Cotton field straw crushing and mulch film cleaning and returning machine

Abstract

The invention discloses a cotton field straw crushing and mulch film cleaning and returning machine, comprising a frame, a guide assembly, a circular saw blade, a roller, a crushing device, a film cutting assembly, a picking mechanism, a material transfer mechanism and a baler. The circular saw blade is used to cut the root of the straw. A pair of rollers can squeeze each other and convey the straw. The film cutting assembly comprises a film cutting knife and guide rails arranged in the left and right directions. The picking mechanism comprises a chain and multiple rows of picking claws. The material transfer mechanism comprises a horizontal rotating shaft and at least one row of material transfer claws. When the returning machine moves forward, the circular saw blade can effectively rotate and cut the straw; the cut straw is instantly chopped by the blade, and the crushing effect is very good; since there is a certain distance between the circular saw blade and the cotton field and they are kept parallel, the mulch film will not be damaged; the picking claws dig up the mulch film to separate the mulch film from the soil, the mulch film is cut by the film cutting knife, and then collected to the baler, the mulch film will not be crushed, and the mulch film has the value of repeated use.

Description

Technical Field

[0001] The invention relates to agricultural machinery and equipment, in particular to a cotton field straw harvesting, crushing and mulch film cleaning machine. Background Art

[0002] Cotton straw is the general term for the stem and leaf parts of mature cotton, usually referring to the remaining part of cotton after the seeds are harvested. The harvesting and crushing of cotton straw can play a role in returning the field to increase fertilizer, and the recycled straw can also be used as a renewable resource. In addition, in cotton planting, a large amount of ground film is needed to conserve moisture. After the cotton is harvested in autumn, a large amount of ground film is left on the cotton field. If it is not recovered or removed in time, the ground film will be turned into the ground during the spring land preparation. Over time, a large amount of residual film will accumulate under the land. As we all know, residual film is difficult to degrade in the soil. Over time, it will form very serious white pollution, reducing the yield and quality of subsequent cotton planting. Therefore, it is very important to recycle the ground film in cotton fields.

[0003] Cotton is usually planted in rows. Harvesters can harvest and crush multiple rows of straw at the same time. Current harvesters use centrifugal flingers to directly cut the straw in the cotton field. However, cotton straw is made of wood and is relatively hard. Centrifugal flingers can only break and remove branches and leaves, and most of the trunks are still standing upright on the field, making it impossible to harvest the straw. In addition, the straw crushing effect is not good.

[0004] In addition, as the centrifugal blades crush the straw, the mulch film is also broken at the same time, causing the mulch film to be broken into pieces and difficult to pick up into the recycling bin. The mulch film is then circulated back to the cotton field with the spike teeth, and only a small amount of the mulch film can be recycled. Even if a small amount of broken mulch film is recycled, it is difficult to reuse it. Summary of the invention

[0005] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a cotton field straw harvesting, crushing and mulch film cleaning machine, which can effectively harvest and crush cotton straw, and can also effectively recycle the mulch film without damaging the mulch film, and the recycled mulch film can still be reused.

[0006] According to the embodiment of the present invention, the cotton field straw shredding and mulch film cleaning and returning operation machine includes a frame, and the frame is equipped with: a guide assembly installed on the frame, which is used to gather the scattered straw together; a circular saw blade and a roller, the center of the circular saw blade is rotatably connected to the frame through a vertical rotating shaft, which is used to cut the root of the straw, and the frame is vertically rotatably connected to a pair of rollers above the circular saw blade, and the pair of rollers can squeeze and transport the straw to each other; a shredding device includes a shredding bin and a turntable rotatably installed in the shredding bin, the shredding bin has an inlet for inputting straw and an outlet for outputting shredded straw, and the turntable is circumferentially equipped with a plurality of blades and a plurality of wind blades, and the blades are relative to the The wind blades are closer to the feed port in the axial direction of the turntable; the film cutting assembly includes a film cutting knife and a guide rail arranged in the left and right directions, and the film cutting knife is slidably connected to the guide rail; the picking mechanism includes a chain and multiple rows of picking claws installed on the chain, each row of the picking claws includes a plurality of spaced picking claws, and the chain is used to drive each row of the picking claws to dig up the ground film and push the ground film backward; the material transfer mechanism includes a horizontal rotating shaft rotatably installed on the frame, and the horizontal rotating shaft is circumferentially equipped with at least one row of material transfer claws, each row of the material transfer claws includes a plurality of spaced turning claws, and each row of the material transfer claws can be staggered and avoided with any row of the picking claws to transfer the ground film; the baler is used to collect and bundle the transferred ground film.

