Intelligent small-grain crop furrow precision hill-planting seeder
The intelligent precision hill-seeding machine for small-grain crops uses modular baffles and chain drive mechanisms to adjust the sowing spacing, solving the problem of existing seeders being unable to adjust flexibly, and achieving precision sowing and efficient planting.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- GRAIN RES INST HEBEI ACAD OF AGRI & FORESTRY SCI
- Filing Date
- 2025-05-07
- Publication Date
- 2026-05-29
AI Technical Summary
Most existing seeders can only provide a few fixed seeding spacing modes, which are difficult to adjust flexibly and cannot meet the complex and diverse planting needs of small-grain crops, resulting in waste of seed resources and increased production costs.
An intelligent precision hill-seeding machine for small-grain crops was designed. By adjusting the installation interval of the modular baffles, the machine uses a chain drive mechanism to drive the seed guide wheel and seed metering disc to rotate, thereby achieving precision sowing that can adapt to different sowing spacings.
It enables flexible adjustment of sowing spacing according to the needs of different crops, reducing seed waste, lowering production costs, and improving planting efficiency.
Smart Images

Figure CN224290678U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of seeder technology, specifically relating to an intelligent precision hill-seeding machine for small-grain crops. Background Technology
[0002] In agricultural production, while traditional broadcasting is convenient for sowing small-grain crops in furrows, it results in messy seed distribution and significant waste. Subsequent thinning and seedling establishment require substantial manpower and resources. In large-scale planting scenarios, even slight deviations in seed quantity can accumulate over a large area, leading to significant seed resource waste. Furthermore, farmers bear high seed procurement costs; failure to accurately control the sowing amount undoubtedly increases production costs and reduces profit margins. In addition, the appropriate sowing spacing directly affects the crop's efficiency in obtaining light, water, and nutrients. Different small-grain crops have unique growth habits and varying sowing spacing requirements. For example, sesame plants are relatively short with fewer branches. To fully utilize land resources and sunlight conditions, in areas with fertile soil and convenient irrigation, a smaller sowing spacing is suitable to increase the number of plants per unit area and improve overall yield. In arid and rain-scarce regions, such as parts of northwestern my country, where buckwheat is grown, water scarcity necessitates increased sowing spacing to ensure each buckwheat plant receives sufficient water for growth and to prevent overcrowding and intense water competition. However, most existing seeders only offer a few fixed sowing spacing modes, making it difficult to flexibly adjust the spacing to meet the complex and diverse needs of small-grain crop cultivation. Utility Model Content
[0003] To address the above problems, the purpose of this utility model is to provide an intelligent precision hill-seeding machine for small-grain crops, solving the problem that most existing seeders can only provide a few fixed planting spacing modes, making it difficult to flexibly adjust the spacing when facing the complex and diverse planting needs of small-grain crops.
[0004] To achieve the above objectives, the present invention adopts the following technical solution: an intelligent precision hill-seeding machine for small-grain crops, comprising a frame on which a push rod, a ridging mechanism, and a traction frame are mounted. A traveling wheel is rotatably mounted at the bottom of the frame. The traveling wheel is connected to a rotating shaft in multiple intelligent seed metering components via multiple chain drive mechanisms. Each intelligent seed metering component includes an outer shell fixed to the frame. A cover plate is bolted to the open end of the outer shell. A rotating shaft is rotatably inserted into the outer shell and cover plate. A seed guide wheel and a seed metering disc are fitted onto the outer side of the rotating shaft. A fixing member is bolted to the outer side of the rotating shaft. The component is fitted with positioning bolts, the rods of which pass through the seed guide wheel and the seed metering disc and are threaded with nuts. Multiple modular baffles are clamped between the seed guide wheel and the seed metering disc. The seed guide wheel includes a back plate one, on which multiple seed guide grooves are formed. The seed metering disc includes a back plate two, on which an inner retaining ring and multiple partition plates surrounding the inner retaining ring are fixedly provided. Multiple seed metering grooves are formed between the partition plates, the back plate two, and the inner retaining ring. Each seed metering groove is opposite to a seed guide groove. The modular baffles are fitted onto the outside of the seed guide grooves. Feed inlets and discharge outlets are respectively provided on the upper and lower sides of the outer shell.
[0005] The beneficial effects of this utility model are as follows: by adjusting the installation interval between multiple modular baffles, the traveling wheel drives the seed guide wheel and seed metering disc to rotate for sowing, releasing seeds at a suitable frequency, thereby adapting to planting holes with different spacing.
[0006] To ensure the stability of the linkage between the travel wheel and the axle;
[0007] As a further improvement to the above technical solution: the driving sprocket and the driven sprocket in the chain drive mechanism are respectively installed on the axle and the shaft of the traveling wheel, and the shaft is rotatably clamped onto the outer casing.
