Seed-production corn male parent silage harvester and harvesting method

Abstract

The invention discloses a seed corn male parent silage harvester and a harvesting method.The harvester comprises a frame, a power unit, a cab, a storage unit, an advancing unit and a harvesting unit, the power unit is installed on the frame, the power unit is located at the rear end of the frame in the advancing direction of the frame, the cab is installed on the frame, and the storage unit is located at the rear end of the frame in the advancing direction of the frame; in the advancing direction of the frame, the cab is located at the front end of the frame, the storage unit is installed on the frame, in the advancing direction of the frame, the storage unit is located in the middle of the frame, the advancing unit is installed below the frame and connected with the power unit to drive the harvester to advance, and the height of the advancing unit is larger than the growth height of crops. The harvesting unit is connected with the frame, and the harvesting unit is located at the foremost end of the frame in the advancing direction of the frame. The harvester is suitable for silage harvesting of male parent plants in seed corn planting.

Description

Technical Field

[0001] This invention belongs to the technical field of corn harvesting equipment, specifically relating to a corn silage harvester and harvesting method for seed production male parents. Background Technology

[0002] Corn is a monoecious, cross-pollinated crop. In corn seed production, to obtain seeds with hybrid vigor and ensure that the female plant only accepts pollen from the male plant, the female plant must be emasculated before the male plant's stamens mature. This process is crucial for improving seed quality and yield. After emasculation, the female plant only accepts pollen from the male plant, i.e., pollination. After pollination, to improve the female plant's growing environment (light, ventilation, etc.), the male plant needs to be removed from the field promptly. To improve resource utilization and economic value, the male plant can be used as silage.

[0003] Most corn silage harvesters in related technologies are modified from single-row corn harvesters and are not suitable for harvesting male parent corn plants used for seed production. Summary of the Invention

[0004] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide a seed corn silage harvester, suitable for harvesting silage from male parent plants in seed corn cultivation.

[0005] An embodiment of the present invention also proposes a method for harvesting seed maize male parent silage.

[0006] A seed corn silage harvester according to an embodiment of the present invention includes: Frame; A power unit for providing power to the harvester is mounted on the frame and located at the rear end of the frame in the direction of travel of the frame. A driver's cab, which is mounted on the frame and located at the front end of the frame in the direction of travel of the frame; A storage unit for storing materials is mounted on the frame and located in the middle of the frame in the direction of travel of the frame. A traveling unit is installed below the frame and is connected to the power unit to drive the harvester. The height of the traveling unit is greater than the height of the crop. A harvesting unit is connected to the frame and is located at the foremost end of the frame in the direction of travel of the frame. The harvesting unit is used to harvest crops and transport the harvested crops to the storage unit.

[0007] In some embodiments, the travel unit includes a front drive assembly and a rear drive assembly, which are arranged symmetrically along the length of the frame with the storage unit as the center of symmetry.

[0008] In some embodiments, both the front drive assembly and the rear drive assembly include a suspension assembly, a track adjustment assembly, and a steering assembly, with the suspension assembly located between the track adjustment assembly and the vehicle frame, and the steering assembly connected to the track adjustment assembly.

[0009] In some embodiments, the wheelbase adjustment assembly includes a telescopic sleeve and a first wheel component and a second wheel component. The telescopic sleeve extends along the width direction of the frame. The fixed end of the telescopic sleeve is connected to the frame, and the telescopic ends of the telescopic sleeve are respectively connected to the first wheel component and the second wheel component. The first wheel component and the second wheel component can move closer to or further away from each other in the width direction of the frame.

[0010] In some embodiments, both the first wheel component and the second wheel component include a support shaft, a first support frame, a driver, and a wheel. The upper end of the support shaft is connected to the telescopic sleeve, the lower end of the support shaft is connected to the first support frame, the driver is mounted on the first support frame, and the output shaft of the driver is connected to the wheel.

[0011] In some embodiments, the first wheel component and the second wheel component in the front drive assembly are both arranged with kingpin caster, and the first wheel component and the second wheel component in the rear drive assembly are both arranged with kingpin caster, and the kingpin caster angle of the first wheel component and the second wheel component in the front drive assembly is greater than the kingpin caster angle of the first wheel component and the second wheel component in the rear drive assembly.

[0012] In some embodiments, the first and second wheel components in the front drive assembly and the first and second wheel components in the rear drive assembly are both arranged with positive camber, and the first and second wheel components in the front drive assembly and the first and second wheel components in the rear drive assembly are both arranged with kingpin inclination. And / or, the first wheel component and the second wheel component in the front drive assembly are arranged with a positive toe angle.

[0013] In some embodiments, the suspension assembly includes a link component, a shock absorber, a shock absorber, and a limiting chain. The link component is arranged laterally in the longitudinal direction of the vehicle frame, and the shock absorber, shock absorber, and limiting chain are arranged longitudinally in the height direction of the vehicle frame. That is, in the horizontal direction, one end of the link component is pivotally connected to the telescopic sleeve, and the other end of the link component is pivotally connected to the vehicle frame. In the vertical direction, the shock absorber, shock absorber, and limiting chain are located between the telescopic sleeve and the vehicle frame.

[0014] In some embodiments, the steering assembly includes a steering cylinder and a steering tie rod, one end of the steering tie rod being sleeved on a support shaft, and the other end of the steering tie rod being connected to the steering cylinder.

[0015] In some embodiments, the harvesting unit includes a header assembly and a throwing assembly. The header assembly is connected to the vehicle frame and is used to cut straw and transport the cut straw to the throwing assembly. The throwing assembly includes a throwing cylinder component and a throwing cylinder adjustment component. One end of the throwing cylinder component is connected to the header assembly, and the other end of the throwing cylinder component is connected to the storage unit. The throwing cylinder adjustment component is installed on the throwing cylinder component and is used to adjust the swing angle and height of the throwing cylinder component's outlet.

[0016] In some embodiments, the header assembly includes a feeding component, a cutting box, a cutting blade, and a throwing component. The feeding component has a feeding channel, one end of which communicates with the outside, and the other end of which communicates with the cutting box. The cutting blade and the throwing component are both installed inside the cutting box and are arranged coaxially. The cutting blade is used to cut straw, and the throwing component is used to throw the cut straw into the throwing cylinder component.

[0017] In some embodiments, the throwing cylinder component includes a folding throwing cylinder and a discharge baffle. The folding throwing cylinder includes multiple cylinder sections that are hinged together in sequence. The discharge baffle is connected to the discharge end of one of the cylinder sections that is away from the cutting box, and the discharge baffle extends obliquely downward.

[0018] In some embodiments, one section of the multiple cylindrical bodies adjacent to the cutting box is connected to the cutting box. The throwing cylinder adjustment component includes a first adjustment cylinder and a connecting component. The connecting component is sleeved on the outside of the lowest section of the multiple cylindrical bodies. One end of the first adjustment cylinder is pivotally connected to the connecting component via a first connecting rod, and the other end of the first adjustment cylinder is pivotally connected to the section of the multiple cylindrical bodies adjacent to the lowest section.

[0019] In some embodiments, the throwing assembly further includes an image acquisition component connected to the throwing cylinder component and located at the discharge end of the throwing cylinder component. The image acquisition component includes an image acquisition unit and a dustproof component. The dustproof component includes a rotating lens and a driving component. The rotating lens is located outside the image acquisition end of the image acquisition unit, and the driving component is used to drive the rotating lens to rotate.

[0020] In some embodiments, the throwing assembly further includes an auxiliary feeding assembly, which includes an airflow generator, an air supply pipe, and a valve component. The airflow generator's outlet is connected to the throwing cylinder assembly, and the valve component is installed inside the throwing cylinder assembly. The valve component is pivotally connected to the throwing cylinder assembly to connect and disconnect the airflow generator from the throwing cylinder assembly. The air inlet of the air supply pipe is connected to the airflow generator, and the air outlet of the air supply pipe faces the side of the rotating lens away from the external image acquisition device.

