Combined mechanism of no-tillage cutter and reclamation cutter
By introducing a combination design of slider, positioning pin, spring and locking block into the no-till seeder, the problems of inconvenient disassembly and assembly and depth adjustment of no-till blades and tillage blades in the existing technology are solved, and the effect of quick disassembly and assembly and flexible depth adjustment is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-26
- Publication Date
- 2026-04-07
AI Technical Summary
The existing no-till planter's combination mechanism of no-till blades and tillage blades is not convenient for quick disassembly and reassembly and for adjusting the depth.
The design employs a combination of slider, positioning pin, spring, and locking block, allowing for quick assembly and disassembly of the no-till blades by pulling the handle. The blade height can be adjusted by using bolts and guide plates to change the tillage depth.
It enables quick assembly and disassembly of no-till blades and flexible adjustment of tillage depth, improving operational efficiency and equipment maintenance convenience.
Smart Images

Figure CN224084075U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of agricultural machinery and equipment technology, specifically a combination mechanism of no-till blade and tillage blade. Background Technology
[0002] A no-till planter is a seeding implement that sows seeds directly on undisturbed land. Because the soil is hard and covered with stubble, straw, and weeds, no-till planters require strong capabilities to cut through the covering and break up the soil for furrowing. Otherwise, they are essentially the same as ordinary planters. Driven no-till blades have good cutting, stubble-breaking, and soil-loosening performance. They are driven by the tractor's power take-off shaft and are commonly used stubble-breaking components in no-till planters. As a protective tillage implement, no-till planters help prevent soil erosion, control dust storms, protect the environment, save energy, and save agricultural time.
[0003] Currently, the existing utility model, by adopting the above-mentioned technical solution, can achieve the following positive effects: Based on the principle of reducing human-induced damage to the soil system, this structure utilizes a combination of no-till blades and tillage blades. The no-till blades create planting furrows, enabling no-till sowing and drought resistance while conserving moisture. Simultaneously, the tillage blades penetrate the soil to break up stubble and kill weeds, further pulverizing straw, stubble, and weeds and burying them in the soil. Without damaging deep soil worm tunnels, reducing wind erosion, and improving soil fertility and drought resistance, it also implements straw return to the field, accelerating the decomposition of straw and stubble, and improving the economic benefits of farmland.
[0004] For example, the combination mechanism of no-till blades and tillage blades for no-till seeders disclosed in patent announcement number CN206728527U includes: a blade shaft, no-till blades, tillage blades, bolts, nuts, and a blade disc; the no-till blades and tillage blades are evenly and crosswise fixed to the blade disc with bolts and nuts to form a single blade assembly; and each blade assembly is fastened to the blade shaft in a spiral arrangement; the distance between the tangent of the tip of the no-till blade and the tangent of the tip of the tillage blade on the blade disc is 25±5mm. However, such a combination mechanism of no-till blades and tillage blades for no-till seeders is inconvenient for quick disassembly and assembly of the no-till blades without tools, and it is also inconvenient to adjust the depth of tillage.
[0005] As can be seen from the solutions disclosed in the existing patent documents, it is inconvenient to quickly assemble and disassemble the no-till blades without tools, and it is also inconvenient to adjust the depth of tillage. Therefore, it is necessary to improve the existing technology. Utility Model Content
[0006] The purpose of this utility model is to provide a combination mechanism of no-till blades and tillage blades to solve the problems of inconvenient tool-free quick assembly and disassembly of no-till blades and inconvenient adjustment of tillage depth.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a combination mechanism of a no-till blade and a tillage blade, comprising a drive shaft, a fixed sleeve welded to the outer side of the drive shaft, a no-till blade fitted onto the outer side of the fixed sleeve, an opening inside the no-till blade, a slot inside the no-till blade, a slider slidably fitted inside the fixed sleeve, a positioning pin welded to one side of the slider, a spring slidably fitted onto the outer side of the positioning pin, a shaft support slidably fitted to the end of the drive shaft, a guide plate welded to the upper end of the shaft support, a mounting hole inside the guide plate, a support sleeve fitted onto the outer side of the upper end of the guide plate, and a bolt threadedly connected to the inside of the support sleeve.
[0008] Preferably, the no-till blade has a positioning pin inside, one end of the positioning pin is fixedly welded to a locking block, one side of the locking block is fixedly welded to a handle, and the locking block is engaged inside the slot. By pulling the handle outward, the locking block, positioning pin and slider are moved outward, so that the locking block disengages from the no-till blade, making it easy to move upward and quickly remove for maintenance and replacement.
[0009] Preferably, one end of the spring is fixedly connected to the slider, and the other end of the spring is fixedly connected to the inside of the fixing sleeve. The spring is designed to push the slider, so that the positioning pin pulls the locking block to securely engage with the inside of the no-till blade, making it convenient and quick to fasten and install the no-till blade.
