Seedling thrower wind field distribution method and device

Abstract

The invention discloses a seedling throwing machine wind field distribution method and device. A fan is connected with a pipeline assembly, the pipeline assembly is connected with a seedling blowing mechanism, a flexible connecting sleeve is installed between the pipeline assembly and the seedling blowing mechanism, a jacking piece is installed on the seedling blowing mechanism, and the jacking piece drives the seedling blowing mechanism to pitch up and down and adjusts the pitch angle of an air outlet of the seedling blowing mechanism. The jacking piece accurately regulates and controls the pitch angle of the air outlet, and it is ensured that the seedling throwing distance is controllable; the air guide plate assembly adjusts left and right air outlet deflection angles and controls the area of a seedling throwing area; the drainage plate guides and adjusts air flow of the air duct, so that air uniformly and efficiently guides seedlings, and the seedling throwing uniformity is improved.

Description

Technical Field

[0001] The present invention relates to the field of agricultural machinery, and particularly to a method and device for the wind field distribution of a rice transplanter. Background Art

[0002] During the operation of existing rice transplanters, it is difficult to accurately control the throwing distance, the area of the throwing region, and the uniformity of the rice seedlings. Traditional rice transplanting devices cannot flexibly adjust the wind field distribution according to actual needs, resulting in an unsatisfactory rice transplanting effect. In some areas, the rice seedlings are dense, while in other areas, they are sparse, which affects the growth and yield of crops. At the same time, due to the uneven wind field distribution, the forces on the rice seedlings during the throwing process are inconsistent, further reducing the accuracy of rice transplanting. Therefore, it is of great practical significance to develop a method and device for the wind field distribution of a rice transplanter that can accurately control the wind field distribution and achieve a better rice transplanting effect. Summary of the Invention

[0003] The purpose of the present invention is to provide a method and device for the wind field distribution of a rice transplanter, which can accurately control the wind field distribution, achieve accurate control of the throwing distance, accurate adjustment of the throwing area, and improvement of the throwing uniformity, thereby improving the rice transplanting effect and significantly enhancing the agricultural production efficiency.

[0004] On the one hand, the present invention provides a device for the wind field distribution of a rice transplanter. The fan is connected to the pipeline assembly, and the pipeline assembly is connected to the rice seedling blowing mechanism. A flexible connecting sleeve is installed between the pipeline assembly and the rice seedling blowing mechanism. A lifting member is installed on the rice seedling blowing mechanism, and the lifting member drives the rice seedling blowing mechanism to pitch up and down to adjust the pitch angle of the air outlet of the rice seedling blowing mechanism.

[0005] In a further technical solution, in order to adjust the air outlet deflection angle to control the throwing area, a wind guide plate assembly is installed at the air outlet of the rice seedling blowing mechanism. The wind guide plate assembly controls the left and right deflection angles of the air outlet of the rice seedling blowing mechanism. It includes a wind guide motor, and the wind guide motor drives the wind guide plate assembly to swing left and right to adjust the left and right deflection angles of the air outlet of the rice seedling blowing mechanism. The wind guide plate assembly includes at least two wind guide plates, a driven wind guide gear, and a wind guide rack. The wind guide plates are connected to the driven wind guide gear. A driving wind guide gear is installed on the guiding motor. The driven wind guide gear is meshed with the upper surface teeth of the wind guide rack, and the driving wind guide gear is meshed with the lower surface teeth of the wind guide rack.

[0006] In a further technical solution, in order to keep the air volume at the middle and both ends of the air outlet of the rice seedling blowing mechanism consistent, which helps to more evenly and efficiently direct the wind to the rice seedlings and achieve a better rice transplanting uniformity effect, a fan-shaped drainage plate is installed in the air duct formed between the air inlet and the air outlet of the rice seedling blowing mechanism. The fan-shaped angle of the drainage plate is 30° - 60°, and its spacing decreases along the wind direction.

[0007] In order to make the air volume in the middle and at both ends of the air outlet of the rice blowing mechanism consistent, which helps to direct the air to the rice seedlings more evenly and efficiently, and achieve a better effect of uniform rice throwing, in a further technical solution, the width of the air inlet of the rice blowing mechanism is smaller than the width of the air outlet of the rice blowing mechanism, the height of the air inlet of the rice blowing mechanism is greater than the height of the air outlet of the rice blowing mechanism, and the area of the air inlet of the rice blowing mechanism is greater than the area of the air outlet of the rice blowing mechanism; the air duct area of the rice blowing mechanism gradually linearly contracts.

[0008] In order to achieve a better rice throwing effect, in a further technical solution, the pipeline assembly includes a longitudinal pipeline and a transverse pipeline. The two ends of the longitudinal pipeline are respectively connected to the fan and the middle section of the transverse pipeline, and the two ends of the transverse pipeline are respectively connected to the left and right rice blowing mechanisms.

