A row-type rice transplanter for experimental fields

By designing a trellis-type rice transplanter, and utilizing an electric drive and gear and rack transmission system to achieve automated movement of the transplanter, the problems of low efficiency and inconsistent parameters in manual rice transplanting were solved, and efficient and standardized rice transplanting operations were realized in the experimental field.

CN224267378UActive Publication Date: 2026-05-26SUZHOU POLYTECHNIC INST OF AGRI

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU POLYTECHNIC INST OF AGRI
Filing Date
2025-07-11
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The current rice transplanting operation in the experimental fields relies on manual labor, which results in long operation cycles, low efficiency, high safety risks, and difficulty in ensuring the consistency of seedling parameters, thus affecting the scientific validity and credibility of the research results.

Method used

Design a trellis-type rice transplanter, including a ground rail, a self-propelled frame, a trellis, and a transplanter. Utilize an electric drive wheel, an electric lifting rod, and a gear and rack transmission system to achieve automated movement of the transplanter and precise transplanting of seedlings.

Benefits of technology

Significantly shorten the rice transplanting cycle, reduce manual labor intensity, improve the standardization of rice transplanting operations and the accuracy of scientific research data, and ensure the consistency of seedling parameters.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224267378U_ABST
    Figure CN224267378U_ABST
Patent Text Reader

Abstract

This utility model discloses a row-type rice transplanter for experimental fields. Several ground rails are arranged parallel to each other on the field ridges. The self-propelled frame has its own drive source and works with the ground rails to move along them. Two self-propelled frames are connected to both ends of the row frame, and each self-propelled frame can slide on the row frame to adjust the distance between the two self-propelled frames. The transplanter itself has a drive source and works with the row frame to move along it. This utility model can significantly shorten the transplanting cycle, reduce manual labor intensity and time costs, and reduce manual labor in high-temperature and high-intensity environments. It achieves full automation of the transplanting process, greatly improving the standardization of transplanting in experimental fields and the accuracy of scientific research data.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a row-type rice transplanter for experimental fields. Background Technology

[0002] Existing experimental fields are mostly small plots, with each experimental variety planted in only 15 square meters, and the plots are mostly laid out in a regular pattern of 3×5 meters. Under these circumstances, rice transplanting is entirely done manually, with a single transplanting cycle lasting 4-5 days. The workers responsible for this work find it difficult to adapt to the high-intensity field labor. Furthermore, manual transplanting uses the traditional method of using string lines to mark planting points, which is not only cumbersome but also prone to causing worker discomfort and safety risks in hot weather, and has extremely low efficiency. In addition, manual operation makes it difficult to ensure high consistency in parameters such as seedling spacing and depth, resulting in insufficient transplanting standardization and large dispersion in experimental data, affecting the scientific validity and credibility of the research results.

[0003] As agricultural research demands increasing precision and efficiency in its experiments, there is an urgent need to develop an automated rice transplanting device suitable for experimental fields. This would address the pain points of existing operational models, achieve standardization, precision, and efficiency in rice transplanting operations in experimental fields, and provide reliable technical support for agricultural research. Summary of the Invention

[0004] This utility model provides a row-type rice transplanter for experimental fields to solve the problems existing in the prior art.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A row-type rice transplanter for experimental fields includes:

[0007] Ground tracks, several ground tracks are arranged at intervals and parallel to each other on the ridges of the experimental field;

[0008] The self-propelled frame is equipped with its own drive source and works in conjunction with the ground rail to move on the ground rail;

[0009] A truss, with two self-propelled frames connected to both ends of the truss, and each self-propelled frame can slide on the truss to adjust the distance between the two self-propelled frames;

[0010] The rice transplanter has its own drive source and works with the frame to move on the frame.

[0011] Furthermore, the self-propelled frame includes a frame and drive wheels. Two drive wheels are mounted on the frame and cooperate with the ground rail. The drive wheels are equipped with motors, which serve as the drive source for the self-propelled frame.

[0012] Furthermore, the drive wheel is an electric steering wheel.

[0013] Furthermore, electric lifting rods are provided on both sides of the frame, and a drive wheel is provided at the free end of each electric lifting rod.

[0014] Furthermore, the self-propelled frame is equipped with pulleys, and the gantry is equipped with electric push rods and slide rails that cooperate with the pulleys. The electric push rods are connected to the self-propelled frame and push the self-propelled frame to slide on the gantry.

[0015] Furthermore, the frame is equipped with a rack, and the rice transplanter is equipped with a gear driven by an independent motor, the gear meshing with the rack.

