Multi-wheel group crawler root cutting device for grazing degraded Leymus chinensis in typical grassland areas

Abstract

The invention discloses a multi-wheel set crawler type root cutting device for grazing and degraded Leymus chinensis grassland in a typical grassland area. There is a plug-in cutter that reciprocates along the vertical direction, so that the root cutting operation can not be performed along the direction of travel, and the normal travel of the device will not be delayed. The crawler belt laid on the ground between the front and rear two large walking wheels is stationary relative to the ground, and the plug-in cutter is installed on the crawler belt, so when the device moves forward as a whole, the plug-in cutter can It is stationary relative to the ground and performs root cutting operations. In addition, there are load-bearing small wheels on the crawler belt, which can help to flatten the road surface, ensure the smoothness of the crawler track, and ensure the smooth operation of the cutting tool.

Description

technical field [0001] The invention belongs to the technical field of grassland ecological management and restoration, and in particular relates to a multi-wheel crawler-type root-cutting device for grazing degraded Leymus chinensis grasslands in typical grassland areas. Background technique [0002] my country is rich in grassland resources, with nearly 400 million square hectares of various natural grasslands, accounting for 41.7% of the country's land area, 3.2 times and 2.5 times the area of ​​cultivated land and forest area respectively. The first place in land resources. [0003] However, as of 2007, although protection measures such as grazing prohibition, rest grazing and zoned rotational grazing have been implemented on about 20% of the usable grasslands in the country, due to climate warming, rainfall reduction, long-term overload grazing and human damage, Leading to the serious phenomenon of "three modernizations" (degradation, desertification, and salinization) ...

AI Technical Summary

Problems solved by technology

[0005] In the prior art, in order to complete this work, a rotary cutter is generally used, the direction of rotation is consistent with the direction of travel of locomotives such as tractors, and finally several parallel traces are left on the grass, such as the application number "200910137581.2" A Chinese patent for "a method for improving hardened and degraded grassland and special spring teeth", such as a Chinese patent with the application number "201110353361.0" titled "a compound improvement method for degraded grassland and a special grassland working machine", and another example The application number is " 201210581050.4 " and the name is called the Chinese patent etc. of " grassland root-cutting, fertilization, supplementary sowing and replanting operation machinery"; the schemes recorded in these prior art documents, because the cutter is rotating, in the actual working process, or more At least some soil will be brought out. If it encounters some special geological areas, it will also lead to the phenomenon of overturning and throwing soil, which will greatly disturb the soil of the grassland and easily cause damage to the grassland vegetation and desertification of the grassland soil;

[0006] In addition, according to the records of these prior art solutions, during one stroke of the cutting machine, the cutting marks of root cutting can only extend along one direction, and they are all parallel to each other, and there cannot be cutting marks in multiple directions. needs improvement

[0007] In the applicant's prior patent application No. 2017109652502, the patent document titled Root Cutting Device for Grazing Degraded Leymus Grassland in Typical Grassland Areas describes a device capable of cutting roots horizontally, which was found in practical applications. There are still some defects in the device. Since the crawler is a rubber crawler, its own weight is lower than that of a metal crawler. The crawler cannot flatten the uneven road surface, so that the bottom surface of the crawler track is not flat on the uneven road surface. Of course, the self-propelled cutting part on it cannot walk on a flat track, which affects the walking speed of the self-propelled cutting part, and also makes the feed direction of the cutter deviate from the angle, so the final cutting effect is not ideal

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