Fertilization assembly and multifunctional no-tillage precision fertilizing and seeding machine
By designing the plowing, crushing and compression spring components of the multi-functional no-till precision fertilization seeder, the complexity and cost problems of existing fertilization equipment are solved, and efficient fertilization and soil breaking on uneven grounds are achieved, which improves the Plants absorb and utilize fertilizers.
Patent Information
- Application Number
- CN202323429632.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-15
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2033-12-15
AI Technical Summary
The existing fertilization equipment is complex, has high technical requirements, high production and installation costs, and it is difficult to effectively crush uneven ground soil, affecting the absorption of fertilizers and plant growth.
A multi-functional no-till precision fertilization seeder is designed, including plowing floor assembly, soil crushing assembly and compression spring assembly. The plowing floor assembly is fertilized through plowing bracket and plow leg, and the soil crushing assembly is adapted by crushing wheels and compression springs. The undulating ground ensures stable soil breakage, and safety bolts are used to prevent equipment damage.
Efficient fertilization and soil crushing on uneven grounds are achieved, production costs are reduced, equipment structure is simplified, fertilization efficiency and plant absorption and utilization of fertilizers are improved.
Smart Images
Figure CN222216415U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sowing or fertilizing, in particular to a fertilizing assembly and a multifunctional no-tillage precision fertilizing seeder. Background Art
[0002] Fertilization refers to applying fertilizer to the soil or spraying it on plants. Fertilizer can promote seed germination, increase seed germination rate, promote seedling health, and enhance crop resistance to drought, cold, and disease. Fertilization can also increase crop yields and improve crop quality. Fertilization can produce fruits with better quality and higher yields, and improve the economic benefits of growing crops. Soil caking will lead to poor fertilization results, making it difficult for plants to absorb fertilizers well, and soil caking will make it difficult for plant roots to breathe, leading to plant death.
[0003] Therefore, during the fertilization process, the soil needs to be processed and broken up to prevent the soil from becoming compacted or to break up the already compacted soil. One technical solution in the prior art is to set a cutter wheel to break up the soil, and to achieve the effect of breaking up the soil by controlling the rotation of the cutter wheel. In addition, there is a better technical solution in the prior art, which is to set up a lifting device to connect the cutter wheel, so as to achieve the lifting and lowering of the cutter wheel and adapt to different land conditions to achieve a better effect of breaking up the soil. There is also a technical solution in the prior art, which is to achieve the effect of breaking up the soil by impacting the soil with high-pressure gas or pulse airflow. The above technical solutions in the prior art have complex equipment, high technical requirements, and high production and installation costs. Utility Model Content
[0004] In view of the technical problems of complex equipment, high technical requirements, and high production and installation costs in the prior art, the utility model provides a fertilizer assembly and a multifunctional no-tillage precision fertilizer seeder, which can fertilize and crush soil. When crushing soil, it can adapt to uneven ground and can achieve a better soil crushing effect. In addition, the utility model has a simple structure, low production cost, and is easy to use.
[0005] The utility model provides a fertilizer application assembly, comprising a plowing component, the plowing component comprising a plowing bracket, the plowing bracket being connected with a plow leg, and a fertilizer pipe being fixed to the plowing bracket or the plow leg; a soil crushing component comprising a soil crushing wheel, the soil crushing wheel being connected to the soil crushing bracket, the soil crushing bracket being connected with the plowing bracket, and the soil crushing wheel is located behind the plow leg along the direction in which the plowing component plows forward; a compression spring component is arranged between the soil crushing bracket and the plowing bracket, the compression spring component comprises a compression spring, a first push-pull plate and two second push-pull plates arranged in parallel with each other, the compression spring is sleeved outside the first push-pull plate and the second push-pull plate, the second push-pull plate is provided with a sliding hole, the first push-pull plate is fixedly connected with a limiting pin, the limiting pin passes through the sliding hole, a track is formed between the two second push-pull plates arranged in parallel with each other for the first push-pull plate to move along the axial direction of the compression spring, the first push-pull plate is connected with a first baffle plate, the second push-pull plate is connected with a second baffle plate, the compression spring is located between the first baffle plate and the second baffle plate, one of the first push-pull plate and the second push-pull plate is connected with the soil crushing bracket, and the other of the first push-pull plate and the second push-pull plate is connected with the plowing bracket.