[0010] Preferably, the fixing sleeve has an internal sliding connection to a positioning pin, and the fixing sleeve also has an internal sliding connection to a spring. The combination design of the slider, positioning pin, spring, locking block and handle can eliminate the need for disassembly tools, making it convenient for operators to quickly disassemble and assemble the no-till blade.
[0011] Preferably, the end of the no-till blade is close to the drive shaft, and a positioning pin is sleeved inside the opening. By pulling the handle outward, the locking block moves outward, fixing the no-till blade sleeve and the outside of the positioning pin. Releasing the handle allows the locking block to securely engage and fix the no-till blade, facilitating quick and easy installation of the no-till blade.
[0012] Preferably, the interior of the mounting hole is connected by a threaded bolt, and a tillage blade is installed on the outside of the fixing sleeve. The guide plate is moved longitudinally by the longitudinal moving shaft support, which facilitates the adjustment of the height of the no-till blade and the tillage blade, so as to adjust the depth of tillage.
[0013] Preferably, the guide plate is internally connected by threaded bolts, and a baffle is fixedly welded to the upper end of the support sleeve. The guide plate and the support sleeve are connected by rotating and tightening the bolts, which facilitates the installation of the shaft support.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. This utility model uses an outward-pulling handle to move the locking block, positioning pin, and slider outward, causing the locking block to disengage from the no-till blade, facilitating quick removal for maintenance and replacement. The spring design pushes the slider, causing the positioning pin to pull the locking block to securely engage the no-till blade, facilitating quick and easy installation. The combination of the slider, positioning pin, spring, locking block, and handle eliminates the need for disassembly tools, allowing operators to quickly install and remove the no-till blade. By pulling the handle outward, the locking block moves outward, securing the no-till blade retainer and positioning pin to the outside. Releasing the handle allows the locking block to securely engage the no-till blade, facilitating quick and easy installation.
[0016] 2. This utility model uses a longitudinally moving shaft support to drive the guide plate to move longitudinally, which facilitates the adjustment of the height of the no-till blade and the tillage blade, so as to adjust the depth of tillage. The guide plate and the support sleeve are connected by rotating and tightening the bolt thread, which facilitates the installation of the shaft support. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0018] Figure 2 This is an enlarged perspective view of the no-till blade of this utility model;
[0019] Figure 3 This is a partial enlarged sectional view of the right side of the fixing sleeve of this utility model;
[0020] Figure 4 This is an enlarged perspective view of the guide plate of this utility model;
[0021] Figure 5 This is an enlarged perspective view of the bolt of this utility model.
[0022] In the diagram: 1 drive shaft, 11 fixed sleeve, 12 no-till blade, 13 opening, 14 slot, 15 slider, 16 positioning pin, 17 spring, 18 locking block, 19 handle, 110 tillage blade, 2 shaft support, 21 guide plate, 22 mounting hole, 23 support sleeve, 24 bolt, 25 baffle. Detailed Implementation
[0023] 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.
[0024] Please see Figure 1-5The diagram shows a combination mechanism of a no-till blade and a tillage blade, including a drive shaft 1. A fixing sleeve 11 is fixedly welded to the outside of the drive shaft 1. A no-till blade 12 is clamped to the outside of the fixing sleeve 11. An opening 13 is provided inside the no-till blade 12. A slot 14 is provided inside the no-till blade 12. A slider 15 is slidably sleeved inside the fixing sleeve 11. A positioning pin 16 is fixedly welded to one side of the slider 15. A spring 17 is slidably sleeved to the outside of the positioning pin 16. A shaft support 2 is slidably sleeved to the end of the drive shaft 1. A guide plate 21 is fixedly welded to the upper end of the shaft support 2. An installation hole 22 is provided inside the guide plate 21. A support sleeve 23 is sleeved to the outer side of the upper end of the guide plate 21. A bolt 24 is threadedly connected inside the support sleeve 23.
[0025] To facilitate the disassembly and assembly of the no-till blade 12, a positioning pin 16 is internally fitted into the blade 12. A locking block 18 is welded to one end of the positioning pin 16, and a handle 19 is welded to one side of the locking block 18. The locking block 18 is engaged internally in the slot 14. By pulling the handle 19 outwards, the locking block 18, positioning pin 16, and slider 15 move outwards, causing the locking block 18 to disengage from the no-till blade 12, facilitating quick removal for maintenance and replacement. One end of a spring 17 is fixedly connected to the slider 15, and the other end is fixedly connected to the inside of the fixing sleeve 11. The spring 17 is designed to push the slider 15, causing the positioning pin 16 to pull the locking block 18 to securely engage with the inside of the no-till blade 12. The no-till blade 12 is designed for quick and easy installation. The fixing sleeve 11 has a sliding connection to the positioning pin 16, and the fixing sleeve 11 also has a sliding connection to the spring 17. The combination of the slider 15, positioning pin 16, spring 17, locking block 18, and handle 19 eliminates the need for disassembly tools, allowing operators to quickly install and remove the no-till blade 12. The end of the no-till blade 12 is close to the drive shaft 1, and the positioning pin 16 is connected to the inside of the opening 13. By pulling the handle 19 outward, the locking block 18 is moved outward, and the no-till blade 12 is secured to the outside of the fixing sleeve 11 and the positioning pin 16. Releasing the handle 19 allows the locking block 18 to securely engage and fix the no-till blade 12, facilitating quick and easy installation.
