Adjusting mechanism of self-propelled crawler-type rotary cultivator

Abstract

The utility model discloses an adjusting mechanism of a self-propelled crawler-type rotary cultivator, which comprises a rotary tillage frame, one side of the rotary tillage frame is provided with a mounting plate, one side of the mounting plate is provided with a fixing device, the fixing device comprises a fixing sleeve, a release sleeve, a fixing rod, a matching groove, a rotating shaft, a fixing block, a fixing groove and a release groove, the matching groove is arranged on the side wall of the fixing sleeve, and the rotating shaft is arranged on the side wall of the fixing sleeve. The fixing block is installed in the releasing groove through a rotating shaft, the fixing groove is formed in the outer side of the fixing rod, the releasing groove is formed in the releasing sleeve, a reinforcing mechanism is arranged on the outer side of the fixing sleeve, and the reinforcing mechanism comprises a return stroke groove, a connecting plate, a cylindrical block, a sliding block, a connecting block, a sliding sleeve, a clamping plate, a connecting spring, a return stroke block, a return stroke plate and a return stroke spring. According to the rotary tillage tool, the connecting springs are connected with the two adjacent sliding blocks, the three clamping plates are connected to one side of the sliding sleeve through the connecting plates, the return springs are connected with the return blocks and the connecting blocks, and the problems that in the prior art, replacement of the rotary tillage tool and the mounting shaft is tedious, and the design structure is unstable due to rapid replacement are solved.

Description

Technical Field

[0001] This utility model relates to the technical field of adjustment mechanisms for self-propelled tracked rotary tillers, and more specifically, to an adjustment mechanism for a self-propelled tracked rotary tiller. Background Technology

[0002] In the process of modern agricultural mechanization, self-propelled tracked rotary tillers have become an indispensable core tillage equipment in modern agricultural production due to their excellent passability, strong adaptability and minimal soil disturbance. However, the rotary tillage blade system, as the core working component of the rotary tiller, faces many technical challenges in practical applications.

[0003] In existing self-propelled tracked rotary tiller adjustment mechanisms, to adapt to varying soil conditions in different regions, seasons, and for different crops, operators typically need to adjust tillage performance by changing the rotary tillage blades of different shapes, angles, and sizes. For example, sharp straight blades are used for cutting in highly clayey soils; curved blades are used in sandy soils to reduce resistance and energy consumption; and reinforced wear-resistant blades are used to extend service life in mountainous soils containing many stones. Furthermore, to achieve precise control over tillage depth and soil turning uniformity, different sizes of mounting shafts are also required. Adjusting the installation spacing and arrangement of rotary tillers is a common practice, but these seemingly simple adjustments present significant challenges in practice. The installation and disassembly of traditional rotary tillers and mounting shafts are extremely complex and cumbersome, typically requiring the use of various specialized tools such as wrenches, sockets, and specialized disassembly and assembly tools. Operators are also required to follow a strict disassembly and assembly sequence. In many cases, agricultural machinery operators have to resort to extreme methods such as hammering or levering to forcibly disassemble the machinery. This not only greatly prolongs the preparation time for operation but also frequently leads to damage to connecting parts or even the scrapping of the entire component, and may even result in serious mechanical failures, significantly reducing agricultural production efficiency and economic benefits.

