Low-resistance no-tillage seeding monomer

Abstract

The utility model discloses a low-resistance no-tillage seeding unit which comprises a seeding and ditching mechanism, and the seeding and ditching mechanism comprises a main frame body, a seed box seeding assembly arranged above the main frame body, a depth limiting assembly arranged on one side of the main frame body, a seeding and ditching disc arranged below the main frame body and depth limiting wheels arranged on the two sides of the depth limiting assembly; the profiling mechanism is mounted at the upper half part of one side of the seeding and ditching mechanism; the low-resistance stubble cleaning and soil loosening mechanism is also mounted at the lower half part of one side of the seeding and ditching mechanism; the mouth fertilizer applying mechanism is mounted at the upper half part of the other side of the seeding and ditching mechanism; the soil covering and pressing mechanism is mounted at the lower half part of the other side of the seeding and ditching mechanism. According to the utility model, the low-resistance tooth-shaped disc stubble breaking cutter is adopted, so that the traction resistance and the power consumption can be reduced by 12% and the soil disturbance quantity can be reduced by 9% on the premise of meeting stubble cutting and soil loosening.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology. Specifically, this utility model relates to a low-resistance no-till seeding unit. Background Art

[0002] No-till planters are machines that replace manual steps such as sowing, fertilizing, and tilling in one step. They are specifically used for cash crops suitable for large-scale planting, such as corn, soybeans, potatoes, and garlic. No-till planters mainly include corn planters, soybean planters, garlic planters, potato planters, etc. They are mainly designed to solve the problems of insufficient rural labor and labor costs, and to expand the agricultural planting area and the level of mechanization.

[0003] Currently, the soil layer of cultivated land in Northeast China has decreased from about 60 centimeters at the beginning of reclamation to 20 to 30 centimeters, a decrease of 0.3-1.0 centimeters per year (on terraces and slopes). If no measures are taken to protect it, the phenomenon of the ancient Loulan will soon occur. Protecting cultivated land is urgent. Therefore, my country launched the "Black Soil Conservation Tillage Action Plan" in 2020.

[0004] Traditional farming methods often require large-scale tilling of the land, which not only damages the soil structure but also consumes a lot of energy. Utility Model Content

[0005] This invention provides a low-resistance no-till seeding unit, which solves the problems mentioned in the background art.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a low-resistance no-till seeding unit, including a seeding and furrowing mechanism, wherein the seeding and furrowing mechanism includes a main frame, a seed box and seeding assembly installed on the top of the main frame, a depth limiting assembly installed on one side of the main frame, a seeding and furrowing disc installed below the main frame, and depth limiting wheels installed on both sides of the depth limiting assembly.

[0007] It also includes: a contouring mechanism, which is installed on the upper half of one side of the seeding and furrowing mechanism;

[0008] A low-resistance stubble clearing and soil loosening mechanism is also installed on the lower half of one side of the sowing and furrowing mechanism.

[0009] A fertilizer application mechanism is installed on the upper half of the other side of the sowing and furrowing mechanism;

[0010] A soil covering and compaction mechanism is installed on the lower half of the other side of the sowing and furrowing mechanism.

[0011] Preferably, the seed box and seed metering assembly includes a seed box, a screen installed inside the seed box, a finger-clamp seed metering device installed at the lower outlet of the seed box, side plates installed on both sides of the bottom, and a connecting plate for connecting the side plates and the main frame.

[0012] Preferably, the depth limiting component includes an adjustment frame, an adjuster adapted to the adjustment frame, and a support arm for connecting the depth limiting wheel and the adjustment frame.

[0013] Preferably, the contouring mechanism includes a front mounting plate, two sets of U-bolts mounted on one side of the mounting plate, two sets of upper connecting rods mounted on the top of one side of the mounting plate, two sets of lower connecting rods mounted on the bottom of one side of the mounting plate, a tension spring positioning shaft mounted between the two sets of upper connecting rods, a tension spring fixing shaft mounted between the two sets of lower connecting rods, and a tension spring disposed between the tension spring positioning shaft and the tension spring fixing shaft.

[0014] The two sets of upper connecting rods and the two sets of lower connecting rods are all fixedly connected by connecting pipes.

