Multifunctional seeding, fertilizing and earthing rotary cultivator

Abstract

The utility model belongs to the technical field of agricultural machinery, and discloses a multifunctional seeding, fertilizing and earthing rotary cultivator. The multifunctional sowing, fertilizing and soil covering rotary cultivator comprises two racks which are arranged in parallel, a traction mechanism is installed on the front portions of the racks, the traction mechanism is connected with a rotary tillage mechanism through a bevel gear, the rotary tillage mechanism is installed on the racks, and a fertilizing mechanism and a sowing mechanism are sequentially installed on the tops of the racks from front to back. The fertilizing mechanism and the seeding mechanism are connected through a conveying belt, a driving device is installed on the side portion of the seeding mechanism, a height adjusting frame is installed on the outer side of the rear portion of the rack, a ditching mechanism is installed at the bottom of the height adjusting frame, the seeding mechanism is connected with the ditching mechanism, and a soil covering mechanism is installed on the rear portion of the rack through an adjusting support. According to the utility model, the parallel layout can be adopted in structure, the layout is reasonable, the rotary cultivator integrating the functions of sowing, fertilizing, ditching, earthing and the like is designed, and the problem of single function form of the existing rotary cultivator is solved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery technology, specifically to a multifunctional rotary tiller for sowing, fertilizing, and covering soil. Background Technology

[0002] Rotary tillers work by using rotating blades to break up and till the soil, removing weeds and stubble from the hilled surface, thus improving soil aeration and looseness. Simultaneously, rotary tillers can evenly mix fertilizer spread on the hilled surface with the soil, increasing its nutrient content and thereby improving productivity. Clearly, rotary tillers are essential machinery in agricultural production, and choosing the right agricultural implement is an indispensable step in improving production efficiency, reducing production costs, and decreasing labor intensity.

[0003] With the continuous development of agricultural mechanization in my country, rotary tillers, as one of the main machines in modern agricultural cultivation, have been widely used in agricultural production due to their excellent soil-breaking function, achieving good production results. However, current rotary tillers generally have a single function, merely turning and leveling the land. After being turned by a rotary tiller, the land usually still needs to undergo ditching and sowing operations; that is, the rotary tiller only creates furrows in the land to prepare for sowing. It is evident that existing rotary tillers are functionally limited and cannot integrate ditching, sowing, fertilizing, and covering with soil. Additional work is required after the land is turned, resulting in low work efficiency. Utility Model Content

[0004] The purpose of this utility model is to provide a multi-functional rotary tiller for sowing, fertilizing, and covering soil, so as to overcome the problems existing in the prior art. This utility model adopts a parallel layout in terms of structure, which is reasonable. It is designed as a rotary tiller that integrates functions such as sowing, fertilizing, ditching, and covering soil, thus solving the problem of the single function of existing rotary tillers.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A multi-functional rotary tiller for sowing, fertilizing, and covering soil includes two parallel frames. A traction mechanism is installed at the front of the frames to connect to an external tractor for power. The traction mechanism is connected to a rotary tiller via a bevel gear. The rotary tiller is mounted on the frames for crushing and mixing soil. A fertilizing mechanism and a sowing mechanism are installed sequentially from front to back on the top of the frames, connected by a transmission belt. A drive unit is installed on the side of the sowing mechanism. A height adjustment frame is installed on the outer rear of the frames. A furrowing mechanism is installed at the bottom of the height adjustment frame for creating furrows. The sowing mechanism is connected to the furrowing mechanism for delivering seeds into the furrows. A soil covering mechanism is installed at the rear of the frames via an adjustable bracket to fill the furrows containing seeds.

[0007] Furthermore, the traction mechanism includes connecting plates respectively installed on the outer sides of the front of the two frames. A traction rod is installed on the outer side of the connecting plate via a support rod. One end of the traction rod is connected to an external tractor, and the other end is connected to a bevel gear. A first universal joint is installed on the front of the bevel gear. A second universal joint is installed on the first universal joint via an external rotating shaft. The second universal joint is used to connect to the rotating shaft of the external tractor.

[0008] Furthermore, the rotary tillage mechanism includes an internal upper shaft that passes through both ends of a bevel gear. The bevel gear drives the internal upper shaft for transmission. The internal upper shaft is mounted on the frame via a connecting device. Transmission connecting devices are installed at both ends of the internal upper shaft. Blade side plates are fixed to the inner sides of both transmission connecting devices. The rotary tillage mechanism body is fixed between the two blade side plates. The two ends of the internal upper shaft are connected to an internal lower shaft via transmission connecting devices. Several rotary tillage blades are mounted on the internal lower shaft via positioning rings. The positioning rings are used to fix the rotary tillage blades. An adjusting groove is installed on the outer rear part of the blade side plate. The adjusting groove is used to adjust the position of the blade side plate. An arc support plate is installed at the bottom of the adjusting groove.

[0009] Furthermore, the connecting device includes a fixing ring installed on the upper internal rotating shaft, a fixing plate installed at the bottom of the fixing ring, and the fixing plate installed on the frame for connecting the rotary tillage mechanism to the frame; the rotary tillage mechanism body includes a fixed long plate, and a mudguard is installed at the rear of the fixed long plate;

[0010] Furthermore, the transmission connection device includes a housing fixed to the outside of the tool side plate, a chain is installed inside the housing, and the two ends of the upper and lower internal shafts are connected by the chain to drive the upper and lower internal shafts for transmission. Gears are installed at both ends of the upper and lower internal shafts, and the gears are adapted to the chain.

