Disc harrow group

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By designing an adjustable disc harrow set and leveling plow, the problem of the lack of flexibility in existing agricultural tillage equipment when dealing with different soil conditions is solved, flexible soil crushing and leveling is achieved, and crop growth environment is improved.

CN222547979UActive Publication Date: 2025-03-04XUZHOU ZHONGYANG AGRI MASCH CO LTD

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Patent Information

Application Number: CN202421312109.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-06-07
Publication Date: 2025-03-04
Estimated Expiration: 2034-06-07

AI Technical Summary

Technical Problem

Existing agricultural tillage equipment lacks flexibility and adaptability when dealing with different soil conditions or different crushing needs, resulting in the inability to achieve the expected soil crushing effect, and may even damage the soil structure and affect crop growth.

Method used

A disk harrow group is designed, including a rake group main frame, a first spindle and a second spindle. A soil disc is connected to the first spindle and a crushed soil disc is connected to the second spindle. By adjusting the angle between the second spindle and the rake group main frame, the soil is flexibly broken and equipped with a flat plow for soil leveling.

Benefits of technology

By adjusting the angle of the rake group and using a flat plow, flexible soil crushing and leveling can be carried out according to different soil conditions and needs, improving the crop growth environment and reducing soil block accumulation and unevenness.

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Abstract

The utility model discloses a disc harrow group which comprises a harrow group main frame, the lower side of the harrow group main frame is connected with a first main shaft in a rotating mode, the axis of the first main shaft is parallel to the lower surface of the harrow group main frame and is perpendicular to the advancing direction of the harrow group main frame, and the first main shaft is evenly sleeved with soil lifting discs used for raking a soil layer. A first main shaft is arranged on the lower side of the harrow group main frame, a second main shaft is arranged on the lower side of the harrow group main frame, the second main shaft is located behind the first main shaft, and soil breaking discs used for breaking harrowed soil are evenly connected to the second main shaft in a sleeved mode. The distance, perpendicular to the advancing direction, of every two adjacent soil crushing discs can be changed, in the advancing process, the density of the soil capable of being crushed during rotation each time is changed, and therefore the soil can be crushed to different degrees according to actual requirements, and crop growth is improved.

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Description

Technical Field

[0001] The utility model relates to a disc harrow group and belongs to the technical field of disc harrow groups. Background Art

[0002] In existing agricultural farming equipment, soil crushing usually relies on fixed harrows or crushing devices, which often lack sufficient flexibility and adaptability when dealing with different soil conditions or different crushing requirements. Traditional fixed crushing devices may not achieve the desired effect, and may even damage the soil structure due to excessive crushing, affecting crop growth. Therefore, a disc harrow group is proposed. Utility Model Content

[0003] The purpose of the utility model is to provide a disc harrow group to solve the problems raised in the above background technology.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solution: a disc harrow group, comprising:

[0005] Main frame of the harrow group;

[0006] A first main shaft, the first main shaft is rotatably connected to the lower side of the harrow group main frame, and the axis of the first main shaft is parallel to the lower surface of the harrow group main frame and perpendicular to the forward direction of the harrow group main frame, and the first main shaft is evenly sleeved with soil-raising discs for raking up the soil layer;

[0007] The second main shaft is arranged at the lower side of the main frame of the harrow group, and is located behind the first main shaft. The second main shaft is evenly sleeved with soil crushing discs for crushing the raked soil. The soil crushing discs are used to further crush and loosen the soil. When the soil crushing discs rotate, they cut into the soil, and the soil is crushed and loosened by their sharp edges.

[0008] Among them, the middle part of the second main shaft is rotatably connected to the main frame of the rake group, a rotating rod is vertically fixed to the middle part of the second main shaft, the second main shaft is rotatably connected to the main frame of the rake group through the rotating rod, and the main frame of the rake group is provided with an angle limiting component for limiting the angle between the second main shaft and the forward direction of the rake group main frame.

