Seeding and weeding all-in-one machine for corn and leguminous crops

Abstract

The invention discloses a corn and leguminous crop sowing and weeding all-in-one machine, and relates to the field of sowing equipment. The weeding mechanism and the sowing mechanism are sequentially installed on the sowing vehicle from front to back, when the sowing vehicle moves forwards in a field, the driving assembly in the weeding mechanism can drive the multiple cutting knives to rotate synchronously, so that weeding is conducted through the rotating cutting knives, and then the ditching assembly in the sowing mechanism digs out grooves for sowing in the field; the uniform-speed discharging unit uniformly discharges and distributes seeds in the stock bin into a groove, the soil covering assembly crushes soil excavated by the ditching assembly and then fills the soil into the groove again, and the seeds in the groove are covered, so that weeding and sowing operations are completed at a time through the cooperation of the weeding mechanism and the sowing mechanism, the crop planting steps are simplified, and the crop planting efficiency is improved. The crop planting cost and the labor intensity are reduced; and the soil covering assembly covers the seeds after the soil is broken, so that the looseness and the air permeability of the covered soil are improved, and rooting and germination of the seeds are facilitated.

Description

Technical Field

[0001] The present invention belongs to the field of sowing equipment, and in particular, relates to a corn and leguminous crop sowing and weeding integrated machine. Background Art

[0002] A seeder is a planting machine that sows crop seeds. When sowing, the seeder sows the seeds in holes according to a certain row spacing and hole spacing. It is mainly used for row crops such as corn, cotton, beets, sunflowers, beans, etc., and is widely used.

[0003] Chinese patent CN112640628B discloses a seeder for agricultural planting. When the seeder moves, it drives the seeding disc to rotate, and the seeds placed in the bucket are evenly sown in the ditch according to the walking speed, and then the cover plate at the rear covers the seeds to complete the sowing.

[0004] However, when planting crops such as corn and beans in dryland, the grass in the field will affect the growth of crops, so the field needs to be weeded during sowing. However, most existing seeders do not have a weeding function, so weeding equipment is needed before sowing, which increases the cost of crop planting and labor intensity. Summary of the invention

[0005] In view of the problems in the related technology, the present invention proposes a corn and leguminous crop sowing and weeding all-in-one machine to overcome the above-mentioned technical problems existing in the existing related technology.

[0006] To solve the above technical problems, the present invention is achieved through the following technical solutions:

[0007] The present invention is a corn and leguminous crop sowing and weeding integrated machine, comprising a sowing vehicle, on which a weeding mechanism and a sowing mechanism are sequentially installed from front to back, and the weeding mechanism comprises a driving assembly and a plurality of cutting knives, and the driving assembly can drive the plurality of cutting knives to rotate synchronously, so that the cutting knives can weed when the sowing vehicle moves forward;

[0008] The sowing mechanism includes a furrowing component, a sowing component and a soil covering component which are arranged in sequence from front to back on the sowing vehicle. The furrowing component can dig a sowing groove in the field when the sowing vehicle moves forward. The sowing component includes a silo and a uniform material dropping unit. The uniform material dropping unit can evenly drop the seeds in the silo into the groove when the sowing vehicle moves forward. The soil covering component can crush the soil excavated by the furrowing component and refill it into the groove when the sowing vehicle moves forward.

[0009] Further, the front end of the seeding vehicle is rotatably mounted with an axle, both ends of the axle are fixedly mounted with front wheels, and the rear side end of the seeding vehicle is rotatably mounted with rear wheels;

[0010] A diesel engine and a gearbox transmission-connected to the output end of the diesel engine are fixedly mounted on the top of the seeding vehicle; an output shaft is transmission-mounted on the output end of the gearbox; a travel drive pulley is fixedly mounted on the output shaft; a travel driven pulley is fixedly mounted on one end of the axle; the travel drive pulley and the travel driven pulley are transmission-connected via a travel drive belt.

[0011] Furthermore, the weeding mechanism also includes a front bracket, which is fixedly installed on the front side of the seeding vehicle. A plurality of equally spaced rotating shafts are rotatably installed on the front bracket, and the cutting knife is fixedly installed on the bottom end of each rotating shaft.

[0012] Furthermore, the driving assembly includes a weeding drive pulley, a weeding drive shaft and a plurality of driven bevel gears, the plurality of driven bevel gears are respectively fixedly mounted on the top ends of corresponding rotating shafts, the weeding drive shaft is rotatably mounted on the top surface of the front bracket, a plurality of active bevel gears are fixedly mounted on the weeding drive shaft, the plurality of active bevel gears are meshed and driven in a one-to-one correspondence with the driven bevel gears, a weeding driven pulley is fixedly mounted on one end of the weeding drive shaft, the weeding drive pulley is fixedly mounted on the axle, and the weeding drive pulley and the weeding driven pulley are connected through a weeding drive belt transmission.

