Straw rolling and deep application device for straw returning to field

Abstract

The application discloses a straw turning and deep applying device for straw returning to field, belonging to the technical field of agricultural machinery, which comprises a support frame, a crushing assembly and a soil turning assembly which are detachably connected to the support frame, the crushing assembly is used for cutting and crushing straw, the soil turning assembly is used for ploughing soil, one end of the support frame close to a tractor is fixedly connected with a tractor, the tractor is used for connecting the tractor, the other end of the support frame is fixedly connected with a soil pressing assembly, the soil pressing assembly is used for restoring the flatness of the field, and the part of the support frame close to the soil pressing assembly is fixedly connected with a fixed cross beam, the fixed cross beam is used for reinforcing the structure of the support frame and connecting part of the soil turning assembly. The application has the advantages of simple structure, crushing of straw by using non-rotating shaft transmission, turning and deep applying of the field, avoidance of the entanglement and blockage of the turned-up soil and straw fragments on the parts, convenience in production and maintenance, and suitability for wide promotion and application.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, in particular to a straw turning, compacting and deep application device for returning straw to fields. Background Art

[0002] The origins of straw return to the field can be traced back to the early 20th century. It was designed to prevent soil erosion and improve farmland fertility. The technical principles of straw return, including tumbling and deep application, primarily involve straw collection, chopping, tumbling, and deep application. Specifically, straw is collected using mechanical equipment; chopped into appropriate lengths using a chopping device; tumbled and pressed into the soil using a tumbling device; and evenly distributed throughout the soil using a deep application device. This approach offers the following benefits: after returning the straw to the field, it undergoes biodegradation and is converted into organic fertilizer, providing sufficient nutrients for plants and improving soil fertility. Furthermore, straw return increases soil cover, reduces soil erosion by rainwater, and effectively prevents soil erosion. It also reduces the use of chemical fertilizers and pesticides, lowering agricultural production costs. Furthermore, straw return is a form of resource recycling, helping to reduce environmental pollution from agricultural waste and promote sustainable agricultural production.

[0003] At present, a relatively complete technical system has been formed for straw return, compaction and deep application devices, such as pulverizing rotary tillers and other agricultural machinery with both pulverizing and compacting functions. However, due to the high technical and manufacturing costs of straw return machinery, straw return machinery has encountered difficulties in application and promotion. In addition, many straw return machinery adopts a rotating shaft design, such as pulverizing rotary tillers. During operation, the transmission shaft is more likely to be blocked and entangled by soil and straw, causing mechanical jamming, and even damage to the machinery in severe cases.

[0004] Therefore, it is necessary to propose a straw turning and deep application device for returning straw to the field, which is not easily affected by soil and straw and causes jamming during operation, has a simple structure, and has low production cost. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to provide a straw turning and deep application device for returning straw to the field, which crushes the straw by using non-rotating shaft transmission and turns and deeply applies the straw to the cultivated land. It has a simple structure, is easy to produce and maintain, and is suitable for wide promotion and application.

[0006] In order to achieve the above-mentioned purpose, the technical solution of the present invention is as follows: A straw turning and deep application device for returning straw to the field, comprising a support frame, to which a crushing assembly and a turning assembly are detachably connected, the crushing assembly is used to cut and crush the straw, the turning assembly is used to turn the soil, one end of the support frame close to the tractor is fixedly connected to a tractor, the tractor is used to connect to the tractor, and the other end is fixedly connected to a soil compacting assembly, the soil compacting assembly is used to restore the flatness of the cultivated land, the part of the support frame close to the soil compacting assembly is fixedly connected to a fixed beam, the fixed beam is used to reinforce the support frame structure and connect part of the turning assembly.

[0007] The principle of the basic solution is: through the traction of the tractor, the crushing assembly crushes the straw in front of the tillage assembly, and evenly distributes the crushed straw in front of the tillage assembly. The tillage assembly turns the soil to mix the straw with the soil. The soil pressing assembly behind the tillage assembly flattens the turned-up soil to restore the flatness of the cultivated land and ensure the deep application effect of straw return to the field.

