Adjustable multifunctional agricultural machine chassis structure

Abstract

The utility model provides a kind of adjustable multifunctional agricultural machine chassis structure, comprising: chassis, driving motor, gear box, first rotating shaft, second rotating shaft, first transmission structure, second transmission structure, bevel gear reversing assembly and pushing device;Driving motor output end is connected with gear box, gear box drives first rotating shaft and second rotating shaft rotation;Gear box is linked with first rotating shaft, and first transmission structure is driven to rotate rotary tillage component;Gear box is linked with second rotating shaft, and the direction of power transmission is adjusted by bevel gear reversing assembly, and second transmission structure is driven to rotate blade in cooperation;Pushing device includes horizontal drive cylinder, vertical drive cylinder, moving plate, mounting plate and quick release head, and work position is flexibly adjusted by double-cylinder linkage.The utility model realizes synchronous operation by gear box double-output synchronous drive double-operation device, and adjusts and quick release structure with double cylinder, and improves adaptability and expansibility.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery and equipment technology, specifically to an adjustable multi-functional agricultural machinery chassis structure. Background Technology

[0002] With the rapid development of modern agriculture, farmland operations have placed higher demands on the multifunctionality, operational efficiency, and adaptability of agricultural machinery. As the core load-bearing and power output component of agricultural machinery, the structural design of the agricultural machinery chassis directly determines the overall operating performance of the machine.

[0003] Most existing agricultural machinery chassis use a single-power, single-operation design. This chassis can only drive a single operating component. If multiple operations such as cutting or rotary tillage are required, the machine must be stopped to replace the operating component or switch the transmission path, interrupting the operation process and resulting in low efficiency. At the same time, it cannot adjust the height or level of the operating component, making it difficult to adapt to the operational needs of different terrains and crops. Furthermore, the disassembly and assembly of functional components require specialized tools, making the operation cumbersome and time-consuming. Utility Model Content

[0004] The purpose of this invention is to provide an adjustable, multifunctional agricultural machinery chassis structure to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] An adjustable multi-functional agricultural machinery chassis structure includes: a chassis, a drive motor, a gearbox, a first rotating shaft, a second rotating shaft, a first transmission structure, a second transmission structure, a bevel gear reversing assembly, and a pushing device;

[0007] The drive motor and gearbox are fixedly mounted on the chassis. The output end of the drive motor is connected to the gearbox, and the gearbox synchronously drives the first and second rotating shafts to rotate.

[0008] The gearbox is linked to the first rotating shaft, and transmits power through the first transmission structure to drive the rotary tillage assembly to turn and loosen the soil, break up the soil compaction, and lay the foundation for subsequent operations.

[0009] The gearbox is linked to the second rotating shaft. The power transmission direction is adjusted by the bevel gear reversing component. The power is transmitted to the blade in conjunction with the second transmission structure, which drives the blade to rotate at high speed. It first cuts and breaks up the original soil, breaking up large clods of soil and impurities, thus clearing obstacles for subsequent operations.

[0010] The pushing device is mounted on the chassis and includes a horizontal drive cylinder, a vertical drive cylinder, a moving plate, a mounting plate, and a quick-release head. Through the coordinated linkage of the horizontal drive cylinder and the vertical drive cylinder, the horizontal position and working height of the mounting plate can be flexibly adjusted to adapt to different working scenarios. The quick-release head can be quickly disassembled to connect with external functional components, realizing diversified expansion and switching of working functions.

[0011] Preferably, a cab for controlling the overall operation of the equipment is fixedly installed on the top of the chassis, and tires for movement are symmetrically installed on both sides of the chassis. The cab allows the operator to control the operating status of the equipment in real time, improving operational safety and ease of operation. The symmetrically distributed tires ensure that the chassis moves smoothly and adapts to the travel needs of different farmland terrains.