[0021] In some embodiments, the harvesting unit further includes a cutting adjustment assembly located between the header assembly and the frame, the cutting adjustment assembly being used to adjust the position of the header assembly and the throwing assembly in the width direction of the frame and the distance of the header assembly and the throwing assembly from the frame.

[0022] In some embodiments, the harvesting unit further includes a crop-lifting assembly, which includes a connecting frame and crop-lifting poles. The connecting frame is connected to the header assembly, and the crop-lifting poles are connected to the connecting frame.

[0023] In some embodiments, the number of the supporting rods is two, and the two supporting rods are arranged opposite each other in the width direction of the frame to form a supporting space. The supporting rod includes a first rod segment and a second rod segment. The first rod segment is an arc-shaped rod extending in a direction away from the frame, and the second rod segment is an arc-shaped rod extending in a direction close to the frame.

[0024] This invention also proposes a method for harvesting silage from the male parent of seed maize, used to control a silage harvester. The harvesting method includes the following steps: The system acquires information on the row spacing of seed corn, controls the wheel track adjustment component in the traveling unit based on the row spacing information to match the wheel track with the row spacing, and controls the traveling unit to travel along a predetermined route. The harvesting unit controls the header assembly in the harvesting unit to harvest crops, and controls the throwing assembly in the header assembly to throw the harvested crops to the storage unit. The control throwing component swings back and forth at a preset frequency.

[0025] In some embodiments, the method for harvesting the male parent of seed maize for silage further includes: Obtain the height of the material accumulation around the perimeter of the storage unit; When the height difference of the surrounding material piles reaches the first preset condition, the throwing component is controlled to deliver the material to the lowest point.

[0026] Beneficial effects: Compared to the improvements made to corn harvesters in related technologies, the harvester of this application, by raising the height of the traveling unit, not only ensures the harvester's passability and reduces the risk of crushing corn, but is also more suitable for use in the harvesting of seed corn silage. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a seed corn silage harvester according to an embodiment of the present invention.

[0028] Figure 2 This is a schematic diagram of the structure of the storage unit according to an embodiment of the present invention.

[0029] Figure 3 This is a schematic diagram of the chassis and traveling unit according to an embodiment of the present invention.

[0030] Figure 4 This is a top view of the chassis and traveling unit according to an embodiment of the present invention.

[0031] Figure 5 This is a side view of the chassis and traveling unit according to an embodiment of the present invention.

[0032] Figure 6 This is a schematic diagram of the suspension assembly, wheel track adjustment assembly, and steering assembly according to an embodiment of the present invention.

[0033] Figure 7 This is a structural schematic diagram of the suspension assembly, wheel track adjustment assembly, and steering assembly from another perspective, according to an embodiment of the present invention.

[0034] Figure 8 This is a structural schematic diagram of the front and rear wheels of the suspension assembly in different road conditions, showing their rising and falling states.

[0035] Figure 9 This is a schematic diagram of the vehicle body structure under different road conditions for the left and right wheels of the suspension assembly in an embodiment of the present invention.

[0036] Figure 10 This is a schematic diagram of the harvesting unit according to an embodiment of the present invention.

[0037] Figure 11 This is a schematic diagram of the cutter assembly according to an embodiment of the present invention.

[0038] Figure 12 This is a schematic diagram of the structure of the throwing component according to an embodiment of the present invention.

[0039] Figure 13 This is a schematic diagram of the structure of the image acquisition component according to an embodiment of the present invention.

[0040] Figure 14 This is a schematic diagram of the structure of the auxiliary feeding component according to an embodiment of the present invention.

[0041] Figure 15 This is a schematic diagram of the structure of the dustproof component according to an embodiment of the present invention.

[0042] Figure 16 This is a schematic diagram of the cutting adjustment component according to an embodiment of the present invention.

[0043] Figure 17 This is a schematic diagram of the structure of the Fuhe component according to an embodiment of the present invention.

[0044] Figure 18 This is a schematic diagram of the structure of the straw in an embodiment of the present invention.

[0045] Figure 19 This is a flowchart of the method for harvesting seed maize silage from the male parent in an embodiment of the present invention.

[0046] Figure label: Chassis 100, power unit 200, cab 300, storage unit 400, travel unit 500, harvesting unit 600. Storage bin 1, The components include: a tilting assembly 2, a fixing frame 21, a guide groove 211, a tilting frame 22, a sliding rod 23, a first hydraulic cylinder 24, a second hydraulic cylinder 25, and a connecting plate 26. Suspension assembly 3, linkage assembly 31, shock absorber airbag 32, shock absorber 33, limit chain 34. Wheelbase adjustment assembly 4, telescopic sleeve 41, first wheel component 42, support axle 421, first support frame 422, drive unit 423, wheel 424. Second wheel component 43, third hydraulic cylinder 44 Steering assembly 5, steering cylinder 51, steering tie rod 52 Cutting table assembly 6, feeding component 61, feeding guide table 611, feeding guide roller 612, feeding channel 613, cutting box 62, cutting blade 63, throwing component 64, throwing disc 641, throwing plate 642, blade holder 65. Throwing assembly 7, throwing cylinder component 71, cylinder body 711, discharge baffle 712, connecting sleeve 713. Throwing cylinder adjusting component 72, first adjusting cylinder 721, first connecting rod 722. Connecting component 723, guide sleeve 7231, second connecting rod 7232, pull rod 7233. Second regulating cylinder 724 Auxiliary feeding assembly 8, airflow generator 81, air supply pipe 82, valve assembly 83, valve 831, spring 832. Image acquisition component 9, image acquisition unit 91, dustproof component 92, rotating lens 921, drive component 922, drive motor 9221, drive gear 9222, driven gear 9223. The cutting adjustment assembly 10 includes: a first mounting bracket 101, a first sliding bracket 102, a second sliding bracket 103, a first swing bracket 104, a first telescopic bracket 105, a third adjusting cylinder 106, a fourth adjusting cylinder 107, a fifth adjusting cylinder 108, and a sixth adjusting cylinder 109. The supporting components are: 11, 111, 112, 1120, 1121, and 1122. Detailed Implementation

[0047] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0048] A seed corn silage harvester includes a frame 100, a power unit 200, a cab 300, a storage unit 400, a traveling unit 500, and a harvesting unit 600. The power unit 200 is mounted on the frame 100 and is located at the rear end of the frame 100 in the traveling direction, providing power to the harvester. The cab 300 is mounted on the frame 100 and is located at the front end of the frame 100 in the traveling direction, controlling the harvester's movement and the operation of the power unit 200, storage unit 400, traveling unit 500, and harvesting unit 600. The equipment and device are centrally controlled; the storage unit 400 is installed on the frame 100 and is located in the middle of the frame 100 in the direction of travel of the frame 100, and is used to store materials; the traveling unit 500 is installed below the frame 100 and is connected to the power unit 200 to drive the harvester to move, and the height of the traveling unit 500 is greater than the growth height of the crop; the harvesting unit 600 is connected to the frame 100 and is located at the front end of the frame 100 in the direction of travel of the frame 100, and is used to harvest crops and transport the harvested crops to the storage unit 400.

[0049] See Figure 1 and Figure 2As shown, the power unit 200 is installed at the rear end of the frame 100, the cab 300 is installed at the front end of the frame 100, and the storage unit 400 is installed in the middle of the frame 100, with the storage unit 400 located between the power unit 200 and the cab 300. The travel unit 500 is located below the frame 100, and the height of the travel unit 500 is greater than the growth height of the crop.

[0050] It should be noted that, taking the height of corn from the growth stage to the tasseling stage as an example, which can be 1.6 to 1.7 meters, the height of the traveling unit 500 is at least 2.0 meters. In other words, the harvester can travel above the crop to ensure that the frame 100 is above the parent plant without colliding with the parent plant and crushing the crop, thus ensuring that the harvester can travel smoothly.