[0016] Furthermore, the rice transplanter is equipped with a retainer, and the retainer is equipped with a guide pulley. The gear and the guide pulley are arranged vertically, the rack is located on the upper end surface of the frame, and the guide pulley is in contact with the lower end surface of the frame.

[0017] Furthermore, the guide pulley has a groove on its rolling surface, which engages with the frame.

[0018] This utility model has the following beneficial effects:

[0019] This invention can significantly shorten the rice transplanting cycle, reduce manual labor intensity and time costs, and reduce manual labor in high-temperature and high-intensity environments; it can realize the full automation of the rice transplanting operation, and greatly improve the standardization of rice transplanting in experimental fields and the accuracy of scientific research data. Attached Figure Description

[0020] Figure 1 This is a structural diagram of the present utility model.

[0021] Figure 2 This is a structural diagram of a self-propelled frame.

[0022] Figure 3 This is a structural diagram of an electric lifting pole driven by a lead screw mechanism.

[0023] Figure 4 This is a structural diagram of a rice transplanter. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings.

[0025] like Figures 1 to 4 This utility model relates to a row-type rice transplanter for experimental fields, comprising a ground track 1, a self-propelled frame 2, a row frame 3, and a rice transplanter 4.

[0026] On the ridges of the experimental field, several ground tracks 1 are arranged at intervals and parallel to each other, according to the layout of the experimental field. The ground tracks 1 are made of high-strength aluminum alloy material, which has the advantages of being lightweight, corrosion-resistant, and high-strength. They can effectively reduce the resistance of the self-propelled frame 2 during its movement and extend its service life.

[0027] The length of ground track 1 is determined according to the width of the experimental field, which is 15-18 meters wide. The span of the row-type rice transplanter is 15-18 meters. The experimental field is divided into two parts in the middle, with a drainage ditch in the middle. Each variety is 15 square meters, and each variety has 8 rows of rice transplanters. The row frame is equipped with a 4-row rice transplanter.

[0028] The ground rail 1 is fixed to the field ridge with anchor bolts. This fixing method is secure and can withstand the pressure and friction when the self-propelled frame 2 moves. At the same time, it is easy to disassemble and maintain, and convenient to move and rearrange between different experimental fields.

[0029] The self-propelled frame 2 consists of a frame 21 and drive wheels 22. The frame 21 is welded from high-strength steel to form a stable frame structure with high load-bearing capacity and resistance to deformation, which can ensure the stability of the self-propelled frame 2 during travel.

[0030] Two drive wheels 22 are installed on each side of the frame 21. The drive wheels 22 are electric steering wheels, each equipped with a 1-kilowatt motor as the drive source, and the motor is powered by a lithium battery. The drive wheels 22 support independent drive and precise speed control, and can achieve 180-degree rotation to meet the 90-degree flexible steering requirements during transfer, ensuring precise control of the walking direction.

[0031] Electric lifting rods 23 are also installed on both sides of the frame 21. The electric lifting rods 23 adopt a high-precision screw drive structure, which ensures smooth lifting and accurate positioning, with a lifting range of up to 50 cm. Each electric lifting rod 23 has a drive wheel 22 at its free lifting end. By controlling the extension and retraction of the electric lifting rod 23, the height of the frame 3 can be adjusted.

[0032] The truss 3 is constructed of high-strength, lightweight materials, ensuring structural rigidity while improving field mobility. To enable the self-propelled frame to adjust its position on the truss (suitable for experimental fields of different widths), the truss 3 is equipped with an electric actuator 32 and a slide rail 31 that works with pulleys. The electric actuator 32 is connected to the self-propelled frame 2 and pushes the self-propelled frame to slide on the truss.

[0033] A rack 33 is installed on the frame 3. The rack 33 meshes with the gear 40 on the rice transplanter 4. The gear 40 is driven to rotate by a motor, thus driving the rice transplanter 4 to move on the frame 3. During use, rice transplanting is carried out along the track 31. When it is necessary to change rows, the drive wheel 22 works to move two rows, and the rice transplanter performs reciprocating transplanting operations. When moving to another location, the rice transplanter does not move, but the drive wheel 22 works.

[0034] The gear and rack transmission method has the advantages of high transmission accuracy, smooth transmission, and strong load-bearing capacity. It can ensure the speed stability and positional accuracy of the rice transplanter 4 when it moves on the frame 3, thus providing a guarantee for the standardization and precision of rice transplanting operations.

