A seeding device for a trough-type Panax notoginseng air-suction seeder

Abstract

A trough-type Panax notoginseng air-suction seeder seeding device belongs to the technical field of agricultural machinery. The invention is composed of a seeding part, a transmission part, and a frame part. The seeding part is composed of two front and rear seeding devices that perform bidirectional reciprocating motion, which suck the seeds from the seed box and blow them to the seeding port. The seeding device can be connected or disconnected with the positive and negative coarse air pressure pipes during the reciprocating rotation, thereby completing the positive and negative pressure conversion of the suction nozzle; the transmission part is driven by a motor to drive the entire seeding part to work, and the cooperation of the eccentric shaft and the linear guide rail converts the rotational motion into reciprocating translational motion, thereby driving the seeding part to reciprocate; the invention can improve the precision of Panax notoginseng sowing, and can adapt to seeds of different sizes.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a seeding device of a trough-type Panax notoginseng air-suction seeder. Background Art

[0002] Factory-based seedling cultivation of Panax notoginseng medicinal materials requires precision sowing. The spacing between rows and plants of Panax notoginseng sowing is 50mm. When sowing Panax notoginseng, the problem of filling seeds leads to repeated sowing and missed sowing, which cannot meet the agronomic requirements of precision planting of Panax notoginseng.

[0003] At present, mechanical seeding devices carry seeds on fixed baffles during seeding, which may cause seed breakage and seed jamming. This not only affects the sowing quality but also causes economic losses. However, pneumatic seeding devices have good seeding effects and are highly versatile for seed sizes.

[0004] Since the existing Panax notoginseng seedling cultivation is a large-scale factory operation, the Panax notoginseng sowing effect will directly affect the quality and yield of Panax notoginseng. The three-axis sizes of Panax notoginseng seeds sown each year are inconsistent. The current Panax notoginseng mechanical seeding device cannot meet the requirements of Panax notoginseng precision sowing. Therefore, it is particularly important to design a Panax notoginseng pneumatic seeding device for precision sowing to improve sowing efficiency. Therefore, the Panax notoginseng pneumatic seeding device will have broad application prospects for the industrialization of Panax notoginseng. Summary of the invention

[0005] The object of the present invention is to provide a seeding device for a trough-type Panax notoginseng air-suction seeder which can overcome the deficiencies of the prior art.

[0006] The present invention is composed of a seeding part A, a frame B, and a transmission part C, wherein the rear seeding device D, the seeding port assembly 8, and the front seeding device E arranged in sequence from back to front in the seeding part A are fixedly connected to a frame surrounded by a left beam 44, a rear cross bar 35, a right beam 40, and a rear beam 47 in the frame B; the bottom surface of the guide rail of the linear guide rail assembly I50 in the transmission part C is fixedly connected to the upper surface of the longitudinal rod I36 in the frame B; the bearing seat of the bearing seat assembly IV68 in the transmission part C is fixedly connected to the upper surface of the front end of the longitudinal rod II38 in the frame B; the bearing seat of the bearing seat assembly III66 in the transmission part C is fixedly connected to the upper surface of the front end of the longitudinal rod III45 in the frame B; the transmission The bottom surface of the linear guide assembly II 63 in part C is fixedly connected to the upper surface of the longitudinal rod IV 46 in the frame B; the bearing seats of the bearing seat assembly I 54 and the bearing seat assembly II 59 in the transmission part C are fixedly connected to the upper rear portion of the support plate 39 in the frame B; the motor 57 in the transmission part C is fixedly connected to the upper front portion of the support plate 39 in the frame B; the rear end of the rocker I 48 in the transmission part C is hinged to the right seeding connecting shaft 12b of the front right rocker arm I 14 of the front seeding device E in the seeding part A; the rear end of the rocker II 65 in the transmission part C is hinged to the left seeding connecting shaft 12a of the front left rocker arm I 13 of the front seeding device E in the seeding part A.

[0007] The seeding part A is composed of a rear seeding device D, a front seeding device E, a seeding port assembly 8 and a pair of support rods 9. The seeding port assembly 8 is composed of two rows of 28 seeding ports, and the seeding port assembly 8 is supported by a pair of support rods 9; the rear seeding device D and the front seeding device E have the same structure and opposite directions, wherein the rear seeding device D is composed of an air pressure tube assembly 1, a left rear air pressure tube 2, a rear left rocker arm Ⅰ3, a rear left rocker arm Ⅱ4, a seeding drive shaft Ⅰ5, a seed box 6, a drive rod 7, a left front air pressure tube 15, a rear left vertical plate Ⅰ1 6. Rear left vertical plate II 17, thick air pressure pipe I 18, thick air pressure pipe II 19, right front air pressure pipe 20, rear right rocker arm I 21, rear right vertical plate I 22, rear right vertical plate II 23, rear right rocker arm II 24, right rear air pressure pipe 25, flat plate assembly 26, air chamber 27, thin air pressure pipe 28, seed taking pipe 29, suction nozzle 30, left bolt I 31a, left bolt II 31b, left bearing I 32a, left bearing II 32b, right bearing I 33a, right bearing II 33b, right bolt I 34a, right bolt II 34b assembly The seeding drive shaft Ⅰ5 on the left side of the rear left rocker arm Ⅰ3 and the seeding drive shaft Ⅱ10 on the left side of the front left rocker arm Ⅱ11 are connected through the driving rod 7; the rear left rocker arm Ⅰ3, the rear left rocker arm Ⅱ4, the rear right rocker arm Ⅰ21 and the rear right rocker arm Ⅱ24 have the same structure, are hollow cubes, and the upper end of each rocker arm is provided with a bolt; the lower end of the left rear air pressure pipe 2 is connected to the upper rear part of the rear left rocker arm Ⅱ4, and the upper end of the left rear air pressure pipe 2 is connected to the left end of the air chamber 27 at the rear; the lower end of the left front air pressure pipe 15 is connected to the upper front part of the rear left rocker arm Ⅰ3, and the left The upper end of the front air pressure tube 15 is connected to the front left end of the air chamber 27; the lower end of the right front air pressure tube 20 is connected to the upper front part of the rear right rocker arm Ⅰ21, and the upper end of the right front air pressure tube 20 is connected to the front right end of the air chamber 27; the lower end of the right rear air pressure tube 25 is connected to the upper rear part of the rear right rocker arm Ⅱ24, and the upper end of the right rear air pressure tube 25 is connected to the rear right end of the air chamber 27; the air pressure tube assembly 1 is composed of 28 air pressure tube groups, each of which is composed of a thin air pressure tube 28, a seed taking tube 29 and a suction nozzle 30 fixed in sequence, and the suction nozzle 30 is facing downward.

