Self-propelled precision ginger seeder and sowing method

Abstract

The present invention relates to a self-propelled precision ginger seeder and a sowing method, wherein the self-propelled precision ginger seeder comprises a main frame equipped with a self-propelled mechanism and a belt-type sowing device installed on the main frame, wherein the belt-type sowing device comprises a bracket installed on the main frame, two belt rollers rotatably connected to the bracket, and a conveyor belt connecting the two belt rollers, at least one belt roller is connected to a transmission device, and a plurality of ginger seed holding mechanisms distributed along the circumferential direction are provided on the conveying surface of the conveyor belt. The present invention realizes the fixation of the ginger seed posture through the designed ginger seed holding mechanism, overcomes the problem that the ginger buds are easily damaged and the orientation is inconsistent during the mechanized sowing of ginger; the conveyor belt is driven to rotate by the driving depth limiting wheel, thereby ensuring the synchronization of the whole machine movement and the ginger seed transportation, the field operation is flexible, the whole machine structure is compact and light, suitable for small field operations, the sowing spacing is uniform, and it is convenient for the later mechanized harvesting operation.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a self-propelled precision ginger seeder and a sowing method for completing mechanized sowing operations of ginger. Background Art

[0002] According to FAO estimates, the world's total ginger production in 2019 was nearly 15 million tons, with major producers being China, Nigeria, India, etc. Among them, China's ginger cultivation area is about 4 million mu, with a total output of about 10 million tons, accounting for about 1 / 2 and 2 / 3 of the world's total cultivation area and total output, respectively. Ginger is widely distributed in my country, with more ginger being grown in Sichuan, Yunnan, Guizhou, Anhui and other provinces in the south; and Shandong, Hebei and Henan in the north with larger cultivation areas. Among them, Shandong ranks first in the country in terms of ginger cultivation area.

[0003] At present, the planting of ginger in my country mainly relies on manual labor, which has problems such as high work intensity, low sowing efficiency, and high labor intensity, which has seriously restricted the large-scale planting of ginger; in order to facilitate the harvest of ginger mother in the later stage and increase the yield, there are strict requirements for the sowing of ginger, which should be placed horizontally in the seed ditch with the ginger buds facing the same direction. At present, there is no mature and available ginger sowing machine on the market to replace manual labor. Among them, the invention patent with patent number: CN209710680U has invented a young sprout adjustable ginger planting machine, which adopts a pin-type seeding method to replace the traditional manual seeding method. Although this method significantly improves the sowing efficiency and saves labor, its pin-type seeding method will destroy the ginger seed structure, causing the ginger seed to rot, and even affect the yield of ginger. If one of the ginger seeds is infected with ginger plague, the ginger seeds that have been pierced by the needle will also be infected with ginger plague, causing the ginger plague to spread, affecting the harvest, or even losing the harvest.

[0004] Faced with the problems of high labor intensity and shortage of agricultural labor in the ginger sowing process, the current mechanized ginger planting is difficult to have strong adaptability. It is urgent to invent a self-propelled precision ginger seeder to realize the mechanized sowing of ginger, which is of great significance to the sustainability and stability of the development of the ginger industry. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a self-propelled precision ginger seeder and a sowing method, which not only realize the mechanized planting of ginger, but also improve the consistency rate of the ginger bud orientation and avoid the damage of ginger seeds caused by needle piercing.

[0006] The present invention is achieved through the following technical scheme, which provides a self-propelled precision ginger seeder, including a main frame equipped with a self-propelled mechanism and a belt-type sowing device installed on the main frame, wherein the belt-type sowing device includes a bracket installed on the main frame, two belt rollers rotatably connected to the bracket, and a conveyor belt connecting the two belt rollers, at least one belt roller is connected to a transmission device, and a conveying surface of the conveyor belt is provided with a plurality of ginger seed holding mechanisms distributed along the circumferential direction.

[0007] This solution realizes the overall movement of the equipment through a self-propelled mechanism, and transports the ginger seeds to the seed trench through a belt-type sowing device to complete the sowing operation. The belt-type sowing device has a simple structure and a small overall weight. The ginger seed holding mechanism is set up to help the staff keep the ginger sprouts in a consistent direction when placing the ginger seeds.

