Auxiliary righting and angle adjusting device for a sugarcane combine harvester tipper

Abstract

This invention relates to the field of agricultural machinery technology, and particularly to a topping-assisting and angle-adjusting device for a sugarcane combine harvester. The device includes an auxiliary straightening mechanism and an angle-adjusting mechanism; these are respectively installed on the topping mechanism of the sugarcane combine harvester. When driven, the angle-adjusting mechanism adjusts the topping mechanism to swing along the pitch direction. The auxiliary straightening mechanism includes a translational structure, a drive assembly, and two straightening rods, which are respectively installed opposite to each other on the translational structure. The translational structure is installed on the fixed frame of the sugarcane combine harvester and adjusts the two straightening rods to move vertically when the topping mechanism is driven. The drive assembly is installed on the translational structure and adjusts the two straightening rods to straighten the sugarcane when extended or to move away from the sugarcane when retracted when driven. This topping-assisting and angle-adjusting device can straighten and push lodged sugarcane back to the topping mechanism for topping after it has been straightened, effectively reducing the missed cutting rate and impurity content of the sugarcane.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, and in particular to a sugarcane combine harvester tip trimming and straightening device. Background Technology

[0002] Sugarcane combine harvesters typically include a lodging mechanism or cane lifter, a topping mechanism, and devices for cutting, conveying, and stripping leaves. During sugarcane harvesting, the topping mechanism is responsible for removing the sugarcane tops to improve the purity of the sugarcane and reduce the impurity rate in subsequent processing. However, in actual sugarcane cultivation, sugarcane is highly susceptible to lodging due to wind, rain, pests, diseases, or varietal characteristics. Traditional topping mechanisms, with their fixed posture, can easily cause lodging of the sugarcane.

[0003] While existing sugarcane combine harvesters have lodging mechanisms at the front end, such as spiral cane lifters or finger chains, to initially lift fallen or severely tilted sugarcane off the ground, these mechanisms cannot further straighten it to a position suitable for tip cutting. Existing tip cutting mechanisms, typically long-arm single-degree-of-freedom mechanisms, only have height adjustment capabilities, with relatively fixed cutter angles and positions. When facing sugarcane that has been lifted by the lodging mechanism but is not upright, the fixed-position tip cutting mechanism cannot adaptively adjust to the actual tilt angle of the sugarcane. This causes the tilted tips to slip past the cutter without being cut, and the cutter may even cut into the main body of the sugarcane instead of the tip, causing the entire sugarcane to break or be damaged. The uncut tips are then mixed into subsequent processes, increasing impurities. Existing improvement solutions include adding multi-degree-of-freedom robotic arms or vision recognition systems to achieve adaptive tip cutting, but such solutions are complex in structure and expensive. Summary of the Invention

[0004] The main objective of this invention is to provide a sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device, which aims to straighten and push the lodged sugarcane back to the tip-cutting mechanism after it has been straightened, thereby effectively reducing the sugarcane's missed cutting rate and impurity content.

[0005] To achieve the above objectives, the present invention proposes an auxiliary straightening and angle adjustment device for sugarcane combine harvester top trimming, comprising an auxiliary straightening mechanism and an angle adjustment mechanism; the auxiliary straightening mechanism and the angle adjustment mechanism are respectively installed on the top trimming mechanism of the sugarcane combine harvester, and the angle adjustment mechanism adjusts the top trimming mechanism to swing along the pitch direction when driven; The auxiliary straightening mechanism includes a translational structure, a drive assembly, and two straightening rods, which are respectively mounted opposite to each other on the translational structure. The translational structure is mounted on the fixed frame of the sugarcane combine harvester and adjusts the two straightening rods to move vertically when the topping mechanism is driven. The drive assembly is mounted on the translational structure and adjusts the two straightening rods to straighten the sugarcane when extended or to move away from the sugarcane when retracted when driven.

[0006] In an optional embodiment, the translational structure includes a limiting member, a moving rod, two sliders, and a leveling member. The limiting member is installed on the tip-cutting mechanism and has a sliding groove. The leveling member is installed on the fixed frame and has two limiting grooves and two through holes, with the two limiting grooves communicating with the corresponding through holes. The moving rod is slidably sleeved in the sliding groove, with both ends passing through the corresponding through holes. The two sliders are installed at both ends of the moving rod and are slidably engaged in the corresponding limiting grooves. When the tip-cutting mechanism is driven, the moving rod moves in the sliding groove and drives the two sliders to move in the corresponding limiting grooves.

