A peanut planter

By designing a hopper and transmission unit with elastic support in the peanut planter, the problem of low seed conveying efficiency caused by the complex structure of the hopper was solved, achieving seed mobility and efficient sowing.

CN224402139UActive Publication Date: 2026-06-26JILIN AGRICULTURAL UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JILIN AGRICULTURAL UNIV
Filing Date
2025-09-28
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing peanut planters have large hoppers and complex mixing mechanisms, making it difficult to efficiently deliver peanut seeds into the planting section.

Method used

Design a peanut planter that includes a frame, a hopper, a seeding section, and a transmission section. The hopper, through its elastic support and pressure plate structure, combined with the linkage transmission wheel and shaft of the transmission section, achieves the fluidity and efficient transport of peanut seeds.

Benefits of technology

It improves the fluidity and transport efficiency of peanut seeds, reduces seed splashing, adapts to different planting specifications, and achieves efficient sowing.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a peanut seeding machine, wherein a hopper is elastically supported on a frame and has an active stroke of 0.3-1.0 cm, a pressing plate is movably arranged in the hopper in the height direction; a plurality of fixing frames are arranged at the front and rear ends of the frame and are spaced apart along the width direction of the frame, a receiving box is connected and communicated to a discharging cavity and is internally provided with a columnar working cavity, a free end of the receiving box is connected with a flexible pipe, an upper end of a seeding pipe is connected to the flexible pipe and a lower end of the seeding pipe extends to a soil turning plate; the peanut seeding machine is suitable for different planting specifications, the fixed positions of the fixing frames on the frame are adjusted, and thus the peanut seeding machine is adapted; the peanut seeds in the hopper are pressed by the pressing plate, and the splashing of the peanut seeds is reduced; the hopper is elastically supported on the frame, so that the vibration of the hopper is stored or even superimposed by the elastic member during the advancing of the peanut seeding machine, the peanut seeds in the hopper can be in an optimal flow state, and the peanut seeds can enter the receiving box more efficiently.
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Description

Technical Field

[0001] This utility model relates to the field of seeder structure, and in particular to a peanut seeder. Background Technology

[0002] A peanut planter is an agricultural machine specifically designed for peanut cultivation. It primarily performs a series of operations including ditching, sowing, and covering with soil, ensuring efficient and precise peanut planting. By using a peanut planter, farmers can significantly improve planting efficiency and drastically reduce the intensity of manual labor, thus alleviating their workload. Simultaneously, the machine ensures uniform sowing and consistent depth, guaranteeing that each peanut seed grows in the optimal environment, laying a solid foundation for a bountiful harvest.

[0003] Depending on their design and functions, peanut planters can be categorized into several types to meet the needs of agricultural production at different scales. Specifically, manual peanut planters are suitable for small-area planting, are easy to operate, and are suitable for family farms; semi-automatic peanut planters add some automation functions to the manual process, making them suitable for medium-sized agricultural production; while fully automatic peanut planters integrate advanced automation technology, enabling fully automated operation from ditching to covering, and are particularly suitable for large-scale, intensive agricultural production models.

[0004] During the forward movement of a peanut planter, peanut seeds are stored in a large hopper and enter the planting section through multiple outlets. Generally, a mixing mechanism is required to ensure efficient seed delivery. However, due to the large size of the hopper and the fact that only one or two peanuts are typically planted per hole, the complex structure of the mixing mechanism makes it difficult to efficiently deliver the seeds into the planting section. Utility Model Content

[0005] The main purpose of this utility model is to provide a peanut planter that solves the problem that while the mixing mechanism of the large hopper is complex, it is difficult to efficiently deliver peanut seeds into the planting section during the mixing process.

[0006] To achieve the above objectives, this utility model provides a peanut planter, comprising:

[0007] The frame has wheels at both ends of its width;

[0008] A support frame is attached to the front end of the frame;

[0009] The hopper is elastically supported on the frame and has a travel of 0.3 to 1.0 cm. The bottom of the hopper has two inverted triangular discharge chambers arranged parallel to each other in the width direction. The hopper has a pressure plate that is movable in the height direction.