[0004] Secondly, with the development of agricultural equipment manufacturing technology, some equipment manufacturers have indeed developed rotary tillers and mounting shaft devices with quick-change functions to address the above-mentioned problems, attempting to simplify the replacement process through innovative connection mechanisms. However, these so-called "convenient designs" have revealed serious structural instability issues in actual agricultural production environments. Because self-propelled tracked rotary tillers generate strong vibrations, impacts, and torque changes during operation, especially when encountering obstacles such as stones and tree roots in the soil, the simple connection structure is prone to loosening and deformation under such high-intensity, high-frequency dynamic loads. More seriously, once the connection structure becomes loose, it will not only lead to uneven tillage depth and reduced work quality, but may also cause equipment shutdown and work interruption. In addition, the loosening of the rotary tillers will also exacerbate abnormal wear of the equipment, significantly shorten the overall service life of the rotary tiller, and increase the equipment maintenance and replacement costs for farmers. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides an adjustment mechanism for a self-propelled tracked rotary tiller to solve the technical problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution: an adjustment mechanism for a self-propelled tracked rotary tiller, comprising a rotary tiller frame, a mounting plate detachably provided on one side of the rotary tiller frame, and a fixing device mounted on one side of the mounting plate. The fixing device includes a fixing sleeve, a release sleeve, a fixing rod, a mating groove, a rotating shaft, a fixing block, a fixing groove, and a release groove. The fixing sleeve is detachably fitted onto the outside of the fixing rod, the release sleeve is rotatably mounted on the outside of the fixing sleeve, the mating groove is formed on the side wall of the fixing sleeve, the rotating shaft is mounted in the release groove, the fixing block is movably mounted in the release groove via the rotating shaft, and the fixing block is engaged in the fixing groove. The fixing groove is formed on the outside of the fixing rod, and the release groove is formed in the release sleeve. The fixed sleeve is provided with a reinforcing mechanism on its outer side. The reinforcing mechanism includes a return groove, a connecting plate, a cylindrical block, a slider, a connecting block, a sliding sleeve, a retaining plate, a connecting spring, a return block, a return plate, and a return spring. The return groove is formed on the return plate. The two ends of the connecting spring are respectively connected to two adjacent sliders. The three retaining plates are connected to one side of the sliding sleeve through the connecting plate. Multiple cylindrical blocks are fixedly installed on the outer side of the fixed sleeve. Multiple sliders are movably arranged on one side of the release sleeve. The two ends of the return spring are respectively connected to the return block and the connecting block. The connecting block is fixedly installed on the outer side of the fixed sleeve. The sliding sleeve is arranged on the outer side of the fixed sleeve. The return block is fixedly installed on one side of the return plate. The return plate is rotatably installed on the outer side of the fixed sleeve.

[0009] The present invention is further configured such that a protective cover is detachably provided on the outside of the rotary tiller, a motor is detachably provided on the rotary tiller, a sprocket is rotatably provided on one side of the rotary tiller, a chain is sleeved on the outside of the sprocket, and the output end of the motor is connected to one of the sprockets.

[0010] The present invention is further configured such that a mounting shaft is rotatably provided in the rotary tiller, and a plurality of rotary tillage blades are detachably provided on the outside of the mounting shaft. One end of the mounting shaft is inserted into the mounting plate, and the other end of the mounting shaft passes through the side wall of the rotary tiller and enters a sprocket. A tangential key is detachably provided in the sprocket, and the tangential key is respectively engaged with the inner side of the sprocket and one end of the mounting shaft.

[0011] The present invention is further configured such that a guide block is fixedly provided on the inner side of the sliding sleeve, and a guide groove is provided on the outer side of the fixed sleeve, and the guide block is slidably disposed in the guide groove.

[0012] The present invention is further configured such that a return rod is connected to one side of the return block, a return hole is opened in the connecting block, and one end of the return rod slides into the return hole.

[0013] The present invention is further configured such that a roller is rotatably provided on one side of the slider, the roller is engaged between two fixed blocks, multiple slide rails are fixedly provided on one side of the release sleeve, and a slide groove is provided in the slider, the slide groove is adapted to the slide rail, and the precise displacement of the slider is ensured.

[0014] The present invention is further configured such that a thrust bearing is detachably provided on one side of the return plate, a top spring is connected to one end of the thrust bearing, and the other end of the top spring is connected to the sliding sleeve, thereby realizing the automatic reset of the sliding sleeve.

[0015] The present invention is further configured such that a plurality of springs are movably provided in the release groove, the springs are connected to one side of the fixed block, and the other end of the springs abuts against the inner wall of the release groove. The arrangement of the springs ensures the precise movement of the fixed block.

[0016] (III) Beneficial Effects

[0017] Compared with the prior art, this utility model provides an adjustment mechanism for a self-propelled tracked rotary tiller, which has the following beneficial effects:

[0018] 1. The overall design adopts a modular approach, cleverly combining the rotary tiller frame, mounting plate, motor, sprocket, chain, mounting shaft, rotary tiller blades, and tangential key to form a highly efficient and practical agricultural tillage system. This overall structural design provides a foundation for solving the problem of frequent blade replacement required by traditional rotary tillers. In particular, the use of a detachable mounting plate and tangential key locking method allows the rotary tiller blades and mounting shaft to be disassembled as a whole or replaced individually, greatly simplifying the adjustment process in agricultural operations. The motor provides stable power to the rotary tiller blades through the sprocket and chain transmission system, while the protective cover design effectively ensures operational safety.