[0007] At least the following beneficial effects are provided: when the field returning machine moves forward, it first harvests, and the guide assembly quickly gathers the scattered straw and brings it close to the circular saw blade, and under the forced squeezing of the roller and along with the movement of the frame, the root of the straw is sent to the circular saw blade, and the circular saw blade can effectively rotate and cut the straw; the cut straw continues to be transported by the roller to the feeding port of the crushing bin, and the blade and the wind blade rotate at high speed driven by the turntable, and the straw is first chopped by the blade instantly, and the chopped straw is blown to the discharge port and discharged under the action of the wind blade, and the crushing effect is very good; since there is a certain distance between the circular saw blade and the cotton field and they remain parallel, the mulch film will not be damaged; after the straw on the cotton field has just been harvested and crushed, the picking claws extend into the surface soil of the cotton field, and the picking claws are driven by the chain in a circular manner, so that a row of picking claws on the front lower side of the chain can be moved to The mulch film is dug up to separate it from the soil, dragged forward to accumulate it and then lifted up, the film cutting knife can move quickly horizontally along the guide rail to cut off the part of the mulch film that is lifted up but still connected to the ground, the row of picking claws continues to rotate and pushes the mulch film backward, and then the material transfer claws transfer the mulch film on the picking claws to the baler for baling; since each row of picking claws and material transfer claws are arranged in multiple intervals and can be staggered, the mulch film is usually in the shape of long strips and spans multiple picking claws or material transfer claws, so that each row of material transfer claws can smoothly unload the mulch film from the picking claws, and then transfer the mulch film to the baler for recycling, and then combined with the forward movement of the frame, the mulch film is collected to the baler, the mulch film is not easy to tear off in the middle, and the mulch film will not be crushed, so that relatively complete mulch film can be picked up and baled, the mulch film has the value of reuse and can continuously enter the next film collection cycle.

[0008] According to some embodiments of the present invention, a transition material box located between the material transfer mechanism and the baler is also installed on the frame. The transition material box is connected front to back and includes a bottom plate. The bottom plate is tilted downward from front to back, and a plurality of avoidance gaps are spaced apart at the front end of the bottom plate for the material transfer claws to rotate through.

[0009] According to some embodiments of the present invention, a blower is also installed on the frame, and the blower is located in front of the transition material box and blows air toward the bottom plate and the material transfer claws.

[0010] According to some embodiments of the present invention, the picking mechanism also includes a driven sprocket and a driving sprocket distributed front to back, the chain is transmission-connected to the driving sprocket and the driven sprocket, the driving sprocket drives the upper side of the chain to move backward, a plurality of support bars are installed on the chain, a plurality of chains are arranged at intervals on the left and right, the support bars are fixedly connected to the plurality of chains along the left and right directions, and each row of the picking claws are correspondingly and evenly installed on the support bars.

[0011] According to some embodiments of the present invention, a soil leaking mesh plate is installed between at least two adjacent chains. The soil leaking mesh plate is a hollow rolled plate or screen, and the soil leaking mesh plate rotates synchronously with the chains.

[0012] According to some embodiments of the present invention, the wind blades extend in a radial direction and an axial direction of the rotating disk.

[0013] According to some embodiments of the present invention, it also includes a guide tube and a recovery bin, wherein the recovery bin is installed on the frame, one end of the guide tube is connected to the discharge port, and the other end extends into the recovery bin or extends above the recovery bin.

[0014] According to some embodiments of the present invention, the frame is horizontally rotatably connected to the boom shaft above the guide assembly, and the boom shaft is circumferentially equipped with a boom frame, the boom frame can gather the upper part of the straw, the boom frame includes a gathering part and a mounting part, the mounting part extends radially toward the boom shaft, both ends of the gathering part are connected to the boom shaft via the mounting part, and the gathering part is V-shaped or U-shaped.

