A field weeding device

Abstract

The utility model relates to the technical field of agricultural machinery, and discloses a field weeding device, including a tractor and a weeding mechanism connected to the rear of the tractor, the weeding mechanism including a weeding assembly, a collecting cage and a mounting frame; the mounting frame includes a bearing frame connected to the tractor, two connecting rods movably mounted on the bearing frame, and rollers rotatably mounted on both sides of the bearing frame; the weeding assembly includes a bearing column rotatably connected to the connecting rod and a plurality of rows of barbed thorns equidistantly mounted on the bearing column, each row is formed by a plurality of barbed thorns arranged in an annular array, the collecting cage is fixedly mounted on the inner side of the two connecting rods, and a plurality of clearance grooves for the barbed thorns to pass through are formed on a side wall of the collecting cage close to the weeding assembly. The purpose is to solve the problem that the weeds will continue to stay in the field during weeding with the existing weeding device, and the weeds may take root again, resulting in poor weeding effect.

Description

Technical Field

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

[0002] Field crops usually include corn, wheat, sorghum, etc. Before planting, the fields usually need to be prepared and weeded. Existing weeding devices usually use a shovel to remove weeds or spray pesticides to remove weeds.

[0003] For example, the patent with application number CN202220638642.4 discloses a straw return to field weeding equipment. It includes a power device and a frame, the rear end of the frame is provided with a lifting lug, the frame is installed on the power device through the lifting lug, and the frame is also connected to the power device through a hydraulic push rod; the front end of the frame is provided with a walking wheel, the walking wheel is installed on the frame through a wheel bracket, the rear side of the walking wheel is provided with a scraper tooth acting on the walking wheel, the scraper tooth is installed on the wheel bracket, and the rear end of the scraper tooth is provided with a grass shoveling device and a rotary device in sequence. This technology combines multiple functions such as weeding, spraying, and rotary, effectively improving the quality and effect of the operation. However, there are still certain defects in this technical solution. In this technical solution, after spraying the pesticide, the weeds are broken up by a rotary roller and then buried in the soil. However, at this time, the weeds are mixed with pesticides and will enter the soil, causing certain pollution to the soil and reducing soil fertility. In addition, some grass seeds are also mixed in the weeds. When these grass seeds enter the soil, they may take root again, resulting in poor weed control effect.

[0004] In view of this, the inventor conducted in-depth research on the above-mentioned defects in the prior art, and thus came up with this case. Utility Model Content

[0005] The utility model aims to provide a field weeding device to solve the problem that the weeds will continue to stay in the field during weeding by the existing weeding device, and the weeds may take root again, resulting in poor weeding effect.

[0006] In order to achieve the above technical purpose, the technical solution adopted by the utility model is as follows:

[0007] A field weeding device comprises a tractor and a weeding mechanism connected to the rear of the tractor, wherein the weeding mechanism comprises a weeding assembly, a collecting cage and a mounting frame; the mounting frame comprises a bearing frame connected to the tractor, two connecting rods movably mounted on the bearing frame, and rollers rotatably mounted on both sides of the bearing frame; the weeding assembly comprises a bearing column rotatably connected to the connecting rod and a plurality of rows of barbed thorns equidistantly mounted on the bearing column, each row being formed by a plurality of the barbed thorns arranged in an annular array; the collecting cage is fixedly mounted on the inner sides of the two connecting rods, and a plurality of clearance grooves for the barbed thorns to pass through are formed on a side wall of the collecting cage close to the weeding assembly.

[0008] Furthermore, one end of the connecting rod away from the weeding assembly is rotatably connected to the carrier, and a cylinder for driving the connecting rod to swing up and down is also provided on the carrier, the cylinder body of the cylinder is rotatably connected to the carrier, and the piston rod of the cylinder is rotatably connected to the connecting rod. The cylinder drives the connecting rod to swing up and down, so that the weeding assembly installed on the connecting rod can move up and down.