[0007] In an optional embodiment, the translational structure includes two connecting parts and a connecting part, the driving assembly includes a first driving part, a track and a push rod, the two connecting parts are respectively installed on the corresponding sliders, the push rod is movably nested in the track, the first driving part and the track are respectively installed on the corresponding connecting parts, the output shaft of the first driving part and the push rod are respectively connected to the connecting part, and the two straightening rods are respectively installed at both ends of the connecting part.

[0008] In an optional embodiment, the two connecting members are each provided with a plurality of fitting grooves, which are respectively fitted with the leveling member to guide the translational structure, the driving component and the two leveling rods to move in the vertical direction.

[0009] In an optional embodiment, one end of the track is provided with a stop block, and one end of the push rod is provided with a protrusion. The protrusion is fixed to the stop block to prevent the push rod from disengaging from the track.

[0010] In an optional embodiment, the translational structure includes two sets of rings, which are respectively sleeved on the moving rod, with their ends abutting against the limiting member and the aligning member, respectively.

[0011] In an optional embodiment, the translational structure includes two covers, which are respectively installed on the aligning member to prevent the two sliders from disengaging from the aligning member.

[0012] In an optional embodiment, the angle adjustment mechanism includes a first mounting member and a second driving member. The first mounting member is mounted on the tip trimming mechanism, and the second driving member is mounted on the first mounting member. The output shaft of the second driving member is connected to the tip trimming mechanism.

[0013] The present invention also proposes a sugarcane combine harvester including a fixed frame, a lodging mechanism, and a topping mechanism, and further includes the aforementioned sugarcane combine harvester topping auxiliary straightening and angle adjustment device. The lodging mechanism is located at the front end of the fixed frame, and the topping mechanism is located above the fixed frame. When driven, the topping auxiliary straightening and angle adjustment device is used to straighten the sugarcane that is still tilted after being lifted by the lodging mechanism and push it to the topping mechanism for topping.

[0014] In an optional embodiment, the tip-cutting mechanism includes a cutting assembly, a long arm, a second mounting member, and a third driving member. The first mounting member, the second mounting member, and the limiting member are respectively mounted on the long arm. One end of the long arm is sleeved on the fixed frame, and the other end is sleeved on the cutting assembly along with the drive shaft of the second driving member. The second driving member is used to control the cutting assembly to swing along the pitch direction. The third driving member is mounted on the fixed frame, and the drive shaft of the third driving member is connected to the long arm to control the long arm to swing along the pitch direction.

[0015] Compared with the prior art, the present invention has the following technical effects: This top-cutting auxiliary straightening and angle-adjusting device tilts and swings when the top-cutting mechanism is driven. The auxiliary straightening mechanism, through a translational structure, ensures that the two straightening rods remain parallel to the ground, preventing the sugarcane stalks from being crushed or scratched, thus reducing harvest loss. The top-cutting mechanism adjusts the tilt angle via an angle-adjusting mechanism, ensuring the cutting component faces the sugarcane top, avoiding cutting vibrations or secondary misalignment caused by sugarcane rebound. Even after the lodging mechanism has been straightened, sugarcane still tilted is straightened by the drive component and pushed to the top-cutting mechanism for cutting, effectively solving the problems of traditional fixed-posture top-cutting mechanisms. This device addresses the issues of missed or uneven cutting caused by poor sugarcane posture, improving the success rate of cutting lodged sugarcane tops and reducing missed cutting rates. The auxiliary straightening and angle-adjusting device for top cutting utilizes a modular design where the auxiliary straightening mechanism extends two straightening rods for straightening, and the angle-adjusting mechanism adjusts the pitch angle of the top cutting mechanism. This adaptable device is suitable for lodged and intertwined sugarcane and can be easily installed on the long arm of existing harvesters' top cutting mechanisms, adding a pitch degree of freedom and auxiliary straightening function without altering the original harvester's power system or main structure. This results in low modification costs and high promotional value. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of an embodiment of a sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device according to the present invention; Figure 2 for Figure 1 One of the perspectives; Figure 3 for Figure 2 A cross-sectional view along the AA direction; Figure 4 for Figure 2 A sectional view along the BB direction.

