Paddy field inter-plant weeding wheel and weeding device

Abstract

The utility model discloses a paddy field inter-plant weeding wheel and a weeding device, and belongs to the technical field of agricultural machinery, the paddy field inter-plant weeding wheel is installed on a paddy field walking device and comprises a connecting shaft, a fluted disc and a cutter tooth set, and one end of the connecting shaft is rotationally connected with the paddy field walking device; the fluted disc and the other end of the connecting shaft are coaxially arranged and fixedly connected; the cutter tooth group comprises a plurality of cutter teeth arranged around the outer edge of the fluted disc, the cutter teeth are fixedly connected with the fluted disc, the cutter teeth are spiral, and the cutter teeth are configured to be capable of abutting against paddy field soil, so that the soil disturbance performance is improved, and the weeding rate is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of agricultural machinery, in particular to a paddy field inter-row weeding wheel and a weeding device. Background Art

[0002] In rice production, paddy field weed damage is one of the main factors leading to reduced yields. There is growth competition between weeds and rice. Too many weeds will not only compete for the nutrients needed for rice growth, but also increase the plant density and increase the incidence of diseases and pests. Therefore, effective paddy field weed control is an important guarantee for safe rice production.

[0003] Paddy field weeding primarily relies on manual or chemical weeding. Traditional manual weeding is inefficient and labor-intensive, consuming significant manpower and material resources. While the application of chemical agents can improve weed control efficiency, it can also cause certain pollution to the soil and the rice itself, negatively impacting the agricultural ecological environment. Mechanical weeding, as an environmentally friendly and green method of weed control, not only effectively controls weeds but also effectively improves the soil environment and promotes rice growth and development. Paddy field mechanical weeding is divided into inter-row weeding and inter-plant weeding. Inter-row weeding is relatively easy because there are no crops between rice rows, while inter-plant weeding is more difficult.

[0004] In the related art, due to the complexity of the paddy field environment and the agronomic characteristics of dense rice planting, the existing inter-row weeding mechanism has the problem of poor soil disturbance performance resulting in a low weeding rate. Utility Model Content

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a paddy field inter-row weeding wheel, which is beneficial to improving the soil disturbance performance, thereby improving the weeding rate.

[0006] The utility model also provides a weeding device.

[0007] According to the first embodiment of the present invention, the paddy field inter-row weeding wheel includes: a connecting shaft, one end of which is rotatably connected to the paddy field walking device; a gear plate, which is coaxially arranged and fixedly connected to the other end of the connecting shaft; a tooth group, including a plurality of teeth arranged around the outer edge of the gear plate, the teeth being fixedly connected to the gear plate, the teeth being spiral-shaped, and the teeth being configured to abut against the paddy field soil.

[0008] The paddy field inter-row weeding wheel according to the embodiment of the utility model has at least the following beneficial effects: the paddy field inter-row weeding wheel is installed on the paddy field traveling device, one end of the connecting shaft is rotatably connected to the paddy field traveling device, and the other end is coaxially arranged and fixedly connected to the gear disc, the knife teeth are fixedly connected to the gear disc, and the knife teeth are configured to be able to abut against the paddy field soil. When the paddy field traveling device is traveling, the knife teeth abut against the paddy field soil, causing the gear disc to rotate, and the knife teeth can be inserted into the paddy field soil, shoveling up the soil and weeds beside the crops, thereby removing weeds, and the knife teeth are spiral-shaped. Compared with straight teeth, the paddy field inter-row weeding wheel uses spiral knife teeth, which can change the lift and resistance generated by the soil flowing through the knife teeth and the surface of the knife teeth, thereby enhancing the disturbance and turning ability of the soil, thereby effectively improving the weeding rate.

[0009] According to some embodiments of the present invention, the torsion angle of the blade teeth is 44°.

[0010] The paddy field inter-row weeding wheel sets the depth of the blade teeth inserted into the soil in consideration of the length of the weed root system, and sets the torsion angle of the blade teeth to 44°, which is beneficial to increase the disturbance area of ​​the soil, turning the soil over a larger area, thereby improving the weed removal effect.

[0011] According to some embodiments of the present invention, the blade tooth has a first end and a second end, the first end is connected to the gear plate, and an extension line of the first end toward the second end is arranged at an angle to the center axis of the gear plate.

