Seed metering mechanism
By designing a variable-line spacing seed arrangement mechanism, the problem of difficulty in adapting to multiple varieties of industries in the prior art is solved, uniform seed seeds are uniformly sorted and efficient, and labor intensity and equipment costs are reduced.
Patent Information
- Application Number
- CN202421088583.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-17
- Publication Date
- 2025-08-05
- Estimated Expiration
- 2034-05-17
AI Technical Summary
Existing seed arrangements are generally targeted at fixed seed distances and single types, which are difficult to adapt to the seed sequencing needs of multiple industries, resulting in high labor intensity and low efficiency.
A seeding mechanism including seed box, valve plate, internal storage seed plate, protective shell, seed plate, seed pipe plate, support wheel, ball bearing, stepper motor, drive shaft and spring plate assembly is designed. By adjusting the rotation frequency of the transmission shaft and the gear position of the valve plate, variable row spacing and seeding operations of multiple industries are realized.
The uniform seeding of different types of seeds is achieved, which reduces equipment costs, improves mechanical utilization, avoids seed blockage, and improves seed ejaculation efficiency.
Smart Images
Figure CN223182645U_ABST
Abstract
Description
Technical field
[0001] The utility model relates to a seed-sowing mechanism for seed-sowing equipment, in particular to a seed-sowing mechanism for granular seeds. [Background Technology]
[0002] Manual seeding is labor-intensive and inefficient. Seeding is a key and crucial link in seeding equipment. The seeding mechanisms used in seeding machines currently on the market are generally designed for fixed seed spacing and single-variety seeding. Therefore, there is an urgent need to develop a seeding mechanism for agricultural seeding machinery with variable row spacing that is suitable for seeding operations in multiple varieties of seed industries. Only a few parts need to be adjusted or replaced to meet the seeding tasks of different seed industries, thereby reducing equipment costs and improving machinery utilization. [Utility Model Content]
[0003] In order to achieve the above object, the technical solution of the utility model is as follows:
[0004] A seeding mechanism comprises a seed box (1), a valve plate (2), an inner seed storage disc (3), a protective shell (4), a seed disc (5), a seed guide tube disc (6), a support wheel (7), a ball bearing (8), a stepping motor (10), a transmission shaft (9), a seed temporary storage space (12), and a spring sheet assembly (13). The seed box (1) is fixedly connected to the protective shell (4) and the seed guide tube disc (6) by bolts (18); the output shaft of the stepping motor (10) is connected to the transmission shaft (9), and the motion is transmitted to the inner seed storage disc (3), the seed disc (5), and the seed guide tube disc via the ball bearing (8).
[0005] The seed box is located above the seeding mechanism and is used to store seeds. The protective shell (4) is located below the seeding mechanism. The valve plate (2) is rotatably connected via a rotating pin located in the middle of the bottom surface of the seed box (1). The rotation of the valve plate is used to open or close the opening of the seed box.
[0006] The protective shell (4) is equipped with the inner seed storage disc (3), the seed disc (5) and the seed guide tube disc (6); the inner seed storage disc (3) forms the seed temporary storage space (12) through the spring sheet assembly (13) for storing seeds from the seed box; the spring sheet assembly (13) includes an inner support frame (15), a rotating shaft pin (14) and an outer support frame (17); the rotating shaft pin (14) connects the inner support frame (15) and the support wheel (7) through a rotating pair, and at the same time The outer support frame (17) is connected to the outer support frame by rotation through another rotating pin with a spring (16) on the top thereof to form the seed temporary storage space (12). The support wheel (7) is located at the lower end of the spring sheet assembly (13) and passes through the seed disc (5). The support wheel (7) and the spring sheet assembly (13) have three groups of evenly distributed circumferential directions of the seed disc (5). The support wheel (7) is located on the upper surface of the seed disc (5), and a seed guide tube disc (6) is installed on the lower surface of the seed disc (5).
[0007] The ball bearing (8) is installed in the inner holes of the cross sections of the seed disc (5), the inner seed storage disc (3) and the seed guide tube disc (6); the transmission shaft (9) is installed in the inner hole of the ball bearing (8); when the transmission shaft (9) is driven to rotate by the stepper motor (10), the inner seed storage disc (3), the seed disc (5) and the support wheel (7) rotate around the transmission shaft (9) in the protective shell (4); each time the shaft rotates one circle, the seeds are discharged from the seed discharge port of the seed guide tube disc (6) once; and the seed discharge frequency is adjusted by adjusting the rotation frequency of the transmission shaft (9).
[0008] The seed tray (5) and the inner seed storage tray (3) are both provided with seed through holes, the hole diameter of which is the maximum size of the seeds to be discharged; the lower end surface of the seed guide tube tray (6) is provided with a seed discharge port, and a seed discharge pipe is welded to the outlet of the seed discharge port.
