Threshing chamber of combined harvester

Abstract

A threshing chamber (3) of a combined harvester comprises a top cover (33), a threshing roller (32), a separating screen (34) and a threshing machine rack (36), wherein the threshing machine rack (36) comprises an upper frame (361) and a feed port (362), the upper frame (361) comprises a left wall board (361a), a right wall board (361b) and a front wall board (361c), the feed port (362) is in an orbicular sky and rectangular earth shape, and is erected on the tops of the left wall board (361a) and the right wall board (361b) of the upper frame (361), one end of the rectangular earth is bordered with the front wall board (361c), one end of the orbicular sky is bordered with the separating screen (34), and is fixed by bolts or is directly welded on the upper frame (361) of the threshing machine rack (36), and the feed port (362) is divided into a left half feed port (362a) and a right half feed port (362b), or is divided into a left side wall (363a), a right side wall (363b) and a bottom wall (363d) for processing and manufacturing. The threshing chamber of the combined harvester is convenient and fast in processing, simple in assembly and low in manufacturing cost.

Description

technical field [0001] The invention relates to a threshing chamber of a combine harvester. Background technique [0002] The threshing chamber is widely used in combine harvesters, and it is used to accommodate the threshing drum during the operation of the combine harvester to thresh the crops. The feeding port is a component that guides the harvested crops from the conveying chute into the threshing chamber smoothly and evenly for threshing. In the threshing chamber of the prior art, an integrated feeding port is often used. This structure requires high processing precision, is not easy to assemble, and has high maintenance and replacement costs. In addition, the patent document CN203261795U also discloses a feeding inlet structure, which divides the feeding inlet into left and right side walls and inlet guiding bottom wall, and divides each part into two or three parts, which not only increases the production cost, but also The assembly becomes complicated and the asse...

AI Technical Summary

Problems solved by technology

In the threshing chamber of the prior art, an integrated feeding port is often used. This structure requires high machining accuracy, is not easy to assemble, and costs high for maintenance and replacement.

In addition, the patent document CN203261795U also discloses a feeding inlet structure, which divides the feeding inlet into left and right side walls and inlet guiding bottom wall, and divides each part into two or three parts, which not only increases the production cost, but also Complicate assembly and increase assembly error

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