Sunflower harvesting device
By designing a sunflower harvesting device with a transmission component and a cutting device, the problem of the inability to adjust the height of existing equipment was solved, achieving complete cutting of sunflower heads and uniform stem diameter, and improving threshing and screening efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHIJIAZHUANG JINJIAN MACHINERY EQUIP MFG CO LTD
- Filing Date
- 2026-03-10
- Publication Date
- 2026-04-24
AI Technical Summary
The existing harvesting equipment cannot adjust the height, resulting in inconsistent stalk diameters after sunflower harvesting, which affects subsequent threshing and screening operations.
Design a sunflower harvesting device, comprising a vehicle body, a fixed plate, a sliding plate, and a transmission assembly. A drive motor drives a lead screw to rotate, adjusting the height of the sliding plate to ensure that the harvesting plate is located below the sunflower head. The cutting disc cuts the sunflower head, and the harvested flowers are collected in a collection box.
This method enables complete cutting of the sunflower head, reduces residual stem diameter, and ensures smooth subsequent threshing and screening.
Smart Images

Figure CN121909831A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of harvesting equipment technology, and more particularly to a sunflower harvesting device. Background Technology
[0002] Sunflowers belong to the order Asterales, family Asteraceae, and genus Helianthus. They are named for their inflorescences that follow the sun's rotation. They are tall, annual herbaceous plants. Sunflower seeds have high edible and medicinal value, and after harvesting, they can be used in medicine, for oil extraction, and for consumption. Sunflowers have relatively thick stems, with a round flower head at the top. The seeds grow on this flower head. To harvest the seeds, the sunflowers must be harvested after they have matured. After harvesting, the seeds are threshed and screened to obtain the seeds. However, during the sunflower harvesting process, some harvesting equipment cannot adjust the height, resulting in some stem diameter remaining on the harvested sunflower head, and the stem diameter varies at different lengths, affecting subsequent threshing and screening operations. Summary of the Invention
[0003] The purpose of this invention is to address the shortcomings of the prior art by providing a sunflower harvesting device.
[0004] To solve the above problems, the technical solution adopted by the present invention is as follows:
[0005] A sunflower harvesting device, comprising a vehicle body;
[0006] A fixing plate is fixedly installed at the front end of the vehicle body;
[0007] A sliding plate is slidably mounted on the fixed plate;
[0008] A transmission assembly is disposed on the fixed plate and connected to the sliding plate, for driving the sliding plate to slide;
[0009] A harvesting assembly, mounted on the sliding plate, is used for harvesting sunflowers.
[0010] Preferably, the transmission assembly includes a lead screw rotatably mounted on the fixed plate, a sliding plate threadedly connected to the lead screw for driving the fixed plate to slide, and a drive motor fixedly mounted on the fixed plate for driving the lead screw to rotate.
[0011] Preferably, a guide rod is fixedly disposed on the fixed plate, the guide rod is arranged parallel to the lead screw, and a slider is fixedly disposed on the sliding plate, the slider being slidably disposed on the guide rod.
[0012] Preferably, the vehicle body includes a floor, on which rollers are rotatably mounted, and a handrail is fixedly mounted at one end of the floor for driving the vehicle body forward.
[0013] Preferably, a collection box is provided on the base plate for collecting sunflowers.
[0014] Preferably, the harvesting assembly includes a harvesting plate with a harvesting groove, and a cutting disc rotatably mounted on the harvesting plate, located below the harvesting groove, for harvesting sunflowers.
[0015] Preferably, the width of the harvesting groove on the side away from the sliding plate is greater than the width on the side closer to the sliding plate.
[0016] Preferably, the harvesting plate includes a mounting plate and a front guide plate, the cutting disc is rotatably mounted on the mounting plate, the front guide plate is located on the side of the mounting plate away from the sliding plate, and the cutting groove is located on the front guide plate.
[0017] Preferably, a rear guide plate is fixedly provided on the sliding plate, the rear guide plate is located on the side of the sliding plate opposite to the harvesting plate, and the rear guide plate is inclined.
[0018] The beneficial effects of adopting the above technical solution are as follows:
[0019] In this invention, a drive motor rotates a lead screw, allowing a sliding plate to slide up and down on a fixed plate. This adjusts the height of the sliding plate, positioning the harvesting plate below the sunflower head. As the vehicle moves forward, the cutting disc harvests the sunflowers, cutting off the sunflower heads. The sunflower heads then fall into a collection box on the vehicle, completing the harvest. The height adjustment via the sliding plate reduces the length of the remaining stem diameter in the flower head and ensures that the stem diameter is uniform, facilitating subsequent threshing and screening processes. Attached Figure Description
[0020] Figure 1 This is a three-dimensional schematic diagram of the present invention;
[0021] Figure 2 This is a three-dimensional schematic diagram of the vehicle body of the present invention;
[0022] Figure 3 This is a three-dimensional schematic diagram of the sliding plate of the present invention.
