Deep tillage and fertilization machines

Abstract

A deep tillage and fertilization machine includes a deep tillage component for deep tillage of soil, a fertilizer output component for outputting liquid fertilizer, and a gear transmission component respectively connected to the deep tillage component and the fertilizer output component, wherein the gear transmission component is connected to a power device to obtain power, and is characterized in that: the fertilizer output component is connected to the deep tillage component to form a material guide passage, and the material guide passage guides the fertilizer output from the fertilizer output component into the deep tillage soil as the deep tillage component moves. When the present invention performs deep tillage on the soil, the fertilizer is introduced into the soil layer from top to bottom as the deep tillage component goes deeper, forming deep fertilization along the deep tillage path of the soil, combining the deep tillage and deep fertilization structures together, realizing the synchronous action of deep tillage and deep fertilization, improving the reliability, efficiency and automation level of deep tillage and deep fertilization, improving the mixing effect of soil and fertilizer, extending the duration of soil fertility, and providing a high-quality soil environment for crops.

Description

Technical Field

[0001] The invention relates to a deep tillage and fertilization machine, belonging to the technical field of automated agricultural tools. Background Art

[0002] Traditional loosening has the following disadvantages: 1. It does not have deep loosening function and cannot be deep loosened; 2. Shallow fertilization is close to the seeds, and chemical fertilizers are easy to burn seeds and seedlings, so only a small amount of fertilizer can be applied, and the fertility of such fertilizers cannot meet the growth of seeds; 3. Long-term shallow tillage of the soil will form a harder bottom layer, which makes it difficult for crop roots to grow and fresh water to infiltrate. When it rains heavily, a large amount of fresh water resources will be lost, resulting in a waste of fresh water resources. Deep loosening can deepen the tillage layer, break the previous plow bottom layer, improve the soil structure, increase the depth of the tillage layer, loosen the soil, increase air permeability, and improve the soil's water storage capacity, prompt the crop roots to go down, and improve the crop's ability to resist drought and lodging. Deep fertilization can fully mix fertilizer with soil, accelerate the release of organic fertilizers, improve fertilization effects, reduce unnecessary nutrient loss, facilitate crop absorption, and have a more lasting fertility. According to experimental comparisons, the water storage capacity of land after deep loosening is twice that of shallow tillage, which can greatly promote crop yields. Therefore, deep tillage and deep fertilization of farmland and forestland play a vital role in crop yield. Few existing agricultural tools can perform deep tillage and deep fertilization at the same time, and the cutting effect of existing vertical deep tillage tools is average for deep tillage of soil. The mechanical design and power of the tools cannot meet the requirements of deep tillage. Summary of the invention

[0003] The deep tillage and fertilization machine provided by the present invention can introduce fertilizer into the soil layer from top to bottom as the deep tillage component goes deep into the soil during deep tillage, thus forming deep fertilization along the soil deep tillage path, combining the deep tillage and deep fertilization structures together to achieve synchronous action of deep tillage and deep fertilization, thereby improving the reliability, efficiency and automation level of deep tillage and deep fertilization, improving the mixing effect of soil and fertilizer, extending the duration of soil fertility, and providing a high-quality soil environment for crops.

[0004] In order to achieve the above object, the technical solution adopted by the present invention is:

[0005] A deep tillage and fertilization machine comprises a deep tillage component for deep tillage of soil, a fertilizer output component for outputting liquid fertilizer, and a gear transmission component respectively connected to the deep tillage component and the fertilizer output component, wherein the gear transmission component is connected to a power device to obtain power, and is characterized in that: the fertilizer output component is connected to the deep tillage component to form a material guide passage, and the material guide passage guides the fertilizer output from the fertilizer output component into the deep tillage soil as the deep tillage component moves.

[0006] Preferably, the gear transmission assembly includes a transmission shaft connected to the output shaft of the power equipment, a bevel gear 1 coaxially fixed on the transmission shaft and a bevel gear 2 meshing with the bevel gear 1, the bevel gear 2 is connected to the deep loosening assembly, and the deep loosening assembly is driven to rotate with the rotation of the transmission shaft, and the fertilizer output assembly is connected to the transmission shaft, and the fertilizer flow rate in the material guide passage is increased with the rotation of the transmission shaft.

[0007] Preferably, the deep loosening component includes a box body, spiral cutters mounted on the box body and arranged side by side, the number of the spiral cutters is odd, the spiral cutter located in the middle is coaxially connected to bevel gear 2, adjacent spiral cutters are connected by gear meshing, and rotate synchronously with the rotation of bevel gear 2, and the gear transmission assembly is installed in the box body.