[0015] Preferably, the low-resistance stubble clearing and loosening mechanism includes a fixed frame connected to the main frame, a low-resistance toothed disc stubble cutter rotatably connected to the fixed frame via a bearing seat, a weed-removing wheel adjusting upper arm disposed on the outside of the fixed frame, weed-removing wheel adjusting side arms mounted on both sides of the weed-removing wheel adjusting upper arm, a weed-removing wheel mounted on the front end of the weed-removing wheel adjusting side arm via a bearing seat, a cam mounted on the fixed frame, a positioning block rotatably connected to the cam via a camshaft and fixedly connected to the weed-removing wheel adjusting upper arm, and a positioning pin disposed through the positioning block;

[0016] The cam has positioning holes arranged in a circle, and a compression spring is sleeved on the camshaft.

[0017] Preferably, the fertilizer application mechanism includes two sets of support plates connected to the side plate, a pad installed between the two sets of support plates, a fertilizer box installed above the pad, a fertilizer discharge box installed below the fertilizer box, and a fertilizer guide pipe communicating with the bottom of the fertilizer discharge box.

[0018] The fertilizer box is equipped with a fertilizer box screen inside.

[0019] Preferably, the soil compaction mechanism includes a compaction wheel connecting seat connected to the adjusting frame, a compaction wheel adjusting frame installed on the compaction wheel connecting seat, an adjusting groove opened on the compaction wheel adjusting frame, an adjusting handle corresponding to the adjusting groove, an adjusting frame tension spring seat installed at the bottom of the adjusting handle, compaction wheels installed on both sides of the adjusting frame tension spring seat, and a cylindrical tension spring installed between the compaction wheel connecting seat and the adjusting handle.

[0020] The beneficial effects of adopting the above technical solutions are:

[0021] I. This solution is applicable to flat planting, no-till planting, ridge planting, no-till planting on ridges, wide and narrow row planting, no-till planting on the side of ridges, and conventional planting under conditions of corn stalk mulching, root stubble mulching, or after tillage. During operation, it can complete the processes of cutting straw in the seedbed, pre-ditching, clearing straw from the seedbed, tidying and compacting the seedbed, furrowing and sowing, applying fertilizer, compressing and covering with soil, and heavy compaction in one operation. The main feature of the patent is the use of a low-resistance toothed disc stubble cutter. While meeting the requirements of stubble cutting and loosening the soil, the toothed structure can reduce traction resistance and power consumption by 12%, and reduce soil disturbance by 9%.

[0022] Second, through the combined action of the low-resistance toothed disc stubble cutter and the weed-removing wheel in the low-resistance stubble-clearing and loosening mechanism, the straw and root stubble on the seedbed are effectively cut off. At the same time, the soil disturbance is reduced while ensuring the loosening effect, which is conducive to protecting the soil structure and improving soil fertility.

[0023] Third, the soil compaction mechanism allows for adjustable compaction pressure, ensuring thorough contact between the soil and seeds so that they can absorb nutrients from the soil. After compaction, small furrows are left on the ridges, which help retain water and improve seed germination rate. Attached Figure Description

[0024] Figure 1 It is an assembly diagram of a low-resistance no-till seeding unit;

[0025] Figure 2 This is an assembly diagram of a low-resistance no-till seeding unit from another perspective;

[0026] Figure 3 This is a front view of a single low-resistance no-till seeding unit;

[0027] Figure 4 This is a side view of a low-resistance no-till seeding unit;

[0028] Figure 5 It is an assembly drawing of the trenching mechanism;

[0029] Figure 6 This is an assembly drawing of the trenching mechanism from another perspective;

[0030] Figure 7 It is an assembly drawing of the depth-limited component;

[0031] Figure 8 It is an assembly drawing of the copying mechanism;

[0032] Figure 9 This is an assembly drawing of the contouring mechanism from another perspective;

[0033] Figure 10 This is an assembly diagram of a low-resistance stubble clearing and soil loosening mechanism;

[0034] Figure 11This is an assembly diagram of the low-resistance stubble clearing and soil loosening mechanism from another perspective;

[0035] Figure 12 It is an assembly drawing of the fertilizer application mechanism;

[0036] Figure 13 This is an assembly diagram of the fertilizer application mechanism from another perspective;

[0037] Figure 14 It is an assembly drawing of the soil covering and compaction mechanism;

[0038] Figure 15 This is an assembly diagram of the soil covering and compaction mechanism from another perspective;

[0039] Figure 16 This is a front view of the transmission mechanism;

[0040] in:

[0041] 1. Furrowing mechanism; 11. Main frame; 12. Seed box and seed metering assembly; 121. Seed box; 122. Screen; 123. Finger-clamp seed metering device; 124. Side plate; 125. Connecting plate; 13. Depth limiting assembly; 131. Adjusting frame; 132. Depth limiting wheel; 133. Support arm; 14. Sowing and furrowing tray; 15. Depth limiting wheel;

[0042] 2. Contouring mechanism; 21. Mounting plate; 22. U-bolt; 23. Upper connecting rod; 24. Lower connecting rod; 25. Tension spring positioning shaft; 26. Tension spring fixing shaft; 27. Tension spring;

[0043] 3. Low-resistance stubble clearing and soil loosening mechanism; 31. Fixing frame; 32. Low-resistance toothed disc stubble cutter; 33. Upper arm for adjusting the weeding wheel; 34. Weeding wheel; 35. Cam; 36. Positioning block; 37. Positioning pin; 38. Side arm for adjusting the weeding wheel;

[0044] 4. Fertilizer application mechanism; 41. Tray; 42. Pad; 43. Fertilizer box; 44. Fertilizer discharge box; 45. Fertilizer delivery pipe;

[0045] 5. Soil compaction mechanism; 51. Compactor wheel connecting seat; 52. Compactor wheel adjusting frame; 53. Adjusting groove; 54. Adjusting handle; 55. Adjusting frame tension spring seat; 56. Compactor wheel; 57. Cylindrical tension spring. DETAILED DESCRIPTION

[0046] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, in order to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solution of this utility model, and to facilitate its implementation.

[0047] Specifically, such as Figures 1 to 15As shown, a low-resistance no-till seeding unit includes a seeding and furrowing mechanism 1, which includes a main frame 11, a seed box and seeding assembly 12 installed above the main frame 11, a depth limiting assembly 13 installed on one side of the main frame 11, a seeding and furrowing disc 14 installed below the main frame 11, and depth limiting wheels 15 installed on both sides of the depth limiting assembly 13.

[0048] It should be noted that both the depth limiting wheel 15 and the sowing and furrowing plate 14 are equipped with scraping blades, and the depth limiting wheel 15 and the sowing and furrowing plate 14 are staggered to prevent mutual obstruction. The main frame 11 is formed by integral casting.

[0049] In addition, a transmission mechanism is provided between the contouring mechanism 2 and the seed box metering assembly 12, which mainly consists of a drive sprocket, a clutch sprocket, a chain, a tension wheel, and standard connecting parts; it is mainly responsible for transmitting power and driving the metering device to work.

[0050] It also includes: a contouring mechanism 2, which is installed on the upper half of one side of the sowing and furrowing mechanism 1; a low-resistance stubble clearing and loosening mechanism 3, which is also installed on the lower half of one side of the sowing and furrowing mechanism 1; a fertilizer application mechanism 4, which is installed on the upper half of the other side of the sowing and furrowing mechanism 1; and a soil covering and compaction mechanism 5, which is installed on the lower half of the other side of the sowing and furrowing mechanism 1.

[0051] It should be noted that the sowing and furrowing mechanism 1 adjusts the position of the depth-limiting wheel according to needs, thereby controlling the sowing depth and achieving uniform seedling emergence; the contouring mechanism 2 can adjust the position of the parallel four-bar linkage spring according to various sowing plot conditions, controlling the contouring of the parallel four-bar linkage and the ground pressure of the individual unit; the low-resistance stubble clearing and loosening mechanism 3 can adjust the assembly position of the low-resistance toothed disc stubble-breaking knife and the assembly height of the finger-mounted weed-removing wheel as needed, thereby achieving good stubble breaking, loosening, and seedbed cleaning effects; the fertilizer application mechanism 4 can adjust the amount of fertilizer applied as needed, mainly to provide sufficient nutrients during seed germination, thereby promoting full and strong seedlings and increasing grain yield; the soil covering and compaction mechanism 5 can adjust the compaction pressure to compact the soil and ensure full contact with the seeds so that the seeds can absorb nutrients from the soil.

[0052] In this embodiment, while protecting the environment, we also need to ensure grain yield. No-till planters play an important role in protecting the environment and increasing production and income. The no-till planter unit is the core component of the no-till planter and a drag-reducing component. It ensures the planting effect of the planter unit and reduces resistance during operation. It can reduce the horsepower of the matching tractor and increase the operating speed of the no-till planter.