[0012] Preferably, the gearbox has two symmetrically distributed lateral output ends, each of which is coaxially and fixedly connected to one end of a first rotating shaft. Both ends of each first rotating shaft are fixedly installed on the inner side wall of the chassis through bearing seats. The dual lateral output ends achieve balanced power distribution. Combined with the fixing method of the bearing seats, the coaxiality and stability of the first rotating shaft when rotating at high speed can be guaranteed, thereby improving the power transmission efficiency of rotary tillage.

[0013] Preferably, the first transmission structure includes a first driving wheel, a first synchronous belt, a first driven wheel, and a support base. The first driving wheel is sleeved in the middle of the first rotating shaft, the support base is fixed below the chassis, the first driven wheel is rotatably mounted on the support base, the first driving wheel and the first driven wheel are driven together by the first synchronous belt, the first driven wheel is fixedly connected to the rotary tillage assembly, the rotary tillage assembly is installed below the chassis and behind the blades, the support base can ensure the stable operation of the transmission components, and the front and rear arranged working positions can realize the progressive operation of cutting followed by rotary tillage, thereby improving the soil treatment effect.

[0014] Preferably, the gearbox has an axial output end on the end face away from the drive motor. This axial output end is coaxially and fixedly connected to the driving bevel tooth of the first bevel gear group. The driven bevel tooth of the first bevel gear group is sleeved on the second rotating shaft. Both ends of the second rotating shaft are fixedly installed on the inner side wall of the chassis through bearing seats. The cooperation between the axial output end and the bevel gear group can realize the precise reversal of the power direction. The bearing seat fixing method ensures the operating accuracy of the second rotating shaft and ensures the stable and reliable power transmission of the cutting device.

[0015] Preferably, the second transmission structure includes a second driving pulley, a second synchronous belt, a second driven pulley, and a third rotating shaft. The second driving pulley is coaxially fixed with the driven bevel teeth of the first bevel gear group. Both ends of the third rotating shaft are mounted on the inner sidewall of the chassis through bearing seats. The second driven pulley is sleeved on one end of the third rotating shaft. The second synchronous belt is sleeved between the second driving pulley and the second driven pulley. The second synchronous belt transmission can reduce energy loss during power transmission and provide smooth transmission without impact. With the stable installation of the third rotating shaft, the power output of the cutting device can be continuously and stably guaranteed.

[0016] Preferably, the other end of the third rotating shaft is fitted with the active bevel tooth of the second bevel tooth group, and the driven bevel tooth of the second bevel tooth group is fitted with one end of the cutter shaft. The cutter shaft is installed at the front end of the chassis, and the blade is fixed at the lower end of the cutter shaft. The secondary bevel tooth reversal can accurately adjust the power transmission direction, making the blade installation angle and cutting posture more reasonable, so as to fully contact the original soil and efficiently crush it, thereby improving the targeting and effect of the cutting operation.

[0017] Preferably, the horizontal drive cylinder and the vertical drive cylinder are fixed on the front of the chassis. The output end of the horizontal drive cylinder is fixedly connected to one side of the moving plate, and the output end of the vertical drive cylinder is fixedly connected to the top of the moving plate. The mounting plate is fixed below the moving plate, and the quick-release head is set at the bottom of the mounting plate. The dual cylinders work together to realize multi-dimensional flexible adjustment of the horizontal and vertical dimensions of the mounting plate, adapting to the needs of different crops and different working depths. The quick-release head can quickly complete the disassembly and assembly of external functional components, greatly improving the functional expansion efficiency of the chassis.

[0018] Compared with the prior art, the beneficial effects of this utility model are:

[0019] This utility model's gearbox synchronously drives the first and second rotating shafts through a lateral output end and an axial output end, thereby enabling the cutting device and the rotary tillage device to work together. Compared with the shortcomings of existing technologies, such as frequent component replacement and low operating efficiency, this solution simplifies the transmission system structure and achieves synchronous linkage of the two operating devices, improving operating efficiency while reducing equipment manufacturing costs and subsequent maintenance difficulties.

