Efficient farmland mulching film recycling device and method

Abstract

The invention relates to an efficient farmland mulching film recycling device and method. A hydraulic rod rotating support is fixedly installed on a supporting connecting plate and connected with a rotating supporting sleeve arranged on the outer side of a hydraulic rod in a sleeving mode through a hydraulic rod rotating shaft, the output end of the hydraulic rod is connected with a rotating shaft, and the rotating shaft is sleeved with a rotating shaft sleeve; the rotating shaft sleeve is fixedly connected with a rotating connecting piece, a recycling base rotating support is fixedly installed on the supporting connecting plate on the inner side of the rotating connecting piece and connected with a recycling base through a recycling base rotating shaft, the outer side of the recycling base is fixedly connected with the rotating connecting piece, and a separating and recycling mechanism is installed on the recycling base. The synchronous mulching film recycling and rolling operation is implemented after the overall separation operation, high efficiency and convenience are achieved, independent recycling of the mulching film can be achieved without shoveling up soil, and the overall recycling efficiency is high.

Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a device and method for efficiently recovering farmland mulch film. Background Art

[0002] Ground film is usually a transparent or black PE film, which can increase soil temperature, retain soil moisture, maintain soil structure, retain fertilizer and improve fertilizer efficiency, promote plant growth, etc. It also has many functions such as killing weeds, preventing pests and diseases, preventing drought and waterlogging, inhibiting salt and protecting seedlings, improving light and heat conditions near the ground, and making the product hygienic and clean.

[0003] Due to the special material of ground film, it is difficult to decompose in the soil. In order to avoid soil pollution, ground film needs to be dismantled and recycled after use. Traditional dismantling and recycling methods include manual and mechanical methods. The manual method uses pulling and cutting to implement dismantling and recycling. The mechanical method uses a dancing machine to implement dismantling and recycling. Both recycling methods have certain disadvantages. Specifically: First, the manual pulling method consumes more human resources and the overall dismantling efficiency is low. Although the manual knife cutting method is fast, it needs to be recycled in sections, which increases the recycling steps and requires special tool equipment. After the ground film is recycled, it is overall scattered, which is not conducive to sorting. Secondly, when using flipping machinery to recycle ground film, the traditional flipping machinery has a complex overall structure during use and needs to be driven by external equipment. At the same time, during the recycling process, it is generally necessary to lift up the surface soil and the ground film together, and then perform separation operations in the rear equipment. This method requires a large amount of power resources. At the same time, there is a serious problem of ground film damage during the process of recovering the surface soil and the ground film and then separating them. There are many residues entrained during the recycling process, and manual cleaning is required in the later stage. The overall working environment is poor, and the overall position of the damaged mechanism or the removal mechanism under the ground film is fixed, and it cannot be flexibly adjusted during use, which affects the recycling efficiency.

[0004] Therefore, the present invention provides a highly efficient recovery device and method for farmland mulch film, which can realize the efficient recovery operation of mulch film, has a simple overall structural design, does not need to implement synchronous recovery of surface soil, saves power resources, can implement position height adjustment during the rear mulch film separation operation, has high flexibility, is suitable for use with mulch films of different depths, can realize the removal of residues on the upper and lower parts of the mulch film during the recovery process, has a high degree of intelligence and automation, and has the advantages of being simple and easy to operate. Summary of the invention

[0005] In view of the defects of the prior art, the present invention provides a device and method for realizing efficient recovery of ground film. The overall structural design is simple, and there is no need to simultaneously recover the surface soil, thus saving power resources. The device and method can implement position height adjustment during the rear ground film separation operation, and the device is highly flexible and suitable for use with ground films of different depths. During the recovery process, the device and method can remove the residues on the upper and lower parts of the ground film, and the device and method for efficient recovery of farmland ground film have a high degree of intelligence and automation and are simple and easy to operate, so as to overcome the defects in the prior art.

[0006] The technical solution of the present invention is implemented as follows: a high-efficiency agricultural land film recovery device comprises a supporting and connecting plate with wheels, a small hydraulic station installed on the supporting and connecting plate, and a hydraulic rod connected to the output end of the small hydraulic station; a hydraulic rod rotating bracket is fixedly installed on the supporting and connecting plate, and the hydraulic rod rotating bracket is connected to a rotating support sleeve mounted on the outside of the hydraulic rod through a hydraulic rod rotating shaft; the output end of the hydraulic rod is connected to the rotating shaft, and a rotating shaft sleeve is mounted on the rotating shaft, and the rotating shaft sleeve is fixedly connected to a rotating connecting piece; a recovery seat rotating bracket is fixedly installed on the supporting and connecting plate inside the rotating connecting piece, and the recovery seat rotating bracket is connected to the recovery seat through a recovery seat rotating shaft, and the outer side of the recovery seat is fixedly connected to the rotating connecting piece; and a separation and recovery mechanism is installed on the recovery seat.

