A fully automatic corn harvester returning to the field reversing lifting device

Abstract

The invention relates to the technical field of returning corn stalks to fields, and specifically to a fully automatic corn harvester returning corn stalks to fields reversing and lifting device, comprising a conveying cylinder, partitions are fixedly installed at the lower ends of the front and rear inner walls of the conveying cylinder, a conveying member is commonly installed on the opposite sides of the two partitions, a lifting member is installed at the upper end of the conveying cylinder, a spreading unit is installed in the conveying cylinder and above the conveying member, and a flipping unit is installed at the right end of the conveying cylinder; the invention is used to spread the crushed stalks on the soil surface, and the invention can first spread the crushed stalks evenly so that the crushed stalks are evenly spread on the soil surface, thereby ensuring the improvement effect on soil fertility, and at the same time the invention can also evenly mix the soil and corn stalks, thereby increasing the decomposition efficiency of the stalks, and at the same time the invention uses an up and down shaking method to shake the stalks loose, thereby preventing the stalks from agglomerating and affecting the air permeability and water permeability of the soil, thereby ensuring the soil quality after returning to the field.

Description

Technical Field

[0001] The invention relates to the technical field of returning corn stalks to fields, and in particular to a full-automatic corn harvester returning corn stalks to fields reversing and lifting device. Background Art

[0002] A corn harvester is an agricultural machine specially used for harvesting corn. During the corn harvesting process, since corn stalks are rich in nutrients, corn harvesters are usually equipped with straw crushing devices, returning devices, reversing lifting devices and rotary tillage devices, so that the corn harvester can crush the stalks and return them to the fields, thereby improving the fertility of the soil. The straw crushing device can crush the corn stalks into smaller pieces, and transport the crushed straw to the returning device, so that the returning device can spread the crushed straw on the soil surface, and mix the straw and soil through the rotary tillage device. When the harvester needs to reverse to adjust its position, the reversing lifting device can lift the returning device to avoid unnecessary damage to the land.

[0003] The following problems exist when returning straw to the field: 1. After the returning device in the corn harvester spreads the straw, the returning device is lifted up by a lifting device to avoid damage to the returning device. However, when spreading the straw, it is impossible to ensure that the straw is evenly spread on the soil surface, resulting in too much straw in some areas and too little straw in other areas, which in turn affects the effect of improving soil fertility; 2. Since the straw has a certain water content, the crushed straw may stick together and form lumps, and larger lumps may affect the air permeability and water permeability of the soil, thereby reducing the soil quality after returning to the field; 3. After the straw and soil are mixed, it is impossible to ensure that the straw and soil are evenly mixed, resulting in local accumulation of straw in the soil, and the accumulated straw takes a longer time to decompose, thereby reducing the decomposition efficiency of the straw. Summary of the invention

[0004] In order to solve the above technical problems, the present invention adopts the following technical scheme: a fully automatic corn harvester returning to the field reversing and lifting device, including a conveying cylinder, partitions are fixedly installed at the lower ends of the front and rear inner walls of the conveying cylinder, a conveying member is commonly installed on the opposite sides of the two partitions, a lifting member is installed on the upper end of the conveying cylinder, a spreading unit is installed inside the conveying cylinder and above the conveying member, and a flipping unit is installed on the right end of the conveying cylinder; a feed port is provided in the middle of the left end of the conveying cylinder, an inclined plate with the right end tilted downward is fixedly installed on the left inner wall of the conveying cylinder and located at the lower end of the feed port, and the right end of the inclined plate is located above the conveying member, a plurality of guide grooves evenly arranged on the left and right are provided in the middle of the upper inner wall of the conveying cylinder, and a discharge port is provided on the right side of the lower end of the conveying cylinder; the spreading unit includes guide plates slidably installed in the guide grooves on the left and right sides, and the upper ends of the plurality of guide plates and the conveying member A driving mechanism for driving the guide plate to move left and right is installed between the cylinders, a transmission plate is installed for sliding forward and backward on the right side of the lower end of the guide plate, a plurality of spreading rods evenly arranged front and back are fixedly installed on the lower end of the transmission plate, and a shaking mechanism for shaking the straw to loosen it is installed on the left side of the lower end of the guide plate; the flipping unit includes a top plate fixedly installed on the upper right end of the conveying cylinder, two fixed plates symmetrically arranged front and back are fixedly installed in the middle of the lower end of the top plate, a rotating shaft is installed on the opposite sides of the two fixed plates for common rotation through a No. 1 motor, a plurality of transmission mechanisms evenly arranged circumferentially are installed on the outside of the rotating shaft, a plurality of buckets evenly arranged front and back are installed on the outside of the transmission mechanism, the transmission mechanism is used to drive the bucket to rotate, and shaking mechanisms for cooperating with the transmission mechanism to evenly mix the soil and straw in the bucket are installed on the opposite sides of the two fixed plates.

