Straw strip-shaped rotary tillage returning machine and rotary tillage returning method

Abstract

The invention relates to the technical field of rotary tillage returning, and discloses a straw strip-shaped rotary tillage returning machine and a rotary tillage returning method.The straw strip-shaped rotary tillage returning machine comprises a machine body, a rotary traction frame is arranged on the outer wall of the top of the machine body, a gearbox is fixedly assembled on the top of the machine body, and the input end of the gearbox is connected with a power input shaft; a partition plate is fixedly assembled on the top of the machine body, a transmission mechanism in driving connection with the output end of the gearbox is assembled on the outer wall of one side of the machine body, a rotationally-arranged conveying belt is arranged at the bottom of the side, close to the cutting device, of the machine body, and a smashing device rotationally connected with the inner wall of the machine body is arranged on the top of the conveying belt. The side, away from the conveying belt, of the machine body is in driving connection with two rotary tillage devices. According to the equipment, cutting, conveying, smashing and rotary tillage returning of straw are integrated, and the whole process can be completed through one-time operation. The scraping plate on the tearing blade reciprocates on the guide rail along with sliding of the limiting rod, and soil adhering to the outer wall of the blade body can be effectively scraped off.

Description

Technical Field

[0001] The invention relates to the technical field of rotary tillage and field returning, in particular to a straw strip rotary tillage and field returning machine and a rotary tillage and field returning method. Background Art

[0002] At present, returning straw to the field is a common method of dealing with crop straw. It can effectively increase soil organic matter and improve soil structure.

[0003] However, existing straw returners still have some shortcomings in practical application. Traditional straw returners do not fully crush the straw. Large pieces of straw decompose slowly after being directly returned to the field, which not only affects subsequent sowing and tillage but can also become a breeding ground for pests and diseases. The machine is prone to clogging when handling wet or tough straw. Furthermore, the rotary tillage blades are prone to bending and deforming when encountering hard objects such as stones, affecting the normal operation of the equipment. The rotary tillage blades are prone to sticking large amounts of mud during operation, affecting the efficiency and effectiveness of the operation, and require tedious manual cleanup after the operation.

[0004] Therefore, the development of a new type of straw return machine that integrates cutting, efficient crushing, tearing, uniform mixing and self-cleaning functions is of great significance for improving agricultural production efficiency and protecting the ecological environment. Summary of the Invention

[0005] The present invention provides a straw strip rotary tillage returning machine and a rotary tillage returning method, which solve the problems raised by the above background technology.

[0006] The present invention provides the following technical solution: a straw strip rotary tillage and field returning machine, comprising a machine body, a rotating traction frame on the top outer wall of the machine body, a gearbox fixedly installed on the top of the machine body, an input end of the gearbox connected to a power input shaft, a baffle fixedly installed on the top of the machine body, a transmission mechanism driven and connected to the output end of the gearbox on one side of the machine body, a rotatably arranged conveyor belt on the bottom of the machine body close to the cutting device, a crushing device rotatably connected to the inner wall of the machine body on the top of the conveyor belt, and two sets of rotary tillage devices drivingly connected to the side of the machine body away from the conveyor belt.

[0007] As a preferred technical solution of the present invention: the rotary tillage machine is connected to the driving device through a traction frame, and the driving force of the rotary tillage machine is provided by connecting the power input shaft to the driving device.

[0008] As a preferred technical solution of the present invention: the power input shaft is drivingly connected to the input end of the transmission mechanism through a gearbox;

[0009] The transmission mechanism includes a driving gear rod rotatably connected to the top of one side of the machine body, an intermediate gear 1 rotating with the outer wall of the machine body near the end of the driving gear rod, a crushing drive gear, an intermediate gear 2, a conveying roller drive gear, a synchronous gear, and two sets of rotary tillage drive gears arranged on the side of the machine body away from the cutting device.

