Anti-winding roller device of no-tillage seeder

By adopting a splined shaft driven crushing assembly and anti-winding blades on the no-till seeder, the problem of entanglement in the rotary blade device is solved, achieving efficient crushing and flexible adaptation to different agronomic operation requirements, thus improving the equipment's versatility and operational reliability.

CN224583768UActive Publication Date: 2026-08-04SHOUGUANG LONGXIANG MASCH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHOUGUANG LONGXIANG MASCH CO LTD
Filing Date
2025-09-12
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

The rotary cutter device of existing no-till planters is prone to tangling when cutting long straw, which increases the load on the unit, reduces operating efficiency, and the non-adjustable cutter shaft structure makes it difficult to adapt to different agronomic requirements.

Method used

The spline shaft driven crushing and cutting assembly includes crushing blades and anti-tangling blades. Through modular design, the assembly width is adjustable. Combined with an anti-pin-off structure, it prevents tangling and can be flexibly combined to adapt to different crop row spacings and plot conditions.

Benefits of technology

It effectively prevents tangling, improves operational reliability and versatility, meets the needs of different agronomic practices and plots, and enhances operational efficiency and equipment adaptability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a kind of no-tillage seeding machine anti-winding hob devices, including driving shaft, driving shaft is spline shaft, multiple crushing components and hob assembly are sleeved on driving shaft, and crushing component and hob assembly are slidably installed to the main body of driving shaft along the end of driving shaft;Crushing component includes spline sleeve A, multiple knife holders that are circumferentially distributed are fixedly connected to the periphery of spline sleeve A, and crushing blade is installed in the end of the knife holder away from spline sleeve A;Hob assembly includes spline sleeve B, and the length of spline sleeve B is same with spline sleeve A, two cutterheads that are side by side arranged are sleeved on the main body of spline sleeve B, and anti-winding blade that is arranged in pairs is installed on the periphery of cutterhead.The hob device provided by the utility model can solve the problem of easy winding of straw and rhizome, can meet the needs of different agronomy and plot, and improve the versatility and adaptability of equipment.
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Description

Technical Field

[0001] This utility model relates to an anti-tangling roller device for a no-till seeder, specifically, it belongs to the technical field of no-till seeders. Background Technology

[0002] No-till seeding is an agricultural technique that involves direct sowing of seeds on land with the stubble of the previous crop, without the need for traditional tillage. This technology can complete furrowing and sowing in one operation, saving time and labor and increasing sowing efficiency. The rotary blade device of the no-till seeder can rotate and crush the soil and crop stubble, ensuring that crop seeds can be directly sown in wheat or corn stubble fields without land preparation. However, practical experience has shown that the rotary blade device of the no-till seeder still has the following technical challenges: When the rotary cutter is cutting long straw, it is easy for the material to get tangled on the cutter shaft like a rope. As the tangled material accumulates, it will eventually severely hinder the rotation of the cutter shaft, causing the unit load to increase sharply or even stop. Frequent manual cleaning is required, which greatly reduces the efficiency and reliability of the operation. The cutter shaft assembly of the rotary cutter device is often an integral welded or fixed structure with non-adjustable width. It is difficult for a single machine to flexibly adapt to different agronomic requirements and meet the row spacing and ridge spacing requirements of different crops.

[0003] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Utility Model Content

[0004] This utility model addresses the shortcomings of the prior art by providing an anti-tangling rotary blade device for a no-till planter, which can solve the problem of straw and rootstock easily getting tangled, meet the needs of different agronomic practices and plots, and improve the versatility and adaptability of the equipment.

[0005] To solve the above technical problems, the present invention adopts the following technical solution: The anti-winding roller blade device for a no-till seeder includes a drive shaft, which is a splined shaft. Multiple crushing components and roller blade assemblies are mounted on the drive shaft and are slidably installed on the main body of the drive shaft along its end. The crushing component includes a splined sleeve A, and multiple circumferentially distributed blade holders are fixed to the periphery of the splined sleeve A. Crushing blades are installed in the interior of the blade holders at the ends away from the splined sleeve A. The roller blade assembly includes a splined sleeve B, which is the same length as the splined sleeve A. Two blade discs are mounted side by side on the main body of the splined sleeve B, and anti-winding blades are installed in pairs around the periphery of the blade discs.

