Organic fertilizer spreading mechanism

Abstract

The utility model provides an organic fertilizer spreading mechanism which is used for solving the problems of blockage and low fertilization efficiency of a fertilization mechanism caused by poor flowability of an organic fertilizer in the prior art. Comprising a shell assembly, a conveying assembly, a fertilizer spreading assembly and a power assembly used for driving a transmission shaft to rotate, the shell assembly comprises a rack, the transmission shaft rotationally installed on the rack, a fertilizer spreading shell fixedly connected to the upper portion of the rack, a fertilizer discharging shell communicated with the interior of the fertilizer spreading shell and a fertilizer box in the shape of an inverted circular truncated cone, and a fertilizer spreading opening is formed in the side wall of the fertilizer spreading shell; the conveying assembly comprises a variable-diameter conveying module and an equal-diameter conveying module fixedly connected with the variable-diameter conveying module, the variable-diameter conveying module comprises a first conveying shaft and a first spiral blade arranged on the first conveying shaft, the diameter of the first spiral blade is gradually reduced from top to bottom, and the first spiral blade is in contact fit with the inner wall of the fertilizer box; the fertilizer spreading assembly comprises a rotating shaft rotationally arranged in the fertilizer spreading shell, a plurality of fertilizer spreading blades and a fertilizer spreading disc. The mechanism not only can avoid blockage, but also can improve the fertilization efficiency.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the agricultural machinery technical field, especially a kind of organic fertilizer spreading mechanism. BACKGROUND

[0002] Agriculture is the basic industry that provides support for the construction and development of national economy, with the rapid development of science and technology, the mechanization degree of agricultural production has rapidly increased in recent years;At the same time, the improvement of living standards also makes consumers put forward higher and higher requirements for the health and quality of agricultural products, organic, green and ecological agriculture are gradually valued and begin to develop rapidly.

[0003] Fertilizer and pesticide reduction is the most basic requirement of organic, green and ecological agriculture, based on this background, organic fertilizer is gradually valued and more widely used. But the flowability of organic fertilizer is worse than that of traditional fertilizer, when using the traditional spreading mechanism on the fertilizer distributor, the problems of clogging of the spreading mechanism and uneven fertilization often occur, not only affect the fertilization effect and reduce the fertilization efficiency, but also affect the quality and capacity of agricultural products, and even damage the fertilizer distributor, so that the fertilization operation cannot be carried out normally. CONTENT OF THE UTILITY MODEL

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the utility model is to provide an organic fertilizer spreading mechanism, which is used to solve the problems of clogging of the spreading mechanism and low fertilization efficiency caused by poor flowability of organic fertilizer in the prior art.

[0005] To achieve the above-mentioned purpose and other related purposes, the utility model provides an organic fertilizer spreading mechanism, which comprises:

[0006] A housing assembly, the housing assembly comprises a rack, a transmission shaft rotatably installed on the rack, a fertilizer spreading shell fixed above the rack, a fertilizer discharging shell fixed above the fertilizer spreading shell and communicating with the inside of the fertilizer spreading shell, a fertilizer box in the shape of an inverted circular truncated cone, the fertilizer box is located above the fertilizer discharging shell and communicates with the inside of the fertilizer discharging shell, and a fertilizer spreading port is arranged on the side wall of the fertilizer spreading shell;

[0007] A conveying assembly, the conveying assembly comprises a variable-diameter conveying module and an equal-diameter conveying module fixed to the variable-diameter conveying module and located in the fertilizer discharging shell, the variable-diameter conveying module comprises a first conveying shaft and a first spiral blade arranged on the first conveying shaft, the diameter of the first spiral blade gradually decreases from top to bottom, and the first spiral blade is in contact with the inner wall of the fertilizer box;

[0008] The fertilizer spreading assembly comprises a transmission shaft, a rotating shaft, a plurality of fertilizer spreading blades, a fertilizer spreading disc, and a fertilizer spreading shell.

[0009] The power assembly is used to drive the transmission shaft to rotate and simultaneously drive the rotating shaft, the constant-diameter conveying module, and the variable-diameter conveying module to rotate.

[0010] Optionally, the fertilizer spreading blades have at least three pieces.

[0011] Optionally, the fertilizer spreading blades have an arc structure.

[0012] Optionally, the fertilizer spreading shell has a cylindrical shape.

