An agricultural seeder elastic roller device

Abstract

The utility model discloses an agricultural seeding machine elastic rolling wheel device relates to the agricultural planting technical field. The utility model discloses a rolling wheel body, the rolling wheel body is cylindrical, and its surface equal interval is provided with dishy convex, the broken line board is symmetrically arranged in the both sides of rolling wheel body, the broken line board one end is connected with the seeding machine frame, and its side away from the seeding machine frame constructs the rectangular channel, the inside interval of rectangular channel is fixed with the guide rod, and the surface sliding connection of guide rod has the slide. The utility model discloses with the dish spring double elasticity buffer combination of elastic pad, can realize multistage buffering, can more accurately respond to the terrain fluctuation and the barrier of different degrees, and the self -adaptability of device is greatly promoted, compared with rigid rolling wheel, need not frequent shutdown adjustment device height or avoid the barrier, can keep the continuous stable operation of seeding machine, reduces the work interruption time, and the agricultural seeding operation efficiency is improved significantly.

Description

Technical Field

[0001] This utility model relates to the field of agricultural planting equipment technology, specifically to an elastic pressing wheel device for an agricultural seeder. Background Technology

[0002] In agricultural sowing operations, the compaction roller is a key component of the seeder. Its core function is to compact the soil after sowing, so that the seeds are in close contact with the soil, thereby providing a stable humidity and temperature environment for seed germination and ensuring the emergence rate.

[0003] Currently, most agricultural seeders on the market are equipped with rigid compaction wheels. While this structure provides sufficient strength for basic compaction, in actual operation, farmland often presents uneven terrain, soil containing clods or crop residues, and uneven ridge height. Because rigid compaction wheels cannot adapt to terrain variations, localized pressure concentration easily occurs when the wheel surface contacts the soil. When the wheel rolls over raised areas or clods, the pressure at the contact point increases dramatically, leading to excessive soil compaction, damaging soil aggregate structure, affecting soil aeration and water permeability, and ultimately hindering seed and root growth. This negatively impacts crop emergence quality and subsequent growth. Therefore, we propose an elastic compaction wheel device for agricultural seeders to address these issues. Utility Model Content

[0004] To achieve the above objectives, this utility model specifically adopts the following technical solution:

[0005] An elastic press wheel device for an agricultural seeder includes:

[0006] The pressing wheel body is cylindrical, and its surface is provided with disc-shaped protrusions at equal intervals;

[0007] A zigzag plate is symmetrically arranged on both sides of the press wheel. One end of the zigzag plate is connected to the seeder frame, and a rectangular channel is constructed on the side away from the seeder frame. Guide rods are fixedly installed at intervals inside the rectangular channel. Slide plates are slidably connected between the surfaces of the guide rods. Disc springs are slidably sleeved on both sides of the guide rod surfaces on the slide plates. A screw is threadedly connected to the middle of the slide plate. A limit plate is rotatably connected to the end of the screw near the press wheel through a bearing. A circular channel is constructed inside the press wheel. A connector is fixedly installed at the end of the limit plate away from the screw, and the connector extends into the interior of the circular channel.

[0008] Furthermore, a mounting post is slidably inserted inside the circular channel, and an elastic pad is provided between the outer surface of the mounting post and the inner wall of the circular channel. Connecting grooves are constructed at both ends of the mounting post, and the connector is slidably embedded inside the connecting groove.

[0009] Furthermore, the connector is conical, and the connecting groove is a conical groove.

[0010] Furthermore, the elastic pad is a flexible polyurethane pad.

[0011] Furthermore, the thickness of the elastic pad is 5-10 cm.

[0012] Furthermore, a reinforcing rod is fixedly provided at a distance between the middle of the inner sidewalls of the two folded plates.

[0013] Furthermore, damping rings are provided on both sides of the disc spring on the surface of the guide rod.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model adopts a combination of elastic pads and disc springs for double elastic buffering, which can achieve multi-level buffering and more accurately cope with different degrees of terrain undulations and obstacles, greatly improving the device's adaptability. Compared with rigid press wheels, there is no need to frequently stop to adjust the device height or avoid obstacles, which can keep the seeder operating continuously and stably, reduce operation interruption time, and significantly improve the efficiency of agricultural sowing operations. At the same time, the device has a detachable modular connection, which facilitates the individual replacement and maintenance of parts. When the elastic pads are worn, the disc springs fail, or the press wheel is damaged, there is no need to replace the entire device, only the corresponding damaged parts need to be replaced, reducing the cost of use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0017] Figure 2 This is a top view of the present invention;

[0018] Figure 3 This is a utility model Figure 2 Schematic diagram of cross-section along the middle AA direction;

[0019] Figure 4 This is a utility model Figure 2 Schematic diagram of cross-section along the middle BB direction.