[0009] Furthermore, the weeding mechanism also includes a protective cover covering the weeding assembly, the protective cover is arc-shaped, the lower end surface of the protective cover opening can contact the field soil, and the upper end surface of the protective cover opening is located above the give way groove; the two side ends of the protective cover form a connecting plate connected to the connecting rod; and a plurality of first filter holes are formed on the cover surface of the protective cover. When the barbs hook the weeds out of the soil, the protective cover can prevent the weeds from being thrown out, so that they are smoothly transferred to the collection cage.

[0010] Furthermore, a plurality of hooks arranged at equal intervals are formed on the lower end surface of the shield opening, so that weeds partially left on the soil can be further hooked away by the hooks.

[0011] Furthermore, a plurality of second filtering holes are formed on the collecting cage. When the weeds are hooked into the collecting cage, the dirt on the weeds can be shaken out through the second filtering holes.

[0012] Furthermore, the barb is movably mounted on the bearing column, a mounting block for mounting the barb is formed on the bearing column, a connecting hole is formed on the mounting block, a connecting shaft rotatably connected to the connecting hole is formed on the barb, and a torsion spring is further provided between the connecting shaft and the connecting hole. Since there may be some stones in the soil, when the barb touches the stone in the soil, the barb will automatically rotate backward to avoid the stone, and after avoiding the stone, it can automatically reset under the action of the torsion spring, so as to avoid the barb directly coming into hard contact with the stone and causing damage to the barb.

[0013] After adopting the above structure, the utility model relates to a field weeding device. Compared with the prior art, a plurality of barbs are installed on the bearing column in this case. After the barbs come into contact with the soil, the barbs force the bearing column to rotate under the drive of the tractor moving forward, so that the barbs are inserted into the soil, and the weeds are hooked out together with the rhizomes during rotation, and are brought to the collection cage under the action of inertia. At this time, the barbs pass through the give way groove, and the weeds are scraped off by the collection cage and fall into the collection cage, so that the pulled out weeds can be prevented from remaining on the soil surface, effectively preventing them from taking root and sprouting again, and effectively improving the weeding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention can be further described by the non-limiting embodiments given in the accompanying drawings;

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the weeding mechanism of the utility model;

[0017] Figure 3 for Figure 2 Schematic cross-sectional view of ;

[0018] Figure 4 This is a schematic diagram of the structure of the weeding assembly of the utility model;

[0019] Figure 5 for Figure 4 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 6 A schematic diagram of the barb used in the utility model to hook weeds;

[0021] Figure 7 The schematic diagram of the structure of the novel collecting cage used in this invention is shown;

[0022] Figure 8 It is a structural schematic diagram of the protective cover in the utility model.

[0023] The symbols of the main components are described as follows: tractor 1, weeding assembly 2, load-bearing column 21, mounting block 211, connecting hole 212, barb 22, connecting shaft 221, collecting cage 3, give way groove 31, second filter hole 32, mounting frame 4, load-bearing frame 41, connecting rod 42, roller 43, cylinder 5, protective cover 6, connecting plate 61, first filter hole 62, hook 63. DETAILED DESCRIPTION

[0024] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that in the drawings or in the specification, similar or identical parts use the same figure numbers, and the implementation methods not shown or described in the drawings are forms known to ordinary technicians in the relevant technical field. In addition, the directional terms mentioned in the embodiments, such as "upper", "lower", "top", "bottom", "left", "right", "front", "back", etc., are only referenced to the directions of the drawings and are not used to limit the scope of protection of the present invention.

