Straw cleaning no-tillage device and ploughing method

Abstract

The invention relates to the technical field of agricultural equipment, in particular to a straw cleaning no-tillage device and a ploughing method.The straw cleaning no-tillage device comprises a rack, the left end of the rack is pulled by agricultural equipment, and the straw cleaning no-tillage device further comprises a cutting knife, an elastic shifting wheel, a ploughing component, a connecting frame, a profiling component, a feedback disc, a feedback component, a trigger rod, a soft soil marking component and a hard soil avoiding component. Through the cutting knife, the plowing component, the elastic shifting wheel and the profiling component, the cutting knife and the elastic shifting wheel can be subjected to synchronous profiling during plowing, the plowing depth is guaranteed, through the arrangement of the elastic shifting wheel, a trigger rod and a feedback component, the elastic shifting wheel can be matched with a hard soil avoiding component to enable the elastic shifting wheel to be lifted up during plowing when the elastic shifting wheel encounters a land with the hard geology, and the plowing depth is guaranteed. When soft soil is encountered, a soft soil marking component can be matched for marking, so that distinguishing is facilitated, subsequent manual intervention improvement is facilitated, and the crop yield is further increased.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural equipment, in particular to a straw cleaning and no-tillage device. BACKGROUND

[0002] With the development of modern agricultural technology, straw cleaning and no-tillage devices have been widely used in conservation tillage. The device can directly till and sow soil while retaining straw cover on the ground, effectively reducing soil erosion, improving water use efficiency, and reducing operating costs. Currently, the straw cleaning and no-tillage devices on the market mainly include disc type, shovel type and rotary tillage type, and the core function is to break straw and loosen soil through mechanical components to create good conditions for subsequent sowing.

[0003] However, the existing straw cleaning and no-tillage devices still have some problems in actual operation, especially in the case of complex soil texture. Due to the influence of soil texture, straw cover amount and ground relief, the device is prone to uneven tillage depth during operation. If the tillage depth is too deep, it will cause delayed emergence, weak seedlings and increased risk of rotten seeds. Conversely, if the tillage depth is too shallow, it will cause a significant increase in the probability of lodging, dry sprouts or damage by birds and animals. Secondly, during the tillage process, when encountering hard or loose soil, the existing straw cleaning and no-tillage device often directly tills through a rigid method, which cannot distinguish between hard or loose soil and cannot facilitate subsequent targeted improvement of the soil, thereby affecting the emergence rate and yield of crops.

[0004] While some contouring tillage machines are now available on the market, such as Patent No. CN113785672B, a responsive, speed-increasing, push-and-throw inter-row straw clearing device suitable for no-till seeding applications, which automatically contours vertically based on its own gravity and can adjust the height of the tilling components according to the undulations of the ground, these devices still have significant limitations when working with plots of land with large variations in soil hardness. For example, the straw clearing blades of most current devices utilize an integrated, fixed structure and lack adaptive adjustment capabilities. When encountering hard soil or rocks, the blades may collide with the ground, causing wear or even damage, impacting operational efficiency. Furthermore, the integrated blades struggle to precisely control the cutting height, potentially leaving some straw stalks too long. These excessively long stalks can easily become entangled in the rotary blade shaft of the tillage and preparation device during subsequent tillage operations, increasing power consumption and potentially clogging the machine, affecting tillage uniformity. Furthermore, when encountering areas of excessively hard or loose soil, the contouring mechanism often fails to make targeted adjustments and instead plows through, resulting in uneven tillage quality. In contrast, traditional manual tillage allows for flexible adjustment of tillage intensity and depth based on soil conditions, such as increasing plowing frequency in hard areas or improving loose areas with composting or appropriate compaction to ensure uniform soil conditions. However, existing mechanical, rigid tillage methods are unable to differentiate between complex and uneven soil textures, resulting in an inability to make targeted improvements to the land. This leads to uneven tillage quality, which in turn affects seed root development and water and fertilizer absorption, ultimately reducing crop yields.

[0005] Therefore, a straw-clearing no-tillage device and a land cultivation method are proposed. Summary of the Invention

[0006] The purpose of the present invention is to provide a straw-clearing and no-tillage device and a tillage method, in order to solve the problem in the prior art that when the land is relatively complex in texture, the existing straw-clearing and no-tillage device lacks an integrated device that can profile, cut, and clear straw and cultivate the land, and the rigid tillage method cannot make a distinction when encountering land that may affect crop yields, and cannot facilitate subsequent improvements, thereby affecting crop yields.

[0007] To achieve the above object, the present invention provides the following technical solutions:

[0008] The device comprises a frame, a cutting knife, an elastic propeller, a ploughing component, a connecting frame, a profiling component, a feedback disc, a feedback component, a trigger rod, a soft soil marking component and a hard soil avoiding component. The cutting knife is connected with the frame through the profiling component, which is used to profile cut the straw growing on different ground levels. The connecting frame is connected with the right end of the profiling component. The elastic propeller is connected with the right end of the connecting frame through the ploughing component, which is used to eradicate the cut straw and plough the land together with the profiling component. The feedback disc is connected with the elastic propeller. The trigger rod is slidingly connected between the elastic propeller and the ploughing component. The feedback component is arranged on the side of the feedback disc close to the ploughing component, which is used to move the trigger rod to the side close to or away from the elastic propeller when the feedback disc and the elastic propeller rotate relatively. The soft soil marking component is arranged on the connecting frame, which is used to mark the land below together with the cutting knife when the trigger rod moves to the side close to the elastic propeller. The hard soil avoiding component is arranged between the ploughing component and the connecting frame, which is used to move the elastic propeller upward above the land when the trigger rod moves to the side away from the elastic propeller.

[0009] In the above scheme, when the elastic propeller ploughs the ground and encounters a certain resistance, the propeller teeth can be deformed appropriately, on the one hand to prevent the propeller teeth from being damaged when ploughing hard soil or stones, and on the other hand to use the deformation degree of the propeller teeth to feedback the force when ploughing.

[0010] Preferably, the profiling component comprises a profiling limiting cylinder, a profiling slide rod, a profiling elastic member, a base frame and a universal wheel. The profiling limiting cylinder is fixed to the left end of the frame. The profiling slide rod is slidingly connected with the profiling limiting cylinder. The base frame is connected with the lower end of the profiling slide rod. The profiling elastic member is sleeved on the profiling slide rod and connected between the profiling limiting cylinder and the base frame. The universal wheel is connected with the lower end of the base frame. The connecting frame is fixedly connected with the right end of the profiling slide rod.