[0013] Furthermore, the furrowing assembly includes a cross frame, which is fixedly mounted on the bottom of the seeding vehicle, and on which a plurality of equally spaced furrowing plows are fixedly mounted.

[0014] Further, the uniform-speed dropping unit comprises a sowing chamber, a sowing drive shaft and a transmission unit, the sowing chamber is fixedly mounted on the upper end of the sowing vehicle, a dropping pipe is connected to the top of the sowing chamber, a dropping hopper is fixedly mounted on the top of the dropping pipe, and the top of the dropping hopper is connected to the bottom end of the silo;

[0015] The sowing drive shaft is rotatably mounted on the upper end of the sowing vehicle, and the sowing drive shaft is coaxially arranged with the sowing chamber, one end of the sowing drive shaft is transmission-connected with the output shaft via a transmission unit, a sowing plate located inside the sowing chamber is fixedly mounted on the sowing drive shaft, an outer ring of the sowing plate is in sliding contact with the inner wall of the sowing chamber, and a sowing groove is arranged on the outer ring of the sowing plate, and a sowing guide pipe is connected and mounted on the bottom end of the sowing chamber.

[0016] Furthermore, the transmission unit includes a primary transmission pulley, a transmission shaft and a secondary driven pulley, the primary transmission pulley is fixedly mounted on the output shaft, the transmission shaft is rotatably mounted on the upper end of the seeding vehicle, a primary driven pulley and a secondary transmission pulley are fixedly mounted on both ends of the transmission shaft, the primary transmission pulley and the primary driven pulley are connected via a primary transmission belt transmission, the secondary driven pulley is fixedly mounted on one end of the seeding drive shaft, and the secondary transmission pulley and the secondary driven pulley are connected via a secondary transmission belt transmission.

[0017] Furthermore, a bracket is fixedly installed above the inside of the drop tube, a driving rod is rotatably installed on the bracket, the upper end of the driving rod extends to the inside of the drop hopper and is fixedly installed with a spiral feeding blade, and the lower end of the driving rod is transmission-connected with a rotating driving unit that can drive the driving rod to rotate.

[0018] Further, the rotation driving unit comprises a lifting rod, a plurality of arc-shaped guide grooves and a plurality of lifting guide grooves, the plurality of arc-shaped guide grooves and the plurality of lifting guide grooves are staggered and distributed in sequence along the circumferential direction on the inner wall of the blanking tube, and the arc-shaped guide grooves are arranged obliquely so that the two ends of the arc-shaped guide grooves are respectively connected with the top and bottom ends of the adjacent lifting guide grooves;

[0019] The lifting rod is provided with a telescopic sliding hole with an upper end opening inside, and the lifting rod is slidably plugged and connected with the lower end of the driving rod through the telescopic sliding hole, a limiting sliding groove is provided on the inner wall of the telescopic sliding hole, and a limiting strip slidably engaged with the limiting sliding groove is provided on the outer wall of the driving rod, and a return spring abutting against the bottom end of the driving rod is installed inside the telescopic sliding hole;

[0020] A main shaft is fixedly installed on the outer wall of the upper end of the lifting rod, a limit pin is slidably installed on the outer end of the main shaft, a pressure spring is abutted against the inner end of the limit pin, and the outer end of the limit pin can slide and rise along the arc guide groove and the lifting guide groove.

[0021] Furthermore, the soil covering assembly includes a soil crushing drive shaft, a soil crushing drive pulley and a polymer soil landfill frame, the polymer soil landfill frame is fixedly installed at the bottom of the seeding vehicle and is located below the rear side of the seeding guide pipe, the soil crushing drive shaft is rotatably installed above the polymer soil landfill frame, the soil crushing drive shaft is fixedly installed with a soil crushing roller located on the inner side of the polymer soil landfill frame, one end of the soil crushing drive shaft is fixedly installed with a soil crushing driven pulley, the soil crushing drive pulley is fixedly installed at one end of the seeding drive shaft, and the soil crushing drive pulley and the soil crushing driven pulley are connected through a soil crushing drive belt transmission.