[0006] Furthermore, the plow support is provided with a first bolt hole arranged vertically, and the plow leg is provided with a second bolt hole matching the shape of the first bolt hole, and the bolt passes through the first bolt hole and the second bolt hole to fix the plow leg and the plow support, and the plane formed along the forward direction of the plow leg is perpendicular to the axial direction of the bolt; the first bolt hole includes a plurality of vertically arranged safety bolt holes and a plurality of vertically arranged fixing bolt holes, and the aperture of the safety bolt hole is smaller than the aperture of the fixing bolt hole; the bolt includes a safety bolt and a fixing bolt, the safety bolt is installed in the safety bolt hole to fasten the plow support and the plow leg, and the fixing bolt is installed in the fixing bolt hole to fasten the plow support and the plow leg.
[0007] Furthermore, the first bolt hole includes three vertically arranged safety bolt holes and three vertically arranged fixing bolt holes, the aperture of the safety bolt hole is smaller than the aperture of the fixing bolt hole; the center line of the three safety bolt holes is parallel to the center line of the three fixing bolt holes.
[0008] Furthermore, a center line of the plurality of vertically arranged safety bolt holes intersects a center line of the plurality of vertically arranged fixing bolt holes.
[0009] Furthermore, the soil crushing wheel includes a bearing and two wheel plates arranged opposite to each other, a plurality of connecting rods are arranged between the two wheel plates, the plurality of connecting rods are fixed to the wheel plates and the plurality of connecting rods are evenly arranged along the outer circumference of the wheel plates, and the bearing is connected to the soil crushing bracket.
[0010] Furthermore, a soil retaining plate is arranged below the bearing, and the soil retaining plate is fixedly connected to the soil crushing bracket.
[0011] Furthermore, the plow leg is connected to a furrow opener, which is fixedly connected to the plow leg by a pin shaft. The furrow opener is provided with a first through hole, and the plow leg is provided with a second through hole matching the first through hole. The pin shaft is interference-connected with the first through hole and the second through hole.
[0012] Furthermore, the plowing assembly also includes an anti-entanglement plate fixedly connected to the plow leg, and the anti-entanglement plate is arranged at the front end of the plow leg along the plowing direction of the plow leg.
[0013] Furthermore, along the direction of the plow leg plowing the land, a fertilizer pipe groove is arranged at the rear end of the plow leg, and the fertilizer pipe is fixed to the fertilizer pipe groove.
[0014] The utility model provides a multifunctional no-tillage precision fertilization seeder, which comprises a fertilization assembly, a fertilizer box and a sowing assembly. The fertilizer box is arranged on a frame, and a fertilization pipe is connected to the fertilizer box.
[0015] The beneficial effects of the utility model are:
[0016] The plowing component plows the ground into a tunnel, and the fertilizer goes down into the tunnel. The soil crushing component breaks up the soil plowed by the plowing component to facilitate filling the broken soil into the tunnel, making preparations for the landfill of fertilizers and seeds and ensuring the absorption and utilization of fertilizers by plants. The compression spring component is arranged between the soil crushing support and the plowing support, and can enable the soil crushing component to adapt to the undulating ground, so that the soil crushing wheel maintains a stable pressure on the ground, thereby enabling the soil crushing wheel to have a stable and efficient soil crushing effect on the soil and break the soil.
[0017] The furrow opener is interference-connected with the plow leg through a pin shaft, which facilitates the quick replacement of the furrow opener and improves work efficiency.
