Straw turning and pressing deep application device for straw returning to field

Abstract

The invention discloses a straw turning and pressing deep application device for straw returning in the technical field of agricultural machinery, which comprises a support frame, a crushing assembly and a soil turning assembly are detachably connected to the support frame, the crushing assembly is used for cutting and crushing straws, the soil turning assembly is used for turning soil, and a tractor is fixedly connected to one end, close to a tractor, of the support frame. The tractor is used for being connected with a tractor, the other end of the tractor is fixedly connected with a soil pressing assembly, the soil pressing assembly is used for recovering cultivated land flatness, and the portion, close to the soil pressing assembly, of the supporting frame is fixedly connected with a fixing beam which is used for reinforcing the supporting frame structure and is connected with part of the soil turning assembly. The device is simple in structure, straw is smashed through non-rotating-shaft transmission, cultivated land is turned, pressed and deeply applied, the influence of winding and blocking of turned soil and smashed straw on parts is avoided, production and maintenance are convenient, and the device is suitable for wide application and popularization.

Description

Technical Field

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

[0002] The origin of straw return technology can be traced back to the early 20th century. It aims to prevent soil erosion and fertilize farmland. The technical principle of straw return, turning and deep application mainly includes the collection, chopping, turning and deep application of straw. That is, using mechanical equipment to collect straw; chopping straw into appropriate lengths through a chopping device; turning and pressing the chopped straw under the soil through a turning and pressing device; and evenly distributing the straw within a certain depth of the soil through a deep application device. The benefit of this is that after returning the straw to the field, it can be converted into organic fertilizer through biological decomposition, providing sufficient nutrition for plants, thereby improving soil fertility; at the same time, returning straw to the field can increase soil coverage, reduce rainwater erosion of the soil, and effectively prevent soil erosion; returning straw to the field can also reduce the use of fertilizers and pesticides, and reduce agricultural production costs; and returning straw to the field is a way of recycling resources, which helps to reduce the pollution of agricultural waste to the environment and promote the sustainable development of agricultural production.

[0003] At present, a relatively complete technical system has been formed for the straw return to field, turning over and deep application devices, such as crushing rotary tillers and other agricultural machinery with both crushing and turning over functions. However, the high technical and manufacturing costs of straw return machinery have caused difficulties in the application and promotion of straw return machinery. In addition, many straw return machinery adopts a shaft design, such as crushing rotary tillers. During operation, the transmission shaft is easily 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 stuck by soil and straw during operation, has a simple structure and 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 a 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 scheme 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 cultivated land, and 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 soil-turning assembly, and evenly distributes the crushed straw in front of the soil-turning assembly. The soil-turning assembly turns the soil to mix the straw with the soil. The soil pressing assembly behind the soil-turning assembly flattens the turned-up soil to restore the flatness of the cultivated land and ensure the deep application effect of the straw.

[0008] The beneficial effects of the basic scheme 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 crushed 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 closely 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 pressing assembly. When the soil turning assembly encounters objects that are difficult to turn over, such as stones, the soil pressing 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 work efficiency of deep soil turning.

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

[0013] The swing rod in the crushing chamber extends to the bottom wall of the crushing chamber, and a plurality of swing beams are fixedly connected to the middle part of the swing rod in the crushing chamber, and the vertical distance between the swing beams is not more than 10 cm. A plurality of swing arms are detachably connected to the swing beams, and the end of the swing arm on the same swing beam away from the swing beam is fixedly connected to the same tooth piece, and the number of tooth pieces corresponds to the number of swing beams. The bottom of the tooth piece is slidably matched 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 plurality 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 inclined surface of the tooth piece shearing teeth faces the side away from the tooth plate, and the inclined surface of the tooth plate shearing teeth 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 plurality of discharge ports are provided on the side wall of the crushing chamber away from the traction assembly;

[0014] A plurality 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 groove, and the gear pieces are driven to slide 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 compartment 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 pieces are fixedly connected with tooth piece sliders, the tooth piece sliders are slidably matched with tooth piece sliding grooves, and a plurality 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 cabin wall during the lateral swing process, causing mechanical failure and economic losses, and because the swing arm and the swing beam are detachably connected, 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 provided 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 provided 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 slide and the swing slide, 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 a plurality of first deep sowing shovels and a plurality of second deep sowing shovels. The first deep sowing shovels and the second deep sowing shovels both include shovel arms. The bottom ends of the shovel arms are detachably connected with shovel tips. The first deep sowing shovels are detachably connected to the front of the support frame, and the second deep sowing shovels are detachably connected to the fixed beam.

