Bridge-crossing multi-tangential-flow threshing device of combine harvester

Abstract

The invention relates to a bridge-crossing multi-tangential-flow threshing device of a combine harvester, and belongs to the technical field of agricultural machinery. The device comprises a plant feeding belt arranged at the front end of a bridge-crossing bracket, and the output end of the plant feeding belt is connected with a multi-concave-sieve body formed by a first concave sieve, a second concave sieve and a third concave sieve; a plant feeding roller is arranged above the plant feeding belt; a threaded rod threshing cylinder, a plate type threshing cylinder and a nail tooth threshing cylinder are installed above the first concave sieve, the second concave sieve and the third concave sieve respectively; a grain conveying belt is installed below the multi-concave-sieve body. The threshing device is arranged at the upper part of a bridge-crossing conveying part through tangential flow, so that threshing and conveying are organically combined, spaces are overlapped, the size of the combine harvester can be greatly reduced, and the combine harvester is suitable for small rice field parcels and irregular mountainous regions.

Description

technical field [0001] The invention relates to a harvester component, in particular to a bridge crossing multi-cut flow threshing device for a combine harvester, which belongs to the technical field of agricultural machinery. Background technique [0002] The typical structure of the existing combine harvester for bean crops is known by the Chinese patent literature named "Small Soybean Combine Harvester" with application number 201510505965.0 and "A Self-adaptive Cleaning Crop Harvester" with application number 201910162868.4 public. The basic structure of this type of combine harvester is that the front end of the walking chassis supports the header, and the threshing equipment is placed in the middle and rear. The threshing equipment consists of an axial flow main threshing drum, a concave screen located under the axial flow main The vibrating screen is composed of a vibrating screen, and the header and the threshing equipment are connected by a bridge conveying mechani...

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned existing combine harvesters for bean crops are difficult to use in hilly and mountainous areas where fields are generally small and irregular due to their large volume.

As far as the applicant knows, manual harvesting is still necessary in areas such as hilly and mountainous areas, which is costly and labor-intensive

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