A fertilizer application device for corn planting

Abstract

This utility model relates to the field of corn planting fertilization technology, and discloses a fertilization device for corn planting, including a base. A discharge box is located at the center of the upper surface of the base, and a mixing box is located at the center of the upper surface of the discharge box. A conveying hopper is fixedly connected to the upper surface of the mixing box. Solenoid valves are fixedly connected to both sides of the upper surface of the conveying hopper. Weight sensors are located at the upper ends of the two solenoid valves, and raw material tanks are located above the two weight sensors. A low-temperature crushing structure is provided on one side wall of each of the two raw material tanks. The low-temperature crushing structure includes a frame, which is fixedly connected to one side wall of the raw material tank. Two gears are rotatably connected in a front-to-back arrangement inside the raw material tank. In this utility model, the fertilizer raw materials are crushed at low temperatures using the low-temperature crushing structure, reducing the heat generated during the crushing process that could cause the fertilizer to melt and thus prevent discharge blockage.

Description

Technical Field

[0001] This utility model relates to the field of corn planting and fertilization technology, and in particular to a fertilization device for corn planting. Background Technology

[0002] Corn, also known as maize, is an important food crop widely grown around the world. As a vital food, feed, and industrial raw material crop globally, its cultivation involves several key stages. Fertilization is a crucial aspect of corn cultivation; proper fertilization can not only increase corn yield but also improve its quality.

[0003] There are still some problems in the use of existing fertilizer application devices for corn planting. For example, Chinese patent discloses a fertilizer application device for corn planting (publication number CN222707002U). Although this patented technology is equipped with an active crushing wheel and screen plate in the raw material tank to prevent the wet and lumpy fertilizer from clogging the feed pipe when weighing directly, thus improving the accuracy and efficiency of weighing, and crushing the fertilizer in advance so that the small particles of fertilizer are easier for corn to absorb, the heat generated during the crushing process can cause the fertilizer to melt, resulting in blockage of the discharge. Therefore, those skilled in the art have provided a fertilizer application device for corn planting to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a fertilizer application device for corn planting. This device uses a low-temperature crushing structure to crush fertilizer raw materials at low temperatures, reducing the heat generated during the crushing process that could cause the fertilizer to melt and thus prevent blockage at the discharge point.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fertilizer application device for corn planting, comprising a base, a discharge box at the center of the upper end face of the base, a mixing box at the center of the upper end face of the discharge box, a conveying hopper fixedly connected to the upper end face of the mixing box, and solenoid valves fixedly connected to both sides of the upper end face of the conveying hopper. Each of the two solenoid valves has a weight sensor at its upper end, and each of the two weight sensors has a raw material tank at its upper end. Each of the two raw material tanks has a low-temperature crushing structure on one side wall.

[0006] The low-temperature crushing structure includes a frame, which is fixedly connected to one side wall of the raw material tank. Inside the raw material tank, two gears are rotatably connected in a front-to-back arrangement. A second reduction motor is provided on one side wall of the frame near the front gear. The output end of the second reduction motor passes through the frame and extends into the frame, and its end is fixedly connected to the front gear. The other ends of the two gears pass through the inner side wall of the frame and the inner side wall of the raw material tank in sequence and extend into the interior of the raw material tank. Each end is fixedly connected to a crushing wheel. A U-shaped pipe is provided at the end of each crushing wheel away from the second reduction motor. A rotary joint is fixedly connected to the ends of the two crushing wheels on one side of the two U-shaped pipes. A heat insulation box is fixedly connected to the fixed ends of the two rotary joints. A semiconductor cooling chip is provided inside each of the two heat insulation boxes. Heat dissipation fins are provided on both sides of each of the two semiconductor cooling chips. A cooling fan is provided on one side of each of the two heat dissipation fins.

[0007] Through the above technical solution, the cold and hot ends of four semiconductor cooling chips respectively cool and heat eight heat dissipation fins. Four cooling fans extract air from the inside of the four heated heat dissipation fins, creating negative pressure inside the fins. Then, four rotary joints extract air from the inside of four U-shaped pipes, creating negative pressure inside the pipes. Finally, through another channel of the four rotary joints, the cooled air from the four heat dissipation fins is drawn into the four U-shaped pipes, thereby cooling the four crushing wheels with cold air. The heat generated during the crushing process is cooled by the cold air, thus preventing the generation of heat during the crushing process and preventing the fertilizer raw materials from melting and causing blockages.

