Strip mine slope grass seed pre-burying and planting device
By designing a device for sowing, fertilizing, and turning soil rollers, the problem of difficult vegetation reclamation on open-pit mine slopes has been solved, enabling efficient planting and survival of native plants in northern regions, and realizing the pre-burying and application of grass seeds. This has solved the economic and aesthetic problems of vegetation reclamation on open-pit mine slopes in northern regions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BAOTOU IRON & STEEL (GROUP) CO LTD
- Filing Date
- 2025-07-25
- Publication Date
- 2026-05-19
AI Technical Summary
Reclamation of vegetation on open-pit mine slopes is difficult in northern regions due to geographical and climatic constraints. Existing equipment and methods are uneconomical and prone to waste, and the survival rate of native plants is low.
Design a device that includes a seeding roller, a fertilizer roller, and a soil-turning roller. The seeding roller and fertilizer roller sow seeds and fertilizer through holes, and the identification ring and soil-turning roller bury grass seeds and fertilizer into the soil layer to prevent the seeds from being blown away by the wind, thus realizing the connection between sowing and fertilization.
It improved the survival rate of native plants in northern open-pit mines during reclamation, reduced costs, and the staggered arrangement of seeds and fertilizers prevented seedling burn, resulting in beautiful and neat vegetation strips.
Smart Images
Figure CN224250182U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of green reclamation technology for open-pit mine slopes, specifically to a device for pre-burying and planting grass seeds on open-pit mine slopes. Background Technology
[0002] National economic development demands that the ecological environment not be sacrificed; ecological and environmental safety is an inviolable red line for enterprise development. The formation of open-pit mine slopes inevitably damages the original landform to some extent. Once the slope reaches its final form, enterprises must promptly restore the vegetation. For open-pit mines in northern regions, vegetation restoration is particularly difficult due to geographical and climatic limitations. Mining companies invest significant effort and resources in slope restoration, but improper equipment and methods can lead to substantial waste. Therefore, the most economical and practical method for slope restoration in northern open-pit mines is to utilize native plants. Native plants have high local adaptability and are more conducive to vegetation survival. Thus, there is a need to invent a simple, low-cost, and easy-to-operate device for the sowing of native vegetation on slopes. Utility Model Content
[0003] The purpose of this utility model is to provide a device for pre-burying and planting grass seeds on open-pit mine slopes to solve the problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a grass seed pre-burying and planting device for open-pit mine slopes, comprising a frame, a sowing roller, a fertilizing roller, and a turning roller. The sowing roller, fertilizing roller, and turning roller are arranged sequentially along a first direction and all extend along a second direction and are mounted on the frame. The first direction is the travel direction and is perpendicular to the second direction. The sowing roller includes a sowing cylinder and a first roller shaft fixed to the sowing cylinder. The sowing roller is rotatably mounted on the frame via the first roller shaft. A cavity structure for filling grass seeds is formed inside the sowing roller, and multiple first drains are evenly distributed on the circumferential surface of the sowing roller. The seeding roller has a first perforation hole, through which grass seeds inside the cavity structure can be dispersed to the outside. The fertilizer roller includes a fertilizer roller and a second roller shaft fixed to the fertilizer roller. The fertilizer roller can be rotatably mounted on the frame via the second roller shaft. The fertilizer roller has a cavity structure for filling fertilizer, and multiple second perforations are evenly opened on the circumference of the fertilizer roller. The fertilizer inside the cavity structure of the fertilizer roller can be dispersed to the outside via the second perforations. The turning roller can be rotatably mounted on the frame via a third roller shaft. Multiple turning heads are evenly arranged on the circumference of the turning roller for burying the grass seeds dispersed to the outside by the seeding roller and the fertilizer dispersed to the outside by the fertilizer roller into the soil layer.