[0019] 2. The fixing device cleverly utilizes the precise fit of the fixing sleeve, release sleeve, fixing rod, mating groove, rotating shaft, fixing block, fixing groove, and release groove to solve the core problem of cumbersome disassembly and assembly of rotary tillers' rotary blades and mounting shafts in traditional rotary tillers. This device adopts a unique quick disassembly and assembly mechanism. This ingenious design completely eliminates the tedious steps of using multiple professional tools when replacing parts in traditional rotary tillers. It allows an ordinary agricultural machinery operator to independently complete the replacement of rotary blades or mounting shafts in a short time without professional skills. This not only greatly shortens the equipment adjustment time and improves the efficiency of agricultural time utilization, but also reduces the risk of component damage caused by improper operation, thereby reducing maintenance costs, extending equipment service life, and providing more flexible, efficient, and economical technical support for agricultural production.

[0020] 3. The reinforcement mechanism, through the precise cooperation of the return groove, connecting plate, cylindrical block, slider, connecting block, sliding sleeve, clamping plate, connecting spring, return block, return plate, and return spring, solves the key technical problem of insufficient structural stability in existing quick-change devices. This mechanism is designed with a multi-locking system, which can maintain structural stability even in high-intensity vibration environments. The design of the return block, return rod, and return spring allows the system to be quickly unlocked when needed. This multi-locking mechanism can maintain excellent structural stability even under the strong vibration and impact conditions generated by the high-speed rotation of the rotary tiller, completely solving the safety hazards of easy loosening and detachment of traditional quick-change devices. Due to the high stability of the structure, the service life of the whole machine is significantly extended, and the risk of mechanical failure and safety accidents caused by loose parts is also eliminated, providing agricultural production with a truly efficient rotary tillage solution that combines convenience and reliability. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of the adjustment mechanism of a self-propelled tracked rotary tiller according to the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the present invention with the protective cover removed;

[0023] Figure 3This is a schematic diagram of the dispersed structure of the fixing device and the reinforcement mechanism in this utility model;

[0024] Figure 4 This is a schematic diagram showing the dispersed cross-sectional structure of the fixing device and the reinforcing mechanism in this utility model.

[0025] Figure 5 This is a cross-sectional structural diagram of the fixing device and the reinforcing mechanism in this utility model.

[0026] In the diagram: 1. Rotary tiller; 2. Mounting plate; 3. Fixing sleeve; 4. Release sleeve; 5. Fixing rod; 6. Mating groove; 7. Rotary shaft; 8. Fixing block; 9. Fixing groove; 10. Release groove; 11. Return groove; 12. Connecting plate; 13. Columnar block; 14. Slider; 15. Connecting block; 16. Sliding sleeve; 17. Clamping plate; 18. Connecting spring; 19. Return block; 20. Return plate; 21. Return spring; 22. Protective cover; 23. Motor; 24. Sprocket; 25. Chain; 26. Mounting shaft; 27. Rotary tiller blade; 28. Tangential key; 29. ​​Guide block; 30. Guide groove; 31. Return rod; 32. Return hole; 33. Roller; 34. Slide rail; 35. Slide groove; 36. Thrust bearing; 37. Top spring; 38. Spring. Detailed Implementation

