Weeding wheel of paddy field weeding machine

Abstract

The utility model relates to the field of weeding machines, in particular to a weeding wheel of a paddy field weeding machine, which comprises a shaft body used for being mounted on the weeding machine, the shaft body comprises two connecting shafts, a middle shaft is mounted between the two connecting shafts, and edge shafts are mounted at one ends, far away from the middle shaft, of the connecting shafts. The connecting shaft is provided with a bearing used for being connected with a weeding machine, a weeding machine power source (such as a motor / engine) drives the connecting shaft to rotate through a gear and a chain (the gear is fixedly installed on the connecting shaft), the edge shaft and the middle shaft are each provided with a weeding wheel, and each weeding wheel comprises two symmetrically-arranged wheel plates. The wheel plate and the connecting plate are matched and mounted through the mounting hole and the mounting convex part, so that the assembly is convenient, and the connection stability can be ensured; the middle shaft and the edge shaft are in bolted connection with the weeding wheel through the lug plates and the connecting holes, so that quick disassembly and assembly are realized, and the weeding wheel is convenient to maintain and replace.

Description

Technical Field

[0001] This utility model relates to the field of weeding machines, specifically a weeding wheel for a paddy field weeding machine. Background Technology

[0002] Existing weeding machine weeding wheels generally consist of a shaft, a weeding wheel mounted on the shaft, and weeding claws mounted on the weeding wheel. Both ends of the shaft are mounted on the frame. When the weeding wheel of the weeding machine is damaged, the shaft needs to be disassembled to complete the maintenance, which is relatively costly and troublesome to install and disassemble.

[0003] Therefore, it is necessary to provide a weeding wheel for a paddy field weeding machine to solve the above-mentioned technical problems. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a weeding wheel for a paddy field weeding machine.

[0005] This utility model provides a weeding wheel for a paddy field weeder, including a shaft for mounting on the weeder. The shaft includes two connecting shafts, with an intermediate shaft installed between the two connecting shafts. An edge shaft is installed at the end of the connecting shaft away from the intermediate shaft. A bearing for connecting to the weeder is installed on the connecting shaft. The weeder's power source (such as a motor / engine) drives the connecting shaft to rotate via gears and chains (gears are fixedly installed on the connecting shaft). Weeding wheels are installed on both the edge shaft and the intermediate shaft. Each weeding wheel includes two symmetrically arranged wheel plates, which are fixedly connected by several connecting plates. Weeding claws are fixed on the connecting plates.

[0006] When the shaft rotates, it drives the weeding claws to cut into the soil, destroying the roots and stems of weeds by cutting, hooking, and turning the soil.

[0007] Preferably, the wheel plate is provided with mounting holes, and the end of the connecting plate is provided with mounting protrusions that mate with the mounting holes, which facilitates the installation of the wheel plate and the connecting plate, while ensuring a more stable connection.

[0008] Preferably, the sidewalls of the intermediate shaft and the edge shaft are both hexagonal, and a hexagonal sleeve is fixed on the wheel plate. The hexagonal sleeve is sleeved with the corresponding intermediate shaft and edge shaft, and the rigid transmission of torque is achieved through the hexagonal sleeve to ensure the synchronous rotation of the weeding wheel assembly.

[0009] Preferably, the sidewalls of the intermediate shaft and the edge shaft are both fixed with ear plates, and the ear plates and the weeding wheel are both provided with connecting holes. The connecting holes on the ear plates and the weeding wheel are connected by bolts to achieve quick assembly and disassembly.

[0010] Preferably, both ends of the connecting shaft are provided with hexagonal protrusions, and the ends of the intermediate shaft and the edge shaft are provided with hexagonal mounting holes that mate with the hexagonal protrusions, forming a non-circular cross-section transmission, which effectively avoids the slippage phenomenon of traditional keyway transmission.