[0012] Specifically, the blade tooth has a first end and a second end, wherein the first end is connected to the gear disc, and the extension line of the first end toward the second end is arranged at an angle to the central axis of the gear disc, that is, the blade tooth is arranged at an angle along the outer edge of the gear disc. When the second end of the blade tooth is inserted into the paddy field soil, the soil can slide and turn over along the curved surface of the blade tooth, thereby enhancing the disturbance and turning performance of the soil, increasing the disturbance area of ​​the soil, and improving the weed control effect.

[0013] According to some embodiments of the present invention, an angle between an extension line from the first end toward the second end and a central axis of the gear disc is 22°.

[0014] Specifically, the angle between the extension line from the first end to the second end and the central axis of the gear disc is 22°. The paddy field inter-row weeding wheel is conducive to increasing the disturbance area of ​​the soil through the appropriate inclination angle setting of the blade teeth, so that when the blade teeth rotate, the soil and weeds can be effectively shoveled upward and outward, which is conducive to increasing the displacement of the soil, increasing the disturbance area of ​​the soil, and thus enhancing the weeding effect.

[0015] According to some embodiments of the present invention, one end of the cutter tooth is connected to the gear disc, and the other end of the cutter tooth extends in a direction away from the gear disc.

[0016] Specifically, one end of the blade teeth is connected to the gear disc, and the other end extends away from the gear disc. When the gear disc rotates, multiple blade teeth can be alternately inserted into the paddy field soil, thereby disturbing the soil and removing weeds, which is beneficial to improving the growth environment of crops.

[0017] According to some embodiments of the present invention, the width of the blade teeth gradually increases in a direction away from the gear disc.

[0018] Specifically, the width of the blade teeth gradually increases in the direction away from the gear disc. When the gear disc rotates, the wider end of the blade teeth is inserted into the paddy field soil to disturb the soil, which is beneficial to increase the amount of soil disturbance, so that a larger area of ​​soil is turned over and weeds are shoveled out, which is beneficial to reduce the plant density in the paddy field and reduce the chance of disease and insect pests.

[0019] According to some embodiments of the present invention, the tooth length of the blade is 90 mm, the tooth width is 40 mm, and the tooth thickness is 10 mm; and / or,

[0020] The tooth group includes 8 teeth.

[0021] Optionally, the tooth length is 90 mm, the tooth width is 40 mm, and the tooth thickness is 10 mm. The paddy field inter-row weeding wheel uses the amount of soil disturbance as a performance indicator. Through software simulation and actual experiments, the size parameters of the tooth are determined, which is beneficial to increase the amount of soil disturbance, enhance the soil disturbance and turning performance, and thus improve the weeding efficiency; Optionally, the tooth group includes 8 teeth. By setting an appropriate number of teeth, it is beneficial to increase the coverage of the soil disturbance beside the crop, thereby improving the weed removal rate.

[0022] According to some embodiments of the present invention, the gear disc has a diameter of 120 mm and a thickness of 15 to 20 mm.

[0023] Optionally, the diameter of the gear disc is 120 mm and the thickness is 15 to 20 mm. The paddy field inter-row weeding wheel uses the amount of soil disturbance as a performance indicator. Through software simulation and actual experiments, the size parameters of the gear disc are determined, which is conducive to increasing the amount of soil disturbance, enhancing the soil disturbance and turning performance, and thus improving the weeding efficiency.

[0024] According to the second aspect of the present invention, the weeding device includes: a traveling frame configured to be able to travel on a paddy field; a paddy field inter-row weeding wheel as shown in any one of the first aspects, wherein the connecting shaft is rotatably connected to the traveling frame, and the connecting shaft is arranged at an angle to the vertical direction.

[0025] The weeding device according to the embodiment of the present invention has at least the following beneficial effects: the weeding device includes a paddy field inter-row weeding wheel as shown in any one of the first aspects, the paddy field inter-row weeding wheel is installed on the paddy field traveling device, one end of the connecting shaft is rotatably connected to the paddy field traveling device, and the other end is coaxially arranged and fixedly connected to the gear disc, the knife teeth are fixedly connected to the gear disc, and the knife teeth are configured to be able to abut against the paddy field soil. When the paddy field traveling device is traveling, the knife teeth abut against the paddy field soil, causing the gear disc to rotate, and the knife teeth can be inserted into the paddy field soil, shoveling up the soil and weeds beside the crops, thereby removing weeds, and the knife teeth are spiral-shaped. Compared with straight teeth, the paddy field inter-row weeding wheel uses spiral knife teeth, which can change the lift and resistance generated by the soil flowing through the knife teeth and the surface of the knife teeth, thereby enhancing the disturbance and turning ability of the soil, thereby effectively improving the weeding rate.

