Multifunctional sesame seeder

Abstract

The present invention relates to a multifunctional sesame seeder, wherein a fertilizing mechanism is provided in the middle of a main frame of the seeder, a rotary tillage shaft is provided at the front end of the main frame, and a sowing mechanism and a soil covering roller are provided at the rear end of the main frame. When a traction device pulls the seeder forward, the rotary tillage shaft in the front performs a rotary tillage and loosening operation, the fertilizing mechanism in the middle performs a fertilizing operation, the sowing mechanism in the rear performs a sowing operation, and finally the soil covering roller performs a post-sowing soil covering operation. Multiple operations can be completed in one stroke, the function is rich, and the sowing efficiency is greatly improved. Moreover, the soil covering roller of the seeder can provide power to the fertilizing mechanism and the sowing mechanism at the same time through a sprocket group and a chain during the soil covering operation. The soil covering roller serves as a power source for both the fertilizing mechanism and the sowing mechanism, and does not need the traction device in the front to provide power. This driving mode does not increase the load of the entire seeder, has high sowing efficiency, and is conducive to energy saving and consumption reduction.

Description

Technical Field

[0001] The invention relates to the field of sowing equipment, in particular to a multifunctional sesame sowing machine. Background Art

[0002] In the past, the cultivation of small-grain seed crops such as sesame mainly relied on manual sowing. The seeds were sown unevenly and could not be formed into ridges, making it difficult to achieve standardized and large-scale planting operations. The present invention mainly adopts the method for the seed drill to sow sesame seeds, but the existing seed drill still has some problems in actual use. First, the existing sesame seed drill only undertakes the work of sesame sowing and has a relatively single function. Therefore, rotary tillage is required before sowing and fertilization is required after sowing, resulting in low sowing efficiency. Second, due to the small size of sesame seeds, sesame seeds often get stuck in the shell gap of the groove wheel seeder during sowing, which is easy to cause blockage. Therefore, the seeder often needs to be removed for unblocking. However, the existing seed drill is fixedly connected to the bracket of the seeder in an integrated manner, which is inconvenient to disassemble and is not conducive to timely unblocking the seed drill. Third, due to the thin and brittle skin of sesame seeds, when the sesame seeds rotate downward from the groove to discharge seeds, friction is generated with the sealing block fixedly installed at the lower end of the seeder shell, thereby easily wearing out the skin of sesame seeds, resulting in a high seed damage rate. Fourth, the seeder is usually powered by a traction device in the front. This driving method will increase the load of the entire seeder, which is not conducive to improving sowing efficiency and saving energy. Summary of the Invention

[0003] In order to solve the above problems, the present invention provides a multifunctional sesame seeder.

[0004] The technical solution of the present invention is: a multifunctional sesame seeder, comprising a fertilizing mechanism, a sowing mechanism, a furrowing mechanism, a soil covering roller, and a rotary tillage blade shaft; the fertilizing mechanism is mounted on a main frame of the seeder; a drive shaft armor is connected between a plurality of fertilizer dispensers at the lower end of a hopper of the fertilizing mechanism; a furrowing plow fixedly connected to the main frame is provided at the lower end of each fertilizer dispenser; an outlet of the fertilizer dispenser is connected to a fertilizer pipeline leading into the furrowing plow; a diverter roller is rotatably connected to the lower portion of the front end of the furrowing plow; two end plates are provided on both sides of the front end of the main frame; the rotary tillage blade shaft is rotatably connected between the two end plates; a support wheel is provided in the middle of the front end of the main frame; and a hanging bracket is provided above the front end;

[0005] The rear end of the main frame is fixedly connected to an auxiliary frame, on which several sesame sowing mechanisms are arranged at equal intervals, and the sesame sowing mechanisms and fertilizer dispensers are arranged alternately; the sesame sowing mechanism includes a base and a seed dispenser that are square as a whole, and the base includes two vertical support plates that are symmetrically arranged and have a certain interval, a bottom plate is provided between the lower ends of the middle parts of the two vertical support plates, a seeding hole is provided in the middle of the bottom plate, a seeding tube is coaxially provided at the lower end of the seeding hole, a card slot is provided on the upper end of the side support plate on the inner side of the seeding hole, the positions of the two card slots correspond, and a baffle is provided on the inner side of the card slot, a support platform is provided on the outer side of the seeding hole, and an elastic positioning The clamp has a pressing portion in the middle of the elastic positioning clamp, and a pressing portion is provided at the upper end of the pressing portion; the lower end of the seed metering device is provided with a square docking seat that is matched and snapped into the base, and the lower part of one end of the docking seat is provided with a positioning boss that is pressed on the support platform, and the pressing portion of the elastic positioning clamp is pressed tightly against the outer side of the upper end surface of the positioning boss, and the other end of the docking seat is symmetrically provided with two card shafts, which are matched and snapped into the two card grooves; a drive shaft B is connected to the plurality of bases through a bearing seat, and a plurality of driving gears are installed on the drive shaft B; a positioning shaft is provided in the middle of the upper surface of the support platform, and a positioning hole is provided in the middle of the positioning boss that is matched and snapped into the positioning shaft;

