Double-blade weeding wheel

Abstract

The utility model discloses a double-blade weeding wheel, and relates to the technical field of agricultural machinery. The weeding device structurally comprises a wheel shaft, a left anti-winding tool rest, a middle tool rest, a right anti-winding tool rest and weeding blades. Two pairs of pin holes are symmetrically formed in two ends of the axle; the left anti-winding knife rest, the middle knife rest and the right anti-winding knife rest are coaxially arranged on the wheel shaft in a penetrating manner and are welded and fixed on the wheel shaft; a group of weeding blades are uniformly distributed between the left anti-winding knife rest and the middle knife rest; another group of weeding blades are uniformly distributed between the middle knife rest and the right anti-winding knife rest; the two groups of weeding blades and the middle knife rest are sequentially connected in a staggered manner; the two groups of weeding blades are of a V-shaped structure which is rotationally arranged in the same direction. By means of the innovative combination of the double-blade symmetrical layout and the dynamic anti-winding technology, the efficiency bottleneck and the maintenance problem of a traditional structure are systematically solved, and a breakthrough solution is provided for the field of mechanical weeding.

Description

Technical Field

[0001] This utility model belongs to the field of agricultural machinery technology, and in particular relates to a double-blade weeding wheel. Background Technology

[0002] In agriculture, landscaping, and municipal greening, weeding is a crucial step in maintaining the growing environment for crops and preserving the aesthetic appeal of the landscape. Traditional weeding methods mainly rely on manual pulling or chemical spraying, but these methods suffer from low efficiency, high costs, and environmental pollution. With the promotion of mechanized operations, single-blade weeding wheels have gradually become the mainstream tool, as they cut weeds with rotating blades, thus improving operational efficiency to a certain extent.

[0003] However, existing single-blade weeding wheel technology still has significant drawbacks: First, the blades are prone to getting tangled in tall vines when rotating, leading to frequent shutdowns for cleaning and severely affecting the continuity of operations; second, the single blade has a limited cutting range, requiring multiple round trips between rows or in areas with dense weeds, resulting in insufficient weed coverage and rapid local wear of the blades, leading to a significant decrease in effectiveness in the later stages; third, the single blade bears all the cutting resistance, which can easily cause the blades to chip or deform in hard environments, increasing maintenance costs.

[0004] To address the aforementioned issues, the industry has attempted improvements such as optimizing blade materials and adjusting rotation speed, but none of these methods have fundamentally resolved the contradictions between entanglement, efficiency, and durability. For example, while increasing blade hardness can delay wear, it exacerbates the entanglement problem; increasing rotation speed can enhance cutting force, but it leads to a surge in power load and further increases energy consumption. Therefore, developing a new type of weeding device that combines anti-entanglement performance with high-efficiency cutting has become a key technological requirement for promoting green mechanized operations. Utility Model Content

[0005] The purpose of this invention is to provide a double-blade weeding wheel that solves the problem of easy tangling of existing single-blade weeding wheels through an innovative combination of a symmetrical double-blade layout and dynamic anti-tangling technology.

[0006] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0007] This utility model is a double-blade weeding wheel, including a wheel axle, a left anti-tangling blade holder, a middle blade holder, a right anti-tangling blade holder, and weeding blades; two pairs of pin holes are symmetrically opened at both ends of the wheel axle; the left anti-tangling blade holder, the middle blade holder, and the right anti-tangling blade holder are coaxially mounted on the wheel axle and welded to the wheel axle; a set of weeding blades is evenly distributed between the left anti-tangling blade holder and the middle blade holder; another set of weeding blades is evenly distributed between the middle blade holder and the right anti-tangling blade holder; the two sets of weeding blades are connected to the middle blade holder in a staggered manner; the two sets of weeding blades are arranged in a V-shaped structure rotating in the same direction.

[0008] As a preferred embodiment of this utility model, the weeding blade is a rectangular steel plate with a thickness of 2-5mm; the V-shaped structure formed between the two sets of weeding blades 5 has an angle of 140°.

[0009] As a preferred embodiment of this utility model, the left anti-tangling blade holder includes a hemispherical groove; a circular ring plate is fixed at the edge of the hemispherical groove; a set of first slots that are evenly distributed on the outer ring surface of the circular ring plate to engage with the weeding blade; the angle between the normal line of the tangent surface of the end of the first slot on the circular ring plate and the inner sidewall of the first slot is in the range of 15°-35°; and a first insertion hole that engages with the wheel axle is opened at the center of the hemispherical groove.