[0005] Preferably, the driving mechanism includes a U-shaped plate fixedly mounted on the upper end of the guide plate, the vertical sections of the U-shaped plate all slide through the guide groove, and the U-shaped plate and the conveying cylinder are slidably connected left and right, and multiple U-shaped plates are jointly installed with an adjusting screw by threaded cooperation, and the adjusting screw and the conveying cylinder are rotatably connected, and the right end of the adjusting screw is connected to the output shaft of the No. 2 motor fixedly mounted in the conveying cylinder.

[0006] Preferably, a corrugated groove is opened in the middle of the inner wall of the guide groove, and a matching column is fixedly installed on the upper end of the transmission plate. The upper end of the matching column slides through the guide plate and is slidably installed in the corrugated groove. The corrugated groove is used to cooperate with the matching column to drive the transmission plate to move back and forth.

[0007] Preferably, the shaking mechanism includes an L-shaped plate fixedly installed on the left side of the lower end of the guide plate, a connecting plate is fixedly installed on the left end of the lower side of the transverse section of the L-shaped plate, a square plate is installed on the lower end of the connecting plate for sliding up and down through a downward pressure spring, a plurality of L-shaped shaking rods are fixedly installed on the lower end of the square plate, and the upper side of the left end of the transverse section of the shaking rod is set as an inclined surface.

[0008] Preferably, a matching rod with an elastic telescopic structure is fixedly installed on the upper sides of both front and rear ends of the square plate, and the right side of the end of the matching rod away from the square plate is set as a slope. A plurality of lifting blocks evenly arranged on the left and right are fixedly installed at the positions corresponding to the matching rods on the upper ends of the two partitions, and the right sides of the upper ends of the lifting blocks are set as slopes for driving the matching rods to move upward.

[0009] Preferably, the transmission mechanism includes a plurality of transmission rods fixedly mounted on the outside of the rotating shaft and evenly arranged front and back, the installation positions of the transmission rods correspond one-to-one to the buckets, and one end of the transmission rod away from the rotating shaft is arranged as an elastic telescopic structure and fixedly connected to the corresponding bucket, a connecting rod is fixedly mounted between the telescopic ends of two adjacent transmission rods, and a round rod is fixedly mounted at the middle of the ends of the telescopic ends of the two transmission rods located on the front and rear sides that are away from each other.

[0010] Preferably, the shaking mechanism includes fixed rings fixedly mounted on opposite sides of the two fixed plates, and a plurality of circumferentially evenly arranged arc-shaped lower pressure blocks are fixedly mounted on the upper sides of the left ends of the opposite sides of the two fixed rings, and inclined surfaces are arranged on the side of the lower pressure blocks close to the end of the rotating shaft and opposite to the rotation direction of the rotating shaft, and the lower pressure blocks are used to drive the round rod to move in the direction close to the rotating shaft, and the lower ends of the opposite sides of the two fixed rings are fixedly mounted with arc plates, and the arc plates are used to cooperate with the round rod to prevent the telescopic end of the transmission rod from being compressed.

[0011] Preferably, two extension spring rods with elastic telescopic structures are fixedly installed on the right side of the lower end of the top plate, and smoothing rollers are installed on opposite sides of the lower ends of the two extension spring rods to rotate together.