[0013] Optionally, the constant-diameter conveying module comprises a second conveying shaft and a second spiral blade connected to the first spiral blade.

[0014] Optionally, the first spiral blade and the second spiral blade have equal pitches.

[0015] Optionally, the fertilizer spreading assembly further comprises an adjusting assembly comprising two fertilizer spreading directional guards, two upper cover plates, two rotating modules, and a control module.

[0016] The control module is used to control the two fertilizer spreading directional guards to move towards each other or in opposite directions.

[0017] Optionally, the rotating module comprises two rotating members arranged in an up-down manner and connecting the two fertilizer spreading directional guards.

[0018] Each rotating member comprises a first plate, a second plate, and a rotating shaft.

[0019] Optionally, the control module comprises a control rod, the control rod is provided with threads of same length and different rotation directions along a radial center cross section of the control rod, and two upper cover plates are provided with threaded holes matched with the threads of different rotation directions on the control rod.

[0020] Optionally, the power assembly comprises a motor or a hydraulic motor, and an output shaft of the motor or the hydraulic motor is fixedly connected with the transmission shaft coaxially.

[0021] As described above, the organic fertilizer spreading mechanism has at least the following beneficial effects:

[0022] The power assembly drives the transmission shaft to rotate, the transmission shaft drives the rotating shaft to rotate, the rotating shaft drives the constant-diameter conveying module and the first conveying shaft to rotate, the whole mechanism is centrally driven, the complexity and cost caused by multiple independent driving assemblies are reduced, the components are synchronously operated under the driving of the same power source, the coordination and stability of the fertilizer conveying and spreading process are ensured, the working efficiency and reliability of the mechanism are improved, the rotation speed of the power assembly is accurately controlled, the spreading amount of the organic fertilizer is accurately controlled, the fertilizer box adopts an inverted circular truncated cone design, the shape of the small upper part and the large lower part enables the organic fertilizer to be uniformly and forcibly conveyed downward from the fertilizer box under the action of the first spiral blade and the self-gravity of the organic fertilizer, the organic fertilizer is naturally concentrated at the bottom, the organic fertilizer flows smoothly to the fertilizer discharge shell, the possibility of residue and blockage of the organic fertilizer in the box is avoided, the fertilizer efficiency is improved, the problems of easy blockage and low fertilizer efficiency of the fertilizer spreading mechanism are solved, the organic fertilizer conveyed by the constant-diameter conveying module in the fertilizer discharge shell is conveyed to the spreading disc in the spreading shell, the multiple spreading blades arranged above the spreading disc and on the side wall of the rotating shaft in the circumferential direction uniformly distribute the organic fertilizer conveyed from the constant-diameter conveying module, the rotating spreading disc throws and drops the organic fertilizer from the spreading port under the action of the self-rotation centrifugal force of the spreading disc, the organic fertilizer is uniformly distributed, the uniformity of the spreading is improved, the balanced absorption of the organic fertilizer by the crops is facilitated, and the growth and development of the crops are promoted. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 The figure shows a three-dimensional structure schematic diagram of the utility model;

[0024] Figure 2 The figure shows a three-dimensional structure schematic diagram of the utility model;

[0025] Figure 3 The figure shows a three-dimensional structure schematic diagram of the utility model; Figure 1 The figure shows a three-dimensional structure schematic diagram of the utility model;

[0026] Element number explanation

[0027] Housing assembly 1, rack 11, transmission shaft 12, spreading shell 13, fertilizer discharge shell 14, fertilizer box 15, spreading port 16;

[0028] Conveying assembly 2, variable-diameter conveying module 21, first conveying shaft 211, first spiral blade 212, constant-diameter conveying module 22, second conveying shaft 221, second spiral blade 222;

[0029] Fertilizer spreading assembly 3, rotating shaft 31, fertilizer spreading blade 32, fertilizer spreading disc 33;

[0030] Power assembly 4;

[0031] Adjusting assembly 5, fertilizer spreading directional guard 51, upper cover plate 52, rotating module 53, rotating member 531, first page plate 5311, second page plate 5312, rotating shaft 5313, connecting sleeve 5314, control module 54, control rod 541. DETAILED DESCRIPTION

[0032] The following specific embodiments illustrate the implementation of the present application, and those skilled in the art can easily understand other advantages and effects of the present application from the disclosed content of the specification.

