Organic fertilizer applying device and control system and control method thereof

Abstract

The invention discloses an organic fertilizer applying device and a control system and a control method thereof, and belongs to the field of fertilizer applying devices, and the organic fertilizer applying device comprises a main material box, an auxiliary material box and a discharging assembly. The main material box is used for containing organic fertilizer, and at least one branch outlet is formed below the main material box. The at least one auxiliary material box is correspondingly connected with the branch outlets of the main material box; each auxiliary material box is internally provided with a discharging assembly. The discharging assembly comprises a rotatable screw rod, and a spiral blade is arranged on the outer side of the screw rod. The lower end of the screw rod is connected with a fertilizing pipe, and the other end of the fertilizing pipe is connected with a furrow opener. A discharging assembly is arranged in the auxiliary material box and comprises a rotatable screw rod, a spiral blade is arranged on the outer side of the screw rod, the lower end of the screw rod with the spiral blade extends into the fertilizing pipe, and the organic fertilizer in the auxiliary material box is discharged through the fertilizing pipe under guiding and conveying of the rotating spiral blade, so that the situation of fertilizing blockage is avoided. And moreover, the structures of the screw rod and the spiral blade are optimized, so that blockage is further avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of fertilizing devices, and more specifically, to an organic fertilizer fertilizing device, its control system, and control method. Background Art

[0002] When the soil cannot provide the nutrients required for the growth and development of crops, the act of artificially supplementing nutrient elements to the crops is called fertilization, so fertilizing crops is inevitable. However, there are some deficiencies in the existing soil fertilizing devices during use. The existing soil fertilizing devices generally apply fertilizers on the surface of the soil, or the fertilizing depth is relatively shallow, resulting in serious loss of fertilizers and low fertilizing quality.

[0003] In addition, a large amount of chemical fertilizers are used as fertilizers in existing fertilization, but long-term application of chemical fertilizers will lead to a decline in soil quality, which is not conducive to the green and high-quality development of agriculture. In China, there are abundant organic materials such as straw and livestock manure, with a wide range of sources. Reasonable application of organic fertilizers is of great significance to China's agricultural development and efficient utilization of resources.

[0004] However, the current organic fertilizer fertilization mainly covers the land surface by sprinkling, and then is mixed with the soil through rotary tillage and other methods. The existing organic fertilizer fertilization methods mostly have the following defects: 1. When the traditional organic fertilizer application method is used for rotary tillage and mixing, the soil disturbance is large, which is easy to damage the soil aggregate structure and is not conducive to carbon sequestration and emission reduction; 2. The traditional organic fertilizer application method has low efficiency and high energy consumption, and cannot complete the organic fertilizer application operation at one time; 3. The traditional organic fertilizer application method has a shallow tillage depth, and the organic fertilizers are mostly concentrated in the surface soil layer, and the application effect of organic fertilizers is poor, and deep fertilization cannot be achieved to meet the goal of efficient agricultural production; 4. The traditional organic fertilizer application method cannot accurately control the application amount of organic fertilizers, and the application is uneven; 5. During the organic fertilizer fertilization process, the material feeding is not smooth, and blockages are easy to occur. Summary of the Invention

[0005] In view of at least some of the problems in the prior art, the present invention provides an organic fertilizer fertilizing device, its control system, and control method to solve problems such as easy blockage of organic fertilizers.

[0006] To achieve the above object, the technical solution provided by the present invention is as follows: An organic fertilizer fertilizing device, comprising: A main material box for accommodating organic fertilizers, with at least one outlet provided below it; At least one auxiliary material box, corresponding to and connected to the outlet of the main material box; a feeding component is arranged in each auxiliary material box; The feeding component includes a rotatable screw, and a spiral blade is arranged on the outer side of the screw; the lower end of the screw is connected to a fertilizing pipe, and the other end of the fertilizing pipe is connected to a furrow opener; The shaft diameter of the screw is d, the outer diameter of the spiral blade is D, and the pitch of the spiral blade is s, where d = 20%D to 30%D and s = 0.8D to 1.0D.

[0007] As a further improvement, the outer diameter D of the spiral blade is 8 to 12 cm.

[0008] As a further improvement, the thickness of the spiral blade is 4 to 6 mm.

[0009] As a further improvement, the height of the furrow opener is greater than 20 cm.