[0008] The 28 air pressure tubes of the air pressure tube group in the air pressure tube assembly 1 are evenly distributed and fixed in front of the air chamber 27, and the thin air pressure tubes are connected to the air chamber 27; the air chamber 27 is fixed to the upper surface of the flat plate 26a in the flat plate assembly 26. The flat plate assembly 26 is composed of a flat plate 26a, a hanging plate Ⅰ26b, a hanging plate Ⅱ26c, a hanging plate Ⅲ26d and a hanging plate Ⅳ26e. The hanging plates Ⅰ26b, Ⅱ26c, Ⅲ26d and Ⅳ26e are all provided with through holes. The hanging plates Ⅰ26b and Ⅱ26c are fixed to the lower surface of the flat plate 26a near the left end, and the hanging plates Ⅲ26d and Ⅳ26e are fixed to the lower surface of the flat plate 26a near the right end; the air pressure tube Ⅰ18 and the thick air pressure tube Ⅱ19 are arranged front and back, and the two ends of the thick air pressure tube Ⅰ18 are connected by the rear left vertical plate Ⅰ1 6 and the rear right vertical plate Ⅰ22, the left end of the rough air pressure pipe Ⅰ18 is movably connected to the lower end of the rear left rocker arm Ⅰ3 through the left bearing Ⅰ32a, and the right end of the rough air pressure pipe Ⅰ18 is movably connected to the lower end of the rear right rocker arm Ⅰ21 through the right bearing Ⅰ33a; both ends of the rough air pressure pipe Ⅱ19 are supported by the rear left vertical plate Ⅱ17 and the rear right vertical plate Ⅱ23, the left end of the rough air pressure pipe Ⅱ19 is movably connected to the lower end of the rear left rocker arm Ⅱ4 through the left bearing Ⅱ32b, and the right end of the rough air pressure pipe Ⅱ19 is movably connected to the lower end of the rear right rocker arm Ⅱ24 through the right bearing Ⅱ33b.

[0009] The upper end of the rear left rocker arm Ⅰ3 is hinged to the hanging plate Ⅰ26b of the flat plate assembly 26 via the left bolt Ⅰ31a; the upper end of the rear left rocker arm Ⅱ4 is hinged to the hanging plate Ⅱ26c of the flat plate assembly 26 via the left bolt Ⅱ31b; the upper end of the rear right rocker arm Ⅰ21 is hinged to the hanging plate Ⅳ26e of the flat plate assembly 26 via the right bolt Ⅰ34a; the upper end of the rear right rocker arm Ⅱ24 is hinged to the hanging plate Ⅲ26d of the flat plate assembly 26 via the right bolt Ⅱ34b; the rear seeding device D, the seeding port assembly 8 and the front seeding device E are arranged in sequence from back to front, and the 28 suction nozzles of the air pressure tube assembly in the rear seeding device D and the front seeding device E are respectively aligned with the two rows of 28 seeding ports of the seeding port assembly 8.

[0010] The frame B is composed of a rear crossbar 35, a longitudinal bar I 36, a front crossbar 37, a longitudinal bar II 38, a support plate 39, a right beam 40, a front beam 41, a long longitudinal bar I 42, a long longitudinal bar II 43, a left beam 44, a longitudinal bar III 45, a longitudinal bar IV 46 and a rear beam 47, wherein the front beam 41, the left beam 44, the rear beam 47 and the right beam 40 are fixed end to end to form a rectangular structure; the longitudinal bars I 36, the longitudinal bars II 38, the longitudinal bars III 45 and the longitudinal bars IV 46 are evenly distributed and fixed to the rear crossbar The upper part of the rear cross bar 35 and the front cross bar 37 is in a mesh-shaped structure; the left ends of the rear cross bar 35 and the front cross bar 37 are fixedly connected to the right side of the middle part of the left beam 44, and the right ends of the rear cross bar 35 and the front cross bar 37 are fixedly connected to the left side of the middle part of the right beam 40; the support plate 39 is fixedly connected to the upper rear part of the long longitudinal bars Ⅰ42 and the long longitudinal bars Ⅱ43, the front ends of the long longitudinal bars Ⅰ42 and the long longitudinal bars Ⅱ43 are fixedly connected to the rear of the right part of the front beam 41, and the rear ends of the long longitudinal bars Ⅰ42 and the long longitudinal bars Ⅱ43 are fixedly connected to the front of the right part of the front cross bar 37.

[0011] The transmission part C is composed of a rocker arm Ⅰ48, a connecting rod Ⅰ49, a linear guide assembly Ⅰ50, a connecting rod Ⅱ51, an eccentric shaft 52, a gear Ⅰ53, a bearing seat assembly Ⅰ54, a chain Ⅰ55, a gear Ⅱ56, a motor 57, a transmission shaft 58, a bearing seat assembly Ⅱ59, a gear Ⅲ60, a chain Ⅱ61, a connecting rod Ⅲ62, a linear guide assembly Ⅱ63, a connecting rod Ⅳ64, a rocker arm Ⅱ65, a bearing seat assembly Ⅲ66, a gear Ⅳ67, and a bearing seat assembly Ⅳ68, wherein the bearing seat assembly Ⅰ54, the bearing seat assembly Ⅱ59, the bearing seat assembly Ⅲ66 and the bearing seat assembly Ⅳ68 are all composed of a bearing seat and a bearing, and the outer ring of the bearing is fixedly connected to the bearing seat hole; the linear guide assembly Ⅰ50 and the linear guide assembly Ⅱ63 are both composed of a guide rail and a slider, and the guide rail is arranged in the front and rear directions.

[0012] The transmission shaft 58 and the eccentric shaft 52 are arranged in parallel front and back; the right end of the transmission shaft 58 is interference connected with the inner ring of the bearing of the bearing seat assembly I54, and the left end of the transmission shaft 58 is interference connected with the inner ring of the bearing of the bearing seat assembly II59. The left end of the transmission shaft 58 is fixedly connected to the gear III60; the right end of the transmission shaft 58 is fixedly connected to the gear I53; the gear II56 is fixedly connected to the output end of the motor 57, and the gear I53 is chain-connected with the gear II 56 via the chain I55.

