Rootstock planter

Abstract

The utility model relates to a rhizome crop seeder belonging to the technical field of agricultural seeding equipment, and the rhizome crop seeder comprises a rack, a working device and a connecting device, the connecting device comprises a connecting piece and a working switch driving piece, one end of the connecting piece is rotatably installed on a support frame in the width direction of the support frame, the connecting piece is connected with a working support, the working switch driving piece is installed on the support frame, and an output end of the working switch driving piece drives the working device to rotate relative to the support frame, when the working device is located at a working position, a furrowing disc and a land roller are flush with the bottom of a walking mechanism or the furrowing disc and the land roller are lower than the bottom of the walking mechanism, and when the working device is located at a non-working position, the furrowing disc and the land roller are higher than the bottom of the walking mechanism, the rhizome crop seeder disclosed in the application can realize the rotation of the working device and the rising of the working device only by the working switch driving piece and the connecting piece, the structure is simpler, and the size is smaller.

Description

Technical Field

[0001] This utility model relates to the field of agricultural sowing equipment technology, and in particular to a seeder for root and tuber crops. Background Technology

[0002] Root and tuber crops, such as Corydalis yanhusuo, fern rhizome, black potato, Pinellia ternata, sweet potato, purslane, tiger pea, Arisaema heterophyllum, and Fritillaria cirrhosa, face numerous technical bottlenecks in cultivation. Traditional manual sowing methods are inefficient, and inaccurate control of depth and plant spacing leads to low germination rates and uneven growth. Existing sowing machinery requires a large lifting structure to vertically raise and lower the working device, enabling switching between working and non-working states. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing seeders with bulky lifting structures and to provide a seeder for root and tuber crops.

[0004] A root and tuber crop seeder includes a frame, a working device, and a connecting device. The frame includes a support frame and a traveling mechanism, the traveling mechanism being mounted at the bottom of the support frame. The working device includes a working support, a furrowing disc, a seed-laying mechanism, and a leveling roller. The furrowing disc, the seed-laying mechanism, and the leveling roller are sequentially mounted on the working support along the traveling direction of the traveling mechanism. The connecting device includes a connector and a working switching drive. One end of the connector is rotatably mounted on the support frame about the width of the support frame, and the connector is connected to the working support. The working switching drive is mounted on the support frame. The output end of the working switching drive drives the connecting member to rotate relative to the support frame, so that the working device can rotate to the working position and the non-working position respectively. When the working device is in the working position, the trenching disc and the leveling roller are flush with the bottom of the walking mechanism or the trenching disc and the leveling roller are lower than the bottom of the walking mechanism. When the working device is in the non-working position, the trenching disc and the leveling roller are higher than the bottom of the walking mechanism. The walking direction is perpendicular to the width direction.

[0005] In one embodiment, when the working device is in the working position, the angle between the connector and the working plane is -20° to 20°.

[0006] In one embodiment, when the working device is in the non-working position, the angle between the connector and the working plane is 70° to 110°.

[0007] In one embodiment, the connector is located on the outside of the working support in the width direction.

[0008] In one embodiment, the working support is connected to the connectors on both opposite sides in the width direction.

[0009] In one embodiment, the projections of the connectors located on both sides of the working support overlap in the width direction.

[0010] In one embodiment, at least two connectors are mounted on each outer side of the working support, which are spaced apart and parallel to each other along the walking direction.

[0011] In one embodiment, the support frame includes a horizontal frame and a vertical bracket, the vertical bracket being installed at one end of the horizontal frame in the direction of travel, the working device being located inside the horizontal frame, a vertical bearing being installed on the top surface of the horizontal frame, and the connecting member being rotatably connected to the horizontal frame through the vertical bearing.

[0012] In one embodiment, the working support is connected to a connecting shaft that extends along the width direction and protrudes outward from the outside of the working support, and the connector is rotatably sleeved on the connecting shaft.

[0013] In one embodiment, the output of the work switching drive is rotatably connected to the work support.

[0014] In one embodiment, the work switching drive is rotatably mounted on the support frame.

[0015] In one embodiment, the work switching drive is a hydraulic drive that directly provides a tension force in a vertical plane to the work support, the vertical plane being formed by the vertical direction and the traveling direction.