[0009] Preferably, the angle limiting component comprises:

[0010] A connecting column, the lower end of which is sleeved on the upper end of the second main shaft, the upper end of which is provided with a threaded hole, and the upper end of which is against the lower surface of the main frame of the rake group;

[0011] A plurality of positioning holes are provided on the side wall of the main frame of the rake group, the plurality of positioning holes are distributed along the circumference of the rotating shaft of the second main shaft, and the spacing between the positioning holes and the rotating shaft of the second main shaft is equal to the spacing between the threaded hole of the connecting column and the rotating shaft of the second main shaft;

[0012] A locking bolt is inserted into the positioning hole. When the threaded hole of the connecting column faces the positioning hole, the threaded end of the locking bolt is engaged and connected in the threaded hole of the connecting column.

[0013] Preferably, a disc harrow group further comprises:

[0014] A leveling plow, which is arranged on the lower surface of the harrow group main frame and is located at the rear side of the second main shaft;

[0015] Multiple plow posts, the multiple plow posts are used to level the broken soil, and the multiple plow posts are evenly distributed on the lower surface of the leveling plow.

[0016] Preferably, the lower surface of the harrow group main frame is arranged on a connecting rod for connecting a leveling plow, the upper end of the connecting rod is fixedly connected to the lower surface of the harrow group main frame, and the lower end of the connecting rod is connected to the upper surface of the leveling plow.

[0017] Preferably, the lower end of the connecting rod is rotatably connected to the upper surface of the leveling plow, and the lower surface of the harrow group main frame is also provided with:

[0018] A lead screw is rotatably connected to the lower surface of the main frame of the rake group, and one end of the lead screw is provided with a hexagonal driving block;

[0019] A slider is meshed and connected to the lead screw. When the lead screw rotates, the slider slides along the axis of the lead screw.

[0020] An adjusting rod is rotatably connected to the side wall of the sliding block, and a lower end of the adjusting rod is rotatably connected to the upper surface of the leveling plough.

[0021] Preferably, a soil guide plate inclined upward is provided on a side of the leveling plough close to the second main shaft.

[0022] Preferably, the lower end of the plough column is a sharp end in a cone shape.

[0023] Preferably, one end of the rake group main frame is provided with a connecting frame for connecting to the vehicle frame.

[0024] Compared with existing technologies:

[0025] The utility model adjusts the angle between the second main shaft and the forward direction of the harrow group main frame, so that the distance between two adjacent soil crushing discs perpendicular to the forward direction will change. During the forward process, the density of soil that can be crushed changes with each rotation, so that the soil can be crushed to different degrees according to actual needs, thereby improving crop growth.

[0026] After the utility model lifts and breaks the soil by means of the soil lifting disc and the soil breaking disc, the leveling plow can immediately level the broken soil. The leveling plow can effectively level the soil surface, reduce the accumulation and unevenness of soil blocks, and provide good soil conditions for subsequent sowing, planting and other operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the utility model;

[0028] Figure 2 It is a side view of the utility model;

[0029] Figure 3 It is a bottom view of the utility model;

[0030] Figure 4 It is an exploded view of the main frame, the second main shaft and the angle limiting assembly of the rake group of the utility model;

[0031] Figure 5 It is a structural schematic diagram of the main frame of the harrow group and the leveling plow of the utility model.

[0032] In the figure: 1, harrow group main frame, 2, first main shaft, 3, soil lifting disc, 4, second main shaft, 5, soil crushing disc, 6, angle limiting assembly, 601, connecting column, 602, positioning hole, 603, locking bolt, 7, leveling plow, 8, plow column, 9, soil guide plate, 10, connecting rod, 11, connecting frame, 12, screw, 13, slider, 14, adjusting rod, 15, rotating rod. DETAILED DESCRIPTION

[0033] The present invention is described below with specific embodiments, but is not intended to be a limitation of the present invention.

[0034] Embodiment 1

[0035] like Figure 1-Figure 5 As shown, in this embodiment, a disc harrow group is provided, including a harrow group main frame 1, one end of the harrow group main frame 1 is provided with a connecting frame 11 for connecting to a vehicle frame, the lower side of the harrow group main frame 1 is rotatably connected with a first main shaft 2, and the axis of the first main shaft 2 is parallel to the lower surface of the harrow group main frame 1 and perpendicular to the forward direction of the harrow group main frame 1, and the first main shaft 2 is evenly sleeved with soil-lifting discs 3 for raking up the soil layer, the lower side of the harrow group main frame 1 is arranged on a second main shaft 4, the second main shaft 4 is located behind the first main shaft 2, and the second main shaft 4 is evenly sleeved with soil-crushing discs 5 for crushing the raked soil, and the soil-crushing discs 5 are used to further crush and loosen the soil. When the soil-crushing discs 5 rotate, they cut into the soil and crush and loosen the soil through their sharp edges;