[0008] Preferably, the spiral cutter includes a main shaft, a cutter gear coaxially fixed on the main shaft and a spiral cutter coaxially fixed to the bottom of the main shaft. The main shaft of the spiral cutter located in the middle is coaxially connected to bevel gear 2, the cutter gears of adjacent spiral cutters are meshed and connected, and the fertilizer output assembly, the main shaft and the threaded cutter are connected to form a material guide passage.

[0009] Preferably, the main shaft is hollow tubular, the cutter gear is fixed to the middle part of the main shaft, the bearing is pressed on the main shaft, the bearing is equipped with a bearing seat, two bevel gears are coaxially pressed on the upper end of the main shaft, the upper end of the main shaft is connected to the fertilizer output assembly, the lower end of the main shaft is fixed with a fixed plate coaxially fixed to the upper end of the spiral cutter, a material guide cavity is provided in the spiral cutter that is coaxially connected to the inner cavity of the main shaft, the material guide cavity extends to the bottom of the spiral cutter and forms a discharge hole at the bottom of the spiral cutter, the cutter gear is installed in a box, and the spiral cutter is arranged below the box.

[0010] Preferably, the tool gear is divided into a small gear and a large gear whose number of teeth and radius are larger than the small gear. The small gear and the large gear are alternately meshed. The tool gear of the spiral tool located in the middle is the small gear. The spiral directions of adjacent spiral tools are opposite, the spiral pitches are different, and the spiral tools with two spiral directions and spiral pitches are alternately arranged.

[0011] Preferably, the spiral cutter includes a cutter shaft and spiral blades evenly distributed on the cutter shaft, a material guide cavity is opened along the central axis of the cutter shaft, there are multiple discharge holes, and the multiple discharge holes are evenly arranged circumferentially at the bottom end of the cutter shaft, the axial direction of the discharge hole forms an angle of 90 degrees to 120 degrees with the axial direction of the material guide cavity, the bottom of the spiral blade is in an upward crescent shape, and the bottom of the cutter shaft has a spiral tip.

[0012] Preferably, the fertilizer output assembly includes a fertilizer box installed on the box body and in a leaking shape, and an eccentric shaft booster pump that guides the fertilizer pressurization into the inner cavity of the main shaft. The eccentric shaft booster pump is arranged below the fertilizer box and fixed on the box body. The bottom of the fertilizer box is connected to the feed port of the eccentric shaft booster pump through an external pipe, and the inner cavity of the main shaft is connected to the discharge port of the eccentric shaft booster pump through the external pipe. The eccentric shaft booster pump includes a sealed shell and an eccentric shaft assembly installed in the shell. The shell is provided with a feed port connected to the bottom of the fertilizer box through an external pipe and a discharge port connected to the inner cavity of the main shaft through an external pipe. The feed port and the discharge port are symmetrically arranged. Above the eccentric shaft assembly, the eccentric shaft assembly includes an eccentric shaft coaxially connected to the transmission shaft, an eccentric shaft sleeve sleeved on the eccentric shaft, and a slider matched with the eccentric shaft sleeve. The eccentric shaft sleeve consists of a ring sleeve sleeved on the eccentric shaft and a radial slide integrally formed on the outer wall of the ring sleeve. The arc surface of the free end of the radial slide fits and extends into the slider. The shape of the inner cavity of the shell corresponds to the shape of the eccentric shaft sleeve. The slider is matched with the inner cavity of the shell along the radial guide. The eccentric sleeve rotates eccentrically with the eccentric shaft and is tangent to the inner wall of the shell to press the liquid fertilizer in the inner cavity of the shell out from the discharge port. The slider moves in the shell guided by the movement of the radial slide.

[0013] Preferably, a feed cylinder connected to the outer tube is fixed on the feed port, a discharge cylinder connected to the outer tube is fixed on the discharge port, a feed port sealing plate is rotatably installed on the feed cylinder to prevent liquid fertilizer from being discharged outward from the feed port, and a discharge port sealing plate is rotatably installed on the discharge cylinder to prevent liquid fertilizer from being introduced into the discharge port.

[0014] Preferably, the feed port sealing plate and the discharge port sealing plate have the same structure, both comprising a fixed rod fixed to the feed barrel or the discharge barrel and a circular sealing plate rotatably sleeved on the fixed rod and located in the feed barrel or the discharge barrel, a feed barrel annular positioning step corresponding to the circular sealing plate is provided on the feed barrel, and the feed barrel annular positioning step is arranged above the circular sealing plate, the circular sealing plate rotates in the feed barrel and presses against the feed barrel annular positioning step to seal the feed barrel, a discharge barrel annular positioning step corresponding to the circular sealing plate is provided on the discharge barrel, and the discharge barrel annular positioning step is arranged below the circular sealing plate, the circular sealing plate rotates in the discharge barrel and presses against the discharge barrel annular positioning step to seal the discharge barrel.