[0018] Explanation of icon numbers: 100 Auxiliary Correction Agency 19 track 101 Translational structure 19a stop 10 Limiting component 20 putter 10a Slide chute 20a protrusion 11 Moving pole 210 straightening pole 12 slider 300 Angle Adjustment Mechanism 13 Arrange the items 30 First installation component 13a Limiting groove 31 Second drive unit 13b Through hole 400 sugarcane combine harvester 14 Connector 401 Fixed rack 14a Fitting groove 402 Collapse mechanism 15 connector 403 Tip-cutting mechanism 16 Ring 40 Cutting components 17 Cap 41 Long arm 180 Driver components 42 Second mounting component 18 First driving component 43 Third drive unit The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0020] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0021] Furthermore, the use of terms such as "first" and "second" in this invention is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0022] Please refer to Figures 1 to 4 This invention proposes a sugarcane combine harvester tip-cutting auxiliary straightening and angle adjustment device, which includes an auxiliary straightening mechanism 100 and an angle adjustment mechanism 300. The auxiliary straightening mechanism 100 and the angle adjustment mechanism 300 are respectively installed on the tip-cutting mechanism 403 of the sugarcane combine harvester 400. When driven, the angle adjustment mechanism 300 adjusts the tip-cutting mechanism 403 to swing along the pitch direction.

[0023] Please refer to Figure 1 The auxiliary straightening mechanism 100 includes a translational structure 101, a drive assembly 180, and two straightening rods 210, which are respectively mounted opposite to each other on the translational structure 101. The translational structure 101 is mounted on the fixed frame 401 of the sugarcane combine harvester 400 and adjusts the two straightening rods 210 to move vertically when the topping mechanism 403 is driven. The drive assembly 180 is mounted on the translational structure 101 and adjusts the two straightening rods 210 to straighten the sugarcane when extended or to move away from the sugarcane when retracted when driven. Preferably, the two straightening rods 210 can be made of quenched and tempered 65Mn steel with a hard chrome plating, which is impact-resistant, can absorb impact force, is wear-resistant and rust-proof, and prevents sugarcane juice corrosion. The surface can be coated with polyurethane to reduce damage to the sugarcane, but it is not limited to these.

[0024] Please continue to refer to Figures 2 to 4 Specifically, the translational structure 101 includes a limiting member 10, a moving rod 11, two sliders 12, and a leveling member 13. The limiting member 10 is fixed to the cutting mechanism 403 by bolts and has a sliding groove 10a. The leveling member 13 is fixed to the fixed frame 401 by bolts and has two limiting grooves 13a and two through holes 13b. The two limiting grooves 13a are respectively connected to the corresponding through holes 13b. The moving rod 11 is slidably fitted in the sliding groove 10a, and its two ends pass through the corresponding through holes 13b respectively, with a fitting clearance of H8 / f7. A dustproof sealing ring, a skeleton oil seal, or a J-type dustproof ring is installed at the position where the moving rod 11 passes through the through hole 13b of the leveling member 13 to prevent dirt and sugarcane scraps from entering the sliding surface and avoid jamming. The two sliders 12 are respectively fixed to the two ends of the moving rod 11 by set screws, and are respectively slidably locked in the corresponding limiting grooves 13a. When the cutting mechanism 403 is driven, the moving rod 11 moves in the sliding groove 10a and drives the two sliders 12 to move in the corresponding limiting grooves 13a respectively. The two sliders 12 are respectively interference-fitted with the corresponding limiting grooves 13a.

[0025] Preferably, the limiting member 10 can be made of QT600-3 material, which has high strength and good shock absorption. The sliding groove 10a is surface-quenched to improve wear resistance. The surface roughness Ra of the sliding groove 10a is ≤1.6μm to ensure smooth movement of the moving rod 11, but it is not limited to this. Preferably, the moving rod 11 can be made of quenched and tempered 40Cr material, which has high strength and high rigidity, straightness ≤0.05mm / m, and outer diameter roughness Ra≤0.8μm to ensure smooth sliding, but it is not limited to this. Preferably, the two sliders 12 can be made of wear-resistant brass, which has self-lubricating properties and a low coefficient of friction, but it is not limited to this. Preferably, the straightening member 13 can be made of 45 steel material. The limiting groove 13a is surface-quenched by high frequency. The parallelism of the two limiting grooves 13a is ≤0.1mm to ensure the parallelism of the two straightening rods 210 with the ground, but it is not limited to this. Grease nipples are designed on the sliding groove 10a of the limiting member 10 and the limiting groove 13a of the aligning member 13. Lithium-based grease is periodically added through the grease nipples to extend the service life.