[0008] The beneficial effect of this improvement is that, through the use of the chain drive mechanism, the rolling travel wheel can drive the shaft to rotate stably during the movement of the entire device.
[0009] In order to allow the seed material to smoothly enter and exit the outer shell;
[0010] As a further improvement to the above technical solution: the feeding port passes through the top of the cavity between the seed guide wheel and the inner end face of the outer shell, and the discharge port passes through the bottom of the curved side surface of the outer shell between the seed metering disc and the seed guide wheel.
[0011] The beneficial effects of this improvement are: the seed material can be put into the outer shell through the feeding port, and then intermittently discharged through the discharge port under the conveying of the seed guide wheel and the seed metering disc to achieve sowing.
[0012] To ensure that the seed guide wheel effectively delivers the seed material;
[0013] As a further improvement to the above technical solution: the back plate is a circular plate structure and its curved side surface is connected to the inner wall of the outer shell. Multiple seed guide grooves are equidistantly spaced around the axis of the back plate. A temporary retention groove is connected to the side of the seed guide groove facing away from the seed metering plate. The temporary retention groove has a spoon-shaped structure.
[0014] The beneficial effects of this improvement are: during the rotation of the seed guide wheel, the seeds falling into the temporary storage groove can effectively slide down the inner wall of the temporary storage groove into the seed guide groove, and then fall into the seed discharge groove through the seed guide groove under the action of inertia.
[0015] To ensure the stability of the seed guide wheel and seed metering disc installed on the rotating shaft;
[0016] As a further improvement to the above technical solution: the fixing component includes a pipe clamp, one end of which is connected to an end plate, and the end plate has a through hole for a sliding connection positioning bolt.
[0017] The beneficial effects of this improvement are: the fastener itself can be securely installed on the rotating shaft, and the seed guide wheel and seed metering disc are securely connected by the cooperation of the positioning bolts and nuts, ensuring the stability of the seed guide wheel and seed metering disc installed on the rotating shaft.
[0018] To ensure the stability of the modular baffle installed between the seed guide wheel and the seed metering disc;
[0019] As a further improvement to the above technical solution: the two ends of the modular baffle are clamped between the partition plate and the back plate.
[0020] The beneficial effect of this improvement is that the cooperation between the partition plate and the back plate restricts the movement of the modular baffle in the axial direction of the rotating shaft.
[0021] To further improve the stability of the modular baffle installed between the seed guide wheel and the seed metering disc;
[0022] As a further improvement to the above technical solution: the modular baffle has a positioning block that is adapted to be embedded in the seed guide groove on the side facing the seed guide groove.
[0023] The beneficial effects of this improvement are: the cooperation between the positioning block and the seed guide groove restricts the displacement of the modular baffle in other directions, effectively ensuring the installation stability of the modular baffle.
[0024] The parts of the device not covered herein are the same as or can be implemented using existing technologies. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model;
[0026] Figure 2 This is a cross-sectional view of the intelligent seeding component in this utility model;
[0027] Figure 3 This is an exploded view of the intelligent seeding component in this utility model;
[0028] Figure 4 This is a schematic diagram of the seed guide wheel in this utility model;
[0029] Figure 5 This is a schematic diagram of the modular baffle in this utility model;
[0030] Figure 6 This is a schematic diagram of the structure of the fixing component in this utility model;
[0031] In the diagram: 1. Frame; 2. Push rod; 3. Traveling wheel; 4. Chain drive mechanism; 5. Intelligent seed metering component; 6. Outer shell; 61. Feeding port; 62. Discharge port; 7. Rotating shaft; 8. Seed guide wheel; 81. Back plate one; 82. Seed guide groove; 83. Temporary retention groove; 9. Seed metering disc; 91. Back plate two; 92. Divider plate; 93. Inner retaining ring; 94. Seed metering groove; 10. Modular baffle; 101. Positioning block; 11. Fixing component; 111. Pipe clamp; 112. End plate; 12. Positioning bolt; 13. Cover plate; 14. Ridging mechanism; 15. Traction frame. Detailed Implementation
[0032] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0033] Example 1:
[0034] like Figure 1As shown in Figure 6: An intelligent precision hill-seeding machine for small-grain crops includes a frame 1. A push rod 2, a ridging mechanism 14, and a traction frame 15 are mounted on the frame 1. A travel wheel 3 is rotatably mounted on the bottom end of the frame 1. The travel wheel 3 is connected to a rotating shaft 7 in multiple intelligent seed metering components 5 via multiple chain drive mechanisms 4. Each intelligent seed metering component 5 includes a housing 6, which is fixed to the frame 1. A cover plate 13 is bolted to the open end of the housing 6. A rotating shaft 7 is rotatably inserted into the housing 6 and the cover plate 13. A seed guide wheel 8 and a seed metering disc 9 are fitted onto the outer side of the rotating shaft 7. A fixing member 11 is bolted to the outer side of the rotating shaft 7, and a positioning bolt 12 is inserted into the fixing member 11. The rod of the positioning bolt 12 passes through the seed guide wheel 8 and the seed metering disc 9 and is threaded with a nut. Multiple modular baffles 10 are clamped between the seed guide wheel 8 and the seed metering disc 9. The seed guide wheel 8 includes a back plate 1 81 with multiple seed guide grooves 82. The seed metering disc 9 includes a back plate 2 91. An inner retaining ring 93 and multiple partition plates 92 surrounding the inner retaining ring 93 are fixed to the side of the back plate 2 91 facing the seed guide wheel 8. Multiple seed metering grooves 94 are formed between the partition plates 92, the back plate 2 91, and the inner retaining ring 93. Each seed metering groove 94 is opposite to one seed guide groove 82. The modular baffles 10 are fitted onto the outside of the seed guide grooves 82. Feed ports 61 are respectively provided on the upper and lower sides of the outer casing 6. With the discharge port 62, by adjusting the installation interval between multiple modular baffles 10, the traveling wheel 3, driven by the chain drive mechanism 4, rotates the seed guide wheel 8 and the seed metering disc 9 to release seeds at a suitable frequency during sowing, thus adapting to planting holes with different spacing. The driving sprocket and driven sprocket in the chain drive mechanism 4 are respectively installed on the axle and the rotating shaft 7 of the traveling wheel 3. The rotating shaft 7 is rotatably clamped onto the outer shell 6. Through the use of the chain drive mechanism 4, the rolling traveling wheel 3 can drive the rotating shaft 7 to rotate stably during the movement of the entire device. The feeding port 61 penetrates the top of the cavity between the seed guide wheel 8 and the inner end face of the outer shell 6, and the discharge port 62 penetrates the bottom of the curved side surface of the outer shell 6 between the seed metering disc 9 and the seed guide wheel 8. Seed material can be fed into the outer shell 6 through the feeding port 61, and intermittently discharged through the discharge port 62 under the conveying of the seed guide wheel 8 and the seed metering disc 9 to achieve sowing. The back plate 81 is a circular plate structure with its curved side surface connected to the inner wall of the outer shell 6. Multiple seed guide grooves 82 are equidistantly spaced around the axis of the back plate 81. A temporary retention groove 83 is connected to the side of the seed guide groove 82 facing away from the seed metering disc 9. The temporary retention groove 83 has a spoon-shaped structure. During the rotation of the seed guide wheel 8, the seeds falling into the temporary retention groove 83 can effectively slide down the inner wall of the temporary retention groove 83 into the seed guide groove 82, and fall into the seed metering groove 94 under the action of inertia. The fixing member 11 includes a pipe clamp 111, one end of which is connected to an end plate 112.The end plate 112 has a through hole for a sliding connection positioning bolt 12. The fixing member 11 itself can be stably installed on the rotating shaft 7. The seed guide wheel 8 and the seed metering disc 9 are stably connected by the cooperation of the positioning bolt 12 and the nut, ensuring the stability of the seed guide wheel 8 and the seed metering disc 9 on the rotating shaft 7. The two ends of the modular baffle 10 are clamped between the partition plate 92 and the back plate 81. The cooperation between the partition plate 92 and the back plate 81 restricts the movement of the modular baffle 10 in the axial direction of the rotating shaft 7. The side of the modular baffle 10 facing the seed guide groove 82 has a positioning block 101 that is adapted to be embedded in the seed guide groove 82. The cooperation between the positioning block 101 and the seed guide groove 82 restricts the displacement of the modular baffle 10 in other directions, effectively ensuring the installation stability of the modular baffle 10.
[0035] The working principle of this technical solution is as follows: If the required sowing conditions are a ridge width of 30cm, a furrow width of 50cm, and two sowing rows on one ridge, then this device will cover the sowing rows on two ridges across one furrow. A total of four intelligent seed metering components 5 are required to ensure that the device sows seeds in the planting holes of four sowing rows simultaneously while moving. In specific operation, an appropriate amount of small crop seeds is poured into the outer shell 6 of the intelligent seed metering component 5 through the feeding port 61. The push rod 2 is held to push the frame 1 forward, and the traveling wheel 3 rotates accordingly. When the traveling wheel 3 rotates, it is driven by the chain transmission mechanism. 4 drives the rotating shaft 7 to rotate synchronously. During the rotation of the rotating shaft 7, the seed guide wheel 8 and the seed metering disc 9 installed on its outer side also rotate together. The seeds falling into the temporary storage groove 83 slide effectively down the spoon-shaped inner wall of the temporary storage groove 83 into the seed guide groove 82 when the seed guide wheel 8 rotates. Under the action of inertia, the seeds fall into the seed metering groove 94 of the seed metering disc 9 through the seed guide groove 82. When the seed metering groove 94 rotates to the position opposite to the discharge port 62, the seeds in the seed metering groove 94 are discharged through the discharge port 62 under the action of gravity and fall into the planting hole in the furrow below, completing one sowing process.
