Multifunctional range-extending type hybrid power remote control mini-tiller

Abstract

The invention discloses a multifunctional extended-range hybrid power remote control mini-tiller, which relates to the field of mini-tillers and comprises a mini-tiller main body, driving tracks are arranged at the bottoms of the front end and the rear end, a range extending device is arranged on the upper surface of the mini-tiller main body, and a main driving shaft is rotatably mounted at the bottom of one side of the mini-tiller main body; first transmission frames are arranged at the front end and the rear end of the main driving shaft and extend out of the mini-tiller body, and a soil retaining cover is arranged between the two first transmission frames and close to the edge. The ploughing and film covering functions are integrated, linkage is achieved through accurate clamping of the spline shaft and the spline hole, the winding roller is synchronously driven to release the soil covering film when the supporting shaft rotates, ploughing and film covering operation is conducted continuously, independent film covering equipment does not need to be additionally arranged, and manual follow-up supplementing and covering are not needed. The round baffles on the two sides of the winding roller can effectively prevent the soil covering film from deviating, it is guaranteed that the film is flat, operation interruption and repeated operation are avoided, and compared with the prior art, the agricultural production efficiency is improved.

Description

Technical Field

[0001] This invention relates to micro-tiller technology, specifically to a multi-functional range-extended hybrid remote-controlled micro-tiller. Background Technology

[0002] Remote-controlled micro-tillers are small, intelligent agricultural machines designed specifically for agricultural cultivation and horticultural management. Their core components consist of a remote control system, tillage actuators (such as rotary tillers and plow blades), and a power drive system. Through wireless remote control commands, they enable unmanned tillage, loosening, and soil breaking operations. Their compact size and flexible operation make them suitable for small plots of land, greenhouses, orchards, and mountainous terrain. They eliminate the need for close-range manual operation, effectively reducing the physical exertion required for agricultural work. They are a key piece of equipment for improving the convenience of agricultural production and adapting to small-scale planting scenarios.

[0003] Agricultural production is a multi-stage, interconnected system. Tillage is only the initial, basic step; subsequent steps include sowing, fertilizing, weeding, covering, and irrigation to complete the entire planting process. However, existing remote-controlled mini-tillers generally suffer from limited functionality. Their actuators and control systems are optimized only for tillage operations, with fixed structures and a lack of compatibility. They cannot quickly switch between various tools or respond to complex multi-step operation commands. This forces users to purchase additional independent equipment or manually complete subsequent processes after tillage, increasing equipment costs and requiring frequent transfers and adjustments of different devices, leading to workflow interruptions. The operation is cumbersome, time-consuming, and labor-intensive. This functional limitation makes existing remote-controlled mini-tillers unsuitable for the integrated needs of agricultural production, severely reducing the overall practicality and comprehensive efficiency of the equipment. Summary of the Invention

[0004] The purpose of this invention is to provide a multi-functional range-extended hybrid remote-controlled micro-tiller to solve the problems of existing remote-controlled micro-tillers having limited functions, only capable of tilling the land, and unable to perform subsequent supporting operations such as mulching, resulting in interruptions in agricultural production processes, cumbersome operation, and low practicality and efficiency.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a multi-functional range-extended hybrid remote-controlled micro-tiller, comprising a micro-tiller body, with drive tracks at both the front and rear bottom ends, a range extender device on the upper surface of the micro-tiller body, a main drive shaft rotatably mounted on one side bottom of the micro-tiller body, first transmission frames at both the front and rear ends of the main drive shaft extending to the outside of the micro-tiller body, a soil retainer between two first transmission frames near the edge, a support shaft rotatably mounted between two first transmission frames passing through the soil retainer, a plurality of rotary tillage blades fixed to the outer surface of the support shaft, and a transmission mechanism inside the first transmission frame for controlling the rotation of the plurality of rotary tillage blades;

[0006] The transmission mechanism includes a first pulley, which is located on both sides of the main drive shaft and the support shaft and extends into the interior of the first transmission frame. A first connecting belt is sleeved on the outer surface of the two first pulleys that are close to each other.

[0007] The support shaft is fixed to the outside of the first transmission frame by a spline shaft extending through the No. 1 pulley on both sides. The outer surface of the retaining cover is also provided with a covering device to protect the soil after tilling.