[0015] The beneficial effects of the invention are:

[0016] The deep loosening and fertilizing machine of the present invention comprises a deep loosening component and a fertilizer output component. The deep loosening component loosens the soil deeply, and the fertilizer output component outputs liquid fertilizer. The fertilizer output component is connected with the deep loosening component to form a material guide passage. The material guide passage guides the fertilizer into the deep loosened soil as the deep loosening component operates. The deep loosening component is used for both deep loosening of the soil and for guiding deep fertilization. When the soil is deep loosened, the fertilizer is introduced into the soil layer from top to bottom as the deep loosening component goes deeper, forming deep fertilization along the deep loosening path of the soil. The deep loosening and deep fertilization structures are combined together without the need to set up deep fertilization equipment separately, so that the synchronous action of deep loosening and deep fertilization is realized, the machine structure is simplified, and the reliability, efficiency and automation level of deep loosening and deep fertilization are improved. In the process of the deep loosening component loosening the soil from top to bottom, the liquid fertilizer is also introduced into the loosened soil from top to bottom, so as to improve the mixing effect of the soil and the fertilizer, prolong the duration of the soil fertility, and provide a high-quality soil environment for crops.

[0017] The gear transmission assembly transmits power to the deep loosening assembly through the bevel gear. Multiple spiral cutters in the deep loosening assembly are driven by cutter gears that mesh in sequence. The cutter gear of the spiral cutter in the middle is coaxially connected to the second bevel gear through the main shaft, so that adjacent spiral cutters rotate in opposite directions. The cutter gear is divided into a small gear and a large gear. The adjacent small gears and large gears mesh alternately. The cutter gear of the spiral cutter in the middle is a small gear, so that adjacent spiral cutters rotate differentially. The spirals of adjacent spiral cutters are in opposite directions, the spiral pitches are unequal, and the spiral cutters with two spiral directions and spiral pitches are alternately arranged, so that adjacent spiral cutters rotate with different pitches, forming opposite, differential and differential pitch rotation of adjacent spiral cutters, so that the spiral cutters have better effects of crushing soil, roots and vines when deep loosening the soil, can effectively turn over sand and gravel hard soil, cut off dense roots and vines, and ensure the deep loosening effect.

[0018] The main shaft in the deep loosening component is hollow tubular and coaxially connected to the guide cavity in the threaded cutter. The fertilizer output component inputs the fertilizer into the inner cavity of the main shaft and guides it to the discharge hole through the guide cavity, and then flows out into the soil from the discharge hole. The discharge holes are evenly distributed along the circumference at the bottom end of the cutter shaft to form jet-type discharge in multiple directions, thereby expanding the soil contact area of ​​deep fertilization, ensuring the full mixing of fertilizer and soil, and improving the reliability of deep fertilization.

[0019] The eccentric shaft booster pump in the fertilizer output assembly guides the fertilizer pressure into the inner cavity of the main shaft, increases the pressure and flow rate of the liquid fertilizer in the material guide passage, causes the liquid fertilizer to be ejected in a jet shape, extends the flow path of the liquid fertilizer in the soil, further improves the mixing effect of the soil and the fertilizer, and improves the efficiency of deep fertilization. A feed port sealing plate is installed on the feed barrel to prevent the liquid fertilizer from being discharged outward from the feed port, and a discharge port sealing plate is installed on the discharge barrel to prevent the liquid fertilizer from being introduced inward from the discharge port, so as to avoid the reverse flow of fertilizer during the movement of the eccentric shaft booster pump, ensure the consistency of the fertilizer flow direction, improve the fertilizer flow efficiency, and improve the reliability of deep fertilization. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the deep tillage and fertilization machine of the present invention.

[0021] Figure 2 A perspective view of a deep tillage and fertilization machine.

[0022] Figure 3 This is a schematic diagram of the assembly of bevel gear 2 and spiral cutter.

[0023] Figure 4 Schematic diagram of the spiral cutter.

[0024] Figure 5 Schematic diagram of the tool gears in multiple spiral tools meshing in sequence.

[0025] Figure 6 A perspective view of the material guide cavity and discharge hole opened in the cutter shaft.

[0026] Figure 7 Schematic diagram of spiral knives arranged side by side.

