Efficient straw smashing and returning machine

Abstract

The invention discloses an efficient straw smashing and returning machine, and relates to the technical field of agricultural equipment. The straw smashing and returning machine comprises a machine body, a driving part and a pressing-down assembly; a smashing and stirring mechanism is arranged in the machine body and comprises a bearing driving assembly and a plurality of smashing execution pieces. An arc-shaped protruding part is arranged on the top of the machine body, the dust falling water tank is arranged on the arc-shaped protruding part, a plurality of water outlet holes are formed in the arc-shaped protruding part, and the intermittent water outlet assembly comprises an arc-shaped sealing plate, a fixing shaft, a swing rod and a poke rod piece. One end of the swing rod extends to the arc-shaped sealing plate and is fixedly connected with the inner wall of the arc-shaped sealing plate, the arc-shaped sealing plate is arranged on the inner arc wall of the arc-shaped protruding part and slides on the inner arc wall of the arc-shaped protruding part, and the arc-shaped sealing plate is provided with a plurality of through holes corresponding to the water outlet holes in a one-to-one mode. The straw smashing and soil turning device is simple in structure, capable of rapidly smashing straw and turning soil and intermittently spraying water spots, dust particles are prevented from being raised, the surrounding working environment is improved, and high practicability is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of agricultural equipment, in particular to a straw crushing and efficient field returning machine. Background Art

[0002] Returning straw to the field is a measure to improve soil fertility and increase production that is widely valued in the world today. While eliminating the air pollution caused by straw burning, it also has the effect of increasing fertilizer and yield. Returning straw to the field can increase soil organic matter, improve soil structure, make the soil loose, increase porosity, reduce capacity, promote microbial activity and the development of crop roots. Returning straw to the field has a significant effect on increasing fertilizer and yield, generally increasing yield by 5% to 10%. Most common ways of returning straw to the field use return machines to crush the harvested land online, so that the crushed straw debris can be spread on the field without affecting the next sowing.

[0003] The existing field return machine has a rolling part installed at the front end of the machine body and a crushing part installed at the bottom of the machine body; the rolling part can press the straw down and make it lie in the field, and the crushing part crushes the fallen straw in the field so that the crushed materials cover the field; however, the crushed straw and soil are prone to generate dust particles, thereby affecting the surrounding working environment. Summary of the invention

[0004] The object of the present invention is to provide a straw crushing and efficient field returning machine to solve the problems in the background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] A straw crushing and efficient field returning machine comprises a machine body, a driving member and a pressing assembly, wherein one side of the machine body is connected to one end of a walking device through a supporting arm; the pressing assembly is arranged at one end of the machine body away from the connecting supporting arm and is used to roll the straw; a crushing and turning mechanism is provided inside the machine body, and the crushing and turning mechanism comprises a supporting driving assembly and a plurality of crushing actuators, wherein the supporting driving assembly is provided inside the machine body and one end is connected to the driving member, and the plurality of crushing actuators are provided on the side of the supporting driving assembly, and the supporting driving assembly can drive the plurality of crushing actuators to reciprocate and rotate thereon; the machine body also comprises a dust reduction water tank and an intermittent water outlet assembly, wherein the top of the machine body has an arc-shaped protrusion protruding upward, and the dust reduction water tank is provided at On the arc-shaped protrusion, there are multiple water outlet holes on the arc-shaped protrusion. The intermittent water outlet component includes an arc-shaped sealing plate, a fixed shaft, a rocker rod and a toggle rod. The fixed shaft is horizontally arranged inside the body and the rocker rod is rotatably arranged on the fixed shaft. One end of the rocker rod extends to the arc-shaped sealing plate and is fixedly connected to the inner wall of the arc-shaped sealing plate. The other end of the rocker rod extends toward the supporting drive component. The arc-shaped sealing plate is arranged on the inner arc wall of the arc-shaped protrusion and slides thereon. The arc-shaped sealing plate has multiple through holes that can correspond to the water outlet holes one by one; the toggle rod is arranged on the supporting drive component and the supporting drive component can drive the toggle rod to swing reciprocatingly, and the toggle rod can drive the rocker rod to swing during the swinging process.

