Ploughing layer double-roller type film-soil separating device and residual film recycling machine comprising same

Abstract

The utility model provides a plough layer double-roller type film-soil separating device and a residual film recycling machine comprising the plough layer double-roller type film-soil separating device. The plough layer double-roller type film-soil separating device comprises a soil lifting mechanism, a first-stage screening mechanism, a first-stage double-roller mechanism, a second-stage double-roller mechanism, a second-stage screening mechanism and a machine frame. The soil lifting mechanism, the first-stage screening mechanism, the first-stage roller pair mechanism, the second-stage roller pair mechanism and the second-stage screening mechanism are all installed on the machine frame. The soil lifting mechanism is arranged at the front end of the first-stage screening mechanism, the first-stage double-roller mechanism is arranged below the rear end of the first-stage screening mechanism, and the second-stage double-roller mechanism is arranged below the first-stage double-roller mechanism. And a second-stage screening mechanism is arranged below the second-stage double-roller mechanism, a shaking mechanism is arranged on the second-stage screening mechanism, and the shaking mechanism is used for driving the second-stage screening mechanism to shake. The plastic film residue recycling machine is scientific and reasonable in structural design, high in plastic film residue recycling rate, low in soil content, high in efficiency, high in reliability, and particularly suitable for complex and difficult-to-operate working environments with serious soil hardening in northwest regions.

Description

Technical Field

[0001] The utility model belongs to the technical field of residual film recovery, and particularly relates to a tillage layer double-roller film-soil separation device and a residual film recovery machine comprising the device. Background Art

[0002] The use of mulch film has the effect of increasing temperature and retaining moisture, which is beneficial to the proliferation of soil microorganisms, accelerating the conversion of humus into inorganic salts, and is beneficial to crop absorption. However, mulch film cultivation has some adverse effects, such as years of mulch film, and the residual film is not completely removed, causing soil pollution. The long-term accumulation of residual film in the tillage layer destroys the structure of the soil, thus affecting the development of the root system of crops.

[0003] The tillage film recycling machine is designed to address the problem that the surface film penetrates 15-20cm underground due to long-term mulch covering, affecting the development and growth of crop roots. The tillage film becomes fragmented and easily damaged during long-term plowing operations, and its structural toughness decreases, which leads to the difficulty in recycling the tillage film and the low recovery rate.

[0004] The ground film used abroad is thick and has good tensile strength. The main machines are used to recycle residual film on the surface. Most ground film recycling machines adopt the winding principle, or a combination of film-lifting machines and winding machines. The film collection mechanism is relatively simple and the recovery rate is high, but there are fewer machines for recycling residual film in the plowing layer.

[0005] The climate in Xinjiang and other northwestern regions is dry, and the lack of precipitation has caused serious soil compaction. The surface film is not completely recovered at one time, resulting in residual film accumulation and aging in the soil layer, which affects the normal development of crop roots and causes serious white pollution in cultivated land. Domestic researchers have developed a variety of machine models based on different film removal and film removal methods, but there are problems such as low recycling efficiency, incomplete one-time recycling, single machine function, and poor working reliability. The effect of recycling residual film in the tillage layer is not satisfactory, and it is still facing the problem of being unable to effectively cope with the complex soil operation environment in the northwest region. The residual film in the tillage layer of corn fields, cotton fields, etc. is difficult to recover, the mechanical operation is unstable, the degree of mechanical automation is low, the residual film seriously affects the growth of crops, and the efficiency of the recycling machine operation cannot be guaranteed. Utility Model Content

[0006] In view of the above technical problems, the utility model provides a tillage layer double-roller film-soil separation device and a residual film recovery machine including the device. The structural design is scientific and reasonable, the residual film recovery rate is high, the soil content is low, the efficiency is high, and the reliability is strong. It is particularly suitable for the complex and difficult working environment in the Northwest region where the soil is severely compacted.

[0007] Note that the description of these purposes does not prevent the existence of other purposes. One mode of the present invention does not need to achieve all of the above purposes. Purposes other than the above purposes can be extracted from the description of the specification, drawings, and claims.

[0008] The utility model achieves the above technical purpose through the following technical means.

