Sunflower harvester

Abstract

The utility model relates to agricultural harvesting equipment technical field especially discloses a sunflower harvester, including frame, the frame top front fixed positive pressure type cab, the frame top rear end is equipped with the power system of power supply, install between power system with the positive pressure type cab can overturn sunflower tray storage material box to frame one side, the frame rear end is equipped with the kernel collection box that can overturn frame one side, the frame front end is equipped with the cutting -off integrated header of adjustable cutting angle through detachable connection installation, one side of frame is provided with the sunflower tray conveying device that connects sunflower tray outlet of cutting -off integrated header sunflower tray and sunflower tray storage material box, the frame lower extreme is provided with the cleaning mechanism. Advantageous effect lies in: the unique cutting -off structure makes sunflower tray not to adopt the traditional broken, stirring, threshing mode, and the threshing mode of spiral rolling makes sunflower tray complete threshing under the intact condition, reduces the rate of skinning.

Description

Technical Field

[0001] This utility model relates to the field of agricultural harvesting equipment technology, and in particular to a sunflower harvester. Background Technology

[0002] Sunflowers are an important oilseed and food processing crop in my country, and have become a major economic crop in rural areas. It is reported that oilseed sunflowers have become one of my country's nine major oilseed crops. Sunflowers in my country are mostly grown in the cold northern regions, primarily concentrated in Northeast China, Hebei, Shanxi, Inner Mongolia in North China, and Ningxia, Gansu, Shaanxi, and Xinjiang in Northwest China. They are mostly distributed in arid, barren, and saline-alkali lands, serving as an important source of income for local farmers to escape poverty. With the continuous expansion of sunflower planting areas, sunflower harvesting has become a major problem for growers. Previously, sunflowers were harvested by simply changing the header of wheat or corn harvesters. Due to the differences in planting methods for wheat, corn, and sunflowers, the headers were not well-matched, resulting in a high rate of loss due to collisions. Furthermore, before harvesting, sunflower heads had to be manually cut and then left to dry (heads facing upwards) before being harvested by a combine harvester. This involved high labor input and intensity. If it rained while drying, the heads would rot and deteriorate (rainwater would seep into the gaps between the seeds if the heads faced upwards), resulting in a complete crop failure for that season. Therefore, machines specifically designed for harvesting sunflowers have emerged. For example, Chinese patent application number 201610811908.X discloses a self-propelled sunflower combine harvester. The harvesting platform of the combine harvester is hinged to the front of the main frame and located below the cab. The threshing device is installed at the outlet end of the inclined conveyor, the straw collector is installed at the rear of the threshing device, the straw chopping and returning device is installed below the harvesting platform, and a sliding plate is also provided at the rear of the straw collector. An automatic sunflower tray collection and unloading device is installed below and behind the sliding plate. Chinese patent application number 201820097856.9 discloses a sunflower harvester, belonging to the field of agricultural harvesting machinery. It includes a harvesting platform, a conveying system, a threshing system, a cleaning system, a pneumatic grain conveying system, and a power system for providing power. The threshing system is equipped with a sunflower cake bin at the end, and the pneumatic grain conveying system is equipped with a seed bin at the end. The harvesting platform is connected to the conveying system. The conveying system transports the sunflower heads harvested by the harvesting platform to the threshing system for threshing. The seeds threshed by the threshing system enter the cleaning system for cleaning. The threshed sunflower heads enter the sunflower cake bin, and the cleaned seeds enter the seed bin through the pneumatic grain conveying system.

[0003] After sunflowers mature, existing harvesters thresh the seeds at the rear end, and the sunflower heads break after threshing, resulting in low recovery rates. The path to the rear end is too long, leading to high peeling rates, unsatisfactory appearance, and low economic output. Utility Model Content

[0004] This utility model is proposed to solve the above-mentioned problems by providing a sunflower harvester.

[0005] The technical solution of this utility model is implemented as follows:

[0006] A sunflower harvester includes a frame, a positive-pressure cab fixed to the front upper part of the frame, a power system installed at the rear upper part of the frame, a sunflower seed tray storage box that can be tilted to one side of the frame installed between the power system and the positive-pressure cab, and a seed collection box that can be tilted to one side of the frame installed at the rear end of the frame. A hydraulic system is provided between the positive-pressure cab and the sunflower seed tray storage box, and a first hydraulic push rod is provided on one side of the sunflower seed tray storage box to drive it to tilt. A second hydraulic push rod is provided on one side of the grain collection box to drive the grain collection box to flip. An adjustable-angle cutting and threshing integrated cutting table is detachably connected to the front end of the frame. A sunflower tray conveying device is provided on one side of the frame, connecting the sunflower tray discharge port of the cutting and threshing integrated cutting table and the sunflower tray storage box. A cleaning mechanism is provided at the lower end of the frame. The inlet end of the cleaning mechanism is connected to the grain outlet of the cutting and threshing integrated cutting table through the grain conveying mechanism. The outlet end of the cleaning mechanism is connected to the grain collection box as a whole through the air duct.

[0007] Furthermore, both the sunflower tray storage box and the seed collection box are equipped with full alarm devices to monitor the storage capacity.

[0008] Furthermore, infrared cameras connected to the positive pressure cab control system are installed on both sides of the vehicle frame.

[0009] Furthermore, an air conditioning system for regulating the internal temperature and air pressure is fixed to the top of the positive pressure cab.

[0010] Furthermore, the positive-pressure cab is fitted with solar panels on its roof that convert light energy into electrical energy.

[0011] Furthermore, the grain conveying mechanism includes a first frame, within which two sets of synchronously rotating conveying chains are rotatably installed. Between the two sets of conveying chains are several conveying scrapers for pushing grains. At both ends of the first frame are respectively provided horn hoppers for receiving and discharging grains.

[0012] Furthermore, the cleaning mechanism includes a vibrating screen located below the grain discharge hopper of the grain conveying mechanism. A collector is provided below the vibrating screen, and a spiral conveying blade is rotatably installed inside the collector. A conversion cylinder is installed at the end of the spiral conveying blade. A soft brush is fixed to the edge of the spiral conveying blade. A feeding fan is installed at one end of the conversion cylinder, and the other end of the conversion cylinder is connected to the air duct. A cleaning fan with an air outlet facing the vibrating screen is fixed on the side wall of the collector.

