Residual film recycling rotary tillage land preparation machine

Abstract

The invention discloses a rotary tillage land preparation machine capable of recycling residual films, and belongs to the technical field of agricultural machinery. The soil preparation machine comprises a rack, a transmission mechanism, a soil shoveling mechanism, a soil screening and conveying mechanism, a rotary tillage mechanism and a film stubble collecting device. The rack is composed of a frame, a left plate frame, a right plate frame and the like. The transmission mechanism is connected with the front gear box and the rear gear box through universal couplings and drives all shafts. The soil shoveling mechanism drives a soil digging shovel to work through an eccentric wheel, the soil screening and conveying mechanism achieves separation and screening of soil, residual films and stubbles through a conveying chain, a film pressing rib arranging plate and a film receiving rib arranging plate, the rotary tillage mechanism conducts rotary tillage on the soil, and the film stubble collecting device collects the residual films and the stubbles through two round baling machines. The land preparation machine integrates the functions of residual film picking and rotary tillage land preparation, has the advantages of high residual film recovery rate, good separation effect, good arrangement quality, low operation cost and the like, and effectively solves the problems of single function, low recovery rate and the like of a traditional residual film recovery machine.

Description

Technical Field

[0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a rotary tillage machine for recovering residual film. Background Art

[0002] With the promotion of mulching planting technology, the use of plastic film has increased rapidly, reaching tens of thousands of tons per year, and is still growing year by year. However, since the used mulch film is difficult to be completely recycled, a large part of the residual film is turned into the soil and accumulates year by year, causing serious white pollution of the land.

[0003] The common disadvantage of the residual film recycling machine currently used is that it has a single function and mainly completes the residual film recycling operation, which makes the cost of farmland planting high. The main models are rake type and soil screening type. The rake type residual film recycling machine is pulled by a tractor to drive the rake deep into the soil, pick up the residual film from the soil and concentrate it, and then collect the residual film manually or mechanically. It has a simple structure, relatively low cost, and is easy to use and maintain; its disadvantages are that the recovery rate of residual film is low, manual participation is usually required when unloading the film, the continuous working performance is poor, and it is easy to get blocked or entangled when working in clay soil or farmland with more weeds. The soil screening type is to shovel up all the soil in the plough layer, transport and screen it to the film collection basket at the rear through the conveyor chain. It has a higher pick-up rate than the rake type residual film recycling machine, but its disadvantages are that the conveyor chain has a short stroke, the picking and separation effect on clay soil is poor, and the recovered residual film and root stubble carry more soil. Summary of the invention

[0004] The purpose of the present invention is to provide a residual film recovery rotary tillage and land preparation machine, which has the functions of residual film picking up and rotary tillage and land preparation, and has the characteristics of high residual film recovery rate, good separation effect, good finishing quality and low operation cost.

