Bidirectional clamping and bending chain conveyor for combine harvester

Abstract

The invention discloses a bidirectional clamping and bending chain conveyor for a combine harvester. The chain conveyor comprises a threshing cylinder bidirectional clamping chain, a standing grain lifting guide strip and a bending guider, wherein the bending guider is arranged on the outer side of the threshing cylinder bidirectional clamping chain close to an outer chain plate on one side of a standing grain lifting finger. The bending guider comprises a bending guide plate and a bending guide strip mounting plate, wherein the bending guide plate is horizontally arranged below a standing grain lifting plate and positioned right ahead and above a chain guard of the threshing cylinder bidirectional clamping chain, and the bending guide strip mounting plate is fixed onto the bending guide plate. One end of the guide strip is connected onto the bending guide strip mounting plate, and the other end of the guide strip extends to the lower side of the standing grain lifting plate. After a crop is fixedly clamped in the vertical direction of the crop, the crop can be accurately and rapidly bent by the aid of functions of the threshing cylinder bidirectional clamping chain and a bending function position of the bending guider, the direction of a spike of the crop is changed from the vertical state, the spike of the crop smoothly and timely enters a threshing cylinder for threshing, and working process is greatly shortened.

Description

technical field [0001] The invention relates to a half-feed combine harvester, in particular to a bidirectional clamping and bending chain conveying mechanism used on the half-feed combine harvester. Background technique [0002] The semi-feeding combine harvester adopts a straight grain-feeding mechanism, and the roller chain drives the grain-feeding finger to cut crops by the motion of the grain-feeding movement that runs obliquely from bottom to top. In addition to the grain-feeding chain, there is also a transfer conveyor chain , to change the crops from vertical to horizontal. On the way, there are ear combing and holding finger chains, threshing clamping conveyor chains, and finally grass discharge chains. In this process, not only the distance is long, but also the structure is complex, the energy consumption is high, and the quality is heavy due to the many transmission chains. [0003] In an existing rice-wheat combine harvester, the conveying chain and the pressur...

AI Technical Summary

Problems solved by technology

In this process, not only the distance is long, but also because of the many transmission chains, the structure is complex, the energy consumption is high, and the quality is heavy.

[0003] In an existing rice-wheat combine harvester, the conveying chain and the pressure bar are clamped in front of the threshing drum to complete the turning, bending and conveying process of the crops, and the harvested crop stalks are bent and entered into the threshing drum by relying on the backward movement of the threshing point. Clamping and conveying chain, due to the long distance between the holding finger and the chain, the rigidity of the straw is not enough, it cannot be effectively folded, and it is easy to cause the blockage of the entrance of the threshing and pressing grass, so this link cannot meet the requirements of harvesting. The existing clamping The tooth profile of the chain plates on both sides of the conveyor chain has only one-way chain teeth

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