[0020] This invention utilizes a combined transmission structure of synchronous belt drive and bevel gear reversing assembly to achieve smooth power transmission and precise directional adjustment. Synchronous belt drive offers advantages such as smooth transmission, low noise, and shock absorption, effectively reducing energy loss during power transmission; the bevel gear assembly allows for flexible adjustment of the power direction, adapting to the front-end mounting layout of the cutting device. Compared to existing rigid transmission technologies prone to impact and severe wear, this solution provides a more stable transmission system with a longer service life.

[0021] This invention allows for multi-dimensional flexible adjustment of the mounting plate's horizontal position and operating height, adapting to the needs of different crop planting row spacings and operating depths. The quick-release head structure enables rapid disassembly and replacement of external functional components without the need for specialized tools. Compared to existing technologies with their limited adjustment dimensions and cumbersome disassembly and assembly, this solution significantly enhances the chassis's multi-functional expandability, meeting various farmland operation needs beyond rotary tillage and cutting, thus offering wider adaptability. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0023] Figure 2 This is an internal sectional view of the entire utility model.

[0024] Figure 3 This is an internal sectional view of the entire utility model from another perspective.

[0025] Figure 4 This is an internal cross-sectional view of the blade of this utility model.

[0026] Figure 5 This is a schematic diagram of the structure of the propulsion device of this utility model.

[0027] In the diagram: 1. Cab; 2. Chassis; 201. Tire; 202. Drive motor; 203. Gearbox; 301. First shaft; 302. First drive pulley; 303. First timing belt; 304. First driven pulley; 305. Support seat; 306. Rotary tillage assembly; 401. Second shaft; 402. First bevel gear set; 403. Second drive pulley; 404. Second timing belt; 405. Second driven pulley; 501. Third shaft; 502. Second bevel gear set; 503. Blade assembly shaft; 504. Blade; 6. Pushing device; 601. Horizontal drive cylinder; 602. Vertical drive cylinder; 603. Moving plate; 604. Mounting plate; 605. Quick release head. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed", "equipped with", "sleeved with", "connected", etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0030] Example:

[0031] Please see Figures 1 to 5 This utility model provides a technical solution:

[0032] An adjustable multi-functional agricultural machinery chassis structure includes: chassis 2, drive motor 202, gearbox 203, first rotating shaft 301, second rotating shaft 401, first transmission structure, second transmission structure, bevel gear reversing assembly, and push device 6;

[0033] The chassis 2 supports and secures the various functional components mounted on it, providing a stable support foundation for the entire machine. The drive motor 202 is fixedly mounted on the chassis 2, and its output end is connected to the gearbox 203. It converts electrical energy into mechanical energy and outputs power to the gearbox 203 through its output end. The gearbox 203 is fixedly mounted on the chassis 2, and its input end is connected to the output end of the drive motor 202. Its output end is correspondingly engaged with the first rotating shaft 301 and the second rotating shaft 401. The first rotating shaft 301 and the second rotating shaft 401 receive the power transmitted by the gearbox 203 and rotate accordingly.

[0034] The gearbox 203 is linked to the first rotating shaft 301 and establishes a power connection with the rotary tillage assembly 306 through the first transmission structure. The first transmission structure connects the first rotating shaft 301 and the rotary tillage assembly 306, establishing a power transmission path. The power output from the first rotating shaft 301 is transmitted to the rotary tillage assembly 306, ensuring stable and efficient power transmission and driving the rotary tillage assembly 306 to operate. During the operation of the rotary tillage assembly 306, the soil compaction is broken up, the soil structure is optimized, and the foundation is laid for subsequent agricultural operations.

