Planetary gear train seed metering mechanism of corn precision seeder
By designing the adjustment and sowing mechanism of the precision corn seeder, the problem of the inability to adjust the spacing between the moving wheels was solved, enabling precision sowing and adapting to the sowing needs of different ground conditions, thereby improving sowing efficiency and avoiding seed damage.
Patent Information
- Application Number
- CN202520578236.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-02-24
- Estimated Expiration
- 2035-03-31
AI Technical Summary
Existing corn planters cannot adjust the spacing between the moving wheels, which limits their use and makes them prone to damaging other seeds.
A precision corn seeder with a gear planetary gear system seeding mechanism was designed, including an adjustment mechanism and a seeding mechanism. Precision seeding is achieved by controlling the rotation speed of the planetary gears through a variable speed motor, and the spacing between the moving wheels can be adjusted by the adjustment mechanism to adapt to different ground conditions.
It enables precision sowing according to different needs, avoids seed damage, and improves sowing efficiency and applicability.
Smart Images

Figure CN223928872U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corn planting technology, and in particular to a corn precision planter gear planetary gear system seed metering mechanism. Background Technology
[0002] A corn planter is an agricultural machine specifically designed for planting corn. Its main function is to accurately sow corn seeds into the soil at specific row and plant spacing. Corn planters can effectively improve sowing efficiency, ensure even seed distribution, and thus promote good corn growth.
[0003] Existing corn planters cannot adjust the spacing between the moving wheels during use, which greatly limits their practical application. Furthermore, the device is prone to crushing other corn seeds during use, resulting in reduced production efficiency.
[0004] Therefore, in view of the problem that the existing corn planter cannot adjust the distance between the moving wheels during use, which leads to great limitations in actual use, this utility model has set an adjustment mechanism to adjust the distance between the moving wheels, so that the device can be adapted to different planting situations and at the same time avoids damage to other seeds during planting. Utility Model Content
[0005] To overcome the problem that common corn planters cannot adjust the spacing between the moving wheels during use, which leads to significant limitations in practical applications.
[0006] The technical solution of this utility model is as follows: a corn precision planter with a gear planetary gear system seeding mechanism, comprising a storage box, a housing, and a connecting block. A feeding mechanism is connected to the inner side of the storage box. The housing is provided on the side of the storage box. A handle is connected to the side of the housing. Connecting blocks are symmetrically arranged at the lower end of the storage box. A circular shell is connected to the connecting block. A seeding mechanism is connected to the connecting block. The seeding mechanism is connected to the housing. An adjustment mechanism is provided on the side of the housing.
[0007] Preferably, the feeding mechanism includes a feeding port, a guide frame, a guide shell, and a protrusion. The upper end of the storage box is provided with a feeding port, the inner side of the storage box is provided with a guide frame, the lower end of the storage box is provided with a discharging port, the lower end of the storage box is connected to a guide shell, a drive motor is connected to the side of the storage box, the output shaft of the drive motor is connected to a connecting rod, a support block is connected to the bottom of the inside of the storage box, and the connecting rod is connected to a protrusion.
[0008] Preferably, the connecting rod is rotatably connected to the storage box, the connecting rod is rotatably connected to the support block, and the protrusion is disposed below the guide frame.
[0009] Preferably, the seeding mechanism includes a circular shell, a planetary gear body, a variable speed motor, a storage trough, and a discharge trough. The planetary gear body is arranged inside the circular shell, and the variable speed motor is connected to both sides of the planetary gear body. Limiting plates are symmetrically arranged on the sides of the planetary gear body, and blocks are arranged at equal angles on the sides of the limiting plates. The storage trough is arranged on the sides of the blocks, and the discharge trough is opened at the lower end of the circular shell.
[0010] Preferably, the variable speed motor is located on the side of the circular shell, and the length and width of the stop block are greater than the length and width of the discharge chute.
[0011] Preferably, the adjustment mechanism includes a square column, a threaded rod, a guide plate, a connecting plate, a telescopic column, and a movable wheel. The square column is provided on the side of the housing, and a slider is symmetrically slidably provided on the inner side of the square column. The slider is connected to the threaded rod on the side. The guide plate is symmetrically provided on the side of the housing, and the threaded rod is connected to the connecting plate. The rotating block is symmetrically rotatably provided on the side of the circular shell, and the rotating block is connected to the telescopic column. The extended end of the telescopic column is connected to the movable wheel.