[0007] On the basis of the above technical solution, the present invention also provides the following optional technical solution:

[0008] In an optional scheme: the supporting drive assembly includes a mounting cross frame, a screw and multiple fixed slides, the end of the mounting cross frame is fixed inside the machine body, the screw is rotatably arranged in the middle of the mounting cross frame, one end of the screw is connected to the driving member and the screw rotates back and forth under the drive of the driving member, multiple fixed slides are distributed in two rows and slidably arranged on both sides of the mounting cross frame, the screw has multiple connecting sleeves connected to the fixed slides, and the connecting sleeves are spirally matched with the screw; each fixed slide has a semi-cylindrical body that can rotate thereon and is used to install a crushing actuator, the bottom of the semi-cylindrical body has a semi-circular gear, and the mounting cross frame is provided with a driving rack meshing with the semi-circular gear along its length.

[0009] In an optional solution: the crushing actuator includes a vertical rod and a crushing claw arranged at the end of the vertical rod, the semi-cylindrical body is a semi-cylindrical structure and the vertical rod is stuck inside the semi-cylindrical body, the end of the semi-cylindrical body is partially a semi-circular flange and the semi-circular flange and the end of the vertical rod can be fastened by bolts.

[0010] In an optional solution: the driving member includes a transmission box, a crushing motor, a driving rack and a forward and reverse transmission member, the transmission box is fixed on the side wall of the machine body and the crushing motor is arranged inside the transmission box, the driving rack is slidably arranged inside the transmission box and meshes with the transmission gear arranged on the screw rod; the forward and reverse transmission member is arranged on the output end of the crushing motor and connected to the driving rack; the forward and reverse transmission member can make the driving rack reciprocate inside the transmission box under the drive of the crushing motor.

[0011] In an optional scheme: the forward and reverse transmission parts include a rotating disk, a pushing column and a push-pull bar frame, the pushing column is arranged on the output end of the crushing motor, the push-pull bar frame is arranged on the end surface of the rotating disk and the push-pull bar frame is arranged at one end of the driving rack, the push-pull bar frame is located at the end surface of the rotating disk and the end of the pushing column extends to the inside of the push-pull bar frame.

[0012] In an optional scheme: the arc-shaped sealing plate also has multiple scattering components inside, and the multiple scattering components are correspondingly arranged at the through holes on the arc-shaped sealing plate. The scattering components include a scattering rod shaft, a scattering bracket, a scattering rod and a scattering gear. The scattering bracket is fixed on the inner wall of the arc-shaped sealing plate, the scattering rod shaft is rotatably arranged on the scattering bracket, the scattering rod is annularly arranged on the outer wall of the scattering rod shaft, and the scattering gear is arranged on the scattering rod shaft and meshes with the arc-shaped rack arranged on the inner wall of the body.

[0013] In an optional scheme: the pressing assembly includes a fixed bracket, a front pressure roller and a rear pressure roller, the fixed bracket is fixed to the front end of the machine body and a V-shaped rotating bracket is installed on the fixed bracket and rotates thereon, the front pressure roller and the rear pressure roller are respectively rotatably arranged at the two ends of the V-shaped rotating bracket; a torsion spring is provided between the V-shaped rotating bracket and the fixed bracket.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] 1. The crushing and turning mechanism of the present invention can crush the crushed straw together with the soil and realize mixed turning, thereby improving the full contact between the crushed straw and the soil and improving the soil fertility;

[0016] 2. The dust suppression water tank and intermittent water outlet assembly of the present invention can spray water stains on the crushed straw and soil to prevent dust particles in the soil from being raised and affecting the surrounding environment;

[0017] 3. The present invention has a simple structure, can quickly crush straw and turn over soil, and intermittently spray water stains to avoid dust particles from being raised, improve the surrounding working environment, and has strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The figure is a schematic diagram of the overall structure of the field returning machine in one embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of a machine body in one embodiment of the present invention.