[0035] The gearbox 203 is linked to the second rotating shaft 401, and outputs power to the second rotating shaft 401, providing power support for the operation of the blade 504. The second rotating shaft 401 receives the power output from the gearbox 203 and transmits the power to the bevel gear reversing assembly. The second transmission structure connects the bevel gear reversing assembly and the blade 504, receives the power after the direction is adjusted, and transmits the power after the direction is adjusted by the bevel gear reversing assembly to the blade 504. The blade 504 performs cutting and crushing operations on the original soil. Under high-speed operation, it breaks up large clods and impurities in the soil, optimizes the initial state of the soil, and clears obstacles for subsequent operations.

[0036] The pushing device 6 is mounted on the chassis 2. The pushing device 6 consists of a horizontal drive cylinder 601, a vertical drive cylinder 602, a moving plate 603, a mounting plate 604, and a quick-release head 605. The horizontal drive cylinder 601 adjusts the horizontal position of the mounting plate 604, the vertical drive cylinder 602 adjusts the working height of the mounting plate 604, the moving plate 603 connects the horizontal drive cylinder 601, the vertical drive cylinder 602 and the mounting plate 604, and drives the mounting plate 604 to complete the adjustment of the horizontal position and working height. The quick-release head 605 quickly connects or disconnects external functional components to realize diversified expansion and switching of working functions.

[0037] The cab 1 is fixedly installed on the top of the chassis 2; it allows the operator to control the overall operation of the equipment, facilitating real-time monitoring of the equipment's operating status and improving operational safety and ease of operation. Tires 201 are symmetrically installed on both sides of the chassis 2, providing support for the chassis 2's movement, ensuring stable movement, and adapting to the travel needs of different farmland terrains.

[0038] The gearbox 203 has two symmetrically distributed lateral output ends, each coaxially fixedly connected to one end of a first rotating shaft 301, achieving precise docking between the power output end and the transmission components. Through this dual lateral output end structure, the power received is evenly distributed to the two first rotating shafts 301, providing a stable and balanced power source for rotary tillage operations and ensuring synchronous operation of the two sets of rotary tillage-related components. Both ends of each first rotating shaft 301 are fixedly mounted to the inner wall of the chassis 2 via bearing seats, receiving the power transmitted from the lateral output ends of the gearbox 203 and transmitting it to the subsequent rotary tillage transmission structure. Deep groove ball bearings can be used for the bearing seats. Deep groove ball bearings are suitable for the high-speed operation of the first rotating shaft 301, effectively reducing rotational friction resistance. Combined with the symmetrical installation method, this ensures the coaxiality and stability of the first rotating shaft 301 during high-speed rotation, preventing shaft wobble and improving the power transmission efficiency of rotary tillage operations.

[0039] The support base 305 of the first transmission structure is fixedly installed below the chassis 2. The first drive wheel 302 is tightly fitted around the middle of the first rotating shaft 301 and forms a linkage relationship with the first rotating shaft 301. The first driven wheel 304 is rotatably mounted on the support base 305. The first synchronous belt 303 is tensioned and fitted between the first drive wheel 302 and the first driven wheel 304 to form a stable transmission relationship. At the same time, the first driven wheel 304 is also fixedly connected to the rotary tillage assembly 306 installed below the chassis 2 and located behind the blade 504. During operation, the first rotating shaft 301 drives the first drive wheel 302 to rotate synchronously. The first drive wheel 302 transmits power smoothly and without impact to the first driven wheel 304 through the first synchronous belt 303. The first driven wheel 304 is precisely positioned and stably supported by the five blades 504, effectively preventing it from shaking or shifting during rotation, preventing the first synchronous belt 303 from falling off or failing, and ensuring the operational stability of the entire transmission structure. The rotary tillage component 306, which is fixedly connected to the first driven wheel 304, operates synchronously to carry out deep tillage and loosening operations on the soil that has been pre-cut and broken by the blades 504. Through the progressive operation layout of the blades 504 cutting first and the rotary tillage component 306 loosening later, large soil clods are further refined, the soil compaction is broken up, and the uniformity and looseness of soil particles are optimized. Ultimately, this improves the overall soil treatment effect and meets the needs of precision planting operations.

