Precise and uniform wheat sowing equipment based on Beidou navigation system

Abstract

The invention relates to the technical field of agricultural machinery, and discloses wheat precise and uniform sowing equipment based on a Beidou navigation system, the wheat precise and uniform sowing equipment comprises a rack and a plurality of sowing mechanisms arranged on the rack, each sowing mechanism comprises a seed box, a seeder, a frame and a press wheel, each frame is provided with a straw processing mechanism, and the straw processing mechanisms are arranged on the seed boxes. The straw processing mechanism comprises a soil breaking ploughshare, a material receiving plate, a hollow shaft rotationally arranged on the frame, an inner gear set rotationally arranged on the hollow shaft in a sleeving mode, a first gear set and a second gear set, wherein the soil breaking ploughshare and the material receiving plate are sequentially fixed in the front-back direction of the frame, and the first gear set and the second gear set are rotationally arranged in the hollow shaft. According to the wheat precise and uniform sowing equipment based on the Beidou navigation system, straw cutting is achieved through rotation of the first cutting knife and the second cutting knife in the corresponding cutting grooves, the situation that seeds fall on the straw can be reduced by cutting the straw, the straw can be more effectively grabbed and cut through reverse rotation, and the wheat precise and uniform sowing equipment is convenient to use and high in practicability. And force is applied to the straw from different directions, so that the cutting efficiency and speed are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a wheat precision and uniform sowing device based on the Beidou navigation system. Background Art

[0002] With the advancement of agricultural modernization, precision agriculture has gradually become an important means to improve agricultural production efficiency and reduce resource waste. As one of the world's major food crops, wheat is facing increasing demand for planting management and high yield and quality. Traditional wheat sowing processes often face problems such as seed waste, uneven sowing depth, and insufficient land utilization. To solve these problems, modern agricultural equipment has begun to introduce high-tech means. The application of the Beidou navigation system provides precise positioning and navigation support for sowing equipment.

[0003] The Beidou navigation system has the characteristics of high precision, high reliability and wide coverage. It uses the Beidou navigation module to receive Beidou satellite signals to achieve high-precision positioning. According to the position information provided by the Beidou navigation module, the sowing speed and walking route are adjusted in real time to ensure that the spacing and density of each row are uniform, and to ensure the accurate position of the sowing equipment during field operations.

[0004] The existing publication number CN116784058B discloses a wheat seed drill for wheat planting and a sowing method thereof, which includes a machine body, a drill cabin is provided on one side of the machine body, a furrowing wheel and a pressure wheel are provided at the bottom inside the drill cabin, and several seeding devices are provided in the drill cabin, the seeding devices include a seeding ring disk, a passive ring disk and a positioning ring disk, a seeding block is provided on the positioning ring disk, and a connected material receiving trough and a vertical groove are provided on the seeding block, and a seeding pipe is connected to the bottom of the vertical groove.

[0005] Although the above technical solution can achieve the effect of quantitative sowing and has the advantage of avoiding damage to wheat seeds, in the existing technology, the seeder, as a key tool for wheat planting, mainly cultivates the soil by breaking the soil to facilitate seed sowing, and before wheat planting, a certain amount of straw will be retained in the soil to inhibit the evaporation of water in the soil and improve the soil's water retention capacity. However, the straw left directly in the soil also has the following problems. First, untreated straw may cause wheat seeds to fall on the straw and cannot fully contact the soil. This situation will significantly affect the germination and growth of the seeds, thereby reducing the emergence rate and the overall crop growth quality. Secondly, untreated straw may also cause uneven water distribution, thereby affecting the seed water absorption capacity and causing the seedling growth to be hindered. Therefore, a new type of wheat precision and uniform sowing equipment based on the Beidou navigation system is needed to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a wheat precision and uniform sowing equipment based on the Beidou navigation system to solve the problem raised in the above background technology that the presence of untreated straw in the soil may cause wheat seeds to fall on the straw, resulting in hindered seedling growth.