[0020] Figure 3 It is a schematic diagram of the structure of a driving member in one embodiment of the present invention.

[0021] Figure 4 It is a schematic diagram of the structure of the crushing and turning mechanism in one embodiment of the present invention.

[0022] Figure 5 It is a schematic diagram of the structure of an intermittent water outlet component in one embodiment of the present invention.

[0023] Notes on the accompanying drawings: body 1, connecting arm 2, dust suppression water tank 3, arc-shaped protrusion 32, water outlet 33, driving member 4, transmission box 41, crushing motor 42, rotating disk 43, pushing column 44, push-pull bar frame 45, driving rack 46, pressing assembly 5, fixed bracket 51, front pressure roller 52, V-shaped rotating bracket 53, rear pressure roller 54, crushing flipping mechanism 6, supporting drive assembly 61, mounting cross frame 611, screw rod 612, fixed slide 613, semi-cylindrical body 614, semi-circular gear 615, driving rack 616, connecting sleeve 617, crushing actuator 62, intermittent water outlet assembly 7, arc-shaped sealing plate 71, scattering assembly 72, scattering rod shaft 721, scattering bracket 722, scattering rod 723, scattering gear 724, arc-shaped rack 73, fixed shaft 74, rocker arm 75, toggle rod 76. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments; in the drawings or descriptions, similar or identical parts use the same reference numerals, and in practical applications, the shape, thickness or height of each component can be enlarged or reduced. The various embodiments listed in the present invention are only used to illustrate the present invention and are not used to limit the scope of the present invention. Any obvious modifications or changes made to the present invention do not depart from the spirit and scope of the present invention.

[0025] In one embodiment, Figure 1-Figure 3As shown, a straw crushing and efficient field returning machine includes a machine body 1, a driving member 4 and a pressing assembly 5, one side of the machine body 1 is connected to one end of the walking device through a connecting arm 2; the pressing assembly 5 is arranged at one end of the machine body 1 away from the connecting arm 2 and is used to roll the straw; the machine body 1 has a crushing and turning mechanism 6 inside, and the crushing and turning mechanism 6 includes a supporting driving assembly 61 and a plurality of crushing actuators 62, the supporting driving assembly 61 is arranged inside the machine body 1 and one end is connected to the driving member 4, the plurality of crushing actuators 62 are arranged on the side of the supporting driving assembly 61, and the supporting driving assembly 61 can drive the plurality of crushing actuators 62 to reciprocate and rotate thereon; it also includes a dust reduction water tank 3 and an intermittent water outlet assembly 7, the top of the machine body 1 has an arc-shaped protrusion 32 protruding upward, and the dust reduction water tank 3 is arranged on the arc-shaped protrusion 32 , the arc-shaped protrusion 32 is provided with a plurality of water outlet holes 33, the intermittent water outlet assembly 7 comprises an arc-shaped sealing plate 71, a fixed shaft 74, a swing rod 75 and a toggle rod 76, the fixed shaft 74 is transversely arranged inside the body 1, the swing rod 75 is rotatably arranged on the fixed shaft 74, one end of the swing rod 75 extends to the arc-shaped sealing plate 71 and is fixedly connected to the inner wall of the arc-shaped sealing plate 71, the other end of the swing rod 75 extends toward the supporting drive assembly 61, the arc-shaped sealing plate 71 is arranged on the inner arc wall of the arc-shaped protrusion 32 and slides thereon, the arc-shaped sealing plate 71 is provided with a plurality of through holes which can correspond to the water outlet holes 33 one by one; the toggle rod 76 is arranged on the supporting drive assembly 61 and the supporting drive assembly 61 can drive the toggle rod 76 to swing reciprocatingly, and the toggle rod 76 can toggle the swing rod 75 to swing during the swinging process;