[0040] The gearbox 203 has an axial output end on its end face away from the drive motor 202. This axial output end is coaxially and fixedly connected to the driving bevel gear of the first bevel gear set 402 to ensure concentricity during power transmission. The driven bevel gear of the first bevel gear set 402 is tightly fitted onto the second rotating shaft 401, forming a linkage relationship with the second rotating shaft 401. Both ends of the second rotating shaft 401 are fixedly mounted to the inner wall of the chassis 2 via bearing seats. The bearing seats are rigidly connected to the inner wall of the chassis 2 by bolts, and the inner ring of the bearing seat is interference-fitted with the end of the second rotating shaft 401. During operation, the gearbox 203 transmits power to the first drive motor 202 through the axial output end. The active bevel gear of the bevel gear assembly 402 drives the driven bevel gear to rotate. By utilizing the transmission characteristics of bevel gear meshing, the power direction is precisely reversed to adapt to the front working layout of the cutting device. The bearing housing plays a dual role of radial positioning and axial limiting for the second rotating shaft 401, effectively limiting the radial wobble and axial movement of the second rotating shaft 401 during high-speed operation, ensuring the operating accuracy of the second rotating shaft 401, reducing rotational friction resistance, and avoiding power loss or component wear caused by shaft offset. Ultimately, it ensures that the power can be stably and reliably transmitted to the cutting device, providing continuous power support for the cutting tool 504 to efficiently cut the soil.

[0041] The second transmission structure includes a second driving pulley 403, a second synchronous belt 404, a second driven pulley 405, and a third rotating shaft 501. The second driving pulley 403 is coaxially and fixedly connected to the driven bevel gear of the first bevel gear set 402 to ensure concentricity and stability of power transmission. Both ends of the third rotating shaft 501 are fixedly mounted to the inner wall of the chassis 2 via bearing seats. The bearing seats are rigidly connected to the inner wall of the chassis 2 by bolts, and the inner ring of the bearing seat is interference-fitted with the end of the third rotating shaft 501. The second driven pulley 405 is tightly fitted onto one end of the third rotating shaft 501. The second synchronous belt 404 is tensioned and fitted between the second driving pulley 403 and the second driven pulley 405, forming a stable transmission connection. During operation, the first bevel gear set 402 drives the first driving pulley 403 to drive the second driven pulley 405. The rotating bevel gear drives the second driving wheel 403 to rotate synchronously. The second driving wheel 403 transmits power to the second driven wheel 405 through the second synchronous belt 404, which in turn drives the third rotating shaft 501 to rotate. The flexible transmission characteristics of the synchronous belt can effectively reduce energy loss during power transmission, and the transmission process is smooth and shock-free, avoiding the impact wear of components caused by rigid transmission. At the same time, the bearing seat plays a role in radial positioning and axial limiting of the third rotating shaft 501, ensuring the coaxiality and stability of the third rotating shaft 501 when it is running at high speed, and preventing transmission failure caused by shaft deviation. With the precise assembly of each component, the function of continuously and stably outputting power to the cutting device is finally realized, ensuring that the blade 504 can carry out soil cutting and crushing operations efficiently.

[0042] The other end of the third rotating shaft 501 is tightly fitted with the active bevel teeth of the second bevel gear group 502, and the driven bevel teeth of the second bevel gear group 502 are correspondingly fitted with one end of the blade assembly rotating shaft 503. The two form a stable power transmission cooperation through bevel tooth meshing. The blade assembly rotating shaft 503 is installed as a whole at the front end of the chassis 2, and the blade 504 is firmly fixed at the lower end of the blade assembly rotating shaft 503. During operation, the third rotating shaft 501 drives the active bevel teeth of the second bevel gear group 502 to rotate synchronously. The active bevel teeth and the driven bevel teeth mesh and transmit power. With the help of the secondary bevel tooth reversing structure, the power transmission direction is precisely adjusted so that the power output angle matches the working angle of the blade 504. This makes the installation angle and cutting posture of the blade 504 more reasonable, and can fully fit the surface of the original soil. When the blade 504 rotates at high speed, it can efficiently break up large clods and impurities in the soil, avoiding the problem of insufficient cutting caused by power direction deviation. Ultimately, it improves the targeting and processing effect of the cutting operation, and lays a good foundation for the subsequent loosening operation of the rotary tillage component 306.