[0009] The width of the valve plate (2) is sufficient to close the bottom gate (11), and the seed plate (5) is provided with multiple types of through holes evenly distributed around the periphery.
[0010] Compared with the seeding mechanism used in the existing seeding machine, the utility model has the following effects: during seeding operation, different types of seed discs are replaced, the motor is started, and the valve plate is manually moved to different gears. The size of the opening of the valve plate (2) at different gears is controlled to adapt to different types of seeding. The outer gate (11) at the bottom of the seed box (1) is opened, and the support wheel (7) and the three spring sheet assemblies (13) rotate around the transmission shaft with the seed disc (5) (3) to ensure that the seeds entering the seeding port are evenly distributed and effectively prevent the seeds from clogging the seeding port. The seeds fall from the gate into the seed temporary storage space (12) and then enter the seed guide tube disc seeding port for discharge. The seed discharge frequency interval can be changed by adjusting the speed of the stepping motor (10).
Brief Description of the Drawings
[0011] Attachment Figure 1 It is a cross-sectional view of the present utility model.
[0012] Attachment Figure 2 It is a blasting diagram of the present utility model.
[0013] Attachment Figure 3 It is a schematic diagram of a seed tray of the present utility model.
[0014] Attachment Figure 4 It is a top view of the utility model.
[0015] Attachment Figure 5 It is a schematic diagram of the structure of the spring leaf assembly.
[0016] Figure: 1. Seed box 2. Valve plate 3. Inner seed storage tray 4. Protective shell 5. Seed tray 6. Seed guide tube tray 7. Support wheel 8. Ball bearing 9. Drive shaft 10. Stepper motor 11. Bottom gate 12. Seed temporary storage space 13. Spring plate assembly 14. Rotating pin 15. Inner support frame 16. Spring 17. Outer support frame 18. Bolt [Specific implementation method]
[0017] The following is a further description of the present invention in conjunction with the accompanying drawings: Figure 1 The accompanying drawings of the embodiments are simplified and are intended solely to clearly and concisely illustrate the embodiments of the present invention. The technical solutions presented in the accompanying drawings are specific embodiments of the present invention and are not intended to limit the scope of the claimed invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are also within the scope of protection of the present invention.
[0018] In the description of the present invention, the terms "upper", "middle", "lower", "bottom", and "inner" are intended to have a broad meaning and positional meaning. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0019] like Figure 1-5 As shown, a seeding mechanism comprises a seed box (1), a valve plate (2), an inner seed storage disc (3), a protective shell (4), a seed disc (5), a seed guide tube disc (6), a support wheel (7), a ball bearing (8), a stepper motor (10), a transmission shaft (9), a seed temporary storage space (12), and a spring sheet assembly (13). The seed box (1) is fixedly connected to the protective shell (4) and the seed guide tube disc (6) by bolts (18). The output shaft of the stepper motor (10) is connected to the transmission shaft (9), and the motion is transmitted to the inner seed storage disc (3), the seed disc (5), and the seed guide tube disc (6) through the ball bearing (8).
[0020] The seed box is located above the seeding mechanism and is used to store seeds. The protective shell (4) is located below the seeding mechanism. The valve plate (2) is rotatably connected via a rotating pin located in the middle of the bottom surface of the seed box (1). The rotation of the valve plate is used to open or close the opening of the seed box.
[0021] like Figure 1-3 As shown, the protective shell (4) is equipped with the inner seed storage disc (3), the seed disc (5) and the seed guide tube disc (6); the inner seed storage disc (3) forms the seed temporary storage space (12) through the spring sheet assembly (13) for storing seeds from the seed box; the spring sheet assembly (13) includes an inner support frame (15), a rotating shaft pin (14) and an outer support frame (17); the rotating shaft pin (14) connects the inner support frame (15) and the support wheel (7) through a rotating pair. At the same time, the outer support frame (17) is rotated and connected through another rotating pin with a spring (16) on its top to form the seed temporary storage space (12). The support wheel (7) is located at the lower end of the spring sheet assembly (13) and passes through the seed disc (5). The support wheel (7) and the spring sheet assembly (13) have three groups of evenly distributed circumferential directions of the seed disc (5). The support wheel (7) is located on the upper surface of the seed disc (5), and a seed guide tube disc (6) is installed on the lower surface of the seed disc (5).
[0022] like Figure 1 As shown, the ball bearing (8) is installed in the inner hole of the cross section of the seed disc (5), the inner seed storage disc (3) and the seed guide tube disc (6), and the transmission shaft (9) is installed in the inner hole of the ball bearing (8). When the transmission shaft (9) is driven to rotate by the stepper motor (10), the inner seed storage disc (3), the seed disc (5) and the support wheel (7) rotate around the transmission shaft (9) in the protective shell (4). Every time the shaft rotates one circle, the seeds are discharged from the seed discharge port of the seed guide tube disc (6) once. The seed discharge frequency is adjusted by adjusting the rotation frequency of the transmission shaft (9).