[0010] As a preferred technical solution of the present invention: wherein, the intermediate gear 1 is respectively connected to the driving gear rod and a group of rotary tillage drive gears, the intermediate gear 1 is meshed with the crushing drive gear, the two groups of rotary tillage drive gears are driven by meshing gears, the driving gear rod is connected to the intermediate gear 2, and the intermediate gear 2 is connected to the conveying roller drive gear;

[0011] The inner walls of both ends of the conveyor belt are rotatably mounted on the inner wall of the machine body through two sets of rotating shafts, and the end of one set of rotating shafts is connected to the conveyor roller drive gear, the end of the crushing device is connected to the crushing drive gear, and the two sets of rotary tillage drive gears are respectively connected to the ends of the two sets of rotary tillage devices;

[0012] As a preferred technical solution of the present invention: two groups of cutting devices connected to the output end of the transmission mechanism are provided on the side of the machine body close to the power input shaft, and two groups of cutting transmission gear rods are respectively engaged with the outer wall of the intermediate gear 2 close to the gearbox side, and the cutting transmission gear rod is engaged with a cutting driven gear rod at the end away from the intermediate gear 2. The end of the cutting driven gear rod is fixedly assembled with the cutting device, and the cutting transmission gear rod and the cutting driven gear rod are both rotatably assembled with the machine body.

[0013] As a preferred technical solution of the present invention: the pulverizing device includes a pulverizing roller, the outer wall of the pulverizing roller is fixedly equipped with a plurality of knife seats, and the inner wall of the knife seat rotates and moves the knife.

[0014] As a preferred technical solution of the present invention: support wheels are rotatably mounted on both sides of the machine body.

[0015] As a preferred technical solution of the present invention: the rotary tillage device includes a rotary tillage blade shaft, and a plurality of rotary tillage blade bodies are fixedly installed at intervals on the outer wall of the rotary tillage blade shaft;

[0016] The rotary tillage blade body includes a handle, a plurality of tearing blades are fixedly mounted on the outer wall of the handle, and a support ring is fixedly mounted on the outer ends of the plurality of tearing blades;

[0017] As a preferred technical solution of the present invention: the tearing blade includes a blade body, both sides of the outer wall of the blade body are provided with sliding groove openings, the side walls of the blade body are penetrated by a through hole, both sides of the outer walls of the blade body are fixedly equipped with guide rails, both sides of the inner walls of the through hole are slidably sleeved with sliders, the outer walls of the sliders are provided with inner sliding grooves, two groups of the sliders are connected with tension springs located on the inner walls of the through holes, the inner walls of the two groups of the inner sliding grooves are slidably sleeved with limit rods, both side ends of the limit rods are fixedly equipped with scrapers, and the scrapers and the guide rails are slidably sleeved;

[0018] The tearing blade and the knife handle are arranged obliquely.

[0019] A straw strip rotary tillage returning machine returns straw to the field. The ...

[0020] S1: The driving device drives the machine body to move in the field through the traction frame, and the driving force is transmitted to the transmission mechanism through the power input shaft and the gearbox;

[0021] S2: The transmission mechanism drives the cutting device to rotate and cut the straw in the field;

[0022] S3: The transmission mechanism drives the conveyor belt to rotate and convey the cut straw to the crushing device, where the crushing device crushes the straw;

[0023] S4: The transmission mechanism drives the rotary tillage device to rotate, and the straw that has fallen into the field after being processed by the crushing device is rotary tilled to fully mix the straw with the soil, completing the field return operation.

[0024] The present invention has the following beneficial effects:

[0025] This straw strip rotary tillage machine and method integrates straw cutting, conveying, crushing, and tillage, completing the entire process in a single operation. Power is rationally distributed to the cutting device, conveyor belt, crushing device, and rotary tillage device via a transmission mechanism, resulting in a compact structure, a clear transmission chain, and high operating efficiency.

[0026] 2. This straw strip rotary tillage machine and method utilizes a pulverizing device with a rotatable blade to perform secondary pulverization of the cut straw. The blade rotates as the pulverizing roller orbits, creating a compound shearing motion that significantly improves straw fragmentation, making the straw finer and facilitating its rapid decomposition in the soil.

