Rubber wheel for rice transplanter

Abstract

The utility model discloses a kind of anti-trap rubber wheels for rice transplanter, including inner hub, multiple support rods are evenly arranged in the circumferential direction of inner hub, support rod outer end part is connected by the support wheel made of metal material, and support wheel outside is fixed with rubber wheel by vulcanization process coating. Rubber wheel outer circumferential surface is equipped with convex with longitudinal section trapezoidal shape to enhance grip, fin with webbed part is installed on support rod, and the webbed part of fin extends to rubber wheel side edge outside, can realize soil dredging and increase the contact area of wheel body and ground. Rubber wheel is also equipped with obliquely arranged reinforcing rib plate, and the top profile of convex, the top profile of reinforcing rib plate and the top profile of fin webbed part, radial height from inner hub axle center increases in turn. The rubber wheel is through the synergistic effect of multiple structures, significantly improve anti-trap, antiskid performance and overall structural strength, effectively enhance the passability of rice transplanter in paddy field environment, suitable for various rice transplanter assembly use.

Description

Technical Field

[0001] This utility model relates to rubber wheels for farmland, specifically an anti-sinking rubber wheel for a rice transplanter. Background Technology

[0002] In agricultural production, rice transplanters are key equipment for rice cultivation, and their efficiency and reliability directly affect the progress and quality of rice planting. The performance of rice transplanters largely depends on their wheel structure, and the traditional rubber wheels equipped on most rice transplanters currently on the market have significant drawbacks in actual paddy field operations.

[0003] Traditional rubber wheels have a single rubber structure and a small contact area with the paddy field. When driving in muddy or high-water-content paddy fields, the pressure is high, making them easy to get stuck in the mud, affecting the driving speed and even causing the rice transplanter to stop. They need to be dragged manually, which greatly reduces the efficiency of operation. Its anti-slip and anti-sinking design is simple, with only strip or block protrusions on some wheel surfaces. The grip is limited, making it difficult to disperse soil resistance and guide surrounding soil. Soil easily adheres to the wheel, increasing the risk of sinking. The supporting structure relies solely on the simple connection between the wheel hub and spokes, resulting in insufficient overall strength and stability. It is prone to deformation and damage when encountering obstacles such as gravel, weed roots, and stems in paddy fields, shortening its service life and increasing maintenance costs. These shortcomings severely limit the performance of rice transplanters in complex paddy fields, failing to meet the demands of modern agriculture for efficient and stable rice transplanting.

[0004] The patent application with application number CN201820185642.7 discloses a new type of wheel for rice transplanters and a rice transplanter. It mainly relies on the side pyramidal shape to prevent tilting and the circumferential figure-eight wheel teeth to prevent slipping. Although it improves the above-mentioned defects, it still has the problems of being bulky, easy to get stuck in mud, and easy to damage seedlings when it stirs the soil laterally. Utility Model Content

[0005] The present invention aims to solve the above-mentioned technical problems by providing an anti-sinking rubber wheel for a rice transplanter.

[0006] To solve the above-mentioned technical problems, the technical solution provided by this utility model is: a rubber wheel for a rice transplanter to prevent slumping, including an inner hub, wherein a plurality of outwardly extending support rods are evenly arranged in the circumference of the inner hub, characterized in that: it also includes an outer wheel structure, wherein the outer wheel structure includes an annular support wheel and a rubber wheel fixedly covering the outside of the support wheel; The outer circumferential surface of the rubber wheel is provided with a plurality of protrusions spaced apart along the circumference, and the longitudinal section of the protrusions is trapezoidal in shape, narrower at the top and wider at the bottom; the outer end of each support rod is fixedly connected to the support wheel; Each of the support rods is also equipped with fins, the fins having a connecting portion that is sleeved and fixed on the support rod and a web-like portion extending to both sides, the extension direction of the web-like portion being perpendicular to the circumferential surface of the rubber wheel, and the web-like portion of the fin being integrally formed with the rubber wheel.

[0007] In addition, the anti-sinking rubber wheel for rice transplanters proposed in this utility model may also have the following additional technical features: the number of support rods is [number], and they are evenly distributed along the circumference of the inner hub.

[0008] Furthermore, the rubber wheel is also provided with multiple reinforcing ribs, which are sheet-like structures with their surfaces perpendicular to the circumference of the rubber wheel. The reinforcing ribs are distributed along the circumference of the rubber wheel, and each reinforcing rib is located between two adjacent fins and is integrally formed with the rubber wheel. The reinforcing ribs are inclined.

[0009] Furthermore, the radial height of the top profile of the protrusion, the top profile of the reinforcing rib, and the top profile of the web-like portion of the fin from the center of the inner hub increases sequentially.

[0010] Furthermore, the webbed edge of the fin extends to the outer side of the rubber wheel.

[0011] Furthermore, the support wheel is made of metal material, and the rubber wheel is coated and fixed to the support wheel through a vulcanization process.