[0011] In the above scheme, the profiling elastic member is used to apply a downward force to the base frame, so that the base frame and other components can always be attached to the ground surface under the action of gravity even when encountering low-lying land. When encountering a local raised land section, the base frame will move upward relative to the frame under the limitation of the profiling limiting cylinder and the profiling slide rod when the profiling component at the corresponding position moves to the raised land section, thereby pressing the profiling elastic member between the base frame and the profiling sleeve.

[0012] Preferably, the cutting knife includes a movable knife, a connecting rod and a driving rod. The movable knife is slidably connected to the upper end of the base frame through an I-shaped slot and a card block. The connecting rod is fixed on the movable knife. The driving rod is slidably connected in the frame. A connecting hole is provided on the driving rod. The connecting rod is slidably connected to the driving rod through the connecting hole. The driving rod is driven by a reciprocating telescopic motor. A blade that cooperates with the movable knife is provided at the left end of the base frame.

[0013] Preferably, the connecting frame is also provided with an anti-blocking unit for isolating the elastic thumbwheel and the cutting knife, the anti-blocking unit includes an anti-blocking groove, an anti-blocking rod, an anti-blocking baffle, an anti-blocking elastic part, an anti-blocking chamfer and an anti-blocking piece, the anti-blocking groove is opened in the connecting frame, the anti-blocking rod is slidably connected in the anti-blocking groove, the anti-blocking baffle is fixedly connected to the anti-blocking rod, the left and right ends of the anti-blocking elastic part are respectively abutted against the right end of the anti-blocking baffle and the inner wall of the connecting frame, the two ends of the anti-blocking piece are respectively rotatably connected to the lower end of the anti-blocking baffle and the right end of the base frame, the anti-blocking chamfer is arranged at the left end of the anti-blocking rod, and the anti-blocking chamfer cooperates with the driving rod.

[0014] When the cam is in motion, the cam is in a position to move forward and backward, and the cam is in a position to move the cam forward and backward, and the cam is in a position to move the cam forward and backward, and the cam is in a position to move the cam forward and backward, and the cam is in a position to move the cam forward and backward, and the cam is in a position to move the cam forward and backward, and the cam is in a position to move the cam forward and backward, and the cam is in a position to move the cam forward and backward, and the cam is in a position to move the cam forward and backward, and the cam is in a position to move the cam

[0015] Preferably, the arable land components include a driving motor, an arable land vertical rod, an arable land elastic member, an arable land baffle and an arable land cross bar. The right end of the connecting frame is fixedly connected to an upper support platform and a lower support platform. The arable land vertical rod is slidably connected to the upper support platform and the lower support platform. The driving motor is fixed on the arable land vertical rod. The arable land baffle is fixedly connected to the middle part of the arable land vertical rod, and its lower end is abutted against the lower support platform. The two ends of the arable land elastic member are respectively abutted against the upper end of the arable land baffle and the lower end of the upper support platform. The arable land cross bar is fixedly connected to the side of the lower end of the arable land vertical rod. The elastic thumbwheel is rotatably connected to the end of the arable land cross bar away from the arable land vertical rod, and the elastic thumbwheel cooperates with the ground.

[0016] Preferably, the feedback component includes a feedback shell, a feedback column, a feedback groove, a feedback cylinder, a feedback pin and a trigger unit. The feedback shell is fixedly connected to the side of the elastic dial wheel close to the vertical rod of the cultivated land, the feedback disk is rotatably connected in the feedback shell, and a plurality of fixed claws are fixedly connected to the feedback disk, each of the fixed claws is connected to the elastic dial tooth at the corresponding position, the feedback column is fixedly connected to the side of the feedback disk close to the vertical rod of the cultivated land, the feedback groove is provided on the feedback column, the feedback cylinder is slidably connected to one end of the feedback shell close to the vertical rod of the cultivated land through a spline, the feedback pin is fixedly connected in the feedback cylinder, the feedback pin cooperates with the feedback groove, and the trigger unit is arranged on the side of the feedback cylinder close to the vertical rod of the cultivated land, which is used to drive the trigger rod to move when the feedback cylinder moves.

[0017] In the above scheme, when the elastic dial rotates forwardly under the drive of the driving motor to plow the land, the elastic dial will drive the feedback disk to rotate forward synchronously. When the teeth of the elastic dial are subject to a certain resistance, the teeth will be deformed to a certain extent. At this time, the teeth will drive the feedback disk to rotate in the opposite direction relative to the elastic dial, and then the feedback disk will drive the feedback column to rotate in the opposite direction relative to the feedback shell and the feedback cylinder, so that the feedback cylinder moves away from the elastic dial under the cooperation of the feedback pin and the feedback groove, and the limitation of the spline of the feedback cylinder and the feedback disk; similarly, when the resistance of the teeth of the elastic dial becomes smaller after deformation, the feedback disk will rotate forward relative to the elastic dial, so that the feedback cylinder moves toward the side close to the elastic dial.

[0018] Preferably, the trigger unit includes a trigger frame, a trigger slide rod, a trigger ring and a trigger turntable, the trigger frame is fixedly connected to the tillage cross bar, the trigger slide rod is slidably connected to the trigger frame, the trigger ring is fixedly connected to the side of the trigger slide rod close to the elastic dial, the trigger turntable is rotatably connected to the side of the trigger ring close to the elastic dial, the trigger turntable is abutted against the feedback tube, and the trigger rod is arranged on the side of the trigger slide rod away from the elastic dial.

[0019] Preferably, the soft soil marking component includes a marking pump housing, a marking pressure plate, a marking elastic member and a marking chamfer. The marking pump housing is fixedly connected to the lower support platform. The lower end of the marking pump housing is provided with a pressure discharge port, and the upper end of the marking pump housing is provided with a pressure replenishing port. The marking pressure plate is slidably connected to the left end of the marking pump housing. The left and right ends of the marking elastic member are respectively connected to the marking pressure plate and the marking pump housing. The marking chamfer is opened at the position corresponding to the trigger rod at the left end of the marking pressure plate. The marking chamfer cooperates with the end of the trigger rod away from the elastic dial wheel, and the marking pressure plate cooperates with the right end of the anti-blocking rod.

[0020] In the above scheme, when the trigger rod is located in front of the mark pressure plate, the anti-blocking rod can contact the mark pressure plate when it moves to the right, and push the mark pressure plate to the right for a distance. When the trigger rod approaches the mark pressure plate, the trigger rod will gradually fit into the mark chamfer and push the mark pressure plate to the right along the mark chamfer until the trigger rod is completely moved to the left end of the mark pressure plate. At this time, the anti-blocking rod cannot touch the mark pressure plate when it moves to the right.

