Root soil loosening device for crops

Abstract

The utility model discloses a crop root soil loosening device which comprises a machine frame, a driving unit set, a transmission assembly, a first soil cutting disc, a first soil cutting block, a second soil cutting disc and a second soil cutting block. The first soil loosening protrusions on the first soil cutting disc can smash and cut soil and clods on the side close to the root in the rotating process of the first soil cutting disc, the root soil of crops cannot be damaged, and the acting force needed during follow-up root pulling is reduced; the first soil cutting block spirally extends from the center point of the first soil cutting disc to the edge of the first soil cutting disc, in this way, in the rotating process of the first soil cutting disc, the first soil cutting block conducts rotary cutting and guiding on soil on the outer side of the root, external soil is discharged in time, repeated accumulation of the soil after soil loosening is avoided, and the soil loosening efficiency is improved. The soil loosening effect is achieved, meanwhile, the operation range is small, and crop roots cannot be damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a root loosening device for crops. Background Art

[0002] At present, in agricultural planting, there are problems such as crop roots going too deep into the soil and some soil in the land becoming clumpy, which will cause inconvenience when harvesting crops. In the "Onion Soil-opening Device for Onion Harvester" with publication number CN208402466U, a soil-opening device for loosening the soil at the roots is disclosed. A soil-opening knife is set to rotary-paddle the soil at the roots of the onions to reduce the amount of digging and improve the efficiency of the onion harvesting operation. However, this technical solution has the problem that the soil-opening knife device has a large loosening operation range, thereby damaging the crops. Summary of the invention

[0003] In view of this, the purpose of the utility model is to provide a root loosening device for crops.

[0004] In order to achieve the above technical objectives, the technical solution adopted by the utility model is:

[0005] A root loosening device for crops, comprising a frame, a drive unit group, a transmission assembly, a first soil cutting disc, a first soil cutting block, a second soil cutting disc, and a second soil cutting block; the drive unit group comprises a first drive unit and a second drive unit, the first drive unit and the second drive unit are arranged on two sides of the frame relatively; the transmission assembly comprises a first transmission group and a second transmission group, the first transmission group is transmission-connected to the output end of the first drive unit, and the second transmission group is transmission-connected to the output end of the second drive unit; the first soil cutting disc is movably arranged on the frame, the first soil cutting disc is transmission-connected to the first transmission group, the first soil cutting disc comprises a first inner side wall facing the crop, and a first outer side wall away from the crop, a plurality of first soil loosening protrusions are arranged on the first inner side wall, and the plurality of first soil loosening protrusions are arranged along the circumference of the first soil cutting disc; the first soil cutting block is arranged on the first outer side wall, the first soil cutting block extends in a spiral shape from the center point of the first soil cutting disc to the edge of the first soil cutting disc, the first soil cutting block has a first soil cutting ridge, and the first soil cutting ridge is a first The soil cutting block is formed by extending outward from the first outer wall, and the distance between the first soil cutting edge and the first outer wall gradually decreases from the center point of the first soil cutting disk to the edge of the first soil cutting disk according to a first preset gradient; the second soil cutting disk is movably arranged on the frame, the second soil cutting disk is arranged opposite to the first soil cutting disk, and the second soil cutting disk is transmission-connected to the second transmission group, the second soil cutting disk includes a second inner wall facing the crop, and a second outer wall away from the crop, the second inner wall is arranged opposite to the first inner wall, and a plurality of second soil loosening protrusions are provided on the second inner wall, and the plurality of second soil loosening protrusions are arranged along the circumference of the second soil cutting disk; the second soil cutting block is arranged on the second outer wall, and the second soil cutting block extends spirally from the center point of the second soil cutting disk to the edge of the second soil cutting disk, the second soil cutting block has a second soil cutting edge, and the second soil cutting edge is formed by the second soil cutting block extending outward from the second outer wall, and the distance between the second soil cutting edge and the second outer wall gradually decreases from the center point of the second soil cutting disk to the edge of the second soil cutting disk according to a second preset gradient.

[0006] In some embodiments, the first cutting disc has a third cutting edge, which is arranged along the edge of the first cutting disc and intersects with the first cutting edge; and / or, the second cutting disc has a fourth cutting edge, which is arranged along the edge of the second cutting disc and intersects with the second cutting edge.

