Adjustable quantitative centralized discharging type multi-row fertilizer discharger

Abstract

The utility model relates to the technical field of agricultural fertilizing machinery, in particular to an adjustable quantitative centralized discharging type multi-row fertilizer discharger which comprises an upper shell, a lower shell and a centrifugal turntable, the upper shell and the lower shell are fixedly connected, a cavity is reserved between the upper shell and the lower shell, and the plurality of fertilizer discharging pipes are annularly communicated around the cavity at equal intervals; the rotating shaft drives the centrifugal turntable to rotate in the cavity, and the bottom end of the rotating shaft is connected with the driving device; after entering the cavity from the feeding hole, the fertilizer uniformly enters the plurality of fertilizer discharging pipes through the rotating centrifugal turntable and then is discharged; and an arch head is arranged at the top of the rotating shaft and comprises a movable column, and the movable column can ascend and descend depending on rotation of the rotating shaft. When fertilizer needs to be applied, the direct-current motor is started to drive the rotating shaft, the centrifugal rotating disc and the spiral blade, and meanwhile the movable column can be driven to ascend and descend in a reciprocating mode in the rotating process of the rotating shaft, so that blockage caused by accumulation of fertilizer in the fertilizer box and the feed port is avoided.

Description

Technical Field

[0001] This utility model relates to the field of agricultural fertilization machinery technology, specifically an adjustable quantitative multi-row fertilizer applicator. Background Technology

[0002] Fertilization is crucial for the safety, stability, and development of agricultural production. The rapid development of global agriculture, besides relying on advancements in biotechnology and the expansion of arable and irrigated areas, has largely been achieved through the massive input of chemical fertilizers, pesticides, and mineral energy. As the world's largest agricultural producer, China has long faced problems such as low fertilizer application efficiency, resource waste, and environmental pollution. Traditional fertilization methods commonly suffer from uneven manual application and poor adaptability of mechanical fertilization devices, leading to either excessive or insufficient fertilization in certain areas. Excessive fertilization can cause soil acidification and compaction, excessive nitrate levels in groundwater, and increased greenhouse gas emissions, while uneven fertilization results in inconsistent crop growth and fluctuating yields, directly impacting food security and farmers' income. With the development of large-scale agriculture and the advancement of "dual carbon" goals, existing centrifugal and external trough wheel-type fertilizer applicators have revealed their susceptibility to clogging, making it difficult to meet the precision agronomic needs of rice side-deep fertilization and corn stratified fertilization. Utility Model Content

[0003] The purpose of this invention is to provide an adjustable quantitative multi-row fertilizer dispenser to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] An adjustable quantitative multi-row fertilizer dispenser includes an upper shell, a lower shell, and a centrifugal disc;

[0006] The upper and lower shells are fixedly connected, with a cavity between them. Several rows of pipes are connected in a ring at equal intervals around the cavity.

[0007] The top of the upper housing is fixedly connected to a feed inlet;

[0008] The rotating shaft drives the centrifugal disc to rotate inside the cavity, and the bottom end of the rotating shaft is connected to the drive device;

[0009] After the fertilizer enters the cavity through the feed inlet, it is evenly distributed into several rows of fertilizer pipes by a rotating centrifugal disc before being discharged.

[0010] An arch head is provided at the top of the rotating shaft. The arch head includes a movable column, which can be raised and lowered by the rotation of the rotating shaft.

[0011] Preferably, the movable column is matched with the rotating shaft for axial limiting displacement.

[0012] The arch head also includes a fixed slider that is fixedly connected to the feed inlet;

[0013] An undulating guide groove is provided on the outer circumference of the movable column, and one end of the fixed slider is slidably connected to the inside of the undulating guide groove.

[0014] Preferably, the arch head also includes a fixed column that is coaxially fixedly connected to the rotating shaft, and a limit groove is provided on the side of the fixed column;

[0015] A limit slider is fixedly connected to the movable column, and the limit slider is slidably connected to the limit groove.

