Secondary soil covering disc device for peanut planter

Abstract

This utility model discloses a secondary soil-applying disc device for a peanut planter, relating to the fields of planting, sowing, and fertilization. The device includes a frame with four feed hoppers mounted on its upper side and four turntable distribution modules mounted on its lower side. Each turntable distribution module is connected to one of the four feed hoppers, and a discharge pipe is fixedly connected to the right side of each module. A power transmission box is fixedly connected to the upper side of the frame, driving the internal structure of the four turntable distribution modules. A moving wheel module is mounted on the lower side of the frame. Four soil-covering mechanisms and an adjustment mechanism are also provided on the frame. This design automatically cleans the soil on the soil-applying disc during use, preventing sticky soil from adhering to the disc and ensuring uniform soil coverage for peanut seeds, resulting in consistent peanut germination times.

Description

Technical Field

[0001] This utility model relates to the fields of planting, sowing, and fertilization technology, specifically to a secondary soil-filling disc device for a peanut planter. Background Technology

[0002] A peanut planter is an agricultural machine specifically designed for peanut cultivation. It can perform multiple operations during the peanut planting process, improving planting efficiency and quality. The secondary soil-covering disc device on the peanut planter is an important component for covering the seeds with soil. Installed after the seed metering device, its function is to first cover the seed layer with fine, moist soil from the seedbed, and then cover it with a large amount of ridge soil to ensure seed germination.

[0003] During the use of peanut planters, various situations may arise due to different soil environments. When planting in relatively moist soil, the soil becomes sticky and adheres to the surface of the disc, forming irregular clods or mud layers. This prevents the disc from evenly scraping and covering the soil as it rotates, resulting in uneven soil coverage for the peanut seeds. Consequently, the peanuts germinate at different times, with some seeds germinating late due to excessive soil coverage and others failing to germinate due to insufficient contact with moist soil. Utility Model Content

[0004] The purpose of this utility model is to solve at least one of the technical problems existing in the prior art, and to provide a secondary soil-applying disc device for peanut planters, which has the function of automatically cleaning the soil on the disc during use, thereby avoiding the situation where sticky soil adheres to the disc, ensuring the uniformity of soil covering for peanut seeds, and making the peanut germination time consistent.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a secondary soil-feeding disc device for a peanut planter, including a frame, four feed hoppers installed on the upper side of the frame, and four turntable distribution modules installed on the lower side of the frame, with the four turntable distribution modules respectively connected to the four feed hoppers;

[0006] The right side of each of the four turntable sorting modules is fixedly connected to a feeding pipe, and the upper side of the frame is fixedly connected to a power transmission box, which drives the internal structure of the four turntable sorting modules.

[0007] A moving wheel module is installed on the lower side of the frame. Four soil covering mechanisms are set on the frame. The four soil covering mechanisms can cover the peanut seeds sown by the four feeding pipes with soil. The four soil covering mechanisms have the same connection structure and are arranged on the left and right.

[0008] The soil covering mechanism includes a fixed block, a limiting chute, a lifting rod, a limiting slider, a stop block, a connecting rod, a fixed column, a rotating shaft, a flange, a soil-filling disc, a fixing frame, and a scraper.

[0009] The frame is equipped with an adjustment mechanism, which allows for the adjustment of the height of the four soil covering mechanisms;

[0010] The adjustment mechanism includes a transmission block, a transmission groove, four rotating shafts, four threaded rods, four worm gears, a motor assembly, and a worm.

[0011] Preferably, the fixing block is installed on the lower side of the frame, the upper side of the fixing block extends into the interior of the frame, the upper side of the fixing block extends out of the frame, and the fixing block is fixedly connected to the frame.

[0012] The limiting slide groove is formed inside the fixed block. The limiting slide groove is a rectangular groove, and the lifting rod is slidably connected inside the limiting slide groove.

[0013] The lower end of the lifting rod extends out to form a fixed block, and the limiting slider is fixedly sleeved on the outer surface of the lifting rod.

[0014] Preferably, the limiting slider is slidably connected inside the limiting groove, the limiting slider is a rectangular block structure, and the stop block is fixedly connected to the lower end of the lifting rod;

[0015] The stop block is located on the lower side of the fixed block, the connecting rod is fixedly connected to the lower side of the stop block, and the fixed column is fixedly connected to the lower end of the connecting rod.

