A semi-feed rice harvester chain and rice harvester

CN224863476UActive Publication Date: 2026-10-20HANGZHOU DONGHUA CHAIN GRP
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Patent Information

Application Number
CN202521919117.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-09-08
Publication Date
2026-10-20
Estimated Expiration
2035-09-08

AI Technical Summary

Technical Problem

[0003]本实用新型的目的是提供一种半喂入水稻收割机链条及水稻收割机,解决现阶段水稻收割机链条收取效率难以进一步提高的问题

Benefits of technology

[0012]本实用新型的有益效果是,本方案中通过采用形状为弯刀形状的外链板,工作时能够增加与水稻秸秆的受力面积,便于输送谷物,提高收取效率,且弯刀型链板与尖齿状内链板搭配使用,内链板采用翻孔结构,进一步地提升输送系统的承重能力,能够输送更多的水稻秸秆,且具有良好的运行稳定性,且相比传统的尖齿链,具有强度高和框架不易变形松动的特点。

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Abstract

The utility model provides a kind of semi-feeding rice harvester chain and rice harvester, it is related to harvester chain technical field, including several inner links and outer links, inner link includes inner link plate and roller, outer link plate is provided with the curved blade part with arc contact surface, overall constitutes curved blade type link plate, the height of outer link plate is greater than the height of inner link plate, by adopting the outer link plate of shape as curved blade shape, can increase the force area with rice straw when working, facilitate conveying grain, improve collection efficiency, and curved blade type link plate is used in conjunction with tine inner link plate, inner link plate uses hole flanging structure, further improve the load capacity of conveying system, more rice straw can be conveyed, and have good running stability, and compared with traditional tine chain, with the characteristics of high strength and frame is not easy to deform loose.
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Description

Technical Field

[0001] This utility model relates to the field of harvester chain technology, and in particular to a semi-feeding rice harvester chain and a rice harvester. Background Technology

[0002] Currently, the inner and outer chain plates of traditional semi-feed rice harvesters are of the same type, such as... Figure 4 As shown, this toothed chain structure is used for conventional rice harvesting. Due to its small force-bearing area and poor load-bearing capacity, its harvesting efficiency is difficult to improve further. In addition, the toothed chain structure generally suffers from unstable operation. In order to address the above defects, this application is proposed. Utility Model Content

[0003] The purpose of this invention is to provide a semi-feeding rice harvester chain and a rice harvester, solving the problem that the current rice harvester chain collection efficiency is difficult to further improve.

[0004] To address the aforementioned problems, this utility model provides a chain for a semi-feeding rice harvester, comprising several inner and outer chain links. Each inner chain link includes an inner chain plate and rollers, while each outer chain link includes an outer chain plate and pins. The rollers are installed between the inner chain plates, and the pins pass through the rollers to connect the inner and outer chain plates. The outer chain plate is provided with a curved blade portion having an arc-shaped contact surface, forming a curved blade-shaped chain plate. The height of the outer chain plate is greater than the height of the inner chain plate. The use of a curved blade-shaped outer chain plate increases the contact area with the rice straw during operation, facilitating grain transport and improving harvesting efficiency.

[0005] According to one embodiment of the present invention, the inner chain plate is a toothed chain plate. The combination of the curved chain plate and the toothed chain plate enhances the load-bearing capacity of the conveying system, enabling it to convey more rice straw and providing good operational stability. Compared with traditional toothed chains, it has the characteristics of high strength and frame that is not easily deformed or loosened.

[0006] According to one embodiment of the present invention, the inner chain plate is provided with a perforated structure, the pin is provided through the perforated structure, the overall frame has no sleeve, and the pin is directly linked to the inner chain plate, which increases the running strength of the inner chain.

[0007] According to one embodiment of the present invention, the inner diameter of the roller is larger than the outer diameter of the perforated structure, ensuring that the roller is located between the perforated structures of the two inner chain plates, thus ensuring the stability of the chain structure.

[0008] According to one embodiment of the present invention, the chain of a semi-feeding rice harvester further includes a connecting link, which is used to connect the other end of the chain to form a complete chain. The connecting link includes a connecting plate, a connecting pin, and a cotter pin.

[0009] According to one embodiment of the present invention, the curved blade is inclined toward the arc-shaped contact surface to further improve the stability during operation.

[0010] According to one embodiment of the present invention, the top of the outer chain plate is at least one-third the height of the inner chain plate above the top of the inner chain plate.

[0011] A rice harvester includes the aforementioned semi-feeding rice harvester chain.

