Farmland straw smashing post-treatment device and treatment method

Abstract

The invention discloses a farmland straw smashing post-processing device which comprises a rack and further comprises a connecting piece fixedly connected to one end of the rack; the two furrow ploughs are fixedly connected to the two sides of the rack respectively; the collecting unit is mounted at one end, far away from the connecting piece, of the rack; the covering unit is arranged on the side, away from the rack, of the collecting unit; and the transmission mechanism is mounted on the rack. The invention relates to the technical field of straw crushing post-treatment, and according to the farmland straw crushing post-treatment device, through cooperation of the furrow plough, the collecting unit and the covering unit, grooves deep enough are formed in a field, and crushed straws on the surface of soil are pushed into the grooves to be buried, so that on one hand, the crushed straws can be prevented from being blown away by wind; on the other hand, the buried smashed straw is more beneficial to deterioration, the straw returning effect is guaranteed, the straw becomes natural fertilizer of soil, and cultivation is facilitated.

Description

Technical Field

[0001] The invention relates to the technical field of post-processing of straw crushing, and in particular to a device and method for post-processing of farmland straw crushing. Background Art

[0002] Returning straw to the field is a measure of returning straw to the fields. It is a measure to improve soil fertility and increase production that is widely valued in the world. 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.

[0003] For example, a corn harvester straw crushing device based on mechanical interlocking action with application number CN202411745922.5 includes a shell; the shell is a cylindrical structure, and a plurality of blades are evenly arranged around the axis of the shell in the shell, and the blade rotates around the axis of the shell in the shell, and the blade has a crushing mode and a grinding mode. When the blade is in the switching mode, the blade rotates around its own extension direction. When the blade is in the crushing mode, the end face of the blade is parallel to the horizontal plane, and when the blade is in the grinding mode, there is an angle between the end face of the blade and the horizontal plane. A sharpening unit is arranged in the shell, and the sharpening unit includes a lifting frame arranged in the shell in a vertical direction, and two grindstones are arranged vertically on the lifting frame, and the grindstones are arranged along the radial direction of the shell. The present invention enables the blade to cut the straw for a long time, and the cutting efficiency is always constant.

[0004] However, in actual production, the crushed straw is sprayed directly onto the fields by harvesters, and there is no effective way to deal with it. It is exposed on the surface. On the one hand, it will be blown around by the wind, causing air pollution. On the other hand, being exposed on the surface is not conducive to its deterioration. The effect of returning straw to the field is not ideal. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a device and method for post-processing of crushed farmland straw, which solves the problem that the crushed straw is directly sprayed on the field by the harvester without an effective treatment method and is exposed on the surface. On the one hand, it will float around under the wind and cause air pollution. On the other hand, being exposed on the surface is not conducive to its deterioration, and the effect of returning the straw to the field is not ideal.

[0006] To achieve the above-mentioned purpose, the present invention provides a device for post-processing farmland straw pulverization, comprising a frame, and the device for post-processing farmland straw pulverization also includes: a connecting piece, fixedly connected to one end of the frame; two furrowing plows, respectively fixedly connected to both sides of the frame; a collecting unit, installed at one end of the frame away from the connecting piece; a covering unit, arranged on a side of the collecting unit away from the frame; a transmission mechanism, installed on the frame and respectively connected to the collecting unit and the covering unit; wherein the connecting piece is used to connect the frame with an external traction device, and furrowing on both sides and ridge forming in the middle are achieved by the two furrowing plows, the collecting unit pushes the pulverized straw into the groove, and covers the soil of the ridge platform on the straw surface inside the groove through the covering unit, and the transmission mechanism is used to drive the collecting unit and the covering unit.

[0007] Preferably, a connecting ear plate is fixedly connected to the top of the connecting member, and traction connecting shafts are installed at both ends of the connecting member.

[0008] Preferably, an inclined push plate is fixedly connected to the surface of the furrowing plough.