[0007] The present invention provides a wheat precision and uniform sowing device based on the Beidou navigation system, which adopts the following technical solutions:

[0008] A wheat precision and uniform sowing device based on the Beidou navigation system comprises a frame, a traction frame arranged on the frame, a ground wheel assembly arranged along the left and right directions of the frame, and multiple sowing mechanisms arranged on the frame, each sowing mechanism comprising a seed box mounted on the frame, a seeder arranged in the seed box, a corrugated pipe arranged at the bottom of the seed box, a seed guide pipe connected to the corrugated pipe, brackets arranged on the left and right sides of the seed guide pipe, a frame fixedly connected to the bracket, and pressing wheels arranged along the front and rear of the frame, each frame being provided with a straw processing mechanism, the straw processing mechanism being located in front of the seed guide pipe;

[0009] The straw processing mechanism includes a soil-breaking plow and a material receiving plate fixed in sequence along the front-to-back direction of the frame, a hollow shaft rotatably arranged on the frame, an internal gear set rotatably sleeved on the hollow shaft, and a first gear set and a second gear set rotatably arranged in the hollow shaft, wherein the internal gear set includes multiple sets of first internal gears and second internal gears, the first gear set includes a first shaft and multiple sets of first gears fixed on the first shaft, and the second gear set includes a second shaft and multiple sets of second gears fixed on the second shaft;

[0010] A first cutting knife is fixed on the first internal gear, and a second cutting knife is fixed on the second internal gear. The first cutting knife and the second cutting knife are designed in opposite directions. The connecting plate is provided with cutting grooves that are the same in number as the first cutting knife and the second cutting knife and correspond one to one.

[0011] Furthermore, the first shaft and the second shaft both pass through the frame and are fixed with a third gear and a fourth gear respectively, the third gear and the fourth gear are meshed with each other, and a control mechanism is provided on the frame, the control mechanism includes a motor, and the output end of the motor is connected to the second shaft;

[0012] A scraping mechanism is provided in the seed guide tube, and the scraping mechanism is used to scrape the inner wall of the seed guide tube up and down.

[0013] Furthermore, the scraping mechanism includes a circular ring provided on the inner wall of the bottom end of the seed guide tube, scraping rings fixed above and below the circular ring, a crossbar fixed in the middle of the circular ring, a connecting arm rotatably provided on the crossbar, a cam rotatably connected to the other end of the connecting arm, and a rotating rod fixed to the other end of the cam, wherein the circular ring and the scraping ring are both in contact with the inner wall of the seed guide tube;

[0014] One end of the rotating rod passes through the outside of the seed guide tube and is fixed with a driven gear. A half gear is engaged with one side of the driven gear. The half gear is rotated on the seed guide tube through a connecting shaft. A first transmission part is provided between the connecting shaft and the second shaft rod.

[0015] Furthermore, the rotating rod is rotatably arranged on the seed guide tube, and a torsion spring is also provided on the rotating rod.

[0016] Furthermore, the hollow shaft is provided with slots having the same number as the first gear and the second gear and corresponding one to one, wherein the first gear corresponds one to one with and meshes with the first internal gear, and the second gear corresponds one to one with and meshes with the second internal gear.

[0017] Furthermore, a rotating drum is provided below the earth-breaking plowshare and is rotated by a rotating shaft. A plurality of driving rods are fixed on the rotating drum in a circumferential distribution. A channel for the driving rods to rotate is provided on the earth-breaking plowshare.

[0018] Wherein, support frames are rotatably provided at both ends of the rotating shaft, the support frames are fixed on the frame, and a second transmission part is also provided between the rotating shaft and the second shaft rod.

[0019] Furthermore, a plurality of blades in contact with the straw are fixed on the material receiving plate.

[0020] Furthermore, a protective cover is fixed outside the frame, and the protective cover is used to shield the control mechanism.

[0021] Furthermore, a soil-breaking wing is fixed outside the seed guide tube, and a material guide plate is fixed inside the seed guide tube.

