Pine needle cutting and spraying equipment for improving soil acidity in citrus planting

Abstract

The pine needle cutting and spraying equipment for improving soil acidity for citrus planting comprises a tank body, a smashing device, a material throwing device and an adjusting device, firstly, pine needles are smashed through a hob in the cylindrical tank body, then smashed materials are thrown out along discharging ports distributed in the axial direction through arc-shaped blades on a material throwing shaft, and then the smashed materials are adjusted through the adjusting device. And uniform spraying of soil improvement substances is realized. The adjusting device can adjust the spraying angle and direction, the moving device enables the tank body to move in the field, and the operation range is enlarged. According to the whole device, the control unit coordinates all the units driven by the motor, automatic operation is achieved, the soil improvement efficiency is improved, labor input is reduced, and healthy growth of oranges can be promoted.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, and in particular to a pine needle cutting and spraying device for improving soil acidity in citrus planting. Background Technology

[0002] In citrus cultivation, improving soil acidity is crucial for enhancing soil fertility and promoting citrus growth. Pine needles, as a natural organic fertilizer, are widely used to improve soil acidity due to their rich organic matter and trace elements. However, current methods of processing and applying pine needles have several shortcomings. Farmers typically cut pine needles into smaller pieces manually for better decomposition and integration into the soil. This manual method is inefficient, time-consuming, and labor-intensive, resulting in uneven fertilization due to the inconsistent size and irregular shape of the cut needles, thus hindering soil fertility improvement. Furthermore, the lack of a specialized pine needle cutting and spraying device in current technology makes the fertilization process cumbersome and complex, and difficult to precisely control the amount and coverage of fertilizer. Farmers often have to manually scatter the cut pine needle fragments onto the soil, which is not only labor-intensive but also unreliable in terms of fertilization effectiveness. In addition, the uneven distribution of pine needle fragments in the soil can lead to uneven soil fertility distribution, affecting citrus growth and yield. Utility Model Content

[0003] In view of the above problems, this utility model provides a pine needle cutting and spraying device for improving soil acidity in citrus planting, so as to solve the problems of low pine needle processing efficiency, uneven fertilization and lack of special equipment in the prior art, and realize rapid cutting, uniform spraying and precise fertilization of pine needles.

[0004] To achieve the above objectives, this utility model provides a pine needle cutting and spraying device for improving soil acidity in citrus cultivation, comprising: a tank, a crushing device, a material throwing device, and an adjusting device; the tank is cylindrical with an internal cavity and a feed inlet at the top; the crushing device includes a roller cutter and a first drive unit; the roller cutter is rotatably connected to the tank and located below the feed inlet, and the first drive unit is connected to the tank and is drively connected to the roller cutter; the material throwing device includes a material throwing shaft, material throwing blades, and a second drive unit, the material throwing shaft is rotatably connected to the tank, and there are two or more material throwing blades connected to the material throwing shaft and distributed along the axial direction of the material throwing shaft; the tank has two or more sets of discharge outlets, the number of discharge outlets in each set being the same as the number of material throwing blades in the material throwing shaft. The number of material blades corresponds to the number of discharge ports in each group, which are distributed along the axial direction of the material throwing shaft and are positioned to correspond to the material blades. The first drive unit is located at the bottom of the tank, and the second drive unit is connected to the material throwing shaft. The adjustment device includes a bottom plate and baffles. There are two or more bottom plates, corresponding to the number of material throwing blades. The two or more bottom plates are slidably connected to the tank. The bottom plate has a notch to accommodate the material throwing shaft. The shape of the side of the bottom plate with the notch is adapted to the inner cavity of the tank. The side of the tank has an opening corresponding to the number of material throwing blades. The opening is distributed along the axial direction of the material throwing shaft and is used to accommodate the bottom plate. There are two or more baffles, corresponding to the number of material throwing blades. The baffles are arc-shaped and are slidably connected to the openings of the tank.