[0053] Benefits of conservation tillage:

[0054] 1. Protect arable land. Covering the ground with straw is like putting a blanket on the earth, reducing wind erosion and preventing water erosion during rainfall. Implementing this technology can reduce runoff by an average of 60% and soil erosion by more than 80%.

[0055] 2. Improve soil fertility. With continuous straw mulching and returning to the field, soil organic matter shows an increasing trend; the total nitrogen, total phosphorus, total potassium, as well as available nitrogen, available phosphorus, and available potassium in the soil will also increase. Organic matter accumulation is mainly in the top 0-5 cm layer. After 5 years of no-till farming with full straw mulching, soil organic matter can increase by about 20%, and the amount of chemical fertilizer used can be reduced by about 20%.

[0056] 3. Water retention. Straw mulch protects the soil's infiltration capacity and also prevents runoff, allowing more rainwater to be retained in the topsoil.

[0057] Straw mulch on the ground blocks sunlight and reduces soil moisture evaporation.

[0058] 4. Improve soil biological properties. Returning straw to the field provides ample food for soil organisms; the reduction in the number of tillage operations protects soil organisms.

[0059] 5. Environmental protection. Large-scale implementation can effectively suppress sandstorms. In addition, it effectively avoids air pollution caused by burning straw.

[0060] 6. Energy conservation and emission reduction. Reduced workload and lower labor intensity mean fewer machine visits to the field (3-5 times), resulting in approximately one-third less fuel consumption. In fields where straw has been returned to the field for more than 5 years, the decomposing straw releases nutrients annually, reducing fertilizer application by about 20% each year while maintaining stable and high grain yields. Completely resolving straw burning also reduces smoke pollution and carbon emissions.

[0061] The seed box and seed metering assembly 12 includes a seed box 121, a screen 122 installed inside the seed box 121, a finger-clamp seed metering device 123 installed at the lower outlet of the seed box 121, side plates 124 installed on both sides of the bottom, and a connecting plate 125 for connecting the side plates 124 and the main frame 11.

[0062] It should be noted that the seed box 121 is equipped with a box cover, and the finger clamp seed metering device 123 is existing technology. It is mainly used for precision seeding of crops such as corn and soybeans, which can significantly improve the efficiency and accuracy of seeding, thereby helping to increase agricultural production and income. Structurally, the finger clamp seed metering device is usually composed of key components such as finger clamp assembly, spring, and seed guide tube.

[0063] The depth limiting component 13 includes an adjustment frame 131, an adjuster 132 adapted to the adjustment frame 131, and a support arm 133 for connecting the depth limiting wheel 15 and the adjustment frame 131.

[0064] It should be noted that the adjustment frame 131 has an adjustment groove for the adjuster 132 to move, and is set with several levels, with the depth limiting wheel 15 synchronously following the shape.

[0065] The contouring mechanism 2 includes a front mounting plate 21, two sets of U-bolts 22 mounted on one side of the mounting plate 21, two sets of upper connecting rods 23 mounted on the top of one side of the mounting plate 21, two sets of lower connecting rods 24 mounted on the bottom of one side of the mounting plate 21, a tension spring positioning shaft 25 mounted between the two sets of upper connecting rods 23, a tension spring fixing shaft 26 mounted between the two sets of lower connecting rods 24, and a tension spring 27 disposed between the tension spring positioning shaft 25 and the tension spring fixing shaft 26.

[0066] The two sets of upper connecting rods 23 and the two sets of lower connecting rods 24 are all fixedly connected by connecting pipes.

[0067] It should be noted that the contouring mechanism 2 adjusts the position of the parallel four-bar tension spring according to the conditions of various planting plots, thereby controlling the contouring of the parallel four-bar and the pressure of the individual unit on the ground.

[0068] The low-resistance stubble clearing and loosening mechanism 3 includes a fixed frame 31 connected to the main frame 11, a low-resistance toothed disc stubble cutter 32 rotatably connected to the fixed frame 31 via a bearing seat, a weed-removing wheel adjusting upper arm 33 located on the outside of the fixed frame 31, a weed-removing wheel adjusting side arm 38 installed on both sides of the weed-removing wheel adjusting upper arm 33, a weed-removing wheel 34 installed at the front end of the weed-removing wheel adjusting side arm 38 via a bearing seat, a cam 35 installed on the fixed frame 31, a positioning block 36 rotatably connected to the cam 35 via a camshaft and fixedly connected to the weed-removing wheel adjusting upper arm 33, and a positioning pin 37 provided through the positioning block 36.

