Straw smashing and field returning deep ploughing equipment

Abstract

The invention relates to the field of straw processing, in particular to straw smashing and field returning deep ploughing equipment, during straw smashing, a comb plate is adopted for conveying and discharging straw from a discharging plate, the comb plate moves in the inclined direction or the horizontal direction along the discharging plate to cut the straw, and the phenomenon that the straw is wound and blocks a discharging port in the straw conveying process occurs. And the condition of straw blockage is aggravated by adopting a comb plate scraping mode for wet straws. The comb plate is perpendicular to the upper portion of the discharging opening to discharge straw, the probability that straw fibers are hung on the wall of the discharging opening and twining occurs can be reduced, compared with oblique or horizontal discharging, continuous friction of the straw to the feeding frame or the discharging plate during oblique discharging is avoided, wet straw is not prone to adhering to the discharging opening during discharging, and the follow-up equipment cleaning frequency is reduced.

Description

Technical Field

[0001] This invention relates to the field of straw processing, specifically to a straw crushing, returning, and deep plowing equipment. Background Technology

[0002] Straw is a byproduct of agricultural production, such as wheat straw, corn straw, and rice straw. It cannot be used as animal feed. Moreover, burning straw causes air pollution. Therefore, it is necessary to crush the straw mechanically and place it in the field to fertilize the soil and increase yield. Straw contains moisture, which makes it easy for it to stick to the inner wall of the discharge port during the crushing and discharge process. This reduces the discharge port diameter, resulting in uneven discharge. Consequently, the straw that falls into the soil is also unevenly distributed, leading to uneven soil fertility and, in turn, uneven growth of the planted crops.

[0003] The following problems exist in the existing technology that have not been well resolved: When crushing straw, a comb plate is used to convey the straw from the discharge plate. The comb plate moves obliquely or horizontally along the discharge plate to cut the straw. During the conveying process, the straw may become entangled and blocked at the discharge port. Moreover, the use of a comb plate to scrape wet straw will exacerbate the straw blockage. Summary of the Invention

[0004] The purpose of this invention is to provide a straw crushing and returning-to-field deep plowing device to solve the problems mentioned in the background art. To achieve the above objective, this invention provides the following technical solution: a straw crushing and returning-to-field deep plowing device, comprising a feeding frame, wherein a crushing component for crushing straw is provided inside the feeding frame, and an inclined unloading plate is provided at the lower end of the feeding frame below the crushing component, the unloading plate being inclined towards the discharge port at the bottom of the feeding frame, and a comb plate unloading component is provided on the inner wall of the feeding frame facing the unloading plate, the comb plate unloading component being driven by the crushing component to intermittently and evenly discharge the straw on the unloading plate.

[0005] Preferably, the crushing component includes a drive motor fixedly connected to the outer wall of the feed frame, a drive rod connected to the main shaft of the drive motor, a drive gear fixedly connected to the end of the drive rod, a rotating rod provided on the feed frame adjacent to the drive rod, both the drive rod and the rotating rod being rotatably connected to the feed frame, and meshing rotating gears connected to the ends of the drive rod and the rotating rod, and both the rotating rod and the drive rod being provided with crushing rollers that rotate relative to each other to crush the straw.

[0006] Preferably, the comb plate unloading component includes a connecting component rotatably connected to the outer wall of the feeding frame, and a comb plate part for unloading the crushed straw is provided between the two connecting components. Adjusting components are provided on the outer wall of the feeding frame on the adjacent sides of the two connecting components to drive the comb plate part to clamp the straw and to uniformly discharge the straw during the unloading process.