[0007] In some embodiments, there are a plurality of first cutting blocks distributed along the circumference of the first cutting disc; and / or there are a plurality of second cutting blocks distributed along the circumference of the second cutting disc.

[0008] In some embodiments, a radial cross-section of the first cut block is triangular; and / or a radial cross-section of the second cut block is triangular.

[0009] In some embodiments, it also includes a first rotating shaft, one end of which is connected to the first cutting disc at the center point of the first outer side wall, the other end of the first rotating shaft extends outward from the first outer side wall, and the first rotating shaft is transmission-connected to the first transmission group; and / or, a second rotating shaft, one end of the second rotating shaft is connected to the second cutting disc at the center point of the second outer side wall, the other end of the second rotating shaft extends outward from the second outer side wall, and the second rotating shaft is transmission-connected to the second transmission group.

[0010] In some embodiments, the first rotation axis is coaxially disposed with the second rotation axis.

[0011] In some embodiments, the first transmission group includes a first driving wheel, a first driven wheel, and a first synchronous belt. The first driving wheel is drivingly connected to the first driving unit; the first driven wheel is drivingly connected to the first rotating shaft; and the first synchronous belt is sleeved on the first driving wheel and the first driven wheel.

[0012] In some embodiments, it also includes a first extended bracket and a first rotating base, the first extended bracket is arranged on the frame; the first rotating base is arranged on the first extended bracket, and the first rotating base is connected to the first rotating shaft through a bearing.

[0013] In some embodiments, the second transmission group includes a second driving wheel, a second driven wheel, and a second synchronous belt. The second driving wheel is transmission connected to the second drive unit; the second driven wheel is transmission connected to the second rotating shaft; and the second synchronous belt is sleeved on the second driving wheel and the second driven wheel.

[0014] In some embodiments, it also includes a second extended bracket and a second rotating base, the second extended bracket is arranged on the frame; the second rotating base is arranged on the second extended bracket, and the second rotating base is connected to the second rotating shaft through a bearing.

[0015] By adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

[0016] The root loosening device includes a frame, a drive unit group, a transmission component, a first soil cutting disc, a first soil cutting block, a second soil cutting disc, and a second soil cutting block. The first drive unit and the second drive unit are arranged on the frame to respectively drive the first transmission component and the second transmission component to rotate, so that the first soil cutting disc connected to the first transmission component and the second soil cutting disc connected to the second transmission component can realize synchronous rotation accordingly. The first loosening protrusion on the first soil cutting disc can crush and cut the soil and mud blocks on the side close to the root during the rotation of the first soil cutting disc, and will not damage the root soil of the crop, thereby reducing the force required for subsequent root extraction. The first soil cutting block is extended from the center point of the first soil cutting disc to the first soil cutting disc The edge of the first soil cutting disk extends spirally, and the distance between the first soil cutting edge and the first outer side wall on the first soil cutting block gradually decreases from the center point of the first soil cutting disk to the edge of the first soil cutting disk according to the first preset gradient. In this way, during the rotation of the first soil cutting disk, the first soil cutting block can rotary cut and guide the soil outside the root, discharge the external soil in time, avoid repeated accumulation of soil after loosening the soil, so as to improve the loosening efficiency. Similarly, the functions of the second soil cutting disk and the second soil cutting block are similar to those of the first soil cutting disk and the first soil cutting block, and the second soil cutting disk is arranged relative to the first soil cutting disk, which can fully crush the soil on both sides of the root, achieve the loosening effect, and have a small operation range without damaging the crop roots. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 1 is a first schematic diagram of the crop root loosening device according to a specific implementation manner.

[0019] Figure 2 It is a schematic diagram of the specific structure of the crop root loosening device according to the specific implementation method.

[0020] Figure 3 2. It is a schematic diagram of the structure of the first outer side wall of the first soil cutting disc in a specific implementation manner.

[0021] Figure 4 It is a side view structural schematic diagram of a crop root loosening device according to a specific implementation method.

[0022] Figure 5 It is a schematic diagram of the top view of the structure of the crop root loosening device described in a specific implementation manner.