[0022] The present invention has the following beneficial effects:

[0023] 1. In the present invention, a weeding mechanism and a sowing mechanism are sequentially installed on the seeding vehicle from front to back. When the seeding vehicle moves forward in the field, the driving component in the weeding mechanism can drive multiple cutters to rotate synchronously, so as to weed by the rotating cutters. Then, the trenching component in the sowing mechanism digs a trench for sowing in the field, and the uniform-speed dropping unit evenly drops the seeds in the silo and distributes them in the trench. The covering component crushes the soil excavated by the trenching component and refills it in the trench, and covers the seeds in the trench. Thus, the weeding and sowing operations are completed at one time through the cooperation of the weeding mechanism and the sowing mechanism, which simplifies the steps of crop planting and reduces the cost and labor intensity of crop planting. Moreover, the covering component covers the seeds after the soil is crushed, which improves the looseness and air permeability of the covering soil, which is beneficial to the rooting and germination of the seeds.

[0024] 2. In the present invention, a sowing groove is arranged on the outer ring of the sowing disk. When the sowing disk rotates, it can drive the sowing groove to make circular motion in the sowing chamber. When the sowing groove moves to below the drop tube, the crop seeds in the silo enter the sowing groove through the drop hopper and the drop tube. Then, the sowing groove drives the seeds to continue to rotate until the sowing groove and the seeds move to above the sowing guide tube, so that the seeds fall into the excavated groove through the sowing guide tube. Thus, through the rotation of the sowing disk, the seeds can be continuously and evenly dropped and sown. The sowing disk is transmission-connected to the driving assembly of the sowing vehicle, and can automatically sow when the sowing vehicle is moving. At the same time, the sowing speed is related to the walking speed of the sowing vehicle to ensure that the sowing disk can cooperate with the sowing groove to sow equidistantly when the sowing vehicle is moving, thereby improving the sowing uniformity.

[0025] 3. In the present invention, a spiral feeding blade and a rotary driving unit are arranged in the drop tube. When the sowing trough moves to the bottom of the drop tube, the rotary driving unit drives the spiral feeding blade to rotate and feed, thereby conveying the seeds in the drop hopper to the sowing trough through the drop tube. The seeds are conveyed by the spiral feeding blade, which can prevent the seeds from clogging the drop tube, thereby ensuring the normal sowing process. At the same time, it is beneficial to the quantitative conveying and sowing of seeds, further improving the uniformity of sowing.

[0026] Of course, any product implementing the present invention does not necessarily need to achieve all of the advantages described above at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the invention, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For ordinary technicians in this field, they can also obtain drawings based on these drawings without paying creative work.

[0028] Figure 1 This is one of the three-dimensional structural schematic diagrams of the integrated sowing and weeding machine of the present invention;

[0029] Figure 2 For the present invention Figure 1 A local enlarged structural schematic diagram;

[0030] Figure 3 This is the second schematic diagram of the three-dimensional structure of the integrated sowing and weeding machine of the present invention;

[0031] Figure 4 For the present invention Figure 3 A schematic diagram of the local enlarged structure at B;

[0032] Figure 5 The third schematic diagram of the three-dimensional structure of the integrated sowing and weeding machine of the present invention;

[0033] Figure 6 For the present invention Figure 5 A schematic diagram of the local enlarged structure at C;

[0034] Figure 7 It is a three-dimensional structural schematic diagram of the seeding mechanism of the present invention;

[0035] Figure 8 For the present invention Figure 7 A schematic diagram of the local enlarged structure at D;

[0036] Fig. 9 The fourth is a schematic diagram of the three-dimensional structure of the integrated sowing and weeding machine of the present invention;

[0037] Fig.10 For the present invention Fig. 9 Schematic diagram of the local enlarged structure at E.

[0038] In the figure: 1. seeding vehicle; 11. front wheel; 12. rear wheel; 13. diesel engine; 14. gearbox; 15. output shaft; 16. travel drive pulley; 17. travel drive belt; 18. axle; 19. travel driven pulley; 2. weeding mechanism; 21. front bracket; 22. cutter; 23. rotating shaft; 24. weeding drive pulley; 25. weeding drive belt; 26. weeding drive shaft; 27. weeding driven pulley; 28. driving bevel gear; 29. ​​driven bevel gear; 3. seeding mechanism; 31. silo; 32. drop hopper; 33. seeding chamber; 34. seeding drive shaft; 35. primary transmission pulley; 36. primary transmission belt; 37. primary driven pulley; 38. transmission shaft; 39. secondary transmission Pulley; 310, cross frame; 311, furrowing plow; 312, sowing guide pipe; 313, secondary transmission belt; 314, soil crushing roller; 315, soil crushing drive shaft; 316, secondary driven pulley; 317, sowing disc; 318, drop pipe; 319, spiral feeding blade; 320, sowing trough; 321, drive rod; 322, bracket; 323, lifting rod; 324, telescopic slide hole; 325, return spring; 326, arc guide groove; 327, pressure spring; 328, limit pin; 329, main shaft; 330, limit slide groove; 331, limit strip; 332, lifting guide groove; 333, soil crushing drive pulley; 334, soil crushing drive belt; 335, soil crushing driven pulley; 336, aggregate soil landfill frame. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the invention to clearly and completely describe the technical solutions in the embodiments of the invention. Obviously, the described embodiments are only part of the embodiments of the invention, not all of the embodiments. Based on the embodiments in the invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the invention.