[0026] According to some embodiments of the present invention, the weeding device further includes a sliding frame and a compression elastic member, the connecting shaft is rotatably connected to the sliding frame, the sliding frame is slidably connected to the traveling frame in the up and down directions, and the two ends of the compression elastic member are respectively connected to the sliding frame and the traveling frame to drive the sliding frame to move downward; and / or,

[0027] A plurality of paddy field inter-row weeding wheels are arranged in an array to form a weeding assembly. At least two weeding assemblies are provided, and every two weeding assemblies are used to weed a row of crops.

[0028] Optionally, considering that the soil in the paddy field has a certain degree of undulation and the root systems of weeds have different heights, the paddy field inter-row weeding wheel also includes a sliding frame and a compression elastic member. The connecting shaft is rotatably connected to the sliding frame, and the sliding frame and the traveling frame are slidingly connected in the up and down directions. The two ends of the compression elastic member are respectively connected to the sliding frame and the traveling frame. When the paddy field inter-row weeding wheel moves to the raised earth mound, the paddy field inter-row weeding wheel can cause the compression elastic member to contract and move upward. When the paddy field inter-row weeding wheel passes over the earth mound, the paddy field inter-row weeding wheel moves downward and resets under the elastic action of the compression elastic member, and the compression elastic member is compressed. The cooperation between the elastic part and the sliding frame enables the paddy field inter-row weeding wheel to automatically adapt to the undulations of the soil, and makes the depth of the blade teeth into the soil relatively fixed, so that the weeds can be removed quickly and efficiently, and it is beneficial to reduce the damage to the crops; optionally, considering that there are weeds on both sides of the crops, multiple paddy field inter-row weeding wheels are provided, and the multiple paddy field inter-row weeding wheels are arranged in an array to form a weeding assembly, and two weeding assemblies are provided, and every two paddy field inter-row weeding wheels are used to weed a row of crops, that is, to weed both sides of the crops at the same time, which is beneficial to improve the weeding efficiency and effect.

[0029] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The present invention will be further described below with reference to the accompanying drawings and embodiments, wherein:

[0031] Figure 1 This is a schematic structural diagram of a paddy field inter-row weeding wheel according to an embodiment of the utility model for weeding between paddy fields;

[0032] Figure 2 for Figure 1 A side view of a paddy field inter-row weeding wheel shown in FIG.

[0033] Figure 3 This is a structural diagram of the connection between the paddy field inter-row weeding wheel and the traveling frame according to one embodiment of the utility model;

[0034] Figure 4 This is a schematic structural diagram of a paddy field inter-row weeding wheel according to an embodiment of the present invention;

[0035] Figure 5 for Figure 4 A front view of a paddy field inter-row weeding wheel shown in FIG;

[0036] Figure 6 for Figure 4 A top view of a paddy field inter-row weeding wheel is shown in FIG;

[0037] Figure 7 for Figure 5 AA cross-sectional view of the paddy field inter-row weeding wheel shown in;

[0038] Figure 8 This is a schematic diagram of two paddy field inter-row weeding wheels weeding the same row of crops according to an embodiment of the utility model.

[0039] Figure Number:

[0040] 100, connecting shaft;

[0041] 200, gear plate;

[0042] 300, blade teeth; 310, first end; 320, second end;

[0043] 400, walking frame;

[0044] 500. Sliding rack. DETAILED DESCRIPTION

[0045] The following describes in detail embodiments of the present invention. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0046] In the description of the present invention, it should be understood that descriptions involving orientation, such as the orientation or positional relationship indicated by up, down, etc., are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0047] In the description of this utility model, "a plurality" means more than two. The use of "first" or "second" is solely for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of technical features indicated, or implicitly indicating the order of the technical features indicated.

