A rotary tillage device for a rice dry direct seeding machine

By installing hydraulically driven ditching and soil guiding components on the rotary tillage device of the rice direct seeding machine, the problems of inconsistent ditching and soil leakage are solved, achieving efficient operation of the rotary tillage device and reducing wear.

CN224386156UActive Publication Date: 2026-06-23ZHEJIANG GARDEN BEE HORTICULTURE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG GARDEN BEE HORTICULTURE TECH CO LTD
Filing Date
2025-06-20
Publication Date
2026-06-23

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Abstract

The utility model discloses a rotary tillage device for rice dry direct seeding machine, including rotary tillage main part, both sides of rotary tillage main part are equipped with ditching subassembly, the ditching subassembly includes the ditching connecting rod who is connected with rotary tillage main part, is equipped with hydraulic cylinder on the ditching connecting rod, is equipped with bearing seat on the hydraulic rod of hydraulic cylinder, and the bearing seat rotationally connected has ditching disc. The utility model has the characteristics of guaranteeing the consistency of ditching size, reducing wear and tear, can better guide the soil.
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Description

Technical Field

[0001] This utility model relates to a rice direct seeding machine, and more particularly to a rotary tillage device for a rice direct seeding machine. Background Technology

[0002] Direct seeding of rice involves a dry-seeding machine performing a series of operations on dry fields, including tilling, fertilizing, laying mulch, covering, watering, sowing, and cutting the mulch. This method enables dry-land rice cultivation and has significant advantages in terms of drought resistance, water conservation, fertilizer conservation, green production, high yield, and high efficiency. It is suitable for areas with scarce water resources and is of great significance for the development of the rice industry and food security in water-scarce and arid regions.

[0003] Conventional rice direct seeding machines typically include rotary tillage, fertilization, mulch film laying, soil covering, irrigation, and seeding devices. Existing rotary tillage systems generally use rotating blades to break up the soil, without a ditching mechanism. Even when a ditching mechanism is included, it's difficult to guarantee consistent ditch depth and width in actual operation. When encountering hard soil, the ditching effect is unsatisfactory and can easily damage the equipment. Furthermore, the soil produced during tillage is difficult to completely channel into the rear soil covering device, leading to leakage. Utility Model Content

[0004] The purpose of this invention is to provide a rotary tillage device for a rice direct seeding machine. This invention features consistent furrow dimensions, reduced wear, and better soil guidance.

[0005] The technical solution of this utility model is as follows: A rotary tillage device for a rice direct seeding machine includes a rotary tillage body, and ditching components are provided on both sides of the rotary tillage body. The ditching components include ditching connecting rods connected to the rotary tillage body, and hydraulic cylinders are provided on the ditching connecting rods. Bearing seats are provided on the hydraulic rods of the hydraulic cylinders, and ditching discs are rotatably connected to the bearing seats.

[0006] In the aforementioned rotary tillage device for a rice direct seeding machine, the furrowing disc and the seeding wheel of the seeding device are at a 25° angle.

[0007] In the aforementioned rotary tillage device for a rice direct seeding machine, the periphery of the furrowing disc is serrated, and the center of the furrowing disc has several through holes.

[0008] In the aforementioned rotary tillage device for a rice direct seeding machine, the rotary tillage body includes a gearbox shaft connected to the power output shaft of a tractor, a power shaft is driven and connected to the gearbox shaft, and a plurality of rotary tillage blades are provided on the power shaft.

[0009] In the aforementioned rotary tillage device for a rice direct seeding machine, a soil guiding assembly is provided at the rear lower part of the rotary tillage body. The soil guiding assembly includes fixed plates installed at both ends of the rotary tillage body, and a soil guiding plate is provided between the two fixed plates. The soil guiding plate is at a 135° angle to the ground.

[0010] In the aforementioned rotary tillage device for a rice direct seeding machine, the guide plate is provided with reinforcing ribs.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] This invention features ditching components on both sides of the rotary tiller. The ditching discs can rotate freely via a bearing housing structure and are driven by a hydraulic cylinder to rise and fall, thus adjusting the ditching depth according to the required depth, maintaining consistency on both sides, and preventing damage from hard soil or stones. During operation, the ditching disc adjacent to the previous seeding strip is raised and not in use, while the other ditching disc is lowered into operation, enabling continuous operation.

[0013] The rotary tiller is equipped with a soil guiding component at its lower rear, which can guide the soil generated during rotary tillage to fall as completely as possible into the soil covering device at the rear, reducing leakage. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a structural schematic diagram of the trenching component.