[0010] As a preferred embodiment of this utility model, the structure of the right anti-tangle tool holder and the structure of the left anti-tangle tool holder are symmetrically arranged about the middle tool holder.

[0011] As a preferred embodiment of this utility model, the central blade holder is a circular plate structure; a second insertion hole is provided at the center of the central blade holder to be inserted into the axle; two sets of second slots are evenly distributed on the outer ring surface of the central blade holder to be inserted into the weeding blade; the angle between the normal line of the tangent surface of the end of the second slot on the central blade holder and the inner sidewall of the second slot is in the range of 15°-35°.

[0012] As a preferred technical solution of this utility model, the number of weeding blades in a set is 6-8; multiple fan-shaped windows are evenly distributed on the central blade holder.

[0013] This utility model has the following beneficial effects:

[0014] 1. This utility model's double-blade weeding wheel drives the left, middle, and right anti-tangling blade holders to rotate synchronously via a rotating axle, causing two sets of weeding blades arranged in a V-shape and rotating in the same direction to form a continuous cutting surface. This design significantly increases the weeding area covered by a single rotation, completing more cutting actions per unit time, thus improving efficiency compared to the traditional single-blade structure.

[0015] 2. The V-shaped blade structure of this utility model, combined with a tilt angle of 15°-35°, generates a centrifugal weed-throwing effect during rotation. After the weeds are quickly cut, they are immediately thrown away from the blade wheel by centrifugal force, reducing the entanglement rate compared to the traditional single-blade structure. It is particularly suitable for environments with tall, vine-like weeds.

[0016] 3. The symmetrical double-blade layout of this utility model evenly distributes cutting resistance, and the reinforced steel plate design at the blade root enhances impact resistance. This structural innovation extends blade life, while the anti-tangling design reduces downtime for cleaning, lowers maintenance costs, and significantly improves the overall durability of the equipment.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the double-blade weeding wheel of this utility model.

[0020] Figure 2 This is a front view of a double-blade weeding wheel.

[0021] Figure 3 This is a left view of a double-bladed weeding wheel.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Axle, 11-Pin hole, 2-Left anti-tangling blade holder, 21-Hemispherical groove, 22-Circular plate, 23-First slot, 24-First insertion hole, 3-Middle blade holder, 31-Second insertion hole, 32-Second slot, 33-Fan-shaped window, 4-Right anti-tangling blade holder, 5-Weeding blade. Detailed Implementation

[0024] 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 scope of protection of the present utility model. Specific Implementation Example 1:

[0026] Please see Figure 1-3As shown, this utility model is a double-blade weeding wheel, including an axle 1, a left anti-tangling blade holder 2, a middle blade holder 3, a right anti-tangling blade holder 4, and weeding blades 5. Two pairs of pin holes 11 are symmetrically provided at both ends of the axle 1 for fixing and connecting to a micro-tiller, ensuring stable operation of the weeding wheel. The left anti-tangling blade holder 2, the middle blade holder 3, and the right anti-tangling blade holder 4 are coaxially mounted on the axle 1 and welded to it. A set of weeding blades 5 are evenly welded and fixed between the left anti-tangling blade holder 2 and the middle blade holder 3. Another set of weeding blades 5 is evenly welded and fixed between the middle blade holder 3 and the right anti-tangling blade holder 4. The two sets of weeding blades 5 are connected to the middle blade holder 3 in an alternating manner. The two sets of weeding blades 5 are arranged in a V-shaped structure rotating in the same direction. Each set of weeding blades 5 contains 6-8 blades; this embodiment uses 6 blades.

[0027] The weeding blade 5 is made of rectangular steel plate with a thickness of 2-5mm, ensuring its strength and durability. The V-shaped structure formed by the two sets of weeding blades 5 has an angle of 140°. This design, with the two sets of blades 5 applying force to the weeds in a crisscrossing circumferential manner, helps improve weeding efficiency and reduces the possibility of weeds tangling. The special structure of the left anti-tangling blade holder 2 and the right anti-tangling blade holder 4, along with the V-shaped arrangement of the weeding blades 5, effectively reduces the tangling of weeds on the weeding wheel, lowers the cleaning frequency, and improves work efficiency.