[0033] Please refer to Figures 1 to 3 It should be understood that the structures, proportions, sizes, etc. shown in the drawings of the specification are only used to illustrate the disclosed content, to facilitate understanding and reading by those skilled in the art, and are not intended to limit the implementation of the present application, and therefore do not have technical significance. Any modification of the structure, change of the proportion relationship, or adjustment of the size, without affecting the effects and purposes that can be achieved by the present application, should still fall within the scope of the disclosed technical content. At the same time, the terms such as "upper", "lower", "left", "right", "middle", and "one" used in the specification are only for the convenience of clear description, and are not intended to limit the scope of the present application, and the change or adjustment of the relative relationship, without substantial changes in technical content, should also be considered as the scope of the present application.

[0034] The following embodiments are only for illustration. The various embodiments can be combined, and are not limited to the content shown in the following single embodiment.

[0035] In this embodiment, please refer to Figures 1 to 3The utility model provides a kind of organic fertilizer spreading mechanism, including shell assembly 1, conveying assembly 2, spreading assembly 3 and power assembly 4, the shell assembly 1 includes rack 11, transmission shaft 12 being rotatably installed on the rack 11, spreading shell 13 being fixedly connected to the top of the rack 11, fertilizer discharge shell 14 being fixedly connected to the top of the spreading shell 13 and being communicated with the inside of the spreading shell 13, fertilizer box 15 being inverted circular truncated cone, the fertilizer box 15 is located the top of the fertilizer discharge shell 14 and is communicated with the inside of the fertilizer discharge shell 14, spreading port 16 is equipped on the lateral wall of the spreading shell 13, the rack 11 provides stable support foundation for integrated mechanism, improves the stability when working;The conveying assembly 2 includes variable-diameter conveying module 21, equal-diameter conveying module 22 being fixedly connected with the variable-diameter conveying module 21 and being located in fertilizer discharge shell 14, the variable-diameter conveying module 21 includes first conveying shaft 211, first spiral blade 212 being equipped on the first conveying shaft 211, the first spiral blade 212 gradually decreases from top to bottom in diameter, and is contacted and cooperated with the inner wall of the fertilizer box 15, the first spiral blade 212 of variable-diameter conveying module 21 gradually decreases from top to bottom in diameter and is contacted and cooperated with the inner wall of fertilizer box 15, can more effectively scrape down and convey downwards fertilizer from fertilizer box 15 according to the accumulation condition and flow characteristics of fertilizer in different positions in fertilizer box 15, on the upper portion of fertilizer box 15, the diameter of spiral blade is larger, can grab more fertilizer;With the downward movement of fertilizer, the diameter of spiral blade gradually decreases, ensure the uniformity and continuity of fertilizer conveying, avoid idle or jam phenomenon in the process of fertilizer conveying;The spreading assembly 3 includes coaxially fixed connection with the transmission shaft 12 and rotatably arranged in the spreading shell 13 pivot 31, a plurality of spreading blades 32, spreading disc 33 being located in the spreading shell 13 and coaxially fixed with the pivot 31, a plurality of the spreading blades 32 are arranged on the circumference of the lateral wall of the pivot 31 and located above the spreading disc 33;The power assembly 4 is used to drive the transmission shaft 12 rotation and drive the pivot 31, the equal-diameter conveying module 22 and the variable-diameter conveying module 21 rotate simultaneously.

