Land reclamation and restoration device and method

Abstract

The present invention relates to the technical field of land reclamation and restoration, and specifically proposes a land reclamation and restoration device and method, comprising: two fixed frames, a shovel guide cover, a primary screening mechanism, and a secondary screening mechanism. The land reclamation and restoration device designed by the present invention, through the cooperation of the shovel guide cover, the primary screening mechanism, and the secondary screening mechanism, not only realizes the function of multi-stage removal of stones of different sizes during land plowing, but also collects the stones screened out at each stage to prevent the screened stones from accumulating at the bottom of the arc-shaped screening barrel and the screen cylinder, affecting the effect of screening the stones in the soil. At the same time, the cooperation of the shovel guide cover and the primary screening mechanism can also increase the depth of soil reclamation and restoration, and further crush the soil. While refining the soil, it also further separates the soil and stones, thereby improving the effect of screening the stones in the soil.

Description

Technical Field

[0001] The present invention relates to the technical field of land reclamation and restoration, and specifically proposes a land reclamation and restoration device and method. Background Art

[0002] Land consolidation refers to all technical means used for land transformation within a certain area. It falls under the scope of land resource management in national land planning. Repairing damaged land areas through land consolidation is an important measure to address global land degradation, ensure ecological security and sustainable development.

[0003] At present, for damaged and polluted land, when repairing the land, it is usually necessary to turn the soil first to break and loosen the soil blocks, and then use the existing roller-type grid screening cylinder to roll on the soil to squeeze the stones in the soil into the screening cylinder, thereby screening out the stones in the soil and achieving the effect of repairing the soil, preventing the stones and large-particle bricks in the soil from affecting the replanting of the soil.

[0004] However, when the existing equipment is used to improve and repair the land, it can only screen out stones of a certain size. It is difficult to effectively screen out some larger stones. In addition, in the process of screening out the stones in the soil, the stones accumulate at the bottom of the screening cylinder under the action of their own gravity, which affects the entry of the stones into the screening cylinder and the screening effect of the screening cylinder on the stones. Therefore, the land improvement and repair device has a need to improve its effect in screening out the stones in the soil. Summary of the Invention

[0005] In view of the above problems, an embodiment of the present invention provides a land reclamation and restoration device and method to solve the technical problems in the related art.

[0006] In order to achieve the above-mentioned purpose, an embodiment of the present invention provides the following technical solutions: a land reclamation and repair device, comprising: two fixed frames, the two fixed frames are installed on an existing agricultural vehicle, a soil turning mechanism is installed between the fixed frames and the agricultural vehicle, the soil turning mechanism is an existing mechanism for turning over the land, a soil shoveling material guide cover, a first-level screening mechanism and a second-level screening mechanism are installed in sequence between the two fixed frames, and a synchronous discharging mechanism is also installed on the two fixed frames, the first-level screening mechanism includes an arc-shaped screening barrel, a material collection part is provided in the arc-shaped screening barrel, one side opening of the soil shoveling material guide cover is connected to the opening of the arc-shaped screening barrel, the lower side wall of the soil shoveling material guide cover is inclined, and the lower end of the opening of the arc-shaped screening barrel is located above the lower side wall of the soil shoveling material guide cover.

[0007] In one possible implementation, the secondary screening mechanism includes two supporting cylinders, which are fixedly connected to corresponding fixed frames. The outer walls of the two supporting cylinders are rotated together to be covered with a screen cylinder, and the mesh holes on the side walls of the screen cylinder are diamond-shaped. A second aggregate part located inside the screen cylinder is provided between the two fixed frames.

[0008] In one possible implementation, when it is necessary to discharge the stones in aggregate part one and aggregate part two, the large and small stones screened out in aggregate part one and aggregate part two are discharged and collected at the same time through a synchronous discharging mechanism, which greatly improves the convenience of stone discharge.

[0009] In one possible implementation, the aggregate part includes a collecting barrel that is fixedly connected between two fixed frames and located in an arc-shaped screening barrel. The top of the collecting barrel is open, and evenly distributed sieve holes are provided on the collecting barrel. A breaking and separating assembly is installed between the two fixed frames to break up and separate the gravel and soil entering the arc-shaped screening barrel and transport them to the collecting barrel.