[0005] Based on the above technical features, grass seeds can be filled into the cavity of the sowing roller. During the rolling of the sowing roller, the grass seeds can be scattered onto the soil through the first perforation. Fertilizer can be filled into the cavity of the fertilization roller. During the rolling of the fertilization roller, the fertilizer can be scattered onto the soil through the second perforation. During the rolling of the soil-turning roller, the seeds and fertilizer are buried into the soil layer through the soil-turning head, realizing the connection between sowing and fertilization. At the same time, when the seeds of native vegetation on the slope mature in autumn, the roller will collide and crush the seeds on the branches of native plants and bury them into the soil layer of the slope during the rolling of the roller, preventing the seeds from being blown away by the wind and improving the germination rate of native plant seeds in the second year. Therefore, the device in this utility model can realize vegetation reclamation on open-pit mine slopes, especially suitable for the reclamation of native plants in open-pit mines in the north. Furthermore, when the native grass seeds on the slope mature in autumn, the device can also be used to pre-bury grass seeds of existing vegetation on the slope, greatly improving the survival rate of green reclamation vegetation on open-pit slopes in the north and reducing cost input.
[0006] In a preferred embodiment of this technical solution, the sowing roller has several groups of first perforations on its circumferential surface perpendicular to the second direction. The first perforations in each group are evenly distributed, and the several groups of first perforations are arranged at equal intervals along the second direction. Similarly, the fertilizer roller has several groups of second perforations on its circumferential surface perpendicular to the second direction. The second perforations in each group are evenly distributed, and the several groups of second perforations are arranged at equal intervals along the second direction. More preferably, the spacing between adjacent first perforation groups is the same as the spacing between adjacent second perforation groups, and the first and second perforation groups are spatially staggered along the first direction.
[0007] Based on the above technical features, the first hole of the sowing roller and the second hole of the fertilizer roller are arranged alternately, so that there is a certain distance between the seeds and fertilizers that are dropped on the ground. When the turning roller buries the seeds and fertilizers underground, there is also a certain distance between the seeds and fertilizers, thus avoiding direct contact between the seeds and fertilizers and causing fertilizer "burning".
[0008] Preferably, in this technical solution, the turning roller comprises a plurality of independent rings arranged along the second direction, and each independent ring has a plurality of turning heads evenly arranged on its outer surface. More preferably, along the first direction, each group of first leakage holes has a corresponding independent ring, and the turning heads on the independent ring are located in the same vertical plane; simultaneously, along the first direction, each group of second leakage holes also has a corresponding independent ring, and the turning heads on the independent ring are located in the same vertical plane. The number of independent rings is the same as the total number of the first and second leakage hole groups.
[0009] Based on the above technical features, the first hole of the sowing roller and the second hole of the fertilizer roller are arranged alternately and intermittently. The seed leakage trajectory and fertilizer leakage trajectory formed on the slope are independent trajectories. The soil turning head on the soil turning roller coincides with the seed leakage trajectory and fertilizer leakage trajectory respectively. Therefore, the vegetation seedlings that eventually grow are also relatively beautiful and regular strips.
[0010] In this preferred embodiment, several independent rings are sequentially fitted onto the third roller shaft, with adjacent independent rings fitting together, and the inner diameter of the independent rings being larger than the shaft diameter of the third roller shaft.
[0011] Based on the above technical features, the soil-turning roller is composed of multiple independent rings with soil-turning heads, and each ring is closely arranged on the third roller shaft; at the same time, the inner diameter of the independent rings is larger than the shaft diameter of the third roller shaft, and the position of each independent ring relative to the third roller shaft is adjusted according to the undulation of the terrain to achieve close contact with the ground.
[0012] In a preferred embodiment of this technical solution, the frame includes a first connecting rod and a second connecting rod, wherein the first roller and the second roller are rotatably connected to the two ends of the first connecting rod, and the second roller and the third roller are rotatably connected to the two ends of the second connecting rod. More preferably, the first roller and the second roller are both rotatably connected to the two ends of the first connecting rod via bearings, and the second roller and the third roller are both rotatably connected to the two ends of the second connecting rod via bearings.
[0013] Based on the aforementioned technical features, the first and second roller shafts are connected, as are the second and third roller shafts, via independent first and second connecting rods, respectively. Therefore, the sowing roller, fertilizing roller, and tilling roller can be individually adjusted in angle and position to better conform to the slope angle during movement. Simultaneously, the connecting rods are connected to the roller shafts via bearings, enhancing the flexibility and applicability of the movement.