[0010] As a further improvement, the entry angle α of the furrow opener is 18° to 22°.

[0011] As a further improvement, it further includes a shredding component located at the outlet of the main material box, and the shredding component includes a first meshing shaft and a second meshing shaft that mesh with each other.

[0012] As a further improvement, it further includes a bracket, and both the main material box and the auxiliary material box are fixedly arranged relative to the bracket; the bracket is also used to connect with a tractor.

[0013] As a further improvement, an adjustment component is arranged outside the fertilizer application pipe, and the adjustment component includes a second support seat connected to the fertilizer application pipe, a first support seat fixedly arranged relative to the bracket, and an adjustment rod connecting the second support seat and the first support seat.

[0014] The present invention also provides a control system for the organic fertilizer application device described above, including a humidity sensor, a speed sensor, and a control terminal. The humidity sensor is installed on the auxiliary material box and is used to monitor the humidity of the organic fertilizer; the speed sensor includes a traction speed sensor and a screw rotation speed sensor. The traction speed sensor is used to monitor the speed v at which the fertilizer application device is towed, and the screw rotation speed sensor is used to monitor the rotation speed n of the screw; both the humidity sensor and the speed sensor are connected to the control terminal.

[0015] The present invention also provides a control method for an organic fertilizer application device, including the organic fertilizer application device described above, including a humidity sensor, a speed sensor, and a control terminal. The humidity sensor is installed on the auxiliary material box and is used to monitor the humidity of the organic fertilizer; The speed sensor includes a traction speed sensor and a screw rotation speed sensor. The traction speed sensor is used to monitor the speed v at which the fertilizer application device is towed, and the screw rotation speed sensor is used to monitor the rotation speed n of the screw; Both the humidity sensor and the speed sensor are connected to the control terminal; When the organic fertilizer application device is towed and moved, the screw rotates, and the organic fertilizer in the main material box is conveyed into the fertilizer application pipe by the screw for fertilization. During the fertilization process, the humidity of the organic fertilizer is w. When 10% < w ≤ 40%, the control terminal corrects the speed v at which the fertilization device is towed and the rotational speed n of the screw, and the correction method is: ; ; is the target fertilization amount per unit area (kg / mu), is the filling coefficient, is the bulk density of the organic fertilizer.

[0016] Adopting the technical solution provided by the present invention, compared with the prior art, it has the following beneficial effects: (1) For the organic fertilizer application device of the present invention, a blanking component is arranged in the auxiliary material box. The blanking component includes a rotatable screw, and a spiral blade is arranged on the outside of the screw. The lower end of the screw with the spiral blade extends into the fertilizer application pipe. The organic fertilizer in the auxiliary material box is discharged through the fertilizer application pipe under the guidance and conveyance of the rotating spiral blade, thus avoiding the situation of fertilization blockage. Moreover, d = 20%D~30%D, s = 0.8D~1.0D. Compared with inorganic fertilizers, the organic fertilizer has larger particles and higher viscosity, which can increase the material dropping amount of the organic fertilizer and further avoid blockage.

[0017] (2) For the organic fertilizer application device of the present invention, the furrow opener fertilizes the fertilizer at least to a depth of 20 cm from the soil surface to reduce ammonia loss.

[0018] (3) For the organic fertilizer application device of the present invention, the entry angle of the furrow opener reduces the towing resistance of the fertilization device and improves the soil-breaking ability of the furrow opener.

[0019] (4) For the organic fertilizer application device of the present invention, an adjusting component is arranged on the outside of the fertilizer application pipe. The fertilizer application pipe is also connected to the furrow opener. The adjusting component is mainly used to adjust the heights of the furrow opener and the fertilizer application pipe, so as to adjust the fertilization depth of the fertilization device according to actual needs.

[0020] (5) For the organic fertilizer application device of the present invention, the fertilization device further includes a material crushing component. Specifically, the material crushing component is located at the outlet of the main material box. The crushed organic fertilizer enters the auxiliary material box and is finally conveyed to the fertilizer application pipe by the spiral blade for fertilization. The crushed organic fertilizer can be conveyed more smoothly through the spiral blade, and the fertilization is more uniform, and it is easier to control the fertilization amount.