[0010] In one possible implementation, the material scattering and separating assembly includes two rotating rings mounted on a collecting bucket, the opposite surfaces of which are rotatably connected to each other. Connecting plates evenly arranged along the circumference of the rotating ring are installed between the two rotating rings. Scraping plates and scattering pieces are respectively installed on two adjacent connecting plates. Screening holes 2 are provided on the scraping pieces. The rotating rings are connected to each other through transmission pieces. When the rotating ring drives the scattering pieces to rotate in a circle, the scattering pieces rotate along their own circumference to scatter and separate the stones and soil.

[0011] In one possible implementation, the breaking parts include arc-shaped strips installed on the inner wall of the arc-shaped screening barrel and evenly distributed along its axial direction, the side walls of the arc-shaped strips are installed with evenly arranged cards, and a rotating crushing frame evenly arranged along an axial direction of the collecting barrel is rotatably installed on the connecting plate. The fixed sleeve at the end of the rotating crushing frame is provided with a fixing ring that cooperates with the cards on the arc-shaped strip, the side wall of the fixing ring is serrated, and a rectangular groove corresponding to the arc-shaped strip is opened on the side of the scraper plate away from the connecting plate to which it is connected.

[0012] In one possible implementation, the second aggregation part includes a collecting barrel 2 located in a screen cylinder and fixedly connected between two fixed frames. The collecting barrel 2 has the same structure as the collecting barrel 1, and the diameter of the sieve holes on the collecting barrel 2 is smaller than the diameter of the sieve holes on the collecting barrel 1. A material collection component is installed between the two fixed frames to transport the stones entering the screen cylinder to the collecting barrel 2.

[0013] In one possible implementation, the material collecting assembly includes a rotating ring mounted on a second collecting barrel, the opposite surfaces of two fixed frames being rotatably connected. Connecting rods evenly arranged along the circumference of the rotating ring are installed between the two rotating rings. A shift plate is installed on the connecting rod. The end of the shift plate away from the connecting rod contacts the inner wall of the screen cylinder. A screening hole 1 is also provided on the shift plate. The aperture of the screening hole 2 is larger than the aperture of the screening hole 1. The screen cylinder and the rotating ring are connected by a reversing linkage. The screen cylinder and the rotating ring rotate in opposite directions under the drive of the reversing linkage.

[0014] In one possible implementation, the reversing linkage includes a gear 1 fixedly mounted on a rotating ring, a gear ring is mounted on the inner wall of the screen cylinder through a fixing member, and a reversing gear is rotatably mounted on the fixing frame and meshes with both the gear 1 and the gear ring.

[0015] In a possible implementation, the transmission member is composed of a rotating ring and a sprocket chain installed on the rotating ring to transmission-connect the two. When the rotating ring rotates, the sprocket chain drives the rotating ring to rotate.

[0016] In one possible implementation, the synchronous discharging mechanism includes two pull rods, which are respectively slidably connected in collecting barrel 1 and collecting barrel 2, and discharge push plates are installed at the ends of the pull rods. The ends of the two pull rods pass through the corresponding collecting barrel 1 and collecting barrel 2 and are connected through a connecting frame. Collection barrel 1 and collection barrel 2 are provided with discharge ports at one end close to the connecting frame, and the connecting frame can also seal the discharge ports.

[0017] The present invention also provides a land reclamation and restoration method, comprising the following steps: S1, soil turning and crushing: an existing soil turning mechanism turns the land to turn up and crush the soil.

[0018] S2, primary screening: When the agricultural vehicle is moving, the shovel guide cover shovels the soil turned over by the soil turning mechanism, and the soil moves along the inclined side wall of the lower side of the shovel guide cover and enters the arc-shaped screening barrel. After the soil enters the arc-shaped screening barrel, the gathering part breaks up and separates the soil and stones entering the arc-shaped screening barrel and collects the large stones separated and screened.

