Roller wheel structure for paddy field farming machine

Abstract

The utility model belongs to the technical field of rice field farming machines, and particularly relates to a roller wheel structure for a rice field farming machine, which comprises a roller wheel assembly and an auxiliary wheel assembly, the roller wheel assembly comprises a driving wheel ring, a mounting ring and a reinforcing ring; the auxiliary wheel assembly comprises a balance ring, an adhesion layer and resistance increasing protruding blocks, the adhesion layer is fixed to the periphery of the overhanging ring in a hot melting mode, the resistance increasing protruding blocks which are evenly distributed are integrally formed on the periphery of the adhesion layer, and the adhesion layer and the resistance increasing protruding blocks are made of overall vulcanized rubber materials. The roller wheel assembly and the auxiliary wheel assembly are matched, and the auxiliary wheel assembly is firmly fixed to the driving wheel ring through the bolts, so that stress generated when the auxiliary wheel assembly runs on the land is evenly dispersed to the driving wheel ring. The driving wheel ring is tightly attached to the driving disc of the farming machine through the mounting ring, so that weed or stone inclusion can be avoided, the torque load of a connecting bolt of the mounting ring and the driving disc can be reduced, and the amphibious performance is remarkably improved.

Description

Technical Field

[0001] This utility model belongs to the field of paddy field tillage machinery technology, specifically relating to a roller wheel structure for paddy field tillage machinery. Background Technology

[0002] Existing rollers used in paddy field tillers generally possess amphibious capabilities, and their structure mainly consists of welded iron wheels and combined rubber wheels. The rubber wheels are assembled from narrow rubber wheels and a central mounting ring. In actual assembly, due to installation location limitations, there are gaps between the rubber wheel mounting ring, the iron wheel mounting ring, and the drive disc. This not only requires extended screws for fixation but also allows stones or weeds to get stuck during paddy field operations, severely affecting performance. Furthermore, after extending the screws to assemble the iron wheel and rubber wheel, the gap between the rubber wheel mounting ring and the drive disc causes increased friction between the rubber wheel and the ground when the tiller is traveling on land. Due to the machine's weight and strong driving force, this increases the torque load on the mounting ring and screws, potentially causing the screws to break due to excessive torsional stress. This structural defect not only affects the normal operation of the tiller but also reduces the amphibious performance and service life of the rollers. Therefore, this utility model proposes a new roller structure for paddy field tillers to address the above-mentioned technical problems. Utility Model Content

[0003] The purpose of this invention is to provide a roller structure for a rice paddy tiller that can solve the above-mentioned technical problems.

[0004] The specific technical solution adopted by this utility model is as follows:

[0005] This utility model provides a roller wheel structure for a paddy field tiller, including a roller wheel assembly and an auxiliary wheel assembly. The roller wheel assembly includes a drive wheel ring, a mounting ring, and a reinforcing ring. The mounting ring is located at a misalignment on the inner side of the drive wheel ring. Multiple fixed supports are provided inside the drive wheel ring. The multiple fixed supports are distributed at 72° intervals with the mounting ring as the center. One side of the fixed support is welded and fixed to the inner wall of the drive wheel ring, and the other side of the fixed support is welded and fixed to an outer expansion ring. The outer expansion ring is integrally formed on the outer periphery of the mounting ring.

[0006] The auxiliary wheel assembly includes a balance ring, an adhesive layer, and drag-increasing bumps. The adhesive layer is heat-fused and fixed to the outer periphery of the extended ring. The extended ring is integrally fixed to the outer periphery of the balance ring. Multiple evenly distributed drag-increasing bumps are integrally formed on the outer periphery of the adhesive layer. The adhesive layer and drag-increasing bumps are made of integral vulcanized rubber.

[0007] The auxiliary wheel assembly also includes multiple fastening bolts. The balance ring and drive wheel ring have multiple corresponding through holes in the circumferential direction. The fastening bolts pass through two corresponding through holes and are pressed and fixed by the anti-loosening nuts.

[0008] Preferably, the drive wheel ring is provided with two reinforcing rings and multiple booster plates. One side of the multiple booster plates is uniformly welded and fixed to the inner wall of the drive wheel ring along the circumference. The two reinforcing rings axially penetrate the multiple booster plates and are welded and fixed.