[0010] Multiple seeding units include a fixed frame, a receiving box, a flexible guide tube, and a seeding tube. The fixed frames are respectively arranged at the front and rear ends of the machine frame and spaced apart along the width of the machine frame. The position of the fixed frame on the width of the machine frame is adjustable and the bottom end extends downward to a soil turning plate. The receiving box is connected to and leads to the feeding chamber and has a columnar working chamber inside. The free end of the receiving box is connected to the flexible guide tube. The upper end of the seeding tube is connected to the flexible guide tube and the lower end extends to the soil turning plate.

[0011] The transmission unit includes a support arm, a transmission wheel, and two rotating shafts. The support arm is connected to the frame. The transmission wheel is rotatably disposed at the bottom of the support arm. The two rotating shafts are respectively disposed through multiple material receiving boxes at the front and rear ends of the frame. The transmission wheel and the two rotating shafts are linked together. Rollers are fixedly disposed on the outer periphery of the rotating shafts corresponding to the working cavity. Multiple material picking grooves are spaced apart on the outer periphery of the rollers.

[0012] Furthermore, a baffle is rotatably provided on the fixed frame corresponding to the position of the soil-turning plate.

[0013] Furthermore, the hopper is provided with an elastic structure that presses down the pressure plate.

[0014] Furthermore, the pressure plate and the hopper form a guiding fit in the vertical direction.

[0015] Furthermore, the bottom of the pressure plate is provided with two protrusions, each with an inverted triangular cross-section, corresponding to the two feeding cavities.

[0016] Furthermore, the connection and linkage between the transmission wheel and the rotating shaft is a chain gear transmission.

[0017] Furthermore, a position scale is provided in the width direction of the frame corresponding to the position of the fixed frame.

[0018] Furthermore, the outer circumference of the transmission wheel is spaced with insert shafts arranged radially.

[0019] Furthermore, the frame is provided with rotating bearings at both ends of its width, and the wheels are mounted on the rotating bearings.

[0020] Furthermore, the receiving box is located at the bottom of the feeding chamber.

[0021] The peanut planter provided by this utility model allows for adjustment of the fixed position of the fixing frame on the machine frame according to the planting specifications, thereby achieving a suitable fit. Through the action of the pressure plate, the peanut seeds in the hopper are pressed down, reducing the splashing of peanut seeds. The hopper is elastically supported by the machine frame, so that during the forward movement of the peanut planter, the vibration of the hopper is preserved or even superimposed by the elastic element, so that the peanut seeds inside can be in a better flow state and enter the receiving box more efficiently. Attached Figure Description

[0022] Figure 1 This is a first-view schematic diagram of the peanut planter of the first embodiment of this utility model (with the feed hopper hidden);

[0023] Figure 2 yes Figure 1 Schematic diagram of part A in the diagram;

[0024] Figure 3 This is a second perspective schematic diagram of the peanut planter of the first embodiment of this utility model (with the feed hopper hidden).

[0025] Figure 4 This is a third-view schematic diagram of the peanut planter of the first embodiment of this utility model (with the feed hopper hidden).

[0026] Figure 5 This is a schematic diagram of the pressure plate in the peanut planter according to the first embodiment of this utility model;

[0027] Figure 6 This is a schematic diagram from the first perspective of the peanut planter of the first embodiment of this utility model;

[0028] Figure 7 This is a second perspective schematic diagram of the peanut planter of the first embodiment of this utility model. Detailed Implementation

[0029] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0030] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” “the,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, units, modules, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, units, modules, components, and / or groups thereof. It should be understood that when we say an element is “connected” or “coupled” to another element, it can be directly connected or coupled to the other element, or there may be intermediate elements. Furthermore, “connected” or “coupled” as used herein can include wireless connection or wireless coupling. The term “and / or” as used herein includes all or any units and all combinations of one or more associated listed items.

[0031] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein (including technical and scientific terms) have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the same meaning as in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless specifically defined as herein.

[0032] Reference Figures 1 to 7 In one embodiment of this utility model, a peanut planter includes:

[0033] The frame is 100, and wheels 110 are provided at both ends of its width;

[0034] The bracket 200 is connected to the front end of the frame 100;

[0035] The hopper 300 is elastically supported on the frame 100 and has a travel of 0.3 to 1.0 cm. The bottom of the hopper 300 has two inverted triangular discharge chambers 310 arranged parallel to each other in the width direction. The hopper 300 has a pressure plate 320 movably arranged in the height direction.