[0013] Furthermore, the integrated harvesting and threshing header includes a header frame. Several dividers are fixed side-by-side below the front end of the header frame. A stalk-pulling roller is rotatably mounted on the header frame below each divider. A cutter assembly is installed between the divider and the stalk-pulling roller to separate the sunflower heads from the stalks. One end of the cutter assembly is connected to a reversing box that drives the cutter assembly. A traction frame, which is attached to the harvester body, is fixed to the rear side below the header frame. A sunflower head conveyor for receiving sunflower heads is installed in the middle of the header frame near the cutter assembly. A transition shaft is rotatably mounted above the middle of the header frame, and a guide for sunflower heads is rotatably mounted on the transition shaft. The device includes a pressing device for lowering the threshing disc, a threshing mechanism installed at the rear end of the header frame, a tray conveyor connected to the threshing mechanism via a feeding transition plate, a transverse conveyor fixed to the header frame below the threshing mechanism, a tray conveyor box installed at one end of the threshing mechanism, and a first power input shaft and a second power input shaft rotatably connected to the power system on both sides of the rear end of the header frame via bearing seats. The first power input shaft is connected to the threshing mechanism, the transverse conveyor, and the reversing box, while the second power input shaft is connected to the stalk pulling roller and the tray conveyor.

[0014] Furthermore, a dividing wheel is rotatably mounted on the end of the divider away from the cutter assembly, and brushes are provided on both sides of the cutter assembly to prevent grains from falling off. A support rod for supporting the divider is fixed at the front end of the header frame.

[0015] Furthermore, the cutter assembly includes a fixed base fixed on the cutter frame. A power shaft is rotatably mounted on the fixed base via bearings. A rotating disk is fixed to one end of the power shaft. A side arm is provided on one side of the fixed base, and an upper curved arm is rotatably mounted on the side arm. A connecting rod and a lower curved arm are rotatably mounted on the other end of the upper curved arm via a pin. The end of the connecting rod away from the upper curved arm is rotatably mounted on an eccentric position on the side wall of the rotating disk via bearings. A slider is fixed to the end of the lower curved arm away from the upper curved arm via a pin. The slider is detachably connected to a sliding strip slidably mounted on the cutter frame. A plurality of cutting blades are detachably mounted on the sliding strip. The cutting blades correspond to the cutting positions of the divider. A blade protector is fixed on the cutter frame at the position corresponding to the cutting blade to protect the cutting blade.

[0016] Furthermore, several sets of toothed plates are fixed at equal intervals on the outer wall of the stalk-pulling roller. Each set of toothed plates includes at least one metal plate, and each set of toothed plates is positioned directly opposite the center of two adjacent dividers.

[0017] Furthermore, the pressure plate device includes an upper fixed frame rotatably mounted on the transition shaft. An outwardly protruding arc plate is fixed to one end of the upper fixed frame away from the transition shaft. A hydraulic rod for driving the pressure plate device to pitch and swing is hinged to one end of the upper fixed frame near the transition shaft. A reel is rotatably mounted on one end of the upper fixed frame near the arc plate via a bearing seat. The reel is connected to the sunflower tray conveyor. Side baffles for protecting the sides of the cutting table are bolted to both sides of the reel.

[0018] Furthermore, the reel includes a roller, on which at least two fixing plates are welded in an annular array. The fixing plates are arranged along the length of the roller, and each fixing plate is equipped with several mounting brackets at equal intervals. The end of each mounting bracket away from the roller is detachably connected to a first reel plate.

[0019] Furthermore, the sunflower tray conveyor includes an arc-shaped outer cylinder, and an auger shaft is rotatably installed inside the arc-shaped outer cylinder. At least one second deflector plate that deflects the sunflower tray toward the feeding transition plate is welded to the outer wall of the auger shaft near the feeding transition plate. A spiral auger for axially conveying the sunflower tray is fixed to the outer wall of the other end of the auger shaft.

[0020] Furthermore, the threshing mechanism includes a coaxially arranged screw conveyor and screw crushing threshing section. The screw conveyor is located above the feed transition plate, and a concave screen mounted on the cutting table is provided below the screw crushing threshing section.

[0021] Furthermore, the feeding transition plate has grooves formed in the middle for filtering sunflower seeds.

[0022] Furthermore, the sunflower tray conveyor box is equipped with a sunflower tray slinger that rotates coaxially with the spiral crushing and threshing section.

[0023] Furthermore, an auger is provided inside the transverse conveyor, and a grain outlet is provided below the transverse conveyor at the position corresponding to the end of the auger, with the grain outlet facing the grain receiving hopper of the grain conveying mechanism.

[0024] The beneficial effects of this utility model, achieved by adopting the above technical solution, are as follows: Direct harvesting of sunflower heads eliminates the need for manual cutting and drying, reducing labor costs and mitigating the impact of rain on sunflower harvesting, thus minimizing losses for growers; the unique cutting and threshing structure eliminates the need for traditional crushing, mixing, and threshing methods, allowing the sunflower heads to be threshed while remaining intact, reducing the rate of skin breakage; the rational structural layout integrates the threshing process pre-positioned within the cutting platform, and through a series of optimized designs such as short-path conveying, gentle threshing, effective seed feeding, and timely separation, it effectively solves key pain points in existing technologies, such as high seed damage, high loss rate, difficulty in sunflower head recovery, reliance on manual drying, and missed / incomplete threshing, achieving efficient, low-loss, high-quality, and high-profit mechanized harvesting of sunflowers. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is the front view of this utility model;

[0027] Figure 2 This is a rear view of the present invention;

[0028] Figure 3 This is a bottom view of the present invention;

[0029] Figure 4 This is a cross-sectional view of the present invention;

[0030] Figure 5 This is a schematic diagram of the sunflower tray conveying device of this utility model;

[0031] Figure 6 This is a schematic diagram of the grain conveying mechanism of this utility model;

[0032] Figure 7 This is a schematic diagram of the cleaning mechanism of this utility model;

[0033] Figure 8 This is a cross-sectional view of the cleaning mechanism of this utility model;

[0034] Figure 9 This is a first perspective view of the integrated cutting and stripping cutting platform of this utility model;

[0035] Figure 10 This is a second perspective view of the integrated cutting and stripping cutting platform of this utility model;

[0036] Figure 11 This is a top view of the integrated cutting and stripping cutting table of this utility model;

[0037] Figure 12 This is a left view of the integrated cutting and stripping cutting table of this utility model;

[0038] Figure 13 This is a right view of the integrated cutting and stripping cutting table of this utility model;

[0039] Figure 14 This is a cross-sectional view of the integrated cutting and stripping cutting platform of this utility model;

[0040] Figure 15 This is a schematic diagram of the integrated cutting and threshing header reel structure of this utility model;

[0041] Figure 16 This is a schematic diagram of the integrated cutting and stripping header tray conveyor of this utility model;

[0042] Figure 17 This is a schematic diagram of the integrated cutting and threshing mechanism of the present invention.