[0027] Figure 8 A perspective view of an eccentric shaft booster pump.

[0028] Fig. 9 This is a schematic diagram of the exploded view of the eccentric shaft booster pump.

[0029] Fig.10 This is a schematic diagram of the discharge port sealing plate being installed on the discharge barrel.

[0030] Fig.11 This is a schematic diagram of the feed port sealing plate installed on the feed barrel.

[0031] Fig.12 It is a schematic diagram of a circular sealing plate being sleeved on a fixed rod. DETAILED DESCRIPTION

[0032] Combine the following Figures 1 to 12 The embodiments of the present invention are described in detail.

[0033] A deep tillage and fertilization machine comprises a deep tillage component 1 for deep tillage of soil, a fertilizer output component 2 for outputting liquid fertilizer, and a gear transmission component 3 which is respectively connected to the deep tillage component 1 and the fertilizer output component 2, wherein the gear transmission component 3 is connected to a power device to obtain power, and is characterized in that: the fertilizer output component 2 is connected to the deep tillage component 1 to form a material guide passage 4, and the material guide passage 4 guides the fertilizer output from the fertilizer output component 2 into the deep tillage soil as the deep tillage component moves.

[0034] The deep loosening and fertilization machine described above includes a deep loosening component 1 and a fertilizer output component 2. The deep loosening component 1 loosens the soil deeply, and the fertilizer output component 2 outputs liquid fertilizer. The fertilizer output component 2 is connected to the deep loosening component 1 to form a material guide passage 4. The material guide passage 4 guides the fertilizer into the deep loosened soil as the deep loosening component 1 runs. The deep loosening component 1 is used for both deep loosening of the soil and for the diversion of deep fertilization. When the soil is deep loosened, the fertilizer is introduced into the soil layer from top to bottom as the deep loosening component goes deeper, forming deep fertilization along the soil deep loosening path, combining the deep loosening and deep fertilization structures together, without the need to set up deep fertilization equipment separately, achieving synchronous action of deep loosening and deep fertilization, simplifying the machine structure, and improving the reliability, efficiency and automation level of deep loosening and deep fertilization; in the process of the deep loosening component 1 loosening the soil from top to bottom, the liquid fertilizer is also introduced into the loosened soil from top to bottom, thereby improving the mixing effect of soil and fertilizer, prolonging the duration of soil fertility, and providing a high-quality soil environment for crops.

[0035] The gear transmission assembly 3 includes a transmission shaft 31 connected to the output shaft of the power equipment, a bevel gear 1 32 coaxially fixed on the transmission shaft 31, and a bevel gear 2 33 meshing with the bevel gear 1. The bevel gear 2 33 is connected to the deep loosening assembly 1, and drives the deep loosening assembly 1 to rotate with the rotation of the transmission shaft 31. The fertilizer output assembly 2 is connected to the transmission shaft 31, and increases the fertilizer flow rate in the material guide passage with the rotation of the transmission shaft. The bevel gear 2 33 transmits power to the deep loosening assembly 1, drives the deep loosening assembly 1 to rotate to deep loosen the soil, and the transmission shaft 31 transmits power to the fertilizer output assembly 2 to increase the flow rate of the fertilizer in the material guide passage, ensuring reliable and effective deep fertilization while deep loosening the soil.

[0036] The subsoiling assembly 1 includes a housing 5, spiral cutters 6 mounted on the housing and arranged side by side, the number of spiral cutters 6 is odd, the spiral cutter 6 in the middle is coaxially connected to the bevel gear 2 33, the adjacent spiral cutters 6 are connected by gear meshing, and rotate synchronously with the rotation of the bevel gear 2 33, and the gear transmission assembly 3 is mounted in the housing 5. By fixing the housing 3 on a mobile device, the movement of the entire machine can be realized, multiple spiral cutters are arranged side by side and connected by gear meshing, the spiral cutter in the middle is synchronously connected to the bevel gear 2 33, so that the adjacent spiral cutters rotate in the opposite direction, and the adjacent spiral cutters turn the soil in the opposite direction during subsoiling, which improves the loosening efficiency and the soil loosening rate.