[0027] 3. This straw strip rotary tillage machine and method features a unique tearing blade structure on the tillage mechanism. As the tiller shaft rotates at high speed, the limiting rods slide outward due to centrifugal force, driving the sliders on adjacent blades closer together. This design not only shreds the straw but also creates a tearing effect between the blades, further increasing the straw's surface area and allowing it to mix more thoroughly and evenly with the soil.

[0028] 4. In the straw strip rotary tillage and tillage returning machine and the rotary tillage and tillage returning method, the scraper on the tearing blade will reciprocate on the guide rail as the limit rod slides, which can effectively scrape off the soil adhering to the outer wall of the blade body, realize the self-cleaning function of the device, solve the problem of manual cleaning required for traditional equipment, and ensure the continuity and stability of the operation.

[0029] 5. In the straw strip rotary tillage and field return machine and rotary tillage and field return method, the end of the rotary tillage blade is fixed by a support ring, which enhances the overall rigidity and strength of the tearing blade, effectively avoids the blade from bending or being damaged due to hitting hard objects during operation, and improves the reliability and service life of the whole machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the structure of the present invention in use state;

[0031] Figure 2 This is a complete structural diagram of the present invention;

[0032] Figure 3 Schematic diagram of the transmission mechanism structure of the present invention;

[0033] Figure 4 This is a schematic diagram of the support wheel structure of the present invention;

[0034] Figure 5 This is a schematic structural diagram of the crushing device of the present invention;

[0035] Figure 6 This is a schematic diagram of the planar structure of the rotary tillage device of the present invention;

[0036] Figure 7 This is a schematic diagram of the planar structure of the rotary tillage cutter body of the present invention;

[0037] Figure 8 This is a schematic diagram of the installation of the tearing blade of the present invention;

[0038] Figure 9 This is a schematic diagram of the complete structure of the tearing blade of the present invention;

[0039] Figure 10 This is a schematic diagram of the tension spring structure of the present invention;

[0040] Figure 11This is a schematic diagram of the chute opening structure of the present invention.

[0041] In the figure: 1. Machine body; 2. Traction frame; 3. Gearbox; 4. Power input shaft; 5. Baffle plate; 6. Transmission mechanism; 7. Cutting device; 8. Crushing device; 9. Support wheel; 10. Rotary tillage device; 11. Conveyor belt;

[0042] 601, driving gear rod; 602, intermediate gear 1; 603, crushing drive gear; 604, intermediate gear 2; 605, rotary tillage drive gear; 606, synchronous gear; 607, conveyor roller drive gear; 608, cutting transmission gear rod; 609, cutting driven gear rod;

[0043] 801, crushing roller; 802, knife holder; 803, moving knife;

[0044] 101, rotary tillage blade shaft; 102, rotary tillage blade body; 1021, blade handle; 1022, tearing blade; 1023, support ring;

[0045] 10221. Blade body; 10222. Slide groove opening; 10223. Through hole; 10224. Guide rail; 10225. Slider; 10226. Inner slide groove; 10227. Tension spring; 10228. Scraper; 10229. Limit rod. DETAILED DESCRIPTION

[0046] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying 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.

[0047] See also Figures 1-11 A straw strip rotary tillage and field returning machine includes a body 1, a rotating traction frame 2 on the top outer wall of the body 1, a gearbox 3 fixedly assembled on the top of the body 1, the input end of the gearbox 3 is connected to the power input shaft 4, a baffle 5 fixedly assembled on the top of the body 1, a transmission mechanism 6 drivingly connected to the output end of the gearbox 3 is assembled on the outer wall of one side of the body 1, a rotatable conveyor belt 11 is provided at the bottom of the body 1 near the cutting device 7, a crushing device 8 rotatably connected to the inner wall of the body 1 is provided on the top of the conveyor belt 11, and two sets of rotary tillage devices 10 are drivingly connected to the side of the body 1 away from the conveyor belt 11.

