Mechanical flexible shaft transmission mouth fertilizer applying structure of seeding machine
By adopting a mechanical flexible shaft transmission structure in the seeder, the problems of inflexible transmission and limited space are solved, achieving low cost, strong applicability, and high stability in sowing and fertilization, thus meeting the high-efficiency sowing needs of modern agriculture.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO SANSHAN ELECTROMECHANICAL TECH DEV
- Filing Date
- 2025-05-28
- Publication Date
- 2026-05-12
AI Technical Summary
Existing chain-driven or gear-driven fertilizer application structures suffer from problems such as inflexible transmission, limited installation space, and high maintenance costs, failing to meet the high-efficiency sowing and fertilization needs of modern agriculture.
The system adopts a mechanical flexible shaft transmission structure, which includes a fertilizer applicator, a fertilizer box, a fixed frame, a reversing drive, and a mechanical flexible shaft. The connection is achieved through a support base and a locking pin that locks the mechanical flexible shaft. The transmission shaft drives the fertilizer applicator to work, which simplifies the electrical control equipment and reduces the use of sprockets and chains.
It reduces costs, improves applicability and stability, saves space, makes the seeder structure more compact, and improves the quality and efficiency of fertilization operations.
Smart Images

Figure CN224218882U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of seeder technology, specifically to a mechanical flexible shaft transmission fertilizer application structure for a seeder. Background Technology
[0002] With the development of large-scale and modern agriculture, traditional fertilization methods are inefficient and cannot meet the needs of large-scale sowing and fertilization. People expect seeders to be able to complete sowing and fertilization simultaneously, while improving operational speed and quality. Precision agriculture emphasizes on-demand fertilization, improving fertilizer utilization, and reducing waste and pollution. Chain-driven or gear-driven fertilizer applicator structures suffer from problems such as inflexible transmission, limited installation space, and high maintenance costs. Utility Model Content
[0003] The purpose of this utility model is to provide a mechanical flexible shaft transmission fertilizer application structure for a seeder, so as to solve the problems of inflexible transmission, limited installation space, and high maintenance costs of existing chain transmission or gear transmission fertilizer application structures.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a mechanical flexible shaft transmission fertilizer application structure for a seeder, comprising a fertilizer applicator and a fertilizer applicator box, wherein the fertilizer applicator is fixed below the fertilizer applicator box, and further comprising a fixed frame, a reversing transmission device, and a mechanical flexible shaft, wherein the fixed frame is fixedly connected to the lower part of the fertilizer applicator box, the fertilizer applicator is fixedly connected to the lower part of the fixed frame, and a reversing transmission device is connected to each end of the mechanical flexible shaft; one of the reversing transmission devices is fixedly connected to the lower part of the fixed frame and connected to the fertilizer applicator via a transmission shaft, and the other reversing transmission device is connected to the seeder.
[0005] Preferably, the reversing drive includes a support base and a bearing. The support base is provided with a locking pin for locking the mechanical flexible shaft. The end of the mechanical flexible shaft is inserted into the support base and locked by the locking pin. The support base has a connecting hole.
[0006] Preferably, the fixing frame has a fertilizer discharge box connecting part, the fertilizer discharge box connecting part has a flat plate and an ear plate connected to the flat plate. The flat plate has a fertilizer discharge box connecting hole, and the ear plate has a reversing drive connecting hole. A connecting hole on the support seat of the reversing drive is connected to the reversing drive connecting hole on the ear plate of the fertilizer discharge box connecting part by bolts.
[0007] Preferably, the fertilizer applicator is provided with an adjustment plate for connecting and fixing the frame, and the adjustment plate has a connection hole.
[0008] Preferably, the bottom of the fertilizer discharge box is provided with a connection hole, and the connection hole at the bottom of the fertilizer discharge box is connected to the connection hole on the adjustment plate and the connection hole of the fertilizer discharge box by bolts.
[0009] Preferably, the fixing frame also has a ramp portion that extends and connects to the fertilizer box connection portion and a seeder connection portion that extends and connects to the ramp portion.
[0010] Preferably, the bottom of the fertilizer discharger is connected to a fertilizer discharge pipe.
[0011] Preferably, the two ends of the drive shaft each have threaded holes.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. Reduced costs: Compared to fertilization methods that use motor-driven systems with electronic control systems, flexible shaft drive fertilization structures do not require complex electronic control equipment, resulting in lower costs; compared to chain drives, flexible shaft drives reduce the use of components such as sprockets and chains, further reducing costs.