[0023] In the diagram: 1 is the vehicle body, 2 is the fixed plate, 3 is the sliding plate, 4 is the lead screw, 5 is the drive motor, 6 is the guide rod, 7 is the slider, 8 is the base plate, 9 is the roller, 10 is the handrail, 11 is the collection box, 12 is the harvesting plate, 13 is the harvesting trough, 14 is the cutting disc, 15 is the mounting plate, 16 is the front guide plate, and 17 is the rear guide plate. Detailed Implementation
[0024] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.
[0025] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0026] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" 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 invention based on the specific circumstances.
[0027] like Figures 1 to 3 As shown, a sunflower harvesting device includes a vehicle body 1. A fixed plate 2 is fixedly mounted on the front end of the vehicle body 1. The fixed plate 2 is vertically arranged, and a sliding plate 3 is slidably mounted on the fixed plate 2. The sliding plate 3 is vertically slidably mounted on the front end of the fixed plate 2. A transmission assembly is provided on the fixed plate 2 and connected to the sliding plate 3 for driving the sliding plate 3 to slide. A harvesting assembly is provided on the sliding plate 3 for harvesting sunflowers. In this invention, the harvester pushes the vehicle body 1 forward. The vehicle body 1 can be driven by electricity or an internal combustion engine, saving the operator's physical strength. During the forward movement of the vehicle body 1, the harvesting assembly can harvest the sunflowers. The height of the sliding plate 3 can be adjusted by sliding it up and down to adapt to the height of different types of sunflowers, so that the cutting position is located below the sunflower head, ensuring that the stem diameter below the head remains consistent, thus facilitating subsequent operations such as threshing and screening.
[0028] In one embodiment of the present invention, the transmission assembly includes a lead screw 4 rotatably mounted on a fixed plate 2. Mounting blocks are fixedly mounted at both the upper and lower ends of the fixed plate 2. Both ends of the lead screw 4 are rotatably mounted on the mounting blocks. A sliding plate 3 is threadedly connected to the lead screw 4 to drive the fixed plate 2 to slide. A drive motor 5 is fixedly mounted on the mounting block at the lower end of the fixed plate 2. The drive motor 5 is drively connected to the lead screw 4 to drive the lead screw 4 to rotate. In this embodiment, the lead screw 4 is rotated by the drive motor 5, thereby driving the sliding plate 3 to slide up and down, thereby adjusting the height of the sliding plate 3.
[0029] refer to Figure 2 and Figure 3 As shown, in one embodiment of the present invention, a guide rod 6 is fixedly provided on the fixed plate 2, the guide rod 6 is arranged parallel to the lead screw 4, and a slider 7 is fixedly provided on the sliding plate 3. The slider 7 is slidably provided on the guide rod 6, which enables the sliding plate 3 to slide along the guide rod 6, thereby avoiding problems such as misalignment and deflection of the sliding plate 3 during the sliding process.
[0030] In one embodiment of the present invention, the vehicle body 1 includes a base plate 8, on which rollers 9 are rotatably disposed, and a handrail 10 is fixedly disposed at one end of the base plate 8 for driving the vehicle body 1 to move.
[0031] In one embodiment of the present invention, a collection box 11 is provided on the base plate 8. The upper end of the collection box 11 is an open end for collecting sunflowers. After the sunflower heads are harvested, they can fall into the collection box 11 for centralized collection, thereby facilitating the harvesting and transportation of sunflowers.
[0032] refer to Figure 3As shown, in one embodiment of the present invention, the harvesting assembly includes a harvesting plate 12, which is located above the sliding plate 3. The harvesting plate 12 has harvesting grooves 13, and multiple harvesting grooves 13 are arranged in parallel. A cutting disc 14 is also rotatably mounted on the harvesting plate 12, located below the harvesting grooves 13, for harvesting sunflowers. The harvesting disc 14 is mounted on the shaft of a motor, and the motor is fixedly mounted on the harvesting plate 12. The motor drives the cutting disc 14 to rotate at high speed, thereby cutting the sunflowers. In this embodiment, during the sunflower harvesting process, as the vehicle 1 continues to move, the diameter of the sunflower stalk... The sunflower head is positioned in the harvesting trough 13, located at the upper end of the harvesting plate 12. As the cutting disc 14 rotates and cuts, the stalk diameter of the sunflower is cut off, leaving the sunflower head on the upper surface of the harvesting plate 12. As the vehicle 1 moves forward, the sunflowers behind it squeeze and transport the sunflower heads left on the harvesting plate 12 into the collection box 11 for centralized collection. The height can be adjusted by sliding the sliding plate 3 up and down, allowing the harvesting device to be adjusted according to the height of different types of sunflowers. This ensures that the cutting position is close to the lower surface of the sunflower head, reducing the residue of the stalk diameter. After harvesting, only the sunflower head is retained.