[0006] Several furrowing mechanisms are installed on the auxiliary bracket at equal intervals, and the lower end of the seed pipe is provided with a seed pipe connected to the furrowing mechanism;

[0007] Both ends of the driving shaft A are fixedly fitted with sprockets F, and both ends of the outer side of the main frame are provided with triangular brackets. Both ends of the driving shaft B are rotatably connected through bearing seats and triangular brackets, and sprockets E and sprockets D are fixedly fitted on the outer end of the driving shaft B. The outer ends of the two triangular brackets are hinged with covering roller brackets, which are hingedly installed with synchronously rotating sprockets B and sprocket C. The covering roller is rotatably connected between the lower ends of the two covering roller brackets, and a sprocket A is fixedly fitted on the roller shaft of the covering roller; a chain is fitted between sprocket A and sprocket B, a chain is fitted between sprocket C and sprocket D, and a chain is fitted between sprocket E and sprocket F.

[0008] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The swing arm end face has a hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0009] Preferably, a scraper assembly is installed on the retaining shell, and the scraper assembly includes an M-shaped bracket fixedly installed on the retaining shell, and the two side plates of the M-shaped bracket are respectively close to the outer sides of the two ditching discs, and each side plate is hinged with a scraper A, and a torsion spring is installed on the hinge shaft to press the scraper A against the outer side of the ditching disc, and an intermediate plate extending between the two ditching discs is provided in the middle of the M-shaped bracket, and two scraper Bs are symmetrically hinged on both sides of the intermediate plate, and a torsion spring is installed on the hinge shaft to press the scraper B against the inner side of the ditching disc.

[0010] Preferably, the seeding device includes a material storage box, a seeding wheel, an arc-shaped seal and an elastic baffle assembly; the docking seat is connected to the lower end of the material storage box, and an axial hole is provided on the side wall in the middle of the docking seat. A seeding shaft is rotatably connected between the two axial holes through a bearing, and a driven gear meshing with the corresponding driving gear is installed on the seeding shaft. The seeding wheel is arranged in the docking seat and fixedly sleeved on the seeding shaft, and the end face of the seeding wheel is close to the inner side wall of the docking seat. The main body of the arc-shaped seal is an arc-shaped plate, and the inner edge of the arc-shaped plate is provided with a flexible sealing folding edge. The upper ends of the two inner side walls of the docking seat are fixedly connected with an arc-shaped seal, and the flexible sealing folding edges are matched and pressed on the rolling surface edge of the seeding wheel; the elastic baffle assembly is fixedly connected in the docking seat and is located on the side of the seeding wheel loading; the side surface of the seeding wheel is provided with a plurality of loading grooves at equal intervals along the circumferential direction, and the shape of the loading groove is the same as that of the human eye.

[0011] Preferably, the elastic baffle assembly includes an arc-shaped elastic baffle, a connecting seat and a manual screw. The elastic baffle and the connecting seat are fixed into one body. The connecting seat is fixed to the upper part of the inner side of the docking seat by a manual screw. The elastic baffle is elastically fitted to the side of the seeding wheel.

[0012] Preferably, a material blocking boss is provided on one side of the docking seat and the storage box, and a brush is fixedly connected to the other side by a manual screw; an oblong hole is provided on the brush handle of the brush, and the manual screw is inserted into the oblong hole to fix the brush.

[0013] Preferably, the surface of the bottom plate is provided with a guide groove covering the seeding hole, and the guide groove has a certain taper.

[0014] Preferably, the side of the covering roller is provided with a plurality of tooth groups at equal intervals along the axial direction, the tooth group includes a plurality of triangular teeth evenly distributed on the outer side of the covering roller, and the tooth group corresponds to the middle of two adjacent ditching mechanisms.

[0015] Preferably, the soil covering roller bracket includes two supporting side plates with a certain distance between them, and a rotating shaft is fixedly connected between the two ends of the two supporting side plates. The rotating shaft is rotatably connected to the triangular bracket, and a shaft sleeve is installed in the middle of the rotating shaft to form a rotating pair, and the sprocket B and the sprocket C are both fixedly installed on the shaft sleeve.

[0016] Preferably, the upper and lower edges of the supporting side plates are both provided with folded edges, and the folded edges on both sides form a sealing structure on the soil covering roller bracket.