[0005] The object of the present invention is achieved in this way: a residual film recovery rotary tillage and land preparation machine, which includes a frame, a transmission mechanism, a soil shoveling mechanism, a soil screening and conveying mechanism, a rotary tillage mechanism and a film stubble collecting device; it is characterized in that: the frame includes a frame, a left plate frame, a right plate frame, a walking wheel and a traction frame; the transmission mechanism includes a front gear box and a rear gear box connected by a universal coupling, the lateral output shaft of the front gear box is connected to the left front axle and the right front axle, and the middle lateral output shaft of the rear gear box is connected to the left rear middle axle and right rear middle axle, the shoveling mechanism is composed of a shovel left plate, a shovel right plate, a shovel main plate and a shovel blade to form an excavating shovel, the front upper parts of the left shovel plate and the right shovel plate are respectively axially connected to the front lower parts of the left plate frame and the right plate frame, the rear upper part of the left shovel plate is axially connected to the left connecting plate, the left connecting plate is axially connected to the left eccentric wheel on the left front axle, the rear upper part of the right shovel plate is axially connected to the right connecting plate, and the right connecting plate is axially connected to the right eccentric wheel on the right front axle; the soil screening conveying mechanism includes a conveying device installed between the left plate frame and the right plate frame at the rear of the excavating shovel with a low front and a high rear The conveyor chain includes an annular chain plate, a driven sprocket on the driven shaft, a driving sprocket on the driving shaft, and a vibrating wheel on the vibrating shaft; the driving shaft is linked to the left rear middle shaft or the right rear middle shaft through a chain transmission, and the vibrating shaft is linked to the left front shaft or the right front shaft through a chain transmission; a film pressing rib plate is arranged on the upper part of the conveyor chain, and the film pressing rib plate is connected between the left plate frame and the right plate frame through a film pressing fulcrum shaft connected in the middle thereof, and the front part of the film pressing rib plate is connected to the film pressing driving shaft, and the two ends of the film pressing driving shaft are respectively connected to The left connecting plate and the right connecting plate are connected; a film connecting rib plate is arranged at the lower part of the conveyor chain, the front end of the film connecting rib plate is connected to the rear lower part between the left plate frame and the right plate frame through an arc plate shaft, the rear end of the film connecting rib plate is connected to the film connecting transverse axis, and the two ends of the film connecting transverse axis are respectively connected to the left plate frame and the right plate frame through a swing arm plate shaft; the rotary tillage mechanism comprises a left knife shaft assembly and a right knife shaft assembly installed at the rear lower part of the frame and connected by the lower horizontal output shaft of the rear gear box; the film stubble collecting device is installed at the rear upper part of the frame.

[0006] Preferably, the film stubble collecting device is two round balers arranged on both sides of the rear gearbox at the upper rear part of the frame, and the round balers on the left and right sides are driven by the left rear middle shaft and the right rear middle shaft respectively. The width of the round baler is generally about 1-1.5 meters. Bales exceeding 1.5 meters are easy to break and difficult to carry. The two round balers arranged side by side on the left and right can increase the working width to 2-3 meters. In addition, the two round balers are suitable for driving and connecting with the rear gearbox arranged in the middle of the rear part of the frame, which also solves the left and right balance problem.

[0007] Preferably, an elastic soil leveling drag plate mounted on the frame is provided at the rear of the left cutter shaft assembly and the right cutter shaft assembly.

[0008] Preferably, there are two running wheels, which are respectively installed in the middle of the left and right sides of the frame through wheel arms and hydraulic cylinders. In the non-operating state, the hydraulic cylinder extends to drive the running wheels to fall, lifts the machine body, and can be transported by walking; in the non-operating state, the hydraulic cylinder retracts to drive the running wheels to lift, and drops the machine body, so that the ground can be leveled.

[0009] Preferably, cutting assemblies are provided on both sides of the digging shovel, and the cutting assemblies include a disc arm mounted on the frame and a cutting disc axially connected to the lower end of the disc arm. The cutting disc can cut soil, root stubble and residual film, which is conducive to reducing entanglement and reducing operation resistance.

[0010] Preferably, a soil-moving assembly is provided on the upper part of the digging shovel, and the soil-moving assembly includes a soil-moving shaft, a soil-moving plate is provided on the soil-moving shaft, and the soil-moving shaft is linked to the left front shaft or the right front shaft through a chain transmission.

[0011] Preferably, the frame includes a left longitudinal beam and a right longitudinal beam, the front portion between the left longitudinal beam and the right longitudinal beam is connected to the first cross beam and the second cross beam, the rear portion between the left longitudinal beam and the right longitudinal beam is connected to the third cross beam and the fourth cross beam, the front ends of the left longitudinal beam and the right longitudinal beam are connected to a herringbone frame, and two left-right symmetrical short longitudinal beams are connected between the herringbone frame and the first cross beam and the second cross beam.

[0012] Preferably, a triangular plate is connected to the upper and lower sides of the front end of the herringbone frame, a shaft sleeve is vertically installed on the triangular plate, and a universal depth-limiting wheel is installed on the shaft sleeve.

[0013] Preferably, a traction frame is connected to the front end of the herringbone frame.

[0014] Working principle of the invention Power transmission: The tractor drives the whole machine forward through the traction frame and provides power for the transmission mechanism. The power is transmitted to the front gearbox and the rear gearbox through the universal coupling. The front gearbox drives the left front axle and the right front axle to rotate, and the rear gearbox drives the left rear middle axle and the right rear middle axle to rotate.