[0005] Unlike existing technologies, the pine needle cutting and spraying device for improving soil acidity in citrus cultivation provided by the above technical solution has a simple structure, is easy to operate and maintain, reduces the labor intensity of farmers, and improves work efficiency. In use, pine needles are first fed into the tank through the inlet. Then, the first drive unit is activated to rotate the roller blades, cutting the pine needles into smaller fragments to facilitate rapid decomposition and integration into the soil, thus improving soil fertility. Next, the second drive unit is activated to rotate the throwing shaft. The throwing blades then eject the cut pine needle fragments and spray them evenly into the soil through the outlet, avoiding the uneven fertilization problems caused by traditional manual application methods. Simultaneously, by adjusting the position of the base plate and baffle, the spray volume and direction of the pine needle fragments can be precisely controlled, achieving precise fertilization.

[0006] In some embodiments, the pine needle cutting spraying device for improving soil acidity in citrus cultivation also includes a moving device, which includes a support and drive wheels, with the tank connected to the support and the drive wheels connected to the bottom of the support.

[0007] In some embodiments, the adjustment device further includes a drive structure, which includes an adjustment bracket, a rack and a gear, and a third drive unit. The adjustment bracket is connected to the support of the tank or the moving device, the gear is connected to the adjustment bracket, the rack is connected to the base plate of the adjustment device, the gear and the rack are adapted to each other, and the third drive unit is connected to the adjustment bracket and is connected to the gear transmission. There are two or more drive structures, the number of which corresponds to the number of material throwing blades, and each drive structure corresponds to a base plate.

[0008] In some embodiments, the adjusting device includes a baffle with an inclined surface on the side away from the tank body.

[0009] In some embodiments, the mobile device further includes a fourth drive unit connected to the bracket and driven by a drive wheel.

[0010] In some embodiments, the pine needle cutting and spraying device for improving soil acidity in citrus planting also includes a control unit, which is communicatively connected to the first drive unit, the second drive unit, the third drive unit, and the fourth drive unit, respectively.

[0011] In some embodiments, the first drive unit, the second drive unit, the third drive unit, and the fourth drive unit are motor drive modules.

[0012] In some embodiments, the material-throwing blades are arc-shaped.

[0013] In some embodiments, the crushing device has two sets, with two roller cutters arranged alternately and two second drive units arranged on both sides of the material cylinder.

[0014] Unlike existing technologies, the above technical solution has the following beneficial effects:

[0015] This utility model provides a pine needle cutting and spraying device for improving soil acidity in citrus cultivation. It integrates multiple functional modules, including a tank, a crushing device, a material-throwing device, and an adjusting device, achieving rapid cutting, uniform spraying, and precise fertilization of pine needles. The tank has a cylindrical structure and incorporates a crushing device with a built-in roller cutter and a first drive unit, which rapidly cuts the pine needles into fine particles. The material-throwing device utilizes a throwing shaft, throwing blades, and a second drive unit to propel the crushed pine needle material at high speed to the target area, ensuring uniform fertilization. The adjusting device's base plate and baffles precisely control the spray volume and direction, achieving an intelligent fertilization process. Overall, the device has a simple structure, is easy to operate, significantly reduces the user's labor intensity, and improves operational efficiency.

[0016] By incorporating a mobile device, this equipment can remain stable under various terrain conditions, improving its adaptability and flexibility. The mobile device is powered by drive wheels connected to the support frame, ensuring rapid movement between planting areas and thus improving overall fertilization efficiency. Simultaneously, the adjustable device features a height-adjustable design, allowing precise control of the material-dispersing blades and meticulous adjustment of the material dispersion effect, further optimizing the spraying result.

[0017] Furthermore, this device employs a motor-driven module design, providing robust and stable power support for each functional module, thus enhancing the device's reliability and durability. Simultaneously, the device is equipped with a centralized control unit, enabling intelligent management of various device parameters, further simplifying the operation process and improving efficiency.

[0018] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0019] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0020] Figure 1 This is a cross-sectional view of the pine needle cutting and spraying device for improving soil acidity in citrus planting, as described in the specific embodiment.

[0021] Figure 2 Figure 1 A magnified view of a section at point A in the middle;

[0022] Figure 3 This is a side view of the pine needle cutting and spraying device for improving soil acidity in citrus planting, as described in the specific embodiment.

