A mud type seedling transplanter capable of inserting seedlings of various sizes

Abstract

This utility model discloses a splash-proof rice transplanter capable of transplanting seedlings of various sizes. It includes a frame, with a seedling-grabbing structure installed at one end of the frame. A drive motor is installed on one side of the top of the frame, and a drive rod is fixed to the output end of the drive motor. One end of the drive rod is rotatably connected to a transplanting rod, and one end of the transplanting rod is fixed with a transplanting claw by screws. This utility model redesigns the clamping angle of the separating claw, the length of the swing arm of the gripping part, and the swing amplitude of the transplanting claw. This increases the opening angle by 10° compared to traditional rice transplanters. With the increased opening, the arc length for grasping seedlings is 4-5mm, allowing the separating claw to grasp larger seedlings. For smaller seedlings, due to the opening and the rotation of the separating claw, they will be clamped at a relatively rear position within the clamping opening. The small seedlings can still be clamped and separated by contact and pressure with a sponge block.

Description

Technical Field

[0001] This utility model relates to the field of rice transplanting equipment technology, specifically a splash-proof rice transplanter that can transplant rice seedlings of various sizes. Background Technology

[0002] A mountain rice transplanter is an agricultural machine used for transplanting rice seedlings in areas with complex terrain such as mountains and hills.

[0003] For rice seedlings suitable for transplanting, the seedling age is 3.5-4 leaves, the height is about 15 cm, and the diameter is about 2-5 mm. In some mountainous areas, rice seedlings are intercropped with rapeseed during the spring transplanting season. The rapeseed must be harvested before transplanting, so the transplanting time will be relatively delayed. As a result, the seedlings have been cultivated in the nursery for too long and have grown into large plants, generally about 30 cm in height and 4-5 mm in diameter.

[0004] Ordinary machines are not good at picking up large seedlings, and the planting depth of large seedlings needs to be increased to 3-4cm. If the planting depth is too shallow, the seedlings will tilt, affecting the planting efficiency and planting effect.

[0005] A search revealed a rice seedling transplanter disclosed in patent application publication number CN111903295A, which includes a traction mechanism and a frame, with the frame installed at the rear end of the traction mechanism; the frame is equipped with a plurality of seedling carriers and a seedling transplanting mechanism corresponding to each seedling carrier, the seedling transplanting mechanism including a planting component; all the seedling carriers can synchronously perform periodic reciprocating translational movements relative to the frame within a set range, and the translational movements of the seedling carriers have regular intermittent characteristics.

[0006] Although this rice transplanter can transplant large seedlings, it cannot be used for small seedlings at the same time, and the mobile platform of the transplanter is not convenient to use in complex terrain. Utility Model Content

[0007] The purpose of this utility model is to provide a splash-proof rice transplanter that can transplant seedlings of different sizes. By optimizing the clamping joint between the separating claw and the transplanting claw, as well as the transplanting depth, this rice transplanter can not only separate and transplant small seedlings, but also be suitable for transplanting large seedlings.

[0008] To achieve the above objectives, this utility model provides the following technical solution: a splash-proof rice transplanter capable of transplanting seedlings of various sizes, comprising a frame, a seedling gripping structure installed at one end of the frame, a drive motor installed on one side of the top of the frame, a drive rod fixed to the output end of the drive motor, a transplanting rod rotatably connected to one end of the drive rod, a transplanting claw fixed to one end of the transplanting rod by screws, and a limiting structure for limiting the movement of the transplanting claw on one side of the frame;

[0009] The seedling grabbing structure includes a swing arm, and a rotating motor is fixed to one side of the frame by screws. The output end of the rotating motor is fixedly connected to the middle of the swing arm, and seedling separating claws are provided at both ends of the swing arm.

[0010] Preferably, the limiting structure includes a first connecting rod, one end of which is rotatably connected to the frame, and the other end of which is rotatably connected to a second connecting rod, one end of which is rotatably connected to the rice transplanting pole.

[0011] Preferably, the seedling separating claw includes a base and a claw body, and the claw body is fixedly connected to the swing rod.

[0012] Preferably, the claw body is provided with a gripping end at one end near the swing arm, and the distance between the gripping end and the rotation axis of the swing arm is set to 27±2mm.

[0013] Preferably, a sponge is fixed to one side of the base, and the sponge and one side of the claw body form a clamping opening for gripping the seedling, and the angle of the clamping opening is set to 70±2°.