[0043] Figure 18 This is a schematic diagram of the integrated cutting and threshing cutting platform and concave screen structure of this utility model;

[0044] Figure 19 This is a schematic diagram of the feeding transition plate structure of the integrated cutting and stripping cutting table of this utility model;

[0045] Figure 20 This is a schematic diagram of the integrated cutting and stalk pulling roller structure of this utility model;

[0046] Figure 21 This is a schematic diagram of the integrated cutting and stripping cutting table and cutting blade assembly of this utility model;

[0047] Figure 22 This is a schematic diagram of the integrated cutting and stripping cutter guard of this utility model;

[0048] Figure 23 This is a schematic diagram of the integrated cutting and detaching cutting platform tray conveyor box structure of this utility model;

[0049] Figure 24 This is a schematic diagram of the integrated cutting and stripping cutting table of this utility model.

[0050] The annotations in the attached figures are explained as follows:

[0051] 1. Chassis; 2. Positive pressure cab; 3. Integrated cutting and threshing platform; 4. Sunflower tray conveyor; 41. Second frame; 42. Conveyor belt; 43. Second scraper; 44. Side plate; 5. Sunflower tray storage bin; 6. Grain conveying mechanism; 61. First frame; 62. Conveyor chain; 63. Conveyor scraper; 7. Cleaning mechanism; 71. Vibrating screen; 72. Collector; 73. Spiral conveyor blades; 74. Soft brush; 75. Cleaning blower; 76. Converter drum; 8. Feeding blower; 9. Air duct; 10. Grain collection bin; 11. Power system; 12. Hydraulic system; 13. First hydraulic push rod; 14. Second hydraulic push rod; 15. Air conditioning system; 16. Solar panel; 17. Full bin alarm; 18. Infrared camera;

[0052] 31. Dividing reel; 32. Divider; 33. Pressing plate device; 331. Upper fixed frame; 332. Arc plate; 333. Reel; 3331. Roller; 3332. Fixed plate; 3333. Mounting frame; 3334. First push plate; 334. Hydraulic rod; 335. Side baffle; 34. Support rod; 35. Stalk puller roller; 351. Toothed plate; 36. Reversing box; 37. Cutter assembly; 371. Fixed base; 372. Drive shaft; 373. Rotating wheel; 374. Connecting rod; 375. Upper curved arm; 376. Lower curved arm; 377. Slider; 378. Sliding bar; 379. 38. Cutting blade; 39. Transition shaft; 30. Sunflower tray conveyor; 31. Screw shaft; 32. Spiral auger; 33. Second deflector; 34. Feeding transition plate; 35. Threshing mechanism; 36. Spiral conveyor; 37. Spiral crushing and threshing section; 38. Concave screen; 39. Traction frame; 30. Sunflower tray conveyor box; 31. Sunflower tray roller; 31. Transition roller; 31. Brush; 31. Cutting table frame; 32. Blade protector; 33. First power input shaft; 34. Transverse conveyor; 35. Second power input shaft; 36. Pellet outlet. Detailed Implementation

[0053] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0054] like Figures 1-4As shown, a sunflower harvester includes a frame 1 with two sets of wheels underneath. These wheels can move using four-wheel drive, front-wheel drive, or rear-wheel drive. Each set of wheels can be directly driven by an electric motor, a hydraulic motor, or a gearbox connected to a power system 11 for mechanical drive. A positive-pressure cab 2 is fixed to the front of the frame 1. The positive-pressure cab 2 houses a vehicle control system for easy operation by the driver. The harvester's control system is the same as or similar to traditional harvester systems and is considered prior art, therefore not described in detail. A power system 11, which converts fuel into kinetic energy, such as a fuel engine, is installed at the rear of the frame 1. A sunflower seed tray storage box 5, which can be tilted to one side of the frame 1, is installed between the power system 11 and the positive pressure cab 2. This box is used to collect the sunflower seed trays after threshing, thus improving their utilization rate (sunflower seed trays and stalks have medicinal and feed value). A seed collection box 10, which can be tilted to one side of the frame 1, is installed at the rear end of the frame 1 to collect sunflower seeds. A hydraulic system 12 is installed between the positive pressure cab 2 and the sunflower seed tray storage box 5. A first hydraulic push rod 13 is installed on one side of the sunflower seed tray storage box 5 to drive it to tilt. When the sunflower seed tray storage box 5 is full or after harvesting, the hydraulic system 12 pushes the sunflower seed tray storage box 5 to one side of the machine via the first hydraulic push rod 13. The sunflower heads stored inside are emptied into a combined operation vehicle for transfer, thus achieving complete sunflower head recovery and directly eliminating the need for manual collection and transfer in the field, greatly reducing labor intensity and secondary cost input. A second hydraulic push rod 14 is installed on one side of the seed collection box 10 to drive it to rotate. When the seed collection box 10 is full or after harvesting, the hydraulic system 12 pushes the seed collection box 10 to one side of the machine via the second hydraulic push rod 14, allowing the stored seeds to be emptied into the combined operation vehicle for transfer. A detachable, adjustable-angle cutting and threshing integrated header 3 is installed at the front end of the frame 1, and a sunflower head discharge outlet connected to the cutting and threshing integrated header 3 is provided on one side of the frame 1. The sunflower tray conveying device 4 of the sunflower tray storage box 5 is a bucket elevator that sends the threshed sunflower trays discharged from the integrated cutting and threshing head 3 into the sunflower tray storage box 5. A cleaning mechanism 7 is provided at the lower end of the frame 1. The inlet end of the cleaning mechanism 7 is connected to the seed outlet of the integrated cutting and threshing head 3 through a seed conveying mechanism 6. The seed conveying mechanism 6 can be used to transport the sunflower seeds discharged from the integrated cutting and threshing head 3 to the cleaning mechanism 7 for impurity removal. The outlet end of the cleaning mechanism 7 is connected to the seed collection box 10 through an air duct 9. A feeding fan 8 connected to the air duct 9 is installed on one side of the cleaning mechanism 7. The feeding fan 8 is used to send the impurity removed seeds into the seed collection box 10 through the air duct 9.