[0048] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, and connecting should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0049] Reference Figures 1 to 8 As shown, a paddy field weeding wheel according to one embodiment of the present invention is mounted on a paddy field traveling device, such as a paddy field tractor, a paddy field rotary tiller, a paddy field beater, a paddy field weeder, or a paddy field fertilizer applicator. The paddy field traveling device includes a traveling frame 400, which is movably connected to a traveling structure such as a traveling wheel and a crawler track, enabling travel across the paddy field. Specifically, the paddy field weeding wheel comprises a connecting shaft 100, a gear disc 200, and a tooth assembly.

[0050] Reference Figure 1 、 Figure 2 and Figure 3 As shown, the upper end of the connecting shaft 100 is rotatably connected to the traveling frame 400 of the paddy field traveling device. The connecting shaft 100 can be rotatably connected to the traveling frame 400 via a bearing to improve the smoothness and stability of the rotation of the connecting shaft 100. The gear plate 200 is coaxially arranged and fixedly connected to the lower end of the connecting shaft 100.

[0051] Reference Figure 1 、 Figure 2 and Figure 4As shown, the blade tooth group includes a plurality of blade teeth 300 arranged around the outer edge of the gear plate 200. The blade teeth 300 are fixedly connected to the outer edge of the gear plate 200, and the connecting shaft 100 is arranged at an angle to the vertical direction of the ground.

[0052] Reference Figure 1 、 Figure 2 and Figure 4 As shown, the blade teeth 300 are configured to be able to abut against the paddy field soil. When the paddy field walking device is moving, the blade teeth 300 abut against the paddy field soil, causing the gear disc 200 to rotate, and multiple blade teeth 300 are alternately inserted into the soil. The blade teeth 300 can be inserted into the paddy field soil to shovel up the soil and weeds beside the crops, thereby removing the weeds.

[0053] Reference Figure 1 、 Figure 4 and Figure 6 As shown, specifically, the blade tooth 300 has a first end 310 and a second end 320, the first end 310 is connected to the gear disc 200, and the second end 320 extends in a direction away from the gear disc 200, and the blade tooth 300 is twisted in a spiral shape from the first end 310 to the second end 320. Compared with straight teeth, the paddy field inter-row weeding wheel adopts spiral blade teeth 300, thereby changing the lift and resistance generated by the soil flowing through the blade teeth 300 and the surface of the blade teeth 300, thereby enhancing the disturbance and turning ability of the soil, thereby effectively improving the weeding rate.

[0054] It should be noted that the connecting shaft 100, the gear plate 200 and the cutter teeth 300 can be integrally formed by 3D printing. Alternatively, the connecting shaft 100 and the gear plate 200 can be formed from the same piece of metal material, and the cutter teeth 300 can be fixedly connected to the gear plate 200 by welding.

[0055] Reference Figure 1 、 Figure 5 and Figure 7 As shown, it can be understood that the paddy field inter-row weeding wheel sets the depth of the blade teeth 300 inserted into the soil in consideration of the length of the weed root system, and sets the torsion angle of the blade teeth 300 to 44°, which is beneficial to increase the disturbance area of ​​the soil, so that the soil is turned over over a larger area, thereby improving the weed removal effect. Figure 7 In FIG. 1 , R2 is the torsion angle of the blade tooth 300 .

[0056] Reference Figure 1 、 Figure 5 and Figure 7As shown, the paddy field inter-row weeding wheel changes the flow characteristics of the blade teeth 300 by setting a suitable torsion angle, including the flow of soil through the blade teeth 300 and the lift and resistance generated on the surface of the blade teeth 300, thereby improving the performance and efficiency of the paddy field inter-row weeding wheel. The torsion design of the blade teeth 300 can optimize the disturbance performance of the blade teeth 300 on the soil, and improve the disturbance efficiency and working performance of the blade teeth 300.

[0057] Reference Figure 1 、 Figure 5 and Figure 7 As shown, it can be understood that the tooth 300 has a first end 310 and a second end 320 , the first end 310 is connected to the gear plate 200 , and the extension line of the first end 310 toward the second end 320 is arranged at an angle to the central axis of the gear plate 200 .