[0048] In a preferred embodiment, the rotary tillage machine is connected to the driving device via the traction frame 2, and the driving force of the rotary tillage machine is provided by connecting the power input shaft 4 to the driving device.

[0049] The driving device refers to a device for driving the rotary tillage and field preparation machine to move in the working area, such as a tractor.

[0050] In a preferred embodiment, the power input shaft 4 is drivingly connected to the input end of the transmission mechanism 6 through the gearbox 3.

[0051] The transmission mechanism 6 comprises a driving gear rod 601 rotatably connected to the top of one side of the machine body 1, an intermediate gear one 602 rotatably arranged on the outer wall of the side close to the end of the driving gear rod 601 of the machine body 1, a crushing driving gear 603, an intermediate gear two 604, a conveying roller driving gear 607, a synchronous gear 606, and two groups of rotary tillage driving gears 605 arranged on the side of the machine body 1 away from the cutting device 7.

[0052] In a preferred embodiment, the intermediate gear one 602 is drivingly connected to the driving gear rod 601 and one group of rotary tillage driving gears 605, respectively, the intermediate gear one 602 is engaged with the crushing driving gear 603, the two groups of rotary tillage driving gears 605 are drivingly engaged through the synchronous gear 606, the driving gear rod 601 is drivingly connected to the intermediate gear two 604, and the intermediate gear two 604 is drivingly connected to the conveying roller driving gear 607.

[0053] The inner walls of the two ends of the conveying belt 11 are rotatably mounted to the inner walls of the machine body 1 through two groups of rotating shafts, the end of one group of rotating shafts is connected to the conveying roller driving gear 607, the end of the crushing device 8 is connected to the crushing driving gear 603, and the two groups of rotary tillage driving gears 605 are respectively connected to the ends of the two groups of rotary tillage devices 10.

[0054] In a preferred embodiment, two groups of cutting devices 7 are arranged on the side of the machine body 1 close to the power input shaft 4 and are connected to the output end of the transmission mechanism 6, the outer wall of the side close to the gearbox 3 of the intermediate gear two 604 is respectively engaged with two groups of cutting transmission gear rods 608, the end of the cutting transmission gear rod 608 away from the intermediate gear two 604 is engaged with a cutting driven gear rod 609, the end of the cutting driven gear rod 609 is fixedly assembled with the cutting device 7, and the cutting transmission gear rod 608 and the cutting driven gear rod 609 are rotatably assembled with the machine body 1.

[0055] In the above structure, the driving device is powered through the power input shaft 4 and the gearbox 3 to the driving gear rod 601, which is drivingly connected to the intermediate gear two 604 and the intermediate gear one 602, respectively, and drives the cutting transmission gear rod 608 and the cutting driven gear rod 609 through the intermediate gear two 604 to rotate the cutting device 7, so that when the driving device, i.e., the tractor, drives the rotary tillage and field preparation machine to move, the rotary cutting device 7 can cut the straw in the working field.

[0056] The conveyor belt 11 located at the rear side of the cutting device 7 in the moving direction is rotated by the conveyor roller driving gear 607 driven by the intermediate gear 2 604, so that the cut straw can pass through the intermediate gear 1 602 and the crushing driving gear 603 to drive the rotating crushing device 8 to be crushed and then naturally fall to the surface of the field;

[0057] Finally, the soil is crushed by the rotary tillage device 10, and the crushed straw is mixed with the soil.

[0058] In a preferred embodiment, the crushing device 8 includes a crushing roller 801 , the outer wall of the crushing roller 801 is fixedly equipped with a plurality of knife seats 802 , and the inner wall of the knife seat 802 is provided with a rotating knife 803 .

[0059] In the above structure, the movable blade 803 is rotatably connected to the inner wall of the blade holder 802, so that when the crushing drive gear 603 drives the crushing device 8 to rotate, its movable blade 803 will further rotate with the rotation of the crushing roller 801, thereby increasing the degree of crushing of the straw by the crushing device 8.