[0036] The rotation of the transmission shaft 12 driven by the power assembly 4 drives the rotation of the rotating shaft 31, and the rotating shaft 31 drives the rotation of the equal-diameter conveying module 22 and the first conveying shaft 211, thereby realizing the centralized driving of the entire mechanism, reducing the complexity and cost brought by multiple independent driving assemblies, and ensuring the coordination and stability of the fertilizer conveying and spreading process under the synchronous operation of the components driven by the same power source, thereby improving the working efficiency and reliability of the mechanism. The rotation speed of the power assembly 4 is accurately controlled, so that the fertilizer spreading amount can be accurately controlled. The fertilizer box 15 adopts an inverted circular truncated cone design, and the shape of the upper small and lower large shape makes the organic fertilizer under the action of its own gravity and the first spiral blade 212, the first spiral blade 212 uniformly and forcibly conveying the organic fertilizer from the fertilizer box 15 downward, so that it can naturally concentrate at the bottom, which is conducive to the smooth flow of organic fertilizer to the fertilizer discharge shell 14, avoiding the possibility of residual and clogging of organic fertilizer in the box, improving the fertilizer efficiency, thereby solving the problems of easy clogging and low efficiency of the fertilizer application mechanism. The organic fertilizer conveyed by the equal-diameter conveying module 22 in the fertilizer discharge shell 14 is conveyed to the fertilizer spreading disc 33 in the fertilizer spreading shell 13, and the multiple fertilizer spreading blades 32 arranged above the fertilizer spreading disc 33 and spaced apart on the side wall of the rotating shaft 31 uniformly distribute the organic fertilizer conveyed from the equal-diameter conveying module 22. The rotation of the fertilizer spreading disc 33 causes the organic fertilizer to be thrown out of the fertilizer spreading port 16 under the action of the centrifugal force of the fertilizer spreading disc 33 itself and fall into the ground, so that the organic fertilizer is uniformly distributed, improving the uniformity of fertilizer spreading, which is conducive to the balanced absorption of organic fertilizer by crops and promotes the growth and development of crops.

[0037] In this embodiment, please refer to Figure 2 , the fertilizer spreading blade 32 has at least three pieces, so that the organic fertilizer is uniformly distributed between the two blades during the spreading process. The rotation of the rotating shaft 31 drives the rotation of the fertilizer spreading disc 33, and the organic fertilizer is thrown out of the fertilizer spreading port 16 under the action of the centrifugal force of the fertilizer spreading disc 33 itself and falls into the area to be fertilized, thereby improving the uniformity of fertilizer spreading.

[0038] In this embodiment, please refer to Figure 2 , the fertilizer spreading blade 32 is of arc structure. The arc structure blade can not only conform to the fluid mechanics characteristics in contact with air during rotation, reduce wind resistance and improve throwing efficiency, but also avoid the concentration of organic fertilizer, thereby improving the uniformity of fertilizer spreading.

[0039] In this embodiment, please refer to Figure 1 , the fertilizer discharge shell 14 is in the shape of a cylinder. The internal space of the cylindrical fertilizer discharge shell 14 is regular and smooth, and the resistance received by the organic fertilizer flowing therein is relatively uniform, so that the stable conveying of the organic fertilizer from the fertilizer box 15 to the fertilizer spreading shell 13 can be ensured, and the fertilizer spreading operation can be continuously and uniformly carried out.

[0040] In this embodiment, please refer to Figure 2The equal diameter conveying module 22 includes a second conveying shaft 221 and a second spiral blade 222 disposed on the second conveying shaft 221 and connected to the first spiral blade 212. The two ends of the second conveying shaft 221 are coaxially fixedly connected to the rotating shaft 31 and the first conveying shaft 211, respectively. The diameter of the second spiral blade 222 is equal and it contacts and cooperates with the inner wall of the fertilizer discharge shell 14.

[0041] The second helical blade 222 is connected to the first helical blade 212, enabling effective collaborative work between the constant-diameter conveying module 22 and the variable-diameter conveying module 21. The first helical blade 212 of the variable-diameter conveying module 21 gradually guides the organic fertilizer from the fertilizer box 15 to the fertilizer discharge shell 14, while the second helical blade 222 of the constant-diameter conveying module 22 continues to stably convey the fertilizer within the fertilizer discharge shell 14. The cooperation between the two ensures a smooth transition of fertilizer throughout the entire conveying process, guaranteeing the continuity and smoothness of fertilizer delivery. The equal diameter of the second helical blade 222 ensures that the amount of fertilizer conveyed in each rotation cycle remains relatively stable during rotation, thereby achieving more precise and uniform organic fertilizer delivery and preventing blockages.

[0042] In this embodiment, please refer to Figure 2 The first spiral blade 212 and the second spiral blade 222 have the same pitch. When rotating at the same angle, the first spiral blade 212 and the second spiral blade 222 push the organic fertilizer to travel the same distance. This ensures that the organic fertilizer maintains a stable and uniform transport state throughout the entire transport process from the fertilizer box 15 through the fertilizer discharge shell 14 to the fertilizer spreading shell 13. This avoids local accumulation of organic fertilizer or fluctuating transport volume during the transport process, thereby ensuring the uniformity of fertilizer spreading operations and facilitating the balanced absorption of fertilizer by crops.