[0009] Preferably, the collecting unit comprises: two groove wheels in each group, which are arranged in two groups and are respectively arranged on both sides of the end of the frame away from the connecting piece; two belts are arranged and installed between the two groove wheels in the same group; baffles are fixedly connected to the outer wall of the belt at equal intervals; a crossbeam is fixed to the surface of the frame and is rotatably connected to the two groove wheels located on the outside through a bearing seat; wherein, the crossbeam serves as an installation base, and the belt, driven by the groove wheels, drives the baffles to push the crushed straw into the groove.

[0010] Preferably, the covering unit includes: a first connecting shaft, which is arranged on the side of the cross beam away from the frame; two auger blades, which are respectively fixed to the two sides of the outer wall of the first connecting shaft; a mounting beam, which is fixed to the surface of the frame and rotatably connected to the first connecting shaft through a bearing seat; wherein the mounting beam supports the first connecting shaft, and the first connecting shaft synchronously drives the two auger blades to push the soil on the ridge into the grooves on both sides, and cover the crushed straw.

[0011] Preferably, the transmission mechanism includes: a second connecting shaft, which is installed on the top of the frame near the connecting piece through a bearing seat; two groups of walking wheels, which are respectively fixedly connected to the two ends of the second connecting shaft and are located on both sides of the frame; a direct drive unit, which is arranged above the frame and installed on the second connecting shaft; a first sub-drive unit, which is installed between the direct drive unit and the first connecting shaft; a second sub-drive unit, which is installed between the direct drive unit and the groove wheel; wherein the walking wheel follows the overall movement of the device to drive the second connecting shaft to rotate, and the second connecting shaft transmits power to the first connecting shaft and the groove wheel through the first sub-drive unit and the second sub-drive unit.

[0012] Preferably, the direct drive unit includes: a first transmission wheel, fixedly connected to the outer wall of the second connecting shaft; a first transmission chain, installed on the outer wall of the first transmission chain; a second transmission wheel, installed on the inner wall of the first transmission chain, and respectively connected to the first sub-drive unit and the second sub-drive unit; wherein, when the first transmission wheel rotates following the second connecting shaft, power is transmitted synchronously through the first transmission chain and the second transmission wheel.

[0013] Preferably, the first sub-drive unit includes: a third transmission wheel installed on the second transmission wheel; a second transmission chain installed on the outer wall of the third transmission wheel; a fourth transmission wheel installed on the inner wall of the third transmission wheel and fixedly connected to the outer wall of the first connecting shaft; wherein the power of the second transmission wheel is transmitted to the fourth transmission wheel through the third transmission wheel and the second transmission chain, thereby driving the first connecting shaft.

[0014] Preferably, the second drive unit comprises: a third connecting shaft, respectively fixed to the inner walls of the second transmission wheel and the third transmission wheel; two commutators are provided, respectively fixed to the top two sides of the frame, and respectively installed at the two ends of the third connecting shaft, and the output ends are fixed to the two groove wheel surfaces located on the inner side; The power transmission between the second transmission wheel and the third transmission wheel is realized through the third connecting shaft, and the output direction is adjusted through the commutator to drive the collection unit.

[0015] The present invention also provides a method for post-processing farmland straw after crushing, comprising the following steps: S1. The farm straw crushing and post-processing device is connected to the traction equipment through a connector; S2. Under the traction of the traction equipment, the furrowing plow opens a furrow on the surface of the farmland, and the soil opened by the furrowing plow is concentrated between the two furrows to form a ridge; S3. The walking wheel contacts the ground and drives the second connecting shaft to rotate, and the rotation of the second connecting shaft is transmitted to the third connecting shaft through the first transmission wheel, the first transmission chain and the second transmission wheel; S4. The third connecting shaft transmits power to the groove wheel through the commutator, which serves as the power of the collection unit. While the belt is rotating, it pushes the crushed straw in the field into the groove opened by the furrowing plow through the baffle installed on its outer wall; S5. The third connecting shaft transmits power to the first connecting shaft through the third transmission wheel, the second transmission chain and the fourth transmission wheel, and drives the auger blades to rotate to disperse the soil on the ridge inside the groove, thereby covering the straw inside the groove.