[0036] The middle part of the second main shaft 4 is rotatably connected to the main frame 1 of the rake group. Figure 4 As shown, a rotating rod 15 is vertically fixed in the middle of the second main shaft 4, and the second main shaft 4 is rotatably connected to the rake group main frame 1 through the rotating rod 15. The rake group main frame 1 is provided with an angle limiting component 6 for limiting the angle between the second main shaft 4 and the forward direction of the rake group main frame 1.

[0037] When the angle between the second main axis 4 and the advancing direction of the harrow group main frame 1 decreases (that is, the soil crushing disc 5 is closer to being parallel to the advancing direction), the distance between two adjacent soil crushing discs 5 perpendicular to the advancing direction will decrease (such as Figure 4 The d spacing shown becomes smaller), and during the forward process, the density of the soil that can be crushed increases with each rotation, which is suitable for soils that require finer crushing;

[0038] On the contrary, when the angle increases (i.e., the soil crushing disc 5 is further away from being parallel to the advancing direction), the distance between two adjacent soil crushing discs 5 perpendicular to the advancing direction will increase (e.g., Figure 4 The d spacing shown becomes larger), and the density of soil that can be crushed per rotation decreases, which is suitable for soils that require faster speed or coarser crushing.

[0039] like Figure 4 As shown, in order to be able to adjust the angle of the second main shaft 4 and fix the adjusted angle of the second main shaft 4, the angle limiting component 6 includes a connecting column 601, a plurality of positioning holes 602 and a locking bolt 603. The lower end of the connecting column 601 is sleeved on the upper end of the second main shaft 4. A threaded hole is provided at the upper end of the connecting column 601, and the upper end of the connecting column 601 is against the lower surface of the rake group main frame 1. A plurality of positioning holes 602 are provided on the side wall of the rake group main frame 1. The plurality of positioning holes 602 are distributed along the circumference of the rotating shaft of the second main shaft 4, and the spacing between the positioning hole 602 and the rotating shaft of the second main shaft 4 is equal to the spacing between the threaded hole of the connecting column 601 and the rotating shaft of the second main shaft 4. The locking bolt 603 is inserted into the positioning hole 602. When the threaded hole of the connecting column 601 is opposite to the positioning hole 602, the threaded end of the locking bolt 603 is engaged and connected in the threaded hole of the connecting column 601.

[0040] Embodiment 2

[0041] like Figure 1 , Figure 2 and Figure 5 As shown, on the basis of the first embodiment, in order to level the broken soil, this embodiment includes a disc harrow group further comprising a leveling plow 7 and a plurality of plow posts 8. The leveling plow 7 is arranged on the lower surface of the harrow group main frame 1, and the leveling plow 7 is located on the rear side of the second main shaft 4. The plurality of plow posts 8 are used to level the broken soil, and the plurality of plow posts 8 are evenly distributed on the lower surface of the leveling plow 7.

[0042] like Figure 2 and Figure 5 As shown, in order to connect the leveling plow 7 to the harrow group main frame 1, the lower surface of the harrow group main frame 1 is provided with a connecting rod 10 for connecting the leveling plow 7, the upper end of the connecting rod 10 is fixedly connected to the lower surface of the harrow group main frame 1, and the lower end of the connecting rod 10 is connected to the upper surface of the leveling plow 7.

[0043] A soil guide plate 9 inclined upward is provided on one side of the leveling plough 7 close to the second main shaft 4 .

[0044] The lower end of the plough column 8 is a sharp end in a cone shape.