[0016] Preferably, a top cone is fixed at the top of the movable column.

[0017] Preferably, a sleeve is fitted and fixed to the bottom of the movable column, and the sleeve is fitted on the outside of the fixed column.

[0018] Preferably, a fixing rod is fixed to the other end of the fixing slider, and both ends of the fixing rod are fixedly connected to the inner surface of the feed port.

[0019] Preferably, a feed pipe is fixedly connected between the bottom end of the feed inlet and the top of the upper housing, and a spiral blade is provided on the part of the rotating shaft located inside the feed pipe.

[0020] Preferably, the centrifugal turntable includes a maximum speed descent disc and several centrifugal push plates fixed on the upper surface of the maximum speed descent disc.

[0021] Preferably, both the upper and lower housings are fixed with mounting ears, and the mounting ears are provided with through holes.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] When fertilization is required, this invention starts a DC motor to drive a rotating shaft, a centrifugal turntable, and spiral blades. Simultaneously, during the rotation of the rotating shaft, the movable column can be driven to reciprocate up and down to prevent fertilizer from accumulating inside the fertilizer tank and feed inlet, causing blockages. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0025] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0026] Figure 3 This is a partial structural schematic diagram of the present invention;

[0027] Figure 4 This is a schematic diagram of the centrifugal turntable of this utility model;

[0028] Figure 5This is a schematic diagram of the structure of the arch head of this utility model;

[0029] Figure 6 This is a partial structural schematic diagram of the arch head of this utility model;

[0030] Figure 7 This is a partial front view structural diagram of the arch head of this utility model.

[0031] In the diagram: 1. Upper shell; 11. Feed pipe; 2. Lower shell; 3. Centrifugal turntable; 31. Fastest descent disc; 32. Centrifugal push plate; 4. Feed inlet; 5. Discharge pipe; 6. Rotating shaft; 7. Arch head; 71. Fixed column; 711. Limiting groove; 72. Movable column; 721. Undulating guide groove; 73. Top cone; 74. Sleeve; 75. Fixed rod; 76. Fixed slider; 77. Limiting slider; 8. Spiral blade; 9. Mounting lug; 91. Through hole. 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] Please see Figures 1-7 This utility model provides a technical solution:

[0034] An adjustable quantitative multi-row fertilizer applicator includes an upper housing 1, a lower housing 2, and a centrifugal disc 3. A rotating shaft 6 is threaded through the center of each of the upper housing 1, lower housing 2, and centrifugal disc 3. The centrifugal disc 3 and the rotating shaft 6 are fixedly connected, for example, the centrifugal disc 3 and the rotating shaft 6 are threaded together, allowing the rotating shaft 6 to drive the centrifugal disc 3 to rotate. In this embodiment, the bottom end of the rotating shaft 6 is connected to a motor. In the following embodiments, the rotating shaft 6 is driven by a 12V DC motor, which can be powered by a traction device (e.g., a tractor battery), and the rotation speed of the disc is controlled by a speed regulator. The upper housing 1, lower housing 2, and rotating shaft 6 are rotatably connected; for example, the lower housing 2 is rotatably connected to the rotating shaft 6 via a deep groove ball bearing.

[0035] The upper shell 1 and the lower shell 2 are fixedly connected, and a cavity is left between them. Several rows of pipes 5 are connected in a ring at equal intervals around the cavity. Specifically, both the upper shell 1 and the lower shell 2 are fixed with mounting ears 9. The mounting ears 9 are provided with through holes 91, as shown in the figure. There are four mounting ears 9 on both the upper shell 1 and the lower shell 2, and they are evenly fixed around the upper shell 1 and the lower shell 2. In actual installation, the corresponding two mounting ears 9 are fixedly connected by bolts or other fasteners.