[0027] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0028] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0029] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0030] Please see Figures 1-5An adjustment mechanism for a self-propelled tracked rotary tiller includes a rotary tiller frame 1. A mounting plate 2 is detachably mounted on one side of the rotary tiller frame 1. A fixing device is mounted on one side of the mounting plate 2. The fixing device includes a fixing sleeve 3, a release sleeve 4, a fixing rod 5, a mating groove 6, a rotating shaft 7, a fixing block 8, a fixing groove 9, and a release groove 10. The fixing sleeve 3 is detachably fitted onto the outside of the fixing rod 5. The release sleeve 4 is rotatably mounted on the outside of the fixing sleeve 3. The mating groove 6 is formed on the side wall of the fixing sleeve 3. The rotating shaft 7 is installed in the release groove 10. The fixing block 8 is movably mounted in the release groove 10 via the rotating shaft 7, and the fixing block 8 is engaged in the fixing groove 9. The fixing groove 9 is formed on the outside of the fixing rod 5. The release groove 10 is formed in the release sleeve 4. A reinforcing mechanism is provided on the outside of the fixing sleeve 3, and the reinforcing mechanism includes a return groove. 11. Connecting plate 12, cylindrical block 13, slider 14, connecting block 15, sliding sleeve 16, clamping plate 17, connecting spring 18, return block 19, return plate 20 and return spring 21. The return groove 11 is opened on the return plate 20. The two ends of the connecting spring 18 are respectively connected to two adjacent sliders 14. Three clamping plates 17 are connected to one side of the sliding sleeve 16 through the connecting plate 12. Multiple cylindrical blocks 13 are fixedly installed on the outside of the fixed sleeve 3. Multiple sliders 14 are movably arranged on one side of the release sleeve 4. The two ends of the return spring 21 are respectively connected to the return block 19 and the connecting block 15. The connecting block 15 is fixedly installed on the outside of the fixed sleeve 3. The sliding sleeve 16 is arranged on the outside of the fixed sleeve 3. The return block 19 is fixedly installed on one side of the return plate 20. The return plate 20 is rotatably installed on the outside of the fixed sleeve 3.

[0031] The rotary tiller 1 is detachably equipped with a protective cover 22 on its outer side. The rotary tiller 1 is also detachably equipped with a motor 23. A sprocket 24 is rotatably mounted on one side of the rotary tiller 1. A chain 25 is fitted on the outer side of the sprocket 24. The output end of the motor 23 is connected to one of the sprockets 24.

[0032] The rotary tiller 1 is equipped with a rotating mounting shaft 26. Multiple rotary tillage blades 27 are detachably mounted on the outside of the mounting shaft 26. One end of the mounting shaft 26 is inserted into the mounting plate 2, and the other end of the mounting shaft 26 passes through the side wall of the rotary tiller 1 and enters a sprocket 24. A tangential key 28 is detachably mounted in the sprocket 24. The tangential key 28 is respectively engaged with the inner side of the sprocket 24 and one end of the mounting shaft 26.

[0033] In this embodiment, when needed, the equipment is moved as a whole by a self-propelled tracked device, and then the motor 23 is turned on. The motor 23 drives the sprocket 24 connected to the output end to rotate in the forward direction through the tangential key 28. Then, the sprocket 24 drives another sprocket 24 to rotate through the chain 25 sleeved on the outside. Then, the sprocket 24 drives the mounting shaft 26 to rotate through the tangential key 28 set on the inside, so that the mounting shaft 26 drives multiple rotary tillage blades 27 to rotate in the rotary tillage frame 1, thereby realizing the rotary tillage of crops.

[0034] Please see Figures 3-5As a further implementation of the overall equipment: a guide block 29 is fixedly provided on the inner side of the sliding sleeve 16, and a guide groove 30 is provided on the outer side of the fixed sleeve 3, with the guide block 29 slidably disposed in the guide groove 30.

[0035] A return rod 31 is connected to one side of the return block 19, and a return hole 32 is opened in the connecting block 15. One end of the return rod 31 is slidably inserted into the return hole 32.

[0036] A roller 33 is provided on one side of the slider 14, and the roller 33 is inserted between two fixed blocks 8. Multiple slide rails 34 are fixed on one side of the release sleeve 4. A slide groove 35 is provided in the slider 14, and the slide groove 35 is adapted to the slide rail 34.

[0037] A thrust bearing 36 is detachably provided on one side of the return plate 20. One end of the thrust bearing 36 is connected to a top spring 37, and the other end of the top spring 37 is connected to the sliding sleeve 16.

[0038] Multiple springs 38 are movably installed in the release groove 10. The springs 38 are connected to one side of the fixed block 8, and the other end of the springs 38 abuts against the inner wall of the release groove 10.

