Farmland residual mulching film screening equipment

Abstract

The invention relates to the field of residual mulching film screening equipment, and discloses farmland residual mulching film screening equipment which comprises mulching film collecting equipment, a collecting mechanism, a height adjusting mechanism, a separating mechanism and a recycling mechanism. An arranged collecting mechanism is linked with a height adjusting mechanism, mulching films with soil can be recycled, follow-up of the soil can be reduced to the maximum extent, rapid collection of the mulching films is facilitated, an arranged beating mechanism can scatter caked soil on the tops of the mulching films, meanwhile, the mulching films and the soil connected with the bottoms are loosened, and therefore the mulching films can be conveniently and rapidly collected. The cleaning degree during mulching film recycling is improved, the arranged separating mechanism can effectively separate the mulching film from soil, meanwhile, the mulching film is prevented from being broken, the recycling rate of the mulching film is increased, secondary recycling of mulching film fragments is avoided, the arranged recycling mechanism can effectively wind the mulching film separated from the soil, and the processing portability of the collected mulching film is improved.

Description

Technical Field

[0001] The invention relates to the field of residual mulch film screening equipment, in particular to residual mulch film screening equipment for farmland. Background Art

[0002] The farmland residual mulch film screening equipment is mainly used to recycle and process the residual mulch film in the farmland. It can effectively collect and process the mulch film remaining in the soil, reduce environmental pollution, and protect soil health and ecological environment. At the same time, recycling residual mulch film helps to reduce soil structure damage and soil fertility decline, maintain sustainable soil utilization, and remove residual mulch film can also reduce the adverse effects on crop growth and development and improve the crop growth environment.

[0003] Therefore, based on the existing residual mulch film screening equipment in farmland, in actual use, the mulch film cannot be effectively collected and recycled. Instead, the mulch film and part of the soil are directly shoveled away by force, and the mulch film and the soil are subsequently separated. However, the mulch film will be torn and damaged in the process, and it is easy to tear the mulch film into pieces and scatter them in the farmland, which is even more inconvenient to collect and process the residual mulch film. Especially in the process of vibration screening of the mulch film and part of the soil, part of the mulch film adhered to the soil will be thrown out along with the soil. For this reason, we propose a residual mulch film screening equipment for farmland. Summary of the invention

[0004] In view of the shortcomings of the prior art, the present invention provides a device for screening residual mulch film in farmland, which has the advantages of thorough screening and fast screening speed, and solves a series of problems such as slow screening and much screening residue.

[0005] To achieve the above object, the present invention provides the following technical solution: a device for screening residual mulch film in farmland, comprising: A ground film collecting device, the ground film collecting device is used to collect residual ground film, and the ground film collecting device comprises an agricultural tractor; A collecting mechanism, the collecting mechanism is used to separate the mulch film from the soil and collect the mulch film, the collecting mechanism comprises a collecting shell moving with the agricultural tractor; A beating mechanism, the beating mechanism is used to break up the soil agglomerated on the ground film, the beating mechanism comprises a beating frame rotatably connected to one side of the collecting shell, a plurality of beating springs are fixedly connected to the outside of the beating frame, a sweeping frame is slidably connected to one side of the collecting shell, a plurality of sweeping springs are fixedly connected to the bottom of the sweeping frame; A separation mechanism, which is used to separate the ground film and the soil, and comprises a shovel plate fixedly connected to the bottom of the collection shell, a separation belt is rotatably connected inside the collection shell, a plurality of separation soft needles are fixedly connected outside the separation belt, a plurality of separation grooves are opened on the top of the shovel plate, and a plurality of separation soft needles are slidably connected inside the corresponding separation grooves, and the middle of the separation grooves are arranged in a wave shape; A recovery mechanism, the recovery mechanism is used to collect the ground film after the soil is separated, the recovery mechanism comprises a collection block slidably connected to one side of the inner wall of the collection shell, one side of the collection block is rotatably connected to a collection rod, and the outside of the collection rod is fixedly connected to a plurality of collection hooks; A height adjustment mechanism is used to adjust the depth of one end of the shovel plate inserted into the soil, and the height adjustment mechanism includes two driving wheels that are rotatably connected to both sides of the collection shell.