[0008] The beneficial effects of the basic solution are: 1. The straw is crushed by the crushing component, which can cut the straw into uniform straw pieces. Compared with direct rotary tillage and pressing, the chopped straw can promote better straw fermentation effect and improve the yield increase efficiency of straw return to the field.

[0009] 2. The soil turning component can stir the soil and crush the straw at the same time during deep plowing. The soil turning component does not use a rotating shaft drive, which reduces the blocking effect of turned-up soil and straw crushing on the soil turning component, thereby reducing the possibility of mechanical jamming and improving the efficiency of straw return to the field.

[0010] 3. The soil pressing assembly at the tail of the support frame can well balance the support frame, so that the soil turning assembly fits tightly with the cultivated land, better ensuring the depth standard of soil turning and deep application, and improving the deep application effect of straw return to the field.

[0011] 4. The height of the support frame relative to the ground can also be adjusted through the soil compacting assembly. When the soil turning assembly encounters objects that are difficult to turn over, such as stones, the soil compacting assembly can be used to adjust the height of the support frame to lift the soil turning assembly to avoid obstacles, thereby preventing the soil turning assembly from being damaged and improving the efficiency of deep soil turning.

[0012] Furthermore, the crushing assembly includes a power cabin and a crushing cabin. A motor is provided inside the power cabin. The motor output shaft is coaxially fixedly connected to an eccentric wheel. A connecting rod is eccentrically fixedly connected to a side of the eccentric wheel away from the motor. An end of the connecting rod away from the eccentric wheel is slidably sleeved on a sliding trough body. The sliding trough body has a vertical sliding groove. A swing rod is fixedly connected to the bottom of the sliding trough body. A rectangular opening is provided on the top wall of the crushing cabin. The swing rod passes downward through the rectangular opening and enters the crushing cabin.

[0013] The swing rod in the crushing chamber extends to the bottom wall of the crushing chamber, and a number of swing beams are fixedly connected to the middle of the swing rod in the crushing chamber. The vertical distance between the swing beams is not more than 10 cm, and a number of swing arms are detachably connected to the swing beams. The swing arm on the same swing beam is fixedly connected to the same tooth piece at one end away from the swing beam. The number of tooth pieces corresponds to the number of swing beams. The bottom of the tooth piece is slidably fitted with a tooth plate, and the lateral ends of the tooth plate are fixedly connected to the two side walls of the crushing chamber. A number of continuous single-bevel shearing teeth are provided on the side of the tooth piece and the tooth plate away from the swing beam, and the shearing tooth bevel of the tooth piece faces the side away from the tooth plate, and the shearing tooth bevel of the tooth plate faces the side away from the tooth piece. A feed port is provided on the side wall of the crushing chamber close to the traction assembly, and a number of discharge ports are provided on the side wall of the crushing chamber away from the traction assembly;

[0014] A number of fixed arms are fixedly connected to the top of the power cabin, and the fixed arms are detachably connected to the support frame and the support frame.

[0015] The beneficial effects of the basic scheme are: the circular rotation of the eccentric wheel is converted into lateral swing through the sliding trough, and the gear pieces are driven to slide and cooperate with the tooth plate, thereby enhancing the straw crushing effect within the coverage range of the gear pieces, and protecting the motor and transmission shaft in the power cabin to avoid the entanglement and blocking effect of external dust and straw fragments on the shaft, thereby ensuring the uniform crushing of the straw to meet the requirements of returning to the field, improving the work efficiency of straw crushing, and enhancing the work effect of deep application of straw returning to the field.

[0016] Furthermore, the two lateral ends of the tooth piece are fixedly connected with tooth piece sliders, the tooth piece sliders are slidably matched with tooth piece sliding grooves, and a number of springs are fixedly connected between the tooth piece sliding grooves and the side walls of the crushing chamber.