[0013] The middle part near the right end of the eccentric shaft 52 is interference connected with the bearing inner ring of the bearing seat assembly IV68, and the middle part of the eccentric shaft 52 and the left side of the bearing seat assembly IV68 are fixedly connected with the gear IV67; the middle part near the left end of the eccentric shaft 52 is interference connected with the bearing inner ring of the bearing seat assembly III66; the gear III60 is chain-connected with the gear IV67 via the chain II 61; the right end of the eccentric shaft 52 is movably connected to the left side of the slider of the linear guide assembly I 50 via the connecting rod II 51, the left end of the connecting rod I 49 is fixedly connected to the upper surface of the slider of the linear guide assembly I 50, and the right end of the connecting rod I49 is movably connected to the front end of the rocker I 48; the left end of the eccentric shaft 52 is movably connected to the right side of the slider of the linear guide assembly II 63 via the connecting rod III62, the right end of the connecting rod IV64 is fixedly connected to the upper surface of the slider of the linear guide assembly II 63, and the left end of the connecting rod IV64 is movably connected to the front end of the rocker II 65.

[0014] The motion trajectory equation of the nozzle head in the front seeding device E is:

[0015] y1=1.30976×10 -8 x1 3 -0.00286x1 2 +0.41816x1+125.72765x1∈(-90.1, 237);

[0016] Wherein: y1 is the ordinate of the front left rocker arm I13 and the front right rocker arm I14 in the front seeding device E, and x1 is the abscissa of the front left rocker arm I13 and the front right rocker arm I14 in the front seeding device E;

[0017] The motion trajectory equation of the suction nozzle 30 head in the rear seeding device D is:

[0018] y2=-6.44847×10 -13 x2 3 -0.00286x2 2 -0.41848x2+125.74781x2∈(-237, 90.1);

[0019] Wherein: y2 is the ordinate of the rear left rocker arm 13 and the rear right rocker arm 121 in the rear seeding device D, and x2 is the abscissa of the rear left rocker arm 13 and the rear right rocker arm 121 in the rear seeding device D;

[0020] The relationship between the angles between the front left rocker arm I13, the front right rocker arm I14 and the frame and the positions of the linear guide assembly I 50 and the linear guide assembly II63 is:

[0021] θ=4.555663×10 -5 x3 3 -0.03362x3 2 +9.06006x3-772.8299x3∈(183,292);

[0022] Wherein: θ is the angle between the front left rocker arm I13, the front right rocker arm I14 and the frame, and x3 is the horizontal coordinate of the linear guide assembly I 50 and the linear guide assembly II63.

[0023] In the rear seeding device D, the rough air pressure pipe I18 is a negative pressure pipe, and the rough air pressure pipe II 19 is a positive pressure pipe.

[0024] The beneficial effects of the present invention are:

[0025] 1. It can realize the precision sowing requirements of single-seed Panax notoginseng.

[0026] 2. The suction nozzle can be replaced to achieve adaptability to seeds of different sizes.

[0027] 3. It can reduce the breakage of seeds caused by squeezing during the sowing process.

[0028] 4. It can speed up the sowing speed of Panax notoginseng. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is an axonometric view of the seeding device of a trough-type Panax notoginseng pneumatic seeder;

[0030] Figure 2 It is a top view of the seeding device of the trough-type Panax notoginseng air-suction seeder;

[0031] Figure 3 This is the axonometric drawing of the planting part A;

[0032] Figure 4 It is an axonometric view of the rear seeding device D;

[0033] Figure 5 It is a front view of the rear seeding device D;

[0034] Figure 6 for Figure 5 The enlarged view indicated by a in the figure;

[0035] Figure 7 for Figure 5 The enlarged view indicated by b in the figure;

[0036] Figure 8 is a bottom view of the plate assembly 26;

[0037] Fig. 9 It is a structural schematic diagram of rack B;

[0038] Fig.10 It is a structural schematic diagram of the transmission part C;

[0039] Fig.11 It is the axonometric view of the transmission part C;

[0040] Fig.12 This is the coordinate diagram of the front part of the planting;

[0041] Fig.13 This is the coordinate diagram of the rear part of the planting;

[0042] Fig.14 It is a schematic diagram of negative pressure opening;

[0043] Fig.15 It is a schematic diagram of positive pressure opening;

[0044] Fig.16 It is the valve timing diagram;

[0045] Among them: A. Seeding part B. Frame C. Transmission part D. Rear seeding device E. Front seeding device 1. Air pressure pipe assembly 2. Left rear air pressure pipe 3. Rear left rocker arm Ⅰ 4. Rear left rocker arm Ⅱ 5. Seeding drive shaft Ⅰ 6. Seed box 7. Drive rod 8. Seeding port assembly 9. Support rod pair 10. Seeding drive shaft Ⅱ 11. Front left rocker arm Ⅱ 12a. Left seeding connecting shaft 12b. Right seeding connecting shaft 13. Front left rocker arm Ⅰ 14. Front right rocker arm Ⅰ 15. Left front air pressure pipe 16. Rear left vertical board Ⅰ 17. Rear left vertical board Ⅱ 18. Rough air pressure pipe Ⅰ 19. Rough air pressure pipe Ⅱ 20. Right front air pressure pipe 21. Rear right rocker arm Ⅰ 22. Rear right vertical board Ⅰ 23. Rear right vertical board Ⅱ 24. Rear right rocker arm Ⅱ 25. Right rear air pressure tube 26. Flat plate assembly 26a. Flat plate 26b. Hanging plate Ⅰ 26c. Hanging plate Ⅱ 26d. Hanging plate Ⅲ 26e. Hanging plate Ⅳ 27. Air chamber 28. Thin air pressure tube 29. Seed taking tube 30. Suction nozzle 31a. Left bolt Ⅰ 31b. Left bolt Ⅱ 32a. Left bearing Ⅰ 32b. Left bearing Ⅱ 33a. Right bearing Ⅰ 33b. Right bearing Ⅱ 34a. Right bolt Ⅰ 34b. Right bolt Ⅱ 35. Rear cross bar 36. Longitudinal bar Ⅰ 37. Front cross bar 38. Longitudinal bar Ⅱ 39 Support plate 40. Right beam 41. Front beam 42. Long longitudinal bar Ⅰ 43. Long longitudinal bar Ⅱ 44. Left beam 45. Longitudinal bar Ⅲ 46. Longitudinal bar Ⅳ 47. Rear beam 48. Rocker Ⅰ 49. Connecting rod Ⅰ 50. Linear guide assembly Ⅰ 51. Connecting rod Ⅱ 52. Eccentric shaft 53. Gear I 54. Bearing seat assembly I 55. Chain I 56. Gear II 57. Motor 58. Transmission shaft 59. Bearing seat assembly II 60. Gear III 61. Chain II 62. Connecting rod III 63. Linear guide assembly II 64. Connecting rod IV 65. Rocker II 66. Bearing seat assembly III 67. Gear IV 68. Bearing seat assembly IV. DETAILED DESCRIPTION