[0011] Furthermore, the fertilization mechanism includes a fertilizer box, with several pendulums installed on the side of the fertilizer box near the sowing mechanism to strike the sowing mechanism and prevent seed blockage; two trapezoidal support plates are installed at the bottom ends of the fertilizer box, and two parallel rectangular support rods are installed between the inner bottom sides of the two trapezoidal support plates. The two rectangular support rods are installed on the top of the frame and located at the front of the sowing mechanism; several fertilizer inlets are opened on the bottom plate of the fertilizer box, and several support sleeves are installed at the bottom of the fertilizer box. The size of the top opening of the support sleeves is adapted to the size of the fertilizer inlets, and the number of support sleeves and fertilizer inlets is equal. A fertilizer roller is installed inside each support sleeve. The circumference is evenly distributed with first grooves, and the amount of fertilizer is adjusted by adjusting the radius of the first grooves. Fertilizer box shafts are installed on two trapezoidal fertilizer support plates. The fertilizer box shafts pass through several support sleeves and fertilizer rollers. A first pulley is also installed at one end of the fertilizer box shaft. The first pulley is connected to the sowing mechanism through a transmission belt. Fertilizer rollers pass through both sides of the support sleeves. Circular baffles are fitted at both ends of the fertilizer rollers. The circular baffles are installed on both sides of the support sleeves to prevent fertilizer from leaking out from both sides of the fertilizer rollers. A fertilizer screening shovel is installed at the top opening of the support sleeves for screening fertilizer. A feeding funnel is installed at the bottom of the support sleeves through wire. A fertilizer pipe is installed at the bottom of the feeding funnel for sprinkling fertilizer on the soil surface.

[0012] Furthermore, the sowing mechanism includes a sowing box, with trapezoidal sowing support plates installed at both ends of the bottom of the sowing box. Two parallel rectangular sowing support rods are installed between the inner bottom sides of the two trapezoidal sowing support plates. The two rectangular sowing support rods are installed on the top of the frame and located at the rear of the fertilization mechanism. Several sowing inlets are opened on the bottom plate of the sowing box. Several partition plates are longitudinally installed inside the sowing box, located at the top of the sowing inlets. Several support sleeves are installed at the bottom of the sowing box. The size of the top opening of the support sleeves matches the size of the sowing inlets. The number of support sleeves, sowing inlets, and partition plates is equal. A first sowing roller is installed inside each support sleeve. A second sowing roller is installed at one end of the first sowing roller. The first and second sowing rollers are evenly divided circumferentially. The device has a second and a third groove, the size of which can be adjusted to change the seeding rate. Two trapezoidal support plates are fitted with a seeding box shaft, which passes through several support sleeves, a first seeding roller, and a second seeding roller. A second pulley and a drive unit are sequentially installed at one end of the seeding box shaft, with the second pulley connected to a fertilizer application mechanism via a transmission belt. The first and second seeding rollers pass through both sides of the support sleeves. A circular baffle is fitted at the other end of the first seeding roller, and a circular baffle is also fitted on the side of the second seeding roller furthest from the first seeding roller. The circular baffles are installed on both sides of the support sleeves. A seeding sieving shovel is installed at the top opening of the support sleeve for seed sieving. A feeding funnel is installed at the bottom of the support sleeve via wire, and a seeding pipe is installed at the bottom of the feeding funnel, connecting to the furrowing mechanism.

[0013] Furthermore, the driving device includes a motor coaxially connected to the second pulley via a coupling through the seed box shaft. The motor and coupling are used to drive the seed box shaft. A motor support frame is installed at the bottom of the motor and is installed outside the seed box shaft.

[0014] Furthermore, the trenching mechanism includes a first strip plate installed at the bottom of the height adjustment frame. Several disc trenchers are installed on the front of the first strip plate via hooks. Each disc trencher includes a support plate. A fixing sleeve is fitted on the top of the support plate. The fixing sleeve is installed on the rear of the first strip plate via hooks. A sleeve is installed on the bottom of the support plate. Circular rings are installed at both ends of the sleeve via washers and fasteners. An arc plate is installed on the top of the circular rings. The support plate passes through the arc plate and connects to the sleeve. A spring is installed on the support plate located between the fixing sleeve and the arc plate. The seeding pipe passes through the arc plate and connects to the space between two circular rings.

[0015] Furthermore, the soil covering mechanism includes a soil covering wheel, with arc-shaped fixing plates installed at both ends of the soil covering wheel. A second strip plate and a third strip plate are installed between the two arc-shaped fixing plates from front to back. The third strip plate is installed at the rear of the frame via an adjusting bracket, which is used to change the pressure of the soil covering wheel on the soil covering.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] This utility model provides a multifunctional rotary tiller for sowing, fertilizing, and covering soil. The rotary tillage mechanism, fertilization mechanism, sowing mechanism, ditching mechanism, and soil covering mechanism are arranged in parallel, resulting in a compact overall structure, small footprint, and easy operation in the field. At the same time, this device can integrate multiple functions such as rotary tillage, fertilization, sowing, ditching, and soil covering into one unit, with diversified functions, which greatly improves the efficiency and convenience of agricultural operations.

[0018] Furthermore, the combined use of bevel gears and universal joints ensures efficient power transmission from the tractor to the seeding, fertilizing, and soil-covering rotary tiller; the combined use of the first and second universal joints significantly increases the flexibility of the device during field operations.