[0016] The fixed column is internally connected to a rotating shaft, and the right end of the rotating shaft extends out of the fixed column.

[0017] The flange is fixedly connected to the right end of the rotating shaft, and the upper soil disc is installed on the right side of the flange.

[0018] Preferably, the upper soil disc and the flange are fixedly connected by bolts, the fixing frame is sleeved on the outer surface of the connecting rod, and the fixing frame and the connecting rod are fixedly connected by bolts.

[0019] The fixing frame has an L-shaped structure, with the right side of the fixing frame extending to the right side of the upper soil disc, and the scraper is installed on the front side of the fixing frame;

[0020] The scraper and the fixing frame are fixedly connected by bolts. The scraper is located on the right side of the upper soil disc and is in contact with the right side of the upper soil disc.

[0021] Preferably, the transmission block is fixedly connected to the upper side of the frame, the transmission groove is opened inside the transmission block, and the four rotating shafts are rotatably connected to the top wall of the transmission groove.

[0022] The lower ends of the four rotating shafts extend into the interior of the four limiting slide grooves, and the four threaded rods are fixedly connected to the lower ends of the four rotating shafts.

[0023] Preferably, the lower ends of the four threaded rods are respectively threaded into the interior of the four lifting rods, and the four worm gears are respectively fixedly sleeved on the outer surfaces of the four rotating shafts;

[0024] All four worm gears are located inside the transmission slot, and the motor assembly is fixedly connected to the left side of the transmission block.

[0025] Preferably, the output end of the motor assembly is fixedly connected to a drive shaft, and the right end of the drive shaft extends rotatably into the interior of the drive groove.

[0026] The worm is fixedly connected to the right end of the drive shaft, and the right end of the worm is rotatably connected to the right wall of the drive groove. The worm is meshed with four worm wheels.

[0027] Compared with the prior art, the beneficial effects of this utility model are:

[0028] (1) The secondary soil-covering disc device of the peanut planter can automatically clean the soil on the soil-covering disc during use, thereby avoiding the situation where sticky soil adheres to the soil-covering disc, ensuring the uniformity of soil covering the peanut seeds, and making the peanut seedling emergence time consistent.

[0029] (2) The peanut planter's secondary soil-covering disc device has an adjustment mechanism that can synchronously adjust the height of the four soil-covering mechanisms according to different sowing depths and soil conditions. When the soil is relatively loose or the sowing is shallow, the height of the soil-covering mechanism can be lowered; when the soil is relatively hard or the sowing is deep, the height of the soil-covering mechanism can be raised, so that the device can adapt to various different farmland environments. Attached Figure Description

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0031] Figure 1 This is a schematic diagram of the secondary soil-applying disc device of the peanut planter of this utility model;

[0032] Figure 2 This is a schematic diagram of the cross-sectional connection structure between the frame and the transmission block of this utility model;

[0033] Figure 3 This is a schematic diagram of the cross-sectional connection structure of the fixing block of this utility model;

[0034] Figure 4 This is a schematic diagram of the right-side connection structure of the upper soil disc of this utility model.

[0035] Reference numerals: 1. Frame; 2. Feed hopper; 3. Turntable distribution module; 4. Feed pipe; 5. Power transmission box; 6. Moving wheel module; 7. Fixed block; 8. Limiting slide groove; 9. Lifting rod; 10. Limiting slider; 11. Stop block; 12. Connecting rod; 13. Fixed column; 14. Rotating shaft; 15. Flange; 16. Upper soil disc; 17. Fixed frame; 18. Scraper; 19. Transmission block; 20. Transmission groove; 21. Rotating shaft; 22. Threaded rod; 23. Worm gear; 24. Motor assembly; 25. Worm. Detailed Implementation

[0036] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0037] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and 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 this utility model.