[0015] Shoveling operation: The left and right eccentric wheels on the left and right front axles rotate, driving the left and right connecting plates connected thereto to move, thereby causing the left and right plates of the shovel to swing around the axial joints with the left and right plate frames, and cooperate with the main plate and blade of the shovel to shovel up the soil. The cutting discs on both sides of the shovel rotate driven by the disc arm to cut the soil, stubble and residual film, reducing winding and operating resistance. The soil-moving assembly on the top of the shovel, driven by the soil-moving shaft, quickly moves the shoveled soil to the ring chain plate of the conveyor chain.

[0016] Soil screening and conveying: The rear gearbox drives the left rear middle shaft or the right rear middle shaft, and drives the driving shaft of the conveyor chain to rotate through the chain, so that the ring chain plate runs. At the same time, the left front shaft or the right front shaft drives the vibration wheel on the vibration shaft to rotate through the chain, so that the conveyor chain vibrates to assist in separating the soil from the residual film and root stubble. Driven by the film pressing drive shaft, the film pressing rib plate swings slightly with the film pressing fulcrum axis as the axis, crushing the soil, promoting the separation of root stubble, residual film and soil, improving the soil screening rate, and preventing the residual film from being blown away by the wind. Driven by the transmission mechanism, the film receiving rib plate swings back and forth, catching the small residual film and root stubble that leak from under the ring chain plate, and returns to the top of the ring chain plate through the arc plate, improving the recovery rate of residual film and root stubble.

[0017] Rotary tillage operation: The horizontal output shaft at the lower part of the rear gear box drives the left knife shaft assembly and the right knife shaft assembly to rotate, and the soil after the sieve is transported is rotary tilled to break up the soil clods and make the soil more fine and flat.

[0018] Film stubble collection: The left rear center axis and the right rear center axis respectively drive the round bale balers on both sides of the upper rear part of the frame to collect and pack the residual film and root stubble transported by the conveyor chain for subsequent processing.

[0019] Depth control: The universal depth limiting wheel is installed at the front end of the A-frame through a triangle plate and a shaft sleeve. The height of the depth limiting wheel can be adjusted according to actual operation requirements to control the soil penetration depth of the entire machine and ensure the operation quality.

[0020] Compared with the prior art, the present invention has the following advantages: (1) Multifunctional integration: It integrates the functions of residual film recovery and rotary tillage, which reduces the investment in farmland operation equipment, reduces operation costs, and improves operation efficiency. One device can complete multiple operations, avoiding the cumbersome process of frequent switching of multiple devices between farmlands, saving time and labor costs.

[0021] (2) High recovery rate and good separation effect: The coordinated work of the film pressing rib plate and the film connecting rib plate effectively improves the recovery rate of residual film and root stubble, reduces the residual amount of residual film in the soil, and reduces white pollution. At the same time, through the action of the vibrating conveyor chain and the film pressing rib plate, the soil is fully separated from the residual film and root stubble, and the recovered residual film and root stubble carry less soil, which improves the recovery quality. Under different soil conditions, such as clay, sandy soil, etc., it can maintain a good separation and recovery effect.

[0022] (3) High quality of land preparation: The rotary tillage mechanism uses a left blade shaft assembly and a right blade shaft assembly, and cooperates with an elastic soil leveling drag plate to perform deep rotary tillage and leveling of the soil, making the soil fine and uniform, meeting the requirements of crop planting. The elastic soil leveling drag plate can automatically adjust the contact pressure with the ground according to the soil conditions, further improving the flatness of the land preparation, which is conducive to seed germination and crop growth.

[0023] (4) Reasonable structural design: Two round balers are symmetrically arranged on the upper rear part of the frame, which not only increases the working tillage width, but also ensures the left-right balance of the equipment and improves the working stability. The travel wheel is controlled by the hydraulic cylinder to lift and lower, which is convenient for the equipment to switch between the transportation and working states, and the operation is simple and flexible. The setting of the cutting component and the soil-moving component respectively solves the entanglement problem and soil congestion problem during the operation process, ensuring the smooth operation of the equipment. The replaceable design of the cutting disc facilitates timely replacement after wear and reduces maintenance costs.