[0017] The beneficial technical effects of the present invention are:

[0018] (1) The main frame of the seeder is provided with a fertilizing mechanism in the middle, a rotary tillage shaft is provided at the front end of the main frame, and a sowing mechanism and a covering roller are provided at the rear end of the main frame. When the traction device pulls the seeder forward, the rotary tillage shaft performs a rotary tillage and loosening operation, the fertilizing mechanism performs a fertilizing operation, and then the sowing mechanism performs a sowing operation. Finally, the covering roller performs a covering operation after sowing. A variety of operations can be completed in one stroke, and the function is rich, which greatly improves the sowing efficiency. Moreover, the covering roller can synchronously transmit power to the fertilizing and sowing mechanisms through a multi-sprocket set and a chain during the covering operation. The covering roller serves as the power source for both, and does not require the traction device in the front to provide power. This driving method does not increase the load of the entire seeder, has high sowing efficiency, and is conducive to energy saving and consumption reduction.

[0019] (2) Before the docking seat of the seeding device of the present invention is inserted into the base, the elastic positioning clamp is first pressed outward to make the top pressure part in the middle leave the support platform of the base. When the docking seat is inserted into the base, the clamping shaft on the inner side of the docking seat can be matched and inserted into the clamping groove on the inner side of the base, the positioning boss on the outer side can be pressed on the support platform, and the positioning shaft can be matched and inserted into the positioning hole. Then the elastic positioning clamp is released, and the top pressure part of the elastic positioning clamp is reset and pressed against the upper surface of the positioning boss. Therefore, the seeding device can be firmly fixed in the base for sowing operations. When the seeds are stuck, the seeding device can be easily removed upward by pressing the elastic positioning clamp outward, which solves the problem of inconvenient disassembly of the seeding device and can clear the seeding device in time, which is conducive to improving the sowing efficiency.

[0020] (3) A driven gear is installed on the seeding shaft of the seeding device of the present invention, and a driven gear meshing with the driving gear is installed on the base through the drive shaft B. Therefore, when the seeding device and the base are disassembled and assembled, the driving gear and the driven gear can be automatically separated or meshed, the operation is simple, and seamless connection of the drive components can be achieved.

[0021] (4) An elastic baffle assembly is provided in the docking seat at the lower end of the storage box of the present invention. The arc-shaped elastic baffle in the assembly is elastically fitted to the side of the seeding wheel. When the sesame seeds rotate downward from the loading trough of the seeding wheel to be sown, the elastic sealing plate will seal the seeding side of the seeding wheel to prevent the sesame seeds from being discharged prematurely. In addition, the elastic sealing plate will produce slight elastic deformation as the seeding wheel rotates, avoiding excessive pressure on the sesame seeds in the loading trough, reducing friction, and effectively preventing damage to the seed surface.

[0022] (5) A scraper assembly is provided on the retaining shell of the furrow opener of the present invention. Scrapers are hinged on the middle plate and side plates of the M-shaped bracket in the assembly. The inner scraper can scrape off the mud adhering to the inner side of the furrowing disc, and the outer scraper can scrape off the mud adhering to the outer side of the furrowing disc. The scraping is relatively comprehensive and will not affect the furrowing and sowing effect. Pressure is applied to the scraper by a torsion spring, which can extend the pressure point to the middle of the scraper. The problem of insufficient pressure on the scraping part at the lower end of the scraper is not likely to occur, thereby ensuring the scraping effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is one of the three-dimensional structural diagrams of the present invention;

[0024] Figure 2 yes Figure 1 A partial enlarged view of

[0025] Figure 3 This is the second schematic diagram of the three-dimensional structure of the present invention;

[0026] Figure 4 yes Figure 3 Schematic diagram of the top view structure;

[0027] Figure 5 yes Figure 4 A partial enlarged view of

[0028] Figure 6 It is a schematic diagram of the three-dimensional structure of the soil covering roller bracket;

[0029] Figure 7 Schematic diagram of the three-dimensional structure of the seeding mechanism installed on the auxiliary frame;

[0030] Figure 8 It is one of the three-dimensional structural diagrams of the seeding mechanism;

[0031] Figure 9 This is the second schematic diagram of the three-dimensional structure of the seeding mechanism;

[0032] Figure 10 It is a schematic diagram of the internal structure between the base and the seed meter;

[0033] Figure 11 It is a schematic diagram of the three-dimensional structure of the seed meter;

[0034] Figure 12 It is a schematic diagram of the three-dimensional structure of the base;

[0035] Figure 13 1. It is a schematic diagram of the structure of the seed meter from a top view;

[0036] Figure 14 yes Figure 13 AA section view;

[0037] Figure 15 yes Figure 14 A partial enlarged view of

[0038] Figure 16 It is a schematic diagram of the three-dimensional structure of the seed wheel;

[0039] Figure 17 1 is a schematic diagram of the three-dimensional structure of the elastic baffle assembly;

[0040] Figure 18 Schematic diagram of the three-dimensional structure of the arc seal;

[0041] Figure 19 It is a schematic diagram of the three-dimensional structure of the furrow opener;

[0042] Figure 20 yes Figure 19 A partial enlarged view of

[0043] Figure 21 It is a schematic diagram of the main structure of the furrow opener;

[0044] Figure 22 This is a schematic diagram of the top view of the furrow opener

[0045] Figure 23 yes Figure 22 BB cross-sectional view;

[0046] Figure 24 It is a schematic diagram of the three-dimensional structure of the sliding support.