[0008] Furthermore, each of the two heat insulation boxes is provided with a dustproof net on the end face away from the two rotary joints. The input and output ends of the rotating ends of the two rotary joints are respectively connected to the input and output ends of the two U-shaped pipes. The input and output ends of the fixed ends of the two rotary joints pass through the two heat insulation boxes and extend to one side of the four heat dissipation fins.

[0009] The above technical solution prevents dust from entering through the dustproof net, thus avoiding affecting the heat exchange efficiency of the heat sink fins, and also facilitates the connection between the U-shaped pipe and the heat insulation box via a rotary joint.

[0010] Furthermore, brackets are fixedly sleeved on the outer side walls of the two fixed ends of the rotary joints, and the two brackets are respectively fixedly connected to the front and rear end faces of the raw material tank.

[0011] The above technical solution facilitates the fixing of the two rotary joints.

[0012] Furthermore, the mixing box is equipped with multiple vibration components, and the lower inner wall of the mixing box is provided with discharge ports on both sides. The two discharge ports pass through the lower inner wall of the mixing box and the upper end face of the discharge box to the inner side of the discharge box. The inner side of the mixing box is provided with discharge structures.

[0013] The discharge structure includes a first geared servo motor, which is fixedly connected to one side wall of the discharge box. The output end of the first geared servo motor passes through one side wall of the discharge box and extends into the interior of the discharge box. A spiral conveying rod is fixedly connected to the end of the first geared servo motor. The spiral blade of the spiral conveying rod is provided with multiple protrusions.

[0014] Through the above technical solution, two first-stage reduction servo motors are started, and the two first-stage reduction servo motors drive two spiral conveyor rods to rotate, thereby conveying the fertilizer that has entered the discharge box to both sides. During the conveying process, multiple protrusions pressurize the fertilizer, and the contact area with the fertilizer is increased through geometric interference effect, which breaks the adhesion between the fertilizer and the inner wall of the discharge box, reduces the amount of fertilizer adhering to the inner wall of the discharge box and reduces the blockage rate, thereby improving the safety of use.

[0015] Furthermore, a hub is provided at each of the four opposite corners of the lower end face of the base, and a pusher is fixedly connected to the center of the upper end face of the base near the front, and a programmable control box is fixedly connected to the upper end face of the pusher.

[0016] The above technical solution, which uses a pusher for propulsion and a programmable control box for integrated control, is a commonly used technique in existing control systems and will not be elaborated further here.

[0017] Furthermore, both of the raw material tanks are provided with top covers on their upper surfaces, and both top covers are provided with feed hoppers at the center of their upper surfaces;

[0018] The above technical solution facilitates the addition of different fertilizers through two feed hoppers.

[0019] Furthermore, discharge pipes are provided on both sides of the lower end face of the discharge box;

[0020] The above technical solution facilitates fertilizer application after it is discharged through two discharge pipes.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the fertilizer application device for corn planting uses a low-temperature crushing structure to crush fertilizer raw materials at low temperature, reducing the heat during the crushing process that could cause the fertilizer to melt and thus prevent the discharge blockage.

[0023] 2. In this utility model, two first-reduction servo motors are started, and the two first-reduction servo motors drive two spiral conveying rods to rotate, thereby conveying the fertilizer that has entered the discharge box to both sides. During the conveying process, multiple protrusions pressurize the fertilizer, and the contact area with the fertilizer is increased through geometric interference effect, which breaks the adhesion between the fertilizer and the inner wall of the discharge box, reduces the amount of fertilizer adhering to the inner wall of the discharge box and reduces the blockage rate, thereby improving the safety of use. Attached Figure Description

[0024] Figure 1 This is a perspective view of a fertilizer application device for corn planting proposed in this utility model;

[0025] Figure 2 This is a three-dimensional sectional view of a fertilizer application device for corn planting proposed in this utility model;

[0026] Figure 3 This is a top sectional view of a low-temperature crushing structure for a fertilizer application device for corn planting proposed in this utility model;