[0023] like Figure 1 As shown, the seed tray (5) and the inner seed storage tray (3) are both provided with seed through holes, the hole diameter of which is the maximum size of the seeds to be discharged, and the lower end surface of the seed guide tube tray (6) is provided with a seed discharge port, and a seed discharge tube is welded to the outlet of the seed discharge port.
[0024] like Figure 5 As shown, the width of the valve plate (2) can close the bottom gate (11), and the seed plate (5) is equipped with multiple through holes evenly distributed around it. Figure 5 What is shown is a schematic diagram of the structure of seed trays of different sizes, large, medium and small, designed according to the seed particle size, which is only one embodiment of the seed tray of the present invention.
[0025] Compared with the seeding mechanism used in the existing seeding machine, the utility model has the following effects: during seeding operation, different types of seed discs are replaced, the motor is started, and the valve plate is manually shifted to different gears. The size of the opening of the valve plate (2) is controlled by different gears to adapt to different types of seeding. The outer gate (11) at the bottom of the seed box (1) is opened, and the support wheel (7) and the three spring sheet assemblies (13) rotate around the transmission shaft along with the seed disc (5) and the inner seed storage disc (3) to ensure that the seeds entering the seeding port are evenly distributed and separated, and effectively prevent the seeds from clogging the seeding port. The seeds fall from the gate into the seed temporary storage space (12) and then enter the seed guide tube disc seeding port for discharge. The seed discharge frequency interval can be changed by adjusting the speed of the stepping motor (10).
[0026] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A seeding mechanism, characterized in that: The invention comprises a seed box (1), a valve plate (2), an inner seed storage disc (3), a protective shell (4), a seed disc (5), a seed guide tube disc (6), a support wheel (7), a ball bearing (8), a stepper motor (10), a transmission shaft (9), a seed temporary storage space (12), and a spring sheet assembly (13). The seed box (1) is fixedly connected to the protective shell (4) and the seed guide tube disc (6) by bolts (18). The output shaft of the stepper motor (10) is connected to the transmission shaft (9), and the motion is transmitted to the inner seed storage disc (3), the seed disc (5), and the seed guide tube disc through the ball bearing (8).
2. A seed metering mechanism according to claim 1, characterized in that: The seed box is located above the seeding mechanism, the protective shell (4) is located below the seeding mechanism, and the valve plate (2) is rotatably connected via a rotating pin located in the middle of the bottom surface of the seed box (1). The rotation of the valve plate is used to open or close the opening of the seed box.
3. A seed metering mechanism according to claim 1, characterized in that: The protective shell (4) is equipped with the inner seed storage disc (3), the seed disc (5) and the seed guide tube disc (6); the inner seed storage disc (3) forms the seed temporary storage space (12) through the spring sheet assembly (13); the spring sheet assembly (13) includes an inner support frame (15), a rotating shaft pin (14) and an outer support frame (17); the rotating shaft pin (14) connects the inner support frame (15) and the support wheel (7) through a rotating pair, and at the same time, the outer support frame (17) is rotated and connected through another rotating pin with a spring (16) on the top thereof to form the seed temporary storage space (12); the support wheel (7) is located at the lower end of the spring sheet assembly (13) and passes through the seed disc (5); the support wheel (7) and the spring sheet assembly (13) have three groups of evenly distributed circumferential directions of the seed disc (5); the support wheel (7) is located on the upper surface of the seed disc (5), and the seed guide tube disc (6) is installed on the lower surface of the seed disc (5).
4. A seed metering mechanism according to claim 1, characterized in that: The ball bearing (8) is installed in the inner holes of the cross sections of the seed disc (5), the inner seed storage disc (3) and the seed guide tube disc (6); the transmission shaft (9) is installed in the inner hole of the ball bearing (8); when the transmission shaft (9) is driven to rotate by the stepper motor (10), the inner seed storage disc (3), the seed disc (5) and the support wheel (7) rotate around the transmission shaft (9) in the protective shell (4); each time the shaft rotates one circle, the seeds are discharged from the seed discharge port of the seed guide tube disc (6) once; and the seed discharge frequency is adjusted by adjusting the rotation frequency of the transmission shaft (9).
5. A seed metering mechanism according to claim 1, characterized in that: The seed tray (5) and the inner seed storage tray (3) are both provided with seed through holes, the hole diameter of which is the maximum size of the seeds to be discharged; the lower end surface of the seed guide tube tray (6) is provided with a seed discharge port, and a seed discharge pipe is welded to the outlet of the seed discharge port.
6. A seed metering mechanism according to claim 1, characterized in that: The width of the valve plate (2) is sufficient to close the bottom gate (11), and the seed plate (5) is provided with multiple types of through holes evenly distributed around the periphery.