Sowing plate

Abstract

The utility model discloses a sowing tray, which relates to the technical field of agricultural operation and comprises an upper tray body and a lower tray body, a plurality of Archimedes spiral material pushing plates are connected between the upper tray body and the lower tray body, the center of the lower tray body is a low end, the edge of the lower tray body is a high end, an upper inclined surface is arranged between the low end and the high end, and a lower inclined surface is arranged between the upper inclined surface and the lower inclined surface. An opening is formed in the center of the upper plate body, and a flanging structure is arranged on the edge of the lower plate body. The utility model provides the sowing disc which is lower in motor power requirement, saves electric energy, improves the sowing radius, and can prevent pesticide or fertilizer from rising up, colliding with blades of an unmanned aerial vehicle or an equipment structure of a traditional agricultural machine, and being capable of preventing the blades from being damaged and the equipment structure from being polluted for a long time.

Description

TECHNICAL FIELD

[0001] The utility model relates to agricultural operation technical field, concretely relates to a sowing disc. BACKGROUND

[0002] With the continuous development of science and technology, more and more automatic control equipment is applied in agricultural operation. At present, in order to spray pesticide and fertilizer to crops, the pesticide and fertilizer can be sprayed by automatic nozzle in a centrifugal manner. The automatic nozzle comprises a rotor shaft and a flinger that can rotate under the driving of the rotor shaft. The pesticide and fertilizer enter the flinger through an internal passage and are dispersed and flung out in a mist form under the centrifugal force of high-speed rotation of the flinger, achieving the effect of uniform spraying. At present, the sowing disc on the sower of traditional agricultural machine or agricultural unmanned aerial vehicle in the market is provided with multiple pushing plates for flinging material, but the pushing plates are generally straight plates. The liquid particles collide with the pushing plates, the pushing plates are subjected to large resistance of the liquid particles, the momentum of the liquid particles is lost, the motor power demand is higher, and electric energy is wasted. Under the condition that the speed of the sowing disc is constant, the sowing radius of the ordinary sowing disc is small, and a longer distance cannot be reached. SUMMARY

[0003] TECHNICAL PROBLEM

[0004] The technical problem to be solved by the utility model is to provide a sowing disc with lower motor power demand, saving electric energy, and improved sowing radius, and the pesticide or fertilizer can be prevented from being lifted and impacting the propeller blade of the unmanned aerial vehicle or the equipment structure of the traditional agricultural machine, which can cause damage to the propeller blade and pollution to the equipment structure for a long time.

[0005] TECHNICAL SCHEME

[0006] To solve the above problems, the utility model provides the technical scheme as follows:

[0007] A sowing disc comprises an upper disc body and a lower disc body, multiple Archimedes spiral pushing plates are connected between the upper disc body and the lower disc body, the center of the lower disc body is a low end and the edge is a high end, an upper inclined surface is formed between the low end and the high end, the center of the upper disc body is provided with an opening, and the edge of the lower disc body is provided with a flange structure.

[0008] The pushing plate can push the material outward from the center by rotating, which utilizes the basic principle of Archimedes screw, that is, when the screw body rotates, it can effectively move the object along the spiral line. Compared with traditional linear or other shaped pushing plates, the kinetic energy loss caused by the collision of the particles with the pushing plate is reduced under the same motor power, thereby reducing the required electric energy. The lower disc body with low-end, high-end and upper inclined surface structures has a longer trajectory of the particles under the same diameter, so it has a better export speed and a larger spreading radius of the particles. Moreover, the upper inclined surface makes the throwing angle of the particles larger, and according to the parabolic principle, the particles have a larger spreading radius. The larger spreading radius enables the single operation to cover a larger area, thereby improving the work efficiency. The flange design can increase the overall stiffness, reduce the deformation of the disc body, and reduce the eccentric vibration of the output shaft, thereby prolonging the service life of the connected output shaft. The opening is used for entering the particles. The existence of the upper disc body reduces the direct impact of the pesticide or fertilizer on the unmanned aerial vehicle paddle and other equipment structures, thereby protecting the equipment, reducing the maintenance cost, and reducing the material waste and environmental pollution caused by the collision

[0009] Optionally, the lower disc body comprises a flange structure which is an integral structure.

[0010] The integral flange structure has no joint between the flange structure and the lower disc body, which eliminates the weakness that may be caused by traditional welding or adhesive connection. This makes the entire spreading disc more solid and durable, and can withstand greater pressure and impact, which is particularly suitable for use in agricultural environments because the environment is usually harsh. The absence of joints reduces the risk of corrosion, aging or breaking caused by long-term use or exposure to harsh conditions. The integral structure can better resist external factors such as ultraviolet rays, moisture, chemicals, etc., thereby prolonging the service life of the product. The integral production method is generally simpler than multi-component assembly, which can reduce manufacturing steps and production costs. At the same time, it can also reduce the possibility of assembly errors and improve the consistency of product quality. Since there is no complex connection part, the integral structure is easier to clean, reducing the opportunity for residual accumulation. In addition, it is also convenient for daily inspection and maintenance, thereby reducing the long-term maintenance cost.

