Straw crushing and returning machine capable of uniformly spreading straw powder

Abstract

The straw smashing and returning machine comprises a mounting base, a soil turning and covering mechanism is arranged in the middle of the mounting base, a root removing assembly is arranged at the lower end of one side of a storage box arranged at the lower end of one side of the mounting base, and a clamping assembly is arranged at the lower end of one side of a smashing box arranged above the storage box; and a first crushing assembly is arranged above a discharging opening formed in the position, located on one side of the mounting base, in the crushing box, and the first crushing assembly is connected with a second crushing assembly and a third crushing assembly which are arranged in the storage box through a driving mechanism. According to the straw smashing and returning machine capable of uniformly spreading the straw powder, smashed straw is conveniently killed through the dryer, the influence of insect pests on the land is prevented, then the soil turning and covering mechanism and the discharging assembly are matched for use, soil turning on the land is facilitated, the smashed straw is uniformly distributed in the land, then covering is conducted, and the straw smashing and returning machine capable of uniformly spreading the straw powder is convenient to use. The straw powder is in full contact with the soil, and the use effect is improved.

Description

Technical Field

[0001] The invention relates to the technical field related to straw crushing, and in particular to a straw crushing and returning machine for fields which can evenly spread straw powder. Background Art

[0002] In agricultural production, after the harvest of crops, the work is to remove the straw in the farmland to prepare for the planting of later crops. For example, cotton stalks or corn stalks are traditionally removed by hand, and the removed straw is placed on the farmland and burned in the wild, causing serious air pollution. Therefore, the country is vigorously promoting the crushing of straw and returning it to the field, so as to achieve the purpose of reducing pollution and improving farmland soil.

[0003] After searching, it was found that a typical crushing and returning machine in the prior art is such as the one with publication number CN209497941U, which is a straw crushing and returning machine, including a frame assembly, a three-point suspension frame assembly, a crushed straw scattering guide plate assembly and a depth limiting support roller assembly. A ∏-type safety guard frame assembly is installed on the rear side of the frame assembly, between the rear lower side of the crushed straw scattering guide plate assembly and the upper side of the depth limiting support roller assembly. The rear end portion of the ∏-type safety guard frame assembly is located on the rear outside of the rear end portion of the depth limiting support roller assembly in the longitudinal direction of the machine, and the lateral width dimension of the ∏-type safety guard frame assembly is greater than the axial length dimension of the depth limiting support roller assembly.

[0004] To sum up, when the existing pulverizing and returning machines are in use, the straw is usually cut and crushed and then covered on the soil surface, and the dispersion is poor. The straw fragments cannot fully contact the soil, and the use effect is poor. At the same time, since the straw is in a standing state during crushing, it is easy to cause the crushing effect to be poor, and it is not easy to take the roots of the straw out of the ground for crushing. In view of the above problems, the existing equipment needs to be improved. Summary of the invention

[0005] The object of the present invention is to provide a straw crushing and returning machine that evenly spreads straw powder, so as to solve the problem that the existing crushing and returning machine proposed in the above background technology, when in use, usually covers the surface of the soil after the straw is cut and crushed, and has poor dispersion. The straw powder cannot fully contact the soil, resulting in poor use effect. At the same time, since the straw is in a standing state during crushing, it is easy to cause poor crushing effect during crushing, and it is not easy to take the roots of the straw out of the ground for crushing.

[0006] To achieve the above object, the present invention provides the following technical solution: a straw crushing and returning machine for evenly spreading straw powder, comprising a mounting base,

[0007] A soil turning and covering mechanism is provided in the middle of the mounting base, and a storage box is provided at the lower end of one side of the mounting base, and a supporting roller is provided in the middle of the bottom of the lower end of the storage box, a rooting assembly is provided at the lower end of the storage box away from the soil turning and covering mechanism, and a crushing box is provided above the storage box, and a clamping assembly is provided at the lower end of one side of the crushing box, a guide baffle is provided inside the crushing box at one side of the clamping assembly, and a first crushing assembly is provided above the discharge opening opened on one side of the mounting base inside the crushing box, and the first crushing assembly is connected with the second crushing assembly and the third crushing assembly arranged inside the storage box through a driving mechanism, a mounting bracket is provided at the upper end of the crushing box, and the lower end of the outer side of the mounting bracket is connected to one side of the crushing box through a symmetrically arranged support rod, and the lower end of the mounting bracket is connected to a correspondingly arranged second electric claw clamp through an electric linear guide, the storage box is connected to the discharging assembly close to the soil turning and covering mechanism, and the discharging assembly is installed in the middle of the upper end of the soil turning and covering mechanism.