[0016] In one embodiment, the working device further includes a cantilever and a support member, the first end of the cantilever being rotatably mounted on the middle of the working support in the traveling direction, and the leveling roller being rotatably mounted on the end of the cantilever; one end of the support member is rotatably mounted on the end of the working support away from the trenching disc, and the end of the cantilever is slidably mounted on the other end of the support member without detachment.

[0017] In one embodiment, the working device further includes a spring sleeved on the support member, with opposite ends of the spring abutting against the working bracket and the end of the cantilever, respectively, to apply a force to the leveling roller away from the working bracket.

[0018] In one embodiment, the walking mechanism includes a triangular track and casters, the triangular track and casters being mounted at both ends of the support frame in the walking direction, and the triangular track and casters being located at the bottom of the support frame; the root and tuber crop planter also includes an engine, the engine being mounted on the support frame, and the triangular track being drive-connected to the engine.

[0019] In one embodiment, the furrowing disc, the seed-laying mechanism, and the leveling roller are aligned in the width direction.

[0020] In one embodiment, the working device further includes a fertilizer feeding mechanism, which includes a fertilizer storage box, a spiral fertilizer discharger, and a fertilizer guide pipe. The fertilizer storage box is installed on the working support and located at the top of the working support. The spiral fertilizer discharger is connected to the fertilizer storage box and the fertilizer guide pipe respectively, and is used to guide the fertilizer inside the fertilizer storage box into the fertilizer guide pipe. The bottom of the fertilizer guide pipe is connected to the trenching disc.

[0021] In one embodiment, the seed-discharging mechanism includes a seed storage box, a spoon-wheel precision seeder, and a seed guide tube. The seed storage box, the spoon-wheel precision seeder, and the seed guide tube are mounted on the working support. The spoon-wheel precision seeder is used to guide the seeds in the seed storage box into the seed guide tube.

[0022] This application discloses a root and tuber crop seeder. A working switch drive unit drives the working device to rotate relative to the support frame, positioning the working device in the working position. A furrowing disc, a seed-laying mechanism, and a leveling roller are sequentially installed on the working support along the traveling direction of the traveling mechanism. When the root and tuber crop seeder starts working, the furrowing disc first opens furrows in the ground, then the seed-laying mechanism places seeds into the furrows, and finally the leveling roller covers the furrows with soil, completing the sowing process. After the work is completed, the working device is driven to rotate again by the working switch drive unit, positioning it in the non-working position. This positions the furrowing disc and leveling roller higher than the traveling mechanism, allowing the traveling mechanism to move the entire root and tuber crop seeder. This application only requires the connection between the working switch drive unit and the working device to achieve the rotation of the working device and the raising of the furrowing disc and leveling roller, replacing the traditional, bulky lifting structure used to vertically raise and lower the working device of the seeder. Therefore, this application has a simpler structure, smaller size, lighter weight, and avoids serious soil damage. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application, the drawings used in the description of the embodiments or exemplary technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 A first-dimensional view of a seeder for root and tuber crops; Figure 2 for Figure 1 Enlarged view of point A in the middle; Figure 3 This is a second perspective view of a root and tuber crop planter; Figure 4 This is a third-dimensional view of a root and tuber crop planter; Figure 5 An exploded view of a root and tuber crop planter; Figure 6 This is a first perspective view of the working device; Figure 7 for Figure 6 Enlarged view at point B in the middle; Figure 8 This is a second perspective view of the working device; Figure 9 for Figure 8 Enlarged view at point C; Figure 10 This is the first exploded view of the working device; Figure 11 This is the second exploded view of the working device; Figure 12 A three-dimensional view of the leveling roller, cantilever, support components, and spring; Figure 13 Exploded view of the leveling roller, cantilever, support components, and spring; Figure 14 A three-dimensional view of the vertical bearing, connectors, and connecting shaft; Figure 15 Exploded view of the vertical bearing, connector, and connecting shaft; Figure 16 This is a 3D view of the rack.

[0025] The correspondence between the reference numerals and the component names is as follows: 1. Frame, 11. Support frame, 111. Horizontal frame, 112. Vertical bracket, 12. Walking mechanism, 121. Triangular track, 122. Universal wheel; 2 Working device, 21 Working support, 22 Furrowing disc, 23 Seed lowering mechanism, 231 Seed storage box, 232 Seed guide tube, 24 Soil leveling roller, 25 Fertilizer lowering mechanism, 251 Fertilizer storage box, 252 Fertilizer guide tube, 26 Cantilever, 27 Support component, 28 Spring, 201 Adaptor hole; 3. Connecting device; 31. Connecting component; 32. Working switching drive component; 4. Vertical bearings; 5. Connecting shaft. Detailed Implementation

[0026] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0027] Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise expressly specified. "Several" means one or more, unless otherwise expressly specified.