[0026] Further, please refer to Figure 2 The translational structure 101 includes two connecting parts 14 and a connecting part 15. The drive assembly 180 includes a first drive part 18, a track 19, and a push rod 20. The two connecting parts 14 are respectively fixed to the corresponding sliders 12 by bolts. The push rod 20 is movably nested in the track 19 with a fit clearance of H8 / f7. The first drive part 18 is fixed to the corresponding connecting part 14 by an ear and a pin or by a thread and a nut. The track 19 is fixed to the corresponding connecting part 14 by a flange and bolts. The output shaft of the first drive part 18 is connected to the connecting part 15 through a floating joint to absorb eccentricity and protect the first drive part 18. The push rod 20 is rigidly fixed to the connecting part 15 by threads and double locking nuts. Both are secured with locking nuts and thread-locking adhesive to prevent loosening. The two straightening rods 210 are respectively bolted to both ends of the connecting part 15. A quick-change structure with pins and cotter pins can also be designed.

[0027] Please refer to Figures 2 to 4 Each of the two connecting parts 14 is provided with a plurality of fitting grooves 14a, which are respectively fitted into the leveling part 13 to guide the translational structure 101, the drive assembly 180, and the two leveling rods 210 to move in the vertical direction. One end of the track 19 is provided with a stop block 19a, and one end of the push rod 20 is provided with a protrusion 20a, which is secured to the stop block 19a to prevent the push rod 20 from disengaging from the track 19. Preferably, the materials of the two connecting parts 14 and the connecting part 15 can be Q355B, with a milling surface Ra≤3.2μm for the mounting plane, resulting in moderate cost, but this is not a limitation. Preferably, the materials of the track 19 and the push rod 20 can be 304 stainless steel, which is corrosion-resistant, with an inner hole Ra≤0.4μm for the track 19 and a grinding Ra≤0.8μm for the push rod 20. The low coefficient of friction and high fitting accuracy ensure that the track 19 and the push rod 20 perform piston-cylinder motion, but this is not a limitation.

[0028] Please continue to refer to Figures 2 to 4 The translational structure 101 includes two rings 16 and two caps 17. The two rings 16 are respectively sleeved on the moving rod 11, and their ends abut against the limiting member 10 and the aligning member 13, respectively, for axial positioning and buffering. The two caps 17 are respectively fixed to the aligning member 13 by countersunk screws. The material can be Q235B, which is used to prevent the two sliders 12 from disengaging from the aligning member 13. Preferably, the material of the two rings 16 can be polyoxymethylene, which is wear-resistant and elastic, and can absorb the axial impact of the moving rod 11 and reduce hard impacts, but it is not limited to this.

[0029] Please refer to Figure 1 and Figure 2 The angle adjustment mechanism 300 includes a first mounting part 30 and a second driving part 31. The first mounting part 30 is fixed to the tip trimming mechanism 403 by welding or bolts. The second driving part 31 is fixed to the first mounting part 30 by an ear ring plus a pin or by a thread plus a nut. The output shaft of the second driving part 31 is connected to the tip trimming mechanism 403.

[0030] Please continue to refer to Figure 1 and Figure 2 The present invention also proposes a sugarcane combine harvester 400, which includes a fixed frame 401, a lodging mechanism 402, and a topping mechanism 403, and also includes the topping-assisted straightening and angle-adjusting device. The lodging mechanism 402 is disposed at the front end of the fixed frame 401, and the topping mechanism 403 is disposed above the fixed frame 401. When driven, the topping-assisted straightening and angle-adjusting device is used to straighten the sugarcane that is still tilted after being lifted by the lodging mechanism 402 and push it to the topping mechanism 403 for topping.

