Rice seedling throwing device

By introducing an adjustable throwing mechanism into the rice transplanter, the angle of the guide plate can be automatically adjusted, solving the problem of inconvenient adjustment of the guide plate tilt angle and improving the uniformity of seedling distribution and planting efficiency.

CN223639705UActive Publication Date: 2025-12-09刘苹
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Patent Information

Application Number
CN202520007097.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-02
Publication Date
2025-12-09
Estimated Expiration
2035-01-02

AI Technical Summary

Technical Problem

The existing rice transplanter has an inconvenient guide plate tilt angle adjustment, which makes adjusting the seedling spacing time-consuming and laborious, affecting planting efficiency.

Method used

An adjustable seedling throwing mechanism is adopted, including a main rotating shaft, a vertical helical gear, bearings, a mounting rod, a horizontal helical gear, and a drive motor. The motor drives the automatic angle adjustment of multiple adjustable guide plates, simplifying the adjustment process of the guide plates.

Benefits of technology

It achieves uniform and efficient distribution of seedlings, improves the practicality and operational efficiency of rice transplanters, and adapts to different planting needs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the field of rice seedling slinging, and discloses a rice seedling slinging device which comprises a seedling slinging support, a shell is fixedly installed on the front side of the seedling slinging support, a plurality of fixed guide plates are installed on the inner side wall of the shell at equal intervals in an array mode, and adjusting guide plates are arranged on the bottom faces of the multiple fixed guide plates; a protective shell is fixedly mounted on the front side of the shell, a driving motor drives a main driving gear to rotate, the main driving gear rotates to drive two first transverse bevel gears to rotate in opposite directions, and then an adjusting guide plate rotates under cooperative driving of a mounting rotating rod, a second transverse bevel gear and a vertical bevel gear. Finally, the multiple adjusting guide plates are in a fan-shaped opening state, seedling throwing planting operation of seedlings is facilitated, the seedlings can be more evenly and efficiently distributed in the field, the adjusting guide plates of the device have the capacity of rotating in the opposite directions in the follow-up operation and being in the fan-shaped opening state, and the adjusting guide plates are convenient and rapid to adjust.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of rice throwing seedling, and particularly relates to a rice throwing seedling device. BACKGROUND

[0002] The rice throwing seedling machine is an agricultural machine for rice planting, which is used for quickly and uniformly throwing seedlings into a paddy field to improve planting efficiency and reduce labor cost. The machine is usually composed of a seedling supplying system, a seedling throwing mechanism, a power system and a walking system. The seedling supplying system is responsible for conveying rice seedlings in a seedling tray to the seedling throwing mechanism. The seedling throwing mechanism accurately throws the seedlings into the field through rotation or vibration. Through such mechanized operation, the rice throwing seedling machine effectively speeds up the rice planting and improves the overall efficiency of agricultural production.

[0003] The existing rice throwing seedling machine, such as Hunan Dragon Boat 2ZPY-14A rice ordered throwing seedling machine, relies on multiple guide plates to achieve effective discharge and throwing operation of rice. The inclination angle of the guide plate plays a decisive role in the spacing between seedlings during throwing, thereby affecting the planting density of the seedlings.

[0004] However, the inclination angle of the guide plate of the throwing seedling machine is inconvenient to adjust. When adjusting the angle, the operator usually needs to twist the bolts one by one to complete the adjustment. This method is not only time-consuming but also laborious. Therefore, a rice throwing seedling device is provided. CONTENT OF THE INVENTION

[0005] The purpose of the present application is to solve the above-mentioned problems and provide a rice throwing seedling device.

[0006] The technical solution adopted by the present application is as follows: a rice throwing seedling device, comprising a seedling throwing support, a housing is fixedly installed on the front side of the seedling throwing support, a plurality of fixed guide plates are installed on the inner side wall of the housing at equal intervals, and an adjusting guide plate is arranged on the bottom surface of each fixed guide plate, a protection housing is fixedly installed on the front side of the housing, and an adjusting seedling throwing mechanism connected with the adjusting guide plate is arranged on the protection housing.