[0055] In this embodiment, both the sunflower tray storage box 5 and the seed collection box 10 are fixed with full-capacity alarms 17 (at s1 and s2) to monitor the storage capacity. The full-capacity alarms 17 can use the technology disclosed in the patent with patent number 201320760912.X to detect the full-capacity status in a timely manner.

[0056] In this embodiment, infrared cameras 18 and reversing radars connected to the vehicle control system inside the positive pressure cab 2 are installed on both sides of the frame 1. The combination of visual cameras and reversing radars can improve the safety of the driver during daytime and nighttime operations. The infrared cameras 18 can be installed at s3, s4, and s5 on both sides of the machine.

[0057] In this embodiment, the positive pressure cab 2 is fixed with an air conditioning system 15 that regulates its internal temperature and air pressure. The air conditioning system 15 can supply air to the cab to maintain a positive pressure state, preventing dust from entering the cab, protecting the driver's working environment and health, and regulating the internal temperature of the cab to provide a comfortable constant temperature environment for the driver.

[0058] In this embodiment, the top of the positive pressure cab 2 is fixed with a solar panel 16 that converts light energy into electrical energy, which can provide lighting and heating for the cab for a certain period of time without starting the engine, thereby achieving cost savings.

[0059] like Figure 5 As shown, in this embodiment, the sunflower tray conveying device 4 includes a second frame 41, a conveyor belt 42 is rotatably mounted on the second frame 41, a plurality of second scrapers 43 perpendicular to the belt surface are fixed on the surface of the conveyor belt 42, and side plates 44 are provided on both sides of the second frame 41 to prevent the sunflower trays from falling off the sides of the conveyor belt 42.

[0060] like Figure 6 As shown, in this embodiment, the grain conveying mechanism 6 includes a first frame 61, in which two sets of synchronously rotating conveying chains 62 are rotatably installed. Between the two sets of conveying chains 62, a plurality of conveying scrapers 63 for pushing grains are installed. At both ends of the first frame 61, there are horn hoppers for receiving grains and discharging grains, respectively. The grain conveying mechanism 6 is driven to rotate by the power generated by the power system 11 to complete the transport of grains.

[0061] like Figure 7 , Figure 8As shown, in this embodiment, the cleaning mechanism 7 includes a vibrating screen 71 located below the seed discharge hopper of the seed conveying mechanism 6. The vibrating screen 71 includes at least one layer of fish-scale screen mesh, which can be replaced according to the harvested variety to ensure that plump sunflower seeds can fall directly through the screen holes into the collector 72. A power shaft is mounted on one end of the vibrating screen 71 via an eccentric bearing, and the other end is hinged to the frame 1. The power generated by the power system 11 drives the screening of the harvested seeds. A collector 72 is set below the vibrating screen 71, and a spiral conveying blade 73 is rotatably installed inside the collector 72. A conversion cylinder 76 is installed at the end of the spiral conveying blade 73, and a soft brush 74 is fixed to the edge of the spiral conveying blade 73 to reduce the number of seeds. In case of damage, a feeding fan 8 is installed at one end of the conversion drum 76, and the other end of the conversion drum 76 is connected to the air duct 9. A cleaning fan 75 with an air outlet facing the vibrating screen 71 is fixed on the side wall of the collector 72. The cleaning fan 75 and the spiral conveyor blades 73 are both connected to the power system 11. The cleaning fan 75 blows the light debris, petals and empty shells carried in the grains out of the vibrating screen 71. After screening, the grains fall into the collector 72. The spiral conveyor blades 73 transport the grains to the conversion drum 76. The air force generated by the feeding fan 8 blows them into the top of the grain collection box 10. Then, under the action of gravity, the grains automatically fall into the grain collection box 10, reducing the impurity rate, the skinning rate and the carry-away rate, improving the subsequent cleaning efficiency, thereby achieving energy saving and consumption reduction.

[0062] like Figures 9-14As shown, in this embodiment, the integrated harvesting and threshing header 3 includes a header frame 315. Several dividers 32 are fixed side-by-side below the front end of the header frame 315. A stem-pulling roller 35 is rotatably mounted on the header frame 315 below each divider 32. The stem-pulling roller 35 is used to restrict the sunflower stalk, causing it to bend downwards so that the sunflower head approaches the divider 32, and to adjust the plant's posture. This is particularly helpful in handling slightly tilted plants, straightening and aligning them. A cutter assembly 37 is installed between the divider 32 and the stem-pulling roller 35 to separate the sunflower head from the stalk. One end of the cutter assembly 37 is connected to a reversing box 36 that drives the cutter assembly 37. The header frame 315... Two traction frames 312 are fixed to the lower rear side and are attached to the harvester body. The lower end of the integrated threshing and cutting header 3 is fixed to the frame 1 by a pin passing through the traction frames 312. A hydraulic telescopic rod is installed between the upper end of the integrated threshing and cutting header 3 and the frame 1 to drive its rotation. The driver adjusts the height of the integrated threshing and cutting header 3 by controlling the extension and retraction of the hydraulic telescopic rod. A sunflower tray conveyor 39 is installed in the middle of the header frame 315 near the cutter assembly 37 to receive the sunflower trays. After the cutter assembly 37 separates the sunflower trays from the stalks, the reel 333 feeds them into the sunflower tray conveyor 39. A transition shaft is rotatably installed in the upper middle part of the header frame 315. 38. A pressure plate device 33 for guiding the sunflower discs downwards is rotatably mounted on the transition shaft 38. A threshing mechanism 311 for threshing is installed at the rear end of the header frame 315. The sunflower disc conveyor 39 is connected to the threshing mechanism 311 via a feeding transition plate 310. The sunflower disc is conveyed by the sunflower disc conveyor 39 to one end near the feeding transition plate 310, and then the sunflower disc automatically transitions into the threshing mechanism 311. A transverse conveyor 318 fixed on the header frame 315 is provided below the threshing mechanism 311. The transverse conveyor 318 collects the threshed sunflower seeds and conveys them to the seed conveying mechanism 6. A threshing mechanism 311 is installed at one end. The sunflower tray conveyor box 313 is used to transport the threshed sunflower trays to the sunflower tray conveying device 4. A first power input shaft 317 and a second power input shaft 319 are rotatably mounted on both sides of the rear end of the header frame 315 via bearing seats. The first power input shaft 317 is connected to the threshing mechanism 311 and the transverse conveyor 318 via chain drive. The threshing mechanism 311 is connected to the reversing box 36 via belt drive. The second power input shaft 319 is connected to the stalk pulling roller 35 and the sunflower tray conveyor 39 via chain drive. The first power input shaft 317 and the second power input shaft 319 are connected to the power system 11 to transmit power. Power is rationally distributed: the first power input shaft 317 drives threshing, transverse conveying, and cutting; the second power input shaft 319 drives the stalk pulling roller 35 and the sunflower tray conveyor 39. This clear division of labor results in high transmission efficiency.During the harvesting process, the sunflower stalks pass through the channel under the action of the divider 32; under the action of the guard plate, the sunflower stalks tilt forward; as the machine continues to move forward, the sunflower stalks are pulled downward by the contacting pull roller 35; at the same time, the sunflower discs move backward under the action of the reel 333, and during the backward movement, they pass through the cutter 379, separating the sunflower discs from the sunflower stalks; finally, under the action of the auger 392 and the second reel 393, the sunflower discs are conveyed to the threshing mechanism 311. All key components (dividing, cutting, conveying, threshing, and separating) are highly integrated into a header frame, with a compact structure and convenient connection to the main machine, achieving true "harvesting and threshing integration". The pre-positioned gentle threshing method (crushing + friction) and rapid separation maintain the relative integrity of the sunflower discs, improving the recycling rate.