[0006] Preferably, the beating mechanism also includes a connecting frame fixedly connected to one side of the collecting shell, and two annular rods are rotatably connected to the opposite side of the connecting frame. The opposite sides of the two annular rods are fixedly connected to the two ends of the beating spring, and a beating motor is fixedly installed on one side of the connecting frame, and the output end of the beating motor is fixedly connected to one end of the adjacent annular rod.

[0007] Preferably, the sweeping frame is threadedly screwed on the outside of the two annular rods, two limit rods are fixedly connected to the opposite side of the connecting frame, both ends of the sweeping frame are slidably connected to the outside of the limit rods, and a sweeping tension spring and a sweeping spring are respectively fixedly connected to the opposite side of the connecting frame, and the opposite ends of the sweeping tension spring and the sweeping spring are fixedly connected to one side of the adjacent sweeping frame.

[0008] Preferably, the separation mechanism also includes a separation motor fixedly mounted on one side of the collecting shell, the collecting shell is internally rotatably connected to two separation shafts, the output end of the separation motor is fixedly connected to one end of one of the separation shafts, a separation frame is fixedly connected to one side of the inner wall of the collecting shell, the separation belt is rotatably connected to the outside of the separation frame, a separation wheel is fixedly connected to the outside of the separation shaft, and the outside of the separation wheel is adapted to the inside of the separation belt.

[0009] Preferably, a spring plate is fixedly connected to the top of the inner wall of the collecting shell, a blower is fixedly connected to the top of the inner wall of the collecting shell, a unloading door is installed at one end of the collecting shell, a plurality of separation holes are opened on the top of the shovel plate, one end of the collecting shell is rotatably connected to a hook bracket, and one end of the hook bracket is hooked on the tail of an agricultural tractor.

[0010] Preferably, the recycling mechanism further comprises a first collecting motor fixedly mounted on one side of the collecting shell, the output end of the first collecting motor is fixedly connected to a collecting threaded rod, and the collecting block is threadedly screwed onto the outside of the collecting threaded rod.

[0011] Preferably, a stabilizing rod is fixedly connected to one side of the inner wall of the collecting shell, a stabilizing block is slidably connected to the outside of the stabilizing rod, the stabilizing block is slidably connected to one side of the inner wall of the collecting shell, a second collecting motor is fixedly installed on one side of the stabilizing block, and the output end of the second collecting motor is fixedly connected to one end of the collecting rod.

[0012] Preferably, the interior of the collecting block is fixedly connected to a sleeve rod, a pressure sensor is fixedly installed on the inner wall of the collecting block, the exterior of the sleeve rod is movably sleeved with a pressure spring, one end of the pressure spring is fixedly connected to the output end of the pressure sensor, the other end of the pressure spring is fixedly connected to a pressure block, the pressure block is slidably sleeved on the exterior of the sleeve rod, and one side of the pressure block is rotatably connected to a pressure wheel.

[0013] Preferably, the height adjustment mechanism also includes a height adjustment motor fixedly installed on both sides of the collecting shell, and height adjustment blocks are slidably connected on both sides of the collecting shell. The output end of the height adjustment motor is fixedly connected to a height adjustment threaded rod, and the height adjustment block is threadedly screwed on the outside of the height adjustment threaded rod. The two driving wheels at one end of the collecting shell away from the beating mechanism are respectively rotatably connected to the outside of the nearby height adjustment blocks.