[0012] Preferably, the threaded rod is threadedly connected to the square column, the guide plate is slidably connected to the threaded rod, the connecting plate is rotatably connected to the protruding end of the telescopic column, and the telescopic column penetrates the side wall of the housing.
[0013] The beneficial effects of this utility model are:
[0014] 1. Equipped with a seeding mechanism, the rotation speed of the planetary gear body can be controlled by a variable speed motor during use, thus facilitating precision seeding according to different needs. At the same time, the planetary gear body drives the stop block and the storage trough to rotate during rotation. When the storage trough rotates to the bottom of the guide shell, the corn seeds to be sown enter the storage trough. Then, when the storage trough rotates to the discharge trough, the corn seeds fall into the ground, thus achieving sowing. During use, the feeding speed can be controlled by controlling the rotation speed of the planetary gear body, thus facilitating precision seeding.
[0015] 2. An adjustment mechanism is provided. During use, the square column is rotated according to the width of the sowing ground, which drives the slider and the threaded rod to move. During the movement of the threaded rod, the connecting plate is moved, and at the same time, the connecting plate drives the telescopic column to extend and retract. During the extension and retraction of the telescopic column, the distance between the two moving wheels is adjusted, so that the device can be adapted to different ground surfaces. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.
[0017] Figure 2 The diagram shown is a three-dimensional structural schematic of the circular shell of this utility model.
[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the feeding mechanism of this utility model;
[0019] Figure 4 This utility model is shown. Figure 3 Enlarged structural diagram of point A in the middle;
[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the material guide frame of this utility model;
[0021] Figure 6 The diagram shown is a three-dimensional structural schematic of the seeding mechanism of this utility model;
[0022] Figure 7 This utility model is shown. Figure 6 Enlarged structural diagram at point B;
[0023] Figure 8 The diagram shown is a three-dimensional structural schematic of the planetary gear body of this utility model;
[0024] Figure 9 The diagram shown is a three-dimensional structural schematic of the adjustment mechanism of this utility model.
[0025] Explanation of reference numerals in the attached drawings: 1. Storage bin; 2. Feeding mechanism; 21. Feed inlet; 22. Guide frame; 23. Discharge outlet; 24. Guide shell; 25. Drive motor; 26. Connecting rod; 27. Support block; 28. Protrusion; 3. Shell; 4. Handle; 5. Connecting block; 6. Seeding mechanism; 61. Circular shell; 62. Planetary gear body; 63. Variable speed motor; 64. Limiting plate; 65. Stop block; 66. Storage trough; 67. Discharge trough; 7. Adjustment mechanism; 71. Square column; 72. Slider; 73. Threaded rod; 74. Guide plate; 75. Connecting plate; 76. Rotating block; 77. Telescopic column; 78. Moving wheel. Detailed Implementation
[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0027] Please see Figures 1-9This utility model provides a technical solution: a corn precision seeder with a gear planetary gear system seeding mechanism, including a storage box 1, a housing 3 and a connecting block 5. The storage box 1 is connected to a feeding mechanism 2. The housing 3 is provided on the side of the storage box 1. A handle 4 is connected to the side of the housing 3. The connecting block 5 is symmetrically arranged at the lower end of the storage box 1. The connecting block 5 is connected to a circular shell 61. The connecting block 5 is connected to a seeding mechanism 6. The housing 3 is connected to the seeding mechanism 6. An adjustment mechanism 7 is provided on the side of the housing 3.
[0028] The feeding mechanism 2 includes a feed inlet 21, a guide frame 22, a guide shell 24, and a protrusion 28. The upper end of the storage box 1 is provided with the feed inlet 21, the inner side of the storage box 1 is provided with the guide frame 22, the lower end of the storage box 1 is provided with the discharge port 23, the lower end of the storage box 1 is connected to the guide shell 24, the side of the storage box 1 is connected to the drive motor 25, the output shaft of the drive motor 25 is connected to the connecting rod 26, the bottom of the inside of the storage box 1 is connected to the support block 27, the connecting rod 26 is connected to the protrusion 28, the connecting rod 26 is rotatably connected to the storage box 1, the connecting rod 26 is rotatably connected to the support block 27, and the protrusion 28 is located below the guide frame 22. During use, the raw material is added into the storage box 1 through the feed inlet 21, and then conveyed to the discharge port 23 through the guide frame 22, and then conveyed to the guide shell 24 through the discharge port 23.