[0024] (5) Strong adaptability: The overall structure of the equipment is compact and has wide adaptability, and it can be applied to farmland operations of different sizes. The design of the universal depth-limiting wheel enables the equipment to flexibly adjust the operating depth according to different terrains and agronomic requirements to meet diverse operating needs. Whether it is a large area of ​​farmland in the plains or a small piece of cultivated land in the mountains, it can efficiently complete the operation task. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A schematic diagram of the three-dimensional structure of the present invention from the upper right front perspective; Figure 2 A schematic diagram of the three-dimensional structure of the present invention from the upper left rear perspective; Figure 3 The present invention cuts away the right side portion of the right view; Figure 4 A right side view of the components associated with the transmission mechanism of the present invention; Figure 5 A schematic diagram of the three-dimensional structure of the film pressing and rib arrangement plate, the film connecting and rib arrangement plate, the soil shoveling mechanism and related components of the present invention; Figure 6 A schematic diagram of the three-dimensional structure of the conveyor chain, rear gear box, rotary tillage mechanism and related components of the present invention; In the figure: 111 left longitudinal beam, 112 right longitudinal beam, 113 first cross beam, 114 second cross beam, 115 third cross beam, 116 fourth cross beam, 117 herringbone, 118 short longitudinal beam, 12 left plate frame, 13 right plate frame, 14 walking wheel, 141 wheel arm, 142 hydraulic cylinder, 15 universal depth limiting wheel, 151 triangular plate, 152 bushing, 16 traction frame, 21 universal coupling, 22 front gear box, 221 left front axle, 222 right front axle, 23 rear gear box, 231 left rear middle axle, 232 right rear middle axle, 311 shovel left plate, 312 shovel right plate, 313 shovel main plate, 314 blade, 32 left connecting plate, 33 left eccentric wheel, 34 right connecting plate, 35 right eccentric wheel, 411 ring chain plate, 412 driven shaft, 413 driven sprocket, 414 driving shaft, 415 driving sprocket, 416 vibration shaft, 417 vibration wheel, 42 film pressing rib plate, 421 film pressing fulcrum shaft, 422 film pressing drive shaft, 43 film connecting rib plate, 431 arc plate, 432 film connecting horizontal axis, 433 swing arm plate, 51 left knife shaft assembly, 52 right knife shaft assembly, 53 elastic soil leveling drag plate, 6 round bale baler, 71 disk arm, 72 cutting disk, 81 soil-moving shaft, 82 soil-moving plate. DETAILED DESCRIPTION

[0026] The following embodiments of the technical solution of the present invention are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and are therefore only used as examples, and cannot be used to limit the protection scope of the present invention.

[0027] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by those skilled in the art to which the present invention belongs.

[0028] In the description of the present application, it should be understood that the terms "lateral", "upper", "lower", "front", "rear", "left", "right", "inside", etc., indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0029] In addition, the terms "first", "second", etc. are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "plurality" is more than two, unless otherwise clearly and specifically defined.

[0030] In this application, unless otherwise clearly specified and limited, the terms "installation", "connection", "fixation" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Embodiment: As shown in Figures 1 to 6, a residual film recovery rotary tillage machine comprises a frame, a transmission mechanism, a soil shoveling mechanism, a soil screening and conveying mechanism, a rotary tillage mechanism and a film stubble collecting device; The frame includes a frame, a left plate frame 12, a right plate frame 13, a walking wheel 14 and a traction frame 16; the frame includes a left longitudinal beam 111 and a right longitudinal beam 112, the front part between the left longitudinal beam 111 and the right longitudinal beam 112 is connected to the first cross beam 113 and the second cross beam 114, the rear part between the left longitudinal beam 111 and the right longitudinal beam 112 is connected to the third cross beam 115 and the fourth cross beam 116, the front end of the left longitudinal beam 111 and the right longitudinal beam 112 is connected to the herringbone frame 117, and two short longitudinal beams 118 symmetrically connected to the left and right are connected between the herringbone frame 117 and the first cross beam 113 and the second cross beam 114. A triangle plate 151 is connected to the upper and lower sides of the front end of the herringbone frame 117, a shaft sleeve 152 is vertically installed on the triangle plate 151, and a universal depth limiting wheel 15 is installed on the shaft sleeve 152. The traction frame 16 is connected to the front end of the herringbone frame 117. There are two traveling wheels 14, which are respectively installed at the middle of the left and right sides of the frame through wheel arms 141 and hydraulic cylinders 142.