[0021] (6) For the control method of the organic fertilizer fertilizing device of the present invention, when the target fertilizing amount per unit area and the screw structure parameters are fixed, the screw rotation speed n and the traction speed v are in a linear proportional relationship. Thus, the screw rotation speed n and the traction speed v are controlled by a braking control method, so as to more accurately achieve fertilization with the fertilizing amount G per unit area and ensure the uniformity and accuracy of fertilization.

[0022] Other technical problems that the organic fertilizer fertilizing device of the present invention can solve, other technical features included in the technical solution, and the advantages brought by these technical features will be further described in detail with reference to the accompanying drawings. Brief Description of the Drawings

[0023] Figure 1 It is a schematic diagram of the overall structure of the fertilizing device; Figure 2 It is a schematic diagram of the structure of the feeding component; Figure 3 It is an enlarged schematic diagram of the feeding component; Figure 4 It is a schematic diagram of the structure of the adjusting component; Figure 5 It is a schematic diagram of the adjusting component from another angle.

[0024] Label Description: 1, main material box; 11, first meshing shaft; 12, second meshing shaft; 2, auxiliary material box; 21, humidity sensor; 3, soil covering component; 4, feeding component; 41, driving part; 42, screw; 43, spiral blade; 44, fertilizing pipe; 5, furrow opener; 51, side; 6, adjusting component; 61, first support; 611, limiting hole; 62, second support; 63, adjusting rod; 7, support. Detailed Embodiments

[0025] To further understand the content of the present invention, the present invention will be described in detail with reference to the accompanying drawings and embodiments.

[0026] The structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those skilled in this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they do not have a technical essence. Any modification of the structure, change of the proportional relationship, or adjustment of the size, without affecting the effects that the present invention can produce and the purposes that can be achieved, should still fall within the scope that can be covered by the technical content disclosed by the present invention.

[0027] It should be noted that the terms "first", "second", etc. in the description, claims and above-mentioned drawings of this application are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that such data used can be interchanged under appropriate circumstances, so as to implement the embodiments of this application described herein.

[0028] In this application, the terms "upper", "lower", "left", "right", "front", "rear", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe this application and its embodiments, and are not used to limit that the indicated device, element or component must have a specific orientation, or be constructed and operated in a specific orientation. And, in addition to being able to represent the orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in this application can be understood according to specific circumstances.

[0029] This embodiment provides an organic fertilizer application device, which is applied to the application of organic fertilizers. Organic fertilizers mainly refer to farmyard manures, and any fertilizers using organic substances (compounds containing carbon elements) are called organic fertilizers. In this embodiment, organic manure is mainly used for illustration, and the organic manure is applied through this application device.

[0030] As Figure 1 shown, an organic fertilizer application device includes a main material box 1, an auxiliary material box 2 and a blanking assembly 4. It also includes a bracket 7. The main material box 1 and the auxiliary material box 2 are both fixedly arranged relative to the bracket 7, and the main material box 1 is fixedly installed on the bracket 7. The auxiliary material box 2 can be similarly fixedly connected to the bracket 7 or fixedly connected to the main material box 1. The bracket 7 is also used to be connected to a tractor for driving the application device to move. The tractor can be a tractor or the like. Relative to the advancing direction of the application device, rotating ground wheels (not shown in the figure) are respectively installed on the left and right sides of the bracket 7. When the tractor advances, it drives the rotating ground wheels to rotate, thereby driving the application device to advance.

[0031] Specifically, the main material box 1 is used to hold organic fertilizers, and at least one discharge port is provided below it. See Figure 1 In this embodiment, five discharge ports are provided below the main material box 1, and the discharge ports are arranged at intervals. The organic fertilizers in the main material box 1 flow out through the discharge ports.

[0032] The auxiliary material box 2 has at least one, corresponding to the branch outlet of the main material box 1 and connected thereto. The number of the auxiliary material boxes 2 provided corresponds to the number of the branch outlets of the main material box 1. For example, in this solution, five branch outlets are provided on the main material box 1, and similarly, five auxiliary material boxes 2 need to be provided. The inlet of one auxiliary material box 2 is connected to one branch outlet of the main material box 1, and the organic fertilizer flowing out of the branch outlet of the main material box 1 enters the auxiliary material box 2.