[0036] Multiple seeding units 400 include a fixing frame 410, a receiving box 420, a flexible guide tube 430, and a seeding tube 440. The fixing frames 410 are respectively arranged at the front and rear ends of the frame 100 and spaced apart along the width direction of the frame 100. The position of the fixing frame 410 on the width of the frame 100 is adjustable and the bottom end extends downward to a soil turning plate 450. The receiving box 420 is connected to and leads to the feeding chamber 310 and has a columnar working chamber 421 inside. The free end of the receiving box 420 is connected to the flexible guide tube 430. The upper end of the seeding tube 440 is connected to the flexible guide tube 430 and the lower end extends to the soil turning plate 450.

[0037] The transmission unit 500 includes a support arm 510, a transmission wheel 520, and two rotating shafts 530. The support arm 510 is connected to the frame 100. The transmission wheel 520 is rotatably disposed at the bottom of the support arm 510. The two rotating shafts 530 are respectively disposed through multiple material receiving boxes 420 at the front and rear ends of the frame 100. The transmission wheel 520 and the two rotating shafts 530 are linked together. Rollers 531 are fixedly disposed on the outer periphery of the rotating shafts 530 corresponding to the working cavity 421. Multiple material picking grooves are spaced apart on the outer periphery of the rollers 531.

[0038] In the prior art, during the forward movement of a peanut planter, peanut seeds are stored in a large hopper and enter the planting section through multiple outlets. Generally, a stirring mechanism is required to ensure that the peanut seeds can enter the planting section efficiently. However, due to the large size of the hopper and the fact that only one or two peanuts are usually planted per hole during the planting process, the complex structure of the stirring mechanism makes it difficult to efficiently deliver the peanut seeds into the planting section.

[0039] The peanut planter provided by this utility model has wheels 110 at both ends of the width of the frame 100. A trailer 200 is connected to the front end of the frame 100. External vehicles drag the frame 100 based on the trailer 200.

[0040] The hopper 300 is elastically supported on the frame 100 and has a travel of 0.2 to 2.0 cm. During the forward movement of the peanut planter, the vibration of the hopper 300 is preserved or even amplified by the elastic components, preventing it from being buffered and absorbed by the soil and wheels 110. The vibration of the hopper 300 ensures that the peanut seeds inside are in an optimal flow state. The hopper 300 is bolted to the frame 100, and multiple butterfly springs are installed between the hopper 300 and the frame 100 to achieve elastic support. Two inverted triangular discharge chambers 310 are arranged parallel to each other in the width direction at the bottom of the hopper 300, and a pressure plate 320 is movable in the height direction inside the hopper 300. The pressure plate 320 presses down the peanut seeds inside the hopper 300, reducing seed splashing.

[0041] Multiple sowing units 400 include a fixing frame 410, a receiving box 420, a flexible guide tube 430, and a sowing tube 440. The fixing frames 410 are respectively located at the front and rear ends of the frame 100 and spaced apart along the width of the frame 100. The position of the fixing frame 410 on the width of the frame 100 is adjustable, and its bottom end extends downward to a soil-turning plate 450. The soil-turning plate 450 forms an inclined angle, thereby completing the movement of the furrows. Adjusting the position of the fixing frame 410 allows for matching different planting specifications. The fixing frame 410 can be fixed to the frame 100 by clamping or bolting, etc. The receiving box 420 is connected to and leads to the feeding chamber 310 and has a columnar working chamber 421 inside. Peanut seeds in the hopper 300 enter the receiving box 420. The free end of the receiving box 420 is connected to the flexible guide tube 430. The upper end of the sowing tube 440 is connected to the flexible guide tube 430, and the lower end extends to the soil-turning plate 450. Because of the presence of the flexible guide tube 430, the receiving box 420 can still be connected to the seeding tube 440 after the fixing frame 410 has completed its position adjustment.

[0042] The transmission unit 500 includes a support arm 510, a drive wheel 520, and two rotating shafts 530. The drive wheel 520 is rotatably mounted at the bottom of the support arm 510. During the forward movement of the peanut planter, the drive wheel 520 rotates due to its interaction with the soil. The two rotating shafts 530 pass through multiple material receiving boxes 420 at the front and rear ends of the frame 100, respectively. The drive wheel 520 and the two rotating shafts 530 are linked, and the specific linkage method can be varied, such as gears or belts. The drive wheel 520 is linked to one of the rotating shafts 530 via a belt, thus mitigating the vibration of the hopper 300 to some extent. The two rotating shafts 530 are connected by gear, chain, or belt drives. Besides using belts to mitigate the vibration of the hopper 300, the vibration can also be addressed by adding a universal joint at the rotating shaft 530 or a circumferential elastic structure at the support arm 510. A roller 531 is fixedly installed on the outer periphery of the rotating shaft 530 corresponding to the working cavity 421, and multiple feeding slots are spaced apart on the outer periphery of the roller 531. By rotating the roller 531, the feeding slots sequentially collect peanut seeds.