[0028] The left anti-tangling blade holder 2 includes a hemispherical groove 21. A circular ring plate 22 is fixed to the edge of the hemispherical groove 21; this design helps prevent weeds from tangling. A set of first slots 23, which engage with the weeding blades 5, are evenly distributed on the outer surface of the circular ring plate 22. The angle between the normal to the tangent surface of the first slot 23 on the circular ring plate 22 and the inner wall of the first slot 23 ranges from 15° to 35°; this angle design helps the weeding blades 5 better cut into the soil and cut weeds. A first insertion hole 24, which engages with the axle 1, is located at the center of the hemispherical groove 21. The structure of the right anti-tangling blade holder 4 is symmetrical to that of the left anti-tangling blade holder 2 about the central blade holder 3; these details will not be elaborated here. Together, they constitute the anti-tangling structure on both sides of the double-blade weeding wheel.

[0029] The central blade holder 3 is a circular plate structure. A second insertion hole 31, which engages with the wheel axle 1, is located at the center of the central blade holder 3, serving as a connection and support. Two sets of second slots 32, which engage with the weeding blades 5, are evenly distributed on the outer ring surface of the central blade holder 3. The angle between the normal to the tangent surface of the end of the second slot 32 on the central blade holder 3 and the inner wall of the second slot 32 ranges from 15° to 35°, matching the slot angles of the left and right anti-entanglement blade holders to ensure the stability of the blade installation and cutting efficiency. Multiple fan-shaped windows 33 are evenly distributed on the central blade holder 3. These windows not only help reduce the overall weight but also increase ventilation and reduce resistance during operation. After the weeds are quickly cut, they are immediately flung away from the blade wheel by centrifugal force, resulting in a lower entanglement rate compared to traditional single-blade structures, making it particularly suitable for environments with tall, vine-like weeds.

[0030] The dual-blade weeding reel rotates synchronously via its axle, driving the left anti-tangling blade holder 2, the middle blade holder 3, and the right anti-tangling blade holder 4. This, in turn, drives two sets of weeding blades 5 to perform the cutting operation. The two sets of weeding blades are arranged in a V-shape, rotating in the same direction. This design allows the blades to form a continuous cutting surface during rotation, significantly improving weeding efficiency. Simultaneously, the V-shape also helps reduce weed entanglement on the blades, maintaining the reel's continuous and efficient operation.

[0031] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0032] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A double-blade weeding wheel, characterized in that: Includes wheel axle (1), left anti-tangling blade holder (2), middle blade holder (3), right anti-tangling blade holder (4), and weeding blade (5); The axle (1) has two pairs of pin holes (11) symmetrically opened at both ends; The left anti-tangle tool holder (2), the middle tool holder (3) and the right anti-tangle tool holder (4) are coaxially mounted on the wheel axle (1) and welded to the wheel axle (1); A set of weeding blades (5) is evenly distributed between the left anti-tangling blade holder (2) and the middle blade holder (3); another set of weeding blades (5) is evenly distributed between the middle blade holder (3) and the right anti-tangling blade holder (4); the two sets of weeding blades (5) are connected to the middle blade holder (3) in a staggered manner; the two sets of weeding blades (5) are arranged in a V-shaped structure with rotating in the same direction.

2. The double-blade weeding wheel according to claim 1, characterized in that, The weeding blade (5) is a rectangular steel plate with a thickness of 2-5mm; the V-shaped structure formed between the two sets of weeding blades (5) has an angle of 140°.

3. The double-blade weeding wheel according to claim 1, characterized in that, The left anti-tangling blade holder (2) includes a hemispherical groove (21); a circular ring plate (22) is fixed at the edge of the hemispherical groove (21); a set of first slots (23) that are evenly distributed on the outer ring surface of the circular ring plate (22) to be inserted and cooperate with the weeding blade (5); the angle between the normal line of the tangent surface of the end of the first slot (23) on the circular ring plate (22) and the inner side wall of the first slot (23) is 15°-35°; a first insertion hole (24) that is inserted and cooperates with the wheel axle (1) is opened at the center of the hemispherical groove (21).

4. The double-blade weeding wheel according to claim 1, characterized in that, The structure of the right anti-tangle tool holder (4) and the structure of the left anti-tangle tool holder (2) are symmetrically arranged about the middle tool holder (3).

5. The double-blade weeding wheel according to claim 3, characterized in that, The central blade holder (3) is a circular plate structure; the center of the central blade holder (3) is provided with a second insertion hole (31) that is connected to the wheel axle (1); the outer ring surface of the central blade holder (3) is provided with two sets of second slots (32) that are connected to the weeding blade (5); the angle between the normal line of the tangent surface of the end of the second slot (32) on the central blade holder (3) and the inner sidewall of the second slot (32) is 15°-35°.

6. The double-blade weeding wheel according to claim 5, characterized in that, The number of weeding blades (5) in a set is 6-8; the central blade holder (3) is provided with multiple fan-shaped windows (33) evenly distributed.

Images