[0011] Optionally, the inclination angle of the upper inclined surface is 0°-30°.

[0012] The inclination angle of the upper inclined surface is limited, and if the angle is too large, the speed of the particles will be affected, thereby reducing the spreading radius.

[0013] Optionally, the pushing plate is tightly connected with the upper disc body and the lower disc body, and the connection is a sealed structure.

[0014] The sealing structure can effectively prevent material leakage at the connection between the push plate and the upper and lower disc bodies. This is particularly important for pesticides, fertilizers, and other fine particles, as any leakage not only leads to waste but also may pollute the environment. Good sealing performance helps to reduce the dispersion of material during spreading, ensuring that all materials are uniformly spread in the predetermined manner, thereby improving work efficiency and reducing the impact on the surrounding environment. The sealing structure can also reduce vibration caused by loosening, making the entire spreading disc more stable during operation, further improving work efficiency and quality.

[0015] As an option, the push plate is thick in the center and thin at the edges, and the lower part of the push plate is adapted to the top surface of the lower disc body.

[0016] The central part of the push plate is thicker, providing stronger structural support to ensure that it does not deform or break during high-speed rotation. This is particularly important because the push plate needs to withstand large centrifugal forces and material impact. The edge part is thinner, reducing the overall weight and reducing inertia during rotation, making it easier for the motor to drive the push plate, thereby saving energy. The lower part of the push plate is adapted to the top surface of the lower disc body, allowing close fitting between the two without gaps. This prevents material leakage between the push plate and the lower disc body, ensuring smooth material transmission.

[0017] As an option, the lower part of the push plate is provided with a protrusion, and the top surface of the lower disc body is provided with a groove matching the protrusion.

[0018] The design of the protrusion and the groove ensures precise alignment between the push plate and the lower disc body, allowing them to quickly and accurately combine during installation. This alignment prevents the push plate from shifting or shaking during rotation, ensuring stable operation. The matching of the protrusion and the groove can effectively reduce the vibration of the push plate during high-speed rotation, making the entire spreading disc more stable. This not only improves work efficiency but also prolongs the service life of the equipment. Through mechanical cooperation, the protrusion and the groove can provide additional fixing force to prevent the push plate from loosening during long-term use or impact. This is particularly important for unmanned aerial vehicles and other high-altitude work equipment, as any loosening may cause material leakage or equipment failure.

[0019] As an option, the flange structure is a rounded structure.

[0020] The rounded design can effectively disperse stress and avoid the occurrence of stress concentration points. Compared with straight angles or sharp edges, rounded corners can better distribute loads when impacted or under pressure, thereby enhancing the overall strength and durability of the flanged structure. The rounded design can also improve the fatigue resistance of the material and extend the service life of the flanged structure. Especially in the case of long-term use or frequent vibration, the rounded design can reduce the generation and propagation of micro-cracks, reducing the risk of structural failure. The rounded design can effectively reduce the presence of sharp edges, avoiding accidental contact by operators during installation, maintenance, or use, which can cause injury. The rounded design allows the material to pass more smoothly through the flanged structure when spreading outward from the edge of the lower disc body, reducing the accumulation of material at the edge. This smooth transition helps improve the flow efficiency of the material and ensure uniform spreading.

[0021] As an option, a surrounding side wall is provided along the opening.

[0022] The surrounding side wall can effectively prevent material from splashing out of the central opening. Especially at high speed, material may be thrown out due to centrifugal force, and the presence of the side wall can block this phenomenon, ensuring that all material enters the inside of the spreading disc in the intended manner.

[0023] Advantages

[0024] Compared with the prior art, the technical scheme provided by the utility model has the following advantages:

[0025] The technical scheme provided by the utility model has the following advantages: the upper and lower disc bodies and the plurality of Archimedes spiral-shaped pusher plates, the lower disc body has a central low edge and a high edge forming an inclined surface, the upper disc body has an opening in the center, and the edge of the lower disc body has a flange. This design aims to reduce the power requirement of the motor to save electricity, increase the spreading radius, and prevent pesticides or fertilizers from colliding with the unmanned aerial vehicle propeller or agricultural machinery structure, reducing equipment damage and pollution. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 An overall structure schematic diagram of a spreading disc is provided for an embodiment of the utility model;

[0027] Figure 2 A structure schematic diagram of a lower disc body of a spreading disc is provided for an embodiment of the utility model;

[0028] Figure 3 A structure schematic diagram of a spreading disc with a side wall is provided for an embodiment of the utility model;

[0029] Figure 4 A cross-sectional schematic diagram of a spreading disc is provided for an embodiment of the utility model;

[0030] 1, upper disc body; 101, side wall; 102, opening; 2, lower disc body; 201, pushing plate; 202, upper inclined surface; 203, low end; 204, high end; 205, flange. DETAILED DESCRIPTION

[0031] In order to further understand the content of the present application, the present application will be described in detail in conjunction with the drawings and examples.