[0047] In the figure, 01 trenching mechanism 11. trenching disc, 12. spring, 13. sliding support, 131. assembly plate, 132. square cylinder, 133. long sliding hole A, 14. main support rod, 141. support shaft, 142. seat bearing, 143. long sliding hole B, 15. limit guide pin, 16. retaining shell, 17. horizontal axis, 171. roller, 18. M-shaped bracket, 181. side plate, 182. middle plate, 183. scraper A, 184. scraper B, 185. torsion spring, 19. fertilization hole; 02 sowing mechanism 21. Base, 211. Vertical support plate, 212. Bottom plate, 213. Seed hole, 214. Seed tube, 215. Clamping slot, 216. Baffle, 217. Support platform, 218. Diversion groove, 219. Positioning shaft, 220. Through hole, 22. Seeder, 221. Docking seat, 222. Positioning boss, 223. Clamping shaft, 224. Positioning hole, 23. Elastic positioning clip, 231. Pressing part, 232. Pressing part, 241. Driving gear, 242. Driven gear, 243. Drive shaft B, 245. Seed channel, 246. Bearing seat; 31. Storage box, 311. Slide, 32. Seed wheel, 321. Loading trough, 33. Arc 3. Shaped seal, 331. Flexible sealing fold, 332. Threaded hole, 333. Small screw, 34. Docking seat, 341. Seed discharging shaft, 342. Material retaining boss, 351. Elastic baffle, 352. Connecting seat, 353. Manual screw, 36. Brush, 361. Oblong hole, 37. Cover; 412. Sprocket F, 422. Sprocket E, 423. Sprocket D, 46. Covering roller bracket, 461. Sprocket B, 462. Sprocket C, 463. Support side plate, 464. Folded edge, 465. Rotating shaft, 47. Covering roller, 471. Sprocket A, 472. Triangular teeth, 473. Roller shaft, 48. Chain, 49. Bushing; 05. Fertilizer mechanism, 51. Silo, 52. Drive shaft armor, 53. Furrowing plow, 531. Diverter roller, 54. Fertilizer dispenser, 541. Fertilizer pipe, 61. Rotary tiller shaft, 62. End plate, 71. Main frame, 711. Auxiliary frame, 712. Support wheel, 713. Mounting bracket, 714. Triangular bracket. DETAILED DESCRIPTION

[0048] Example 1, see the attached Figure 1-24The fertilizing mechanism is installed on the main frame of the seed drill, and a driving shaft armor is connected between several fertilizer dispensers at the lower end of the hopper of the fertilizing mechanism, which synchronously drive several fertilizer dispensers to work through the driving shaft armor. The lower end of each fertilizer dispenser is provided with a furrow plow fixedly connected to the main frame, and the outlet of the fertilizer dispenser is connected with a fertilizer pipe leading into the furrow plow, and the fertilizer dispenser discharges the fertilizer and discharges it into the furrow plow through the fertilizer pipe for fertilizing; two end plates are provided on both sides of the front end of the main frame, and the rotary tillage blade shaft is rotatably connected between the two end plates, and rotary tillage and loosening soil are performed through the rotary tillage blade shaft, and a traction device provides power for the rotary tillage blade shaft, and a supporting wheel is provided in the middle of the front end of the main frame, the supporting wheel-loaded front end provides support for the seed drill, and a hanging bracket is provided above the front end, which is used to be connected with the traction device;