[0008] As an optimization, the ginger seed holding mechanism includes a bottom plate fixed to the conveyor belt, and two side plates vertically fixed to the bottom plate, and the spacing between the two side plates decreases along the rotation direction of the conveyor belt. The ginger seed holding mechanism of this optimization scheme has a simple structure, and uses the two side plates to form a trapezoid, which is suitable for placing ginger seeds of different sizes and has strong versatility.

[0009] As an optimization, the bracket is fixed with guard plates located on both sides of the conveyor belt. This optimization solution prevents ginger seeds from falling from both sides by setting guard plates.

[0010] As an optimization, the two belt rollers are belt roller I and belt roller II, belt roller I is connected to the transmission device, and belt roller II is installed on the bracket through a tensioning mechanism. This optimization scheme adjusts the distance between belt roller II and belt roller I by setting a tensioning mechanism to meet the tensioning requirements of sowing at different plant spacings. When the sowing plant spacing is large, the number of ginger seeds on the conveyor belt is small, and when the sowing plant spacing is small, the number of ginger seeds on the conveyor belt is large, so that the conveyor belt can be tensioned according to the actual sowing situation.

[0011] As an optimization, the tensioning mechanism includes tensioning nuts fixed to the roller shaft of belt roller II and located on both sides of the conveyor belt, and tensioning bolts passing through the bracket along the tensioning direction and connected to the tensioning nuts. The tensioning mechanism of this optimization scheme is simple and suitable for small machinery. The distance between belt roller II and belt roller I can be changed by rotating the tensioning bolts, which is very convenient to operate.

[0012] As an optimization, a support plate I is fixed on one side of the main frame, and a connecting rod II extending in the horizontal direction is fixed on the other side. The main frame on the side where the connecting rod II is located is hinged with a support plate II through a horizontal axis; an arc groove is provided on the support plate I, and the center of the arc groove is located on the axis of the connecting rod II. A vertical long hole is provided on the support plate II, and a connecting shaft is passed through the vertical long hole. A connecting plate rotatably connected to the connecting rod II is fixed on the connecting shaft; a connecting rod I extending in the horizontal direction is fixed on the bracket, and one end of the connecting rod I extends into the arc groove, and the other end is fixed to the connecting plate. The setting of this optimization scheme allows the bracket as a whole to rotate around the axis of the connecting rod II to adjust the inclination angle of the belt-type sowing device. When sowing, the connecting rod I is rotated to the lowest end of the arc groove, and the output end of the belt-type sowing device is close to the seed furrow. After sowing or when changing lines to move the equipment, the output end of the belt-type sowing device is rotated upward to facilitate the movement of the entire machine.

[0013] As an optimization, the transmission device includes a driven wheel installed on the roller shaft of the belt roller, an intermediate wheel I connected to the driven wheel, and an intermediate wheel II connected to the self-propelled mechanism, wherein the intermediate wheel I is installed on the connecting rod I, and the intermediate wheel II is installed on the connecting rod II. A driving gear is coaxially fixed to the intermediate wheel II, and a reversing gear meshing with the driving gear is coaxially fixed to the intermediate wheel I. In this optimization scheme, the conveyor belt of the belt-type seeding device is driven by the self-propelled mechanism to rotate, which reduces the number of drives and reduces the weight of the whole machine. The meshing transmission of the gears is used to make the conveyor belt turn in the opposite direction of the equipment travel direction, which is more conducive to improving the seeding efficiency.

[0014] As an optimization, an external thread is provided on the connecting shaft, and the connecting shaft is fixedly connected to the support plate II through a fastening nut provided at the external thread. The connecting shaft of this optimization solution is fixedly connected to the support plate II through a fastening nut, which makes it convenient to rotate the fastening nut to rotate the bracket, thus shortening the time occupied by line change.