[0033] A blanking component 4 is arranged in each auxiliary material box 2. The blanking component 4 includes a rotatable screw 42, and a spiral blade 43 is arranged on the outer side of the screw 42; the lower end of the screw 42 is connected to a fertilizing pipe 44, and the other end of the fertilizing pipe 44 is connected to a furrow opener 5.

[0034] Specifically, an outlet is arranged below the auxiliary material box 2, and the side of the outlet of the auxiliary material box 2 is inclined, so that the organic fertilizer can gather at the outlet. One end of the fertilizing pipe 44 is connected to the outlet of the auxiliary material box 2, and the lower end of the screw 42 with the spiral blade 43 extends into the fertilizing pipe 44, and the other end of the fertilizing pipe 44 is connected to the furrow opener 5. During the forward movement of the fertilizing device, the furrow opener 5 extends into the field, the organic fertilizer in the main material box 1 enters the auxiliary material box 2 through the branch outlet, the spiral blade 43 rotates with the screw 42 to convey the organic fertilizer into the fertilizing pipe 44, and finally it is discharged through the fertilizing pipe 44 and fertilized under the soil.

[0035] A soil covering component 3 is further arranged at the rear side of the fertilizing device, and when the soil covering component 3 rotates, it covers the fertilized place.

[0036] The upper end of the screw 42 is connected to a driving member 41, and the driving member 41 is used to drive the screw 42 to rotate. In a specific case, the driving member 41 is selected as a motor. In order to avoid interference between the spiral blade 43 and the fertilizing pipe 44 during rotation, a certain gap is provided between the outer side of the spiral blade 43 and the inner side of the fertilizing pipe 44, and this gap can also avoid fertilizer blockage at the same time.

[0037] In this embodiment, the shaft diameter of the screw 42 is d, the outer diameter of the spiral blade 43 is D, and the pitch of the spiral blade 43 is s, where d = 20%D - 30%D, s = 0.8D - 1.0D.

[0038] Combined Figure 2 and Figure 3 As shown, in this solution, a blanking component 4 is arranged in the auxiliary material box 2. The blanking component 4 includes a rotatable screw 42, and a spiral blade 43 is arranged on the outer side of the screw 42. The lower end of the screw 42 with the spiral blade 43 extends into the fertilizing pipe 44. The organic fertilizer in the auxiliary material box 2 is discharged through the fertilizing pipe 44 under the guidance and conveyance of the rotating spiral blade 43, thus avoiding the situation of fertilizing blockage. And d = 20%D - 30%D, s = 0.8D - 1.0D. The organic fertilizer has larger particles and higher viscosity compared with the inorganic fertilizer, which can increase the dropping amount of the organic fertilizer and further avoid blockage.

[0039] The fertilizing device in this solution is mainly used for applying organic fertilizers, where the organic fertilizers are organic manure. Specifically, the bulk density of the organic fertilizers is between 0.6 and 0.8 t / m³. The bulk density is also known as the volume density. The bulk density of the organic fertilizers refers to the mass per unit volume measured immediately after freely filling the organic fertilizers into a certain container.

[0040] As a further improvement, the outer diameter D of the spiral blade 43 is 8 - 12 cm. In a specific embodiment, the outer diameter D of the spiral blade 43 can be 8 cm, 8.5 cm, 9 cm, 9.5 cm, 10 cm, 10.5 cm, 11 cm, 11.5 cm, or 12 cm.

[0041] Furthermore, the thickness of the spiral blade 43 is 4 - 6 mm. In a specific embodiment, the thickness of the spiral blade 43 can be 4 mm, 4.1 mm, 4.2 mm, 4.3 mm, 4.4 mm, 4.5 mm, 4.6 mm, 4.7 mm, 4.8 mm, 4.9 mm, 5 mm, 5.1 mm, 5.2 mm, 5.3 mm, 5.4 mm, 5.5 mm, 5.6 mm, 5.7 mm, 5.8 mm, 5.9 mm, or 6 mm.

[0042] Regarding a certain gap is set between the outside of the spiral blade 43 and the inside of the fertilizer pipe 44, and this gap is taken as 2 - 3 cm.

