Sweet potato planting ridger

Abstract

The present application relates to the field of farmland ridging machinery technology, and proposes a sweet potato planting ridger, which comprises a rotary tillage mechanism and a ridging mechanism arranged in sequence along the walking direction, and a soil loosening mechanism arranged between the rotary tillage mechanism and the ridging mechanism. The soil loosening mechanism comprises a connecting frame, an auger shaft and a spiral blade. The connecting frame is arranged on the ridging mechanism, and the auger shaft is rotatably connected to the connecting frame. The auger shafts in the same group are symmetrically arranged with a vertical plane as a symmetry plane. The projection of the auger shaft on the horizontal plane and the projection of the auger shaft on the vertical plane are both arranged in an inclined manner. The spiral blade is arranged on the auger shaft and has a gradually changing diameter. The diameter of the spiral blade at the end of the auger shaft is the smallest. The spiral blade can gradually transfer the soil from the lower layer to the upper layer to the ridging mechanism through the rotation of the auger shaft. Through the above technical solution, the part of the soil before ridging can be pushed to the corresponding ridging position, solving the problem of low ridging efficiency of the existing ridger.

Description

Technical Field

[0001] This invention belongs to the field of farmland ridging machinery technology, specifically relating to a sweet potato planting ridging machine. Background Technology

[0002] Ridge planting creates favorable soil conditions for sweet potato growth in terms of water, fertilizer, air, and temperature, which has a positive effect on tuber formation and enlargement. Therefore, it is an important measure for high sweet potato yield, and ridge making has become an important part of mechanized sweet potato production.

[0003] Currently, there is no dedicated ridging machine among the existing sweet potato ridging machinery. Common ridging methods involve dragging a ridging plow behind a rotary tiller. However, in fields with high soil hardness and viscosity, even though the rotary tiller can break up the soil, the ridging machine needs the thrust provided by guide plates to overcome the cohesion between soil particles. Therefore, the ridging machine's travel speed is not fast in such fields. Because the ridging machine is attached to the rear of the rotary tiller, it also reduces the rotary tiller's travel speed. Even separating the ridging machine and the rotary tiller does not improve ridging efficiency. Summary of the Invention

[0004] In order to solve the problems existing in the prior art, the present invention provides a sweet potato planting ridging machine that can push part of the soil before ridging to the corresponding ridging position, thereby solving the problem of low ridging efficiency of existing ridging machines.

[0005] The specific technical solution adopted in this invention is as follows: a sweet potato planting and ridging machine, comprising a rotary tillage mechanism and a ridging mechanism arranged sequentially along the walking direction, and a soil loosening mechanism disposed between the rotary tillage mechanism and the ridging mechanism. The soil loosening mechanism includes a connecting frame, an auger shaft, and spiral blades. The connecting frame is disposed on the ridging mechanism. The head end of the auger shaft is rotatably connected to the connecting frame. There are several auger shafts arranged in pairs. The auger shafts in the same group are symmetrically arranged with the vertical plane as the symmetrical plane. The projection of the auger shaft on the horizontal plane and the projection on the vertical plane are both inclined. The spiral blades are disposed on the auger shafts and have a gradually changing diameter. The diameter of the spiral blades at the end of the auger shafts is the smallest. Each group of auger shafts corresponds to one furrow, and two adjacent auger shafts in adjacent groups correspond to one ridge. The larger diameter part of the spiral blade pushes the upper soil layer, and the smaller diameter part of the spiral blade pushes the lower soil layer. The spiral blades can gradually transfer the soil from the lower layer to the upper layer to the ridging mechanism by means of the rotation of the auger shaft.

[0006] As a further technical solution, the soil loosening mechanism also includes a drive assembly, which includes a drive member, a first bevel gear, a second bevel gear, a third bevel gear, and a support plate. The first bevel gear is rotatably mounted on the connecting frame, the second bevel gear is rotatably mounted on the support plate, and the support plate is mounted on the connecting frame. The second bevel gear meshes with both the first and third bevel gears. The drive member drives the first bevel gear to rotate, and the third bevel gear is located at the head end of the auger shaft. The auger shaft is rotatably mounted on the support plate.