[0023] Reference numerals:

[0024] 1. Frame;

[0025] 11. The first extension bracket;

[0026] 12. The first rotating base;

[0027] 13. Second extension bracket;

[0028] 14. Second rotating base;

[0029] 2. Drive unit group;

[0030] 21. A first driving unit;

[0031] 22. A second driving unit;

[0032] 3. Transmission components;

[0033] 31. The first transmission group;

[0034] 311, first driving wheel;

[0035] 312, first driven wheel;

[0036] 313, first synchronous belt;

[0037] 32. Second transmission group;

[0038] 321, second driving wheel;

[0039] 322, second driven wheel;

[0040] 323, second synchronous belt;

[0041] 4. First soil cutting plate;

[0042] 41. The first loose soil bulge;

[0043] 42. A first rotation axis;

[0044] 5. First cut the soil;

[0045] 51. First cut soil ridge;

[0046] 6. Second cutting soil plate;

[0047] 61. The second loosening bulge;

[0048] 62. Second rotation axis;

[0049] 7. Second cut of soil;

[0050] 71. Second cut of soil ridge; DETAILED DESCRIPTION

[0051] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is particularly noted that the following embodiments are only used to illustrate the present invention, but do not limit the scope of the present invention. Similarly, the following embodiments are only partial embodiments of the present invention rather than all embodiments. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0052] See also Figures 1 to 5 A root loosening device for crops, comprising a frame 1, a drive unit group 2, a transmission assembly 3, a first soil cutting disc 4, a first soil cutting block 5, a second soil cutting disc 6, and a second soil cutting block 7; the drive unit group 2 comprises a first drive unit 21 and a second drive unit 22, and the first drive unit 21 and the second drive unit 22 are arranged on both sides of the frame 1; the transmission assembly 3 comprises a first transmission group 31 and a second transmission group 32, the first transmission group 31 is transmission-connected to the output end of the first drive unit 21, and the second transmission group 32 is transmission-connected to the output end of the second drive unit 22 The first soil cutting disc 4 is movably arranged on the frame 1, and the first soil cutting disc 4 is connected to the first transmission group 31 in a transmission manner. The first soil cutting disc 4 includes a first inner wall facing the crop, and a first outer wall away from the crop. The first inner wall is provided with a plurality of first loosening protrusions 41, and the plurality of first loosening protrusions 41 are arranged along the circumference of the first soil cutting disc 4; the first soil cutting block 5 is arranged on the first outer wall, and the first soil cutting block 5 extends in a spiral shape from the center point of the first soil cutting disc 4 to the edge of the first soil cutting disc 4, and the first soil cutting block 5 has a first soil cutting edge 51, and the first soil cutting edge 52 is provided on the first outer wall. A soil cutting ridge 51 is formed by the first soil cutting block 5 extending outward from the first outer side wall, and the distance between the first soil cutting ridge 51 and the first outer side wall gradually decreases from the center point of the first soil cutting disc 4 to the edge of the first soil cutting disc 4 according to a first preset gradient; the second soil cutting disc 6 is movably arranged on the frame 1, the second soil cutting disc 6 is arranged opposite to the first soil cutting disc 4, the second soil cutting disc 6 is transmission-connected to the second transmission group 32, the second soil cutting disc 6 includes a second inner side wall facing the crop, and a second outer side wall away from the crop, the second inner side wall is arranged opposite to the first inner side wall, and the second inner side wall A plurality of second loosening protrusions 61 are provided on the upper surface, and the plurality of second loosening protrusions 61 are arranged along the circumference of the second soil cutting disc 6; the second soil cutting block 7 is arranged on the second outer side wall, and the second soil cutting block 7 extends in a spiral shape from the center point of the second soil cutting disc 6 to the edge of the second soil cutting disc 6, and the second soil cutting block 7 has a second soil cutting ridge 71, and the second soil cutting ridge 71 is formed by the second soil cutting block 7 extending outward from the second outer side wall, and the distance between the second soil cutting ridge 71 and the second outer side wall gradually decreases from the center point of the second soil cutting disc 6 to the edge of the second soil cutting disc 6 according to a second preset gradient.