[0016] The present invention has the following beneficial effects: the farmland straw crushing and post-processing device, through the cooperation between the furrowing plow, the collecting unit and the covering unit, opens a sufficiently deep furrow in the field, and pushes the crushed straw on the soil surface into the furrow for burying. On the one hand, it can prevent the crushed straw from being blown away by the wind and causing air pollution. On the other hand, the buried crushed straw is more conducive to deterioration, the straw returning effect is guaranteed, and the straw becomes a natural fertilizer for the soil, which is conducive to farming.

[0017] Through the coordination of the second connecting shaft, the traveling wheels, the direct drive unit and other structures, the farmland straw crushing and post-processing device only needs the traction of the traction equipment when working, and no additional power structure is required. During the movement, actions such as grooving and burying can be performed simultaneously. The connection method with the traction equipment is simple, and the overall design structure is simple without precise structure, and the failure rate and cost are low. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the structure of the second connecting shaft, the third connecting shaft and the second transmission chain; Figure 3 for Figure 1 Schematic diagram of the structure of the first connecting shaft, auger blades and mounting beam.

[0019] In the figure: 1. frame; 2. connecting part; 21. connecting ear plate; 22. traction connecting shaft; 3. furrowing plow; 31. inclined push plate; 4. collecting unit; 41. groove wheel; 42. belt; 43. baffle; 44. crossbeam; 5. covering unit; 51. first connecting shaft; 52. auger blade; 53. mounting beam; 6. transmission mechanism; 61. second connecting shaft; 62. walking wheel; 63. direct drive unit; 631. first transmission wheel; 632. first transmission chain; 633. second transmission wheel; 64. first sub-drive unit; 641. third transmission wheel; 642. second transmission chain; 643. fourth transmission wheel; 65. second sub-drive unit; 651. third connecting shaft; 652. commutator. DETAILED DESCRIPTION

[0020] 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.

[0021] By those skilled in the art, the components in this case are connected in sequence. The specific connection and operation sequence should refer to the following working principle. The detailed connection means are well-known technologies in the art. The following mainly introduces the working principle and process.

[0022] The crushed straw is sprayed directly onto the fields by harvesters, and there is no effective way to deal with it. It is exposed on the surface. On the one hand, it will be blown around by the wind, causing air pollution. On the other hand, being exposed on the surface is not conducive to its deterioration. The effect of returning straw to the fields is not ideal.

[0023] In view of this, the present invention provides a device for post-processing farmland straw crushing. Through the cooperation between the furrowing plow, the collecting unit and the covering unit, a sufficiently deep furrow is opened in the field, and the crushed straw on the soil surface is pushed into the furrow for burying. On the one hand, the crushed straw can be prevented from being blown away by the wind, causing air pollution. On the other hand, the buried crushed straw is more conducive to deterioration, and the straw returning effect is guaranteed. The straw becomes a natural fertilizer for the soil, which is conducive to farming.

[0024] Depend on Figure 1-3 It can be seen that a farm straw crushing and post-processing device in this case includes a frame 1, and the farm straw crushing and post-processing device also includes: a connecting piece 2, fixedly connected to one end of the frame 1; two furrowing plows 3, respectively fixed to both sides of the frame 1; a collecting unit 4, installed at one end of the frame 1 away from the connecting piece 2; a covering unit 5, arranged on the side of the collecting unit 4 away from the frame 1; a transmission mechanism 6, installed on the frame 1, and respectively connected to the collecting unit 4 and the covering unit 5; wherein, the connecting piece 2 is used to connect the frame 1 with an external traction device, and the furrowing on both sides and the ridge forming in the middle are realized by two furrowing plows 3, the collecting unit 4 pushes the crushed straw into the groove, and covers the soil of the ridge platform on the straw surface inside the groove through the covering unit 5, and the transmission mechanism 6 is used to drive the collecting unit 4 and the covering unit 5.