[0058] Reference Figure 1 、 Figure 5 and Figure 7 As shown, the blade teeth 300 are arranged obliquely along the outer edge of the gear disc 200. When the second end 320 of the blade teeth 300 is inserted into the paddy field soil, the soil can slide and turn over along the curved surface of the blade teeth 300, thereby enhancing the soil disturbance and turning performance, increasing the soil disturbance area, and improving the weed control effect.

[0059] Reference Figure 1 、 Figure 5 and Figure 7 As shown, specifically, the angle between the extension line of the first end 310 toward the second end 320 and the central axis of the gear disc 200 is 22°. The paddy field inter-row weeding wheel is conducive to increasing the disturbance area of ​​the soil through the appropriate inclination angle setting of the blade teeth 300, so that when the blade teeth 300 rotate, the soil and weeds can be effectively shoveled upward and outward, which is conducive to increasing the displacement of the soil, increasing the disturbance area of ​​the soil, and thus enhancing the weeding effect. Figure 5 In FIG. 3 , R1 is shown as the angle between the extension line from the first end 310 to the second end 320 and the central axis of the gear plate 200 .

[0060] Reference Figure 1 、 Figure 4 and Figure 6 As shown, it can be understood that, specifically, one end of the blade tooth 300 is connected to the gear disc 200, and the other end extends in a direction away from the gear disc 200. When the gear disc 200 rotates, multiple blade teeth 300 can be alternately inserted into the paddy field soil, thereby disturbing the soil and removing weeds, which is beneficial to improving the growth environment of crops.

[0061] Specifically, the width of the blade teeth 300 gradually increases in the direction away from the gear disc 200. When the gear disc 200 rotates, the wider end of the blade teeth 300 is inserted into the paddy field soil to disturb the soil, which is beneficial to increase the amount of soil disturbance, so that a larger area of ​​soil is turned over and weeds are shoveled out, which is beneficial to reduce the plant density in the paddy field and reduce the probability of disease and insect pests.

[0062] Reference Figure 1 、 Figure 3 and Figure 4 As shown, it can be understood that the tooth length of the blade tooth 300 is 90 mm, the tooth width is 40 mm, and the tooth thickness is 10 mm. The paddy field inter-row weeding wheel uses the amount of soil disturbance as a performance indicator. Through software simulation and combined with actual experiments, the size parameters of the blade tooth 300 are determined, which is conducive to increasing the amount of soil disturbance, enhancing the soil disturbance and turning performance, and thus improving the weeding efficiency.

[0063] Reference Figure 1 、 Figure 3 and Figure 4 As shown, the blade tooth group includes 8 blade teeth 300. By setting a suitable number of blade teeth 300, it is beneficial to increase the coverage of the soil disturbance beside the crop, thereby improving the weed removal rate.

[0064] Reference Figure 1 、 Figure 3 and Figure 4 As shown, it can be understood that the diameter of the gear disc 200 is 120 mm and the thickness is 15 to 20 mm. The paddy field inter-row weeding wheel uses the amount of soil disturbance as a performance indicator. Through software simulation and combined with actual experiments, the size parameters of the gear disc 200 are determined, which is conducive to increasing the amount of soil disturbance, enhancing the soil disturbance and turning performance, and thus improving the weeding efficiency.

[0065] Reference Figure 1 、 Figure 3 and Figure 4 As shown, it can be understood that the connecting shaft 100 is a stepped shaft, the diameter of the small end of the connecting shaft 100 is 18, the diameter of the large end is 25mm, and the length is 70mm. The connecting shaft 100 can be rotatably connected to the walking frame 400 through a bearing. The paddy field inter-row weeding wheel controls the size of the connecting shaft 100, which is conducive to ensuring the overall strength and rotation stability of the paddy field inter-row weeding wheel.

[0066] Reference Figure 1 、 Figure 2 and Figure 3As shown, it can be understood that in order to compare the disturbed soil particles under different size parameters of the blade teeth 300 and the gear disc 200, a simulation model of the paddy field inter-row weeding wheel and soil can be established to simulate the operation of the paddy field inter-row weeding wheel walking on the soil, and the soil is sliced ​​with a slice thickness of 15 mm.