[0028] Please refer to the following: Figure 1 , Figure 3 and Figure 4 The root and tuber crop seeder provided in this application includes a frame 1, a working device 2, and a connecting device 3. The frame 1 includes a support frame 11 and a traveling mechanism 12, which is installed at the bottom of the support frame 11. The working device 2 includes a working support 21, a furrowing disc 22, a seed-laying mechanism 23, and a flat soil roller 24. The furrowing disc 22, the seed-laying mechanism 23, and the flat soil roller 24 are sequentially installed on the working support 21 along the traveling direction X of the traveling mechanism 12. The connecting device 3 includes a connector 31 and a working switching drive 32. One end of the connector 31 is rotatably installed on the support frame 11 around the width direction Y of the support frame 11. The connector 31 is connected to the working support 21. The working switching drive 32 is installed on the support frame 11. The output end of the working switching drive 32 drives the connector 31 to rotate relative to the support frame 11. The working device 2 rotates with the connector 31 relative to the support frame 11, so that the working device 2 can rotate to the working position and the non-working position respectively.

[0029] When the working device 2 is in the working position, the trenching disc 22 and the flat soil roller 24 are flush with the bottom of the traveling mechanism 12 or the trenching disc 22 and the flat soil roller 24 are lower than the bottom of the traveling mechanism 12. When the working device 2 is in the non-working position, the trenching disc 22 and the flat soil roller 24 are higher than the bottom of the traveling mechanism 12; the traveling direction X and the width direction Y are perpendicular.

[0030] This application discloses a root and tuber crop seeder. A furrowing disc 22, a seed-laying mechanism 23, and a flat soil roller 24 are sequentially mounted on a working support 21 along the traveling direction X of a traveling mechanism 12. When the root and tuber crop seeder starts working, the working device 2 is first driven to rotate relative to the support frame 11 by a working switching drive 32, so that the working device 2 is in the working position. This drives the furrowing disc 22 and the flat soil roller 24 to move downwards, so that the furrowing disc 22 and the flat soil roller 24 are below the bottom of the traveling mechanism 12 and in contact with the ground. Then, the furrowing disc 22 is used to spread seeds onto the ground. The process begins with furrowing. Seeds are placed into the furrows using the seed-laying mechanism 23, and finally, soil is covered into the furrows using the leveling roller 24, completing the sowing process. After sowing, the working device 2 is rotated again using the work-switching drive 32, placing it in a non-working position. This drives the furrowing disc 22 and the leveling roller 24 upwards, raising them above the traveling mechanism 12. The traveling mechanism 12 then moves the entire root crop planter towards the next target sowing area. Specifically, the rotation trajectory of the connecting piece 31 and the working device 2 can be roughly described as a fan shape. This application only requires the connection of the work-switching drive 32 and the connecting piece 31 to achieve the rotation of the working device 2 and the up-and-down movement of the furrowing disc 22 and the leveling roller 24, replacing the traditional, bulky lifting structure used to vertically raise and lower the working device 2 of the sowing machine. Therefore, the connecting device 3 of this application has a simpler structure, smaller size, and more flexible operation, making it particularly suitable for complex planting scenarios such as terraced fields and small plots.

[0031] In this application, the working plane refers to the plane formed by the walking direction X and the width direction Y.

[0032] For details, please refer to Figure 2 When the working device 2 is in the working position, the angle between the connecting piece 31 and the working plane is -20° to 20°. This angle ensures that the working device 2 is parallel or nearly parallel to the working plane. At this time, the furrowing disc 22 and the flat roller 24 move down to a position flush with or below the ground level, and the furrowing-sowing-filling operations are performed sequentially. The angle between the connecting piece 31 and the working plane when the working device 2 is in the working position can be designed as -20°, -10°, 0°, 10°, or 20°, and is not limited to a single value here.