[0009] A tillage layer double-roller type film-soil separation device, comprising a soil lifting mechanism, a primary screening mechanism, a primary double-roller mechanism, a secondary double-roller mechanism, a secondary screening mechanism and a frame;

[0010] The soil lifting mechanism, the first-level screening mechanism, the first-level roller mechanism, the second-level roller mechanism and the second-level screening mechanism are all installed on the frame; the soil lifting mechanism is arranged at the front end of the first-level screening mechanism, a first-level roller mechanism is arranged below the rear end of the first-level screening mechanism, and a second-level roller mechanism is arranged below the first-level roller mechanism; a second-level screening mechanism is arranged below the second-level roller mechanism, and a shaking mechanism is arranged on the second-level screening mechanism, and the shaking mechanism is used to drive the second-level screening mechanism to shake.

[0011] In the above scheme, the roller spacing between the active fixed roller shaft and the passive movable roller shaft of the secondary roller mechanism is smaller than that of the primary roller mechanism, and the rotation speed of the active fixed roller shaft of the secondary roller mechanism is greater than that of the primary roller mechanism.

[0012] In the above scheme, the first-level screening mechanism includes a front conveying screen bar, an auxiliary fixed wheel and a driving wheel shaft;

[0013] The front conveying screen bars are installed on the frame through auxiliary fixed wheels, and the driving wheel shaft is connected to the front conveying screen bars, driving the front conveying screen bars to convey materials to fall into the primary roller mechanism.

[0014] In the above scheme, the first-level roller mechanism includes a first-level active fixed roller shaft, a first-level passive movable roller shaft and a first-level hydraulic spring;

[0015] The first-level active fixed roller shaft and the first-level passive movable roller shaft are arranged opposite to each other, and a first roller spacing is left in between. The first-level passive movable roller shaft is installed on a movable bearing seat. One end of a first-level hydraulic spring is connected to the movable bearing seat, and the other end is connected to the frame. The movable bearing seat is slidably connected to a sealed slide rail on the frame; the first-level active fixed roller shaft is connected to a driving mechanism.

[0016] Furthermore, the two-stage roller mechanism includes a two-stage active fixed roller shaft, a two-stage passive movable roller shaft and a two-stage hydraulic spring;

[0017] The secondary active fixed roller shaft and the secondary passive movable roller shaft are arranged relatively to each other, and a second roller spacing is left in between. The secondary passive movable roller shaft is installed on a movable bearing seat. One end of the secondary hydraulic spring is connected to the movable bearing seat, and the other end is connected to the frame. The movable bearing seat is slidably connected to the sealed slide rail on the frame. The secondary active fixed roller shaft is connected to the driving mechanism. The second roller spacing is smaller than the first roller spacing, and the rotation speed of the secondary active fixed roller shaft is greater than that of the primary active fixed roller shaft.

[0018] In the above scheme, a plurality of roller surface racks are provided on the circumferential surfaces of the active fixed roller shafts of the primary roller mechanism and the secondary roller mechanism.

[0019] In the above scheme, the shaking mechanism of the secondary screening mechanism includes a shaking shaft driving tooth, a bearing, a square bearing seat, a shaking shaft, a shaking cam plate and a rotating wheel;

[0020] The shaking shaft driving teeth are connected to the shaking shaft, and bearings are respectively provided at both ends of the shaking shaft, and the bearings are installed on the frame through square bearing seats; a plurality of shaking cam discs are provided on the shaking shaft, and a rotating wheel is provided on the shaking cam disc, and the rotating wheel contacts the screen of the secondary screening mechanism.

[0021] The above scheme also includes a retaining plate; the retaining plate is installed behind the first-level screening mechanism and is located above and behind the first-level roller mechanism.

[0022] The above scheme also includes a soil-moving rotary cutter; the soil-moving rotary cutter is installed on the frame and located in the front upper part of the soil-moving mechanism, and is used to move soil blocks to the primary screening mechanism.

[0023] A residual film recovery machine comprises the plowing layer double-roller film-soil separation device.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] The utility model has a scientific and reasonable structural design, a high residual film recovery rate, a low soil content, high efficiency, and strong working reliability, and is particularly suitable for the complex and difficult working environment in the northwest region where the soil is severely compacted.