[0012] The beneficial effects of the present invention are: 1. The present invention evenly spreads the crushed straw by setting a spreading unit, so that the crushed straw can be evenly spread on the soil surface, ensuring the improvement of soil fertility. At the same time, the present invention drives the spreading rod to move back and forth by setting a corrugated groove and a matching column, so that the spreading rod can move left and right and forward and backward at the same time, further ensuring that the straw is evenly spread.

[0013] 2. The present invention drives the bucket to dig soil and straw by setting a rotating shaft, and when the bucket rotates from the left limit position to the upper limit position, the present invention drives the telescopic end of the transmission rod to vibrate back and forth along the radial direction of the rotating shaft by setting a plurality of lower pressure blocks and round rods, thereby making the bucket corresponding to the transmission rod vibrate back and forth along the radial direction of the rotating shaft, so that the bucket can mix the soil and straw inside it evenly, thereby achieving even mixing of the soil and straw and increasing the decomposition efficiency of the straw.

[0014] 3. The present invention sets the left side of the horizontal section of the shaking rod as an inclined plane so that the straw can be moved to the upper end of the horizontal section of the shaking rod. At the same time, the present invention sets a matching rod and a lifting block to drive the shaking rod to shake up and down, so that the shaking rod can shake the straw at the upper end of the horizontal section, thereby preventing the straw from agglomerating and affecting the air permeability and water permeability of the soil, thereby ensuring the soil quality after returning to the field. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The present invention is further described below in conjunction with the accompanying drawings and embodiments.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0017] Figure 2 It is a cross-sectional view of the present invention.

[0018] Figure 3 It is a schematic diagram of the three-dimensional structure of the spreading unit after the conveying cylinder and the guide plate are partially removed according to the present invention.

[0019] Figure 4 It is a three-dimensional structural schematic diagram of the spreading unit part structure after the conveying cylinder, the guide plate and the transmission plate are partially removed in the present invention.

[0020] Figure 5 It is a three-dimensional structural schematic diagram of the spreading unit part structure after the guide plate and the connecting plate are partially removed in the present invention.

[0021] Figure 6 It is a three-dimensional structural schematic diagram of the lifting block, the square plate and the matching rod after a part of the conveying cylinder is cut away according to the present invention.

[0022] Figure 7 It is a cross-sectional view of the flip unit of the present invention.

[0023] Figure 8 It is a three-dimensional structural schematic diagram of the flip unit structure after the top plate and the rotating shaft are partially removed in the present invention.

[0024] Figure numerals: 1, conveying cylinder; 11, conveying member; 12, lifting member; 13, feeding port; 14, inclined plate; 15, discharging port; 16, partition; 161, lifting block; 17, corrugated groove; 2, spreading unit; 21, guide plate; 22, driving mechanism; 221, U-shaped plate; 222, adjusting screw; 223, No. 2 motor; 23, transmission plate; 231, matching column; 24, spreading rod; 25, shaking mechanism; 251, L-shaped plate; 252, connecting Connecting plate; 253, downward pressure spring; 254, square plate; 255, shaking rod; 256, matching rod; 3, flip unit; 31, top plate; 311, top extension spring rod; 312, smoothing roller; 32, fixed plate; 33, No. 1 motor; 34, rotating shaft; 35, transmission mechanism; 351, transmission rod; 352, connecting rod; 353, round rod; 36, bucket; 37, shaking mechanism; 371, fixing ring; 372, downward pressure block; 373, arc plate. DETAILED DESCRIPTION

[0025] The embodiments described below are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. If no specific techniques or conditions are specified in the embodiments, the techniques or conditions described in the literature in the art or the product instructions shall be followed.

[0026] See also Figure 1 and Figure 2 A fully automatic corn harvester returning to the field reversing lifting device includes a conveying cylinder 1, partitions 16 are fixedly installed at the lower ends of the front and rear inner walls of the conveying cylinder 1, a conveying member 11 is commonly installed on the opposite sides of the two partitions 16, a lifting member 12 is installed at the upper end of the conveying cylinder 1, a spreading unit 2 is installed in the conveying cylinder 1 and above the conveying member 11, and a flipping unit 3 is installed at the right end of the conveying cylinder 1.