[0014] Preferably, the distance between the rotation axis at the connection between the drive rod and the transplanting rod and the tip of the transplanting claw is set to 185±2cm, and the distance between the tip of the transplanting claw and the bottom of the frame when the transplanting claw swings to the lowest position of the circumference is 36±2cm.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model redesigns the clamping angle of the separating claw, the length of the swing arm of the gripping part, and the swing amplitude of the transplanting claw, so that the opening angle is 10° wider than that of the traditional rice transplanter. After the opening is widened, the arc length of the seedling gripping is 4-5mm, which allows the separating claw to grip large seedlings. For smaller seedlings, due to the opening and the rotation of the separating claw, they will be clamped in a relatively rear position of the clamping opening. The sponge block can then be used to press and clamp the small seedlings, which can still be separated.

[0017] 2. This rice transplanter is small in size, which not only enables the separation and transplanting of seedlings of different sizes, but also allows it to work in complex environments, making it especially suitable for transplanting rice in mountainous areas. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the seedling-grabbing structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the claw body before and after optimization of this utility model;

[0021] Figure 4 This is a schematic diagram illustrating the effect of changing the length of the rice transplanter pole on the trajectory of the claw tip.

[0022] Figure 5 This is a schematic diagram of the claw tip trajectory of the rice transplanter of this utility model;

[0023] Figure 6 This is a schematic diagram showing the position of the rice transplanter claw of this utility model in the entire rice transplanter.

[0024] In the diagram: 1. Frame; 2. Seedling grabbing structure; 3. Drive motor; 4. Drive rod; 5. Transplanting rod; 6. Transplanting claw; 7. Limiting structure; 201. Swing rod; 202. Rotating motor; 203. Seedling separating claw; 701. First connecting rod; 702. Second connecting rod; 2031. Base; 2032. Claw body; 2033. Grabbing end; 204. Sponge; 205. Clamping opening. Detailed Implementation

[0025] 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.

[0026] Please see Figure 1-6 This utility model provides a technical solution: a mud-splashing rice transplanter that can transplant seedlings of different sizes, including a frame 1, a seedling gripping structure 2 installed at one end of the frame 1, a drive motor 3 installed on one side of the top of the frame 1, a drive rod 4 fixed at the output end of the drive motor 3, a transplanting rod 5 rotatably connected to one end of the drive rod 4, a transplanting claw 6 fixed to one end of the transplanting rod 5 by screws, and a limiting structure 7 for limiting the movement of the transplanting claw 6 on one side of the frame 1;

[0027] When the drive motor 3 starts, the drive rod 4 rotates, causing the rice transplanter 5 to move cyclically. By setting the limit structure 7, the stability of the rice transplanter 5 moving within a fixed range is improved.

[0028] The seedling grabbing structure 2 includes a swing arm 201. A rotating motor 202 is fixed to one side of the frame 1 by screws. The output end of the rotating motor 202 is fixedly connected to the middle part of the swing arm 201. Both ends of the swing arm 201 are provided with seedling separating claws 203.

[0029] Start the rotating motor 202, the swing arm 201 rotates, causing the two seedling separating claws 203 to rotate around the middle of the swing arm 201, and to pick up the seedlings on the rice transplanter.

[0030] The limiting structure 7 includes a first connecting rod 701, one end of which is rotatably connected to the frame 1, and the other end of which is rotatably connected to a second connecting rod 702. One end of the second connecting rod 702 is rotatably connected to the rice transplanting pole 5. When the drive rod 4 drives the rice transplanting pole 5 to swing, the first connecting rod 701 and the second connecting rod 702 rotate.

[0031] The seedling divider 203 includes a base 2031 and a claw body 2032, and the claw body 2032 is fixedly connected to the swing rod 201.

[0032] The claw body 2032 is provided with a gripping end 2033 at one end near the swing arm 201, and the distance between the gripping end 2033 and the rotation axis of the swing arm 201 is set to 27±2mm.

[0033] like Figure 3 The diagram shows a comparison of the positions of the traditional claw 2032 and the claw 2032 of this device. The darker part represents the improved position of the claw 2032. The angle of the clamping opening 205 is expanded outward by 10°, and the radius r of the gripping part and the center of rotation is 27.21 mm. After the opening is enlarged, the arc length LΔ for gripping the seedling is 4-5 mm, which allows the separating claw 203 to grip large seedlings. For smaller seedlings, due to the opening and the rotation of the separating claw 203, they will be clamped at a relatively rear position of the clamping opening 205. The sponge 204 will contact and press them together, and the small seedlings can still be clamped and separated.