[0009] In a further technical solution, the fan is a blower or a single-channel fan or a ducted fan.

[0010] On the other hand, the present invention provides a method for distributing the air field of a rice transplanter, which is realized based on the above-mentioned air field distribution device of a rice transplanter, and includes the following steps: Step 1: Drive the rice blowing mechanism to pitch through the lifting member, and adjust the pitch angle of the air outlet to control the rice throwing distance; Step 2: Drive the air guiding plate assembly to swing left and right through the air guiding motor, and adjust the air outlet deflection angle to control the area of the rice throwing area; Step 3: Use the air guiding plate to guide the air flow in the air duct, and combine with the matching design of the sizes of the air inlet and the air outlet to optimize the air volume uniformity of the air outlet; Step 4: Distribute the air volume through the layout of the longitudinal pipeline and the transverse pipeline to ensure the balance of the air pressure of the left and right rice blowing mechanisms.

[0011] In a further technical solution, in Step 1, the adjustment range of the pitch angle is -15° to +30°, and the accuracy is ±1°.

[0012] In a further technical solution, in Step 2, the swing angle of the air guiding plate is ±45°, and the accurate deflection is achieved by controlling the rotation speed of the air guiding motor through the PID algorithm.

[0013] The beneficial effects of the method and device for distributing the air field of a rice transplanter of the present invention compared with the prior art are as follows: 1. Precise control of the rice throwing distance and the area of the area: By using the lifting member to adjust the pitch angle of the air outlet of the rice blowing mechanism, the rice throwing distance can be precisely controlled; by using the air guiding plate assembly to adjust the left and right deflection angles of the air outlet of the rice blowing mechanism, the area of the rice throwing area can be precisely controlled, meeting the requirements of different farmland operations; 2. Improve the evenness of rice transplanting by throwing: By designing the sizes of the drainage plate, air inlet, and air outlet, as well as the air duct area, etc., the airflow in the air duct is guided and adjusted to keep the air volume consistent in the middle and at both ends of the air outlet of the rice blowing mechanism, which helps to direct the air to the rice seedlings more evenly and efficiently, achieving a better effect of evenness in rice transplanting by throwing. 3. Enhance agricultural production efficiency: By optimizing the air duct design and the layout of pipeline components, the uniformity of air volume distribution is further improved, ensuring the accuracy of rice seedling throwing, reducing the workload of manual rice seedling supplementation, and significantly enhancing agricultural production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The drawings forming a part of the present invention are used to provide a further understanding of the present invention. The schematic embodiments and descriptions thereof of the present invention are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings: Figure 1 is a three-dimensional structural schematic diagram of the air field distribution device of the rice transplanter of the present invention; Figure 2 is Figure 1 a structural schematic diagram of the air guiding plate assembly of; Figure 3 is Figure 1 a structural schematic diagram of the rice blowing mechanism of. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] It should be noted that, on the premise of not generating conflicts, the various embodiments and features of the present invention can be combined with each other. Next, I will elaborate on the present invention in detail in combination with the drawings and specific embodiments.

[0016] As Figure 1 shown, the present invention preferably provides an air field distribution device for a rice transplanter. The fan 1 is connected to the pipeline component 2. The pipeline component 2 includes a longitudinal pipeline 20 and a transverse pipeline 21. Both ends of the longitudinal pipeline 20 are respectively connected to the fan 1 and the middle section of the transverse pipeline 21. Both ends of the transverse pipeline 21 are respectively connected to the left and right rice blowing mechanisms 4. A flexible connection sleeve 3 is installed between the pipeline component 2 and the rice blowing mechanism 4. A lifting member 5 is installed on the rice blowing mechanism 4. The lifting member 5 drives the rice blowing mechanism 4 to pitch up and down to adjust the pitch angle of the air outlet of the rice blowing mechanism 4. The lifting member 5 can adopt a hydraulic cylinder or an electric cylinder as the driving element to adapt to different working environments and requirements. The flexible connection sleeve 3 can adopt a telescopic elastic connection sleeve or a rubber connection sleeve and other connection structures that can adjust the pitch up and down. The fan 1 is a blower or a single-channel fan or a ducted fan. According to the corresponding relationship between the wind force and the throwing speed of the rice seedlings, the wind force is changed by frequency modulation to control the throwing speed of the rice seedlings.

[0017] The pitch angle of the air outlet of the rice blowing mechanism 4, that is, the angle between it and the horizontal plane, can be adjusted by the telescoping of the lifting member 5. When the lifting member 5 extends, the rice blowing mechanism 4 is lifted, and the pitch angle of the air outlet increases, resulting in a shorter throwing distance; conversely, when the lifting member 5 contracts, the rice blowing mechanism 4 tilts downward, the pitch angle of the air outlet decreases, and the throwing distance increases. Through this adjustment method, the throwing distance of the rice seedlings can be effectively controlled.