[0023] Figure 4 This is a schematic diagram of the adjustment device of the pine needle cutting and spraying device for improving soil acidity in citrus planting, as described in a specific embodiment.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10. Tank body; 11. Inlet; 12. Outlet; 13. Opening;

[0026] 21. Hob; 22. First drive unit;

[0027] 31. Material throwing shaft; 32. Material throwing blades; 33. Second drive unit;

[0028] 41. Base plate; 4101. Notch; 42. Baffle; 43. Rack; 44. Gear; 45. Adjustment bracket;

[0029] 51. Bracket; 52. Drive wheel. Detailed Implementation

[0030] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0031] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0032] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0033] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0034] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0035] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0036] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application 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. Therefore, they should not be construed as limitations on the embodiments of this application.

[0037] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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 or an electrical 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. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0038] Please see Figures 1 to 4This embodiment provides a pine needle cutting and spraying device for improving soil acidity in citrus cultivation, comprising: a tank 10, a crushing device, a material throwing device, and an adjusting device; the tank 10 is cylindrical with an internal cavity and a feed inlet 11 at the top; the crushing device includes a roller cutter 21 and a first drive unit 22; the roller cutter 21 is rotatably connected to the tank 10 and located below the feed inlet 11, and the first drive unit 22 is connected to the tank 10 and is drively connected to the roller cutter 21; the material throwing device includes a material throwing shaft 31, material throwing blades 32, and a second drive unit 33, the material throwing shaft 31 is rotatably connected inside the tank 10, there are two or more material throwing blades 32, the two or more material throwing blades 32 are connected to the material throwing shaft 31 and distributed along the axial direction of the material throwing shaft 31, the tank 10 is provided with two or more sets of discharge ports 12, the number of each set of discharge ports 12 corresponds to the number of material throwing blades 32, and each set of discharge ports 12... The material inlet 12 is distributed along the axial direction of the material throwing shaft 31, and its position corresponds to the material blades. The first drive unit 22 is set at the bottom of the tank body 10, and the second drive unit 33 is connected to the material throwing shaft 31 for transmission. The adjustment device includes a bottom plate 41 and a baffle 42. There are two or more bottom plates 41, and the number corresponds to the number of material throwing blades 32. The two or more bottom plates 41 are slidably connected to the tank body 10. The bottom plate 41 is provided with a notch 4101 to accommodate the material throwing shaft 31. The shape of the side of the bottom plate 41 with the notch 4101 is adapted to the inner cavity of the tank body 10. The side of the tank body 10 is provided with an opening 13 corresponding to the number of material throwing blades 32. The position of the opening 13 is distributed along the axial direction of the material throwing shaft 31. The opening 13 is used to accommodate the bottom plate 41 to pass through. There are two or more baffles 42, and the number corresponds to the number of material throwing blades 32. The baffles 42 are arc-shaped and are slidably connected to the openings 13 of the tank body 10.

[0039] In this embodiment, the pine needle cutting and spraying device for improving soil acidity in citrus cultivation integrates multiple structures such as a tank 10, a crushing device, a material throwing device, and an adjusting device, aiming to achieve rapid cutting, uniform spraying, and precise fertilization of pine needles. Specifically, the tank 10 has a cylindrical structure with an internal cavity for holding pine needles. An inlet 11 is located at the top, with the diameter of the end of the inlet 11 near the tank 10 smaller than the diameter of the end away from the tank 10, forming a funnel shape to collect pine needles into the tank 10 for cutting. The crushing device includes a roller cutter 21 and a first drive unit 22. Preferably, the roller cutter 21 is made of high-strength alloy and is rotatably connected to the tank 10, located below the inlet 11. When pine needles are fed into the tank through the inlet 11, the first drive unit 22 drives the roller cutter 21 to rotate at high speed, cutting the pine needles into smaller fragments. Simultaneously, the inner wall of the tank 10 is provided with a wear-resistant layer to extend the service life of the tank 10.