[0038] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0039] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0040] Please see Figure 1-4This utility model provides a new technical solution: a secondary soil-applying disc device for a peanut planter, including a frame 1. Four feeding hoppers 2 are mounted on the upper side of the frame 1, and four turntable distribution modules 3 are mounted on the lower side of the frame 1. The four turntable distribution modules 3 are respectively connected to the four feeding hoppers 2. A discharge pipe 4 is fixedly connected to the right side of each of the four turntable distribution modules 3. A power transmission box 5 is fixedly connected to the upper side of the frame 1, driving the internal structure of the four turntable distribution modules 3. A moving wheel module 6 is mounted on the lower side of the frame 1. Four soil-covering mechanisms are provided on the frame 1, enabling sowing through the four discharge pipes 4. Peanut seeds are covered with soil. The four soil covering mechanisms have the same connection structure and are arranged on the left and right. The following description focuses on the left soil covering mechanism. The soil covering mechanism includes a fixed block 7, a limiting groove 8, a lifting rod 9, a limiting slider 10, a stop block 11, a connecting rod 12, a fixed column 13, a rotating shaft 14, a flange 15, a soil-filling disc 16, a fixed frame 17, and a scraper 18. An adjustment mechanism is provided on the frame 1. The height of the four soil covering mechanisms can be adjusted through the adjustment mechanism. The adjustment mechanism includes a transmission block 19, a transmission groove 20, four rotating shafts 21, four threaded rods 22, four worm gears 23, a motor assembly 24, and a worm 25.

[0041] Furthermore, the fixing block 7 is installed on the lower side of the frame 1, and the upper side of the fixing block 7 extends into the interior of the frame 1 and extends out of the frame 1. The fixing block 7 is fixedly connected to the frame 1. The limiting slide groove 8 is formed inside the fixing block 7. The limiting slide groove 8 is a rectangular groove. The lifting rod 9 is slidably connected inside the limiting slide groove 8. The lower end of the lifting rod 9 extends out of the fixing block 7. The limiting slider 10 is fixedly sleeved on the outer surface of the lifting rod 9. The limiting slider 10 is slidably connected inside the limiting slide groove 8. The limiting slider 10 is a rectangular block structure. The stop block 11 is fixedly connected to the lower end of the lifting rod 9. The stop block 11 is located at the lower side of the fixing block 7. The connecting rod 12 is fixedly connected to the lower side of the stop block 11. The fixing post 13 is fixedly connected to the connecting rod. At the lower end of 12, a rotating shaft 14 is rotatably connected inside the fixed column 13. The right end of the rotating shaft 14 extends out of the fixed column 13. The flange 15 is fixedly connected to the right end of the rotating shaft 14. The upper soil disc 16 is installed on the right side of the flange 15. The upper soil disc 16 and the flange 15 are fixedly connected by bolts. The fixing frame 17 is sleeved on the outer surface of the connecting rod 12. The fixing frame 17 and the connecting rod 12 are fixedly connected by bolts. The fixing frame 17 has an L-shaped structure. The right side of the fixing frame 17 extends to the right side of the upper soil disc 16. The scraper 18 is installed on the front side of the fixing frame 17. The scraper 18 and the fixing frame 17 are fixedly connected by bolts. The scraper 18 is located on the right side of the upper soil disc 16 and contacts the right side of the upper soil disc 16.

[0042] Furthermore, the transmission block 19 is fixedly connected to the upper side of the frame 1, the transmission groove 20 is opened inside the transmission block 19, the four rotating shafts 21 are all rotatably connected to the top wall of the transmission groove 20, the lower ends of the four rotating shafts 21 respectively extend into the interior of the four limiting slide grooves 8, the four threaded rods 22 are respectively fixedly connected to the lower ends of the four rotating shafts 21, the lower ends of the four threaded rods 22 respectively extend into the interior of the four lifting rods 9, the four worm gears 23 are respectively fixedly sleeved on the outer surface of the four rotating shafts 21, the four worm gears 23 are all set inside the transmission groove 20, the motor assembly 24 is fixedly connected to the left side of the transmission block 19, the output end of the motor assembly 24 is fixedly connected to the transmission shaft, the right end of the transmission shaft extends into the interior of the transmission groove 20, the worm 25 is fixedly connected to the right end of the transmission shaft, the right end of the worm 25 is rotatably connected to the right wall of the transmission groove 20, and the worm 25 is meshed with the four worm gears 23.