[0039] More specifically, when the rotary tiller blades 27 and mounting shaft 26 need to be replaced, firstly, rotate the return plate 20 in the forward direction, causing the return plate 20 to drive the return groove 11 and the thrust bearing 36 mounted on one side to rotate in the forward direction. The return plate 20 will also drive the return block 19 mounted on one side to rotate. Then, the return block 19 will drive the return rod 31 set on one side to slide along the return hole 32 opened in the connecting block 15. The return block 19 will cooperate with the connecting block 15 to compress the return spring 21. When the return spring 21 is compressed to its limit, the return groove 11 will just rotate to the position corresponding to the clamping plate 17. Then, push the sliding sleeve 16, causing the sliding sleeve 16 to drive the guide block 29 to slide along the guide groove 30. The sliding sleeve 16 will also drive the connecting plate 12 and the clamping plate 17 to gradually enter the return groove 11. Simultaneously, the sliding sleeve 16 and the thrust bearing 36 cooperate to compress the top spring 37. When the top spring 37 is compressed to its limit, the clamping plate 17 closest to the sliding sleeve 16 passes through the return groove 11 and moves to the other side of the return plate 20. Then, the return plate 20 is released, and the return spring 21 pushes the return block 19 to rotate and reset. Then, the return block 19 drives the return rod 31 to rotate and reset along the return hole 32. The return block 19 also drives the thrust bearing 36 to rotate and reset through the return plate 20. At the same time, the return plate 20 will drive the return groove 11 to rotate to a position that does not correspond to the clamping plate 17. At this time, the connecting plate 12 and the clamping plate 17 closest to the sliding sleeve 16 cooperate to limit the sliding sleeve 16 to one side of the return plate 20, so that the sliding sleeve 16 no longer limits the roller 33. Then, it rotates forward to release. Release sleeve 4, via multiple slide rails 34 and slide grooves 35 on one side, drives multiple sliders 14 and rollers 33 to rotate, causing the rollers 33 to roll out between two cylindrical blocks 13. The rollers 33 then drive the sliders 14 to slide outwards along the slide rails 34 and slide grooves 35, and the sliders 14 stretch the connecting spring 18. Simultaneously, release sleeve 4 causes the release groove 10 on its inner side to rotate in the forward direction. Then, via rotating shaft 7, it drives the fixing block 8 to rotate, causing one side of the inner wall of the mating groove 6 to press against the other side of the fixing block 8. This causes the fixing block 8 to rotate along rotating shaft 7 and enter the release groove 10, pressing against the spring 38. The fixing block 8 then moves out of the fixing groove 9. Finally, the fixing sleeve 3 and fixing rod 5 are pulled to both sides, thus achieving the desired effect. Remove the fixed rod 5, and then remove the other fixed sleeves 3 and fixed rods 5 according to the above steps. Then remove the mounting plate 2, and then remove the mounting shaft 26 together with the rotary tiller blades 27, so that the other end of the mounting shaft 26 is pulled out of the sprocket 24. Then the rotary tiller blades 27 can be removed and replaced separately, or the mounting shaft 26 can be directly replaced with a specification of different spacing. After replacement, insert the side of the mounting shaft 26 with the keyway into the sprocket 24, and make the tangential key 28 in the sprocket 24 engage with the keyway at one end of the mounting shaft 26. Then reinstall the mounting plate 2 on the outside of the rotary tiller frame 1, and make the other end of the mounting shaft 26 rotate and insert into the mounting plate 2. Then make the fixed rod 5 pass through the rotary tiller frame 1 and the mounting plate 2 from the inside.Then, the fixing sleeve 3 is fitted from the outside of the mounting plate 2 to the outside of the fixing rod 5. Then, the release sleeve 4 is rotated in the opposite direction, causing the release sleeve 4 to drive the release groove 10 on the inner side to rotate in the opposite direction. Then, the release groove 10 drives the fixing block 8 to move in the opposite direction through the rotating shaft 7. Then, one side of the inner wall of the mating groove 6 gradually stops limiting one side of the fixing block 8. Then, the spring 38 pushes the fixing block 8, causing the fixing block 8 to gradually rotate and reset along the rotating shaft 7, so that the fixing block 8 passes through the mating groove 6 and is inserted into the fixing groove 9. At this time, the slide rail 34 and the slide groove 35 drive the slider 14 and the roller 33. Rotate to the original position between the two cylindrical blocks 13, then the connecting spring 18 resets and pulls the slider 14 to slide inward along the slide rail 34 and the slide groove 35, so that the slider 14 drives the pulley to re-engage between the two cylindrical blocks 13. Then rotate the return plate 20 forward again, so that the return plate 20 drives the return groove 11 to rotate forward, and the return plate 20 drives the thrust bearing 36 installed on one side and the return block 19 installed on the other side to rotate forward again. Then the return block 19 drives the return rod 31 to slide forward along the return hole 32 again. The return spring 21 is compressed in conjunction with the connecting block 15. When the return groove 11 rotates again to the position corresponding to the clamping plate 17, the top spring 37 pushes the sliding sleeve 16 to drive the guide block 29 to slide and reset along the guide groove 30. The sliding sleeve 16 drives the three clamping plates 17 to slide and reset through the connecting plate 12. When the top spring 37 is fully reset, the other two clamping plates 17 move to the sides of the return plate 20 respectively. Then the return plate 20 is released again, so that the return spring 21 pushes the return block 19 again to drive the return rod 31 to rotate and reset along the return hole 32. The return block 19 then drives the return plate 21 to rotate and reset along the return hole 32. The return plate 20 rotates and resets, causing the return plate 20 to drive the thrust bearing 36 and the return groove 11 to rotate and reset again. This causes the return groove 11 to rotate again to a position not corresponding to the clamping plate 17. Then, the connecting plate 12, in conjunction with the two clamping plates 17, limits and supports the sliding sleeve 16 to one side of the return plate 20. This causes the inner wall of the sliding sleeve 16 to again limit the outer wall of the roller 33, preventing the roller 33 and the slider 14 from sliding outwards. This achieves rotational limitation of the release sleeve 4, ensuring the stability of the release sleeve 4, thereby ensuring the stability of the installation structure and the stable use of the rotary tiller 27.