[0007] Furthermore, the separation and recovery mechanism includes two separation rods symmetrically fixedly mounted on the outer side of the recovery seat, a soil separation cutter head is fixedly mounted on the bottom end of the separation rod, a mulch separation rod is fixedly mounted between the two separation rods at the rear end of the soil separation cutter head, at least one mulch cleaning rod is fixedly mounted between the longitudinal middle positions of the two separation rods, and a mulch recovery roller is also mounted on the top of the recovery seat, both ends of the mulch recovery roller are connected to the mulch recovery bracket through a mulch recovery roller shaft, and a rotating motor with an output end connected to the mulch recovery roller shaft is mounted on the mulch recovery bracket.

[0008] Preferably, the front side of the supporting connecting plate is connected to the remote-controlled electric vehicle head, there are two hydraulic rods, the two hydraulic rods are synchronous hydraulic rods, both hydraulic rods are connected to the output end of the small hydraulic station, the rotating support sleeve is mounted on the output end of the hydraulic rod body, and the two hydraulic rods are symmetrically distributed on the top surface of the supporting connecting plate on both sides of the small hydraulic station.

[0009] Preferably, the output end of the hydraulic rod is connected to the rotating shaft through a connecting rod, and there are two rotating shafts, which are symmetrically fixed on both sides of the connecting rod end. Each rotating shaft is provided with a rotating sleeve, and the two rotating sleeves are fixedly connected to the bottom end of the rotating connecting piece. The rotating connecting piece is a V-shaped rod structure with an obtuse angle, and the inner wall of the rotating connecting piece is fixedly connected to the outer wall of the recovery seat.

[0010] Preferably, the recovery seat is a square plate-shaped structure, the front end of the recovery seat is fixedly equipped with a rotating protrusion that matches the inner side of the recovery seat rotating bracket, a rotating support hole is opened on the rotating protrusion, and the recovery seat rotating shaft is installed in the rotating support hole.

[0011] Preferably, the separation rod is a semicircular rod-shaped structure, the soil separation cutter head and the bottom end of the separation rod are an integral structure, the top surface of the soil separation cutter head is a horizontal structure, the bottom surface of the soil separation cutter head is an inclined structure inclined upward, and the top surface of the soil separation cutter head is lower than the bottom surface of the wheel.

[0012] Preferably, the two separation rods are symmetrically distributed at both ends of the outer side of the recovery seat, and the separation rods extend in an arc-shaped structure from the outer end surface of the recovery seat to the lower rear side of the supporting connecting plate, and the soil separation blade head is located in the lower middle part of the soil separation blade head.

[0013] Preferably, a roller brush is provided at the upper front end of the soil separation cutter head, a roller brush shaft is installed on the front side of the roller brush, the roller brush shaft is mounted on the roller brush fixing bracket, a roller brush motor whose output end is connected to the roller brush shaft is fixedly installed on the front side of the roller brush fixing bracket, a telescopic rod is fixedly installed on the top of the roller brush fixing bracket, a telescopic slot is provided at the rear end bottom of the support connecting plate, the top of the telescopic rod is inserted into the telescopic slot, a limiting block is provided in the middle of the telescopic rod, and a telescopic spring is mounted on the telescopic rod between the bottom of the support connecting plate and the limiting block.

[0014] Preferably, a mulch film reel is fixedly mounted on the middle of the mulch film recovery roller, and a mulch film fixing needle is provided on the mulch film reel.

[0015] A method for recycling mulch film using a high-efficiency mulch film recycling device for farmland, the method comprising the following steps:

[0016] 1) Carry the supporting connecting plate to the corresponding position on the upper part of the ground film. In the initial state, the recovery seat is in a raised state. Turn on the small hydraulic station to drive the hydraulic rod to retract. The output end of the hydraulic rod drives the rotating shaft to retract. The rotating shaft drives the rotating sleeve to retract. The rotating sleeve drives the rotating connector to rotate. At the same time, the recovery seat rotates synchronously around the recovery seat rotating shaft. When the soil separation cutter head installed on the recovery seat rotates 90 degrees and penetrates into the soil under the ground film, close the small hydraulic station;