[0036] The top of the upper shell 1 is fixedly connected to the feed inlet 4; the feed inlet 4 can be fixedly connected to the fertilizer tank by bolts or other fasteners, so that the fertilizer inside the fertilizer tank can fall into the feed inlet 4; furthermore, the bottom end of the feed inlet 4 is fixedly connected to the top of the upper shell 1 by a discharge pipe 11, and the part of the rotating shaft 6 located inside the discharge pipe 11 is provided with a spiral blade 8. The spiral blade 8 is used to spirally roll the fertilizer at the bottom of the feed inlet 4 into the cavity, that is, the top of the centrifugal turntable 3, and then the fertilizer is evenly discharged through several rows of fertilizer pipes 5 by gravity and the centrifugal force generated when the centrifugal turntable 3 rotates.

[0037] The rotating shaft 6 drives the centrifugal disc 3 to rotate inside the cavity, and the bottom end of the rotating shaft 6 is connected to the drive device, which is the aforementioned DC motor. After the fertilizer enters the cavity through the feed inlet 4, it is evenly fed into several rows of fertilizer pipes 5 by the rotating centrifugal disc 3 before being discharged.

[0038] The top of the rotating shaft 6 is provided with an arch head 7, which includes a movable column 72 that can be raised and lowered by the rotation of the rotating shaft 6.

[0039] The working principle of the above technical solution is as follows: the top of the feed inlet 4 is fixedly connected to the bottom discharge port of the fertilizer tank using fasteners. When fertilization is required, the DC motor is started to drive the rotating shaft 6, the centrifugal turntable 3, and the spiral blades 8. At the same time, during the rotation of the rotating shaft 6, the movable column 72 can be driven to reciprocate and rise and fall to avoid fertilizer accumulation inside the fertilizer tank and the feed inlet 4. Then, the fertilizer falls into the top of the centrifugal turntable 3 through the spiral blades 8. After being subjected to the centrifugal force generated by the rotation of the centrifugal turntable 3, it is evenly discharged through several fertilizer pipes 5 to realize the fertilization operation. In this embodiment, eight fertilizer pipes 5 are provided.

[0040] The structure and principle of the movable column 72 for raising and lowering are as follows:

[0041] The movable column 72 is axially limited and displaced in conjunction with the rotating shaft 6; the arch head 7 also includes a fixed slider 76 fixedly connected to the feed inlet 4; an undulating guide groove 721 is provided on the outer circumferential surface of the movable column 72, the structure of which is as follows: Figure 6 and Figure 7As shown, one end of the fixed slider 76 is slidably connected inside the undulating guide groove 721; the other end of the fixed slider 76 is fixed with a fixing rod 75, both ends of which are fixedly connected to the inner surface of the feed inlet 4. The fixing rod 75 is used to achieve a fixed connection between the fixed slider 76 and the feed inlet 4. Furthermore, through the undulating guide groove 721, the rising and falling of the movable column 72 can be directly controlled by the fixed slider 76, which can achieve stable rising and falling of the movable column 72 without the need for additional structures.

[0042] The top of the movable column 72 is fixed with a top cone 73. The function of the top cone 73 is to easily pierce the accumulated fertilizer and reduce the resistance encountered when the movable column 72 moves upward.

[0043] The way in which the movable column 72 and the rotating shaft 6 achieve axial limiting displacement is as follows: the arch head 7 also includes a fixed column 71 that is coaxially and fixedly connected to the rotating shaft 6. The side of the fixed column 71 is provided with a limiting groove 711, as shown in the figure. There are three limiting grooves 711. A limiting slider 77 is fixedly connected to the movable column 72. The limiting slider 77 is slidably connected to the limiting groove 711.