[0067] Reference Figure 1 、 Figure 2 and Figure 3 As shown, to more objectively reflect actual operating conditions, the disturbed area of ​​the slice is used as an indicator for statistical analysis of soil disturbance. By statistically calculating the area of ​​the disturbed particles sliced ​​at the lowest point of the simulation model's tooth 300, a relative measurement value can be obtained to compare the changes in soil particle disturbance under different tooth 300 and gear plate 200 structural parameters. Those skilled in the art can use Adobe Photoshop image processing software to calculate the area occupied by the pixels of the disturbed particles within the cross section. The larger the obtained area value, the greater the degree of soil disturbance, thereby determining the preferred structural parameters of the tooth 300 and gear plate 200.

[0068] Reference Figure 1 、 Figure 2 and Figure 3 As shown, because changes in the penetration depth and forward speed of the blade teeth 300 significantly affect the soil disturbance area, when the forward speed changes, the soil disturbance area changes with the trend of the penetration depth; similarly, changes in the penetration depth also affect the trend of the soil disturbance area with forward speed. Those skilled in the art can use Design-Fxpert data analysis software to optimize the test results of various indicators and obtain the optimal operating parameter combination for the inter-row weeding wheel.

[0069] Reference Figure 1 、 Figure 2 and Figure 3 As shown, one embodiment of the present invention provides a weeding device comprising a traveling frame 400 and a paddy field inter-row weeding wheel as described in any of the above embodiments. The traveling frame 400 is configured to travel across a paddy field. The connecting shaft 100 of the paddy field inter-row weeding wheel is rotatably connected to the traveling frame 400, and the connecting shaft 100 is arranged at an angle to the vertical direction.

[0070] Reference Figure 1 、 Figure 2 and Figure 3As shown, the paddy field inter-row weeding wheel is installed on the paddy field traveling device, one end of the connecting shaft 100 is rotatably connected to the paddy field traveling device, and the other end is coaxially arranged and fixedly connected to the gear disc 200, the knife teeth 300 is fixedly connected to the gear disc 200, and the knife teeth 300 are configured to be able to abut against the paddy field soil. When the paddy field traveling device is traveling, the knife teeth 300 abut against the paddy field soil, causing the gear disc 200 to rotate, and the knife teeth 300 can be inserted into the paddy field soil, shoveling up the soil and weeds beside the crops, thereby removing weeds, and the knife teeth 300 are spiral-shaped. Compared with straight teeth, the paddy field inter-row weeding wheel adopts spiral knife teeth 300, thereby changing the lift and resistance generated by the soil flowing through the knife teeth 300 and the surface of the knife teeth 300, thereby enhancing the disturbance and turning ability of the soil, thereby effectively improving the weeding rate.

[0071] Reference Figure 1 、 Figure 2 and Figure 3 As shown, it is understandable that, considering that the soil in the paddy field has a certain degree of undulation and the root systems of weeds have different heights, the weeding device also includes a sliding frame 500 and a compression elastic member. The connecting shaft 100 is rotatably connected to the sliding frame 500, and the sliding frame 500 is slidingly connected to the walking frame 400 in the up and down directions. The two ends of the compression elastic member are respectively connected to the sliding frame 500 and the walking frame 400 to drive the sliding frame 500 to move downward.

[0072] Reference Figure 1 、 Figure 2 and Figure 3 As shown, when the paddy field inter-row weeding wheel moves to the raised earth mound, the paddy field inter-row weeding wheel can cause the compression elastic part to contract and move upward. After the paddy field inter-row weeding wheel passes over the earth mound, under the elastic action of the compression elastic part, the paddy field inter-row weeding wheel moves downward and resets. The cooperation between the compression elastic part and the sliding frame 500 enables the paddy field inter-row weeding wheel to automatically adapt to the soil undulations and makes the depth of the blade teeth 300 into the soil relatively fixed, thereby quickly and efficiently removing weeds and helping to reduce damage to crops.

[0073] It should be noted that the compression elastic member may be a spring, and the sliding stroke of the paddy field inter-row weeding wheel may be controlled by the size and elastic coefficient of the spring.

[0074] Reference Figure 1 、 Figure 2 and Figure 8 As shown, it can be understood that, considering the presence of weeds on both sides of the crops, multiple paddy field inter-row weeding wheels are set, and multiple paddy field inter-row weeding wheels are arranged in an array to form a weeding assembly. At least two weeding assemblies are set, and every two weeding assemblies are used to weed a row of crops, that is, to weed both sides of the crops at the same time, which is beneficial to improve the weeding efficiency and effect. Figure 8In FIG. 1 , R3 indicates the angle between the central axes of the connecting shafts 100 of the two paddy field inter-row weeding wheels.