[0043] Combined with the organic fertilizers in this embodiment, the organic fertilizers can be discharged through the fertilizer pipe 44 only after being transported by the spiral blade 43 in the auxiliary material box 2. Compared with inorganic fertilizers, the organic fertilizer particles are larger and have a higher moisture content, so that d = 20%D - 30%D. While meeting the strength of the screw 42, the reduction of the fertilizer delivery volume is avoided. Similarly, s = 0.8D - 1.0D, avoiding that the pitch of the spiral blade 43 is too small, which affects the transportation of organic fertilizer particles, and the pitch of the spiral blade 43 is too large, reducing the fertilization effect and resulting in uneven fertilization.

[0044] Combined Figure 4 and Figure 5 As shown, as a preferred embodiment, the height of the furrow opener 5 is greater than 20 cm. Applying the fertilizer at least to a depth of 20 cm from the soil surface can reduce ammonia loss. According to experiments, the ammonia volatilization loss reaches 30% when fertilizing on the soil surface, and the ammonia volatilization loss can be reduced to less than 10% when applying deep fertilizer at 20 cm; deep soil fertilization can also promote the downward growth of crop roots.

[0045] Preferably, the entry angle α of the furrow opener 5 is 18° to 22°. Specifically, the entry angle is the angle of the upper inclined side 51 of the furrow opener 5 relative to the plane of the field. Setting the entry angle reduces the traction resistance of the fertilizing device and improves the soil-breaking ability of the furrow opener 5.

[0046] In some cases, due to different soil conditions or different functions, the required fertilizing depth is different. To improve the versatility of the fertilizing device, an adjusting component 6 is provided outside the fertilizer pipe 44. The fertilizer pipe 44 is also connected to the furrow opener 5. The adjusting component 6 is mainly used to adjust the heights of the furrow opener 5 and the fertilizer pipe 44, so as to adjust the fertilizing depth of the fertilizing device according to actual needs. Specifically, the adjusting component 6 includes a second support 62 connected to the fertilizer pipe 44, a first support 61 fixedly arranged relative to the bracket 7, and an adjusting rod 63 connecting the second support 62 and the first support 61. The second support 62 is movably connected relative to the first support 61. In a specific embodiment, see Figure 5 In, one end of the adjusting rod 63 is fixedly connected to the second support 62, and the other end is slidably connected to the first support 61. When adjustment is required, move the second support 62 to the required position, and the end of the second support 62 close to the first support 61 can be fixed in the limit hole 611 by bolts or screws, etc. The limit hole 611 is opened on the first support 61.

[0047] In this solution, the organic fertilizer contained in the main material box 1 has relatively large organic fertilizer particles. When being conveyed by the spiral blade 43, it is sometimes prone to jamming, such as jamming at the gap between the spiral blade 43 and the fertilizer pipe 44, resulting in the stagnation of the fertilizing process. To avoid this situation, the fertilizing device further includes a crushing component, specifically, the crushing component is located at the outlet of the main material box 1. Combining Figure 2 and Figure 3 As shown, a crushing component is provided at each outlet. The crushing component includes a first meshing shaft 11 and a second meshing shaft 12 that mesh with each other. Both the outer sides of the first meshing shaft 11 and the second meshing shaft 12 have meshing teeth. A driving motor can be connected to the first meshing shaft 11 and the second meshing shaft 12 to drive the first meshing shaft 11 and the second meshing shaft 12 to rotate. There are multiple first meshing shafts 11, and adjacent first meshing shafts 11 can be connected by a coupling; similarly, there are multiple second meshing shafts 12, and adjacent second meshing shafts 12 can be connected by a coupling. The coupling is located at the interval between the outlets of the main material box 1 and does not occupy the space of the outlet. The organic fertilizer in the main material box 1 flows through the outlet to between the first meshing shaft 11 and the second meshing shaft 12, and the rotating first meshing shaft 11 and second meshing shaft 12 crush the organic fertilizer. The crushed organic fertilizer enters the auxiliary material box 2 and is finally conveyed to the fertilizer pipe 44 through the spiral blade 43 for fertilization. The crushed organic fertilizer can be conveyed more smoothly through the spiral blade 43, and the fertilization is more uniform, and it is easier to control the fertilization amount.