[0007] As a further technical solution, the driving component includes a motor, a main driving wheel, a driven wheel, and a chain. The motor is mounted on the connecting frame and drives the main driving wheel to rotate. The main driving wheel is rotatably mounted on the connecting frame. The driven wheel is rotatably mounted on the connecting frame and coaxially arranged with the first bevel gear. The driven wheel, the first bevel gear, the second bevel gear, and the third bevel gear are arranged in a one-to-one correspondence. The main driving wheel drives the driven wheel to rotate via the chain.

[0008] As a further technical solution, the support plate is ball-jointed with the adjustment plate, and the auger shaft is rotatably connected to the adjustment plate. The auger shaft is adjusted with respect to the horizontal and vertical planes by means of the adjustment plate.

[0009] As a further technical solution, the maximum diameter of the spiral blade is one-quarter to one-third of the furrow width, and the minimum diameter is one-fifth to one-quarter of the maximum diameter, where the furrow width is also one-fifth to one-quarter of the maximum diameter.

[0010] As a further technical solution, the chain is a double-row chain.

[0011] As a further technical solution, the rotary tillage mechanism includes a rotary tiller frame, a power shaft, a transmission shaft, and rotary tillage blades. The rotary tiller is mounted on an external traction mechanism. One end of the power shaft is connected to the transmission shaft, and the other end is connected to an external power source. The transmission shaft is rotatably mounted on the rotary tiller frame, and there are several rotary tillage blades, all of which are mounted on the transmission shaft.

[0012] As a further technical solution, the rotary tiller blade consists of two concave blades, which are arranged perpendicularly to each other.

[0013] As a further technical solution, the ridging mechanism includes a ridging frame and guide plates. The ridging frame is connected to an external traction mechanism, and the connecting frame is mounted on the ridging frame. There are several guide plates, which are arranged in pairs. Two guide plates in the same group form a V-shaped structure.

[0014] As a further technical solution, the end of the guide plate is provided with a plurality of first connecting holes, the ridging frame is provided with a second connecting hole, the other end of the guide plate is hinged to the ridging frame, and the guide plate adjusts the included angle of the V-shaped structure by means of the first connecting holes and the second connecting holes.

[0015] The beneficial effects of this invention are as follows: The sweet potato planting ridging machine includes a rotary tillage mechanism, a soil loosening mechanism, and a ridging mechanism arranged sequentially along the walking direction. The rotary tillage mechanism is used to crush the soil in the field; the soil loosening mechanism is used to further break up the loose soil and then transport it to the ridging mechanism; the ridging mechanism is used to draw ridges in the field. Since the soil is broken up by the rotary tillage mechanism, the lower layer of soil will definitely have greater resistance than the upper layer. Therefore, the walking speed of the ridging mechanism cannot be too fast when ridging, which limits the efficiency of ridging. The soil loosening mechanism is designed to solve this problem. The soil loosening mechanism includes a connecting frame, an auger shaft, and spiral blades. The connecting frame is mounted on the ridging mechanism, and the head end of the auger shaft is rotatably mounted on the connecting frame. The spiral blades begin to wind around the auger shaft from its end, and the diameter of the spiral blades gradually changes, with the smallest diameter at the end of the auger shaft and the largest diameter closer to the head. This arrangement of the auger shaft and spiral blades allows for the pushing of the rotary tilled soil. Since the auger shaft is tilted in both horizontal and vertical projections, and its end can penetrate into the lower layer of soil, where the upper soil has already been pushed away, the smaller diameter spiral blades can push the soil more easily. Because the soil loosening mechanism transports the soil to the position after the ridge has been formed, the soil at the furrowing position of the ridging mechanism is reduced, decreasing the resistance encountered by the ridging mechanism during ridging and thus improving ridging efficiency. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 for Figure 1 Top view;

[0018] Figure 3 This is a schematic diagram of the soil loosening mechanism in this invention;

