A soil trenching device for rapeseed planting

Abstract

This utility model relates to the field of agricultural implements, specifically a soil ditching device for rapeseed planting. It includes a frame, which is U-shaped overall. One side of the frame is fixedly connected to the sides of a support plate at both ends. The support plate has an H-shaped cross-section. Three sliders are slidably mounted on the support plate. A connecting plate is fixedly connected to the bottom of each slider. A ditching plate is fixedly connected to the lower end of the connecting plate. The ditching plate is V-shaped overall with a pointed lower end. A width adjustment mechanism is installed on the ditching plate. Two support wheels are fixedly installed on the bottom of the frame away from the support plate. This rapeseed planting soil ditching device allows for stepless adjustment of the ditch width. It can adapt to different soil types such as clay and loam without disassembling the ditching plate, and meets the different ditch width requirements from rapeseed seedling to mature plant stages, significantly improving the device's versatility and efficiency.

Description

Technical Field

[0001] This utility model relates to the field of agricultural implements technology, specifically a soil trenching device for rapeseed planting. Background Technology

[0002] As an important oilseed crop in my country, the ditching process is crucial in the planting of rapeseed. A well-designed ditch can facilitate field irrigation and drainage, reduce soil moisture to prevent waterlogging, and promote root aeration and development, directly affecting the germination rate, growth status, and final yield of rapeseed.

[0003] Currently, common plow-type ditching tools cannot adjust the ditch width according to soil type and rapeseed growth stage. For example, clay soil requires wider ditches to enhance drainage, while loam soil can have appropriately narrower ditches. During the rapeseed growth period and seedling stage, narrow ditches are needed to retain moisture, while wide ditches are needed for drainage during the mature stage. If the width needs to be changed, different specifications of plow heads or different sizes of plow-type ditching tools are required, which not only increases equipment costs but also interrupts the planting process and reduces efficiency. Furthermore, the ditching components of existing ditching devices are mostly fixed structures, which can only ditch according to preset spacing. However, in rapeseed planting, different varieties, different soil fertility, and different planting methods (such as direct seeding and transplanting) have significantly different requirements for row spacing. Fixed-spacing ditching components require replacement of the entire component or disassembly and reassembly to adjust, which is cumbersome and time-consuming, and cannot meet farmers' needs for flexible adaptation to planting density. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model discloses a soil trenching device for rapeseed planting. The technical solution adopted is as follows: the frame is U-shaped in general. The opposite side of one end of the frame is fixedly connected to the side of both ends of the support plate. The support plate has an H-shaped cross section. Three sliders are slidably installed on the support plate. A connecting plate is fixedly connected to the bottom of the sliders. A trenching plate is fixedly connected to the lower end of the connecting plate. The trenching plate is V-shaped in general with a pointed lower end. A width adjustment mechanism is installed on the trenching plate. Two support wheels are fixedly installed on the side of the bottom of the frame away from the support plate. A connecting hole for connecting a traction vehicle is opened on the top of the protruding part of the frame away from the support plate.

[0005] The width adjustment mechanism includes a movable cylinder, a lead screw, support rods, hinges, and extension plates. Two extension plates are provided, and the two extension plates are rotatably mounted on both sides of the grooved plate via two hinges. One end of the lead screw is rotatably connected to the side of the upper end of the grooved plate, and the other end of the lead screw passes through a thread hole on the end face of the movable cylinder. Two symmetrical ear plates on the side of the movable cylinder are rotatably connected to the side of one end of the two support rods, and the side of the other end of the two support rods is rotatably connected to the protruding parts at the side edges of the two extension plates.

[0006] As a preferred embodiment of this utility model, a fixing nut is fixedly installed on the top of the slider, and a through hole corresponding to the fixing nut is opened on the top of the slider. A positioning screw is internally threaded into the fixing nut, and a plurality of positioning holes are opened on the top of the support plate, the positioning holes cooperating with the positioning screw.