[0053] In this embodiment, the frame 1 can be the frame 1 of an existing harvesting equipment, and the frame 1 can also be a supporting structure built using aluminum profiles alone. The loosening device shown in this embodiment can be used alone or integrated in an existing harvesting machine. The specific shape of the frame 1 can also be adjusted according to actual needs, and this embodiment does not limit this.

[0054] Specifically, the drive unit group 2 includes a first drive unit 21 and a second drive unit 22. The first drive unit 21 and the second drive unit 22 can be drive devices of the same category. In some optional embodiments, the first drive unit 21 and the second drive unit 22 can be the same drive device, and the transmission connection between a drive device and the first soil cutting disc 4 and the second soil cutting disc 6 is realized by adding a synchronous pulley, gear meshing, etc. Preferably, in this embodiment, the first drive unit 21 is connected to the first soil cutting disc 4 by transmission, and the second drive unit 22 is connected to the second soil cutting disc 6 by transmission, and the two are independent of each other.

[0055] Furthermore, the present embodiment is also provided with a transmission assembly 3, the transmission assembly 3 includes a first transmission group 31 and a second transmission group 32, the first transmission group 31 is arranged between the first drive unit 21 and the first soil cutting disc 4, and the second transmission group 32 is arranged between the second drive unit 22 and the second soil cutting disc 6, then the positions of the first drive unit 21 and the second drive unit 22 can be arranged according to actual needs, so that the first drive unit 21 and the second drive unit 22 are arranged in an area far away from the first soil cutting disc 4 and the second soil cutting disc 6, so as to avoid the soil generated during the loosening process of the first soil cutting disc 4 and the second soil cutting disc 6 from splashing on the first drive unit 21 and the second drive unit 22, affecting the service life of the first drive unit 21 and the second drive unit 22, and also reducing the safety risk of the first drive unit 21 and the second drive unit 22 touching the liquid and causing leakage. Furthermore, a protective cover can also be arranged outside the first drive unit 21 and the second drive unit 22 to further extend the service life of the entire root loosening device.

[0056] In this embodiment, the first soil cutting disc 4 and the second soil cutting disc 6 are arranged opposite to each other, and the structure of the first soil cutting disc 4 is the same as that of the second soil cutting disc 6. Here, the first soil cutting disc 4 is taken as an example for specific description, and the structure of the second soil cutting disc 6 is understood with reference to the first soil cutting disc 4:

[0057] See also Figures 2 to 5The first soil cutting disc 4 is a disc structure, which is distinguished by the side facing the crop as the inner side and the side away from the crop as the outer side. The first soil cutting disc 4 has a first inner wall and a first outer wall. Optionally, the first inner wall and the first outer wall can be flat or curved. The specific structure can be set according to actual needs. Preferably, the first inner wall shown in this embodiment is a flat structure. This method can reduce the degree of squeezing of the crops on the inner side during the soil cutting process of the first soil cutting disc 4. The first outer wall is also a flat structure to improve the discharge efficiency of the soil on the first outer wall and reduce the amount of soil adhesion; optionally, the first outer wall can also be a convex spherical structure to further improve the discharge efficiency of the soil.

[0058] A plurality of first loosening protrusions 41 are provided on the first inner side wall, and the first loosening protrusions 41 are short round rod structures. Preferably, the ends of the first loosening protrusions 41 have pointed structures. The plurality of first loosening protrusions 41 are evenly distributed on the first inner side wall along the circumference of the first soil cutting disc 4, and the first loosening protrusions 41 are arranged toward the inside. The first loosening protrusions 41 can be inserted into the soil inside when the first soil cutting disc 4 rotates to crush the soil clods at the roots of the crops and increase the looseness of the soil at the roots. For crops such as onions and garlic that need to be harvested by pulling out, this method can significantly reduce the force applied to the user when pulling out, so that the integrity of the roots of the crops can be better preserved.