[0043] During operation, the fixed position of the fixing frame 410 on the frame 100 is adjusted according to the planting specifications. After the peanut seeds are placed into the hopper 300, the pressure plate 320 is used to cover the upper surface of the peanut seeds. The peanut planter is dragged forward, and the transmission wheel 520 rotates due to its interaction with the soil. The two rotating shafts 530 rotate in conjunction with the transmission wheel 520. The hopper 300 is elastically supported by the frame 100. Therefore, during the forward movement of the peanut planter, the vibration of the hopper 300 is preserved or even amplified by the elastic element, allowing the peanut seeds inside to be in a better flow state and enter the receiving box 420 more efficiently.

[0044] In summary, the fixed position of the fixing frame 410 on the frame 100 is adjusted according to the planting specifications to achieve a suitable fit; the peanut seeds in the hopper 300 are pressed down by the pressure plate 320 to reduce the splashing of peanut seeds; the hopper 300 is elastically supported by the frame 100, so the vibration of the hopper 300 is preserved or even superimposed by the elastic element during the forward movement of the peanut planter, so that the peanut seeds inside can be in a better flow state and enter the receiving box 420 more efficiently.

[0045] Reference Figure 1 In one embodiment, a baffle 411 is rotatably provided on the fixing frame 410 corresponding to the position of the soil turning plate 450.

[0046] In this embodiment, the baffle 411 provides support while preventing the soil turning plate 450 from failing to provide suitable sowing space.

[0047] In one embodiment, the hopper 300 is provided with an elastic structure that presses down the pressure plate 320.

[0048] In this embodiment, the elastic structure allows the pressure plate 320 to continuously press down on the peanut seeds inside the hopper 300. Especially when the hopper 300 is vibrating vertically, the continuous downward pressure from the pressure plate 320 facilitates the entry of the peanut seeds into the receiving box 420.

[0049] In one embodiment, the pressure plate 320 and the hopper 300 form a guiding fit in the vertical direction.

[0050] In this embodiment, the pressure plate 320 and the hopper 300 are vertically guided, thereby reducing the possibility of the pressure plate 320 being misaligned. In a typical structure, the inner wall of the hopper 300 has multiple guide protrusions in the vertical direction, while the outer wall of the pressure plate 320 has multiple notches corresponding to the guide protrusions. Through the cooperation of the guide protrusions and notches, the vertical guiding cooperation between the pressure plate 320 and the hopper 300 is achieved.

[0051] Reference Figure 5 In one embodiment, the bottom of the pressure plate 320 is provided with two protrusions 321 with the same inverted triangular cross-section corresponding to the two feeding cavities 310.

[0052] In this embodiment, the shape below the pressure plate 320 is designed so that the entire pressure plate 320 can better compress the peanut seeds in the hopper 300, especially when there are not many peanut seeds left.

[0053] In one embodiment, the connection between the transmission wheel 520 and the rotating shaft 530 is a chain gear drive.

[0054] In this embodiment, the linkage between the transmission wheel 520 and the rotating shaft 530 is set as a chain tooth transmission, which has the advantages of high efficiency and stability.

[0055] In one embodiment, a position scale is provided on the frame 100 in the width direction corresponding to the position of the fixed frame 410.

[0056] In this embodiment, the position adjustment of the mounting bracket 410 is guided by a position scale on the frame 100. The position scale can be sprayed or etched onto the frame 100.

[0057] Reference Figure 1 In one embodiment, the outer periphery of the transmission wheel 520 is spaced by insert shafts 521 arranged radially.

[0058] In this embodiment, an insert shaft 521 is provided on the outer periphery of the transmission wheel 520, so that the transmission wheel 520 and the soil are more synchronized during the process of the peanut planter being dragged forward. This prevents the transmission wheel 520 from slipping and failing to properly drive the rotating shaft 530.