[0008] The film covering device includes a second transmission frame, which is disposed on one side of the outer surface of the first transmission frame. A connecting square shaft is rotatably mounted on the top of one side of the second transmission frame. A winding roller is sleeved on the outer surface of the connecting square shaft, and a soil covering film is wound on the outer surface of the winding roller.

[0009] The second transmission frame is also equipped with a linkage structure to control the connecting square shaft to rotate synchronously with the support shaft.

[0010] Furthermore, the linkage structure includes a second pulley, which is rotatably mounted at the bottom of the second transmission frame. A third pulley is installed on one side of the connecting square shaft extending to the top of the second transmission frame. A second connecting belt is fitted on the outer surface of both the second and third pulleys. A spline hole is provided through the middle of one side of the second pulley, passing through the second transmission frame.

[0011] Furthermore, the cross-sectional area of ​​one side of the spline shaft is smaller than the cross-sectional area of ​​the opening on one side of the spline hole, and one side of the spline shaft extends into the interior of the spline hole, with the spline shaft and the spline hole engaging with each other.

[0012] Furthermore, a fixing hole is provided through the middle of one side of the winding roller, and the connecting square shaft is located at the two sides of the fixing hole, and the connecting square shaft and the fixing hole are engaged with each other.

[0013] Furthermore, a connecting block is fixedly installed on the other side of the connecting square shaft, a connecting kit is sleeved on the outer surface of the connecting block, limit grooves are opened side by side on the upper surface of the connecting block, and limit bolts are threaded side by side on both sides of the upper surface of the connecting kit.

[0014] Furthermore, the outer diameter of the limiting bolt is smaller than the inner diameter of the limiting groove, one end of the limiting bolt extends into the inside of the limiting groove, and the limiting groove and the limiting bolt engage with each other.

[0015] Furthermore, a threaded hole is provided through the upper surface of the connecting kit at the position corresponding to the limiting groove, and one side of the outer surface of the limiting bolt is located in the threaded hole, and the limiting bolt and the threaded hole are coupled to each other.

[0016] Furthermore, the winding roller is located in the middle of the two second transmission frames, the overall length of the winding roller is less than the distance between the two second transmission frames, and a circular baffle is integrally formed on both sides of the winding roller.

[0017] Compared with the prior art, the multi-functional range-extended hybrid remote-controlled tiller provided by the present invention has the following beneficial effects:

[0018] 1. This invention integrates tillage and mulching functions, achieving linkage through the precise engagement of the spline shaft and spline hole. When the support shaft rotates, it synchronously drives the winding roller to release the mulch film, allowing tillage and mulching operations to proceed continuously without the need for additional independent mulching equipment or manual re-mulching. The circular baffles on both sides of the winding roller effectively prevent the mulch film from shifting, ensuring flat mulching and avoiding operation interruptions and repetitive operations, thus improving agricultural production efficiency compared to existing technologies.

[0019] 2. This invention features a quick-change structure consisting of a connecting block, connecting kit, and limiting bolts. Simply loosening the limiting bolts allows for rapid disassembly of the winding roller, enabling the replacement of suitable agricultural implements such as seeders and fertilizer applicators. The engaging structure between the limiting bolts and the limiting grooves ensures the tools are securely fixed after replacement, preventing any shaking during operation. This structure requires no additional auxiliary tools, making switching simple and quick. It breaks through the limitations of existing micro-tillers with their single-function design, adapting to the multi-stage needs of agricultural production from tillage and mulching to sowing and fertilization, further enhancing the overall practicality of the equipment.

[0020] 3. By equipping the device with a remote control system, the present invention allows workers to precisely control the movement direction, start and stop of operations, and mode switching of the equipment from a safe area using a remote control, eliminating the need for close-range manual operation and effectively reducing the labor intensity of field work. At the same time, the drive tracks adopt an anti-slip texture design, which can adapt to complex terrains such as narrow row spacing in greenhouses, mountain slopes, and muddy fields, ensuring that the equipment can move stably in different scenarios. Tillage and mulching operations are not limited by terrain, further improving the convenience of operation. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0022] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention;

[0023] Figure 2 This is a schematic diagram of the bottom structure of the main body of the micro-tiller provided in an embodiment of the present invention;

[0024] Figure 3 This is a schematic diagram of the connection kit structure provided in an embodiment of the present invention;

[0025] Figure 4 This is a schematic diagram of the cross-sectional structure of the connecting square shaft provided in an embodiment of the present invention;

[0026] Figure 5 This is a schematic diagram of the spline shaft structure provided in an embodiment of the present invention;

[0027] Figure 6 A schematic diagram of the first transmission frame structure provided in an embodiment of the present invention.