[0007] As a preferred embodiment of this utility model, guide wheels are fixedly installed on both sides of the top and bottom of the slider, and the four guide wheels are respectively located in the grooves at the top and bottom of the support plate.

[0008] As a preferred embodiment of this utility model, the ends of the lead screw and the positioning lead screw are respectively fixedly connected to the middle of the end faces of the two handwheels.

[0009] As a preferred embodiment of this utility model, the frame and support plate are made of carbon structural steel, and the connecting plate, trenching plate and extension plate are made of high manganese steel.

[0010] The beneficial effects of this utility model are as follows: 1. By rotating the handwheel at the end of the lead screw, the moving cylinder can be driven to move along the axial direction of the lead screw. This, in turn, pushes the extension plate to rotate around the hinge via the support rod. When the moving cylinder moves away from the trench plate, the extension plate unfolds, increasing the width; conversely, it retracts, decreasing the width. This structure achieves stepless adjustment of the trench width, adapting to different soils such as clay and loam, and different trench width requirements from rapeseed seedling to mature plant stages, without disassembling the trench plate. This significantly improves the versatility and efficiency of the device. Furthermore, the slider can slide freely along the groove of the support plate to adjust its position. Combined with the fixing nut at the top of the slider and the positioning screw with the positioning hole, the trench spacing can be fixed, allowing for arbitrary adjustment of the trench spacing without replacing any parts. This flexibly adapts to the needs of different rapeseed varieties and planting densities, making it especially suitable for small-scale farmers to dynamically adjust according to plot conditions.

[0011] 2. The guide wheels not only reduce sliding friction between the slider and the support plate, but also precisely limit the slider's sliding trajectory, preventing deviation and jamming, and ensuring uniform furrow spacing. The handwheel allows for manual adjustment without additional tools, making it particularly suitable for rapid adjustments in complex field environments, thus lowering the operational threshold.

[0012] 3. The frame and support plate are made of carbon structural steel, which has high strength and bending resistance and can withstand the impact of external forces during long-term traction operations, thus preventing frame deformation. The connecting plate, trenching plate and extension plate are made of high manganese steel, which has excellent wear resistance and impact resistance, can resist soil friction and gravel impact, is not easily damaged, and reduces farmers' maintenance and replacement costs. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0014] Figure 2 This is a schematic diagram of the overall side structure of this utility model;

[0015] Figure 3 This is a schematic diagram of the rear structure of the present invention;

[0016] Figure 4 This is a partially enlarged structural diagram of point A in this utility model;

[0017] Figure 5 This is a schematic diagram of the cross-sectional structure of the support plate in this utility model;

[0018] Figure 6 This is a partially enlarged structural diagram of section B of this utility model.

[0019] In the diagram: 1 Frame, 2 Support plate, 3 Slider, 4 Connecting plate, 5 Grooving plate, 6 Width adjustment mechanism, 61 Moving cylinder, 62 Lead screw, 63 Support rod, 64 Hinge, 65 Extension plate, 7 Positioning lead screw, 8 Fixing nut, 9 Positioning hole, 10 Guide wheel, 11 Handwheel, 12 Support wheel, 13 Connecting hole. Detailed Implementation