[0037] The spiral cutter 6 comprises a main shaft 61, a cutter gear 62 coaxially fixed on the main shaft 61, and a spiral cutter 63 coaxially fixed at the bottom of the main shaft. The main shaft 61 of the spiral cutter 6 in the middle is coaxially connected with the bevel gear 2 33, and the cutter gear 62 of the adjacent spiral cutter 6 is meshed and connected. The fertilizer output assembly 2, the main shaft 51 and the screw cutter 63 are connected to form a material guide passage 4. The main shaft 31 of the spiral cutter in the middle rotates synchronously with the bevel gear 2 33, and the cutter gear 62 drives multiple spiral cutters 6 to rotate synchronously. The adjacent spiral cutters 6 rotate in the opposite direction to reversely turn the soil. The hydraulic fertilizer output by the fertilizer output assembly 2 flows into the soil through the main shaft 61 and the spiral cutter 63, so as to realize loosening the soil and fertilizing at the same time. The main shaft 61 is the transmission component of the spiral cutter 63 and the guide component of the fertilizer. The spiral cutter 63 is both a deep loosening component and a fertilizing component. There is no need to set a fertilizing component in the machine. The loosening of the soil and fertilization are carried out simultaneously, and the depth is consistent, so as to realize the dual functions of deep loosening and deep fertilization.

[0038] Among them, the main shaft 61 is a hollow tube, the tool gear 62 is fixed to the middle part of the main shaft 61, the bearing 64 is pressed on the main shaft 61, the bearing 64 is equipped with a bearing seat 65, the bevel gear 233 is coaxially pressed on the upper end of the main shaft 61, the upper end of the main shaft 61 is connected to the fertilizer output component 2, the lower end of the main shaft 61 is fixed with a fixed plate 66 coaxially fixed to the upper end of the spiral cutter 63, the spiral cutter 63 is provided with a material guide cavity 67 coaxially docked with the inner cavity of the main shaft 61, the material guide cavity 67 extends to the bottom of the spiral cutter 6 and forms a discharge hole 68 at the bottom of the spiral cutter, the tool gear 62 is installed in the box body 5, and the spiral cutter 63 is installed below the box body 5. Bevel gear 2 33 is pressed against the upper end of the main shaft 61, driving the main shaft 61 to rotate. The main shaft 61 drives the tool gear 62 to rotate, so that multiple spiral tools rotate synchronously. Bearings 64 and 65 support and position the main shaft to ensure the stability of the main shaft 61 and the smooth rotation of the main shaft 61. The inner cavity of the main shaft 61 guides the fertilizer and docks with the guide cavity 67. The fertilizer output by the fertilizer output component 2 flows out from the discharge hole 68 into the soil through the main shaft inner cavity and the guide cavity 67 to achieve deep fertilization.

[0039] Among them, the tool gear 62 is divided into a small gear 621 and a large gear 622 whose number of teeth and radius are both larger than the small gear 621. The small gear 621 and the large gear 622 are alternately meshed. The tool gear of the spiral tool 6 located in the middle is the small gear 621. The spiral directions of adjacent spiral cutters 63 are opposite, the spiral pitches are unequal, and the spiral cutters 63 with two spiral directions and spiral pitches are alternately arranged. The tool gear 62 of the spiral tool 6 located in the middle is coaxially connected with the bevel gear 233 through the main shaft 61, so that the adjacent spiral tools 6 rotate in the opposite direction. The tool gear 62 is divided into a small gear 621 and a large gear 622. The adjacent small gears 621 and large gears 622 are alternately meshed. The tool gear 62 of the spiral tool 6 located in the middle is a small gear, so that the adjacent spiral tools 6 rotate differentially. The spirals of adjacent spiral tools 63 are in opposite directions, the spiral pitches are unequal, and the spiral tools with two spiral directions and spiral pitches are alternately arranged, so that the adjacent spiral tools 6 rotate with different pitches, forming the opposite, differential and differential pitch rotation of adjacent spiral tools 6, so that the spiral tool can better crush the soil, roots and vines when deep loosening the soil, and can effectively turn over the sand and gravel hard soil, cut off dense roots and vines, and ensure the deep loosening effect.

[0040] The spiral cutter 63 includes a cutter shaft 631 and a spiral blade 632 evenly distributed on the cutter shaft. The guide cavity 67 is opened along the central axis of the cutter shaft. There are multiple discharge holes 68, which are evenly arranged along the circumference at the bottom end of the cutter shaft 631. The axial direction of the discharge hole 68 and the axial direction of the guide cavity 67 form an angle of 90 to 120 degrees. The bottom of the spiral blade 632 is in a crescent shape that is upwardly raised. The bottom of the cutter shaft 631 has a spiral tip 633. The spiral tip 633 lowers the center of gravity of the spiral cutter 6, plays a vertical guiding role in the cutting process of the cutter perpendicular to the ground, and the crescent-shaped bottom of the spiral blade 632 can enhance the cutting depth of the blade. The discharge holes 68 are evenly distributed along the circumference at the bottom end of the cutter shaft 631, forming jet-type discharge in multiple directions, expanding the soil contact area of ​​deep fertilization, ensuring the full mixing of fertilizer and soil, and improving the reliability of deep fertilization.