[0012] The advantages of this utility model compared with the prior art are as follows: This solution effectively solves the defects of traditional rubber wheels through multi-structure collaboration: increasing the contact area to reduce pressure and prevent sinking, multi-component collaboration to enhance grip and prevent slippage, strengthening the structure to increase strength and reduce wear, and improving the overall passability and operating efficiency of the rice transplanter in paddy fields, while reducing maintenance costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the anti-sinking rubber wheel for the rice transplanter of this utility model.

[0014] Figure 2 This is a schematic diagram of the planar structure of the anti-sinking rubber wheel for the rice transplanter of this utility model. Detailed Implementation

[0015] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0016] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the term "connection" should be interpreted broadly, for example, it can be a fixed connection, a detachable connection, or an integral connection; for those skilled in the art, the specific meaning of the above term in this utility model can be understood according to the specific circumstances.

[0017] 0. Working principle of this utility model: The anti-sinking rubber wheel uses the inner hub 1 as its core supporting component. The inner hub 1 is used to connect to the drive shaft of the rice transplanter, providing the foundation for power transmission for the entire wheel. Multiple outwardly extending support rods 2 are evenly arranged around the circumference of the inner hub 1. Preferably, there are five support rods 2. This evenly distributed structure ensures that the supporting force of the inner hub 1 on the external structure is transmitted uniformly, avoiding excessive local stress that could lead to structural damage.

[0018] A support wheel 3 is fixedly connected to the outer end of the support rod 2. The support wheel 3 is made of metal and has high structural strength, which can effectively withstand the external impact force during the wheel's movement, while providing a stable mounting base for the external rubber wheel 4. The rubber wheel 4 is coated and fixed to the support wheel 3 through a vulcanization process. The vulcanization process can make the rubber wheel 4 and the support wheel 3 tightly bonded, preventing separation during long-term use and improving the overall structural stability of the wheel.

[0019] Multiple protrusions 5 are provided on the outer circumferential surface of the rubber wheel 4, which are spaced apart along the circumference. The longitudinal section of the protrusions 5 is a trapezoidal shape that is narrow at the top and wide at the bottom. This trapezoidal structure can enhance the contact area and grip between the protrusions 5 and the soil. When the wheel rolls, the trapezoidal protrusions 5 can be effectively embedded in the soil to prevent the wheel from slipping. At the same time, the narrow top and wide bottom structure makes it easy for the protrusions 5 to detach from the soil and reduce the adhesion of soil.

[0020] Each support rod 2 is also equipped with fins 6. The fins 6 have a connecting portion that is sleeved and fixed to the support rod 2, and web-like portions extending to both sides. The extension direction of the web-like portions is perpendicular to the circumferential surface of the rubber wheel 4 and is integrally formed with the rubber wheel 4. This structural design allows the fins 6 to rotate synchronously with the wheel. During wheel operation, the web-like portions can guide the soil around the wheel, pushing the soil below and to the sides of the wheel outwards, reducing the resistance of the soil to the wheel, and increasing the contact area between the wheel and the ground, thus reducing the pressure of the wheel on the ground and effectively preventing the wheel from sinking. The edges of the web-like portions of the fins 6 extend to the outer side of the rubber wheel 4, further expanding the soil guiding range and improving the anti-sinking effect.

[0021] In addition, the rubber wheel 4 is equipped with multiple reinforcing ribs 7. The reinforcing ribs 7 are sheet-like structures with their surfaces perpendicular to the circumference of the rubber wheel 4. They are distributed along the circumference of the rubber wheel 4 and located between two adjacent fins 6. They are integrally formed with the rubber wheel 4 and are inclined. The reinforcing ribs 7 not only enhance the structural strength of the rubber wheel 4 and prevent it from deforming under stress, but their inclined structure also assists the protrusions 5 and fins 6 in guiding mud during the wheel's rolling process, further improving the wheel's passability.

[0022] Meanwhile, the radial heights of the top contours of the protrusion 5, the top contours of the reinforcing rib 7, and the top contours of the webbed portion of the fin 6 from the axis of the inner hub 1 increase sequentially. This height gradient design ensures that when the wheel contacts the ground, the protrusion 5 contacts the ground first, providing initial anti-slip and gripping effects. Subsequently, the reinforcing rib 7 contacts the ground, assisting in dispersing pressure and guiding soil. Finally, the webbed portion of the fin 6 contacts the ground, further expanding the contact area and guiding range. The three work together to form a progressive anti-slip, anti-slip, and soil guiding mechanism, comprehensively improving the wheel's driving performance in muddy paddy fields.

[0023] 0. Implementation method: The anti-sinking rubber wheels of this rice transplanter will be described in detail below with reference to specific embodiments.

[0024] The anti-sinking rubber wheel of the rice transplanter in this embodiment has an inner hub 1 made of cast iron with an outer diameter of 180mm. The inner diameter is matched with the drive shaft of the rice transplanter to ensure that the inner hub 1 can be stably installed on the drive shaft and realize power transmission. Five support rods 2 are evenly fixed to the circumference of the inner hub 1 by welding. The support rods 2 are made of 45# steel, with a diameter of 25mm and a length of 120mm. The included angle between adjacent support rods 2 is 72°. The evenly distributed support rods 2 ensure uniform transmission of support force to the external structure.