[0014] 2. Improved applicability: The flexible shaft can be flexibly arranged according to the structure and operational needs of the seeder, adapting to different models and structures of seeders, without being subject to strict space limitations, thus increasing the applicability of the fertilizer applicator;
[0015] 3. Enhanced stability: The flexible shaft drive avoids problems such as chain loosening and tooth skipping that may occur with chain drives, and also reduces potential electrical faults in motor drives, making fertilizer application operations more stable and reliable, and improving the working quality and efficiency of fertilizer application in seeders;
[0016] 4. Space saving: Unlike chain drives, flexible shaft drives do not require a large space to arrange sprockets and chains, which can effectively save internal space in the seeder, making the seeder structure more compact and easier to install and use. Attached Figure Description
[0017] Figure 1 This is a three-dimensional structural diagram of the mechanical flexible shaft transmission fertilizer application point of the seeder of this utility model.
[0018] Figure 2 This is a three-dimensional structural diagram of the reversing transmission device of this utility model;
[0019] Figure 3 This is a schematic diagram of the end structure of the mechanical flexible shaft of this utility model;
[0020] Figure 4 This is a schematic diagram of the installation of the reversing drive, fertilizer dispenser, and fixing frame of this utility model;
[0021] Figure 5 This is a partial structural diagram of the fixing frame of this utility model;
[0022] Figure 6 This is a partial schematic diagram of the adjusting plate of the fertilizer applicator of this utility model;
[0023] Figure 7 This is a schematic diagram of the end structure of the transmission shaft of this utility model.
[0024] In the diagram: 1. Fertilizer discharger; 2. Fertilizer discharge box; 3. Fixing frame; 4. Reversing transmission device; 5. Mechanical flexible shaft; 6. Transmission shaft; 11. Adjusting plate; 12. Fertilizer discharger connection hole; 13. Fertilizer discharge pipe; 14. Fixing plate; 31. Flat plate; 32. Ear plate; 33. Fertilizer discharge box connection hole; 34. Reversing transmission device connection hole; 41. Support seat; 42. Bearing; 43. Locking pin; 44. Connection hole; 51. Threaded section; 52. Groove; 61. Threaded hole; 62. Washer. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0026] Example
[0027] Please see Figures 1 to 7 A mechanical flexible shaft drive fertilizer application structure for a seeder includes a fertilizer dispenser 1 and a fertilizer dispenser box 2. The fertilizer dispenser 1 is fixed below the fertilizer dispenser box 2. The structure also includes a fixed frame 3, a reversing drive 4, and a mechanical flexible shaft 5. The fixed frame 3 is fixedly connected to the bottom of the fertilizer dispenser box 2, and the fertilizer dispenser 1 is fixedly connected to the bottom of the fixed frame 3. A reversing drive 4 is connected to each end of the mechanical flexible shaft 5. One reversing drive 4 is fixedly connected to the bottom of the fixed frame 3 and connected to the fertilizer dispenser 1 through a drive shaft 6. The other reversing drive 4 is connected to the seeder.
[0028] In a preferred embodiment of this invention, the reversing drive 4 includes a support base 41 and a bearing 42. The support base 42 is an integral structure and has a locking pin 43 for locking the mechanical flexible shaft 5. A connecting hole 44 is also provided on the support base 42. The end of the mechanical flexible shaft 5 is a rigid structure and is inserted into the support base 42 and locked by the locking pin 43. Specifically, the end of the mechanical flexible shaft 5 is as follows... Figure 3 As shown, the bearing has a threaded section 51 and a groove 52. The threaded section 51 is inserted into the support seat 41 and screwed tightly with the internal thread of the support seat 41. The support seat 42 has a pin hole for inserting a locking pin 43. The locking pin 43 is inserted into the pin hole. The position of the pin hole allows the pin to be inserted into the groove 52, thereby further locking the end of the mechanical flexible shaft 5. In this embodiment, the bearing 42 has a hexagonal hole for inserting the drive shaft 6. In this embodiment, the drive shaft 6 is a hexagonal shaft. Of course, the hole shape of the bearing 42 is not limited to a hexagonal hole; it can also be a square hole, a triangular hole, etc.
[0029] In a preferred embodiment of this invention, the fixing frame 3 has a fertilizer discharge box connecting part, which has a flat plate 31 and an ear plate 32 connected to the flat plate 31. The flat plate 31 has a fertilizer discharge box connecting hole 33, and the ear plate 32 has a reversing drive connecting hole 34. The connecting hole 44 on the support seat 41 of a reversing drive 4 is connected to the reversing drive connecting hole 34 on the ear plate 32 of the fertilizer discharge box connecting part by bolts, thereby realizing the connection and fixation of the reversing drive 4 to the fixing frame 3.