[0059] Further, the first outer side wall is provided with a first soil cutting block 5, and the number of the first soil cutting block 5 can be multiple or one. The first soil cutting block 5 extends in a spiral shape from the center point of the first soil cutting disk 4 to the edge of the first soil cutting disk 4, and the first soil cutting block 5 has a first soil cutting edge 51, which can be understood as the outer edge line of the first soil cutting block 5, and the first soil cutting edge 51 has a thin wall feature, so that it can cut into the soil like a blade during the soil cutting process, reducing the reaction force of the soil during the cutting process. Specifically, the distance between the first soil cutting edge 51 and the first outer side wall gradually decreases from the center point of the first soil cutting disk 4 to the edge of the first soil cutting disk 4 according to the first preset gradient, wherein the first preset gradient can also be understood as the change trend of the distance between the first soil cutting edge 51 and the first outer side wall, when the first preset gradient is a fixed value, the change trend of the distance between the first soil cutting edge 51 and the first outer side wall is a straight line, and when the first preset gradient is a variable value, the change trend of the distance between the first soil cutting edge 51 and the first outer side wall is a curve, and the first preset gradient can be set here according to actual needs. Similarly, the second preset gradient can also be understood with reference to the first preset gradient.

[0060] When the first soil cutting disc 4 is rotating, the first soil loosening protrusion 41 of the first inner wall will continue to crush the soil near the root to reduce the force required for subsequent crop removal, and also reduce the probability of the root being broken by soil adhesion; the first soil cutting edge 51 on the first outer wall will rotate with the first outer wall, and cut into the soil from shallow to deep during the rotation process, and use the upper surface of the first soil cutting block 5 to bring the cut soil block away from the ground, and the soil block will fall again under the action of its own weight, so that the soil block itself is crushed to achieve the effect of loosening the soil outside the root. It can be understood that by reasonably adjusting the spacing and installation direction of the first soil cutting disc 4 and the second soil cutting disc 6, the root loosening device shown in this embodiment can not only be used in the crop harvesting stage, but also in the crop sowing stage. The soil loosening operation is used as a small plowing device; even, the root loosening device shown in this embodiment can also be used in the weeding stage of the crop when it is growing, which can adapt to the root weeding needs of small crops in the planting stage, reduce the difficulty of crop planting, and improve planting efficiency.

[0061] In some embodiments, the first cutting disc 4 has a third cutting edge, which is arranged along the edge of the first cutting disc 4 and intersects with the first cutting edge 51; and / or, the second cutting disc 6 has a fourth cutting edge, which is arranged along the edge of the second cutting disc 6 and intersects with the second cutting edge 71.

[0062] In this embodiment, a third soil-cutting edge is provided at the edge of the first soil-cutting disc 4. The third soil-cutting edge is similar to the first soil-cutting edge 51, and both are thin-walled structures. The third soil-cutting edge can resist the reaction force of the soil during the rotation of the first soil-cutting disc 4. Moreover, the setting of the third soil-cutting edge helps the first soil-cutting disc 4 to cut into the soil to a certain depth during the rotation process, so as to improve the soil loosening effect on the roots of crops. At the same time, the third soil-cutting edge intersects with the first soil-cutting edge 51. After the third soil-cutting edge cuts into the soil, the first soil-cutting edge 51 can cut the soil blocks on the side where the first outer wall is located under the action of inertia, so that the soil loosening operation of the entire first soil-cutting disc 4 is smoother and smoother. Similarly, a fourth soil-cutting edge is provided at the edge of the second soil-cutting disc 6. Its specific function is similar to that of the third soil-cutting edge, and no unnecessary details are given here.

[0063] In some embodiments, the number of first soil cutting blocks 5 is multiple and distributed along the circumference of the first soil cutting disc 4; and / or the number of second soil cutting blocks 7 is multiple and distributed along the circumference of the second soil cutting disc 6. This method can more fully loosen the soil outside the root and improve the soil cutting efficiency of the first soil cutting disc 4 when it rotates one circle.