[0020] Reference numerals: 1. Press wheel body; 101. Circular channel; 2. Folded plate; 201. Rectangular channel; 3. Guide rod; 4. Slide plate; 5. Disc spring; 6. Screw; 7. Limiting plate; 701. Connector; 8. Mounting post; 801. Connecting groove; 9. Elastic pad; 10. Reinforcing rod; 11. Damping ring. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0022] This application provides an elastic pressure wheel device for an agricultural seeder, mainly used to solve the problems in the background technology, and provides the following technical solution, which will be combined with the following... Figures 1-4 Please provide a detailed explanation:

[0023] An elastic press wheel device for an agricultural seeder includes:

[0024] The press wheel 1 is cylindrical, and its surface is provided with disc-shaped protrusions at equal intervals.

[0025] A zigzag plate 2 is symmetrically arranged on both sides of the press wheel body 1. One end of the zigzag plate 2 is connected to the seeder frame, and a rectangular channel 201 is constructed on the side away from the seeder frame. Guide rods 3 are fixedly installed at intervals inside the rectangular channel 201. A sliding plate 4 is slidably connected between the surfaces of the guide rods 3. Disc springs 5 ​​are slidably sleeved on both sides of the guide rods 3 on the sliding plate 4. A screw 6 is threadedly connected to the middle of the sliding plate 4. The end of the screw 6 near the press wheel body 1 is rotatably connected to a limit plate 7 through a bearing. The press wheel body 1 has a circular channel 101 inside. A connector 701 is fixedly installed on the end of the limit plate 7 away from the screw 6. The connector 701 extends into the interior of the circular channel 101. A mounting post 8 is slidably inserted into the interior of the circular channel 101. An elastic pad 9 is provided between the outer surface of the mounting post 8 and the inner wall of the circular channel 101. Connecting grooves 801 are constructed at both ends of the mounting post 8. The connector 701 is slidably embedded in the interior of the connecting grooves 801.

[0026] Workflow Description

[0027] Step 1, device assembly:

[0028] First, place the elastic pad 9 on the outer surface of the mounting post 8, ensuring that the elastic pad 9 fits tightly against the mounting post 8 without looseness or wrinkles. Then, slide the mounting post 8 with the elastic pad 9 on it into the circular channel 101 inside the press wheel body 1. During the process, it is necessary to ensure that the mounting post 8 can move smoothly within the circular channel 101, and that the elastic pad 9 can completely fill the gap between the mounting post 8 and the inner wall of the circular channel 101 to avoid shaking after assembly.

[0029] Next, move the press wheel 1, which is assembled with the mounting column 8, between the two symmetrically arranged folded plates 2. Adjust the position of the press wheel 1 so that the conical connecting grooves 801 at both ends of the mounting column 8 are aligned with the connecting heads 701 on the folded plates 2. Then, rotate the screw 6 in the middle of the slide plate 4. Using the threaded engagement between the screw 6 and the slide plate 4, push the limiting plate 7 near the end of the press wheel 1 to move until the connecting head 701 on the limiting plate 7 is precisely embedded in the connecting groove 801 of the mounting column 8. After the connecting head 701 is embedded in the connecting groove 801, the press wheel 1 needs to be manually rotated to check whether it can rotate freely without any jamming or sticking. If there is any problem with smooth rotation, the tightness of the screw 6 needs to be finely adjusted to adjust the fit clearance between the connecting head 701 and the connecting groove 801 until the press wheel 1 rotates flexibly, ensuring that the device can operate normally during operation.

[0030] Step Two, Homework Stage:

[0031] During the operation of the seeder, the compaction wheel 1 rolls synchronously with the seeder to compact the soil after sowing. When the compaction wheel 1 rolls to a raised terrain or over soil clods, it is subjected to an upward impact force. At this time, the compaction wheel 1 presses the elastic pad 9 on the outer surface of the mounting post 8 through the circular channel 101. The elastic pad 9 is compressed and deformed due to the force, absorbing part of the impact force. At the same time, the impact force is transmitted to the screw 6 through the mounting post 8, the connector 701, and the limiting plate 7. The screw 6 pushes the sliding plate 4 to slide away from the compaction wheel 1 on the guide rod 3. The sliding plate 4 compresses the disc spring 5 on one side, and the disc spring 5 further absorbs the impact force, achieving buffering in the longitudinal direction and avoiding local pressure concentration.

[0032] The device features a dual-elastic buffer structure design, employing an elastic pad 9 and a disc spring 5 for multi-level buffering. This allows for more precise handling of varying terrain undulations and obstacles, significantly enhancing the device's adaptability. Compared to rigid press wheels, it eliminates the need for frequent shutdowns to adjust device height or avoid obstacles, ensuring continuous and stable operation of the seeder, reducing downtime, and significantly improving agricultural sowing efficiency. Furthermore, the device's detachable modular connection facilitates individual component replacement and maintenance. When the elastic pad 9 wears down, the disc spring 5 fails, or the press wheel 1 is damaged, the entire device does not need to be replaced; only the corresponding damaged component needs to be replaced, reducing operating costs.

[0033] like Figure 3 As shown, in some embodiments, the connector 701 is conical and the connecting groove 801 is a conical groove. More specifically, the design of the conical connector 701 and the conical groove is highly advantageous. During assembly, the conical structure can guide the connector 701 to be quickly and accurately embedded in the groove, ensuring the coaxiality of the mounting column 8 and the pressing wheel 1, and preventing the wheel from shaking during operation.