[0015] As an optimization, the self-propelled mechanism includes a driving wheel, a driving depth-limiting wheel located in front of the driving wheel, and a power device for driving the driving wheel to rotate. The wheel axle of the driving depth-limiting wheel is equipped with a driving wheel connected to the transmission device. The self-propelled mechanism of this optimization scheme provides walking power through the power device, and drives the driving wheel to rotate by driving the depth-limiting wheel to rotate by friction with the soil, thereby driving the conveyor belt of the belt-type sowing device to rotate through the transmission device, realizing the synchronization of equipment movement and conveying and sowing. When the equipment stops moving, the conveyor belt stops rotating to avoid damage and waste of ginger seeds.

[0016] The present invention also provides a sowing method using the self-propelled precision ginger seeder, comprising the following steps:

[0017] (1) Furrowing and ridge forming: Before sowing, use a furrowing and ridge forming machine to dig furrows and compact the ridge surface to facilitate the placement of the ginger seeder;

[0018] (2) Manual placement: Adjust the number of ginger seed holding mechanisms on the conveyor belt to adjust the spacing between ginger plants; start the self-propelled mechanism to drive the ginger seeder to operate. The staff will place the ginger seeds in the ginger seed holding mechanisms in the same direction as the ginger buds, with the end with the ginger buds facing upwards to prevent the ginger seed holding mechanisms from damaging the ginger buds;

[0019] (3) Circular placement: Under the action of the power device, the seeder moves forward, driving the depth-limiting wheel to rotate by friction with the soil, and driving the belt-type sowing device to operate through the transmission device. When the ginger seed holding mechanism runs to the bottom, the ginger seeds fall into the soil in a consistent direction of the ginger sprouts under the action of gravity, completing the placement operation;

[0020] (4) Manual soil covering: After sowing, the wet soil on the ridge is covered on the ginger seeds using tools to complete the soil covering operation;

[0021] (5) Row-by-row sowing: After completing the sowing of the row, fix the belt-type sowing device to the main frame using a hook, lift the machine to the ridge to be sown, lower the belt-type sowing device on the hook, and sow.

[0022] The beneficial effects of the present invention are as follows: the ginger seed holding mechanism is designed to fix the posture of the ginger seeds, thereby overcoming the problem that the ginger buds are easily damaged and have inconsistent orientations during mechanized sowing of large ginger; the conveyor belt is driven to rotate by a driving depth-limiting wheel, thereby ensuring the synchronization of the movement of the whole machine and the transportation of the ginger seeds. The field operation is flexible, the whole machine structure is compact and light, and is suitable for small field operations. The sowing plant spacing is uniform and consistent, which is convenient for later mechanized harvesting operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is the overall structure diagram of the self-propelled precision ginger seeder;

[0024] Figure 2 This is the side view of the self-propelled precision ginger seeder;

[0025] Figure 3 It is a partial view of the support plate;

[0026] Figure 4 It is the structural diagram of the power unit;

[0027] Figure 5 It is a structural diagram of a belt-type seeding device;

[0028] Figure 6 It is the structural diagram of the tensioning mechanism;

[0029] Figure 7 It is the transmission device structure diagram;

[0030] Figure 8This is a partial structural diagram of the ginger seed holding mechanism;

[0031] As shown in the figure:

[0032] 1. Power device, 2. Driving wheel, 3. Driving depth limiting wheel, 4. Straightening device, 5. Transmission device, 6. Belt-type sowing device, 7. Main frame, 8. Seat, 9. Joystick I, 10. Ginger seed box containing device, 11. Joystick II, 12. Support frame, 13. Joystick III, 14. Support plate I, 15. Connecting rod I, 16. Support plate II, 17. Connecting rod II, 101. Engine, 102. Pulley I, 103. Tensioning wheel I, 104. Pulley II, 105. Gearbox, 106. Power input shaft, 107. V-belt, 201. Guard plate I, 202. Ginger seed protection Holding mechanism, 203, U-shaped channel steel, 204, guard plate II, 205, tensioning mechanism, 206, belt roller I, 207, belt roller II, 208, conveyor belt, 301, tensioning bolt, 302, tensioning nut, 401, driven wheel, 402, chain II, 403, intermediate wheel II, 404, chain I, 405, driving wheel, 406, tensioning wheel II, 407, driving gear, 408, reversing gear, 409, intermediate wheel I. DETAILED DESCRIPTION

[0033] In order to clearly illustrate the technical features of this solution, this solution is described below through a specific implementation method.