[0017] 2) Lift the end of the ground film from the ground and reserve enough length so that the ground film passes over the ground film cleaning rod from the upper part of the ground film separation rod and is hung on the ground film winding shaft. The remote-controlled electric head is remotely started to drive the supporting connecting plate to move forward. During the moving process, the soil separation blade head and the ground film separation rod continuously separate the ground film from the soil surface. At the same time, the rotating motor is turned on to drive the ground film recovery roller to rotate, and further drive the ground film winding shaft and the ground film recovery roller to rotate synchronously. While rotating, the ground film is wound around the outside of the ground film winding shaft;

[0018] 3) When the mulch film recovery operation is in progress, the roller brush motor is turned on to drive the roller brush shaft to rotate, which further drives the roller brush to rotate, and performs a rotary brushing operation toward the outside of the soil sealing position at the edge of the upper layer of the mulch film, so as to clean the soil at the edge of the mulch film and ensure the cleanliness of the surface layer during the mulch film recovery operation. At the same time, the mulch film cleaning rod performs a supporting contact friction operation on the middle part of the mulch film during the rolling process, so as to further remove the residues adhering to the mulch film;

[0019] 4) When a ridge of mulch is rolled up and recovered, the small hydraulic station is turned on to drive the hydraulic rod to extend. The output end of the hydraulic rod drives the rotating shaft to extend, the rotating shaft drives the rotating sleeve to extend, and the rotating sleeve drives the rotating connector to rotate. At the same time, the recovery seat rotates synchronously around the recovery seat rotating axis, and the soil separation cutter head withdraws from the soil. When the recovery seat rotates to a vertical state, the small hydraulic station is closed.

[0020] The present invention has the following positive effects:

[0021] Firstly, the present invention realizes the recovery operation of ground film by means of mechanical automation and remote control. The supporting connecting plate is driven by remote control of the electric head, and the small hydraulic station and the hydraulic rod are dragged to convert the recovery seat into a vertical state and a horizontal state. In the horizontal state, the soil separation cutter head is used to penetrate into the soil under the ground film, and the ground film separation rod is used to uncover and separate the lower part of the ground film, and the ground film separated from the soil surface is rolled up and recovered by the upper ground film recovery roller. After the overall separation operation, the synchronous ground film recovery and rolling operation is carried out, which is efficient and convenient. The ground film can be recovered separately without shoveling the soil, and the overall recovery efficiency is high.

[0022] Secondly, the present invention utilizes a mulch film separation rod to implement separation operations, and utilizes at least one mulch film cleaning rod to perform residue removal operations on both sides of the mulch film during the recovery and winding process after separation. The recycled mulch film is free of residues, which reduces the later cleaning operations of the recycled mulch film and achieves efficient recycling.

[0023] Thirdly, in the process of ground film recovery, the present invention utilizes a roller brush to clean the pressed soil on the upper layer of the ground film at the front end of the soil separation cutter head. While cleaning the upper surface of the ground film, the pressed soil on the edge of the ground film is removed, thereby achieving efficient and smooth operation of the film peeling operation. At the same time, the pressure of the pressed soil layer on the local ground film is avoided, which causes large-scale damage during the ground film recovery process.

[0024] In addition, the present invention is provided with a telescopic spring, which can perform adaptive adjustment operations according to the ups and downs of the soil surface during use. When there is a raised position on the soil surface, the telescopic rod moves upward in the telescopic slot. At the same time, under the limiting elastic support of the telescopic spring, the bottom working surface of the roller brush can always be in fit and contact with the soil surface, so as to effectively implement the cleaning operation of the covered soil. More importantly, the recovery seat of the present patent can realize the corresponding height angle adjustment operation through the extension and retraction of the hydraulic rod, and can perform uncovering, cleaning and winding and recycling operations on ground films of different depths. The separation rod is driven by the recovery seat to adjust the depth of the soil separation blade head, so as to adapt to the loosening and separation of the bottom of ground films of different depths.

[0025] The present invention utilizes the rotating shaft at the output end of the hydraulic rod to connect with the rotating sleeve to realize the rotating operation of the rotating connector, thereby driving the recovery seat to rotate, and finally performing the separation operation of the soil separation cutter head and the ground film separation rod deep into the ground film layer. The rotating connector is an angle rod-shaped structure, and always rotates along the axis of the rotating shaft of the recovery seat during the rotating operation, thereby realizing the control of the film peeling angle and depth. The recovery seat is in a vertical state in the initial stage, and can provide enough space for the positioning of the ground film loading at the beginning of the recovery stage. After the surface soil is destroyed during the operation, the ground film can be easily separated and the residue can be effectively removed. The soil is not recovered synchronously with the ground film, and the overall recovery efficiency is high. After the operation of one ridge is completed, the soil separation cutter head can be lifted up to provide reserved space for the next ridge recovery operation. The operation is efficient and convenient, and the efficient recovery of the ground film is realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the recovery seat of the present invention.