[0025] In the specific implementation process, it is worth pointing out that, through the setting of the connecting member 2, the farmland straw crushing and post-processing device can be connected to a traction device, such as a tractor. In this case, the connecting member 2 should be set to a connection structure that conforms to the tractor and is designed according to actual needs. The function of the furrowing plow 3 is to open a groove on the surface of the farmland under the traction of the traction equipment. Two furrowing plows 3 correspondingly open two grooves, and the soil opened in the groove is concentrated between the two grooves under the action of the furrowing plow 3 to form a ridge. The collecting unit 4 behind the furrowing plow 3 gathers the crushed straw on the surface of the farmland into the groove, and then disperses the soil on the ridge through the covering unit 5 and returns it to the inside of the groove to cover the surface of the straw in the groove, thereby achieving straw covering.

[0026] In an practicable manner, a connecting ear plate 21 is fixedly connected to the top of the connecting member 2 , and a traction connecting shaft 22 is installed at both ends of the connecting member 2 .

[0027] In the specific implementation process, it is worth pointing out that the setting of the connecting ear plate 21 and the traction connecting shaft 22 can directly connect the connecting piece 2 to the hydraulic device at the rear of the tractor, so that the whole farmland straw crushing and post-processing device can be towed by the tractor and have a lifting and lowering effect.

[0028] In one practicable manner, an inclined push plate 31 is fixedly connected to the surface of the furrowing plow 3 .

[0029] In the specific implementation process, it is worth pointing out that the setting of the inclined push plate 31 is conducive to gathering the soil opened by the furrowing plow 3 inside the furrow, and the soil on both sides is gathered together to form a ridge, so that less soil remains inside the furrow, making the furrow depth sufficient.

[0030] In one practicable manner, the collecting unit 4 includes: groove wheels 41, two in each group, two groups are provided, and are respectively arranged on both sides of one end of the frame 1 away from the connecting member 2; two belts 42 are provided and installed between the two groove wheels 41 in the same group; baffles 43 are fixedly connected to the outer wall of the belts 42 at equal intervals; crossbeams 44 are fixed to the surface of the frame 1 and are rotatably connected to the two groove wheels 41 located on the outside through bearing seats; wherein the crossbeams 44 serve as an installation base, and the belts 42, driven by the groove wheels 41, drive the baffles 43 to push the crushed straw into the groove.

[0031] In the specific implementation process, it is worth pointing out that the groove wheel 41 supports the belt 42, and while the belt 42 rotates, it pushes the crushed straw in the field into the groove opened by the furrowing plow 3 through the baffle 43 installed on its outer wall, wherein the groove wheel 41 and the belt 42 can use mutually meshing teeth to ensure synchronous rotation, and the baffle 43 can be made of metal and fixed to the surface of the belt 42 by screws, or it can be made of rubber material and integrally formed with the belt 42. The advantage of this is that once the baffle 43 encounters a hard and immovable object during operation, it can avoid damage by its own deformation.

[0032] In an operative manner, the covering unit 5 includes: a first connecting shaft 51, which is arranged on the side of the cross beam 44 away from the frame 1; two auger blades 52, which are respectively fixed to the two sides of the outer wall of the first connecting shaft 51; a mounting beam 53, which is fixed to the surface of the frame 1 and is rotatably connected to the first connecting shaft 51 through a bearing seat; wherein the mounting beam 53 supports the first connecting shaft 51, and the first connecting shaft 51 synchronously drives the two auger blades 52 to push the soil on the ridge into the grooves on both sides, and cover the crushed straw.