[0051] Compared to the improvements made to corn harvesters in related technologies, the harvester in this application embodiment can ensure the harvester's passability and reduce the risk of collision or crushing of corn, making it more suitable for use in the harvesting of seed corn silage.

[0052] Furthermore, when the harvester of this application is unloaded, the fuel tank in the power unit 200 is fully loaded, and the front of the frame 100 has a harvesting unit 600 and a cab 300. If the storage unit 400 is located at the rear, the weight at the front of the frame 100 is greater than the weight at the rear. At this time, the center of gravity of the harvester is forward, which is not conducive to the overall balance and stress distribution of the frame 100.

[0053] Conversely, if the storage unit 400 is located at the front of the frame 100, that is, in front of the cab 300, it will affect normal driving when loading and unloading materials, which is not conducive to driving safety and operational safety.

[0054] The storage unit 400 is arranged between the power unit 200 and the cab 300. When unloaded, the weight of the power unit 200 is distributed as evenly as possible with the weight of the cab 300 and the harvesting unit 600. At this time, the center of gravity of the harvester is located in the middle area of ​​the whole machine, which can make the force distribution on the front and rear sides of the frame 100 more even, and can ensure the balance of the frame 100 and the driving stability on complex terrain.

[0055] Furthermore, during the harvesting process, the fuel in the fuel tank gradually decreases, while the weight of the material in the storage unit 400 increases, causing the machine's center of gravity to shift more towards the central area, thus improving the machine's stability. Moreover, when the storage unit 400 collects or unloads material, the weight of the storage unit 400 increases or decreases at the center of the frame without significantly altering the machine's center of gravity, further enhancing its stability.

[0056] For example, see Figure 2 As shown, the storage unit 400 includes a storage box 1 and a flipping assembly 2. The flipping assembly 2 includes a fixed frame 21 and a flipping frame 22. The fixed frame 21 is fixed on the vehicle frame 100 and extends in the vertical direction. The flipping frame 22 is slidably disposed on the fixed frame 21 and can move in the vertical direction. The flipping frame 22 can rotate relative to the fixed frame 21. The storage box 1 is installed on the flipping frame 22.

[0057] See Figure 2 As shown, the fixed frame 21 has a guide groove 211, and a sliding rod 23 is located in the guide groove 211. The upper end of the sliding rod 23 is pivotally connected to the first hydraulic cylinder 24. A connecting plate 26 is provided on the sliding rod 23 of the first hydraulic cylinder 24. A second hydraulic cylinder 25 is pivotally connected to the connecting plate 26. The side of the second hydraulic cylinder 25 away from the connecting plate 26 is pivotally connected to the right end of the tilting frame 22. The second hydraulic cylinder 25 is arranged at an angle with the left side lower than the right side. When the first hydraulic cylinder 24 extends, it can drive the sliding rod 23 and the connecting plate 26 to rise. The tilting frame 22 and the storage box 1 rise simultaneously. When the target height is reached, the second hydraulic cylinder 25 extends to lift the right end of the tilting frame 22 and move it upward to realize the tilting of the storage box 1 to the left to complete the unloading.

[0058] Alternatively, a door can be opened at the bottom of the storage box 1, with one side of the door pivotally connected to the storage box 1 and the other end of the door pivotally connected to the second hydraulic cylinder 25. When the first hydraulic cylinder 24 raises the storage box 1 to a certain height and the bottom of the storage box 1 has space for the door to be opened, the second hydraulic cylinder 25 is activated to open the door and realize the bottom unloading of the storage box 1.

[0059] In some embodiments, the travel unit 500 includes a front drive assembly and a rear drive assembly, which are arranged symmetrically along the length of the frame 100 with the storage unit 400 as the center of symmetry.

[0060] See Figure 3 As shown, the front drive assembly is the front axle drive assembly, and the rear drive assembly is the rear axle drive assembly. The front and rear drive assemblies are arranged symmetrically in the longitudinal direction with the center line of the storage tank 1 as the axis of symmetry. This symmetrical arrangement of the front and rear drive assemblies with respect to the storage tank 1 ensures the stability of the entire machine during operation.

[0061] In some embodiments, both the front drive assembly and the rear drive assembly include a suspension assembly 3, a track adjustment assembly 4, and a steering assembly 5. The suspension assembly 3 is located between the track adjustment assembly 4 and the frame 100, and the steering assembly 5 is connected to the track adjustment assembly 4.

[0062] See Figure 3 and Figure 6As shown, there are two suspension assemblies 3, located at the front and rear sides of the frame 100, respectively. In other words, the two suspension assemblies 3 are adapted to the front drive assembly and the rear drive assembly, respectively. The front suspension assembly 3 and the rear suspension assembly 3 are arranged in a mirror image with the center line of the frame 100 in the longitudinal direction as the mirror center. The mirror distribution of the front and rear suspension assemblies 3 can improve the uniformity of front and rear shock absorption of the frame 100, improve the stability of the whole machine, and thus ensure the efficiency and quality of harvesting.

[0063] See Figure 3 and Figure 4 As shown, there are four wheels under the frame 100, which are located on the front left, front right, rear left and rear right sides respectively under the frame 100.

[0064] For example, see Figure 4 and Figure 6 As shown, the suspension assembly 3 includes a link component 31, a shock absorber 32, a shock absorber 33, and a limiting chain 34. The link component 31 is arranged laterally along the length of the frame 100, while the shock absorber 32, the shock absorber 33, and the limiting chain 34 are arranged longitudinally along the height of the frame 100. That is, in the horizontal direction, one end of the link component 31 is pivotally connected to the telescopic sleeve 41, and the other end of the link component 31 is pivotally connected to the frame 100. In the vertical direction, the shock absorber 32, the shock absorber 33, and the limiting chain 34 are located between the telescopic sleeve 41 and the frame 100.

[0065] The linkage component 31 includes four links, which are arranged in pairs at intervals. The two links in the same pair are arranged at an angle. For example, taking the rear suspension component 3 as an example, the two upper links are arranged at an angle from back to front, and the distance between them gradually increases from back to front to form a figure-eight distribution. The distance between the two lower links gradually decreases from back to front, and the links in the vertical direction are arranged in an X-shape, forming a four-bar linkage. This arrangement can improve the structural stability between the linkage component 31 and the frame 100 and the track adjustment component 4, and can also ensure the uniformity of shock absorption.

[0066] It should be noted that since the front suspension assembly 3 and the rear suspension assembly 3 are mirror images of each other, the extension direction of the connecting rod in the front suspension assembly 3 is also mirror image of the extension direction of the rear suspension assembly 3.

[0067] For example, see Figure 5 , Figure 6 and Figure 8As shown, the lower end of the shock absorber 32 is mounted on the wheel track adjustment assembly 4, and the upper end of the shock absorber 32 contacts the frame 100. Each side of the suspension assembly 3 includes two shock absorbers 32, which are spaced apart in the left-right direction. The suspension assembly 3 also includes a shock absorber 33, which extends vertically. The upper end of the shock absorber 33 is connected to the frame 100 and pivotally connected to the frame 100, while the lower end of the shock absorber 33 is pivotally connected to the telescopic sleeve 41. By using the shock absorber 33 in conjunction with the shock absorber 32 and the connecting rod assembly 31, the shock absorption effect of the frame 100 can be further improved.