[0028] Explanation of reference numerals in the attached figures:

[0029] 1. Mini tiller body; 2. Drive track; 3. Range extender; 4. Main drive shaft; 5. First transmission frame; 6. Soil retainer; 7. Support shaft; 8. Rotary tiller blades; 9. First pulley; 10. First connecting belt; 11. Splined shaft; 12. Second transmission frame; 13. Second pulley; 14. Third pulley; 15. Second connecting belt; 16. Splined hole; 17. Connecting square shaft; 18. Winding roller; 19. Soil covering film; 20. Fixing hole; 21. Connecting block; 22. Limiting groove; 23. Connecting kit; 24. Limiting bolt. Detailed Implementation

[0030] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0031] As attached Figure 1 To be continued Figure 6 As shown:

[0032] Example 1:

[0033] This invention provides a multi-functional range-extended hybrid remote-controlled micro-tiller, including a micro-tiller body 1, with drive tracks 2 at both the front and rear bottom ends, a range extender 3 on the upper surface of the micro-tiller body 1, the core of the range extender 3 consisting of a small engine, generator, power battery pack and electronic control module, which cooperates with the drive of the micro-tiller body 1, a main drive shaft 4 rotatably mounted on one side bottom of the micro-tiller body 1, a first transmission frame 5 extending to the front and rear ends of the main drive shaft 4 to the outside of the micro-tiller body 1, a soil retainer 6 near the edge between two first transmission frames 5, a support shaft 7 rotatably mounted through the soil retainer 6 between two first transmission frames 5, a plurality of rotary tillage blades 8 fixed to the outer surface of the support shaft 7, and a transmission mechanism inside the first transmission frame 5 for controlling the rotation of the plurality of rotary tillage blades 8;

[0034] The transmission mechanism includes a first pulley 9, which is located on both sides of the main drive shaft 4 and the support shaft 7 and extends into the interior of the first transmission frame 5. A first connecting belt 10 is sleeved on the outer surface of the two first pulleys 9 that are close to each other.

[0035] The support shaft 7 extends through the No. 1 pulley 9 on both sides to the outside of the first transmission frame 5 and is fixed with a spline shaft 11. The outer surface of the retaining cover 6 is also equipped with a covering device to protect the soil after tilling.

[0036] The film covering device includes a second transmission frame 12, which is located on one side of the outer surface of the first transmission frame 5. A connecting square shaft 17 is rotatably mounted on the top of one side of the second transmission frame 12. A winding roller 18 is sleeved on the outer surface of the connecting square shaft 17, and a soil covering film 19 is rolled on the outer surface of the winding roller 18.

[0037] A fixing hole 20 is provided through the middle of one side of the winding roller 18, and a connecting square shaft 17 is located at the two sides of the fixing hole 20. The connecting square shaft 17 and the fixing hole 20 are engaged with each other.

[0038] The winding roller 18 is located in the middle of the two second transmission frames 12. The overall length of the winding roller 18 is less than the distance between the two second transmission frames 12. Circular baffles are integrally formed on both sides of the winding roller 18.

[0039] The second transmission frame 12 is also equipped with a linkage structure to control the connecting square shaft 17 to rotate synchronously with the support shaft 7.

[0040] Working principle: First, the staff completes the equipment inspection before operation, confirming that the range extender 3 has sufficient oil, the power battery pack has normal power, the drive track 2 is not damaged or deformed, the engine drives the generator to convert the chemical energy of fuel into electrical energy, the electronic control module coordinates the distribution of electrical energy in real time, and the electrical energy is given priority to the drive motor of the main body 1 of the micro tiller. The drive motor drives the main drive shaft 4 to rotate, and then drives the rotary tiller blades 8 to work through the transmission mechanism, while providing the driving track 2 with the power of movement. Excess electrical energy is stored in the power battery pack. When the working load increases (such as turning over compacted soil) or the engine is not started, the battery pack quickly replenishes the power to ensure continuous power. The rotary tiller blades 8 are firmly welded without loosening, the tension of the No. 1 connecting belt 10 is moderate, the soil covering film 19 on the winding roller 18 is neatly wound and undamaged, and the fixing hole 20 is engaged with the connecting square shaft 17.

