Agricultural plant protection ultra-deep rotary tillage cutter based on soil disturbance

By optimizing the design of rotary tillage blades, using cemented carbide materials and a specific layout of rotary tillage teeth, the problems of large soil disturbance and high energy consumption of traditional rotary tillage equipment have been solved, achieving efficient and environmentally friendly soil tillage, and reducing energy consumption and production costs.

CN224218828UActive Publication Date: 2026-05-12XINJIANG UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG UNIVERSITY
Filing Date
2025-05-19
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Traditional rotary tillage equipment causes significant soil disturbance during operation, damaging soil structure, affecting crop root development, and is energy-intensive. It is also difficult to effectively break up the topsoil, increasing agricultural production costs.

Method used

The design incorporates ultra-deep rotary tillage blades for agricultural plant protection based on soil disturbance. The tillage teeth are made of cemented carbide material, with an arc-shaped cutting edge within the range of 30-60°. The tillage teeth are distributed along an equidistant spiral, with the angle between adjacent teeth being consistent. A pair of staggered rotary tillage blades rotate synchronously, reducing soil disturbance and improving soil fragmentation.

Benefits of technology

It reduces damage to soil structure, improves soil aeration and water permeability, reduces energy consumption, improves operational efficiency and quality, and lowers agricultural production costs.

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Abstract

The utility model discloses an agricultural plant protection ultra-deep rotary tillage cutter based on soil disturbance, and relates to the technical field of agricultural machinery. The rotary tillage device comprises a central shaft, a plurality of rotary tillage teeth distributed around the central shaft and a connecting piece used for fixing the rotary tillage teeth and the central shaft, the central shaft is of a hollow structure, one end of the central shaft is provided with a coupler interface, and the other end of the central shaft is connected with a power transmission device through a bearing; the tail ends of main bodies of the rotary tillage teeth are fixed in the connecting piece in a bolt connection mode, the other ends of the rotary tillage teeth form cutting blade faces, the rotary tillage teeth are spirally arranged along the central shaft, and a specific distance is kept between every two adjacent rotary tillage teeth; the connecting pieces are evenly distributed on the peripheral side of the central shaft, and each connecting piece is provided with a hole used for installing a bolt. According to the utility model, the layout of the rotary tillage teeth and the angle range of the cutting edge surface are optimized, so that the disturbance quantity to the surface soil in the vertical direction is reduced, the damage to the soil structure in the operation process is reduced, the soil health is favorably kept, and the development of crop root systems is facilitated.
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Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to an ultra-deep rotary tillage blade for agricultural plant protection based on soil disturbance. Background Technology

[0002] Existing agricultural machinery is mostly fuel-powered, resulting in high energy consumption, high costs, and significant environmental pollution. Furthermore, it is unsuitable for agricultural operations in the hilly areas of southern China. The industry's pain points are concentrated in low levels of automation, severe environmental pollution, and the inability of large machinery to handle small-scale and complex terrain. Developing miniaturized, green, and intelligent agricultural robots has become an urgent need for the industry. This represents not only technological innovation but also a profound transformation of traditional agricultural practices. Specifically, in the field of soil cultivation, traditional rotary tillage tools have some significant problems in practical use:

[0003] Traditional rotary tillers often cause significant soil disturbance during operation, damaging soil structure, affecting crop root development, and failing to effectively break up the topsoil, thus hindering soil aeration and water retention. Due to their flawed design, traditional rotary tillers consume a large amount of energy during operation, increasing agricultural production costs.

[0004] To address these issues, we have developed an ultra-deep rotary tillage tool for agricultural plant protection based on soil disturbance. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model relates to an ultra-deep rotary tillage blade for agricultural plant protection based on soil disturbance. It includes a central shaft, multiple rotary tillage teeth distributed around the central shaft, and connecting parts for fixing the rotary tillage teeth to the central shaft. The central shaft has a hollow structure, with a coupling interface at one end and a power transmission device connected to the other end via a bearing. The main body of each rotary tillage tooth is fixed to the connecting part by bolts, and its other end forms a cutting edge. The rotary tillage teeth are arranged spirally along the central shaft, with a specific distance maintained between adjacent rotary tillage teeth. The connecting parts are evenly distributed around the central shaft, and each connecting part has a hole for bolt installation to fix the rotary tillage teeth.