[0041] Among them, the fertilizer output component 2 includes a fertilizer box 7 installed on the box body and in a leaking shape, and an eccentric shaft booster pump 8 that pressurizes the fertilizer and introduces it into the inner cavity of the main shaft 6. The eccentric shaft booster pump 8 is arranged below the fertilizer box 7 and fixed on the box body 5. The bottom of the fertilizer box 7 is connected to the feed port of the eccentric shaft booster pump 8 through an external tube, and the inner cavity of the main shaft 61 is also connected to the discharge port of the eccentric shaft booster pump 8 through an external tube; the eccentric shaft booster pump 8 includes a sealed shell 9 and an eccentric shaft assembly 10 installed in the shell. The shell 9 is provided with a feed port 91 connected to the bottom of the fertilizer box 7 through an external tube and a discharge port 92 connected to the inner cavity of the main shaft 6 through an external tube. The feed port 91 and the discharge port 92 are symmetrically arranged above the eccentric shaft assembly 10. The shaft assembly 10 includes an eccentric shaft 11 coaxially connected to the transmission shaft 31, an eccentric shaft sleeve 12 sleeved on the eccentric shaft 11, and a slider 13 matched with the eccentric shaft sleeve 12. The eccentric shaft sleeve 12 is composed of a ring sleeve 121 sleeved on the eccentric shaft 11 and a radial slide 122 integrally formed on the outer wall of the ring sleeve 121. The free end arc surface of the radial slide 122 is matched to extend into the slider 13. The shape of the inner cavity of the shell 9 corresponds to the shape of the eccentric shaft sleeve 12. The slider 13 is matched with the inner cavity of the shell 9 along the radial guide. The eccentric sleeve 12 rotates eccentrically with the eccentric shaft 11 and is tangent to the inner wall of the shell 9, so that the liquid fertilizer in the inner cavity of the shell 9 is pressed out from the discharge port 92. The slider 13 moves in the shell 9 in a guided manner with the movement of the radial slide 12. The eccentric shaft 11 in the eccentric shaft booster pump 8 is synchronously connected with the transmission shaft 31, and rotates eccentrically in the housing 9 with the rotation of the transmission shaft 31, thereby driving the eccentric shaft sleeve 12 to rotate eccentrically and tangent to the inner wall of the housing 10. The feed port 91 and the discharge port 92 are opened above the eccentric shaft assembly 11. Under the action of gravity, the fertilizer flows from the fertilizer box through the outer tube into the feed port 91. The eccentric shaft sleeve 12 moves toward the discharge port 92 during the eccentric rotation process, and the fertilizer is pressed out of the discharge port 92. The fertilizer is pressed out of the discharge port 92 at a high speed, the pressure increases, and the flow rate accelerates, so that the fertilizer flowing out of the discharge hole 68 can be in a spray state, improve the flow path of the fertilizer in the soil, and improve the effect of deep fertilization. In order to avoid the synchronous rotation of the outer tube and the main shaft 6, a rotary joint is installed on the outer tube, and the rotary joint is connected to the upper end of the main shaft 6 to realize the connection between the outer tube and the inner cavity of the main shaft 6, so as to ensure that the outer tube will not rotate when the main shaft 6 rotates, and the fertilizer can be smoothly guided.

[0042] Among them, the feed port 91 is fixed with a feed cylinder 911 connected to the outer tube, the discharge port 92 is fixed with a discharge cylinder 921 connected to the outer tube, the feed cylinder 911 is rotatably installed with a feed port sealing plate 14 to prevent liquid fertilizer from being discharged outward from the feed port, and the discharge cylinder 921 is rotatably installed with a discharge port sealing plate 15 to prevent liquid fertilizer from being introduced inward from the discharge port. The feed port sealing plate 14 prevents the feed port from discharging fertilizer outward, and the discharge port sealing plate 15 prevents the discharge port from introducing fertilizer inward, so as to avoid reverse flow of fertilizer during the movement of the eccentric shaft pressure boosting pump 8, ensure the consistency of fertilizer flow direction, improve fertilizer flow efficiency, and improve the reliability of deep fertilization.