[0022] Furthermore, a shielding plate is fixed on the frame, and the shielding plate is located above the material receiving plate.

[0023] Beneficial effects of the present invention:

[0024] 1. A straw processing mechanism and a driving mechanism are provided, and the first cutting knife and the second cutting knife are rotated in the corresponding cutting trough to achieve straw cutting. By cutting the straw, the situation of seeds falling on the straw can be reduced, the contact area between the seeds and the soil can be increased, the seed germination rate and the crop growth quality can be improved, and the surface area of the cut straw is increased, which helps microorganisms to decompose the straw more effectively, accelerate its conversion into soil organic matter, and improve soil fertility. The first internal gear and the second internal gear are controlled to rotate in opposite directions by the cooperation of the third gear and the fourth gear. The reverse rotation can more effectively grasp and cut the straw, apply force to the straw from different directions, thereby improving the cutting efficiency and speed, and the soil can be broken up as the first cutting knife and the second cutting knife rotate. The loose soil can not only better mix the straw with the soil, but also help decompose the straw and release nutrients, and is also conducive to uniform sowing of the seeder.

[0025] 2. By setting up a scraping mechanism, the rotation of the rotating rod is used to control the connecting arm to pull the ring to move on the inner wall of the seed guide tube, so that the scraping ring scrapes the inner wall of the seed guide tube up and down, thereby being able to scrape off the soil sticking to the inner wall of the seed guide tube, further avoiding the problem that when the soil sticks to the inner wall of the seed guide tube, the seeds are blocked by the soil stuck to the inner wall of the seed guide tube when falling, and cannot contact the ground in time. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0027] Figure 2 For the present invention Figure 1 Schematic diagram of the three-dimensional structure of the middle sowing mechanism;

[0028] Figure 3 For the present invention Figure 2 Schematic diagram of the front view of the structure section of the seed box, seeder and bellows;

[0029] Figure 4 For the present invention Figure 2 Schematic diagram of the structural cross-section viewed from the front at the middle frame;

[0030] Figure 5 For the present invention Figure 4 Schematic diagram of the three-dimensional structure of the straw processing mechanism;

[0031] Figure 6 For the present invention Figure 5 A three-dimensional schematic diagram of the inner gear set, the first gear set and the second gear set;

[0032] Figure 7 It is a schematic diagram of the three-dimensional structure of the second internal gear and the second cutting knife of the present invention;

[0033] Figure 8 It is a schematic diagram of the top view of the hollow shaft, the first internal gear, the first cutting knife, the second internal gear and the second cutting knife of the present invention;

[0034] Figure 9 It is a schematic cross-sectional view of the three-dimensional structure of the hollow shaft of the present invention;

[0035] Figure 10 It is a schematic cross-sectional view of the three-dimensional structure of the seed guide tube and the dirt scraping mechanism of the present invention;

[0036] Figure 11 This is a schematic diagram of the front view of the structure cross section of the seed guide tube, scraper ring, connecting arm, cam and rotating rod of the present invention;

[0037] Figure 12 This is a schematic diagram of the three-dimensional structure of the bellows, seed guide tube, rotating rod, driven gear, half gear and connecting shaft of the present invention;

[0038] Figure 13 For the present invention Figure 4 A schematic diagram of the structure at center A;

[0039] Figure 14 It is a schematic diagram of the three-dimensional structure of the frame and control mechanism of the present invention.

[0040] In the picture:

[0041] 1. Frame; 2. Traction frame; 3. Ground wheel assembly; 4. Seeding mechanism; 41. Seed box; 42. Seeder; 43. Bellows; 44. Seed guide tube; 441. Soil-breaking wing; 442. Guide plate; 45. Bracket; 46. Frame; 461. Protective cover; 462. Shield; 47. Pressing wheel; 5. Straw handling mechanism; 51. Soil-breaking plow; 511. Rotating drum; 512. Driving rod; 513. Channel; 514. Rotating shaft; 52. Feeding plate; 521. Cutting trough; 522. Blade; 53. Hollow shaft; 531. Notch; 54. Internal gear set; 541. First internal gear; 541 1. First cutting knife; 542. Second internal gear; 5422. Second cutting knife; 55. First gear set; 551. First shaft; 552. First gear; 56. Second gear set; 561. Second shaft; 562. Second gear set; 57. Third gear; 58. Fourth gear; 6. Control mechanism; 61. Motor; 62. First transmission unit; 63. Second transmission unit; 7. Scraping mechanism; 71. Ring; 72. Scraping ring; 73. Cross bar; 74. Connecting arm; 75. Cam; 76. Rotating rod; 761. Torsion spring; 762. Driven gear; 763. Half gear; 764. Connecting shaft. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0043] Reference Figure 1-Figure 3A wheat precision and uniform sowing device based on the Beidou navigation system includes a frame 1, a traction frame 2 arranged on the frame 1, a ground wheel assembly 3 arranged along the left and right directions of the frame 1, and multiple sowing mechanisms 4 arranged on the frame 1. Each sowing mechanism 4 includes a seed box 41 installed on the frame 1, a seeder 42 arranged in the seed box 41, a corrugated pipe 43 arranged at the bottom of the seed box 41, a seed guide pipe 44 connected to the corrugated pipe 43, a bracket 45 arranged on the left and right sides of the seed guide pipe 44, and a bracket 45 fixed to the bracket 45. The frame 46 is connected to the seed guide tube 44 and the pressing wheels 47 are arranged in front and behind the frame 46, wherein a soil-breaking wing 441 is fixed to the outside of the seed guide tube 44, and a guide plate 442 is fixed to the inside of the seed guide tube 44. The guide plate 442 is used to guide the seeds, and the traction frame 2 is a freely detachable component, which is installed on the frame 1 by bolts. The traction frame 2 can be connected to a tractor or other agricultural machinery to provide overall power and traction. The ground wheel assembly 3 and the seeder 42 mentioned in this application belong to the prior art and are therefore not introduced one by one.

[0044] Reference Figure 2-Figure 9 The frame 46 is provided with a straw processing mechanism 5, which is located in front of the seed guide tube 44. The straw processing mechanism 5 includes a soil breaking plow 51 and a material receiving plate 52 fixed in sequence along the front and rear directions of the frame 46, a hollow shaft 53 rotatably arranged on the frame 46, an internal gear set 54 rotatably sleeved on the hollow shaft 53, and a first gear set 55 and a second gear set 56 rotatably arranged in the hollow shaft 53, wherein the internal gear set 54 includes multiple groups of first internal gears 541 and second internal gears 542, the first internal gears 541 and the second internal gears 542 are arranged at intervals from each other, a first cutting knife 5411 is fixed on the first internal gear 541, and a first cutting knife 5411 is fixed on the second internal gear 542. The two cutting knives 5422, the first cutting knife 5411 and the second cutting knife 5422 are designed in opposite directions, and the connecting plate 52 is provided with the same number of cutting grooves 521 as the first cutting knives 5411 and the second cutting knives 5422 and corresponding to each other. The first cutting knife 5411 and the second cutting knife 5422 are rotated in the corresponding cutting grooves 521 to achieve the cutting of straw. By cutting the straw, the situation of seeds falling on the straw can be reduced, and the contact area between the seeds and the soil can be increased, thereby improving the seed germination rate and the quality of crop growth. In addition, the surface area of the straw after cutting is increased, which helps microorganisms to decompose the straw more effectively, accelerate its conversion into soil organic matter, and improve soil fertility.

[0045] Specifically, refer to Figure 5-Figure 6The first gear set 55 includes a first shaft 551 and multiple groups of first gears 552 fixed on the first shaft 551, and the second gear set 56 includes a second shaft 561 and multiple groups of second gears 562 fixed on the second shaft 561. The hollow shaft 53 is provided with the same number of slots 531 as the first gears 552 and the second gears 562, and the same number of slots 531 correspond to each other. The first gears 552 correspond to and mesh with the first internal gear 541, and the second gears 562 correspond to and mesh with the second internal gear 542. The rotation of the first gear set 55 and the second gear set 56 can control the rotation of the first internal gear 541 and the second internal gear 542, thereby driving the first cutting knife 5411 and the second cutting knife 5422 to rotate in the corresponding cutting groove 521.