[0018] A safety bolt is installed in the safety bolt hole. When the plowing assembly is subject to greater ground resistance, the safety bolt will break first, which serves as a warning and protects the entire machine from damage. After the safety bolt breaks, in one case, the equipment stops in time or the ground resistance is eliminated, and the fixing bolt still serves to fix the plow leg to the plowing bracket, and the plow leg will not fall or rotate. In another case, the ground resistance remains relatively large, and the plow leg rotates backward around the fixing bolt until it leaves the ground. As the plow leg rotates backward, the resistance gradually decreases until the resistance disappears when the plow leg leaves the ground. Since the tightening force of the fixing bolt still exists, the plow leg is fixed off the ground or the ground resistance is not greater than the tightening force of the fixing bolt, the plow leg remains stable, and the plow leg will not rotate around the fixing bolt to damage the plow leg or other parts. The driver or other personnel who discover the situation should promptly inspect or reinstall the plow leg and continue to work. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0020] Figure 1 It is a structural schematic diagram of an embodiment of a fertilization assembly.
[0021] Figure 2 It is a structural schematic diagram of an embodiment of a compression spring assembly.
[0022] Figure 3 The present invention is a schematic structural diagram of an embodiment of a multifunctional no-tillage precision fertilization seeder.
[0023] Explanation of the main reference numerals: 11. plow support; 12. plow leg; 13. furrow opener; 121. pin; 122. safety bolt; 123. fixing bolt; 124. anti-entanglement plate; 2. fertilization pipe; 31. soil crushing support; 311. soil retaining plate; 321. wheel plate; 322. connecting rod; 323. bearing; 41. compression spring; 42. first push-pull plate; 43. second push-pull plate; 44. first baffle plate; 45. second baffle plate; 46. limit pin; 5. sowing assembly. DETAILED DESCRIPTION
[0024] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.
[0025] like Figure 1 and Figure 2As shown, an embodiment of the utility model provides a fertilization assembly, including a plowing assembly, the plowing assembly includes a plowing bracket 11, the plowing bracket 11 is connected to a plow leg 12, and a fertilizer pipe 2 is fixed to the plowing bracket 11 or the plow leg 12; a soil crushing assembly includes a soil crushing wheel, the soil crushing wheel is connected to a soil crushing bracket 31, the soil crushing bracket 31 is connected to the plowing bracket 11, and along the direction in which the plowing assembly plows forward, the soil crushing wheel is located behind the plow leg 12; a compression spring assembly is arranged between the soil crushing bracket 31 and the plowing bracket 11, the compression spring assembly includes a compression spring 41, a first push-pull plate 42 and two second push-pull plates 43 arranged relatively parallel, the compression spring 41 The first push-pull plate 42 and the second push-pull plate 43 are sleeved outside, and the second push-pull plate 43 is provided with a sliding hole. The first push-pull plate 42 is fixedly connected to a limit pin 46, and the limit pin 46 passes through the sliding hole. A track is formed between the two second push-pull plates 43 arranged relatively parallel to each other for the first push-pull plate 42 to move along the axial direction of the compression spring 41. The first push-pull plate 42 is connected to a first baffle plate 44, and the second push-pull plate 43 is connected to a second baffle plate 45. The compression spring 41 is located between the first baffle plate 44 and the second baffle plate 45. One of the first push-pull plate 43 and the second push-pull plate 43 is connected to the soil crushing bracket 31, and the other is connected to the plowing bracket 11. In this embodiment, the first push-pull plate 42 and the second push-pull plate 43 are easy to process, with small error requirements, low processing accuracy, and low processing cost. Through the cooperation of the sliding hole and the limit pin 46, the sliding process is stable.