[0008] Preferably, a plurality of mounting blocks are arranged on the other side of the upper end of the mounting base, and an electric control device is arranged on the upper end of the mounting base close to the mounting block. Meanwhile, a movable wheel is arranged on the lower end of the mounting base located on the side of the mounting block. A dryer is arranged inside the upper end of the mounting base close to the discharge port, and the discharge port and the dryer are respectively located on both sides of the upper end of the storage box.

[0009] Preferably, the soil turning and covering mechanism includes a positioning frame, and two positioning frames are symmetrically arranged, and electric hydraulic cylinders are symmetrically arranged on the two positioning frames, and the output ends of the electric hydraulic cylinders pass through the mounting base and are connected to the upper ends of the corresponding lifting frames, and connecting shafts are arranged in the middle of the two lifting frames, and soil turning rollers and soil covering rollers are respectively arranged on the outsides of the two connecting shafts, and the front sides of the two lifting frames are connected by a protective cover, and a connecting chain is arranged on the inside of the protective cover, and the inner sides of both ends of the connecting chain are meshed and connected with sprockets arranged on the outsides of the two connecting shafts, and one end of one of the connecting shafts passes through the protective cover and is connected to the output end of the rotating motor.

[0010] Preferably, the root removal component includes a plug connector, and a plurality of plug connectors are equidistantly arranged, and the plug connector is a U-shaped structure, one end of the plurality of plug connectors are equidistantly arranged on the first rotating shaft, and both ends of the first rotating shaft are connected to the storage box through a mounting frame, and a rotating gear is arranged on the outer side of one end of the first rotating shaft, and a transmission gear is meshed and connected to the storage box through a positioning plate at the upper end of the rotating gear, and the transmission gear is connected to the storage box through a positioning plate, and one end of the transmission gear passes through the positioning plate and is connected to a transmission disk, and a connecting belt is arranged on the outer side of the transmission disk.

[0011] Preferably, the clamping assembly includes a driving motor, a rotating frame and a first electric claw clamp, and the output end of the driving motor is connected to one end of the rotating frame, and the rotating frame is located at the lower end of the crushing box, and a plurality of first electric claw clamps are equidistantly arranged on the rotating frame, and a rotating disk is arranged outside the output end of the driving motor, and the rotating disk is connected to the other end of the connecting belt.

[0012] Preferably, the position of the first electric claw clamp is arranged in one-to-one correspondence with the position of the plug connector, and the position of the first electric claw clamp is arranged in one-to-one correspondence with the position of the second electric claw clamp.

[0013] Preferably, the driving mechanism includes a bidirectional motor, a first transmission assembly and a second transmission assembly, and the output end of one side of the bidirectional motor is connected to the first crushing assembly through the first transmission assembly, and the output end of the other side of the bidirectional motor is connected to the third transmission assembly through the second transmission assembly, and the third transmission assembly is connected to the second crushing assembly and the outer side of one end of the third crushing assembly through the fourth transmission assembly.

[0014] Preferably, the first transmission assembly includes a bevel gear set and a positioning shaft, and one end of the positioning shaft is connected to the bevel gear set, while the other end of the positioning shaft passes through the crushing box and is connected to one side of the connecting rotating assembly. The second transmission assembly, the third transmission assembly and the fourth transmission assembly have the same structure, and the second transmission assembly, the third transmission assembly and the fourth transmission assembly are composed of two pulleys and a transmission belt.

[0015] Preferably, the discharging assembly includes a suction fan, a conveying pipe and a discharge pipe, the suction fan is provided with a conveying pipe and a discharge pipe, and the discharge pipe is connected to one side of a material distribution box, and the material distribution box is connected to the lower end of the mounting base through a symmetrically arranged fixed side plate, a material discharge grid plate is provided at the lower end of the interior of the material distribution box, and a material guide plate is provided on one side below a material distribution port opened in the material discharge grid plate, and a partition plate is provided between adjacent material guide plates.

