Seedling feeding arm for rice transplanter

Abstract

The seedling feeding arm comprises a stand column and a driving mechanism for driving the stand column to rotate, a telescopic part is hinged to the upper end of the stand column, a supporting part is hinged to the stand column, the upper end of the supporting part is movably connected with the telescopic part, a mounting plate is connected to the telescopic part, and a grabbing mechanism is mounted on the mounting plate; the grabbing mechanism comprises a first hydraulic cylinder mounted on the mounting plate, a transverse plate connected to the telescopic end of the first hydraulic cylinder, a plurality of partition plates connected to the bottom face of the transverse plate, transmission rods rotationally connected to all the partition plates, a first motor in transmission connection with the transmission rods and guide rods connected to all the partition plates, and the distances between the adjacent partition plates are the same. The transmission rod is divided into a plurality of equal-length small sections through the partition plates, reverse threads are arranged on the two sides of each small section of the transmission rod, the side threads are connected with clamping plates, and the clamping plates are connected with the guide rod in a sliding mode. And the first motor works to drive the two clamping plates between the two adjacent partition plates to move relatively, so that a plurality of rice seedlings are grabbed, and the grabbing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of rice transplanter technology, specifically to a seedling delivery arm for a rice transplanter. Background Technology

[0002] A rice transplanter is an agricultural machine that plants rice seedlings into paddy fields. When it is working, it uses mechanical claws to take several rice seedlings from the seedbed and deliver them to the transplanting section, where the transplanting section plants the rice seedlings into the soil in the field.

[0003] However, the following problems exist when transporting rice seedlings to the transplanting section: (1) Only one or a small number of rice seedlings can be grabbed each time, resulting in low efficiency in transporting rice seedlings to the transplanting section; (2) When grabbing rice seedlings, it is difficult to adjust the distance that the gripper can reach, making it difficult to grab rice seedlings over a longer distance, and after grabbing rice seedlings... Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a seedling delivery arm for a rice transplanter, thereby solving the problems mentioned in the background section above.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0006] A seedling delivery arm for a rice transplanter includes a column and a drive mechanism for rotating the column. A telescopic section is hinged to the upper end of the column, and a support section is hinged to the column. The upper end of the support section is movably connected to the bottom surface of the telescopic section. An L-shaped mounting plate is connected to the telescopic section, and a gripping mechanism is mounted on the mounting plate. The gripping mechanism includes a first hydraulic cylinder mounted on the mounting plate, a horizontal plate connected to the telescopic end of the first hydraulic cylinder, several partitions connected to the bottom surface of the horizontal plate, a transmission rod rotatably connected to all the partitions, a first motor mounted on one end of the horizontal plate and driven by the transmission rod, and guide rods connected to all the partitions. The spacing between adjacent partitions is the same. The partitions divide the transmission rod into several equal-length segments. Each segment of the transmission rod has reverse threads on both sides, and each segment of the transmission rod has a clamping plate threaded to both sides. The clamping plates are slidably connected to the guide rod, and the distance from the two clamping plates on the same segment of the transmission rod to the center of that segment is the same.

[0007] Preferably, the drive mechanism includes a second motor, a transmission shaft connected to the second motor via a coupling, a main gear connected to the transmission shaft, and a secondary gear connected to the column, wherein the main gear and the secondary gear mesh.

[0008] The above technical solution controls the second motor to work, drives the transmission shaft to rotate, and drives the column to rotate through the cooperation of the main gear and the auxiliary gear.

[0009] Preferably, the telescopic part is a second hydraulic cylinder, one end of which is hinged to the column, and the telescopic end of the second hydraulic cylinder is connected to the mounting plate.

[0010] In the above technical solution, the second hydraulic cylinder can adjust the position of the gripping mechanism to grip rice seedlings at different distances.

[0011] Preferably, the support part is a third hydraulic cylinder, one end of which is hinged to the column, and the telescopic end of the third hydraulic cylinder is movably connected to the bottom surface of the second hydraulic cylinder.