[0014] In a preferred embodiment of this technical solution, the frame further includes a traction rod, which is U-shaped. The opposite sides of the traction rod are respectively installed at both ends of the third roller shaft, and a pull ring is installed on the bottom surface of the traction rod away from the soil-turning roller. Alternatively, the opposite sides of the traction rod are respectively installed at both ends of the first roller shaft, and a pull ring is installed on the bottom surface of the traction rod away from the sowing roller. Attached Figure Description
[0015] Figure 1 This is a front view of the grass seed pre-burying and planting device for open-pit mine slopes in this embodiment of the present invention;
[0016] Figure 2 This is a top view of the grass seed pre-burying and planting device on the open-pit mine slope in this embodiment of the present invention;
[0017] Figure 3 This is a left view of the grass seed pre-burying and planting device for open-pit mine slopes in an embodiment of this utility model;
[0018] Figure 4 This is a right view of the grass seed pre-burying and planting device for open-pit mine slopes in an embodiment of this utility model;
[0019] Figure 5 This is a schematic diagram of the structure of the grass seed pre-burying and planting device on the open-pit mine slope in this embodiment of the present invention when it is on a downhill slope;
[0020] Figure 6 This is a schematic diagram of the structure of the grass seed pre-burying and planting device on the open-pit mine slope in this embodiment of the present invention when it is on an uphill slope;
[0021] Figure 7 This is an exploded view of the soil-turning roller in an embodiment of this utility model.
[0022] In the diagram: 1. Seeding roller; 11. Seeding cylinder; 12. First roller shaft; 13. First sprue; 2. Fertilizer roller; 21. Fertilizer cylinder; 22. Second roller shaft; 23. Second sprue; 3. Turning roller; 31. Independent ring; 32. Third roller shaft; 33. Turning head; 4. Frame; 41. First connecting rod; 42. Second connecting rod; 43. Traction rod; 44. Pull ring. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0025] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale.
[0026] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.
[0027] like Figures 1 to 7 As shown, this utility model provides a technical solution: a grass seed pre-burying and planting device for open-pit mine slopes, including a frame 4, a sowing roller 1, a fertilizing roller 2 and a soil turning roller 3. The sowing roller 1, the fertilizing roller 2 and the soil turning roller 3 are arranged sequentially along a first direction and all extend along a second direction and are installed on the frame 4. The first direction mentioned above is the travel direction of the grass seed pre-burying and planting device, and the first direction is perpendicular to the second direction.
[0028] The sowing roller 1 includes a sowing roller cylinder 11 and a first roller shaft 12 fixed to the sowing roller cylinder 11. The sowing roller cylinder 11 can be rotatably mounted on the frame 4 via the first roller shaft 12. A cavity structure for filling grass seeds is formed inside the sowing roller cylinder 11, and a plurality of first leakage holes 13 are evenly opened on the circumferential surface of the sowing roller cylinder 11. The grass seeds in the cavity structure of the sowing roller cylinder 11 can be dispersed to the outside through the first leakage holes 13.
[0029] The fertilizer roller 2 includes a fertilizer roller 21 and a second roller shaft 22 fixed to the fertilizer roller 21. The fertilizer roller 21 can be rotatably mounted on the frame 4 via the second roller shaft 22. A cavity structure for filling fertilizer is formed inside the fertilizer roller 21, and a plurality of second leakage holes 23 are evenly opened on the circumferential surface of the fertilizer roller 21. The fertilizer in the cavity structure of the fertilizer roller 21 can be dispersed to the outside through the second leakage holes 23.
[0030] The turning roller 3 can be rotatably mounted on the frame 4 via the third roller shaft 32. Multiple turning heads 33 are evenly arranged on the circumference of the turning roller 3, which are used to bury the grass seeds scattered to the outside by the sowing roller 1 and the fertilizer scattered to the outside by the fertilizing roller 2 into the soil layer.