[0046] like Figure 1 and Figure 2 As shown, the present invention consists of a seeding part A, a frame B, and a transmission part C, wherein the rear seeding device D, the seeding port assembly 8, and the front seeding device E arranged in sequence from back to front in the seeding part A are fixedly connected to a frame surrounded by a left beam 44, a rear cross bar 35, a right beam 40, and a rear beam 47 in the frame B.

[0047] The bottom surface of the guide rail of the linear guide rail assembly Ⅰ50 in the transmission part C is fixed to the upper surface of the longitudinal rod Ⅰ36 in the frame B; the bearing seat of the bearing seat assembly Ⅳ68 in the transmission part C is fixed to the upper surface of the front end of the longitudinal rod Ⅱ38 in the frame B; the bearing seat of the bearing seat assembly Ⅲ66 in the transmission part C is fixed to the upper surface of the front end of the longitudinal rod Ⅲ45 in the frame B; the bottom surface of the guide rail of the linear guide rail assembly Ⅱ63 in the transmission part C is fixed to the upper surface of the longitudinal rod Ⅳ46 in the frame B; the bearing seat assembly Ⅰ5 in the transmission part C is fixed to the upper surface of the longitudinal rod Ⅱ38 in the frame B; the bearing seat of the bearing seat assembly Ⅲ66 in the transmission part C is fixed to the upper surface of the front end of the longitudinal rod Ⅲ45 in the frame B; the bottom surface of the guide rail of the linear guide rail assembly Ⅱ63 in the transmission part C is fixed to the upper surface of the longitudinal rod Ⅳ46 in the frame B; the bearing seat assembly Ⅰ5 4 and the bearing seat of the bearing seat assembly II 59 are fixedly connected to the rear upper part of the support plate 39 in the frame B; the motor 57 in the transmission part C is fixedly connected to the front upper part of the support plate 39 in the frame B; the rear end of the rocker I 48 in the transmission part C is hinged to the right seeding connecting shaft 12b of the front right rocker arm I 14 of the front seeding device E in the seeding part A; the rear end of the rocker II 65 in the transmission part C is hinged to the left seeding connecting shaft 12a of the front left rocker arm I 13 of the front seeding device E in the seeding part A.

[0048] like Figures 3 to 8 As shown, the seeding part A is composed of a rear seeding device D, a front seeding device E, a seeding port assembly 8 and a pair of support rods 9. The seeding port assembly 8 is composed of two rows of 28 seeding ports, and the seeding port assembly 8 is supported by the pair of support rods 9; the rear seeding device D and the front seeding device E have the same structure and opposite directions, wherein the rear seeding device D is composed of an air pressure pipe assembly 1, a left rear air pressure pipe 2, a rear left rocker arm Ⅰ3, a rear left rocker arm Ⅱ4, a seeding drive shaft Ⅰ5, a seed box 6, a drive rod 7, a left front air pressure pipe 15, a rear left vertical plate Ⅰ16, a rear left vertical plate Ⅱ17, a rough air pressure pipe Ⅰ18, a rough air pressure pipe Ⅱ19, a right front air pressure pipe 20, a rear right rocker arm Ⅰ21, a rear right vertical plate Ⅰ22, It consists of a rear right vertical plate II 23, a rear right rocker arm II 24, a right rear air pressure tube 25, a flat plate assembly 26, an air chamber 27, a thin air pressure tube 28, a seed taking tube 29, a suction nozzle 30, a left bolt I 31a, a left bolt II 31b, a left bearing I 32a, a left bearing II 32b, a right bearing I 33a, a right bearing II 33b, a right bolt I 34a, and a right bolt II 34b, wherein the seeding drive shaft I5 on the left side of the rear left rocker arm I 3 and the seeding drive shaft II 10 on the left side of the front left rocker arm II 11 are connected via a drive rod 7; the rear left rocker arm I 3, the rear left rocker arm II 4, the rear right rocker arm I 21 and the rear right rocker arm II 24 have the same structure, are all hollow cubes, and bolts are provided at the upper end of each rocker arm.

[0049] The lower end of the left rear air pressure pipe 2 is connected to the upper rear part of the rear left rocker arm II 4, and the upper end of the left rear air pressure pipe 2 is connected to the left end of the air chamber 27 at the rear; the lower end of the left front air pressure pipe 15 is connected to the upper front part of the rear left rocker arm I 3, and the upper end of the left front air pressure pipe 15 is connected to the left end of the air chamber 27 at the front; the lower end of the right front air pressure pipe 20 is connected to the upper front part of the rear right rocker arm I 21, and the upper end of the right front air pressure pipe 20 is connected to the right end of the air chamber 27 at the front; the lower end of the right rear air pressure pipe 25 is connected to the upper front part of the rear right rocker arm I 21, and the upper end of the right front air pressure pipe 20 is connected to the right end of the air chamber 27 at the front; The end is connected with the upper rear part of the rear right rocker arm II 24, and the upper end of the right rear air pressure tube 25 is connected with the right end of the air chamber 27 at the rear; the air pressure tube assembly 1 is composed of 27 air pressure tube groups, each of which is composed of a thin air pressure tube 28, a seed taking tube 29 and a suction nozzle 30 fixed in sequence, and the suction nozzle 30 faces downward; the 28 air pressure tubes of the air pressure tube group in the air pressure tube assembly 1 are evenly distributed and fixed in front of the air chamber 27, and the thin air pressure tubes are connected to the air chamber 27.