[0017] The beneficial effects of the basic scheme are: through the sliding cooperation between the tooth piece slider and the slide groove, and the energy storage and vibration reduction effect of the spring, the tooth piece is prevented from colliding with the crushing bulkhead during the lateral swing process, causing mechanical failure and economic losses, and because the swing arm and the swing beam are detachable, when the shearing teeth of the tooth piece are broken, the swing arm can be removed, and the swing arm and the tooth piece can be taken out together through the slide groove for repair and replacement, reducing maintenance costs and time.

[0018] Furthermore, a power slide groove is opened on the inner wall of the power cabin, and the power slide groove is slidably matched with the slide groove body; a swing slide groove is opened on the inner wall of the crushing cabin, and the swing slide groove is slidably matched with the bottom end of the swing rod.

[0019] The beneficial effects of the basic scheme are: through the restrictions of the power chute and the swing chute, the swing working trajectory of the sliding chute and the swing rod is stabilized, accidental damage to high-speed moving parts during work is avoided, the stability of operation is improved, and unnecessary economic and time losses are avoided.

[0020] Furthermore, the soil-turning assembly includes several first deep sowing shovels and several second deep sowing shovels. The first deep sowing shovels and the second deep sowing shovels both include shovel arms, and the bottom ends of the shovel arms are detachably connected to the shovel tips. The first deep sowing shovel is detachably connected to the front of the support frame, and the second deep sowing shovel is detachably connected to the fixed beam.

[0021] The beneficial effects of the basic solution are: deep tillage of cultivated land by means of a deep loosening shovel can reduce the use of shaft transmission, enhance operational stability and reliability, streamline the mechanical structure, reduce energy consumption, and when the shovel tip is accidentally broken or blunted, the shovel tip can be replaced more conveniently, reducing the economic and time losses of maintenance.

[0022] Furthermore, the first deep plowing shovel and the second deep plowing shovel are arranged alternately in sequence.

[0023] The beneficial effects of the basic scheme are: through the staggered arrangement of deep tillage shovels, the uniformity and effectiveness of linear tillage can be improved, and the efficiency and effect of deep application of straw during tillage can be improved. In addition, the use of double-row deep tillage shovels can reduce the concentration of mechanical stress on the same plane of the support frame during work, so that the stress is evenly distributed on the support frame, preventing metal fatigue, extending the normal service life of the machinery, and thus reducing maintenance and production costs.

[0024] Furthermore, the fixed arm, the shovel arm of the first deep sowing shovel and the shovel arm of the second deep sowing shovel are all provided with a plurality of equidistant threaded holes.

[0025] The beneficial effect of the basic scheme is: by adjusting the fixed threaded holes, the height of the crushing component and the soil turning component can be adjusted, and then the stubble height and soil turning depth of the straw crushing during the straw return and deep application process can be adjusted, thereby improving the applicability to different cultivated land conditions.

[0026] Furthermore, the soil pressing assembly includes a load-bearing bracket, which is fixedly connected to the support frame. The bottom end of the load-bearing bracket is rotatably connected to a soil pressing shaft, and a number of soil pressing wheels are fixedly connected to the soil pressing shaft. The axial position and number of the soil pressing wheels correspond to the first deep plowing shovel and the second deep plowing shovel.

[0027] The beneficial effects of the basic solution are: the weight of the load-bearing bracket and the soil pressing wheel can balance the support frame, press the deep loosening shovel of the soil turning assembly into the ground of the cultivated land, ensure the turning depth of the deep loosening shovel, and ensure the working effect of deep application of straw return to the field. The soil pressing wheel corresponds to the position of the deep loosening shovel, and is used to flatten the soil turned up by the deep loosening shovel, restore the flatness of the cultivated land, and compact the straw fragments into the cultivated land, thereby improving the efficiency of straw fermentation after straw return to the field.