[0027] It should be noted that the transmission member 11 in the present invention uses a conveyor belt to continuously transport the crushed straw to the right, and the rotating shaft of the transmission belt is rotatably installed on the opposite sides of the two partitions 16. The lifting member 12 in the present invention uses a hydraulic cylinder to drive the conveying cylinder 1 to move upward, and the left end of the conveying cylinder 1 is connected to the straw crushing device of the corn harvester.

[0028] The present invention is used to spread the crushed straw on the soil surface, and the present invention can first spread the crushed straw evenly so that the crushed straw is evenly spread on the soil surface, ensuring the improvement effect on soil fertility. At the same time, the present invention can also evenly mix the soil and corn straw, thereby increasing the decomposition efficiency of the straw; specifically, when returning the straw to the field, first control the lifting member 12 to drive the conveying cylinder 1 to move downward, then convey the crushed straw to the conveying cylinder 1, then start the conveying member 11 to convey the crushed straw to the right, and at the same time start the spreading unit 2 to spread the straw on the conveying member 11 so that the straw can be evenly spread on the soil surface, and finally start the turning unit 3 to turn the straw and soil so that the straw and soil are evenly mixed. When the straw returning operation is completed or when the corn harvester is reversed, the conveying cylinder 1 is driven to move upward to the initial position by controlling the lifting member 12.

[0029] See also Figure 2-Figure 4 A feed port 13 is provided in the middle of the left end of the conveying cylinder 1, and an inclined plate 14 with its right end tilted downward is fixedly installed on the left inner wall of the conveying cylinder 1 and located at the lower end of the feed port 13, and the right end of the inclined plate 14 is located above the conveying member 11, and a plurality of guide grooves evenly arranged left and right are provided in the middle of the upper inner wall of the conveying cylinder 1, and a discharge port 15 is provided on the right side of the lower end of the conveying cylinder 1; wherein, the right side of the lower inner wall of the feed port 13 is tilted downward; the spreading unit 2 includes a guide plate 21 slidably installed in the guide groove left and right, and a driving mechanism 22 for driving the guide plate 21 to move left and right is jointly installed between the upper ends of the plurality of guide plates 21 and the conveying cylinder 1, a transmission plate 23 is slidably installed forward and backward on the right side of the lower end of the guide plate 21, and a plurality of spreading rods 24 evenly arranged front and back are fixedly installed on the lower end of the transmission plate 23, and a shaking mechanism 25 for shaking the straw to loosen is installed on the left side of the lower end of the guide plate 21.

[0030] It should be noted that the feed port 13 in the present invention is connected to the straw crushing device.

[0031] The spreading unit 2 is used to spread the straw on the conveyor 11 evenly; specifically, the crushed straw is first conveyed from the feed port 13 to the conveyor tube 1, and the crushed straw can move along the inclined surface and inclined plate 14 of the feed port 13 to the conveyor 11, and then the conveyor 11 is started to drive the crushed straw to move to the right, and then the driving mechanism 22 is started to drive multiple guide plates 21 to move to the left, and the guide plate 21 drives the shaking mechanism 25 to move to the left so that the shaking mechanism 25 shakes the straw to loosen it, and at the same time, the guide plate 21 drives the spreading rod 24 to move to the left through the transmission plate 23, so that the spreading rod 24 will The shaken and loose straw on the conveying member 11 is evenly spread, and finally the conveying member 11 drives the spread straw to move to the right to the right extreme position so that the straw can fall out of the conveying cylinder 1 from the discharge port 15, so that the straw can be evenly spread on the soil; when the guide plate 21 moves to the left extreme position, the control driving mechanism 22 drives multiple guide plates 21 to return to the initial position to the right, and the control driving mechanism 22 drives multiple guide plates 21 to move to the left again, so that the spreading rod 24 continues to spread the straw on the conveying member 11, and multiple spreading rods 24 are provided, so as to achieve thorough spreading of the straw.