[0045] Embodiment 3

[0046] like Figure 5 As shown, on the basis of the second embodiment, in order to be able to adjust the angle of the leveling plow 7 in this embodiment, the lower end of the connecting rod 10 is rotatably connected to the upper surface of the leveling plow 7, and a screw 12 is further provided on the lower surface of the harrow group main frame 1, and the screw 12 is rotatably connected to the lower surface of the harrow group main frame 1, and a hexagonal driving block is provided at one end of the screw 12; a slider 13 is meshingly connected to the screw 12, and when the screw 12 rotates, the slider 13 slides along the axis of the screw 12; an adjusting rod 14 is rotatably connected to the side wall of the slider 13, and the lower end of the adjusting rod 14 is rotatably connected to the upper surface of the leveling plow 7, and the angle adjustment of the leveling plow 7 can be precisely adjusted according to different soil conditions and work requirements, thereby optimizing the leveling effect.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

Claims

1. A disc harrow assembly, characterized in that: include: A harrow assembly main frame (1); A first main shaft (2), the first main shaft (2) is rotatably connected to the lower side of the harrow group main frame (1), and the axis of the first main shaft (2) is parallel to the lower surface of the harrow group main frame (1) and perpendicular to the forward direction of the harrow group main frame (1), and the first main shaft (2) is evenly sleeved with soil lifting discs (3) for raking up soil layers; A second main shaft (4), the second main shaft (4) being arranged on the lower side of the main frame (1) of the harrow group, the second main shaft (4) being located behind the first main shaft (2), and soil crushing discs (5) for crushing the raked soil being evenly sleeved on the second main shaft (4); The middle part of the second main shaft (4) is rotatably connected to the rake group main frame (1), and the rake group main frame (1) is provided with an angle limiting component (6) for limiting the angle between the second main shaft (4) and the forward direction of the rake group main frame (1).

2. A disc harrow assembly according to claim 1, characterized in that: The angle limiting component (6) comprises: A connecting column (601), the lower end of which is sleeved on the upper end of the second main shaft (4), the upper end of which is provided with a threaded hole, and the upper end of which is against the lower surface of the rake group main frame (1); A plurality of positioning holes (602), the plurality of positioning holes (602) being provided on the side wall of the main frame (1) of the rake assembly, the plurality of positioning holes (602) being distributed along the circumference of the rotating shaft of the second main shaft (4), and the spacing between the positioning holes (602) and the rotating shaft of the second main shaft (4) being equal to the spacing between the threaded hole of the connecting column (601) and the rotating shaft of the second main shaft (4); A locking bolt (603) is inserted into the positioning hole (602). When the threaded hole of the connecting column (601) faces the positioning hole (602), the threaded end of the locking bolt (603) is engaged and connected in the threaded hole of the connecting column (601).

3. A disc harrow assembly according to claim 1, characterized in that: Also includes: a leveling plow (7), wherein the leveling plow (7) is arranged on the lower surface of the harrow group main frame (1), and the leveling plow (7) is located at the rear side of the second main shaft (4); A plurality of plow posts (8) are used to level the broken soil, and the plurality of plow posts (8) are evenly distributed on the lower surface of the leveling plow (7).

4. A disc harrow assembly according to claim 3, characterized in that: The lower surface of the harrow group main frame (1) is provided with a connecting rod (10) for connecting to a leveling plough (7), the upper end of the connecting rod (10) is fixedly connected to the lower surface of the harrow group main frame (1), and the lower end of the connecting rod (10) is connected to the upper surface of the leveling plough (7).

5. A disc harrow assembly according to claim 4, characterized in that: The lower end of the connecting rod (10) is rotatably connected to the upper surface of the leveling plow (7), and the lower surface of the harrow group main frame (1) is also provided with: A lead screw (12), the lead screw (12) being rotatably connected to the lower surface of the rake assembly main frame (1), and one end of the lead screw (12) being provided with a hexagonal drive block; A slider (13), wherein the slider (13) is meshedly connected to the lead screw (12), and when the lead screw (12) rotates, the slider (13) slides along the axis of the lead screw (12); An adjusting rod (14) is rotatably connected to the side wall of the sliding block (13), and the lower end of the adjusting rod (14) is rotatably connected to the upper surface of the leveling plow (7).

6. A disc harrow assembly according to claim 3, characterized in that: A soil guide plate (9) inclined upward is arranged on one side of the leveling plough (7) close to the second main shaft (4).

7. A disc harrow assembly according to claim 3, characterized in that: The lower end of the plough column (8) is a sharp end in a cone shape.

8. A disc harrow assembly according to claim 1, characterized in that: One end of the harrow group main frame (1) is provided with a connecting frame (11) for connecting to a vehicle frame.