[0028] Furthermore, an electric cylinder is provided in the middle of the load-bearing bracket.

[0029] The beneficial effects of the basic solution are: by adjusting the length of the load-bearing bracket through the electric cylinder, the height of the support bracket relative to the ground can be adjusted, so that the deep loosening shovel of the soil-turning component can avoid some harder obstacles and continue to turn over and deeply apply the soil after lowering the support bracket, thereby improving the efficiency of returning straw to the field and avoiding economic losses caused by unexpected failures.

[0030] Furthermore, the tractor is provided with a traction shaft hinged to one end of the support frame close to the tractor.

[0031] The beneficial effect of the basic solution is that by pulling the rotating shaft together with the load-bearing bracket, the support frame can be raised to jump over harder obstacles, thus avoiding economic losses caused by collision damage. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is an axonometric view of an embodiment of a straw turning and deep application device for returning straw to the field according to the present invention.

[0033] Figure 2 It is a side sectional view of an embodiment of a straw turning and deep application device for returning straw to fields according to the present invention.

[0034] Figure 3 This is a top view of an embodiment of a straw turning and deep application device for returning straw to fields according to the present invention.

[0035] Figure 4 This is a top sectional view of the crushing assembly of an embodiment of the straw turning and deep application device for returning straw to the field according to the present invention.

[0036] Figure 5 This is a side sectional view of a crushing assembly of an embodiment of a straw turning and deep application device for returning straw to the field according to the present invention.

[0037] The figure marks in the drawings of the specification include: 1. first deep sowing shovel; 2. shovel tip; 3. discharge port; 4. crushing chamber; 5. swing chute; 6. tooth plate; 7. tooth plate; 8. swing arm; 9. swing beam; 10. feed port; 11. swing rod; 12. tractor; 13. traction shaft; 14. support frame; 15. power chute; 16. sliding trough; 17. connecting rod; 18. eccentric wheel; 19. power compartment; 20. fixed arm; 21. motor; 22. shovel arm; 23. fixed beam; 24. load-bearing bracket; 25. electric cylinder; 26. soil pressing wheel; 27. soil pressing shaft; 28. second deep sowing shovel; 29. ​​tooth plate slider; 30. tooth plate chute; 31. spring. DETAILED DESCRIPTION

[0038] The following is further described in detail through specific implementation methods:

[0039] Example 1

[0040] Basically as attached Figure 1 、 Figure 2 、 Figure 4 and Figure 5 As shown: A straw turning and deep application device for returning straw to the field, including a support frame 14, a crushing assembly and a turning assembly are bolted to the support frame 14, the crushing assembly is used to cut and crush the straw, and the turning assembly is used to turn the soil. A tractor 12 is welded to one end of the support frame 14 close to the tractor, and the tractor 12 is used to connect to the tractor, and a soil compacting assembly is welded to the other end, and the soil compacting assembly is used to restore the flatness of the cultivated land. A fixed crossbeam 23 is welded to the part of the support frame 14 close to the soil compacting assembly, and the fixed crossbeam 23 is used to reinforce the structure of the support frame 14 and connect part of the turning assembly.

[0041] The crushing assembly includes a power cabin 19 and a crushing cabin 4. A motor 21 is welded inside the power cabin 19. An eccentric wheel 18 is coaxially welded to the output shaft of the motor 21. A connecting rod 17 is eccentrically welded to the side of the eccentric wheel 18 away from the motor 21. A sliding groove 16 is slidably sleeved on the end of the connecting rod 17 away from the eccentric wheel 18. The sliding groove 16 has a vertical sliding groove. A swing rod 11 is welded to the bottom of the sliding groove 16. A rectangular opening is opened on the top wall of the crushing cabin 4. The swing rod 11 passes downward through the rectangular opening and enters the crushing cabin 4.