[0019] Furthermore, by setting a positioning ring, the rotary tiller blades can be fixed, preventing them from falling off when the lower inner shaft rotates. By adjusting the slide groove, the depth of the rotary tiller blades can be adjusted according to different working environments, ensuring the stability of the rotary tiller blades during operation. Specifically, by adjusting the position of the blade side plate in the adjustment slide groove, the tillage depth of the rotary tiller can be changed, thereby adapting to different operational needs and ensuring the uniformity and flatness of the land.

[0020] Furthermore, by setting a pendulum, the device can move to strike the outer wall of the seed box, preventing seed blockage. During use, by changing the radius of the first groove of different sizes while keeping the radius of the fertilizer roller constant, the amount of fertilizer can be flexibly controlled to adapt to the fertilization needs of different crops. The circular baffle can prevent fertilizer from leaking out from both sides of the fertilizer roller. The fertilizer screening shovel can remove the fertilizer that is higher than the first groove of the fertilizer roller. The amount of fertilizer can be controlled by adjusting the speed of the first pulley.

[0021] Furthermore, by setting second and third grooves evenly distributed around the circumference of the first and second seeding rollers respectively, the seeding amount can be flexibly controlled to adapt to different seeding needs by changing the radius of the second and third grooves of different sizes while keeping the radius of the first and second seeding rollers unchanged. During use, the area of ​​the second and third grooves inside the support sleeve can be adjusted by moving the first and second seeding rollers horizontally, and the seeding amount can be further flexibly adjusted by adjusting the speed of the motor. By setting a seeding sieve shovel, some seeds higher than the grooves of the first and second seeding rollers can be removed.

[0022] Furthermore, by setting up a disc furrow opener, furrows can be made in the soil, and seeds can be delivered into the furrows through the sowing pipe.

[0023] Furthermore, by setting up a soil covering wheel, the trench containing the seeds can be filled, and by adjusting the support, the pressure of the soil covering wheel on the soil can be changed. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model;

[0025] Figure 2 This is a schematic diagram of the rear structure of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to the present invention.

[0026] Figure 3 This is a top view of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model;

[0027] Figure 4 This is a side sectional view of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to the present invention.

[0028] Figure 5 This is a partial enlarged view of the traction mechanism of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model;

[0029] Figure 6 This is a partially enlarged view of the front structure of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model;

[0030] Figure 7 This is a partial structural diagram of the rotary tillage mechanism of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model.

[0031] Figure 8 This is a left view of the traction mechanism and rotary tillage mechanism of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model.

[0032] Figure 9 This is a partial structural diagram of the fertilization mechanism of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to the present invention.

[0033] Figure 10 This is a partial structural diagram of the sowing mechanism of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to the present invention.

[0034] Figure 11 This is a schematic diagram of the fertilizer roller structure of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model;

[0035] Figure 12 This is a schematic diagram of the structure of the first seeding roller of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to the present invention.

[0036] Figure 13 This is a schematic diagram of the second seeding roller structure of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to the present invention.

[0037] Figure 14 This is a schematic diagram of the circular baffle structure of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model;

[0038] Figure 15 This is a side view of the circular baffle of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model;

[0039] Figure 16 This is a schematic diagram of the disc furrow opener structure of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model.

[0040] Figure 17 This is a schematic diagram of the internal structure of the disc furrow opener of a multifunctional rotary tiller for sowing, fertilizing, and covering soil according to this utility model.

[0041] In the diagram, 1-frame; 2-rotary tiller blades; 3-fertilizer box; 4-seeding box; 5-transmission belt; 6-motor; 7-motor support frame; 8-seeding shovel; 9-covering wheel; 10-first pulley; 11-external shaft; 12-first groove; 13-second pulley; 14-seeding trapezoidal support plate; 15-fertilizer rectangular support rod; 16-fertilizer trapezoidal support plate; 17-fertilizer shovel; 18-seeding rectangular support rod; 20-fertilizer pipe; 21-seeding pipe; 22-outer shell; 23-partition plate; 24-gear; 25-pendulum; 26-bevel gear; 27-arc plate; 28-spring; 29-hook; 30-first strip plate; 31-arc fixing plate; 32-second strip plate; 33-adjusting bracket; 34-internal upper shaft; 35 -Inner lower end rotating shaft; 36-Chain; 37-Fertilizer box rotating shaft; 38-Fertilizer roller; 39-Support sleeve; 40-Iron wire; 41-Feeding funnel; 42-Circular ring baffle; 43-Seeding box rotating shaft; 44-First seeding roller; 45-Second seeding roller; 46-Coupling; 47-Sleeve; 48-Circular ring; 49-Washer; 50-Support plate; 51-Height adjustment frame; 52-Cut side plate; 53-Arc support plate; 54-Adjusting groove; 55-Mudguard; 56-Positioning ring; 57-Fixing sleeve; 58-Third strip plate; 59-Second groove; 60-Third groove; 101-Connecting plate; 102-Support rod; 103-Traction rod; 201-First universal joint; 202-Second universal joint; 203-Fixing ring; 204-Fixing plate. Detailed Implementation

[0042] In the following description, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments can be modified in various ways without departing from the spirit or scope of this invention. Therefore, the drawings and description are considered exemplary in nature and not restrictive.