[0034] A sponge 204 is fixed to one side of the base 2031. The sponge 204 and one side of the claw body 2032 form a clamping opening 205 for gripping the seedling. The angle of the clamping opening 205 is set to 70±2°.

[0035] The distance between the rotation axis at the connection between the drive rod 4 and the rice transplanter 5 and the tip of the rice transplanter 6 is set to 185±2cm. When the rice transplanter 6 swings to the lowest position of the circumference, the distance between the tip of the rice transplanter 6 and the bottom of the frame 1 is 36±2cm.

[0036] like Figure 5 As shown, the general planting depth is 2cm, which is increased to 3-4cm for larger seedlings. The seedlings need to be planted deeper to prevent them from tilting due to shallow planting. Using a computer to analyze the linkage mechanism, by changing the input conditions such as the length of the links while keeping the trajectory constant, the velocity and acceleration can be easily calculated. Therefore, by keeping the length of the fixed link constant and changing the lengths of the other links, the change in the position of the lowest point of the planting claw 6's trajectory can be determined.

[0037] Where R2 is the radius of rotation of the drive rod 4, R4 is the radius of rotation of the pendulum rod 201, and R5 is the radius of rotation of the transplanting rod 5. When the lengths of R2, R3, R4, and R5 change from ±2% to ±5%, the change in the lowest point of the claw tip trajectory is almost linear. With other rods unchanged, the effect of changing R2 on the lowest point of the transplanting claw 6's trajectory is ΔL2 = 0.75ΔX; with other rods unchanged, the effect of changing R5 on the lowest point of the trajectory is ΔL5 = 0.8ΔX.

[0038] For the original transplanting claw 6, other rods can be kept unchanged, and the length of R5 can be changed to increase the transplanting depth. The transplanting depth needs to be increased by 1-2cm based on the original transplanting depth. The initial choice is to increase by 1.5cm. Therefore, ΔX=ΔL5 / 0.8=15 / 0.8=18.75mm. By optimizing the length of R5, the seedling insertion depth is 36.36mm, which is between 30-40mm, ensuring that large seedlings can be transplanted. Figure 6 The overall structure of the rice transplanter is designed to prevent splashing by fixing mudguards.

[0039] 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 splash-proof rice transplanter capable of transplanting seedlings of various sizes, characterized in that: Includes a frame (1), one end of which is equipped with a seedling grabbing structure (2), a drive motor (3) is installed on one side of the top of the frame (1), a drive rod (4) is fixed to the output end of the drive motor (3), a seedling transplanting rod (5) is rotatably connected to one end of the drive rod (4), a seedling transplanting claw (6) is fixed to one end of the seedling transplanting rod (5) by screws, and a limiting structure (7) is provided on one side of the frame (1) to limit the movement of the seedling transplanting claw (6); The seedling grabbing structure (2) includes a swing arm (201). A rotating motor (202) is fixed to one side of the frame (1) by screws. The output end of the rotating motor (202) is fixedly connected to the middle of the swing arm (201). Both ends of the swing arm (201) are provided with seedling separating claws (203).

2. The anti-splash rice transplanter for transplanting seedlings of various sizes according to claim 1, characterized in that: The limiting structure (7) includes a first connecting rod (701), one end of which is rotatably connected to the frame (1), and the other end of which is rotatably connected to a second connecting rod (702), one end of which is rotatably connected to the rice transplanting pole (5).

3. The anti-splash rice transplanter for transplanting seedlings of various sizes according to claim 2, characterized in that: The seedling divider (203) includes a base (2031) and a claw body (2032), and the claw body (2032) is fixedly connected to the swing rod (201).

4. The anti-splash rice transplanter for transplanting seedlings of different sizes according to claim 3, characterized in that: The claw body (2032) is provided with a gripping end (2033) at one end near the swing arm (201), and the distance between the gripping end (2033) and the rotation axis of the swing arm (201) is set to 27±2mm.

5. A splash-proof rice transplanter for transplanting seedlings of various sizes according to claim 4, characterized in that: A sponge (204) is fixed to one side of the base (2031), and the sponge (204) and one side of the claw (2032) form a clamping opening (205) for gripping the seedling. The angle of the clamping opening (205) is set to 70±2°.

6. A splash-proof rice transplanter for transplanting seedlings of various sizes according to claim 5, characterized in that: The distance between the rotation axis of the drive rod (4) and the rice transplanter (5) and the tip of the rice transplanter (6) is set to 185±2cm. When the rice transplanter (6) swings to the lowest position of the circumference, the distance between the tip of the rice transplanter and the bottom of the frame (1) is 36±2cm.

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