[0012] The beneficial effects of this utility model are that, by using an outer chain plate in the shape of a scimitar, the force-bearing area with the rice straw can be increased during operation, which facilitates the transport of grain and improves the harvesting efficiency. Furthermore, the scimitar-shaped chain plate is used in combination with a toothed inner chain plate, and the inner chain plate adopts a perforated structure, which further enhances the load-bearing capacity of the conveying system, enabling it to transport more rice straw and has good operational stability. Compared with traditional toothed chains, it has the characteristics of high strength and frame that is not easily deformed or loosened. Attached Figure Description

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 A schematic diagram of the overall structure of the chain in a semi-feeding rice harvester;

[0015] Figure 2 Front and top views of the chain of a semi-feed rice harvester;

[0016] Figure 3 A schematic diagram of the components of a chain in a semi-feeding rice harvester;

[0017] Figure 4 This is a schematic diagram comparing the traditional toothed chain structure with the chain of the semi-feeding rice harvester in this design. Detailed Implementation

[0018] The following description is only intended to disclose the present invention so that those skilled in the art can implement it. The embodiments in the following description are merely examples, and those skilled in the art will conceive of other obvious modifications. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other solutions that do not depart from the spirit and scope of the present invention.

[0019]

Example 1

[0020] A semi-feed rice harvester chain, such as Figures 1-3 It includes several inner links, outer links, and connecting links.

[0021] The inner link includes an inner link plate 1 and a roller 3, and the outer link includes an outer link plate 2 and a pin 4. The roller 3 is installed between the inner link plates 1, and the pin 4 is installed by passing through the roller 3 to connect the inner link plate 1 and the outer link plate 2.

[0022] The inner chain plate 1 is a toothed chain plate, and the inner chain plate 1 is provided with a perforated structure 11. The pin 4 passes through the perforated structure 11. The overall frame has no sleeve. The pin 4 is directly linked to the inner chain plate 1, which increases the running strength of the inner chain. The inner diameter of the roller 3 is larger than the outer diameter of the perforated structure 11, ensuring that the roller 3 is located between the perforated structures 11 of the two inner chain plates 1, thus ensuring the stability of the chain structure.

[0023] The outer chain plate 2 is provided with a curved blade part 21 with an arc-shaped contact surface 22, forming a curved blade type chain plate. The height of the outer chain plate 2 is greater than the height of the inner chain plate 1, and the top of the outer chain plate 2 is at least one-third to one-half of the overall height of the inner chain plate 1 above the top of the inner chain plate 1.

[0024] The outer chain plate, shaped like a scimitar, increases the contact area with the rice straw during operation, facilitating grain transport and improving harvesting efficiency. The scimitar-shaped chain plate is used in conjunction with the toothed chain plate, and both the inner and outer chain plates feature a special structural design, enhancing the load-bearing capacity of the conveying system. This allows for the transport of more rice straw and provides excellent operational stability. Compared to traditional toothed chains, it boasts higher strength and a frame that is less prone to deformation and loosening, solving the problems of inconvenient rice harvesting in complex terrain and low or unstable equipment operation.

[0025] Preferably, the curved blade portion 21 is inclined toward the arc-shaped contact surface 22 to further improve the stability during operation.

[0026] The connecting link is used to connect the other end of the chain to form a complete chain. The connecting link includes a connecting plate 5, a connecting pin 6, and a cotter pin 7. The connecting plate 5 adopts the same structure as the outer plate 2.

[0027] A rice harvester includes the aforementioned semi-feeding rice harvester chain.

[0028] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The purpose of the present invention has been fully and effectively achieved. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the stated principles, the implementation of the present invention may have any variations and modifications.

Claims

1. A chain for a semi-feeding rice harvester, characterized in that: It includes several inner links and outer links. The inner links include an inner link plate (1) and a roller (3). The outer links include an outer link plate (2) and a pin (4). The roller (3) is installed between the inner link plates (1). The pin (4) passes through the roller (3) for installation, connecting the inner link plate (1) and the outer link plate (2). The outer link plate (2) is provided with a curved blade part (21) with an arc-shaped contact surface (22). The whole assembly forms a curved blade type chain plate. The height of the outer link plate (2) is greater than the height of the inner link plate (1).

2. The chain for a semi-feeding rice harvester according to claim 1, characterized in that: The inner chain plate (1) is a toothed chain plate.

3. The chain of a semi-feeding rice harvester according to claim 2, characterized in that: The inner chain plate (1) is provided with a perforated structure (11), and the pin (4) passes through the perforated structure (11).

4. The chain of a semi-feeding rice harvester according to claim 3, characterized in that: The inner diameter of the roller (3) is larger than the outer diameter of the perforated structure (11).

5. The semi-feeding rice harvester chain according to any one of claims 1-4, characterized in that: The chain of the semi-feeding rice harvester also includes connecting links, which include connecting chain plates (5), connecting pins (6) and cotter pins (7).

6. The semi-feeding rice harvester chain according to any one of claims 1-4, characterized in that: The curved blade (21) is inclined toward the arc-shaped contact surface (22).

7. The semi-feeding rice harvester chain according to any one of claims 1-4, characterized in that: The top of the outer chain plate (2) is at least one-third the height of the inner chain plate (1) above the top of the inner chain plate (1).

8. A rice harvester, characterized in that: Includes the semi-feeding rice harvester chain as described in any one of claims 1-7.