[0014] Compared with the prior art, the present invention provides a device for screening residual mulch film in farmland, which has the following beneficial effects: 1. The invention can quickly recycle the mulch film of the farmland through the mulch film collection equipment, and can recycle the mulch film with soil through the linkage of the collection mechanism and the height adjustment mechanism. The linkage of the collection mechanism and the height adjustment mechanism can also minimize the tracking of soil to facilitate the rapid collection of the mulch film, and the patting mechanism can break up the soil agglomerated on the top of the mulch film, and at the same time loosen the soil connecting the mulch film and the bottom, thereby improving the cleanliness of the mulch film when it is recovered.

[0015] 2. The invention can effectively separate the ground film from the soil through the separation mechanism, while preventing the ground film from being broken, improving the ground film recovery rate, and avoiding secondary recovery of ground film fragments. The ground film separated from the soil can be effectively rolled up through the recovery mechanism, thereby improving the portability of the collected ground film. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a three-dimensional structural schematic diagram of the collecting mechanism part of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure inside the collecting mechanism of the present invention; Figure 4 It is a schematic diagram of the three-dimensional structure of the separation shaft part of the present invention; Figure 5 It is a schematic diagram of the three-dimensional structure of the shovel plate part of the present invention; Figure 6 It is a three-dimensional structural schematic diagram of the flapping mechanism part of the present invention; Figure 7 It is a three-dimensional structural schematic diagram of the height adjustment mechanism part of the present invention; Figure 8 It is a three-dimensional structural schematic diagram of the recovery mechanism part of the present invention; Fig. 9 for Figure 8 A schematic diagram of the enlarged structure of part A; Fig.10 It is a schematic diagram of the three-dimensional structure of the second collecting motor part of the present invention.

[0017] In the figure: 1. Ground film collecting equipment; 2. Agricultural tractor; 3. Collecting mechanism; 4. Beating mechanism; 5. Separating mechanism; 6. Recycling mechanism; 7. Height adjustment mechanism; 8. Hook rack; 9. Collecting shell; 10. Driving wheel; 11. Unloading door; 12. Connecting rack; 13. Ring rod; 14. Beating motor; 15. Beating rack; 16. Beating spring; 17. Sweeping tension spring; 18. Sweeping spring; 19. Sweeping rack; 20. Limiting rod; 21. Sweeping spring; 22. Height adjustment motor; 23. Height adjustment threaded rod ; 24. Height adjustment block; 25. Shovel plate; 26. Separation shaft; 27. Separation belt; 28. Separation soft needle; 29. ​​Separation wheel; 30. Elastic plate; 31. Blower; 32. Separation slot; 33. Collecting rod; 34. Collecting hook; 35. First collecting motor; 36. Collecting threaded rod; 37. Collecting block; 38. Stabilizing rod; 39. Stabilizing block; 40. Second collecting motor; 41. Sleeve rod; 42. Pressure sensor; 43. Pressure spring; 44. Pressure block; 45. Pressure wheel; 46. Separation rack. DETAILED DESCRIPTION

[0018] 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.

[0019] As introduced in the background technology, there are deficiencies in the prior art. In order to solve the above technical problems, the present application proposes a device for screening residual mulch film in farmland.

[0020] In a typical implementation of the present application, Figure 1-10 As shown, a device for screening residual mulch film in farmland comprises: A ground film collecting device 1, the ground film collecting device 1 is used to collect residual ground film, and the ground film collecting device 1 comprises an agricultural tractor 2; The collecting mechanism 3 is used for separating the ground film and the soil and collecting the ground film. The collecting mechanism 3 includes a collecting shell 9 that moves with the agricultural tractor 2. One end of the collecting shell 9 is rotatably connected to a hook bracket 8. One end of the hook bracket 8 is hooked on the tail of the agricultural tractor 2.

[0021] When the residual mulch film on the farmland needs to be collected, the collection shell 9 is hooked on the tail of the agricultural tractor 2 through the hook bracket 8. At this time, the agricultural tractor 2 is started, and the collection shell 9 can move with the agricultural tractor 2.