[0021] Preferably, the hard soil avoidance component includes an avoidance frame and an avoidance guide groove, the avoidance frame is arranged at the position corresponding to the trigger rod at the right end of the marking pump housing, the avoidance guide groove is opened on the avoidance frame, and the avoidance guide groove cooperates with the end of the trigger rod away from the elastic dial wheel.

[0022] In the above scheme, when the trigger rod is completely moved to the left end of the marking pressure plate, when the resistance encountered by the teeth of the elastic thumbwheel becomes further increased, the trigger rod will move further away from the elastic thumbwheel, and the trigger rod will fit into the avoidance guide groove after moving a certain distance, and move the trigger rod upward along the avoidance guide groove, thereby causing the trigger rod to drive the cultivated land component and the elastic thumbwheel to move upward relative to the connecting frame as a whole, causing the cultivated land baffle of the cultivated land component to move upward and squeeze the cultivated land elastic component.

[0023] A method for cultivating land, comprising the straw clearing and no-tillage device described in any one of the above, further comprising the following steps:

[0024] The straw is cut and tilled by setting a cutting knife and a tillage part;

[0025] By setting the profiling component and the connecting frame, the cutter and the tillage component can synchro-profiling during operation;

[0026] By setting an elastic thumbwheel, the elastic thumbwheel can be deformed according to the hardness of the soil during tillage;

[0027] By setting a trigger rod and a feedback component, the elastic thumbwheel drives the trigger rod to move when it is deformed;

[0028] By setting a soft soil marking component, when the trigger rod moves toward the side close to the elastic thumbwheel, the cutting knife will mark the land below;

[0029] By arranging the hard soil avoidance component, when the trigger rod moves to the side away from the elastic thumbwheel, the elastic thumbwheel is driven to move upward to above the ground.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] Through the cutting knife, tillage parts, elastic dial and profiling parts, the cutting knife and the elastic dial can synchronously follow the shape during tillage to ensure the tillage depth. By setting the elastic dial, trigger rod and feedback parts, when the elastic dial encounters hard soil during tillage, it can cooperate with the hard soil avoidance part to lift the elastic dial, and when encountering soft soil, it can cooperate with the soft soil marking part to mark it, which is convenient for distinction and subsequent manual intervention and improvement, thereby increasing crop yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the present invention;

[0033] Figure 2 It is a schematic cross-sectional structure diagram of the profiling component of the present invention;

[0034] Figure 3 For the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0035] Figure 4 This is a schematic structural diagram of the cultivated land component of the present invention;

[0036] Figure 5 This is a schematic diagram of the exploded structure of the feedback component of the present invention;

[0037] Figure 6 For the present invention Figure 5 The enlarged structural diagram at B in the middle;

[0038] Figure 7 It is a schematic diagram of the overall rear structure of the present invention;

[0039] Figure 8 Schematic diagram of the cross-sectional structure of the trigger rod of the present invention;

[0040] Figure 9 This is a schematic structural diagram of the soft soil marking component of the present invention;

[0041] Figure 10 This is a structural diagram of the hard soil avoidance component of the present invention;

[0042] Figure 11 It is a schematic cross-sectional structure diagram of the hard soil avoidance component of the present invention.

[0043] In the figure: 1, frame; 2, cutting knife; 3, elastic dial; 4, tillage part; 5, connecting frame; 6, profiling part; 7, feedback plate; 8, feedback part; 9, trigger lever; 10, soft soil marking part; 11, hard soil avoidance part; 61, profiling limit cylinder; 62, profiling slide bar; 63, profiling elastic part; 64, chassis; 65, universal wheel; 21, movable knife; 22, connecting rod; 23, driving rod; 51, anti-blocking groove; 52, anti-blocking rod; 53, anti-blocking baffle; 54, anti-blocking elastic part; 55, anti-blocking chamfer; 56, anti-blocking sheet; 41, driving motor; 42, tillage Vertical rod; 43, cultivated land spring; 44, cultivated land baffle; 45, cultivated land horizontal rod; 46, upper support platform; 47, lower support platform; 81, feedback shell; 82, feedback column; 83, feedback groove; 84, feedback cylinder; 85, feedback pin; 86, trigger unit; 71, fixed claw; 861, trigger frame; 862, trigger slide; 863, trigger ring; 864, trigger turntable; 101, mark pump shell; 102, mark pressure plate; 103, mark spring; 104, mark chamfer; 105, pressure outlet; 106, pressure replenishment port; 111, avoidance frame; 112, avoidance guide groove. DETAILED DESCRIPTION

[0044] To clearly and completely describe the technical solutions in the embodiments of the present invention and to make the features and advantages more obvious and easy to understand, the specific embodiments of the present invention are described in detail below in conjunction with the drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0045] Example 1

[0046] See also Figures 1 to 7The present invention provides a straw clearing and no-tillage device, including a frame 1, the left end of the frame 1 is pulled by the farming equipment, including a cutter 2, an elastic dial 3, a tillage component 4, a connecting frame 5, a profiling component 6, a feedback disk 7, a feedback component 8, a trigger rod 9, a soft soil marking component 10 and a hard soil avoidance component 11, the cutter 2 is connected to the frame 1 through the profiling component 6, the profiling component 6 is used to drive the cutter 2 to perform profiling cutting on straw growing at different ground heights, the connecting frame 5 is connected to the right end of the profiling component 6, the elastic dial 3 is connected to the right end of the connecting frame 5 through the tillage component 4, the tillage component 4 drives the elastic dial 3 to eradicate the cut straw, and cooperates with the profiling component 6 to till the land The feedback disk 7 is connected to the elastic dial 3, the trigger rod 9 is slidably connected between the elastic dial 3 and the cultivated land component 4, and the feedback component 8 is arranged on the side of the feedback disk 7 close to the cultivated land component 4. When the feedback disk 7 and the elastic dial 3 rotate relative to each other, the trigger rod 9 drives the trigger rod 9 to move closer to or away from the elastic dial 3. The soft soil marking component 10 is arranged on the connecting frame 5. When the trigger rod 9 moves toward the side close to the elastic dial 3, the cutter 2 is used to mark the land below. The hard soil avoidance component 11 is arranged between the cultivated land component 4 and the connecting frame 5. When the trigger rod 9 moves away from the elastic dial 3, the elastic dial 3 is driven to move upward to above the land.

[0047] See also Figure 5 Specifically, the root of the teeth of the elastic dial 3 is spring-shaped. The purpose of this design is that when the elastic dial 3 is plowing and clearing the ground, the teeth of the elastic dial 3 can be deformed appropriately when encountering a certain resistance. On the one hand, it prevents the teeth from being damaged when encountering hard soil or stones when plowing the land. On the other hand, the degree of deformation of the teeth of the elastic dial 3 can be used to feedback the force of the elastic dial 3 when plowing the land.

