Inter-row mechanical weeding device and weeding machine suitable for composite planting

Abstract

The present invention relates to an inter-row mechanical weeding device and a weeder suitable for composite planting, comprising a weeding assembly and a frame component, wherein the weeding assembly comprises a weeding and shoveling component, a main weed chopping component, an auxiliary weed chopping component and a transmission component; the weeding and shoveling component comprises a weeding and shoveling blade, a left fixed mounting plate, a right fixed mounting plate and a rotating ring; the main weed chopping component is arranged between the left and right fixed mounting plates, and comprises a weed chopping main shaft; the auxiliary weed chopping component is arranged between the left and right fixed mounting plates, and comprises a weed chopping bucket and a weed chopping blade shaft; the transmission component comprises an internal meshing gear, a small gear and a large gear; the frame component comprises a frame and a contour wheel assembly; weeding devices of different row spacing modules are mounted on the frame and then connected to a tractor to form a weeder, which can effectively remove weeds in different row spacings in a composite planting area, greatly improving the efficiency and quality of weeding.

Description

Technical Field

[0001] The present invention relates to agricultural machinery, in particular to a weeder, and more specifically to an inter-row mechanical weeding device and a weeder suitable for composite planting. Background Art

[0002] Soybean-corn strip intercropping technology fully leverages the nitrogen fixation and marginal effects of root nodules, ensuring maximum effectiveness, efficiency, and profitability in grain and oilseed production. It is a key tool in my country to alleviate land competition for grain and oilseed crops and ensure their supply. Soybean-corn strip intercropping, characterized by distinct strips, staggered heights, rich nutrients, and varying pesticide sensitivity, can lead to more severe weed infestations than monoculture.

[0003] In actual production, spraying herbicides is generally used to eliminate stubble and weeds before or after sowing corn and soybean seedlings. However, chemical weeding can easily cause environmental pollution and food safety issues. Mechanical weeding is a green and efficient weeding method, but current weeding machines are designed for a single variety (single row spacing) and cannot meet the weeding requirements of the soybean-corn strip composite planting model. The main reasons are that the common shovel and knife weeding structures (1) have an unadjustable working width and are not suitable for the variable row spacing model of composite planting; (2) have a narrow working width and the weeding area cannot effectively cover a single row spacing; (3) only cut the stems of the weeds, and weeds that aggregate with the soil are easy to regenerate.

[0004] Therefore, it needs to be improved in order to better meet the needs of agricultural production. Summary of the Invention

[0005] The purpose of the present invention is to address the deficiencies in the existing technology and provide an inter-row mechanical weeding device and weeder suitable for composite planting. Through modular design, it can effectively adapt to the weeding needs of composite planting areas with different row spacings, thereby improving production efficiency.

[0006] The technical solution of the present invention is:

[0007] A mechanical weeding device between rows suitable for composite planting, comprising a weeding assembly and a frame component, wherein the weeding assembly comprises a weeding and shoveling component, a main weed-chopping component, an auxiliary weed-chopping component and a transmission component;

[0008] The weeding and shoveling component includes a weeding and shoveling blade, a left fixed mounting plate, a right fixed mounting plate, and a rotating ring; the left fixed mounting plate and the right fixed mounting plate are disc-shaped and of the same size, and are arranged parallel to each other and spaced apart, and the spacing thereof is adapted to the row spacing of the planting area; there are two rotating rings, which are movably sleeved on the left and right fixed mounting plates respectively; the weeding and shoveling blade is arranged between the left and right fixed mounting plates, and its two ends are respectively connected to the rotating ring; there are multiple weeding and shoveling blades, which are evenly spaced apart;

[0009] The main grass-chopping component is arranged between the left and right fixed mounting plates, and includes a grass-chopping main shaft; the grass-chopping main shaft is in the shape of a straight rod with adjustable length, and its two ends are movably mounted in main mounting holes arranged in the center of the left and right fixed mounting plates, and is provided with a plurality of evenly distributed grass-chopping blades;