[0040] In the description of the present invention, it is necessary to understand that the terms "opening", "upper", "lower", "top", "middle", "inside" and the like indicating orientation or positional relationship are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the invention.

[0041] Embodiment 1

[0042] See also Figure 1As shown, the present invention is a corn and leguminous crop sowing and weeding integrated machine, comprising a sowing vehicle 1, on which a weeding mechanism 2 and a sowing mechanism 3 are sequentially installed from front to back, the weeding mechanism 2 comprises a driving assembly and a plurality of cutters 22, the driving assembly can drive the plurality of cutters 22 to rotate synchronously, so that the cutters 22 can weed when the sowing vehicle 1 moves forward; the sowing mechanism 3 comprises a furrowing assembly, a sowing assembly and a soil covering assembly sequentially arranged from front to back on the sowing vehicle 1, the furrowing assembly can dig a sowing furrow in the field when the sowing vehicle 1 moves forward, the sowing assembly comprises a silo 31 and a uniform dropping unit, the uniform dropping unit can evenly drop and distribute the seeds in the silo 31 in the furrow when the sowing vehicle 1 moves forward, and the soil covering assembly can crush the soil excavated by the furrowing assembly and refill it in the furrow when the sowing vehicle 1 moves forward;

[0043] Specifically, when the seeding and weeding machine is used to sow corn and legume crops, the seeds of corn or legume crops are first added to the hopper 31, and then the seeding vehicle 1 is moved forward in the field along the planting direction to drive the weeding mechanism 2 and the seeding mechanism 3 to move forward in the field. At this time, the driving component in the weeding mechanism 2 drives the multiple cutters 22 to rotate synchronously, so that weeding is performed by the rotating cutters 22, and the trenching component in the seeding mechanism 3 digs a trench for sowing at the position after weeding in the field, and the uniform rate dropping unit evenly drops the seeds in the hopper 31 into the trench, and the covering component crushes the soil excavated by the trenching component and refills it into the trench, covering the seeds in the trench, so that the weeding and sowing operations are completed at one time through the cooperation of the weeding mechanism 2 and the seeding mechanism 3, which simplifies the crop planting steps and reduces the crop planting cost and labor intensity; and the covering component crushes the soil and then covers it on the seeds, thereby improving the looseness and air permeability of the covering soil, which is beneficial to the rooting and germination of the seeds.

[0044] Embodiment 2

[0045] See also Figure 1-Figure 3 As shown, the difference between this embodiment and the above embodiment is that the front end of the seeding vehicle 1 is rotatably mounted with an axle 18, both ends of the axle 18 are fixedly mounted with front wheels 11, and the rear side end of the seeding vehicle 1 is rotatably mounted with a rear wheel 12; the top of the seeding vehicle 1 is fixedly mounted with a diesel engine 13 and a gearbox 14 drivingly connected to the output end of the diesel engine 13, the output end of the gearbox 14 is drivingly mounted with an output shaft 15, a travel drive pulley 16 is fixedly mounted on the output shaft 15, one end of the axle 18 is fixedly mounted with a travel driven pulley 19, and the travel drive pulley 16 and the travel driven pulley 19 are connected by a travel drive belt 17;

[0046] During sowing, the diesel engine 13 drives the output shaft 15 to rotate after being transmitted through the gearbox 14. When the output shaft 15 rotates, the axle 18 is driven to rotate through the travel drive pulley 16, the travel drive belt 17 and the travel driven pulley 19, so that the axle 18 drives the front wheel 11 to rotate, and then the sowing vehicle 1 is driven to move forward in the field through the rotation of the front wheel 11 to carry out weeding and sowing.

[0047] Embodiment 3

[0048] See also Figure 1 , Figure 3 , Figure 4 As shown, the difference between this embodiment and the above embodiment is that the weeding mechanism 2 also includes a front bracket 21, which is fixedly installed on the front side of the seeding vehicle 1, and a plurality of equally distributed rotating shafts 23 are rotatably installed on the front bracket 21, and a cutter 22 is fixedly installed on the bottom end of each rotating shaft 23; the driving assembly includes a weeding driving pulley 24, a weeding driving shaft 26 and a plurality of driven bevel gears 29, and the plurality of driven bevel gears 29 are respectively fixedly installed on the top ends of the corresponding rotating shafts 23, and the weeding driving shaft 26 is rotatably installed on the top surface of the front bracket 21, and a plurality of active bevel gears 28 are fixedly installed on the weeding driving shaft 26, and the plurality of active bevel gears 28 are meshed and drivenly connected with the driven bevel gears 29 in a one-to-one correspondence, and a weeding driven pulley 27 is fixedly installed on one end of the weeding driving shaft 26, and the weeding driving pulley 24 is fixedly installed on the axle 18, and the weeding driving pulley 24 and the weeding driven pulley 27 are connected by a weeding driving belt 25.