[0059] In one embodiment, the frame 100 is provided with rotating bearings at both ends of its width, and the wheels 110 are mounted on the rotating bearings.

[0060] In this embodiment, the wheels 110 are directly connected to the frame 100 via rotating bearings, without a suspension system, thus efficiently transmitting the vibration energy of the ground to the hopper 300. The peanut seeds within the hopper 300 can achieve a better flow state.

[0061] In one embodiment, the receiving box 420 is disposed at the bottom of the unloading chamber 310.

[0062] In this embodiment, the receiving box 420 is set at the bottom of the feeding chamber 310, so that the peanut seeds are discharged smoothly and thoroughly.

[0063] In summary, the peanut planter provided by this utility model allows for adjustment of the fixed position of the fixing frame 410 on the frame 100 according to the planting specifications, thereby achieving a suitable fit. The pressure plate 320 presses down the peanut seeds in the hopper 300, reducing seed splashing. The hopper 300 is elastically supported by the frame 100, so during the forward movement of the peanut planter, the vibration of the hopper 300 is preserved or even amplified by the elastic element, ensuring that the peanut seeds inside are in a better flow state and enter the receiving box 420 more efficiently.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A peanut planter, characterized in that, include: The frame (100) has wheels (110) at both ends of its width. A trailer (200) is connected to the front end of the frame (100); The hopper (300) is elastically supported on the frame (100) and has a travel of 0.3 to 1.0 cm. The bottom of the hopper (300) has two discharge chambers (310) with inverted triangular cross sections arranged parallel to each other in the width direction. The hopper (300) has a pressure plate (320) movable in the height direction. Multiple seeding units (400) include a fixed frame (410), a receiving box (420), a flexible guide tube (430), and a seeding tube (440). The multiple fixed frames (410) are respectively arranged at the front and rear ends of the frame (100) and spaced apart along the width direction of the frame (100). The fixed frame (410) is adjustable in position on the width of the frame (100) and has a soil turning plate (450) extending downward from its bottom end. The receiving box (420) is connected to and leads to the feeding chamber (310) and has a columnar working chamber (421) inside. The free end of the receiving box (420) is connected to the flexible guide tube (430). The upper end of the seeding tube (440) is connected to the flexible guide tube (430) and the lower end extends to the soil turning plate (450). The transmission unit (500) includes a support arm (510), a transmission wheel (520), and two rotating shafts (530). The support arm (510) is connected to the frame (100). The transmission wheel (520) is rotatably disposed at the bottom of the support arm (510). The two rotating shafts (530) are respectively disposed through multiple receiving boxes (420) at the front and rear ends of the frame (100). The transmission wheel (520) and the two rotating shafts (530) are linked together. Rollers (531) are fixedly disposed on the outer periphery of the rotating shafts (530) corresponding to the working cavity (421). Multiple material picking grooves are spaced apart on the outer periphery of the rollers (531).

2. The peanut planter according to claim 1, characterized in that, A baffle (411) is rotatably provided on the fixed frame (410) corresponding to the position of the soil turning plate (450).

3. The peanut planter according to claim 1, characterized in that, The hopper (300) is provided with an elastic structure that presses down the pressure plate (320).

4. The peanut planter according to claim 3, characterized in that, The pressure plate (320) and the hopper (300) form a guiding fit in the vertical direction.

5. The peanut planter according to claim 1, characterized in that, The bottom of the pressure plate (320) is provided with two protrusions (321) with the same inverted triangular cross-section, corresponding to the two feeding cavities (310).

6. The peanut planter according to any one of claims 1 to 5, characterized in that, The connection between the transmission wheel (520) and the rotating shaft (530) is a chain gear drive.

7. The peanut planter according to any one of claims 1 to 5, characterized in that, The frame (100) is provided with a position scale in the width direction corresponding to the position of the fixed frame (410).

8. The peanut planter according to any one of claims 1 to 5, characterized in that, The outer periphery of the transmission wheel (520) is spaced by insert shafts (521) arranged radially.

9. The peanut planter according to any one of claims 1 to 5, characterized in that, Rotary bearings are provided at both ends of the width of the frame (100), and the wheels (110) are mounted on the rotary bearings.

10. The peanut planter according to any one of claims 1 to 5, characterized in that, The receiving box (420) is located at the bottom of the unloading chamber (310).