[0064] In some embodiments, the radial cross section of the first soil-cutting block 5 is triangular; and / or, the radial cross section of the second soil-cutting block 7 is triangular. In this embodiment, the radial cross section of the first soil-cutting block 5 is triangular, that is, the first soil-cutting block 5 has a certain thickness, and the thickness at the first soil-cutting edge 51 is the thinnest part of the first soil-cutting block 5. This method can increase the structural strength of the entire first soil-cutting block 5, so that the first soil-cutting edge 51 has a greater inertial force in the process of cutting into the soil, so as to adapt to soil structures of different degrees of hardness and softness. Moreover, the two sides of the first soil-cutting block 5 under this structure have an inclination angle, and the soil blocks cut into by the first soil-cutting edge 51 will be guided to the outside by the two sides of the first soil-cutting block 5. In the process of guiding, the soil blocks will form more cracks or gaps due to their characteristics, thereby increasing the degree of fragmentation of the soil blocks to improve the efficiency of loosening the soil. Similarly, the structure of the second soil-cutting block 7 is similar to that of the first soil-cutting block 5, and the second soil-cutting block 7 has the same loosening effect as the first soil-cutting block 5.

[0065] See also Figures 2 to 3 In some embodiments, it also includes a first rotating shaft 42, one end of the first rotating shaft 42 is connected to the first soil cutting disc 4 at the center point of the first outer side wall, the other end of the first rotating shaft 42 extends outward from the first outer side wall, and the first rotating shaft 42 is transmission-connected to the first transmission group 31; and / or, a second rotating shaft 62, one end of the second rotating shaft 62 is connected to the second soil cutting disc 6 at the center point of the second outer side wall, the other end of the second rotating shaft 62 extends outward from the second outer side wall, and the second rotating shaft 62 is transmission-connected to the second transmission group 32.

[0066] In this embodiment, the first rotating shaft 42 and the first soil cutting disc 4 can be integrally formed. Specifically, the first rotating shaft 42 is arranged at the center point of the first soil cutting disc 4, and the first rotating shaft 42 extends outward from the first outer side wall of the first soil cutting disc 4, and the first rotating shaft 42 is transmission-connected with the first transmission group 31. Similarly, the second rotating shaft 62 and the second soil cutting disc 6 can be integrally formed. Specifically, the second rotating shaft 62 is arranged at the center point of the second soil cutting disc 6, and the second rotating shaft 62 extends outward from the second outer side wall of the second soil cutting disc 6, and the second rotating shaft 62 is transmission-connected with the second transmission group 32.

[0067] In some embodiments, the first soil cutting disc 4 and the second soil cutting disc 6 are not coaxially arranged, that is, the first soil cutting disc 4 and the second soil cutting disc 6 are staggered on both sides of the crop. Optionally, the rotation speeds of the first soil cutting disc 4 and the second soil cutting disc 6 may also be different to meet the soil loosening requirements of different crops.

[0068] In some embodiments, the first rotating shaft 42 and the second rotating shaft 62 are coaxially arranged. In this way, the first cutting disc 4 and the second cutting disc 6 are symmetrically arranged on both sides of the crop. The user only needs to push the loosening device forward to simultaneously complete the loosening needs on both sides of the crop, thereby improving the loosening efficiency of a single row of crops.

[0069] For further information, see Figure 2 In some embodiments, the first transmission group 31 includes a first driving wheel 311, a first driven wheel 312, and a first synchronous belt 313. The first driving wheel 311 is connected to the first driving unit 21; the first driven wheel 312 is connected to the first rotating shaft 42; the first synchronous belt 313 is sleeved on the first driving wheel 311 and the first driven wheel 312. In this embodiment, the first transmission group 31 is a synchronous pulley. Specifically, the first transmission group 31 includes a first driving wheel 311, a first driven wheel 312 and a first synchronous belt 313, wherein the first driving wheel 311 is connected to the first drive unit 21 in transmission, such as a keyway engagement connection, and the first driven wheel 312 is connected to the first rotating shaft 42 in transmission, or a keyway engagement connection, or other interference fit methods. The first synchronous belt 313 is sleeved on the first driving wheel 311 and the first driven wheel 312. When the first driving wheel 311 rotates under the drive of the first drive unit 21, it will drive the first synchronous belt 313 to rotate, and the first synchronous belt 313 drives the first driven wheel 312 to rotate, thereby realizing the rotation of the first rotating shaft 42 and the first cutting disc 4.

[0070] Similarly, in some embodiments, the second transmission group 32 includes a second driving wheel 321, a second driven wheel 322, and a second synchronous belt 323. The second driving wheel 321 is in driving connection with the second driving unit 22; the second driven wheel 322 is in driving connection with the second rotating shaft 62; and the second synchronous belt 323 is sleeved on the second driving wheel 321 and the second driven wheel 322. The structure of the second transmission group 32 can be understood with reference to the first transmission group 31, and no unnecessary details are given here.