[0043] In this embodiment, please refer to Figure 1 and Figure 3 It also includes an adjustment component 5, which includes two fertilizer spreading guide plates 51, two upper cover plates 52, two rotating modules 53 and a control module 54. One end of each of the two fertilizer spreading guide plates 51 is connected to both sides of the opening of the fertilizer spreading port 16 through the rotating module 53, and the two upper cover plates 52 are fixedly connected to the top of each of the two fertilizer spreading guide plates 51.

[0044] The control module 54 can be adjusted to control the two fertilizer spreading guide plates 51 to move towards each other or in opposite directions.

[0045] When it is necessary to spread fertilizer on a specific area, the fertilizer spreading directional guard 51 is moved towards or reversely by the control module 54, so as to reduce or expand the range of fertilizer spreading, concentrate the organic fertilizer in the specific area, improve the accuracy and universality of the fertilizer spreading, and reduce the waste of the organic fertilizer. In the process of spreading the fertilizer, the upper cover plate 52 can effectively prevent the fertilizer from being spread upwards, so that the fertilizer is spread along the direction and range determined by the fertilizer spreading directional guard 51, and the accuracy of the fertilizer spreading is further ensured.

[0046] In the embodiment, referring to Figure 1 and Figure 3 , the rotating module 53 comprises two rotating parts 531 arranged above and below and connecting the fertilizer spreading directional guard 51. The upper and lower double rotating parts 531 form double support, disperse stress, and improve the torsion resistance and bending resistance.

[0047] Each rotating part 531 comprises a first page plate 5311, a second page plate 5312 and a rotating shaft 5313. The first page plate 5311 is provided with two connecting sleeves 5314, the second page plate 5312 is provided with one connecting sleeve 5314, the two connecting sleeves 5314 on the first page plate 5311 and the one connecting sleeve 5314 on the second page plate 5312 are staggered and internally provided with a cavity structure, the rotating shaft 5313 is inserted into the cavity structure, the two ends of the cavity structure are in a closed state, and the first page plate 5311 and the second page plate 5312 are fixedly connected with the fertilizer shell 13 and the fertilizer spreading directional guard 51 respectively. The rotating part 531 is similar in working principle to the hinge structure.

[0048] By fixing the first page plate 5311 and the second page plate 5312 to the fertilizer shell 13 and the fertilizer spreading directional guard 51 respectively and staggering the connecting sleeves 5314, the torsion resistance of the rotating module 53 can be effectively enhanced, the fertilizer spreading directional guard 51 can smoothly move towards or reversely, the operator can accurately adjust the direction and range of the fertilizer spreading through the control module 54, the operation flexibility and response speed of the fertilizer spreading equipment are improved, when the fertilizer spreading directional guard 51 rotates to adjust the direction and range of the fertilizer spreading, the rotating module 53 can better resist the torsion force, the position accuracy of the fertilizer spreading directional guard 51 is ensured, unnecessary torsion or deviation of the fertilizer spreading directional guard 51 in the working process is prevented, and thus the accuracy and uniformity of the fertilizer spreading are ensured.

[0049] In the embodiment, referring to Figure 1 , the control module 54 comprises a control rod 541, the control rod 541 is provided with threads of the same length and different rotation directions along the radial center cross section thereof, and the two upper cover plates 52 are provided with threaded holes matched with the threads on the control rod 541. One end of the control rod 541 can be provided with a rotating handle, so as to facilitate the operator to operate.

[0050] The adjustment of the fertilizer scattering directional guard plates 51 is realized by matching the different rotation direction threads on the control rod 541 with the threaded holes on the two upper cover plates 52 respectively, so that the opposite or reverse movement of the two fertilizer scattering directional guard plates 51 can be realized, and the moving distance of the two fertilizer scattering directional guard plates 51 can be accurately controlled due to the high precision of the thread transmission, so that the direction and range of the fertilizer scattering can be accurately adjusted according to the actual requirements, and the accuracy and uniformity of the fertilizer scattering operation are improved.

[0051] In the embodiment, please refer to Figure 1 The power assembly 4 includes a motor or a hydraulic motor, the output shaft of the motor or the hydraulic motor is coaxially fixedly connected with the transmission shaft 12, so that the power transmission path is more direct, the transmission efficiency is high, and the operation is reliable, and the motor or the hydraulic motor is arranged on the rack 11.