[0030] In a preferred embodiment of this invention, the fertilizer applicator 1 is provided with an adjusting plate 11 for connecting to the fixing frame 3, and the adjusting plate 11 has a fertilizer applicator connection hole 12. The fertilizer box 2 has a fixing frame connection hole at its bottom. The fixing frame connection hole 21 at the bottom of the fertilizer box 2 is connected to the fertilizer applicator connection hole 12 on the adjusting plate 11 and the fertilizer box connection hole 33 on the fixing frame 3 by bolts, thereby realizing the installation and fixation of the fertilizer box 2 to the fixing frame 3 and the fertilizer applicator 1. The fixing frame 3 also has a slope portion that extends and connects to the fertilizer box connection portion and a seeder connection portion that extends and connects to the slope portion. The fixing frame 3 is installed and fixed on the seeder through the seeder connection portion.
[0031] In this embodiment, the fertilizer applicator 1 is connected to the bottom of the fertilizer applicator pipe 13, and a fixing plate 14 is connected to the fertilizer applicator pipe 13. The fixing plate 14 is used to connect and fix the fertilizer applicator pipe 13 to the seeder.
[0032] As a preferred embodiment of this invention, the two ends of the drive shaft 6 are respectively provided with threaded holes 61, as shown in the figure. The drive shaft passes through the reversing drive 4 and the fertilizer discharger 1. The two ends are respectively provided with shims 62. The shims 62 have holes in the middle. The bolts pass through the shims 62 and are inserted into the threaded holes 61 for fastening.
[0033] Working principle: When the seeder is working, the hexagonal hole of the bearing 42 of the reversing transmission 4 receives the power from the seeder and transmits it to the hexagonal hole of another reversing transmission 4 via the mechanical flexible shaft 5. The hexagonal hole drives the transmission shaft 6 to rotate, which in turn drives the internal structure of the fertilizer discharger 1 to rotate, discharging the fertilizer from the fertilizer discharge box 2 to the fertilizer discharge pipe 13.
[0034] 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 mechanical flexible shaft transmission fertilizer application structure for a seeder, comprising a fertilizer applicator and a fertilizer applicator box, wherein the fertilizer applicator is fixed below the fertilizer applicator box, characterized in that: It also includes a fixed frame, a reversing drive, and a mechanical flexible shaft. The fixed frame is fixedly connected to the bottom of the fertilizer discharge box, the fertilizer discharge device is fixedly connected to the bottom of the fixed frame, and a reversing drive is connected to each end of the mechanical flexible shaft. One of the reversing drives is fixedly connected to the bottom of the fixed frame and connected to the fertilizer discharge device through a drive shaft, and the other reversing drive is connected to the seeder.
2. The seeder mechanical flexible shaft transmission fertilizer application structure according to claim 1, characterized in that: The reversing transmission includes a support base and a bearing. The support base is provided with a locking pin for locking the mechanical flexible shaft. The end of the mechanical flexible shaft is inserted into the support base and locked by the locking pin. The support base has a connecting hole.
3. The seeder mechanical flexible shaft transmission fertilizer application structure according to claim 2, characterized in that: The fixing frame has a fertilizer discharge box connecting part, the fertilizer discharge box connecting part has a flat plate and an ear plate connected to the flat plate. The flat plate has a fertilizer discharge box connecting hole, and the ear plate has a reversing drive connecting hole. The connecting hole on the support seat of the reversing drive is connected to the reversing drive connecting hole on the ear plate of the fertilizer discharge box connecting part by bolts.
4. The seeder mechanical flexible shaft transmission fertilizer application structure according to claim 3, characterized in that: The fertilizer applicator is equipped with an adjustment plate for connecting and fixing the frame, and the adjustment plate has connection holes.
5. The seeder mechanical flexible shaft transmission fertilizer application structure according to claim 4, characterized in that: The bottom of the fertilizer discharge box is provided with a connection hole, and the connection hole at the bottom of the fertilizer discharge box is connected to the connection hole on the adjustment plate and the connection hole of the fertilizer discharge box by bolts.
6. The seeder mechanical flexible shaft transmission fertilizer application structure according to claim 3, characterized in that: The fixing frame also has a ramp that extends from the fertilizer box connection part and a seeder connection part that extends from the ramp part.
7. The seeder mechanical flexible shaft transmission fertilizer application structure according to claim 1, characterized in that: The fertilizer discharge device is connected to a fertilizer discharge pipe at its bottom.
8. The seeder mechanical flexible shaft transmission fertilizer application structure according to claim 1, characterized in that: The drive shaft has threaded holes at both ends.