[0026] The utility model has a primary roller mechanism, a secondary roller mechanism and a secondary screening mechanism, which respectively crush the agglomerated soil containing residual film and separate the film-soil after crushing, and can quickly separate the residual film from debris. It is an operating machine integrating soil lifting, soil crushing, soil-film separation and residual film recovery.

[0027] Note that the description of these effects does not prevent the existence of other effects.

[0028] There is

[0029] Effects other than those described above can be clearly seen and extracted from the description of the specification, drawings, claims, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 The outer frame of the roller type membrane soil separation device according to one embodiment of the utility model is schematically shown as a whole. Figure 1 ;

[0031] Figure 2 The outer frame of the roller type membrane soil separation device according to one embodiment of the utility model is schematically shown as a whole. Figure 2 ;

[0032] Figure 3 It is a top view schematic diagram of a double-roller membrane-soil separation device according to one embodiment of the utility model;

[0033] Figure 4 This is a schematic diagram of the lateral internal structure of a double-roller membrane-soil separation device according to one embodiment of the utility model;

[0034] Figure 5 This is a schematic diagram of the front rotating shaft structure of the secondary vibrating screen in one embodiment of the utility model;

[0035] Figure 6 A schematic diagram of the roller structure of a roller-type membrane-soil separation device according to one embodiment of the utility model;

[0036] Figure 7 This is a schematic diagram of the triangular cam disc structure of a roller-type membrane-soil separation device according to one embodiment of the utility model;

[0037] Figure 8 It is a schematic diagram of the shaking shaft of the double-roller type membrane-soil separation device according to one embodiment of the utility model.

[0038] In the figure: 1. Soil lifting mechanism; 2. First-level screening mechanism; 201. Front conveying screen bar; 202. Auxiliary fixed wheel; 203. First-level vibrating screen driving wheel shaft; 3. Film collecting box; 4. Fan; 5. First-level active fixed roller shaft; 6. First-level passive movable roller shaft; 7. First-level hydraulic spring; 8. Second-level screening mechanism; 801. Shaking shaft driving gear; 802. Bearing; 803. Square bearing seat; 804. Shaking shaft; 805. Shaking cam plate; 80 6. Rotating wheel; 9. Soil retaining plate; 10. Frame; 11. Soil-moving rotary cutter; 12. Secondary active fixed roller shaft; 13. Secondary passive movable roller shaft; 14. Secondary hydraulic spring; 15. Active roller shaft driving gear; 16. Sealed slide rail; 17. Moving bearing seat; 18. Roller surface rack; 19. Tensioning wheel; 20. Gearbox output gear; 21. Secondary vibration screen front rotating shaft; 22. Secondary vibration screen mesh; 23. Secondary vibration screen driving shaft. DETAILED DESCRIPTION

[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments 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 intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0040] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "front", "back", "left", "right", "up", "down", "axial", "radial", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0041] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" 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 or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figure 1-4The figure shows a preferred embodiment of the tillage layer double-roller membrane-soil separation device of the utility model, the tillage layer double-roller membrane-soil separation device comprises a soil-lifting mechanism 1, a primary screening mechanism 2, a primary double-roller mechanism, a secondary double-roller mechanism, a secondary screening mechanism 8 and a frame 10; the soil-lifting mechanism 1, the primary screening mechanism 2, the primary double-roller mechanism, the secondary double-roller mechanism and the secondary screening mechanism 8 are all installed on the frame 10; the soil-lifting mechanism 1 is arranged at the front end of the primary screening mechanism 2, a primary double-roller mechanism is arranged below the rear end of the primary screening mechanism 2, and a secondary double-roller mechanism is arranged below the primary double-roller mechanism; the roller spacing between the active fixed roller axle and the passive movable roller axle of the secondary double-roller mechanism is smaller than that of the primary double-roller mechanism, and the rotation speed of the active fixed roller axle of the secondary double-roller mechanism is greater than that of the primary double-roller mechanism; a secondary screening mechanism 8 is arranged below the secondary double-roller mechanism, and a shaking mechanism is arranged on the secondary screening mechanism 8, and the shaking mechanism is used to drive the secondary screening mechanism 8 to shake.