[0021] The beneficial effects of the basic solution are: deep tillage of cultivated land can be achieved by using a deep loosening shovel, reducing the use of shaft transmission, enhancing operational stability and reliability, streamlining the mechanical structure, reducing 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 soil turning can be improved, the efficiency and effect of deep application of straw during soil turning can be improved, and the double-row deep tillage shovel arrangement 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 that by adjusting the fixed threaded holes, the height of the crushing assembly and the soil turning assembly can be adjusted, thereby adjusting the stubble height and soil turning depth of the straw crushing during the straw return and deep application process, 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 plurality 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 returning 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 returning the straw to the field.

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

[0029] The beneficial effect of the basic solution is: by adjusting the length of the load-bearing bracket through the electric cylinder, the height of the support frame 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 deep apply the soil after lowering the support frame, 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 in conjunction 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 It is an axonometric view of an embodiment of a straw turning and compacting deep application device for returning straw to fields according to the present invention.

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

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

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

[0036] Figure 5 The invention discloses a side cross-sectional view of a crushing assembly of an embodiment of a straw turning and deep application device for returning straw to fields according to the present invention.

[0037] The figure marks in the drawings of the specification include: 1. first deep tillage shovel; 2. shovel tip; 3. discharge port; 4. crushing chamber; 5. swing chute; 6. tooth plate; 7. tooth piece; 8. swing arm; 9. swing beam; 10. feed port; 11. swing rod; 12. traction device; 13. traction shaft; 14. support frame; 15. power chute; 16. sliding trough body; 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 tillage shovel; 29. ​​tooth piece slider; 30. tooth piece 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, on which a crushing assembly and a tilling assembly are bolted, the crushing assembly is used to cut and crush the straw, and the tilling assembly is used to till the soil, a tractor 12 is welded at one end of the support frame 14 close to the tractor, the tractor 12 is used to connect to the tractor, and a soil compacting assembly is welded at the other end, the soil compacting assembly is used to restore the flatness of the cultivated land, and a fixed crossbeam 23 is welded at the part of the support frame 14 close to the soil compacting assembly, the fixed crossbeam 23 is used to reinforce the structure of the support frame 14 and connect part of the tilling 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 one 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, and a plurality 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 plurality of swing arms 8 are bolted to the swing beams 9. The swing arms 8 on the same swing beam 9 are 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 moving crossbeam 9, the shear tooth bevel of the tooth piece 7 faces the side away from the tooth plate 6, the shear tooth bevel of the tooth plate 6 faces the side away from the tooth piece 7, tooth piece sliders 29 are welded at both lateral ends of the tooth piece 7, the tooth piece sliders 29 are slidably matched with tooth piece slide grooves 30, a plurality of springs 31 are welded between the tooth piece slide grooves 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 groove 15 is opened on the inner wall of the power cabin 19, and the power slide groove 15 slides with the sliding groove body 16; a swing slide groove 5 is opened on the inner wall of the crushing cabin 4, and the swing slide groove 5 slides with the bottom end of the swing rod 11. A plurality of fixed arms 20 are welded on the top of the power cabin 19. The fixed arms 20 are each provided with a plurality of equidistant threaded holes for disassembling and adjusting the overall height of the crushing assembly. The fixed arms 20 are each 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 starts, the motor 21 rotates to drive the eccentric wheel 18 to rotate, and the connecting rod 17 moves radially. 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 single-slope shearing space matched with the tooth piece 7 at the front end of the tooth plate 6 forms a high-frequency shearing movement, and the straw entering the feed port 10 is cut off. 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 cut straw passes through the gap between each layer of the swing arm 8 and is evenly sprinkled from the discharge port 3 onto the cultivated land in front of the soil-turning 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 loosening shovels 1 and a plurality of second deep loosening shovels 28, the first deep loosening shovels 1 and the second deep loosening shovels 28 both include shovel arms 22, the bottom ends of the shovel arms 22 are both bolted with shovel tips 2, the first deep loosening shovel 1 is bolted to the front of the support frame 14, the second deep loosening shovel 28 is bolted to the fixed crossbeam 23, the first deep loosening shovel 1 and the second deep loosening shovel 28 are alternately arranged in sequence, the shovel arms 22 of the first deep loosening shovel 1 and the shovel arms 22 of the second deep loosening shovel 28 are both provided with a plurality of equidistant threaded holes for disassembling and adjusting the soil turning depth of the deep loosening shovels;

[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. A plurality of soil pressing wheels 26 are welded to 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 close to one end of the tractor.