[0015] According to some embodiments of the present invention, the guide assembly includes two guide rods, and the two guide rods gradually shrink from an end away from the circular saw blade to an end close to the circular saw blade.

[0016] According to some embodiments of the present invention, the circular saw blades are arranged in multiple groups at horizontal intervals, the rollers are correspondingly arranged in multiple pairs at horizontal intervals, the frame is rotatably mounted with a pair of output rollers for outputting straw, a feeding channel for conveying straw is formed between a pair of the output rollers and each pair of the rollers, and screw push rods are respectively installed in some of the feeding channels. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of the local structure of an embodiment of the present invention Figure 1 ;

[0020] Figure 3 It is a structural schematic diagram of a harvesting part from one viewing angle in an embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the structure of the harvesting part from another perspective in an embodiment of the present invention;

[0022] Figure 5 for Figure 4 A partial enlarged view of the middle A;

[0023] Figure 6 It is a structural schematic diagram of a boom frame in an embodiment of the present invention;

[0024] Figure 7 It is a schematic diagram of the structure of a crushing device in an embodiment of the present invention;

[0025] Figure 8 It is a cross-sectional schematic diagram of a pulverizing device in an embodiment of the present invention;

[0026] Fig. 9 A schematic diagram of the local structure of an embodiment of the present invention Figure 2 ;

[0027] Fig.10 for Fig. 9 A partial enlarged view of point B in the middle;

[0028] Fig.11 It is a structural schematic diagram of a membrane cutting assembly in an embodiment of the present invention;

[0029] Fig.12 It is a partial structural cross-sectional schematic diagram of an embodiment of the present invention;

[0030] Fig.13 A schematic diagram of the local structure of an embodiment of the present invention Figure 3 .

[0031] Figure numerals: frame 1, front frame 101, tractor 102, rear frame 103, guide assembly 2, guide rod 201, circular saw blade 3, roller 4, crushing device 5, crushing bin 51, turntable 52, feed inlet 53, discharge outlet 54, blade 55, wind blade 56, film cutting assembly 6, film cutting knife 61, guide rail 62, height adjustment frame 63, slider 64, screw rod 65, guide rod 66, picking mechanism 7, chain 71, picking claw 72, driven sprocket 73, driving sprocket 74, support bar 75, soil leakage mesh plate 76, material transfer mechanism 8, Horizontal rotating shaft 81, material transfer claw 82, hook portion 821, transition material box 9, bottom plate 91, avoidance gap 92, baler 10, blower 11, front wheel 12, rear wheel 13, traction rod 14, first transmission mechanism 15, connecting rod 151, first drive cylinder 152, second transmission mechanism 16, connecting frame 161, second drive cylinder 162, guide tube 17, recovery bin 18, arm frame 19, arming portion 191, mounting portion 192, arm shaft 20, extrusion plate 21, teeth 22, output roller 23, feeding channel 24, screw push rod 25. DETAILED DESCRIPTION

[0032] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0033] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., and orientations or positional relationships indicated are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of the present invention, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood as not including the number itself, and "above", "below", "within" etc. are understood as including the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0035] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0036] Reference Figure 1 , Figure 2 and Fig. 9 The present invention discloses a cotton field straw crushing and mulch film cleaning and returning machine, comprising a frame 1, on which a guide component 2, a harvesting part, a crushing device 5, a film cutting component 6, a picking mechanism 7, a material transfer mechanism 8 and a baler 10 are sequentially installed from front to back, wherein the harvesting part includes a saw blade 3 and a roller 4.

[0037] Specifically, the guide assembly 2 is installed on the frame 1, and is used to gather the scattered straw together. The center of the circular saw blade 3 is rotatably connected to the frame 1 through a vertical rotating shaft, and is used to cut the root of the straw. The frame 1 is vertically rotatably connected to a pair of rollers 4 above the circular saw blade 3, and the pair of rollers 4 can squeeze each other and transport the straw.

[0038] It is understandable that the root of the straw refers to the bottom of the straw, which is located above the ground surface, rather than the root of the crop buried underground; the frame 1 is able to move forward.