[0035] A retainer 41 is installed on the rice transplanter 4, and a guide pulley 42 is provided on the retainer 41. The guide pulley 42 contacts the lower end face of the frame 3, serving to guide and stabilize the movement of the rice transplanter 4. The rolling surface of the guide pulley 42 has a groove, which cooperates with the frame 3 to effectively limit the lateral movement of the rice transplanter 4 on the frame 3, ensuring smooth movement of the rice transplanter 4 and avoiding instability. This dual-guidance design (gear and rack transmission and guide pulley cooperation) not only improves the stability of the rice transplanter 4 but also effectively reduces vibration and noise during movement, improving the quality of the rice transplanting operation.

[0036] The rice transplanter 4 is a mature existing structure, and this application will not elaborate on its structure and principle.

[0037] Driven by a motor, the drive wheels 22 of the self-propelled frame 2 travel along the ground rail 1. Each drive wheel 22 is equipped with a 1-kilowatt motor, supporting independent drive and precise speed control, and can achieve 180-degree rotation to meet the 90-degree flexible turning requirements during relocation. When the self-propelled frame 2 reaches the edge of the experimental field, the drive wheels 22 rotate 90 degrees, then move to the next ground rail 1, rotate another 90 degrees, symmetrically move to the next ground rail, and then carry out the rice planting operation in the next area in the same way.

[0038] During the transition process:

[0039] 1. The electric lifting rod 23 adjusts the height of the frame 3, allowing the equipment to be moved from the field ridge to the field passage;

[0040] 2. The steering motor in drive wheel 22 rotates the wheel 90 degrees, switching to ground walking;

[0041] 3. The land-based driving system moves the entire equipment along the field access road to the next field;

[0042] 4. Upon reaching the Xintian block, the steering motor readjusts the wheels by 90 degrees, causing the track wheels to engage with the Xintian embankment track, thus resuming the operating mode.

[0043] When it is necessary to adjust the distance between the two self-propelled frames 2, the distance is adjusted by electric actuators to adapt to the operational needs of experimental fields with a width of 15-18 meters. This electromechanical integrated adjustment mechanism enables flexible switching of span and stable support, meeting the needs of rice transplanting operations in different plots.

[0044] Meanwhile, the electric lifting rod 23 can adjust the height of the drive wheel 22 as needed to ensure that the self-propelled frame 2 slides smoothly on the row frame 3. This dual adjustment mechanism (electric push rod and electric lifting rod 23) can not only achieve precise row spacing adjustment, but also maintain the smooth movement of the self-propelled frame 2 during the adjustment process, avoiding uneven rice planting caused by improper spacing adjustment.

[0045] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements can be made without departing from the principle of the present utility model, and these improvements should also be considered within the protection scope of the present utility model.

Claims

1. A row-type rice transplanter for experimental fields, characterized in that: include: Ground tracks, several ground tracks are arranged at intervals and parallel to each other on the ridges of the experimental field; The self-propelled frame is equipped with its own drive source and works in conjunction with the ground rail to move on the ground rail; A truss, with two self-propelled frames connected to both ends of the truss, and each self-propelled frame can slide on the truss to adjust the distance between the two self-propelled frames; The rice transplanter has its own drive source and works with the frame to move on the frame.

2. The experimental field row-type rice transplanter as described in claim 1, characterized in that: The self-propelled frame includes a frame and drive wheels. Two drive wheels are mounted on the frame and cooperate with the ground rail. The drive wheels are equipped with motors, which serve as the driving source for the self-propelled frame.

3. The experimental field row-type rice transplanter as described in claim 2, characterized in that: The drive wheel is an electric steering wheel.

4. The experimental field row-type rice transplanter as described in claim 2, characterized in that: The frame is also equipped with electric lifting rods on both sides, and each electric lifting rod has a drive wheel at its free end.

5. The experimental field row-type rice transplanter as described in claim 1, characterized in that: The self-propelled frame is equipped with pulleys, and the gantry is equipped with electric push rods and slide rails that cooperate with the pulleys. The electric push rods are connected to the self-propelled frame and push the self-propelled frame to slide on the gantry.

6. The row-type rice transplanter for experimental fields as described in claim 1, characterized in that: The frame is equipped with a rack, and the rice transplanter is equipped with a gear driven by an independent motor, the gear meshing with the rack.

7. The experimental field row-type rice transplanter as described in claim 1, characterized in that: The rice transplanter is equipped with a retainer, and the retainer is equipped with a guide pulley. The gear and the guide pulley are arranged vertically, the rack is located on the upper end surface of the frame, and the guide pulley is in contact with the lower end surface of the frame.

8. The row-type rice transplanter for experimental fields as described in claim 7, characterized in that: The guide pulley has a groove on its rolling surface, which cooperates with the frame.