[0027] Figure 2 It is a schematic structural diagram of the recovery seat raising of the present invention.

[0028] Figure 3 It is a schematic diagram of the top structure of the present invention.

[0029] Figure 4 It is a rear structural schematic diagram of the present invention.

[0030] Figure 5 It is a schematic diagram of the local three-dimensional structure of the present invention.

[0031] Figure 6 This is a schematic diagram of the top view of the structure of the present invention in use. DETAILED DESCRIPTION

[0032] 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.

[0033] In the following description of the invention, it should be noted that the terms "upper", "lower", "left", "right", "inner", "outer", etc., indicating directions or positional relationships, are based on directions or positional relationships shown in the drawings, and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a specific direction or be constructed and operated in a specific direction. The term "connection" only indicates the connection between devices and has no special meaning.

[0034] like Figure 1 , 2 As shown in Figures 3, 4, 5 and 6, a high-efficiency device for recovering agricultural land mulch film comprises a supporting connecting plate 1 with wheels 40, a small hydraulic station 21 mounted on the supporting connecting plate 1, and a hydraulic rod 17 connected to the output end of the small hydraulic station 21; a hydraulic rod rotating bracket 20 is fixedly mounted on the supporting connecting plate 1; the hydraulic rod rotating bracket 20 is connected to a rotating support sleeve 18 sleeved on the outside of the hydraulic rod 17 through a hydraulic rod rotating shaft 19; the output end of the hydraulic rod 17 is connected to a rotating shaft 14; a rotating shaft sleeve 15 is sleeved on the rotating shaft 14; the rotating shaft sleeve 15 is fixedly connected to a rotating connector 13; a recovery seat rotating bracket 3 is fixedly mounted on the supporting connecting plate 1 on the inner side of the rotating connector 13; the recovery seat rotating bracket 3 is connected to a recovery seat 5 through a recovery seat rotating shaft 4; the outer side of the recovery seat 5 is fixedly connected to the rotating connector 13; a separation and recovery mechanism is mounted on the recovery seat 5. The separation and recovery mechanism includes two separation rods 6 symmetrically fixedly installed on the outer side of the recovery seat 5, a soil separation cutter head 9 is fixedly installed on the bottom end of the separation rod 6, a mulch separation rod 8 is fixedly installed between the two separation rods 6 at the rear end of the soil separation cutter head 9, and at least one mulch cleaning rod 7 is fixedly installed between the longitudinal middle positions of the two separation rods 6. A mulch recovery roller 11 is also installed on the top of the recovery seat 5. The two ends of the mulch recovery roller 11 are connected to the mulch recovery bracket 10 through the mulch recovery roller shaft, and a rotating motor 12 with an output end connected to the mulch recovery roller shaft is installed on the mulch recovery bracket 10.

[0035] Specifically, the supporting connecting plate 1 is the overall bearing frame of the present invention, and the supporting connecting plate 1 is used to support the installation of the small hydraulic station 21, the hydraulic rod 17, the hydraulic rod rotating bracket 20 and other components. A recovery seat 5 that can rotate around the rotating shaft sleeve 15 is installed at the tail of the supporting connecting plate 1 as a soil separation component and a component for cleaning the residue of the ground film. The vertical state and the horizontal turntable of the recovery seat 5 are changed by the extension and contraction of the hydraulic rod 17, so that the soil separation cutter head 9 enters the soil under the ground film to damage the soil structure, or the soil separation cutter head 9 is separated from the soil under the ground film to implement the ground film rolling and inter-ridge conversion. The combined action of the separation rod 8 causes slight structural damage to the soil surface layer, realizes the separation of the lower layer of the mulch film from the soil surface layer, and synchronously realizes the winding and recycling by using the independently rotating mulch film recovery roller 11. During the recycling process, a mulch film cleaning rod 7 or two mulch film cleaning rods 7 are used to clamp the mulch film 29, and then the residues adhering to the front and back of the mulch film are cleared, thereby ensuring the cleanliness of the mulch film wound onto the mulch film recovery roller 11, avoiding re-cleaning at a later time, and avoiding the carrying away of soil and residues during the recycling process, thereby improving the recycling efficiency. At the same time, there is no need to organize and clean the recycled mulch film again, which is significantly better than the traditional method of synchronous recovery and separation by shoveling the soil.