[0042] The swing rod 11 in the crushing chamber 4 extends to the bottom wall of the crushing chamber 4. A number of swing beams 9 are welded to the middle of the swing rod 11 in the crushing chamber 4. The vertical distance between the swing beams 9 is not more than 10 cm. A number of swing arms 8 are bolted to the swing beams 9. The swing arm 8 on the same swing beam 9 is welded with the same tooth piece 7 at one end away from the swing beam 9. The number of tooth pieces 7 corresponds to the number of swing beams 9. The bottom of the tooth piece 7 is slidably matched with a tooth plate 6. The lateral ends of the tooth plate 6 are welded to the two side walls of the crushing chamber 4. The tooth piece 7 and the tooth plate 6 are away from the swing beam 9. A plurality of continuous single-bevel shear teeth are provided on one side of the movable crossbeam 9. The shearing bevel of the tooth piece 7 faces the side away from the tooth plate 6, and the shearing bevel of the tooth plate 6 faces the side away from the tooth piece 7. The transverse ends of the tooth piece 7 are welded with tooth piece sliders 29. The tooth piece sliders 29 are slidably fitted with tooth piece slides 30. A plurality of springs 31 are welded between the tooth piece slides 30 and the side walls of the crushing chamber 4 to prevent the tooth piece 7 from swinging and colliding with the side walls of the crushing chamber 4. A feed port 10 is provided on the side wall of the crushing chamber 4 close to the traction assembly, and a plurality of discharge ports 3 are provided on the side wall of the crushing chamber 4 away from the traction assembly.

[0043] A power slide 15 is provided on the inner wall of the power cabin 19, and the power slide 15 slides with the sliding slot body 16; a swing slide 5 is provided on the inner wall of the crushing cabin 4, and the swing slide 5 slides with the bottom end of the swing rod 11. A number of fixed arms 20 are welded on the top of the power cabin 19, and the fixed arms 20 are provided with a number of equidistant threaded holes for disassembling and adjusting the overall height of the crushing assembly. The fixed arms 20 are all bolted to the support frame 14.

[0044] The specific implementation process is as follows: When the staff starts the tractor and pulls the support frame 14 forward through the tractor 12, the crushing assembly bolted to the front of the support frame 14 is started, the motor 21 rotates to drive the eccentric wheel 18 to rotate, and the connecting rod 17 makes radial movement. Since the connecting rod 17 is slidably sleeved in the sliding groove body 16, and the sliding groove body 16 has a vertical slide groove, the radial movement of the connecting rod 17 is converted into a horizontal reciprocating swing by the sliding groove body 16. The sliding groove body 16 is restricted in the power slide groove 15, and the swing rod 11 is restricted in the rectangular opening and the swing slide groove 5. In the process, the swing of the sliding trough 16 is stably transmitted to the swing rod 11, and the swing rod 11 swings the tooth piece 7 to slide back and forth horizontally on the tooth plate 6 through the swing beam 9 and the swing arm 8. At this time, the tooth piece 7 and the single-bevel shearing space at the front end of the tooth plate 6 cooperate to form a high-frequency shearing motion, which cuts the straw entering the feed port 10. Since the vertical distance between the tooth plates 6 is not more than 10 cm, the length of the cut straw also meets this standard, ensuring the crushing degree of the straw. The chopped straw passes through the gap between each layer of the swing arm 8 and is evenly scattered from the discharge port 3 to the cultivated land in front of the tillage assembly.

[0045] Example 2

[0046] The difference from the above embodiment is that, as shown in the attached Figure 1 、 Figure 3 As shown: the soil turning assembly includes a plurality of first deep sowing shovels 1 and a plurality of second deep sowing shovels 28. The first deep sowing shovels 1 and the second deep sowing shovels 28 each include a shovel arm 22. The bottom end of the shovel arm 22 is bolted to a shovel tip 2. The first deep sowing shovel 1 is bolted to the front of the support frame 14, and the second deep sowing shovel 28 is bolted to the fixed crossbeam 23. The first deep sowing shovel 1 and the second deep sowing shovel 28 are arranged alternately in sequence. The shovel arm 22 of the first deep sowing shovel 1 and the shovel arm 22 of the second deep sowing shovel 28 are each provided with a plurality of equidistant threaded holes for disassembling and adjusting the turning depth of the deep sowing shovel.