[0063] like Figure 9 , Figure 11 As shown, in this embodiment, a dividing wheel 31 is rotatably mounted on the end of the divider 32 away from the cutter assembly 37. The rotating dividing wheel 31 prevents sunflower stalks from getting stuck at the pointed end of the divider 32, ensuring effective feeding of the tilted plants and reducing threshing losses. Brushes 314 are provided on both sides of the cutter assembly 37 to prevent seeds from falling off. By setting brushes 314 between the dividers 32, both the smooth passage of sunflower stalks and the prevention of seed loss are ensured; sunflowers in various stages can be harvested, making it highly adaptable.

[0064] like Figure 10 As shown, in this embodiment, a support rod 34 for supporting the divider 32 is fixed at the front end of the header frame 315. One end of the support rod 34 is fixed below the divider 32, and the other end of the support rod 34 is installed on the header frame 315 to reinforce and support the divider 32, so as to prevent the divider 32 from tilting downward and being damaged by excessive force when the front end of the divider 32 is suspended in the air.

[0065] like Figure 21As shown, in this embodiment, the cutter assembly 37 includes a fixed base 371 fixed on the cutter frame 315. A power shaft 372 is rotatably mounted on the fixed base 371 via bearings. A rotating disk 373 is fixed to one end of the power shaft 372. A side arm is provided on one side of the fixed base 371, and an upper curved arm 375 is rotatably mounted on the side arm. A connecting rod 374 and a lower curved arm 376 are rotatably mounted on the other end of the upper curved arm 375 via a pin. The end of the connecting rod 374 away from the upper curved arm 375 is rotatably mounted on the eccentric position of the side wall of the rotating disk 373 via bearings. A slider 377 is fixed to the end of the lower curved arm 376 away from the upper curved arm 375 via a pin. The slider 377 is detachably connected to a sliding strip 378 slidably mounted on the cutter frame 315. The sliding strip 378 is detachably connected to a sliding strip 378 slidably mounted on the cutter frame 315 via a sliding strip 378. The detachable connection is equipped with several cutting blades 379, which correspond to the cutting positions of the divider 32. The power shaft 372 is connected to the power output end of the reversing box 36. The reversing box 36 contains a bevel gear set or a worm gear transmission set, which can adjust the power output by 90°. The power transmitted from the power system 11 drives the power shaft 372 to rotate through the reversing box 36. The power shaft 372 drives the connecting rod 374 to make an arc motion, thereby driving the upper curved arm 375 to make a reciprocating motion, so that it transfers the motion trajectory to the lower curved arm 376. The lower curved arm 376 drives the slider 377 to make a reciprocating motion. The detachable connection between the slider 377 and the sliding bar 378 is preferably a bolt connection or a snap-fit ​​connection; the detachable connection between the cutting blade 379 and the sliding bar 378 is preferably a bolt connection. The drive shaft 372, rotating wheel 373, connecting rod 374, upper crank arm 375, lower crank arm 376, and slider 377 form a swing insertion box (eccentric connecting rod 374 mechanism). Most existing harvester headers use a swing ring box or crank box. The reason for replacing the swing ring box with a swing insertion box is that the swing ring box is larger and heavier than the swing insertion box, and the installation position requires stronger load-bearing capacity. The swing insertion box has a simple structure, small size and weight, and is more economical. After replacing it with the swing insertion box, the position of the sunflower tray conveyor 39 and the threshing mechanism 311 is shortened, the sunflower tray feeding is smoother, and the efficiency is higher.

[0066] like Figure 10 , Figure 22 As shown, in this embodiment, a blade protector 316 is fixed on the cutting table 315 at the position corresponding to the cutting blade 379 to protect the cutting blade 379. The blade protector 316 has a slide rail that cooperates with the sliding strip 378 and a U-shaped blade protection structure that is parallel to the cutting blade 379. When the cutting blade 379 reciprocates, it passes through the U-shaped structure. The reciprocating motion of the cutting blade 379 completes the cutting and protects the cutting blade 379, while cleaning the stems stuck on the cutting blade 379.

[0067] like Figure 20As shown, in this embodiment, several sets of toothed plates 351 are fixed at equal intervals on the outer wall of the stalk pulling roller 35. Each set of toothed plates 351 includes at least one metal plate. Each set of toothed plates 351 is arranged directly opposite the center of two adjacent dividers 32. The toothed plates 351 are arranged in a spiral shape along the axial direction of the stalk pulling roller 35 or parallel to the axis, for biting the sunflower stalks.