[0048] See also Figures 1 to 2 Specifically, the profiling component 6 includes a profiling limit cylinder 61, a profiling slide bar 62, a profiling elastic member 63, a base frame 64 and a universal wheel 65. The profiling limit cylinder 61 is fixed to the lower side of the left end of the frame 1, the profiling slide bar 62 is slidably connected to the profiling limit cylinder 61, the base frame 64 is connected to the lower end of the profiling slide bar 62, the profiling elastic member 63 is sleeved on the profiling slide bar 62, and is connected between the profiling limit cylinder 61 and the base frame 64, the universal wheel 65 is connected to the lower end of the base frame 64, and the connecting frame 5 is fixedly connected to the right end of the profiling slide bar 62.

[0049] See also Figure 2Specifically, the profiling elastic member 63 is used to apply a downward force to the base frame 64. The base frame 64 and other components are combined under the action of gravity, so that even when encountering a low-lying area of ​​the land, the universal wheel 65 at the lower end of the base frame 64 can always maintain contact with the ground surface; when encountering a partially raised area of ​​the land, when the profiling member 6 at the corresponding position moves to the raised area, the base frame 64 will also move upward relative to the frame 1 under the limit of the profiling limit cylinder 61 and the profiling slide bar 62, thereby squeezing the profiling elastic member 63 between the base frame 64 and the profiling sleeve.

[0050] See also Figure 2 Specifically, the cutting knife 2 includes a movable knife 21, a connecting rod 22 and a driving rod 23. The movable knife 21 is slidably connected to the upper end of the base frame 64 through an I-shaped slot and a card block. The connecting rod 22 is fixed on the movable knife 21. The driving rod 23 is slidably connected to the frame 1. A connecting hole is provided on the driving rod 23. The connecting rod 22 is slidably connected to the driving rod 23 through the connecting hole. The driving rod 23 is driven by a reciprocating telescopic motor. A blade that cooperates with the movable knife 21 is provided at the left end of the base frame 64.

[0051] See also Figure 7 Specifically, in order to enable the frame 1 to better follow the shape when being pulled by agricultural machinery to clear straw and cultivate land, the lower end of the frame 1 can be provided with multiple groups of elastic dial wheels 3, cultivated land parts 4, connecting frames 5, profiling parts 6, feedback disks 7, feedback parts 8, trigger rods 9, soft soil marking parts 10 and hard soil avoidance parts 11. The movable blades 21 and connecting rods 22 are also provided with multiple groups accordingly. The multiple groups of movable blades 21 and connecting rods 22 are driven by only one group of driving rods 23 and reciprocating telescopic motors. It is only necessary to set corresponding connecting holes at the corresponding positions of the multiple groups of connecting rods 22 on the driving rods 23. The driving rod 23 is driven by the reciprocating telescopic motor to slide back and forth in the frame 1. The reciprocating telescopic motor is drawn in the figure. The reciprocating telescopic motor can choose a linear motor and be installed at the front end or rear end of the frame 1. It is only necessary to connect the output shaft of the reciprocating telescopic motor to the front end or rear end of the driving rod 23, and drive the driving rod 23 to move back and forth at a high frequency during operation.

[0052] See also Figures 2 to 4Specifically, the connecting frame 5 is also provided with an anti-blocking unit for isolating the elastic dial wheel 3 and the cutting knife 2. The anti-blocking unit includes an anti-blocking groove 51, an anti-blocking rod 52, an anti-blocking baffle 53, an anti-blocking elastic member 54, an anti-blocking chamfer 55 and an anti-blocking piece 56. The anti-blocking groove 51 is opened in the connecting frame 5, the anti-blocking rod 52 is slidably connected to the anti-blocking groove 51, the anti-blocking baffle 53 is fixedly connected to the anti-blocking rod 52, and the left and right ends of the anti-blocking elastic member 54 are respectively connected to the right end of the anti-blocking baffle 53 and the connecting frame 5 inner wall abuts, and the two ends of the anti-blocking piece 56 are respectively rotatably connected with the lower end of the anti-blocking baffle 53 and the right end of the bottom frame 64. The anti-blocking piece 56 is an elastic baffle with a certain deformation ability, and can also be composed of two sleeves that can be slidably connected to each other. It is only necessary to ensure that when the anti-blocking baffle 53 moves, the upper end of the anti-blocking piece 56 can move with the anti-blocking baffle 53, while the lower end can remain rotatably connected to the bottom frame 64. The anti-blocking chamfer 55 is set at the left end of the anti-blocking rod 52. When the cutting knife 2 is working, the reciprocating telescopic motor drives the driving rod 23 to move forward and backward, and the driving rod 23 drives the connecting rod 22 and the movable knife 21 to move forward and backward. In the process of the connecting rod 22 moving forward or backward, the connecting rod 22 will first contact the anti-blocking chamfer 55 at the front end or rear end of the anti-blocking rod 52 and push the anti-blocking rod 52 to the right along the anti-blocking chamfer 55, thereby driving the anti-blocking baffle 53 to move right and squeeze the anti-blocking elastic member 54 until the connecting rod 22 is completely moved to the other side of the anti-blocking rod 52, and the anti-blocking rod 52 will be reset under the action of the anti-blocking elastic member 54; in the process of the anti-blocking baffle 53 moving, the upper end of the anti-blocking plate 56 will be driven to move at the same time, and the lower end of the anti-blocking plate 56 is rotatably connected to the base frame 64, so that the anti-blocking baffle 53 can drive the anti-blocking plate 56 to shake slightly when moving, thereby preventing too much foreign matter from accumulating between the anti-blocking plate 56 and the elastic dial wheel 3 due to the close distance.

[0053] See also Figures 2 to 4 Specifically, the function of setting the anti-blocking unit between the plucking wheel and the cutting knife 2 is that, in this application, the universal wheel 65 and the profiling spring 63 are installed on the chassis 64 of the cutting knife 2, and the profiling is performed by the cutting knife 2, while the elastic plucking wheel 3 is connected to the cutting knife 2 through the connecting frame 5 for synchronous profiling. Therefore, in order to ensure the profiling accuracy of the elastic plucking wheel 3 as much as possible, the distance between the cutting knife 2 and the elastic plucking wheel 3 will be reduced. In order to prevent the distance between the cutting knife 2 and the elastic plucking wheel 3 from being reduced, This results in the risk that when the elastic dial wheel 3 is clearing the roots of straw and plowing the land, the elastic dial wheel 3 will plow out soil, gravel or straw fragments and fall onto the cutter 2. The present application provides an anti-blocking unit between the elastic dial wheel and the cutter 2, so that the anti-blocking piece 56 isolates the cutter 2 from the elastic dial wheel 3, so that the elastic dial wheel 3 will not throw soil, gravel, and straw fragments onto the cutter 2 when plowing the land, and also prevent the straw cut by the cutter 2 from falling onto the elastic dial wheel 3, which will put the elastic dial wheel 3 at risk of being entangled.