[0043] The primary screening mechanism 2 includes a front conveying screen bar 201, an auxiliary fixed wheel 202 and a driving wheel shaft 203; the front conveying screen bar 201 is installed on the frame 10 through the auxiliary fixed wheel 202, and the driving wheel shaft 203 is connected to the front conveying screen bar 201, driving the front conveying screen bar 201 to convey the material to fall into the primary roller mechanism.

[0044] like Figure 6 As shown, the first-level roller mechanism includes a first-level active fixed roller shaft 5, a first-level passive movable roller shaft 6 and a first-level hydraulic spring 7; the first-level active fixed roller shaft 5 and the first-level passive movable roller shaft 6 are arranged opposite to each other, and a first roller spacing is left in the middle, the first-level passive movable roller shaft 6 is installed on the movable bearing seat 17, one end of the first-level hydraulic spring 7 is connected to the movable bearing seat 17, and the other end is connected to the frame 10, and the movable bearing seat 17 is slidably connected to the sealed slide rail 16 on the frame 10; the first-level active fixed roller shaft 5 and the first-level passive movable roller shaft 6 are respectively provided with gears and connected by a chain, and the gear of the first-level active fixed roller shaft 5 is connected to the driving mechanism. The first-level hydraulic spring 7 enables the movable bearing seat 17 to slide on the sealed slide rail 16, providing crushing and extrusion force for the first-level active fixed roller shaft 5 and the first-level passive movable roller shaft 6.

[0045] In a specific embodiment of the present invention, the first-level active fixed roller axle 5 and the first-level passive movable roller axle 6 are arranged with the front higher and the back lower. When the residual film recycling machine is in traction, the connection between the body and the tractor will produce an inclination angle with the front lower and the back higher. The staggered arrangement of the same-level rollers can compensate for the tilting effect of the whole machine. In a specific embodiment of the present invention, specifically, the working distance between the first-level active fixed roller axle 5 and the second-level active fixed roller axle 6 is 5-8cm, and the first-level active fixed roller axle 5 is 4cm higher than the second-level active fixed roller axle 6.

[0046] The secondary roller mechanism includes a secondary active fixed roller shaft 12, a secondary passive movable roller shaft 13 and a secondary hydraulic spring 14; the secondary active fixed roller shaft 12 and the secondary passive movable roller shaft 13 are arranged opposite to each other, and a second roller spacing is left in the middle; the secondary passive movable roller shaft 13 is installed on a movable bearing seat 17; one end of the secondary hydraulic spring 14 is connected to the movable bearing seat 17, and the other end is connected to the frame 10; the movable bearing seat 17 is slidably connected to the sealing slide rail 16 on the frame 10; the secondary active fixed roller shaft 12 is connected to the driving mechanism; the second roller spacing is smaller than the first roller spacing, and the rotation speed of the secondary active fixed roller shaft 12 is greater than that of the primary active fixed roller shaft 5. The secondary hydraulic spring 14 enables the movable bearing seat 17 to slide on the sealing slide rail 16, providing crushing and extrusion force for the secondary active fixed roller shaft 12 and the secondary passive movable roller shaft 13.

[0047] like Figure 6 As shown, a plurality of roller surface racks 18 are provided on the circumferential surface of the active fixed roller axle of the primary roller mechanism and the secondary roller mechanism.