[0032] See also Figure 3 The driving mechanism 22 includes a U-shaped plate 221 fixedly installed on the upper end of the guide plate 21, the vertical sections of the U-shaped plate 221 all slide through the guide groove, and the U-shaped plate 221 and the conveying cylinder 1 are slidably connected to the left and right, and multiple U-shaped plates 221 are jointly installed with an adjusting screw 222 by threaded cooperation, and the adjusting screw 222 and the conveying cylinder 1 are rotatably connected, and the right end of the adjusting screw 222 is connected to the output shaft of the second motor 223 fixedly installed in the conveying cylinder 1.

[0033] The driving mechanism 22 is used to drive the guide plate 21 to move left and right; specifically, the second motor 223 is started to drive the adjusting screw 222 to rotate back and forth, so that the adjusting screw 222 and the U-shaped plate 221 cooperate to drive the guide plate 21 corresponding to the U-shaped plate 221 to move back and forth left and right.

[0034] See also Figure 4 and Figure 5 A corrugated groove 17 is provided in the middle of the inner wall of the guide groove, and a matching column 231 is fixedly installed on the upper end of the transmission plate 23. The upper end of the matching column 231 slides through the guide plate 21 and is slidably installed in the corrugated groove 17. The corrugated groove 17 is used to cooperate with the matching column 231 to drive the transmission plate 23 to move back and forth.

[0035] When the transmission plate 23 drives the spreading rod 24 to move left and right, the transmission plate 23 drives the spreading rod 24 to move back and forth under the cooperation of the corrugated groove 17 and the matching column 231, so that the spreading rod 24 can move back and forth while moving left and right, increasing the spreading effect of the spreading rod 24 on the straw, and further ensuring that the straw is evenly spread.

[0036] See also Figure 3 , Figure 5 and Figure 6 The shaking mechanism 25 includes an L-shaped plate 251 fixedly installed on the left side of the lower end of the guide plate 21, a connecting plate 252 is fixedly installed on the left end of the lower side of the transverse section of the L-shaped plate 251, and a square plate 254 is installed on the lower end of the connecting plate 252 for sliding up and down through a downward pressure spring 253, and a plurality of shaking rods 255 of L-shaped structure are fixedly installed on the lower end of the square plate 254, and the upper side of the left end of the transverse section of the shaking rod 255 is set as an inclined surface; the upper sides of the front and rear ends of the square plate 254 are fixedly installed with matching rods 256 of elastic telescopic structure, and the right side of the end of the matching rod 256 away from the square plate 254 is set as an inclined surface, and the upper ends of the two partitions 16 corresponding to the matching rods 256 are fixedly installed with a plurality of lifting blocks 161 evenly arranged on the left and right, and the upper right sides of the lifting blocks 161 are set as inclined surfaces for driving the matching rods 256 to move upward.

[0037] The shaking mechanism 25 is used to shake the straw to loosen it, so as to prevent the straw from agglomerating and affecting the air permeability and water permeability of the soil, thereby ensuring the quality of the soil after returning to the field; when the guide plate 21 moves to the left, the guide plate 21 drives the connecting plate 252 to move to the left through the L-shaped plate 251, so that the connecting plate 252 drives the corresponding multiple shaking rods 255 to move to the left through the square plate 254, and under the action of the inclined surface of the transverse section of the shaking rod 255, the straw can move to the upper end of the transverse section of the shaking rod 255, and at the same time, when the matching rod 256 moves to the corresponding position of the lifting block 161, the matching rod 256 The square plate 254 is driven to move upward by the inclined surface of the lifting block 161. When the matching rod 256 and the lifting block 161 are separated, the square plate 254 can quickly pop down and return to its initial position under the action of the downward pressure spring 253. The lifting block 161 is provided with multiple lateral sections, so that the transverse section of the shaking rod 255 can continuously shake the straw at its upper end up and down, thereby loosening the straw and removing the lumps of straw. When the guide plate 21 moves to the right, the matching rod 256 can shrink inward under the action of its inclined surface, and thus should not affect the movement of the guide plate 21.