[0069] The cam 35 has positioning holes arranged in a circle, and a compression spring is sleeved on the cam shaft.

[0070] It should be noted that when adjustment is required, first move the upper arm 33 of the grass-removing wheel to the side of the compression spring, so that the positioning block 36 drives the positioning pin 37 to disengage from the positioning hole on the cam 35, and then lift it upward. After the movement is completed, the positioning pin 37 is pressed back into the positioning hole by the elastic force of the compression spring, thereby completing the adjustment of the grass-removing wheel 34.

[0071] The fertilizer application mechanism 4 includes two sets of support plates 41 connected to the side plate 124, a pad 42 installed between the two sets of support plates 41, a fertilizer box 43 installed above the pad 42, a fertilizer discharge box 44 installed below the fertilizer box 43, and a fertilizer guide pipe 45 connected to the bottom of the fertilizer discharge box 44.

[0072] The fertilizer box 43 is equipped with a fertilizer box screen inside.

[0073] It should be noted that the fertilizer discharge box 44 is also existing technology and is usually installed in a key part of the seeder. It is responsible for accurately and evenly discharging fertilizer into the soil. The fertilizer guide tube 45 has a stretchable hose in the middle.

[0074] The soil compaction mechanism 5 includes a compaction wheel connecting seat 51 connected to the adjusting frame 131, a compaction wheel adjusting frame 52 installed on the compaction wheel connecting seat 51, an adjusting groove 53 opened on the compaction wheel adjusting frame 52, an adjusting handle 54 corresponding to the adjusting groove 53, an adjusting frame tension spring seat 55 installed at the bottom of the adjusting handle 54, compaction wheels 56 installed on both sides of the adjusting frame tension spring seat 55, and a cylindrical tension spring 57 installed between the compaction wheel connecting seat 51 and the adjusting handle 54.

[0075] It should be noted that the soil compaction mechanism 5 compacts the soil and ensures that the seeds are in close contact with the moist soil. The compaction pressure can be adjusted by moving the adjustment handle 54 to adjust the compaction wheel 56.

[0076] The two sets of rollers 56 are arranged in a V-shape for good compaction effect. The compaction pressure can be adjusted to compact the soil and ensure full contact with the seeds so that the seeds can absorb nutrients from the soil. After compaction, small furrows will be left on the ridges, which can retain water and improve the seed germination rate.

[0077] The specific working method is described below using specific embodiments: Example 1

[0078] The unit is attached to the frame of the no-till seeder via the contouring mechanism 2. As the machine moves forward, under the control of the depth limiting wheel 14, the seed furrow is opened by the seeding furrowing disc 14. Seeds in the seed box 121 fall into the finger-clamp seed metering device 123, and then are discharged from the finger-clamp seed metering device 123. The seeds then fall from the outlet into the gap of the seeding furrowing disc 14 and onto the ground, where they are sown in the seed furrow. The soil covering and compaction mechanism 5 compacts the soil covering the seed bed above the seed furrow. During operation, the machine can complete the processes of cutting straw on the seed bed, pre-furrowing, clearing straw from the seed bed, tidying and compacting the seed bed, furrowing and sowing, applying fertilizer, compressing and covering the soil, and heavy compaction in one operation. The main feature of this patent is the use of a low-resistance toothed disc stubble cutter. While meeting the requirements of stubble cutting and loosening the soil, the toothed structure can reduce traction resistance and power consumption by 12% and reduce soil disturbance by 9%. Example 2

[0079] As the individual unit moves forward with the whole machine, the low-resistance toothed disc stubble cutter 32 and the weeding wheel 34 in the low-resistance stubble clearing and loosening mechanism 3 effectively cut the straw and root stubble on the seedbed. It can also reduce soil disturbance while ensuring the loosening effect, which is conducive to protecting the soil structure and improving soil fertility.

[0080] The present invention has been described above by way of example with reference to the accompanying drawings. Obviously, the specific implementation of the present invention is not limited to the above-described manner. Any non-substantial improvements made by adopting the inventive concept and technical solution of the present invention, or the direct application of the inventive concept and technical solution to other situations without modification, are all within the protection scope of the present invention.