[0054] See also Figures 4 to 7Specifically, the cultivated land component 4 includes a driving motor 41, a cultivated land vertical rod 42, a cultivated land elastic piece 43, a cultivated land baffle 44 and a cultivated land cross bar 45. The right end of the connecting frame 5 is fixedly connected to an upper support platform 46 and a lower support platform 47. The cultivated land vertical rod 42 is slidably connected to the upper support platform 46 and the lower support platform 47. The driving motor 41 is fixed on the cultivated land vertical rod 42. The driving motor 41 can drive the elastic dial wheel 3 to rotate. This part is the existing technology, so it will not be introduced in detail. The cultivated land baffle 44 is fixedly connected to the middle part of the cultivated land vertical rod 42, and its lower end is abutted against the lower support platform 47. The two ends of the cultivated land elastic piece 43 are respectively abutted against the cultivated land The upper end of the ground baffle 44 and the lower end of the upper support platform 46 are abutted, and the cultivated land elastic part 43 has sufficient elasticity to provide a certain downward elastic force to the cultivated land baffle 44, and combined with the gravity of the cultivated land component 4 itself, the elastic dial 3 can be smoothly inserted into the ground during normal operation, and the cultivated land cross bar 45 is fixedly connected to the side of the lower end of the cultivated land vertical bar 42, and the elastic dial 3 is rotatably connected to the end of the cultivated land cross bar 45 away from the cultivated land vertical bar 42. The elastic dial 3 cooperates with the ground. When in working state, when the universal wheel 65 of the cutter 2 contacts the ground, the elastic dial 3 can also plow into the ground to cultivate the ground.

[0055] Specifically, a lifting device can also be provided on the frame 1, which is not shown in the figure. The lifting device can lift the multiple groups of connecting frames 5 when the straw cleaning and no-tillage device of this application does not need to cultivate the land, and then lift the universal wheel 65 and the elastic dial wheel 3 of the cutter 2 upward to separate them from the ground. When the land needs to be cultivated, the connecting frame 5 can be lowered.

[0056] Working principle: When no-till operation is required, it is only necessary to fix the left end of the frame 1 on the agricultural machine, and the agricultural machine drives the frame 1 to move to the left as a whole. During operation, the universal wheel 65 of the cutter 2 is in contact with the ground. When encountering a low-lying area of ​​the land, the universal wheel 65 at the lower end of the base frame 64 can always keep in contact with the ground surface; when encountering a partially raised area of ​​the land, when the profiling component 6 at the corresponding position moves to the raised area, the base frame 64 will also move upward relative to the frame 1 under the limit of the profiling limit cylinder 61 and the profiling slide bar 62, thereby squeezing the profiling elastic member 63 between the base frame 64 and the profiling sleeve. The elastic dial 3 is connected to the tillage component 4 through the connecting frame 5 and the connecting rod 22 on the base frame 64, thereby realizing the synchronous profiling of the elastic dial 3 and the cutting knife 2, so that the straw clearing and no-tillage device of the present application can not only perform profiling cutting on the straw on the field when the geological conditions of the land are relatively complex, ensure the uniformity of the cutting length of the straw, prevent the cutting knife 2 from bumping or failing to effectively cut the straw due to the undulating terrain, so that the remaining straw is too long and increases the risk of winding around the elastic dial 3, but also enable the elastic dial 3 to perform synchronous profiling to clean the cut straw and cultivate the land, ensure the uniformity of the depth of the cultivated land, prevent the subsequent seed sowing from being too deep or too shallow, and greatly improve the quality of farming.

[0057] Example 2

[0058] Please refer to Figures 5 to 11 , the device also comprises a feedback component 8, the feedback component 8 comprises a feedback shell 81, a feedback column 82, a feedback groove 83, a feedback cylinder 84, a feedback pin 85 and a trigger unit 86, the feedback shell 81 is fixedly connected on the side of the elastic driving wheel 3 close to the ploughing vertical rod 42, the feedback disc 7 is rotatably connected in the feedback shell 81, a plurality of fixed claws 71 are fixedly connected on the feedback disc 7, each fixed claw 71 is connected with the elastic driving tooth at the corresponding position, the feedback column 82 is fixedly connected on the side of the feedback disc 7 close to the ploughing vertical rod 42, the feedback groove 83 is formed on the feedback column 82, the feedback cylinder 84 is slidingly connected on the end of the feedback shell 81 close to the ploughing vertical rod 42, the feedback pin 85 is fixedly connected in the feedback cylinder 84, the feedback pin 85 is matched with the feedback groove 83, the matching here means that when the elastic driving wheel 3 is driven by the driving motor 41 to rotate forward for ploughing, the elastic driving wheel 3 will drive the feedback disc 7 to rotate forward synchronously, when the driving tooth of the elastic driving wheel 3 is subjected to a certain resistance, the driving tooth will be deformed to a certain extent, at this time, the driving tooth will drive the feedback disc 7 to rotate reversely relative to the elastic driving wheel 3, and then the feedback disc 7 drives the feedback column 82 to rotate reversely relative to the feedback shell 81 and the feedback cylinder 84, so that the feedback cylinder 84 moves away from the elastic driving wheel 3 under the cooperation of the feedback pin 85 and the feedback groove 83 and the limiting of the feedback cylinder 84 and the feedback disc 7; similarly, when the resistance of the driving tooth of the elastic driving wheel 3 after deformation is reduced, the feedback disc 7 will rotate forward relative to the elastic driving wheel 3, so that the feedback cylinder 84 moves towards the elastic driving wheel 3, the trigger unit 86 is arranged on the side of the feedback cylinder 84 close to the ploughing vertical rod 42, which is used to drive the trigger rod 9 to move when the feedback cylinder 84 moves.

[0059] Please refer to Figures 5 to 9 , specifically, the trigger unit 86 comprises a trigger frame 861, a trigger sliding rod 862, a trigger ring 863 and a trigger turntable 864, the trigger frame 861 is fixedly connected on the ploughing horizontal rod 45, the trigger sliding rod 862 is slidingly connected on the trigger frame 861, the trigger ring 863 is fixedly connected on the side of the trigger sliding rod 862 close to the elastic driving wheel 3, the trigger turntable 864 is rotatably connected on the side of the trigger ring 863 close to the elastic driving wheel, the trigger turntable 864 abuts against the feedback cylinder 84, the rotatable connection of the trigger turntable 864 and the trigger ring 863 can reduce the friction between the feedback cylinder 84 and the trigger ring 863 when the feedback cylinder 84 rotates with the elastic driving wheel 3, the trigger rod 9 is arranged on the side of the trigger sliding rod 862 away from the elastic driving wheel 3.