[0034] like Figure 4As shown, in some embodiments, the elastic pad 9 is a flexible polyurethane pad. More specifically, the elastic pad 9 is made of flexible polyurethane, which has both excellent elasticity and toughness. It can quickly compress and deform when the compaction wheel encounters a bump or clod, absorb the impact, disperse local pressure, and avoid excessive soil compaction. Flexible polyurethane is wear-resistant and anti-aging, adapts to farmland soil friction and harsh environment, and is not prone to failure after long-term use. It not only ensures the elastic compaction effect, but also extends the service life of the device and reduces maintenance costs.

[0035] like Figure 4 As shown, in some embodiments, the thickness of the elastic pad 9 is 5-10cm. More specifically, the thickness range of the elastic pad 9 is 5-10cm, which can fully fill the gap between the mounting post 8 and the circular channel 101 of the pressing wheel. This avoids the problem of insufficient cushioning and inability to disperse the impact of raised terrain due to excessive thinness, while also preventing excessive thickness from increasing the rotational resistance of the wheel and affecting the smoothness of operation. During operation, this thickness allows the elastic pad 9 to deform reasonably when compressed, effectively absorbing the impact force of crushing clods or raised areas, while quickly rebounding to restore its shape, ensuring a continuous and stable elastic pressing effect. Moreover, this thickness is compatible with the characteristics of flexible polyurethane material, which can balance elasticity, wear resistance and service life, ensuring long-term reliable operation in complex farmland environments.

[0036] like Figure 1 As shown, in some embodiments, reinforcing rods 10 are fixedly provided at intervals between the middle of the inner sidewalls of the two folded plates 2. More specifically, the reinforcing rods 10 are fixed at intervals to connect the two folded plates 2 laterally into a stable whole, which greatly improves the bending and deformation resistance of the folded plates 2, avoids the displacement of the pressing wheel 1 due to structural deformation, and ensures the accuracy of pressing operation. At the same time, the reinforcing rods 10 can also disperse the stress borne by the folded plates 2, reduce local wear, extend the service life of the folded plates 2, and ensure that the device maintains structural stability during long-term high-intensity operation.

[0037] like Figure 1 As shown, in some embodiments, damping rings 11 are provided on both sides of the disc spring 5 on the surface of the guide rod 3. More specifically, when the disc spring 5 extends and retracts with the terrain during operation, the pressing wheel 1 is prone to vibration due to excessively fast elastic rebound, which affects the pressing effect. The damping rings 11 generate damping force through contact friction with the guide rod 3 and the disc spring 5, which can slow down the extension and retraction speed of the disc spring 5, suppress its high-frequency rebound, avoid violent jumping of the wheel, and make the buffer adjustment more stable. At the same time, the damping rings 11 can reduce the direct rigid friction between the disc spring 5 and the slide plate 4 and the guide rod 3, reduce component wear, extend the service life of the disc spring 5 and the guide rod 3, and ensure that the device can perform the elastic pressing function stably for a long time.

[0038] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A flexible press wheel device for an agricultural seeder, characterized in that, include: The pressing wheel body (1) is columnar and has disc-shaped protrusions evenly spaced on its surface; A zigzag plate (2) is symmetrically arranged on both sides of the press wheel body (1). One end of the zigzag plate (2) is connected to the seeder frame, and a rectangular channel (201) is constructed on the side away from the seeder frame. Guide rods (3) are fixedly installed at intervals inside the rectangular channel (201). A sliding plate (4) is slidably connected between the surfaces of the guide rods (3). Disc springs (5) are slidably sleeved on both sides of the guide rods (3) on the sliding plate (4). A screw (6) is threadedly connected to the middle of the sliding plate (4). A limit plate (7) is rotatably connected to the end of the screw (6) near the press wheel body (1) through a bearing. A circular channel (101) is constructed inside the press wheel body (1). A connector (701) is fixedly installed at the end of the limit plate (7) away from the screw (6). The connector (701) extends into the interior of the circular channel (101).

2. The elastic press wheel device for an agricultural seeder according to claim 1, characterized in that, An installation post (8) is slidably inserted inside the circular channel (101). An elastic pad (9) is provided between the outer surface of the installation post (8) and the inner wall of the circular channel (101). Connecting grooves (801) are constructed at both ends of the installation post (8). The connector (701) is slidably embedded inside the connecting groove (801).

3. The elastic press wheel device for an agricultural seeder according to claim 2, characterized in that, The connector (701) is conical, and the connecting groove (801) is a conical groove.

4. The elastic press wheel device for an agricultural seeder according to claim 2, characterized in that, The elastic pad (9) is a flexible polyurethane pad.

5. The elastic press wheel device for an agricultural seeder according to claim 2, characterized in that, The thickness of the elastic pad (9) is 5-10cm.

6. The elastic press wheel device for an agricultural seeder according to claim 1, characterized in that, A reinforcing rod (10) is fixedly provided at a distance between the middle of the inner sidewalls of the two folded plates (2).

7. The elastic press wheel device for an agricultural seeder according to claim 1, characterized in that, The guide rod (3) has damping rings (11) on both sides of the disc spring (5).

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