[0048] The fertilizing device in this solution can deeply apply fertilizers to a depth of more than 20 cm, reducing soil disturbance. Optimize the furrow opener 5 to reduce the traction power consumption of the fertilizing device. Optimize the spiral blade 43 and the screw 42 to reduce the problem of easy blockage during the application of organic fertilizers. At the same time, before fertilization, the material is crushed through the crushing component, which further avoids blockage of organic fertilizers on the one hand, and makes the fertilization more uniform, facilitating the control of the fertilization amount.

[0049] This application also provides a control system for the organic fertilizer fertilizing device described above, including a humidity sensor 21, a speed sensor, and a control terminal. The humidity sensor 21 is installed on the auxiliary material box 2 for monitoring the humidity of the organic fertilizer; the speed sensor includes a traction speed sensor and a screw rotation speed sensor. The traction speed sensor is used to monitor the speed v at which the fertilizing device is towed, and the screw rotation speed sensor is used to monitor the rotation speed n of the screw 42; both the humidity sensor 21 and the speed sensor are connected to the control terminal.

[0050] For different fields and different crops, there are quantitative requirements for fertilization.

[0051] This application also provides a control method for the organic fertilizer fertilizing device, including the organic fertilizer fertilizing device described above, which is used to control the speed at which the fertilizing device is towed and the rotation speed of the screw 42. Specifically, when the organic fertilizer fertilizing device is towed and moved, the screw 42 rotates, and the organic fertilizer in the main material box 1 is transported through the screw 42 into the fertilizing pipe 44 for fertilization.

[0052] During the fertilization process, there is a relationship between the fertilization amount per unit area and the speed v at which the fertilizing device travels and the rotation speeds n of the spiral blade 43 and the screw 42, which is difficult to adjust manually. In this solution, the relationship between the speed v and the rotation speed n is adjusted through the control terminal.

[0053] Specifically as follows, the humidity of the organic fertilizer is w. When 10% < w ≤ 40%, the control terminal corrects the relationship between the speed v at which the fertilizing device is towed and the rotation speed n of the screw 42, and the correction method is: ; where ; G is the target fertilization amount per unit area (kg / mu), is the filling coefficient. is a constant, and its value range is 0.25 - 0.5, which is related to the bulk density of the organic fertilizer. When the bulk density is relatively large, a high value is taken, such as 0.4 or 0.5. When the bulk density is relatively small, a low value is taken, such as 0.3 or 0.25.

[0054] As described above, when , the structural parameters of the screw ( ), when fixed, there is a linear proportional relationship between the screw rotation speed n and the traction speed v. At the same time, according to the different humidity of the organic fertilizer, the screw rotation speed n and the traction speed v are adjusted, and the screw rotation speed n and the traction speed v are automatically controlled, so as to more accurately achieve the fertilization amount G per unit area and ensure the uniformity and accuracy of fertilization.

[0055] In addition, when w ≤ 10%, the humidity sensor does not need to intervene in the work. At this time .

[0056] When w > 40%, the humidity of the organic fertilizer is relatively high and the water content is relatively high. It is difficult for the screw to control the fertilization amount. At this time, it is necessary to stop the machine for inspection or reduce the speed of the screw. When the screw speed is reduced is reduced to , to avoid the situation that the excessive screw rotation speed n causes the organic fertilizer to be thrown out due to centrifugal force and separated from the spiral blade 43, making it difficult to be transported by the spiral blade 43.

[0057] In this solution, by reasonably setting the structure of the feeding component, the problem of easy blockage in the mechanical use of organic fertilizer is solved. At the same time, a control system is set to control the traction speed of the fertilization device and the rotation speed of the feeding component, making the equipment intelligent, mechanical, precise and efficient.

[0058] When the humidity w of the organic fertilizer is 10% < w ≤ 40%, the traction speed of the humidity compensation and correction fertilization device and the rotation speed of the feeding component are adjusted to more precisely control the fertilization amount G.

[0059] Adopting hierarchical control, for different humidity conditions of the organic fertilizer, different coping methods are adopted for the traction speed of the fertilization device and the rotation speed of the feeding component, so as to accurately control the fertilization amount G according to the state of the organic fertilizer. Moreover, the device can cope with different working environments. For example, if it rains during fertilization and the humidity of the organic fertilizer changes, due to the introduction of the humidity control model, it can cope with the changes in the external environment and ensure the smooth implementation of the operation.