[0043] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0044] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0045] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0046] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0047] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0048] This utility model provides a multifunctional rotary tiller for sowing, fertilizing, and covering soil, including a frame 1, a traction mechanism, a rotary tillage mechanism, a bevel gear 26, a fertilization mechanism, a sowing mechanism, a transmission belt 5, a drive device, an adjusting bracket 33, a soil covering mechanism, a height adjusting frame 51, and a furrowing mechanism; the traction mechanism includes a connecting plate 101, a support rod 102, a traction rod 103, a first universal joint 201, an external rotating shaft 11, and a second universal joint 202; the rotary tillage mechanism includes an internal upper rotating shaft 34, a connecting device, a transmission connecting device, a blade side plate 52, a rotary tillage mechanism body, an internal lower rotating shaft 35, a positioning ring 56, rotary tillage blades 2, an adjusting slide 54, and an arc support plate 53; the connecting device includes a fixing ring 203 and a fixing plate 204; the rotary tillage mechanism body includes a fixing long plate and a mudguard 55; the transmission connecting device includes a housing 22, a chain 36, and a gear 24; the fertilization mechanism includes a fertilizer box 3, a pendulum 25, and a fertilizer trapezoidal support plate 16. The fertilizer application mechanism includes a rectangular support rod 15, a fertilizer box rotating shaft 37, a first pulley 10, a support sleeve 39, a fertilizer roller 38, a fertilizer sieving shovel 17, a circular baffle 42, an iron wire 40, a feeding funnel 41, and a fertilizer pipe 20; the sowing mechanism includes a sowing box 4, a trapezoidal support plate 14, a rectangular support rod 18, a sowing box rotating shaft 43, a second pulley 13, a partition plate 23, a support sleeve 39, a first sowing roller 44, a second sowing roller 45, and a sowing sieving shovel 8. The device includes a circular baffle plate 42, an iron wire 40, a feeding funnel 41, and a sowing pipe 21; the driving device includes a coupling 46, a motor 6, and a motor support frame 7; the trenching mechanism includes a first strip plate 30, a hook 29, and a disc trencher; the disc trencher includes a support plate 50, a fixing sleeve 57, a sleeve 47, a washer 49, a circular ring plate 48, an arc plate 27, and a spring 28; the soil covering mechanism includes a soil covering wheel 9, an arc-shaped fixing plate 31, a second strip plate 32, and a third strip plate 58.

[0049] See Figure 1 and Figure 2 The two frames 1 are arranged parallel and symmetrically. The traction mechanism is installed at the front of the frame 1 to connect to an external tractor for power. The traction mechanism is connected to the rotary tillage mechanism through a bevel gear 26. The rotary tillage mechanism is installed on the frame 1 for crushing and mixing. The fertilization mechanism and the sowing mechanism are installed sequentially from front to back on the top of the frame 1. The fertilization mechanism and the sowing mechanism are connected by a transmission belt 5. The drive device is installed on the side of the sowing mechanism. The height adjustment frame 51 is installed on the outer rear of the frame 1. The furrowing mechanism is installed at the bottom of the height adjustment frame 51 for opening furrows. The sowing mechanism is connected to the furrowing mechanism for feeding seeds into the furrows. The soil covering mechanism is installed at the rear of the frame 1 through an adjustment bracket 33 for filling the furrows with seeds.

[0050] Preferably, the height adjustment bracket 51 can be bolted to the rear outer side of the frame 1, or other fasteners can be used.

[0051] See Figure 5 and Figure 8 The traction mechanism includes connecting plates 101 respectively installed on the outer front of the two frames 1. A traction rod 103 is installed on the outer side of the connecting plates 101 via a support rod 102. One end of the traction rod 103 is connected to an external tractor, and the other end is connected to a bevel gear 26. A first universal joint 201 is installed on the front of the bevel gear 26. A second universal joint 202 is installed on the first universal joint 201 via an external shaft 11. The second universal joint 202 is used to connect to the shaft of the external tractor to transmit power. The flexibility of the device movement can be increased through the first universal joint 201 and the second universal joint 202.

[0052] Specifically, the external rotating shaft 11 is driven on one side by a bevel gear 26.

[0053] See Figure 4 , Figure 6 and Figure 7 The rotary tillage mechanism includes an inner upper shaft 34 that passes through both ends of a bevel gear 26. The bevel gear 26 drives the inner upper shaft 34 for transmission. The inner upper shaft 34 is mounted on the frame 1 via a connecting device. Transmission connecting devices are installed at both ends of the inner upper shaft 34. Blade side plates 52 are fixed to the inner sides of both transmission connecting devices. The rotary tillage mechanism body is fixed between the two blade side plates 52. The two ends of the inner upper shaft 34 are connected to an inner lower shaft 35 via transmission connecting devices. Several rotary tillage blades 2 are mounted on the inner lower shaft 35 via positioning rings 56. The positioning ring 56 is used to fix the rotary tiller blades 2 so that the rotary tiller blades 2 will not fall off when the inner lower shaft 35 rotates. The outer rear part of the blade side plate 52 is equipped with an adjustment groove 54. The adjustment groove 54 can adjust the depth of the rotary tiller blades 2 according to different working environments, so that the rotary tiller can maintain the stability of the blade rotary tilling part during operation. Specifically, by adjusting the position of the blade side plate 52 in the adjustment groove 54, the tilling depth of the rotary tiller can be changed, thereby adapting to the needs of different operations and ensuring the uniformity and flatness of the land. The bottom of the adjustment groove 54 is equipped with an arc support plate 53.

[0054] Specifically, the upper internal rotating shaft 34 is driven on one side by a bevel gear 26;

[0055] The connecting device includes a fixing ring 203 installed on the upper internal rotating shaft 34, a fixing plate 204 installed at the bottom of the fixing ring 203, and the fixing plate 204 installed on the frame 1 for connecting the rotary tillage mechanism to the frame 1; the rotary tillage mechanism body includes a fixed long plate, and a mudguard 55 is installed at the rear of the fixed long plate to prevent soil splashing.