[0049] When the axle 18 rotates to drive the seeding vehicle 1 forward, the axle 18 drives the weeding drive shaft 26 to rotate through the weeding drive pulley 24, the weeding drive belt 25 and the weeding driven pulley 27. When the weeding drive shaft 26 rotates, it drives multiple active bevel gears 28 thereon to rotate synchronously, so that the active bevel gears 28 engage and drive the corresponding driven bevel gears 29 to rotate. When the driven bevel gears 29 rotate, they drive the cutter 22 to rotate synchronously through the rotating shaft 23, so that the cutter 22 rotates and cuts weeds while the seeding vehicle 1 moves forward.

[0050] Embodiment 4

[0051] See also Figure 1 , Figure 2 As shown, the difference between this embodiment and the above embodiment is that the furrowing assembly includes a cross frame 310, which is fixedly installed on the bottom of the seeding vehicle 1, and a plurality of equidistantly distributed furrowing plows 311 are fixedly installed on the cross frame 310; when the seeding vehicle 1 moves forward, the seeding vehicle 1 drives the furrowing plows 311 to move forward synchronously in the field soil through the cross frame 310, and the furrowing plows 311 can dig a sowing furrow in the field when moving forward for subsequent sowing.

[0052] Embodiment 5

[0053] See also Figure 1 , Figure 2 , Figure 5 , Figure 6 As shown, the difference between this embodiment and the above-mentioned embodiment is that the uniform-speed material dropping unit includes a sowing chamber 33, a sowing driving shaft 34 and a transmission unit, the sowing chamber 33 is fixedly installed on the upper end of the sowing vehicle 1, and a material dropping pipe 318 is connected to the top of the sowing chamber 33, and a material dropping hopper 32 is fixedly installed on the top of the material dropping pipe 318, and the top of the material dropping hopper 32 is communicated with the bottom end of the silo 31; the sowing driving shaft 34 is rotatably installed on the upper end of the sowing vehicle 1, and the sowing driving shaft 34 is coaxially arranged with the sowing chamber 33, one end of the sowing driving shaft 34 is transmission-connected with the output shaft 15 through the transmission unit, a sowing disc 317 located inside the sowing chamber 33 is fixedly installed on the sowing driving shaft 34, the outer ring of the sowing disc 317 is in sliding contact with the inner wall of the sowing chamber 33, and the outer ring of the sowing disc 317 is provided with a sowing groove 320, and a sowing guide pipe 312 is connected to the bottom end of the sowing chamber 33;

[0054] The transmission unit includes a primary transmission pulley 35, a transmission shaft 38 and a secondary driven pulley 316. The primary transmission pulley 35 is fixedly mounted on the output shaft 15. The transmission shaft 38 is rotatably mounted on the upper end of the seeding vehicle 1. The two ends of the transmission shaft 38 are respectively fixedly mounted with a primary driven pulley 37 and a secondary transmission pulley 39. The primary transmission pulley 35 and the primary driven pulley 37 are connected to each other through a primary transmission belt 36. The secondary driven pulley 316 is fixedly mounted on one end of the seeding drive shaft 34. The secondary transmission pulley 39 and the secondary driven pulley 316 are connected to each other through a secondary transmission belt 313.

[0055] When the output shaft 15 rotates to drive the seeding vehicle 1 forward, the output shaft 15 drives the transmission shaft 38 to rotate through the primary transmission pulley 35, the primary transmission belt 36 and the primary driven pulley 37, and then the transmission shaft 38 drives the seeding drive shaft 34 to rotate through the secondary transmission pulley 39, the secondary transmission belt 313 and the secondary driven pulley 316, so that the seeding drive shaft 34 drives the seeding disc 317 to rotate, and when the seeding disc 317 rotates, it drives the seeding trough 320 to make a circular motion in the seeding chamber 33. When the seeding trough 320 moves to the bottom of the drop pipe 318, the crop seeds in the silo 31 enter the seeding chamber through the drop hopper 32 and the drop pipe 318. The seeds in the sowing groove 320 are then driven by the sowing groove 320 to continue rotating until the sowing groove 320 and the seeds move to the top of the sowing guide tube 312. At this time, the seeds in the sowing groove 320 fall into the excavated groove through the sowing guide tube 312, completing a round of sowing process; in this reciprocating manner, through the rotation of the sowing plate 317, the seeds can be continuously and evenly dropped and sown, and the sowing plate 317 is transmission-connected to the driving assembly of the sowing vehicle 1, and can automatically sow when the sowing vehicle 1 is moving. At the same time, the sowing speed is related to the walking speed of the sowing vehicle 1 to ensure that the sowing plate 317 can cooperate with the sowing groove 320 to sow equidistantly when the sowing vehicle 1 is moving, thereby improving the uniformity of sowing.