[0049] The rear end of the main frame is fixedly connected to an auxiliary frame, and a number of sesame sowing mechanisms are arranged at equal intervals on the auxiliary frame, and the sesame sowing mechanisms and fertilizer devices are staggered; the sesame sowing mechanism includes a base and a seeding device that is square as a whole, and the base includes two vertical support plates that are symmetrically arranged and have a certain interval, and a bottom plate is provided between the lower ends of the middle parts of the two vertical support plates, and a seeding hole is provided in the middle of the bottom plate, and a seeding tube is coaxially provided at the lower end of the seeding hole, and a card slot is provided on the upper end of the side support plate on the inner side of the seeding hole. The card slot is L-shaped, and the positions of the two card slots correspond, and a baffle is provided on the inner side of the card slot, and a support platform is provided on the outer side of the seeding hole, and a chamber for clamping the seeding device is formed between the support platform, the base and the baffle, and an elastic positioning clip is fixedly connected to the bottom plate on the outer side of the support platform, and the middle part of the elastic positioning clip is provided with an inward convex A pressing part is provided, and a pressing part is provided at the upper end of the pressing part; the lower end of the seed metering device is provided with a square docking seat that is matched and inserted into the base, and the sesame seeds in the seed metering device flow downward from the channel in the middle of the docking seat. The lower part of one end of the docking seat is provided with a positioning boss that presses on the support table, and the pressing part of the elastic positioning clip is pressed tightly on the outer side of the upper end surface of the positioning boss. The other end of the docking seat is symmetrically provided with two card shafts, which are matched and inserted into the two card grooves. Under the joint action of the card shaft and the pressing part, the seed metering device is fixed tightly in the base; a drive shaft B is connected to the several bases through a bearing seat, and several driving gears are installed on the drive shaft B; a positioning shaft is provided in the middle of the upper surface of the support table, and a positioning hole that is matched and inserted into the positioning shaft is provided in the middle of the positioning boss, which plays a role in positioning and limiting the seed metering device.

[0050] Several furrowing mechanisms are installed on the auxiliary bracket at equal intervals, and the lower end of the seed pipe is provided with a seed pipe connected to the furrowing mechanism;

[0051] The seeding device includes a material storage box, a seeding wheel, an arc-shaped seal and an elastic baffle assembly; the docking seat is connected to the lower end of the material storage box, and an axial hole is provided on the side wall in the middle of the docking seat. A seeding shaft is rotatably connected between the two axial holes through a bearing, and a driven gear meshing with the corresponding driving gear is installed on the seeding shaft. The driving gear is driven to rotate by driving shaft B, and then the driven gear of the seeding device is driven to rotate. When the seeding device and the base are disassembled and assembled, the driving gear and the driven gear can be automatically separated or engaged, which is easy to operate. The seeding wheel is arranged in the docking seat and fixedly sleeved on the seeding shaft. The end face of the seeding wheel is close to the inner wall of the docking seat. In order to reduce friction, a small gap is provided between the seeding wheel and the inner wall of the docking seat. The main body of the arc-shaped seal is an arc plate. The inner edge of the arc plate is provided with a flexible sealing fold. An arc-shaped sealing member is fixedly connected to the upper ends of the two inner side walls of the seat, and the flexible sealing fold is matched and pressed against the edge of the rolling surface of the seed wheel, so that the above-mentioned small gap can be sealed. When the seed wheel rotates for sowing, the sesame seeds will not be stuck in the gap, which will not affect the normal rotation of the seed wheel. The sesame seeds can be discharged smoothly and will not cause the seed meter to be blocked; the elastic baffle assembly is fixedly connected in the docking seat and is located on the side of the seed wheel loading; the side of the seed wheel is provided with a plurality of loading grooves at equal intervals along the circumferential direction, and the shape of the loading groove is the same as the shape of the human eye, and the length direction of the loading groove is consistent with the rotation direction of the seed wheel. The loading groove of this shape is different from the semicircular loading groove, and can play the role of guiding seeds. The seeds can be discharged from the loading groove in a direction and concentrated manner, thereby improving the sowing effect of fixed distance and fixed plant.

[0052] The elastic baffle assembly includes an arc-shaped elastic baffle, a connecting seat and a manual screw. The elastic baffle and the connecting seat are fixed into one body. The connecting seat is fixed to the upper inner side of the docking seat by a manual screw. The elastic baffle elastically fits on the side of the seed wheel. The elastic sealing plate will seal the seeding side of the seed wheel to prevent sesame seeds from being discharged prematurely. The elastic sealing plate will produce slight elastic deformation as the seed wheel rotates, avoiding excessive pressure on the sesame seeds in the loading trough and reducing friction on the seeds.

[0053] Both ends of the driving shaft A are fixedly fitted with sprockets F, and both ends of the outer side of the main frame are provided with triangular brackets. Both ends of the driving shaft B are rotatably connected through bearing seats and triangular brackets, and sprockets E and sprockets D are fixedly fitted on the outer end of the driving shaft B. The outer ends of the two triangular brackets are hinged with covering roller brackets, which are hingedly installed with synchronously rotating sprockets B and sprocket C. The covering roller is rotatably connected between the lower ends of the two covering roller brackets, and a sprocket A is fixedly fitted on the roller shaft of the covering roller; a chain is fitted between sprocket A and sprocket B, a chain is fitted between sprocket C and sprocket D, and a chain is fitted between sprocket E and sprocket F. Sprocket A drives sprocket C and sprocket B to rotate synchronously through the chain, sprocket C drives sprocket D and sprocket E to rotate synchronously through the chain, and sprocket E drives sprocket F to rotate.