[0016] Compared with the prior art, the beneficial effects of the present invention are: the straw crushing and returning machine for field that evenly spreads straw powder,

[0017] (1) In order to solve the problem that the existing pulverizing and returning machine to the soil usually covers the surface of the soil after cutting and pulverizing the straw, and has poor dispersion, the straw fragments cannot fully contact the soil, and the use effect is poor, the present application is provided with a soil turning and covering mechanism, a discharging assembly and a dryer. Through the dryer, it is convenient to disinfect the pulverized straw to prevent pests from affecting the land. Then, the soil turning and covering mechanism and the discharging assembly are used together to turn the land, so that the pulverized straw is evenly distributed inside the land, and then the soil is covered so that the straw fragments are fully in contact with the soil, thereby improving the use effect;

[0018] (2) In order to solve the problem that the existing pulverizing and returning machines are in use, the straw is in a standing state, which easily leads to poor crushing effect during crushing and it is difficult to take the root of the straw out of the ground for crushing, the present application uses a rooting component and a clamping component in combination to facilitate clamping and fixing the straw, and then allows the rooting component to take the root of the straw out of the ground, and then rotates the first electric claw clamp to make the straw horizontally placed and contact with the second electric claw clamp, and the electric linear guide drives the second electric claw clamp to move the straw to be moved, transported and crushed, thereby improving the crushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the front cross-sectional structure of the present invention;

[0020] Figure 2 It is a front view structural schematic diagram of the present invention;

[0021] Figure 3 For the present invention Figure 2 The enlarged structural diagram at A in the middle;

[0022] Figure 4 For the present invention Figure 2 The enlarged structural diagram at B in the middle;

[0023] Figure 5 This is a schematic diagram of the front view of the soil turning and covering mechanism of the present invention;

[0024] Figure 6 It is a rear structural schematic diagram of the soil turning and covering mechanism of the present invention;

[0025] Figure 7 This is a schematic diagram of the front cross-sectional structure of the discharging assembly of the present invention;

[0026] Figure 8 It is a rear view structural schematic diagram of the present invention.

[0027] In the figure: 1. mounting base; 101. mounting block; 102. feeding port; 103. drying device; 2. electric control device; 3. moving wheel; 4. soil turning and covering mechanism; 401. positioning frame; 402. electric hydraulic cylinder; 403. lifting frame; 404. protective cover; 405. connecting shaft; 406. soil turning roller; 407. soil covering roller; 408. connecting chain; 409. rotating motor; 5. storage box; 6. supporting roller; 7. root removal component; 701. plug connector; 702. first rotating shaft; 703. mounting frame; 704. rotating gear; 705. transmission gear; 706. positioning plate; 707. transmission disk; 708. connecting belt; 8. crushing box; 801. guide baffle; 9. clamping component; 901, driving motor; 902, rotating frame; 903, first electric claw clamp; 10, driving mechanism; 1001, bidirectional motor; 1002, first transmission assembly; 1003, second transmission assembly; 1004, third transmission assembly; 1005, fourth transmission assembly; 11, first crushing assembly; 12, second crushing assembly; 13, third crushing assembly; 14, mounting bracket; 15, support rod; 16, electric linear guide; 17, second electric claw clamp; 18, discharging assembly; 1801, suction fan; 1802, conveying pipe; 1803, discharge pipe; 1804, material distribution box; 1805, fixed side plate; 1806, unloading grid plate; 1807, material guide plate; 1808, partition plate. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0029] See also Figure 1-8 The present invention provides a technical solution: a straw crushing and returning machine for field that evenly spreads straw powder, according to Figure 1 , Figure 2 , Figure 5 , Figure 6 and Figure 8As shown, a soil turning and covering mechanism 4 is arranged in the middle of the mounting base 1, and the soil turning and covering mechanism 4 includes a positioning frame 401, and two positioning frames 401 are symmetrically arranged, and electric hydraulic cylinders 402 are symmetrically arranged on the two positioning frames 401, and the output end of the electric hydraulic cylinder 402 passes through the mounting base 1 and is connected with the upper end of the corresponding lifting frame 403, and a connecting shaft 405 is arranged in the middle of the two lifting frames 403, and a soil turning roller 406 and a soil covering roller 407 are respectively arranged on the outside of the two connecting shafts 405, and the front sides of the two lifting frames 403 are connected by a protective cover 404, and a connecting chain 408 is arranged on the inside of the protective cover 404, and the inner sides of both ends of the connecting chain 408 are meshed and connected with the sprockets arranged on the outside of the two connecting shafts 405, and one end of one of the connecting shafts 405 passes through the protective cover 404 and is connected to the output end of the rotating motor 409, through the soil turning and covering mechanism 4 The soil mechanism 4 is convenient for turning the land, so that the crushed straw is evenly covered inside the land, and then covered with soil, so that the crushed straw is fully integrated with the land, thereby improving the effect of returning the land to the field. A plurality of mounting blocks 101 are arranged on the other side of the upper end of the mounting base 1. Through the mounting blocks 101, it is convenient to install and connect with other mobile equipment, and an electric control device 2 is arranged on the upper end of the mounting base 1 close to the mounting block 101. At the same time, a moving wheel 3 is arranged on the lower end of the mounting base 1 located on the side of the mounting block 101. A dryer 103 is arranged inside the upper end of the mounting base 1 close to the discharge port 102, and the discharge port 102 and the dryer 103 are respectively located on both sides of the upper end of the storage box 5. Through the dryer 103, the temperature inside the storage box 5 is relatively high, thereby disinfecting the insect eggs and pests in the crushed straw, so that the land is not easily damaged when the straw is returned to the field.