[0011] Compared with related technologies, the present invention provides the following beneficial effects:

[0012] Easy and stable installation: The wheel plate and connecting plate are installed through mounting holes and mounting protrusions, which facilitates assembly and ensures connection stability; the intermediate shaft and edge shaft are connected to the weeding wheel through ear plates and connecting hole bolts, enabling quick disassembly and assembly, and facilitating maintenance and replacement of the weeding wheel; the connecting shaft has hexagonal protrusions at both ends, which cooperate with the hexagonal mounting holes at the ends of the intermediate shaft and edge shaft to form a non-circular cross-section transmission, effectively avoiding the slippage phenomenon of traditional keyway transmission and ensuring the accuracy of power transmission. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the weeding wheel of this utility model;

[0015] Figure 3 This is a schematic diagram of the ear plate of this utility model;

[0016] Figure 4 This is a schematic diagram of the intermediate shaft structure of this utility model.

[0017] The following are the labels in the diagram: 1. Shaft body; 2. Connecting shaft; 3. Intermediate shaft; 4. Edge shaft; 5. Weeding wheel; 6. Wheel plate; 7. Connecting plate; 8. Weeding claw; 9. Mounting hole; 10. Mounting protrusion; 11. Hexagonal sleeve; 12. Ear plate; 13. Connecting hole; 14. Bearing; 15. Hexagonal protrusion; 16. Hexagonal mounting hole. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please refer to 1- Figure 4 A weeding wheel for a paddy field weeding machine has a core structure of a shaft 1 for mounting on the weeding machine. The shaft 1 has a reasonable overall layout, with two connecting shafts 2 forming the supporting base on both sides. An intermediate shaft 3 is precisely installed between the two connecting shafts 2, and an edge shaft 4 is installed at the end of each connecting shaft 2 away from the intermediate shaft 3, thus forming a stable and orderly shaft structure.

[0020] The connecting shaft 2 plays a crucial role in the entire transmission system. It is equipped with a bearing 14 for connection to the weeder, which allows the shaft 1 to be stably mounted on the weeder. The weeder's power source, such as an electric motor or engine, drives the connecting shaft 2 to rotate via a carefully designed combination of gears and chains. Specifically, gears are fixedly mounted on the connecting shaft 2. When the power source starts, power is transmitted through the gears and chains, causing the connecting shaft 2 to rotate, thereby driving the entire shaft 1 to operate.

[0021] Weeding wheels 5 are installed on both the edge shaft 4 and the intermediate shaft 3. These are the core components for achieving the weeding function. Each weeding wheel 5 consists of a main frame formed by two symmetrically arranged wheel plates 6. These two wheel plates 6 are securely connected by several connecting plates 7 to form a whole. Weeding claws 8 are fixedly installed on the connecting plates 7. These weeding claws 8 are key components that directly contact the soil and weeds and perform the weeding function.

[0022] When the shaft 1 rotates under power, it drives the weeding claw 8 to cut into the soil. With its unique shape and structure, the weeding claw 8 destroys the roots and stems of weeds through various actions such as cutting, hooking, and turning the soil, thereby achieving the purpose of removing weeds.

[0023] To optimize the assembly and connection performance of the weeding wheel 5, several ingenious design features were incorporated into its structure. Mounting holes 9 are evenly distributed on the wheel plate 6, while mounting protrusions 10, matching these mounting holes 9, are provided at the ends of the connecting plate 7. During assembly, simply inserting the mounting protrusions 10 at the ends of the connecting plate 7 accurately into the mounting holes 9 on the wheel plate 6 easily completes the installation of the wheel plate 6 and the connecting plate 7. This design not only greatly simplifies the installation process but also ensures a more secure connection between the wheel plate 6 and the connecting plate 7 through the tight fit between the mounting holes 9 and the mounting protrusions 10, effectively preventing malfunctions caused by loose components during weeding operations.

[0024] In terms of power transmission, the sidewalls of both the intermediate shaft 3 and the edge shaft 4 are designed with a hexagonal structure. Correspondingly, a hexagonal sleeve 11 is fixedly installed on the wheel plate 6. The inner diameter of the hexagonal sleeve 11 is adapted to the outer diameter of the hexagonal sidewalls of the intermediate shaft 3 and the edge shaft 4, enabling a tight fit with the corresponding intermediate shaft 3 and edge shaft 4. When the shaft 1 rotates, the power is rigidly transmitted through the rigid contact between the hexagonal sleeve 11 and the intermediate shaft 3 and the edge shaft 4, ensuring that the weeding wheel assembly can rotate synchronously with the shaft 1, thereby guaranteeing the efficiency and stability of the weeding operation.