[0068] See Figure 7 and Figure 8 As shown, the suspension assembly 3 also includes a limiting chain 34. When the wheel encounters a pothole and drops, both the airbag 32 and the shock absorber 33 are stretched, and the limiting chain 34 changes from a "slack state" to a "tight state." When the wheel encounters a bump and is lifted, both the airbag 32 and the shock absorber 33 are compressed, and the limiting chain 34 changes from a "tight state" to a "slack state." When the wheel encounters a pothole and drops, the limiting chain 34 can control the distance the wheel drops, ensuring that the airbag 32 and the shock absorber 33 are stretched within their safe travel range. In other words, the limiting chain 34 can protect the airbag 32 and the shock absorber 33. Conversely, when the wheel encounters a bump and is lifted, the limiting chain 34 does not affect the compression of the airbag 32 and the shock absorber 33. The shock absorption function of the frame 100 and its connected devices is achieved through the combined action of the shock-absorbing airbag 32, shock absorber 33 and limiting chain 34.

[0069] The suspension assembly 3 transmits various forces and torques exerted on the wheels 424 by the ground to the frame 100 and quickly attenuates the vibrations of the frame 100 and the vehicle body, ensuring the normal operation of the high ground clearance chassis. The shock absorber 33 adopts a two-way action telescopic shock absorber, which can ensure that the shock absorbers 33 of the left and right wheels work independently. The damping force is automatically adjusted according to the real-time bounce state (compression or extension) of the corresponding wheel 424. When the vehicle is driving on an asymmetrical road surface (such as one-sided bumps), the left and right shock absorbers 33 do not interfere with each other and can independently and accurately absorb the impact of the corresponding wheel 424. When the vehicle body moves as a whole (such as steering roll or pitch), the shock absorbers 33 on both sides work together through their damping characteristics to jointly suppress changes in vehicle body posture and maintain the driving stability of the chassis.

[0070] See Figure 8As shown, for example, when the front of the wheel encounters a pothole and the rear of the wheel encounters a bump, the shock absorber 32 and shock absorber 33 compress when the rear wheel encounters the bump, and the wheel is lifted. When the front wheel encounters a pothole, the shock absorber 32 and shock absorber 33 extend, and the wheel falls. The four-link in the front linkage rotates downward about the hinge point with the frame 100, while the four-link in the rear linkage rotates upward about the hinge point with the frame 100, thereby achieving a shock absorption effect and keeping the frame as level as possible in the front-rear direction.

[0071] See Figure 9 As shown, the two ends of the connecting rod component 31 in the suspension assembly 3 are pivotally connected to the frame 100 and the telescopic sleeve 41, respectively. Under the action of the four-bar linkage formed by the connecting rod component 31, the suspension assembly 3 can rotate around the connecting rod pivot point in the plane enclosed by the telescopic sleeve 41 and the left and right support shafts 421. At this time, the shock absorber 32 and shock absorber 33 on the side with the higher wheel are compressed, and the shock absorber 32 and shock absorber 33 on the side with the lower wheel are stretched. For example, when the left and right wheels of the harvester are traveling under different road conditions and one wheel is higher than the other, the working state of the shock absorber 32 and shock absorber 33 in the suspension assembly 3 can be realized through the connecting rod component 31, thereby maintaining the frame in a horizontal state in the left and right directions.

[0072] In some embodiments, the wheelbase adjustment assembly 4 includes a telescopic sleeve 41, a first wheel component 42, and a second wheel component 43. The telescopic sleeve 41 extends along the width direction of the frame 100. The fixed end of the telescopic sleeve 41 is connected to the frame 100 through a shock-absorbing airbag 32, a shock absorber 33, and a limiting chain 34. The telescopic ends of the telescopic sleeve 41 are connected to the first wheel component 42 and the second wheel component 43, respectively. The first wheel component 42 and the second wheel component 43 can move closer to or further away from each other in the width direction of the frame 100.

[0073] See Figure 7 As shown, the telescopic sleeve 41 is located below the frame 100. The telescopic sleeve 41 extends in the left and right direction and is also connected to the frame 100 through the connecting rod component 31. The telescopic ends of the telescopic sleeve 41 are respectively connected to the first wheel component 42 and the second wheel component 43. The telescopic ends of the telescopic sleeve 41 are connected to the fixed ends through the third hydraulic cylinder 44. That is, when the third hydraulic cylinder 44 extends, the telescopic ends of the telescopic sleeve 41 extend out of the fixed ends, and conversely, when the third hydraulic cylinder 44 retracts, the telescopic ends of the telescopic sleeve 41 retract into the fixed ends.

[0074] For example, see Figure 7As shown, there are two third hydraulic cylinders 44, and two telescopic ends of the telescopic sleeve 41. The two telescopic ends are symmetrically arranged in the left and right directions. The two third hydraulic cylinders 44 are connected to the two telescopic ends respectively. By setting the telescopic sleeve 41 and the third hydraulic cylinders 44, the first wheel component 42 and the second wheel component 43 can be driven to move closer or further apart, thereby adjusting the wheel track of the wheel 424 and thus meeting the harvesting operations with different sowing row spacings.

[0075] In some embodiments, the first wheel component 42 and the second wheel component 43 both include a support shaft 421, a first support frame 422, a driver 423 and a wheel 424. The upper end of the support shaft 421 is connected to the telescopic sleeve 41, the lower end of the support shaft 421 is connected to the first support frame 422, the driver 423 is mounted on the first support frame 422, and the output shaft of the driver 423 is connected to the wheel 424.

[0076] See Figure 7 As shown, the first wheel component 42 and the second wheel component 43 have the same structure and are arranged symmetrically in the left and right directions. For example, the support shaft 421 extends in the up and down direction, the upper end of the support shaft 421 passes through the telescopic end of the telescopic sleeve 41, the lower end of the support shaft 421 is connected to the connecting seat, the driver 423 is fixed on the connecting seat, and the output shaft of the driver 423 is connected to the wheel 424.

[0077] Optionally, a drum brake may also be provided on the output shaft of the driver 423 to brake the wheel 424.

[0078] It should be noted that the wheel track adjustment component 4 located on the front side and the wheel track adjustment component 4 located on the rear side have the same structure. With this setting, the harvester can achieve four-wheel rotation by using four independently rotating wheels 424. Furthermore, by setting different speed control methods, differential rotation of the wheels 424 can be achieved, thereby enabling different control of the harvester's travel path. For example, the harvester can be turned on the spot, reducing the turning radius, which is beneficial for the harvester to operate in areas with narrow turning radii.

[0079] In some embodiments, the first wheel component 42 and the second wheel component 43 in the front drive assembly are both arranged with kingpin inclination, and the first wheel component 42 and the second wheel component 43 in the rear drive assembly are both arranged with kingpin inclination, and the kingpin inclination angle of the first wheel component 42 and the second wheel component 43 in the front drive assembly is greater than the kingpin inclination angle of the first wheel component 42 and the second wheel component 43 in the rear drive assembly.

[0080] This design generates forward friction when the road surface is uneven, preventing the frame 100 from swaying left and right and promptly straightening the frame 100, effectively improving the straight-line stability of the entire vehicle. Because the equipment at the front of the harvester is relatively high, the swing amplitude generated at the front of the frame 100 is larger when the harvester bumps. Therefore, the kingpin tilt angle of the first wheel component 42 and the second wheel component 43 in the front drive assembly is greater than that of the first wheel component 42 and the second wheel component 43 in the rear drive assembly, which can better resist the swing at the front of the harvester and ensure the stability of the entire vehicle.

[0081] In some embodiments, the first wheel component 42 and the second wheel component 43 in the front drive assembly and the first wheel component 42 and the second wheel component 43 in the rear drive assembly are both arranged with positive outward camber, and the first wheel component 42 and the second wheel component 43 in the front drive assembly and the first wheel component 42 and the second wheel component 43 in the rear drive assembly are both arranged with kingpin inward camber. With this configuration, when the harvester is loaded, the wheels 424 are subjected to pressure and return to center, increasing the contact area of ​​the tires, ensuring the overall grip of the vehicle, and improving the stability of the harvester.

[0082] And / or, the first wheel component 42 and the second wheel component 43 in the front drive assembly are arranged with a positive toe angle.