[0030] When in use, the electric hydraulic cylinder 402 is started to push the lifting frame 403 downward, so that the soil-turning roller 406 and the soil-covering roller 407 contact the ground and penetrate into the soil. Then the rotating motor 409 is started, and the connecting shaft 405 is driven to rotate by the rotating motor 409, so that the connecting shaft 405 synchronously drives the soil-turning roller 406 and the soil-covering roller 407 to rotate through the sprocket and the connecting chain 408, so as to turn the soil and cover the soil, thereby improving the practicality of use.

[0031] according to Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 8As shown, a storage box 5 is arranged at the lower end of one side of the installation base 1, and a supporting roller 6 is arranged in the middle of the bottom of the lower end of the storage box 5. A root removal component 7 is arranged at the lower end of the storage box 5 away from the soil turning and covering mechanism 4. The root removal component 7 includes a plug connector 701, and a plurality of plug connectors 701 are arranged at equal distances. At the same time, the plug connector 701 is a U-shaped structure, and one end of the plurality of plug connectors 701 is arranged at equal distances on the first rotating shaft 702, and the two ends of the first rotating shaft 702 are connected to the storage box 5 through the mounting frame 703. At the same time, a rotating gear 704 is arranged on the outer side of one end of the first rotating shaft 702, and a transmission gear 705 is meshed and connected to the upper end of the rotating gear 704, and the transmission gear 705 is connected to the storage box 5 through a positioning plate 706. At the same time, one end of the transmission gear 705 penetrates the positioning plate 706 and is connected to a transmission disk 707, and a connecting belt 708 is arranged on the outer side of the transmission disk 707. Part 7 is convenient for separating the roots of the straw from the soil, and a crushing box 8 is arranged above the storage box 5, and a clamping assembly 9 is arranged at the lower end of one side of the crushing box 8, the clamping assembly 9 comprises a driving motor 901, a rotating frame 902 and a first electric claw clamp 903, and the output end of the driving motor 901 is connected to one end of the rotating frame 902, and the rotating frame 902 is located at the lower end inside the crushing box 8, and a plurality of first electric claw clamps 903 are equidistantly arranged on the rotating frame 902, the position of the first electric claw clamp 903 is arranged in a one-to-one correspondence with the position of the plug connector 701, and the position of the first electric claw clamp 903 is arranged in a one-to-one correspondence with the position of the second electric claw clamp 17, a rotating disk is arranged on the outer side of the output end of the driving motor 901, and the rotating disk is connected to the other end of the connecting belt 708, through the clamping assembly 9, it is convenient to position and rotate the straw for feeding, and the crushing effect is improved.