[0032] The transmission mechanism comprises a front gearbox 22 and a rear gearbox 23 connected by a universal coupling 21. The lateral output shaft of the front gearbox 22 connects the left front axle 221 and the right front axle 222. The middle lateral output shaft of the rear gearbox 23 connects the left rear middle axle 231 and the right rear middle axle 232.

[0033] The shovel mechanism comprises a shovel 31 consisting of a left shovel plate 311, a right shovel plate 312, a main shovel plate 313 and a shovel blade 314. The front upper parts of the left shovel plate 311 and the right shovel plate 312 are respectively connected to the front lower parts of the left plate frame 12 and the right plate frame 13. The rear upper part of the left shovel plate 311 is connected to the left connecting plate 32, and the left connecting plate 32 is connected to the left eccentric wheel 33 on the left front shaft 221. The rear upper part of the right shovel plate 312 is connected to the right connecting plate 34, and the right connecting plate 34 is connected to the right eccentric wheel 35 on the right front shaft 222. Cutting assemblies are provided on both sides of the shovel 31. The cutting assemblies include a disk arm 71 installed on the frame and a cutting disk 72 connected to the lower end of the disk arm 71. A soil excavating assembly is provided on the upper part of the shovel 31. The soil excavating assembly includes a soil excavating shaft 81, and the soil excavating shaft 81 A soil-moving plate 82 is provided on the soil-moving shaft 81, and the soil-moving shaft 81 is connected to the right front shaft 222 through a chain transmission.

[0034] The soil screening and conveying mechanism includes a conveying chain 41 with a lower front and a higher rear installed between the left plate frame 12 and the right plate frame 13 at the rear of the digging shovel 31. The conveying chain 41 includes an annular chain plate 411, a driven sprocket 413 on a driven shaft 412, a driving sprocket 415 on a driving shaft 414, and a vibrating wheel 417 on a vibrating shaft 416; the driving shaft 414 is linked to the right rear middle shaft 232 through a chain transmission, and the vibrating shaft 416 is linked to the left front shaft 221 through a chain transmission; a film pressing rib plate 42 is arranged on the upper part of the conveying chain 41, and the film pressing rib plate 42 is axially connected between the left plate frame 12 and the right plate frame 13 through a film pressing fulcrum shaft 421 connected in the middle thereof, and the front part of the film pressing rib plate 42 is connected to a film pressing drive shaft 422, and the two ends of the film pressing drive shaft 422 are respectively connected to the left connecting plate 32 and the right connecting plate 34; A film-joining rib plate 43 is provided at the lower part, the front end of which is axially connected to the rear lower part between the left plate frame 12 and the right plate frame 13 through an arc plate 431, the rear end of which is connected to a film-joining transverse axis 432, and both ends of which are axially connected to the left plate frame 12 and the right plate frame 13 through swing arm plates 433.

[0035] The rotary tillage mechanism comprises a left cutter shaft assembly 51 and a right cutter shaft assembly 52 mounted at the rear lower part of the frame and connected by the lower lateral output shaft of the rear gear box 23; an elastic soil leveling drag plate 53 mounted on the frame is provided at the rear of the left cutter shaft assembly 51 and the right cutter shaft assembly 52.

[0036] The film stubble collecting device is two round bale balers 6 arranged on both sides of the rear gear box 23 at the rear upper part of the frame. The round bale balers 6 on the left and right sides are driven by the left rear middle shaft 231 and the right rear middle shaft 232 respectively.