[0026] In this embodiment, the field return machine moves with the walking device, and the pressing component 5 can press the straw down in the field. When the crushing and turning mechanism 6 passes by the straw dumped in the field, the driving member 4 drives the supporting driving component 61 to operate and the supporting driving component 61 drives the crushing actuator 62 to move back and forth and can rotate, so that the bottom end of the crushing actuator 62 crushes the straw and turns the soil at the root of the straw under the rolling pressure of the pressing component 5; at the same time, the supporting driving component 61 can also drive the toggle rod 76 to swing back and forth, and then the toggle rod 76 can drive the swing rod 75 to swing, and the swing rod 75 drives the arc-shaped sealing plate 71 attached to the arc-shaped protrusion 32, and the arc-shaped sealing plate 71 is driven by the supporting driving component 61. The sealing plate 71 reciprocates on the arc-shaped protrusion 32, so that the through hole on the arc-shaped sealing plate 71 and the water outlet hole 33 on the arc-shaped protrusion 32 switch between mutually misaligned and mutually aligned states; when the through hole and the water outlet hole 33 are aligned, the water flow stored in the dust reduction water tank 3 is sprayed downward from the water outlet hole 33 and the through hole, and when the through hole and the water outlet hole 33 are misaligned, the arc-shaped sealing plate 71 blocks the water outlet hole 33 to ensure that the water in the dust reduction water tank 3 does not flow downward; in this way, when the crushing actuator 62 crushes the straw and turns the soil, water is sprayed toward the straw, thereby avoiding dust from being raised when turning the soil, and ensuring that the crushed straw is evenly mixed with the soil, thereby improving the fertilization effect;

[0027] In one embodiment, Figure 2-Figure 4 As shown, the supporting drive assembly 61 includes a mounting cross frame 611, a screw rod 612 and a plurality of fixed slides 613. The end of the mounting cross frame 611 is fixed inside the machine body 1. The screw rod 612 is rotatably arranged in the middle of the mounting cross frame 611. One end of the screw rod 612 is connected to the driving member 4 and the screw rod 612 reciprocates under the drive of the driving member 4. A plurality of fixed slides 613 are distributed in two rows and slidably arranged on both sides of the mounting cross frame 611. The screw rod 612 has a plurality of connecting sleeves 617 connected to the fixed slides 613, and the connecting sleeves 617 are spirally matched with the screw rod 612. Each fixed slide 613 has a semi-cylindrical body 614 that can rotate thereon and is used to install the crushing actuator 62, and the bottom of the semi-cylindrical body 614 has a semi-cylindrical body The circular gear 615, the mounting cross frame 611 is provided with a driving rack 616 meshing with the semicircular gear 615 along its length direction; in this embodiment, the crushing actuator 62 is installed and fixed on the semi-cylinder 614, when the driving member 4 drives the screw rod 612 to rotate forward and reverse, the screw rod 612 can drive multiple fixed slides 613 to move back and forth at the same time through the spiral cooperation with the connecting sleeve 617, and the fixed slide 613 drives the crushing actuator 62 on the semi-cylinder 614 to move back and forth, and at the same time, the movement of the semi-cylinder 614 drives the semi-circular gear 615 to move, and the semi-circular gear 615 is meshed with the driving rack 616, so that the semi-cylinder 614 and the crushing actuator 62 rotate by themselves, so that the crushing actuator 62 can rotate to crush the straw and turn the soil during the movement;

[0028] In one embodiment, Figure 2 and Figure 4 As shown, the crushing actuator 62 includes a vertical rod and a crushing claw arranged at the end of the vertical rod, the semi-cylindrical body 614 is a semi-cylindrical structure and the vertical rod is stuck inside the semi-cylindrical body 614, the end of the semi-cylindrical body 614 is partially semi-circular flange and the semi-circular flange and the end of the vertical rod can be fastened by bolts; in this embodiment, the crushing actuator 62 can be detachably installed on the semi-cylindrical body 614, so as to facilitate replacement and maintenance.