[0036] The hydraulic rod 17 realizes the rotation operation inside the hydraulic rod rotating bracket 20 through the rotating support sleeve 18 and the hydraulic rod rotating shaft 19, and provides support when the rotating sleeve 15 performs circular rotation operation around the recovery seat rotating shaft 4. The recovery seat rotating bracket 3 provides support when the recovery seat 5 performs circular rotation operation around the recovery seat rotating shaft 4. By providing support when performing circular rotation operations by two groups, support operations at different positions are realized, and they cooperate with each other to provide cooperation for the rotation of the recovery seat 5.

[0037] The separation rod 6 provides a reference for the inter-ridge mulch film and a width comparison for the destruction of the inter-ridge mulch film soil layer. When in use, the inter-ridge mulch film is aligned with the position of the two separation rods 6, which can not only accurately correspond to the position of the soil layer under the mulch film, but also implement the limit operation during the mulch film rolling and recovery process on both sides. The mulch film recovery roller 11 rotates clockwise or counterclockwise at the upper position to roll and recover the recycled mulch film fed from the upper part of the mulch film cleaning rod 7. Its rolling and recovery speed matches the travel speed of the supporting connecting plate 1 to ensure rapid recovery after mulch film separation. The speed of the rotating motor 12 is adjusted to achieve the control of the rolling speed.

[0038] The front side of the support connecting plate 1 is connected to the remote control electric vehicle head 2. There are two hydraulic rods 17, and the two hydraulic rods 17 are synchronous hydraulic rods. Both hydraulic rods 17 are connected to the output end of the small hydraulic station 21. The rotating support sleeve 18 is mounted on the output end of the hydraulic rod 17 body. The two hydraulic rods 17 are symmetrically distributed on the top surface of the support connecting plate 1 on both sides of the small hydraulic station 21. The output end of the hydraulic rod 17 is connected to the rotating shaft 14 through the connecting rod 16. There are two rotating shafts 14, and the two rotating shafts 14 are symmetrically fixedly installed on both sides of the end of the connecting rod 16. Each rotating shaft 14 is mounted with a rotating sleeve 15. The two rotating sleeves 15 are fixedly connected to the bottom end of the rotating connector 13. The rotating connector 13 is a V-shaped rod-shaped structure with an obtuse angle. The inner wall of the rotating connector 13 is fixedly connected to the outer wall of the recovery seat 5. The recovery seat 5 is a square plate-shaped structure. A rotating protrusion 32 that matches the inner side of the recovery seat rotating bracket 3 is fixedly installed at the front end of the recovery seat 5. A rotating support hole 33 is opened on the rotating protrusion 32, and the recovery seat rotating shaft 4 is installed in the rotating support hole 33.

[0039] Specifically, the remote control electric head 2 is equipped with remote control components, networking modules, video interaction and other components, which can implement the control of the remote control electric head 2 at a remote location. Its control operations include moving, pausing, turning and other operation controls. At the same time, through the controller installed in the remote control electric head 2, it can realize the start and stop operation control operations of the hydraulic rod 17, the small hydraulic station 21, the rotating motor 12 and the roller brush motor 26, and realize the operation of remote unmanned recovery operations. When this patent is in operation, the number of hydraulic rods 17 is set according to specific needs to ensure that the rotation operation of the recovery seat 5 runs smoothly when the hydraulic rod 17 is in operation.

[0040] The separation rod 6 is a semicircular rod-shaped structure, the soil separation blade head 9 and the bottom end of the separation rod 6 are an integral structure, the top surface of the soil separation blade head 9 is a horizontal structure, the bottom surface of the soil separation blade head 9 is an inclined structure inclined upward, and the top surface of the soil separation blade head 9 is lower than the bottom surface of the wheel 40. The two separation rods 6 are symmetrically distributed at both ends of the outer side of the recovery seat 5, and the separation rod 6 extends from the outer end surface of the recovery seat 5 in an arc-shaped structure to the lower rear side of the support connecting plate 1, and the soil separation blade head 9 is located at the lower middle part of the soil separation blade head 9. A roller brush 28 is provided at the upper front end of the soil separation cutter head 9, a roller brush shaft 27 is installed at the front side of the roller brush 28, and the roller brush shaft 27 is mounted on the roller brush fixing bracket 25. A roller brush motor 26 whose output end is connected to the roller brush shaft 27 is fixedly installed at the front side of the roller brush fixing bracket 25. A telescopic rod 22 is fixedly installed at the top of the roller brush fixing bracket 25, a telescopic slot is provided at the bottom of the rear end of the support connecting plate 1, and the top of the telescopic rod 22 is inserted into the telescopic slot. A limit block 24 is provided in the middle of the telescopic rod 22, and a telescopic spring 23 is mounted on the telescopic rod 22 between the bottom of the support connecting plate 1 and the limit block 24. A mulch film reel 30 is fixedly installed at the middle of the mulch film recovery roller 11, and a mulch film fixing needle 31 is provided on the mulch film reel 30.