[0054] The ditching mechanism includes a walking bracket, two ditching discs, a spring and a sliding support; the lower end of the square main support rod of the walking bracket is symmetrically provided with two support shafts distributed in a V shape, and the outer ends of the two support shafts are coaxially installed with seat bearings, and the two ditching discs are fixedly installed on the two seat bearings; an arc-shaped retaining shell fixedly connected to the main support rod is provided above the ditching disc, and a sowing hole is provided in the middle of the front end of the retaining shell. The seed pipe extends into the sowing hole, and sesame seeds are sown into the opened sowing trench from the sowing hole. The sliding support includes an assembly plate and a square cylinder arranged in the middle of the side of the assembly plate. The upper end of the main support rod is slidably sleeved in the square cylinder, and the spring is sleeved on the main support rod between the sliding support and the retaining shell. The spring provides elastic support for the main support rod, and a long sliding hole A is vertically provided in the middle of the side wall of the square cylinder, and a long sliding hole B is vertically provided in the middle of the upper end of the main support rod. A limiting guide pin is installed between the long sliding hole A and the long sliding hole B. The long sliding hole and the limiting guide pin provide sliding guide for the main support rod, reducing sliding friction and controlling the sliding stroke of the main support rod; a certain gap is left between the square cylinder and the main support rod, and rollers are installed at the upper and lower ends of the gap through a horizontal axis, and the side of the roller contacts the side of the main support rod. The rollers provide sliding support for the main support rod, reducing the sliding friction between the main support rod and the sliding support, which can improve the flexibility of the ditching disc up and down.

[0055] The scraper blade assembly is installed on the retaining shell, and the scraper blade assembly includes an M-shaped bracket fixedly installed on the retaining shell, and the two side plates of the M-shaped bracket are respectively close to the outer sides of the two ditching discs, and each side plate is hinged with a scraper blade A, and a torsion spring is installed on the hinge shaft to press the scraper blade A against the outer side of the ditching disc. The inner scraper can scrape off the soil adhered to the inner side of the ditching disc, and an intermediate plate is provided in the middle of the M-shaped bracket, which extends between the two ditching discs. Two scraper blades B are symmetrically hinged on both sides of the intermediate plate, and a torsion spring is installed on the hinge shaft to press the scraper blade B against the inner side of the ditching disc. The outer scraper can scrape off the soil adhered to the outer side of the ditching disc; therefore, the scraping is more comprehensive and will not affect the furrowing and sowing effect, and the torsion spring can extend the pressure point to the middle of the scraper blade, and the problem of insufficient pressure on the scraping part at the lower end of the scraper blade is not easy to occur.

[0056] The lower portion of the furrowing plow's front end is rotatably connected to a diverter roller. Soil displaced by the plow during furrowing can be quickly channeled through the diverter roller, preventing accumulation at the front end of the plow and hindering the furrowing operation. A chute is provided at the lower end of the side of the storage box, through which the brush extends into the docking station. The curved plate of the arc seal is provided with several equally spaced threaded holes, into which small screws are inserted to securely connect the arc seal to the side wall of the docking station.

[0057] A material blocking boss is provided on one side of the docking seat and the storage box, and a brush is fixedly connected to the other side by a manual screw, so that a chamber for accommodating seeds is formed between the seed wheel, the storage box and the docking seat; an oblong hole is provided on the brush handle of the brush, and a manual screw is inserted into the oblong hole to fix the brush. After the brush is worn out and shortened after long-term use, the effect of brushing seeds will become worse. The height of the brush can be conveniently adjusted by the manual screw and the oblong hole to ensure the brushing effect.

[0058] The surface of the bottom plate is provided with a guide groove covering the seeding hole, and the guide groove has a certain taper. When the sesame seeds in the seeding device flow into the base, the guide groove can quickly guide them into the seeding hole to leak out, which can increase the sowing speed and avoid the phenomenon of seed blockage.

[0059] Several tooth groups are provided at equal intervals along the axial direction on the side of the covering roller. The tooth group includes several triangular teeth evenly distributed on the outer side of the covering roller. The tooth group corresponds to the middle of the two adjacent furrowing mechanisms. The triangular teeth are used to improve the grip of the covering roller. Therefore, sufficient power can be provided to the fertilizing mechanism and the sowing mechanism through the chain and sprocket to avoid the position of the seeds and prevent the seeds just sown by the front sowing mechanism from being dug out when the triangular teeth grip the ground.