[0019] S3, secondary screening process: the agricultural vehicle drives the screen drum to move through the fixed frame during the movement. The screen drum rolls during the movement, and rolls the pebbles in the soil so that the pebbles enter the screen drum from the mesh holes on the side wall of the screen drum. The diamond mesh holes on the side wall of the screen drum are deformed during the extrusion process to facilitate the entry of the pebbles into the screen drum. At the same time, the soil screened by the side wall of the arc-shaped screening barrel accumulates in the moving direction of the screen drum. The soil after the first-level screening enters the screen drum for secondary screening. The aggregate part 2 collects the pebbles screened on the secondary screening mechanism.

[0020] S4, discharge processing: When the stones are discharged, pull the connecting frame, and the discharge ports on the collecting bucket 1 and the collecting bucket 2 are opened. The connecting frame drives the two pull rods and the discharge push plate to move. During the movement, the discharge push plate pushes the stones to move toward the discharge port for discharge.

[0021] The above one or more technical solutions in the embodiments of the present invention have at least one of the following beneficial effects: 1. A land reclamation and repair device designed by the present invention, through the cooperation of the shoveling material guide cover, the first-level screening mechanism and the second-level screening mechanism, not only realizes the function of multi-stage removal of stones of different sizes from the land plowing, but also collects the stones screened out at each level to prevent the screened stones from accumulating at the bottom of the arc-shaped screening barrel and the screen cylinder, affecting the screening effect of the stones in the soil. At the same time, the cooperation of the shoveling material guide cover and the first-level screening mechanism can also increase the depth of soil reclamation and repair, and further crush the soil. While refining the soil, it also further separates the soil and stones, thereby improving the effect of screening the stones in the soil.

[0022] 2. In the process of soil remediation and repair, when it is necessary to discharge the stones in the aggregate part 1 and the aggregate part 2, the large and small stones screened out in the aggregate part 1 and the aggregate part 2 are uniformly discharged and collected through the synchronous discharging mechanism, which greatly improves the convenience of stone discharge.

[0023] 3. In the process of land remediation, the present invention shovels up the soil turned over by the soil-turning mechanism through the soil-shoveling guide cover, thereby increasing the thickness of the land remediation and avoiding the shallow thickness of the land remediation by the first-level screening mechanism and the second-level screening mechanism, which affects the quality of the land remediation. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying any creative work.

[0025] Figure 1 It is a first three-dimensional structural schematic diagram of the land reclamation and restoration device of the present invention.

[0026] Figure 2 yes Figure 1 A in the enlarged view.

[0027] Figure 3 It is a second three-dimensional structural schematic diagram of the land reclamation and restoration device of the present invention.

[0028] Figure 4 It is a main sectional view of the present invention.

[0029] Figure 5 It is a side sectional view of the material collecting part and the synchronous discharging mechanism of the present invention.

[0030] Figure 6 yes Figure 5 Enlarged view of point B.

[0031] Figure numerals: 1. fixed frame; 2. primary screening mechanism; 20. arc-shaped screening barrel; 21. aggregate part 1; 210. collecting barrel 1; 220. rotating ring; 221. connecting plate; 222. scraper plate; 223. breaking parts; 230. arc-shaped bar; 231. rotating crushing frame; 232. fixed ring; 3. shovel guide cover; 4. secondary screening mechanism; 40. aggregate part 2; 401. collecting barrel 2; 41. supporting cylinder; 42. screen cylinder; 430. rotating ring; 431. connecting rod; 432. dial plate; 440. gear 1; 441. gear ring; 442. reversing gear; 5. synchronous discharge mechanism; 50. pull rod; 51. discharge push plate; 52. discharge port; 53. connecting frame. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0033] In order to enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] See Figure 1 、 Figure 3 and Figure 4 A land reclamation and repair device comprises: two fixed frames 1, the two fixed frames 1 are installed on an existing agricultural vehicle (such as a tractor, not shown in the figure), a turning mechanism (not shown in the figure) is installed between the fixed frame 1 and the agricultural vehicle, and the turning mechanism is an existing mechanism for turning the land, and a shovel guide cover 3, a primary screening mechanism 2 and a secondary screening mechanism 4 are sequentially installed between the two fixed frames 1, and a synchronous discharging mechanism 5 is also installed on the two fixed frames 1. The primary screening mechanism 2 includes an arc-shaped screening barrel 20, and a collecting part 21 is provided in the arc-shaped screening barrel 20. One side opening of the shovel guide cover 3 is connected to the opening of the arc-shaped screening barrel 20, and the lower side wall of the shovel guide cover 3 is inclined, and the lower end of the opening of the arc-shaped screening barrel 20 is located above the lower side wall of the shovel guide cover 3.

