Floating impurity removal device applicable to position of secondary stem pulling on corn harvester

Abstract

The invention relates to a floating impurity removal device applicable to position of secondary stem pulling on a corn harvester. The floating impurity removal device applicable to the position of secondary stem pulling on the corn harvester comprises a floating impurity removal roller, and a fixed impurity removal roller; the fixed impurity removal roller is supported between two side plates of astalk cleaning-up bracket; a power input wheel is mounted at one end of the fixed impurity removal roller, and a first sprocket wheel is mounted at the other end of the fixed impurity removal roller;two ends of the floating impurity removal roller are connected with the two side plates of the stalk cleaning-up bracket, respectively by a group of movable impurity removal assembly components; eachof the movable impurity removal assembly components comprises a fixed guiding seat and a movable mounting seat, wherein the fixed guiding seat is fixed on a side plate of the stalk cleaning-up bracket; elastic connecting structures, as well as upper limiting structures and lower limiting structures, are connected between the movable mounting seats and the fixed guiding seats; the floating impurity removal roller is supported on the movable mounting seats on the two sides; a second sprocket wheel is mounted at one end, on the same side as the first sprocket wheel, of the floating impurity removal roller; a third sprocket wheel and a tensioning sprocket wheel are further provided on the side; and a closed transmission chain hangs around between the four sprocket wheels. The floating impurity removal device applicable to the position of secondary stem pulling on the corn harvester realizes automatic adjustment of gaps of the impurity removal rollers following harvest situation.

Description

technical field [0001] The invention belongs to the technical field of corn harvesters, and in particular relates to a floating miscellaneous removal device on the corn harvester which is suitable for the secondary stem pulling position. Background technique [0002] At present, the position between the elevator and the weeding drum on the corn harvester is provided with a stalk removal frame assembly, and the stalk removal frame assembly is located above the peeler and belongs to a part of the elevator assembly. The stalk clearing frame assembly can effectively discharge the stem and the bracts under normal circumstances through the two miscellaneous discharge rollers arranged up and down. However, when harvesting large plots, especially in the middle and later stages of corn machine harvesting, the corn stalks are dry and brittle, and are extremely easy to break, which leads to too many broken stalks at the trash discharge position on the elevator. The miscellaneous effec...

AI Technical Summary

Problems solved by technology

However, when harvesting large plots, especially in the middle and later stages of corn machine harvesting, the corn stalks are dry and brittle, and are extremely easy to break, which leads to too many broken stalks at the trash discharge position on the elevator. Miscellaneous effect is not ideal, easy to block; adverse effects include broken chain, broken shaft, bearing damage, etc.

Images