[0019] Figure 4 For along Figure 1 Soil screenshot in the B direction;

[0020] Figure 5 For along Figure 1 Soil screenshot from direction A in the middle;

[0021] Figure 6 This is a schematic diagram of the rotary tillage mechanism in this invention;

[0022] Figure 7 This is a schematic diagram of the ridging mechanism in this invention;

[0023] In the attached diagram, 1 is the rotary tillage mechanism, 2 is the ridging mechanism, 3 is the loosening mechanism, 4 is the connecting frame, 5 is the auger shaft, 6 is the spiral blade, 7 is the first bevel gear, 8 is the second bevel gear, 9 is the third bevel gear, 10 is the support plate, 11 is the motor, 12 is the drive main wheel, 13 is the drive driven wheel, 14 is the chain, 15 is the adjusting plate, 16 is the rotary tiller frame, 17 is the power shaft, 18 is the transmission shaft, 19 is the rotary tillage blade, 20 is the ridging frame, 21 is the guide plate, and 22 is the first connecting hole. Detailed Implementation

[0024] To make the technical problems to be solved, the technical solutions, and the beneficial effects of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0025] The present invention will be further described below with reference to the accompanying drawings and specific embodiments:

[0026] Specific implementation examples Figures 1 to 3 As shown, this invention provides a sweet potato planting ridging machine, including a rotary tillage mechanism 1 and a ridging mechanism 2 arranged sequentially along the walking direction, and a soil loosening mechanism 3 located between the rotary tillage mechanism 1 and the ridging mechanism 2. The soil loosening mechanism 3 includes a connecting frame 4, an auger shaft 5, and spiral blades 6. The connecting frame 4 is located on the ridging mechanism 2. The head end of the auger shaft 5 is rotatably connected to the connecting frame 4. There are several auger shafts 5 arranged in pairs. The auger shafts 5 in the same group are symmetrically arranged with the vertical plane as the symmetrical plane. The projection of the auger shaft 5 on the horizontal plane and the projection on the vertical plane are both inclined. The spiral blades 6 are located on the auger shafts 5 and their diameter gradually changes. The diameter of the spiral blade 6 located at the end of the auger shaft 5 is the smallest. Each group of auger shafts 5 corresponds to one furrow, and two adjacent auger shafts 5 in adjacent groups correspond to one ridge. The larger diameter part of the spiral blade 6 pushes the upper soil layer, and the smaller diameter part of the spiral blade 6 pushes the lower soil layer. The spiral blades 6 can gradually transfer the soil from the lower layer to the upper layer to the ridging mechanism 2 by means of the rotation of the auger shaft 5.

[0027] This invention provides a sweet potato planting ridging machine. Compared with the prior art, the sweet potato planting ridging machine includes a rotary tillage mechanism 1, a soil loosening mechanism 3, and a ridging mechanism 2 arranged sequentially along the walking direction. The rotary tillage mechanism 1 is used to crush the soil in the field; the soil loosening mechanism 3 is used to further break up the loose soil and then transport it to the ridging mechanism 2; the ridging mechanism 2 is used to draw ridges in the field. Since the lower layer of soil will definitely have greater resistance than the upper layer after the rotary tillage mechanism 1 breaks up the soil, the walking speed of the ridging mechanism 2 cannot be too fast when ridging, which limits the ridging efficiency. The soil loosening mechanism 3 is designed to solve this problem. The soil loosening mechanism 3 includes a connecting frame 4, an auger shaft 5, and spiral blades 6. The connecting frame 4 is mounted on the ridging mechanism 2. The head end of the auger shaft 5 is rotatably mounted on the connecting frame 4. The spiral blades 6 start from the end of the auger shaft 5 and are wound around it. The diameter of the spiral blades 6 gradually changes, with the smallest diameter at the end of the auger shaft 5 and the larger diameter closer to the head end. This arrangement of the auger shaft 5 and spiral blades 6 can push the soil after rotary tillage. Since the auger shaft 5 is inclined in both horizontal and vertical projections, and the end of the auger shaft 5 can penetrate into the lower layer of soil according to its arrangement, and since the upper layer of soil has already been pushed away, the smaller diameter spiral blades 6 can push the soil more easily. Because the soil loosening mechanism 3 transports the soil and moves to the position after the ridge is formed, the soil at the furrowing position of the ridging mechanism 2 is reduced, thus reducing the resistance encountered by the ridging mechanism 2 during ridging and improving ridging efficiency.

