Gear box of seeder
By simplifying the drive components of the seeder through a modular toothed box structure, the problems of low assembly efficiency and high cost caused by the complex structure in the existing technology are solved, and efficient power transmission and uniform fertilization are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 东莞伟嘉塑胶电子制品有限公司
- Filing Date
- 2025-05-21
- Publication Date
- 2026-05-01
AI Technical Summary
The existing seeder's drive unit is installed inside the housing, resulting in a complex structure, affecting assembly efficiency and increasing production costs.
The device adopts a modular gearbox structure, including a base plate and a cover plate, and contains a speed-changing gear, a primary gear and an output gear. The motor drives the output gear and connects to the fertilizer application mechanism through a key hole, forming a simplified drive component module, which is installed inside the seeder housing.
It improves the assembly efficiency of the seeder, reduces production costs, and enhances the stability of power transmission and the uniformity of fertilization by simplifying the structure.
Smart Images

Figure CN224178663U_ABST
Abstract
Description
A tooth box for a seeder Technical Field
[0001] This utility model belongs to the field of seeder technology, and specifically relates to a seeder tooth box. Background Technology
[0002] A seeder is a planting machine that sows crops or seeds. Seeders are characterized by uniform sowing, consistent depth, stable row spacing, good soil covering, seed saving, and high work efficiency, making them more efficient than manual sowing. During sowing, fertilization is required simultaneously. Therefore, an additional drive device is needed inside the seeder to operate its internal components, driving the mixing and dispersing mechanisms of the fertilization system. The dispersing mechanism disperses the fertilizer, ensuring even application.
[0003] The drive unit inside most existing seeders is directly installed inside the seeder housing. The drive unit consists of a motor and multiple gears, which makes the internal structure of the seeder housing complex. Multiple parts need to be installed during seeder assembly, which affects the assembly efficiency and increases production costs. Summary of the Invention
[0004] The purpose of this invention is to provide a tooth box for a seeder to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: a seeder housing, comprising a base plate, a cover plate fixedly covered on the base plate, a motor base provided on the cover plate, a motor fixedly mounted on the motor base, a speed-changing gear, a primary gear and an output gear movably mounted on the base plate, the speed-changing gear meshing with the output gear through the primary gear, the motor driving the output gear, the primary gear having a shaft and a keying hole.
[0006] Preferably, the output gear has an output flat shaft, and the keying hole is a hexagonal hole.
[0007] Preferably, the cover plate is fixedly mounted with a protective shell, and the motor is located inside the protective shell.
[0008] Preferably, the substrate is provided with a battery compartment.
[0009] Preferably, a sealing strip is fixedly installed around the periphery of the battery box, and a battery cover is fixedly closed on the battery box, with the battery cover sealingly abutting against the sealing strip.
[0010] Compared with the prior art, the beneficial effects of this utility model are:
[0011] The base plate of this invention is movably mounted with a speed-changing gear, a primary gear, and an output gear. The base plate is fixedly closed with a cover plate, protecting the speed-changing gear, primary gear, and output gear. A motor mount is provided on the cover plate, and a motor is fixedly mounted on the motor mount. The speed-changing gear is meshed with the output gear through the primary gear. The motor drives the output gear. The primary gear has a shaft with a keying hole. Both the output gear and the primary gear are used to output power outward. The output gear drives the dispersing mechanism of the fertilizer applicator. The keying hole of the primary gear is connected to the stirring mechanism of the fertilizer applicator, driving the stirring mechanism to operate. This invention, through the cooperation of the base plate and the cover plate, assembles the drive components into a modular gearbox structure. During the assembly of the seeder, the gearbox structure is installed inside the seeder housing, and the output flat shaft is connected to the fertilizer applicator, quickly completing the assembly operation of the seeder, improving the assembly efficiency of the seeder, and reducing production costs. Attached Figure Description
[0012] Figure 1 is a structural view of the present invention from the first perspective.
[0013] Figure 2 is a second perspective structural view of this utility model.
[0014] Figure 3 is an exploded structural view of the present invention from the first perspective.
[0015] Figure 4 is an exploded structural view of the present invention from a second perspective.
[0016] Figure 5 is a structural view of the gear set of this utility model.
[0017] The diagram shows: 1. Base plate; 2. Cover plate; 3. Motor mount; 4. Motor; 5. Gear; 6. Primary gear; 7. Output gear; 8. Shaft; 9. Keying hole; 10. Output flat shaft; 11. Protective shell; 12. Battery box; 13. Sealing strip; 14. Battery cover. Detailed Implementation
[0018] 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.