[0032] During use, the driving motor 901 drives the rotating disk and the rotating frame 902 to rotate, so that the rotating frame 902 drives the first electric claw clamp 903 to tilt downward, and at the same time, the rotating disk drives the transmission disk 707 and the transmission gear 705 to rotate synchronously through the connecting belt 708, and then the transmission gear 705 drives the rotating gear 704, the first rotating shaft 702 and the plug connector 701 to rotate downward and insert into the root of the straw, and then the first electric claw clamp 903 is started, so that the first electric claw clamp 903 clamps and fixes the straw, and then the driving motor 901 drives the rotating disk and the rotating frame 902 to rotate in the opposite direction, so that the rotating frame 902 drives the first electric claw clamp 903 to rotate upward, and at the same time, the rotating disk drives the transmission disk 707 and the transmission gear 705 to rotate synchronously through the connecting belt 708, and then the transmission gear 705 drives the rotating gear 704, the first rotating shaft 702 and the plug connector 701 to rotate upward, and the root of the straw is lifted from the ground until the straw and the mounting base 1 are horizontally placed, thereby facilitating the feeding and crushing of the straw.

[0033] according to Figure 1 , Figure 2 and Figure 8 As shown, a guide baffle 801 is provided inside the crushing box 8 at one side of the clamping assembly 9, and a first crushing assembly 11 is provided inside the crushing box 8 above a feed opening 102 opened at one side of the mounting base 1, and the first crushing assembly 11 is connected to a second crushing assembly 12 and a third crushing assembly 13 provided inside the storage box 5 through a driving mechanism 10, the driving mechanism 10 includes a bidirectional motor 1001, a first transmission assembly 1002 and a second transmission assembly 1003, and an output end on one side of the bidirectional motor 1001 is connected to the first crushing assembly 11 through the first transmission assembly 1002, and an output end on the other side of the bidirectional motor 1001 is connected to the third transmission assembly 1004 through the second transmission assembly 1003, and the third transmission assembly 1004 is connected to the outer sides of one end of the second crushing assembly 12 and the third crushing assembly 13 through the fourth transmission assembly 1005, and the first The transmission component 1002 includes a bevel gear set and a positioning shaft, and one end of the positioning shaft is connected to the bevel gear set, and the other end of the positioning shaft passes through the crushing box 8 and is connected to one side of the connecting rotating component. The second transmission component 1003, the third transmission component 1004 and the fourth transmission component 1005 have the same structure, and the second transmission component 1003, the third transmission component 1004 and the fourth transmission component 1005 are composed of two pulleys and a transmission belt. A mounting bracket 14 is provided at the upper end of the crushing box 8, and the lower end of the outer side of the mounting bracket 14 is connected to one side of the crushing box 8 through a symmetrically arranged support rod 15. At the same time, the lower end of the mounting bracket 14 is connected to a correspondingly arranged second electric claw clamp 17 through an electric linear guide 16. The second electric claw clamp 17 is driven to move by the electric linear guide 16, which is convenient for clamping and conveying horizontally placed straw, so that the straw is contacted and crushed with the first crushing component 11.

[0034] When in use, start the second electric claw clamp 17 to grab the horizontally placed straw, then separate the first electric claw clamp 903 from the straw, then start the electric linear guide 16 to drive the second electric claw clamp 17 to move, and transport the straw to the inside of the crushing box 8 to contact the first crushing component 11, then start the bidirectional motor 1001 to drive the first transmission component 1002 and the first crushing component 11 to rotate, so that the first crushing component 11 crushes the straw, and at the same time, the crushed straw enters the storage box 5 through the discharge port 102 and contacts the second crushing component 12 and the third crushing component 13, and then the bidirectional motor 1001 drives the second crushing component 12 and the third crushing component 13 to rotate through the second transmission component 1003, the third transmission component 1004 and the fourth transmission component 1005, and crushes the straw inside the storage box 5 again to improve the crushing effect.