[0035] When the agricultural vehicle drives the turning mechanism to turn the soil, the agricultural vehicle also drives the primary screening mechanism 2 and the secondary screening mechanism 4 to move down and contact the soil through the fixed frame 1. During the movement of the agricultural vehicle, the shoveling guide cover 3 shovels up the soil turned over by the turning mechanism, thereby increasing the thickness of the land reclamation, avoiding the shallow thickness of the land reclamation by the primary screening mechanism 2 and the secondary screening mechanism 4, affecting the quality of land reclamation, and the soil moves along the inclined side wall of the lower side of the shoveling guide cover 3 and enters the arc-shaped screening barrel 20. After the soil enters the arc-shaped screening barrel 20, the aggregate part 21 breaks up and separates the soil and stones entering the arc-shaped screening barrel 20 and collects the large stones separated and screened, thereby performing a primary screening on the stones in the soil. The aggregate part 21 breaks up and refines the soil and stones, so that the secondary screening mechanism 4 can perform a secondary screening and collection on the small stones in the soil.

[0036] See Figure 1 、 Figure 3 and Figure 4 The secondary screening mechanism 4 includes two supporting cylinders 41, which are fixedly connected to the corresponding fixed frames 1. The outer walls of the two supporting cylinders 41 are rotated together to be covered with a screen cylinder 42. The mesh holes on the side walls of the screen cylinder 42 are diamond-shaped. A second aggregate part 40 is provided between the two fixed frames 1 and is located inside the screen cylinder 42.

[0037] During the movement of the agricultural vehicle, the screen drum 42 is driven to move by the fixed frame 1. The screen drum 42 rolls during the movement, thereby rolling the pebbles in the soil, so that the pebbles enter the screen drum 42 from the mesh holes on the side wall of the screen drum 42. The diamond mesh holes on the side wall of the screen drum 42 are deformed during the extrusion process to facilitate the entry of the pebbles into the screen drum 42. At the same time, the soil screened by the side wall of the arc-shaped screening barrel 20 is accumulated in the moving direction of the screen drum 42, so that the soil after the first-level screening enters the screen drum 42 for secondary screening. The aggregate part 2 40 collects the pebbles screened on the secondary screening mechanism 4.

[0038] The soil after turning over undergoes primary screening and secondary screening, which greatly improves the quality of soil remediation. It can also screen and collect the large and small stones screened out during remediation, preventing the screened stones from accumulating in the corresponding screen cylinder 42 and the arc-shaped screening barrel 20, affecting the effect of the screen cylinder 42 and the arc-shaped screening barrel 20 on continuous screening of stones in the soil.

[0039] When the stones in the aggregate part 1 21 and the aggregate part 2 40 need to be discharged, the large and small stones screened out from the aggregate part 1 21 and the aggregate part 2 40 are uniformly discharged and collected through the synchronous discharging mechanism 5, which greatly improves the convenience of stone discharge.

[0040] See Figure 1 、 Figure 4 and Figure 5The aggregate part 21 includes a collecting bucket 210 fixedly connected between two fixing frames 1 and located in the arc-shaped screening barrel 20. The top of the collecting bucket 210 is open, and the collecting bucket 210 is provided with evenly arranged sieve holes. A scattering and material-selecting component is installed between the two fixing frames 1 to scatter and separate the stones and soil entering the arc-shaped screening barrel 20 and transport them to the collecting bucket 210.

[0041] See Figure 1 、 Figure 3 、 Figure 4 and Figure 5 The material scattering and screening assembly includes two fixed frames 1 whose opposite surfaces are rotatably connected and are sleeved on a collecting bucket 210. A connecting plate 221 is installed between the two rotating rings 220 and is evenly arranged along the circumference of the rotating ring 220. A scraper plate 222 and a scattering piece 223 are respectively installed on the two adjacent connecting plates 221, and a screening hole 2 is opened on the scraper plate 222.