[0019] Example 1:
[0020] As shown in Figures 1-5, the seeder housing provided by this utility model includes a base plate 1, on which a cover plate 2 is fixedly fitted. The cover plate 2 has a motor mount 3, on which a motor 4 is fixedly mounted. A speed-changing gear 5, a primary gear 6, and an output gear 7 are movably mounted on the base plate 1. The speed-changing gear 5 is meshed with the output gear 7 through the primary gear 6. The motor 4 drives the output gear 7. The primary gear 6 has a shaft 8 with a keying hole 9. The output gear 7 has an output flat shaft 10, and the keying hole 9 is a hexagonal hole. A protective shell 11 is fixedly mounted on the cover plate 2, and the motor 4 is located inside the protective shell 11. A battery box 12 is provided on the base plate 1. A sealing strip 13 is fixedly installed around the periphery of the battery box 12, and a battery cover 14 is fixedly fitted onto the battery box 12, sealingly abutting against the sealing strip 13.
[0021] Through the above technical solution, the base plate 1 of this utility model is movably mounted with a speed-changing gear 5, a primary gear 6, and an output gear 7. The base plate 1 is closed and fixed with the cover plate 2, protecting the speed-changing gear 5, the primary gear 6, and the output gear 7. A motor base 3 is provided on the cover plate 2, and a motor 4 is fixedly installed on the motor base 3. The speed-changing gear 5 is meshed with the output gear 7 through the primary gear 6. The motor 4 drives the output gear 7. The primary gear 6 is provided with a shaft 8, and the shaft 8 is provided with a keying hole 9. Both the output gear 7 and the primary gear 6 are used to output power outward. The output gear 7 drives the dispersing mechanism of the fertilizer application mechanism. The keying hole 9 of the primary gear 6 is connected to the stirring mechanism of the fertilizer application mechanism, driving the stirring mechanism to run. This utility model, through the cooperation of the base plate 1 and the cover plate 2, forms a modular toothed box structure for the drive components. During the assembly of the seeder, the toothed box structure is installed inside the seeder housing, and the output flat shaft 10 is connected to the fertilizer application mechanism, quickly completing the assembly operation of the seeder, improving the assembly efficiency of the seeder, and reducing production costs.
[0022] Example 2:
[0023] As shown in Figures 1-5, the base plate 1 of this invention serves as the bottom support structure of the tooth box. The cover plate 2 is fixedly fitted to the base plate 1, forming a closed tooth box space. A motor base 3 is provided on the cover plate 2, and a motor 4 is fixedly mounted on the motor base 3. A speed-changing gear 5, a primary gear 6, and an output gear 7 are movably mounted on the base plate 1. The speed-changing gear 5 adopts a double-layer structure, including a large gear and a small gear. This structure allows for speed changes during transmission. The primary gear 6 and the output gear 7 are both single-layer structures. A small gear is mounted on the shaft of the motor 4, and this small gear meshes with the speed-changing gear 5. The speed-changing gear 5 is connected to the output gear 7 through the primary gear 6, forming a complete gear transmission system. The motor 4 drives the output gear 7 through this gear system, realizing power transmission and speed adjustment. A shaft 8 is provided on the primary gear 6, and a key hole 9 is provided on the shaft 8. This structural design allows the tooth box to be effectively connected with other components of the seeder, such as the fertilizer application mechanism. During operation, after the motor 4 starts, the power is transmitted sequentially through the transmission gear 5 and the primary gear 6 to the output gear 7. The double-layer structure of the transmission gear 5 allows for adjustment of the output speed as needed, while the shaft 8 and keyway hole 9 of the primary gear 6 provide an interface for connecting other mechanisms. This modular gearbox design simplifies the overall structure of the seeder, facilitates assembly and maintenance, and also improves the seeder's working efficiency and flexibility. As the core component of the seeder, the optimization of its structure directly affects the overall performance of the seeder. This gearbox structure, through the rational layout of various components, ensures the high efficiency and stability of power transmission, providing a reliable guarantee for the normal operation of the seeder. This utility model uses the base plate 1 and the cover plate 2 to form a modular gearbox structure for the drive components. During seeder assembly, the gearbox structure is installed inside the seeder's housing, and the output flat shaft 10 is connected to the fertilizer application mechanism, quickly completing the seeder assembly operation, improving the seeder assembly efficiency, and reducing production costs.