[0083] It should be noted that when the vehicle is moving forward, the wheels 424 are subjected to rolling resistance, and the ground pulls on the tires, causing them to deform slightly. This causes the suspension dampers to pull backward, resulting in the wheels 424 on both sides opening outward. Therefore, it is necessary to design the positive toe angle in advance to counteract the outward opening angle of the wheels 424 on both sides, so as to ensure the safety and stability of the vehicle.

[0084] In some embodiments, the steering assembly 5 includes a steering cylinder 51 and a steering tie rod 52, one end of which is sleeved on the support shaft 421, and the other end of which is pivotally connected to the steering cylinder 51.

[0085] See Figure 7 As shown, the extension and retraction end of the steering cylinder 51 is pivotally connected to the steering tie rod 52, and the side of the steering tie rod 52 away from the steering cylinder 51 is pivotally connected to the built-in rotating shaft of the support shaft 421. The extension and retraction of the steering cylinder 51 drives the built-in rotating shaft of the support shaft 421 to rotate, thereby realizing the steering of the wheel 424.

[0086] It should be noted that each of the four wheels 424 of the harvester is equipped with a steering component 5. This configuration allows for adjustment of the angle of each wheel 424. In conjunction with the drive unit 423 installed on each wheel 424, different movement modes of the harvester can be achieved. For example, the four wheels 424 can be controlled to be arranged laterally to achieve lateral movement of the harvester. Combined with the four drive units 423, differential rotation of the wheels 424 can also be achieved to enable the harvester to turn on the spot, which is suitable for working areas with limited turning space.

[0087] Optionally, a wheel-side reducer is connected to the output shaft of the driver 423. The power output shaft of the wheel-side reducer is connected to the wheel. In other words, power is transmitted from the driver 423 to the reducer, and then from the reducer to the wheel.

[0088] In some embodiments, the harvesting unit 600 includes a header assembly 6 and a throwing assembly 7. The header assembly 6 is connected to the frame 100 and is used to cut straw and transport the cut straw to the throwing assembly 7. The throwing assembly 7 includes a throwing cylinder component 71 and a throwing cylinder adjustment component 72. One end of the throwing cylinder component 71 is connected to the header assembly 6, and the other end of the throwing cylinder component 71 is connected to the storage unit 400. The throwing cylinder adjustment component 72 is installed on the throwing cylinder component 71 and is used to adjust the swing angle and height of the discharge port of the throwing cylinder component 71.

[0089] See Figure 1 and Figure 11 As shown, the header assembly 6 is installed on the front side of the frame 100, and the throwing assembly 7 is located above the header assembly 6. The header assembly 6 can harvest and cut the crops in front of the harvester, and then transport the cut straw to the throwing cylinder component 71. The throwing cylinder component 71 transports the straw to the storage box 1.

[0090] The throwing cylinder adjustment component 72 is located in the middle or at the bottom of the throwing cylinder component 71, and can adjust the height and swing angle of the throwing cylinder component 71. With this configuration, the crop roots and stems are harvested using the header assembly 6, and the cut roots and stems are transported using the throwing assembly 7, realizing the integration of crop harvesting and storage.

[0091] In some embodiments, the header assembly 6 includes a feeding component 61, a cutting box 62, a cutting blade 63, and a throwing component 64. The feeding component 61 has a feeding channel 613, one end of which is connected to the outside, and the other end of which is connected to the cutting box 62. The cutting blade 63 and the throwing component 64 are both installed inside the cutting box 62 and are arranged coaxially. The cutting blade 63 is used to cut straw, and the throwing component 64 is used to throw the cut straw into the throwing cylinder component 71.

[0092] See Figure 11As shown, the feeding component 61 includes two feeding guides 611 and two feeding guide rollers 612. The two feeding guides 611 are installed on the front side of the cutting box 62. The two feeding guides 611 are arranged at intervals in the left and right direction to form a feeding channel 613. The cross-sectional area of ​​the feeding channel 613 gradually decreases from front to back. In this way, the smoothness of straw entering the feeding channel 613 and the accuracy and continuity of entering the cutting box 62 can be guaranteed.

[0093] Two feed guide rollers 612 are installed at the outlet of the feed channel 613. The two feed guide rollers 612 extend in the vertical direction and rotate relative to each other. For example, the feed guide roller 612 installed on the left rotates counterclockwise and the feed guide roller 612 installed on the right rotates clockwise. In this way, the straw at the outlet of the feed channel 613 can be fed into the cutting box 62.

[0094] See Figure 11 As shown, there are multiple cutting tools 63, which are arranged evenly at intervals around the circumference and are respectively mounted on the tool holder 65. The throwing component 64 includes a throwing disk 641 and multiple throwing plates 642. The throwing disk 641 is located behind the tool holder 65. The tool holder 65 and the throwing disk 641 are arranged coaxially. The multiple throwing plates 642 are arranged at intervals around the circumference of the throwing disk 641.

[0095] The outlet of the cutting box 62 is connected to the inlet of the throwing cylinder component 71, and the outlet of the cutting box 62 is located on the movement path of the throwing plate 642.

[0096] The straw is cut into segments using the cutting blade 63, and the segments are then thrown into the storage bin 1 using the throwing plate 642. It should be noted that the length of the straw segments can be controlled by adjusting the cutting blade 63 and its rotation speed, as well as by adjusting the rotation speed of the feeding guide roller 612.

[0097] Imagine that the higher the rotation speed of the feed guide roller 612, the faster the straw enters the cutting box 62, and the greater the length of the straw entering the cutting box 62 per unit time. If the rotation speed of the cutting blade 63 remains unchanged, the number of contacts between the cutting blade 63 and the straw decreases, and the length of the straw segment increases.

[0098] Conversely, if the rotation speed of the feed guide roller 612 decreases, the speed at which the straw enters the cutting box 62 decreases, and the length of the straw entering the cutting box 62 per unit time decreases. If the rotation speed of the cutting blade 63 increases, the number of contacts between the cutting blade 63 and the straw increases, and the length of the straw segments decreases.

[0099] Optionally, the cutting tool 63 is detachably connected to the tool holder 65, and the throwing plate 642 is detachably connected to the throwing disk 641, thereby facilitating the replacement of worn or damaged cutting tools 63 and throwing plates 642.

[0100] In some embodiments, the throwing cylinder component 71 includes a folded throwing cylinder and a discharge baffle 712. The folded throwing cylinder includes multiple sections of cylinder 711 that are hinged together in sequence. The discharge baffle 712 is connected to the discharge end of one section of cylinder 711 that is away from the cutting box 62, and the discharge baffle 712 extends downward at an angle.

[0101] See Figure 12 As shown, adjacent cylindrical sections 711 are connected by a hinge, and a flexible connecting sleeve 713 is provided between the two cylindrical sections 711. The connecting sleeve 713 can improve the sealing between the two cylindrical sections 711 and reduce the risk of material spillage from the connection. The connecting sleeve 713 is a flexible connecting sleeve 713, which can be used in different application scenarios when the cylindrical sections 711 are folded or unfolded.

[0102] The discharge baffle 712 is located at the discharge port of the last section of the cylinder 711. The discharge baffle 712 can ensure that the material always flows downward and avoids the phenomenon of material overflow.

[0103] Optionally, the angle between the discharge baffle 712 and the cylinder 711 can be varied. The opening of the discharge port of the cylinder 711 can be adjusted by the change in the angle between the discharge baffle 712 and the cylinder 711. For example, the smaller the angle between the discharge baffle 712 and the cylinder 711, the smaller the opening of the discharge port of the cylinder 711.

[0104] In some embodiments, one section of the multi-section cylinder 711 adjacent to the cutting box 62 is connected to the cutting box 62. The throwing cylinder adjustment component 72 includes a first adjustment cylinder 721 and a connecting component 723. The connecting component 723 is sleeved on the outside of the lowermost section of the multi-section cylinder 711. One end of the first adjustment cylinder 721 is pivotally connected to the connecting component 723 through a first connecting rod 722. The other end of the first adjustment cylinder 721 is pivotally connected to one section of the multi-section cylinder 711 adjacent to the lowermost section 711.