[0025] like Figures 1 to 8 As shown, a field weeding device involved in the utility model comprises a tractor 1 and a weeding mechanism connected to the rear of the tractor 1, and the weeding mechanism is driven to move by the tractor 1; the weeding mechanism comprises a weeding assembly 2, a collecting cage 3 and a mounting frame 4; the mounting frame 4 comprises a carrier frame 41 connected to the tractor 1, two connecting rods 42 movably mounted on the carrier frame 41, and rollers 43 rotatably mounted on both sides of the carrier frame 41; the main body of the carrier frame 41 is a rectangular frame, and a connecting frame is provided on the front end surface of the carrier frame 41, and the connecting frame is connected to the tractor 1 through a pin shaft; the weeding assembly 2 comprises A bearing column 21 rotatably connected to a connecting rod 42 and a plurality of rows of barbed thorns 22 equidistantly mounted on the bearing column 21, each row being formed by a plurality of barbed thorns 22 arranged in a circular array, a collecting cage 3 being fixedly mounted on the inner sides of the two connecting rods 42, a plurality of clearance grooves 31 for the barbed thorns 22 to pass through are formed on a side wall of the collecting cage 3 close to the weeding component 2, in this embodiment, the bearing column 21 is a cylinder, and there are ten barbed thorns 22 in each row, and the ten barbed thorns 22 are arranged in a circular array along the axis of the bearing column 21, and the bending direction of the barbed thorns 22 is the same as the rotation direction of the bearing column 21, such as Figure 6 As shown, when moving to the left, the barb 22 rotates counterclockwise, and after the barb 22 enters the soil, it hooks the rhizomes of the weeds and brings them out of the soil during the continuous rotation. Under the action of inertia, the rhizomes of the weeds will be hung on the barb 22 until the barb 22 passes through the yield groove 31 and is scraped by the collecting cage 3 and retained in the collecting cage 3. In addition, the collecting cage 3 is V-shaped and is fixed to the inner side of the connecting column by welding. Baffles are also provided on both side ends of the collecting cage 3. When a certain amount of weeds are stored in the collecting cage 3, the weeds can be directly fished out from above the supporting frame 41 for centralized treatment.

[0026] Preferably, one end of the connecting rod 42 away from the weeding assembly 2 is rotatably connected to the carrier 41, and a cylinder 5 for driving the connecting rod 42 to swing up and down is also provided on the carrier 41. The cylinder body of the cylinder 5 is rotatably connected to the carrier 41, and the piston rod of the cylinder 5 is rotatably connected to the connecting rod 42. The connecting rod 42 is driven to swing up and down by the cylinder 5, so that the weeding assembly 2 installed on the connecting rod 42 can move up and down. For example, when weeding is required, the connecting rod 42 is driven to swing downward by the cylinder 5 so that the barb 22 can be inserted into the soil. When weeding is not required, the connecting rod 42 can be driven to swing upward by the cylinder 5 so that the barb 22 is not on the ground. In this way, when walking, the barb 22 will not touch the road surface.

[0027] Preferably, the weeding mechanism further comprises a protective cover 6 covering the weeding assembly 2, the protective cover 6 is arc-shaped, the lower end surface of the cover opening of the protective cover 6 can contact the field soil, and the upper end surface of the cover opening of the protective cover 6 is located above the clearance groove 31; the two side ends of the protective cover 6 form a connecting plate 61 connected to the connecting rod 42; and a plurality of first filter holes 62 are formed on the cover surface of the protective cover 6. The inner diameter of the protective cover 6 is slightly larger than the maximum rotation path of the barb 22. When the barb 22 hooks the weeds out of the soil, the weeds can be prevented from being thrown out under the action of the protective cover 6, so that they are smoothly transferred to the collection cage 3.

[0028] Preferably, a plurality of hooks 63 arranged at equal intervals are formed on the lower end surface of the cover opening of the protective cover 6. During weeding, some weeds are directly scattered on the ground after being hooked up, and are not collected in the collection cage 3. The hooks 63 can further hook away some weeds left on the soil, so as to avoid weeds being stranded in the field as much as possible.

[0029] Preferably, a plurality of second filtering holes 32 are formed on the collecting cage 3. When the weeds are hooked into the collecting cage 3, the soil on the weeds can be shaken out through the second filtering holes 32.