[0007] The present invention is further configured such that the cutting edge of the rotary tiller is an arc-shaped structure, and the angle of the cutting edge is between 30-60°.

[0008] The present invention is further configured such that the cutting edge of the rotary tiller is made of cemented carbide material.

[0009] The present invention is further configured such that the number of rotary tillage teeth is not less than six, and they are distributed on the surface of the central shaft in an equidistant spiral pattern, with the angle difference between adjacent rotary tillage teeth remaining consistent.

[0010] The present invention is further configured such that the rotary teeth of the pair of ultra-deep rotary tillage tools are staggered, and the pair of ultra-deep rotary tillage tools rotate synchronously.

[0011] When applied to ultra-deep rotary tillage operations, soil disturbance-based agricultural plant protection ultra-deep rotary tillage blades reduce soil disturbance and increase the fragmentation of the topsoil.

[0012] This utility model has the following beneficial effects:

[0013] 1. This utility model optimizes the layout of the rotary tillage teeth and the angle range of the cutting edge, thereby reducing the vertical disturbance to the surface soil. This not only reduces damage to the soil structure during operation but also helps maintain soil health and promotes crop root development. The rotary tillage teeth are distributed on the central axis in an equidistant spiral pattern, and the angle difference between adjacent rotary tillage teeth remains consistent, ensuring continuity and stability during operation, thus improving overall work efficiency. The rotary tillage teeth in a pair of ultra-deep rotary tillage blades are staggered and rotate synchronously, further enhancing the soil turning effect, reducing soil resistance, and improving operation speed and quality.

[0014] 2. The cutting edge made of hard alloy material and the reasonable distribution of rotary tillage teeth in this utility model reduce the median mass of the topsoil by 42%, which means that the soil is more finely broken, increases soil aeration and water permeability, and creates better conditions for crop growth. By reducing soil resistance and optimizing the structure and layout of the rotary tillage teeth 300, the power consumption ratio is reduced by 11.67%, which means that less energy is required to complete the same amount of work, improving energy efficiency and reducing agricultural production costs.

[0015] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0018] Figure 2 This is a front view of the overall structure of this utility model.

[0019] Figure 3 This is a top view of the overall structure of this utility model.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 100, Central shaft; 200, Connector; 300, Rotary tillage teeth; 301, Main body; 302, Cutting blade. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figure 1-3 This utility model relates to an ultra-deep rotary tillage blade for agricultural plant protection based on soil disturbance. It includes a central shaft 100, multiple rotary tillage teeth 300 distributed around the central shaft 100, and connecting pieces 200 for fixing the rotary tillage teeth 300 to the central shaft 100. The central shaft 100 has a hollow structure, with a coupling interface at one end and a power transmission device connected to the other end via a bearing. The main body 301 of each rotary tillage tooth 300 is fixed to the connecting piece 200 by bolts, and its other end forms a cutting edge 302. The rotary tillage teeth 300 are arranged spirally along the central shaft 100, with a specific distance maintained between adjacent rotary tillage teeth 300. The connecting pieces 200 are evenly distributed around the central shaft 100, and each connecting piece 200 has holes for bolt installation to fix the rotary tillage teeth 300.

[0025] Specifically, the cutting edge 302 of the rotary tiller 300 has an arc-shaped structure, and the angle of the cutting edge 302 is between 30-60°. The cutting edge 302 of the rotary tiller 300 is made of cemented carbide material. There are no fewer than six rotary tiller teeth 300, which are distributed on the surface of the central shaft 100 in an equidistant spiral pattern. The angle difference between adjacent rotary tiller teeth 300 is kept consistent, ensuring the continuity and stability of operation, thereby improving the overall work efficiency. Furthermore, due to the use of the cutting edge 302 made of cemented carbide material and the reasonable layout, the median mass of the topsoil is reduced by 42%, which means that the soil is more fragmented, which is conducive to crop growth. The vertical disturbance to the topsoil is reduced by 67%, effectively reducing the damage to the soil structure during operation. The power consumption amplitude ratio is reduced by 11.67%, indicating that less energy is required to complete the same amount of work, thus improving energy utilization efficiency. This data was obtained through actual experiments, and the specific experimental process will not be described in detail here.