[0029] In one embodiment, Figure 3As shown, the driving member 4 includes a transmission box 41, a crushing motor 42, a driving rack 46 and a forward and reverse transmission member, the transmission box 41 is fixed on the side wall of the body 1 and the crushing motor 42 is arranged inside the transmission box 41, the driving rack 46 is slidably arranged inside the transmission box 41 and meshes with the transmission gear 47 arranged on the screw rod 612; the forward and reverse transmission member is arranged on the output end of the crushing motor 42 and connected to the driving rack 46; the forward and reverse transmission member can make the driving rack 46 reciprocate inside the transmission box 41 under the drive of the crushing motor 42; in this embodiment, the crushing motor 42 drives the driving rack 46 to reciprocate through the forward and reverse transmission member, and the driving rack 46 can drive the screw rod 612 to rotate forward and reverse by meshing with the transmission gear 47.

[0030] In one embodiment, Figure 3 As shown, the forward and reverse transmission member includes a rotating disk 43, a pushing column 44 and a push-pull bar frame 45, wherein the pushing column 44 is arranged on the output end of the pulverizing motor 42, the push-pull bar frame 45 is arranged on the end surface of the rotating disk 43 and the push-pull bar frame 45 is arranged at one end of a driving rack 46, the push-pull bar frame 45 is located at the end surface of the rotating disk 43 and the end of the pushing column 44 extends to the inside of the push-pull bar frame 45; in this embodiment, the pulverizing motor 42 drives the rotating disk 43 to rotate, and the pushing column 44 on the rotating disk 43 rotates around the center of the pulverizing motor 42, thereby driving the push-pull bar frame 45 to reciprocate, and the driving rack 46 moves reciprocatingly accordingly; wherein, the forward and reverse transmission member can also be a structure of a cam and a spring;

[0031] In one embodiment, Figure 2 and Figure 5 As shown, the arc-shaped sealing plate 71 also has a plurality of scattering components 72, and the plurality of scattering components 72 are correspondingly arranged at the through holes on the arc-shaped sealing plate 71. The scattering components 72 include a scattering rod shaft 721, a scattering bracket 722, a scattering rod 723 and a scattering gear 724. The scattering bracket 722 is fixed on the inner wall of the arc-shaped sealing plate 71, the scattering rod shaft 721 is rotatably arranged on the scattering bracket 722, the scattering rod 723 is arranged on the outer wall of the scattering rod shaft 721, and the scattering gear 724 is arranged on the outer wall of the scattering rod shaft 721. 4 is arranged on the scattering rod shaft 721 and meshes with the arc-shaped rack 73 arranged on the inner wall of the body 1; in this embodiment, due to the reciprocating movement of the arc-shaped sealing plate 71, the scattering rod shaft 721, the scattering bracket 722 and the scattering rod 723 are driven to move accordingly, and due to the meshing of the scattering gear 724 and the arc-shaped rack 73, the scattering rod shaft 721 rotates while moving, thereby causing the scattering rod 723 to rotate; and then the water stains flowing out of the through hole can be scattered around when passing through the scattering assembly 72, so as to be evenly scattered;