[0029] The seeding mechanism 6 includes a circular shell 61, a planetary gear body 62, a variable speed motor 63, a storage trough 66, and a discharge trough 67. The planetary gear body 62 is located inside the circular shell 61. The variable speed motor 63 is connected to both sides of the planetary gear body 62. Limiting plates 64 are symmetrically arranged on the sides of the planetary gear body 62. Stops 65 are arranged at equal angles on the sides of the limiting plates 64. The storage trough 66 is located on the side of the stop 65. The discharge trough 67 is located at the lower end of the circular shell 61. The variable speed motor 63 is located on the side of the circular shell 61. The length and width of the stop 65 are... The length and width of the discharge trough 67 are greater than the actual dimensions of the planetary gear body 62. During use, the rotation speed of the planetary gear body 62 is controlled by the variable speed motor 63, which facilitates precise sowing according to different needs. At the same time, the rotation of the planetary gear body 62 drives the limit plate 64 to rotate, and simultaneously drives the stop block 65 and the storage trough 66 to rotate. When the storage trough 66 rotates to the bottom of the guide shell 24, the corn seeds enter the storage trough 66. When the storage trough 66 rotates to the discharge trough 67, the corn seeds fall into the ground, thus realizing sowing.
[0030] The adjusting mechanism 7 includes a square column 71, a threaded rod 73, a guide plate 74, a connecting plate 75, a telescopic column 77, and a moving wheel 78. A square column 71 is located on the side of the housing 3. A slider 72 is symmetrically slidably arranged inside the square column 71. The threaded rod 73 is connected to the side of the slider 72. Guide plates 74 are symmetrically arranged on the side of the housing 3. The threaded rod 73 is connected to the connecting plate 75. A rotating block 76 is symmetrically rotatably arranged on the side of the circular housing 61. The rotating block 76 is connected to the telescopic column 77. The extended end of the telescopic column 77 is connected to the moving wheel 78. The threaded rod 73 is threaded with the square column 71. The guide plate 74 is slidably connected to the threaded rod 73, and the connecting plate 75 is rotatably connected to the protruding end of the telescopic column 77. The telescopic column 77 passes through the side wall of the housing 3. During use, the square column 71 rotates according to the width of the sowing area. During the rotation of the square column 71, the slider 72 and the threaded rod 73 move. During the movement, the threaded rod 73 slides inside the guide plate 74 and pushes the connecting plate 75 to move, thereby driving the telescopic column 77 to extend and retract. During the extension and retraction of the telescopic column 77, the moving wheel 78 moves, thereby adjusting the spacing of the moving wheel 78.
[0031] Working principle: According to Figure 9 First, during use, the square column 71 is rotated according to the width of the sowing ground. During the rotation of the square column 71, the slider 72 and the threaded rod 73 are moved. During the movement, the threaded rod 73 slides inside the guide plate 74 and pushes the connecting plate 75 to move, thereby driving the telescopic column 77 to extend and retract. During the extension and retraction of the telescopic column 77, the moving wheel 78 is moved, thereby adjusting the spacing of the moving wheel 78. This makes the device suitable for different ground surfaces and avoids crushing other corn seeds.
[0032] according to Figures 1 to 5 Then, during use, the raw material is added into the storage box 1 through the feed port 21, and then conveyed to the discharge port 23 through the guide frame 22. Then, it is conveyed to the guide shell 24 through the discharge port 23. At the same time, during the feeding process, the drive motor 25 is started to drive the connecting rod 26 to rotate. During the rotation of the connecting rod 26, the protrusion 28 is driven to rotate. During the rotation, the protrusion 28 hits the guide frame 22, so that the guide frame 22 is in a vibrating state, thereby assisting the feeding.