[0026] In an embodiment of the utility model, one of the first push-pull plate 42 and the second push-pull plate 43 is connected to the soil crushing bracket 31, and the other is connected to the plowing bracket 11. In one embodiment, the first push-pull plate 42 is connected to the plowing bracket 11, and the second push-pull plate 43 is connected to the soil crushing bracket 31. In this embodiment, when the soil is crushed through the soil, due to the different amount of plowed soil or the uneven road surface itself, the soil crushing bracket 31 needs to move up and down to cope with different slopes of the road surface. When the soil crushing bracket 31 moves up or down, the plowing bracket 11 and the first push-pull plate 42 can rotate relative to each other, or the soil crushing bracket 31 and the second push-pull plate 43 can rotate relative to each other, so that when the soil crushing bracket 31 moves up or down, the angle between the plowing bracket 11 and the first push-pull plate 42 or the angle between the soil crushing bracket 31 and the second push-pull plate 43 can change relative to each other, and the first push-pull plate 42 in the compression spring can move stably in the track in the second push-pull plate 43. In one embodiment, the plowing bracket 11 is bolted to the first push-pull plate 42, and the soil crushing bracket 31 is bolted to the second push-pull plate 43. The bolt connection can fix the plowing bracket 11 to the first push-pull plate 42, and also leave a rotation angle margin for the relative rotation of the plowing bracket 11 and the first push-pull plate 42 to meet the requirements of lifting or falling displacement of the soil crushing component. The soil crushing bracket 31 is bolted and fixed to the second push-pull plate 43, and also leave a rotation angle margin for the relative rotation of the soil crushing bracket 31 and the second push-pull plate 43 to meet the requirements of lifting or falling displacement of the soil crushing component. In this embodiment, the plowing bracket 11 is bolted to the first push-pull plate 42, and the soil crushing bracket 31 is bolted to the second push-pull plate 43 in the manner that matching through holes are set on the first push-pull plate 42 and the plowing bracket 11, and the bolts are fixed through the through holes with nuts, and the second push-pull plate 43 and the soil crushing bracket 31 are matched through holes, and the bolts are fixed through the through holes with nuts. In one embodiment, the first push-pull plate 42 is welded to the plowing support 11, and the second push-pull plate 43 is hinged to the soil crushing support 31. In one embodiment, the first push-pull plate 42 is bolted to the plowing support 11, and the second push-pull plate 43 is hinged to the soil crushing support 31. In one implementation, the first push-pull plate 42 is hinged to the plowing support 11, and the second push-pull plate 43 is welded to the soil crushing support 31. In one embodiment, the first push-pull plate 42 is hinged to the plowing support 11, and the second push-pull plate 43 is bolted to the soil crushing support 31. In one embodiment of the utility model, the first push-pull plate 42 is connected to the soil crushing support 31, and the second push-pull plate 43 is connected to the plowing support 11.
[0027] In one embodiment of the utility model, the plow support 11 is provided with a first bolt hole arranged vertically, and the plow leg 12 is provided with a second bolt hole matching the shape of the first bolt hole, and the bolt passes through the first bolt hole and the second bolt hole to fix the plow leg 12 and the plow support 11, and the plane formed along the forward direction of the plow leg 12 is perpendicular to the axial direction of the bolt; the first bolt hole includes a plurality of vertically arranged safety bolt holes and a plurality of vertically arranged fixing bolt holes, and the aperture of the safety bolt hole is smaller than the aperture of the fixing bolt hole; the bolt includes a safety bolt 122 and a fixing bolt 123, the safety bolt 122 is installed in the safety bolt hole to fasten the plow support 11 and the plow leg 12, and the fixing bolt 123 is installed in the fixing bolt hole to fasten the plow support 11 and the plow leg 12. A safety bolt 122 is installed in the safety bolt hole. When the plowing assembly is subjected to greater ground resistance, the safety bolt 122 breaks first, which serves as a warning and protects the entire machine from damage. After the safety bolt 122 breaks, in one case, the equipment stops in time or the ground resistance is eliminated, and the fixing bolt 123 still serves to fix the plow leg 12 to the plowing bracket 11, and the plow leg 12 will not fall or rotate. In another case, the ground resistance remains relatively large, and the plow leg 12 rotates backward around the fixing bolt 123 until it leaves the ground. As the plow leg 12 rotates backward, the resistance gradually decreases until the plow leg 12 leaves the ground and the resistance disappears. Since the tightening force of the fixing bolt 123 still exists, when the plow leg 12 is fixed off the ground or the ground resistance is not greater than the tightening force of the fixing bolt 123, the plow leg 12 remains stable and will not cause the plow leg 12 to rotate around the fixing bolt 123, causing damage to the plow leg 12 or other parts. The driver or other personnel who discover the situation should promptly inspect or reinstall the plow leg 12 and continue working.