[0034] like Figure 1 and 2 The self-propelled precision ginger seeder shown in the figure includes a main frame 7 equipped with a self-propelled mechanism, a belt-type sowing device 6 installed on the main frame, and a straightening device 4 installed in front of the main frame 7. When sowing, the straightening wheel on the straightening device 4 is located in the seed furrow between two ridges to ensure that the seeder can move forward along the seed furrow to avoid directional deviation. The structure of the straightening device can adopt the existing technology. The belt-type sowing device 6 is tilted, with the input end higher than the output end. Along the moving direction of the whole machine, the input end is located in front of the output end, and the output end extends to the seed furrow to prevent the ginger seeds from being damaged when they fall.

[0035] The self-propelled mechanism includes a driving wheel 2, a driving depth-limiting wheel 3 located in front of the driving wheel, and a power device 1 for driving the driving wheel to rotate. A driving wheel 405 connected to the transmission device is installed on the axle of the driving depth-limiting wheel. The power device 1 includes a main frame, an engine 101, a pulley Ⅰ102, a pulley Ⅱ104, a traveling device, a tensioning wheel Ⅰ103, a power input shaft, a V-belt and a support frame 12. The main frame is fixedly connected to the main frame and is used to support and fix the engine 101 and the gearbox 105; the engine 101 is a small gasoline engine fixed above the main frame; the pulley Ⅰ102 on the output shaft of the engine 101 drives the pulley Ⅱ104 on the power input shaft 106 of the traveling device to rotate through two V-belts 107; The tensioning wheel Ⅰ103 controls the tensioning of the two V-belts 107. When the joystick Ⅰ9 is pulled upward, the tensioning wheel Ⅰ tightens the belt. At this time, the pulley Ⅰ102 on the output shaft of the engine 101 drives the V-belt 107 on the power input shaft of the walking device to rotate, driving the operation of the walking device. When the joystick Ⅰ9 is pushed downward, the tensioning wheel Ⅰ is away from the V-belt 107, and the power generated by the engine 101 cannot be transmitted to the walking device. At this time, the seeder stops working, and the connection between the joystick Ⅰ9 and the tensioning wheel Ⅰ adopts the existing technology. The traveling device includes a power input shaft 106, a gearbox 105, a drive shaft, a joystick II11 and a joystick III13. The gearbox receives the power of the engine from the power input shaft, and after the gearbox changes speed, the power is output by the drive shaft; the traveling device is fixed to the bottom of the bracket through a support frame 12, and the joystick II11 is used to control the rotation direction of the driving shaft of the traveling device, thereby realizing the control of the traveling direction of the ginger seeder, wherein the joystick II11 includes a forward gear, a neutral gear and a reverse gear; the joystick III13 is used to control the magnitude of the output power of the driving shaft of the traveling device, thereby realizing the control of the traveling speed of the ginger seeder, wherein the joystick III13 includes a fast gear, a neutral gear and a slow gear; the driving wheel 2 is installed on the driving shaft at the lower end of the traveling device, and is used to drive the ginger seeder forward and backward; the driving depth limiting wheel 3 is installed at the front end of the seeder and the lower part of the main frame 7, and is used to drive the rotation of the belt-type sowing device 6.