[0060] Some terms referred to in this application, such as "installed", "set", "equipped with", "connected", should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there is an internal connection between two devices, components or parts. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

[0061] The above has schematically described the present invention and its implementation manners. This description is not restrictive. What is shown in the drawings is only one of the implementation manners of the present invention, and the actual structure is not limited thereto. Therefore, if those of ordinary skill in the art are inspired by it and, without departing from the gist of the present invention, creatively design structural manners and embodiments similar to this technical solution, they shall fall within the protection scope of the present invention.

Claims

1. An organic fertilizer application device, characterized in that: including, a main material box (1) for containing organic fertilizer, with at least one discharge outlet provided below it; a secondary material box (2), having at least one, connected corresponding to the discharge outlet of the main material box (1); a blanking component (4) is arranged in each secondary material box (2); the blanking component (4) includes a rotatable screw rod (42), and a spiral blade (43) is arranged on the outer side of the screw rod (42); the lower end of the screw rod (42) is connected to a fertilizing pipe (44), and the other end of the fertilizing pipe (44) is connected to a furrow opener (5); the shaft diameter of the screw rod (42) is d, the outer diameter of the spiral blade (43) is D, and the pitch of the spiral blade (43) is s, where d = 20%D~30%D and s = 0.8D~1.0D.

2. The organic fertilizer application device according to claim 1, wherein: the outer diameter D of the spiral blade (43) is 8~12 cm.

3. The organic fertilizer application device according to claim 1 or 2, characterized in that: the thickness of the spiral blade (43) is 4~6 mm.

4. The organic fertilizer application device according to claim 3, characterized in that: the height of the furrow opener (5) is greater than 20 cm.

5. The organic fertilizer application device according to claim 4, characterized in that: the entry angle α of the furrow opener (5) is 18°~22°.

6. The organic fertilizer application device according to claim 3, characterized in that: also includes a material crushing component located at the discharge outlet of the main material box (1), and the material crushing component includes a first meshing shaft (11) and a second meshing shaft (12) that mesh with each other.

7. The organic fertilizer application device according to claim 3, characterized in that: also includes a bracket (7), and both the main material box (1) and the secondary material box (2) are fixedly arranged relative to the bracket (7); the bracket (7) is also used to connect to a tractor.

8. The organic fertilizer application device according to claim 7, characterized in that: the fertilizing pipe (44) is also connected to an adjusting component (6), and the adjusting component (6) includes a second support (62) connected to the fertilizing pipe (44), a first support (61) fixedly arranged relative to the bracket (7), and an adjusting rod (63) connecting the second support (62) and the first support (61).

9. The control system of the organic fertilizer application device according to any one of claims 1-8, characterized in that: including a humidity sensor (21), a speed sensor, and a control terminal, the humidity sensor (21) is installed on the secondary material box (2) for monitoring the humidity of the organic fertilizer; the speed sensor includes a traction speed sensor and a screw rod rotation speed sensor, the traction speed sensor is used to monitor the speed v at which the fertilizing device is towed, and the screw rod rotation speed sensor is used to monitor the rotation speed n of the screw rod (42); both the humidity sensor (21) and the speed sensor are connected to the control terminal.

10. A control method for an organic fertilizer application device, characterized in that: including the organic fertilizer fertilizing device according to any one of claims 1-8; also includes a humidity sensor (21), a speed sensor, and a control terminal, the humidity sensor (21) is installed on the secondary material box (2) for monitoring the humidity of the organic fertilizer; the speed sensor includes a traction speed sensor and a screw rod rotation speed sensor, the traction speed sensor is used to monitor the speed v at which the fertilizing device is towed, and the screw rod rotation speed sensor is used to monitor the rotation speed n of the screw rod (42); both the humidity sensor (21) and the speed sensor are connected to the control terminal; when the organic fertilizer fertilizing device is towed and moved, the screw rod (42) rotates, and the organic fertilizer in the main material box (1) is transported into the fertilizing pipe (44) through the screw rod (42) for fertilization; During the fertilization process, the humidity of the organic fertilizer is w. When 10% < w ≤ 40%, the control terminal corrects the speed v at which the fertilization device is towed and the rotation speed n of the screw (42), and the correction method is as follows: ； ； G is the fertilization amount per unit area of the target (kg / mu), is the filling coefficient, is the bulk density of the organic fertilizer.

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