[0060] Please refer to Figures 8 and 9Specifically, the soft soil marking component 10 includes a marking pump housing 101, a marking pressure plate 102, a marking elastic member 103 and a marking chamfer 104. The marking pump housing 101 is fixedly connected to the lower support platform 47. A pressure discharge port 105 is provided at the lower end of the marking pump housing 101, and a pressure replenishing port 106 is provided at the upper end of the marking pump housing 101. The pressure discharge port 105 can be a rubber duckbill valve, and the pressure replenishing port 106 can be a rubber petal valve, so that when the marking pressure plate 102 moves to the left, the outside air can enter the marking pump housing 101 from the pressure replenishing port 106, and at this time the pressure discharge port 105 remains closed; when the marking pressure plate 102 moves to the right, the pressure replenishing port 106 is closed, and the pressure discharge port 105 is opened by the internal pressure thrust. The marking pump housing 101 is filled with a degradable colored liquid, and the marking pressure plate 102 is slidably connected to the marking pump At the left end of the shell 101, the left and right ends of the marking spring 103 are connected to the marking pressure plate 102 and the marking pump shell 101 respectively, and the marking chamfer 104 is opened at the corresponding position of the trigger rod 9 at the left end of the marking pressure plate 102. The marking chamfer 104 cooperates with the end of the trigger rod 9 away from the elastic dial 3, and the marking pressure plate 102 cooperates with the right end of the anti-blocking rod 52. The cooperation here means that when the trigger rod 9 is located in front of the marking pressure plate 102, the anti-blocking rod 52 can contact the marking pressure plate 102 when it moves to the right, and push the marking pressure plate 102 to the right for a distance. When the trigger rod 9 approaches the marking pressure plate 102, the trigger rod 9 will gradually fit with the marking chamfer 104 and push the marking pressure plate 102 to the right along the marking chamfer 104 until the trigger rod 9 is completely moved to the left end of the marking pressure plate 102. At this time, the anti-blocking rod 52 cannot touch the marking pressure plate 102 when it moves to the right.

[0061] See also Figures 10 and 11 Specifically, the hard soil avoidance component 11 includes an avoidance frame 111 and an avoidance guide groove 112. The avoidance frame 111 is arranged at the position corresponding to the trigger rod 9 at the right end of the marking pump housing 101, and the avoidance guide groove 112 is opened on the avoidance frame 111. The avoidance guide groove 112 cooperates with the end of the trigger rod 9 away from the elastic dial 3. The cooperation here means that when the trigger rod 9 is fully moved to the left end of the marking pressure plate 102, when the resistance of the teeth of the elastic dial 3 becomes further increased, the trigger rod 9 will move further to the side away from the elastic dial 3, and the trigger rod 9 will fit with the avoidance guide groove 112 after moving a certain distance, and the trigger rod 9 will move upward along the avoidance guide groove 112, and then the trigger rod 9 drives the cultivated land component 4 and the elastic dial 3 to move upward relative to the connecting frame 5 as a whole, so that the cultivated land baffle 44 of the cultivated land component 4 moves upward to squeeze the cultivated land elastic part 43.

[0062] The rest of the structure is the same as that of Example 1.

[0063] Working principle: When performing tillage operations, after the drive motor 41 drives the elastic dial 3 to rotate, when the elastic dial 3 is tilling normal soil, the teeth of the elastic dial 3 will be subject to a certain resistance, causing the teeth of the elastic dial 3 to deform to a certain extent relative to the state of the untilled land, thereby causing the feedback disk 7 to rotate a certain distance in the opposite direction relative to the elastic dial 3 compared to the state when the elastic dial 3 is not tilling the land. At this time, the feedback cylinder 84 will move to the side away from the elastic dial 3 under the cooperation of the feedback pin 85 and the feedback slot 83. A distance, thereby making the trigger rod 9 close to the marking pressure plate 102, so that the marking pressure plate 102 is in the uncultivated state relative to the elastic dial 3, and the marking pressure plate 102 will be pushed to the right by the trigger rod 9 along the marking chamfer 104, so that when the elastic dial 3 plows normal soil, the marking pressure plate 102 is located in the right position, so that when the anti-blocking rod 52 moves to the right when the cutter 2 is working, it will not touch the marking pressure plate 102, thereby preventing the soft soil marking component 10 from being mistakenly marked when the elastic dial 3 is plowing the soil of normal texture.

[0064] When the elastic dial 3 encounters hardened land or land containing stones during the process of plowing the land, the resistance encountered by the elastic dial 3 during the forward rotation of the plowing land will increase sharply. At this time, the teeth of the elastic dial 3 will be further deformed due to the increased resistance, thereby causing the teeth to drive the feedback disk 7 to reverse a certain angle relative to the elastic dial 3 again. At this time, similarly, the feedback cylinder 84 will further push the trigger rod 9 to move away from the elastic dial 3. The trigger rod 9 will contact the avoidance guide groove 112 on the marking pump housing 101 after moving a further distance, and as the trigger rod 9 moves further, the trigger rod 9 will move upward along the avoidance guide groove 112, thereby causing the trigger rod 9 to drive the plowing component 4 and the elastic dial 3 to move upward relative to the connecting frame 5 as a whole, so that the plowing baffle of the plowing component 4 44 moves upward to squeeze the tillage elastic member 43, and finally the elastic dial 3 moves upward to the surface of the soil area that has been hardened or contains stones, and continues to be resisted by the hardened or stone-containing soil until it encounters soil of normal texture or too loose soil, so that the resistance encountered by the elastic dial 3 becomes smaller. At this time, the elastic dial 3 will move downward to reset under the action of the tillage elastic member 43, so that the elastic dial 3 can re-cultivate arable land with uniform depth, while the hardened or stone-containing land will not be cultivated or deeply plowed due to the upward movement of the elastic dial 3, so that workers can quickly distinguish the hardened or stone-containing land during subsequent inspections, which is convenient for workers to make targeted improvements to the hardened or stone-containing land, thereby ensuring the quality of arable land and increasing crop yields.