[0050] The air chamber 27 is fixedly connected to the upper surface of the flat plate 26a in the flat plate assembly 26; the flat plate assembly 26 is composed of the flat plate 26a, the hanging plate I 26b, the hanging plate II 26c, the hanging plate III 26d and the hanging plate IV 26e, and the hanging plates I 26b, II 26c, III 26d and IV 26e are all provided with through holes, the hanging plates I 26b and II 26c are fixedly connected to the lower surface of the flat plate 26a near the left end, and the hanging plates III 26d and IV 26e are fixedly connected to the lower surface of the flat plate 26a near the right end; the air pressure pipe I 18 and the rough air pressure pipe II 19 are arranged front and back, and the rough air pressure pipe Both ends of Ⅰ18 are supported by the rear left vertical plate Ⅰ16 and the rear right vertical plate Ⅰ22, the left end of the rough air pressure pipe Ⅰ18 is movably connected to the lower end of the rear left rocker arm Ⅰ3 via the left bearing Ⅰ32a, and the right end of the rough air pressure pipe Ⅰ18 is movably connected to the lower end of the rear right rocker arm Ⅰ21 via the right bearing Ⅰ33a; both ends of the rough air pressure pipe Ⅱ19 are supported by the rear left vertical plate Ⅱ17 and the rear right vertical plate Ⅱ23, the left end of the rough air pressure pipe Ⅱ19 is movably connected to the lower end of the rear left rocker arm Ⅱ4 via the left bearing Ⅱ32b, and the right end of the rough air pressure pipe Ⅱ19 is movably connected to the lower end of the rear right rocker arm Ⅱ24 via the right bearing Ⅱ33b.

[0051] The upper end of the rear left rocker arm Ⅰ3 is hinged to the hanging plate Ⅰ26b of the flat plate assembly 26 via the left bolt Ⅰ31a; the upper end of the rear left rocker arm Ⅱ4 is hinged to the hanging plate Ⅱ26c of the flat plate assembly 26 via the left bolt Ⅱ31b; the upper end of the rear right rocker arm Ⅰ21 is hinged to the hanging plate Ⅳ26e of the flat plate assembly 26 via the right bolt Ⅰ34a; the upper end of the rear right rocker arm Ⅱ24 is hinged to the hanging plate Ⅲ26d of the flat plate assembly 26 via the right bolt Ⅱ34b; the rear seeding device D, the seeding port assembly 8 and the front seeding device E are arranged in sequence from back to front, and the 28 suction nozzles of the air pressure tube assembly in the rear seeding device D and the front seeding device E are respectively aligned with the two rows of 28 seeding ports of the seeding port assembly 8.

[0052] The rear seeding device D, the seeding port assembly 8 and the front seeding device E are arranged in sequence from back to front, and the 28 suction nozzles of the air pressure tube assembly in the rear seeding device D and the front seeding device E are respectively aligned with the two rows of 28 seeding ports in the seeding port assembly 8.

[0053] The rear left rocker arm I3, the rear left rocker arm II4, the rear right rocker arm I21, the rear right rocker arm II24, and the flat plate assembly 26 together form a parallel four-bar mechanism. The flat plate assembly 26 is always parallel to the ground during operation.

[0054] like Fig. 9 As shown, the frame B is composed of a rear crossbar 35, a longitudinal bar I 36, a front crossbar 37, a longitudinal bar II 38, a support plate 39, a right beam 40, a front beam 41, a long longitudinal bar I 42, a long longitudinal bar II 43, a left beam 44, a longitudinal bar III 45, a longitudinal bar IV 46 and a rear beam 47, wherein the front beam 41, the left beam 44, the rear beam 47 and the right beam 40 are fixed end to end to form a rectangular structure; the longitudinal bars I 36, the longitudinal bars II 38, the longitudinal bars III 45 and the longitudinal bars IV 46 are evenly distributed and fixed on the upper surface of the rear crossbar 35 and the front crossbar 37 to form a mesh-shaped structure; the left ends of the rear crossbar 35 and the front crossbar 37 are fixed to the right side of the middle part of the left beam 44, and the right ends of the rear crossbar 35 and the front crossbar 37 are fixed to the left side of the middle part of the right beam 40; the support plate 39 is fixed to the upper surface of the rear of the long longitudinal bars I 42 and the long longitudinal bars II 43, and the long longitudinal bars I The front ends of the long longitudinal bars 42 and II43 are fixedly connected to the rear of the right portion of the front beam 41, and the rear ends of the long longitudinal bars I 42 and II 43 are fixedly connected to the front of the right portion of the front cross bar 37.

[0055] like Fig.10 and Fig.11 As shown, the transmission part C is composed of a rocker I 48, a connecting rod I 49, a linear guide assembly I 50, a connecting rod II 51, an eccentric shaft 52, a gear I 53, a bearing seat assembly I 54, a chain I 55, a gear II 56, a motor 57, a transmission shaft 58, a bearing seat assembly II 59, a gear III60, a chain II 61, a connecting rod III62, a linear guide assembly II 63, a connecting rod IV64, a rocker II 65, a bearing seat assembly III66, a gear IV67, and a bearing seat assembly IV68, wherein the bearing seat assembly I 54, the bearing seat assembly II 59, the bearing seat assembly III66 and the bearing seat assembly IV68 are all composed of a bearing seat and a bearing, and the outer ring of the bearing is fixedly connected to the bearing seat hole; the linear guide assembly I 50 and the linear guide assembly II 63 are both composed of a guide rail and a slider, and the guide rail is arranged in the front and rear directions.

[0056] The transmission shaft 58 and the eccentric shaft 52 are arranged in parallel front and back; the right end of the transmission shaft 58 is interference connected with the inner ring of the bearing of the bearing seat assembly I54, and the left end of the transmission shaft 58 is interference connected with the inner ring of the bearing of the bearing seat assembly II59; the left end of the transmission shaft 58 is fixedly connected to the gear III60; the right end of the transmission shaft 58 is fixedly connected to the gear I53.