[0032] In one embodiment, Figure 1As shown, the pressing assembly 5 includes a fixed bracket 51, a front pressure roller 52 and a rear pressure roller 54, the fixed bracket 51 is fixed to the front end of the machine body 1 and a V-shaped rotating bracket 53 rotating thereon is installed on the fixed bracket 51, the front pressure roller 52 and the rear pressure roller 54 are respectively rotatably arranged at the two ends of the V-shaped rotating bracket 53; a torsion spring is provided between the V-shaped rotating bracket 53 and the fixed bracket 51; in this embodiment, since a torsion spring is provided between the V-shaped rotating bracket 53 and the fixed bracket 51, the V-shaped rotating bracket 53 is elastically damped and rotated on the fixed bracket 51; when the entire device moves smoothly, the front pressure roller 52 always rolls the straw; when there is a protrusion on the field, the front pressure roller 52 rotates upward due to the protrusion, so that the rear pressure roller 54 rotates downward and continues to roll the straw, avoiding affecting the effect of the crushing turning mechanism 6 on crushing the straw due to the looseness of the straw.

[0033] The above embodiment discloses a straw crushing and high-efficiency field return machine, in which the pressing component 5 can press the straw down in the field, and when the crushing and turning mechanism 6 passes by the straw dumped in the field, the driving member 4 drives the supporting driving component 61 to move and the supporting driving component 61 drives the crushing actuator 62 to move back and forth and can rotate, so that the bottom end of the crushing actuator 62 crushes the straw and turns the soil at the root of the straw under the rolling cooperation of the pressing component 5; at the same time, the supporting driving component 61 can also drive the toggle rod 76 to swing back and forth, and then the toggle rod 76 can drive the swing rod 75 to swing, and the swing rod 75 drives the arc-shaped sealing plate 71 attached to the arc-shaped protrusion 32, and the arc The arc-shaped sealing plate 71 moves reciprocatingly on the arc-shaped protrusion 32, so that the through hole on the arc-shaped sealing plate 71 and the water outlet hole 33 on the arc-shaped protrusion 32 switch between mutually offset and mutually aligned states; when the through hole and the water outlet hole 33 are aligned, the water flow stored in the dust reduction water tank 3 is sprayed downward from the water outlet hole 33 and the through hole, and when the through hole and the water outlet hole 33 are misaligned, the arc-shaped sealing plate 71 blocks the water outlet hole 33 to ensure that the water in the dust reduction water tank 3 does not flow downward; in this way, when the crushing actuator 62 crushes the straw and turns the soil, water is sprayed toward the straw, thereby avoiding dust from being raised when turning the soil, and ensuring that the crushed straw and soil are evenly mixed, thereby improving the fertilization effect.

[0034] The above is only a specific implementation of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the present disclosure, which should be included in the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be based on the protection scope of the claims.

Claims

1. A straw crushing and efficient field returning machine, comprising a machine body, a driving member and a pressing assembly, wherein one side of the machine body is connected to one end of a support arm and a walking device; the pressing assembly is arranged at one end of the machine body away from the connecting support arm and is used to roll the straw; characterized in that: The machine body has a crushing and turning mechanism inside, and the crushing and turning mechanism includes a supporting drive assembly and a plurality of crushing actuators; The supporting driving assembly is arranged inside the machine body and one end of the supporting driving assembly is connected to the driving member. A plurality of crushing actuators are arranged on the side of the supporting driving assembly and the supporting driving assembly can drive the plurality of crushing actuators to reciprocate and rotate on the supporting driving assembly. It also includes a dust suppression water tank and an intermittent water outlet assembly; The top of the machine body is provided with an arc-shaped protrusion protruding upward, and the dust suppression water tank is arranged on the arc-shaped protrusion, and the arc-shaped protrusion is provided with a plurality of water outlet holes; The intermittent water outlet assembly comprises an arc-shaped sealing plate, a fixed shaft, a swing rod and a toggle rod; The fixed shaft is transversely arranged inside the machine body, and the swing rod is rotatably arranged on the fixed shaft, and one end of the swing rod extends to the arc-shaped sealing plate and is fixedly connected to the inner wall of the arc-shaped sealing plate; The other end of the swing rod extends toward the supporting driving assembly, and the arc-shaped sealing plate is arranged on the inner arc wall of the arc-shaped protrusion and slides thereon; The arc-shaped sealing plate is provided with a plurality of through holes which can correspond one to one with the water outlet holes; The toggle rod is arranged on the supporting driving assembly and the supporting driving assembly can drive the toggle rod to swing reciprocatingly, and the toggle rod can drive the swing rod to swing during the swinging process.