[0018] As Figure 2 shown, a wind guiding plate assembly 6 is installed at the air outlet of the rice blowing mechanism 4, and the wind guiding plate assembly 6 controls the left - right deflection angle of the air outlet of the rice blowing mechanism 4. The wind guiding motor 7 drives the wind guiding plate assembly 6 to swing left and right to adjust the left - right deflection angle of the air outlet of the rice blowing mechanism 4. The wind guiding plate assembly 4 includes a plurality of wind guiding plates 60, a driven wind guiding gear 62 and a wind guiding rack 61. The wind guiding plate 60 is connected to the driven wind guiding gear 62. A driving wind guiding gear 63 is installed on the guiding motor 7. The driven wind guiding gear 62 is in tooth - meshing with the upper surface of the wind guiding rack 61, and the driving wind guiding gear 63 is in tooth - meshing with the lower surface of the wind guiding rack 61.

[0019] When the wind guiding plate assembly 6 on the left - hand side rice blowing mechanism 4 swings to the left and the wind guiding plate assembly 6 on the right - hand side rice blowing mechanism 4 swings to the right, the air outlet range area of the rice blowing mechanisms 4 on both the left and right sides expands, and the area of the rice - throwing region increases. Conversely, when the wind guiding plate assembly 6 on the left - hand side rice blowing mechanism 4 swings to the right and the wind guiding plate assembly 6 on the right - hand side rice blowing mechanism 4 swings to the left, that is, when the wind guiding plate assembly 6 swings towards the center, the air outlet range shrinks, and the area of the rice - throwing region decreases to adapt to a narrow or specific - shaped rice - throwing region.

[0020] As Figure 3 shown, a fan - shaped drainage plate 40 is installed in the air duct formed between the air inlet 42 and the air outlet 41 of the rice blowing mechanism. The width W1 of the air inlet of the rice blowing mechanism is narrower than the width W2 of the air outlet, while the height L1 of the air inlet is higher than the height L2 of the air outlet. Therefore, the area of the air inlet 42 is larger than the area of the air outlet 41. The air duct area of the rice blowing mechanism 4 gradually linearly contracts. The drainage plate 40 effectively guides and adjusts the air flow in the air duct to ensure that the air can be evenly and efficiently directed to the rice seedlings, thereby improving the uniformity of rice - throwing. In addition, optimizing the air duct design and the layout of the pipeline assembly 2 can further improve the uniformity of air volume distribution, ensure the accuracy of rice - seedling throwing, and thus significantly improve the efficiency of agricultural production.

[0021] The present invention also provides a method for the air - field distribution of a rice - throwing machine, which is realized based on the above - mentioned air - field distribution device of a rice - throwing machine, and includes the following steps: Step 1: Drive the rice blowing mechanism 4 to pitch through the lifting member 5, adjust the pitch angle of the air outlet to control the throwing distance; the pitch angle adjustment range is from - 15° to + 30°, and the accuracy is ± 1°.

[0022] Step 2: Drive the air deflector assembly 6 to swing left and right by the air guiding motor 7, adjust the air outlet deflection angle to control the area of the seedling throwing area; the swing angle of the air deflector assembly 6 is ±45°, and the rotation speed of the air guiding motor 7 is controlled by the PID algorithm to achieve precise deflection.

[0023] Step 3: Use the drainage plate 40 to guide the air flow in the air duct, and combine the matching design of the sizes of the air inlet 42 and the air outlet 41 to optimize the air volume uniformity at the air outlet; Step 4: Distribute the air volume through the layout of the longitudinal pipe 20 and the transverse pipe 21 to ensure the equal air pressure of the left and right seedling blowing mechanisms 4.

[0024] The operation and usage requirements are as follows: Adjustment of the seedling throwing distance: According to the actual seedling throwing distance requirement, the operator controls the action of the lifting member 5 to drive the seedling blowing mechanism 4 to pitch up and down, and adjusts the pitch angle of the air outlet until the required seedling throwing distance is reached.

[0025] Adjustment of the seedling throwing area: Start the air guiding motor 7, control the left and right swing of the air deflector assembly 6, and adjust the left and right air outlet deflection angles, so as to change the seedling throwing area and meet the requirements of different farm operation ranges.

[0026] Optimization of the air field uniformity: During the seedling throwing operation, the drainage plate 40 automatically guides and adjusts the air flow in the air duct to ensure the uniform air volume at the air outlet. At the same time, the reasonable design of the sizes of the air inlet and the air outlet and the air duct area also helps to maintain the uniformity of the air field.