[0010] The auxiliary grass-chopping component is arranged between the left and right fixed mounting plates, and includes a grass-chopping bucket and a grass-chopping blade shaft; the grass-chopping bucket is in the shape of a semi-cylindrical barrel in longitudinal section, with an open side plane, and its length is adapted to the distance between the left and right fixed mounting plates, with an annular mounting block provided at the center of each end; the grass-chopping blade shaft is in the shape of a straight rod with adjustable length, and is arranged in the grass-chopping bucket, with its two ends movably passing through the mounting blocks and then movably mounted in the auxiliary mounting holes provided on the left and right fixed mounting plates; the grass-chopping blade shaft is provided with a plurality of evenly distributed grass-chopping blades;

[0011] The transmission component includes an internal meshing gear, a small gear and a large gear; the size of the internal meshing gear is comparable to that of the rotating ring, and is connected to and concentric with the rotating ring on the right fixed mounting plate; the large gear is fixed to one end of the grass-chopping main shaft and is coplanar with the internal meshing gear; there are multiple small gears, which are evenly distributed between the large gear and the internal meshing gear, and are meshed with the large gear and the internal meshing gear at the same time; one of the small gears is fixed to one end of the grass-chopping blade shaft, and the other small gears are movably mounted in the gear mounting holes provided on the right fixed mounting plate through gear rotating shafts;

[0012] The frame component includes a frame; the frame is a rectangular frame with connection holes on both side frames; the weeding assembly is arranged in the frame; the two ends of the grass-chopping main shaft are movably installed in the connection holes; and the front end of the frame is provided with a contoured wheel assembly.

[0013] Furthermore, the rotating ring is connected to the left fixed mounting plate or the right fixed mounting plate through a large bearing.

[0014] Furthermore, the weeding blade includes a mounting handle and a blade assembly; the mounting handle is in the shape of a straight rod, and its length is adapted to the distance between the left and right fixed mounting plates; the blade assembly is spliced ​​by a left blade module and a right blade module, or is spliced ​​by a left blade module, a middle blade module and a right blade module; the bottom edge of the blade assembly is connected to the mounting handle, and its top edge is provided with a raised sharp edge; the blade assembly is provided with a plurality of through holes.

[0015] Furthermore, the grass chopping main shaft is formed by splicing the left section of the main shaft and the right section of the main shaft, or by splicing the left section of the main shaft, the middle section of the main shaft and the right section of the main shaft; the large grass chopping knife is a "7"-shaped folding plate, the lower end of which is fixed on the grass chopping main shaft, and the upper end is suspended, and is staggered in a spiral along the circumference of the grass chopping main shaft.

[0016] Furthermore, the grass chopping blade shaft is formed by splicing the left section of the blade shaft and the right section of the blade shaft, or by splicing the left section of the blade shaft, the middle section of the blade shaft and the right section of the blade shaft; the small grass chopping blade is a "7"-shaped folding plate, the lower end of which is fixed on the grass chopping blade shaft, and the upper end is suspended, and is staggered in a spiral along the circumference of the grass chopping blade shaft, and can rotate in the grass chopping barrel.

[0017] Furthermore, bearings are installed in the main mounting hole, the auxiliary mounting hole, the gear mounting hole and the mounting block.

[0018] Furthermore, there are three small gears; the gear mounting holes and the auxiliary mounting holes correspond to the positions of the small gears; and the side of the large gear is provided with a sprocket I connected thereto and concentric therewith.

[0019] Furthermore, machine covers are provided on both sides of the frame; the machine covers can cover the transmission components; and a reinforcing cross bar connected to the front of the frame is provided.

[0020] Furthermore, the contoured wheel assembly includes a contoured frame and a running wheel; the contoured frame is a vertical quadrilateral with four hinged corners, and a spring is provided between the top and bottom edges; the running wheel is in the shape of a wheel, and its axle is connected to the bottom edge of the contoured frame through a support rod and a connecting block.

[0021] A weeder suitable for composite planting, comprising a frame and a weeding device; the frame is a rectangular frame, the horizontal length of which is adapted to the composite planting area, the rear end of which is connected to the front end of the frame of the weeding device, and the front end of which is connected to a tractor; there are two or more weeding devices, which are arranged side by side; the width of each weeding device is adapted to the width between rows in the composite planting area; it also includes a sprocket shaft; the sprocket shaft is movably mounted on the upper end of a column; the lower end of the column is fixed to the frame; a sprocket II and a sprocket III are provided on the sprocket shaft; the sprocket II is connected to the sprocket I through a chain; the sprocket III is connected to a sprocket IV provided on the output shaft of a reducer through a chain; the input shaft of the reducer is connected to the engine of the tractor.