[0040] The material-throwing device includes a material-throwing shaft 31, material-throwing blades 32, and a second drive unit 33. The material-throwing shaft 31 is rotatably connected inside the tank 10. Preferably, the surface of the material-throwing shaft 31 is polished to reduce frictional resistance with the pine needle fragments. The material-throwing blades 32 are made of lightweight, high-strength material and are connected to the material-throwing shaft 31 and evenly distributed along its axial direction to form multiple material-throwing units. When the second drive unit 33 drives the material-throwing shaft 31 to rotate, the material-throwing blades 32, under the action of centrifugal force, throw out the cut pine needle fragments and evenly spray them into the soil through the discharge port 12 provided on the tank 10.

[0041] The adjusting device includes a base plate 41 and a baffle 42. Preferably, the base plate 41 is made of high-strength steel plate and is slidably connected to the tank body 10. The base plate 41 has a notch 4101 for accommodating the passage of the throwing shaft 31 and is slidably adjusted through the opening 13 on the side of the tank body 10. By adjusting the position of the base plate 41, the size and position of the discharge port 12 can be controlled, thereby adjusting the spraying amount and direction of the pine needle fragments. The baffle 42 can be made of corrosion-resistant material. The baffle 42 is slidably connected to the opening 13 of the tank body 10. By adjusting the position of the baffle 42, the spraying range of the pine needle fragments can be further controlled, preventing it from being sprayed into non-target areas.

[0042] The pine needle cutting and spraying device for improving soil acidity in citrus cultivation provided in this embodiment has a simple structure, is easy to operate and maintain, reducing the labor intensity of farmers and improving work efficiency. In use, pine needles are first fed into the tank 10 through the inlet 11. Then, the first drive unit 22 is activated to drive the roller cutter 21 to rotate, cutting the pine needles into smaller fragments to facilitate rapid decomposition and integration into the soil, thus improving soil fertility. Next, the second drive unit 33 is activated to drive the throwing shaft 31 to rotate. The throwing blades 32 throw out the cut pine needle fragments and spray them evenly into the soil through the outlet 12, avoiding the uneven fertilization problem caused by traditional manual application. Simultaneously, by adjusting the positions of the base plate 41 and the baffle 42, the spraying volume and direction of the pine needle fragments can be precisely controlled, achieving precise fertilization.

[0043] Please see Figures 1 to 4 In some embodiments, the pine needle cutting spraying device for improving soil acidity in citrus planting also includes a moving device, which includes a support 51 and a drive wheel 52. The tank 10 is connected to the support 51, and the drive wheel 52 is connected to the bottom of the support 51.

[0044] In this embodiment, the pine needle cutting and spraying device for improving soil acidity in citrus cultivation is equipped with a mobile device to ensure the stability and flexibility of the device under different terrain conditions. The mobile device mainly consists of a support frame 51 and drive wheels 52. Preferably, the support frame 51 is made of high-strength steel, which has good load-bearing capacity and deformation resistance, ensuring that the support frame 51 maintains a stable shape when bearing the weight of the device and various forces during operation, preventing the device from shaking or tilting. The tank 10 is fixed to the support frame 51 by welding or bolting to ensure that it will not shake or fall off during movement.

[0045] The drive wheels 52 are connected to the bottom of the support 51. Specifically, the drive wheels 52 are made of wear-resistant rubber, providing good grip and shock absorption, and offering stable traction and support under various terrain conditions. The number and layout of the drive wheels 52 can be set according to actual needs, including at least two front wheels close to the tank 10 and two rear wheels away from the tank 10 to ensure the stability and balance of the device during movement. Furthermore, the drive wheels 52 are equipped with a braking device to allow for quick stopping when needed, preventing the device from slipping or losing control. This improves the mobility and adaptability of the device, enabling rapid transfer and operation in different planting areas, thereby improving fertilization efficiency and quality.

[0046] This embodiment, by adding a mobile device, enables the pine needle cutting and spraying device to be easily moved across different citrus planting areas, greatly improving the flexibility and efficiency of fertilization. The mobile device ensures the stability and safety of the device during movement, reduces operational risks, and enhances its adaptability, allowing it to operate in various terrain conditions and further expanding its application range.