[0007] Preferably, both connecting components include a rotating rod rotatably connected to the outer wall of the feeding frame. A rotating disk is fixedly connected to the rotating rod. A belt is sleeved between the rotating disk and the synchronous pulley on the drive rod. A rotating frame is fixedly connected to the end of the rotating rod away from the rotating disk. A connecting rod is also rotatably connected to the feeding frame. A fan disk is fixedly connected to the side of the connecting rod facing the rotating frame. An adjustment groove is provided on the fan disk. A connecting rod that can adjust the eccentric position of the fan disk is provided in the adjustment groove. The other end of the connecting rod away from the fan disk is connected to the rotating frame. The other end of the connecting rod away from the rotating frame extends into the feeding frame, and a swing frame is fixedly connected to its end. The comb plate is set on the inner wall of the feeding frame and is driven by the swing frame to clamp the straw on the unloading plate and discharge it evenly.

[0008] Preferably, the comb plate part includes a limiting rod rotatably connected to the inner wall of the feed frame, and a limiting post rotatably connected to one end of the two limiting rods facing each other. A support rod is slidably connected inside the limiting post, and a limiting frame is fixedly connected to one end of the support rod away from the limiting post. The outer walls of the two sides of the limiting frame are respectively connected to the swing frame on the two connecting parts, and a comb plate is connected to the side wall of the limiting frame facing the unloading plate.

[0009] Preferably, both adjusting components include an adjusting gear fixedly connected to the end of the limiting rod away from the limiting post. The outer wall of the fan disc has an arc groove, and a semi-toothed ring deflecting along the arc groove is connected to the arc groove. The semi-toothed ring meshes with the adjusting gear. When the fan disc rotates, the semi-toothed ring is stationary under the restriction of the adjusting gear. When the fan disc deflects and drives the limiting frame to approach the discharge port and the unloading plate, it drives the semi-toothed ring to move. The limiting rod has a spiral groove. An adjusting collar is slidably connected to the inner wall of the feeding frame, and the adjusting collar is threadedly connected to the spiral groove. A ball is embedded in the limiting frame, and one end of the ball extends toward the adjusting collar with a telescopic adjusting frame. The adjusting frame is rotatably connected to the adjusting collar. An adjusting rod extends toward the comb plate from the end of the ball away from the adjusting frame.

[0010] Preferably, the comb plate includes a support plate fixedly connected to the limiting frame, the support plate has a corresponding groove, and a clamping plate is slidably connected in the groove, and two adjusting rods are respectively embedded in the two clamping plates through balls.

[0011] Preferably, the comb plate includes a support plate, on which a wavy groove is correspondingly formed, and a sliding plate is slidably connected to the support plate. Two adjusting rods are respectively embedded in the two sliding plates through balls. A vertical groove is formed on the sliding plate, and pulley rollers are inserted into the vertical groove and the wavy groove. Clamping plates are connected to the pulley rollers.

[0012] Preferably, the clamping plate has serrations evenly distributed on the side surface facing the unloading plate.

[0013] Preferably, the two clamping plates are provided with staggered saw teeth, and when the two clamping plates move relative to each other, the saw teeth are staggered and there are gaps between adjacent saw teeth.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows: In this invention, the crushed straw is intermittently discharged when it is returned to the field. This intermittent discharge prevents the crushed straw from piling up at the outlet, allowing the straw fragments to be more evenly distributed on the ground surface and avoiding uneven coverage caused by excessive local accumulation.

[0015] In this invention, the comb plate is perpendicular to the top of the discharge port to discharge straw, which can reduce the probability of straw fibers sticking to the wall of the discharge port and avoid entanglement. Compared with oblique or horizontal discharge, it avoids continuous friction of straw against the feed frame or discharge plate when discharging at an oblique angle. When discharging wet straw, it is not easy to stick to the discharge port, reducing the frequency of subsequent equipment cleaning.

[0016] In this invention, the comb plate dynamically intercepts straw when it approaches the discharge plate, remains stationary during the conveying process, and then moves again to discharge the straw upon reaching the discharge port. This avoids the entanglement problem caused by the traditional static comb plate relying solely on squeezing and pushing the straw. The comb plate remains fixed during the pushing process, avoiding secondary crushing of the straw and fiber elongation caused by traditional continuous pushing. It moves again upon reaching the discharge port to ensure that the straw falls evenly. The straw is gradually released at the discharge port rather than being thrown all at once, preventing blockage of the discharge port.