[0028] The working process of this invention is as follows: During operation, the ridging machine follows the external traction mechanism, and the rotary tillage mechanism tills the soil, covering the ground with the tilled soil. Due to the inclined setting of the auger shaft, the contact between the auger shaft and the ground soil is as follows... Figure 4 and Figure 5 As shown, Figure 4 It is along Figure 1 Soil cross-section diagram along direction B. Figure 5 It is along Figure 1 A cross-sectional view of the soil along direction A. Figure 4 The soil can be divided into four regions. Region 1 is located above Region 2, and Region 4 is located above Region 3. The auger shaft passes through Region 1 and Region 3. For the guide plate of the ridging mechanism, the soil resistance in Region 3 is the greatest, which also affects the walking speed of the ridging mechanism the most. This is because Region 3 is not only the farthest from the guide plate, but also has soil accumulation from Region 4 on top of it. Figure 5 The soil can be divided into four regions, with region five located in front of region one and region six located in front of region four. Furthermore, if the soil in region one is designated as the upper soil layer, and the soil in region two as the lower soil layer, then... Figure 5The middle layer refers to the upper soil layer. Figure 4 In the process, the auger shaft pushes the soil from Zones 1 and 3 to the position where the ridges are formed. Because the soil is pushed in layers, the ridging mechanism experiences less resistance during ridging, thus improving its travel efficiency. Figure 5 In the process, the auger shaft first pushes away the soil in zone one, and then pushes away the soil in zone five. At this time, the auger shaft will push the soil in zone three into zone five, and the soil in zone four will fall into zone three. Since there is no soil in zone four, the resistance to the guide plate is reduced compared to the soil in zone three. This setting reduces the resistance encountered by the guide plate during the movement, thereby improving the ridging efficiency.

[0029] like Figures 1 to 3 As shown in the figure, in a specific embodiment of the present invention, the soil loosening mechanism 3 further includes a driving assembly, which includes a driving member, a first bevel gear 7, a second bevel gear 8, a third bevel gear 9, and a support plate 10. The first bevel gear 7 is rotatably mounted on the connecting frame 4, the second bevel gear 8 is rotatably mounted on the support plate 10, the support plate 10 is mounted on the connecting frame 4, the second bevel gear 8 meshes with the first bevel gear 7 and the third bevel gear 9 respectively, the driving member drives the first bevel gear 7 to rotate, the third bevel gear 9 is mounted at the head end of the auger shaft 5, and the auger shaft 5 is rotatably mounted on the support plate 10.

[0030] In this embodiment, to further improve ridging efficiency, the ridging mechanism 2 will simultaneously create multiple ridges. Therefore, multiple auger shafts 5 are also required. To ensure that multiple auger shafts 5 can work normally, the loosening mechanism 3 also includes a drive assembly. The drive assembly includes a drive component, a first bevel gear 7, a second bevel gear 8, a third bevel gear 9, and a support plate 10. The first bevel gear 7 is rotatably mounted on the connecting frame 4. The drive component is mounted on the connecting frame 4 and provides power for the rotation of the first bevel gear 7. The second bevel gear 8 is rotatably connected to the support plate 10. The support plate 10 is mounted on the connecting frame 4, and the second bevel gear 8 is engaged with both the first bevel gear 7 and the third bevel gear 9. This allows the drive component to transmit power to the third bevel gear 9. Since the head end of the auger shaft 5 is rotatably connected to the support plate 10, if the third bevel gear 9 is also mounted at the head end of the auger shaft 5, the drive component can drive the auger shaft 5 to rotate, thereby enabling the loosening mechanism 3 to operate.