[0031] In use, grass seeds can be filled into the cavity of the sowing roller 11. During the rolling of the sowing roller 1, the grass seeds can be scattered onto the soil through the first hole 13. Fertilizer can be filled into the cavity of the fertilization roller 21. During the rolling of the fertilization roller 2, the fertilizer can be scattered onto the soil through the second hole 23. During the rolling of the soil-turning roller 3, the seeds and fertilizer are buried into the soil layer through the soil-turning head 33, realizing the connection between sowing and fertilization. At the same time, when the native vegetation seeds on the slope mature in autumn, the roller will collide and crush the seeds on the branches of the native plants and bury them into the soil layer of the slope during the rolling of the roller, preventing the seeds from being blown away by the wind and improving the germination rate of native plant seeds in the second year. Therefore, the device in this utility model can realize vegetation reclamation on open-pit mine slopes, especially suitable for the reclamation of native plants in open-pit mines in the north. Furthermore, when the native grass seeds on the slope mature in autumn, the device can also be used to pre-bury grass seeds of existing vegetation on the slope, greatly improving the survival rate of green reclamation vegetation on open-pit slopes in the north and reducing cost input.
[0032] like Figure 2 As shown, the sowing roller 11 has several sets of first perforation groups on its circumferential surface perpendicular to the second direction. The first perforations 13 in each first perforation group are evenly distributed, and the several sets of first perforation groups are arranged at equal intervals along the second direction. The fertilizer roller 21 has several sets of second perforation groups on its circumferential surface perpendicular to the second direction. The second perforations 23 in each second perforation group are evenly distributed, and the several sets of second perforation groups are arranged at equal intervals along the second direction. Specifically, the first perforation group can be understood as a ring of holes arranged along the outer circumference of the sowing roller 11, and the second perforation group can be understood as a ring of holes arranged along the outer circumference of the fertilizer roller 21.
[0033] Furthermore, the spacing between adjacent first leakage hole groups is the same as the spacing between adjacent second leakage hole groups, and the first and second leakage hole groups are arranged alternately in space along the first direction. This ensures that during sowing and fertilization, there is a certain distance between the seeds and fertilizer spilled on the ground. When the turning roller 3 buries the seeds and fertilizer underground, there is also a certain distance between them, preventing direct contact between the seeds and fertilizer and thus avoiding fertilizer burn.
[0034] like Figure 2As shown, the turning roller 3 includes several independent rings 31 arranged along the second direction, and multiple turning heads 33 are evenly arranged on the outer surface of each independent ring 31. Along the first direction, each group of first drainage holes has a corresponding independent ring 31, and the turning heads 33 on the independent ring 31 are in the same vertical plane; at the same time, along the first direction, each group of second drainage holes also has a corresponding independent ring 31, and the turning heads 33 on the independent ring 31 are in the same vertical plane. Preferably, the number of independent rings 31 is the same as the sum of the number of the first drainage hole group and the second drainage hole group. Furthermore, the first drainage holes 13 of the sowing roller 1 and the second drainage holes 23 of the fertilizing roller 2 are arranged alternately, and the seed leakage trajectory and fertilizer leakage trajectory formed on the slope are both independent trajectories. The turning heads 33 on the turning roller 3 coincide with the seed leakage trajectory and the fertilizer leakage trajectory, respectively. Therefore, the vegetation seedlings that eventually grow are also relatively beautiful and regular strips.
[0035] like Figure 7 As shown, several independent rings 31 are sequentially fitted onto the third roller shaft 32, with adjacent independent rings 31 fitting together. The inner diameter of the independent rings 31 is larger than the shaft diameter of the third roller shaft 32. Furthermore, the turning roller 3 can adjust the position of each independent ring 31 relative to the third roller shaft 32 according to the undulations of the terrain, achieving close contact with the ground.