[0033] according to Figures 6 to 8 During use, the rotation speed of the planetary gear body 62 is controlled by the variable speed motor 63, which facilitates precision sowing according to different needs. At the same time, the rotation of the planetary gear body 62 drives the limit plate 64 to rotate, and also drives the stop block 65 and the storage trough 66 to rotate. When the storage trough 66 rotates to below the guide shell 24, the corn seeds enter the storage trough 66. When the storage trough 66 rotates to the discharge trough 67, the corn seeds fall into the ground, thus realizing sowing. The feeding speed can be controlled by controlling the rotation speed of the planetary gear body 62.
[0034] In this device, the drive motor 25 and the variable speed motor 63 are connected to an external power source via a power cord and then started. The drive motor 25 and the variable speed motor 63 are known and existing technologies on the market and will not be described in detail here.
[0035] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A precision corn seeder with a planetary gear train seed dispensing mechanism, comprising a storage bin (1), a housing (3), and a connecting block (5), characterized in that: The storage bin (1) is connected to a feeding mechanism (2) on its inner side. The storage bin (1) is provided with a housing (3) on its side. The housing (3) is connected with a handle (4) on its side. The storage bin (1) is symmetrically provided with connecting blocks (5) at its lower end. The connecting blocks (5) are connected with a circular shell (61). The connecting blocks (5) are connected with a sowing mechanism (6). The housing (3) is connected with a sowing mechanism (6). The housing (3) is provided with an adjustment mechanism (7) on its side.
2. The seed metering mechanism of a precision corn seeder with a planetary gear train according to claim 1, characterized in that: The feeding mechanism (2) includes a feed inlet (21), a guide frame (22), a guide shell (24), and a protrusion (28). The upper end of the storage box (1) is provided with a feed inlet (21), the inner side of the storage box (1) is provided with a guide frame (22), the lower end of the storage box (1) is provided with a discharge port (23), the lower end of the storage box (1) is connected to a guide shell (24), the side of the storage box (1) is connected to a drive motor (25), the output shaft of the drive motor (25) is connected to a connecting rod (26), the bottom of the storage box (1) is connected to a support block (27), and the connecting rod (26) is connected to a protrusion (28).
3. The seed metering mechanism of a precision corn seeder with a planetary gear train according to claim 2, characterized in that: The connecting rod (26) is rotatably connected to the storage box (1), the connecting rod (26) is rotatably connected to the support block (27), and the protrusion (28) is located below the guide frame (22).
4. The seed metering mechanism of a precision corn seeder with a planetary gear train according to claim 1, characterized in that: The seeding mechanism (6) includes a circular shell (61), a planetary gear body (62), a variable speed motor (63), a storage trough (66), and a discharge trough (67). The planetary gear body (62) is arranged inside the circular shell (61). The variable speed motor (63) is connected to both sides of the planetary gear body (62). Limiting plates (64) are symmetrically arranged on the sides of the planetary gear body (62). Stops (65) are arranged at equal angles on the sides of the limiting plates (64). The storage trough (66) is arranged on the sides of the stops (65). The discharge trough (67) is opened at the lower end of the circular shell (61).
5. The seed metering mechanism of a corn precision seeder with a planetary gear train according to claim 4, characterized in that: The variable speed motor (63) is located on the side of the circular shell (61), and the length and width of the stop block (65) are greater than the length and width of the discharge chute (67).
6. The seed metering mechanism of a precision corn seeder with a planetary gear train according to claim 1, characterized in that: The adjustment mechanism (7) includes a square column (71), a threaded rod (73), a guide plate (74), a connecting plate (75), a telescopic column (77), and a moving wheel (78). The square column (71) is provided on the side of the housing (3). A slider (72) is symmetrically slidably provided on the inner side of the square column (71). The threaded rod (73) is connected to the side of the slider (72). The guide plate (74) is symmetrically provided on the side of the housing (3). The threaded rod (73) is connected to the connecting plate (75). A rotating block (76) is symmetrically rotatably provided on the side of the circular shell (61). The telescopic column (77) is connected to the rotating block (76). The moving wheel (78) is connected to the extended end of the telescopic column (77).
7. The seed metering mechanism of a corn precision seeder with a planetary gear train according to claim 6, characterized in that: The threaded rod (73) is threadedly connected to the square column (71), the guide plate (74) is slidably connected to the threaded rod (73), the connecting plate (75) is rotatably connected to the protruding end of the telescopic column (77), and the telescopic column (77) penetrates the side wall of the shell (3).