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

[0049] When the deep tillage shovel encounters a hard obstacle during tillage and causes traction jam, the length of the load-bearing bracket 24 can be adjusted by the electric cylinder 25 to cooperate with the traction shaft 13 in the traction device 12 to lift the support frame 14, allowing the deep tillage shovel to jump over the obstacle, and after lowering the support frame 14, the deep tillage and pressing work of returning the straw to the field can be continued, thereby reducing the occurrence of unexpected failures and improving the efficiency of returning the straw to the field.

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

[0051] The above is only an embodiment of the present invention. The common sense such as the known specific structure and characteristics in the scheme is not described in detail here. The ordinary technicians in the relevant field know all the common technical knowledge in the technical field of the invention before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply the conventional experimental means before that date. The ordinary technicians in the relevant field can improve and implement this scheme in combination with their own abilities under the enlightenment given by this application. Some typical known structures or known methods should not become obstacles for ordinary technicians in the relevant 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 deformations and improvements can be made, which should also be regarded as the protection scope of the present invention, which will not affect the effect of the implementation of the present invention and the practicality of the patent. The protection scope 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 the field, characterized in that: The invention comprises a support frame (14), to which a crushing assembly and a tilling assembly are detachably connected, the crushing assembly being used for cutting and crushing straw, and the tilling assembly being used for tilling soil; one end of the support frame (14) close to the tractor is fixedly connected to a tractor (12), the tractor (12) being used for connecting to the tractor, and the other end is fixedly connected to a soil compacting assembly, the soil compacting assembly being used for restoring the flatness of cultivated land; a portion of the support frame (14) close to the soil compacting assembly is fixedly connected to a fixed crossbeam (23), the fixed crossbeam (23) being used for reinforcing the structure of the support frame (14) and connecting part of the tilling assembly.

2. The straw turning and pressing deep application device for returning straw to the field according to claim 1, characterized in that: The crushing assembly comprises a power cabin (19) and a crushing cabin (4), wherein a motor (21) is arranged inside the power cabin (19), wherein an output shaft of the motor (21) is coaxially fixedly connected to an eccentric wheel (18), wherein a side of the eccentric wheel (18) away from the motor (21) is eccentrically fixedly connected to a connecting rod (17), wherein an end of the connecting rod (17) away from the eccentric wheel (18) is slidably sleeved with a sliding groove body (16), wherein the sliding groove body (16) is provided with a vertical sliding groove, wherein a swinging rod (11) is fixedly connected to the bottom of the sliding groove body (16), wherein a rectangular opening is provided on the top wall of the crushing cabin (4), and the swinging 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 inner bottom wall of the crushing chamber (4), 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 more than 10 cm, a plurality of swing arms (8) are detachably connected to the swing beams (9), and 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), and the tooth pieces ( 7) are slidably matched with tooth plates (6) at the bottom, the lateral ends of the tooth plates (6) are fixedly connected to the two side walls of the crushing chamber (4), the tooth pieces (7) and the side of the tooth plates (6) away from the swinging cross beam (9) are both provided with a plurality of continuous single-bevel shearing teeth, the shearing tooth bevel of the tooth pieces (7) faces the side away from the tooth plates (6), the shearing tooth bevel of the tooth plates (6) faces the side away from the tooth pieces (7), the side wall of the crushing chamber (4) close to the traction assembly is provided with a feed port (10), and the side wall of the crushing chamber (4) away from the traction assembly 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 detachably connected to the support frame (14).

3. The straw turning and deep application device for returning straw to the field according to claim 2, characterized in that: The transverse ends of the tooth piece (7) are fixedly connected with tooth piece sliders (29), 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).

4. The straw turning and deep application device for returning straw to the field according to claim 2, characterized in that: The inner wall of the power cabin (19) is provided with a power slide groove (15), which is slidably matched with the slide groove body (16); the inner wall of the crushing cabin (4) is provided with a swing slide groove (5), which is slidably matched with the bottom end of the swing rod (11).

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

6. The straw turning and deep application device for returning straw to the field according to claim 5, characterized in that: The first deep tilling shovel (1) and the second deep tilling shovel (28) are arranged alternately in sequence.

7. The straw turning and deep application device for returning straw to the field according to claim 5, characterized in that: The fixed arm (20), the shovel arm (22) of the first deep plowing shovel (1) and the shovel arm (22) of the second deep plowing shovel (28) are all provided with a plurality of equidistant threaded holes.

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

9. The straw turning and deep application device for returning straw to the field according to claim 8, characterized in that: An electric cylinder (25) is provided in the middle of the load-bearing bracket (24).

10. 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) which is hinged to one end of the support frame (14) close to the tractor.

Images