[0041] Next, the staff transported the equipment to the target field and started the range extender 3 via remote control. The engine of the range extender 3 drove the generator to generate electricity to power the various components of the equipment. The staff controlled the drive track 2 to rotate via remote control, adjusted the direction of the equipment, and aligned the rotary tiller blades 8 with the soil area to be tilled, while ensuring that the winding roller 18 was aligned directly behind the tillage path.

[0042] Then, the staff started the tillage operation via remote control. The main drive shaft 4 rotated at a constant speed under the drive motor. The No. 1 pulleys 9 on both sides of the main drive shaft 4 rotated synchronously. The No. 1 connecting belt 10 drove the No. 1 pulley 9 on the support shaft 7 to rotate. The support shaft 7 rotated accordingly and drove the rotary tiller blades 8 to rotate at high speed. The rotary tiller blades 8 cut into the soil and turned over and broke up the compacted soil. The soil retaining cover 6 effectively prevented the soil turned over from splashing to both sides, avoiding soil contamination of the transmission mechanism inside the first transmission frame 5. At the same time, it prevented soil from splashing onto the subsequent covering film 19 and affecting the covering effect.

[0043] During the simultaneous tillage operation, the worker uses a linkage structure (detailed in subsequent embodiments) to make the connecting square shaft 17 rotate synchronously with the support shaft 7. The connecting square shaft 17 drives the winding roller 18 to rotate through the fixing hole 20. The soil covering film 19 on the winding roller 18 is released at a uniform speed, covering the soil surface after tillage. The circular baffles on both sides of the winding roller 18 are tightly attached to the edge of the soil covering film 19, effectively preventing the soil covering film 19 from shifting left and right during the release process, ensuring that the film is flat and wrinkle-free. The worker controls the equipment to maintain a uniform speed through a remote control, so that the tillage and film covering operations can be carried out continuously without interruption.

[0044] After the work is completed, the staff first stops the tillage and mulching operations using the remote control, then turns off the range extender 3 and controls the drive track 2 to move the equipment to the edge of the field. Then, they check the condition of each component of the equipment, clean the soil residue attached to the rotary tiller blades 8 and the winding roller 18. If the mulch film 19 is not used up, the winding roller 18 can be rotated in the opposite direction by connecting the square shaft 17 to rewind and store the remaining mulch film 19. Finally, the equipment is transported to the storage location.

[0045] Example 2:

[0046] This embodiment is basically the same as the previous embodiment, except that the linkage structure includes a second pulley 13, which is rotatably installed at the bottom of the second transmission frame 12. A third pulley 14 is installed on one side of the connecting square shaft 17 extending to the top of the second transmission frame 12. A second connecting belt 15 is fitted on the outer surface of both the second pulley 13 and the third pulley 14. A spline hole 16 is opened through the second transmission frame 12 on one side of the second pulley 13.

[0047] The cross-sectional area of ​​one side of the spline shaft 11 is smaller than the cross-sectional area of ​​the opening on one side of the spline hole 16. One side of the spline shaft 11 extends into the interior of the spline hole 16, and the spline shaft 11 and the spline hole 16 are engaged with each other.

[0048] Working principle: First, the staff completes the equipment inspection and preliminary preparation. If precise linkage between tillage and mulching is required, the second transmission frame 12 is fixed to the outer surface of the first transmission frame 5 with bolts. The spline shafts 11 extending from both sides of the support shaft 7 are aligned with the spline holes 16 of the second pulley 13. The second transmission frame 12 is slowly pushed so that the spline shafts 11 are inserted into the spline holes 16 and precisely engaged, ensuring that the power transmission is free from slippage.

[0049] Next, the staff activated the range extender 3 and used the remote control to move the equipment to the starting position of the operation. They adjusted the equipment's posture so that the rotary tiller blades 8 and the winding rollers 18 were aligned with the operation path. After the tillage operation was started, the main drive shaft 4 drove the support shaft 7 to rotate. The support shaft 7 synchronously drove the spline shaft 11 to rotate. The spline shaft 11 drove the second pulley 13 to rotate through the spline hole 16. The second pulley 13 transmitted power to the third pulley 14 through the second connecting belt 15. The third pulley 14 drove the connecting square shaft 17 to rotate at a constant speed.