[0022] Beneficial effects of the present invention:

[0023] (1) The weeding blade, main grass-chopping components, and grass-chopping blade shaft modules all adopt a modular design. They can adapt to different row spacing requirements for corn and soybean composite planting patterns by simply changing the number of modules, effectively improving the weeding efficiency in composite planting areas.

[0024] (2) Pure mechanical weed control design, which can be applied to the weed control requirements of organic variety planting;

[0025] (3) The weeds are cut off at their roots by the weeding blade and the weeds are shoveled up with the roots, and then the main and auxiliary weed-crushing parts are used to break the weeds, thereby enhancing the weed damage effect;

[0026] (4) The weeding blade is equipped with a raised sharp edge, which can quickly cut the soil and prevent the soil from being cut by tearing, which can effectively protect the roots of corn and soybeans. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a structural schematic diagram of the large row spacing module weeding device of the present invention.

[0028] Figure 2 It is a structural schematic diagram of the weeding removal component in the large row spacing module of the present invention.

[0029] Figure 3 It is a structural schematic diagram of the main grass-chopping components in the large row spacing module of the present invention.

[0030] Figure 4 It is a structural schematic diagram of the auxiliary grass-chopping component in the large row spacing module of the present invention.

[0031] Figure 5 It is a structural schematic diagram of the transmission components in the large line spacing module of the present invention.

[0032] Figure 6 It is a structural schematic diagram of the rack components in the large line spacing module of the present invention.

[0033] Figure 7 It is a structural schematic diagram of the contour wheel assembly in the present invention.

[0034] Figure 8 It is a structural schematic diagram of the small row spacing module weeding device of the present invention.

[0035] Figure 9 It is a structural schematic diagram of the weeding removal component in the small row spacing module of the present invention.

[0036] Figure 10 It is a structural schematic diagram of the main grass-chopping components in the small row spacing module of the present invention.

[0037] Figure 11 It is a structural schematic diagram of the auxiliary grass-chopping component in the small row spacing module of the present invention.

[0038] Figure 12 It is a structural schematic diagram of the rack components in the small line spacing module of the present invention.

[0039] Figure 13 A schematic structural diagram of a weeder according to the present invention.

[0040] Among them, 1-frame component; 2-main grass-chopping component; 3-grazing blade component; 4-transmission component; 5-auxiliary grass-chopping component; 6-contact wheel assembly; 101-frame; 102-reinforcement crossbar; 103-connecting hole; 104-machine cover; 201-left section of the main shaft; 202-middle section of the main shaft; 203-right section of the main shaft; 204-pin shaft; 205-large grass-chopping blade; 301-left fixed mounting plate; 302-mounting handle; 303-small hole; 304-left blade module; 305-middle blade module; 306-right blade module; 307-large bearing; 308-rotating ring; 309-right fixed mounting plate; 310-gear mounting hole; 311-main mounting hole; 312-auxiliary mounting hole; 401-large gear; 402-internal gear; 403-small gear; 501-grass cutting bucket; 502-left section of the blade shaft; 503-middle section of the blade shaft; 504-small grass cutting blade; 505-right section of the blade shaft; 506-mounting block; 601-profile frame; 602-connecting block; 603-traveling wheel; 604-spring; 605-support rod; 606-axle; 701-sprocket I; 702-sprocket II; 703-sprocket III; 704-sprocket IV; 705-sprocket shaft; 706-chain; 8-frame; 9-column; 10-output shaft; 11-input shaft; 12-reducer. Implementation Method

[0041] The present invention will be further described below with reference to the accompanying drawings and embodiments. The expressions "left", "right", "front", "back", "upper", "lower" and the like in the text are for the purpose of describing the technical solution and are not intended to limit the technical solution.

[0042] The invention discloses an inter-row mechanical weeding device suitable for composite planting, comprising a large row spacing module and a small row spacing module.

[0043] like Figures 1 to 7 As shown, a large row spacing module of an inter-row mechanical weeding device suitable for composite planting includes a weeding component and a frame component 1.

[0044] The weeding assembly includes a weeding and shoveling component 3, a main grass-chopping component 2, an auxiliary grass-chopping component 5 and a transmission component 4.