[0031] Please continue to refer to Figure 1 and Figure 2 The topping mechanism 403 includes a cutting assembly 40, a long arm 41, a second mounting member 42, and a third driving member 43. The first mounting member 30, the second mounting member 42, and the limiting member 10 are respectively fixed to the long arm 41 by bolts or welding. One end of the long arm 41 is sleeved on the fixed frame 401, and the other end is sleeved on the rotating shaft of the cutting assembly 40, along with the drive shaft of the second driving member 31. The second driving member 31 is used to control the cutting assembly 40 to swing in the pitch direction. The cutting assembly 40 can be a cutter or a cutting disc for cutting sugarcane tops. The third driving member 43 is fixed to the fixed frame 401 by a lug and a pin or by a thread and a nut. The drive shaft of the third driving member 43 is connected to the long arm 41 through a floating joint and is used to control the long arm 41 to swing in the pitch direction.

[0032] Preferably, the first mounting component 30 and the second mounting component 42 can be made of Q355B, which has good welding performance and a critical mounting surface milling Ra≤3.2μm, but are not limited thereto. Preferably, the first drive component 18, the second drive component 31 and the third drive component 43 are hydraulic cylinders, because the sugarcane combine harvester 400 has its own hydraulic system, requiring no additional power source, resulting in low cost and high thrust, suitable for high-frequency, heavy-load straightening and angle adjustment work, but are not limited thereto.

[0033] Understandably, the sugarcane combine harvester 400 is equipped with a PLC control system, a touch screen, or physical buttons to control the topping, auxiliary straightening, and angle adjustment device. Start-stop operations can be completed via the touch screen or physical buttons. Position sensors installed on the topping mechanism 403 and the auxiliary straightening mechanism 100, angle sensors installed on the topping mechanism 403, the first drive component 18, the second drive component 31, and the third drive component 43 are respectively connected to the PLC. After the target position is input, the PLC controls the third drive component 43 to drive the pitch adjustment mechanism of the long arm 41. The height of the 403 tip trimmer and the two straightening rods 210 controls the second drive unit 31 to drive the tip trimmer mechanism 403 to adjust the tip trimmer's pitch angle, and controls the first drive unit 18 to drive the two straightening rods 210 to straighten the sugarcane when extended or to move away from the sugarcane when retracted. Each action relies on feedback from position and angle sensors to confirm completion, and an overtime monitoring and fault alarm mechanism is provided. If any action is not completed within the specified time or triggers an emergency stop, the PLC immediately cuts off all outputs and sounds an alarm. After the fault is cleared, the alarm is cleared by the reset button and the system returns to standby mode. The PLC can be a Siemens S7-1200 or Mitsubishi FX5U. The touch screen communicates with the PLC via RS485 or Ethernet using Modbus RTU or PROFINET protocols, and the physical buttons are directly connected to the PLC input points. The two are controlled in parallel logic, but are not limited to this.

[0034] In the specific application of this application, the tip-cutting auxiliary straightening and angle-adjusting device tilts and swings when the tip-cutting mechanism 403 is driven. The auxiliary straightening mechanism 100, through the translation structure 101, ensures that the two straightening rods 210 remain parallel to the ground, preventing the sugarcane stalks from being crushed or scratched, thus reducing harvest loss. The tip-cutting mechanism 403 adjusts the tilt angle through the angle-adjusting mechanism 300, so that the cutting component 40 faces the sugarcane tip, avoiding cutting vibration or secondary misalignment caused by sugarcane rebound. After the lodging mechanism 402 is lifted, the sugarcane that is still tilted is straightened by the drive component 180 driving the two straightening rods 210 and pushed to the tip-cutting mechanism 403 for tip cutting, effectively solving the problems of traditional methods. The fixed-posture topping mechanism 403 addresses the issues of missed or off-center cutting caused by poor sugarcane posture, improving the success rate of topping cutting lodged sugarcane and reducing the missed cutting rate. The auxiliary straightening mechanism 100 of the topping auxiliary straightening and angle adjustment device drives the two straightening rods 210 to extend the straightening and angle adjustment mechanism 300 to adjust the pitch angle of the topping mechanism 403. The modular design, combined with the topping mechanism 403, allows for topping cutting, adapting to lodged and intertwined sugarcane. It is also easy to install on the long arm 41 of the topping mechanism 403 of existing harvesters, adding a pitch degree of freedom and auxiliary straightening function to the topping mechanism 403. This does not require changes to the original harvester's power system and main structure, resulting in low modification costs and high promotional value.