[0033] Specifically, when the working device 2 is in the non-working position, the angle between the connecting member 31 and the working plane is 70°~110°. By maintaining this angle when the working device 2 is in the working position, the connecting member 31 is perpendicular or nearly perpendicular to the working plane. At this time, the trenching disc 22 and the flat roller 24 rise to a position above the ground, ensuring that the trenching disc 22 and the flat roller 24 do not obstruct the movement of the entire machine, allowing the traveling mechanism 12 to drive the entire machine to move stably and quickly. The angle between the connecting member 31 and the working plane when the working device 2 is in the non-working position can be designed to be 70°, 80°, 90°, 100°, or 110°, and is not limited to a single value here.

[0034] In one embodiment, please refer to the following: Figure 1 , Figure 3 and Figure 4 The furrowing tray 22, the seed-laying mechanism 23, and the flat soil roller 24 are aligned in the width direction Y. By aligning the furrowing tray 22, the seed-laying mechanism 23, and the flat soil roller 24 in the width direction Y, the furrowing-sowing-filling operations are carried out precisely and sequentially at the same location on the plot during the movement, ensuring a continuous sowing process.

[0035] In one embodiment, please refer to the following: Figure 10 and Figure 11 The working device 2 also includes a fertilizer feeding mechanism 25, which includes a fertilizer storage tank 251, a spiral fertilizer discharger, and a fertilizer guide pipe 252. The fertilizer storage tank 251 is mounted on the working support 21 and located at the top of the working support 21. The spiral fertilizer discharger is connected to both the fertilizer storage tank 251 and the fertilizer guide pipe 252, and is used to guide the fertilizer inside the fertilizer storage tank 251 into the fertilizer guide pipe 252. Please refer to [link / reference]. Figure 8 and Figure 9 The bottom of the fertilizer guide pipe 252 connects to the furrowing tray 22. This connection allows for immediate fertilization after furrowing, ensuring even application and facilitating subsequent sowing and furrow filling. It also results in a more compact structure, reducing the overall size of the sowing machinery. In one design, the fertilizer storage box 251 has a capacity of 40L~80L. In another design, the fertilizer storage box 251 has a smooth inner wall and a sloping bottom to prevent fertilizer residue from clogging it.

[0036] Specifically, please refer to Figure 8 There are four fertilizer guide tubes 252, and each fertilizer guide tube 252 is equipped with at least one furrowing tray 22. It can simultaneously perform four rows / columns of furrowing-fertilizing-sowing-furrowing operations on a piece of land, thereby improving sowing efficiency.

[0037] Specifically, the distance between the fertilizer feeding mechanism 25 and the seed feeding mechanism 23 along the travel direction X is 6-10cm, and the distance between the leveling roller 24 and the seed feeding mechanism 23 along the travel direction X is 30-40cm. This design ensures that the trenching-fertilizing-sowing-filling operations are carried out smoothly without interference, and achieves precise control of the key parameter of seed-fertilizer spacing, thereby comprehensively improving the germination rate, operation efficiency and planting benefits.

[0038] In one embodiment, please refer to the following: Figure 10 and Figure 11 The seed-discharging mechanism 23 includes a seed storage box 231, a spoon-wheel precision seeder, and seed guide tubes 232. These components are mounted on a working support 21. The spoon-wheel precision seeder guides the seeds from the seed storage box 231 into the seed guide tubes 232. In one design, the spoon-wheel precision seeder is specifically a conveyor chain with eight rows of spoons (not shown in the figure). At the top of the conveyor chain are four seed guide tubes 232, enabling the conveyor chain to transport seeds from the seed storage box 231 to the seed guide tubes 232. The four seed guide tubes 232 allow for simultaneous sowing of four rows / columns, resulting in high sowing efficiency.

[0039] In some embodiments, please refer to the following: Figure 3 , Figure 15 and Figure 16 The support frame 11 includes a horizontal frame 111 and a vertical bracket 112. The vertical bracket 112 is installed at one end of the horizontal frame 111 in the traveling direction X, meaning the top of the horizontal frame 111 is open, facilitating the installation of the working device 2 without interfering with its operation. The working device 2 is located inside the horizontal frame 111 and is protected by it on all sides. A vertical bearing 4 is installed on the top surface of the horizontal frame 111. The unobstructed top surface of the horizontal frame 111 facilitates the installation of the vertical bearing 4, which in turn facilitates the assembly of the connector 31. The connector 31 is rotatably connected to the horizontal frame 111 via the vertical bearing 4. This rotatable connection ensures smooth rotation between the connector 31 and the horizontal frame 111, allowing the working device 2 connected to the connector 31 to smoothly switch between working and non-working positions. In one design, four vertical bearings 4 are arranged symmetrically on opposite sides of the horizontal frame 111, and each vertical bearing 4 is connected to the end of a connector 31.