[0060] The soil-covering roller bracket includes two support side plates spaced a certain distance apart. A rotating shaft is fixedly connected between the two ends of each support side plate. The rotating shaft is rotatably connected to the triangular bracket, and a shaft sleeve is mounted in the middle of the rotating shaft to form a rotating pair. Sprockets B and C are both fixedly mounted on the shaft sleeves. Therefore, sprockets B and C can rotate synchronously, and the soil-covering roller can swing up and down, adapting to the undulations of the ground, further ensuring grip and a good soil-covering effect. Furthermore, the upper and lower edges of the support side plates are provided with folded edges. These folded edges on both sides form a sealing structure on the soil-covering roller bracket, preventing large amounts of soil from entering the chain 48 and sprockets, ensuring smooth operation of the chain drive.

[0061] The working process of the present invention is as follows: during sowing operation, the traction device is connected to the hanging bracket at the front end of the seeder, pulling the seeder forward. During the process of moving, the rotary tillage shaft in the front performs rotary tillage and loosening operation, the fertilizing mechanism in the middle performs fertilizing operation, and the sowing mechanism at the rear performs sowing operation. Finally, the soil covering operation after sowing is performed by the covering roller. The covering roller rotates to cover the soil while driving sprocket A to rotate. Sprocket A drives sprocket C and sprocket B to rotate synchronously through the chain. Sprocket C drives sprocket D and sprocket E to rotate synchronously through the chain. The two sprockets drive the sowing mechanism to operate through drive shaft B. Sprocket E drives sprocket F to rotate. Sprocket F drives The shaft armor drives the fertilizing mechanism to operate and provides power for fertilizing and sowing at the same time; when the seed meter of the sowing mechanism is working, the sesame seeds enter the accommodating cavity formed between the seed wheel, the storage box and the docking seat from the storage box. Since the flexible sealing fold of the arc seal is matched and pressed on the edge of the rolling surface of the seed wheel, the sesame seeds will not be stuck in the gap. Then the seeds rotate downward in the loading trough to discharge the seeds. During this process, the elastic sealing plate will seal the seeding side of the seed wheel to prevent the seeds from being discharged prematurely. The elastic sealing plate will also produce slight elastic deformation with the rotation of the seed wheel to avoid excessive pressure on the seeds in the loading trough and reduce the friction on the seeds.

Claims

1. A multifunctional sesame seeding machine, characterized by: It includes fertilizing mechanism, sowing mechanism, furrowing mechanism, covering roller and rotary tillage blade shaft; The fertilizing mechanism is mounted on the main frame of the seed drill. A drive shaft is connected between several fertilizer dispensers at the lower end of the hopper of the fertilizing mechanism. The lower end of each fertilizer dispenser is provided with a furrowing plow fixedly connected to the main frame. The outlet of the fertilizer dispenser is connected to a fertilizer pipeline that leads into the furrowing plow. The lower part of the front end of the furrowing plow is rotatably connected to a diverter roller. Two end plates are provided on both sides of the front end of the main frame. The rotary tillage blade shaft is rotatably connected between the two end plates. A support wheel is provided in the middle of the front end of the main frame, and a hanging bracket is provided above the front end. The rear end of the main frame is fixedly connected to an auxiliary frame, on which several sesame sowing mechanisms are arranged at equal intervals, and the sesame sowing mechanisms and fertilizer dispensers are arranged alternately; the sesame sowing mechanism includes a base and a seed dispenser that are square as a whole, and the base includes two vertical support plates that are symmetrically arranged and have a certain interval, a bottom plate is provided between the lower ends of the middle parts of the two vertical support plates, a seeding hole is provided in the middle of the bottom plate, a seeding tube is coaxially provided at the lower end of the seeding hole, a card slot is provided on the upper end of the side support plate on the inner side of the seeding hole, the positions of the two card slots correspond, and a baffle is provided on the inner side of the card slot, a support platform is provided on the outer side of the seeding hole, and an elastic positioning The clamp has a pressing portion in the middle of the elastic positioning clamp, and a pressing portion is provided at the upper end of the pressing portion; the lower end of the seed metering device is provided with a square docking seat that is matched and snapped into the base, and the lower part of one end of the docking seat is provided with a positioning boss that is pressed on the support platform, and the pressing portion of the elastic positioning clamp is pressed tightly against the outer side of the upper end surface of the positioning boss, and the other end of the docking seat is symmetrically provided with two card shafts, which are matched and snapped into the two card grooves; a drive shaft B is connected to the plurality of bases through a bearing seat, and a plurality of driving gears are installed on the drive shaft B; a positioning shaft is provided in the middle of the upper surface of the support platform, and a positioning hole is provided in the middle of the positioning boss that is matched and snapped into the positioning shaft; Several furrowing mechanisms are installed on the auxiliary bracket at equal intervals, and the lower end of the seed pipe is provided with a seed pipe connected to the furrowing mechanism; Both ends of the driving shaft A are fixedly fitted with sprockets F, and both ends of the outer side of the main frame are provided with triangular brackets. Both ends of the driving shaft B are rotatably connected through bearing seats and triangular brackets, and sprockets E and sprockets D are fixedly fitted on the outer end of the driving shaft B. The outer ends of the two triangular brackets are hinged with covering roller brackets, which are hingedly installed with synchronously rotating sprockets B and sprocket C. The covering roller is rotatably connected between the lower ends of the two covering roller brackets, and a sprocket A is fixedly fitted on the roller shaft of the covering roller; a chain is fitted between sprocket A and sprocket B, a chain is fitted between sprocket C and sprocket D, and a chain is fitted between sprocket E and sprocket F.