[0038] See also Figure 1 , Figure 2 and Figure 7 The turning unit 3 includes a top plate 31 fixedly installed on the upper right end of the conveying cylinder 1, and two fixed plates 32 symmetrically arranged front and back are fixedly installed in the middle of the lower end of the top plate 31. A rotating shaft 34 is installed on the opposite sides of the two fixed plates 32 for common rotation through a No. 1 motor 33. A plurality of transmission mechanisms 35 evenly arranged circumferentially are installed on the outer side of the rotating shaft 34. A plurality of buckets 36 evenly arranged front and back are installed on the outer side of the transmission mechanism 35. The transmission mechanism 35 is used to drive the bucket 36 to rotate, and a shaking mechanism 37 for cooperating with the transmission mechanism 35 to evenly mix the soil and straw in the bucket 36 is installed on the opposite sides of the two fixed plates 32.

[0039] The turning unit 3 is used to turn over the soil and straw; specifically, when the control lifting member 12 drives the conveying drum 1 to move downward, the conveying drum 1 finally drives the bucket 36 to move downward through the top plate 31 and the fixed plate 32. When returning the straw to the field, the rotating shaft 34 is driven to rotate clockwise by starting the No. 1 motor 33, so that the rotating shaft 34 drives the bucket 36 to rotate through the transmission mechanism 35. When the bucket 36 rotates to the lower limit position, the bucket 36 can dig the soil and straw into the bucket 36 and drive the soil and straw to rotate. When the bucket 36 rotates to the right limit position, the opening of the bucket 36 faces downward, so that the soil and straw in the bucket 36 can fall under the action of gravity, thereby turning the soil and straw. When the bucket 36 rotates from the left limit position to the upper limit position, the shaking mechanism 37 can cooperate with the transmission mechanism 35 to drive the bucket 36 to shake, so that the soil and straw in the bucket 36 are evenly mixed.

[0040] See also Figure 7 and Figure 8 The transmission mechanism 35 includes a plurality of transmission rods 351 fixedly mounted on the outside of the rotating shaft 34 and evenly arranged in front and back. The installation positions of the transmission rods 351 correspond to the buckets 36 one by one, and the ends of the transmission rods 351 away from the rotating shaft 34 are set as elastic telescopic structures and fixedly connected to the corresponding buckets 36. A connecting rod 352 is fixedly mounted between the telescopic ends of two adjacent transmission rods 351. A round rod 353 is fixedly mounted at the middle of the telescopic ends of the two transmission rods 351 located on the front and rear sides. The fixing ring 371 on the opposite side of the fixing plate 32 has a plurality of circumferentially evenly arranged arc-shaped pressing blocks 372 fixedly installed on the upper sides of the left ends of the opposite sides of the two fixing rings 371. The pressing blocks 372 are close to one end of the rotating shaft 34 and are arranged on the side opposite to the rotation direction of the rotating shaft 34. The pressing blocks 372 are used to drive the round rod 353 to move toward the direction close to the rotating shaft 34. The lower ends of the opposite sides of the two fixing rings 371 are fixedly installed with arc-shaped plates 373. The arc-shaped plates 373 are used to cooperate with the round rod 353 to prevent the telescopic end of the transmission rod 351 from being compressed.

[0041] The transmission mechanism 35 is used to drive the bucket 36 to rotate, and the shaking mechanism 37 is used to cooperate with the transmission mechanism 35 to evenly mix the soil and straw in the bucket 36, thereby increasing the decomposition efficiency of the straw; specifically, when the rotating shaft 34 rotates, the rotating shaft 34 drives the bucket 36 to rotate through the transmission rod 351. When the bucket 36 rotates from the right extreme position to the left extreme position of the rotating shaft 34, the round rod 353, under the action of the arc plate 373, makes the telescopic ends of the two transmission rods 351 located on the front and rear sides unable to be compressed, and under the action of the connecting rod 352, the telescopic ends of the multiple transmission rods 351 arranged in the front and rear cannot be compressed, preventing the telescopic ends of the transmission rod 351 from being compressed when the bucket 36 digs soil and straw, resulting in the bucket 36 being unable to dig soil and straw into the bucket 36.