[0027] Air volume distribution: The optimized pipe assembly 2 layout can automatically and reasonably distribute the air volume to ensure that the left and right two seedling blowing mechanisms 4 obtain uniform air volume supply and guarantee the uniformity of the seedling throwing operation.

[0028] Through the above specific implementation manners, the seedling throwing machine air field distribution method and device of the present invention can effectively achieve the purpose of precisely controlling the seedling throwing distance, the seedling throwing area, and improving the seedling throwing uniformity, and provide strong support for agricultural production.

[0029] The technologies not described above are the common general knowledge of those skilled in the art. The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A wind field distribution device for a rice seedling throwing machine, wherein a fan (1) is connected to a pipeline assembly (2), and the pipeline assembly (2) is connected to a rice seedling blowing mechanism (4), characterized in that: A flexible connection sleeve (3) is installed between the pipeline assembly (2) and the rice-blowing mechanism (4), and a lifting member (5) is installed on the rice-blowing mechanism (4). The lifting member (5) drives the rice-blowing mechanism (4) to pitch up and down, thereby adjusting the pitch angle of the air outlet of the rice-blowing mechanism (4).

2. The wind field distribution device of the rice-throwing machine according to claim 1, characterized in that: An air guide plate assembly (6) is installed on the air outlet of the rice seedling blowing mechanism (4), and the air guide plate assembly (6) controls the left and right deflection angle of the air outlet of the rice seedling blowing mechanism (4); and comprises an air guide motor (7), and the air guide motor (7) drives the air guide plate assembly (6) to swing left and right to adjust the left and right deflection angle of the air outlet of the rice seedling blowing mechanism (4); The air guide plate assembly (6) comprises at least two air guide plates (60), a driven air guide gear (62) and an air guide rack (61); the air guide plate (60) is connected to the driven air guide gear (62); an active air guide gear (63) is mounted on the guide motor (7); the driven air guide gear (62) is meshed with teeth on the upper surface of the air guide rack (61); and the active air guide gear (63) is meshed with teeth on the lower surface of the air guide rack (61).

3. The wind field distribution device of the rice-throwing machine according to claim 2, characterized in that: In the air duct formed between the air inlet (42) and the air outlet (41) of the rice seedling blowing mechanism, a fan-shaped flow guide plate (40) is installed, the fan-shaped angle of the flow guide plate (40) is 30°-60°, and the spacing between the flow guide plates decreases along the wind direction.

4. The wind field distribution device for a rice seedling throwing machine according to claim 3, characterized in that: The width (W1) of the air inlet of the rice-blowing mechanism is smaller than the width (W2) of the air outlet of the rice-blowing mechanism, the height (L1) of the air inlet of the rice-blowing mechanism is larger than the height (L2) of the air outlet of the rice-blowing mechanism, and the area of ​​the air inlet (42) of the rice-blowing mechanism is larger than the area of ​​the air outlet (41) of the rice-blowing mechanism; and the air duct area of ​​the rice-blowing mechanism (4) gradually shrinks linearly.

5. The wind field distribution device for a rice seedling throwing machine according to claim 4, characterized in that: The pipeline assembly (2) comprises a longitudinal pipeline (20) and a transverse pipeline (21), wherein two ends of the longitudinal pipeline (20) are respectively connected to the fan (1) and the middle section of the transverse pipeline (21), and two ends of the transverse pipeline (21) are respectively connected to the left and right rice seedling blowing mechanisms (4).

6. The wind field distribution device for a rice seedling throwing machine according to claim 5, characterized in that: The fan (1) is a blower, a single-channel fan or a ducted fan.

7. A method for distributing wind field of a rice-throwing machine, implemented based on a wind field distribution device of a rice-throwing machine according to claim 6, characterized in that: The following steps are involved: Step 1: driving the rice seedling blowing mechanism (4) to pitch by means of the lifting member (5), and adjusting the pitch angle of the air outlet to control the rice seedling throwing distance; Step 2: using the air guide motor (7) to drive the air guide plate assembly (6) to swing left and right, and adjusting the air outlet angle to control the area of ​​the seedling throwing region; Step 3: using the guide plate (40) to guide the airflow in the air duct, and optimizing the uniformity of the air volume at the air outlet by combining the matching design of the sizes of the air inlet (42) and the air outlet (41); Step 4: The air volume is distributed through the layout of the longitudinal duct (20) and the transverse duct (21) to ensure that the wind pressure of the left and right rice seedling blowing mechanisms (4) is balanced.

8. The wind field distribution method of the rice transplanter according to claim 7, characterized in that: In step 1, the pitch angle adjustment range is -15° to +30°, with an accuracy of ±1°.

9. The wind field distribution method of the rice transplanter according to claim 8, characterized in that: In step 2, the swing angle of the air guide plate assembly (6) is ±45°, and the rotation speed of the air guide motor (7) is controlled by a PID algorithm to achieve precise deflection.

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