Straw smashing and returning device

Abstract

The invention discloses a straw smashing and returning device and belongs to the field of agricultural machinery. The straw smashing and returning device comprises a rack, a main straw smashing body,a traveling device, a furrowing device and an earthing compacting device, wherein a main smashing roller is located at the upper right part of a pickup roller; an auxiliary smashing roller is locatedat the upper left part of the main smashing roller; a first straw transfer roller is located among the pickup roller, the main smashing roller and the auxiliary smashing roller; a second straw transfer roller is located on the left side of the auxiliary smashing roller above the main smashing roller; a casing outlet is formed in the lower right side of the main smashing roller. The straw smashingand returning device has the beneficial effects that the auxiliary smashing roller is designed at the upper right corner of the main smashing roller, part of straw is transferred by the two straw transfer rollers to the auxiliary smashing roller for deep smashing, smashing time of the straw from a casing inlet to the casing outlet can be prolonged, so that the straw is smashed sufficiently, and straw formed at the casing outlet is finer and more uniform.

Description

technical field [0001] The invention relates to the field of agricultural machinery, in particular to a straw crushing and returning device. Background technique [0002] Straw returning has many advantages such as improving soil structure, increasing soil organic matter, improving soil fertility, and eliminating air pollution caused by straw burning. It has gradually become popular and produced good economic, ecological and social benefits. [0003] At present, the main method of returning corn stalks to the field in dry farming areas in northern my country is: corn harvesting machinery crushes the stalks and throws them on the surface while harvesting corn ears, and then plows them into the soil with rotary tillage machinery in the later stage, in order to achieve the goal of rotting and decomposing the stalks. Purpose. This is currently the simplest method of returning straw to the field, and it is also the model that is vigorously promoted and used most in various places...

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the problems existing in the corn stalk crushing and returning device in the prior art, such as poor crushing effect, uneven spreading, and inability to complete the crushing and landfilling of corn stalks in one step, the present invention provides a straw crushing and returning device, including a frame , a straw crushing main body, a walking device, a ditching device and a soil suppression device, the frame includes a rectangular parallelepiped frame main body, a front support plate, a rear support and a traction support, and the front support plate is fixedly mounted on the front end of the rectangular parallelepiped frame main body, The rear support is fixedly installed at the rear end of the main body of the cuboid frame, and the traction support includes a first traction rod and two second traction rods located on both sides of the first traction rod; the two second traction rods One end of the rod is fixed on one end of the first draw rod, the other end is fixed on the front support plate, the other end of the first draw rod is fixed on the support rod on the upper side of the main body of the cuboid frame; the straw crushing main body fixedly installed inside the main body of the cuboid frame on the frame, the running device and the ditching device are fixedly installed under the main body of the cuboid frame, and the soil covering suppression device is fixedly installed under the rear bracket; The straw crushing main body includes a shell, a pick-up roller, a main crushing roller, an auxiliary crushing roller, a first straw transfer roller and a second straw transfer roller; and the shell outlet, the pick-up roller, the main crushing roller, the auxiliary crushing roller, the first straw transfer roller and the second straw transfer roller are located inside the shell, and the pick-up roller is installed at the entrance of the shell, The main crushing roller is located at the upper right position of the picking roller, the auxiliary crushing roller is located at the upper left position of the main crushing roller, and the first straw transfer roller is located between the picking roller, the main crushing roller and the auxiliary crushing roller , the second straw transfer roller is located at the left side of the auxiliary crushing roller above the main crushing roller, and the shell outlet is set at the lower right side of the main crushing roller

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