[0046] Further, refer to Figure 6 and Figure 14 The first shaft 551 and the second shaft 561 both pass through the frame 46 and are rotatably connected to the frame 46. The third gear 57 and the fourth gear 58 are respectively fixed on the first shaft 551 and the second shaft 561. The third gear 57 and the fourth gear 58 are engaged with each other. The frame 46 is provided with a control mechanism 6, which includes a motor 61. The output end of the motor 61 is connected to the second shaft 561. When the driving motor 61 controls the rotation of the second shaft 561, it can utilize the cooperation of the third gear 57 and the fourth gear 58 to control the first internal gear 541 and the second internal gear 542 to rotate in opposite directions, thereby enabling the first cutting knife 5411 and the second cutting knife 5422 to rotate in opposite directions. The reverse rotation can more effectively grasp and cut the straw, apply force to the straw from different directions, thereby improving the cutting efficiency and speed.

[0047] Reference Figure 5 In order to further improve the straw cutting effect, multiple groups of blades 522 that contact the straw are fixed on the material receiving plate 52. By utilizing the contact between the blades 522 and the straw, the straw cutting speed can be accelerated when the first cutting knife 5411 and the second cutting knife 5422 cut the straw.

[0048] During use, first, wheat seeds are put into the seed box 41. By connecting the traction frame 2 to a tractor or other agricultural machinery to provide overall power, the entire equipment moves along with the ground wheel assembly 3. At this time, the seeder 42 is controlled to start working. The seeder 42 is responsible for transporting the seeds from the seed box 41 to the corrugated pipe 43, and then discharging them into the seed guide pipe 44 through the corrugated pipe 43;

[0049] While the equipment is moving as a whole, the soil-breaking plow 51 first plows the soil. Since the soil-breaking plow 51 continuously moves forward and plows, the plowed soil mixed with straw can be transported to the receiving plate 52. At this time, by starting the motor 61, the second shaft 561 is driven by the control of the motor 61 to drive the fourth gear 58 to rotate, and the meshing between the third gear 57 and the fourth gear 58 is used to make the second shaft 561 rotate in the opposite direction. At this time, the meshing of the first gear 552 and the first internal gear 541, and the meshing of the second gear 562 and the second internal gear 542, can make the first internal gear 541 and the second internal gear 542 rotate in opposite directions, so that the first cutting knife 5411 and the second cutting knife 5422 rotate in opposite directions to cut the straw.

[0050] Further, refer to Figure 10-12 The seed guide tube 44 is provided with a scraping mechanism 7, which is used to scrape the inner wall of the seed guide tube 44 up and down. The scraping mechanism 7 includes a ring 71 provided on the inner wall of the bottom end of the seed guide tube 44, a scraping ring 72 fixed above and below the ring 71, a crossbar 73 fixed in the middle of the ring 71, a connecting arm 74 rotatably provided on the crossbar 73, a cam 75 rotatably connected to the other end of the connecting arm 74, and a rotating rod 76 fixed to the other end of the cam 75. The rings 72 are all fitted to the inner wall of the seed guide tube 44, and the rotation of the rotating rod 76 controls the connecting arm 74 to pull the ring 71 to move on the inner wall of the seed guide tube 44, so that the scraping ring 72 can scrape the inner wall of the seed guide tube 44 up and down, which has the effect of scraping off the sticky soil on the inner wall of the seed guide tube 44, and preventing the soil from sticking to the inner wall of the seed guide tube 44 and affecting the falling of the seeds, causing the seeds to be blocked by the soil stuck to the inner wall of the seed guide tube 44 when falling, and unable to contact the ground in time;