[0047] The soil pressing assembly includes a load-bearing bracket 24, which is welded to the support frame 14. An electric cylinder 25 is installed in the middle of the load-bearing bracket 24. The bottom end of the load-bearing bracket 24 is connected to a soil pressing shaft 27 with a bearing. Several soil pressing wheels 26 are welded on the soil pressing shaft 27. The axial position and number of the soil pressing wheels 26 correspond to the first deep plowing shovel 1 and the second deep plowing shovel 28. The tractor 12 is provided with a traction shaft 13 hinged to the support frame 14 near one end of the tractor.

[0048] The specific implementation process is as follows: after the straw shreds are scattered from the discharge port 3 onto the cultivated land in front of the tillage assembly, the first deep loosening shovel 1 and the second deep loosening shovel 28 arranged alternately in the tillage assembly dig into the cultivated land and turn up the soil mixed with the straw shreds. The staggered arrangement ensures that the stress during tillage does not only act on the same plane of the support frame 14, avoiding the occurrence of metal fatigue. After turning over the soil, the soil pressing wheel 26 corresponding to the deep loosening shovel rolls over the traces of turning over the soil, thereby achieving the effect of restoring the flatness of the cultivated land and turning over and pressing the straw shreds deeply.

[0049] When the deep plowing shovel encounters a hard obstacle during the tillage process, causing traction to get stuck, the electric cylinder 25 adjusts the length of the load-bearing bracket 24 and cooperates with the traction shaft 13 in the tractor 12 to lift the support frame 14, allowing the deep plowing shovel to jump over the obstacle, and after lowering the support frame 14, the turning and deep application of straw into the field can continue, reducing the occurrence of unexpected failures and improving the efficiency of straw return to the field.

