Land ploughing device

By employing a buffer spring and quick-release interface structure in the land tillage device, the problem of blade damage when colliding with hard objects is solved, enabling convenient disassembly and replacement of the blades, improving service life and reducing maintenance costs.

CN224124586UActive Publication Date: 2026-04-17SHAANXI AGRICULTURAL DEVELOPMENT GROUP CO LTD SHANGLUO BRANCH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHAANXI AGRICULTURAL DEVELOPMENT GROUP CO LTD SHANGLUO BRANCH
Filing Date
2025-05-22
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

Existing tillage blades are easily damaged when they encounter hard objects, and replacement and maintenance are inconvenient, resulting in short service life and high costs.

Method used

A land tillage device was designed, which adopts a buffer spring and quick-release interface structure. When the blade encounters a hard object, it can rebound to avoid collision damage. The blade module can be quickly replaced and is connected to the tiller through bearing holes and bolt holes, realizing convenient assembly and disassembly.

Benefits of technology

It effectively avoids damage from tool collisions, extends service life, reduces labor and time costs, and enables convenient maintenance and replacement.

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Abstract

The utility model relates to a land plowing device, which belongs to the technical field of plowing cutters and comprises a plowing cutter head and plowing cutters, six groups of cutter supporting blocks are uniformly arranged on the plowing cutter head, each group of cutter supporting blocks is provided with a connecting cylinder, each group of connecting cylinders are rotatably connected with the plowing cutters, and the plowing cutters are arranged on the connecting cylinders. Each group of connecting cylinders is in threaded connection with a positioning screw, mounting frames are uniformly and fixedly mounted on the outer wall of the ploughing cutter head, each group of mounting frames is rotationally connected with a positioning cylinder, each group of positioning cylinders is fixedly provided with a buffer spring, one end of each group of buffer spring is fixedly connected with a sliding block, and one end of each group of sliding block is provided with a supporting rod. According to the land ploughing device, obstacle avoidance can be carried out on hard objects, the blade can rebound when encountering hard objects such as stones and tree roots, collision damage is avoided, the service life can be effectively prolonged, the blade module adopts a quick release connector, replacement of a single blade only needs several minutes, the whole machine does not need to be disassembled, and therefore labor cost and time cost can be effectively reduced.
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Description

Technical Field

[0001] This utility model relates to the field of tillage blades, and in particular to a land tillage device. Background Technology

[0002] Tillage blades are the core tools in agricultural machinery used for tilling the soil. By cutting, breaking, and turning over the soil layers, they improve the soil structure and create suitable conditions for crop growth.

[0003] In practical use, mechanical force is used to break up the compacted soil layer, turn the bottom soil to the surface, mix in organic matter, remove weeds and pest residues, loosen the soil, improve aeration, retain water and fertilizer, and provide a flat seedbed for sowing or fertilization.

[0004] Existing tillage blades are usually fixed structures, and damage typically occurs when they collide with hard objects during tillage. To address this, a new tillage device is proposed that can avoid hard objects. When the blades encounter hard objects such as stones or tree roots, they can spring back to avoid collision damage, thereby effectively improving service life. The blade module uses a quick-release interface, and replacing a single blade only takes a few minutes without disassembling the entire machine, thus effectively reducing labor and time costs. Utility Model Content

[0005] This utility model provides a land tillage device that solves the problems mentioned in the background art, effectively avoids collision damage and is easy to disassemble and maintain, making it more convenient to use.

[0006] The present invention provides the following solution to the above-mentioned technical problems: A land tillage device includes a tillage disc and tillage blades. The tillage disc is uniformly provided with blade supports, and there are six sets of blade supports. Each set of blade supports is equipped with a connecting cylinder, and each set of connecting cylinders is rotatably connected to the tillage blades. Each set of connecting cylinders is threaded with a positioning screw. Mounting frames are uniformly fixedly installed on the outer wall of the tillage disc. Each set of mounting frames is rotatably connected with a positioning cylinder, and each set of positioning cylinders is fixedly installed with a buffer spring. One end of each set of buffer springs is fixedly connected with a slider, one end of each set of sliders is equipped with a support rod, one end of each set of support rods is rotatably connected with a receiving frame, and one end of each set of receiving frames is fixedly connected with a blade clamp.

[0007] Based on the above technical solution, the present invention can be further improved as follows.

[0008] Furthermore, protective pads are fitted on both sides of the outer wall of the connecting cylinder near the tillage blades, and the protective pads are slidably connected to the tillage blades.

