normal circumstances, the damage rate is higher, which affects the overall harvesting effect of the corn grain harvester; when the traditional threshing spikes are threshing, the contact with the corn ear is a line, which increases the pressure on the corn ear and easily damages the corn grain.

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