[0030] Preferably, the barb 22 is movably mounted on the bearing column 21, a mounting block 211 for mounting the barb 22 is formed on the bearing column 21, a connecting hole 212 is formed on the mounting block 211, a connecting shaft 221 rotatably connected to the connecting hole 212 is formed on the barb 22, and a torsion spring is further provided between the connecting shaft 221 and the connecting hole 212. Since there may be some stones in the soil, when the barb 22 touches the stones in the soil, the barb 22 will automatically rotate backwards to avoid the stones, and after avoiding the stones, it can automatically reset under the action of the torsion spring, so as to avoid the barb 22 from directly and hard contacting with the stones, causing damage to the barb 22.

[0031] The method of using the utility model is as follows: first, the cylinder 5 is used to drive the connecting column to swing downward so that the barb 22 can be inserted into the soil. When the tractor 1 moves forward, the barb 22 will drive the bearing column 21 to rotate. During the rotation, the barb 22 will be inserted into the soil and hook the roots of the weeds. When the rotation continues, the weeds will be hooked out. Under the action of inertia and with the assistance of the protective cover 6, the weeds will rotate with the barb 22 until the barb 22 passes through the yield groove 31 and is scraped off by the collection cage 3 and enters the collection cage 3.

[0032] The above is a detailed introduction to a field weeding device provided by the utility model. The description of the specific embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A field weeding device, comprising a tractor (1) and a weeding mechanism connected to the rear of the tractor (1), characterized in that: The weeding mechanism comprises a weeding component (2), a collecting cage (3) and a mounting frame (4); the mounting frame (4) comprises a bearing frame (41) connected to a tractor (1), two connecting rods (42) movably mounted on the bearing frame (41), and rollers (43) rotatably mounted on both sides of the bearing frame (41); the weeding component (2) comprises a bearing column (21) rotatably connected to the connecting rod (42) and a plurality of rows of barbed thorns (22) equidistantly mounted on the bearing column (21), each row being formed by a plurality of barbed thorns arranged in an annular array; the collecting cage (3) is fixedly mounted on the inner sides of the two connecting rods (42); a plurality of clearance grooves (31) for the barbed thorns (22) to pass through are formed on a side wall of the collecting cage (3) close to the weeding component (2).

2. A field weeding device according to claim 1, characterized in that: One end of the connecting rod (42) away from the weeding assembly (2) is rotatably connected to the supporting frame (41), and a cylinder (5) for driving the connecting rod (42) to swing up and down is also provided on the supporting frame (41), the cylinder body of the cylinder (5) is rotatably connected to the supporting frame (41), and the piston rod of the cylinder (5) is rotatably connected to the connecting rod (42).

3. A field weeding device according to claim 2, characterized in that: The weeding mechanism further comprises a protective cover (6) covering the weeding assembly (2); the protective cover (6) is arc-shaped; the lower end surface of the cover opening of the protective cover (6) can contact field soil; the upper end surface of the cover opening of the protective cover (6) is located above the clearance groove (31); both side ends of the protective cover (6) form connecting plates (61) connected to the connecting rod (42); and a plurality of first filtering holes (62) are formed on the cover surface of the protective cover (6).

4. A field weeding device according to claim 3, characterized in that: A plurality of hook claws (63) arranged at equal intervals are formed on the lower end surface of the cover opening of the protective cover (6).

5. A field weeding device according to claim 1, characterized in that: A plurality of second filtering holes (32) are also formed on the collecting cage (3).

6. A field weeding device according to claim 1, characterized in that: The barbed thorn (22) is movably mounted on the bearing column (21); a mounting block (211) for mounting the barbed thorn (22) is formed on the bearing column (21); a connecting hole (212) is formed on the mounting block (211); a connecting shaft (221) rotatably connected to the connecting hole (212) is formed on the barbed thorn (22); a torsion spring is further provided between the connecting shaft (221) and the connecting hole (212).

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