[0022] The flapping mechanism 4 is used to break up the soil agglomerated on the ground film. The flapping mechanism 4 includes a flapping frame 15 rotatably connected to one side of the collecting shell 9, a plurality of flapping springs 16 are fixedly connected to the outside of the flapping frame 15, a sweeping frame 19 is slidably connected to one side of the collecting shell 9, and a plurality of sweeping springs 21 are fixedly connected to the bottom of the sweeping frame 19; The flapping mechanism 4 also includes a connecting frame 12 fixedly connected to one side of the collecting shell 9, and two annular rods 13 are rotatably connected to the opposite side of the connecting frame 12, and the opposite sides of the two annular rods 13 are fixedly connected to the two ends of the flapping spring 16, and a flapping motor 14 is fixedly installed on one side of the connecting frame 12, and the output end of the flapping motor 14 is fixedly connected to one end of the adjacent annular rod 13; The sweeping frame 19 is threadedly connected to the outside of the two annular rods 13, and two limit rods 20 are fixedly connected to the opposite side of the connecting frame 12. Both ends of the sweeping frame 19 are slidably connected to the outside of the limit rods 20, and the opposite side of the connecting frame 12 is fixedly connected to a sweeping tension spring 17 and a sweeping spring 18, respectively. The opposite ends of the sweeping tension spring 17 and the sweeping spring 18 are fixedly connected to one side of the adjacent sweeping frame 19.

[0023] By setting the above-mentioned structure, the soil agglomerated on the top of the ground film can be broken up, so as to facilitate separation from the ground film. Specifically, before the ground film is recovered, the flapping motor 14 is started first, and the output end of the flapping motor 14 drives the annular rod 13 to rotate, and the rotation of the annular rod 13 drives the flapping frame 15 to rotate, and the rotation of the flapping frame 15 drives the flapping spring 16 to rotate. The ground film and the soil on the top of the ground film are flapped by the flapping spring 16 to break up the soil agglomerated on the top of the ground film, and at the same time, the soil connecting the ground film and the bottom is loosened, so as to facilitate the separation of the ground film from the soil in the later stage. At the same time, the use of the flapping spring 16 can avoid hard contact with the ground film and reduce the possibility of damage to the ground film. More specifically, during the rotation of the flapping spring 16, after a brief contact with the ground film and the soil, it will touch and bend the limit rod 20, which can effectively prevent the surface of the ground film from being scratched due to the rotation of the flapping spring 16, so that the force transmitted by it is mostly flapping vibration force. At the same time, the flapping spring 16 continues to rotate. When the flapping spring 16 is separated from the limit rod 20, the flapping spring 16 rebounds and can shake off the soil adhered to itself, effectively maintaining the breaking effect; It is worth mentioning that, while the flapping spring 16 is breaking up the soil lumps on the top of the ground film and loosening the soil connecting the ground film to the bottom, the sweeping frame 19 moves along the threads on the outside of the annular rod 13. Since the threads on the outside of the annular rod 13 are arranged in a ring shape, the sweeping frame 19 moves repeatedly in the length direction of the flapping frame 15. The sweeping frame 19 slides on the outside of the limiting rod 20, and the lumps on the top of the ground film are swept away by a number of sweeping springs 21, thereby improving the cleanliness of the collected ground film. The sweeping spring 18 and the sweeping tension spring 17 are set to improve the running smoothness of the sweeping frame 19.