[0056] See Figure 8The transmission connection device includes a housing 22 fixed to the outside of the cutter side plate 52. A chain 36 is installed inside the housing 22. The two ends of the upper internal shaft 34 and the lower internal shaft 35 are connected by the chain 36 to drive the upper internal shaft 34 and the lower internal shaft 35 for transmission. Specifically, the external tractor provides power to the external shaft 11. The external shaft 11 is driven by a bevel gear 26, which further drives the upper internal shaft 34 for transmission. The upper internal shaft 34 drives the lower internal shaft 35 for transmission through the chain 36. Gears 24 are installed at both ends of the upper internal shaft 34 and the lower internal shaft 35. The gears 24 are adapted to the chain 36.

[0057] See Figure 3 , Figure 4 , Figure 9 , Figure 11 , Figure 14 and Figure 15The fertilization mechanism includes a fertilizer box 3. Several pendulums 25 are installed on the side of the fertilizer box 3 near the sowing mechanism. When the device moves, the pendulums 25 move to strike the outer wall of the sowing box 4, preventing seed blockage. Fertilization trapezoidal support plates 16 are installed at both ends of the bottom of the fertilizer box 3. Two parallel fertilization rectangular support rods 15 are installed between the inner bottom sides of the two trapezoidal support plates 16. The two fertilization rectangular support rods 15 are installed on the top of the frame 1 and are located at the front of the sowing mechanism. Several fertilizer inlets are cut into the bottom plate of the fertilizer box 3. Several support sleeves 39 are installed at the bottom of the fertilizer box 3, with the number of support sleeves 39 equal to the number of fertilizer inlets. The size of the top opening of the support sleeve 39 is adapted to the size of the fertilizer inlet. A fertilizer roller 38 is installed inside each support sleeve 39. The fertilizer roller 38 has first grooves 12 evenly distributed around its circumference. During use, by changing the radius of the first grooves 12 of different sizes, while the radius of the fertilizer roller 38 remains unchanged, the amount of fertilizer can be flexibly controlled to adapt to different needs. Different crops have different fertilization needs; two trapezoidal fertilization support plates 16 are equipped with fertilization box shafts 37, which pass through several support sleeves 39 and fertilization rollers 38. One end of the fertilization box shaft 37 is also equipped with a first pulley 10, which is connected to the sowing mechanism via a transmission belt 5; the fertilization rollers 38 pass through both sides of the support sleeves 39, and circular baffles 42 are respectively fitted at both ends of the fertilization rollers 38. The circular baffles 42 are installed on both sides of the support sleeves 39 and can prevent fertilizer from falling off the fertilization rollers 38. The top opening of the support sleeve 39 is fitted with a fertilizer screening shovel 17, which is used to screen fertilizer and remove fertilizer that is higher than the first groove 12 of the fertilizer roller 38. The amount of fertilizer can be controlled by adjusting the speed of the first pulley 10. The bottom of the support sleeve 39 is fitted with a feeding funnel 41 through an iron wire 40. The bottom of the feeding funnel 41 is fitted with a fertilizer pipe 20, which is used to sprinkle fertilizer on the surface of the hilling. The fertilizer pipe 20 falls in front of the rotary tiller 2, which makes it easier for the rotary tiller 2 to break up the hilling soil and fertilizer and mix them evenly.

[0058] Preferably, the inlet of the fertilizer box 3 can be narrow at the top and wide at the bottom, which can facilitate the fertilizer to slide down and prevent fertilizer blockage;

[0059] Preferably, two parallel rectangular fertilizer support rods 15 can be installed between the two trapezoidal fertilizer support plates 16 by bolts, or other connectors can be used.

[0060] Preferably, the number of pendulums 25 can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, or any other number that can knock on the outer wall of the seed box 4 to prevent seed blockage.

[0061] Preferably, the number of support sleeves 39 and fertilizer inlets can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, or any other number that can achieve the function of dispensing fertilizer.

[0062] See Figure 10 , Figure 12 , Figure 13 , Figure 14 and Figure 15 The sowing mechanism includes a sowing box 4, with trapezoidal sowing support plates 14 installed at both ends of the bottom of the sowing box 4. Two parallel rectangular sowing support rods 18 are installed between the inner bottom sides of the two trapezoidal sowing support plates 14. The two rectangular sowing support rods 18 are installed on the top of the frame 1 and are located at the rear of the fertilization mechanism. Several sowing inlets are opened on the bottom plate of the sowing box 4. Several partition plates 23 are installed longitudinally inside the sowing box 4, with the partition plates 23 located at the top of the sowing inlets. Several support sleeves 39 are installed at the bottom of the sowing box 4, with the top opening size of the support sleeves 39 corresponding to the sowing inlets. The sizes are matched, with equal numbers of support sleeves 39, seeding inlets, and partition plates 23. A first seeding roller 44 is installed inside each support sleeve 39, and a second seeding roller 45 is installed at one end of each first seeding roller 44. Second grooves 59 and third grooves 60 are evenly distributed circumferentially on both the first and second seeding rollers 44 and 45, respectively. During use, by changing the radii of the second grooves 59 and 60 to different sizes, while keeping the radii of the first and second seeding rollers 44 and 45 constant, the seeding amount can be flexibly controlled. Furthermore, during use, the first and second seeding rollers 44 and 45 can be moved horizontally to adjust the seeding rate. The area of ​​the second groove 59 and the third groove 60 inside the support sleeve 39 is adjusted by regulating the area of ​​the second groove 59 and the third groove 6, and the speed of the motor 6 is adjusted to further flexibly adjust the sowing amount to adapt to different sowing needs. The specific selection depends on the sowing requirements and seed size, typically ranging from 3mm to 30mm. A sowing box shaft 43 is installed on the two trapezoidal sowing support plates 14. The sowing box shaft 43 passes through several support sleeves 39, the first sowing roller 44, and the second sowing roller 45. A second pulley 13 and a drive device are sequentially installed at one end of the sowing box shaft 43. The second pulley 13 is connected to the fertilizer application mechanism via a transmission belt 5. The sowing roller 44 and the second sowing roller 45 pass through both sides of the support sleeve 39. A circular baffle 42 is fitted on the other end of the first sowing roller 44. A circular baffle 42 is also fitted on the side of the second sowing roller 45 away from the first sowing roller 44. The circular baffle 42 is installed on both sides of the support sleeve 39. A sowing sieving shovel 8 is installed at the top opening of the support sleeve 39 for sieving seeds. It can remove some seeds that are higher than the grooves of the first sowing roller 44 and the second sowing roller 45. A feeding funnel 41 is installed at the bottom of the support sleeve 39 through an iron wire 40. A sowing pipe 21 is installed at the bottom of the feeding funnel 41. The sowing pipe 21 is connected to the furrowing mechanism.