[0045] The weeding and scraping components include a weeding blade, a left fixed mounting plate 301, a right fixed mounting plate 309, and a rotating ring 308. The left and right fixed mounting plates 301 and 309 are disc-shaped and of equal size, spaced parallel to each other and spaced apart to align with the row spacing in the planting area. Two rotating rings 308 are mounted on the left and right fixed mounting plates via large bearings 307, allowing for relative rotation therewith.

[0046] The weeding blade is arranged between the left and right fixed mounting plates, and includes a mounting handle 302 and a blade assembly.

[0047] The mounting handle 302 is in the shape of a straight rod, the length of which is adapted to the distance between the left and right fixed mounting plates, and its two ends are connected to the rotating ring 308. The blade assembly is composed of a left blade module 304, a middle blade module 305 and a right blade module 306, so as to adapt to large row spacing. The end faces of each blade module are concave and convex, which facilitates accurate positioning during splicing. The bottom edge of the blade assembly is connected to the mounting handle 302 by bolts, and its top edge is provided with a raised sharp edge, which can effectively prevent the root-soil complex from falling from the cutting edge during the weeding process. The blade assembly is provided with a plurality of through holes 303, which can reduce the resistance of the soil when cutting the roots of weeds, and also allow the broken soil to fall directly to reduce the load.

[0048] There are ten weed-removing blades, evenly spaced. They are also tilted to facilitate insertion into the soil. During operation, the weed-removing blades roll with the rotation of the rotating ring, plunging into the soil to a certain depth and rotating, cutting weed roots from back to front. The resulting weed-root-soil complex is lifted off the ground and, after reaching a certain height, is dropped onto the primary and auxiliary weed-chopping components.

[0049] The main grass-chopping component 2 is arranged between the left and right fixed mounting plates, and includes a grass-chopping main shaft and a large grass-chopping blade 205 .

[0050] The grass-chopping main shaft is a straight rod, composed of a left section 201, a middle section 202, and a right section 203, to accommodate wide-row weeding. The end surfaces of the left and middle sections 201 and 202, as well as the end surfaces of the middle and right sections 202 and 203, are each provided with a corresponding recessed hole and protrusion. These recessed holes and protrusions are of the same shape, such as a square, to facilitate docking. Furthermore, each recessed hole and protrusion are provided with a through-pin hole, which allows a pin 204 to be inserted into the hole to securely connect the two.

[0051] The large grass-chopping blades 205 are folded plates in the shape of a figure 7, with their lower ends fixed to the grass-chopping main shaft and their upper ends suspended in the air. Ten of the large grass-chopping blades 205 are arranged in a double helix along the circumference of the grass-chopping main shaft, and can chop the root-soil complex that has been lifted off the ground as the grass-chopping main shaft rotates.

[0052] Both ends of the grass-chopping main shaft are movably mounted in main mounting holes 311 provided in the center of the left and right fixed mounting plates, and bearings are provided in the main mounting holes 311 to enable the grass-chopping main shaft to rotate flexibly.

[0053] The auxiliary grass-chopping component 5 is arranged between the left and right fixed mounting plates, and includes a grass-chopping barrel 501 , a grass-chopping blade shaft, a small grass-chopping blade 504 , and the like.

[0054] The grass-chopping barrel 501 is in the shape of a longitudinally sectioned semi-cylindrical barrel with an open side plane. Its length is adapted to the distance between the left and right fixed mounting plates, and an annular mounting block 506 is provided at the center of each of its two ends.

[0055] The grass-chopping blade shaft is a straight rod, which is composed of a blade shaft left section 502, a blade shaft middle section 503 and a blade shaft right section 505, so as to adapt to large row spacing weeding. The splicing method of the grass-chopping blade shaft is the same as the splicing method of the grass-chopping main shaft.

[0056] The shredder shaft is mounted within the shredder bucket 501. Its ends flexibly pass through the mounting blocks 506 and are then flexibly mounted within auxiliary mounting holes 312 provided on the left and right fixed mounting plates. This allows the shredder shaft to rotate along the auxiliary mounting holes without the shredder bucket rotating with it. Bearings are provided within the mounting blocks 506 and auxiliary mounting holes 312 to facilitate flexible rotation.