[0040] In one embodiment, when the working device 2 is in the working position, the connector 31 is limited and supported by the horizontal frame 111. By having the connector 31 supported by the horizontal frame 111 when the working device 2 is in the working position, the connector 31 can be limited, thereby improving the stability of the working device 2 connected to the connector 31 in the working position.

[0041] In one embodiment, when the working device 2 is in the non-working position, at least one connector 31 is limited and supported by the vertical bracket 112. By limiting the rotational stroke of the connector 31 to the vertical bracket 112 when the working device 2 is in the non-working position, the stability of the working device 2 in the non-working position can be improved, and wear caused by the downward movement of the trenching disc 22 and the flat roller 24 of the working device 2 in some scenarios can be avoided, thus preventing accidental damage to the service life of the equipment.

[0042] In one embodiment, the work switching drive 32 is mounted on the vertical bracket 112.

[0043] In one embodiment, please refer to the following: Figure 1-3 The connector 31 is located on the outer side of the working bracket 21 in the width direction Y. By positioning the connector 31 on the outer side of the working bracket 21 in the width direction Y, connection operations are facilitated, and the normal operation of the seed-lowering mechanism 23 and other components in the middle of the working bracket 21 is not interfered with, resulting in a more rational layout.

[0044] In one embodiment, please refer to the following: Figure 1 , Figure 3 and Figure 5 The working bracket 21 is connected to connecting parts 31 on both opposite sides in the width direction Y. By connecting the working bracket 21 to the connecting parts 31 on both opposite sides in the width direction Y, the balance of driving the working bracket 21 is achieved, ensuring that the working bracket 21 can be driven stably.

[0045] In one embodiment, please refer to the following: Figure 1 , Figure 3 , Figure 5 and Figure 14 The projections of the connecting members 31 on both sides of the working bracket 21 in the width direction Y overlap. By overlapping the projections of the connecting members 31 on both sides of the working bracket 21 in the width direction Y, for example, by making the connecting members 31 on both sides of the working bracket 21 parallel to each other, the supporting force applied by the connecting members 31 on both sides of the working bracket 21 to the working bracket 21 is balanced, thereby stably driving the rotation of the working bracket 21.

[0046] In one embodiment, please refer to the following: Figure 1 , Figure 3 and Figure 5Each outer side of the working support 21 is equipped with at least two parallel connectors 31 spaced apart along the walking direction X. These parallelogram linkages, formed by the installation of at least two parallel connectors 31 spaced apart along the walking direction X on each outer side of the working support 21, ensure that the working device 2 remains horizontal at all times due to the motion characteristics of the parallelogram linkage. This guarantees consistent fertilization and sowing depths and prevents a decline in sowing quality due to tilting of the working device 2.

[0047] In one embodiment, please refer to Figure 2 The working support 21 is connected to a connecting shaft 5, which extends along the width direction Y and protrudes from the outside of the working support 21. A connecting piece 31 is rotatably sleeved on the connecting shaft 5. By rotatably sleeved on the connecting shaft 5 protruding from the outside of the working support 21 by the connecting piece 31, it is ensured that the rotation of the connecting piece 31 can drive the working support 21 to rotate stably, thereby realizing a stable switching between the working position and the non-working position.

[0048] Optionally, the connecting shaft 5 extends through the working bracket 21 along the width direction Y, increasing the contact area and support effect between the connecting shaft 5 and the working bracket 21.

[0049] In one embodiment, please refer to Figure 3 The output end of the work switching drive 32 is rotatably connected to the work support 21. Since the work support 21 remains horizontal during movement, the rotatable connection between the output end of the work switching drive 32 and the work support 21 ensures smooth movement of the work support 21. In one design, the output end of the work switching drive 32 is rotatably connected to the work support 21 via a spherical bearing; specifically, the bearing is mounted on the work support 21, and the work switching drive 32 is rotatably connected to the spherical bearing.