[0007] The adjusting seedling throwing mechanism includes a main rotating shaft, a vertical helical gear, bearings, a mounting rod, a first horizontal helical gear, a second horizontal helical gear, a drive motor, and a main drive gear. The main rotating shaft is fixedly installed on the left side of the adjusting guide plate. One end of the main rotating shaft passes through one side of the housing and extends into the interior of the protective housing. A vertical helical gear is fixedly installed at the end of the main rotating shaft extending into the protective housing. Two bearings are symmetrically fixedly installed on the inner sidewall of the protective housing, and a mounting rod is fixedly installed in the middle of each of the two bearings. A first horizontal helical gear is fixedly installed on the outer surface of the adjacent ends of the mounting rods. A second horizontal helical gear, corresponding to the vertical helical gear, is fixedly installed on the outer surface of the mounting rod. The second horizontal helical gear meshes with the vertical helical gear. A drive motor is fixedly installed on the front side of the protective housing. The drive end of the drive motor extends into the interior of the protective housing. A main drive gear is fixedly installed at the drive end of the drive motor, and the main drive gear meshes with the first horizontal helical gear.

[0008] In a preferred embodiment, two U-shaped mounting brackets are fixedly installed on the side of the rice seedling throwing support, and the bottom surface of each of the two U-shaped mounting brackets is provided with fixing holes.

[0009] In a preferred embodiment, the inside of the rice-throwing support is equipped with a plurality of baffles arranged in an equally spaced array.

[0010] In a preferred embodiment, a connecting shaft is fixedly installed on the right side of the adjusting guide plate, and the end of the connecting shaft away from the adjusting guide plate passes through one side of the housing.

[0011] In a preferred embodiment, a sealing cover is fixedly installed on the top surface of the protective housing by bolts.

[0012] In a preferred embodiment, the adjusting guide plate is provided with an anti-stick layer inside.

[0013] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0014] 1. In this application, due to the adoption of the above-mentioned scheme, the drive motor drives the main drive gear to rotate. After the main drive gear rotates, it will drive the two transverse helical gears to rotate in opposite directions. This causes the adjusting guide plates to rotate under the coordinated drive of the mounting rod, the transverse helical gear, and the vertical helical gear. Ultimately, multiple adjusting guide plates will be in a fan-shaped open state, which facilitates the transplanting of seedlings and allows the seedlings to be distributed more evenly and efficiently in the field. The two sets of adjusting guide plates of this device have the ability to rotate in opposite directions and be in a fan-shaped open state in subsequent operations, making the adjustment of the adjusting guide plates convenient and quick, and effectively improving the practicality and operating efficiency of the transplanter. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this application;

[0016] Figure 2 This is a schematic diagram of the fixed guide plate structure of this application;

[0017] Figure 3 This is a schematic diagram of the internal structure of the protective casing of this application.

[0018] The markings in the diagram are: 1. Seedling throwing support; 2. Shell; 3. Fixed guide plate; 4. Adjusting guide plate; 5. Protective shell; 6. Adjusting seedling throwing mechanism; 601. Main rotating shaft; 602. Vertical helical gear; 603. Bearing; 604. Mounting rod; 605. Horizontal helical gear one; 606. Horizontal helical gear two; 607. Drive motor; 608. Main drive gear; 7. U-shaped mounting bracket; 8. Fixing hole; 9. Baffle; 10. Connecting shaft; 11. Sealing cover plate; 12. Anti-sticking layer. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the embodiments of this application. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0020] refer to Figure 1 , Figure 2 and Figure 3 A rice transplanting device includes a transplanting support 1, with multiple baffles 9 evenly spaced inside the support 1. Within the overall structure of the transplanter, a chain-driven conveyor rod is installed inside the support 1. This conveyor rod pushes a whole slab of rice seedlings placed on its surface forward, facilitating subsequent rice transplanting operations. Simultaneously, the specially designed baffles 9 precisely limit the seedlings, ensuring they remain in a suitable position for transplanting, thus guaranteeing the efficiency and accuracy of the transplanting operation and improving the overall quality and efficiency of the rice planting process. Furthermore, a motor-driven rotating rod is installed inside the support 1, in front of the conveyor rod. When the conveyor rod delivers the seedlings to this location, the seedlings detach from their original shape under the rotation of the rotating rod, further preparing for orderly transplanting. All components work together to optimize the transplanter's performance, meeting the actual needs of rice planting.

[0021] refer to Figure 1 , Figure 2A housing 2 is fixedly installed on the front side of the rice seedling throwing support 1. Multiple fixed guide plates 3 are installed in an array at equal intervals on the inner side wall of the housing 2, and an adjusting guide plate 4 is provided on the bottom surface of each of the multiple fixed guide plates 3. An anti-sticking layer 12 is provided inside the adjusting guide plate 4. The adjusting guide plate 4 is located below the fixed guide plate 3, which makes it easier to tilt the adjusting guide plate 4 to throw the rice seedlings in a suitable position. The anti-sticking layer 12 is a polytetrafluoroethylene (PTFE) coating. PTFE has a very low coefficient of friction and excellent anti-sticking performance, which can effectively prevent the seedlings from adhering to the surface of the guide plate and allow the seedlings to slide down more smoothly.