[0006] Furthermore, two anti-detachment pins are installed near the end of the drive shaft, with the axis of the anti-detachment pins perpendicularly intersecting the axis of the drive shaft.

[0007] Furthermore, spline sleeve A mates with the drive shaft, and spline sleeve B mates with the drive shaft.

[0008] Furthermore, the tool holder and spline sleeve A are fixedly connected by welding.

[0009] Furthermore, the cutter head and spline sleeve B are fixedly connected by welding.

[0010] Furthermore, the outer periphery of the cutter head is provided with a mounting groove for installing anti-tangle blades.

[0011] Furthermore, each cutter head has four mounting slots on its periphery.

[0012] Furthermore, each set of anti-tangle blades includes two vertically arranged anti-tangle blades, which are rectangular in structure.

[0013] Furthermore, the two ends of the rectangular structure along its length are fixedly connected to the cutter head by welding.

[0014] Compared with the prior art, the present invention, by adopting the above technical solution, has the following advantages: The splined shaft drives the shredder blades and anti-tangling blades to rotate at high speed. The shredder blades can efficiently shred the crop roots and straw remaining on the ground, while the anti-tangling blades, through their unique motion and structure, effectively cut off and bounce away easily tangled roots and straw, fundamentally eliminating the tangling phenomenon and ensuring the passability and operational reliability of the no-till planter under high residual soil conditions. The crushing and rotary blade components adopt a modular design with the same width. Users can freely alternate or group the crushing and rotary blade components according to the actual crop row spacing, ridge spacing, and the amount of residue in the field, which further increases the versatility and adaptability of the device and can meet the needs of different agronomic practices and fields.

[0015] The present invention will now be described in detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the present invention in another state; Figure 3 This is a schematic diagram of the crushing component; Figure 4 This is a structural schematic diagram of the hobbing cutter assembly; Figure 5 This is a schematic diagram showing the connection between the cutter head and the anti-tangle blade.

[0017] In the figure, 1-drive shaft, 2-crushing assembly, 21-spline sleeve A, 22-blade holder, 23-crushing blade, 3-roller assembly, 31-spline sleeve B, 32-blade disc, 33-mounting groove, 34-anti-winding blade, 4-anti-detachment pin. Detailed Implementation

[0018] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model are now described with reference to the accompanying drawings.

[0019] like Figures 1-5 As shown in the figure, this utility model provides an anti-winding roller device for a no-till seeder, including a drive shaft 1, which is a splined shaft. Multiple crushing components 2 and roller components 3 are sleeved on the drive shaft 1. The crushing components 2 and roller components 3 are slidably mounted on the main body of the drive shaft 1 along the end of the drive shaft 1. The drive shaft 1 can transmit torque to the crushing components 2 and roller components 3.

[0020] Two anti-detachment pins 4 are installed on the drive shaft 1 near its end. The axis of the anti-detachment pins 4 is perpendicular to the axis of the drive shaft 1. The anti-detachment pins 4 position and install the crushing component 2 and the roller blade component 3 on the drive shaft 1.

[0021] The crushing assembly 2 includes a spline sleeve A21, which mates with the drive shaft 1. Multiple circumferentially distributed blade holders 22 are fixedly connected to the periphery of the spline sleeve A. The blade holders 22 are welded to the spline sleeve A. Crushing blades 23 are installed at the ends of the blade holders 22 furthest from the spline sleeve A. The crushing blades 23 rotate at high speed with the drive shaft 1 to crush the roots and stems of crops on the surface and in the shallow soil layer.

[0022] The hobbing cutter assembly 3 includes a spline sleeve B31, which is fitted with the drive shaft 1. The spline sleeve B31 has the same length as the spline sleeve A.

[0023] The crushing component 2 and the roller cutter component 3 have the same width, so they can be flexibly spliced ​​and assembled according to the required ridge spacing and row spacing. The crushing component 2 and the roller cutter component 3 can be set alternately or in groups.