[0027] Figure 4 This is a perspective view of a spiral conveyor rod for a fertilizer application device used in corn planting, as proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Discharge structure; 3. Hub; 4. Push handle; 5. Programmable control box; 6. Discharge box; 7. Feed hopper; 8. Raw material tank; 9. Low temperature crushing structure; 10. Weight sensor; 11. Solenoid valve; 12. Batching box; 13. Discharge pipe; 14. Feed port; 15. Feed hopper; 16. Top cover; 17. Vibration assembly;

[0030] 201. First geared servo motor; 202. Screw conveyor rod; 203. Protrusion;

[0031] 901. Frame; 902. Second geared motor; 903. Gear; 904. Crushing wheel; 905. Rotary joint; 906. Bracket; 907. Semiconductor cooling chip; 908. Heat dissipation fins; 909. Cooling fan; 910. Dustproof net; 911. U-shaped pipe; 912. Insulation box. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1-4 An embodiment of this utility model provides a fertilizer application device for corn planting, including a base 1, a discharge box 6 at the center of the upper end face of the base 1, a mixing box 12 at the center of the upper end face of the discharge box 6, a conveying hopper 7 fixedly connected to the upper end face of the mixing box 12, and solenoid valves 11 fixedly connected to both sides of the upper end face of the conveying hopper 7. A weight sensor 10 is provided at the upper end of each of the two solenoid valves 11, and a raw material tank 8 is provided at the upper end of each of the two weight sensors 10. A low-temperature crushing structure 9 is provided on one side wall of each of the two raw material tanks 8.

[0034] The low-temperature crushing structure 9 includes a frame 901, which is fixedly connected to one side wall of the raw material tank 8. Two gears 903 are rotatably connected in a front-to-back arrangement inside the raw material tank 8. A second reduction motor 902 is located on one side wall of the frame 901 near the front gear 903. The output end of the second reduction motor 902 passes through the frame 901 and extends into the interior of the frame 901, and its end is fixedly connected to the front gear 903. The other ends of both gears 903 pass through the inner side wall of the frame 901 and the inner side wall of the raw material tank 8, extending into the interior of the raw material tank 8, and each end is fixedly connected to a crushing wheel 904. A U-shaped pipe 911 is located at the end of each crushing wheel 904 away from the second reduction motor 902. A rotary joint 905 is fixedly connected to the end of each crushing wheel 904 on one side of the two U-shaped pipes 911. A heat insulation box 912 is fixedly connected to the fixed end of each of the two rotary joints 905. A semiconductor cooling chip 90 is located inside each of the two heat insulation boxes 912. 7. Two semiconductor cooling chips 907 are equipped with heat dissipation fins 908 on both sides. A cooling fan 909 is provided on one side of each of the two heat dissipation fins 908. The cold and hot ends of the four semiconductor cooling chips 907 respectively cool and heat the eight heat dissipation fins 908. The four cooling fans 909 extract the air from the four heated heat dissipation fins 908, creating a negative pressure inside the four heat dissipation fins 908. Then, the air is extracted from the four U-shaped pipes 911 through the four rotary joints 905, creating a negative pressure inside the four U-shaped pipes 911. Then, the air inside the four heat dissipation fins 908 after the temperature is reduced is drawn into the four U-shaped pipes 911 through another channel of the four rotary joints 905. Thus, the four crushing wheels 904 are cooled by cold air. The heat generated during the crushing process is cooled by cold air, so that no heat is generated during the crushing process, preventing the fertilizer raw materials from melting and causing blockage.

[0035] like Figure 1 , 2As shown in Figure 3, each of the two heat insulation boxes 912 is provided with a dustproof net 910 on the end face away from the two rotary joints 905. The input and output ends of the rotating ends of the two rotary joints 905 are respectively connected to the input and output ends of the two U-shaped pipes 911. The input and output ends of the fixed ends of the two rotary joints 905 pass through the two heat insulation boxes 912 and lead to one side of the four heat dissipation fins 908. The dustproof net 910 prevents dust from entering and affecting the heat exchange efficiency of the heat dissipation fins 908, and facilitates the connection between the U-shaped pipes 911 and the heat insulation box 912 through the rotary joints 905.

[0036] Each of the two rotary joints 905 has a bracket 906 fixedly sleeved on the outer side wall of the fixed end. The two brackets 906 are fixedly connected to the front and rear end faces of the raw material tank 8 respectively, so as to facilitate the fixation of the two rotary joints 905.