[0047] Please see Figures 1 to 4 In some embodiments, the adjustment device further includes a drive structure, which includes an adjustment bracket 45, a rack 43, a gear 44, and a third drive unit. The adjustment bracket 45 is connected to the tank 10 or the support 51 of the moving device. The gear 44 is connected to the adjustment bracket 45. The rack 43 is connected to the base plate 41 of the adjustment device. The gear 44 and the rack 43 are adapted to each other. The third drive unit is connected to the adjustment bracket 45 and is connected to the gear 44 in a transmission connection. There are two or more drive structures, the number of which corresponds to the number of throwing blades 32. Each drive structure corresponds to one base plate 41.

[0048] In this embodiment, the adjusting bracket 45 serves as a support base, directly connected to the tank 10 or the bracket 51 of the moving device, ensuring the stability and reliability of the entire adjusting system. A gear 44 is mounted on the adjusting bracket 45 and meshes with a specially designed rack 43, which is securely connected to the base plate 41 of each adjusting device. When the gear 44 rotates under the drive of the third drive unit, its rotational motion is converted into linear movement of the rack 43 and the base plate 41, thereby driving the material-throwing blades 32 to adjust their position. It is worth noting that there are two or more drive structures, each corresponding to one of the material-throwing blades 32. Each material-throwing blade 32 has an independent drive structure, allowing the position of each blade to be adjusted independently, achieving precise control over the material dispersion effect. The third drive unit, as a power source, works closely with the gear 44 through a transmission connection, providing a stable driving force for the movement of the base plate 41. When the position of the throwing blade 32 needs to be adjusted, the third drive unit is activated, driving the gear 44 to rotate, which in turn drives the rack 43 and the base plate 41 to slide along the preset track, thereby achieving precise adjustment of the position of the throwing blade 32.

[0049] The pine needle cutting and spraying device for improving soil acidity in citrus cultivation provided in this embodiment not only simplifies the complexity of the adjustment device and reduces maintenance costs, but also significantly improves the reliability and stability of the system. By controlling the position of the material-dispersing blades 32, the material dispersion effect can be precisely controlled, improving dispersion efficiency and uniformity. At the same time, it is easy to make flexible adjustments according to actual needs, enhancing the adaptability and flexibility of the equipment, and providing a more efficient and precise fertilization solution for soil improvement in citrus cultivation.

[0050] Please see Figures 1 to 4 In some embodiments, the adjusting device includes a baffle 42 with an inclined surface on the side away from the tank body 10.

[0051] In this embodiment, by providing a slope at the edge of the baffle 42, the pushing and pulling of the baffle 42 can be made smoother. Specifically, the rack 43 can easily move to the slope of the baffle 42 to lift or lower the baffle 42, thereby adjusting the position or angle of the pine needle spray and improving the adjustment efficiency.

[0052] Please see Figures 1 to 4 In some embodiments, the mobile device further includes a fourth drive unit connected to the bracket 51 and driven by the drive wheel 52.

[0053] In this embodiment, the fourth drive unit is connected to the bracket 51 and is connected to the drive wheel 52 for transmission. This facilitates more precise control of the device's speed and direction, further enhancing the mobility and flexibility of the spraying device. For example, when slow movement and fine spraying are required, the output of the fourth drive unit can be adjusted to make the drive wheel 52 rotate at a slower speed, ensuring the stability and accuracy of the spraying process. When moving quickly on flat ground, the output of the fourth drive unit can be increased to improve the device's movement efficiency, greatly enhancing the adaptability and operability of the spraying device in complex terrain.

[0054] Please see Figures 1 to 4 In some embodiments, the pine needle cutting and spraying device for improving soil acidity in citrus planting also includes a control unit, which is communicatively connected to the first drive unit 22, the second drive unit 33, the third drive unit, and the fourth drive unit, respectively.