[0028] In an embodiment of the utility model, the plow support 11 is provided with a first bolt hole arranged vertically, and the plow leg 12 is provided with a second bolt hole matching the shape of the first bolt hole. The bolt passes through the first bolt hole and the second bolt hole to fix the plow leg 12 and the plow support 11. The first bolt hole includes a safety bolt hole and a fixing bolt hole, and the aperture of the safety bolt hole is smaller than the aperture of the fixing bolt hole. In a preferred embodiment, the first bolt holes are arranged in two rows, one of which is a safety bolt hole and the other is a fixing bolt hole. The aperture of the safety bolt hole is smaller than the fixing bolt hole. When the plow leg 12 is subjected to a large force during the forward movement, the safety bolt 122 with a smaller aperture installed in the safety bolt hole with a smaller aperture breaks first, prompting the driver that a break has occurred, and there is a harder material under the ground that hinders the plow leg 12 from moving forward, which can serve as a risk warning that may cause damage to the plow assembly and protect the equipment. In an embodiment of the utility model, the number of the first bolt holes is two and they are arranged up and down, one of which is a safety bolt hole and the other is a fixing bolt hole. In this embodiment, the two bolt holes are arranged up and down so that the two bolt holes are located at two different horizontal heights. In an embodiment of the utility model, the number of first bolt holes can be two, three, four, five, etc.; the first bolt holes can be in one row, two rows, three rows, etc.; the number of first bolt holes in each row can be the same or different, preferably the same; the safety bolt 122 and the fixing bolt 123 can be at the same level or at different levels; the number of second bolt holes can be one or more, and the second bolt holes can be adapted to the number, shape, etc. of the first bolt holes, the safety bolts 122, and the fixing bolts 123.
[0029] In one embodiment, the first bolt holes include three vertically arranged safety bolt holes and three vertically arranged fixing bolt holes, the diameter of the safety bolt holes is smaller than the diameter of the fixing bolt holes; the center line of the three safety bolt holes is parallel to the center line of the three fixing bolt holes; one second bolt hole corresponding to the safety bolt hole is opened on the plow leg 12, and one second bolt hole corresponding to the fixing bolt hole is opened on the plow leg 12. By selecting different first bolt holes for installation through the second bolt holes on the plow leg, the plow leg 12 has different heights, thereby obtaining different plowing depths, so that the plowing depth can be adjusted to meet the needs of different crop planting.
[0030] In one embodiment, the center line of the plurality of vertically arranged safety bolt holes intersects the center line of the plurality of vertically arranged fixing bolt holes. In a preferred embodiment, there are three safety bolt holes, three fixing bolt holes, one corresponding second bolt hole corresponding to the safety bolt hole, and three second bolt holes corresponding to the fixing bolt hole. By selecting different first bolt holes, different heights of the plow legs 12 are obtained, thereby adjusting the plowing depth to meet the needs of different crops.
[0031] In an embodiment of the utility model, the soil crushing bracket 31 is hingedly connected to the plowing bracket 11, and the soil crushing bracket 31 can rotate relative to the plowing bracket 11; or, the soil crushing bracket 31 and the plowing bracket 11 are provided with matching bolt holes, and bolts are passed through the bolt holes to connect the soil crushing bracket 31 and the plowing bracket 11, and the soil crushing bracket 31 and the plowing bracket 11 can rotate relative to each other around the bolts and the soil crushing bracket 31 and the plowing bracket 11 can also generate a stable connection through the bolts.
[0032] A furrow opener 13 is provided at the front end of the plow leg 12, and the land is plowed open by the sharpness of the furrow opener 13. The fertilizer is behind the plow leg 12, and the fertilizer falls into the plowed fertilizer path through the fertilizer pipe 2. During the plowing process of the plow leg 12, the furrow opener 13 goes deep into the ground, and the two sides of the channel plowed open by the plow leg 12 are the soil plowed out by the plow leg 12. The soil crushing assembly is provided at the rear, and the soil crushing wheel crushes the soil. A compression spring 41 assembly is provided between the soil crushing bracket 31 and the plowing bracket 11. During the process of the soil crushing assembly moving forward to crush the soil, as the ground slope changes, the compression spring 41 in the compression spring 41 assembly expands and contracts to make the soil crushing wheel rise or fall so that the soil crushing wheel can adapt to the uneven ground. When the soil is accumulated more and the ground slope becomes larger, the compression spring 41 is compressed, so that the soil crushing wheel has greater pressure to crush the soil, thereby improving the soil crushing effect.