[0024] Example 3:
[0025] As shown in Figures 1-5, the output gear 7 of this invention is equipped with an output flat shaft 10, which is designed to connect with the dispersing mechanism of the fertilizer applicator. The flat shaft structure increases the stability of the connection and the transmission efficiency. Meanwhile, the keying hole 9 on the shaft 8 of the first-stage gear 6 adopts a hexagonal design, which facilitates connection with the mixing mechanism of the fertilizer applicator. The hexagonal keying hole 9 provides a better bonding connection. In practical applications, the flat shaft of the output gear 7 can be directly inserted into the corresponding slot of the dispersing device of the fertilizer applicator, ensuring a stable connection and efficient transmission between the two. The hexagonal keying hole 9 on the shaft 8 of the first-stage gear 6 can perfectly match the corresponding hexagonal shaft of the mixing device of the fertilizer applicator, achieving precise power transmission. This design allows the gearbox to simultaneously drive two different fertilizer applicators—the mixing and dispersing mechanisms—greatly improving the uniformity and efficiency of fertilization. During sowing, the mixing mechanism continuously agitates the fertilizer to prevent clumping, while the dispersing mechanism fully disperses the fertilizer, ensuring that each seed receives a uniform nutrient supply. This dual function greatly improves the sowing quality.
[0026] Example 4:
[0027] As shown in Figures 1-5, a protective shell 11 is fixedly installed on the cover plate 2 of this utility model, and the motor 4 is located inside the protective shell 11. This design provides an additional protective layer for the motor 4. The presence of the protective shell 11 firstly enhances the physical protection of the motor 4. The protective shell 11 prevents external environmental factors such as dust and moisture from affecting the motor 4. Agricultural environments are often harsh, with a large amount of dust and moisture; the installation of the protective shell 11 greatly extends the service life of the motor 4. In addition, the protective shell 11 also has a sound insulation function, which can reduce the noise generated by the motor 4 during operation and improve the operating environment.
[0028] Example 5:
[0029] As shown in Figures 1-5, a battery box 12 is provided on the substrate 1 of this utility model for installing and fixing batteries. The battery box 12 is located on one side of the substrate 1 and is a rectangular groove with a depth suitable for accommodating standard-sized batteries. The inner wall of the battery box 12 is smooth and flat to ensure that the batteries are installed securely. The bottom of the battery box 12 is provided with metal contacts that connect to the positive and negative terminals of the battery. The contacts are connected to the circuit board inside the gearbox via wires to provide power to the motor 4. A snap-fit structure is provided at the opening at the top of the battery box 12 to fix the battery cover 14. A waterproof groove is provided around the battery box 12 to enhance the sealing performance.
[0030] Example 6:
[0031] As shown in Figures 1-5, a sealing strip 13 is fixedly installed around the periphery of the battery box 12 of this invention. A battery cover 14 is fixedly fitted onto the battery box 12, and the battery cover 14 and the sealing strip 13 form a sealed contact, creating a complete sealing system. The sealing strip 13 is made of oil-resistant and wear-resistant rubber material, possessing good elasticity and sealing performance. The sealing strip 13 is fixed in the grooves around the periphery of the battery box 12 by adhesive bonding or embedding, ensuring a secure installation. The edge of the battery cover 14 has a raised structure that mates with the sealing strip 13, allowing it to fit tightly against the sealing strip 13 when pressed. The battery cover 14 is fixedly connected to the battery box 12 by screws or clips, ensuring sealing pressure.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0033] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.
Claims
1. A seed box of a seeder comprising a base plate to which a cover plate is fixedly attached, characterized in that, The cover plate is provided with a motor base, on which a motor is fixedly mounted. The base plate is movably mounted with a speed-changing gear, a primary gear, and an output gear. The speed-changing gear is meshed with the output gear through the primary gear. The motor drives the output gear. The primary gear is provided with a shaft, and the shaft is provided with a keyway hole.
2. The tooth box of a seeder according to claim 1, characterized in that, The output gear is provided with an output flat shaft, and the keying hole is a hexagonal hole.
3. A seed box for a planter as claimed in claim 1, wherein, The cover plate is fixedly fitted with a protective shell, and the motor is located inside the protective shell.
4. A seed meter housing according to claim 1 wherein, The substrate is equipped with a battery compartment.
5. A seed meter housing according to claim 4, wherein, A sealing strip is fixedly installed around the periphery of the battery box, and a battery cover is fixedly closed on the battery box, with the battery cover sealing against the sealing strip.