[0037] like Figure 2 and 4 As shown, the mixing box 12 is equipped with multiple vibration components 17. The lower inner wall of the mixing box 12 is provided with discharge ports 14 on both sides. The two discharge ports 14 pass through the lower inner wall of the mixing box 12 and the upper end face of the discharge box 6 respectively, and are connected to the inner side of the discharge box 6. The mixing box 12 is provided with discharge structures 2 on both sides.

[0038] The discharge structure 2 includes a first geared servo motor 201, which is fixedly connected to one side wall of the discharge box 6. The output end of the first geared servo motor 201 passes through one side wall of the discharge box 6 and extends into the interior of the discharge box 6. A spiral conveying rod 202 is fixedly connected to the end of the first geared servo motor 201. The spiral blades of the spiral conveying rod 202 are provided with multiple protrusions 203. When the two first geared servo motors 201 are started, they drive the two spiral conveying rods 202 to rotate, thereby conveying the fertilizer that has entered the discharge box 6 to both sides. During the conveying process, the fertilizer is pressurized by the multiple protrusions 203. Through the geometric interference effect, the contact area with the fertilizer is increased, the adhesion between the fertilizer and the inner wall of the discharge box 6 is broken, the amount of fertilizer adhering to the inner wall of the discharge box 6 is reduced, the blockage rate is reduced, and the safety of use is improved.

[0039] The base 1 has four hubs 3 at the four opposite corners of its lower end face. The upper end face of the base 1 is fixedly connected to a pusher 4 near the center. The upper end face of the pusher 4 is fixedly connected to a programmable control box 5. The pusher 4 is used to push the base, and the programmable control box 5 is used for integrated control. This is a common technical means in existing control systems, and will not be elaborated on here.

[0040] Both raw material tanks 8 are equipped with top covers 16 on their upper surfaces, and both top covers 16 are equipped with feed hoppers 15 at the center of their upper surfaces, so that different fertilizers can be added through the two feed hoppers 15.

[0041] Discharge pipes 13 are provided on both sides of the lower end face of the discharge box 6, so that fertilizer can be discharged through the two discharge pipes 13 for fertilization.

[0042] Working principle: During use, fertilizer raw materials are fed into two raw material tanks 8 through two feed hoppers 15. Then, the programmable control box 5 controls the start of four semiconductor cooling chips 907 and four cooling fans 909. The cold and hot ends of the four semiconductor cooling chips 907 respectively cool and heat the eight heat dissipation fins 908. The four cooling fans 909 extract the air from the four heated heat dissipation fins 908, creating a negative pressure inside the four heat dissipation fins 908. Then, the air is extracted from the four U-shaped pipes 911 through four rotary joints 905, creating a negative pressure inside the four U-shaped pipes 911. Then, the air inside the four heat dissipation fins 908 after the temperature is reduced is drawn into the four U-shaped pipes 911 through another channel of the four rotary joints 905. Thus, the cold air cools the four crushing wheels 904. The heat generated during the crushing process is cooled by the cold air, so that no heat is generated during the crushing process, preventing the fertilizer raw materials from melting and causing blockage.

[0043] The fertilizer is weighed by a weight sensor 10. After weighing, the solenoid valve 11 is opened to allow the crushed fertilizer to enter the mixing box 12. It is then mixed by multiple vibration components 17 and discharged into the discharge box 6 through two discharge ports 14. The programmable control box 5 controls the start of two first-reduction servo motors 201, which drive two spiral conveyor rods 202 to rotate, thereby conveying the fertilizer into the discharge box 6 to both sides. During the conveying process, multiple protrusions 203 pressurize the fertilizer, increasing the contact area with the fertilizer through geometric interference effect, breaking the adhesion between the fertilizer and the inner wall of the discharge box 6, reducing the amount of fertilizer adhering to the inner wall of the discharge box 6, reducing the blockage rate, and improving the safety of use.

[0044] The programmable control box 5 also includes two temperature sensors, a signal receiver, a signal transmitter, a flow sensor, and a pressure sensor. The temperature sensors monitor the surface temperature of the crushing wheel 904 and the inlet and outlet airflow temperature of the heat sink 908 in real time, dynamically adjust the power of the semiconductor cooling chip 907, start and stop the cooling fan 909 and adjust its speed, the weight sensor 10 monitors the material level in the batching box 12 in real time, and the pressure sensor in the discharge box 6 detects the risk of blockage. The control signals are transmitted using pulse signals or wireless networks, which are common technical means in existing control systems and will not be described in detail here.