[0105] See Figure 12 As shown, the bottommost section of the multi-section cylinder 711 is connected to the outlet of the cutting box 62. The position of this cylinder 711 is fixed, and the cylinder 711 connected to the bottommost section of the multi-section cylinder 711 and the bottommost section of the multi-section cylinder 711 can rotate relative to each other.

[0106] For example, such as Figure 11As shown, the bottommost section of the cylinder is designated as the first cylinder, and the cylinder adjacent to the bottommost section is designated as the second cylinder. The second cylinder is rotatable relative to the first cylinder, and the cylinder adjustment component is located between the first and second cylinders.

[0107] The connecting component 723 includes a guide sleeve 7231, which is fitted onto the connection between the lowest cylindrical section 711 and the connected cylindrical section 711. The guide sleeve 7231 includes an inner ring and an outer ring, with the inner ring being rotatable relative to the outer ring. The lowest cylindrical section 711 and the connected cylindrical section 711 are respectively connected to the inner ring and the outer ring to achieve relative rotation.

[0108] For example, the bottommost section of the cylinder 711 is connected to the outer ring, and the cylinder 711 connected to the bottommost section of the cylinder 711 is connected to the inner ring.

[0109] One end of the first connecting rod 722 is connected to the outer ring of the guide sleeve 7231 and its position is relatively fixed. The other end of the first connecting rod 722 is pivotally connected to the first adjusting cylinder 721. The other end of the first adjusting cylinder 721 is connected to the cylinder 711 connected to the lowest cylinder 711 in the multi-section cylinder 711 through the second connecting rod 7232 and the pull rod 7233.

[0110] With this configuration, the extension or retraction of the first adjusting cylinder 721 drives the cylinder 711 to swing left and right. For example, when the first adjusting cylinder 721 extends, the force is transmitted to the cylinder 711 through the second connecting rod 7232 and the pull rod 7233, pushing the cylinder 711 to swing to the left. Conversely, when the first adjusting cylinder 721 retracts, it pushes the cylinder 711 to swing to the right.

[0111] Optionally, the throwing cylinder adjustment component 72 further includes a second adjustment cylinder 724. The second adjustment cylinder 724 is located at the upper end of the cylinder 711 connected to the lowermost cylinder 711 in the multi-section cylinder 711, that is, above the second cylinder. The upper end of the second adjustment cylinder 724 is pivotally connected to the cylinder 711 at the upper end of the second cylinder in the multi-section cylinder 711. The height of the entire throwing cylinder component 71 can be adjusted by extending and retracting the second adjustment cylinder 724.

[0112] In some embodiments, the throwing assembly 7 further includes an auxiliary feeding assembly 8, which includes an airflow generator 81, an air supply pipe 82, and a valve component 83. The air outlet of the airflow generator 81 is connected to the throwing cylinder assembly 71. The valve component 83 is installed inside the throwing cylinder assembly 71 and is pivotally connected to the throwing cylinder assembly 71 to connect and disconnect the airflow generator 81 from the throwing cylinder assembly 71. The air inlet of the air supply pipe 82 is connected to the airflow generator 81, and the air outlet of the air supply pipe 82 faces the side of the rotating lens 921 away from the external image acquisition unit 91.

[0113] For example, such as Figure 14 As shown, the airflow generator 81 can be mounted on the frame 100. The outlet of the airflow generator 81 is connected to the cylinder 711 in the throwing cylinder component 71 via an air pipe. The valve component 83 includes a valve 831 and a spring 832. The lower end of the valve 831 is pivotally connected to the cylinder 711, and the upper end of the valve 831 is connected to the spring 832. The other end of the spring 832 is connected to the cylinder 711. When the airflow generator 81 generates pressurized airflow, the valve 831 is blown open by the airflow, and the pressurized airflow enters the cylinder 711. The pressurized airflow is used to assist in the conveying of materials in the cylinder 711, which can improve the material conveying efficiency. Furthermore, the airflow can also reduce the risk of material blockage in the cylinder 711.

[0114] Optionally, a solenoid valve may be provided between the airflow generator 81 and the cylinder 711. The flow rate of the airflow into the cylinder 711 and the opening and closing of the airflow passage between the airflow generator 81 and the cylinder 711 can be adjusted by controlling the opening and closing of the solenoid valve.

[0115] For example, by regularly opening and closing the solenoid valve, the pressurized airflow can enter the cylinder 711 in a regular manner. When the solenoid valve is closed, the air valve 831 is closed due to the pulling force of the spring 832. At the moment when the air valve 831 contacts the cylinder 711, it will knock the cylinder 711 and generate vibration. The vibration helps to knock off the material remaining on the inner wall of the cylinder 711, thereby reducing the risk of material adhering to the inner wall of the cylinder 711.

[0116] It should be noted that a filter screen is provided between the valve 831 and the cylinder 711 to prevent the conveyed material in the cylinder 711 from entering the airflow generator 81 through the opening on the cylinder 711 after the valve 831 is opened.

[0117] For example, an air supply pipe 82 can also be provided, with its inlet connected to the airflow generator 81 and its outlet facing the side of the rotating lens 921 away from the external image acquisition device 91. The pressurized airflow blows away impurities from the outside of the rotating lens 921, improving the clarity of the image acquired by the image acquisition device 91, thereby enhancing the accuracy and safety of the operator's operation of the harvester.

[0118] Optionally, the air inlet of the airflow generator 81 can be connected to the cooling source of a fuel engine or fuel generator. The heat generated by the fuel engine or fuel generator during operation can be used to heat the inside of the cylinder 711 and the outside of the rotating lens 921. In this way, the inside of the cylinder 711 and the rotating lens 921 can be heated in cold or rainy weather, avoiding or reducing material adhesion and lens fogging.

[0119] In some embodiments, the throwing assembly 7 further includes an image acquisition component 9, which is connected to the throwing cylinder assembly 71 and is located at the discharge end of the throwing cylinder assembly 71. The image acquisition component 9 includes an image collector 91 and a dustproof component 92. The dustproof component 92 includes a rotating lens 921 and a driving component 922. The driving component 922 is used to drive the rotating lens 921 to rotate. The rotating lens 921 is located outside the image acquisition end of the image collector 91.

[0120] See Figure 13 and Figure 15 As shown, the image acquisition component 9 is installed on the side of the discharge baffle 712, and the image acquisition end of the image acquisition device 91 is arranged facing the storage bin 1. The image acquisition device 91 is connected to the display in the cab 300, and the driver can observe the material distribution in the storage bin 1 through the image acquisition device 91.

[0121] The dustproof component 92 is fitted on the outside of the image acquisition unit 91, and the rotating lens 921 is located outside the lens of the image acquisition unit 91, and the rotating lens 921 is driven to rotate by the driving component 922.

[0122] For example, see Figure 15 As shown, the driving component 922 includes a driving motor 9221, a driving gear 9222, and a driven gear 9223. The output shaft of the driving motor 9221 is connected to the driving gear 9222. The driving gear 9222 is located on the periphery of the rotating lens 921, and the driven gear 9223 is sleeved on the periphery of the rotating lens 921. In other words, the rotating lens 921 is embedded in the inner ring of the driven gear 9223. For example, the two can be connected by a snap, magnetic attraction, or bolt. The driven gear 9223 and the rotating lens 921 are arranged coaxially, and the driven gear 9223 and the driving gear 9222 mesh with each other. When the driving gear 9222 rotates under the drive of the driving motor 9221, the driven gear 9223 drives the rotating lens 921 to rotate.