[0043] Furthermore, at the start of operation, peanut seeds are placed into four feed hoppers 2. Driven by four turntable distribution modules 3 connected to the feed hoppers 2 and powered by the power transmission box 5, the turntable distribution modules 3 orderly distribute and transport the peanut seeds to the discharge pipe 4 on the right. The seeds are sown into the soil through the discharge pipe 4. As the seeder moves, the moving wheel module 6 drives the entire device forward. The soil-raising disc 16 rotates with the device. The rotation of the soil-raising disc 16 drives the rotating shaft 14 to rotate synchronously through the flange 15. In turn, the soil-raising disc 16 turns over the soil and covers the freshly sown peanut seeds. The scraper 18 is used to clean the soil adhering to the soil-raising disc 16 to ensure the normal operation of the soil-raising disc 16.

[0044] When the height of the soil covering mechanism needs to be adjusted, the motor assembly 24 is started. The motor assembly 24 drives the transmission shaft to rotate, which in turn drives the worm 25 to rotate. Since the worm 25 is meshed with four worm wheels 23, the rotation of the worm 25 will drive the four worm wheels 23 to rotate synchronously. The four worm wheels 23 will then drive the four rotating shafts 21 to rotate. The four rotating shafts 21 will drive the four threaded rods 22 to rotate. Because the lifting rod 9 can only slide up and down under the restriction of the limiting slide groove 8 and the limiting slider 10, it cannot rotate. Therefore, the rotation of the threaded rods 22 will drive the lifting rod 9 to slide up and down in the limiting slide groove 8, thereby realizing the synchronous adjustment of the height of the four soil covering mechanisms to adapt to different sowing depths and soil conditions.

[0045] Furthermore, this method automatically cleans the soil on the topsoil disc 16 during use, thereby preventing sticky soil from adhering to the topsoil disc 16, ensuring the uniformity of soil covering the peanut seeds, and making the peanut germination time consistent.

[0046] Structural Description: Frame 1: This is the basic support structure for the secondary soil-applying disc device of the peanut planter. It provides a platform for the installation and fixation of all components of the entire device, similar to the frame structure of a building; it is the "skeleton" of the entire device.

[0047] Feed hopper 2: When starting work, peanut seeds are put into the four feed hoppers 2, which serve as the inlet for the seeds to enter the seeder.

[0048] Turntable distribution module 3: Four turntable distribution modules 3 are connected to four feed hoppers 2 respectively. Driven by the power transmission box 5, the turntable distribution module 3 distributes peanut seeds in an orderly manner, which plays a role in precisely controlling the seed delivery amount and rhythm. The turntable distribution module 3 is an existing structure, mainly composed of a distribution turntable, a drive shaft, a distribution cavity and other structures.

[0049] Feeding pipe 4: After sorting, the seeds are transported to the feeding pipe 4 on the right side, and the seeds are sown into the soil through the feeding pipe 4 to achieve precise seed placement.

[0050] Power transmission box 5: It is fixedly connected to the upper side of the frame 1 and provides power to the internal structure of the four turntable distribution modules 3 to ensure the smooth progress of the sowing process. The power transmission box 5 is an existing structure, mainly composed of input shaft, gear set, output shaft and transmission belt.

[0051] Moving wheel module 6: Installed on the lower side of the frame 1, it drives the entire device forward during the movement of the seeder, providing the power for sowing and covering operations. The moving wheel module 6 is an existing structure, mainly composed of moving wheels, drive shaft, bearing assembly and suspension bracket.

[0052] Fixed block 7: Installed on the lower side of frame 1, it provides fixed support for the soil covering mechanism, and the limiting groove 8 opened inside it provides a track for the sliding of lifting rod 9.

[0053] Limiting groove 8: It is a rectangular groove inside the fixed block 7, which restricts the lifting rod 9 to slide up and down, ensuring the stability of the height adjustment of the soil covering mechanism.

[0054] Lifting rod 9: It is slidably connected inside the limiting groove 8, and the height of the soil covering mechanism can be adjusted by sliding up and down to adapt to different sowing needs.

[0055] Limiting slider 10: It is fixedly sleeved on the outer surface of the lifting rod 9 and slidably connected inside the limiting slide groove 8. It has a rectangular block structure and plays a limiting and guiding role to ensure the stable sliding of the lifting rod 9.

[0056] Stop 11: Fixedly connected to the lower end of the lifting rod 9, and positioned on the lower side of the fixing block 7 to prevent the lifting rod 9 from sliding out of the fixing block 7, while also providing a connection point for the connecting rod 12.