[0040] In summary, when the equipment is in use or running: when needed, the equipment is moved by a self-propelled tracked device, and then the motor 23 is turned on. The motor 23 drives the sprocket 24 connected to the output end to rotate in the forward direction through the tangential key 28. Then, the sprocket 24 drives another sprocket 24 to rotate through the chain 25 sleeved on the outside. Then, the sprocket 24 drives the mounting shaft 26 to rotate through the tangential key 28 set on the inside, and the mounting shaft 26 drives multiple rotary tillage blades 27 to rotate in the rotary tillage frame 1 to achieve rotary tillage of crops.

[0041] When the rotary tiller blades 27 and mounting shaft 26 need to be replaced, first rotate the return plate 20 forward, causing the return plate 20 to drive the return groove 11 and the thrust bearing 36 mounted on one side to rotate forward. The return plate 20 will also drive the return block 19 mounted on one side to rotate. Then, the return block 19 will drive the return rod 31 set on one side to slide along the return hole 32 opened in the connecting block 15. The return block 19 will cooperate with the connecting block 15 to compress the return spring 21. When the return spring 21 is compressed to its limit, the return groove 11 will just rotate to the position corresponding to the clamping plate 17. Then, push the sliding sleeve 16, causing the sliding sleeve 16 to drive the guide block 29 to slide along the guide groove 30. The sliding sleeve 16 will also drive the connecting plate 12 and the clamping plate 17 to gradually enter the return groove 11. At the same time, the sliding sleeve 16 and the thrust bearing 36 will rotate forward. The bearing 36 engages with the top spring 37. When the top spring 37 is compressed to its limit, the clamping plate 17 closest to the sliding sleeve 16 passes through the return groove 11 and moves to the other side of the return plate 20. Then, the return plate 20 is released, and the return spring 21 pushes the return block 19 to rotate and reset. Then, the return block 19 drives the return rod 31 to rotate and reset along the return hole 32. The return block 19 also drives the thrust bearing 36 to rotate and reset via the return plate 20. At the same time, the return plate 20 will drive the return groove 11 to rotate to a position that does not correspond to the clamping plate 17. At this time, the connecting plate 12 and the clamping plate 17 closest to the sliding sleeve 16 cooperate to limit the sliding sleeve 16 to one side of the return plate 20, so that the sliding sleeve 16 no longer limits the roller 33. Then, the release sleeve 4 is rotated in the forward direction. The release sleeve 4 passes through the side set with Multiple slide rails 34, in conjunction with slide grooves 35, drive multiple sliders 14 and rollers 33 to rotate, causing the rollers 33 to roll out between two cylindrical blocks 13. The rollers 33 then drive the sliders 14 to slide outwards along the slide rails 34 and slide grooves 35, while the sliders 14 stretch the connecting spring 18. Simultaneously, the release sleeve 4 drives the inner release groove 10 to rotate forward, then drives the fixing block 8 to rotate via the rotating shaft 7. This causes one side of the inner wall of the mating groove 6 to press against the other side of the fixing block 8, causing the fixing block 8 to rotate along the rotating shaft 7 into the release groove 10 and press against the spring 38. The fixing block 8 then moves out of the fixing groove 9. The fixing sleeve 3 and fixing rod 5 are then pulled to both sides to remove them. The same steps are then applied to other fixing components. Remove the fixed sleeve 3 and the fixing rod 5, then remove the