[0025] To facilitate the maintenance and replacement of the weeding wheel 5, and to allow for flexible adjustments based on different weeding needs, ear plates 12 are fixedly installed on the side walls of both the intermediate shaft 3 and the edge shaft 4. Simultaneously, connecting holes 13 are provided at corresponding positions on the weeding wheel 5, with the ear plates 12 and the connecting holes 13 on the weeding wheel 5 corresponding to each other. When it is necessary to disassemble or assemble the weeding wheel 5, simply pass the bolts through the ear plates 12 and the connecting holes 13 on the weeding wheel 5 in sequence, and tighten the nuts to achieve quick installation; conversely, loosening the bolts allows for quick disassembly. This design makes the disassembly and assembly of the weeding wheel 5 simple and convenient, greatly improving the efficiency of equipment use and ease of maintenance.

[0026] At the connection points between the connecting shaft 2 and the intermediate shaft 3 and edge shaft 4, a unique design is employed to ensure the stability and reliability of the transmission. Both ends of the connecting shaft 2 are provided with hexagonal protrusions 15, while the ends of the intermediate shaft 3 and edge shaft 4 are provided with hexagonal mounting holes 16 that mate with these hexagonal protrusions 15. During assembly, the hexagonal protrusions 15 at both ends of the connecting shaft 2 are accurately inserted into the hexagonal mounting holes 16 at the ends of the intermediate shaft 3 and edge shaft 4, forming a non-circular cross-section transmission structure. This design effectively avoids the slippage phenomenon that may occur in traditional keyway transmission methods, ensuring more precise and stable power transmission between the connecting shaft 2 and the intermediate shaft 3 and edge shaft 4, thereby guaranteeing the normal operation of the entire weeding wheel device.

[0027] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the content of this utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A weeding wheel for a rice field weeder, characterized by comprising: The utility model provides a kind of weeding machine, including the shaft body (1) for being installed on weeding machine, the shaft body (1) includes two connecting shafts (2), and intermediate shaft (3) is installed between two connecting shafts (2), the end of the connecting shaft (2) is installed with edge shaft (4) away from intermediate shaft (3), the edge shaft (4) and intermediate shaft (3) are all installed with weeding wheel (5), the weeding wheel (5) includes two symmetrically arranged wheel plates (6), and the wheel plate (6) between two is fixedly connected by several connecting plates (7), and the connecting plate (7) is fixed with weeding claw (8).

2. The weeding wheel for rice field according to claim 1, wherein The wheel plate (6) is provided with a mounting hole (9), and the end of the connecting plate (7) is provided with a mounting convex portion (10) matched with the mounting hole (9).

3. The weeding wheel for rice field according to claim 1, wherein The side wall of the intermediate shaft (3) and the edge shaft (4) is hexagonal, the wheel plate (6) is fixed with a hexagonal sleeve (11), and the hexagonal sleeve (11) is sleeved with the corresponding intermediate shaft (3) and edge shaft (4).

4. The weeding wheel for rice field according to claim 1, wherein The side wall of the intermediate shaft (3) and the edge shaft (4) is fixed with an ear plate (12), and the ear plate (12) and the weeding wheel (5) are both provided with a connecting hole (13), and the connecting hole (13) on the ear plate (12) and the weeding wheel (5) is connected by a bolt.

5. The weeding wheel for rice field according to claim 1, wherein The two ends of the connecting shaft (2) are provided with hexagonal convex portions (15), and the end of the intermediate shaft (3) and the edge shaft (4) is provided with a hexagonal mounting hole (16) matched with the hexagonal convex portion (15).

6. The weeding wheel for rice field according to claim 1, wherein The connecting shaft (2) is installed with a bearing (14) for connecting with the weeding machine.

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