[0065] When the elastic dial 3 encounters too soft soil during the tillage process, since the elastic dial 3 will also be deformed when tilling normal soil, when encountering too soft soil, the resistance encountered by the teeth of the elastic dial 3 will be smaller than that of normal soil. At this time, the teeth of the elastic dial 3 will recover a certain degree of deformation, causing the feedback disk 7 to further rotate forward by a certain angle relative to the elastic teeth, thereby causing the feedback cylinder 84 and the trigger rod 9 to move a distance closer to the elastic dial 3. In this process, the trigger rod 9 moves relative to the tillage wheel 3. Under normal land conditions, the trigger rod 9 will move a distance from the left end of the marking pressure plate 102 and then move completely to the front end of the marking pressure plate 102, so that the marking pressure plate 102 is reset and moved to the left under the action of the marking elastic member 103, and then when the cutter 2 is working, it drives the anti-blocking rod 52 to move back and forth left and right. When the anti-blocking rod 52 moves to the right, the right end of the anti-blocking rod 52 can contact the marking pressure plate 102 and push the marking pressure rod to the right. When the anti-blocking rod 52 moves to the left, the marking pressure plate 102 can be reset and moved to the left under the action of the marking elastic member 103. When the marking pressure plate 102 moves to the left, the outside air can enter the marking pump housing 101 from the pressure replenishing port 106, and the pressure exhaust port 105 remains closed; when the marking pressure plate 102 moves to the right, the pressure replenishing port 106 is closed, and the pressure exhaust port 105 is opened by the internal pressure thrust, thereby squeezing the colored liquid between the marking pressure plate 102 and the marking pump housing 101 onto the land below, so that the elastic dial wheel 3 can mark the land that is too soft in time when it is plowed, so that the staff can make targeted improvements to the land that is too soft and reduce the occurrence of crop lodging. For example, when the soil lacks organic matter, the soil particles cannot be glued together, resulting in the soil being too loose, the operator can carry out targeted improvements such as adding organic fertilizer and returning straw to the field. For example, when the soil is too soft due to excessive water content, the operator can locally neutralize and improve the land by adding dry straw, rotten leaves, coarse sand, etc. By marking the soft soil component 10, workers can quickly distinguish between plowed soft soil and normal soil, and make targeted improvements based on the reasons why the soil is too soft, ultimately achieving the purpose and effect of improving sowing quality.

[0066] After the plowing is completed, the teeth of the elastic dial wheel 3 are completely free of resistance. At this time, the marking pressure plate 102 is no longer squeezed by the trigger rod 9 and is located in a position where it can contact the anti-blocking rod 52. At this time, it is only necessary to shut down the cutter 2 to prevent the colored liquid between the marking pressure plate 102 and the marking pump from being squeezed out after the plowing is completed. Of course, when the plowing has just begun, the teeth of the elastic dial wheel 3 will be deformed when entering the soil, and the marking pressure plate 102 will be pushed to the right by the trigger rod 9 to squeeze out a little colored liquid. This mark can be skipped when improving loose soil, and the starting point of the plowing can be easily identified.

[0067] Example 3

[0068] See also Figures 1 to 3 , provides a method for cultivating land using a straw-clearing no-tillage device, comprising the straw-clearing no-tillage device described in any of the above embodiments, and the following steps:

[0069] By setting the cutting knife 2 and the tillage part 4, the straw is cut and then tilled;

[0070] By providing the profiling component 6 and the connecting frame 5, the cutter 2 and the tilling component 4 can perform synchronous profiling during operation.

[0071] By setting the elastic dial wheel 3, the elastic dial wheel 3 is deformed according to the hardness of the soil when plowing;

[0072] By providing a trigger rod 9 and a feedback component 8, the elastic thumbwheel 3 drives the trigger rod 9 to move when deformed;

[0073] By providing a soft soil marking component 10, when the trigger rod 9 moves toward the side close to the elastic dial wheel 3, the cutting knife 2 marks the ground below;

[0074] By providing the hard soil avoiding component 11 , when the trigger rod 9 moves away from the elastic thumbwheel 3 , the elastic thumbwheel 3 is driven to move upward to above the ground.

[0075] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A straw-clearing and no-tillage device, comprising a frame (1), the left end of which is pulled by farming equipment, characterized in that: The invention comprises a cutting knife (2), an elastic thumbwheel (3), a tillage component (4), a connecting frame (5), a profiling component (6), a feedback disk (7), a feedback component (8), a trigger rod (9), a soft soil marking component (10) and a hard soil avoiding component (11); the cutting knife (2) is connected to the frame (1) via the profiling component (6); the profiling component (6) is used to drive the cutting knife (2) to perform profiling cutting on straws growing at different ground heights; the connecting frame (5) is connected to the right end of the profiling component (6); the elastic thumbwheel (3) is connected to the right end of the connecting frame (5) via the tillage component (4); the tillage component (4) drives the elastic thumbwheel (3) to eradicate the cut straws and cooperates with the profiling component (6) to cultivate the land; the feedback disk (7) is connected to the elastic thumbwheel (3), the trigger rod (9) is slidably connected between the elastic thumbwheel (3) and the cultivated land component (4), the feedback component (8) is arranged on the feedback disk (7) on the side close to the cultivated land component (4), and is used to drive the trigger rod (9) to move toward or away from the elastic thumbwheel (3) when the feedback disk (7) and the elastic thumbwheel (3) rotate relative to each other, the soft soil marking component (10) is arranged on the connecting frame (5), and is used to cooperate with the cutter (2) to mark the land below when the trigger rod (9) moves toward the side close to the elastic thumbwheel (3), and the hard soil avoiding component (11) is arranged between the cultivated land component (4) and the connecting frame (5), and is used to drive the elastic thumbwheel (3) to move upward to above the land when the trigger rod (9) moves toward the side away from the elastic thumbwheel (3).

2. The straw clearing and no-tillage device according to claim 1, characterized in that: The profiling component (6) comprises a profiling limiting cylinder (61), a profiling slide bar (62), a profiling elastic member (63), a chassis (64) and a universal wheel (65). The profiling limiting cylinder (61) is fixed to the lower side of the left end of the frame (1); the profiling slide bar (62) is slidably connected to the profiling limiting cylinder (61); the chassis (64) is connected to the lower end of the profiling slide bar (62); the profiling elastic member (63) is sleeved on the profiling slide bar (62) and connected between the profiling limiting cylinder (61) and the chassis (64); the universal wheel (65) is connected to the lower end of the chassis (64); and the connecting frame (5) is fixedly connected to the right end of the profiling slide bar (62).

3. The straw clearing and no-tillage device according to claim 2, characterized in that: The cutting knife (2) comprises a movable knife (21), a connecting rod (22) and a driving rod (23); the movable knife (21) is slidably connected to the upper end of the base frame (64) through an I-shaped card slot and a card block; the connecting rod (22) is fixed on the movable knife (21); the driving rod (23) is slidably connected to the frame (1); a connecting hole is provided on the driving rod (23); the connecting rod (22) is slidably connected to the driving rod (23) through the connecting hole; the driving rod (23) is driven by a reciprocating telescopic motor; and a knife edge cooperating with the movable knife (21) is provided at the left end of the base frame (64).