2. The straw crushing and efficient field returning machine according to claim 1, characterized in that: The support drive assembly includes a mounting cross frame, a screw rod and a plurality of fixed slide seats; The end of the mounting cross frame is fixed inside the machine body, the screw rod is rotatably arranged in the middle of the mounting cross frame, one end of the screw rod is connected to the driving member and the screw rod is driven by the driving member to reciprocate in forward and reverse directions; A plurality of fixed slides are distributed in two rows and slidably arranged on both sides of the mounting cross frame, and the screw rod has a plurality of connecting sleeves connected to the fixed slides, and the connecting sleeves are spirally matched with the screw rod; Each fixed slide seat is provided with a semi-cylindrical body which can rotate thereon and is used for mounting a pulverizing actuator; The bottom of the semi-cylindrical body is provided with a semi-circular gear, and the mounting cross frame is provided with a driving rack meshing with the semi-circular gear along its length direction.

3. The straw crushing and efficient field returning machine according to claim 2 is characterized in that: The crushing actuator includes a vertical rod and a crushing claw arranged at the end of the vertical rod. The semi-cylindrical body is a semi-cylindrical structure and the vertical rod is stuck inside the semi-cylindrical body. The end of the semi-cylindrical body has a partial semi-circular flange and the semi-circular flange and the end of the vertical rod can be fastened by bolts.

4. The straw crushing and efficient field returning machine according to claim 2, characterized in that: The driving member includes a transmission box, a pulverizing motor, a driving rack and a forward and reverse transmission member; The transmission box is fixed on the side wall of the machine body and the crushing motor is arranged inside the transmission box. The driving rack is slidably arranged inside the transmission box and meshes with the transmission gear arranged on the screw rod. The forward and reverse transmission parts are arranged on the output end of the pulverizing motor and connected with the driving rack; The forward and reverse transmission member can make the driving rack reciprocate inside the transmission box under the drive of the pulverizing motor.

5. The straw crushing and high-efficiency field returning machine according to claim 4 is characterized in that: The forward and reverse transmission parts include a rotating disk, a pushing column and a push-pull bar frame; The pushing column is arranged on the output end of the pulverizing motor, the push-pull bar frame is arranged on the end surface of the rotating disk and the push-pull bar frame is arranged on one end of the driving rack; The push-pull bar frame is located at the end surface of the rotating disk and the end of the pushing column extends to the inside of the push-pull bar frame.

6. The straw crushing and high-efficiency field returning machine according to claim 5, characterized in that: The arc-shaped sealing plate is also provided with a plurality of spreading components; A plurality of spreading components are correspondingly arranged at the through holes on the arc-shaped sealing plate; The scattering assembly comprises a scattering rod shaft, a scattering bracket, a scattering rod and a scattering gear; The scattering bracket is fixed on the inner wall of the arc-shaped sealing plate, the scattering rod shaft is rotatably arranged on the scattering bracket, the scattering rod ring is arranged on the outer wall of the scattering rod shaft, and the scattering gear is arranged on the scattering rod shaft and meshes with the arc-shaped rack arranged on the inner wall of the machine body.

7. The high-efficiency straw crushing and returning machine to the field according to claim 6, characterized in that: The pressing assembly comprises a fixed bracket, a front pressing roller and a rear pressing roller; The fixed bracket is fixed to the front end of the machine body and a V-shaped rotating bracket is installed on the fixed bracket to rotate thereon; The front pressing roller and the rear pressing roller are rotatably arranged at the two ends of the V-shaped rotating bracket respectively; a torsion spring is arranged between the V-shaped rotating bracket and the fixed bracket.

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