[0039] Reference Figure 7 and Figure 8The crushing device 5 includes a crushing bin 51 and a turntable 52 rotatably installed in the crushing bin 51. The crushing bin 51 has an inlet 53 for inputting straw and an outlet 54 for outputting the crushed straw. The turntable 52 is circumferentially installed with multiple blades 55 and multiple wind blades 56. The blades 55 are closer to the inlet than the wind blades 56 in the axial direction of the turntable 52.

[0040] Further references Fig.11 , Fig.12 and Fig.13 , wherein the film cutting assembly 6 includes a film cutting knife 61 and a guide rail 62 arranged along the left and right directions, and the film cutting knife 61 is slidably connected to the guide rail 62; the picking mechanism 7 includes a chain 71 and multiple rows of picking claws 72 installed on the chain 71, each row of picking claws 72 includes multiple picking claws 72 arranged at intervals, and the chain 71 is used to drive each row of picking claws 72 to dig up the ground film and push the ground film backward; the material transfer mechanism 8 includes a horizontal rotating shaft 81 rotatably installed on the frame 1, and the horizontal rotating shaft 81 is circumferentially equipped with at least one row of material transfer claws 82, each row of material transfer claws 82 includes multiple material transfer claws 82 arranged at intervals, and each row of material transfer claws 82 can be staggered and avoided with any row of picking claws 72 to transfer the ground film; the baler 10 is used to collect and bundle the transferred ground film.

[0041] It can be understood that the specific process of the picking claw 72 digging up the mulch film is that the picking claw 72 extends into the surface soil of the cotton field and drags the mulch film forward, so that the mulch film is accumulated and then lifted up to completely separate it from the soil. After the mulch film is dug up, the film cutting knife 61 moves horizontally quickly along the guide rail 62 to cut off the part of the mulch film that is dug up but still connected to the ground.

[0042] When the actual positions of the material transfer claw 82 and the picking claw 72 are taken into consideration, the chain 71 and the horizontal shaft 81 rotate in the same direction. Fig.12 As shown in the clockwise direction, when the material transfer claws 82 and the picking claws 72 meet, the picking claws 72 tend to move downward, while the material transfer claws 82 tend to move upward, and each row of material transfer claws 82 and each row of picking claws 72 can correspond one to one.

[0043] When the field operation machine moves forward, it first harvests, and the guide component 2 quickly gathers the scattered straw and brings it close to the circular saw blade 3. Under the forced squeezing of the roller 4 and moving along with the frame 1, the root of the straw is sent to the circular saw blade 3, and the circular saw blade 3 can effectively rotate and cut the straw; the cut straw continues to be transported by the roller 4 to the feed port 53 of the crushing bin 51, and the blade 55 and the wind blade 56 rotate at a high speed under the drive of the turntable 52. The straw is first chopped instantly by the blade 55, and the chopped straw is blown to the discharge port 54 and discharged under the action of the wind blade 56, and the crushing effect is very good.

[0044] Since there is a certain distance between the circular saw blade 3 and the cotton field and they remain parallel, the mulch film will not be damaged; after the straw on the cotton field has just been harvested and crushed, the picking claws 72 extend into the surface soil of the cotton field, and the picking claws 72 are cyclically driven by the chain 71, so that a row of picking claws 72 on the front and lower side of the chain 71 can dig up the mulch film, separate the mulch film from the soil, drag the mulch film forward to accumulate it and then lift it up, and the film cutting knife 61 can move quickly laterally along the guide rail 62 to cut off the part of the mulch film that is lifted up but still connected to the ground, and the row of picking claws 72 continues to rotate and push the mulch film backward, and then the material transfer claws 82 transfer the mulch film on the picking claws 72 to the baler 10 for baling.

[0045] Since each row of picking claws 72 and material transfer claws 82 are arranged in multiple intervals and can be staggered, the ground film is usually in the shape of long strips, spanning multiple picking claws 72 or material transfer claws 82, so that each row of material transfer claws 82 can smoothly unload the ground film from the picking claws 72, and then transfer the ground film back to the baler 10. Combined with the forward movement of the frame 1, the ground film is collected by the baler 10. The ground film is not easy to be torn in the middle and will not be crushed, so that relatively complete ground film can be picked up and baled. The ground film has the value of reuse and can continuously enter the next film collection cycle.