[0032] Example 1

[0033] In conjunction with the drawings Figure 1 A spreading disc, comprising an upper disc body 1 and a lower disc body 2, a plurality of Archimedes spiral pushing plates 201 are connected between the upper disc body 1 and the lower disc body 2. The upper disc body 1 is a ring-shaped sheet body, and a circular opening 102 is arranged in the center of the upper disc body 1. The length of the pushing plate 201 is greater than the width of the upper disc body 1. The outer end of the pushing plate 201 extends to the outer edge of the upper disc body 1 and the lower disc body 2. The outer edges of the upper disc body 1 and the lower disc body 2 coincide in the vertical direction. A plurality of through holes for fixing are arranged in the center of the lower disc body 2, which facilitates the use of bolts to be fastened to the output shaft of the motor to achieve spreading.

[0034] The shape of the pushing plate 201 affects the motor power. Through comparative tests, under the same spreading width, the pushing plate 201 follows the Archimedes spiral principle, and the motor power decreases by 20%. In the case of a straight plate, more fertilizer particles will collide with the pushing plate 201, resulting in momentum loss. The spiral arc pushing plate 201 can better match the trajectory of the fertilizer particles when they are centrifugally thrown out, thereby naturally and smoothly guiding the fertilizer particles out of the centrifugal throwing disc, reducing energy loss, and ensuring that the spreading width remains unchanged. The test data are as follows:

[0035] Spreading disc type Fertilizer spreading width Discharge speed Motor power Flat baffle 8 meters 80 Kg / min 120-125W Spiral baffle 8 meters 80 Kg / min 95-99W

[0036] In conjunction with the drawings Figure 4 The center of the lower disc body 2 is a low end 203 and the edge is a high end 204, and the upper inclined surface 202 is between the low end 203 and the high end 204. The center of the lower disc body 2 is concave, and the liquid particles are centrifuged and thrown out along the lower disc body 2 and the pushing plate 201.

[0037] The lower disc body 2 comprises a flange 205 structure which is an integral structure.

[0038] The inclination angle of the upper inclined surface 202 is 0°~30°. In this embodiment, the inclination angle of the upper inclined surface 202 can be 1°, 15° or 30°. The inclination angle of the upper inclined surface 202 is greater than 0°.

[0039] The pusher plate 201 is tightly connected to the upper plate 1 and the lower plate 2, and the connection is a sealed structure. The pusher plate 201 is thicker in the center and thinner at the edges, and the lower part of the pusher plate 201 is adapted to the top surface of the lower plate 2. The lower part of the pusher plate 201 has a protrusion, and the top surface of the lower plate 2 has a groove that mates with the protrusion. The protrusion and the groove are used to engage the pusher plate 201.

[0040] Combined with appendix Figure 2 , 4 The lower plate body 2 has a flange 205 structure on its edge. The lower plate body 2 has a downward flange 205, and the flange 205 structure has rounded corners.

[0041] Combined with appendix Figure 3 , 4 A surrounding sidewall 101 may be provided along the opening 102 of the upper disc body 1. The sidewall 101 is slightly inclined and is smaller at the top and larger at the bottom. Splashing may occur when the liquid enters the interior of the spreading disc, and the sidewall 101 can effectively block the splashed liquid particles.

[0042] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A seeding disc, characterized in that, It includes an upper plate and a lower plate, with multiple Archimedes spiral-shaped pusher plates connected between the upper plate and the lower plate. The lower plate has a low center and a high edge, with an upward slope between the low and high ends. The upper plate has an opening in the center, and the lower plate has a flanged structure at its edge.

2. A seeding disc according to claim 1, characterized in that, The lower plate body includes a flanged structure that is integrally formed.

3. A seeding disc according to claim 1, characterized in that, The inclination angle of the upper inclined surface is 0°~30°.

4. A seeding disc according to claim 1, characterized in that, The pusher plate is tightly connected to the upper and lower discs, and the connection is a sealed structure.

5. A seeding disc according to claim 1, characterized in that, The pusher plate is thicker in the center and thinner at the edges, and the lower part of the pusher plate is adapted to the top surface of the lower plate.

6. A seeding disc according to claim 5, characterized in that, The lower part of the pusher plate has a protrusion, and the top surface of the lower plate body has a groove that matches the protrusion.

7. A seeding disc according to claim 1, characterized in that, The flange structure is a rounded corner structure.

8. A seeding disc according to claim 1, characterized in that, A surrounding sidewall is provided along the opening.

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