[0060] In a preferred embodiment, support wheels 9 are rotatably mounted on both sides of the machine body 1 .

[0061] In the above structure, by providing the support wheel 9, the rotary tillage machine can be supported by the support wheel 9, so that the rotary tillage machine can be moved in the field, reducing the friction between the rotary tillage machine and the field.

[0062] In a preferred embodiment: the rotary tillage device 10 includes a rotary tillage blade shaft 101, and a plurality of rotary tillage blade bodies 102 are fixedly installed at intervals on the outer wall of the rotary tillage blade shaft 101;

[0063] The rotary tiller blade 102 includes a handle 1021 , a plurality of tearing blades 1022 are fixedly mounted on the outer wall of the handle 1021 , and a support ring 1023 is fixedly mounted on the outer ends of the plurality of tearing blades 1022 ;

[0064] In a preferred embodiment, the tearing blade 1022 includes a blade body 10221, and both sides of the outer wall of the blade body 10221 are provided with sliding grooves 10222, and the side walls of the blade body 10221 are penetrated by a through hole 10223. The outer walls of both sides of the blade body 10221 are fixedly equipped with guide rails 10224, and both sides of the inner walls of the through hole 10223 are slidably sleeved with sliders 10225. The outer walls of the sliders 10225 are provided with inner sliding grooves 10226. A tension spring 10227 located on the inner wall of the through hole 10223 is connected between the two groups of sliders 10225. The inner walls of the two groups of inner sliding grooves 10226 are slidably sleeved with limit rods 10229. The two side ends of the limit rod 10229 are fixedly equipped with scrapers 10228, and the scrapers 10228 and the guide rails 10224 are slidably sleeved.

[0065] The tearing blade 1022 and the handle 1021 are arranged at an angle.

[0066] In the above structure, the ends of the tearing blades 1022 away from the ends are fixed by the support ring 1023, so that the tearing blades 1022 can be supported by the support ring 1023, thereby preventing the rotary tillage device 10 from coming into contact with foreign objects during operation, thereby preventing the tearing blades 1022 from bending.

[0067] When the rotary tillage driving gear 605 drives the rotary tillage device 10 to rotate, the knife handle 1021 is inclined relative to the tearing blade 1022, so that the limiting rod 10229 slidably sleeved on the outer wall of the blade body 10221 can be affected by the centrifugal force and move toward the side close to the knife handle 1021. The limiting rod 10229 slides on the inner wall of the inclined inner slide groove 10226 through the scraper 10228, so that the limiting rod 10229 drives the slider 10225 located on the inner wall of the through hole 10223 to move, thereby causing the two groups of sliders 10225 to move in opposite directions.

[0068] When the two sets of rotary tilling devices 10 are arranged relative to each other, the rotary tilling blades 102 in the two sets of rotary tilling devices 10 are spaced apart. Therefore, when the two sets of sliders 10225 in the rotary tilling blades 102 move in opposite directions, the sliders 10225 between the two sets of rotary tilling blades 102 will move relative to each other, thereby reducing the distance between the two sets of sliders 10225. As a result, when the rotary tilling devices 10 crush the soil, the straw entering the rotary tilling devices 10 along with the soil can be cut by the support rings 1023 in the two sets of rotating rotary tilling devices 10. At the same time, the two sets of sliders 10225 with reduced distance between them can form a tearing operation, thereby further increasing the surface area of ​​the straw and increasing the decomposition speed of the straw in the field.

[0069] By changing the rotation speed of the rotary tillage device 10 and pulling the two sets of sliders 10225 through the tension spring 10227, the two sets of sliders 10225 are moved relative to each other, so that the distance between the sliders 10225 in the two sets of rotary tillage devices 10 is reduced, thereby avoiding the problem that some hard straws are stuck on the sliders 10225 and cause damage to the sliders 10225;

[0070] On the other hand, by sliding the limiting rod 10229 on the outer wall of the blade body 10221, the limiting rod 10229 can clean the dirt adhered to the outer wall of the blade body 10221, thereby solving the problem of manual cleaning required in traditional equipment.