[0036] like Figures 1 to 6 As shown, the frame 4 includes a first connecting rod 41, a second connecting rod 42, and a traction rod 43. The first roller shaft 12 and the second roller shaft 22 are rotatably connected to the two ends of the first connecting rod 41, and the second roller shaft 22 and the third roller shaft 32 are rotatably connected to the two ends of the second connecting rod 42. The first roller shaft 12 and the second roller shaft 22, and the second roller shaft 22 and the third roller shaft 32 are connected via independent first connecting rods 41 and second connecting rods 42, respectively. Therefore, the sowing roller 1, the fertilizing roller 2, and the tilling roller 3 can be individually adjusted in angle and position to better achieve movement along the slope angle. Preferably, to further improve the flexibility and applicability of the grass seed pre-burying and planting device, the first roller shaft 12 and the second roller shaft 22 are rotatably connected to the two ends of the first connecting rod 41 via bearings, and the second roller shaft 22 and the third roller shaft 32 are rotatably connected to the two ends of the second connecting rod 42 via bearings.
[0037] Specifically, the bearing can be interference-fitted or splined with the roller and connecting plate. Axial positioning of the bearing can be achieved by creating a shoulder, elastic retaining ring, or stop ring on the roller to fix the bearing axially and prevent it from shifting under load. Of course, the connection methods described above are existing technologies and will not be described in detail here.
[0038] like Figure 2 , Figure 5and Figure 6 As shown, the traction rod 43 is U-shaped. When the grass seed pre-burying and planting device is used downhill, the opposite sides of the traction rod 43 are respectively installed at both ends of the third roller shaft 32, and a pull ring 44 is installed on the bottom surface of the traction rod 43 away from the soil turning roller 3. When the grass seed pre-burying and planting device is used uphill, the opposite sides of the traction rod 43 are respectively installed at both ends of the first roller shaft 11, and a pull ring 44 is installed on the bottom surface of the traction rod 43 away from the sowing roller 1.
[0039] In practical use, technicians can select appropriate grass seeds and fertilizers according to the local vegetation growth conditions, and load them into the sowing roller 11 and fertilizer roller 21 respectively. The device is then placed at the top or bottom of the slope to be reclaimed and rolled along the slope. During the rolling process, the grass seeds in the sowing roller 11 are scattered onto the slope through the first hole 13, and the fertilizer in the fertilizer roller 21 is evenly scattered onto the slope through the second hole 23. During the rolling process, the turning roller 3 buries the grass seeds and fertilizers into the soil through the turning action of the turning head 33, thus realizing the planting of grass seeds on the open slope. Meanwhile, when the native grass seeds on the slope mature in autumn, fertilizer is loaded into the fertilizer roller 21, and the device is placed at the top or bottom of the slope to roll along the slope. The seeding roller 1 peels off and crushes the mature grass seeds on the branches of the vegetation under the action of gravity, the fertilizer roller 2 spreads the fertilizer evenly on the slope, and the soil turning roller 3 buries the fallen grass seeds and fertilizer under the soil layer of the slope, thus realizing the pre-burying of mature grass seeds.
[0040] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A device for pre-burying and planting grass seeds on open-pit mine slopes, characterized in that, The machine includes a frame (4), a sowing roller (1), a fertilizer roller (2), and a tilling roller (3). The sowing roller (1), fertilizer roller (2), and tilling roller (3) are arranged sequentially along a first direction and all extend along a second direction and are mounted on the frame (4). The first direction is the direction of travel and is perpendicular to the second direction. The sowing roller (1) includes a sowing roller cylinder (11) and a first roller shaft (12) fixed to the sowing roller cylinder (11). The sowing roller cylinder (11) can be rotatably mounted on the frame (4) via the first roller shaft (12). A cavity structure for filling grass seeds is formed inside the sowing roller cylinder (11), and a plurality of first leakage holes (13) are evenly opened on the circumferential surface of the sowing roller cylinder (11). The grass seeds in the cavity structure of the sowing roller cylinder (11) can be scattered to the outside through the first leakage holes (13). The fertilizer roller (2) includes a fertilizer roller cylinder (21) and a second roller shaft (22) fixed to the fertilizer roller cylinder (21). The fertilizer roller cylinder (21) can be rotatably mounted on the frame (4) via the second roller shaft (22). A cavity structure for filling fertilizer is formed inside the fertilizer roller cylinder (21), and a plurality of second leakage holes (23) are evenly opened on the circumferential surface of the fertilizer roller cylinder (21). The fertilizer in the cavity structure of the fertilizer roller cylinder (21) can be dispersed to the outside through the second leakage holes (23). The turning roller (3) can be rotatably mounted on the frame (4) via the third roller shaft (32). Multiple turning heads (33) are evenly arranged on the circumference of the turning roller (3) to bury the grass seeds scattered to the outside by the sowing roller (1) and the fertilizer scattered to the outside by the fertilizing roller (2) into the soil layer.