[0043] A horizontal drive cylinder 601 and a vertical drive cylinder 602 are fixedly mounted on the front of the chassis 2. The output end of the horizontal drive cylinder 601 is rigidly connected to one side of the movable plate 603, while the output end of the vertical drive cylinder 602 is correspondingly fixedly connected to the top of the movable plate 603, forming a dual-cylinder cooperative drive assembly structure for the movable plate 603. A mounting plate 604 is firmly fixed to the bottom of the movable plate 603, and a quick-release head 605 is mounted on the bottom of the mounting plate 604 to achieve detachable docking with external functional components. During operation, the horizontal drive cylinder 601 provides horizontal driving force, driving the movable plate 603 and the mounting plate 604 along... The horizontal movement is achieved by the vertical drive cylinder 602, which provides vertical driving force to move the moving plate 603 and the mounting plate 604 up and down in the height direction. Through the coordinated linkage of the two cylinders, the horizontal position and working height of the mounting plate 604 can be flexibly adjusted in multiple dimensions to accurately adapt to the differentiated needs of different crop planting row spacing and different working depths. The quick-release head 605 at the bottom of the mounting plate 604 adopts a convenient snap-fit ​​or locking structure, which can quickly complete the disassembly and replacement of external functional components without the need for professional tools, shortening the time cost of function switching and effectively improving the functional expansion efficiency of the chassis 2, allowing the equipment to flexibly adapt to various farmland operation scenarios. This quick-release head 605 adopts a mature snap-on quick-release structure, which is integrated into the bottom of the mounting plate 604. It mainly consists of a fixed base, a movable snap-on, a return spring, and an unlocking lever. When installing external functional components, align the connecting end of the component with the fixed base and press it down. The inclined surface of the connecting end squeezes the movable snap-on, causing it to retract inward. When the connecting end is in place, the return spring rebounds and pushes the movable snap-on into the matching slot of the connecting end, achieving quick locking. When disassembling, manually move the unlocking lever. The lever drives the movable snap-on to overcome the spring preload and retract inward, disengaging from the slot of the connecting end. The external functional component can then be directly removed without the need for any professional tools, meeting the needs of quickly switching functional components in agricultural operation scenarios.

[0044] All other parts of this utility model not described herein are the same as existing technologies, or are known technologies, or can be implemented using existing technologies, and will not be described in detail here.

[0045] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An adjustable multi-functional agricultural machinery chassis structure, characterized in that, It includes a chassis (2), a drive motor (202), a gearbox (203), a first rotating shaft (301), a second rotating shaft (401), a first transmission structure, a second transmission structure, a bevel gear reversing assembly, and a pushing device (6). The drive motor (202) and gearbox (203) are fixedly mounted on the chassis (2). The output end of the drive motor (202) is connected to the gearbox (203). The gearbox (203) synchronously drives the first rotating shaft (301) and the second rotating shaft (401) to rotate. The gearbox (203) is linked with the first rotating shaft (301), and transmits power through the first transmission structure to drive the rotary tillage assembly (306) to operate, thereby realizing the tillage and loosening of the soil, breaking the soil compaction state, and laying the foundation for subsequent operations. The gearbox (203) is linked with the second rotating shaft (401). The power transmission direction is adjusted by the bevel gear reversing component. The power is transmitted to the blade (504) in conjunction with the second transmission structure, which drives the blade (504) to rotate at high speed. The original soil is first cut and crushed, breaking up large clods of soil and impurities, clearing obstacles for subsequent operations. The pushing device (6) is installed on the chassis (2) and includes a horizontal drive cylinder (601), a vertical drive cylinder (602), a moving plate (603), a mounting plate (604), and a quick-release head (605). Through the coordinated linkage of the horizontal drive cylinder (601) and the vertical drive cylinder (602), the horizontal position and working height of the mounting plate (604) are adjusted to adapt to different working scenario requirements. The quick-release head (605) can be quickly disassembled to connect with external functional components, realizing diversified expansion and switching of working functions.