[0031] like Figures 1 to 3As shown, in a specific embodiment of the present invention, the driving component includes a motor 11, a driving main wheel 12, a driving driven wheel 13, and a chain 14. The motor 11 is mounted on the connecting frame 4 and drives the driving main wheel 12 to rotate. The driving main wheel 12 is rotatably mounted on the connecting frame 4. The driving driven wheel 13 is rotatably mounted on the connecting frame 4 and coaxially arranged with the first bevel gear 7. The driving driven wheel 13, the first bevel gear 7, the second bevel gear 8, and the third bevel gear 9 are arranged in a one-to-one correspondence. The driving main wheel 12 drives the driving driven wheel 13 to rotate via the chain 14.

[0032] In this embodiment, since the two auger shafts 5 in the same group are symmetrically arranged with the vertical plane as the symmetrical plane, that is, the two auger shafts 5 are arranged in a figure-eight shape, and the rotation of the auger shafts 5 both have the function of pushing soil, the number of auger shafts 5, third bevel gear 9, second bevel gear 8, and first bevel gear 7 can be set to the same form, that is, a one-to-one correspondence; in order to achieve the driving of multiple first bevel gears 7 rotating in the same direction, the driving component can be selected to include a motor 11, a driving main wheel 12, a driving driven wheel 13, and a chain 14. The motor 11 is mounted on the connecting frame 4 and can drive The main drive wheel 12 rotates and is mounted on the connecting frame 4. The driven wheel 13 is also mounted on the connecting frame 4 and is coaxial with the first bevel gear 7. The main drive wheel 12 drives the driven wheel 13 to rotate via chain drive. The driven wheel 13 then drives the first bevel gear 7 to rotate. Since the driven wheel 13 and the first bevel gear 7 are coaxial, the number of driven wheels 13 and the number of first bevel gears 7 are the same and they are arranged in a one-to-one correspondence. The main drive wheel 12 drives all the driven wheels 13 to rotate in the same direction via chain 14.

[0033] like Figures 1 to 3 As shown, in a specific embodiment of the present invention, the support plate 10 is ball-hinged to the adjustment plate 15, and the auger shaft 5 is rotatably connected to the adjustment plate 15. The auger shaft 5 is adjusted with respect to the horizontal plane and the vertical plane by means of the adjustment plate 15.

[0034] In this embodiment, for different soil environments, it is sometimes necessary to adjust the angle between the auger shaft 5 and the ground. An adjustment plate 15 can be set on the support plate 10, and the adjustment plate 15 and the support plate 10 are connected by a ball joint. This allows the angle of the adjustment plate 15 to be adjusted. The auger shaft 5 is rotatably mounted on the adjustment plate 15, that is, the auger shaft 5 is rotatably connected to the support plate 10 through the adjustment plate 15. When the posture of the adjustment plate 15 is adjusted, the angle of the auger shaft 5 can be adjusted, which meets the requirements of most common soil environments.

[0035] In this embodiment, in order to ensure that the adjustment plate 15 and the support plate 10 have both angle adjustment function and relative positioning function, an electric damper can be set between the adjustment plate 15 and the support plate 10. The electric damper will generate damping when it is energized. When damped, the adjustment plate 15 cannot rotate. When the electric damper is de-energized, it will no longer generate damping, and the adjustment plate 15 can rotate freely.

[0036] To reduce costs while ensuring a stable soil delivery rate for the loosening mechanism 3, the maximum diameter of the spiral blade 6 can be one-quarter to one-third of the furrow width, and the minimum diameter can be one-fifth to one-quarter of the maximum diameter, with the furrow width being equal to the maximum diameter.

[0037] Since chain 14 drives multiple drive wheels 13 to rotate and improves the driving efficiency of chain 14, chain 14 can be selected as a double-row chain.