[0017] In this invention, when clamping and unloading wet straw, the undulation of the corrugated groove causes the clamping plate to form multiple points of contact when it closes, increasing the pressure on the wet straw. When the clamping plate moves along the axial direction of the corrugated groove, it generates a scraping effect on the straw, peeling off the adhering soil and simultaneously squeezing out the water film, reducing the surface adhesion and increasing the clamping force on the wet straw.

[0018] In this invention, the surface of wet straw is smooth, making it easy to slip and fall off when held by a regular flat plate. The serrated edge breaks the water film on the surface of the straw during clamping, reducing adhesion.

[0019] In this invention, when the saw teeth move relative to each other, they generate a lateral shearing force on the sticky straw. When the saw teeth reach the discharge port, the wave-shaped groove drives the saw teeth to move, so that the straw can be detached from the saw teeth and avoid the straw from getting tangled on the saw teeth and obstructing the straw discharge. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 A three-dimensional structural cross-section of the present invention. Figure 1 ; Figure 3 This is a cross-sectional view of the three-dimensional structure in this invention. Figure 2 ; Figure 4 This is a three-dimensional structural diagram of the crushing component in this invention; Figure 5 This is a three-dimensional structural diagram of the comb plate unloading component in this invention; Figure 6 This is a partial three-dimensional structural diagram of the comb plate unloading component in this invention; Figure 7 This is a three-dimensional structural diagram of the connecting component and the adjusting component in this invention; Figure 8 This refers to the state in which the comb plate section of the present invention clamps the straw. Figure 1 ; Figure 9 This refers to the state in which the comb plate section of the present invention unloads the straw. Figure 2 ; Figure 10 This is a three-dimensional structural diagram of the comb plate and adjustment component in this invention; Figure 11 This is a three-dimensional structural diagram of the comb plate section in the second embodiment of the present invention; Figure 12 This is a three-dimensional structural diagram of the comb plate section in the third embodiment of the present invention; Figure 13 This is a three-dimensional structural diagram of the comb plate section in the fourth embodiment of the present invention.

[0021] In the diagram: 1. Feed frame; 11. Discharge plate; 12. Discharge port; 2. Crushing component; 21. Drive motor; 22. Drive rod; 23. Drive gear; 24. Rotating rod; 25. Rotating gear; 26. Crushing roller; 3. Comb plate discharge component; 4. Connecting component; 41. Rotating rod; 42. Rotary disc; 43. Belt; 44. Rotating frame; 45. Connecting rod; 46. Fan disc; 47. Adjusting groove; 48. Connecting rod; 49. Swing frame; 5. Comb plate section; 51. Limiting rod; 5 2. Limiting post; 53. Support rod; 54. Limiting frame; 6. Adjusting component; 61. Adjusting gear; 62. Arc groove; 63. Half tooth ring; 64. Spiral groove; 65. Adjusting collar; 66. Ball; 67. Adjusting frame; 68. Adjusting rod; 7. Comb plate; 71. Support plate; 72. Slide groove; 73. Clamping plate; 74. Wavy groove; 75. Sliding plate; 76. Vertical groove; 77. Pulley roller; 78. Clamping plate; 781. Sawtooth; 782. Sawtooth strip; 783. Gap. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] Example 1: Please see Figures 1 to 10 This invention provides a technical solution: a straw crushing and returning deep plowing device, including a feeding frame 1, a crushing component 2 for crushing straw is provided in the feeding frame 1, an inclined unloading plate 11 is provided at the lower end of the feeding frame 1 below the crushing component 2, the unloading plate 11 is inclined towards the discharge port 12 at the bottom of the feeding frame 1, a comb plate unloading component 3 is provided on the inner wall of the feeding frame 1 towards the unloading plate 11, the comb plate unloading component 3 is driven by the crushing component 2 to intermittently and evenly discharge the straw on the unloading plate 11.