[0033] In the specific implementation process, it is worth pointing out that the mounting beam 53 can be fixed to the frame 1 by bolts, and its purpose is to install the first connecting shaft 51 and the auger blade 52. The rotation of the auger blade 52 can disperse the soil on the ridge inside the groove, so as to cover the straw inside the groove. If the field soil is relatively soft, the auger blade 52 can be made of metal, which can more effectively push the soil. For example, for fields with harder soil or mountainous areas with more stones in the field, hard rubber material can be used for support to avoid damage due to rigid collision.

[0034] In one practicable manner, the transmission mechanism 6 includes: a second connecting shaft 61, which is installed on the top of the frame 1 on one side close to the connecting member 2 through a bearing seat; two groups of walking wheels 62, which are respectively fixedly connected to the two ends of the second connecting shaft 61 and are located on both sides of the frame 1; a direct drive unit 63, which is arranged above the frame 1 and installed on the second connecting shaft 61; a first sub-drive unit 64, which is installed between the direct drive unit 63 and the first connecting shaft 51; a second sub-drive unit 65, which is installed between the direct drive unit 63 and the groove wheel 41; wherein the walking wheel 62 drives the second connecting shaft 61 to rotate as the device moves as a whole, and the second connecting shaft 61 transmits power to the first connecting shaft 51 and the groove wheel 41 through the first sub-drive unit 64 and the second sub-drive unit 65.

[0035] In the specific implementation process, it is worth pointing out that the second connecting shaft 61 is used to install the walking wheel 62 on the one hand, and on the other hand, when the walking wheel 62 follows the overall movement of the frame 1, it will drive the second connecting shaft 61 to rotate, thereby providing power to the groove wheel 41 and the first connecting shaft 51. The direct drive unit 63 transmits the power of the second connecting shaft 61 to the groove wheel 41 part and the first connecting shaft 51 part through the first sub-drive unit 64 and the second sub-drive unit 65 respectively.

[0036] In one practicable manner, the direct drive unit 63 includes: a first transmission wheel 631, fixedly connected to the outer wall of the second connecting shaft 61; a first transmission chain 632, installed on the outer wall of the first transmission chain 632; a second transmission wheel 633, installed on the inner wall of the first transmission chain 632, and respectively connected to the first sub-drive unit 64 and the second sub-drive unit 65; wherein, when the first transmission wheel 631 rotates following the second connecting shaft 61, the power is synchronously transmitted through the first transmission chain 632 and the second transmission wheel 633.

[0037] Furthermore, the first drive unit 64 includes: a third transmission wheel 641, installed on the second transmission wheel 633; ​​a second transmission chain 642, installed on the outer wall of the third transmission wheel 641; a fourth transmission wheel 643, installed on the inner wall of the third transmission wheel 641 and fixedly connected to the outer wall of the first connecting shaft 51; wherein, through the third transmission wheel 641 and the second transmission chain 642, the power of the second transmission wheel 633 is transmitted to the fourth transmission wheel 643, thereby driving the first connecting shaft 51.

[0038] Furthermore, the second drive unit 65 includes: a third connecting shaft 651, which is fixedly connected to the inner walls of the second transmission wheel 633 and the third transmission wheel 641 respectively; a commutator 652, two of which are respectively fixedly connected to the top two sides of the frame 1, and are respectively installed at both ends of the third connecting shaft 651, and the output end is fixedly connected to the surface of the two groove wheels 41 located on the inner side; wherein, the power transmission of the second transmission wheel 633 and the third transmission wheel 641 is realized through the third connecting shaft 651, and the output direction is adjusted by the commutator 652 to drive the collection unit 4.