[0012] In the above technical solution, the operation of the third hydraulic cylinder can adjust the angle of the second hydraulic cylinder so that the gripping mechanism can be at the optimal gripping angle.

[0013] Preferably, the lower part of each of the two clamps between two adjacent partitions is connected to a rubber block, and the two rubber blocks are arranged opposite each other.

[0014] The above-mentioned technical solution uses rubber blocks that are elastic and soft, which can reduce damage to rice seedlings.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] The drive mechanism controls the rotation of the column, adjusting the direction of the gripping mechanism. The telescopic part adjusts the distance the gripping mechanism can reach, facilitating the grabbing of rice seedlings from a greater distance. The first hydraulic cylinder raises and lowers the gripping mechanism, while the first motor rotates the transmission rod. As the transmission rod rotates, the two clamping plates between adjacent partitions move relative to each other, thus grabbing rice seedlings. Several seedlings can be grabbed at a time, improving gripping efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the present invention;

[0018] Figure 2 A schematic diagram of the grasping mechanism;

[0019] Figure 3 This is a schematic diagram of the present invention installed on a rice transplanter;

[0020] In the diagram: 1-Column, 2-Mounting plate, 3-First hydraulic cylinder, 4-Horizontal plate, 5-Partition plate, 6-Transmission rod, 7-First motor, 8-Guide rod, 9-Clamping plate, 10-Second motor, 11-Main gear, 12-Secondary gear, 13-Second hydraulic cylinder, 14-Third hydraulic cylinder, 15-Rubber block, 16-Rice transplanter, 17-Seedling tray, 18-Transplanting section. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1

[0023] Please see Figure 1-3 A seedling delivery arm for a rice transplanter includes a column 1 and a drive mechanism for rotating the column. The column is rotatably mounted on the rice transplanter 16, and the drive mechanism is also mounted on the rice transplanter 16. Specifically, the drive mechanism includes a second motor 10 mounted on the rice transplanter, a transmission shaft connected to the second motor via a coupling, a main gear 11 connected to the transmission shaft, and a secondary gear 12 connected to the column. The main gear 11 and the secondary gear 12 mesh. Controlling the second motor 10 to operate drives the transmission shaft to rotate, and through the cooperation of the main gear 11 and the secondary gear 12, drives the column 1 to rotate.

[0024] The upper end of the column 1 is hinged to a telescopic part, and a support part is hinged to the column 1. The upper end of the support part is movably connected to the bottom surface of the telescopic part. Specifically, the telescopic part is a second hydraulic cylinder 13, and the support part is a third hydraulic cylinder 14. One end of the second hydraulic cylinder 13 is hinged to the column 1, and the telescopic end of the second hydraulic cylinder 13 is connected to a mounting plate 2. One end of the third hydraulic cylinder 14 is hinged to the column 1, and the telescopic end of the third hydraulic cylinder 14 is movably connected to the bottom surface of the second hydraulic cylinder 13.

[0025] A gripping mechanism is installed on the mounting plate 2. The gripping mechanism includes a first hydraulic cylinder 3 mounted on the mounting plate, a horizontal plate 4 connected to the telescopic end of the first hydraulic cylinder, several partitions 5 connected to the bottom surface of the horizontal plate, a transmission rod 6 rotatably connected to all the partitions, a first motor 7 mounted on one end of the horizontal plate and connected to the transmission rod, and guide rods 8 connected to all the partitions. The spacing between adjacent partitions 5 is the same. The partitions 5 divide the transmission rod 6 into several equal-length segments. Each segment of the transmission rod 6 has reverse threads on both sides, and each segment of the transmission rod 6 is threadedly connected to clamps 9 on both sides. The clamps 9 are slidably connected to the guide rods 8. The distance from the two clamps 9 on the same segment of the transmission rod to the center of the segment is the same, and the position of the clamps on each segment of the transmission rod is also the same, so that when the transmission rod rotates, the two clamps on all segments of the transmission rod move the same distance and can grip different rice seedlings at the same time.