[0024] The separation mechanism 5 is used to separate the ground film and the soil. The separation mechanism 5 includes a shovel plate 25 fixedly connected to the bottom of the collection shell 9. The collection shell 9 is internally rotatably connected with a separation belt 27. The outside of the separation belt 27 is fixedly connected with a plurality of separation soft needles 28. The top of the shovel plate 25 is provided with a plurality of separation grooves 32. The plurality of separation soft needles 28 are slidably connected to the inside of the corresponding separation grooves 32. The middle of the separation grooves 32 is arranged in a wave shape. The separation mechanism 5 also includes a separation motor fixedly installed on one side of the collecting shell 9. The interior of the collecting shell 9 is rotatably connected to two separation shafts 26. The output end of the separation motor is fixedly connected to one end of one of the separation shafts 26. A separation frame 46 is fixedly connected to one side of the inner wall of the collecting shell 9. The separation belt 27 is rotatably connected to the outside of the separation frame 46. A separation wheel 29 is fixedly connected to the outside of the separation shaft 26. The outside of the separation wheel 29 is adapted to the inside of the separation belt 27. A spring plate 30 is fixedly connected to the top of the inner wall of the collecting shell 9. A blower 31 is fixedly connected to the top of the inner wall of the collecting shell 9. A plurality of separation holes are provided on the top of the shovel plate 25.

[0025] By setting the above-mentioned structure, the ground film can be separated from the soil. Specifically, during the movement of the collecting shell 9, the ground film and part of the soil are shoveled into the top of the shovel plate 25. At this time, the separation motor is started, and the output end of the separation motor drives the separation shaft 26 fixedly connected thereto to rotate. The rotation of the separation shaft 26 drives the separation wheel 29 to rotate. The rotation of the separation wheel 29 drives the separation belt 27 to slide on the outside of the separation frame 46. The movement of the separation belt 27 drives a number of separation soft needles 28 to move, and pierce the ground film with soil, and drive the ground film to move. In the process of driving the ground film to move, the separation soft needles 28 move along the trajectory of the separation groove 32, and drive the ground film to shake, shake the soil on the ground film, and drop it back to the ground through the grooves on both sides of the shovel plate 25; It is worth mentioning that this method can effectively shake the spread mulch film, separate the soil without breaking the mulch film, improve work efficiency and work safety, and avoid the occurrence of a lot of dust. More specifically, when the ground film moves to one end of the shovel plate 25, the blower 31 is started to blow the ground film off the outside of the separation soft needles 28 to prevent the ground film from being hooked on the outside of the separation soft needles 28 and affecting the recovery of the ground film, and the fallen ground film is blown forward.

[0026] A recovery mechanism 6 is used to collect the ground film after the soil is separated. The recovery mechanism 6 includes a collection block 37 slidably connected to one side of the inner wall of the collection shell 9. One side of the collection block 37 is rotatably connected to a collection rod 33. The outside of the collection rod 33 is fixedly connected to a plurality of collection hooks 34. The recovery mechanism 6 also includes a first collection motor 35 fixedly mounted on one side of the collection shell 9, the output end of the first collection motor 35 is fixedly connected to a collection threaded rod 36, and a collection block 37 is screwed on the outside of the collection threaded rod 36; A stabilizing rod 38 is fixedly connected to one side of the inner wall of the collecting shell 9, and a stabilizing block 39 is slidably connected to the outside of the stabilizing rod 38. The stabilizing block 39 is slidably connected to one side of the inner wall of the collecting shell 9, and a second collecting motor 40 is fixedly installed on one side of the stabilizing block 39. The output end of the second collecting motor 40 is fixedly connected to one end of the collecting rod 33; A sleeve rod 41 is fixedly connected to the inside of the collecting block 37, a pressure sensor 42 is fixedly installed on the inner wall of the collecting block 37, a pressure spring 43 is movably sleeved on the outside of the sleeve rod 41, one end of the pressure spring 43 is fixedly connected to the output end of the pressure sensor 42, and the other end of the pressure spring 43 is fixedly connected to a pressure block 44, the pressure block 44 is slidably sleeved on the outside of the sleeve rod 41, and one side of the pressure block 44 is rotatably connected to a pressure wheel 45; A discharge door 11 is installed at one end of the collecting shell 9 .