[0052] Working principle: when in use, the power assembly 4 drives the transmission shaft 12 to rotate to drive the rotating shaft 31 to rotate, the rotating shaft 31 drives the second conveying shaft 221 and the first conveying shaft 211 to rotate, and then drives the second spiral blade 222 and the first spiral blade 212 to rotate. The fertilizer box 15 adopts an inverted circular table shape design, and the shape of being small at the top and large at the bottom makes the organic fertilizer be uniformly and forcibly conveyed downward from the fertilizer box 15 by the first spiral blade 212 under the action of the self-gravity, the first spiral blade 212 and the second spiral blade 222, so that the organic fertilizer can be naturally concentrated at the bottom, which is beneficial to the smooth flow of the organic fertilizer to the fertilizer discharge shell 14. The organic fertilizer conveyed from the equal-diameter conveying module 22 is uniformly distributed by the plurality of fertilizer scattering blades 32 located above the fertilizer scattering disc 33 and arranged at intervals on the circumferential wall of the rotating shaft 31, and the organic fertilizer is thrown out from the fertilizer scattering port 16 under the action of the self-rotation centrifugal force of the fertilizer scattering disc 33 and falls to the ground when the fertilizer scattering disc 33 rotates, so that the organic fertilizer is uniformly distributed, and the uniformity of the fertilizer scattering is improved. When it is necessary to scatter fertilizer in a specific area, the adjustment of the fertilizer scattering directional guard plates 51 is realized by matching the different rotation direction threads on the control rod 541 with the threaded holes on the two upper cover plates 52 respectively, so that the opposite or reverse movement of the two fertilizer scattering directional guard plates 51 can be realized, the range of the fertilizer scattering is reduced or enlarged, the organic fertilizer is concentrated in the specific area, the accuracy and universality of the fertilizer scattering are improved, the waste of the organic fertilizer is reduced, and the upper cover plate 52 can effectively prevent the fertilizer from being scattered upward during the fertilizer scattering process, so that the fertilizer is scattered along the direction and range determined by the fertilizer scattering directional guard plates 51, and the accuracy of the fertilizer scattering is further ensured.

[0053] The utility model discloses a power assembly 4 drive transmission shaft 12 rotation drive shaft 31 rotation, drive shaft 31 drive equidiameter conveying module 22 and first conveying shaft 211 rotation, realized the centralized drive of whole mechanism, reduced the complexity and cost of multiple independent drive assembly, and each component is synchronous operation under the drive of same power source, guarantees the coordination and stability of fertilizer conveying and spreading process, improves the work efficiency and reliability of mechanism, and through the rotation speed of power assembly 4 accurate control, can accurate control the amount of spreading fertilizer. Fertilizer box 15 adopts the design of inverted circular truncated cone, and the shape of big down small makes organic fertilizer under the action of self -weight and first helical blade 212, and first helical blade 212 will organic fertilizer even, forcedly convey down from fertilizer box 15, so that can naturally concentrate to the bottom, is favorable to the smooth flow of organic fertilizer to fertilizer shell 14, avoids the possibility of organic fertilizer remaining and jam in the box, improves the fertilization efficiency of fertilizer, thereby solves the problems, such as easy jamming of fertilization mechanism and low fertilization efficiency, and the organic fertilizer conveyed to spreading disc 33 in spreading shell 13 through equidiameter conveying module 22 in fertilizer shell 14, and a plurality of spreading vanes 32 are arranged on the side wall of rotating shaft 31 and are arranged in the equidiameter conveying module 22, and the organic fertilizer conveyed from the equidiameter conveying module 22 is evenly distributed, and the spreading disc 33 rotates and the organic fertilizer is thrown from the spreading port 16 under the action of the centrifugal force of the spreading disc 33, and falls into the ground, so that the organic fertilizer is evenly distributed, improves the uniformity of spreading, is favorable to the balanced absorption of organic fertilizer by crops, and promotes the growth and development of crops. Therefore, the utility model effectively overcomes the shortcomings in the prior art and has high industrial utilization value.

[0054] The above embodiments only exemplarily illustrate the principles and effects of the utility model, and are not used to limit the utility model. Any person skilled in the art can modify or change the above embodiments without departing from the spirit and scope of the utility model. Therefore, all equivalent modifications or changes completed by those skilled in the art without departing from the spirit and technical thought disclosed by the utility model should be covered by the claims of the utility model.