Claims

1. A low-resistance no-till seeding unit, characterized in that, The sowing and furrowing mechanism (1) includes a main frame (11), a seed box and seed distribution assembly (12) installed on the top of the main frame (11), a depth limiting assembly (13) installed on one side of the main frame (11), a sowing and furrowing disc (14) installed below the main frame (11), and depth limiting wheels (15) installed on both sides of the depth limiting assembly (13). Also includes: The contouring mechanism (2) is installed on the upper half of one side of the sowing and furrowing mechanism (1); The low-resistance stubble clearing and soil loosening mechanism (3) is also installed on the lower half of one side of the sowing and ditching mechanism (1); Fertilizer application mechanism (4), which is installed on the upper half of the other side of the sowing and furrowing mechanism (1); The soil covering and compaction mechanism (5) is installed on the lower half of the other side of the sowing and ditching mechanism (1).

2. The low-resistance no-till seeding unit according to claim 1, characterized in that: The seed box and seed metering assembly (12) includes a seed box (121), a screen (122) installed inside the seed box (121), a finger-clamp seed meterer (123) installed at the lower outlet of the seed box (121), side plates (124) installed on both sides of the bottom, and a connecting plate (125) for connecting the side plates (124) and the main frame (11).

3. The low-resistance no-till seeding unit according to claim 1, characterized in that: The depth limiting assembly (13) includes an adjustment frame (131), an adjuster (132) adapted to the adjustment frame (131), and a support arm (133) for connecting the depth limiting wheel (15) and the adjustment frame (131).

4. The low-resistance no-till seeding unit according to claim 1, characterized in that: The contouring mechanism (2) includes a front mounting plate (21), two sets of U-bolts (22) mounted on one side of the mounting plate (21), two sets of upper connecting rods (23) mounted on the top of one side of the mounting plate (21), two sets of lower connecting rods (24) mounted on the bottom of one side of the mounting plate (21), a tension spring positioning shaft (25) mounted between the two sets of upper connecting rods (23), a tension spring fixing shaft (26) mounted between the two sets of lower connecting rods (24), and a tension spring (27) disposed between the tension spring positioning shaft (25) and the tension spring fixing shaft (26). The two sets of upper connecting rods (23) and the two sets of lower connecting rods (24) are all fixedly connected by connecting pipes.

5. The low-resistance no-till seeding unit according to claim 1, characterized in that: The low-resistance stubble clearing and loosening mechanism (3) includes a fixed frame (31) connected to the main frame (11), a low-resistance toothed disc stubble cutter (32) rotatably connected to the fixed frame (31) via a bearing seat, a weeding wheel adjusting upper arm (33) set on the outside of the fixed frame (31), weeding wheel adjusting side arms (38) installed on both sides of the weeding wheel adjusting upper arm (33), a weeding wheel (34) installed at the front end of the weeding wheel adjusting side arm (38) via a bearing seat, a cam (35) installed on the fixed frame (31), a positioning block (36) rotatably connected to the cam (35) via a camshaft and fixedly connected to the weeding wheel adjusting upper arm (33), and a positioning pin (37) set through the positioning block (36). The cam (35) has positioning holes arranged in a circle, and a compression spring is sleeved on the cam shaft.

6. The low-resistance no-till seeding unit according to claim 2, characterized in that: The fertilizer application mechanism (4) includes two sets of support plates (41) connected to the side plate (124), a pad (42) installed between the two sets of support plates (41), a fertilizer box (43) installed above the pad (42), a fertilizer discharge box (44) installed below the fertilizer box (43), and a fertilizer guide pipe (45) connected to the bottom of the fertilizer discharge box (44). The fertilizer box (43) is equipped with a fertilizer box screen inside.

7. The low-resistance no-till seeding unit according to claim 3, characterized in that: The soil compaction mechanism (5) includes a compaction wheel connecting seat (51) connected to the adjusting frame (131), a compaction wheel adjusting frame (52) installed on the compaction wheel connecting seat (51), an adjusting groove (53) opened on the compaction wheel adjusting frame (52), an adjusting handle (54) corresponding to the adjusting groove (53), an adjusting frame tension spring seat (55) installed at the bottom of the adjusting handle (54), a compaction wheel (56) installed on both sides of the adjusting frame tension spring seat (55), and a cylindrical tension spring (57) installed between the compaction wheel connecting seat (51) and the adjusting handle (54).

Images