[0063] Preferably, the inlet of the seeding box 4 can be narrow at the top and wide at the bottom, which facilitates the downward sliding of seeds and prevents seed blockage;

[0064] Preferably, two parallel rectangular support rods 18 for sowing can be installed between the two trapezoidal support plates 14 by bolts, or other connectors can be used.

[0065] Preferably, the number of support sleeves 39, seeding and feeding ports and partition plates 23 can be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, or any other number that can achieve feeding.

[0066] See Figure 2 The drive unit includes a motor 6 that is coaxially connected to the second pulley 13 via a coupling 46 and a seed box shaft 43. The motor 6 and the coupling 46 can drive the seed box shaft 43. The seeding amount can be controlled by adjusting the speed of the motor 6. A motor support frame 7 is installed at the bottom of the motor 6 and is installed on the outside of the seed box shaft 43.

[0067] See Figure 2 , Figure 4 , Figure 16 and Figure 17 The trenching mechanism includes a first strip plate 30 installed at the bottom of the height adjustment frame 51. Several disc trenchers are installed on the front of the first strip plate 30 via hooks 29. The disc trenchers can create trenches on the soil. The disc trenchers include a support plate 50. A fixing sleeve 57 is fitted on the top of the support plate 50. The fixing sleeve 57 is installed on the rear of the first strip plate 30 via hooks 29. A sleeve 47 is installed on the bottom of the support plate 50. The two ends of the sleeve 47 are fitted with ring pieces 48 via washers 49 and fasteners. An arc plate 27 is installed on the top of the ring piece 48. The arc plate 27 has a slot. The support plate 50 passes through the arc plate 27 through the slot and connects to the sleeve 47. A spring 28 is installed on the support plate 50 located between the fixing sleeve 57 and the arc plate 27. A sowing pipe 21 passes through the arc plate 27 through the slot and connects to the two ring pieces 48. Seeds can be delivered into the trenches through the sowing pipe 21.

[0068] Preferably, the number of disc trenchers can be 1, 2, 3, 4, 5, 6, 7, 8, 9, or 10, or any other number that can create trenches on the soil.

[0069] See Figure 2 and Figure 3The soil covering mechanism includes a soil covering wheel 9, which can fill the trench containing seeds. Arc-shaped fixing plates 31 are installed at both ends of the soil covering wheel 9. A second strip plate 32 and a third strip plate 58 are installed between the two arc-shaped fixing plates 31 from front to back. The third strip plate 58 is installed at the rear of the frame 1 through an adjusting bracket 33. The pressure of the soil covering wheel 9 on the soil covering can be changed by adjusting the bracket 33.

[0070] The structure and working principle of this utility model will be further explained below:

[0071] The purpose of this utility model is to provide a multifunctional rotary tiller for sowing, fertilizing, and covering soil. When using this device, as the rotary tiller enters the field, the fertilizer in the fertilizer box 3 passes through the fertilizer sieving shovel 17, with part falling into the first groove 12 on the fertilizer roller 38, and the other part remaining in the fertilizer box 3. The radius of the first groove 12 on the fertilizer roller 38 is selected according to the fertilization requirements. As the fertilizer box rotates, the fertilizer in the first groove 12 is separated from the first groove 12 by centrifugal force and its own gravity, and is then sprinkled onto the surface of the hilling through the fertilizer pipe 20. Then, the rotary tiller blades 2 break up and mix the hilling soil and fertilizer, reducing its hardness. The disc furrow opener creates furrows on the broken hilling soil. The motor 6 and coupling 46 drive the sowing box rotating shaft 43 to operate. When the rotary tiller is in motion, the fertilizer in the fertilizer box 3... When the pendulum 25 strikes the seed box 4, and the first seeding roller 44 and the second seeding roller 45 rotate, some of the seeds in the seed box 4 fall into the second groove 59 and the third groove 60 on the first seeding roller 44 and the second seeding roller 45 through the seeding sieve 8, while the other part remains in the seed box 4. The radius of the second groove 59 and the third groove 60 on the first seeding roller 44 and the second seeding roller 45 is selected according to the sowing requirements and the size of the seeds, usually in the range of 3mm to 30mm. As the seeding roller shaft 43 rotates, the seeds are separated from the second groove 59 and the third groove 60 by the influence of centrifugal force and their own gravity, and are sent into the disc furrow opener through the sowing pipe 21, falling into the furrow to complete the sowing. Then the covering wheel 9 fills the furrow after sowing.