[0035] according to Figure 1 , Figure 2 , Figure 7 and Figure 8As shown, the storage box 5 is connected to the discharge assembly 18 on one side close to the soil turning and covering mechanism 4, and the discharge assembly 18 is installed in the middle of the upper end of the soil turning and covering mechanism 4, and the discharge assembly 18 comprises a suction fan 1801, a conveying pipe 1802 and a discharge pipe 1803, the suction fan 1801 is provided with a conveying pipe 1802 and a discharge pipe 1803, and the discharge pipe 1803 is connected to one side of a distribution box 1804, and the distribution box 1804 is connected to the lower end of the mounting base 1 through a symmetrically arranged fixed side plate 1805, a distribution box 1804 is provided with a discharge grid plate 1806 at the lower end thereof, and a material guide plate 1807 is provided on one side below the distribution port opened in the discharge grid plate 1806, and a partition plate 1808 is provided between adjacently arranged material guide plates 1807.

[0036] When in use, the straw powder inside the storage box 5 is transported to the inside of the distribution box 1804 through the conveying pipe 1802 and the discharge pipe 1803 by the suction fan 1801, and then the straw powder is evenly discharged onto the guide plate 1807 through the distribution port opened in the unloading grid plate 1806 under the action of the airflow, and then evenly covered on the ground after turning over by the guide plate 1807, thereby improving the fusion effect of the straw powder and the soil.

[0037] The directions or positional relationships indicated by terms such as "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" are based on the directions or positional relationships shown in the accompanying drawings. They are merely simplified descriptions for the convenience of describing the present invention, and do not indicate or imply that the devices or elements referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the protection content of the present invention.

[0038] Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A straw crushing and returning machine for evenly spreading straw powder, comprising a mounting base (1), characterized in that: A soil turning and covering mechanism (4) is arranged in the middle of the installation base (1), and a storage box (5) is arranged at the lower end of one side of the installation base (1), and a supporting roller (6) is arranged in the middle of the bottom of the lower end of the storage box (5), and a root removal component (7) is arranged at the lower end of the storage box (5) away from the soil turning and covering mechanism (4), and a crushing box (8) is arranged above the storage box (5), and a clamping component (9) is arranged at the lower end of one side of the crushing box (8), and a guide baffle (801) is arranged inside the crushing box (8) on one side of the clamping component (9), and a first crushing component (102) is arranged inside the crushing box (8) above the feeding opening (102) opened on one side of the installation base (1). 11), and at the same time, the first crushing assembly (11) is connected to the second crushing assembly (12) and the third crushing assembly (13) arranged inside the storage box (5) through a driving mechanism (10); the upper end of the crushing box (8) is provided with a mounting bracket (14), and the lower end of the outer side of the mounting bracket (14) is connected to one side of the crushing box (8) through a symmetrically arranged support rod (15); at the same time, the lower end of the mounting bracket (14) is connected to a correspondingly arranged second electric claw clamp (17) through an electric linear guide rail (16); the storage box (5) is connected to a discharge assembly (18) near the soil turning and covering mechanism (4), and the discharge assembly (18) is installed in the middle of the upper end of the soil turning and covering mechanism (4).

2. The straw crushing and returning machine for field that evenly spreads straw powder as claimed in claim 1, characterized in that: A plurality of mounting blocks (101) are arranged on the other side of the upper end of the mounting base (1), and an electric control device (2) is arranged on the side of the upper end of the mounting base (1) close to the mounting block (101). Meanwhile, a movable wheel (3) is arranged on the lower end of the mounting base (1) located on the side of the mounting block (101). A dryer (103) is arranged inside the side of the upper end of the mounting base (1) close to the discharge port (102), and the discharge port (102) and the dryer (103) are respectively located on both sides of the upper end of the storage box (5).

3. The straw crushing and returning machine for field that evenly spreads straw powder as claimed in claim 1, characterized in that: The soil turning and covering mechanism (4) comprises a positioning frame (401), and two positioning frames (401) are symmetrically arranged. At the same time, electric hydraulic cylinders (402) are symmetrically arranged on the two positioning frames (401). The output end of the electric hydraulic cylinder (402) passes through the mounting base (1) and is connected to the upper end of the corresponding lifting frame (403). A connecting shaft (405) is arranged in the middle of the two lifting frames (403). At the same time, a soil turning roller (406) and a soil covering roller (407) are respectively arranged on the outside of the two connecting shafts (405). The front sides of the two lifting frames (403) are connected by a protective cover (404), and a connecting chain (408) is arranged on the inside of the protective cover (404). At the same time, the inner sides of both ends of the connecting chain (408) are meshed and connected with sprockets arranged on the outside of the two connecting shafts (405). One end of one of the connecting shafts (405) passes through the protective cover (404) and is connected to the output end of the rotating motor (409).