[0036] The belt seeding device 6 includes a bracket mounted on the main frame, two belt rollers rotatably connected to the bracket, and a conveyor belt 208 connecting the two belt rollers, one of which is connected to the transmission device 5, and the bracket is fixed with guard plates located on both sides of the conveyor belt. A hook is provided at the lower end of the bracket, and a hanging ring adapted to the hook is provided on the main frame. After the bracket is rotated, the hook is hung in the hanging ring to prevent the bracket from rotating by itself, which is convenient for moving the whole machine. The two belt rollers of this embodiment are belt roller I 206 and belt roller II 207, respectively. Belt roller I is connected to the transmission device, and belt roller II is installed on the bracket through a tensioning mechanism. The guard plates on both sides of the conveyor belt are guard plate I 201 and guard plate II 204. In order to simplify the structure and reduce the weight of the whole machine, the bracket of this embodiment includes a U-shaped channel steel 203 with an opening facing upward, a guard plate I 201 and a guard plate II 204, the U-shaped channel steel 203, the guard plate I 201 and the guard plate II 204 are welded together, the bottom of the U-shaped channel steel 203 is welded with a connecting rod I 15, the belt roller I 206 is fixed to the guard plate I 201 at one end of the bracket through two bearing seats; the belt roller II 207 is fixed to the guard plate II 204 at the other end of the bracket through a tensioning mechanism 205; the conveyor belt 208 is wound around the two belt rollers. The upper surface of the conveyor belt is lower than the upper edge of the U-shaped channel steel, the guard plate I 201 and the guard plate II 204 are respectively fixed to the two ends of the U-shaped channel steel, and the channel steel side plate and the two guard plates are used to form a protection for the ginger seeds to prevent the ginger seeds from falling.

[0037] A plurality of ginger seed holding mechanisms 202 evenly distributed along the circumferential direction are provided on the conveying surface of the conveyor belt. The ginger seed holding mechanisms 202 include a bottom plate fixed to the conveyor belt by bolts, and two side plates vertically fixed to the bottom plate. The spacing between the two side plates gradually decreases along the rotation direction of the conveyor belt, forming an isosceles trapezoid.

[0038] like Figure 5 As shown, the tensioning mechanism 205 is fixed on both sides of the guard plate II 204 of the bracket and is symmetrically distributed. Figure 6 As shown, the tensioning mechanism includes a tensioning nut 302 fixed to the roller shaft of the belt roller II and respectively located on both sides of the conveyor belt, and a tensioning bolt 301 passed through the bracket along the tensioning direction and connected to the tensioning nut. The tensioning nut 302 is welded to the roller shaft of the belt roller II 207. The tensioning bolt 301 passes through the support plate welded on the guard plate II 204 and passes through the tensioning nut 302, and is fastened with the tensioning nut. The distance between the two belt rollers is adjusted by adjusting the length of the tensioning bolt 301 on the tensioning nut 302, thereby tensioning the conveyor belt 208.

[0039] The main frame 7 is also provided with a ginger seed box containing device 10 and a seat 8; the ginger seed box containing device 10 is located on both sides of the main frame and is symmetrically distributed, which is convenient for manual seed removal after placing the ginger seed box, and the seat is used to reduce the labor intensity of the staff.

[0040] A support plate Ⅰ14 is welded on one side of the main frame, and a connecting rod Ⅱ17 extending in the horizontal direction is fixed on the other side. A support plate Ⅱ16 is hinged on the main frame on the side where the connecting rod Ⅱ is located through a horizontal axis; the support plate Ⅰ14 is a fan-shaped plate, and an arc groove is provided on the support plate Ⅰ14. The center of the arc groove is located on the axis of the connecting rod Ⅱ17. A vertical long hole is provided on the support plate Ⅱ, and a connecting shaft is passed through the vertical long hole. A connecting plate rotatably connected to the connecting rod Ⅱ is fixed on the connecting shaft; a connecting rod Ⅰ15 extending in the horizontal direction is fixed on the bracket, and one end of the connecting rod Ⅰ15 extends into the arc groove, and the other end is fixed to the connecting plate. The connecting rod Ⅱ is set horizontally and perpendicular to the moving direction of the whole machine, and the connecting rod Ⅰ is parallel to the connecting rod Ⅱ. The connecting shaft is provided with an external thread, and the connecting shaft is fixedly connected to the support plate Ⅱ through a fastening nut set at the external thread. The fastening nut is a butterfly nut, which is more convenient for twisting operation.

[0041] The transmission device 5 is installed on one side in front of the main frame 7, including a driven wheel 401 installed on the roller shaft of the belt roller, an intermediate wheel I 409 drivingly connected to the driven wheel, and an intermediate wheel II 403 drivingly connected to the self-propelled mechanism, the intermediate wheel I 409 is installed on the connecting rod I, the intermediate wheel II 403 is installed on the connecting rod II, a driving gear 407 is coaxially fixed to the intermediate wheel II, and a reversing gear 408 meshing with the driving gear is coaxially fixed to the intermediate wheel I.