[0072] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0073] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can be appropriately combined to form other embodiments that can be understood by those skilled in the art. The above content is only for illustrating the technical concept of this utility model and should not be used to limit the scope of protection of this utility model. Any modifications made to the technical solutions based on the technical concept proposed by this utility model shall fall within the scope of protection of the claims of this utility model.

Claims

1. A multifunctional seeding, fertilizing, covering, and cultivating machine, characterized by, The utility model provides a double rack rotary tillage and seeding machine, including two parallelly arranged racks (1), the front of rack (1) is equipped with traction mechanism for connecting external tractor to provide power, and the traction mechanism is connected with rotary tillage mechanism through bevel gear (26), and the rotary tillage mechanism is installed on the rack (1) and is used for breaking and mixing, and the top of rack (1) is sequentially equipped with fertilization mechanism and seeding mechanism from front to back, and the fertilization mechanism and seeding mechanism are connected through transmission belt (5), and the side of seeding mechanism is equipped with driving device, and the rear outside of rack (1) is equipped with height adjusting frame (51), and the bottom of height adjusting frame (51) is equipped with ditching mechanism for opening ditch, and the seeding mechanism is connected with ditching mechanism and is used for sending seed into ditch, and the rear of rack (1) is equipped with covering mechanism through adjusting support (33) and is used for filling ditch with seed.

2. The multifunctional seeding and fertilizing and covering and rotary tillage machine according to claim 1, characterized in that, The traction mechanism includes connecting plates (101) installed on the front outside of the two racks (1) respectively, traction rods (103) are installed on the outside of the connecting plates (101) through support rods (102), one end of the traction rod (103) is connected to an external tractor, the other end is connected to the bevel gear (26), the front of the bevel gear (26) is installed with a first universal joint (201), the first universal joint (201) is installed with a second universal joint (202) through an external rotating shaft (11), and the second universal joint (202) is used to connect the rotating shaft of the external tractor.

3. The multifunctional seeding and fertilizing and covering and rotary tillage machine according to claim 1, characterized in that, The rotary tillage mechanism includes an internal upper end rotating shaft (34) penetrating through both ends of the bevel gear (26), the bevel gear (26) is used to drive the internal upper end rotating shaft (34) to transmit power, the internal upper end rotating shaft (34) is installed on the rack (1) through a connecting device, both ends of the internal upper end rotating shaft (34) are installed with transmission connecting devices respectively, both sides of the two transmission connecting devices are fixed with cutter side plates (52), a rotary tillage mechanism body is fixed between the two cutter side plates (52), both ends of the internal upper end rotating shaft (34) are connected with internal lower end rotating shafts (35) through transmission connecting devices, a plurality of rotary tillage cutters (2) are installed on the internal lower end rotating shafts (35) through positioning rings (56), the positioning rings (56) are used to fix the rotary tillage cutters (2), the rear of the outside of the cutter side plates (52) is installed with adjusting sliding grooves (54), the adjusting sliding grooves (54) are used to adjust the position of the cutter side plates (52), and the bottom of the adjusting sliding grooves (54) is installed with arc supporting plates (53).

4. The multifunctional seeding and fertilizing and covering and rotary tillage machine according to claim 3, characterized in that, The connecting device includes a fixing ring (203) installed on the internal upper end rotating shaft (34), the bottom of the fixing ring (203) is installed with a fixing plate (204), the fixing plate (204) is installed on the rack (1) and is used to connect the rotary tillage mechanism with the rack (1); the rotary tillage mechanism body includes a fixed long plate, and the rear of the fixed long plate is installed with a mudguard (55).

5. The multifunctional seeding and fertilizing and covering and rotary tillage machine according to claim 3, characterized in that, The transmission connection device comprises an outer shell (22) fixed outside the cutter side plate (52), a chain (36) is installed inside the outer shell (22), the two ends of the inner upper end rotating shaft (34) and the inner lower end rotating shaft (35) are connected through the chain (36) and used for driving the inner upper end rotating shaft (34) and the inner lower end rotating shaft (35) to transmit power, and gears (24) are installed at the two ends of the inner upper end rotating shaft (34) and the inner lower end rotating shaft (35) and matched with the chain (36).