[0051] Specifically, one end of the rotating rod 76 passes through the outside of the seed guide tube 44 and is fixed with a driven gear 762. A half gear 763 is engaged with one side of the driven gear 762. The half gear 763 is rotatably arranged on the seed guide tube 44 through the connecting shaft 764. A first transmission part 62 is provided between the connecting shaft 764 and the second shaft 561. The first transmission part 62 includes a pulley and a conveyor belt. Among them, the rotating rod 76 is rotatably arranged on the seed guide tube 44. A torsion spring 761 is also provided on the rotating rod 76. The rotation of the second shaft 561 is used to control the rotation of the connecting shaft 764, the half gear 763 and the driven gear 762, thereby facilitating the control of the connecting arm 74 to pull the ring 71, so that the scraper ring 72 scrapes the inner wall of the seed guide tube 44 up and down.

[0052] When the second gear 761 is in engagement with the driven gear 762, the rotating shaft 764 is reversed again by the action of the torsion spring 761, thereby causing the cam 75 to rotate and drive the connecting arm 74 to rotate.

[0053] Further, refer to Figure 13-14 , the material receiving plate 52 is located behind the earth-breaking plowshare 51, and the material receiving plate 52 is installed obliquely. Among them, a rotating drum 511 is provided below the earth-breaking plowshare 51 through a rotating shaft 514, and a plurality of groups of driving rods 512 are fixed on the rotating drum 511 in a circumferential distribution. A channel 513 for rotating the driving rods 512 is provided on the earth-breaking plowshare 51, and support frames are provided at both ends of the rotating shaft 514, which are fixed on the frame 46. There is also a support frame between the rotating shaft 514 and the second shaft 561. The second transmission part 63 has the same structure as the first transmission part 62. As the second shaft 561 rotates, it can simultaneously control the rotating shaft 514 to drive the rotating drum 511 and the driving rod 512 to rotate. The driving rod 512 can rotate in the channel 513, and then can further transport the soil mixed with straw plowed up by the soil-breaking plow 51, so that the soil mixed with straw is conveniently delivered to the receiving plate 52, which has the function of auxiliary feeding.

[0054] During use: First, while the second shaft 561 rotates, it can also control the rotation of the rotating shaft 514 under the action of the second transmission part 63. At this time, the rotating shaft 514 drives the rotating drum 511 and the driving rod 512 to rotate, and the driving rod 512 rotates in the channel 513, thereby transporting the soil mixed with straw plowed up by the breaking plow 51 to the receiving plate 52.

[0055] In order to improve the protection of the first transmission part 62 and the second transmission part 63, refer to Figure 2 A protective cover 461 is fixed outside the frame 46 , and the protective cover 461 is used to shield the control mechanism 6 .

[0056] Among them, reference Figure 14 A shielding plate 462 is also fixed on the frame 46. The shielding plate 462 is located above the receiving plate 52 and is used to shield the straw during the cutting process to prevent it from flying.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A wheat precision and uniform sowing device based on the Beidou navigation system, comprising a frame (1), a traction frame (2) arranged on the frame (1), a ground wheel assembly (3) arranged along the left and right directions of the frame (1), and multiple groups of sowing mechanisms (4) arranged on the frame (1), each group of the sowing mechanisms (4) comprising a seed box (41) installed on the frame (1), a seeder (42) arranged in the seed box (41), a corrugated pipe (43) arranged at the bottom of the seed box (41), a seed guide pipe (44) connected to the corrugated pipe (43), a bracket (45) arranged on the left and right sides of the seed guide pipe (44), a frame (46) fixedly connected to the bracket (45), and a pressing wheel (47) arranged along the front and rear of the frame (46), characterized in that: Each group of the frames (46) is provided with a straw processing mechanism (5), and the straw processing mechanism (5) is located in front of the seed guide tube (44); The straw processing mechanism (5) comprises a soil-breaking plow (51) and a material receiving plate (52) fixed in sequence along the front-back direction of the frame (46), a hollow shaft (53) rotatably arranged on the frame (46), an internal gear set (54) rotatably sleeved on the hollow shaft (53), and a first gear set (55) and a second gear set (56) rotatably arranged in the hollow shaft (53), wherein the internal gear set (54) comprises a plurality of first internal gears (541) and a second internal gear (542), the first gear set (55) comprises a first shaft (551) and a plurality of first gears (552) fixed on the first shaft (551), and the second gear set (56) comprises a second shaft (561) and a plurality of second gears (562) fixed on the second shaft (561); A first cutting knife (5411) is fixed on the first internal gear (541), and a second cutting knife (5422) is fixed on the second internal gear (542). The first cutting knife (5411) and the second cutting knife (5422) are designed in opposite directions. The receiving plate (52) is provided with cutting grooves (521) of the same number as the first cutting knife (5411) and the second cutting knife (5422) and corresponding to each other.

2. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 1 is characterized by: The first shaft (551) and the second shaft (561) both pass through the frame (46) and are respectively fixed with a third gear (57) and a fourth gear (58), the third gear (57) and the fourth gear (58) being meshed with each other. A control mechanism (6) is provided on the frame (46), the control mechanism (6) comprising a motor (61), the output end of the motor (61) being connected to the second shaft (561); A scraping mechanism (7) is provided in the seed guide tube (44), and the scraping mechanism (7) is used to scrape the inner wall of the seed guide tube (44) up and down.

3. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 2 is characterized by: The scraping mechanism (7) comprises a circular ring (71) provided on the inner wall of the bottom end of the seed guide tube (44), scraping rings (72) fixed above and below the circular ring (71), a crossbar (73) fixed in the middle of the circular ring (71), a connecting arm (74) rotatably provided on the crossbar (73), a cam (75) rotatably connected to the other end of the connecting arm (74), and a rotating rod (76) fixed to the other end of the cam (75), wherein the circular ring (71) and the scraping ring (72) are both attached to the inner wall of the seed guide tube (44); One end of the rotating rod (76) passes through the outside of the seed guide tube (44) and is fixed with a driven gear (762). A half gear (763) is engaged with one side of the driven gear (762). The half gear (763) is rotatably arranged on the seed guide tube (44) through a connecting shaft (764). A first transmission part (62) is provided between the connecting shaft (764) and the second shaft (561).

4. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 3 is characterized by: The rotating rod (76) is rotatably arranged on the seed guide tube (44), and a torsion spring (761) is further arranged on the rotating rod (76).

5. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 1 is characterized by: The hollow shaft (53) is provided with notches (531) having the same number as the first gear (552) and the second gear (562) and corresponding one to one, wherein the first gear (552) corresponds one to one with and meshes with the first internal gear (541), and the second gear (562) corresponds one to one with and meshes with the second internal gear (542).

6. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 2, characterized in that: A rotating drum (511) is provided below the earth-breaking plowshare (51) and is rotatable via a rotating shaft (514). A plurality of groups of driving rods (512) are fixed to the rotating drum (511) in a circumferentially distributed manner. A channel (513) for the driving rods (512) to rotate is provided on the earth-breaking plowshare (51). Wherein, support frames are rotatably provided at both ends of the rotating shaft (514), and the support frames are fixed on the frame (46). A second transmission part (63) is also provided between the rotating shaft (514) and the second shaft (561).

7. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 1 is characterized by: The receiving plate (52) is also fixed with a plurality of blades (522) that come into contact with the straw.

8. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 1, characterized in that: A protective cover (461) is fixed outside the frame (46), and the protective cover (461) is used to shield the control mechanism (6).

9. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 1, characterized in that: A soil-breaking wing (441) is fixed outside the seed guide tube (44), and a material guide plate (442) is fixed inside the seed guide tube (44).

10. The wheat precision and uniform sowing equipment based on the Beidou navigation system according to claim 1, characterized in that: A shielding plate (462) is also fixed on the frame (46), and the shielding plate (462) is located above the material receiving plate (52).

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