[0057] The small grass-chopping blades 504 are essentially the same shape as the large grass-chopping blades 205. Their lower ends are fixed to the grass-chopping blade shaft, while their upper ends are suspended. Multiple small grass-chopping blades 504 are evenly staggered in a spiral pattern along the circumference of the grass-chopping blade shaft. The height of these small grass-chopping blades 504 is adapted to the inner diameter of the grass-chopping barrel 501, allowing them to rotate with the grass-chopping blade shaft within the barrel, further shredding the root-soil complex removed from the ground.

[0058] The auxiliary grass-chopping component 5 is installed in front of the main grass-chopping component 2, and the rotation directions of the grass-chopping main shaft and the grass-chopping blade shaft are opposite, so as to further improve the efficiency of grass-chopping.

[0059] The transmission component 4 includes an internal gear 402 , a small gear 403 and a large gear 401 .

[0060] The internal gear 402 is of a size comparable to the rotating ring 308 , and is connected to and concentric with the rotating ring 308 on the right fixed mounting plate 3 , so that the two rotate synchronously.

[0061] The large gear 401 is fixed to the end of the main shaft right section 203 so as to drive the grass cutting main shaft to rotate. The large gear 401 is also connected to the sprocket 1701 and the two are concentric.

[0062] There are three pinion gears 403, coplanar with the large gear 401 and the internal gear 402, and evenly distributed between them. They mesh with both gears, driving the rotation of the internal gears 402 via the pinion gears 403. One of the pinion gears is fixed to the end of the right blade shaft section 505 to drive the grass cutting blade shaft. The other pinion gears are movably mounted via gear shafts in gear mounting holes 310 provided on the right fixed mounting plate 309. These gear mounting holes 310 are equipped with bearings to ensure flexible rotation.

[0063] The frame assembly 1 includes a frame 101. Frame 101 is a rectangular frame with connecting holes 103 defined on its two side edges. The weeding assembly is mounted within this frame 101, with the ends of the grass-chopping shaft movably mounted within these connecting holes 103, forming a drum-like structure. Bearings are also located within these connecting holes 103, allowing for more flexible rotation of the grass-chopping shaft.

[0064] The front end of the frame 101 is provided with a contoured wheel assembly 6. The contoured wheel assembly 6 comprises a contoured frame 601 and running wheels 603. The contoured frame 601 is a vertical quadrilateral with four hinged corners. A spring 604 is provided between the top and bottom edges of the contoured frame 601, allowing the top and bottom edges to move closer together when subjected to external pressure. Once the external force is removed, the springs return the top and bottom edges to their original position. The running wheels 603 are wheel-shaped, with their axles 606 connected to the bottom edge of the contoured frame 601 via support rods 605 and connecting blocks 602. When the running wheels traverse uneven terrain, the contoured frame helps maintain stability, ensuring that the weeding blades penetrate the soil to a consistent depth.

[0065] A cover 104 is provided on each side of the frame 101. These covers 104 cover the transmission components 4, preventing them from being affected by debris. A reinforcing crossbar 102 is connected to the front of the frame 101. This crossbar 102 is shaped like a door, its length roughly matching the width of the frame 101. It is located above the frame 101 and connected to the frame 101 at both ends, enhancing its structural strength.

[0066] like Figures 8 to 12 As shown, a small row spacing module for an inter-row mechanical weeding device suitable for composite planting has a structure that is basically the same as the large row spacing module, with the main differences being:

[0067] The blade assembly is composed of a left blade module and a right blade module; the length of the mounting handle is also shortened accordingly;

[0068] The grass-cutting main shaft is composed of a main shaft left section 7 and a main shaft right section 9;

[0069] The grass chopping blade shaft is formed by splicing a left blade shaft section and a right blade shaft section. At the same time, the length of the grass chopping barrel is shortened accordingly.

[0070] The splicing method of the grass-chopping main shaft and the splicing method of the grass-chopping blade shaft are the same as the splicing method in the large row spacing module. Through the above adjustment, the width of the weeding device can be adapted to the width of the small row spacing of the composite planting area.

[0071] like Figure 13 As shown, the present invention provides a weeder suitable for composite planting, comprising a frame 8 and the weeding device.