4. The straw clearing and no-tillage device according to claim 2, characterized in that: The connecting frame (5) is also provided with an anti-blocking unit for isolating the elastic thumbwheel (3) and the cutting knife (2), the anti-blocking unit comprising an anti-blocking groove (51), an anti-blocking rod (52), an anti-blocking baffle (53), an anti-blocking elastic member (54), an anti-blocking chamfer (55) and an anti-blocking piece (56). The anti-blocking groove (51) is provided in the connecting frame (5), the anti-blocking rod (52) is slidably connected in the anti-blocking groove (51), the anti-blocking baffle (53) is fixedly connected to the anti-blocking rod (52), the left and right ends of the anti-blocking elastic member (54) respectively abut against the right end of the anti-blocking baffle (53) and the inner wall of the connecting frame (5), the two ends of the anti-blocking piece (56) are respectively rotatably connected to the lower end of the anti-blocking baffle (53) and the right end of the base frame (64), the anti-blocking chamfer (55) is provided at the left end of the anti-blocking rod (52), and the anti-blocking chamfer (55) cooperates with the driving rod (23).

5. The straw clearing and no-tillage device according to claim 4, characterized in that: The cultivated land component (4) includes a driving motor (41), a cultivated land vertical rod (42), a cultivated land elastic member (43), a cultivated land baffle (44) and a cultivated land cross bar (45); the right end of the connecting frame (5) is fixedly connected to an upper support platform (46) and a lower support platform (47); the cultivated land vertical rod (42) is slidably connected to the upper support platform (46) and the lower support platform (47); the driving motor (41) is fixed to the cultivated land vertical rod (42); the cultivated land baffle ( The arable land spring (43) is fixedly connected to the middle of the arable land vertical rod (42), and its lower end is in contact with the lower support platform (47). The two ends of the arable land spring (43) are respectively in contact with the upper end of the arable land baffle (44) and the lower end of the upper support platform (46). The arable land cross bar (45) is fixedly connected to the side of the lower end of the arable land vertical rod (42). The elastic thumbwheel (3) is rotatably connected to the end of the arable land cross bar (45) away from the arable land vertical rod (42), and the elastic thumbwheel (3) cooperates with the ground.

6. The straw clearing and no-tillage device according to claim 5, characterized in that: The feedback component (8) comprises a feedback shell (81), a feedback column (82), a feedback slot (83), a feedback cylinder (84), a feedback pin (85) and a trigger unit (86); the feedback shell (81) is fixedly connected to the side of the elastic dial wheel (3) close to the tillage vertical rod (42); the feedback disk (7) is rotatably connected in the feedback shell (81); a plurality of fixed claws (71) are fixedly connected to the feedback disk (7); each fixed claw (71) is connected to the elastic dial tooth at a corresponding position; the feedback column (82) is fixedly connected to the feedback pin (85); The feedback groove (83) is provided on the feedback column (82) on the side of the feedback disk (7) close to the vertical rod (42) for cultivating the land. The feedback cylinder (84) is slidably connected to the end of the feedback housing (81) close to the vertical rod (42) for cultivating the land through a spline. The feedback pin (85) is fixedly connected in the feedback cylinder (84). The feedback pin (85) cooperates with the feedback groove (83). The trigger unit (86) is provided on the side of the feedback cylinder (84) close to the vertical rod (42) for cultivating the land and is used to drive the trigger rod (9) to move when the feedback cylinder (84) moves.

7. The straw clearing and no-tillage device according to claim 6, characterized in that: The trigger unit (86) comprises a trigger frame (861), a trigger slide bar (862), a trigger ring (863) and a trigger rotary disk (864); the trigger frame (861) is fixedly connected to the tillage cross bar (45); the trigger slide bar (862) is slidably connected to the trigger frame (861); the trigger ring (863) is fixedly connected to the side of the trigger slide bar (862) close to the elastic thumbwheel (3); the trigger rotary disk (864) is rotatably connected to the side of the trigger ring (863) close to the thumbwheel; the trigger rotary disk (864) abuts against the feedback cylinder (84); and the trigger rod (9) is arranged on the side of the trigger slide bar (862) away from the elastic thumbwheel (3).

8. The straw clearing and no-tillage device according to claim 7, characterized in that: The soft soil marking component (10) comprises a marking pump housing (101), a marking pressure plate (102), a marking elastic member (103) and a marking chamfer (104). The marking pump housing (101) is fixedly connected to the lower support platform (47). The lower end of the marking pump housing (101) is provided with a pressure discharge port (105). The upper end of the marking pump housing (101) is provided with a pressure replenishing port (106). The marking pressure plate (102) is slidably connected to the left end of the marking pump housing (101). The left and right ends of the marking elastic member (103) are respectively connected to the marking pressure plate (102) and the marking pump housing (101). The marking chamfer (104) is provided at a position corresponding to the trigger rod (9) at the left end of the marking pressure plate (102). The marking chamfer (104) cooperates with the end of the trigger rod (9) away from the elastic dial wheel (3). The marking pressure plate (102) cooperates with the right end of the anti-blocking rod (52).

9. The straw clearing and no-tillage device according to claim 1, characterized in that: The hard soil avoidance component (11) comprises an avoidance frame (111) and an avoidance guide groove (112); the avoidance frame (111) is arranged at a position corresponding to the trigger rod (9) at the right end of the marking pump housing (101); the avoidance guide groove (112) is provided on the avoidance frame (111); and the avoidance guide groove (112) cooperates with an end of the trigger rod (9) away from the elastic thumbwheel (3).

10. A method for cultivating land, characterized in that: The straw clearing and no-tillage device according to any one of claims 1 to 9 further comprises the following steps: By setting a cutting knife (2) and a tillage component (4), the straw is cut and then tilled; By arranging the profiling component (6) and the connecting frame (5), the cutter (2) and the tilling component (4) can perform synchronous profiling during operation; By providing an elastic thumbwheel (3), the elastic thumbwheel (3) is deformed according to the hardness of the soil when plowing the land; By providing a trigger rod (9) and a feedback component (8), the elastic thumbwheel (3) drives the trigger rod (9) to move when deformed; By providing a soft soil marking component (10), when the trigger rod (9) moves toward the side close to the elastic thumbwheel (3), the cutting knife (2) is used to mark the land below; By providing a hard soil avoidance component (11), when the trigger rod (9) moves to a side away from the elastic thumbwheel (3), the elastic thumbwheel (3) is driven to move upward to above the ground.

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