[0056] Embodiment 6

[0057] See also Figure 5-Figure 8 As shown, the difference between this embodiment and the above-mentioned embodiment is that a bracket 322 is fixedly installed above the inside of the blanking tube 318, and a driving rod 321 is rotatably installed on the bracket 322. The upper end of the driving rod 321 extends into the inside of the blanking hopper 32 and is fixedly installed with a spiral feeding blade 319. The lower end of the driving rod 321 is transmission-connected with a rotating driving unit that can drive the driving rod 321 to rotate; the rotating driving unit includes a lifting rod 323, a plurality of arc-shaped guide grooves 326 and a plurality of lifting guide grooves 332. The plurality of arc-shaped guide grooves 326 and the plurality of lifting guide grooves 332 are sequentially staggered along the circumferential direction on the inner wall of the blanking tube 318, and the arc-shaped guide grooves 326 are inclined so that the two ends of the arc-shaped guide grooves 326 are respectively connected with the top and bottom ends of the adjacent lifting guide grooves 332;

[0058] The lifting rod 323 is provided with a telescopic sliding hole 324 with an upper end opening inside, and the lifting rod 323 is slidably plugged and connected with the lower end of the driving rod 321 through the telescopic sliding hole 324, and a limiting sliding groove 330 is provided on the inner wall of the telescopic sliding hole 324, and a limiting strip 331 slidably engaged with the limiting sliding groove 330 is provided on the outer wall of the driving rod 321, and a return spring 325 abutting against the bottom end of the driving rod 321 is installed inside the telescopic sliding hole 324; a main shaft 329 is fixedly installed on the outer wall of the upper end of the lifting rod 323, and a limiting pin 328 is slidably installed on the outer end of the main shaft 329, and a pressure spring 327 is abutted against the inner side end of the limiting pin 328, and the outer side end of the limiting pin 328 can be lifted and slid along the arc guide groove 326 and the lifting guide groove 332;

[0059] The depth of the arc guide groove 326 gradually becomes shallower from the upper right to the lower right, so that the depth of the top of the arc guide groove 326 is greater than the depth of the top of the lifting guide groove 332, and the depth of the bottom of the arc guide groove 326 is less than the depth of the bottom of the lifting guide groove 332. When sowing, the bottom end of the lifting rod 323 slides and abuts against the outer ring of the sowing plate 317 under the elastic force of the reset spring 325, and the limit pin 328 slides and abuts against the intersection of the arc guide groove 326 and the top of the lifting guide groove 332. When the sowing groove 320 moves under the drop tube 318, the sowing plate 317 The bottom of the lifting rod 323 is no longer limited. At this time, the lifting rod 323 moves downward under the elastic force of the return spring 325, and drives the limiting pin 328 to move downward synchronously. When the limiting pin 328 moves downward, it enters the arc guide groove 326 with a larger groove depth, so that the limiting pin 328 moves downward along the arc guide groove 326. At this time, the limiting pin 328 rotates synchronously under the guidance of the arc guide groove 326 to drive the lifting rod 323 to rotate. When the lifting rod 323 rotates, the driving rod 321 is driven synchronously through the sliding engagement of the limiting slide groove 330 and the limiting strip 331. The lifting rod 323 is pressed against the arc surface of the sowing groove 320, and the lifting rod 323 drives the limit pin 328 to move upward and reset at the junction of the arc guide groove 326 and the bottom end of the lifting guide groove 332. When the limit pin 328 is reset upward, it can be pressed against the pressure spring 324 to release the pressure drop. Under the elastic force of spring 327, it slides and snaps into the lifting guide groove 332 with a larger groove depth, so that the limit pin 328 rises vertically and resets, so that it will not continue to drive the lifting rod 323, the driving rod 321 and the spiral feeding blade 319 to rotate when resetting; in this reciprocating manner, whenever the sowing groove 320 moves below the drop tube 318, the spiral feeding blade 319 can be automatically driven to rotate once through the rotation drive unit, so as to transport and drop seeds through the spiral feeding blade 319, prevent the seeds from clogging the drop tube 318, and ensure the normal sowing process.