[0057] Connecting rod 12: It is fixedly connected to the lower side of the stop block 11, and serves to connect the stop block 11 and the fixed column 13, and transmit the up and down movement of the lifting rod 9.

[0058] Fixed column 13: It is fixedly connected to the lower end of the connecting rod 12, and has a rotating shaft 14 rotatably connected inside, providing fixed support for the rotating shaft 14, and moving with the up and down movement of the connecting rod 12.

[0059] Rotating shaft 14: Rotatably connected inside the fixed column 13, with the right end rotating out of the fixed column 13, driving the flange 15 and the soil-covering disc 16 to rotate synchronously, thus realizing the soil-covering action.

[0060] Flange 15: Fixedly connected to the right end of the rotating shaft 14, used to connect the upper soil disc 16, ensuring that the upper soil disc 16 rotates synchronously with the rotating shaft 14.

[0061] Soil-covering disc 16: Installed on the right side of flange 15 and fixedly connected to flange 15 by bolts. During the movement of the seeder, it rotates with the device, turning over the soil and covering the freshly sown peanut seeds to complete the soil covering operation.

[0062] Fixing bracket 17: It is sleeved on the outer surface of the connecting rod 12 and fixedly connected to the connecting rod 12 by bolts. It has an L-shaped structure and extends to the right side of the upper soil disc 16 to provide an installation position for the scraper 18.

[0063] Scraper 18: Installed on the front side of the fixing frame 17 and fixedly connected to the fixing frame 17 by bolts. It is set on the right side of the soil-covering disc 16 and contacts the right side of the soil-covering disc 16. It is used to clean the soil adhering to the soil-covering disc 16, ensure the normal operation of the soil-covering disc 16, prevent sticky soil from adhering to the soil-covering disc 16, ensure the uniformity of soil covering for peanut seeds, and make the peanut seedlings emerge at the same time.

[0064] Transmission block 19: It is fixedly connected to the upper side of the frame 1, and has a transmission groove 20 inside to provide installation space for the transmission components of the adjustment mechanism.

[0065] Transmission groove 20: It is formed inside the transmission block 19 and accommodates transmission components such as rotating shaft 21, worm gear 23, and worm 25 to realize the transmission and conversion of power.

[0066] Rotating shaft 21: All four rotating shafts 21 are rotatably connected to the top wall of the transmission groove 20, and their lower ends extend into the interior of the four limiting slide grooves 8 respectively, driving the threaded rod 22 to rotate, thereby realizing the up and down movement of the lifting rod 9.

[0067] Threaded rods 22: Four threaded rods 22 are fixedly connected to the lower ends of four rotating shafts 21 respectively. The lower ends are threaded into the interior of four lifting rods 9 respectively. The lifting rods 9 are driven to slide up and down in the limiting slide groove 8 by rotation.

[0068] Worm Gear 23: Four worm gears 23 are respectively fixedly sleeved on the outer surface of four rotating shafts 21, and are set inside the transmission groove 20. They mesh with the worm 25 to realize the transmission and conversion of power.

[0069] Motor assembly 24: It is fixedly connected to the left side of the transmission block 19, and the output end is fixedly connected to the transmission shaft to provide power for the adjustment mechanism. Starting the motor assembly 24 drives the transmission shaft to rotate.

[0070] Worm 25: Fixedly connected to the right end of the transmission shaft, and the right end is rotatably connected to the right wall of the transmission groove 20. It meshes with the four worm gears 23. By rotating, it drives the four worm gears 23 to rotate synchronously, thereby realizing the synchronous adjustment of the height of the four soil covering mechanisms.