[0123] The drive component 922 drives the rotating lens 921 to rotate. Impurities attached to the rotating lens 921 are thrown out under the action of centrifugal force, reducing the risk of impurities sticking to the rotating lens 921, thereby achieving the effect of dust prevention for the image acquisition device 91 and improving the accuracy of image acquisition.

[0124] Furthermore, the airflow transmitted by the airflow generator 81 and the air supply pipe 82 can blow away impurities on the rotating lens 921, further improving the dustproof effect.

[0125] In some embodiments, the harvesting unit 600 further includes a cutting adjustment assembly 10, which is located between the header assembly 6 and the frame 100. The cutting adjustment assembly 10 is used to adjust the position of the header assembly 6 and the throwing assembly 7 in the width direction of the frame 100 and the distance between the header assembly 6 and the throwing assembly 7 and the frame 100.

[0126] See Figure 16 As shown, the cutting adjustment assembly 10 includes a first mounting frame 101, a first sliding frame 102, a second sliding frame 103, a first swing frame 104, and a first telescopic frame 105. The first mounting frame 101 is connected to the vehicle frame 100 and extends in the left-right direction. The first sliding frame 102 and the second sliding frame 103 are respectively connected to the first mounting frame 101 and are movable in the left-right direction. The rear end of the first swing frame 104 is pivotally connected to the second sliding frame 103, and the front end of the first swing frame 104 is pivotally connected to the fixed end of the first telescopic frame 105. The telescopic end of the first telescopic frame 105 is connected to the rear end face of the cutting box 62.

[0127] It should be noted that the first swing frame 104 can drive the first sliding frame 102 to swing in the left and right directions, and the first sliding frame 102 can drive the cutting table assembly 6 and the throwing assembly 7 to move in the up and down directions.

[0128] The cutting adjustment assembly 10 also includes a third adjustment cylinder 106, a fourth adjustment cylinder 107, a fifth adjustment cylinder 108, and a sixth adjustment cylinder 109. The third adjustment cylinder 106 and the fourth adjustment cylinder 107 extend in the left-right direction, the fifth adjustment cylinder 108 extends obliquely in the front-back direction, and the sixth adjustment cylinder 109 extends in the up-down direction.

[0129] The fixed end of the third adjusting cylinder 106 is pivotally connected to the first mounting bracket 101, and the movable end of the third adjusting cylinder 106 is pivotally connected to the first sliding bracket 102. The fixed end of the fourth adjusting cylinder 107 is pivotally connected to the first sliding bracket 102, and the movable end of the fourth adjusting cylinder 107 is pivotally connected to the second sliding bracket 103. The fixed end of the fifth adjusting cylinder 108 is pivotally connected to the second sliding bracket 103, and the movable end of the fifth adjusting cylinder 108 is pivotally connected to the first swing bracket 104. The fixed end of the sixth adjusting cylinder 109 is pivotally connected to the fixed end of the first telescopic bracket 105, and the movable end of the sixth adjusting cylinder 109 is pivotally connected to the telescopic end of the first telescopic bracket 105.

[0130] In this way, by controlling the extension and retraction of the third adjusting cylinder 106 and the fourth adjusting cylinder 107, the position of the first telescopic frame 105 in the left and right directions can be adjusted, thereby adjusting the position of the header assembly 6 and the throwing assembly 7 in the left and right directions, and cooperating with the wheel track adjusting assembly 4 to harvest corn with different row spacings.

[0131] Furthermore, by moving the first telescopic frame 105 to the far left of the frame 100, and cooperating with the second adjusting cylinder 724 in the throwing cylinder adjusting component 72 to lower the height of the throwing cylinder component 71, the other cylinders 711 of the throwing cylinder component 71, except for the two lowest cylinder sections 711, can be placed on the frame 100, thus avoiding the problem of the harvester being unable to travel on paved roads due to excessive throwing cylinder height when not in operation.

[0132] The fifth adjusting cylinder 108 can be used to adjust the distance between the cutting platform assembly 6 and the throwing assembly 7 and the vehicle frame 100. When the fifth adjusting cylinder 108 retracts, the distance between the cutting platform assembly 6 and the throwing assembly 7 and the vehicle frame 100 decreases. Conversely, when the fifth adjusting cylinder 108 extends, the distance between the cutting platform assembly 6 and the throwing assembly 7 and the vehicle frame 100 increases. Furthermore, since the fifth adjusting cylinder 108 is arranged at an angle in the front-rear direction, its extension and retraction can also adjust the left and right positions of the cutting platform assembly 6 and the throwing assembly 7.

[0133] The height of the cutting platform assembly 6 and the height difference between the throwing assembly 7 and the storage box 1 can be adjusted by using the sixth adjusting cylinder 109, thereby adjusting the stubble height and the discharge port height of the throwing cylinder component 71.

[0134] In some embodiments, the harvesting unit 600 further includes a crop-lifting assembly 11, which includes a connecting frame 111 and a crop-lifting pole 112. The connecting frame 111 is connected to the header assembly 6, and the crop-lifting pole 112 is connected to the connecting frame 111.

[0135] See Figure 17 As shown, the lower end of the connecting frame 111 is connected to the cutting box 62. The connecting frame 111 extends in the vertical direction. The supporting straw 112 includes four straws. The four supporting straws 112 are installed on the connecting frame 111 in pairs. In other words, there are two supporting straws 112 in each pair. The two supporting straws 112 are at the same height and are arranged opposite each other in the left and right direction to form the supporting space 1120.

[0136] It should be noted that the front end of the lifting space 1120 has an opening for corn stalks to enter the lifting space 1120, and the opening of the lifting space 1120 is positioned further forward than the inlet of the feed channel 613 in the header assembly 6. Imagine that when the harvester moves forward, since the height of the lifting rod 112 is higher than that of the header assembly 6, the upper end of the stalk enters the lifting space 1120 through the inlet at the front end of the lifting space 1120, that is, the stalk is captured. As the harvester continues to move forward, the bottom of the stalk enters the feed channel 613 in the header assembly 6. The entire corn stalk will be in an inclined state with the bottom towards the rear and the top towards the front. As the root of the corn stalk continues to move into the cutting box 62, the lifting rod 112 can guide the stalk and prevent the stalk from suddenly collapsing and failing to enter the cutting box 62 smoothly.

[0137] For example, see Figure 17 and Figure 18 As shown, the straw stalk 112 includes a first stalk segment 1121 and a second stalk segment 1122. The first stalk segment 1121 is an arc-shaped stalk extending away from the frame 100, and the second stalk segment 1122 is an arc-shaped stalk extending close to the frame 100.

[0138] The distance between the two first pole segments 1121 gradually increases from back to front in the left-right direction, forming an outer control space to better capture the straw. The second pole segment 1122 is semi-circular. When the straw enters the straw-supporting space 1120, the semi-circular second pole segment 1122 is used to support the straw and prevent it from collapsing suddenly.

[0139] See Figure 19 As shown in the figure, this invention also proposes a method for harvesting silage from the male parent of seed maize, used to control a silage harvester. The harvesting method includes the following steps: S100: Obtain the row spacing information of seed corn, control the wheel track adjustment component 4 in the traveling unit 500 based on the row spacing information so that the wheel track of the wheel 424 matches the row spacing, and control the traveling unit 500 to travel along a predetermined route.

[0140] For example, based on the field growth status of seed corn, the planting method of the male and female parent plants can be determined, and the row spacing information of the male and female parent plants can be obtained.

[0141] It should be noted that the row spacing of seed corn can be measured by a ranging radar installed in front of the harvester. For example, a ranging radar that can move left and right can be installed on the left and right sides. The ranging radar emits a detection beam in front of it. If the detection beam is folded by the corn stalk, it will form a reflected beam. When the ranging radar receives the reflected beam, it means that the ranging radar is located near the corn stalk in the left and right direction. The row spacing is obtained by measuring the distance between the left and right ranging radars in the left and right direction.