[0020] Example 1

[0021] like Figures 1 to 6As shown, this utility model discloses a soil trenching device for rapeseed planting. The technical solution includes a frame 1, which is U-shaped. The opposite side of one end of the frame 1 is fixedly connected to the sides of both ends of a support plate 2. The support plate 2 has an H-shaped cross-section. Three sliders 3 are slidably mounted on the support plate 2. A connecting plate 4 is fixedly connected to the bottom of each slider 3. A fixing nut 8 is fixedly mounted on the top of each slider 3. A through hole corresponding to the fixing nut 8 is opened on the top of the slider 3. A positioning screw 7 is internally threaded into the fixing nut 8. Several positioning holes 9 are opened on the top of the support plate 2. The positioning holes 9 cooperate with the positioning screw 7. Guide wheels 10 are fixedly mounted on both sides of the top and bottom of the slider 3. The four guide wheels 10 are located in the grooves at the top and bottom of the support plate 2, respectively. The guide wheels 10 not only reduce the slippage between the slider 3 and the support plate 2, but also... Dynamic friction can also precisely limit the sliding trajectory of slider 3, avoiding deviation and jamming, and ensuring uniform ditch spacing. The lower end of connecting plate 4 is fixedly connected to ditching plate 5. The ditching plate 5 is V-shaped with a pointed lower end. A width adjustment mechanism 6 is installed on ditching plate 5. Two support wheels 12 are fixedly installed on the side of the bottom of frame 1 away from support plate 2. The top of the protruding part of the frame 1 away from support plate 2 is provided with a connecting hole 13 for connecting to a traction vehicle. Slider 3 can slide freely along the groove of support plate 2 to adjust the position of slider 3. By combining the fixing nut 8 on the top of slider 3 with the positioning screw 7 and the positioning hole 9, the ditch spacing can be fixed and the ditch spacing can be adjusted arbitrarily without replacing parts. It can flexibly adapt to the needs of different rapeseed varieties and planting densities, and is especially suitable for small-scale farmers to dynamically adjust according to the conditions of the plot.

[0022] The width adjustment mechanism 6 includes a moving cylinder 61, a lead screw 62, a support rod 63, a hinge 64, and an extension plate 65. Two extension plates 65 are provided, and are rotatably mounted on both sides of the furrowing plate 5 via two hinges 64. One end of the lead screw 62 is rotatably connected to the side of the upper end of the furrowing plate 5. The ends of the lead screw 62 and the positioning lead screw 7 are fixedly connected to the middle of the end faces of two handwheels 11. Adjustment can be performed without additional tools, allowing a single farmer to operate manually. This is particularly suitable for rapid adjustments in complex field environments, lowering the operational threshold. The other end of the lead screw 62 passes through a threaded hole on the end face of the moving cylinder 61. Two symmetrical ear plates on the side of the moving cylinder 61 are rotatably connected to the side of one end of two support rods 63, and the side of the other end of the two support rods 63 are rotatably connected to the protruding parts at the side edges of two extension plates 65. The frame 1 and support plate 2 are made of carbon structural steel, while the connecting plate 4, trenching plate 5, and extension plate 65 are made of high manganese steel. By rotating the handwheel 11 at the end of the lead screw 62, the moving cylinder 61 can be driven to move axially along the lead screw 62, which in turn pushes the extension plate 65 to rotate around the hinge 64 via the support rod 63. When the moving cylinder 61 moves away from the trenching plate 5, the extension plate 65 unfolds and its width increases; conversely, it retracts and its width decreases. This structure achieves stepless adjustment of the trenching width, adapting to different soils such as clay and loam without disassembling the trenching plate 5, as well as different trench width requirements from rapeseed seedling stage to mature plant stage, significantly improving the versatility of the device and increasing efficiency.