[0071] See also Figure 2 and Figure 5In some embodiments, the first extension bracket 11 and the first rotating base 12 are further included. The first extension bracket 11 is arranged on the frame 1; the first rotating base 12 is arranged on the first extension bracket 11, and the first rotating base 12 is connected to the first rotating shaft 42 through a bearing. In this embodiment, the first extension bracket 11 is arranged on the frame 1. Optionally, the first extension bracket 11 can also be arranged on other equipment with a rod-shaped extension portion. The interior of the first extension bracket 11 can be a hollow structure, that is, the first extension bracket 11 can be made of a square tube, a round tube or a rectangular tube material for installation. The first rotating base 12 can be a support seat with a bearing. The first rotating base 12 is arranged on the first extension bracket 11. The first rotating shaft 42 passes through the first rotating base 12 and is connected to the first driven wheel 312. The first rotating base 12 can provide a supporting structure for the first rotating shaft 42, so that the connection between the first cutting disc 4 and the frame 1 is more stable, and the shear force borne by the first driven wheel 312 is reduced, so as to extend the service life of the entire loosening device.

[0072] Similarly, in some embodiments, a second extension bracket 13 and a second rotating base 14 are further included. The second extension bracket 13 is disposed on the frame 1; the second rotating base 14 is disposed on the second extension bracket 13, and the second rotating base 14 is connected to the second rotating shaft 62 via a bearing. The structures of the second extension bracket 13 and the second rotating base 14 can be understood with reference to the first extension bracket 11 and the first rotating base 12, and will not be described in detail here.

[0073] The root loosening device includes a frame 1, a drive unit group 2, a transmission assembly 3, a first soil cutting disc 4, a first soil cutting block 5, a second soil cutting disc 6, and a second soil cutting block 7. The first drive unit 21 and the second drive unit 22 are arranged on the frame 1 to respectively drive the first transmission group 31 part 3 and the second transmission group 32 part 3 to rotate, so that the first soil cutting disc 4 connected to the first transmission group 31 part 3 and the second soil cutting disc 6 connected to the second transmission group 32 part 3 can realize synchronous rotation accordingly. The first loosening protrusion 41 on the first soil cutting disc 4 can crush and cut the soil and mud blocks on the side close to the root during the rotation of the first soil cutting disc 4, and will not damage the root soil of the crop, thereby reducing the force required for subsequent root extraction. The first soil cutting block 5 is removed from the middle of the first soil cutting disc 4. The first soil cutting disc 4 is spirally extended from the center point to the edge of the first soil cutting disc 4, and the distance between the first soil cutting edge 51 on the first soil cutting block 5 and the first outer wall gradually decreases from the center point of the first soil cutting disc 4 to the edge of the first soil cutting disc 4 according to a first preset gradient. This method allows the first soil cutting disc 4 to rotate while the first soil cutting block 5 can cut and guide the soil outside the root, discharge the external soil in time, and avoid repeated accumulation of soil after loosening the soil, so as to improve the loosening efficiency. Similarly, the functions of the second soil cutting disc 6 and the second soil cutting block 7 are similar to those of the first soil cutting disc 4 and the first soil cutting block 5, and the second soil cutting disc 6 is arranged opposite to the first soil cutting disc 4, which can fully crush the soil on both sides of the root, and achieve the loosening effect while having a small operating range, and will not damage the crop roots.