[0075] Reference Figure 1 、 Figure 2 and Figure 8 As shown, every two weeding components form a weeding mechanism. The weeding device can be provided with multiple weeding mechanisms according to the number of rows of crops in the paddy field. The number of weeding mechanisms is matched with the number of rows of crops, so as to achieve simultaneous weeding of multiple rows of crops, which is beneficial to improving weeding efficiency and weeding effect.

[0076] Reference Figure 1 、 Figure 2 and Figure 8 As shown, during weeding operations, the paddy field inter-row weeding wheel moves forward with the traveling frame 400, the blade teeth 300 come into contact with the soil, and rotate as the traveling frame 400 moves. The spiral tooth edges of the blade teeth 300 cut the weeds on the ground, and the weeds and soil are continuously pushed upward and outward, and finally thrown out through the outer edge of the blade teeth 300, achieving the weeding effect.

[0077] Compared with existing weeding devices, the advantage of the paddy field inter-row weeding wheel is that its spiral structure can automatically adapt to the undulations of the soil, quickly and efficiently removing weeds without causing damage to the rice.

[0078] The embodiments of the present invention are described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made within the scope of knowledge possessed by ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. Paddy field inter-row weeding wheel, installed on the paddy field walking device, characterized in that: include: A connecting shaft (100), one end of which is rotatably connected to the paddy field traveling device; A gear wheel (200) is coaxially arranged with and fixedly connected to the other end of the connecting shaft (100); The blade tooth group comprises a plurality of blade teeth (300) arranged around the outer edge of the gear disc (200), the blade teeth (300) being fixedly connected to the gear disc (200), the blade teeth (300) being spiral-shaped, and the blade teeth (300) being configured to abut against paddy field soil.

2. The paddy field inter-row weeding wheel according to claim 1, characterized in that: The torsion angle of the blade teeth (300) is 44°.

3. The paddy field inter-row weeding wheel according to claim 1, characterized in that: The blade tooth (300) has a first end (310) and a second end (320), the first end (310) is connected to the gear plate (200), and an extension line of the first end (310) toward the second end (320) is arranged at an angle to the central axis of the gear plate (200).

4. The paddy field inter-row weeding wheel according to claim 3, characterized in that: The included angle between the extension line of the first end (310) toward the second end (320) and the central axis of the gear wheel (200) is 22°.

5. The paddy field inter-row weeding wheel according to claim 1, characterized in that: One end of the knife tooth (300) is connected to the gear disc (200), and the other end of the knife tooth (300) extends in a direction away from the gear disc (200).

6. The paddy field inter-row weeding wheel according to claim 5, characterized in that: The width of the blade teeth (300) gradually increases in a direction away from the gear disc (200).

7. The paddy field inter-row weeding wheel according to claim 1, characterized in that: The tooth (300) has a tooth length of 90 mm, a tooth width of 40 mm, and a tooth thickness of 10 mm; and / or, The blade tooth group includes 8 blade teeth (300).

8. The paddy field inter-row weeding wheel according to claim 1, characterized in that: The gear disc (200) has a diameter of 120 mm and a thickness of 15 to 20 mm.

9. A weeding device, characterized in that: include: A walking frame (400) configured to be able to travel on a paddy field; According to the paddy field inter-row weeding wheel according to any one of claims 1 to 8, the connecting shaft (100) is rotatably connected to the traveling frame (400), and the connecting shaft (100) is arranged at an angle to the vertical direction.

10. The weeding device according to claim 9, characterized in that: The weeding device further comprises a sliding frame (500) and a compression elastic member, wherein the connecting shaft (100) is rotatably connected to the sliding frame (500), the sliding frame (500) is slidably connected to the traveling frame (400) in an up-down direction, and the two ends of the compression elastic member are respectively connected to the sliding frame (500) and the traveling frame (400) to drive the sliding frame (500) to move downward; and / or, A plurality of paddy field inter-row weeding wheels are provided, and the plurality of paddy field inter-row weeding wheels are arranged in an array to form a weeding assembly. At least two weeding assemblies are provided, and every two weeding assemblies are used for weeding a row of crops.

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