Flexible threshing cylinder and thresher provided with same

Abstract

The invention discloses a flexible threshing cylinder and a thresher. The flexible threshing cylinder is arranged in the corn thresher and used for threshing corn cobs and comprises a leading-in conical barrel, a threshing cylinder and an impurity discharging cylinder, wherein the threshing cylinder is arranged between the leading-in conical barrel and the impurity discharging cylinder, and two ends of the threshing cylinder are respectively and integrally connected with the leading-in conical barrel and the impurity discharging cylinder; a plurality of flat-head flexible threshing tooth assemblies are arranged on the outer surface of the front section of the threshing cylinder, and a plurality of round-head flexible threshing tooth assemblies are arranged on the outer surface of the rearsection of the threshing cylinder. The contact between corn ears and the flat-head flexible threshing tooth assemblies and the round-head flexible threshing tooth assemblies is flexible contact ratherthan rigid contact, so that the damage rate of corn grains is reduced, and the corn production quality is improved; meanwhile, the flat-head flexible threshing tooth assemblies can damage the 'circulating force ring' of corns to the maximum extent, subsequent threshing is facilitated, and the round-head flexible threshing tooth assemblies can reduce the breakage rate of grains to the maximum extent and improve the quality of the grains.

Description

technical field [0001] The invention relates to the technical field of crop threshing devices, in particular to a flexible threshing drum and a threshing machine with the same. Background technique [0002] Corn threshing is one of the most important steps in the corn harvesting process. The quality of threshing has an important impact on the harvest quality and safe storage of corn. At present, most corn harvesters use nail teeth, plate teeth or a combination of threshing methods. For example, a corn thresher (201410202054.6) published in a Chinese invention patent uses multiple rows of nail teeth to complete threshing, although it has a high cleaning rate. However, due to the rigid contact between the threshing element and the corn ear to complete the threshing operation, the problem of corn kernel damage is brought about, which is not conducive to the later storage of corn; in order to avoid rigid threshing between the ear and the threshing element when there are too many...

AI Technical Summary

Problems solved by technology

At present, most corn harvesters use nail teeth, plate teeth or a combination of threshing methods. For example, a corn thresher (201410202054.6) published in a Chinese invention patent uses multiple rows of nail teeth to complete threshing, although it has a high cleaning rate. However, due to the rigid contact between the threshing element and the corn ear to complete the threshing operation, the problem of corn kernel damage is brought about, which is not conducive to the later storage of corn; in order to avoid rigid threshing between the ear and the threshing element when there are too many ears, some threshing machines use One-by-one threshing, such as a corn thresher (201610124683.0) published by a Chinese patent, sends corn into the threshing area one by one. Although the damage to the grains is reduced to a certain extent, the operating efficiency is very low

Images