[0048] like Figure 7 and 8 As shown, the shaking mechanism of the secondary screening mechanism 8 includes a shaking shaft driving tooth 801, a bearing 802, a square bearing seat 803, a shaking shaft 804, a shaking cam disc 805 and a rotating wheel 806; the shaking shaft driving tooth 801 is connected to the shaking shaft 804, and bearings 802 are respectively provided at both ends of the shaking shaft 804, and the bearings 802 are installed on the frame 10 through the square bearing seat 803; a plurality of shaking cam discs 805 are provided on the shaking shaft 804, and a rotating wheel 806 is provided on the shaking cam disc 805, and the rotating wheel 806 is in contact with the secondary vibration screen mesh 22 of the secondary screening mechanism 8. The screen mesh is a flexible mesh screen surface, preferably a fine-mesh screen surface mesh, which further screens the crushed material. Preferably, the shaking mechanism is arranged at the front section of the secondary screening mechanism 8, and the vibration screening work is completed at the front end of the secondary screen surface to facilitate the membrane impurity separation operation at the rear end. Preferably, the shaking cam disc 805 is a triangular turntable, and rotating wheels 806 are respectively provided on the three corners of the triangular turntable, and the shaking shaft 804 provides amplitude for the screen surface.

[0049] Preferably, the number of the shaking shafts 804 is two, and the double shaking structure is adopted to greatly increase the up and down vibration amplitude and frequency of the secondary vibrating screen 22.

[0050] Preferably, the front end of the secondary vibrating screen mesh 22 is provided with a secondary vibrating screen mesh front rotating shaft 21 and the rear end is provided with a secondary vibrating screen driving shaft 23; the secondary vibrating screen driving shaft 23 is connected to the driving mechanism to drive the conveying movement of the secondary vibrating screen mesh 22; a plurality of shifting teeth are provided on the circumference of the secondary vibrating screen mesh front rotating shaft 21, such as Figure 5 As shown, the broken film is assisted to be sent to the secondary vibrating screen 22.

[0051] Preferably, the secondary vibrating screen mesh 22 is a long screen, which greatly increases the efficiency of the soil film separation process and residual film recovery.

[0052] like Figure 1 and 4 As shown, it also includes a retaining plate 9; the retaining plate 9 is installed behind the primary screening mechanism 2 and is located above and behind the primary roller mechanism to guide the soil blocks to the primary roller mechanism.

[0053] like Figure 2 As shown, it also includes a soil-moving rotary cutter 11; the soil-moving rotary cutter 11 is installed on the frame 10 and is located in the front upper part of the soil-moving mechanism 1, and is used to move soil blocks to the primary screening mechanism 2.

[0054] like Figure 2 As shown, the earth-moving mechanism 1 includes a blade. Preferably, the blade is a sawtooth blade.

[0055] The active fixed roller shafts of the primary roller mechanism and the secondary roller mechanism are gear-engaged for transmission. The shaft at the front end of the secondary screening mechanism 8 rotates passively, and the secondary vibration screen driving shaft 23 at the rear end is connected to the secondary vibration screen driving shaft 23 rotating wheel through a belt.

[0056] like Figure 4 As shown, the first-level vibrating screen driving shaft 203 of the first-level screening mechanism 2 is connected to the gearbox output gear 20 through a chain drive, the first-level vibrating screen driving shaft 203 drives the second-level vibrating screen active shaft 23 through the sprocket, the first-level active fixed roller shaft 5 is connected to the gearbox output gear 20, and the first-level active fixed roller shaft 5 and the second-level active fixed roller shaft 12 are gear-engaged for transmission, and the second-level vibrating screen active shaft 23 drives the shaking shaft driving teeth 801 through the sprocket, thereby driving the shaking shaft 804 to move.

[0057] The utility model is provided with a soil-raising mechanism 1 in the front to loosen the cultivated layer soil, which is preliminarily screened by the first-level screening mechanism 2, and then crushed by the first-level roller mechanism and the second-level roller mechanism to reduce the specifications of the crushed soil, and then the second-level vibration screen front rotating shaft 21 of the second-level screening mechanism 8 is rotated, and the rotation direction of the second-level vibration screen front rotating shaft 21 is opposite to the walking direction of the residual film recovery machine, and the picking teeth on the second-level vibration screen front rotating shaft 21 can easily grab the residual film cleanly, because the spacing between the screen holes of the second-level vibration screen 22 is slightly larger than the specifications of the soil blocks after crushing by the soil crushing mechanism, in the process of the screen holes grabbing the residual film and crushed soil, the crushed soil falls directly from the gaps between the screen holes, which effectively reduces the amount of crushed soil entering the machine body, and effectively reduces the load on the machine body. The crushed material is further processed by a shaking mechanism and a fan 4. The crushed soil is shaken off the sieve holes by vibration, and the residual film is discarded. The rear-end fan 4 sucks the residual film into the film collecting box 3, avoiding the accumulation of residual film and stubble, completing the film-soil separation work, and effectively reducing the amount of residual film in the cultivated land, ensuring the healthy growth of the crop roots and increasing the crop yield of the cultivated land.