[0050] Then, the connecting square shaft 17 engages with the winding roller 18 through the fixing hole 20, and the winding roller 18 rotates synchronously with the connecting square shaft 17. The soil covering film 19 is released at a uniform speed and covers the tilled soil. Since the spline shaft 11 and the support shaft 7 are integrally formed, and the transmission ratio of the second pulley 13 and the third pulley 14 is fixed, the rotation speed of the winding roller 18 is precisely matched with the rotation speed of the support shaft 7. This ensures that the release speed of the soil covering film 19 is fully adapted to the equipment travel speed and the soil tillage speed, avoiding the soil covering film 19 from being torn due to being too tight or wrinkled due to being too loose.

[0051] If the staff only needs to perform mulching operations (such as when the soil has been plowed in advance), the tillage mechanism can be turned off by remote control, leaving only the linkage structure running. At this time, the support shaft 7 does not drive the rotary tillage blades 8 to rotate, but only drives the linkage structure through the spline shaft 11. The rolling roller 18 releases the mulching film 19 normally, and the equipment moves along the plowed soil to complete the mulching operation.

[0052] After the operation is completed, the staff will turn off the equipment, loosen the fixing bolts of the second transmission frame 12, and remove the second transmission frame 12 from the first transmission frame 5, so that the spline shaft 11 is separated from the spline hole 16, making it easier for the equipment to be used for tilling or stored separately.

[0053] Example 3:

[0054] This embodiment is basically the same as the previous embodiment, except that a connecting block 21 is fixedly installed on the other side of the connecting square shaft 17, a connecting kit 23 is sleeved on the outer surface of the connecting block 21, a limit groove 22 is opened side by side on the upper surface of the connecting block 21, and a limit bolt 24 is threaded on both sides of the upper surface of the connecting kit 23.

[0055] The outer diameter of the limiting bolt 24 is smaller than the inner diameter of the limiting groove 22. One end of the limiting bolt 24 extends into the inside of the limiting groove 22, and the limiting groove 22 and the limiting bolt 24 are engaged with each other.

[0056] A threaded hole is provided on the upper surface of the connecting kit 23 at the position corresponding to the limiting groove 22. One side of the outer surface of the limiting bolt 24 is located in the threaded hole, and the limiting bolt 24 and the threaded hole are coupled to each other.

[0057] Working principle: First, when installing the film covering device, the staff will check the condition of the connecting block 21, the connecting kit 23 and the limit bolt 24 to confirm that the connecting block 21 is not deformed, the threaded hole of the connecting kit 23 is not blocked, and the limit bolt 24 rotates smoothly, so as to ensure that the connection of each component is reliable.

[0058] Next, the staff installed the two second transmission frames 12 on the outer surfaces of the two first transmission frames 5 respectively, so that the ends of the connecting square shafts 17 on both sides were aligned. Then, the connecting kit 23 was fitted onto the outer surface of the connecting block 21 of the two connecting square shafts 17. The position of the connecting kit 23 was adjusted so that the two threaded holes on the connecting kit 23 were precisely aligned with the limiting grooves 22 on the two connecting blocks 21, so that the connecting kit 23 could fit the two connecting blocks 21 at the same time.

[0059] Then, the workers align the limiting bolt 24 with the threaded hole and screw it in, so that one end of the limiting bolt 24 extends into the limiting groove 22 and is tightened. Through the locking action of the limiting bolt 24 and the limiting groove 22, the connecting kit 23 is firmly fixed to the outer surface of the two connecting blocks 21, thereby achieving mutual fixation of the two connecting square shafts 17. At this time, the second transmission frame 12 is stably fixed to the outer surface of the first transmission frame 5 under the support of the connecting square shafts 17, and the connecting square shafts 17 also remain horizontal and stable due to the fixation at both ends, providing reliable support for the winding roller 18 and the covering film 19.

[0060] If workers need to disassemble or replace the winding roller 18 and the soil covering film 19, or need to remove the film covering device to carry out tillage operations separately, they can first turn off the equipment and disconnect the power through the remote control, and then loosen the limiting bolt 24 on the connecting kit 23 by hand so that the limiting bolt 24 is completely removed from the limiting groove 22, thereby releasing the fixing restriction of the connecting kit 23 on the two connecting blocks 21.

[0061] Subsequently, the staff removes the connecting kit 23 from the outer surface of the connecting block 21, releasing the fixing relationship between the two connecting square shafts 17. This allows the second transmission frame 12, along with the connecting square shafts 17, to be removed from the outer surface of the first transmission frame 5, thus facilitating the removal of the winding roller 18 for replacement or maintenance. The entire disassembly and assembly process requires no additional tools, is simple and quick, and enables rapid separation and installation of the coating device from the main equipment, improving the convenience of equipment maintenance and component replacement.