[0038] like Figure 6 As shown, in a specific embodiment of the present invention, the rotary tillage mechanism 1 includes a rotary tiller frame 16, a power shaft 17, a transmission shaft 18, and rotary tillage blades 19. The rotary tiller frame 16 is mounted on an external traction mechanism. One end of the power shaft 17 is connected to the transmission shaft 18, and the other end is connected to an external power source. The transmission shaft 18 is rotatably mounted on the rotary tiller frame 16. There are several rotary tillage blades 19, all of which are mounted on the transmission shaft 18.

[0039] In this embodiment, the rotary tillage mechanism 1 includes a rotary tiller frame 16, a power shaft 17, a transmission shaft 18, and rotary tillage blades 19. The rotary tiller frame 16 is connected to an external traction mechanism. The power shaft 17 is rotatably mounted on the rotary tiller frame 16, and one end of the power shaft 17 is connected to an external power source, while the other end transmits power to the transmission shaft 18. The transmission shaft 18 is rotatably mounted on the rotary tiller frame 16. The axis of the power shaft 17 is perpendicular to the axis of the transmission shaft 18, and the axis of the power shaft 17 is along the walking direction. Several rotary tillage blades 19 are arranged side by side and evenly on the transmission shaft 18. The transmission shaft 18 drives the rotary tillage blades 19 to rotate, and the rotary tillage blades 19 complete the rotary tillage operation on the ground.

[0040] like Figure 6 As shown, in a specific embodiment of the present invention, the rotary tiller 19 consists of two concave blades, which are arranged perpendicularly to each other.

[0041] In this embodiment, in order to improve rotary tillage efficiency, the rotary tillage blade 19 can be configured as a combination of two blades, with the blades being concave and the two blades being folded together.

[0042] like Figure 7As shown, in a specific embodiment of the present invention, the ridging mechanism 2 includes a ridging frame 20 and a guide plate 21. The ridging frame 20 is connected to an external traction mechanism, and the connecting frame 4 is provided on the ridging frame 20. There are several guide plates 21, which are arranged in pairs. The two guide plates 21 in the same group form a V-shaped structure.

[0043] In this embodiment, the ridging mechanism 2 includes a ridging frame 20 and guide plates 21. The ridging frame 20 is connected to an external traction mechanism. The connecting frame 4 in the loosening mechanism 3 is set on the ridging frame 20. There are several guide plates 21, all of which are set on the ridging frame 20. Every two guide plates 21 form a group. The guide plates 21 in the same group present a V-shaped structure, and a ridge is formed between adjacent V-shaped structures.

[0044] like Figure 7 As shown, in a specific embodiment of the present invention, the soil guide plate 21 has a plurality of first connecting holes 22 at its end, the ridging frame 20 has a second connecting hole, and the other end of the soil guide plate 21 is hinged to the ridging frame 20. The soil guide plate 21 adjusts the included angle of the V-shaped structure by means of the first connecting holes 22 and the second connecting holes.

[0045] In this embodiment, the width of the ridge needs to be set differently for different situations. Therefore, the angle of the two guide plates 21 in the same group can be set to be adjustable. A first connecting hole 22 is opened at the end of the guide plate 21, and a second connecting hole is opened on the ridging frame 20. There are multiple first connecting holes 22 and one second connecting hole. Any one of the first connecting holes 22 can be set coaxially with the first connecting hole 22 by means of a pin. The other end of the guide plate 21 is hinged to the ridging frame 20. This setting can ensure that the angle of the V-shaped structure formed by the guide plate 21 is adjustable, thereby realizing different widths of the ridge.