[0071] A straw strip rotary tillage returning machine returns straw to the field. The returning method comprises the following steps:

[0072] S1: the driving device drives the machine body 1 to move in the field through the traction frame 2, and the driving force is transmitted to the transmission mechanism 6 through the power input shaft 4 and the gearbox 3;

[0073] S2: the transmission mechanism 6 drives the cutting device 7 to rotate to cut the straw in the field;

[0074] S3: the transmission mechanism 6 drives the conveying belt 11 to rotate to convey the cut straw to the crushing device 8, and the crushing device 8 crushes the straw;

[0075] S4: the transmission mechanism 6 drives the rotary tiller 10 to rotate to rotary till the straw falling into the field after being processed by the crushing device 8, so that the straw is fully mixed with the soil to complete the straw returning to the field.

[0076] Working principle: the driving device (such as a tractor) pulls the whole machine through the traction frame 2, the power output shaft is connected to the power input shaft 4, and the power is transmitted to the transmission mechanism 6 through the gearbox 3. The transmission mechanism 6 drives the cutting device 7 on the front side to rotate to cut the straw on the ground, drives the conveying belt 11 to convey the cut straw upward to the crushing device 8, and the crushing device 8 rotates at high speed to crush the straw. Finally, the transmission mechanism 6 drives the rotary tiller 10 on the back side to turn the crushed straw into the soil, mix it with the soil, and realize the rotary tillage of the straw returning to the field.

[0077] It should be noted that, in this text, relational terms such as first and second and the like are used merely to distinguish one entity or action from another, without necessarily requiring or implying any such actual relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus including a list of elements does not only include those elements, but also includes other elements not explicitly listed, or inherent to such a process, method, article, or apparatus.

[0078] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A straw strip rotary tillage machine, comprising a machine body (1), characterized in that: The top outer wall of the machine body (1) is provided with a rotating traction frame (2), the top of the machine body (1) is fixedly provided with a gearbox (3), the input end of the gearbox (3) is connected to a power input shaft (4), the top of the machine body (1) is fixedly provided with a baffle (5), the outer wall of one side of the machine body (1) is provided with a transmission mechanism (6) which is drive-connected to the output end of the gearbox (3), the bottom of the machine body (1) close to the cutting device (7) is provided with a rotatable conveyor belt (11), the top of the conveyor belt (11) is provided with a crushing device (8) which is rotatably connected to the inner wall of the machine body (1), and the side of the machine body (1) away from the conveyor belt (11) is drive-connected to two sets of rotary tillage devices (10).

2. The straw strip rotary tillage machine according to claim 1, characterized in that: The rotary tillage machine is connected to the driving device via a traction frame (2), and the driving force of the rotary tillage machine is provided by connecting the power input shaft (4) to the driving device.

3. The straw strip rotary tillage machine according to claim 1, characterized in that: The power input shaft (4) is drivingly connected to the input end of the transmission mechanism (6) through the gearbox (3); The transmission mechanism (6) comprises a driving gear rod (601) rotatably connected to the top of one side of the machine body (1), an intermediate gear 1 (602) rotatably connected to the outer wall of the machine body (1) near the end of the driving gear rod (601), a crushing drive gear (603), an intermediate gear 2 (604), a conveying roller drive gear (607), a synchronous gear (606), and two sets of rotary tillage drive gears (605) arranged on the side of the machine body (1) away from the cutting device (7).