[0027] By setting the above-mentioned structure, the ground film can be recycled. Specifically, after the soil is separated from the ground film, the second collecting motor 40 is started at this time, and the output end of the second collecting motor 40 drives the collecting rod 33 to rotate, and the ground film blown off by the hair dryer 31 is hooked and wound on the outside of the collecting rod 33 through the collecting hook 34. In the process of winding the ground film, the ground film gradually thickens and presses the pressure block 44. At this time, the pressure block 44 moves inside the collecting block 37, the pressure spring 43 retracts, and the pressure sensor 42 detects the pressure increase. At this time, the first collecting motor 35 is started, and the output end of the first collecting motor 35 drives the collecting threaded rod 36 to rotate, and drives the collecting block 37 threadedly connected to the outside of the collecting threaded rod 36 to move, so that more ground film can be wound on the outside of the collecting rod 33. After the ground film collection is completed, the wound ground film can be unloaded through the unloading door 11, effectively avoiding the uneven winding and collection of the ground film and the flying of the ground film.

[0028] A height adjustment mechanism 7, which is used to adjust the depth of one end of the shovel plate 25 inserted into the soil. The height adjustment mechanism 7 includes two driving wheels 10 that are rotatably connected to both sides of the collecting shell 9; The height adjustment mechanism 7 also includes a height adjustment motor 22 fixedly installed on both sides of the collecting shell 9, and height adjustment blocks 24 are slidably connected to both sides of the collecting shell 9. The output end of the height adjustment motor 22 is fixedly connected to a height adjustment threaded rod 23, and the height adjustment block 24 is threadedly screwed on the outside of the height adjustment threaded rod 23. The two driving wheels 10 at one end of the collecting shell 9 away from the beating mechanism 4 are respectively rotatably connected to the outside of the nearby height adjustment blocks 24.

[0029] By setting the above-mentioned structure, the depth of shoveling the ground film can be adjusted. Specifically, the ground film has different burial depths according to different plants. The height adjustment motor 22 is started according to the buried depth of the ground film. The output end of the height adjustment motor 22 rotates to drive the height adjustment threaded rod 23 to rotate, and drives the height adjustment block 24 to slide outside the height adjustment threaded rod 23, thereby driving the drive wheel 10 thereon to slide outside the collecting shell 9, so that the angle and height of the two ends of the collecting shell 9 can be adjusted, and the buried depth of the ground film can be effectively adaptively adjusted.

[0030] The working principle of the present invention is as follows: when it is necessary to collect the ground film in the farmland, the collection shell 9 is hooked on the tail of the agricultural tractor 2 through the hook bracket 8, and the ground film has different burial depths according to different plants, and the height adjustment motor 22 is started, and the output end of the height adjustment motor 22 rotates to drive the height adjustment threaded rod 23 to rotate, and drives the height adjustment block 24 to slide outside the height adjustment threaded rod 23, thereby driving the driving wheel 10 thereon to slide outside the collection shell 9, so that the angle and height of the two ends of the collection shell 9 can be adjusted, and the depth of the ground film burial can be effectively adaptively adjusted; After the height adjustment is completed, the flapping motor 14 is started, and the output end of the flapping motor 14 drives the annular rod 13 to rotate, and the rotation of the annular rod 13 drives the flapping frame 15 to rotate, and the rotation of the flapping frame 15 drives the flapping spring 16 to rotate, and the flapping spring 16 is used to flap the ground film and the soil on the top of the ground film to break up the soil agglomerated on the top of the ground film, and at the same time, the soil connecting the ground film and the bottom is loosened, so as to facilitate the separation of the ground film and the soil in the later stage; During the movement of the collecting shell 9, the ground film and part of the soil are shoveled into the top of the shovel plate 25. At this time, the separation motor is started, and the output end of the separation motor drives the separation shaft 26 fixedly connected thereto to rotate. The rotation of the separation shaft 26 drives the separation wheel 29 to rotate. The rotation of the separation wheel 29 drives the separation belt 27 to slide on the outside of the separation frame 46. The movement of the separation belt 27 drives a number of separation soft needles 28 to move, and pierce the ground film with soil, and drive the ground film to move. In the process of driving the ground film to move, the separation soft needles 28 move along the trajectory of the separation groove 32, and drive the ground film to shake, shake the soil on the ground film, and drop it back to the ground through the grooves on both sides of the shovel plate 25, completing the separation of the soil and the ground film. After the soil and the ground film are separated, the second collecting motor 40 is started at this time. The output end of the second collecting motor 40 drives the collecting rod 33 to rotate, and the ground film blown off by the hair dryer 31 is hooked and wound on the outside of the collecting rod 33 through the collecting hook 34. In the process of winding the ground film, the ground film gradually thickens and presses the pressure block 44. At this time, the pressure block 44 moves inside the collecting block 37, the pressure spring 43 retracts, and the pressure sensor 42 detects the pressure increase. At this time, the first collecting motor 35 is started, and the output end of the first collecting motor 35 drives the collecting threaded rod 36 to rotate, and drives the collecting block 37 threadedly connected to the outside of the collecting threaded rod 36 to move, so that more ground film can be wound on the outside of the collecting rod 33. After the ground film collection is completed, the wound ground film can be unloaded through the unloading door 11.