[0016] The labels in the attached diagram are as follows: 21, rotary tiller body; 211, gearbox shaft; 212, power shaft; 213, rotary tiller blade; 22, ditching assembly; 23, ditching connecting rod; 24, hydraulic cylinder; 25, ditching disc; 26, through hole; 61, fixing plate; 62, guide plate; 63, reinforcing rib. Detailed Implementation

[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments, but this should not be construed as limiting the present invention.

[0018] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0019] Example:

[0020] like Figures 1-2 As shown, a rotary tillage device for a rice direct seeding machine includes a rotary tillage body 21. Both sides of the rotary tillage body 21 are provided with ditching components 22. Each ditching component 22 includes a ditching connecting rod 23 connected to the rotary tillage body 21. A hydraulic cylinder 24 is mounted on the ditching connecting rod 23. A bearing seat is mounted on the hydraulic rod of the hydraulic cylinder 24, and a ditching disc 25 is rotatably connected to the bearing seat. The ditching disc 25 can rotate freely due to the structure of the bearing seat. Driven by the hydraulic cylinder 24, the ditching disc 25 is raised and lowered, thereby adjusting the ditching depth according to the required ditching depth and maintaining consistency on both sides. During operation, the ditching disc 25 adjacent to the previous seeding strip is raised and not in operation, while the ditching disc 25 at the other end is lowered into operation, enabling continuous operation.

[0021] The rotary tiller body includes a gearbox shaft 211 connected to the tractor's power take-off shaft. A power shaft 212 is driven and connected to the gearbox shaft 211, and a plurality of rotary tillage blades 213 are provided on the power shaft 212. The gearbox shaft 211 drives the power shaft 212 to rotate through a transmission, thereby driving the rotary tillage blades 213 to rotate, realizing soil breaking and tillage.

[0022] The furrowing disc 25 is at a 25° angle to the seeding wheel of the seeding device.

[0023] The periphery of the trenching disc 25 is serrated, and the center of the trenching disc 25 is provided with several through holes 26 to facilitate cutting the soil and reduce resistance, so as to avoid wear and damage to it caused by hard soil.

[0024] A soil guiding assembly is provided at the lower rear of the rotary tiller body 21. The soil guiding assembly includes fixing plates 61 installed at both ends of the rotary tiller body 21, and a soil guiding plate 62 is provided between the two fixing plates 61. The soil guiding plate 62 is at a 135° angle to the ground. The position and angle of the soil guiding assembly can guide the soil generated by the rotary tiller body 21 during rotary tillage to fall into the soil covering device at the rear as much as possible, reducing leakage.

[0025] The guide plate 62 is provided with reinforcing ribs 63 to improve the strength and load-bearing capacity of the guide plate 62.

[0026] The parts of this utility model not described in detail are existing technologies.

Claims

1. A rotary tillage device for a rice direct seeding machine, characterized in that: It includes a rotary tiller body (21), and ditching components (22) are provided on both sides of the rotary tiller body (21). The ditching components (22) include a ditching connecting rod (23) connected to the rotary tiller body (21). A hydraulic cylinder (24) is provided on the ditching connecting rod (23). A bearing seat is provided on the hydraulic rod of the hydraulic cylinder (24). A ditching disc (25) is rotatably connected to the bearing seat.

2. The rotary tillage device for a direct-seeding rice harvester according to claim 1, characterized in that: The furrowing disc (25) is at a 25° angle to the seeding wheel of the seeding device.

3. The rotary tillage device for a direct-seeding rice harvester according to claim 1, characterized in that: The periphery of the grooved disc (25) is serrated, and the center of the grooved disc (25) is provided with several through holes (26).

4. A rotary tillage device for a direct-seeding rice harvester according to claim 1, characterized in that: The rotary tillage body includes a gearbox shaft (211) connected to the power output shaft of the tractor, a power shaft (212) is driven and connected on the gearbox shaft (211), and a plurality of rotary tillage blades (213) are provided on the power shaft (212).

5. A rotary tillage device for a direct-seeding rice harvester according to claim 1, characterized in that: The rotary tillage body (21) is provided with a soil guiding component at its rear lower part. The soil guiding component includes a fixing plate (61) installed at both ends of the rotary tillage body (21). A soil guiding plate (62) is provided between the two fixing plates (61). The soil guiding plate (62) is at a 135° angle to the ground.

6. A rotary tillage device for a direct-seeding rice harvester according to claim 5, characterized in that: The guide plate (62) is provided with reinforcing ribs (63).