[0057] Gear II56 is fixedly connected to the output end of the motor 57, and gear I53 is chain-connected with gear II56 via chain I55; the middle part near the right end of the eccentric shaft 52 is interference-connected with the inner ring of the bearing of the bearing seat assembly IV68, and the middle part of the eccentric shaft 52 and the left side of the bearing seat assembly IV68 are fixedly connected with gear IV67; the middle part near the left end of the eccentric shaft 52 is interference-connected with the inner ring of the bearing of the bearing seat assembly III66; gear III60 is chain-connected with gear IV67 via chain II61; the right end of the eccentric shaft 52 is movably connected to the left side of the slider of the linear guide assembly I50 via connecting rod II51, the left end of the connecting rod I49 is fixedly connected to the top of the slider of the linear guide assembly I50, and the right end of the connecting rod I49 is fixedly connected to the rocker I 48 front end movably connected; the left end of the eccentric shaft 52 is movably connected to the right side of the slider of the linear guide assembly II63 through the connecting rod III62, the right end of the connecting rod IV64 is fixedly connected to the top of the slider of the linear guide assembly II63, and the left end of the connecting rod IV64 is movably connected to the front end of the rocker II 65.

[0058] like Fig.12 and Fig.13 The motion trajectory equation of the nozzle head in the front seeding device E is:

[0059] y1=1.30976×10 -8 x1 3 -0.00286x1 2 +0.41816x1+125.72765x1∈(-90.1, 237);

[0060] Wherein: y1 is the ordinate of the front left rocker arm I13 and the front right rocker arm I14 in the front seeding device E, and x1 is the abscissa of the front left rocker arm I13 and the front right rocker arm I14 in the front seeding device E;

[0061] The motion trajectory equation of the suction nozzle 30 head in the rear seeding device D is:

[0062] y2=-6.44847×10 -13 x2 3 -0.00286x2 2 -0.41848x2+125.74781x2∈(-237, 90.1);

[0063] Wherein: y2 is the ordinate of the rear left rocker arm I3 and the rear right rocker arm I21 in the rear seeding device D, and x2 is the abscissa of the rear left rocker arm I3 and the rear right rocker arm I21 in the rear seeding device D;

[0064] The relationship between the angles between the front left rocker arm I13, the front right rocker arm I14 and the frame and the positions of the linear guide assembly I50 and the linear guide assembly II63 is:

[0065] θ=4.555663×10 -5 x3 3 -0.03362x3 2 +9.06006x3-772.8299x3∈(183,292);

[0066] Wherein: θ is the angle between the front left rocker arm I13, the front right rocker arm I14 and the frame, and x3 is the horizontal coordinate of the linear guide assembly I50 and the linear guide assembly II63.

[0067] like Fig.10 As shown, in the transmission part C, the transmission ratio of gear I53 and gear II56 is Gear III60 and gear I53 have the same number of teeth, and gear III60 and gear IV67 have the same gear ratio. The transmission ratio of gear II56 and gear IV67 is

[0068] like Figures 14 to 16 As shown, in the rear seeding device D, the coarse air pressure tube I18 is a negative pressure tube, the coarse air pressure tube II19 is a positive pressure tube, the coarse air pressure tube I18 and the left and right sides of the coarse air pressure tube II19 are located on the inner side of the bearing and the end surface of the rocker arm. The openings on both ends of the coarse air pressure tube I18 are 84.1°, and the opening of the air pressure tube II19 is 9.5°. Each reciprocating rocker arm inner ring has an opening with a width of 4 mm.

[0069] by Figure 3The working principle of the seed taking mechanism A is illustrated. The seed taking mechanism A is composed of a rear seed taking device D and a front seed taking device E. The front seed taking device E is composed of a seed throwing part A, a rear seed throwing device E, a rear left rocker arm I3, a rear left rocker arm II4, a rear right rocker arm I21, a rear right rocker arm II 24 and a flat plate assembly 26 to form a parallel four-bar mechanism. The front seed throwing device E has the same structure as the rear seed throwing device D but in opposite directions. When the air pressure pipe assembly 1 of the rear seeding device D rotates to a certain angle away from the seed box 6, the inner circular openings at the lower parts of the rear left rocker arm I3 and the rear right rocker arm I21 are connected to the thick air pressure pipe 18, which is a negative pressure pipe. At this time, the interiors of the rear left rocker arm I3 and the rear right rocker arm I21 are both negative pressure, and the negative pressure is transmitted to the air chamber 27 through the left front air pressure pipe 15 and the right front air pressure pipe 20. The air chamber 27 is connected to the air pressure pipe assembly 1 to transmit the negative pressure to the suction nozzle. When the suction nozzle contacts the seeds in the seed box, the seeding is completed. After the seeding is completed, the rear seeding device D returns to the upper part of the seeding pipe, and the inner circular openings at the lower parts of the rear left rocker arm II 4 and the rear right rocker arm II 24 are connected to the thick air pressure pipe 19, which is a positive pressure pipe. Therefore, the air pressure pipe assembly 1 is positive pressure at this time to blow the seeds into the seeding port assembly 8 to complete the seeding action. The front seeding device E also has the same working process.