[0036] When adjusting the sowing spacing according to actual planting needs, first remove the cover plate 13 connected by bolts on the outer shell 6, then loosen the nuts on the positioning bolts 12, remove the fixing part 11, seed guide wheel 8, and seed metering disc 9, then lay the seed guide wheel 8 flat alone, change the installation interval between multiple modular baffles 10, then cover the modular baffle 10 with the seed metering disc 9, then hold the seed guide wheel 8 and seed metering disc 9 tightly to maintain a stable clamping on the modular baffle 10, and reinstall them on the rotating shaft 7 and lock them with the fixing part 11 and positioning bolts 12.
[0037] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0038] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of the present invention, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.
Claims
1. An intelligent precision hill-seeding machine for small-grain crops, characterized in that: The system includes a frame (1), on which a push rod (2), a ridging mechanism (14), and a traction frame (15) are mounted. A travel wheel (3) is rotatably mounted at the bottom end of the frame (1). The travel wheel (3) is connected to the rotating shaft (7) of multiple intelligent seeding components (5) via multiple chain drive mechanisms (4). The intelligent seeding component (5) includes an outer shell (6), which is fixed to the frame (1). A cover plate (13) is bolted to the open end of the outer shell (6). A rotating shaft (7) is rotatably inserted into the outer shell (6) and the cover plate (13). A seed guide wheel (8) and a seed metering disc (9) are fitted on the outside of the rotating shaft (7). A fixing member (11) is fastened to the outside of the rotating shaft (7) by bolts. A positioning bolt (12) is inserted into the fixing member (11). The rod of the positioning bolt (12) passes through the seed guide wheel. (8) and seed metering disc (9) are threadedly connected with nuts. Multiple modular baffles (10) are clamped between the seed guide wheel (8) and the seed metering disc (9). The seed guide wheel (8) includes a back plate (81). Multiple seed guide grooves (82) are opened on the back plate (81). The seed metering disc (9) includes a back plate (91). An inner retaining ring (93) and multiple partition plates (92) are fixed on the side of the back plate (91) facing the seed guide wheel (8). Multiple seed metering grooves (94) are formed between the partition plates (92), the back plate (91), and the inner retaining ring (93). Each seed metering groove (94) is opposite to a seed guide groove (82). The modular baffles (10) are adapted to cover the outside of the seed guide grooves (82). The upper and lower sides of the outer shell (6) are respectively provided with a feeding port (61) and a discharge port (62).
2. The intelligent precision hill-seeding machine for small-grain crops according to claim 1, characterized in that: The driving sprocket and driven sprocket in the chain drive mechanism (4) are respectively installed on the axle and shaft (7) of the traveling wheel (3), and the shaft (7) is rotatably clamped on the outer shell (6).
3. The intelligent precision hill-seeding machine for small-grain crops according to claim 1, characterized in that: The feeding port (61) passes through the top of the cavity between the seed guide wheel (8) and the inner end face of the outer shell (6), and the discharge port (62) passes through the bottom of the curved side of the outer shell (6) between the seed metering disc (9) and the seed guide wheel (8).
4. The intelligent precision hill-seeding machine for small-grain crops according to claim 1, characterized in that: The back plate (81) is a circular plate structure and its curved side surface is connected to the inner wall of the outer shell (6). Multiple seed guide grooves (82) are equidistantly spaced around the axis of the back plate (81). A temporary storage groove (83) is connected to the side of the seed guide groove (82) facing away from the seed tray (9). The temporary storage groove (83) has a spoon-shaped structure.
5. The intelligent precision hill-seeding machine for small-grain crops according to claim 1, characterized in that: The fastener (11) includes a pipe clamp (111), one end of which is connected to an end plate (112), and the end plate (112) has a through hole for a sliding connection positioning bolt (12).
6. The intelligent precision hill-seeding machine for small-grain crops according to claim 1, characterized in that: The two ends of the modular baffle (10) are clamped between the partition plate (92) and the back plate (81).
7. The intelligent precision hill-seeding machine for small-grain crops according to claim 1, characterized in that: The modular baffle (10) has a positioning block (101) adapted to be embedded in the seed guide groove (82) on the side facing the seed guide groove (82).