[0025] The outer end of the support rod 2 is fixedly connected to the support wheel 3 by welding. The support wheel 3 is made of stainless steel and has a circular structure. Its inner diameter is matched with the circumference diameter formed by the outer end of the support rod 2. The outer diameter is 420mm and the thickness is 30mm. The stainless steel support wheel 3 has good corrosion resistance and structural strength, and can adapt to the humid environment of paddy fields and withstand the impact force during the wheel's movement.

[0026] The rubber wheel 4 is made of nitrile rubber and is fixed to the support wheel 3 through a vulcanization process. The rubber wheel 4 is 50mm thick, and the vulcanization temperature is controlled at 150-160℃ for 30-40 minutes to ensure a tight bond between the rubber wheel 4 and the support wheel 3, making it difficult to separate. On the outer circumferential surface of the rubber wheel 4, multiple circumferentially spaced protrusions 5 are formed by molding. There are 20 protrusions 5, with a spacing of 65mm between adjacent protrusions. The longitudinal section of each protrusion 5 is trapezoidal, narrower at the top and wider at the bottom, with a top width of 20mm, a bottom width of 35mm, and a height of 30mm. The trapezoidal structure of the protrusions 5 effectively enhances the grip on the soil.

[0027] Each support rod 2 is equipped with fins 6. The fins 6 are integrally formed with the rubber wheel 4 using rubber material. The connecting part is a ring structure with an inner diameter that matches the diameter of the support rod 2. They are fixed to the support rod 2 by interference fit. The web-like part is 100mm long, 80mm wide, and 8mm thick. The extension direction of the web-like part is perpendicular to the circumference of the rubber wheel 4, and the edge of the web-like part extends to the outer side of the rubber wheel 4 with an extension length of 15mm to expand the soil drainage range.

[0028] Eight reinforcing ribs 7 are integrally formed on the rubber wheel 4. The reinforcing ribs 7 are sheet-like structures with a thickness of 6 mm and a height of 40 mm. The surface of the ribs is perpendicular to the circumference of the rubber wheel 4 and is evenly distributed along the circumference of the rubber wheel 4. Each reinforcing rib 7 is located between two adjacent fins 6, and the angle between the reinforcing rib 7 and the circumference of the rubber wheel 4 is set to 15°. The inclined structure facilitates the drainage of soil.

[0029] Meanwhile, the radial height of the top profile of the protrusion 5 from the axis of the inner hub 1 is 320mm, the radial height of the top profile of the reinforcing rib 7 from the axis of the inner hub 1 is 335mm, and the radial height of the top profile of the web-like part of the fin 6 from the axis of the inner hub 1 is 350mm. The three form a progressively increasing height gradient, realizing the progressive functions of anti-sinking, anti-slip and soil drainage.

[0030] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A rubber wheel for a rice transplanter, comprising an inner hub (1), wherein a plurality of outwardly extending support rods (2) are evenly arranged circumferentially on the inner hub (1), characterized in that: It also includes an outer wheel structure, which includes an annular support wheel (3) and a rubber wheel (4) fixedly covering the outside of the support wheel (3). The outer circumferential surface of the rubber wheel (4) is provided with a plurality of protrusions (5) distributed circumferentially, and the longitudinal section of the protrusions (5) is a trapezoidal shape that is narrow at the top and wide at the bottom; the outer end of each support rod (2) is fixedly connected to the support wheel (3). Each of the support rods (2) is also equipped with a fin (6), the fin (6) having a connecting part that is sleeved and fixed on the support rod (2) and a web-like part extending to both sides, the extension direction of the web-like part being perpendicular to the circumferential surface of the rubber wheel (4), and the web-like part of the fin (6) being integrally formed with the rubber wheel (4).

2. The anti-sinking rubber wheel for a rice transplanter according to claim 1, characterized in that: The number of support rods (2) is 5, and they are evenly distributed along the circumference of the inner hub (1).

3. The anti-sinking rubber wheel for a rice transplanter according to claim 1, characterized in that: The rubber wheel (4) is also provided with multiple reinforcing ribs (7), which are sheet-like structures with their surfaces perpendicular to the circumferential surface of the rubber wheel (4). The reinforcing ribs (7) are distributed along the circumference of the rubber wheel (4), and each reinforcing rib (7) is located between two adjacent fins (6) and is integrally formed with the rubber wheel (4); The reinforcing rib (7) is inclined.

4. The anti-sinking rubber wheel for a rice transplanter according to claim 3, characterized in that... The radial heights of the top contour of the protrusion (5), the top contour of the reinforcing rib (7), and the top contour of the web-like part of the fin (6) from the axis of the inner hub (1) increase sequentially.

5. The anti-sinking rubber wheel for a rice transplanter according to claim 1, characterized in that: The webbed edge of the fin (6) extends to the outer side of the rubber wheel (4).

6. The anti-sinking rubber wheel for a rice transplanter according to claim 1, characterized in that: The support wheel (3) is made of metal material, and the rubber wheel (4) is coated and fixed on the support wheel (3) by vulcanization process.

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