[0046] In some embodiments of the present invention, reference Figure 1 The frame 1 is specifically divided into three parts from front to rear, namely a front frame 101, a tractor 102 and a rear frame 103. The tractor 102 provides power for the entire field returning machine. The guide assembly 2, the harvesting part and the crushing device 5 are installed on the front frame 101, and the picking mechanism 7, the material transfer mechanism 8 and the baler 10 are installed on the rear frame 103.

[0047] In some embodiments of the present invention, reference Figure 7 and Figure 8 The discharge port 54 is located at the upper outer edge of the crushing bin 51 , and the wind blades 56 extend radially and axially along the turntable 52 , so that the multiple wind blades 56 can generate a large centrifugal force when rotating at a high speed, and the chopped straw can be smoothly discharged from the crushing bin 51 .

[0048] In addition, refer to Figure 1 , and also includes a guide pipe 17 and a recovery bin 18. The recovery bin 18 is mounted on the frame 1. One end of the guide pipe 17 is connected to the discharge port 54, and the other end extends into the recovery bin 18 or extends to the top of the recovery bin 18, so that the recovery can be effectively performed. In addition, the guide pipe 17 can rotate relative to the discharge port 54. By adjusting the angle of the guide pipe 17, the chopped straw can be sprayed into the field, achieving the effect of returning the straw to the field and increasing fertilizer.

[0049] See also Figure 4In some embodiments of the present invention, the guide assembly 2 includes two guide rods 201, and the two guide rods 201 gradually shrink from one end away from the circular saw blade 3 to the end close to the circular saw blade 3, forming a V-shaped channel for the dispersed straw to pass through and gradually gather.

[0050] See also Figure 3 In some embodiments of the present invention, the frame 1 is horizontally rotatably connected to a boom shaft 20 above the guide assembly 2, and the boom shaft 20 is circumferentially installed with a boom frame 19. The boom shaft 20 drives the boom frame 19 to rotate, and the boom frame 19 can gather the upper part of the straw, further assisting the guide assembly 2 to move the straw closer to the circular saw blade 3.

[0051] Reference Figure 6 The arm frame 19 includes an arm-holding portion 191 and a mounting portion 192. The mounting portion 192 extends radially toward the arm shaft 20. Both ends of the arm-holding portion 191 are connected to the arm shaft 20 through the mounting portions 192. The arm-holding portion 191 is V-shaped or U-shaped.

[0052] It is understandable that when the holding portion 191 rotates to the highest point, it is usually higher than the top of the straw, and when it rotates to the lowest point, it is usually lower than the top of the straw. When the frame 1 moves forward, the holding portion 191 first rotates to the front of the straw, and then moves the straw backward. Combined with the shape of the holding portion 191, the scattered straw is further quickly gathered and moved closer to the circular saw blade 3.

[0053] Reference Figure 5 In some embodiments of the present invention, a pair of rollers 4 rotate in opposite directions, and a squeezing plate 21 is installed circumferentially on the rollers 4. The squeezing plates 21 of the pair of rollers 4 correspond to each other one by one to achieve the effect of squeezing the straw. The squeezing plates 21 have teeth 22 to further enhance the squeezing effect. Since the center of the circular saw blade 3 is connected to the frame 1 through a vertical rotating shaft, the cutting plane of the circular saw blade 3 is perpendicular to the straw, and the rollers 4 can also continue to transport the cut straw backwards.

[0054] Reference Figure 3 and Figure 4 Crops are usually planted in rows. In order to improve the harvesting efficiency, multiple groups of circular saw blades 3 are arranged horizontally at intervals, and each group of circular saw blades 3 corresponds to each row of straw. Multiple pairs of rollers 4 are correspondingly arranged horizontally at intervals. A pair of output rollers 23 for outputting the straw are rotatably installed on the frame 1. A feeding channel 24 for conveying the straw is formed between the pair of output rollers 23 and each pair of rollers 4, and spiral push rods 25 are respectively installed in some of the feeding channels 24.

[0055] In some embodiments of the present invention, the circular saw blades 3 may be arranged in three groups horizontally at intervals, wherein the output roller 23 is located directly behind the middle circular saw blade 3, and the straw cut by the middle circular saw blade 3 is transported backwards by the roller 4 to the feeding channel 24, and further enters the output roller 23; spiral push rods 25 are installed in the feeding channels 24 on both sides, and the spiral directions of the two spiral push rods 25 are opposite, and the straw cut by the circular saw blades 3 on both sides is transported backwards by the roller 4 to the feeding channel 24, and then transported toward the output roller 23 by the spiral push rod 25, and finally, the output roller 23 transports the cut straw to the feed port 53 of the crushing bin 51.