[0072] The frame 8 is a rectangular frame, the transverse length of which is adapted to the composite planting area, the rear end of which is connected to the front end of the frame 101 of the weeding device, and the front end of which is connected to the tractor so as to move under the drive of the tractor.

[0073] There are two or more weeding devices, which are arranged side by side. This embodiment is applied to the 4+2 pattern area of ​​corn and soybean composite planting, that is, one row of corn is planted on each side, and four rows of soybeans are planted in the middle, forming three types of inter-row spaces: corn inter-row space, corn and soybean inter-row space, and soybean inter-row space. Among them, the inter-row space between corn and soybean is small, and the inter-row space between corn and soybean is large. Accordingly, the present invention is provided with a total of 7 weeding devices, including 2 large-row spacing modules and 5 small-row spacing modules. Among them, 2 small-row spacing modules are located on the outermost two sides, and then inwardly there are 2 large-row spacing modules. The remaining 3 small-row spacing modules are in the middle.

[0074] Also comprise sprocket shaft 705. This sprocket shaft 705 is movably installed on the upper end of column 9. The lower end of this column 9 is fixed on described frame 8, and described sprocket shaft 705 is positioned above described frame 8.

[0075] The sprocket shaft 705 is provided with a sprocket II 702 and a sprocket III 703. The number and position of the sprocket II 702 correspond to the sprocket I 701, and the sprocket II 702 is connected to the sprocket I 701 via a chain 706. The sprocket III 703 is connected to the sprocket IV 704 on the output shaft 10 of the reducer 12 via a chain. The input shaft 11 of the reducer 12 is connected to the engine of the tractor.

[0076] The present invention operates as follows: driven by a tractor, the sprocket shaft rotates, which in turn drives the large gear via sprocket 1, causing the weeding assembly to operate. The weeding blades then sever the weeds between the rows, uprooting them and removing them from the soil. When the weeds reach a certain height, they fall away. The large weed-chopping blades on the main weed-chopping unit and the small weed-chopping blades on the auxiliary weed-chopping unit shred the rooted weeds, effectively preventing weed re-growth and reducing operational steps. Furthermore, by combining modules with different row spacings, the weeding requirements of different row spacings within a composite planting area can be fully met, significantly improving work efficiency.

[0077] The parts not involved in the present invention are the same as the existing technology or can be implemented by using the existing technology.