2. The adjustable multi-functional agricultural machinery chassis structure according to claim 1, characterized in that, The chassis (2) has a driver's cab (1) fixedly installed on top for controlling the overall operation of the equipment, and tires (201) for moving are symmetrically installed on both sides of the chassis (2).

3. The adjustable multi-functional agricultural machinery chassis structure according to claim 1, characterized in that, The gearbox (203) has two symmetrically distributed lateral output ends. The two lateral output ends are coaxially fixedly connected to one end of a first rotating shaft (301). Both ends of each first rotating shaft (301) are fixedly installed on the inner side wall of the chassis (2) through bearing seats.

4. The adjustable multi-functional agricultural machinery chassis structure according to claim 3, characterized in that, The first transmission structure includes a first driving wheel (302), a first synchronous belt (303), a first driven wheel (304), and a support base (305). The first driving wheel (302) is sleeved in the middle of the first rotating shaft (301). The support base (305) is fixed below the chassis (2). The first driven wheel (304) is rotatably mounted on the support base (305). The first driving wheel (302) and the first driven wheel (304) are driven by the first synchronous belt (303). The first driven wheel (304) is fixedly connected to the rotary tillage assembly (306). The rotary tillage assembly (306) is installed below the chassis (2) and located behind the blade (504).

5. The adjustable multi-functional agricultural machinery chassis structure according to claim 1, characterized in that, The gearbox (203) has an axial output end on the end face away from the drive motor (202). The axial output end is coaxially and fixedly connected to the active bevel teeth of the first bevel gear group (402). The driven bevel teeth of the first bevel gear group (402) are sleeved on the second rotating shaft (401). Both ends of the second rotating shaft (401) are fixedly installed on the inner side wall of the chassis (2) through bearing seats.

6. The adjustable multi-functional agricultural machinery chassis structure according to claim 1, characterized in that, The second transmission structure includes a second driving wheel (403), a second synchronous belt (404), a second driven wheel (405), and a third rotating shaft (501). The second driving wheel (403) is coaxially fixed with the driven bevel teeth of the first bevel gear group (402). The two ends of the third rotating shaft (501) are mounted on the inner side wall of the chassis (2) through bearing seats. The second driven wheel (405) is sleeved on one end of the third rotating shaft (501). The second synchronous belt (404) is sleeved between the second driving wheel (403) and the second driven wheel (405).

7. The adjustable multi-functional agricultural machinery chassis structure according to claim 6, characterized in that, The third rotating shaft (501) has an active bevel tooth of the second bevel gear group (502) sleeved at the other end. The driven bevel tooth of the second bevel gear group (502) is sleeved at one end of the tool group rotating shaft (503). The tool group rotating shaft (503) is installed at the front end of the chassis (2). The blade (504) is fixed at the lower end of the tool group rotating shaft (503).

8. The adjustable multi-functional agricultural machinery chassis structure according to claim 1, characterized in that, The horizontal drive cylinder (601) and the vertical drive cylinder (602) are fixed on the front of the chassis (2). The output end of the horizontal drive cylinder (601) is fixedly connected to one side of the moving plate (603), and the output end of the vertical drive cylinder (602) is fixedly connected to the top of the moving plate (603). The mounting plate (604) is fixed below the moving plate (603), and the quick-release head (605) is set at the bottom of the mounting plate (604).

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