[0068] like Figure 9 , Figure 24 As shown, in this embodiment, the pressure plate device 33 includes an upper fixed frame 331 rotatably mounted on the transition shaft 38. An outwardly protruding arc-shaped plate 332 is fixed to one end of the upper fixed frame 331 away from the transition shaft 38. A hydraulic rod 334 for driving the pressure plate device 33 to pitch and swing is hinged to one end of the upper fixed frame 331 near the transition shaft 38. The other end of the hydraulic rod 334 is hinged to the cutter frame 315. A reel 333 is rotatably mounted on one end of the upper fixed frame 331 near the arc-shaped plate 332 via a bearing seat, actively pressing the cutter... After harvesting, the sunflower discs are fed into the sunflower disc conveyor 39, which effectively solves the problem of missed harvesting or poor feeding of tilted plants and ensures complete threshing. A transition gear is installed at the end of the transition shaft 38. Two chains are installed on the transition shaft 38 to realize the transmission connection between the reel 333 and the sunflower disc conveyor 39. The extension and retraction of the hydraulic rod 334 can drive the pressing plate device 33 (upper fixed frame 331 and reel 333) to rotate around the transition shaft 38 within a predetermined angle range (adjustable with an angle of ±30° with the horizontal plane) to adapt to sunflower plants of different heights.

[0069] like Figure 9 As shown, in this embodiment, side baffles 335 are bolted to both sides of the reel 333 to protect the sides of the header and prevent the sunflower tray from falling off.

[0070] like Figure 15 As shown in (a), in this embodiment, the reel 333 includes a roller 3331 with a chain connected to one end. At least two fixing plates 3332 are welded in an annular array on the outer circumference of the roller 3331. The fixing plates 3332 are arranged along the length of the roller 3331. Several mounting brackets 3333 are installed at equal intervals on each fixing plate 3332. The end of the mounting bracket 3333 away from the roller 3331 is detachably connected to a first pawl 3334. The first pawl 3334 is a metal plate or a rubber plate or plastic plate with a certain elasticity. The use of a rubber plate can protect the grains from damage. Its end is bent towards the sunflower tray conveyor 39. The distance between adjacent first pawls 3334 in the circumferential direction of the roller 3331 is 100mm to 300mm. During the rotation of the reel 333, the sunflower tray is pushed and conveyed into the sunflower tray conveyor 39.

[0071] like Figure 15As shown in (b), another preferred embodiment of the present invention is that the reel 333 includes a roller 3331 with a chain connected to one end for transmission. Several mounting brackets 3333 are spirally fixed on the outer circumference of the roller 3331 along the length direction. The end of the mounting bracket 3333 away from the roller 3331 is detachably connected to a first plate 3334. The first plate 3334 is a rubber plate or plastic plate with a certain elasticity. The rubber plate can protect the grains from damage. Its end is bent towards the sunflower tray conveyor 39. The distance between adjacent first plates 3334 in the circumferential direction of the roller 3331 is 100mm to 200mm. During the rotation of the reel 333, the sunflower tray is pushed and conveyed into the sunflower tray conveyor 39. The small-spaced first plates 3334 are suitable for planting areas with irregular planting patterns. When used in conjunction with the divider 32, the conveying efficiency of the sunflower tray can be improved.

[0072] like Figure 16 As shown, in this embodiment, the sunflower tray conveyor 39 includes an arc-shaped outer cylinder. Inside the arc-shaped outer cylinder, an auger shaft 391 is rotatably mounted via a bearing seat. One end of the auger shaft 391 is connected to a chain for transmission. A second deflector plate 393 is welded to the outer wall of the end of the auger shaft 391 near the feeding transition plate 310, which deflects the sunflower trays towards the feeding transition plate 310. The second deflector plate 393 is evenly distributed around the circumference of the auger shaft 391 and has a width of 400-600mm. A spiral auger 392 for axially conveying the sunflower trays is fixed to the outer wall of the other end of the auger shaft 391. The pitch of the spiral auger 392 is 200mm to 500mm, and the gap between the outer diameter of the blades and the inner wall of the arc-shaped outer cylinder is 10mm to 30mm. By combining axial conveying (spiral auger 392) and radial conveying (second deflector plate 393), the sunflower trays are quickly and orderly conveyed from the front of the cutting table to the feeding transition plate 310 in the middle and rear.

[0073] like Figure 17As shown, in this embodiment, the threshing mechanism 311 includes a coaxially arranged screw conveyor 3111 and a screw crushing threshing section 3112. The screw conveyor 3111 is located above the feeding transition plate 310 and is connected to the first power input shaft 317 via chain drive. Below the screw crushing threshing section 3112, a concave screen 3113 is installed on the cutter frame 315. The concave screen 3113 is a grid screen or a perforated screen, with elongated or round holes. The width or diameter of the screen holes is 8mm to 15mm. The screw conveyor 3111 consists of a small roller 3331 and screw blades with a large pitch welded to its outer wall. Its main function is to push the sunflower disc to move towards the screw crushing threshing section 3112, thereby achieving stable feeding of the sunflower disc; the screw crushing threshing... Section 3112 consists of a large roller 3331 and threshing tubes welded to the outer wall of the large roller 3331 in a spiral pattern. The gap between its outer edge and the upper surface of the concave screen 3113 is adjustable from 5 mm to 20 mm. This gap forms a crushing and threshing channel. The connection between the small roller 3331 and the large roller 3331 is a transition conical tube. The diameter of the threshing tubes is 20-25 mm, and the diameter of the large roller 3331 is 300-350 mm. The spiral crushing and threshing section 3112 cooperates with the concave screen 3113 below. Through the squeezing and kneading of the spiral blades and the friction of the concave screen 3113, a gentle but effective threshing is achieved, balancing the threshing rate and the integrity of the kernel / sunflower head. The concave screen 3113 allows the threshed kernels to separate and fall in time, entering the transverse conveyor 318.

[0074] In this embodiment, the feeding transition plate 310 has grooves formed in the middle for filtering sunflower seeds. The grooves are elongated or round, with a width or diameter of 6mm to 12mm. Before the sunflower discs enter the threshing mechanism 311, some of the fallen seeds can be pre-screened through the grooves into the transverse conveyor 318, reducing the load on the threshing mechanism 311, reducing the residence time of the seeds in the threshing chamber, and lowering the risk of breakage. As shown in the figure, the feeding transition plate 310 includes a mounting frame, with several steel bars fixed at equal intervals in the middle of the mounting frame. The steel bars can be arranged horizontally or vertically, forming filter grooves between them to filter the seeds.