[0022] A fixed top guide plate is installed in the middle of the shell 2. Its function is to ensure that the seedlings can be discharged straight and to provide precise guidance for the seedling throwing operation. At the same time, there are six adjustable guide plates 4, which are divided into two groups of three. These two groups of adjustable guide plates 4 are operable and can rotate in opposite directions during subsequent operations, thus presenting a fan-shaped opening. This design greatly facilitates the seedling throwing operation, allowing the seedlings to be distributed more evenly and efficiently in the field. In addition, the number of adjustable guide plates 4 is not fixed and can be flexibly installed according to actual planting needs to adapt to different operating scenarios and planting requirements, thereby further optimizing the overall performance of the seedling thrower and improving the efficiency and quality of rice planting.

[0023] refer to Figure 1 , Figure 2 and Figure 3 A protective shell 5 is fixedly installed on the front side of the shell 2. A sealing cover 11 is fixedly installed on the top surface of the protective shell 5 by bolts. An adjusting seedling throwing mechanism 6 connected to the adjusting guide plate 4 is provided on the protective shell 5. The sealing cover 11 makes it easy for personnel to open it to maintain and repair the internal structure of the protective shell 5. The adjusting seedling throwing mechanism 6 facilitates the seedling throwing operation.

[0024] refer to Figure 1 , Figure 3 The adjusting seedling throwing mechanism 6 includes a main rotating shaft 601, a vertical helical gear 602, a bearing 603, a mounting rod 604, a first horizontal helical gear 605, a second horizontal helical gear 606, a drive motor 607, and a main drive gear 608. The main rotating shaft 601 is fixedly installed on the left side of the adjusting guide plate 4. One end of the main rotating shaft 601 passes through one side of the housing 2 and extends into the interior of the protective housing 5. A connecting shaft 10 is fixedly installed on the right side of the adjusting guide plate 4. The end of the connecting shaft 10 away from the adjusting guide plate 4 passes through one side of the housing 2. With the main rotating shaft 601 and the connecting shaft 10, the adjusting guide plate 4 can rotate at the bottom of the fixed guide plate 3, thus facilitating the throwing of seedlings to a suitable position for sowing.

[0025] refer to Figure 1 ,Figure 3 A vertical helical gear 602 is fixedly installed at one end of the main rotating shaft 601 that extends into the protective housing 5. Two bearings 603 are symmetrically fixedly installed on the inner sidewall of the protective housing 5, and a mounting rod 604 is fixedly installed in the middle of each of the two bearings 603. A transverse helical gear 605 is fixedly installed on the outer surface of the end of the mounting rod 604 that is close to each other. A transverse helical gear 606 corresponding to the vertical helical gear 602 is fixedly installed on the outer surface of the mounting rod 604. The transverse helical gear 606 meshes with the vertical helical gear 602. Since the transverse helical gear 606 meshes with the vertical helical gear 602, when the mounting rod 604 rotates, it is easy to drive the vertical helical gear 602 to rotate, thus facilitating the automatic angle adjustment of the guide plate 4.

[0026] refer to Figure 1 , Figure 2 and Figure 3 A drive motor 607 is fixedly installed on the front side of the protective housing 5. The drive end of the drive motor 607 extends into the interior of the protective housing 5. A main drive gear 608 is fixedly installed on the drive end of the drive motor 607. The main drive gear 608 is meshed with a transverse helical gear 605. The drive motor 607 facilitates the rotation of the main drive gear 608. When the main drive gear 608 rotates, it will drive the helical gear 605 to rotate. This will cause the two mounting rods 604 to rotate in one direction and the other direction, thus facilitating the angle adjustment of multiple adjustment guide plates 4.

[0027] refer to Figure 1 , Figure 2 and Figure 3 Two U-shaped mounting brackets 7 are fixedly installed on the side of the rice transplanter support 1, and the bottom surface of the two U-shaped mounting brackets 7 is provided with fixing holes 8. With the two U-shaped mounting brackets 7 and fixing holes 8, it is convenient for personnel to use bolts to install the rice transplanter support 1 on the rice transplanter vehicle, which facilitates the subsequent rice transplanting operation.