[0042] Specifically, the driven wheel 401 , the intermediate wheel I 409 , the intermediate wheel II 403 and the driving wheel 405 in this embodiment are all sprockets. The driven wheel 401 is connected to the intermediate wheel I 409 through a chain II 402 , and the driving wheel 405 is connected to the intermediate wheel II 403 through a chain I 404 . The driving wheel 405 is installed on the axle of the driving depth limiting wheel 3 and rotates synchronously with the driving depth limiting wheel 3; the intermediate wheel II 403 and the driving wheel 405 are located in the same plane and are connected by the chain I; the tensioning wheel II 406 is installed on the main frame, and the tensioning wheel II 406 is located outside the chain I and meshes with the chain I, which is used to tension the chain I and prevent the chain I from touching the main frame; the intermediate wheel II 403 and the driving gear 407 are welded together and coaxially installed on the connecting rod II 17; the driving gear 407 and the reversing gear 408 are in the same horizontal plane, and the two are meshed for transmission; the reversing gear 408 and the intermediate wheel I 409 are welded together and coaxially installed On the connecting rod Ⅰ15; the intermediate wheel Ⅰ409 and the driven wheel 401 are located in the same plane, and the driven wheel 401 serves as the driving wheel of the belt-type sowing device 6 to complete the circulation and transportation of ginger seeds; the driving wheel 405 rotates together with the driving depth limiting wheel 3, and drives the intermediate wheel Ⅱ403 to rotate through the chain Ⅰ403, thereby driving the coaxially mounted driving gear 407 to rotate, and through the meshing between the gears, the direction of the reversing gear 408 is opposite to that of the driving depth limiting wheel 3, and the intermediate wheel Ⅰ409 coaxially mounted with the reversing gear 408 drives the driven wheel 401 to rotate through the chain Ⅱ402 to realize the reverse operation of the belt-type sowing device 6 and the driving depth limiting wheel 3.

[0043] The working process of the seed drill of the present embodiment is as follows:

[0044] Before the operation, first put the ginger seed box containing ginger seeds on the ginger seed box holding device, and move the seeder to the ridge where the seed furrow has been opened. The belt-type sowing device and the straightening wheel are located in the seed furrow between the two ridges. At this time, the lower end of the belt-type sowing device is hung on the bracket of the power device through a hook to facilitate the movement of the machine. When starting the operation, loosen the hook of the belt-type sowing device, and the connecting rod Ⅰ welded on the bottom of the belt-type sowing device slides to the lowest end of the arc groove of the fan-shaped plate. At this time, the bottom end of the belt-type sowing device is close to the soil of the seed furrow, which is convenient for completing the sowing operation. Start the gasoline engine, drive the drive wheel to rotate, and the seeder moves forward. The driving depth limiting wheel drives the belt-type sowing device to operate through the transmission mechanism. The staff on the seat puts the ginger seeds in the seed box into the ginger seed holding mechanism of the belt-type sowing device according to the direction. When the ginger seed holding mechanism runs to the lowest end of the belt-type sowing device, the ginger seeds slide into the soil and fall into the seed furrow in a way that the ginger buds are in the same direction, completing the sowing operation.

[0045] The sowing method using the self-propelled precision ginger seeder of this embodiment includes the following steps:

[0046] 1. Furrowing and ridge forming: Before sowing, use a furrowing and ridge forming machine to dig furrows and compact the ridge surface to facilitate the placement of the ginger seeder;

[0047] 2. Manual placement: Adjust the number of ginger seed holding mechanisms on the conveyor belt to adjust the spacing between ginger plants; start the gasoline engine of the self-propelled mechanism to drive the ginger seeder to operate. The staff on the seat puts the ginger seeds in the seed box into the ginger seed holding mechanism in sequence according to the principle of consistent orientation of the ginger buds, with the end with the ginger buds facing upwards to prevent the ginger seed holding mechanism from damaging the ginger buds;