[0055] In this embodiment, the control unit establishes a communication connection with each drive unit in the device, including the first drive unit 22, the second drive unit 33, the third drive unit, and the fourth drive unit. Through centralized control, the entire spraying device can be intelligently operated. During use, the control unit alone can manage and coordinate the various functional modules of the device, flexibly adjusting parameters to meet different spraying needs. For example, the rotation speed of the crushing device, the working status of the throwing device, or the travel speed and direction of the moving device can be adjusted according to the needs of the spraying operation. Simultaneously, the control unit can monitor the operating status of each drive unit, promptly detect abnormalities, and respond to ensure the safety and reliability of the spraying process. This integrated control greatly simplifies the operation process and improves the overall efficiency of the device.

[0056] Please see Figures 1 to 4 In some embodiments, the first drive unit 22, the second drive unit 33, the third drive unit, and the fourth drive unit are motor drive modules.

[0057] In this embodiment, the various drive units employed in the pine needle cutting and spraying device for improving soil acidity in citrus cultivation, including the first drive unit 22, the second drive unit 33, the third drive unit, and the fourth drive unit, all adopt the form of motor drive modules. Compared to a single motor, the motor drive module integrates core components such as the motor and motor controller, enabling it to output more precise and stable driving force. The crushing device, material throwing device, adjusting device, and moving device in the device can all achieve efficient and reliable operation with the help of these motor drive modules. At the same time, this modular design greatly simplifies the structure and maintenance of the device, and improves the overall reliability of the system.

[0058] Please see Figures 1 to 4In some embodiments, the material-throwing blade 32 is arc-shaped.

[0059] In this embodiment, compared to straight blades, curved blades can more smoothly propel pine needle particles during spraying, further improving the spraying effect of this pine needle cutting and spraying device for improving soil acidity in citrus cultivation. Specifically, driven by the rapid rotation of the throwing shaft 31, the curved blades throw the pine needle material in all directions, forming a more uniform spray distribution. This optimized spray trajectory ensures that the pine needle material achieves wider and more uniform coverage upon landing, improving fertilization efficiency. Simultaneously, the curved blade design also reduces airflow turbulence, lowering energy consumption during spraying.

[0060] Please see Figures 1 to 4 In some embodiments, the crushing device is provided with two sets, with two roller cutters 21 arranged alternately and two second drive units 33 arranged on both sides of the material cylinder.

[0061] In this embodiment, each of the two crushing devices includes a roller cutter 21 and a second drive unit 33. The two roller cutters 21 are arranged alternately inside the feed cylinder, while the two second drive units 33 are located on opposite sides of the feed cylinder. This dual crushing structure aims to improve the cutting effect of pine needles. When pine needles enter the device through the feed cylinder, they first encounter the cutting action of one set of roller cutters 21 and drive units, which initially crushes them. They are then sent to another set of roller cutters 21 and drive units for further crushing. This "double-blade" cutting mechanism not only ensures that the pine needles are thoroughly crushed but also reduces the load on a single roller cutter 21, extending its service life. At the same time, the arrangement of the two drive units also achieves a balanced distribution of power, ensuring the stability and efficiency of the entire crushing process.

[0062] Through the above technical solutions, this utility model has the following beneficial effects compared with the prior art:

[0063] This utility model provides a pine needle cutting and spraying device for improving soil acidity in citrus cultivation. It integrates multiple functional modules, including a tank 10, a crushing device, a material-throwing device, and an adjusting device, achieving rapid cutting, uniform spraying, and precise fertilization of pine needles. The tank 10 has a cylindrical structure and incorporates a crushing device with a built-in roller cutter 21 and a first drive unit 22, which can quickly cut pine needles into fine particles. The material-throwing device utilizes a throwing shaft 31, throwing blades 32, and a second drive unit 33 to throw the crushed pine needle material at high speed onto the target area, ensuring uniform fertilization. The adjusting device's base plate 41 and baffle 42 can precisely control the spray volume and direction, achieving an intelligent fertilization process. Overall, the device has a simple structure, is easy to operate, significantly reduces the user's labor intensity, and improves work efficiency.

[0064] By incorporating a mobile device, this equipment can remain stable under various terrain conditions, improving its adaptability and flexibility. The mobile device is powered by drive wheels 52 connected to the support frame 51, ensuring rapid movement between planting areas and thus improving overall fertilization efficiency. Simultaneously, the adjustment device features a height-adjustable design, allowing precise control of the position of the material-dispersing blades 32 and meticulous adjustment of the material dispersion effect, further optimizing the spraying result.