[0033] In the embodiment of the utility model, the fertilizer pipe 2 can be fixed to the plow leg 12, and can also be fixed to the plow support 11. In a preferred embodiment, along the plow leg 12 plowing direction, the rear end of the plow leg 12 is provided with a fertilizer pipe groove, and the fertilizer pipe 2 is fixed to the fertilizer pipe groove. The fertilizer pipe groove is provided behind the plow leg 12, which can protect the fertilizer pipe 2 and ensure the normal operation of the fertilization operation.
[0034] In one embodiment of the utility model, the soil crushing wheel includes a bearing 323 and two wheel plates 321 arranged opposite to each other. The centers of the two wheel plates 321 are connected by the bearing 323. A plurality of connecting rods 322 are arranged between the two wheel plates 321. The plurality of connecting rods 322 are fixed to the wheel plates 321 and the plurality of connecting rods 322 are evenly arranged circumferentially along the edge area of the wheel plates 321. The bearing 323 is connected to the soil crushing bracket 31. The connecting rods 322 are fixedly connected to the wheel plates 321, for example, by welding or bolting. In a preferred embodiment, a retaining plate 311 is arranged below the bearing 323. The retaining plate 311 is fixedly connected to the soil crushing bracket 31. The retaining plate 311 can prevent the bearing 323 from hanging on straw or entering the soil during the forward fertilization process.
[0035] In one embodiment of the utility model, the plow leg 12 is connected with a furrow opener 13, and the furrow opener 13 is fixedly connected to the plow leg 12 through a pin 121. The furrow opener 13 is provided with a first through hole, and the plow leg 12 is provided with a second through hole matching the first through hole, and the pin 121 is interference-connected with the first through hole and the second through hole. In this embodiment, the furrow opener 13 is a plow tip with a sharp point, and the plow tip breaks the ground so that the plow leg 12 is inserted into the soil. The furrow opener 13 is interference-connected with the plow leg 12 through the pin 121, and the connection is relatively stable. When the plow tip is worn to the extent that it needs to be replaced, it is only necessary to knock off the pin 121 and replace a new furrow opener 13 to achieve rapid replacement. The furrow opener 13 is easy to replace. During the operation, rapid replacement of the furrow opener 13 can improve work efficiency. In addition, it is also convenient to replace the furrow opener 13 for operation on different land.
[0036] In one embodiment of the utility model, the plowing assembly further includes an anti-entanglement plate 124 fixedly connected to the plow leg 12, and the anti-entanglement plate 124 is arranged at the front end of the plow leg 12 along the plowing direction of the plow leg 12. In this embodiment, the anti-entanglement plate 124 is a curved plate with a smooth surface, which can effectively prevent the straw from being entangled with the plow leg 12, thereby ensuring the normal use of the equipment.
[0037] The utility model also provides a multifunctional no-tillage precision fertilization seeder, which also includes a fertilizer box and a sowing assembly 5. The fertilizer box is arranged on the frame, and the fertilizer pipe 2 is connected to the fertilizer box.
[0038] Although the present invention is described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, a person skilled in the art may make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions shall be within the scope of the present invention. Any person skilled in the art who is familiar with the present technical field may easily think of changes or substitutions within the technical scope disclosed in the present invention, and these shall be within the scope of protection of the present invention.