mounting plate 2, and then remove the mounting shaft 26 along with the rotary tiller 27, so that the other end of the mounting shaft 26 is pulled out of the sprocket 24. Then the rotary tiller 27 can be removed and replaced separately, or the mounting shaft 26 can be directly replaced with a specification of different spacing. After replacement, insert the side of the mounting shaft 26 with the keyway into the sprocket 24, and make the tangential key 28 in the sprocket 24 engage with the keyway at one end of the mounting shaft 26. Then reinstall the mounting plate 2 on the outside of the rotary tiller 1, and rotate the other end of the mounting shaft 26 into the mounting plate 2. Then pass the fixing rod 5 through the rotary tiller 1 and the mounting plate 2 from the inside, and then fit the fixing sleeve 3 from the outside of the mounting plate 2 onto the outside of the fixing rod 5.Then, the release sleeve 4 is rotated in the opposite direction, causing the release groove 10 on its inner side to rotate in the opposite direction. The release groove 10 then drives the fixed block 8 to move in the opposite direction via the rotating shaft 7. Gradually, one side of the inner wall of the mating groove 6 no longer limits the movement of the fixed block 8. Then, the spring 38 pushes the fixed block 8, causing it to gradually rotate and reset along the rotating shaft 7, allowing the fixed block 8 to pass through the mating groove 6 and engage in the fixed groove 9. At this point, the slide rail 34, in conjunction with the slide groove 35, drives the slider 14 and roller 33 to rotate between the two original cylindrical blocks 13. The connecting spring 18 resets and pulls the slider 14 to slide inward along the slide rail 34 and the slide groove 35, causing the slider 14 to drive the pulley to re-engage between the two cylindrical blocks 13. Then, the return plate 20 rotates forward again, causing the return plate 20 to drive the return groove 11 to rotate forward, and causing the return plate 20 to drive the thrust bearing 36 installed on one side and the return block 19 installed on the other side to rotate forward again. Then, the return block 19 drives the return rod 31 to slide forward along the return hole 32. Then, the return block 19 and the connecting block 15 cooperate again to engage the return spring. 21. When the return groove 11 rotates to the position corresponding to the clamping plate 17 again, the top spring 37 pushes the sliding sleeve 16 to drive the guide block 29 to slide and reset along the guide groove 30. The sliding sleeve 16 drives the three clamping plates 17 to slide and reset through the connecting plate 12. When the top spring 37 is fully reset, the other two clamping plates just move to the two sides of the return plate 20 respectively. Then the return plate 20 is released again, so that the return spring 21 pushes the return block 19 to drive the return rod 31 to rotate and reset along the return hole 32. The return block 19 then drives the return plate 20 to rotate again. The reset process causes the return plate 20 to rotate and reset, driving the thrust bearing 36 and return groove 11 to rotate back to a position that does not correspond to the clamping plate 17. Then, the connecting plate 12, in conjunction with the two clamping plates 17, limits and supports the sliding sleeve 16 to one side of the return plate 20. This causes the inner wall of the sliding sleeve 16 to again limit the outer wall of the roller 33, preventing the roller 33 and the slider 14 from sliding outward. This achieves rotational limitation of the release sleeve 4, ensuring the stability of the release sleeve 4, thereby ensuring the stability of the installation structure and the stable use of the rotary tiller 27.