Claims

1. A mechanical weeding device between rows suitable for composite planting, comprising a weeding assembly and a frame component, characterized in that: The weeding assembly includes a weeding and shoveling component, a main grass-chopping component, an auxiliary grass-chopping component and a transmission component; The weeding and shoveling component includes a weeding and shoveling blade, a left fixed mounting plate, a right fixed mounting plate, and a rotating ring; the left fixed mounting plate and the right fixed mounting plate are disc-shaped and of the same size, and are arranged parallel to each other and spaced apart, and the spacing thereof is adapted to the row spacing of the planting area; there are two rotating rings, which are movably sleeved on the left and right fixed mounting plates respectively; the weeding and shoveling blade is arranged between the left and right fixed mounting plates, and its two ends are respectively connected to the rotating ring; there are multiple weeding and shoveling blades, which are evenly spaced apart; The weeding blade includes a mounting handle and a blade assembly; the mounting handle is in the shape of a straight rod, and its length is adapted to the distance between the left and right fixed mounting plates; the blade assembly is composed of a left blade module and a right blade module, or a left blade module, a middle blade module, and a right blade module; the bottom edge of the blade assembly is connected to the mounting handle, and the top edge thereof is provided with a raised sharp edge; The main grass-chopping component is arranged between the left and right fixed mounting plates, and includes a grass-chopping main shaft and a large grass-chopping blade. The grass-chopping main shaft is in the shape of a straight rod with adjustable length, and its two ends are movably mounted in the main mounting holes arranged in the center of the left and right fixed mounting plates. There are multiple large grass-chopping blades, which are evenly arranged along the circumference of the grass-chopping main shaft. The grass-chopping main shaft is formed by splicing the left and right sections of the main shaft, or by splicing the left, middle and right sections of the main shaft; the large grass-chopping blade is a "7"-shaped folded plate, the lower end of which is fixed to the grass-chopping main shaft, and the upper end of which is suspended, and is staggered in a spiral along the circumference of the grass-chopping main shaft; The auxiliary grass-chopping component is arranged between the left and right fixed mounting plates, and includes a grass-chopping bucket, a grass-chopping blade shaft and a small grass-chopping blade; the grass-chopping bucket is in the shape of a semi-cylindrical cylinder in longitudinal section, and its side plane is open, and its length is adapted to the distance between the left and right fixed mounting plates, and an annular mounting block is respectively provided at the center of its two ends; the grass-chopping blade shaft is in the shape of a straight rod with adjustable length, and is arranged in the grass-chopping bucket, and its two ends movably pass through the mounting blocks and then movably mounted in the auxiliary mounting holes provided on the left and right fixed mounting plates; there are multiple small grass-chopping blades, which are evenly mounted on the grass-chopping blade shaft; The grass-chopping blade shaft is formed by splicing a left section of the blade shaft and a right section of the blade shaft, or by splicing a left section of the blade shaft, a middle section of the blade shaft and a right section of the blade shaft; the small grass-chopping blade is a "7"-shaped folded plate, the lower end of which is fixed to the grass-chopping blade shaft, and the upper end of which is suspended, and is staggered in a spiral along the circumference of the grass-chopping blade shaft, and can rotate in the grass-chopping barrel; The transmission component includes an internal meshing gear, a small gear and a large gear; the size of the internal meshing gear is comparable to that of the rotating ring, and is connected to and concentric with the rotating ring on the right fixed mounting plate; the large gear is fixed to one end of the grass-chopping main shaft and is coplanar with the internal meshing gear; there are multiple small gears, which are evenly distributed between the large gear and the internal meshing gear, and are meshed with the large gear and the internal meshing gear at the same time; one of the small gears is fixed to one end of the grass-chopping blade shaft, and the other small gears are movably mounted in the gear mounting holes provided on the right fixed mounting plate through gear rotating shafts; The frame component includes a frame; the frame is a rectangular frame with connection holes on both sides; the weeding assembly is arranged in the frame; the two ends of the grass-chopping main shaft are movably mounted in the connection holes; the front end of the frame is provided with a contoured wheel assembly; The contour wheel assembly includes a contour frame and a running wheel; the contour frame is a vertical quadrilateral with four hinged corners, and a spring is provided between the top and bottom edges of the contour frame; the running wheel is in the shape of a wheel, and its axle is connected to the bottom edge of the contour frame through a support rod and a connecting block.

2. The inter-row mechanical weeding device suitable for composite planting according to claim 1 is characterized in that: The rotating ring is connected to the left fixed mounting plate or the right fixed mounting plate through a large bearing.

3. The inter-row mechanical weeding device suitable for composite planting according to claim 1 is characterized in that: The blade assembly is provided with a plurality of through holes.

4. The inter-row mechanical weeding device suitable for composite planting according to claim 1 is characterized in that: Bearings are installed in the main mounting hole, the auxiliary mounting hole, the gear mounting hole and the mounting block.

5. The inter-row mechanical weeding device suitable for composite planting according to claim 1 is characterized in that: There are three small gears; the gear mounting holes and the auxiliary mounting holes correspond to the positions of the small gears; and a sprocket I connected to and concentric with the large gear is provided on the side of the large gear.

6. The inter-row mechanical weeding device suitable for composite planting according to claim 1, characterized in that: Machine covers are provided on both sides of the frame; the machine covers can cover the transmission components; and a reinforcing cross bar connected to the front of the frame is provided.

7. A weeder suitable for composite planting, characterized by: It includes a frame and a weeding device as described in any one of claims 1 to 6; the frame is a rectangular frame, its lateral length is adapted to the composite planting area, its rear end is connected to the front end of the frame of the weeding device, and its front end is connected to the tractor; there are two or more weeding devices, which are arranged side by side; the width of each weeding device is adapted to the row width of the composite planting area; it also includes a sprocket shaft; the sprocket shaft is movably mounted on the upper end of the column; the lower end of the column is fixed on the frame; the sprocket shaft is provided with a sprocket II and a sprocket III; the sprocket II is connected to the sprocket I through a chain; the sprocket III is connected to the sprocket IV provided on the output shaft of the reducer through a chain; the input shaft of the reducer is connected to the engine of the tractor.

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