[0041] The soil separation cutter head 9 is designed at an angle, with its top surface being a horizontal structure, and the bottom surface of the soil separation cutter head 9 being an inclined structure inclined upward, and the top surface of the soil separation cutter head 9 is lower than the bottom surface of the wheel 40. Such a design structure can ensure that the top surface of the soil separation cutter head 9 will not carry too much soil during the movement of the supporting connecting plate 1, and at the same time, the surface soil can be separated and damaged during the movement.

[0042] Specific embodiments, such as Figure 1-6 As shown, when the present invention implements the ground film recovery operation, the supporting connecting plate 1 is first carried to the corresponding position on the upper part of the ground film 29. In the initial state, the recovery seat 5 is in a raised state, and the small hydraulic station 21 is turned on to drive the hydraulic rod 17 to contract. The output end of the hydraulic rod 17 drives the rotating shaft 14 to contract, and the rotating shaft 14 drives the rotating sleeve 15 to contract. The rotating sleeve 15 drives the rotating connecting piece 13 to rotate, and at the same time, the recovery seat 5 rotates synchronously around the recovery seat rotating shaft 4. When the soil separation cutter head 9 installed on the recovery seat 5 rotates ninety degrees and penetrates into the soil under the ground film 29, the small hydraulic station 21 is closed.

[0043] Lift the end of the ground film 29 from the ground and reserve enough length so that the ground film 29 can pass over the ground film cleaning rod 7 from the upper part of the ground film separation rod 8 and then be hung on the ground film winding shaft 30. Remotely start the remote-controlled electric car head 2 to drive the supporting connecting plate 1 to move forward. During the movement, the soil separation blade head 9 and the ground film separation rod 8 continue to separate the ground film 29 from the soil surface. At the same time, start the rotating motor 12 to drive the ground film recovery roller to rotate, and further drive the ground film winding shaft 30 and the ground film recovery roller 11 to rotate synchronously. While rotating, the ground film is wrapped around the outside of the ground film winding shaft 30.

[0044] When the ground film recovery operation is running, the roller brush motor 26 is turned on to drive the roller brush shaft 27 to rotate, and further drive the roller brush 28 to rotate, and perform a rotary brushing operation toward the outside on the upper edge of the ground film 29 to clean the soil at the edge of the ground film 29 to ensure the cleanliness of the surface layer of the ground film 29 during the recovery operation. At the same time, the ground film cleaning rod 7 performs a supporting contact friction operation on the middle part of the ground film 29 during the winding process to further remove the residue adhering to the ground film 29.

[0045] During the cleaning process, the top of the roller brush 28 is a telescopic movable operating structure. When a slope appears on the soil surface, the roller brush 28 pushes up, driving the telescopic rod 22 to rise in the telescopic slot. During the rising operation, the telescopic spring 23 contracts. Under the reaction force of the telescopic spring 23, the bottom of the roller brush 28 can always be in fit contact with the soil surface, ensuring efficient cleaning of the upper edge of the ground film 29. At the same time, when a low-lying position appears, under the elastic force of the telescopic spring 23, the roller brush 28 can move downward, ensuring efficient cleaning of the upper edge of the ground film 29.

[0046] When a row of mulch is rolled up and recovered, the small hydraulic station 21 is turned on to drive the hydraulic rod 17 to extend, and the output end of the hydraulic rod 17 drives the rotating shaft 14 to extend, and the rotating shaft 14 drives the rotating sleeve 15 to extend, and the rotating sleeve 15 drives the rotating connector 13 to rotate. At the same time, the recovery seat 5 rotates synchronously around the recovery seat rotating shaft 4, and the soil separation cutter head 9 withdraws from the soil. When the recovery seat 5 rotates to a vertical state, the small hydraulic station 21 is closed.