[0009] Preferably, the booster plates are provided with multiple reinforcing ribs, which are radially distributed at 90° intervals with the outer expansion ring as the center. One side of the reinforcing rib is welded and fixed to the inner wall of the outer expansion ring, and the other side is welded and fixed to the reinforcing ring near the drive wheel ring.

[0010] Preferably, the fixed support is located between two adjacent booster plates.

[0011] Preferably, the perforation position on the drive wheel ring is circumferentially offset from the fixed support and the booster plate.

[0012] The beneficial effects are:

[0013] 1. This utility model utilizes the cooperation of the roller wheel assembly and the auxiliary wheel assembly, employing multiple bolts to firmly fix the auxiliary wheel assembly to the drive wheel ring. This ensures that the stress generated by the auxiliary wheel assembly during land travel is evenly distributed to the drive wheel ring. The drive wheel ring is tightly fitted to the agricultural machinery drive disc via a mounting ring, which not only prevents weeds or stones from getting trapped but also reduces the torque load on the bolts connecting the mounting ring and the drive disc, significantly improving amphibious performance.

[0014] 2. This utility model utilizes the synergistic effect of the roller wheel assembly and the auxiliary wheel assembly. During paddy field operations, the auxiliary wheel assembly and the roller wheel assembly rotate together and fling off the mud, effectively reducing mud adhesion and enhancing the propulsion efficiency and movement stability of the roller wheel. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the roller assembly structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the auxiliary wheel assembly structure of this utility model.

[0018] The attached diagram lists the components represented by each number as follows:

[0019] 1. Drive wheel ring; 2. Reinforcing ring; 3. Push plate; 4. Outer ring; 5. Fixed support; 6. Reinforcing rib; 7. Mounting ring; 8. Auxiliary wheel assembly; 81. Balance ring; 82. Outer ring; 83. Adhesive layer; 84. Resistance-increasing protrusion; 9. Fastening bolt. Detailed Implementation

[0020] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0021] like Figure 1-3 As shown, a roller wheel structure for a paddy field tiller includes a roller wheel assembly and an auxiliary wheel assembly 8. The roller wheel assembly includes a drive wheel ring 1, a mounting ring 7, and a reinforcing ring 2. The mounting ring 7 is located at a misalignment on the inner side of the drive wheel ring 1. Multiple fixed support columns 5 are provided inside the drive wheel ring 1. The multiple fixed support columns 5 are distributed at 72° intervals with the mounting ring 7 as the center. One side of the fixed support column 5 is welded and fixed to the inner wall of the drive wheel ring 1, and the other side of the fixed support column 5 is welded and fixed to the outer expansion ring 4. The outer expansion ring 4 is integrally formed on the outer periphery of the mounting ring 7.

[0022] The auxiliary wheel assembly 8 includes a balance ring 81, an adhesive layer 83, and drag-increasing protrusions 84. The adhesive layer 83 is heat-fused and fixed to the outer periphery of the extended ring 82. The extended ring 82 is integrally fixed to the outer periphery of the balance ring 81. Multiple evenly distributed drag-increasing protrusions 84 are integrally formed on the outer periphery of the adhesive layer 83. The adhesive layer 83 and the drag-increasing protrusions 84 are made of integral vulcanized rubber.

[0023] The auxiliary wheel assembly 8 also includes multiple fastening bolts 9. The balance ring 81 and the drive wheel ring 1 have multiple corresponding through holes in the circumferential direction. The fastening bolts 9 pass through two corresponding through holes and are pressed and fixed by the anti-loosening nuts.

[0024] As an optional implementation, the drive wheel ring 1 is provided with two reinforcing rings 2 and multiple booster plates 3. One side of the multiple booster plates 3 is uniformly welded and fixed to the inner wall of the drive wheel ring 1 along the circumference. The reinforcing rings 2 are made of thicker steel bars and formed into a ring shape. The two reinforcing rings 2 axially penetrate the multiple booster plates 3 and are welded and fixed, so that the thrust is enhanced by the booster plates 3 when the roller wheel assembly rotates.

[0025] See attached document Figure 2 Multiple booster plates 3 are provided with multiple reinforcing ribs 6. The multiple reinforcing ribs 6 are radially distributed at 90° intervals with the outer expansion ring 4 as the center. One side of the reinforcing rib 6 is welded and fixed to the inner wall of the outer expansion ring 4, and the other side is welded and fixed to the reinforcing ring 2 near the drive wheel ring 1, so as to improve the structural strength and fatigue resistance of the roller wheel assembly.