[0045] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A fertilizer applicator for corn planting, comprising a base (1), characterized in that: The base (1) has a discharge box (6) at the center of the upper end face, and a batching box (12) is provided at the center of the upper end face of the discharge box (6). A conveying hopper (7) is fixedly connected to the upper end face of the batching box (12). Solenoid valves (11) are fixedly connected to both sides of the upper end face of the conveying hopper (7). A weight sensor (10) is provided at the upper end of each of the two solenoid valves (11). A raw material tank (8) is provided at the upper end of each of the two weight sensors (10). A low-temperature crushing structure (9) is provided on one side wall of each of the two raw material tanks (8). The low-temperature crushing structure (9) includes a frame (901), which is fixedly connected to one side wall of the raw material tank (8). Two gears (903) are rotatably connected in a front-to-back arrangement inside the raw material tank (8). A second reduction motor (902) is provided on one side wall of the frame (901) near the gear (903). The output end of the second reduction motor (902) passes through the frame (901) and extends into the interior of the frame (901), and its end is fixedly connected to the gear (903) near the front. The other ends of both gears (903) sequentially pass through the inner wall of the frame (901) and the inner wall of the raw material tank (8) to the interior of the raw material tank (8). Both ends are fixedly connected to a crushing wheel (904). A U-shaped pipe (911) is provided at the end of each of the two crushing wheels (904) away from the second reduction motor (902). A rotary joint (905) is fixedly connected to the end of each of the two crushing wheels (904) on one side of the two U-shaped pipes (911). A heat insulation box (912) is fixedly connected to the fixed end of each of the two rotary joints (905). A semiconductor cooling chip (907) is provided inside each of the two heat insulation boxes (912). Heat dissipation fins (908) are provided on both sides of each of the two semiconductor cooling chips (907). A cooling fan (909) is provided on one side of each of the two heat dissipation fins (908).

2. The fertilization device for corn planting according to claim 1, characterized in that: Dustproof nets (910) are provided on the end face of each of the two heat insulation boxes (912) away from the two rotary joints (905). The input and output ends of the rotating ends of the two rotary joints (905) are respectively connected to the input and output ends of the two U-shaped pipes (911). The input and output ends of the fixed ends of the two rotary joints (905) pass through the two heat insulation boxes (912) and lead to one side of the four heat dissipation fins (908).

3. The fertilization device for corn planting according to claim 1, characterized in that: Each of the two rotary joints (905) has a bracket (906) fixedly sleeved on the outer side wall of the fixed end, and the two brackets (906) are respectively fixedly connected to the front and rear end faces of the raw material tank (8).

4. The fertilization device for corn planting according to claim 1, characterized in that: The mixing box (12) is equipped with multiple vibration components (17). The mixing box (12) has discharge ports (14) on both sides of the lower inner wall. The two discharge ports (14) pass through the lower inner wall of the mixing box (12) and the upper end face of the discharge box (6) to the inside of the discharge box (6) on both sides. The mixing box (12) is equipped with discharge structures (2) on both sides. The discharge structure (2) includes a first reduction servo motor (201), which is fixedly connected to one side wall of the discharge box (6). The output end of the first reduction servo motor (201) passes through one side wall of the discharge box (6) and extends into the interior of the discharge box (6). A spiral conveying rod (202) is fixedly connected to the end of the spiral conveying rod (202). Multiple protrusions (203) are provided on the spiral blades of the spiral conveying rod (202).

5. A fertilizer applicator for corn planting according to claim 1, characterized in that: The base (1) has four wheel hubs (3) at the four opposite corners of its lower end face. A pusher (4) is fixedly connected to the center of the upper end face of the base (1) near the front. A programmable control box (5) is fixedly connected to the upper end face of the pusher (4).

6. A fertilizer applicator for corn planting according to claim 1, characterized in that: Both of the raw material tanks (8) are provided with top covers (16) on their upper surfaces, and both top covers (16) are provided with feed hoppers (15) at the center of their upper surfaces.

7. A fertilizer applicator for corn planting according to claim 1, characterized in that: Discharge pipes (13) are provided on both sides of the lower end face of the discharge box (6).

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