[0060] Embodiment 7

[0061] See also Figure 1 , Figure 2 , Fig. 9 , Fig.10As shown, the difference between this embodiment and the above embodiment is that the soil covering assembly includes a soil crushing drive shaft 315, a soil crushing drive pulley 333 and an aggregate soil landfill frame 336, the aggregate soil landfill frame 336 is fixedly installed at the bottom of the seeding vehicle 1 and is located below the rear side of the seeding guide tube 312, the soil crushing drive shaft 315 is rotatably installed above the aggregate soil landfill frame 336, a soil crushing roller 314 located inside the aggregate soil landfill frame 336 is fixedly installed on the soil crushing drive shaft 315, a soil crushing driven pulley 335 is fixedly installed at one end of the soil crushing drive shaft 315, the soil crushing drive pulley 333 is fixedly installed at one end of the seeding drive shaft 34, and the soil crushing drive pulley 333 and the soil crushing driven pulley 335 are connected through a soil crushing drive belt 334.

[0062] Among them, the soil-collecting landfill frame 336 is a V-shaped structure. When the soil-collecting landfill frame 336 moves forward with the seeding vehicle 1, the soil excavated on both sides of the seeding groove can be gathered and transported into the groove. At the same time, the seeding drive shaft 34 drives the soil crushing drive shaft 315 to rotate through the soil crushing drive pulley 333, the soil crushing drive belt 334 and the soil crushing driven pulley 335, so that the soil crushing drive shaft 315 drives the soil crushing roller 314 to rotate. When the soil crushing roller 314 rotates, it can hit and crush the excavated soil gathered in the direction of the groove, so that the soil finally buried in the groove is looser, thereby improving the looseness and air permeability of the covering soil, which is beneficial to the rooting and germination of seeds.

[0063] In the description of this specification, the description with reference to the terms "one embodiment", "example", "specific example", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] The preferred embodiments of the invention disclosed above are only used to help explain the invention. The preferred embodiments do not describe all the details in detail, nor do they limit the invention to the specific implementation methods described. Obviously, many modifications and changes can be made according to the content of this specification. This specification selects and specifically describes these embodiments in order to better explain the principles and practical applications of the invention, so that those skilled in the art can understand and use the invention well.

Claims

1. A corn and leguminous crop sowing and weeding integrated machine, comprising a sowing vehicle, characterized in that: The sowing vehicle is provided with a weeding mechanism and a sowing mechanism from front to back, wherein the weeding mechanism comprises a driving assembly and a plurality of cutting knives, and the driving assembly can drive the plurality of cutting knives to rotate synchronously, so that the cutting knives can weed when the sowing vehicle moves forward; The sowing mechanism includes a furrowing component, a sowing component and a soil covering component which are arranged in sequence from front to back on the sowing vehicle. The furrowing component can dig a sowing groove in the field when the sowing vehicle moves forward. The sowing component includes a silo and a uniform material dropping unit. The uniform material dropping unit can evenly drop the seeds in the silo into the groove when the sowing vehicle moves forward. The soil covering component can crush the soil excavated by the furrowing component and refill it into the groove when the sowing vehicle moves forward.

2. The corn and leguminous crop sowing and weeding integrated machine according to claim 1, characterized in that: The front end of the sowing vehicle is rotatably mounted with an axle, both ends of the axle are fixedly mounted with front wheels, and the rear side end of the sowing vehicle is rotatably mounted with rear wheels; A diesel engine and a gearbox transmission-connected to the output end of the diesel engine are fixedly mounted on the top of the seeding vehicle; an output shaft is transmission-mounted on the output end of the gearbox; a travel drive pulley is fixedly mounted on the output shaft; a travel driven pulley is fixedly mounted on one end of the axle; the travel drive pulley and the travel driven pulley are transmission-connected via a travel drive belt.

3. The corn and leguminous crop sowing and weeding integrated machine according to claim 2, characterized in that: The weeding mechanism also includes a front bracket, which is fixedly installed on the front side of the seeding vehicle. A plurality of equally spaced rotating shafts are rotatably installed on the front bracket, and the cutter is fixedly installed on the bottom end of each rotating shaft.

4. The corn and leguminous crop sowing and weeding integrated machine according to claim 3, characterized in that: The driving assembly includes a weeding drive pulley, a weeding drive shaft and a plurality of driven bevel gears, wherein the plurality of driven bevel gears are respectively fixedly mounted on the top ends of corresponding rotating shafts, the weeding drive shaft is rotatably mounted on the top surface of the front bracket, a plurality of active bevel gears are fixedly mounted on the weeding drive shaft, and the plurality of active bevel gears are meshed and driven in a one-to-one correspondence with the driven bevel gears, a weeding driven pulley is fixedly mounted on one end of the weeding drive shaft, the weeding drive pulley is fixedly mounted on the axle, and the weeding drive pulley and the weeding driven pulley are connected through a weeding drive belt transmission.