[0043] Among them, the structures of the feed port sealing plate 14 and the discharge port sealing plate 15 are the same, both of which include a fixed rod 16 fixed to the feed barrel 911 or the discharge barrel 921 and a circular sealing plate 17 rotatably sleeved on the fixed rod 16 and located in the feed barrel 911 or the discharge barrel 921. A feed barrel annular positioning step 912 corresponding to the circular sealing plate 17 is provided on the feed barrel 911, and the feed barrel annular positioning step 912 is arranged above the circular sealing plate 17. The circular sealing plate 17 rotates in the feed barrel 911 and presses against the feed barrel annular positioning step 912 to seal the feed barrel 911. A discharge barrel annular positioning step 922 corresponding to the circular sealing plate 17 is provided on the discharge barrel 921, and the discharge barrel annular positioning step 922 is arranged below the circular sealing plate 17. The circular sealing plate 17 rotates in the discharge barrel 911 and presses against the discharge barrel annular positioning step 912 to seal the discharge barrel 921. The eccentric shaft sleeve 12 rotates with the eccentric shaft 11 and makes eccentric movement in the shell 9, and is tangent to the inner wall of the shell 9. When the eccentric shaft sleeve moves toward the side of the feed port 91, the fertilizer will be pressed out of the feed port 91 due to the increased pressure. In order to prevent the fertilizer from being pressed out from the feed port 91, a rotatable circular sealing plate 17 is installed on the feed barrel 91. The circular sealing plate 17 will rotate and press against the annular positioning step 912 of the feed barrel under the pressure of the fertilizer moving outward, so as to block the feed barrel 911 and prevent the fertilizer from being discharged from the feed port. When the pressure of the fertilizer moving downward from the outer tube increases, the circular sealing plate 17 in the feed barrel will be pushed to rotate, and the feed port 91 will be reopened. Similarly, when the eccentric shaft sleeve 12 moves toward the side of the discharge port 92, the fertilizer will be pressed out from the discharge port 92 due to the increased pressure, thereby increasing the fertilizer pressure. Flow rate and pressure, but when the distance between the eccentric shaft sleeve 12 and the discharge port 92 increases, the pressure of the fertilizer near the discharge port 92 decreases, and the fertilizer pressed into the discharge barrel 921 will flow back inward, and the circular sealing plate 17 on the discharge barrel 921 will rotate and press against the annular positioning step 922 of the discharge barrel due to the push of the inward flow of the fertilizer, thereby blocking the discharge barrel 921 and preventing the fertilizer from flowing back from the discharge port. When the eccentric shaft sleeve 12 approaches the discharge port again, the fertilizer pressure near the discharge port increases and pushes the circular sealing plate 17 to rotate, reopening the discharge port 92, realizing the consistent outflow direction of the fertilizer introduced from the feed port and pressed out from the discharge port, preventing the fertilizer from the feed port 91 and the discharge port 92 from flowing in reverse, forming the automatic opening and closing of the discharge port 91 and the discharge port 92, and improving the flow efficiency of the fertilizer.

[0044] The above is a complete description of the technical solutions of the embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the described embodiments are only part of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