[0026] Furthermore, the fixed support 5 is located between two adjacent booster plates 3, so that the fixed support 5 and the booster plate 3 form an interlaced layout, which optimizes welding stress and assembly stability.

[0027] Furthermore, the perforation positions on the drive wheel ring 1 are circumferentially offset from the fixed support 5 and the booster plate 3, ensuring that the auxiliary wheel assembly 8 is securely connected to the drive disc by multiple high-strength bolts, thereby enhancing the overall installation rigidity and power transmission efficiency.

[0028] When using the above structure, first align the balance ring 81 of the auxiliary wheel assembly 8 with the drive wheel ring 1 of the roller wheel assembly, ensuring that their through holes correspond. Then, tighten the bolts 9 and nuts to fix the auxiliary wheel assembly 8 onto the drive wheel ring 1. Subsequently, tightly fit the mounting ring 7 of the roller wheel assembly against the drive disc of the tiller, and secure it with bolts and nuts to ensure that the mounting ring 7 is firmly attached to the side of the drive disc.

[0029] In actual use, the drag-increasing protrusions 84 on the auxiliary wheel assembly 8 can provide uniform grip when driving on land, so that the driving force of the agricultural machine is evenly transmitted to the drive wheel ring 1, thereby achieving stable movement through the drag-increasing protrusions 84 and significantly improving the amphibious performance.

[0030] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All standard parts used in this application can be purchased from the market, and can be customized according to the description and drawings. The specific connection methods of each part all adopt conventional methods such as bolts, rivets, and welding, which are mature technologies in the prior art. The machinery, parts, and equipment all adopt conventional models in the prior art. This application is mainly used to protect mechanical devices. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, are implemented according to conventional methods in the field.

Claims

1. A roller structure for a paddy field tiller, characterized in that: The assembly includes a roller wheel assembly and an auxiliary wheel assembly (8). The roller wheel assembly includes a drive wheel ring (1), a mounting ring (7), and a reinforcing ring (2). The mounting ring (7) is located at the misalignment of the inner side of the drive wheel ring (1). The drive wheel ring (1) is provided with multiple fixed support columns (5). The multiple fixed support columns (5) are distributed at 72° intervals with the mounting ring (7) as the center. One side of the fixed support column (5) is welded and fixed to the inner side wall of the drive wheel ring (1), and the other side of the fixed support column (5) is welded and fixed to the outer expansion ring (4). The outer expansion ring (4) is integrally formed on the outer periphery of the mounting ring (7). The auxiliary wheel assembly (8) includes a balance ring (81), an adhesive layer (83), and drag-increasing bumps (84). The adhesive layer (83) is heat-fused and fixed to the outer periphery of the extended ring (82). The extended ring (82) is integrally fixed to the outer periphery of the balance ring (81). The outer periphery of the adhesive layer (83) is integrally formed with multiple evenly distributed drag-increasing bumps (84). The adhesive layer (83) and the drag-increasing bumps (84) are made of integral vulcanized rubber. The auxiliary wheel assembly (8) also includes multiple fastening bolts (9). The balance ring (81) and the drive wheel ring (1) have multiple corresponding through holes in the circumferential direction. The fastening bolts (9) pass through two corresponding through holes and are pressed and fixed by the anti-loosening nuts.

2. The roller structure for a paddy field tiller according to claim 1, characterized in that: The drive wheel ring (1) is provided with two reinforcing rings (2) and multiple booster plates (3). One side of the multiple booster plates (3) is uniformly welded and fixed to the inner wall of the drive wheel ring (1) along the circumference. The two reinforcing rings (2) axially penetrate the multiple booster plates (3) and are welded and fixed.

3. The roller structure for a paddy field tiller according to claim 2, characterized in that: Multiple reinforcing ribs (6) are provided inside the multiple booster plates (3). The multiple reinforcing ribs (6) are radially distributed at 90° intervals with the outer expansion ring (4) as the center. One side of the reinforcing rib (6) is welded and fixed to the inner wall of the outer expansion ring (4), and the other side is welded and fixed to the reinforcing ring (2) near the drive wheel ring (1).

4. The roller structure for a paddy field tiller according to claim 3, characterized in that: The fixed support (5) is located between two adjacent booster plates (3).

5. The roller structure for a paddy field tiller according to claim 4, characterized in that: The perforation on the drive wheel ring (1) is circumferentially offset from the fixed support (5) and the booster plate (3).

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