[0062] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A multi-functional range-extended hybrid remote-controlled micro-tiller, comprising a micro-tiller body (1), with drive tracks (2) provided at both the front and rear bottom ends, and a range-extending device (3) provided on the upper surface of the micro-tiller body (1), characterized in that, The main drive shaft (4) is rotatably mounted on one side bottom of the main body (1) of the micro-tiller. The front and rear ends of the main drive shaft (4) are provided with first transmission frames (5) on both sides. A soil retainer (6) is provided between the two first transmission frames (5) near the edge. A support shaft (7) is rotatably mounted between the two first transmission frames (5) through the soil retainer (6). Several rotary tillage blades (8) are fixed to the outer surface of the support shaft (7). A transmission mechanism is provided inside the first transmission frame (5) to control the rotation of multiple rotary tillage blades (8). The transmission mechanism includes a first pulley (9), which is located on both sides of the main drive shaft (4) and the support shaft (7) and extends into the interior of the first transmission frame (5). A first connecting belt (10) is fitted on the outer surface of the two first pulleys (9) that are close to each other. The support shaft (7) extends through the first pulley (9) on both sides to the outside of the first transmission frame (5) and is fixed with a spline shaft (11). The outer surface of the retaining cover (6) is also provided with a covering device for protecting the soil after tilling. The film covering device includes a second transmission frame (12), which is located on one side of the outer surface of the first transmission frame (5). A connecting square shaft (17) is rotatably installed on the top of one side of the second transmission frame (12). A winding roller (18) is sleeved on the outer surface of the connecting square shaft (17), and a soil covering film (19) is rolled on the outer surface of the winding roller (18). The second transmission frame (12) is also equipped with a linkage structure to control the connecting square shaft (17) to rotate synchronously with the support shaft (7).

2. The multi-functional range-extended hybrid remote-controlled tiller according to claim 1, characterized in that, The linkage structure includes a second pulley (13), which is rotatably mounted at the bottom of the second transmission frame (12). A third pulley (14) is installed on one side of the connecting square shaft (17) extending to the top of the second transmission frame (12). A second connecting belt (15) is fitted on the outer surface of both the second pulley (13) and the third pulley (14). A spline hole (16) is provided through the middle of one side of the second pulley (13) through the second transmission frame (12).

3. The multi-functional range-extended hybrid remote-controlled tiller according to claim 2, characterized in that, The cross-sectional area of ​​one side of the spline shaft (11) is smaller than the cross-sectional area of ​​the opening on one side of the spline hole (16). One side of the spline shaft (11) extends into the interior of the spline hole (16), and the spline shaft (11) and the spline hole (16) engage with each other.

4. The multi-functional range-extended hybrid remote-controlled tiller according to claim 1, characterized in that, A fixing hole (20) is provided through the middle of one side of the winding roller (18), and the connecting square shaft (17) is located at the two sides of the fixing hole (20). The connecting square shaft (17) and the fixing hole (20) are engaged with each other.

5. The multi-functional range-extended hybrid remote-controlled tiller according to claim 1, characterized in that, A connecting block (21) is fixedly installed on the other side of the connecting square shaft (17). A connecting kit (23) is fitted on the outer surface of the connecting block (21). Limiting grooves (22) are opened side by side on the upper surface of the connecting block (21). Limiting bolts (24) are threaded on both sides of the upper surface of the connecting kit (23).

6. The multi-functional range-extended hybrid remote-controlled tiller according to claim 5, characterized in that, The outer diameter of the limiting bolt (24) is smaller than the inner diameter of the limiting groove (22). One end of the limiting bolt (24) extends into the limiting groove (22), and the limiting groove (22) and the limiting bolt (24) engage with each other.

7. The multi-functional range-extended hybrid remote-controlled tiller according to claim 5, characterized in that, The upper surface of the connecting kit (23) is provided with a threaded hole at the position corresponding to the limiting groove (22), and one side of the outer surface of the limiting bolt (24) is located in the threaded hole. The limiting bolt (24) and the threaded hole are coupled to each other.

8. The multi-functional range-extended hybrid remote-controlled tiller according to claim 1, characterized in that, The winding roller (18) is located in the middle of the two second transmission frames (12). The overall length of the winding roller (18) is less than the distance between the two second transmission frames (12). Both sides of the winding roller (18) are integrally formed with circular baffles.

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