[0042] When the bucket 36 rotates from the left limit position to the upper limit position, the round rod 353 rotates to the corresponding position of the lower pressure block 372. Under the action of the inclined surface of the lower pressure block 372, the lower pressure block 372 drives the telescopic end of the transmission rod 351 to be compressed toward the direction close to the rotating shaft 34 through the round rod 353. When the lower pressure block 372 and the round rod 353 are separated, the telescopic end of the transmission rod 351 pops out in the direction away from the rotating shaft 34 under the action of its elasticity. There are multiple lower pressure blocks 372, which makes the bucket 36 shake back and forth radially along the rotating shaft 34, so that the bucket 36 can mix the soil and straw inside it evenly.

[0043] See also Figure 1 and Figure 2 Two elastic extension spring rods 311 are fixedly installed on the right side of the lower end of the top plate 31, and smoothing rollers 312 are installed on the opposite sides of the lower ends of the two extension spring rods 311 to rotate together.

[0044] When the top plate 31 moves downward, the top plate 31 drives the smoothing roller 312 to move downward and fit against the soil surface through the top spring rod 311, so that the smoothing roller 312 can roll the turned soil and straw flat, ensuring that the turned soil surface is flat.

[0045] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A fully automatic corn harvester returning to the field reversing lifting device, comprising a conveying cylinder (1), the lower ends of the front and rear inner walls of the conveying cylinder (1) are fixedly mounted with partitions (16), the opposite sides of the two partitions (16) are commonly mounted with a transmission member (11), and the upper end of the conveying cylinder (1) is mounted with a lifting member (12), characterized in that: A spreading unit (2) is installed inside the conveying cylinder (1) and above the conveying member (11), and a flipping unit (3) is installed at the right end of the conveying cylinder (1); A feed port (13) is provided in the middle of the left end of the conveying cylinder (1), an inclined plate (14) whose right end is arranged to tilt downward is fixedly installed on the left inner wall of the conveying cylinder (1) and located below the feed port (13), and the right end of the inclined plate (14) is located above the conveying member (11), a plurality of guide grooves evenly arranged left and right are provided in the middle of the upper inner wall of the conveying cylinder (1), and a discharge port (15) is provided on the right side of the lower end of the conveying cylinder (1); The spreading unit (2) comprises a guide plate (21) slidably mounted in a guide groove, a driving mechanism (22) for driving the guide plate (21) to move left and right is installed between the upper ends of the plurality of guide plates (21) and the conveying cylinder (1), a transmission plate (23) is slidably mounted forward and backward on the right side of the lower end of the guide plate (21), a plurality of spreading rods (24) evenly arranged forward and backward are fixedly mounted on the lower end of the transmission plate (23), and a shaking mechanism (25) for shaking and loosening the straw is installed on the left side of the lower end of the guide plate (21); The turning unit (3) comprises a top plate (31) fixedly mounted on the upper right end of the conveying cylinder (1); two fixed plates (32) symmetrically arranged front and back are fixedly mounted on the middle part of the lower end of the top plate (31); a rotating shaft (34) is mounted on the opposite sides of the two fixed plates (32) for common rotation via a No. 1 motor (33); a plurality of transmission mechanisms (35) evenly arranged in the circumferential direction are mounted on the outer side of the rotating shaft (34); a plurality of buckets (36) evenly arranged front and back are mounted on the outer side of the transmission mechanism (35); the transmission mechanism (35) is used to drive the bucket (36) to rotate; and a shaking mechanism (37) is mounted on the opposite sides of the two fixed plates (32) for cooperating with the transmission mechanism (35) to evenly mix soil and straw in the bucket (36); A corrugated groove (17) is provided in the middle of the inner wall of the guide groove, a matching column (231) is fixedly installed on the upper end of the transmission plate (23), the upper end of the matching column (231) slides through the guide plate (21) and is slidably installed in the corrugated groove (17), and the corrugated groove (17) is used to cooperate with the matching column (231) to drive the transmission plate (23) to move back and forth; The driving mechanism (22) comprises a U-shaped plate (221) fixedly mounted on the upper end of the guide plate (21); the vertical sections of the U-shaped plate (221) all slide through the guide grooves; the U-shaped plate (221) and the conveying cylinder (1) are slidably connected to each other; the plurality of U-shaped plates (221) are all commonly mounted with an adjusting screw (222) by means of threaded engagement; the adjusting screw (222) and the conveying cylinder (1) are rotatably connected; the right end of the adjusting screw (222) is connected to the output shaft of a second motor (223) fixedly mounted in the conveying cylinder (1).