2. A multifunctional sesame seeding machine according to claim 1, characterized in that: Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion. The swing arm end face has a hook portion, and a bar passes position between the end of two swing arms and the hook portion.

3. A multifunctional sesame seeding machine according to claim 2, characterized in that: A scraper assembly is installed on the retaining shell, and the scraper assembly includes an M-shaped bracket fixedly installed on the retaining shell, and the two side plates of the M-shaped bracket are respectively close to the outer sides of the two ditching discs. A scraper A is hinged on each side plate, and a torsion spring is installed on the hinge shaft to press the scraper A against the outer side of the ditching disc. An intermediate plate is provided in the middle of the M-shaped bracket and extends between the two ditching discs. Two scraper Bs are symmetrically hinged on both sides of the intermediate plate, and a torsion spring is installed on the hinge shaft to press the scraper B against the inner side of the ditching disc.

4. The multifunctional sesame seeding machine according to claim 1, characterized in that: The seeding device includes a material storage box, a seeding wheel, an arc-shaped seal and an elastic baffle assembly; the docking seat is connected to the lower end of the material storage box, and an axial hole is provided on the side wall in the middle of the docking seat. A seeding shaft is rotatably connected between the two axial holes through a bearing, and a driven gear meshing with the corresponding driving gear is installed on the seeding shaft. The seeding wheel is arranged in the docking seat and fixedly sleeved on the seeding shaft, and the end face of the seeding wheel is close to the inner side wall of the docking seat. The main body of the arc-shaped seal is an arc-shaped plate, the inner edge of the arc-shaped plate is provided with a flexible sealing folding edge, and the upper ends of the two inner side walls of the docking seat are fixedly connected with an arc-shaped seal, and the flexible sealing folding edges are matched and pressed on the edge of the rolling surface of the seeding wheel; the elastic baffle assembly is fixedly connected in the docking seat and is located on the side of the seeding wheel loading; the side surface of the seeding wheel is provided with a plurality of loading grooves at equal intervals along the circumferential direction, and the shape of the loading groove is the same as that of the human eye.

5. The multifunctional sesame seeding machine according to claim 4, characterized in that: The elastic baffle assembly includes an arc-shaped elastic baffle, a connecting seat and a manual screw. The elastic baffle and the connecting seat are fixed into one body. The connecting seat is fixed to the upper part of the inner side of the docking seat by a manual screw. The elastic baffle elastically fits on the side of the seeding wheel.

6. The multifunctional sesame seeding machine according to claim 1, characterized in that: One side of the docking seat and the material storage box is provided with a material blocking boss, and the other side is fixedly connected with a brush through a manual screw; an oblong hole is provided on the brush handle of the brush, and the manual screw is inserted into the oblong hole to fix the brush.

7. The multifunctional sesame seeding machine according to claim 1, characterized in that: The surface of the bottom plate is provided with a guide groove covering the seeding hole, and the guide groove has a certain taper.

8. The multifunctional sesame seeding machine according to claim 1, characterized in that: The side of the soil covering roller is provided with a plurality of tooth groups at equal intervals along the axial direction. The tooth group includes a plurality of triangular teeth evenly distributed on the outer side of the soil covering roller. The tooth group corresponds to the middle of two adjacent ditching mechanisms.

9. The multifunctional sesame seeding machine according to claim 1, characterized in that: The soil covering roller bracket includes two supporting side plates with a certain distance between them. A rotating shaft is fixedly connected between the two ends of the two supporting side plates. The rotating shaft is rotatably connected to the triangular bracket, and a shaft sleeve is installed in the middle of the rotating shaft to form a rotating pair. Sprocket B and sprocket C are both fixedly installed on the shaft sleeve.

10. The multifunctional sesame seeding machine according to claim 9, characterized in that: The upper edge and the lower edge of the supporting side plate are both provided with folded edges, and the folded edges on both sides form a sealing structure on the soil covering roller bracket.

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