Claims
1. A fertilization assembly, comprising a plowing assembly and a soil crushing assembly, characterized in that: The plowing assembly comprises a plowing support, the plowing support is connected with a plow leg, and a fertilizer pipe is fixed to the plowing support or the plow leg; The soil crushing assembly comprises a soil crushing wheel, which is connected to a soil crushing bracket, and the soil crushing bracket is connected to a plowing bracket. Along the direction in which the plowing assembly plows forward, the soil crushing wheel is located behind the plow leg; The compression spring assembly is also included, and the compression spring assembly is arranged between the soil crushing bracket and the plowing bracket. The compression spring assembly includes a compression spring, a first push-pull plate and two second push-pull plates arranged relatively parallel. The compression spring is sleeved outside the first push-pull plate and the second push-pull plate. The second push-pull plate is provided with a sliding hole. The first push-pull plate is fixedly connected to a limiting pin, and the limiting pin passes through the sliding hole. A track is formed between the two second push-pull plates arranged relatively parallel for the first push-pull plate to move along the axial direction of the compression spring. The first push-pull plate is connected to a first baffle plate, and the second push-pull plate is connected to a second baffle plate. The compression spring is located between the first baffle plate and the second baffle plate. One of the first push-pull plate and the second push-pull plate is connected to the soil crushing bracket, and the other one is connected to the plowing bracket.
2. A fertilization assembly as claimed in claim 1, characterized in that: The plow support is provided with a first bolt hole arranged vertically, and the plow leg is provided with a second bolt hole matching the shape of the first bolt hole. The bolt passes through the first bolt hole and the second bolt hole to fix the plow leg and the plow support, and the plane formed along the advancing direction of the plow leg is perpendicular to the axial direction of the bolt. The first bolt holes include a plurality of vertically arranged safety bolt holes and a plurality of vertically arranged fixing bolt holes, wherein the hole diameters of the safety bolt holes are smaller than the hole diameters of the fixing bolt holes; The bolts include safety bolts and fixing bolts. The safety bolts are installed in the safety bolt holes to fasten the plow support and the plow leg. The fixing bolts are installed in the fixing bolt holes to fasten the plow support and the plow leg.
3. A fertilization assembly as claimed in claim 2, characterized in that: The first bolt holes include three vertically arranged safety bolt holes and three vertically arranged fixing bolt holes, the aperture of the safety bolt holes is smaller than the aperture of the fixing bolt holes; the center line of the three safety bolt holes is parallel to the center line of the three fixing bolt holes.
4. A fertilization assembly as claimed in claim 2, characterized in that: A center line of a plurality of vertically arranged safety bolt holes intersects a center line of a plurality of vertically arranged fixing bolt holes.
5. A fertilization assembly as claimed in claim 1, characterized in that: The soil crushing wheel includes a bearing and two wheel plates arranged opposite to each other. A plurality of connecting rods are arranged between the two wheel plates. The plurality of connecting rods are fixed to the wheel plates and are evenly arranged circumferentially along the edge area of the wheel plates. The bearing is connected to the soil crushing bracket.
6. A fertilization assembly as claimed in claim 5, characterized in that: A soil retaining plate is arranged below the bearing and is fixedly connected to the soil crushing bracket.
7. A fertilization assembly as claimed in claim 1, characterized in that: The plow leg is connected with a furrow opener, which is fixedly connected to the plow leg through a pin shaft. The furrow opener is provided with a first through hole, and the plow leg is provided with a second through hole matching the first through hole. The pin shaft is interference connected with the first through hole and the second through hole.
8. A fertilization assembly as claimed in claim 1, characterized in that: The plowing assembly also includes an anti-entanglement plate fixedly connected to the plow leg. Along the plowing direction of the plow leg, the anti-entanglement plate is arranged at the front end of the plow leg.
9. A fertilization assembly as claimed in claim 1, characterized in that: Along the direction of the plow leg plowing the land, a fertilizer pipe groove is arranged at the rear end of the plow leg, and the fertilizer pipe is fixed in the fertilizer pipe groove.
10. A multifunctional no-tillage precision fertilization seeder, comprising a fertilization assembly as described in any one of claims 1 to 9, and also comprising a fertilizer box and a sowing assembly, wherein the fertilizer box is arranged on a frame, and a fertilization pipe is connected to the fertilizer box.