[0050] In one embodiment, the work switching drive 32 is rotatably mounted on the support frame 11. This rotatable mounting of the work switching drive 32 to the support frame 11 ensures smooth movement of the work support 21. In one design, the work switching drive 32 is rotatably connected to the support frame 11 via a pin.

[0051] Specifically, the work switching drive 32 is a hydraulic drive, which directly provides a pulling force in a vertical plane to the work support 21. The vertical plane is formed by the vertical direction and the traveling direction X. The hydraulic drive applies a force to the work support 21 to control the switching between the work support 21 and the non-working position. In one design, the hydraulic drive is located in the middle of the width direction Y of the work support 21, allowing for a more balanced application of driving force to the work support 21.

[0052] In one embodiment, please refer to the following: Figure 6 and Figure 7 The working device 2 also includes a cantilever 26 and a support 27. The first end of the cantilever 26 is rotatably mounted on the middle of the working support 21 in the traveling direction X, and the leveling roller 24 is rotatably mounted on the end of the cantilever 26. One end of the support 27 is rotatably mounted on the end of the working support 21 away from the trench plate 22, and the end of the cantilever 26 is slidably mounted on the other end of the support 27 without detachment. Please refer to [link / reference]. Figure 13 One end of the cantilever 26 is provided with an adapter hole 201 that mates with the support member 27. The support member 27 can slide relative to the adapter hole 201, allowing the leveling roller 24 to move up and down in the direction of the working bracket 21. This allows the leveling roller 24 to move down during sowing to fill furrows and to move up when not in use to ensure smooth movement of the entire machine. Optionally, the other end of the support member 27 is equipped with a nut or end cap. The outer diameter of the nut or end cap is larger than the diameter of the adapter hole 201 of the cantilever 26, so that the end of the cantilever 26 does not detach from the other end of the support member 27.

[0053] Furthermore, please refer to the following: Figure 6 , Figure 7 and Figure 12 The working device 2 also includes a spring 28, which is sleeved on the support member 27. The opposite ends of the spring 28 abut against the working bracket 21 and the end of the cantilever 26, respectively, to apply a force away from the working bracket 21 to the leveling roller 24. The setting of the spring 28 enables the leveling roller 24 to elastically press the ground, which is suitable for farmland with uneven ground.

[0054] In one embodiment, please refer to the following: Figure 1 , Figure 3 and Figure 16 The walking mechanism 12 includes triangular tracks 121 and casters 122, which are mounted at both ends of the support frame 11 in the X-direction of travel. The triangular tracks 121 and casters 122 are located at the bottom of the support frame 11. The root crop planter also includes an engine, which is mounted on the support frame 11, and the triangular tracks 121 are connected to the engine via a transmission. During field operations, the triangular tracks 121 provide sufficient traction and ground contact area, reducing soil compaction. The triangular tracks 121 and casters 122 are located at opposite ends in the X-direction of travel. The casters 122 allow for 360° flexible turning, facilitating turning and U-turns in narrow fields, making it particularly suitable for complex planting scenarios such as terraced fields and small plots.

[0055] In one design, the engine is an air-cooled diesel engine. The air-cooled diesel engine is mounted on a vertical bracket 112. The portion of the vertical bracket 112 used to mount the air-cooled diesel engine uses a combination structure of rubber shock-absorbing pads and steel plates to reduce vibration transmission during operation. The air-cooled diesel engine is connected to the triangular track 121 via a hydraulic chain drive (not shown in the figure), and the air-cooled diesel engine transmits power to the triangular track 121, ensuring sufficient power for the entire machine to operate. The air-cooled diesel engine configuration transforms the tractor-driven system into a semi-automatic seeder, reducing the overall machine size, minimizing unnecessary consumables, and saving costs.

[0056] It is understood that in other embodiments, the walking mechanism 12 may only be provided with triangular track 121 or omnidirectional wheel 122, and it is not necessary to provide both triangular track 121 and omnidirectional wheel 122 at the same time.