6. The multifunctional seeding and fertilizing and covering and rotary tillage machine according to claim 1, characterized in that, The fertilizer applying mechanism comprises a fertilizer box (3), a plurality of pendulums (25) are installed on the side of the fertilizer box (3) close to the seeding mechanism and used for knocking the seeding mechanism to prevent the seed from being blocked; fertilizer trapezoidal support plates (16) are respectively installed at the two ends of the bottom of the fertilizer box (3), two fertilizer rectangular support rods (15) are installed between the bottom inner sides of the two fertilizer trapezoidal support plates (16) and arranged in parallel, the two fertilizer rectangular support rods (15) are installed on the top of the rack (1) and located in front of the seeding mechanism; a plurality of fertilizer discharge ports are formed in the bottom plate of the fertilizer box (3), a plurality of support sleeves (39) are installed at the bottom of the fertilizer box (3), the top openings of the support sleeves (39) are matched with the sizes of the fertilizer discharge ports, the number of the support sleeves (39) is equal to that of the fertilizer discharge ports, a fertilizer roller (38) is installed in each support sleeve (39), a plurality of first grooves (12) are uniformly distributed on the fertilizer roller (38) and used for adjusting the fertilizer amount; a fertilizer box rotating shaft (37) is installed on each fertilizer trapezoidal support plate (16) and penetrates through the plurality of support sleeves (39) and the fertilizer rollers (38), a first belt pulley (10) is further installed at one end of the fertilizer box rotating shaft (37) and connected with the seeding mechanism through a transmission belt (5); the fertilizer roller (38) penetrates through the two sides of the support sleeve (39), a circular ring baffle (42) is respectively sleeved at the two ends of the fertilizer roller (38), the circular ring baffles (42) are installed on the two sides of the support sleeve (39) and used for preventing the fertilizer from leaking from the two sides of the fertilizer roller (38), a fertilizer screening shovel (17) is installed at the top opening of the support sleeve (39) and used for screening the fertilizer, a discharge hopper (41) is installed at the bottom of the support sleeve (39) through an iron wire (40), a fertilizer pipeline (20) is installed at the bottom of the discharge hopper (41) and used for spraying the fertilizer on the soil surface.

7. The multifunctional seeding and fertilizing and covering and rotary tillage machine according to claim 1, characterized in that, The sowing mechanism comprises a sowing box (4), the bottom of the sowing box (4) is respectively provided with a sowing trapezoidal support plate (14) at both ends, two sowing rectangular support rods (18) are installed between the bottom of the inner side of the two sowing trapezoidal support plates (14) in parallel, the two sowing rectangular support rods (18) are installed on the top of the rack (1), and the two sowing rectangular support rods (18) are located at the rear of the fertilizing mechanism; a plurality of sowing discharge ports are formed in the bottom plate of the sowing box (4), a plurality of partition plates (23) are installed longitudinally in the sowing box (4), and the partition plates (23) are located at the top of the sowing discharge ports; a plurality of support sleeves (39) are installed at the bottom of the sowing box (4), the top opening size of the support sleeve (39) is matched with the size of the sowing discharge port, the number of the support sleeve (39), the sowing discharge port and the partition plate (23) is equal, a first sowing roller (44) is installed in each support sleeve (39), one end of the first sowing roller (44) is provided with a second sowing roller (45), the first sowing roller (44) and the second sowing roller (45) are respectively and circumferentially uniformly provided with a second groove (59) and a third groove (60) for adjusting the sowing amount; a sowing box rotating shaft (43) is installed on the two sowing trapezoidal support plates (14), the sowing box rotating shaft (43) penetrates through the plurality of support sleeves (39), the first sowing roller (44) and the second sowing roller (45), and one end of the sowing box rotating shaft (43) is further provided with a second belt pulley (13) and a driving device in sequence, the second belt pulley (13) is connected with the fertilizing mechanism through a transmission belt (5); the first sowing roller (44) and the second sowing roller (45) penetrate through the two sides of the support sleeve (39), a circular ring baffle (42) is arranged at the other end of the first sowing roller (44), a circular ring baffle (42) is also arranged on the side, away from the first sowing roller (44), of the second sowing roller (45), the circular ring baffles (42) are installed on the two sides of the support sleeve (39), a sowing screening shovel (8) is installed at the top opening of the support sleeve (39) and used for screening seeds, a discharge hopper (41) is installed at the bottom of the support sleeve (39) through the iron wire (40), a sowing pipeline (21) is installed at the bottom of the discharge hopper (41) and connected to the furrowing mechanism.

8. The multifunctional seeding and fertilizing and covering and cultivating machine according to claim 7, characterized in that, The driving device comprises a motor (6) which is coaxially connected with the second belt pulley (13) through a shaft coupling (46) and a sowing box rotating shaft (43), the motor (6) and the shaft coupling (46) are used for driving the sowing box rotating shaft (43), a motor support frame (7) is installed at the bottom of the motor (6) and the motor support frame (7) is installed outside the sowing box rotating shaft (43).

9. The multi-functional seeding and fertilizing and covering and cultivating machine according to claim 7, characterized in that, The furrowing mechanism comprises a first strip-shaped plate (30) mounted at the bottom of a height adjusting frame (51), a plurality of disc furrowers are mounted at the front of the first strip-shaped plate (30) through hooks (29), the disc furrower comprises a support plate (50), a fixing sleeve (57) is sleeved at the top of the support plate (50), the fixing sleeve (57) is mounted at the rear of the first strip-shaped plate (30) through the hooks (29), a sleeve (47) is mounted at the bottom of the support plate (50), the sleeve (47) is mounted with a circular ring piece (48) at two ends through gaskets (49) and fasteners, a circular arc plate (27) is mounted at the top of the circular ring piece (48), the support plate (50) penetrates through the circular arc plate (27) and is connected to the sleeve (47), springs (28) are mounted on the support plate (50) between the fixing sleeve (57) and the circular arc plate (27), and a seeding pipeline (21) penetrates through the circular arc plate (27) and is connected between the two circular ring pieces (48).

10. The multifunctional seeding and fertilizing and covering and cultivating machine according to claim 1, characterized in that, The covering mechanism comprises a covering wheel (9), arc-shaped fixing plates (31) are mounted at two ends of the covering wheel (9) respectively, a second strip-shaped plate (32) and a third strip-shaped plate (58) are mounted between the two arc-shaped fixing plates (31) from front to back, the third strip-shaped plate (58) is mounted at the rear of the rack (1) through an adjusting support (33), and the adjusting support (33) is used for changing the pressure of the covering wheel (9) on the soil covering.

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