5. The corn and leguminous crop sowing and weeding integrated machine according to claim 1, characterized in that: The furrowing assembly comprises a cross frame which is fixedly mounted on the bottom of the seeding vehicle, and a plurality of furrowing plows which are equidistantly distributed are fixedly mounted on the cross frame.

6. The corn and leguminous crop sowing and weeding integrated machine according to claim 2, characterized in that: The uniform-speed dropping unit comprises a sowing chamber, a sowing drive shaft and a transmission unit, wherein the sowing chamber is fixedly mounted on the upper end of the sowing vehicle, a dropping pipe is connected to the top of the sowing chamber, a dropping hopper is fixedly mounted on the top of the dropping pipe, and the top of the dropping hopper is connected to the bottom of the silo; The sowing drive shaft is rotatably mounted on the upper end of the sowing vehicle, and the sowing drive shaft is coaxially arranged with the sowing chamber, one end of the sowing drive shaft is transmission-connected with the output shaft via a transmission unit, a sowing plate located inside the sowing chamber is fixedly mounted on the sowing drive shaft, an outer ring of the sowing plate is in sliding contact with the inner wall of the sowing chamber, and a sowing groove is arranged on the outer ring of the sowing plate, and a sowing guide pipe is connected and mounted on the bottom end of the sowing chamber.

7. The corn and leguminous crop sowing and weeding integrated machine according to claim 6, characterized in that: The transmission unit includes a primary transmission pulley, a transmission shaft and a secondary driven pulley, the primary transmission pulley is fixedly mounted on the output shaft, the transmission shaft is rotatably mounted on the upper end of the seeding vehicle, a primary driven pulley and a secondary transmission pulley are fixedly mounted on both ends of the transmission shaft, the primary transmission pulley is connected to the primary driven pulley via a primary transmission belt, the secondary driven pulley is fixedly mounted on one end of the seeding drive shaft, and the secondary transmission pulley is connected to the secondary driven pulley via a secondary transmission belt.

8. The corn and leguminous crop sowing and weeding integrated machine according to claim 6, characterized in that: A bracket is fixedly installed above the inside of the drop tube, and a driving rod is rotatably installed on the bracket. The upper end of the driving rod extends into the inside of the drop hopper and is fixedly installed with a spiral feeding blade. The lower end of the driving rod is transmission-connected with a rotating driving unit that can drive the driving rod to rotate.

9. The corn and leguminous crop sowing and weeding integrated machine according to claim 8, characterized in that: The rotary drive unit comprises a lifting rod, a plurality of arc-shaped guide grooves and a plurality of lifting guide grooves, wherein the plurality of arc-shaped guide grooves and the plurality of lifting guide grooves are staggeredly distributed in sequence along the circumferential direction on the inner wall of the blanking tube, and the arc-shaped guide grooves are inclined so that the two ends of the arc-shaped guide grooves are respectively connected with the top end and the bottom end of the adjacent lifting guide grooves; The lifting rod is provided with a telescopic sliding hole with an upper end opening inside, and the lifting rod is slidably plugged and connected with the lower end of the driving rod through the telescopic sliding hole, a limiting sliding groove is provided on the inner wall of the telescopic sliding hole, and a limiting strip slidably engaged with the limiting sliding groove is provided on the outer wall of the driving rod, and a return spring abutting against the bottom end of the driving rod is installed inside the telescopic sliding hole; A main shaft is fixedly installed on the outer wall of the upper end of the lifting rod, a limit pin is slidably installed on the outer end of the main shaft, a pressure spring is abutted against the inner end of the limit pin, and the outer end of the limit pin can slide and rise along the arc guide groove and the lifting guide groove.

10. The corn and leguminous crop sowing and weeding integrated machine according to claim 6, characterized in that: The soil covering assembly includes a soil crushing drive shaft, a soil crushing drive pulley and a polymer soil landfill frame. The polymer soil landfill frame is fixedly installed at the bottom of the seeding vehicle and is located below the rear side of the seeding guide pipe. The soil crushing drive shaft is rotatably installed above the polymer soil landfill frame. A soil crushing roller located inside the polymer soil landfill frame is fixedly installed on the soil crushing drive shaft. A soil crushing driven pulley is fixedly installed at one end of the soil crushing drive shaft. The soil crushing drive pulley is fixedly installed at one end of the seeding drive shaft. The soil crushing drive pulley and the soil crushing driven pulley are connected through a soil crushing drive belt transmission.

Images