Claims

1. A deep tillage and fertilization machine, comprising a deep tillage component for deep tillage of soil, a fertilizer output component for outputting liquid fertilizer, and a gear transmission component respectively connected to the deep tillage component and the fertilizer output component, wherein the gear transmission component is connected to a power device to obtain power, and is characterized in that: The fertilizer output assembly is connected to the deep loosening assembly to form a material guide passage, and the material guide passage guides the fertilizer output from the fertilizer output assembly into the deep loosening soil as the deep loosening assembly moves; The gear transmission assembly includes a transmission shaft connected to the output shaft of the power equipment, a bevel gear 1 coaxially fixed on the transmission shaft, and a bevel gear 2 meshing with the bevel gear 1, the bevel gear 2 is connected to the deep loosening assembly, and drives the deep loosening assembly to rotate with the rotation of the transmission shaft, and the fertilizer output assembly is connected to the transmission shaft, and increases the fertilizer flow rate in the material guide passage with the rotation of the transmission shaft; The subsoil assembly comprises a box body, spiral cutters mounted on the box body and arranged side by side, the number of spiral cutters is odd, the spiral cutter located in the middle is coaxially connected to the second bevel gear, the adjacent spiral cutters are connected by gear meshing, and rotate synchronously with the rotation of the second bevel gear, and the gear transmission assembly is installed in the box body; The spiral cutter comprises a main shaft, a cutter gear coaxially fixed on the main shaft and a spiral cutter coaxially fixed at the bottom of the main shaft. The main shaft of the spiral cutter located in the middle is coaxially connected with the second bevel gear. The cutter gears of adjacent spiral cutters are meshed and connected. The fertilizer output assembly, the main shaft and the screw cutter are connected to form a material guide passage. The main shaft is a hollow tube, the cutter gear is fixed to the middle of the main shaft, the bearing is pressed on the main shaft, the bearing is equipped with a bearing seat, the bevel gear is coaxially pressed on the upper end of the main shaft, the upper end of the main shaft is connected to the fertilizer output assembly, the lower end of the main shaft is fixed with a fixed plate coaxially fixed to the upper end of the spiral cutter, the spiral cutter is provided with a material guide cavity coaxially docked with the inner cavity of the main shaft, the material guide cavity extends to the bottom of the spiral cutter and forms a discharge hole at the bottom of the spiral cutter, the cutter gear is installed in the box, and the spiral cutter is arranged below the box; The fertilizer output assembly includes a fertilizer box installed on the box body and in a leaking shape, and an eccentric shaft booster pump that pressurizes the fertilizer and guides it into the inner cavity of the main shaft. The eccentric shaft booster pump is arranged below the fertilizer box and fixed on the box body. The bottom of the fertilizer box is connected to the feed port of the eccentric shaft booster pump through an external pipe, and the inner cavity of the main shaft is connected to the discharge port of the eccentric shaft booster pump through the external pipe. The eccentric shaft booster pump includes a sealed shell and an eccentric shaft assembly installed in the shell. The shell is provided with a feed port connected to the bottom of the fertilizer box through an external pipe and a discharge port connected to the inner cavity of the main shaft through an external pipe. The feed port and the discharge port are symmetrically arranged on the eccentric shaft. Above the shaft assembly, the eccentric shaft assembly includes an eccentric shaft coaxially connected to the transmission shaft, an eccentric shaft sleeve sleeved on the eccentric shaft, and a slider matched with the eccentric shaft sleeve. The eccentric shaft sleeve consists of a ring sleeve sleeved on the eccentric shaft and a radial slider integrally formed on the outer wall of the ring sleeve. The arc surface of the free end of the radial slider fits and extends into the slider. The shape of the inner cavity of the shell corresponds to the shape of the eccentric shaft sleeve. The slider is matched with the inner cavity of the shell along the radial guide. The eccentric sleeve rotates eccentrically with the eccentric shaft and is tangent to the inner wall of the shell to press the liquid fertilizer in the inner cavity of the shell out from the discharge port. The slider moves in the shell guided by the movement of the radial slider.

2. The deep tillage and fertilization machine according to claim 1, characterized in that: The tool gear is divided into a small gear and a large gear with a larger number of teeth and a larger radius than the small gear. The small gear and the large gear are meshed alternately. The tool gear of the spiral tool in the middle is the small gear. The spirals of adjacent spiral tools are in opposite directions and have different spiral pitches, and the spiral tools with two spiral directions and spiral pitches are arranged alternately.

3. The deep tillage and fertilization machine according to claim 2, characterized in that: The spiral cutter includes a cutter shaft and spiral blades evenly distributed on the cutter shaft. A material guide cavity is opened along the central axis of the cutter shaft. There are multiple discharge holes, which are evenly arranged circumferentially at the bottom end of the cutter shaft. The axial direction of the discharge hole forms an angle of 90 to 120 degrees with the axial direction of the material guide cavity. The bottom of the spiral blade is in an upward crescent shape, and the bottom of the cutter shaft has a spiral tip.

4. The deep tillage and fertilization machine according to claim 1, characterized in that: A feed cylinder docked with the outer tube is fixed on the feed port, a discharge cylinder docked with the outer tube is fixed on the discharge port, a feed port sealing plate is rotatably installed on the feed cylinder to prevent liquid fertilizer from being discharged outward from the feed port, and a discharge port sealing plate is rotatably installed on the discharge cylinder to prevent liquid fertilizer from being introduced inward from the discharge port.

5. The deep tillage and fertilization machine according to claim 4, characterized in that: The feed port sealing plate and the discharge port sealing plate have the same structure, both of which include a fixed rod fixed to the feed barrel or the discharge barrel and a circular sealing plate rotatably sleeved on the fixed rod and located in the feed barrel or the discharge barrel. The feed barrel is provided with a feed barrel annular positioning step corresponding to the circular sealing plate, and the feed barrel annular positioning step is arranged above the circular sealing plate. The circular sealing plate rotates in the feed barrel and presses against the feed barrel annular positioning step to seal the feed barrel. The discharge barrel is provided with a discharge barrel annular positioning step corresponding to the circular sealing plate, and the discharge barrel annular positioning step is arranged below the circular sealing plate. The circular sealing plate rotates in the discharge barrel and presses against the discharge barrel annular positioning step to seal the discharge barrel.

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