[0050] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0051] The above is only an embodiment of the present invention. Common knowledge such as the known specific structures and characteristics in the scheme is not described in detail here. Ordinary technicians in the field are aware of all common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the field can improve and implement this scheme in combination with their own abilities under the inspiration given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the field to implement this application. It should be pointed out that for those skilled in the art, without departing from the structure of the present invention, several variations and improvements can be made, which should also be regarded as the scope of protection of the present invention. These will not affect the effect of the implementation of the present invention and the practicality of the patent. The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A straw turning and deep application device for returning straw to fields, characterized by: The invention comprises a support frame (14), a crushing assembly and a tillage assembly being detachably connected to the support frame (14), the crushing assembly being used for cutting and crushing straw, the tillage assembly being used for tilling soil, a tractor (12) being fixedly connected to one end of the support frame (14) close to the tractor, the tractor (12) being used for connecting to the tractor, and a soil compacting assembly being fixedly connected to the other end of the support frame (14), the soil compacting assembly being used for restoring the levelness of cultivated land, a fixed crossbeam (23) being fixedly connected to the portion of the support frame (14) close to the soil compacting assembly, the fixed crossbeam (23) being used for reinforcing the structure of the support frame (14) and connecting part of the tillage assembly; The crushing assembly includes a power cabin (19) and a crushing cabin (4), wherein a motor (21) is provided inside the power cabin (19), an output shaft of the motor (21) is coaxially fixedly connected to an eccentric wheel (18), a side of the eccentric wheel (18) away from the motor (21) is eccentrically fixedly connected to a connecting rod (17), an end of the connecting rod (17) away from the eccentric wheel (18) is slidably sleeved with a sliding groove body (16), the sliding groove body (16) is provided with a vertical sliding groove, a swing rod (11) is fixedly connected to the bottom of the sliding groove body (16), a rectangular opening is provided on the top wall of the crushing cabin (4), and the swing rod (11) passes downward through the rectangular opening and enters the crushing cabin (4); The swing rod (11) in the crushing chamber (4) extends to the bottom wall of the crushing chamber (4), and a plurality of swing beams (9) are fixedly connected to the middle of the swing rod (11) in the crushing chamber (4). The vertical distance between the swing beams (9) is not greater than 10 cm. The swing beams (9) are detachably connected to a plurality of swing arms (8). The end of the swing arm (8) on the same swing beam (9) away from the swing beam (9) is fixedly connected to the same tooth piece (7). The number of the tooth pieces (7) corresponds to the number of the swing beams (9). 7) The bottom is slidably fitted with a tooth plate (6), the lateral ends of the tooth plate (6) are fixedly connected to the two side walls of the crushing chamber (4), the tooth piece (7) and the tooth plate (6) are both provided with a plurality of continuous single-bevel shear teeth on the side away from the swing beam (9), the shearing tooth bevel of the tooth piece (7) faces the side away from the tooth plate (6), and the shearing tooth bevel of the tooth plate (6) faces the side away from the tooth piece (7), the side wall of the crushing chamber (4) close to the traction component is provided with a feed port (10), and the side wall of the crushing chamber (4) away from the traction component is provided with a plurality of discharge ports (3); A plurality of fixed arms (20) are fixedly connected to the top of the power cabin (19), and the fixed arms (20) are all detachably connected to the support frame (14); The lateral ends of the tooth piece (7) are fixedly connected with tooth piece sliders (29), and the tooth piece sliders (29) are slidably matched with tooth piece slide grooves (30), and a plurality of springs (31) are fixedly connected between the tooth piece slide grooves (30) and the side walls of the crushing chamber (4); The inner wall of the power cabin (19) is provided with a power chute (15), which is in sliding cooperation with the sliding chute body (16); the inner wall of the crushing cabin (4) is provided with a swing chute (5), which is in sliding cooperation with the bottom end of the swing rod (11).

2. The straw turning and deep application device for returning straw to the field according to claim 1, characterized in that: The soil turning assembly includes a plurality of first deep loosening shovels (1) and a plurality of second deep loosening shovels (28), wherein the first deep loosening shovels (1) and the second deep loosening shovels (28) both include shovel arms (22), and the bottom ends of the shovel arms (22) are detachably connected to shovel tips (2), the first deep loosening shovels (1) are detachably connected to the front of the support frame (14), and the second deep loosening shovels (28) are detachably connected to the fixed crossbeam (23).

3. The straw turning and deep application device for returning straw to the field according to claim 2, characterized in that: The first deep plowing shovel (1) and the second deep plowing shovel (28) are arranged alternately in sequence.

4. The straw turning and deep application device for returning straw to the field according to claim 3, characterized in that: The fixed arm (20), the shovel arm (22) of the first deep sowing shovel (1), and the shovel arm (22) of the second deep sowing shovel (28) are all provided with a plurality of equidistant threaded holes.

5. The straw turning and deep application device for returning straw to the field according to claim 1, characterized in that: The soil compacting assembly includes a load-bearing bracket (24), which is fixedly connected to the support frame (14), and the bottom end of the load-bearing bracket (24) is rotatably connected to a soil compacting shaft (27), and a plurality of soil compacting wheels (26) are fixedly connected to the soil compacting shaft (27), and the axial position and number of the soil compacting wheels (26) correspond to the first deep loosening shovel (1) and the second deep loosening shovel (28).

6. The straw turning and deep application device for returning straw to the field according to claim 5, characterized in that: An electric cylinder (25) is provided in the middle of the load-bearing bracket (24).

7. The straw turning and deep application device for returning straw to the field according to claim 1, characterized in that: The tractor (12) is provided with a traction shaft (13) hingedly connected to one end of the support frame (14) close to the tractor.

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