[0058] A residual film recovery machine comprises the plowing layer double-roller film-soil separation device.

[0059] The residual film recovery machine also includes a film collecting box 3 and a fan 4; the film collecting box 3 is located behind the secondary screening mechanism 8, the inlet of the fan 4 is located at the upper rear of the secondary screening mechanism 8, and the outlet of the fan 4 is connected to the film collecting box 3 through an air transmission duct to suck the residual film into the film collecting box 3.

[0060] The first-level roller mechanism and the second-level roller mechanism of the utility model are sliding roller mechanisms, and the scraper-type soil-lifting mechanism 1 is used to turn over the residual film and soil blocks in the tillage layer, and the first-level screening mechanism 2 is used to preliminarily screen and transport them to the roller mechanism for extrusion. The materials are first transmitted through the first-level screening mechanism 2 to enter the first-level roller mechanism, and the large pieces of soil are initially crushed, and then fall into the second-level roller mechanism with a smaller roller spacing at the lower level for secondary soil crushing. At the same time, the passive moving roller on one side is used to slide to prevent hard objects such as large-sized stones from falling into the roller wheel and causing a jamming fault. The rollers rotating in opposite directions are used to squeeze and crush the large soil blocks to separate the residual film from the soil blocks. The second-level screening mechanism 8 is used to throw the materials on the screen surface at a fixed frequency for screening, and the residual film and stubble and other debris are separated. Finally, they are collected in the film collecting box 3, and the residual film is effectively recovered, and the residual film recovery rate is improved. The structure design of the device is scientific and reasonable, with a high residual film recovery rate, low soil content, high efficiency, and suitable for the complex and difficult working environment in the northwest region where the soil is severely compacted.

[0061] Aiming at the problems of soil compaction and large lumps of soil in the northwest region, which affect the efficiency of subsequent film-soil screening, the utility model optimizes and improves key components such as film-soil separation, designs a first-level roller mechanism, a second-level roller mechanism, and a second-level screening mechanism 8, which respectively perform a process of crushing agglomerated soil containing residual film and separating the crushed film-soil, to ensure that the film-impurity separation system at the rear end can also quickly separate the residual film from debris, thereby improving the recovery rate of residual film in the plow layer. The utility model is an operating machine that integrates soil lifting, soil crushing, soil-film separation, fault control, and residual film recovery.

[0062] In a specific embodiment of the present invention, the residual film recovery machine works as follows:

[0063] A 150-horsepower heavy-duty four-wheel tractor is used for traction, and the residual film recycling machine is hung on the tail of the tractor. The tractor outputs power, and the output power is matched to each active wheel axle through the gearbox. When the whole machine moves forward, the shovel blade enters the soil and crushes the soil, and the material containing crushed soil and debris is transported to the rear-end primary screening mechanism 2 through the soil-moving rotary cutter 11 to avoid material accumulation. The crushed material is initially separated from the film and soil on the primary screening mechanism 2, reducing the workload of the rear-end roller mechanism and ensuring the soil crushing efficiency. The material after the primary screening enters the primary roller mechanism and the secondary roller mechanism in turn under the action of the retaining plate 9, and is crushed and crushed by the active fixed roller shaft and the passive movable roller shaft under the extrusion force provided by the hydraulic spring, which is beneficial to avoid the problem of large stones and other hard objects that may appear in the material mixing into the material and causing jamming and damage in the roller mechanism. The passive movable roller shaft is matched with the movable bearing seat 17, and the movable bearing seat 17 can move on the sealed slide rail 16. The circumferential surface of the primary active fixed roller shaft 5 is provided with a plurality of roller surface racks. 18 rotates at high speed to break and squeeze large soil blocks and send them into the secondary roller mechanism with a smaller wheel spacing at the lower level, further crushing the initially processed materials, improving the soil block crushing rate and residual film recovery rate, wherein the roller surface rack 18 used greatly avoids the problem that large pieces of residual film are wrapped around the roller wheel shaft and the residual film is further crushed, which makes the residual film more difficult to recover. After crushing, the material falls into the secondary screening mechanism 8, and the secondary vibrating screen mesh 22 adopts a fine-pore screen mesh structure to transport the material, thereby increasing the amount of residual film recovered and achieving the recovery of small pieces of residual film separation. A shaking cam plate 805 is arranged under the secondary vibrating screen mesh 22 of the secondary screening mechanism 8 to provide a fixed amplitude for the screen surface, and the broken soil is thrown up during the material conveying process, making it easier to screen from the screen surface. A fan 4 is arranged at the upper end of the screen surface, and the broken film and the separated residual film can also be blown to the rear end film collecting box 3, thereby reducing the possibility of leakage from the conveyor belt at the end of the belt due to the residual broken soil and the failure to complete the film-soil separation, and improving the residual film recovery rate of each mu of residual film residual land.