[0057] The above description is merely an optional embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A root and tuber crop seeder, characterized in that, The device includes a frame, a working device, and a connecting device. The frame includes a support frame and a traveling mechanism, with the traveling mechanism mounted at the bottom of the support frame. The working device includes a working support, a furrowing disc, a seed-laying mechanism, and a leveling roller. The furrowing disc, the seed-laying mechanism, and the leveling roller are sequentially mounted on the working support along the traveling direction of the traveling mechanism. The connecting device includes a connector and a working switch drive. One end of the connector is rotatably mounted on the support frame around the width of the support frame and is connected to the working support. The working switch drive is mounted on the support frame, and its output end drives the connector to rotate relative to the support frame, so that the working device can rotate to a working position and a non-working position respectively. When the working device is in the working position, the trenching disc and the leveling roller are flush with the bottom of the traveling mechanism, or the trenching disc and the leveling roller are lower than the bottom of the traveling mechanism; when the working device is in the non-working position, the trenching disc and the leveling roller are higher than the bottom of the traveling mechanism; the traveling direction is perpendicular to the width direction.

2. The root and tuber crop seeder according to claim 1, characterized in that, When the working device is in the working position, the angle between the connecting member and the working plane is -20° to 20°. And / or, when the working device is in the non-working position, the angle between the connector and the working plane is 70°~110°; The working plane refers to the plane formed by the walking direction and the width direction.

3. The root and tuber crop seeder according to claim 1, characterized in that, The connector is located on the outer side of the working support in the width direction; the working support is connected to the connector on both opposite sides in the width direction; the projections of the connectors on both sides of the working support in the width direction overlap; at least two connectors are installed on each outer side of the working support, which are spaced apart and parallel to each other along the walking direction.

4. The root and tuber crop seeder according to claim 1, characterized in that, The support frame includes a horizontal frame and a vertical bracket. The vertical bracket is installed at one end of the horizontal frame in the direction of travel. The working device is located inside the horizontal frame. A vertical bearing is installed on the top surface of the horizontal frame. The connecting piece is rotatably connected to the horizontal frame through the vertical bearing.

5. The root and tuber crop seeder according to claim 1, characterized in that, The working support is connected to a connecting shaft that extends along the width direction and protrudes out of the outside of the working support. The connector is rotatably sleeved on the connecting shaft.

6. The root and tuber crop seeder according to claim 1, characterized in that, The output end of the work switching drive is rotatably connected to the work bracket; the work switching drive is rotatably mounted on the support frame; And / or, the work switching drive is a hydraulic drive, which directly provides a tension force in a vertical plane to the work support, the vertical plane being formed by the vertical direction and the traveling direction.

7. The root and tuber crop seeder according to claim 1, characterized in that, The working device further includes a cantilever and a support member. The first end of the cantilever is rotatably mounted on the middle of the working support in the direction of travel, and the leveling roller is rotatably mounted on the end of the cantilever. One end of the support member is rotatably mounted on the end of the working support away from the trenching plate, and the end of the cantilever is slidably mounted on the other end of the support member without detachment.

8. The root and tuber crop seeder according to claim 7, characterized in that, The working device also includes a spring, which is sleeved on the support member. The opposite ends of the spring abut against the working bracket and the end of the cantilever, respectively, to apply a force to the leveling roller away from the working bracket.

9. The root and tuber crop seeder according to claim 1, characterized in that, The walking mechanism includes a triangular track and omnidirectional wheels. The triangular track and omnidirectional wheels are installed at both ends of the support frame in the walking direction, and the triangular track and omnidirectional wheels are located at the bottom of the support frame. The root and tuber crop planter also includes an engine, which is installed on the support frame, and the triangular track is connected to the engine in a transmission manner.

10. The root and tuber crop seeder according to any one of claims 1 to 9, characterized in that, The furrowing disc, the seed-laying mechanism, and the leveling roller are aligned with each other in the width direction; And / or, the working device further includes a fertilizer feeding mechanism, which includes a fertilizer storage box, a spiral fertilizer discharger, and a fertilizer guide pipe. The fertilizer storage box is installed on the working support and located at the top of the working support. The spiral fertilizer discharger is connected to the fertilizer storage box and the fertilizer guide pipe respectively, and is used to guide the fertilizer inside the fertilizer storage box into the fertilizer guide pipe. The bottom of the fertilizer guide pipe is connected to the trenching disc. And / or, the seed-discharging mechanism includes a seed storage box, a spoon-wheel precision seeder, and a seed guide tube. The seed storage box, the spoon-wheel precision seeder, and the seed guide tube are mounted on the working support. The spoon-wheel precision seeder is used to guide the seeds in the seed storage box into the seed guide tube.

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