[0075] like Figure 9As shown, in this embodiment, a sunflower disc throwing wheel 3131 is provided inside the sunflower disc conveying box 313, which rotates coaxially with the spiral threshing section 3112. The sunflower disc throwing wheel 3131 is fixedly installed on the end shaft of the spiral threshing section 3112 and rotates with the shaft. Its structure is a throwing disc with one or more radial blades. A conveyor belt is fixed on one side of the harvester, with one end extending to the lower side of the sunflower disc throwing wheel 3131. The other end of the conveyor belt is connected to the sunflower disc storage box. The sunflower disc throwing wheel 3131 quickly throws the threshed complete sunflower discs onto the conveyor belt and transports them to the storage box at the rear of the harvester, realizing the separation and collection of the sunflower discs and seeds. As shown in the figure, a transition wheel 3132 is rotatably installed inside the tray conveyor box 313 and is connected to the tray wheel 3131 via chain drive. The transmission of the tray wheel 3131 and the transition wheel 3132 can drive the tray closer to the outlet of the tray conveyor box 313. At this time, when installing the conveyor belt, it is not necessary to install the end of the conveyor belt on the lower side of the tray wheel 3131 inside the tray conveyor box 313, which facilitates the installation of the cutting table and the conveyor belt.

[0076] like Figure 10 As shown, in this embodiment, a screw conveyor 318 is provided with one end connected to the threshing mechanism 311 via a chain. A grain outlet 320 is provided below the transverse conveyor 318 at the position corresponding to the end of the screw conveyor. The grain outlet 320 is connected to the inlet of the cleaning device at the rear of the harvester via a hoist or conveyor belt. The position of the grain outlet 320 can be at one end or in the middle of the transverse conveyor 318. If the grain outlet 320 is in the middle of the transverse conveyor 318, a bidirectional screw conveyor should be used inside the transverse conveyor 318 to push the grains toward the grain outlet 320. The transverse conveyor 318 will collect and transport the threshed grains to the grain outlet 320 and enter the cleaning device installed at the rear of the harvester.

[0077] The working principle of this utility model is as follows: In use, the integrated cutting and threshing header 3 is installed at the front end of the harvester. The first power input shaft 317 and the second power input shaft 319 are connected to the harvester's power system 11. The operation of each component of the header is transmitted to the cutting components of the header by the power system 11 at the rear end of the harvester. The entire harvesting, cutting, and threshing process is completed synchronously as the harvester moves forward. Figure 24As shown, the sunflower plants are guided into the divider 32 by the dividing reel 31. The height of the guard plate is hydraulically adjusted according to the height of the sunflower so that the plants reach the stem-pulling roller 35 in a suitable posture. The stem-pulling roller 35 adjusts the sunflower heads to a uniform direction. The reversing box 36 drives the cutter assembly 37 to cut the plants. The sunflower heads are fed into the sunflower head conveyor 39 by the reeling reel 333. Then, the sunflower heads are fed into the feeding transition plate 310 for preliminary threshing. Then, the spiral mill threshing section 3112 and the concave screen 3113 rub against each other to complete the threshing. The threshed sunflower heads are then transported to the sunflower head conveyor box 313. The sunflower discs are conveyed to the sunflower disc conveying device 4 by the sunflower disc conveying device 4, and then fed into the sunflower disc storage box 5 at the rear of the harvester by the sunflower disc conveying device 4. After the sunflower seeds have been threshed, they fall into the transverse conveyor 318 after passing through the concave screen 3113, and enter the seed conveying mechanism 6 below the harvester through the lower seed outlet 320. The seed conveying mechanism 6 sends them to the cleaning mechanism 7 for screening and impurity removal. After impurity removal, the feeding fan 8 sends them into the seed collection box 10. When the sunflower disc storage box 5 and the seed collection box 10 are full, the sunflower discs and seeds are poured to the combined operation vehicle by the corresponding hydraulic push rod.

[0078] The advantages of this utility model are:

[0079] 1. Significantly shortens the transport path: Significantly reduces collisions, friction, and vibrations of the sunflower trays during transport.

[0080] 2. Reduced hulling rate and improved appearance: The threshing process is completed at the front end, and only screening and sorting are performed at the back end, thereby reducing the transportation path, improving the appearance of sunflowers, minimizing damage to the seed coat, and increasing commercial value.

[0081] 3. Reduce grain loss: The transportation process is short, resulting in less grain loss.

[0082] 4. Improve the integrity of the sunflower discs: The pre-threshing adopts a "spiral crushing" method (compared to the powerful impact at the rear end), combined with concave screen friction threshing, which causes less damage to the sunflower discs, which is conducive to the recovery of sunflower discs (such as feed or fuel) and improves the recovery rate.

[0083] 5. Avoid artificial drying: Threshing is done directly in the field, completely eliminating the need for cutting and drying trays, eliminating the risk of rotting due to weather, and ensuring a good harvest.

[0084] 6. Specifically designed for sunflower characteristics, it offers a significant leap in adaptability, operational quality, and efficiency compared to modified wheat / corn harvesters.

[0085] 7. Adopting a unique washboard threshing method, the sunflower discs have a high integrity rate. The rear end is designed with separate sunflower disc storage bins and grain collection bins, so that after the sunflower discs and grains are full, they can be dumped into the accompanying joint operation transport vehicle, thereby achieving full recycling of sunflower discs and directly eliminating the need for manual collection and transportation of sunflower discs in the field, greatly reducing labor intensity and secondary cost input.

[0086] Components not described in detail in this article are existing technologies.

[0087] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A sunflower harvester, comprising a frame (1), characterized in that: A positive pressure cab (2) is fixed at the front end of the frame (1). A power system (11) is installed at the rear end of the frame (1). A sunflower seed tray storage box (5) that can be flipped to one side of the frame (1) is installed between the power system (11) and the positive pressure cab (2). A grain collection box (10) that can be flipped to one side of the frame (1) is installed at the rear end of the frame (1). A hydraulic system (12) is provided between the positive pressure cab (2) and the sunflower seed tray storage box (5). A first hydraulic push rod (13) that drives the sunflower seed tray storage box (5) to flip is provided on one side of the sunflower seed tray storage box (5). 0) A second hydraulic push rod (14) is provided on one side to drive the grain collection box (10) to flip. The front end of the frame (1) is detachably connected to a cutting and threshing integrated cutting table (3). A sunflower tray conveying device (4) is provided on one side of the frame (1) to connect the sunflower tray outlet of the cutting and threshing integrated cutting table (3) and the sunflower tray storage box (5). A cleaning mechanism (7) is provided at the lower end of the frame (1). The inlet end of the cleaning mechanism (7) is connected to the grain outlet of the cutting and threshing integrated cutting table (3) through a grain conveying mechanism (6). The outlet end of the cleaning mechanism (7) is connected to the grain collection box (10) as a whole through an air duct (9).