[0026] Furthermore, the rotary teeth 300 in the pair of ultra-deep rotary tillage blades are staggered, and the pair of ultra-deep rotary tillage blades rotate synchronously, which can more effectively till the soil, reduce soil resistance, and increase soil aeration and water permeability.

[0027] The soil disturbance-based ultra-deep rotary tillage blade proposed in this embodiment reduces soil disturbance and improves the fineness of topsoil during ultra-deep rotary tillage operations. During use, the ultra-deep rotary tillage blade of this technical solution connects to a power source via a coupling interface at one end of the central shaft 100, and is connected to a power transmission device via a bearing at the other end, achieving rotational motion. Multiple tillage teeth 300, distributed around the central shaft 100, are spirally arranged and equidistantly distributed on the surface of the central shaft 100. Adjacent tillage teeth 300 maintain a specific spacing and consistent angle difference, ensuring continuity and stability during operation, thereby improving overall work efficiency. The cutting edge 302 of the tillage teeth 300 is made of hard alloy material and designed with an arc structure, with an angle range between 30-60°. This special design not only improves the strength and wear resistance of the tillage teeth 300, but also reduces the median mass of the topsoil by 42%, effectively increasing soil fineness and benefiting crop growth. Simultaneously, the vertical disturbance to the topsoil is reduced by 67%, minimizing damage to the soil structure. Furthermore, the staggered arrangement of the rotary teeth 300 in the pair of ultra-deep rotary tillers, rotating synchronously, enables more effective soil tillage, reduces soil resistance, and increases soil aeration and water permeability. By optimizing the number, layout, and material selection of the rotary teeth 300, this ultra-deep rotary tiller achieves reduced power consumption, with a power consumption ratio reduced by 11.67%. This results in lower energy consumption for the same workload, improving energy efficiency. These combined characteristics make this rotary tiller a highly efficient and environmentally friendly agricultural plant protection tool.

[0028] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0029] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. An ultra-deep rotary tillage blade for agricultural plant protection based on soil disturbance, comprising a central shaft (100), a plurality of rotary tillage teeth (300) distributed around the central shaft (100), and a connector (200) for fixing the rotary tillage teeth (300) to the central shaft (100), characterized in that: The central shaft (100) has a hollow structure, with a coupling interface at one end and a power transmission device connected to the other end via a bearing; the main body (301) of the rotary tiller (300) is fixed to the connector (200) by bolt connection at the end, and the other end forms a cutting edge (302); the rotary tiller (300) is arranged in a spiral along the central shaft (100), and a specific distance is maintained between adjacent rotary tiller (300); the connector (200) is evenly distributed around the central shaft (100), and each connector (200) is provided with a hole for bolt installation to fix the rotary tiller (300).

2. The agricultural plant protection ultra-deep rotary tillage blade based on soil disturbance according to claim 1, characterized in that, The cutting edge (302) of the rotary tiller (300) has an arc-shaped structure, and the angle of the cutting edge (302) is between 30-60°.

3. The agricultural plant protection ultra-deep rotary tillage blade based on soil disturbance according to claim 1, characterized in that, The cutting edge (302) of the rotary tiller tooth (300) is made of cemented carbide material.

4. The agricultural plant protection ultra-deep rotary tillage blade based on soil disturbance according to claim 1, characterized in that, The number of rotary tillage teeth (300) is no less than six, and they are distributed on the surface of the central shaft (100) in an equidistant spiral pattern, with the angle difference between adjacent rotary tillage teeth (300) remaining consistent.

5. The agricultural plant protection ultra-deep rotary tillage blade based on soil disturbance according to claim 1, characterized in that, The rotary teeth (300) in a pair of ultra-deep rotary tillage blades are staggered, and the pair of ultra-deep rotary tillage blades rotate synchronously.