[0031] 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 device for screening residual mulch film in farmland, characterized by: include, A ground film collecting device (1), the ground film collecting device (1) being used to collect residual ground film, the ground film collecting device (1) comprising an agricultural tractor (2); A collecting mechanism (3), the collecting mechanism (3) being used to separate the mulch film from the soil and collect the mulch film, the collecting mechanism (3) comprising a collecting shell (9) moving with the agricultural tractor (2); A beating mechanism (4), the beating mechanism (4) is used to break up soil caked on the ground film, the beating mechanism (4) comprises a beating frame (15) rotatably connected to one side of the collecting shell (9), a plurality of beating springs (16) are fixedly connected to the outside of the beating frame (15), a sweeping frame (19) is slidably connected to one side of the collecting shell (9), and a plurality of sweeping springs (21) are fixedly connected to the bottom of the sweeping frame (19); A separation mechanism (5), the separation mechanism (5) is used to separate the ground film and the soil, the separation mechanism (5) comprises a shovel plate (25) fixedly connected to the bottom of the collection shell (9), the interior of the collection shell (9) is rotatably connected to a separation belt (27), the exterior of the separation belt (27) is fixedly connected to a plurality of separation soft needles (28), the top of the shovel plate (25) is provided with a plurality of separation grooves (32), the plurality of separation soft needles (28) are slidably connected to the interior of corresponding separation grooves (32), and the middle of the separation grooves (32) are arranged in a wave shape; A recovery mechanism (6), the recovery mechanism (6) being used to collect the ground film after the soil is separated, the recovery mechanism (6) comprising a collection block (37) slidably connected to one side of the inner wall of the collection shell (9), one side of the collection block (37) being rotatably connected to a collection rod (33), and the outside of the collection rod (33) being fixedly connected to a plurality of collection hooks (34); A height adjustment mechanism (7) is used to adjust the depth at which one end of the shovel plate (25) is inserted into the soil, and the height adjustment mechanism (7) comprises two driving wheels (10) which are rotatably connected to two sides of the collection shell (9) respectively.

2. The device for screening residual mulch film in farmland according to claim 1, characterized in that: The flapping mechanism (4) further comprises a connecting frame (12) fixedly connected to one side of the collecting shell (9); two annular rods (13) are rotatably connected to the opposite side of the connecting frame (12); the opposite sides of the two annular rods (13) are fixedly connected to the two ends of a flapping spring (16); a flapping motor (14) is fixedly mounted on one side of the connecting frame (12); the output end of the flapping motor (14) is fixedly connected to one end of the adjacent annular rod (13).