Claims

1. An organic fertilizer spreading mechanism characterized by comprising: The utility model relates to a fertilizer spreading machine, including: A shell assembly includes a rack, a transmission shaft rotatably mounted on the rack, a fertilizer spreading shell fixed above the rack, a fertilizer discharging shell fixed above the fertilizer spreading shell and communicating with the inside of the fertilizer spreading shell, a fertilizer box shaped as an inverted circular truncated cone, the fertilizer box being located above the fertilizer discharging shell and communicating with the inside of the fertilizer discharging shell, and a fertilizer spreading opening being provided on the side wall of the fertilizer spreading shell; A conveying assembly includes a variable-diameter conveying module and a constant-diameter conveying module fixed to the variable-diameter conveying module and located inside the fertilizer discharging shell, the variable-diameter conveying module including a first conveying shaft and a first spiral blade provided on the first conveying shaft, the first spiral blade gradually decreasing in diameter from top to bottom and being in contact with the inner wall of the fertilizer box; A fertilizer spreading assembly includes a rotating shaft coaxially fixed to the transmission shaft and rotatably arranged inside the fertilizer spreading shell, a plurality of fertilizer spreading blades spaced apart along the side wall of the rotating shaft and located above the fertilizer spreading disc, and the fertilizer spreading disc coaxially fixed to the rotating shaft and located inside the fertilizer spreading shell; A power assembly is used to drive the transmission shaft to rotate and simultaneously drive the rotating shaft, the constant-diameter conveying module, and the variable-diameter conveying module to rotate.

2. The organic fertilizer spreading mechanism according to claim 1, characterized in that: The fertilizer spreading blades have at least three pieces.

3. The organic fertilizer spreading mechanism according to claim 1, characterized in that: The fertilizer spreading blades have an arc-shaped structure.

4. The organic fertilizer spreading mechanism according to claim 1, characterized in that: The fertilizer discharging shell has a cylindrical shape.

5. The organic fertilizer spreading mechanism according to claim 4, characterized in that: The constant-diameter conveying module includes a second conveying shaft and a second spiral blade provided on the second conveying shaft and connected to the first spiral blade, the second conveying shaft being coaxially fixed to the rotating shaft and the first conveying shaft at both ends, and the second spiral blade having an equal diameter and being in contact with the inner wall of the fertilizer discharging shell.

6. The organic fertilizer spreading mechanism according to claim 5, characterized in that: The first spiral blade and the second spiral blade have an equal pitch.

7. The organic fertilizer spreading mechanism according to claim 1, characterized in that: The utility model further includes an adjusting assembly, which includes two fertilizer spreading directional guards, two upper cover plates, two rotating modules, and a control module, one end of each of the two fertilizer spreading directional guards is connected to the two sides of the fertilizer spreading opening through the rotating module, and each of the two upper cover plates is fixedly connected to the top end of each of the two fertilizer spreading directional guards. The control module is adjusted to control the two fertilizer spreading directional guards to move towards each other or in opposite directions.

8. The organic fertilizer spreading mechanism according to claim 7, characterized in that: The rotating module includes two rotating members arranged above and below and connecting the fertilizer spreading directional guards. Each of the rotating members includes a first page plate, a second page plate, and a rotating shaft, two connecting sleeves are provided on the first page plate, one connecting sleeve is provided on the second page plate, the two connecting sleeves on the first page plate and the one connecting sleeve on the second page plate are staggered and have a hollow structure inside, the rotating shaft is inserted into the hollow structure, the ends of the hollow structure are closed, and the first page plate and the second page plate are fixedly connected to the fertilizer spreading shell and the fertilizer spreading directional guard, respectively.

9. The organic fertilizer spreading mechanism according to claim 7, characterized in that: The control module includes a control rod, the control rod has threads of the same length and different rotation directions symmetrically arranged along the radial center cross section, and each of the two upper cover plates has a threaded hole threadedly connected to the threads of different rotation directions on the control rod.

10. The organic fertilizer spreading mechanism according to claim 1, characterized in that: The power assembly comprises a motor or a hydraulic motor, and an output shaft of the motor or the hydraulic motor is coaxially fixedly connected with the transmission shaft.

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