[0074] The above descriptions are only some embodiments of the present invention, and do not limit the protection scope of the present invention. Any equivalent device or equivalent process transformation made using the contents of the present invention specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A root loosening device for crops, characterized in that: include: frame; A drive unit group, comprising a first drive unit and a second drive unit, wherein the first drive unit and the second drive unit are arranged on two sides of the frame opposite to each other; A transmission assembly, comprising a first transmission group and a second transmission group, wherein the first transmission group is transmission-connected to an output end of the first drive unit, and the second transmission group is transmission-connected to an output end of the second drive unit; a first soil cutting disc, movably arranged on the frame, the first soil cutting disc being in transmission connection with the first transmission group, the first soil cutting disc comprising a first inner wall facing the crop, and a first outer wall facing away from the crop, the first inner wall being provided with a plurality of first soil loosening protrusions, and the plurality of first soil loosening protrusions being arranged along the circumference of the first soil cutting disc; A first soil cutting block is arranged on the first outer side wall, the first soil cutting block extends in a spiral shape from the center point of the first soil cutting disk to the edge of the first soil cutting disk, the first soil cutting block has a first soil cutting edge, the first soil cutting edge is formed by the first soil cutting block extending outward from the first outer side wall, and the distance between the first soil cutting edge and the first outer side wall gradually decreases from the center point of the first soil cutting disk to the edge of the first soil cutting disk according to a first preset gradient; a second soil cutting disc, movably arranged on the frame, the second soil cutting disc being arranged opposite to the first soil cutting disc, the second soil cutting disc being transmission-connected to the second transmission group, the second soil cutting disc comprising a second inner side wall facing the crop, and a second outer side wall facing away from the crop, the second inner side wall being arranged opposite to the first inner side wall, a plurality of second soil loosening protrusions being arranged on the second inner side wall, and the plurality of second soil loosening protrusions being arranged along the circumference of the second soil cutting disc; A second soil cutting block is arranged on the second outer side wall, and the second soil cutting block extends spirally from the center point of the second soil cutting disk to the edge of the second soil cutting disk. The second soil cutting block has a second soil cutting ridge, and the second soil cutting ridge is formed by the second soil cutting block extending outward from the second outer side wall. The distance between the second soil cutting ridge and the second outer side wall gradually decreases from the center point of the second soil cutting disk to the edge of the second soil cutting disk according to a second preset gradient.

2. The root loosening device for crops according to claim 1, characterized in that: The first soil cutting disc has a third soil cutting edge, and the third soil cutting edge is arranged along the edge of the first soil cutting disc and intersects with the first soil cutting edge; And / or, the second soil cutting disc has a fourth soil cutting edge, and the fourth soil cutting edge is arranged along the edge of the second soil cutting disc and intersects with the second soil cutting edge.

3. The root loosening device for crops according to claim 2, characterized in that: The first soil cutting blocks are in a plurality and distributed along the circumference of the first soil cutting disk; And / or, there are multiple second soil cutting blocks distributed along the circumference of the second soil cutting disc.

4. The root loosening device for crops according to claim 3, characterized in that: The radial cross section of the first cut soil block is triangular; And / or, the radial cross-section of the second cut soil block is triangular.

5. The root loosening device for crops according to claim 1, characterized in that: Also includes: A first rotating shaft, one end of which is connected to the first soil cutting disc at the center point of the first outer side wall, the other end of which extends outward from the first outer side wall, and the first rotating shaft is in transmission connection with the first transmission group; And / or, a second rotating shaft, one end of the second rotating shaft is connected to the second cutting disc at the center point of the second outer side wall, the other end of the second rotating shaft extends outward from the second outer side wall, and the second rotating shaft is transmission-connected to the second transmission group.

6. The root loosening device for crops according to claim 5, characterized in that: The first rotation axis is coaxially arranged with the second rotation axis.

7. The root loosening device for crops according to claim 5, characterized in that: The first transmission group comprises: A first driving wheel, drivingly connected to the first driving unit; A first driven wheel, drivingly connected to the first rotating shaft; The first synchronous belt is sleeved on the first driving wheel and the first driven wheel.

8. The root loosening device for crops according to claim 7, characterized in that: Also includes: A first extension bracket, arranged on the frame; The first rotating base is arranged on the first extending bracket, and the first rotating base is connected to the first rotating shaft through a bearing.

9. The root loosening device for crops according to claim 7, characterized in that: The second transmission group comprises: A second driving wheel, drivingly connected to the second driving unit; A second driven wheel, drivingly connected to the second rotating shaft; The second synchronous belt is sleeved on the second driving wheel and the second driven wheel.

10. The root loosening device for crops according to claim 9, characterized in that: Also includes: A second extension bracket is arranged on the frame; The second rotating base is arranged on the second extended bracket, and the second rotating base is connected to the second rotating shaft through a bearing.

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