[0046] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sweet potato planting and ridging machine, comprising a rotary tillage mechanism (1) and a ridging mechanism (2) arranged sequentially along the walking direction, characterized in that, It also includes a soil loosening mechanism (3) located between the rotary tillage mechanism (1) and the ridging mechanism (2). The soil loosening mechanism (3) includes a connecting frame (4), an auger shaft (5), and a spiral blade (6). The connecting frame (4) is located on the ridging mechanism (2). The head end of the auger shaft (5) is rotatably connected to the connecting frame (4). There are several auger shafts (5) arranged in pairs. The auger shafts (5) in the same group are symmetrically arranged with the vertical plane as the symmetrical plane. The projection of the auger shaft (5) on the horizontal plane and the projection on the vertical plane are both inclined. The spiral blades (6) are mounted on the auger shaft (5) and their diameters gradually change. The spiral blades (6) at the end of the auger shaft (5) have the smallest diameter. Each set of auger shafts (5) corresponds to one furrow, and two adjacent auger shafts (5) in an adjacent set correspond to one ridge. The larger diameter part of the spiral blades (6) pushes the upper soil layer, and the smaller diameter part of the spiral blades (6) pushes the lower soil layer. The spiral blades (6) can gradually transfer the soil from the lower layer to the upper layer to the ridging mechanism (2) by means of the rotation of the auger shaft (5). The soil loosening mechanism (3) further includes a drive assembly, which includes a drive component, a first bevel gear (7), a second bevel gear (8), a third bevel gear (9), and a support plate (10). The first bevel gear (7) is rotatably mounted on the connecting frame (4), and the second bevel gear (8) is rotatably mounted on the support plate (10). The support plate (10) is mounted on the connecting frame (4). The second bevel gear (8) meshes with the first bevel gear (7) and the third bevel gear (9) respectively. The drive component drives the first bevel gear (7) to rotate. The third bevel gear (9) is located at the head end of the auger shaft (5), and the auger shaft (5) is rotatably mounted on the support plate (10). The support plate (10) is ball-jointed to the adjustment plate (15), and the auger shaft (5) is rotatably connected to the adjustment plate (15). The auger shaft (5) is adjusted with the adjustment plate (15) to make angles with the horizontal plane and the vertical plane respectively. The ridging mechanism (2) includes a ridging frame (20) and a guide plate (21). The ridging frame (20) is connected to an external traction mechanism. The connecting frame (4) is located on the ridging frame (20). There are several guide plates (21) and they are arranged in pairs. The two guide plates (21) in the same group form a V-shaped structure.

2. The sweet potato planting and ridging machine according to claim 1, characterized in that, The driving component includes a motor (11), a driving main wheel (12), a driving slave wheel (13), and a chain (14). The motor (11) is mounted on the connecting frame (4) and drives the driving main wheel (12) to rotate. The driving main wheel (12) is rotatably mounted on the connecting frame (4). The driving slave wheel (13) is rotatably mounted on the connecting frame (4) and coaxially arranged with the first bevel gear (7). The driving slave wheel (13), the first bevel gear (7), the second bevel gear (8), and the third bevel gear (9) are arranged in a one-to-one correspondence. The driving main wheel (12) drives the driving slave wheel (13) to rotate by means of the chain (14).

3. The sweet potato planting and ridging machine according to claim 1, characterized in that, The maximum diameter of the helical blade (6) is one-quarter to one-third of the furrow width, and the minimum diameter is one-fifth to one-quarter of the maximum diameter, which is the furrow width.

4. A sweet potato planting and ridging machine according to claim 2, characterized in that, The chain (14) is a double-row chain.

5. A sweet potato planting and ridging machine according to claim 1, characterized in that, The rotary tillage mechanism (1) includes a rotary tillage frame (16), a power shaft (17), a transmission shaft (18), and rotary tillage blades (19). The rotary tillage frame (16) is mounted on an external traction mechanism. One end of the power shaft (17) is connected to the transmission shaft (18), and the other end is connected to an external power source. The transmission shaft (18) is rotatably mounted on the rotary tillage frame (16). There are several rotary tillage blades (19), all of which are mounted on the transmission shaft (18).

6. A sweet potato planting and ridging machine according to claim 5, characterized in that, The rotary tiller (19) consists of two concave blades, which are arranged perpendicularly to each other.

7. A sweet potato planting and ridging machine according to claim 1, characterized in that, The soil guide plate (21) has several first connecting holes (22) at its end, and the ridging frame (20) has a second connecting hole. The other end of the soil guide plate (21) is hinged to the ridging frame (20). The soil guide plate (21) adjusts the included angle of the V-shaped structure by means of the first connecting holes (22) and the second connecting holes.

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