[0024] In this embodiment, the crushing component 2 includes a drive motor 21 fixedly connected to the outer wall of the feeding frame 1. A drive rod 22 is connected to the upper shaft of the drive motor 21. A drive gear 23 is fixedly connected to the end of the drive rod 22. A rotating rod 24 is provided on the feeding frame 1 adjacent to the drive rod 22. Both the drive rod 22 and the rotating rod 24 are rotatably connected to the feeding frame 1. The ends of the drive rod 22 and the rotating rod 24 are connected to meshing rotating gears 25. Both the rotating rod 24 and the drive rod 22 are provided with crushing rollers 26 that rotate relative to each other to crush the straw. Straw is fed into the feeding frame 1 through the opening at the top of the feeding frame 1. The straw is placed between two crushing rollers 26. The drive motor 21 rotates, causing the drive rod 22 to rotate. The drive rod 22 and the rotating rod 24 rotate relative to each other under the drive of the rotating gear 25, so that the crushing rollers 26 can crush the straw between them. The relatively rotating crushing rollers 26 produce a dual action of shearing and extrusion, which can quickly crush the straw into fine and uniform particles. Even for straw with high moisture content or strong toughness, the relative rotation can effectively avoid clogging and ensure continuous operation of straw crushing.

[0025] In this embodiment, the comb plate unloading component 3 includes a connecting component 4 that is rotatably connected to the outer wall of the feeding frame 1. A comb plate part 5 for unloading the crushed straw is provided between the two connecting components 4. An adjustment component 6 is provided on the outer wall of the feeding frame 1 on the adjacent side of the two connecting components 4 to drive the comb plate part 5 to clamp the straw and to uniformly discharge the straw during the unloading process. Both connecting components 4 include a rotating rod 41 rotatably connected to the outer wall of the feeding frame 1. A rotating disk 42 is fixedly connected to the rotating rod 41. A belt 43 is sleeved between the rotating disk 42 and the synchronous pulley on the drive rod 22. A rotating frame 44 is fixedly connected to the end of the rotating rod 41 away from the rotating disk 42. A connecting rod 45 is also rotatably connected to the feeding frame 1. A fan disk 46 is fixedly connected to the side of the connecting rod 45 facing the rotating frame 44. An adjustment groove 47 is provided on the fan disk 46. A connecting rod 48 is provided in the adjustment groove 47 to adjust the eccentric position of the fan disk 46. The other end of the connecting rod 48 away from the fan disk 46 is connected to the rotating frame 44. The other end of the connecting rod 45 away from the rotating frame 44 extends into the feeding frame 1. A swing frame 49 is fixedly connected to its end. The comb plate part 5 is set on the inner wall of the feeding frame 1 and is driven by the swing frame 49 to clamp the straw on the unloading plate 11 and evenly drop it. While the straw is being crushed by the crushing component 2, the drive rod 22 rotates, which, through the belt 43, drives the rotating discs 42 on the two connecting components 4 to rotate the rotating rod 41. The rotating rod 41 drives the rotating frame 44 to rotate. When the rotating frame 44 rotates circumferentially, it pulls the connecting rod 48, which causes the fan disc 46 to swing back and forth. The fan disc 46 drives the connecting rod 45, which causes the swing frame 49 to swing back and forth. This causes the comb plate 5 to face the discharge plate 11, intermittently pushing the straw on the discharge plate 11 towards the discharge port 12. This intermittently discharges the crushed straw when returning it to the field, preventing the crushed straw from piling up at the outlet and making the straw fragments more evenly distributed on the ground surface, avoiding uneven coverage caused by excessive local accumulation.