[0048] 3. Circular delivery: Under the action of the power device, the seeder moves forward, driving the depth-limiting wheel to rotate by friction with the soil, and driving the belt-type sowing device to operate through the transmission device. When the ginger seed holding mechanism runs to the bottom, the ginger seeds fall into the soil in a consistent direction of the ginger buds under the action of gravity, completing the delivery operation;

[0049] 4. Manual soil covering: After sowing, the wet soil on the ridge is covered on the ginger seeds by manual tools to complete the soil covering operation;

[0050] 5. Row-by-row sowing: After completing the sowing of this row, fix the belt-type sowing device to the main frame with a hook, lift the machine to the ridge to be sown, put down the belt-type sowing device on the hook, and start sowing.

[0051] The invention achieves the fixation of the ginger seed posture through the designed ginger seed holding mechanism, overcoming the problem that the ginger buds are easily damaged and the ginger buds are inconsistent in orientation during mechanized sowing of ginger. The self-propelled precision ginger seeder has been researched and innovated, which is convenient for compact structure arrangement, suitable for small volume production, accurate and flexible in field operation, suitable for small field operations, uniform sowing spacing, and convenient for later mechanized harvesting operations.

[0052] Of course, the above description is not limited to the above examples. Technical features not described in the present invention can be achieved by or by using existing technologies, which will not be described here. The above embodiments and drawings are only used to illustrate the technical scheme of the present invention and are not limitations of the present invention. The present invention is described in detail with reference to the preferred implementation methods. Ordinary technicians in this field should understand that changes, modifications, additions or substitutions made by ordinary technicians in this technical field within the essential scope of the present invention do not depart from the purpose of the present invention, and should also fall within the scope of protection of the claims of the present invention.

Claims

1. A self-propelled precision ginger seeder, characterized in that: The invention comprises a main frame (7) equipped with a self-propelled mechanism and a belt-type sowing device (6) installed on the main frame, wherein the belt-type sowing device (6) comprises a bracket installed on the main frame, two belt rollers rotatably connected to the bracket, and a conveyor belt connecting the two belt rollers, at least one belt roller is connected to a transmission device (5), and a plurality of ginger seed holding mechanisms (202) distributed along the circumferential direction are provided on the conveying surface of the conveyor belt, and the ginger seed holding mechanisms are used to fix the posture of the ginger seeds; the ginger seed holding mechanism (202) comprises a bottom plate fixed to the conveyor belt, and two side plates vertically fixed to the bottom plate, the spacing between the two side plates decreases along the rotation direction of the conveyor belt, and the two side plates are used to form a trapezoid to accommodate the placement of ginger seeds of different sizes; A support plate I (14) is fixedly connected to one side of the main frame, and a connecting rod II (17) extending in the transverse direction is fixedly connected to the other side. A support plate II (16) is hingedly connected to the main frame on the side where the connecting rod II is located through a transverse axis. An arc groove is provided on the support plate I (14), and the center of the arc groove is located on the axis of the connecting rod II (17). A vertical long hole is provided on the support plate II, and a connecting shaft is passed through the vertical long hole. A connecting plate rotatably connected to the connecting rod II is fixedly connected to the connecting shaft. A connecting rod I (15) extending in a transverse direction is fixedly connected to the bracket, one end of the connecting rod I (15) extends into the arc groove, and the other end is fixedly connected to the connecting plate; The transmission device comprises a driven wheel (401) mounted on the roller shaft of the belt roller, an intermediate wheel I (409) drivingly connected to the driven wheel, and an intermediate wheel II (403) drivingly connected to the self-propelled mechanism, the intermediate wheel I (409) being mounted on the connecting rod I, the intermediate wheel II (403) being mounted on the connecting rod II, a driving gear (407) being coaxially fixedly connected to the intermediate wheel II, and a reversing gear (408) being coaxially fixedly connected to the intermediate wheel I and meshing with the driving gear; The self-propelled mechanism comprises a driving wheel (2), a driving depth-limiting wheel (3) located in front of the driving wheel, and a power device (1) for driving the driving wheel to rotate, wherein a driving wheel (405) connected to the transmission device is mounted on the wheel axle of the driving depth-limiting wheel; The driven wheel (401), the intermediate wheel I (409), the intermediate wheel II (403) and the driving wheel (405) are all sprocket wheels. The driven wheel (401) is connected to the intermediate wheel I (409) through a chain II (402), and the driving wheel (405) is connected to the intermediate wheel II (403) through a chain I (404). The driving wheel (405) is mounted on the axle of the driving depth limiting wheel (3) and rotates synchronously with the driving depth limiting wheel (3). The wheel II (403) and the driving wheel (405) are located in the same plane and are connected by the chain I. A tensioning wheel II (406) is installed on the main frame. The tensioning wheel II (406) is located outside the chain I and meshes with the chain I, and is used to tension the chain I and prevent the chain I from touching the main frame. The intermediate wheel II (403) and the driving gear (407) are welded together and coaxially installed on the connecting rod II (17). The driving gear (407) and the reversing gear (4 08) are in the same horizontal plane, and the two are meshed for transmission; the reversing gear (408) and the intermediate wheel I (409) are welded together and coaxially mounted on the connecting rod I (15); the intermediate wheel I (409) and the driven wheel (401) are in the same plane, and the driven wheel (401) serves as the driving wheel of the belt-type sowing device (6) to complete the circulation and transportation of ginger seeds; the driving wheel (405) rotates together with the driving depth-limiting wheel (3), and drives the intermediate wheel II (403) to rotate through the chain I (404), thereby driving the coaxially mounted driving gear (407) to rotate, and the reversing gear (408) rotates in the opposite direction to the driving depth-limiting wheel (3) through the meshing between the gears, and the intermediate wheel I (409) coaxially mounted with the reversing gear (408) drives the driven wheel (401) to rotate through the chain II (402) to realize the reverse operation of the belt-type sowing device (6) and the driving depth-limiting wheel (3).