[0009] Furthermore, each of the positioning cylinders has a sliding hole on its outer wall that is adapted to the support rod, and the inner wall of the sliding hole is slidably connected to the support rod.

[0010] Furthermore, the tool clamp is provided with a slot adapted to the tillage tool.

[0011] Furthermore, a bearing hole is fixedly installed in the middle of the outer wall of the tillage disc, and bolt holes are evenly opened at the edge of the outer wall of the tillage disc near the middle position.

[0012] Furthermore, each set of the tool holder blocks has a threaded groove near the connecting cylinder.

[0013] Furthermore, each set of tillage blades has a through hole on its outer wall that is compatible with the connecting cylinder, and the inner wall of the through hole is slidably connected to the connecting cylinder.

[0014] Furthermore, the inner walls of the positioning cylinders on both sides are slidably connected to the slider.

[0015] This utility model provides a land tillage device, which has the following advantages:

[0016] 1. This type of land tillage device can avoid hard objects. When the blades encounter hard objects such as stones and tree roots, they can bounce back to avoid collision damage, thereby effectively improving service life. The blade module adopts a quick-release interface, and it only takes a few minutes to replace a single blade without disassembling the whole machine, thus effectively reducing labor and time costs.

[0017] 2. The tillage disc can be connected to the drive end of the land tiller through bearing holes and bolt holes. When the land tiller drives the tillage disc to rotate, the tillage blades can rotate on the outer wall of the tillage disc to perform land tillage work.

[0018] 3. After the tillage blades are hit by a hard object, the tillage blades can rotate on the outer wall of the tillage disc. The blade clamp can drive the slider at the support rod to slide inside the positioning cylinder, thereby compressing the buffer spring to relieve the vibration, prevent the land tiller from slipping out of your hands and reduce the damage caused by hard impacts from the blades.

[0019] 4. After rotating the positioning screw to remove it from the threaded groove, the tillage blade and connecting cylinder can be replaced.

[0020] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it according to the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. The specific implementation methods of this utility model are given in detail in the following embodiments and their accompanying drawings. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0022] Figure 1 A front view of a land tillage device provided in an embodiment of this utility model;

[0023] Figure 2 This is a schematic diagram of the structure of a land tillage device according to an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of a land tillage device in a retracted state according to an embodiment of the present invention;

[0025] Figure 4 This is a structural diagram showing the installation position of the tillage blades in a land tillage device according to an embodiment of the present invention.

[0026] The attached diagram lists the components represented by each number as follows:

[0027] 1. Tillering blade; 2. Blade support block; 3. Connecting cylinder; 4. Tillering blade; 5. Positioning screw; 6. Protective pad; 7. Mounting bracket; 8. Positioning cylinder; 9. Buffer spring; 10. Slider; 11. Support rod; 12. Receiving frame; 13. Blade clamp; 14. Bearing hole; 15. Bolt hole; 16. Threaded groove. Detailed Implementation

[0028] The following is in conjunction with the appendix Figure 1-4 The principles and features of this utility model are described below. The examples given are for illustrative purposes only and are not intended to limit the scope of this utility model. The utility model is described more specifically in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of this utility model will become clearer from the following description and claims. It should be noted that the drawings are in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of this utility model.

[0029] It should be noted that when a component is described as "fixed to" another component, it can be directly on the other component or may have a component in between. When a component is considered "connected to" another component, it can be directly connected to the other component or may have a component in between. When a component is considered "set on" another component, it can be directly set on the other component or may have a component in between. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0031] like Figure 1-4 As shown, a land tillage device includes a tillage disc 1 and tillage blades 4. The tillage disc 1 is evenly provided with blade support blocks 2, and there are six sets of blade support blocks 2. Each set of blade support blocks 2 is equipped with a connecting cylinder 3. Each set of connecting cylinders 3 is rotatably connected to the tillage blades 4. Each set of connecting cylinders 3 is threadedly connected with a positioning screw 5. The outer wall of the tillage disc 1 is evenly fixedly equipped with mounting frames 7. Each set of mounting frames 7 is rotatably connected with a positioning cylinder 8. Each set of positioning cylinders 8 is fixedly equipped with a buffer spring 9. One end of each set of buffer springs 9 is fixedly connected with a slider 10. One end of each set of sliders 10 is equipped with a support rod 11. One end of each set of support rods 11 is rotatably connected with a receiving frame 12. One end of each set of receiving frames 12 is fixedly connected with a blade clamping plate 13.

[0032] Preferably, protective pads 6 are fitted on both sides of the outer wall of the connecting cylinder 3 near the tillage blades 4, and the protective pads 6 are slidably connected to the tillage blades 4.

