Transmission system of straw smashing and returning machine

Abstract

The invention discloses a transmission system of a straw smashing and returning machine. The transmission system comprises a first cutter, a second cutter, a straw smashing and returning machine framesupported by supporting wheels, a transmission mechanism and a tractor. The first cutter and a second cutter in a diameter smaller than that of the first cutter are mounted in the straw smashing andreturning machine frame, and the transmission mechanism is in transmission connection with a power output shaft of the tractor to drive the first cutter and the second cutter to rotate. The transmission mechanism comprises a first cutter transmission portion, a second cutter transmission portion and a coupler. The first cutter transmission portion is in transmission connection with the first cutter, and the second cutter transmission portion is in transmission connection with the second cutter. The first cutter transmission portion and the second cutter transmission portion are connected intoa whole in an L shape through the coupler. The cutters in different sizes are driven by the different transmission portions which are connected into a whole in the L shape, only one power input provides driving power, and the transmission system is applicable to a machine-harvested cotton one-film six-row planting mode and reliable and stable in transmission.

Description

technical field [0001] The invention relates to the technical field of agricultural equipment, in particular to a transmission system of a straw crushing and returning machine. Background technique [0002] Straw crushing and returning to the field can improve the soil structure of the farmland, increase the content of soil organic matter, and prevent soil compaction. It is an important process for cotton planting operations. The straw crushing and returning machine has the advantages of high work efficiency and low energy consumption, and has been widely used in the process of straw crushing and returning to the field. The existing straw returning machine has two cutting discs, the purpose of which is to increase the cutting width and improve the working efficiency. [0003] However, the two cutterheads of the existing straw returning machine are symmetrically distributed, and the structure and size of the two cutterheads are the same. This structure cannot meet the needs ...

AI Technical Summary

Problems solved by technology

[0003] However, the two cutterheads of the existing straw returning machine are symmetrically distributed, and the structure and size of the two cutterheads are the same. This structure cannot meet the needs of straw crushing and returning to the field in the current machine-picked cotton planting mode of 66+10cm. Because the two rows in the middle are just in the middle of the two cutter heads and cannot be crushed, and the two rows of straw on both sides are respectively on the outside of the two cutter heads, the crushing effect is not good. The characteristic of the transmission mechanism of this structure is that the transmission shaft is from the middle to the The two ends are separated (like a T shape), and the two cutterheads are driven to rotate. The transmission system is symmetrically distributed. Correspondingly, this transmission mechanism is not suitable for the planting mode of machine-picked cotton with one film and six rows.

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