[0042] Of all the solutions mentioned above, those involving the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although embodiments of this utility model 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 this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

Claims

1. An adjustment mechanism for a self-propelled tracked rotary tiller, comprising a rotary tiller frame (1), wherein a mounting plate (2) is provided on one side of the rotary tiller frame (1), characterized in that: A fixing device is installed on one side of the mounting plate (2). The fixing device includes a fixing sleeve (3), a release sleeve (4), a fixing rod (5), a mating groove (6), a rotating shaft (7), a fixing block (8), a fixing groove (9), and a release groove (10). The mating groove (6) is opened on the side wall of the fixing sleeve (3). The rotating shaft (7) is installed in the release groove (10). The fixing block (8) is installed in the release groove (10) through the rotating shaft (7). The fixing groove (9) is opened on the outside of the fixing rod (5). The release groove (10) is opened in the release sleeve (4). A reinforcing mechanism is provided on the outside of the fixing sleeve (3). The reinforcing mechanism includes a return groove (11) and a connecting... Plate (12), cylindrical block (13), slider (14), connecting block (15), sliding sleeve (16), clamping plate (17), connecting spring (18), return block (19), return plate (20) and return spring (21), return groove (11) is opened on return plate (20), connecting spring (18) is connected to two adjacent sliders (14), three clamping plates (17) are connected to one side of sliding sleeve (16) through connecting plate (12), multiple cylindrical blocks (13) are installed on the outside of fixed sleeve (3), return spring (21) is connected to return block (19) and connecting block (15), and return plate (20) is installed on the outside of fixed sleeve (3).

2. The adjusting mechanism of a self-propelled tracked rotary tiller according to claim 1, characterized in that: The rotary tiller (1) is detachably equipped with a protective cover (22) on the outside. The rotary tiller (1) is detachably equipped with a motor (23). A sprocket (24) is rotatably equipped on one side of the rotary tiller (1). A chain (25) is sleeved on the outside of the sprocket (24). The output end of the motor (23) is connected to one of the sprockets (24).

3. The adjusting mechanism of a self-propelled tracked rotary tiller according to claim 2, characterized in that: The rotary tiller (1) is provided with a rotating mounting shaft (26). Multiple rotary tillage blades (27) are detachably provided on the outside of the mounting shaft (26). One end of the mounting shaft (26) is inserted into the mounting plate (2), and the other end of the mounting shaft (26) passes through the side wall of the rotary tiller (1) and enters a sprocket (24). A tangential key (28) is detachably provided in the sprocket (24). The tangential key (28) is respectively inserted into the inside of the sprocket (24) and one end of the mounting shaft (26).

4. The adjusting mechanism of a self-propelled tracked rotary tiller according to any one of claims 1-3, characterized in that: The inner side of the sliding sleeve (16) is fixedly provided with a guide block (29), and the outer side of the fixed sleeve (3) is provided with a guide groove (30). The guide block (29) is slidably disposed in the guide groove (30).

5. The adjusting mechanism of a self-propelled tracked rotary tiller according to claim 4, characterized in that: A return rod (31) is connected to one side of the return block (19), and a return hole (32) is opened in the connecting block (15). One end of the return rod (31) slides into the return hole (32).

6. The adjusting mechanism of a self-propelled tracked rotary tiller according to claim 5, characterized in that: The slider (14) has a rotatable roller (33) on one side, which is engaged between two fixed blocks (8). The release sleeve (4) has multiple slide rails (34) fixed on one side. The slider (14) has a slide groove (35) that is adapted to the slide rail (34).

7. The adjusting mechanism of a self-propelled tracked rotary tiller according to claim 6, characterized in that: A thrust bearing (36) is detachably provided on one side of the return plate (20). One end of the thrust bearing (36) is connected to a top spring (37), and the other end of the top spring (37) is connected to a sliding sleeve (16).

8. The adjusting mechanism of a self-propelled tracked rotary tiller according to claim 1, characterized in that: Multiple springs (38) are movably provided in the release groove (10). The springs (38) are connected to one side of the fixed block (8), and the other end of the springs (38) abuts against the inner wall of the release groove (10).

Images