[0026] In this embodiment, the comb plate part 5 includes a limiting rod 51 rotatably connected to the inner wall of the feed frame 1. One end of the two limiting rods 51 is rotatably connected to a limiting post 52. A support rod 53 is slidably connected inside the limiting post 52. One end of the support rod 53 away from the limiting post 52 is fixedly connected to a limiting frame 54. The outer walls on both sides of the limiting frame 54 are respectively connected to the swing frame 49 on the two connecting parts 4. A comb plate 7 is connected to the side wall of the limiting frame 54 facing the unloading plate 11. When the swing frame 49 reciprocates, the swing frame 49 drives the limiting frame 54 to move toward the unloading plate 11. During the movement of the limiting frame 54, the support rod 53 is slidably connected to the limiting post 52, so that the limiting post 52 deflects synchronously to limit the support rod 53. The limiting frame 54 extends toward the unloading plate 11, and its comb plate 7 clamps the straw on the unloading plate 11. After the comb plate 7 clamps the straw, as the swing frame 49 drives the limiting frame 54 to move toward the discharge port 12, the limiting frame 54 will make the comb plate 7 perpendicular to the top of the discharge port 12 under the restriction of the limiting post 52. The comb plate 7 is perpendicular to the discharge port 12 to discharge straw, which can reduce the probability of straw fibers sticking to the wall of the discharge port 12 and avoid tangling. Compared with oblique or horizontal discharge, it avoids continuous friction of straw on the feed frame 1 or discharge plate 11 when the straw is discharged at an oblique angle. When discharging wet straw, it is not easy to stick to the discharge port 12, reducing the frequency of subsequent equipment cleaning.

[0027] In this embodiment, both adjusting components 6 include adjusting gears 61 fixedly connected to the end of the limiting rod 51 away from the limiting post 52. An arc groove 62 is formed on the outer wall of the fan disk 46, and a semi-toothed ring 63 that deflects along the arc groove 62 is connected to the arc groove 62. The semi-toothed ring 63 meshes with the adjusting gear 61. When the fan disk 46 rotates, the semi-toothed ring 63 is in a stationary state under the restriction of the adjusting gear 61. When the fan disk 46 deflects and drives the limiting frame 54 to approach the discharge port 12 and the unloading plate 11, it drives the semi-toothed ring 63. The limiting rod 51 is provided with a spiral groove 64. An adjusting collar 65 is slidably connected to the inner wall of the feeding frame 1, and the adjusting collar 65 is threadedly connected to the spiral groove 64. A ball 66 is embedded in the limiting frame 54, and one end of the ball 66 extends toward the adjusting collar 65 and is provided with a telescopic adjusting frame 67, and the adjusting frame 67 is rotatably connected to the adjusting collar 65. An adjusting rod 68 extends toward the comb plate 7 from the end of the ball 66 away from the adjusting frame 67. When the fan disc 46 drives the limiting frame 54 to move the comb plate 7 toward the unloading plate 11 or the discharge port 12, the half-tooth ring 63 will remain in the arc groove 62 under the restriction of the adjusting gear 61 and will not deflect synchronously with the fan disc 46. When it approaches the unloading plate 11 or the discharge port 12, the end of the arc groove 62 will abut against the half-tooth ring 63, causing the half-tooth ring 63 to move synchronously. During the movement, the half-tooth ring 63 will drive the adjusting gear 61 to rotate. The adjusting gear 61 will drive the limiting rod 51 to drive the spiral groove 64 to drive the adjusting collar 65 to move along the axis. The adjusting frame 67 will drive the ball 66 to deflect, thereby enabling the adjusting rod 68 to clamp the straw on the unloading plate 11 with the comb plate 7. By the retention of the adjusting component 6, the comb plate 7 will clamp the straw when it approaches the unloading plate 11. During the movement, the comb plate 7 is in a clamping state. When it moves to the discharge port 12, it will gradually unload the clamped straw. When the comb plate 7 approaches the discharge plate 11, it dynamically cuts the straw and remains stationary during the conveying process. After reaching the discharge port 12, it moves again to discharge the straw, avoiding the entanglement problem caused by the traditional static comb plate 7 relying solely on squeezing and pushing the straw. During the pushing process, the comb plate 7 remains fixed to avoid secondary crushing of the straw and fiber elongation caused by traditional continuous pushing. After reaching the discharge port 12, it moves again to ensure that the straw falls evenly. The straw is gradually released at the discharge port 12, rather than being thrown all at once, to prevent the discharge port 12 from being blocked.