[0064] The utility model adopts a soil-lifting mechanism 1 to go deep into the underground plough layer to solve the soil-lifting problem of compacted soil, can effectively break the soil, lift the soil, improve the collection rate of polluted soil, increase the processing efficiency, effectively go deep into the plough layer soil, adopt a primary screening mechanism 2 to preliminarily screen the broken soil and residual film, reduce the workload of the rear end roller mechanism, the materials after the preliminary screening fall to the rear end primary roller mechanism, the large block materials are squeezed and crushed under the shear force provided by the primary hydraulic spring 7 equipped with the primary passive moving roller shaft 6 and enter the secondary roller mechanism for secondary crushing under the inertia of the roller rotation, and finally the broken soil particles fall into the secondary screening mechanism 8, the screen surface of the secondary vibration screen 22 mainly transports the soil film mixed mixture after the roller is squeezed and crushed to the rear, and the double-shaking structure is adopted to greatly increase the upper and lower vibration amplitude and frequency of the screen surface of the secondary vibration screen 22, and at the same time, the long screening distance is adopted to greatly increase the process of soil film separation and the residual film recovery efficiency. Finally, the rear end is connected to the film collection box 3 to recover the residual film and stubble.

[0065] Finally: The above-mentioned tillage layer roller-type membrane soil separation device is only an embodiment of the present invention and is not used to limit the present invention. Although the present invention is described in detail with reference to the above-mentioned embodiments, it is still possible for technicians in this field to improve the technical solutions recorded in the above-mentioned embodiments, or replace the working principles of some of the structural features. Without departing from the concept of the present invention, all other implementation methods that ordinary technicians in this field can think of without creative work, and other equivalent replacements and simple improvements to the technical solutions of the present invention, are within the protection scope of the present invention.

[0066] It should be understood that although this specification is described according to various embodiments, not every embodiment contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

[0067] The series of detailed descriptions listed above are only specific descriptions of feasible embodiments of the present invention. They are not intended to limit the protection scope of the present invention. All equivalent embodiments or changes that do not deviate from the technical spirit of the present invention should be included in the protection scope of the present invention.

Claims

1. A tillage layer double-roller film-soil separation device, characterized in that: It comprises a soil lifting mechanism (1), a primary screening mechanism (2), a primary roller mechanism, a secondary roller mechanism, a secondary screening mechanism (8) and a frame (10); The soil-lifting mechanism (1), the primary screening mechanism (2), the primary roller mechanism, the secondary roller mechanism, and the secondary screening mechanism (8) are all mounted on a frame (10); the soil-lifting mechanism (1) is arranged at the front end of the primary screening mechanism (2); a primary roller mechanism is arranged below the rear end of the primary screening mechanism (2); a secondary roller mechanism is arranged below the primary roller mechanism; a secondary screening mechanism (8) is arranged below the secondary roller mechanism; a shaking mechanism is arranged on the secondary screening mechanism (8); the shaking mechanism is used to drive the secondary screening mechanism (8) to shake.