[0056] Specifically, the rotation directions of a pair of output rollers 23 are opposite. The output rollers 23 are provided with squeezing plates 21 along the circumference. The squeezing plates 21 of the pair of output rollers 23 correspond one to one to achieve the function of squeezing the straw. The squeezing plates 21 are provided with teeth 22 to further enhance the squeezing effect, so that the straw is output from the harvesting part and enters the crushing device for processing.

[0057] In some embodiments of the present invention, the height of the film cutting knife 61 relative to the frame 1 is adjustable to adapt to the height of the film in different ground conditions.

[0058] Reference Fig.11 Specifically, the film cutting assembly 6 also includes a height adjustment frame 63 and a slider 64. The height adjustment frame 63 is slidably connected to the guide rail 62. A vertical screw 65 and a guide rod 66 are installed on the height adjustment frame 63. The slider 64 is slidably connected to the guide rod 66 and is threadedly connected to the screw 65. The film cutting knife 61 is fixedly installed on the slider 64. By rotating the screw 65, the purpose of adjusting the height of the film cutting knife 61 is achieved.

[0059] Reference Fig.10 In some embodiments of the present invention, the picking mechanism 7 further includes a driven sprocket 73 and a driving sprocket 74 which are distributed front and back, and the chain 71 is transmission-connected with the driving sprocket 74 and the driven sprocket 73, wherein the chain 71 is as shown in FIG. Fig.10 The clockwise rotation of the driving sprocket 74 causes the upper side of the chain 71 to move backward. The upper side of the chain 71 can also be called the tight side of the chain 71, which refers to the straight portion on the upper side of the chain 71.

[0060] In order to install the picking claws 72, multiple support bars 75 are installed on the chain 71. Multiple support bars 75 are arranged at intervals on the left and right sides of the chain 71. The support bars 75 are fixedly connected to the multiple chains 71 along the left and right directions. Each row of picking claws 72 are evenly installed on the support bars 75.

[0061] The length of the support bar 75 corresponds to the width of the ground film. According to the planting characteristics of the cotton field, three rows of straw can be harvested at a time. The width of the ground film of three rows is 2.0 to 2.1 meters. Based on this, the length of the support bar 75 is slightly greater than 2.0 meters. The picking mechanism 7 is equipped with 2 to 8 rows of picking claws 72, each row has 16 to 20 picking claws 72, with a large arrangement density, few empty spaces, and complete picking.

[0062] In addition, a soil-leaking mesh plate 76 is installed between at least two adjacent chains 71. The soil-leaking mesh plate 76 is a hollow rolled plate or screen. The soil-leaking mesh plate 76 rotates synchronously with the chain 71. Most of the soil will be separated from the ground film when the ground film is shoveled up, but the ground film may carry a small amount of soil. In the process of the picking claw 72 pushing the ground film backward, the soil falls on the soil-leaking mesh plate 76 and can fall back into the cotton field through the soil-leaking mesh plate 76, ensuring that the recovered ground film is clean and has the value of reuse.

[0063] Reference Fig.12 In some embodiments of the present invention, three rows of material transfer claws 82 are evenly installed along the circumferential direction of the horizontal rotating shaft 81. The end of the material transfer claw 82 away from the horizontal rotating shaft 81 has a curved hook portion 821. The curved hook portion 821 can effectively restrain the ground film, which is conducive to the material transfer claw 82 to hook the ground film from the picking claw 72, and also prevents the ground film from being thrown outward due to the centrifugal force on the material transfer claw 82.

[0064] In some embodiments of the present invention, a transition box 9 is also installed on the frame 1 and is located between the material transfer mechanism 8 and the baler 10. The transition box 9 is connected front to back to form a passage for transporting the ground film to the front of the baler 10, thereby preventing the ground film from falling onto the cotton field.