2. The self-propelled precision ginger seeder according to claim 1, characterized in that: The bracket is fixed with guard plates which are respectively located on both sides of the conveyor belt.

3. The self-propelled precision ginger seeder according to claim 1, characterized in that: The two belt rollers are belt roller I (206) and belt roller II (207), belt roller I is connected to the transmission device, and belt roller II is installed on the bracket through a tensioning mechanism.

4. The self-propelled precision ginger seeder according to claim 3, characterized in that: The tensioning mechanism comprises tensioning nuts (302) fixedly connected to the roller shaft of the belt roller II and respectively located on both sides of the conveyor belt, and tensioning bolts (301) passing through the bracket along the tensioning direction and connected to the tensioning nuts.

5. The self-propelled precision ginger seeder according to claim 1, characterized in that: The connecting shaft is provided with an external thread, and the connecting shaft is fixedly connected to the support plate II through a fastening nut arranged at the external thread.

6. A sowing method using the self-propelled precision ginger seeder according to any one of claims 1 to 5, characterized in that: The steps include: (1) Furrowing and ridge forming: Before sowing, use a furrowing and ridge forming machine to open furrows and compact the ridge surface; (2) Manual placement: Adjust the number of ginger seed holding mechanisms on the conveyor belt to adjust the spacing between ginger plants; start the self-propelled mechanism to drive the ginger seeder to operate. The staff will place the ginger seeds in the ginger seed holding mechanisms in the same direction as the ginger buds, with the end with the ginger buds facing upwards; (3) Circular placement: Under the action of the power device, the seeder moves forward, driving the depth-limiting wheel to rotate by friction with the soil, and driving the belt-type sowing device to operate through the transmission device. When the ginger seed holding mechanism runs to the bottom, the ginger seeds fall into the soil in a consistent direction of the ginger sprouts under the action of gravity; (4) Manual covering: After sowing, the wet soil on the ridge is covered on the ginger seeds using tools; (5) Row-by-row sowing: After completing the sowing of the row, fix the belt-type sowing device to the main frame using a hook, lift the machine to the ridge to be sown, lower the belt-type sowing device on the hook, and sow.

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