[0026] The working principle of this embodiment is as follows:

[0027] The rotation of the column 1 controlled by the drive mechanism adjusts the direction of the gripping mechanism. The extension and retraction of the second hydraulic cylinder 13 adjusts the distance the gripping mechanism can reach, facilitating the gripping of rice seedlings from a greater distance. The extension and retraction of the third hydraulic cylinder 14 adjusts the angle of the gripping mechanism and provides support for the second hydraulic cylinder 13. The operation of the first hydraulic cylinder 3 raises and lowers the gripping mechanism, bringing it closer to the rice seedlings. The operation of the first motor 7 drives the transmission rod 6 to rotate. When the transmission rod 6 rotates, the two clamping plates 9 between adjacent partitions 5 move relative to each other, thereby gripping the rice seedlings. Several seedlings can be gripped at a time, improving gripping efficiency. After the rice seedlings are gripped, the column 1 of the drive mechanism rotates again to place the seedlings on the transplanting section 18.

[0028] The rice transplanter 16, seedling tray 17, and transplanting section 18 described in this embodiment are all existing technologies and are not within the protection scope of this embodiment. The problem solved by this embodiment is: how to deliver rice seedlings from the seedling tray to the transplanting section. Therefore, this embodiment will not describe the structure and principle of the rice transplanter, seedling tray, and transplanting section in detail.

[0029] Example 2

[0030] The difference between this embodiment and Embodiment 1 is that a rubber block 15 is connected to the lower part of each of the two clamping plates 9 between adjacent partitions, and the two rubber blocks 15 are arranged opposite each other. The rubber blocks are elastic and soft, which can reduce damage to rice seedlings.

[0031] It should be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A seedling delivery arm for a rice transplanter, characterized in that: It includes a column (1) and a drive mechanism for driving the column to rotate. The upper end of the column (1) is hinged with a telescopic part and a support part is hinged on the column (1). The upper end of the support part is movably connected to the bottom surface of the telescopic part. An L-shaped mounting plate (2) is connected to the telescopic part and a gripping mechanism is installed on the mounting plate (2). The gripping mechanism includes a first hydraulic cylinder (3) mounted on a mounting plate, a horizontal plate (4) connected to the telescopic end of the first hydraulic cylinder, several partitions (5) connected to the bottom surface of the horizontal plate, a transmission rod (6) rotatably connected to all the partitions, a first motor (7) mounted on one end of the horizontal plate and connected to the transmission rod, and a guide rod (8) connected to all the partitions. The spacing between adjacent partitions (5) is the same. The transmission rod (6) is divided into several equal segments by the partitions (5). Each segment of the transmission rod (6) has reverse threads on both sides, and each segment of the transmission rod (6) is threaded with a clamping plate (9) on both sides. The clamping plate (9) is slidably connected to the guide rod (8). The distance from the two clamping plates (9) on the same segment of the transmission rod to the center of the segment is the same.

2. The rice transplanter feeding arm according to claim 1, characterized in that: The drive mechanism includes a second motor (10), a transmission shaft connected to the second motor via a coupling, a main gear (11) connected to the transmission shaft, and a secondary gear (12) connected to the column, wherein the main gear (11) and the secondary gear (12) mesh.

3. The rice transplanter feeding arm according to claim 2, characterized in that: The telescopic part is a second hydraulic cylinder (13), one end of which is hinged to the column (1), and the telescopic end of the second hydraulic cylinder (13) is connected to the mounting plate (2).

4. The rice transplanter feeding arm according to claim 3, characterized in that: The support part is a third hydraulic cylinder (14), one end of which is hinged to the column (1), and the telescopic end of the third hydraulic cylinder (14) is movably connected to the bottom surface of the second hydraulic cylinder (13).

5. A rice transplanter feeding arm according to any one of claims 1-4, characterized in that: Rubber blocks (15) are connected to the lower part of the two clamps (9) between the two adjacent partitions, and the two rubber blocks (15) are arranged opposite each other.

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