2. The tillage layer double-roller film-soil separation device according to claim 1 is characterized in that: The roller spacing between the active fixed roller shaft and the passive movable roller shaft of the secondary roller mechanism is smaller than that of the primary roller mechanism, and the rotation speed of the active fixed roller shaft of the secondary roller mechanism is greater than that of the primary roller mechanism.

3. The tillage layer double-roller film-soil separation device according to claim 1 is characterized in that: The primary screening mechanism (2) comprises a front conveying screen bar (201), an auxiliary fixed wheel (202) and a driving wheel shaft (203); The front conveying screen bar (201) is installed on the frame (10) via an auxiliary fixed wheel (202), and the driving wheel shaft (203) is connected to the front conveying screen bar (201), driving the front conveying screen bar (201) to convey materials to fall into the primary roller mechanism.

4. The tillage layer double-roller film-soil separation device according to claim 1 is characterized in that: The first-stage roller mechanism comprises a first-stage active fixed roller shaft (5), a first-stage passive movable roller shaft (6) and a first-stage hydraulic spring (7); The first-level active fixed roller shaft (5) and the first-level passive movable roller shaft (6) are arranged opposite to each other with a first roller spacing in between. The first-level passive movable roller shaft (6) is mounted on a movable bearing seat (17). One end of the first-level hydraulic spring (7) is connected to the movable bearing seat (17) and the other end is connected to the frame (10). The movable bearing seat (17) is slidably connected to a sealing slide rail (16) on the frame (10). The first-level active fixed roller shaft (5) is connected to a driving mechanism.

5. The tillage layer double-roller film-soil separation device according to claim 4 is characterized in that: The two-stage roller mechanism comprises a two-stage active fixed roller shaft (12), a two-stage passive movable roller shaft (13) and a two-stage hydraulic spring (14); The secondary active fixed roller shaft (12) and the secondary passive movable roller shaft (13) are arranged opposite to each other, and a second roller spacing is left in between. The secondary passive movable roller shaft (13) is installed on a movable bearing seat (17). One end of the secondary hydraulic spring (14) is connected to the movable bearing seat (17), and the other end is connected to the frame (10). The movable bearing seat (17) is slidably connected to a sealing slide rail (16) on the frame (10). The secondary active fixed roller shaft (12) is connected to a driving mechanism. The second roller spacing is smaller than the first roller spacing, and the rotation speed of the secondary active fixed roller shaft (12) is greater than that of the primary active fixed roller shaft (5).

6. The tillage layer double-roller film-soil separation device according to claim 1 is characterized in that: The circumferential surfaces of the active fixed roller shafts of the primary roller mechanism and the secondary roller mechanism are provided with a plurality of roller surface racks (18).

7. The tillage layer double-roller film-soil separation device according to claim 1 is characterized in that: The shaking mechanism of the secondary screening mechanism (8) comprises a shaking shaft driving tooth (801), a bearing (802), a square bearing seat (803), a shaking shaft (804), a shaking cam plate (805) and a rotating wheel (806); The shaking shaft driving gear (801) is connected to the shaking shaft (804); bearings (802) are respectively provided at both ends of the shaking shaft (804); the bearings (802) are mounted on the frame (10) through square bearing seats (803); a plurality of shaking cam discs (805) are provided on the shaking shaft (804); a rotating wheel (806) is provided on the shaking cam disc (805); and the rotating wheel (806) contacts the screen of the secondary screening mechanism (8).

8. The tillage layer double-roller film-soil separation device according to claim 1 is characterized in that: It also comprises a retaining plate (9); the retaining plate (9) is installed behind the primary screening mechanism (2) and is located above and behind the primary roller mechanism.

9. The tillage layer double-roller film-soil separation device according to claim 1 is characterized in that: It also comprises a soil-moving rotary knife (11); the soil-moving rotary knife (11) is mounted on the frame (10) and is located above and in front of the soil-moving mechanism (1) and is used to move soil blocks toward the primary screening mechanism (2).

10. A residual film recycling machine, characterized in that: It comprises the tillage layer double-roller membrane-soil separation device as described in any one of claims 1-9.

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