[0035] The above description is merely a preferred embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made using the contents of the present invention's specification and drawings under the inventive concept of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A sugarcane combine harvester tip trimming auxiliary straightening and angle adjustment device, characterized in that, It includes an auxiliary straightening mechanism and an angle adjustment mechanism; the auxiliary straightening mechanism and the angle adjustment mechanism are respectively installed on the tip-cutting mechanism of the sugarcane combine harvester, and the angle adjustment mechanism adjusts the tip-cutting mechanism to swing along the pitch direction when driven; The auxiliary straightening mechanism includes a translational structure, a drive assembly, and two straightening rods, which are respectively mounted opposite to each other on the translational structure. The translational structure is mounted on the fixed frame of the sugarcane combine harvester and adjusts the two straightening rods to move vertically when the topping mechanism is driven. The drive assembly is mounted on the translational structure and adjusts the two straightening rods to straighten the sugarcane when extended or to move away from the sugarcane when retracted when driven.

2. The sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device as described in claim 1, characterized in that, The translational structure includes a limiting member, a moving rod, two sliders, and a leveling member. The limiting member is installed on the tip-cutting mechanism and has a sliding groove. The leveling member is installed on the fixed frame and has two limiting grooves and two through holes. The two limiting grooves are respectively connected to the corresponding through holes. The moving rod is slidably sleeved in the sliding groove, and its two ends pass through the corresponding through holes. The two sliders are respectively installed at both ends of the moving rod and are slidably engaged in the corresponding limiting grooves. When the tip-cutting mechanism is driven, the moving rod moves in the sliding groove and drives the two sliders to move in the corresponding limiting grooves.

3. The sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device as described in claim 2, characterized in that, The translational structure includes two connecting parts and a connecting part. The driving component includes a first driving part, a track and a push rod. The two connecting parts are respectively installed on the corresponding sliders. The push rod is movably nested in the track. The first driving part and the track are respectively installed on the corresponding connecting parts. The output shaft of the first driving part and the push rod are respectively connected to the connecting part. The two straightening rods are respectively installed at both ends of the connecting part.

4. The sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device as described in claim 3, characterized in that, The two connecting parts are each provided with a plurality of fitting grooves, which are respectively fitted into the leveling part to guide the translational structure, the driving component and the two leveling rods to move in the vertical direction.

5. The sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device as described in claim 4, characterized in that, One end of the track is provided with a stop block, and one end of the push rod is provided with a protrusion. The protrusion is fixed to the stop block to prevent the push rod from disengaging from the track.

6. The sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device as described in claim 5, characterized in that, The translational structure includes two sets of rings, which are respectively sleeved on the moving rod, with their ends abutting against the limiting member and the aligning member, respectively.

7. The sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device as described in claim 6, characterized in that, The translational structure includes two covers, which are respectively installed on the balancing component to prevent the two sliders from detaching from the balancing component.

8. The sugarcane combine harvester tip-cutting auxiliary straightening and angle-adjusting device as described in claim 7, characterized in that, The angle adjustment mechanism includes a first mounting component and a second driving component. The first mounting component is mounted on the tip trimming mechanism, and the second driving component is mounted on the first mounting component. The output shaft of the second driving component is connected to the tip trimming mechanism.

9. A sugarcane combine harvester, characterized in that, The device includes a fixed frame, a lodging mechanism, and a topping mechanism, and further includes a topping-assisting and angle-adjusting device for sugarcane combine harvesters according to any one of claims 1 to 8. The lodging mechanism is located at the front end of the fixed frame, and the topping mechanism is located above the fixed frame. When driven, the topping-assisting and angle-adjusting device is used to straighten the sugarcane that is still tilted after being lifted by the lodging mechanism and push it to the topping mechanism for topping.

10. A sugarcane combine harvester as described in claim 9, characterized in that, The tip-cutting mechanism includes a cutting assembly, a long arm, a second mounting component, and a third driving component. The first mounting component, the second mounting component, and the limiting component are respectively mounted on the long arm. One end of the long arm is sleeved on the fixed frame, and the other end is sleeved on the cutting assembly along with the drive shaft of the second driving component. The second driving component is used to control the cutting assembly to swing along the pitch direction. The third driving component is mounted on the fixed frame, and the drive shaft of the third driving component is connected to the long arm to control the long arm to swing along the pitch direction.

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