[0037] Land preparation operation steps (1) Preparation before operation: Check whether the connections of the machine parts are firm, whether the transmission parts (such as the universal coupling 21, the front gear box 22, the rear gear box 23, the left front axle 221, the right front axle 222, the left rear middle axle 231, the right rear middle axle 232, etc.) are well lubricated, and whether the hydraulic cylinder 142 is working properly. According to the soil conditions and agronomic requirements of the operation plot, adjust the height of the universal depth limiting wheel 15 to determine the appropriate soil penetration depth. Connect the machine to the tractor correctly and ensure that the traction frame 16 is firmly installed.

[0038] (2) Starting the equipment: Start the tractor and put the engine in an idling state. Observe whether each component (such as the travel wheel 14, the conveyor chain 41, the left knife shaft assembly 51, the right knife shaft assembly 52, the round baler 6, etc.) is operating normally and whether there is any abnormal sound or vibration.

[0039] (3) Adjust the hydraulic system: Place the operating handle of the hydraulic cylinder 142 in the retracted position, lift the travel wheel 14, and lower the machine body to a suitable working height.

[0040] (4) Start operation: Slowly increase the throttle of the tractor to make the whole machine move forward at a constant speed, and start shoveling soil (digging shovel 31, shoveling left plate 311, shoveling right plate 312, shoveling main plate 313, shovel blade 314, etc.), sifting soil (conveying chain 41, film pressing rib plate 42, film connecting rib plate 43, etc.), rotary tillage (left knife shaft assembly 51, right knife shaft assembly 52) and residual film collection (round baler 6). During the operation, pay close attention to the operating status of the equipment. If blockage, abnormal vibration, etc. are found, stop the machine immediately for inspection and troubleshooting.

[0041] (5) Adjustment during operation: According to the actual conditions such as soil moisture, residual film and stubble content, the tractor's travel speed and power output should be adjusted in time to ensure the operation effect. If it is found that the residual film recovery rate is low or the soil screening is not thorough, the working conditions of the film pressing rib plate 42 and the film connecting rib plate 43 can be checked and corresponding adjustments can be made.

[0042] (6) End of operation: After completing the land preparation work on the work plot, reduce the throttle of the tractor to the idle state and stop the equipment. Put the operating handle of the hydraulic cylinder 142 in the extended position, let the walking wheel 14 fall, and lift the machine body. Separate the whole machine from the tractor, clean the soil, residual film and root stubble on the equipment, and perform maintenance on the equipment (including various parts of the frame such as the left longitudinal beam 111, the right longitudinal beam 112, etc., and various mechanism components) for the next use.

[0043] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present invention, and they should all be included in the scope of the claims and specification of the present invention.