[0044] The working principle of the above scheme is as follows: Due to the cooperation between the three limiting sliders 77 and the three limiting grooves 711, the rotating shaft 6 can drive the fixed column 71 to rotate, which in turn drives the movable column 72 to rotate. At this time, the fixed slider 76 is fixedly connected to the feed port 4 through the fixed rod 75, so that the fixed slider 76 remains in a fixed position. Therefore, during the process of the fixed slider 76 sliding inside the undulating guide groove 721, it can drive the movable column 72 and the top cone 73 to move up and down together, thereby performing intermittent arching and breaking operations on the accumulated fertilizer, which can prevent the fertilizer from accumulating and blocking.

[0045] Furthermore, a sleeve 74 is fixedly fitted to the bottom of the movable column 72. The sleeve 74 is fitted on the outside of the fixed column 71. In this embodiment, when the movable column 72 moves to the highest position, the sleeve 74 remains in the state of covering the entire limiting groove 711.

[0046] The centrifugal turntable 3 includes a fastest descending wire disc 31 and several centrifugal push plates 32 fixed on the upper surface of the fastest descending wire disc 31. In this embodiment, the number of centrifugal push plates 32 is the same as the number of fertilizer discharge pipes 5 and they correspond one-to-one. A fertilizer cavity is formed between two adjacent centrifugal push plates 32. The eight centrifugal push plates 32 form a total of eight fertilizer cavities, which are respectively connected to eight fertilizer discharge pipes 5.

[0047] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable quantitative multi-row fertilizer dispenser, characterized in that, Includes an upper shell, a lower shell, and a centrifugal disc; The upper and lower shells are fixedly connected, with a cavity between them. Several rows of pipes are connected in a ring at equal intervals around the cavity. The top of the upper housing is fixedly connected to a feed inlet; The rotating shaft drives the centrifugal disc to rotate inside the cavity, and the bottom end of the rotating shaft is connected to the drive device; After the fertilizer enters the cavity through the feed inlet, it is evenly distributed into several rows of fertilizer pipes by a rotating centrifugal disc before being discharged. An arch head is provided at the top of the rotating shaft. The arch head includes a movable column, which can be raised and lowered by the rotation of the rotating shaft.

2. The adjustable quantitative multi-row fertilizer dispenser according to claim 1, characterized in that, The movable column and the rotating shaft are fitted with axial limiting displacement. The arch head also includes a fixed slider that is fixedly connected to the feed inlet; An undulating guide groove is provided on the outer circumference of the movable column, and one end of the fixed slider is slidably connected to the inside of the undulating guide groove.

3. The adjustable quantitative multi-row fertilizer dispenser according to claim 2, characterized in that, The arch head also includes a fixed column that is coaxially fixedly connected to the rotating shaft, and a limit groove is provided on the side of the fixed column; A limit slider is fixedly connected to the movable column, and the limit slider is slidably connected to the limit groove.

4. The adjustable quantitative multi-row fertilizer dispenser according to claim 1, characterized in that, A top cone is fixed at the top of the movable column.

5. An adjustable quantitative multi-row fertilizer dispenser according to claim 3, characterized in that, A sleeve is fixed to the bottom of the movable column, and the sleeve is fitted on the outside of the fixed column.

6. An adjustable quantitative multi-row fertilizer dispenser according to claim 2, characterized in that, The other end of the fixed slider is fixed with a fixed rod, and both ends of the fixed rod are fixedly connected to the inner surface of the feed port.

7. The adjustable quantitative multi-row fertilizer dispenser according to claim 1, characterized in that, A feed pipe is fixedly connected between the bottom of the feed inlet and the top of the upper shell, and a spiral blade is provided on the part of the rotating shaft located inside the feed pipe.

8. The adjustable quantitative multi-row fertilizer dispenser according to claim 1, characterized in that, The centrifugal turntable includes a steepest descent disc and several centrifugal push plates fixed on the upper surface of the steepest descent disc.

9. An adjustable quantitative multi-row fertilizer dispenser according to claim 1, characterized in that, Both the upper and lower shells are fixed with mounting ears, and the mounting ears have through holes.

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