[0033] In one embodiment of the present invention, the width of the harvesting groove 13 on the side away from the sliding plate 3 is greater than the width on the side closer to the sliding plate 3, which facilitates the insertion of the sunflower stalk diameter.
[0034] In one embodiment of the present invention, the harvesting plate 12 includes a mounting plate 15 and a front guide plate 16. The cutting disc 14 is rotatably mounted on the mounting plate 15. The front guide plate 16 is located on the side of the mounting plate 15 away from the sliding plate 3. The front guide plate 16 is inclined. The height of the side of the front guide plate 16 closer to the vehicle body 1 is lower than the height of the side away from the vehicle body 1. The cutting groove 13 is located on the front guide plate 16. In this embodiment, the motor for driving the cutting disc 14 to rotate can be fixedly mounted on the mounting plate 15. The cut sunflower heads slide backward on the front guide plate 16 until they fall into the collection box 11.
[0035] In one embodiment of the present invention, a rear guide plate 17 is fixedly provided on the sliding plate 3. The rear guide plate 17 is located on the side of the sliding plate 3 away from the harvesting plate 12. The rear guide plate 17 is inclined and the height of the side of the rear guide plate 17 closer to the vehicle body 1 is lower than the height of the side away from the vehicle body 1. The cut flower heads can slide down along the rear guide plate 17 into the collection box 11 of the vehicle body 1, avoiding sunflower fragments from falling into the gap between the fixed plate 2 and the sliding plate 3 and getting stuck.
[0036] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims
1. A sunflower harvesting device, characterized in that, Including the vehicle body (1); A fixing plate (2) is fixedly installed at the front end of the vehicle body (1); The sliding plate (3) is slidably disposed on the fixed plate (2); A transmission assembly is disposed on the fixed plate (2) and connected to the sliding plate (3) for driving the sliding plate (3) to slide; A harvesting assembly, mounted on the sliding plate (3), is used for harvesting sunflowers.
2. The sunflower harvesting device according to claim 1, characterized in that, The transmission assembly includes a lead screw (4) rotatably mounted on the fixed plate (2), a sliding plate (3) threadedly connected to the lead screw (4) for driving the fixed plate (2) to slide, and a drive motor (5) fixedly mounted on the fixed plate (2) for driving the lead screw (4) to rotate.
3. A sunflower harvesting device according to claim 2, characterized in that, A guide rod (6) is fixedly installed on the fixed plate (2). The guide rod (6) is parallel to the lead screw (4). A slider (7) is fixedly installed on the sliding plate (3). The slider (7) is slidably installed on the guide rod (6).
4. A sunflower harvesting device according to claim 1, characterized in that, The vehicle body (1) includes a base plate (8), on which rollers (9) are rotatably mounted, and a handrail (10) is fixedly mounted at one end of the base plate (8) for driving the vehicle body (1) to move.
5. A sunflower harvesting device according to claim 4, characterized in that, A collection box (11) is provided on the base plate (8) for collecting sunflowers.
6. A sunflower harvesting device according to claim 1, characterized in that, The harvesting assembly includes a harvesting plate (12), on which a harvesting groove (13) is provided. A cutting disc (14) is also rotatably provided on the harvesting plate (12), which is located below the harvesting groove (13) and is used for harvesting sunflowers.
7. A sunflower harvesting device according to claim 6, characterized in that, The width of the harvesting trough (13) on the side away from the sliding plate (3) is greater than the width on the side closer to the sliding plate (3).
8. A sunflower harvesting device according to claim 6, characterized in that, The harvesting plate (12) includes a mounting plate (15) and a front guide plate (16). The cutting disc (14) is rotatably mounted on the mounting plate (15). The front guide plate (16) is located on the side of the mounting plate (15) away from the sliding plate (3). The cutting groove (13) is located on the front guide plate (16).
9. A sunflower harvesting device according to claim 6, characterized in that, A rear guide plate (17) is fixedly provided on the sliding plate (3). The rear guide plate (17) is located on the side of the sliding plate (3) away from the harvesting plate (12). The rear guide plate (17) is inclined.