[0142] Alternatively, before harvesting begins, the row spacing can be manually measured and the information entered into the control system to adjust the wheel track of wheel 424.

[0143] It should be noted that the wheel track adjustment process requires the third hydraulic cylinder to extend or retract while the machine is moving forward or backward at a slow speed to complete the wheel track adjustment of the front and rear axles. In order to prevent the tires from generating axial friction with the ground during the wheel track adjustment process, which may cause tire damage, it is forbidden to adjust the third hydraulic cylinder when the machine is stationary.

[0144] S200: Control the harvesting unit 600 to harvest the crop, and control the throwing component 7 in the harvesting unit 6 to throw the harvested crop to the storage unit 400.

[0145] It should be noted that the left and right positions of the header assembly 6 are determined based on the sowing row spacing information. Similarly, a ranging radar can be installed on the front side of the header assembly 6 to continuously calibrate its left and right position, ensuring that the header assembly 6 can always harvest corn stalks. The harvested corn stalks are transported to the storage bin 1 for temporary storage. Once the storage bin 1 reaches the unloading condition, the material in the storage bin 1 is unloaded. S300: The throwing assembly 7 is controlled to oscillate back and forth at a preset frequency.

[0146] It should be noted that because silage corn has a high moisture content and the corn fiber is still present, the friction and adhesion between corn stalks are stronger than those of dry stalks. If the position of the throwing cylinder component 71 remains unchanged, a cone-shaped accumulation of material will form, which will reduce the storage performance of the storage box 1. Therefore, it is necessary to control the left and right swing of the throwing cylinder component 71 to ensure that the material is distributed as evenly as possible in the storage box 1.

[0147] The frequency of the oscillation of the throwing cylinder component 71 can be determined based on information such as the corn plant spacing in the plot to be harvested and the harvesting rate set per unit time of the harvester.

[0148] For example, if the corn plant spacing in the plot to be harvested is large, it indicates that the corn planting amount is large and the harvester's set harvest amount per unit time is large. In order to achieve the target set value, the operating power of the header assembly 6 and the throwing assembly 7 needs to be increased. Based on the above information, it can be determined that the material feeding amount per unit time in the plot to be harvested is large. The increase in the operating power of the header assembly 6 and the throwing assembly 7 leads to an increase in the material entering the storage bin 1, so it can be expected that the material accumulation speed will increase. At this time, the oscillation frequency of the throwing cylinder component 71 needs to be larger.

[0149] In some embodiments, the method for harvesting seed maize paternal parent silage further includes: S400: Obtain the height of the material stacking around the storage unit 400.

[0150] For example, ranging radars are installed around the top of the storage bin 1. The height of the material piled up around the top of the storage bin 1 is determined by measuring the distance between the material inside the storage bin 1 and the top of the storage bin 1.

[0151] S500: When the difference in height of the surrounding materials reaches the first preset condition, control the throwing component 7 to convey materials to the lowest point.

[0152] For example, the first preset condition is that the difference between the average height of the surrounding materials and the lowest height is greater than 5cm-10cm.

[0153] It should be noted that when the height of a certain position inside the storage bin 1 is more than 5cm to 10cm lower than the average height, it indicates that there is a risk that the material will not flow to that position. That is, the uneven distribution of material in the storage bin 1 increases the risk of excessive accumulation at a single point. At this time, it is necessary to use the throwing component 7 to transport the material to the lowest point to ensure the uniformity of material distribution as much as possible, increase the duration of a single operation, reduce the time of frequent material unloading, and improve harvesting efficiency.

[0154] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0155] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0156] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0157] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "beneath" of the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0158] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0159] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A silage harvester for male parent corn used in seed production, characterized in that, include: Frame; A power unit for providing power to the harvester is mounted on the frame and located at the rear end of the frame in the direction of travel of the frame. A driver's cab, which is mounted on the frame and located at the front end of the frame in the direction of travel of the frame; A storage unit for storing materials is mounted on the frame and located in the middle of the frame in the direction of travel of the frame. A traveling unit is installed below the frame and is connected to the power unit to drive the harvester. The height of the traveling unit is greater than the height of the crop. A harvesting unit is connected to the frame and is located at the foremost end of the frame in the direction of travel of the frame. The harvesting unit is used to harvest crops and transport the harvested crops to the storage unit.

2. The seed corn silage harvester according to claim 1, characterized in that, The travel unit includes a front drive assembly and a rear drive assembly, which are arranged symmetrically along the length of the frame with the storage unit as the center of symmetry.

3. The seed corn silage harvester according to claim 2, characterized in that, Both the front drive assembly and the rear drive assembly include a suspension assembly, a track adjustment assembly, and a steering assembly. The suspension assembly is located between the track adjustment assembly and the vehicle frame, and the steering assembly is connected to the track adjustment assembly.

4. The seed corn silage harvester according to claim 3, characterized in that, The wheelbase adjustment assembly includes a telescopic sleeve and a first wheel component and a second wheel component. The telescopic sleeve extends along the width direction of the frame. The fixed end of the telescopic sleeve is connected to the frame, and the telescopic ends of the telescopic sleeve are respectively connected to the first wheel component and the second wheel component. The first wheel component and the second wheel component can move closer to or further away from each other in the width direction of the frame.

5. The seed corn silage harvester according to claim 4, characterized in that, Both the first wheel assembly and the second wheel assembly include a support shaft, a first support frame, a driver, and a wheel. The upper end of the support shaft is connected to the telescopic sleeve, and the lower end of the support shaft is connected to the first support frame. The driver is mounted on the first support frame, and the output shaft of the driver is connected to the wheel.

6. The seed corn silage harvester according to claim 4, characterized in that, Both the first and second wheel components in the front drive assembly are arranged with kingpin inclination, and both the first and second wheel components in the rear drive assembly are arranged with kingpin inclination. Furthermore, the kingpin inclination angle of the first and second wheel components in the front drive assembly is greater than the kingpin inclination angle of the first and second wheel components in the rear drive assembly.

7. The seed corn silage harvester according to any one of claims 4-6, characterized in that, The suspension assembly includes a linkage component, a shock absorber airbag, a shock absorber, and a limiting chain. The linkage component is arranged laterally along the length of the vehicle frame, and the shock absorber airbag, shock absorber, and limiting chain are arranged longitudinally along the height of the vehicle frame. One end of the linkage component is pivotally connected to the telescopic sleeve, and the other end of the linkage component is pivotally connected to the vehicle frame. The shock absorber airbag, shock absorber, and limiting chain are located between the telescopic sleeve and the vehicle frame.

8. The seed corn silage harvester according to claim 1, characterized in that, The harvesting unit includes a header assembly and a throwing assembly. The header assembly is connected to the vehicle frame and is used to cut straw and transport the cut straw to the throwing assembly. The throwing assembly includes a throwing cylinder component and a throwing cylinder adjustment component. One end of the throwing cylinder component is connected to the header assembly, and the other end of the throwing cylinder component is connected to the storage unit. The throwing cylinder adjustment component is installed on the throwing cylinder component and is used to adjust the swing angle and height of the throwing cylinder component's outlet.

9. A method for harvesting silage from male maize parent plants used for seed production, characterized in that, The harvesting method for controlling a silage harvester includes the following steps: The system acquires information on the row spacing of seed corn, controls the wheel track adjustment component in the traveling unit based on the row spacing information to match the wheel track with the row spacing, and controls the traveling unit to travel along a predetermined route. The harvesting unit controls the header assembly in the harvesting unit to harvest crops, and controls the throwing assembly in the header assembly to throw the harvested crops to the storage unit. The control throwing component swings back and forth at a preset frequency.

10. The method for harvesting seed maize silage from the male parent according to claim 9, characterized in that, Also includes: Obtain the height of the material accumulation around the perimeter of the storage unit; When the height difference of the surrounding material piles reaches the first preset condition, the throwing component is controlled to deliver the material to the lowest point.

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