2. The fully automatic corn harvester returning to the field reversing lifting device according to claim 1 is characterized in that: The shaking mechanism (25) comprises an L-shaped plate (251) fixedly mounted on the left side of the lower end of the guide plate (21); a connecting plate (252) is fixedly mounted on the left side of the lower side of the transverse section of the L-shaped plate (251); a square plate (254) is slidably mounted on the lower end of the connecting plate (252) via a downward pressure spring (253); a plurality of shaking rods (255) of L-shaped structures are fixedly mounted on the lower end of the square plate (254); and the upper side of the left end of the transverse section of the shaking rod (255) is arranged as an inclined surface.

3. The fully automatic corn harvester returning to the field reversing and lifting device according to claim 2 is characterized in that: The upper sides of both front and rear ends of the square plate (254) are fixedly installed with matching rods (256) of an elastic telescopic structure, and the right side of one end of the matching rod (256) away from the square plate (254) is set as an inclined surface, and the upper ends of the two partitions (16) corresponding to the matching rods (256) are fixedly installed with a plurality of lifting blocks (161) evenly arranged on the left and right, and the right sides of the upper ends of the lifting blocks (161) are set as inclined surfaces for driving the matching rods (256) to move upward.

4. The fully automatic corn harvester returning to the field reversing and lifting device according to claim 1 is characterized in that: The transmission mechanism (35) comprises a plurality of transmission rods (351) fixedly mounted on the outside of the rotating shaft (34) and evenly arranged in the front and rear directions. The mounting positions of the transmission rods (351) correspond to the buckets (36) one by one. One end of the transmission rod (351) away from the rotating shaft (34) is provided with an elastic telescopic structure and is fixedly connected to the corresponding bucket (36). A connecting rod (352) is fixedly mounted between the telescopic ends of two adjacent transmission rods (351). A round rod (353) is fixedly mounted at the middle of the ends of the telescopic ends of the two transmission rods (351) located on the front and rear sides that are away from each other.

5. The fully automatic corn harvester returning to the field reversing and lifting device according to claim 4 is characterized in that: The shaking mechanism (37) includes a fixing ring (371) fixedly mounted on opposite sides of the two fixing plates (32); a plurality of circumferentially uniformly arranged arc-shaped lower pressing blocks (372) are fixedly mounted on the upper sides of the left ends of the opposite sides of the two fixing rings (371); an inclined surface is arranged on the side of the lower pressing block (372) close to the rotating shaft (34) and opposite to the rotating direction of the rotating shaft (34); the lower pressing block (372) is used to drive the round rod (353) to move in a direction close to the rotating shaft (34); an arc-shaped plate (373) is fixedly mounted on the lower ends of the opposite sides of the two fixing rings (371); the arc-shaped plate (373) is used to cooperate with the round rod (353) to prevent the telescopic end of the transmission rod (351) from being compressed.

6. The fully automatic corn harvester returning to the field reversing and lifting device according to claim 1 is characterized in that: Two extension spring rods (311) of elastic telescopic structure are fixedly installed on the right side of the lower end of the top plate (31), and smoothing rollers (312) are rotatably installed on the opposite sides of the lower ends of the two extension spring rods (311).

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