4. The straw crushing and returning machine for field that evenly spreads straw powder as claimed in claim 1, characterized in that: The root removal component (7) comprises a plug connector (701), and a plurality of the plug connectors (701) are arranged at equal intervals. The plug connector (701) is a U-shaped structure. One end of the plurality of plug connectors (701) is arranged at equal intervals on a first rotating shaft (702), and both ends of the first rotating shaft (702) are connected to a storage box (5) through a mounting frame (703). A rotating gear (704) is arranged on the outer side of one end of the first rotating shaft (702), and a transmission gear (705) is meshedly connected to the upper end of the rotating gear (704), and the transmission gear (705) is connected to the storage box (5) through a positioning plate (706). One end of the transmission gear (705) passes through the positioning plate (706) and is connected to a transmission disk (707), and a connecting belt (708) is arranged on the outer side of the transmission disk (707).

5. The straw crushing and returning machine for field that evenly spreads straw powder as claimed in claim 1, characterized in that: The clamping assembly (9) comprises a driving motor (901), a rotating frame (902) and a first electric claw clamp (903), and the output end of the driving motor (901) is connected to one end of the rotating frame (902), and the rotating frame (902) is located at the lower end inside the crushing box (8), and a plurality of first electric claw clamps (903) are equidistantly arranged on the rotating frame (902), and a rotating disk is arranged outside the output end of the driving motor (901), and the rotating disk is connected to the other end of the connecting belt (708).

6. The straw crushing and returning machine for field that evenly spreads straw powder as claimed in claim 5, characterized in that: The position of the first electric claw clamp (903) is set in a one-to-one correspondence with the position of the plug connector (701), and the position of the first electric claw clamp (903) is set in a one-to-one correspondence with the position of the second electric claw clamp (17).

7. The straw crushing and returning machine for field that evenly spreads straw powder as claimed in claim 1, characterized in that: The driving mechanism (10) comprises a bidirectional motor (1001), a first transmission assembly (1002) and a second transmission assembly (1003), wherein the output end on one side of the bidirectional motor (1001) is connected to the first crushing assembly (11) via the first transmission assembly (1002), while the output end on the other side of the bidirectional motor (1001) is connected to the third transmission assembly (1004) via the second transmission assembly (1003), and the third transmission assembly (1004) is connected to the outer sides of one end of the second crushing assembly (12) and the third crushing assembly (13) via a fourth transmission assembly (1005).

8. The straw crushing and returning machine for fields that evenly spreads straw powder as claimed in claim 7, characterized in that: The first transmission component (1002) comprises a bevel gear set and a positioning shaft, and one end of the positioning shaft is connected to the bevel gear set, while the other end of the positioning shaft passes through the crushing box (8) and is connected to one side of the connecting rotating component. The second transmission component (1003), the third transmission component (1004) and the fourth transmission component (1005) have the same structure, and the second transmission component (1003), the third transmission component (1004) and the fourth transmission component (1005) are composed of two pulleys and a transmission belt.

9. The straw crushing and returning machine for fields that evenly spreads straw powder as claimed in claim 1, characterized in that: The discharging assembly (18) comprises a suction fan (1801), a conveying pipe (1802) and a discharge pipe (1803); the suction fan (1801) is provided with a conveying pipe (1802) and a discharge pipe (1803), and the discharge pipe (1803) is connected to one side of a material distribution box (1804); the material distribution box (1804) is connected to the lower end of the mounting base (1) via a symmetrically arranged fixed side plate (1805); a material discharge grid plate (1806) is provided at the lower end of the interior of the material distribution box (1804), and a material guide plate (1807) is provided on one side below a material distribution opening opened in the material discharge grid plate (1806); and a partition plate (1808) is provided between adjacent material guide plates (1807).

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