[0039] In the specific implementation process, it is worth pointing out that the first transmission wheel 631, the first transmission chain 632 and the second transmission wheel 633 cooperate to realize the transmission of the rotation of the second connecting shaft 61 to the third connecting shaft 651. The first transmission wheel 631, the first transmission chain 632 and the second transmission wheel 633 can be provided with a mutually meshing groove structure, which is conducive to synchronous transmission. The transmission ratio of the first transmission wheel 631 and the second transmission wheel 633 can be designed according to actual needs and is not limited in this embodiment. After the power is transmitted to the third connecting shaft 651, it is divided into two Part, one part is transmitted to the groove wheel 41 through the commutator 652 as the power of the collecting unit 4, and the other part is transmitted to the first connecting shaft 51 through the third transmission wheel 641, the second transmission chain 642 and the fourth transmission wheel 643 as the power of the covering unit 5, wherein the third transmission wheel 641, the second transmission chain 642 and the fourth transmission wheel 643 can also be provided with mutually meshing groove structures, which is conducive to synchronous transmission, and the transmission ratio of the third transmission wheel 641 and the fourth transmission wheel 643 can be designed according to actual needs, which is not limited in this embodiment.

[0040] Working principle: The farmland straw crushing post-processing device is connected to the traction equipment through the connecting piece 2. Under the traction of the traction equipment, the furrowing plow 3 opens a furrow on the surface of the farmland. Two furrowing plows 3 open two furrows correspondingly, and the soil opened by the furrowing plow 3 is concentrated between the two furrows to form a ridge. Driven by the traction equipment, the walking wheel 62 contacts the ground and drives the second connecting shaft 61 to rotate. The rotation of the second connecting shaft 61 is driven by the first transmission wheel 631, the first transmission chain 632 and the second transmission wheel 633. The power is transmitted to the third connecting shaft 651, and the third connecting shaft 651 is transmitted to the groove wheel 41 through the commutator 652. As the power of the collecting unit 4, the belt 42 pushes the crushed straw in the field into the groove opened by the furrowing plow 3 through the baffle 43 installed on its outer wall while rotating, and is transmitted to the first connecting shaft 51 through the third transmission wheel 641, the second transmission chain 642 and the fourth transmission wheel 643, and drives the auger blade 52 to rotate to disperse the soil on the ridge inside the groove, so as to cover the straw inside the groove.

[0041] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A farm straw crushing and post-processing device, comprising a frame, characterized in that: The farmland straw crushing and post-processing device also includes: A connecting piece, fixedly connected to one end of the frame; Two furrowing plows are provided and fixed to two sides of the frame respectively; A collecting unit is installed at one end of the frame away from the connecting piece; A covering unit, arranged on a side of the collecting unit away from the frame; A transmission mechanism, mounted on the frame and connected to the collecting unit and the covering unit respectively; Among them, the connecting part is used to connect the frame with the external traction equipment, and the two furrowing plows are used to realize furrowing on both sides and ridge forming in the middle. The collecting unit pushes the crushed straw into the groove, and the soil of the ridge is covered on the straw surface inside the groove through the covering unit. The transmission mechanism is used to drive the collecting unit and the covering unit.

2. The farmland straw crushing and post-processing device according to claim 1, characterized in that: A connecting ear plate is fixedly connected to the top of the connecting piece, and traction connecting shafts are installed at both ends of the connecting piece.

3. The farmland straw crushing and post-processing device according to claim 1, characterized in that: An inclined push plate is fixedly connected to the surface of the furrowing plough.

4. The farmland straw crushing and post-processing device according to claim 1, characterized in that: The collecting unit comprises: Two sets of groove wheels are provided, each set of two groove wheels is provided, and are respectively provided on both sides of an end of the frame away from the connecting piece; The belts are provided in pairs and are installed between the two groove wheels of the same group; Baffles are fixedly connected to the outer wall of the belt at equal intervals; A crossbeam, fixed to the surface of the frame, and rotatably connected to the two grooved wheels located on the outside through a bearing seat; The crossbeam serves as a mounting base, and the belt drives the baffle plate under the drive of the groove wheel to push the crushed straw into the groove.