[0023] The working principle of this utility model is as follows: In use, the frame 1 is first connected to the traction vehicle via the connecting hole 13, ensuring the lower pointed part of the trenching plate 5 maintains a preset contact depth with the ground and the frame 1 remains horizontal. Then, according to the rapeseed planting density requirements, the slider 3 is pushed, causing the guide wheel 10 inside the slider 3 to slide along the groove of the H-shaped support plate 2 to adjust the position of the slider 3. Next, the handwheel 11 connected to the positioning screw 7 is turned, causing the positioning screw 7 to rotate and insert into the positioning hole 9 along the thread direction of the fixing nut 8, thus fixing the trenching spacing. Then, depending on the soil type or rapeseed growth stage, the handwheel 11 connected to the screw 62 is rotated. Since one end of the screw 62 is rotatably connected to the trenching plate 5, the threaded transmission will drive the moving cylinder 61. Moving along the axial direction of the lead screw 62, the moving cylinder 61 pushes or pulls the two extension plates 65 around the hinge 64 through the support rod 63 connected by the ear plates on both sides. When the moving cylinder 61 moves away from the trench plate 5, the extension plates 65 expand and widen, and when it moves closer to the trenching plate 5, it contracts and narrows, completing the stepless adjustment of the trench width. After the traction vehicle is started, the frame 1 is driven forward. The pointed part at the lower end of the trenching plate 5 is inserted into the soil, and its V-shaped structure achieves the initial breaking and turning of the soil. The extension plates 65 simultaneously trim the two sides of the trench, and finally form a drainage and ventilation trench that meets the requirements. During the process, the carbon structural steel of the frame 1 and the support plate 2 can withstand the impact of external forces and prevent deformation. The high manganese steel of the connecting plate 4, the trenching plate 5 and the extension plate 65 can resist soil friction and gravel impact and reduce wear.

[0024] Components not described in detail in this article are existing technologies.

[0025] While the specific embodiments of this utility model have been described in detail above, this utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this utility model. Modifications or variations that do not involve creative labor are still within the protection scope of this utility model.

Claims

1. An oilseed rape planting soil furrow opening device, characterized in that, The frame (1) is U-shaped. The opposite side of one end of the frame (1) is fixedly connected to the side of both ends of the support plate (2). The support plate (2) has an H-shaped cross section. Three sliders (3) are slidably installed on the support plate (2). A connecting plate (4) is fixedly connected to the bottom of the sliders (3). A grooved plate (5) is fixedly connected to the lower end of the connecting plate (4). The grooved plate (5) is V-shaped with a pointed lower end. A width adjustment mechanism (6) is installed on the grooved plate (5). Two support wheels (12) are fixedly installed on the side of the bottom of the frame (1) away from the support plate (2). A connecting hole (13) for connecting a traction vehicle is opened on the top of the protruding part of the frame (1) away from the support plate (2). The width adjustment mechanism (6) includes a movable cylinder (61), a lead screw (62), a support rod (63), a hinge (64), and an extension plate (65). There are two extension plates (65), which are rotatably mounted on both sides of the grooved plate (5) by two hinges (64). One end of the lead screw (62) is rotatably connected to the side of the upper end of the grooved plate (5), and the other end of the lead screw (62) passes through the thread hole on the end face of the movable cylinder (61). Two symmetrical ear plates on the side of the movable cylinder (61) are rotatably connected to the side of one end of the two support rods (63), and the side of the other end of the two support rods (63) is rotatably connected to the protruding part at the edge of the side of the two extension plates (65).

2. A device for furrowing soil for planting oilseed rape according to claim 1, characterized in that: A fixing nut (8) is fixedly installed on the top of the slider (3). A through hole corresponding to the fixing nut (8) is opened on the top of the slider (3). A positioning screw (7) is internally threaded on the fixing nut (8). A number of positioning holes (9) are opened on the top of the support plate (2). The positioning holes (9) cooperate with the positioning screw (7).

3. A device for furrowing soil for planting of oilseed rape according to claim 1, characterized in that: Guide wheels (10) are fixedly installed on both sides of the top and bottom of the slider (3), and the four guide wheels (10) are respectively located in the grooves at the top and bottom of the support plate (2).

4. A device for furrowing soil for planting oilseed rape according to claim 2, characterised in that: The ends of the lead screw (62) and the positioning lead screw (7) are respectively fixedly connected to the middle of the end faces of the two handwheels (11).

5. A soil trenching device for oilseed rape planting according to claim 1, characterized in that: The frame (1) and support plate (2) are made of carbon structural steel, and the connecting plate (4), trenching plate (5) and extension plate (65) are made of high manganese steel.

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