4. The straw strip rotary tillage machine according to claim 3, characterized in that: in, The intermediate gear 1 (602) is connected to the driving gear rod (601) and a group of rotary tillage drive gears (605) respectively, the intermediate gear 1 (602) is meshed with the crushing drive gear (603), the two groups of rotary tillage drive gears (605) are meshed and driven by the synchronous gear (606), the driving gear rod (601) is connected to the intermediate gear 2 (604), and the intermediate gear 2 (604) is connected to the conveying roller drive gear (607); The inner walls at both ends of the conveyor belt (11) are rotatably mounted to the inner wall of the machine body (1) via two sets of rotating shafts, and the end of one set of rotating shafts is connected to the conveyor roller drive gear (607), the end of the crushing device (8) is connected to the crushing drive gear (603), and the two sets of rotary tillage drive gears (605) are respectively connected to the ends of the two sets of rotary tillage devices (10).

5. The straw strip rotary tillage machine according to claim 4, characterized in that: Two groups of cutting devices (7) connected to the output end of the transmission mechanism (6) are provided on the side of the machine body (1) close to the power input shaft (4), and the outer wall of the intermediate gear 2 (604) close to the gearbox (3) is respectively engaged with two groups of cutting transmission gear rods (608), and the end of the cutting transmission gear rod (608) away from the intermediate gear 2 (604) is engaged with a cutting driven gear rod (609), and the end of the cutting driven gear rod (609) is fixedly assembled with the cutting device (7), and the cutting transmission gear rod (608) and the cutting driven gear rod (609) are both rotatably assembled with the machine body (1).

6. The straw strip rotary tillage machine according to claim 1, characterized in that: The crushing device (8) comprises a crushing roller (801), the outer wall of the crushing roller (801) is fixedly equipped with a plurality of knife seats (802), and the inner wall of the knife seat (802) is provided with a rotating knife (803).

7. The straw strip rotary tillage machine according to claim 1, characterized in that: Support wheels (9) are rotatably mounted on both sides of the machine body (1).

8. The straw strip rotary tillage machine according to claim 1, characterized in that: The rotary tillage device (10) comprises a rotary tillage blade shaft (101), and a plurality of fixedly assembled rotary tillage blade bodies (102) are arranged at intervals on the outer wall of the rotary tillage blade shaft (101); The rotary tillage blade body (102) comprises a blade handle (1021), a plurality of tearing blades (1022) are fixedly mounted on the outer wall of the blade handle (1021), and a support ring (1023) is fixedly mounted on the outer ends of the plurality of tearing blades (1022).

9. The straw strip rotary tillage machine according to claim 8, characterized in that: The tearing blade (1022) comprises a blade body (10221), both sides of the outer wall of the blade body (10221) are provided with sliding grooves (10222), the side wall of the blade body (10221) is provided with a through hole (10223), both sides of the outer wall of the blade body (10221) are fixedly equipped with guide rails (10224), both sides of the inner wall of the through hole (10223) are slidably sleeved with sliders (10225), and the sliders ( An inner slide groove (10226) is provided on the outer wall of the two sets of sliders (10225), a tension spring (10227) located on the inner wall of the through hole (10223) is connected between the two sets of sliders (10225), the inner walls of the two sets of inner slide grooves (10226) are slidably sleeved on the limit rods (10229), and both side ends of the limit rods (10229) are fixedly equipped with scrapers (10228), and the scrapers (10228) and the guide rails (10224) are slidably sleeved; The tearing blade (1022) and the handle (1021) are arranged at an angle.

10. A method for returning straw to the field using a strip-shaped rotary tillage machine, characterized in that: The method for returning farmland to the field comprises the following steps: S1: The driving device drives the machine body (1) to move in the field through the traction frame (2), and the driving force is transmitted to the transmission mechanism (6) through the power input shaft (4) and the gearbox (3); S2: The transmission mechanism (6) drives the cutting device (7) to rotate and cut the straw in the field; S3: The transmission mechanism (6) drives the conveyor belt (11) to rotate, and conveys the cut straw to the crushing device (8), and the crushing device (8) crushes the straw; S4: The transmission mechanism (6) drives the rotary tillage device (10) to rotate, and performs rotary tillage on the straw that has fallen into the field after being processed by the crushing device (8), so that the straw is fully mixed with the soil, and the field return operation is completed.

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