[0024] The spline sleeve B31 has two cutter discs 32 arranged side by side on its main body. The cutter discs 32 are fixedly connected to the spline sleeve B31 by welding. The outer periphery of the cutter discs 32 has four circumferentially distributed mounting grooves 33. Anti-winding blades 34 are installed in pairs in the mounting grooves 33.

[0025] Each set of anti-winding blades 34 includes two vertically arranged anti-winding blades 34. The anti-winding blades 34 are rectangular structures, and the two ends of the rectangular structures along the length direction are respectively welded and fixedly connected to the cutter head 32.

[0026] The specific working principle of this utility model is as follows: In no-till seeding operations, power is transmitted through the spline shaft to drive the shredder blade 23 and the anti-tangling blade 34 to rotate at high speed. The shredder blade 2 can efficiently shred the crop roots and straw remaining on the ground, while the anti-tangling blade 34, through its unique movement mode and structure, effectively cuts off and bounces away easily tangled roots and straw, fundamentally eliminating the tangling phenomenon and ensuring the passability and operational reliability of the no-till seeder under high residual ground conditions.

[0027] The crushing and rotary blade components adopt a modular design with the same width. Users can freely alternate or group the crushing and rotary blade components according to the actual crop row spacing, ridge spacing, and the amount of residue in the field, which further increases the versatility and adaptability of the device and can meet the needs of different agronomic practices and fields.

[0028] The above description provides examples of the preferred embodiments of this utility model. Any aspects not detailed herein are common knowledge to those skilled in the art. The scope of protection of this utility model is determined by the claims. Any equivalent modifications based on the technical teachings of this utility model are also within the scope of protection of this utility model.

Claims

1. An anti-tangling rotary blade device for a no-till planter, characterized in that: The device includes a drive shaft (1), which is a spline shaft. Multiple crushing components (2) and a roller cutter assembly (3) are mounted on the drive shaft (1). The crushing components (2) and the roller cutter assembly (3) are slidably mounted on the main body of the drive shaft (1) along the end of the drive shaft (1). The crushing component (2) includes a spline sleeve A (21). Multiple circumferentially distributed cutter holders (22) are fixed to the periphery of the spline sleeve A. Crushing blades (23) are installed in the end of the cutter holders (22) away from the spline sleeve A. The roller cutter assembly (3) includes a spline sleeve B (31). The spline sleeve B (31) has the same length as the spline sleeve A. Two cutter discs (32) are mounted side by side on the main body of the spline sleeve B (31). Anti-winding blades (34) are installed in pairs around the cutter discs (32).

2. The anti-winding rotary blade device for no-till seeders as described in claim 1, characterized in that: Two anti-detachment pins (4) are installed on the drive shaft (1) near its end. The axis of the anti-detachment pins (4) is perpendicular to the axis of the drive shaft (1).

3. The anti-winding rotary blade device for no-till seeders as described in claim 1, characterized in that: Spline sleeve A is fitted with drive shaft (1), and spline sleeve B (31) is fitted with drive shaft (1).

4. The anti-winding rotary blade device for no-till seeders as described in claim 1, characterized in that: The tool holder (22) is fixedly connected to the spline sleeve A by welding.

5. The anti-winding rotary blade device for no-till seeders as described in claim 1, characterized in that: The cutter head (32) and the spline sleeve B (31) are fixedly connected by welding.

6. The anti-winding rotary cutter device for no-till seeders as described in claim 1, characterized in that: The outer periphery of the cutter head (32) is provided with a mounting groove (33) for installing an anti-tangle blade (34).

7. The anti-winding rotary blade device for no-till seeders as described in claim 6, characterized in that: Each cutter head (32) has four mounting slots (33) on its periphery.

8. The anti-winding rotary blade device for no-till seeders as described in claim 1, characterized in that: Each set of anti-tangle blades (34) includes two vertically arranged anti-tangle blades (34), and the anti-tangle blades (34) have a rectangular structure.

9. The anti-winding rotary blade device for a no-till seeder as described in claim 8, characterized in that: The two ends of the rectangular structure along its length are fixedly connected to the cutter head (32) by welding.