[0071] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A secondary soil-feeding disc device for a peanut planter, including a frame (1), four feed hoppers (2) are installed on the upper side of the frame (1), and four turntable distribution modules (3) are installed on the lower side of the frame (1), with the four turntable distribution modules (3) respectively connected to the four feed hoppers (2); The right side of each of the four turntable sorting modules (3) is fixedly connected to a feeding pipe (4), and the upper side of the frame (1) is fixedly connected to a power transmission box (5). The power transmission box (5) drives the internal structure of the four turntable sorting modules (3). A movable wheel module (6) is installed on the lower side of the frame (1), characterized in that: The frame (1) is equipped with four soil covering mechanisms. The peanut seeds sown by the four feeding pipes (4) can be covered with soil through the four soil covering mechanisms. The four soil covering mechanisms have the same connection structure and are arranged on the left and right. The soil covering mechanism includes a fixed block (7), a limiting chute (8), a lifting rod (9), a limiting slider (10), a stop block (11), a connecting rod (12), a fixed column (13), a rotating shaft (14), a flange (15), a soil-filling disc (16), a fixing frame (17), and a scraper (18). An adjustment mechanism is provided on the frame (1), through which the height of the four soil covering mechanisms can be adjusted; The adjustment mechanism includes a transmission block (19), a transmission groove (20), four rotating shafts (21), four threaded rods (22), four worm gears (23), a motor assembly (24), and a worm (25).

2. The secondary soil-applying disc device for a peanut planter according to claim 1, characterized in that: The fixing block (7) is installed on the lower side of the frame (1), the upper side of the fixing block (7) extends into the interior of the frame (1), the upper side of the fixing block (7) extends out of the frame (1), and the fixing block (7) is fixedly connected to the frame (1). The limiting slide (8) is opened inside the fixed block (7). The limiting slide (8) is a rectangular groove. The lifting rod (9) is slidably connected inside the limiting slide (8). The lower end of the lifting rod (9) extends out of the fixing block (7), and the limiting slider (10) is fixedly sleeved on the outer surface of the lifting rod (9).

3. The secondary soil-applying disc device for a peanut planter according to claim 2, characterized in that: The limiting slider (10) is slidably connected inside the limiting groove (8). The limiting slider (10) is a rectangular block structure, and the stop block (11) is fixedly connected to the lower end of the lifting rod (9). The stop block (11) is located on the lower side of the fixed block (7), the connecting rod (12) is fixedly connected to the lower side of the stop block (11), and the fixed column (13) is fixedly connected to the lower end of the connecting rod (12); The fixed column (13) is rotatably connected to a rotating shaft (14), and the right end of the rotating shaft (14) extends out of the fixed column (13). The flange (15) is fixedly connected to the right end of the rotating shaft (14), and the upper disc (16) is installed on the right side of the flange (15).

4. The secondary soil-applying disc device for a peanut planter according to claim 3, characterized in that: The upper soil disc (16) and the flange (15) are fixedly connected by bolts. The fixing frame (17) is sleeved on the outer surface of the connecting rod (12). The fixing frame (17) and the connecting rod (12) are fixedly connected by bolts. The fixing frame (17) has an L-shaped structure. The right side of the fixing frame (17) extends to the right side of the upper soil disc (16), and the scraper (18) is installed on the front side of the fixing frame (17). The scraper (18) and the fixing frame (17) are fixedly connected by bolts. The scraper (18) is located on the right side of the upper soil disc (16) and is in contact with the right side of the upper soil disc (16).

5. The secondary soil-applying disc device for a peanut planter according to claim 1, characterized in that: The transmission block (19) is fixedly connected to the upper side of the frame (1), the transmission groove (20) is opened inside the transmission block (19), and the four rotating shafts (21) are rotatably connected to the top wall of the transmission groove (20). The lower ends of the four rotating shafts (21) extend into the interior of the four limiting grooves (8), and the four threaded rods (22) are fixedly connected to the lower ends of the four rotating shafts (21).

6. The secondary soil-applying disc device for a peanut planter according to claim 5, characterized in that: The lower ends of the four threaded rods (22) are respectively threaded into the interior of the four lifting rods (9), and the four worm gears (23) are respectively fixedly sleeved on the outer surface of the four rotating shafts (21); All four worm gears (23) are located inside the transmission groove (20), and the motor assembly (24) is fixedly connected to the left side of the transmission block (19).

7. The secondary soil-applying disc device for a peanut planter according to claim 6, characterized in that: The output end of the motor assembly (24) is fixedly connected to a drive shaft, and the right end of the drive shaft extends rotatably into the interior of the drive groove (20). The worm (25) is fixedly connected to the right end of the transmission shaft. The right end of the worm (25) is rotatably connected to the right wall of the transmission groove (20). The worm (25) is meshed with four worm wheels (23).

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