3. The device for screening residual mulch film in farmland according to claim 2, characterized in that: The sweeping frame (19) is threadedly connected to the outside of the two annular rods (13); two limiting rods (20) are fixedly connected to the opposite side of the connecting frame (12); both ends of the sweeping frame (19) are slidably connected to the outside of the limiting rods (20); a sweeping tension spring (17) and a sweeping spring (18) are fixedly connected to the opposite side of the connecting frame (12); and the opposite ends of the sweeping tension spring (17) and the sweeping spring (18) are fixedly connected to one side of the adjacent sweeping frame (19).

4. The device for screening residual mulch film in farmland according to claim 1, characterized in that: The separation mechanism (5) further comprises a separation motor fixedly mounted on one side of the collection shell (9); two separation shafts (26) are rotatably connected inside the collection shell (9); an output end of the separation motor is fixedly connected to one end of one of the separation shafts (26); a separation frame (46) is fixedly connected to one side of the inner wall of the collection shell (9); the separation belt (27) is rotatably connected to the outside of the separation frame (46); a separation wheel (29) is fixedly connected to the outside of the separation shaft (26); and the outside of the separation wheel (29) is adapted to fit the inside of the separation belt (27).

5. The device for screening residual mulch film in farmland according to claim 1, characterized in that: The top of the inner wall of the collecting shell (9) is fixedly connected to a spring plate (30), the top of the inner wall of the collecting shell (9) is fixedly connected to a blower (31), one end of the collecting shell (9) is provided with a discharge door (11), the top of the shovel plate (25) is provided with a plurality of separation holes, one end of the collecting shell (9) is rotatably connected to a hook bracket (8), and one end of the hook bracket (8) is hooked to the tail of the agricultural tractor (2).

6. The device for screening residual agricultural mulch film according to claim 1, characterized in that: The recovery mechanism (6) further comprises a first collection motor (35) fixedly mounted on one side of the collection shell (9); an output end of the first collection motor (35) is fixedly connected to a collection threaded rod (36); and the collection block (37) is threadedly screwed onto the outside of the collection threaded rod (36).

7. The device for screening residual mulch film in farmland according to claim 6, characterized in that: A stabilizing rod (38) is fixedly connected to one side of the inner wall of the collection shell (9), a stabilizing block (39) is slidably connected to the outside of the stabilizing rod (38), the stabilizing block (39) is slidably connected to one side of the inner wall of the collection shell (9), a second collection motor (40) is fixedly mounted on one side of the stabilizing block (39), and an output end of the second collection motor (40) is fixedly connected to one end of the collection rod (33).

8. The device for screening residual mulch film in farmland according to claim 7, characterized in that: The interior of the collecting block (37) is fixedly connected to a sleeve rod (41), the inner wall of the collecting block (37) is fixedly mounted with a pressure sensor (42), the exterior of the sleeve rod (41) is movably sleeved with a pressure spring (43), one end of the pressure spring (43) is fixedly connected to an output end of the pressure sensor (42), the other end of the pressure spring (43) is fixedly connected to a pressure block (44), the pressure block (44) is slidably sleeved on the exterior of the sleeve rod (41), and one side of the pressure block (44) is rotatably connected to a pressure wheel (45).

9. The device for screening residual mulch film in farmland according to claim 1, characterized in that: The height adjustment mechanism (7) further comprises a height adjustment motor (22) fixedly mounted on both sides of the collection shell (9); height adjustment blocks (24) are slidably connected to both sides of the collection shell (9); an output end of the height adjustment motor (22) is fixedly connected to a height adjustment threaded rod (23); the height adjustment block (24) is threadedly connected to the outside of the height adjustment threaded rod (23); and two driving wheels (10) at one end of the collection shell (9) away from the beating mechanism (4) are respectively rotatably connected to the outside of the adjacent height adjustment blocks (24).

Images