[0065] Reference Fig.12 The transition material box 9 includes a bottom plate 91, and a plurality of avoidance gaps 92 are spaced apart at the front end of the bottom plate 91 for the material transfer claws 82 to rotate through, so that the material transfer claws 82 can transfer the ground film to the bottom plate 91 during the rotation process without affecting the continuous rotation of the material transfer claws 82. The bottom plate 91 is tilted downward from front to back, which facilitates the ground film to automatically slide backward on the bottom plate 91.

[0066] In addition, in order to further facilitate the transfer of the ground film, a blower 11 is also installed on the frame 1. The blower 11 is located in front of the transition material box 9 and blows air toward the bottom plate 91 and the material transfer claws 82 to cause the residual soil to fall off and blow the ground film quickly into the baler, which makes it convenient for the ground film on the picking claws 72 to be quickly blown onto the bottom plate 91, and also makes it convenient for the ground film at the front end of the bottom plate 91 to be quickly blown to the rear end of the bottom plate 91 to prevent blocking the rotation of the picking claws 72.

[0067] It can be understood that the baler 10 is capable of baling ground film, and the discharge door of the baler 10 will automatically open to discharge the ground film bundles. After discharging, the discharge door will automatically close for the next baling cycle. The baler 10 of this embodiment is a conventional baler, and specifically can be the baler in the utility model application with application number CN201920541031.6 or the invention application with application number CN201911023661.5.

[0068] like Fig. 9 As shown, the vehicle further includes a traction rod 14 and a rear wheel 13 . The traction rod 14 is mounted on the front end of the rear frame 103 for transmitting traction, and the rear wheel 13 is mounted on the rear part of the rear frame 103 .

[0069] It is understandable that the rear frame 103 can be connected to the tractor 102 via the towing rod 14 to provide power for the rear frame 103 , and the rear frame 103 can only be equipped with two rear wheels 13 .

[0070] In some embodiments of the present invention, the rear wheel 13 can be raised and lowered relative to the rear frame 103. Specifically, a first transmission mechanism 15 is installed at the rear of the rear frame 103, and the first transmission mechanism 15 can drive the rear wheel 13 to be raised and lowered relative to the rear frame 103. The first transmission mechanism 15 includes a connecting rod 151 and a first driving cylinder 152. The connecting rod 151 is rotatably connected to the rear frame 103, one end of the connecting rod 151 is connected to the rear wheel 13, and the other end is hinged to the cylinder body of the first driving cylinder 152. The telescopic rod of the first driving cylinder 152 is hinged to the rear frame 103. Specifically, the first driving cylinder 152 can be a hydraulic oil cylinder.

[0071] In order to further ensure the balance and stability of the rear frame 103 , the rear frame 103 also has two front wheels 12 , which are installed at the front of the rear frame 103 .

[0072] The front wheel 12 can be raised and lowered relative to the rear frame 103. Specifically, a second transmission mechanism 16 is installed at the front part of the rear frame 103. The second transmission mechanism 16 can drive the front wheel 12 to be raised and lowered relative to the rear frame 103. The second transmission mechanism 16 includes a connecting frame 161 and a second drive cylinder 162. The cylinder body of the second drive cylinder 162 is vertically installed on the rear frame 103. The telescopic rod of the second drive cylinder 162 is connected to the two front wheels 12 through the connecting frame 161.

[0073] When in operation, the first transmission mechanism 15 and the second transmission mechanism 16 lift the rear wheel 13 and the front wheel 12 to a certain height respectively, and the rear frame 103 will naturally drop, so that the rear wheel 13 and the front wheel 12 can move on the cotton field, and the picking claws 72 can extend into the shallow layer of the ground to pick up the ground film.

[0074] When the operation is completed and needs to be switched to the transport state, the first transmission mechanism 15 and the second transmission mechanism 16 respectively drive the rear wheel 13 and the front wheel 12 to descend relative to the rear frame 103, so that the picking claw 72 is away from the ground and will not be damaged. The operation is convenient, so that the field operation machine can travel on the road and the cotton field road surface, and the switching is fast.