[0028] In this embodiment, the comb plate 7 includes a support plate 71 fixedly connected to the limiting frame 54. A corresponding sliding groove 72 is provided on the support plate 71, and a clamping plate 73 is slidably connected in the sliding groove 72. Two adjusting rods 68 are respectively embedded in the two clamping plates 73 through a ball 66. The two clamping plates 73 on the support plate 71 move relative to each other to clamp the straw on the discharge plate 11. When the straw is clamped and moved to the discharge port 12, the two gradually separate, and the straw is discharged into the field. The double clamping ensures that the straw does not scatter during the movement and prevents it from falling in the middle. The clamping plates 73 gradually separate from the discharge port 12, so that the straw falls evenly and continuously, avoiding instantaneous accumulation that could cause blockage of the discharge port 12.

[0029] Example 2: Based on Example 1, in order to further improve the effect of the comb plate 7 in uniformly discharging wet straw, such as... Figure 11 As shown, further improvements are made to Embodiment 1: In this embodiment, the comb plate 7 includes a support plate 71, on which a wavy groove 74 is correspondingly formed. A sliding plate 75 is slidably connected to the support plate 71. Two adjusting rods 68 are respectively embedded in the two sliding plates 75 through balls 66. A vertical groove 76 is formed on the sliding plate 75. A pulley roller 77 is inserted into the vertical groove 76 and the wavy groove 74. A clamping plate 78 is connected to the pulley roller 77. When the comb plate 7 moves toward the unloading plate 11, the two adjusting rods 68 drive the two sliding plates 75 to move relative to each other. During the movement of the sliding plates 75, the pulley rollers 77 located in the vertical groove 76 drive the clamping plate 78 to clamp the straw. During the clamping process, the clamping plate 78 moves synchronously along the axis under the restriction of the wavy groove 74. When clamping and unloading wet straw, the undulation of the wavy groove 74 causes the clamping plate 78 to form multi-point contact when closing, increasing the pressure on the wet straw. When the clamping plate 78 moves along the axial direction of the wavy groove 74, it scrapes the straw, peels off the adhering soil, and squeezes out the water film simultaneously, reducing the surface adhesion and increasing the clamping force on the wet straw.

[0030] Example 3: Based on Example 2, in order to further improve the clamping force of the clamping plate 78 on the wet straw, such as Figure 12 As shown, further improvements are made to Example 2: In this embodiment, the clamping plate 78 has serrations 781 evenly distributed on the side surface facing the unloading plate 11: The surface of wet straw is smooth, and it is easy to slip and fall off when held by a regular flat plate. The serrated 781 cuts through the water film on the surface of the straw when held, reducing the adhesion.