Claims

1. A trough-type Panax notoginseng air-suction seeder seeding device, characterized in that: The invention is composed of a seeding part (A), a frame (B), and a transmission part (C), wherein the seeding part (A) is composed of a rear seeding device (D), a front seeding device (E), a seeding port assembly (8), and a pair of support rods (9), wherein the seeding port assembly (8) is composed of two rows of 28 seeding ports, and the seeding port assembly (8) is supported by the pair of support rods (9); the rear seeding device (D) and the front seeding device (E) have the same structure and opposite directions, wherein the rear seeding device (D) is composed of an air pressure pipe assembly (1), a left rear air pressure pipe (2), a rear left rocker arm I (3), a rear left rocker arm II (4), a seeding drive shaft I (5), a seed box (6), a drive rod (7), a left front air pressure pipe (15), a rear left vertical plate Ⅰ (16), rear left vertical plate Ⅱ (17), thick air pressure pipe Ⅰ (18), thick air pressure pipe Ⅱ (19), right front air pressure pipe (20), rear right rocker arm Ⅰ (21), rear right vertical plate Ⅰ (22), rear right vertical plate Ⅱ (23), rear right rocker arm Ⅱ (24), right rear air pressure pipe (25), flat plate assembly (26), air chamber (27), thin air pressure pipe (28), seed taking pipe (29), suction nozzle (30), left bolt Ⅰ (31a), left bolt Ⅱ (31b), left bearing Ⅰ (32a), left bearing Ⅱ (32b), right bearing Ⅰ (33a), right bearing Ⅱ (33b), right bolt Ⅰ (34a), right bolt Ⅱ (34b), wherein the rear left rocker arm Ⅰ (3) is left The sowing drive shaft I (5) on the left side of the front left rocker arm II (11) is connected to the sowing drive shaft II (10) on the left side of the front left rocker arm II (11) via a driving rod (7); the rear left rocker arm I (3), the rear left rocker arm II (4), the rear right rocker arm I (21) and the rear right rocker arm II (24) have the same structure, are hollow cubes, and the upper end of each rocker arm is provided with a bolt; the lower end of the left rear air pressure pipe (2) is connected to the upper rear part of the rear left rocker arm II (4), and the upper end of the left rear air pressure pipe (2) is connected to the left end of the air chamber (27) at the rear; the lower end of the left front air pressure pipe (15) is connected to the upper front part of the rear left rocker arm I (3), and the upper end of the left front air pressure pipe (15) is connected to the left end of the air chamber (27) at the front; the lower end of the right front air pressure pipe (20) is connected to the front part of the rear right rocker arm I (21) The upper part of the right front air pressure tube (20) is connected to the front right end of the air chamber (27); the lower end of the right rear air pressure tube (25) is connected to the upper part of the rear right rocker arm II (24), and the upper end of the right rear air pressure tube (25) is connected to the rear right end of the air chamber (27); the air pressure tube assembly (1) is composed of 28 air pressure tube groups, wherein each air pressure tube group is formed by sequentially fixing a thin air pressure tube (28), a seed taking tube (29) and a suction nozzle (30), and the suction nozzle (30) faces downward; the 28 air pressure tubes of the air pressure tube group in the air pressure tube assembly (1) are evenly distributed and fixedly connected to the front of the air chamber (27), and the thin air pressure tube is connected to the air chamber (27); the air chamber (27) is fixedly connected to the upper surface of the flat plate (26a) in the flat plate assembly (26);The plate assembly (26) is composed of a plate (26a), a hanging plate I (26b), a hanging plate II (26c), a hanging plate III (26d) and a hanging plate IV (26e). The hanging plates I (26b), II (26c), III (26d) and IV (26e) are all provided with through holes. The hanging plates I (26b) and II (26c) are fixedly connected to the lower side of the plate (26a) near the left end, and the hanging plates III (26d) and IV (26e) are fixedly connected to the lower side of the plate (26a) near the right end. The coarse air pressure pipe Ⅰ (18) and the coarse air pressure pipe Ⅱ (19) are arranged front and back, and the two ends of the coarse air pressure pipe Ⅰ (18) are supported by the rear left vertical plate Ⅰ (16) and the rear right vertical plate Ⅰ (22). The left end of the coarse air pressure pipe Ⅰ (18) is movably connected to the lower end of the rear left rocker arm Ⅰ (3) through the left bearing Ⅰ (32a), and the right end of the coarse air pressure pipe Ⅰ (18) is movably connected to the lower end of the rear right rocker arm Ⅰ (21) through the right bearing Ⅰ (33a); the two ends of the coarse air pressure pipe Ⅱ (19) are supported by the rear left vertical plate Ⅱ (17) and the rear right vertical plate Ⅱ (23). The left end of the pressure pipe II (19) is movably connected to the lower end of the rear left rocker arm II (4) via the left bearing II (32b), and the right end of the rough air pressure pipe II (19) is movably connected to the lower end of the rear right rocker arm II (24) via the right bearing II (33b); the upper end of the rear left rocker arm I (3) is hinged to the hanging plate I (26b) of the flat plate assembly (26) via the left bolt I (31a); the upper end of the rear left rocker arm II (4) is hinged to the hanging plate II (26c) of the flat plate assembly (26) via the left bolt II (31b); the upper end of the rear right rocker arm I (21) The rear right rocker arm II (24) is hinged to the hanging plate IV (26e) of the flat plate assembly (26) via the right bolt I (34a); the upper end of the rear right rocker arm II (24) is hinged to the hanging plate III (26d) of the flat plate assembly (26) via the right bolt II (34b); the rear seeding device (D), the seeding port assembly (8) and the front seeding device (E) are arranged in sequence from back to front, and the 28 suction nozzles of the air pressure tube assembly in the rear seeding device (D) and the front seeding device (E) are respectively aligned with the 28 seeding ports in two rows of the seeding port assembly (8); The transmission part (C) is composed of a rocker I (48), a connecting rod I (49), a linear guide assembly I (50), a connecting rod II (51), an eccentric shaft (52), a gear I (53), a bearing seat assembly I (54), a chain I (55), a gear II (56), a motor (57), a transmission shaft (58), a bearing seat assembly II (59), a gear III (60), a chain II (61), a connecting rod III (62), a linear guide assembly II (63), a connecting rod IV (64), a rocker II (65), a bearing seat assembly III (66), a gear IV (67), and a bearing seat assembly IV (68). The bearing seat assembly I (54), the bearing seat assembly II (59), the bearing seat assembly III (66) and the bearing seat assembly IV (68) are all composed of a bearing seat and a bearing, and the outer ring of the bearing is fixedly connected to the bearing seat hole; the linear guide assembly I (50) and the linear guide assembly II (63) are both composed of a guide rail and a slider, and the guide rail is arranged in the front-to-back direction; the transmission shaft (58) and the eccentric shaft (52) are arranged in parallel in front and back; the right end of the transmission shaft (58) is interference-connected with the inner ring of the bearing of the bearing seat assembly I (54), and the left end of the transmission shaft (58) is interference-connected with the inner ring of the bearing of the bearing seat assembly II (59). The left end of the transmission shaft (58) is fixedly connected to the gear III (60); the right end of the transmission shaft (58) is fixedly connected to the gear I (53); the gear II (56) is fixedly connected to the output end of the motor (57), and the gear I (53) is chain-connected to the gear II (56) via the chain I (55); the middle part of the eccentric shaft (52) near the right end is interference-connected with the inner ring of the bearing of the bearing seat assembly IV (68), and the middle part of the eccentric shaft (52) and the left side of the bearing seat assembly IV (68) are fixedly connected to the gear IV (67); the middle part of the eccentric shaft (52) near the left end is interference-connected with the inner ring of the bearing of the bearing seat assembly III (66); the gear III (60) is chain-connected to the inner ring of the bearing of the bearing seat assembly III (66) via the chain II (6 1) is chain-connected with gear IV (67); the right end of the eccentric shaft (52) is movably connected to the left side of the slider of the linear guide assembly I (50) via the connecting rod II (51), the left end of the connecting rod I (49) is fixedly connected to the upper surface of the slider of the linear guide assembly I (50), and the right end of the connecting rod I (49) is movably connected to the front end of the rocker I (48); the left end of the eccentric shaft (52) is movably connected to the right side of the slider of the linear guide assembly II (63) via the connecting rod III (62), the right end of the connecting rod IV (64) is fixedly connected to the upper surface of the slider of the linear guide assembly II (63), and the left end of the connecting rod IV (64) is movably connected to the front end of the rocker II (65); The motion trajectory equation of the nozzle head in the front seeding device (E) is: y1=1.30976×10 -8 x1 3 -0.00286x1 2 +0.41816x1+125.72765 x1∈(-90.1,237)； Wherein: y1 is the ordinate of the front left rocker arm Ⅰ (13) and the front right rocker arm Ⅰ (14) in the front seeding device (E), and x1 is the abscissa of the front left rocker arm Ⅰ (13) and the front right rocker arm Ⅰ (14) in the front seeding device (E); The motion trajectory equation of the head of the suction nozzle (30) in the rear seeding device (D) is: <h2 style=";text-align:left;direction:ltr">y2 = -6.44847×10<h2 style=";text-align:left;direction:ltr"> -13 <h2 style=";text-align:left;direction:ltr"> x2<h2 style=";text-align:left;direction:ltr"> 3 <h2 style=";text-align:left;direction:ltr"> -0.00286x2<h2 style=";text-align:left;direction:ltr"> 2 <h2 style=";text-align:left;direction:ltr"> -0.41848x2+125.74781 x2∈(-237,90.1)； Wherein: y2 is the ordinate of the rear left rocker arm Ⅰ (3) and the rear right rocker arm Ⅰ (21) in the rear seeding device (D), and x2 is the abscissa of the rear left rocker arm Ⅰ (3) and the rear right rocker arm Ⅰ (21) in the rear seeding device (D); The relationship between the angle between the front left rocker arm Ⅰ (13), the front right rocker arm Ⅰ (14) and the frame and the position of the linear guide assembly Ⅰ (50) and the linear guide assembly Ⅱ (63) is: θ=4.555663×10 -5 x3 3 -0.03362x3 2 +9.06006x3-772.8299 x3∈(183,292)； Wherein: θ is the angle between the front left rocker arm Ⅰ (13), the front right rocker arm Ⅰ (14) and the frame, and x3 is the horizontal coordinate of the linear guide assembly Ⅰ (50) and the linear guide assembly Ⅱ (63); The rear seeding device (D), seeding port assembly (8) and front seeding device (E) arranged in sequence from back to front in the seeding part (A) are fixedly connected to a frame surrounded by a left beam (44), a rear cross bar (35), a right beam (40) and a rear beam (47) in a frame (B); the bottom surface of the guide rail of the linear guide rail assembly I (50) in the transmission part (C) is fixedly connected to the upper surface of the longitudinal rod I (36) in the frame (B); the bearing seat of the bearing seat assembly IV (68) in the transmission part (C) is fixedly connected to the upper surface of the front end of the longitudinal rod II (38) in the frame (B); the bearing seat of the bearing seat assembly III (66) in the transmission part (C) is fixedly connected to the upper surface of the front end of the longitudinal rod III (45) in the frame (B); the linear guide rail assembly II (63 ) is fixedly connected to the upper surface of the longitudinal rod IV (46) in the frame (B); the bearing seats of the bearing seat assembly I (54) and the bearing seat assembly II (59) in the transmission part (C) are fixedly connected to the upper surface of the rear part of the support plate (39) in the frame (B); the motor (57) in the transmission part (C) is fixedly connected to the upper surface of the front part of the support plate (39) in the frame (B); the rear end of the rocker I (48) in the transmission part (C) is hinged to the right seeding connecting shaft (12b) of the front right rocker arm I (14) of the front seeding device (E) in the seeding part (A); the rear end of the rocker II (65) in the transmission part (C) is hinged to the left seeding connecting shaft (12a) of the front left rocker arm I (13) of the front seeding device (E) in the seeding part (A).