[0028] The implementation principle of a rice seedling throwing device embodiment of this application is as follows: The operator first uses the U-shaped mounting frame 7 to firmly install the seedling throwing support 1 on the rice seedling throwing vehicle body. Then, the whole seedling is placed on the surface of the conveying rod driven by the chain inside the seedling throwing support 1. At this time, as the rotating rod rotates, the whole seedling is separated from the overall shape and enters the shell 2 through the baffle 9. Then, the seedlings that have entered the shell 2 fall into the adjusting guide plate 4 under the guidance of the fixed guide plate 3, thereby carrying out the guided seedling throwing and planting operation to ensure that the seedlings can be sown at a suitable interval.

[0029] When it is necessary to adjust the spacing of the transplanted seedlings, the drive motor 607 in the transplanting mechanism 6 is first started. The drive motor 607 drives the main drive gear 608 to rotate. After the main drive gear 608 rotates, it drives the two horizontal helical gears 605 to rotate in opposite directions. This causes the adjusting guide plates 4 to rotate under the coordinated drive of the mounting rod 604, the horizontal helical gear 606, and the vertical helical gear 602. Finally, the multiple adjusting guide plates 4 are arranged in a fan-shaped opening state, which greatly facilitates the transplanting operation of seedlings and allows the seedlings to be distributed more evenly and efficiently in the field. Moreover, the number of adjusting guide plates 4 is not fixed and can be flexibly installed according to actual planting needs to adapt to different operating scenarios and planting requirements. The device has six adjusting guide plates 4, arranged in two groups of three. These two groups of adjusting guide plates 4 have the ability to rotate in opposite directions and be arranged in a fan-shaped opening state in subsequent operations, making the adjustment of the adjusting guide plates 4 convenient and quick. This effectively improves the practicality and operating efficiency of the transplanter and meets the diverse needs of rice planting.

[0030] The above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A rice seedling throwing device, comprising a seedling throwing support (1), characterized in that: The front side of the rice-throwing support (1) is fixedly installed with a housing (2), and multiple fixed guide plates (3) are installed in an array at equal intervals on the inner side wall of the housing (2). Adjustable guide plates (4) are provided on the bottom surface of the multiple fixed guide plates (3). A protective housing (5) is fixedly installed on the front side of the housing (2), and an adjusting rice-throwing mechanism (6) connected to the adjusting guide plate (4) is provided on the protective housing (5). The adjusting seedling throwing mechanism (6) includes a main rotating shaft (601), a vertical helical gear (602), a bearing (603), a mounting rod (604), a first horizontal helical gear (605), a second horizontal helical gear (606), a drive motor (607), and a main drive gear (608). The main rotating shaft (601) is fixedly installed on the left side of the adjusting guide plate (4). One end of the main rotating shaft (601) passes through one side of the housing (2) and extends into the interior of the protective housing (5). The vertical helical gear (602) is fixedly installed at the end of the main rotating shaft (601) extending into the interior of the protective housing (5). Two bearings (603) are symmetrically fixedly installed on the inner wall of the protective housing (5), and the two bearings (603) are... A mounting rod (604) is fixedly installed in the middle. A transverse helical gear (605) is fixedly installed on the outer surface of the end of the mounting rod (604) that is close to each other. A transverse helical gear (606) corresponding to the vertical helical gear (602) is fixedly installed on the outer surface of the mounting rod (604). The transverse helical gear (606) meshes with the vertical helical gear (602). A drive motor (607) is fixedly installed on the front side of the protective housing (5). The drive end of the drive motor (607) extends into the interior of the protective housing (5). A main drive gear (608) is fixedly installed on the drive end of the drive motor (607). The main drive gear (608) meshes with the transverse helical gear (605).

2. The rice transplanting device as described in claim 1, characterized in that: Two U-shaped mounting brackets (7) are fixedly installed on the side of the rice seedling throwing support (1), and the bottom surface of the two U-shaped mounting brackets (7) is provided with fixing holes (8).

3. The rice transplanting device as described in claim 1, characterized in that: The inside of the rice-throwing support (1) is equipped with multiple baffles (9) arranged in an equally spaced array.

4. The rice transplanting device as described in claim 1, characterized in that: A connecting shaft (10) is fixedly installed on the right side of the adjusting guide plate (4), and the end of the connecting shaft (10) away from the adjusting guide plate (4) passes through one side of the housing (2).

5. The rice transplanting device as described in claim 1, characterized in that: The top surface of the protective housing (5) is fixedly fitted with a sealing cover plate (11) by bolts.

6. The rice transplanting device as described in claim 1, characterized in that: The inside of the adjusting guide plate (4) is provided with an anti-stick layer (12).