2. A sunflower harvester according to claim 1, characterized in that: The grain conveying mechanism (6) includes a first frame (61), in which two sets of synchronously rotating conveying chains (62) are rotatably installed, and a number of conveying scrapers (63) for pushing grains are installed between the two sets of conveying chains (62). The first frame (61) is provided with a horn hopper for receiving grains and a hopper for discharging grains at both ends.

3. A sunflower harvester according to claim 2, characterized in that: The cleaning mechanism (7) includes a vibrating screen (71) located below the grain discharge hopper of the grain conveying mechanism (6). A collector (72) is provided below the vibrating screen (71). A spiral conveying blade (73) is rotatably installed inside the collector (72). A conversion cylinder (76) is installed at the end of the spiral conveying blade (73). A soft brush (74) is fixed to the edge of the blade of the spiral conveying blade (73). A feeding fan (8) is installed at one end of the conversion cylinder (76). The other end of the conversion cylinder (76) is connected to the air duct (9). A cleaning fan (75) with an air outlet facing the vibrating screen (71) is fixed on the side wall of the collector (72).

4. A sunflower harvester according to claim 1, characterized in that: The integrated harvester (3) includes a harvester frame (315). Several dividers (32) are fixed side by side below the front end of the harvester frame (315). A stalk-pulling roller (35) is rotatably mounted on the harvester frame (315) below the dividers (32). A cutter assembly (37) is installed between the dividers (32) and the stalk-pulling roller (35) to separate the sunflower discs from the stalks. One end of the cutter assembly (37) is connected to a reversing box (36) that drives the cutter assembly (37). A traction frame (312) that is attached to the harvester body is fixed at the rear side below the harvester frame (315). A sunflower disc conveyor (39) for receiving sunflower discs is installed in the middle of the harvester frame (315) near the cutter assembly (37). A transition shaft (38) is rotatably mounted above the middle of the harvester frame (315). A pressure plate device for guiding the sunflower discs to move downwards is rotatably mounted on the transition shaft (38). 33), a threshing mechanism (311) for threshing is installed at the rear end of the header frame (315). The sunflower tray conveyor (39) is connected to the threshing mechanism (311) through a feeding transition plate (310). A transverse conveyor (318) fixed on the header frame (315) is provided below the threshing mechanism (311). A sunflower tray conveyor box (313) is installed at one end of the threshing mechanism (311). A first power input shaft (317) and a second power input shaft (319) that are rotatably connected to the power system (11) are rotatably installed on both sides of the rear end of the header frame (315) through bearing seats. The first power input shaft (317) is connected to the threshing mechanism (311), the transverse conveyor (318), and the reversing box (36). The second power input shaft (319) is connected to the stalk pulling roller (35) and the sunflower tray conveyor (39).

5. A sunflower harvester according to claim 4, characterized in that: The cutter assembly (37) includes a fixed base (371) fixed on the cutter frame (315). A power shaft (372) is rotatably mounted on the fixed base (371) via a bearing. A rotating wheel (373) is fixed to one end of the power shaft (372). A side arm is provided on one side of the fixed base (371), and an upper curved arm (375) is rotatably mounted on the side arm. A connecting rod (374) and a lower curved arm (376) are rotatably mounted on the other end of the upper curved arm (375) via a pin. The connecting rod (374) is located away from the upper curved arm. One end of (375) is rotatably mounted on the side wall of the rotating wheel (373) at an eccentric position via a bearing. The end of the lower curved arm (376) away from the upper curved arm (375) is fixed with a slider (377) via a pin. The slider (377) is detachably connected to a sliding strip (378) slidably mounted on the cutting table frame (315). Several cutting blades (379) are detachably connected to the sliding strip (378). The cutting blades (379) correspond to the cutting positions of the divider (32).

6. A sunflower harvester according to claim 4, characterized in that: The pressing plate device (33) includes an upper fixed frame (331) rotatably mounted on the transition shaft (38). An outwardly protruding arc plate (332) is fixed at one end of the upper fixed frame (331) away from the transition shaft (38). A hydraulic rod (334) for driving the pressing plate device (33) to pitch and swing is hinged at one end of the upper fixed frame (331) near the transition shaft (38). A reel (333) is rotatably mounted on one end of the upper fixed frame (331) near the arc plate (332) through a bearing seat. The reel (333) is connected to the sunflower tray conveyor (39) in a transmission connection.

7. A sunflower harvester according to claim 6, characterized in that: The reel (333) includes a roller (3331), and at least two fixing plates (3332) are welded in an annular array on the outer circumference of the roller (3331). The fixing plates (3332) are arranged along the length of the roller (3331). Several mounting brackets (3333) are installed at equal intervals on each fixing plate (3332). A first reel plate (3334) is detachably connected to one end of the mounting bracket (3333) away from the roller (3331).

8. A sunflower harvester according to claim 4, characterized in that: The sunflower tray conveyor (39) includes an arc-shaped outer cylinder, and an auger shaft (391) is rotatably installed inside the arc-shaped outer cylinder. At least one second deflector plate (393) is welded to the outer wall of the auger shaft (391) near the feeding transition plate (310) to push the sunflower tray towards the feeding transition plate (310). A spiral auger (392) for axially conveying the sunflower tray is fixed to the outer wall of the other end of the auger shaft (391).

9. A sunflower harvester according to claim 4, characterized in that: The threshing mechanism (311) includes a coaxially arranged spiral conveying section (3111) and a spiral crushing threshing section (3112). The spiral conveying section (3111) is located above the feeding transition plate (310), and a concave screen (3113) installed on the cutting frame (315) is provided below the spiral crushing threshing section (3112).

10. A sunflower harvester according to claim 4, characterized in that: The transverse conveyor (318) is equipped with an auger, and a particle outlet (320) is provided below the transverse conveyor (318) at the position corresponding to the end of the auger.

Images