[0047] As another implementation of the present invention, in order to improve the removal of residues during the operation of this product, two mulch film cleaning rods 7 are fixedly installed between the longitudinal middle positions of the two separation rods 6. The two mulch film cleaning rods 7 are used to implement limited clamping of the mulch film 29 during the recovery process. During the winding process of the mulch film 29, the two mulch film cleaning rods 7 are used to simultaneously implement limited contact on both sides of the square of the mulch film 29, thereby removing the residue and returning it to the field.

[0048] As another implementation of the present invention, during the operation of this product, the soil separation cutter head 9 breaks the soil on both sides of the ground film 29, the distance between the two separation rods can be installed in a movable manner, and the distance adjustment operation can be implemented to adapt to the recovery operation of ground films of different widths. During operation, the ground film separation rod 8 is close to the soil separation cutter head, which can ensure that after the surface soil is damaged, the ground film separation rod 8 can peel off the soil under the ground film between the two separation rods 6, thereby realizing the synchronous separation operation of the ground film and the soil during the movement.

[0049] 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 highly efficient device for recovering agricultural land film, comprising a supporting connecting plate (1) with wheels (40), a small hydraulic station (21) mounted on the supporting connecting plate (1), and a hydraulic rod (17) connected to the output end of the small hydraulic station (21), characterized in that: A hydraulic rod rotating bracket (20) is fixedly mounted on the support connecting plate (1), and the hydraulic rod rotating bracket (20) is connected to a rotating support sleeve (18) sleeved on the outside of the hydraulic rod (17) through a hydraulic rod rotating shaft (19). The output end of the hydraulic rod (17) is connected to a rotating shaft (14), and a rotating sleeve (15) is sleeved on the rotating shaft (14). The rotating sleeve (15) is fixedly connected to a rotating connecting piece (13). A recovery seat rotating bracket (3) is fixedly mounted on the support connecting plate (1) inside the rotating connecting piece (13). The recovery seat rotating bracket (3) is connected to a recovery seat (5) through a recovery seat rotating shaft (4), and the outside of the recovery seat (5) is fixedly connected to the rotating connecting piece (13). A separation and recovery mechanism is mounted on the recovery seat (5).

2. The high-efficiency agricultural film recovery device according to claim 1 is characterized in that: The separation and recovery mechanism comprises two separation rods (6) symmetrically fixedly mounted on the outer side of the recovery seat (5), a soil separation blade (9) fixedly mounted on the bottom end of the separation rod (6), a ground film separation rod (8) fixedly mounted between the two separation rods (6) at the rear end of the soil separation blade (9), at least one ground film cleaning rod (7) fixedly mounted between the longitudinal middle positions of the two separation rods (6), and a ground film recovery roller (11) mounted on the top of the recovery seat (5), the two ends of the ground film recovery roller (11) being connected to the ground film recovery bracket (10) through the ground film recovery roller shaft, and a rotating motor (12) having an output end connected to the ground film recovery roller shaft is mounted on the ground film recovery bracket (10).

3. The high-efficiency agricultural film recovery device according to claim 1 is characterized in that: The front side of the support connecting plate (1) is connected to the remote-controlled electric vehicle head (2), there are two hydraulic rods (17), the two hydraulic rods (17) are synchronous hydraulic rods, the two hydraulic rods (17) are connected to the output end of the small hydraulic station (21), the rotating support sleeve (18) is sleeved on the output end of the hydraulic rod (17) body, and the two hydraulic rods (17) are symmetrically distributed on the top surface of the support connecting plate (1) on both sides of the small hydraulic station (21).

4. The high-efficiency agricultural film recovery device according to claim 1 is characterized in that: The output end of the hydraulic rod (17) is connected to the rotating shaft (14) through a connecting rod (16). The rotating shaft (14) is divided into two. The two rotating shafts (14) are symmetrically fixedly installed on both sides of the end of the connecting rod (16). Each rotating shaft (14) is provided with a rotating sleeve (15). The two rotating sleeves (15) are fixedly connected to the bottom end of the rotating connecting member (13). The rotating connecting member (13) is a V-shaped rod structure with an obtuse angle. The inner wall of the rotating connecting member (13) is fixedly connected to the outer wall of the recovery seat (5).

5. The high-efficiency agricultural film recovery device according to claim 1 is characterized in that: The recovery seat (5) is a square plate-shaped structure. A rotating protrusion (32) matching the inner side of the recovery seat rotating bracket (3) is fixedly installed at the front end of the recovery seat (5). A rotating support hole (33) is opened on the rotating protrusion (32), and the recovery seat rotating shaft (4) is installed in the rotating support hole (33).