[0031] Example 4: Based on Example 3, in order to further improve the clamping force of the clamping plate 78 on wet straw, such as Figure 13 As shown, further improvements are made to Example 3: In this embodiment, two clamping plates 78 are provided with staggered sawtooth strips 782, and when the two clamping plates 78 move relative to each other, the sawtooth strips 782 are staggered, and there is a gap 783 between adjacent sawtooth strips 782. Two clamping plates 78 move relative to each other, and the serrated strips 782 interlock to clamp the straw. The wavy groove 74 causes the two clamping plates 78 to move and drive the serrated strips 782 to move closer together, reducing the gap 783 between them. Wet straw is prone to sticking together and leaves serious residue when unloading with traditional clamping plates 78. When the serrated strips 781 move relative to each other, they generate a lateral shearing force on the sticky straw. When the straw reaches the discharge port 12, the wavy groove 74 drives the serrated strips 782 to move, allowing the straw to fall off the serrated strips 782 and preventing the straw from getting tangled on the serrated strips 782 and obstructing the straw discharge.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A straw crushing and returning-to-field deep plowing device, comprising a feeding frame (1) and a crushing component (2), characterized in that: The bottom of the feed frame (1) is provided with an inclined unloading plate (11) and a discharge port (12). The crushing component (2) includes: The drive motor (21) is connected to the outer wall of the feed frame (1); A drive rod (22) is connected to the main shaft of a drive motor (21), and a drive gear (23) is provided at the end of the drive rod (22). The rotating rod (24) is arranged parallel to the driving rod (22) and meshes with the rotating gear (25); Crushing roller (26) is mounted on drive rod (22) and rotating rod (24) to crush straw; Comb plate unloading component (3) includes: The connecting component (4) is correspondingly connected to the feed frame (1), and the connecting component (4) is rotated by the drive rod (22); The comb plate (5) is connected between two connecting parts (4) to evenly distribute the crushed straw; Adjustment component (6) is connected to the side wall of feed frame (1) to control the timing of clamping action of comb plate part (5).

2. The straw crushing and returning-to-field deep plowing equipment according to claim 1, characterized in that: The connecting component (4) includes: The rotating rod (41) is connected to the drive rod (22) by a belt (43) via the rotating disk (42); The fan disc (46) is rotatably connected to the feed frame (1) via the connecting rod (45); The connecting rod (48) is connected at both ends to the rotating frame (44) and the fan plate (46) respectively; The swing frame (49) is fixed to the end of the connecting rod (45) and swings back and forth.

3. The straw crushing and returning-to-field deep plowing equipment according to claim 2, characterized in that: The comb plate section (5) includes: The limiting rod (51) is rotatably connected to the inner wall of the feed frame (1); The limiting post (52) is rotatably connected to the limiting rod (51); The limiting frame (54) is slidably connected to the limiting post (52) via the support rod (53); The comb plate (7) is set on the side wall of the limit frame (54) facing the unloading plate (11).

4. The straw crushing and returning-to-field deep plowing equipment according to claim 3, characterized in that: The adjusting component (6) includes: Adjusting gear (61) is fixed to the end of limiting rod (51); A semi-tooth ring (63) is located in the arc groove (62) of the fan plate (46) and intermittently meshes with the adjusting gear (61); A spiral groove (64) is formed on the limiting rod (51); Adjusting collar (65) is threaded into spiral groove (64); The adjusting frame (67) is connected to the limiting frame (54) and is rotatably connected to the adjusting collar (65); The adjusting rod (68) is connected to the adjusting bracket (67) via the ball (66).

5. The straw crushing and returning-to-field deep plowing equipment according to claim 4, characterized in that: The comb plate (7) includes: The support plate (71) is provided with a groove (72), and a clamping plate (73) for holding straw is slidably connected in the groove (72). The clamping plate (73) is connected to the adjusting rod (68).

6. The straw crushing and returning-to-field deep plowing equipment according to claim 4, characterized in that: The comb plate (7) includes: The support plate (71) is provided with a corrugated groove (74); A sliding plate (75) is slidably connected to a support plate (71), and a vertical groove (76) is provided on the sliding plate (75). The pulley roller (77) is inserted into the vertical groove (76) and the wavy groove (74), and the bottom is connected to the clamp plate (78); The sliding plate (75) is connected to the adjusting rod (68).

7. The straw crushing and returning-to-field deep plowing equipment according to claim 6, characterized in that: The clamp (78) has serrations (781) evenly distributed on one side surface.

8. The straw crushing and returning-to-field deep plowing equipment according to claim 7, characterized in that: The clamp (78) is provided with staggered serrated bars (782), and gaps (783) are formed between adjacent serrated bars (782).

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