[0033] Preferably, each group of positioning cylinders 8 has a sliding hole on its outer wall that is compatible with the support rod 11, and the inner wall of the sliding hole is slidably connected to the support rod 11.

[0034] Preferably, the tool clamp 13 has a slot that is compatible with the tillage tool 4.

[0035] Preferably, a bearing hole 14 is fixedly installed in the middle of the outer wall of the tillage disc 1, and bolt holes 15 are evenly opened at the edge of the outer wall of the tillage disc 1 near the middle position.

[0036] Preferably, each set of tool holders 2 has a threaded groove 16 near the connecting cylinder 3.

[0037] Preferably, each set of tillage blades 4 has a through hole on its outer wall that is compatible with the connecting cylinder 3, and the inner wall of the through hole is slidably connected to the connecting cylinder 3.

[0038] Preferably, the inner walls of the two positioning cylinders 8 are slidably connected to the slider 10.

[0039] The specific working principle and usage method of this utility model are as follows: the tillage disc 1 can be connected to the drive end of the land tiller through the bearing hole 14 and the bolt hole 15. When the land tiller drives the tillage disc 1 to rotate, the tillage blades 4 can rotate on the outer wall of the tillage disc 1 to perform land tillage work.

[0040] After the tillage blade 4 is hit by a hard object, the tillage blade 4 can rotate on the outer wall of the tillage blade disc 1. The blade clamp 13 can drive the slider 10 at the support rod 11 to slide inside the positioning cylinder 8, thereby compressing the buffer spring 9 to relieve the vibration, prevent the land tiller from slipping out of your hands and reduce the damage caused by the hard impact of the blade.

[0041] After rotating the positioning screw 5 to remove it from the threaded groove 16, the tillage blade 4 and the connecting cylinder 3 can be replaced.

[0042] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model in any way. Those skilled in the art can readily implement this utility model based on the accompanying drawings and the above description. However, any modifications, alterations, or variations made by those skilled in the art without departing from the scope of the utility model's technical solution, utilizing the disclosed technical content, are equivalent embodiments of this utility model. Furthermore, any equivalent changes, alterations, or variations made to the above embodiments based on the essential technology of this utility model are still within the protection scope of this utility model's technical solution.

Claims

1. A land tillage device comprising a tillage cutterhead (1), a tillage cutter (4), characterized in that: The tillage disc (1) is evenly provided with blade support blocks (2), and there are six sets of blade support blocks (2). Each set of blade support blocks (2) is equipped with a connecting cylinder (3). Each set of connecting cylinders (3) is rotatably connected to the tillage blades (4). Each set of connecting cylinders (3) is threadedly connected with a positioning screw (5). The outer wall of the tillage disc (1) is evenly fixedly installed with mounting brackets (7). Each set of mounting brackets (7) is rotatably connected with a positioning cylinder (8). Each set of positioning cylinders (8) is fixedly installed with a buffer spring (9). One end of each set of buffer springs (9) is fixedly connected with a slider (10). One end of each set of sliders (10) is installed with a support rod (11). One end of each set of support rods (11) is rotatably connected with a receiving frame (12). One end of each set of receiving frames (12) is fixedly connected with a blade clamp (13).

2. The land tillage device of claim 1, wherein The outer wall of the connecting cylinder (3) is fitted with protective pads (6) on both sides near the tillage blade (4), and the protective pads (6) are slidably connected to the tillage blade (4).

3. The land tillage device of claim 1, wherein Each of the positioning cylinders (8) has a sliding hole on its outer wall that is compatible with the support rod (11), and the inner wall of the sliding hole is slidably connected to the support rod (11).

4. The land tillage device of claim 1, wherein The blade clamp (13) has a slot that is compatible with the tillage blade (4).

5. The land tillage device of claim 1, wherein A bearing hole (14) is fixedly installed in the middle of the outer wall of the tillage blade (1), and bolt holes (15) are evenly opened on the outer wall of the tillage blade (1) near the middle edge.

6. The land tillage device of claim 1, wherein Each set of the tool holders (2) has a threaded groove (16) near the connecting cylinder (3).

7. The land tillage device of claim 1, wherein Each set of tillage blades (4) has a through hole on its outer wall that is compatible with the connecting cylinder (3), and the inner wall of the through hole is slidably connected to the connecting cylinder (3).

8. The land tillage device of claim 1, wherein The inner walls of the positioning cylinders (8) on both sides are slidably connected to the slider (10).