6. The high-efficiency agricultural film recovery device according to claim 2, characterized in that: The separation rod (6) is a semicircular rod-shaped structure, the soil separation blade head (9) and the bottom end of the separation rod (6) are an integral structure, the top surface of the soil separation blade head (9) is a horizontal structure, the bottom surface of the soil separation blade head (9) is an inclined surface structure inclined upward, and the top surface of the soil separation blade head (9) is lower than the bottom surface of the wheel (40).

7. The high-efficiency agricultural film recovery device according to claim 2 is characterized in that: The two separation rods (6) are symmetrically distributed at the two ends of the outer side of the recovery seat (5), and the separation rod (6) extends from the outer end surface of the recovery seat (5) in an arc-shaped structure to the lower rear side of the supporting connecting plate (1), and the soil separation blade (9) is located at the lower middle part of the soil separation blade (9).

8. The high-efficiency agricultural film recovery device according to claim 2, characterized in that: A roller brush (28) is arranged at the upper front end of the soil separation cutter head (9), a roller brush shaft (27) is installed at the front side of the roller brush (28), the roller brush shaft (27) is sleeved on a roller brush fixing bracket (25), a roller brush motor (26) whose output end is connected to the roller brush shaft (27) is fixedly installed at the front side of the roller brush fixing bracket (25), a telescopic rod (22) is fixedly installed at the top of the roller brush fixing bracket (25), a telescopic slot is arranged at the bottom of the rear end of the support connecting plate (1), the top of the telescopic rod (22) is inserted into the telescopic slot, a limiting block (24) is arranged in the middle of the telescopic rod (22), and a telescopic spring (23) is sleeved on the telescopic rod (22) between the bottom of the support connecting plate (1) and the limiting block (24).

9. The high-efficiency agricultural film recovery device according to claim 2, characterized in that: A mulch film reel (30) is fixedly mounted in the middle of the mulch film recovery roller (11), and a mulch film fixing needle (31) is arranged on the mulch film reel (30).

10. A method for recycling mulch film using the high-efficiency mulch film recycling device for farmland according to any one of claims 1 to 9, characterized in that: The method comprises the following steps: 1) Carry the supporting connecting plate (1) to the corresponding position on the upper part of the ground film (29). In the initial state, the recovery seat (5) is in a raised state. The small hydraulic station (21) is turned on to drive the hydraulic rod (17) to retract. The output end of the hydraulic rod (17) drives the rotating shaft (14) to retract. The rotating shaft (14) drives the rotating sleeve (15) to retract. The rotating sleeve (15) drives the rotating connecting piece (13) to rotate. At the same time, the recovery seat (5) rotates synchronously around the recovery seat rotating shaft (4). When the soil separation cutter head (9) installed on the recovery seat (5) rotates ninety degrees and penetrates into the soil below the ground film (29), the small hydraulic station (21) is closed; 2) Lift the end of the ground film (29) from the ground and leave enough length so that the ground film (29) can pass over the ground film cleaning rod (7) from the top of the ground film separation rod (8) and then be hung on the ground film reel (30). The remote-controlled electric vehicle head (2) is remotely started to drive the supporting connecting plate (1) to move forward. During the moving process, the soil separation blade head (9) and the ground film separation rod (8) continuously separate the ground film (29) from the soil surface. At the same time, the rotating motor (12) is started to drive the ground film recovery roller to rotate, and further drive the ground film reel (30) and the ground film recovery roller (11) to rotate synchronously. During the rotation, the ground film is wound around the outside of the ground film reel (30); 3) When the ground film recovery operation is in progress, the roller brush motor (26) is turned on to drive the roller brush shaft (27) to rotate, and further drive the roller brush (28) to rotate, and implement a rotary brushing operation toward the outside of the upper edge of the ground film (29) to clean the soil at the edge of the ground film (29), thereby ensuring the cleanliness of the surface layer of the ground film (29) during the ground film recovery operation. At the same time, the ground film cleaning rod (7) implements a supporting contact friction operation on the middle part of the ground film (29) during the rolling process, thereby further removing the residues adhering to the ground film (29); 4) When the film of one ridge is rolled up and recovered, the small hydraulic station (21) is turned on to drive the hydraulic rod (17) to extend, the output end of the hydraulic rod (17) drives the rotating shaft (14) to extend, the rotating shaft (14) drives the rotating sleeve (15) to extend, the rotating sleeve (15) drives the rotating connecting piece (13) to rotate, and at the same time the recovery seat (5) rotates synchronously around the recovery seat rotating shaft (4), the soil separation cutter head (9) withdraws from the soil, and when the recovery seat (5) rotates to a vertical state, the small hydraulic station (21) is closed.

Images