5. The farmland straw crushing and post-processing device according to claim 4, characterized in that: The covering unit comprises: A first connecting shaft is arranged on a side of the crossbeam away from the frame; Two auger blades are provided and are respectively fixed to two sides of the outer wall of the first connecting shaft; A mounting beam, fixedly connected to the surface of the frame and rotatably connected to the first connecting shaft via a bearing seat; The mounting beam supports the first connecting shaft, and the first connecting shaft synchronously drives two auger blades to push the soil on the ridge into the grooves on both sides and cover the crushed straw.

6. The farmland straw crushing and post-processing device according to claim 4, characterized in that: The transmission mechanism comprises: A second connecting shaft is installed on the top of the frame near the connecting piece through a bearing seat; Two sets of walking wheels are provided, which are respectively fixedly connected to the two ends of the second connecting shaft and are located on both sides of the frame; A direct drive unit is disposed above the frame and mounted on the second connecting shaft; A first sub-drive unit, installed between the direct drive unit and the first connecting shaft; A second drive unit is installed between the direct drive unit and the sheave; The overall movement of the walking wheel following device drives the second connecting shaft to rotate, and the second connecting shaft transmits power to the first connecting shaft and the groove wheel through the first sub-drive unit and the second sub-drive unit.

7. The farmland straw crushing and post-processing device according to claim 6, characterized in that: The direct drive unit comprises: A first transmission wheel, fixedly connected to the outer wall of the second connecting shaft; a first transmission chain, mounted on an outer wall of the first transmission chain; A second transmission wheel is installed on the inner wall of the first transmission chain and is connected to the first sub-drive unit and the second sub-drive unit respectively; When the first transmission wheel rotates following the second connecting shaft, the power is synchronously transmitted through the first transmission chain and the second transmission wheel.

8. The farmland straw crushing and post-processing device according to claim 7, characterized in that: The first drive unit comprises: a third transmission wheel, mounted on the second transmission wheel; A second transmission chain is mounted on the outer wall of the third transmission wheel; a fourth transmission wheel, mounted on the inner wall of the third transmission wheel and fixedly connected to the outer wall of the first connecting shaft; The power of the second transmission wheel is transmitted to the fourth transmission wheel through the third transmission wheel and the second transmission chain, thereby driving the first connecting shaft.

9. The farmland straw crushing and post-processing device according to claim 8, characterized in that: The second drive unit comprises: a third connecting shaft, fixedly connected to inner walls of the second transmission wheel and the third transmission wheel respectively; Two commutators are provided, which are respectively fixedly connected to the two sides of the top of the frame and are respectively installed at the two ends of the third connecting shaft, and the output ends are fixedly connected to the surfaces of the two groove wheels located on the inner side; The power transmission between the second transmission wheel and the third transmission wheel is realized through the third connecting shaft, and the output direction is adjusted through the commutator to drive the collection unit.

10. A method for post-processing farmland straw after crushing, characterized in that: The following steps are involved: S1. The farm straw crushing and post-processing device is connected to the traction equipment through a connector; S2. Under the traction of the traction equipment, the furrowing plow opens a furrow on the surface of the farmland, and the soil opened by the furrowing plow is concentrated between the two furrows to form a ridge; S3. The walking wheel contacts the ground and drives the second connecting shaft to rotate, and the rotation of the second connecting shaft is transmitted to the third connecting shaft through the first transmission wheel, the first transmission chain and the second transmission wheel; S4. The third connecting shaft transmits power to the groove wheel through the commutator, which serves as the power of the collection unit. While the belt is rotating, it pushes the crushed straw in the field into the groove opened by the furrowing plow through the baffle installed on its outer wall; S5. The third connecting shaft transmits power to the first connecting shaft through the third transmission wheel, the second transmission chain and the fourth transmission wheel, and drives the auger blades to rotate to disperse the soil on the ridge inside the groove, thereby covering the straw inside the groove.

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