Claims

1. A rotary tillage machine for recovering residual film, comprising a frame, a transmission mechanism, a soil shoveling mechanism, a soil screening and conveying mechanism, a rotary tillage mechanism and a film stubble collecting device; characterized in that: The frame comprises a frame, a left plate frame (12), a right plate frame (13), a walking wheel (14) and a traction frame (16); the transmission mechanism comprises a front gear box (22) and a rear gear box (23) connected by a universal coupling (21); a lateral output shaft of the front gear box (22) is connected to a left front axle (221) and a right front axle (222); a middle lateral output shaft of the rear gear box (23) is connected to a left rear middle axle (231) and a right rear middle axle (232); the earth-shoveling mechanism comprises an earth-shoveling shovel (31) composed of a left shovel plate (311), a right shovel plate (312), a main shovel plate (313) and a shovel blade (314); The front upper part is axially connected to the front lower part of the left plate frame (12) and the right plate frame (13), respectively; the rear upper part of the left plate (311) of the shovel is axially connected to the left connecting plate (32), the left connecting plate (32) is axially connected to the left eccentric wheel (33) on the left front shaft (221); the rear upper part of the right plate (312) of the shovel is axially connected to the right connecting plate (34), and the right connecting plate (34) is axially connected to the right eccentric wheel (35) on the right front shaft (222); the soil screening conveying mechanism comprises a conveying chain (41) with a lower front and a higher rear installed between the left plate frame (12) and the right plate frame (13) at the rear of the shovel (31); the conveying chain (41) comprises an annular chain plate (411), a driven sprocket (413) on the driven shaft (412), and a driving shaft The driving sprocket (415) on the conveyor chain (414) and the vibrating wheel (417) on the vibrating shaft (416); the driving shaft (414) is connected to the left rear middle shaft (231) or the right rear middle shaft (232) through a chain transmission, and the vibrating shaft (416) is connected to the left front shaft (221) or the right front shaft (222) through a chain transmission; a film pressing rib plate (42) is arranged on the upper part of the conveying chain (41), and the film pressing rib plate (42) is connected between the left plate frame (12) and the right plate frame (13) through a film pressing fulcrum shaft (421) connected to the middle part thereof; the front part of the film pressing rib plate (42) is connected to the film pressing driving shaft (422), and the two ends of the film pressing driving shaft (422) are respectively connected to the left connecting plate (32) and a right connecting plate (34); a film connecting rib plate (43) is arranged at the lower part of the conveying chain (41); the front end of the film connecting rib plate (43) is axially connected to the rear lower part between the left plate frame (12) and the right plate frame (13) through an arc plate (431); the rear end of the film connecting rib plate (43) is connected to a film connecting transverse axis (432); the two ends of the film connecting transverse axis (432) are respectively axially connected to the left plate frame (12) and the right plate frame (13) through a swing arm plate (433); the rotary tillage mechanism comprises a left knife shaft assembly (51) and a right knife shaft assembly (52) installed at the rear lower part of the frame and connected by a lower horizontal output shaft of a rear gear box (23); the film stubble collecting device is installed at the rear upper part of the frame.

2. The residual film recovery rotary tillage machine according to claim 1, characterized in that: The film stub collection device is two round bale balers (6) arranged on both sides of the rear gear box (23) at the upper rear part of the frame, and the round bale balers (6) on the left and right sides are driven to work by the left rear middle shaft (231) and the right rear middle shaft (232) respectively.

3. The residual film recovery rotary tillage machine according to claim 2, characterized in that: An elastic soil leveling drag plate (53) mounted on a frame is provided at the rear of the left cutter shaft assembly (51) and the right cutter shaft assembly (52).

4. The residual film recovery rotary tillage machine according to claim 3 is characterized in that: There are two running wheels (14), which are respectively installed in the middle of the left and right sides of the frame through wheel arms (141) and hydraulic cylinders (142).

5. The residual film recovery rotary tillage machine according to claim 4, characterized in that: Cutting assemblies are provided on both sides of the digging shovel (31), and the cutting assemblies include a disc arm (71) mounted on a frame and a cutting disc (72) axially connected to the lower end of the disc arm (71).

6. The residual film recovery rotary tillage machine according to claim 5, characterized in that: A soil-moving assembly is provided on the upper part of the digging shovel (31), the soil-moving assembly comprising a soil-moving shaft (81), a soil-moving plate (82) is provided on the soil-moving shaft (81), and the soil-moving shaft (81) is linked to the left front shaft (221) or the right front shaft (222) through a chain transmission.

7. The residual film recovery rotary tillage machine according to claim 6, characterized in that: The frame comprises a left longitudinal beam (111) and a right longitudinal beam (112); a first cross beam (113) and a second cross beam (114) are connected to the front portion between the left longitudinal beam (111) and the right longitudinal beam (112); a third cross beam (115) and a fourth cross beam (116) are connected to the rear portion between the left longitudinal beam (111) and the right longitudinal beam (112); front ends of the left longitudinal beam (111) and the right longitudinal beam (112) are connected to a herringbone frame (117); and two left-right symmetrical short longitudinal beams (118) are connected between the herringbone frame (117) and the first cross beam (113) and the second cross beam (114).

8. The residual film recovery rotary tillage machine according to claim 7, characterized in that: A triangular plate (151) is connected to the upper and lower sides of the front end of the herringbone frame (117), a shaft sleeve (152) is vertically installed on the triangular plate (151), and a universal depth limiting wheel (15) is installed on the shaft sleeve (152).

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