[0075] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A cotton field straw crushing and mulch film cleaning and returning machine, characterized in that: The vehicle frame comprises a vehicle frame, and the vehicle frame is sequentially installed with: A guide assembly is installed on the vehicle frame and is used to gather the scattered straw together. The guide assembly includes two guide rods. The two guide rods gradually shrink from one end away from the circular saw blade to the other end close to the circular saw blade. The vehicle frame is horizontally rotatably connected with a boom shaft above the guide assembly. The boom shaft is circumferentially equipped with a boom frame. The boom frame can gather the upper part of the straw. The boom frame includes a gathering part and a mounting part. The mounting part extends radially toward the boom shaft. Both ends of the gathering part are connected to the boom shaft through the mounting part. The gathering part is V-shaped or U-shaped. A circular saw blade and a roller, wherein the center of the circular saw blade is rotatably connected to the frame via a vertical rotating shaft, and is used for cutting the root of the straw, and the frame is vertically rotatably connected to a pair of rollers above the circular saw blade, and the pair of rollers can mutually squeeze and transport the straw; The pulverizing device comprises a pulverizing bin and a rotating disk rotatably mounted in the pulverizing bin, the pulverizing bin having an inlet for inputting straw and an outlet for outputting pulverized straw, the rotating disk being circumferentially mounted with a plurality of blades and a plurality of wind blades, the blades being closer to the inlet than the wind blades in the axial direction of the rotating disk; A film cutting assembly, comprising a film cutting knife and a guide rail arranged along the left and right directions, wherein the film cutting knife is slidably connected to the guide rail; The picking mechanism comprises a chain and a plurality of rows of picking claws mounted on the chain, each row of the picking claws comprises a plurality of picking claws arranged at intervals, and the chain is used to drive each row of the picking claws to dig up the ground film and push the ground film backward; The material transfer mechanism comprises a horizontal rotating shaft rotatably mounted on the frame, the horizontal rotating shaft is circumferentially mounted with at least one row of material transfer claws, each row of the material transfer claws comprises a plurality of material transfer claws arranged at intervals, and each row of the material transfer claws can be arranged in a staggered manner with any row of the picking claws to transfer the ground film; A baler is used to collect and bale the transferred mulch.

2. The cotton field straw crushing and mulch film cleaning and returning machine according to claim 1 is characterized in that: The frame is also provided with a transition material box between the material transfer mechanism and the baler. The transition material box is connected front to back and includes a bottom plate. The bottom plate is tilted downward from front to back, and a plurality of avoidance gaps are provided at intervals at the front end of the bottom plate for the material transfer claws to rotate through.

3. The cotton field straw crushing and mulch film cleaning and returning machine according to claim 2 is characterized in that: A blower is also installed on the frame. The blower is located in front of the transition material box and blows air toward the bottom plate and the material transfer claws.

4. The cotton field straw crushing and mulch film cleaning and returning machine according to claim 1 is characterized in that: The picking mechanism also includes a driven sprocket and a driving sprocket distributed front to back, the chain is transmission-connected to the driving sprocket and the driven sprocket, the driving sprocket drives the upper side of the chain to move backward, a plurality of support bars are installed on the chain, and a plurality of chains are arranged at intervals on the left and right, the support bars are fixedly connected to the plurality of chains along the left and right directions, and each row of the picking claws are correspondingly and evenly installed on the support bars.

5. The cotton field straw crushing and mulch film cleaning and returning machine according to claim 4 is characterized in that: A soil leakage mesh plate is installed between at least two adjacent chains. The soil leakage mesh plate is a hollow rolled plate or screen. The soil leakage mesh plate rotates synchronously with the chains.

6. The cotton field straw crushing and mulch film cleaning and returning machine according to claim 1, characterized in that: The wind blades extend in the radial direction and the axial direction of the rotating disk.

7. The cotton field straw crushing and mulch film cleaning and returning machine according to claim 1 is characterized in that: It also includes a guide tube and a recovery bin, wherein the recovery bin is mounted on the frame, one end of the guide tube is connected to the discharge port, and the other end extends into the recovery bin or extends to the top of the recovery bin.

8. The cotton field straw crushing and mulch film cleaning and returning machine according to claim 1 is characterized in that: The circular saw blades are arranged in multiple groups at horizontal intervals, the rollers are correspondingly arranged in multiple pairs at horizontal intervals, the frame is rotatably mounted with a pair of output rollers for outputting straw, a feeding channel for conveying straw is formed between a pair of the output rollers and each pair of the rollers, and screw push rods are respectively installed in some of the feeding channels.

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