2. The device for pre-burying and planting grass seeds on open-pit mine slopes according to claim 1, characterized in that, The seeding roller (11) has several sets of first leakage holes on its circumferential surface perpendicular to the second direction. The first leakage holes (13) in the first leakage hole set are evenly arranged, and the several sets of first leakage holes are arranged at equal intervals along the second direction. The fertilizer roller (21) has several sets of second leakage holes on its circumferential surface perpendicular to the second direction. The second leakage holes (23) in the second leakage hole sets are evenly arranged, and the several sets of second leakage holes are arranged at equal intervals along the second direction.
3. The device for pre-burying and planting grass seeds on open-pit mine slopes according to claim 2, characterized in that, The spacing between adjacent first leak groups is the same as the spacing between adjacent second leak groups, and along the first direction, the first leak groups and the second leak groups are arranged alternately in space.
4. The device for pre-burying and planting grass seeds on open-pit mine slopes according to claim 3, characterized in that, The soil turning roller (3) includes several independent rings (31) arranged along the second direction, and multiple soil turning heads (33) are evenly arranged on the outer surface of each independent ring (31).
5. The device for pre-burying and planting grass seeds on open-pit mine slopes according to claim 4, characterized in that, Along the first direction, each group of the first leakage hole group has an independent ring (31) that corresponds to it one by one, and the soil turning head (33) set on the independent ring (31) is in the same vertical plane; Meanwhile, along the first direction, each group of the second leakage hole group also has an independent ring (31) corresponding to it, and the soil turning head (33) set on the independent ring (31) is in the same vertical plane.
6. The device for pre-burying and planting grass seeds on open-pit mine slopes according to claim 5, characterized in that, The number of independent loops (31) is the same as the sum of the number of the first and second leak groups.
7. A device for pre-burying and planting grass seeds on open-pit mine slopes according to any one of claims 4 to 6, characterized in that, Several independent rings (31) are sequentially fitted onto the third roller shaft (32), with adjacent independent rings (31) fitting together. The inner diameter of the independent rings (31) is larger than the shaft diameter of the third roller shaft (32).
8. The device for pre-burying and planting grass seeds on open-pit mine slopes according to claim 1, characterized in that, The frame (4) includes a first connecting rod (41) and a second connecting rod (42), wherein, The first roller shaft (12) and the second roller shaft (22) are rotatably connected to the two ends of the first connecting rod (41), and the second roller shaft (22) and the third roller shaft (32) are rotatably connected to the two ends of the second connecting rod (42).
9. The device for pre-burying and planting grass seeds on open-pit mine slopes according to claim 8, characterized in that, The first roller shaft (12) and the second roller shaft (22) are rotatably connected to the two ends of the first connecting rod (41) through bearings, and the second roller shaft (22) and the third roller shaft (32) are rotatably connected to the two ends of the second connecting rod (42) through bearings.
10. The device for pre-burying and planting grass seeds on open-pit mine slopes according to claim 8, characterized in that, The frame (4) also includes a traction rod (43), which is U-shaped. The opposite sides of the traction rod (43) are respectively installed at both ends of the third roller shaft (32), and a pull ring (44) is installed on the bottom surface of the traction rod (43) away from the soil turning roller (3); or, The traction rod (43) is installed on opposite sides at both ends of the first roller shaft (12), and a pull ring (44) is installed on the bottom surface of the traction rod (43) away from the sowing roller (1).