[0065] Furthermore, this device employs a motor-driven module design, providing robust and stable power support for each functional module, thus enhancing the device's reliability and durability. Simultaneously, the device is equipped with a centralized control unit, enabling intelligent management of various device parameters, further simplifying the operation process and improving efficiency.

[0066] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A pine needle cutting and spraying device for improving soil acidity in citrus cultivation, characterized in that, include: Tank body, crushing device, material throwing device, regulating device; The tank is cylindrical with an internal cavity and a feed inlet at the top. The crushing device includes a roller cutter and a first drive unit; the roller cutter is rotatably connected to the tank body and located below the feed inlet, and the first drive unit is linked to the tank body and is connected to the roller cutter via transmission. The material throwing device includes a material throwing shaft, material throwing blades, and a second drive unit. The material throwing shaft is rotatably connected to the tank body. There are two or more material throwing blades connected to the material throwing shaft and distributed along the axial direction of the material throwing shaft. The tank body is provided with two or more sets of discharge ports. The number of discharge ports in each set corresponds to the number of material throwing blades. Each set of discharge ports is distributed along the axial direction of the material throwing shaft and its position corresponds to the material throwing blades. The first drive unit is located at the bottom of the tank body, and the second drive unit is connected to the material throwing shaft for transmission. The adjusting device includes a base plate and baffles. There are two or more base plates, the number of which corresponds to the number of material-throwing blades. The two or more base plates are slidably connected to the tank body. The base plates are provided with notches to accommodate the material-throwing shaft. The shape of the side of the base plate with the notch is adapted to the inner cavity of the tank. The side of the tank body is provided with openings corresponding to the number of material-throwing blades. The openings are distributed along the axial direction of the material-throwing shaft and are used to accommodate the base plates. There are two or more baffles, the number of which corresponds to the number of material-throwing blades. The baffles are arc-shaped and are slidably connected to the openings of the tank body.

2. The pine needle cutting and spraying equipment for improving soil acidity in citrus planting according to claim 1, characterized in that, It also includes a mobile device, which includes a support and a drive wheel, with the tank body connected to the support and the drive wheel connected to the bottom of the support.

3. The pine needle cutting and spraying equipment for improving soil acidity in citrus planting according to claim 2, characterized in that, The adjustment device further includes a drive structure, which includes an adjustment bracket, a rack and a gear, and a third drive unit. The adjustment bracket is connected to the tank or the support of the moving device. The gear is connected to the adjustment bracket. The rack is connected to the base plate of the adjustment device. The gear and the rack are adapted to each other. The third drive unit is connected to the adjustment bracket and is connected to the gear transmission. There are two or more drive structures, the number of which corresponds to the number of throwing blades. Each drive structure corresponds to one base plate.

4. The pine needle cutting and spraying equipment for improving soil acidity in citrus planting according to claim 3, characterized in that, The regulating device includes a baffle with an inclined surface on the side away from the tank body.

5. The pine needle cutting and spraying equipment for improving soil acidity in citrus planting according to claim 3, characterized in that, The mobile device also includes a fourth drive unit, which is connected to the bracket and is connected to the drive wheel via a transmission.

6. The pine needle cutting and spraying device for improving soil acidity in citrus planting according to claim 5, characterized in that, The pine needle cutting and spraying device for improving soil acidity in citrus planting also includes a control unit, which is communicatively connected to the first drive unit, the second drive unit, the third drive unit, and the fourth drive unit.

7. The pine needle cutting and spraying device for improving soil acidity in citrus planting according to claim 5, characterized in that, The first drive unit, the second drive unit, the third drive unit, and the fourth drive unit are motor drive modules.

8. The pine needle cutting and spraying equipment for improving soil acidity in citrus planting according to claim 1, characterized in that, The material-throwing blades are arc-shaped.

9. The pine needle cutting and spraying device for improving soil acidity in citrus planting according to claim 1, characterized in that, The crushing device is provided in two sets, with two roller cutters arranged alternately and two second drive units arranged on both sides of the material cylinder.

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