2. The seeding device of the trough-type Panax notoginseng air-suction seeder according to claim 1, characterized in that: The frame (B) is composed of a rear crossbar (35), a longitudinal bar I (36), a front crossbar (37), a longitudinal bar II (38), a support plate (39), a right beam (40), a front beam (41), a long longitudinal bar I (42), a long longitudinal bar II (43), a left beam (44), a longitudinal bar III (45), a longitudinal bar IV (46) and a rear beam (47), wherein the front beam (41), the left beam (44), the rear beam (47) and the right beam (40) are connected end to end to form a rectangular structure; the longitudinal bars I (36), the longitudinal bars II (38), the longitudinal bars III (45) and the longitudinal bars IV (46) are evenly distributed and fixed. The rear cross bar (35) and the front cross bar (37) are connected to the upper surface of the rear cross bar (35) and the front cross bar (37) to form a mesh-shaped structure; the left ends of the rear cross bar (35) and the front cross bar (37) are fixedly connected to the right side of the middle part of the left beam (44), and the right ends of the rear cross bar (35) and the front cross bar (37) are fixedly connected to the left side of the middle part of the right beam (40); the support plate (39) is fixedly connected to the upper surface of the rear part of the long longitudinal bar I (42) and the long longitudinal bar II (43), the front ends of the long longitudinal bar I (42) and the long longitudinal bar II (43) are fixedly connected to the rear of the right part of the front beam (41), and the rear ends of the long longitudinal bar I (42) and the long longitudinal bar II (43) are fixedly connected to the front of the right part of the front cross bar (37).

3. The seeding device of the trough-type Panax notoginseng air-suction seeder according to claim 2 is characterized in that: In the rear seeding device (D), the coarse air pressure pipe I (18) is a negative pressure pipe, and the coarse air pressure pipe II (19) is a positive pressure pipe.

Images