[0026] To facilitate adjustment of the depth of land reclamation, the interior of the mounting hole 22 is connected by threaded bolts 24, and the outer side of the fixing sleeve 11 is equipped with a reclamation blade 110. The longitudinal moving shaft support 2 drives the guide plate 21 to move longitudinally, which facilitates the adjustment of the height of the no-till blade 12 and the reclamation blade 110, so as to adjust the depth of land reclamation. The interior of the guide plate 21 is connected by threaded bolts 24, and the upper end of the support sleeve 23 is fixedly welded with a baffle 25. The guide plate 21 and the support sleeve 23 are threadedly connected by rotating the tightening bolts 24, which facilitates the installation of the shaft support 2.
[0027] The combination mechanism of this no-till blade and tillage blade, by pulling the handle 19 outward, moves the locking block 18, the positioning pin 16, and the slider 15 outward, causing the locking block 18 to disengage from the no-till blade 12, facilitating upward movement for quick removal and maintenance / replacement. The spring 17 pushes the slider 15, causing the positioning pin 16 to pull the locking block 18 to securely engage the no-till blade 12 internally, facilitating quick and easy installation and removal of the no-till blade 12. The combined design of the slider 15, positioning pin 16, spring 17, locking block 18, and handle 19 eliminates the need for disassembly tools, making disassembly convenient. The operator can quickly install and remove the no-till blade 12. By pulling the handle 19 outward, the locking block 18 moves outward, placing the no-till blade 12 on the outside of the retaining sleeve 11 and the positioning pin 16. Then, the operator releases the handle 19, allowing the locking block 18 to securely engage and fix the no-till blade 12, facilitating quick installation. The operator can also move the guide plate 21 longitudinally by moving the longitudinally moving shaft support 2, which facilitates adjusting the height of the no-till blade 12 and the tillage blade 110 to adjust the depth of tillage. The operator can then tighten the screw 24 to connect the guide plate 21 and the support sleeve 23, facilitating the installation of the shaft support 2.
[0028] 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 combination mechanism of a no-till blade and a tillage blade, comprising a drive shaft (1), a fixing sleeve (11) fixedly welded to the outer side of the drive shaft (1), and a no-till blade (12) clamped to the outer side of the fixing sleeve (11), characterized in that: The no-till blade (12) has an opening (13) inside, and a slot (14) inside. A slider (15) is slidably sleeved inside the fixed sleeve (11). A positioning pin (16) is fixedly welded to one side of the slider (15). A spring (17) is slidably sleeved to the outside of the positioning pin (16). A shaft support (2) is slidably sleeved to the end of the drive shaft (1). A guide plate (21) is fixedly welded to the upper end of the shaft support (2). An installation hole (22) is provided inside the guide plate (21). A support sleeve (23) is sleeved to the outer side of the upper end of the guide plate (21). A bolt (24) is threadedly connected inside the support sleeve (23).
2. The combination mechanism of no-till blade and tillage blade according to claim 1, characterized in that: The no-till blade (12) has a positioning pin (16) inside, and a locking block (18) is fixedly welded to one end of the positioning pin (16). A handle (19) is fixedly welded to one side of the locking block (18), and the locking block (18) is locked inside the slot (14).
3. The combination mechanism of no-till blade and tillage blade according to claim 1, characterized in that: One end of the spring (17) is fixedly connected to the slider (15), and the other end of the spring (17) is fixedly connected to the inside of the fixing sleeve (11).
4. The combination mechanism of no-till blade and tillage blade according to claim 1, characterized in that: The fixing sleeve (11) is internally slidably fitted with a positioning pin (16), and the fixing sleeve (11) is internally slidably fitted with a spring (17).
5. The combination mechanism of no-till blade and tillage blade according to claim 1, characterized in that: The end of the no-till blade (12) is close to the drive shaft (1), and the opening (13) is fitted with a positioning pin (16).
6. The combination mechanism of no-till blade and tillage blade according to claim 1, characterized in that: The interior of the mounting hole (22) is connected by a threaded bolt (24), and a tillage knife (110) is mounted on the outside of the fixing sleeve (11).
7. The combination mechanism of no-till blade and tillage blade according to claim 1, characterized in that: The inside of the guide plate (21) is connected by threaded bolts (24), and the upper end of the support sleeve (23) is fixedly welded with a baffle (25).
Citation Information
Patent Citations
A no -tillage sword and reclamation sword combined mechanism for no -tillage seeder
CN206728527U