[0042] The shoveling guide cover 3 scoops up the soil turned over by the soil turning mechanism, and the soil moves along the inclined side wall of the lower side of the shoveling guide cover 3 and enters the arc-shaped screening barrel 20. In the process of the fixed frame 1 driving the arc-shaped screening barrel 20 to move, the screen cylinder 42 drives the rotating ring 220 to rotate through the transmission parts installed between the collecting part 240 and the rotating ring 220 during the rotation process. The rotating ring 220 drives the connecting plate 221, the scraper plate 222 and the scattering piece 223 to rotate. In the process of the rotation of the rotating ring 220, the scattering piece 223 rotates along the circumferential direction of the scattering piece 223 itself to scatter and separate the stones and soil, and further refine the soil so as to effectively screen out the stones in the soil.

[0043] When the scraper plate 222 rotates, it drives the stones and soil entering the arc-shaped screening barrel 20 to move upward. During the movement of the scraper plate 222, the soil falls from the screening hole 2 on it, and the large stones remain on the scraper plate 222. When the scraper plate 222 is aligned with the opening of the collecting barrel 1 210, the large stones fall into the collecting barrel 1 210 along the scraper plate 222. The collecting barrel 1 210 collects the large stones. At the same time, the soil remaining on the scraper plate 222 is screened and falls downward from the screening hole 2 on it or the screening hole on the collecting barrel 1 210 during the sliding process.

[0044] See Figure 4 、 Figure 5 and Figure 6The breaking piece 223 includes an arc-shaped bar 230 installed on the inner wall of the arc-shaped screening barrel 20 and evenly distributed along its axial direction. The side wall of the arc-shaped bar 230 is installed with evenly arranged cards. A rotating crushing frame 231 evenly arranged along the axial direction of the collecting barrel 210 is rotatably installed on the connecting plate 221. The end of the rotating crushing frame 231 is fixedly sleeved with a fixing ring 232 that cooperates with the card on the arc-shaped bar 230. The side wall of the fixing ring 232 is serrated. The scraper plate 222 is provided with a rectangular groove corresponding to the arc-shaped bar 230 on the side away from the connecting plate 221 connected to it.

[0045] As the rotating ring 220 drives the connecting plate 221 to rotate, when the fixed ring 232 at the end of the rotating crushing frame 231 engages with the card of the arc bar 230, the rotating crushing frame 231 moves and rotates along the side wall of the arc bar 230, and the rotating crushing frame 231 crushes and separates the soil and gravel during the rotation process.

[0046] See Figure 1 and Figure 4 The second collecting part 40 includes a collecting barrel 2 401 located in the screen cylinder 42 and fixedly connected between two fixing frames 1. The collecting barrel 2 401 has the same structure as the collecting barrel 1 210. The diameter of the sieve holes on the collecting barrel 2 401 is smaller than the diameter of the sieve holes on the collecting barrel 1 210. A material collecting component is installed between the two fixing frames 1 to transport the stones entering the screen cylinder 42 to the collecting barrel 2 401.

[0047] See Figure 1 and Figure 4 The material collecting assembly includes two rotating rings 430 sleeved on the collecting barrel 2 401, and the opposite surfaces of the two fixing frames 1 are rotatably connected. A connecting rod 431 uniformly arranged along the circumference of the rotating ring 430 is installed between the two rotating rings 430. A dial plate 432 is installed on the connecting rod 431. The end of the dial plate 432 away from the connecting rod 431 contacts the inner wall of the screen cylinder 42. A screening hole 1 is opened on the dial plate 432. The aperture of the screening hole 2 is larger than the aperture of the screening hole 1. The screen cylinder 42 and the rotating ring 430 are connected by a reversing linkage. The screen cylinder 42 and the rotating ring 430 rotate in opposite directions under the drive of the reversing linkage.

[0048] During the rotation of the screen cylinder 42, the rotating ring 430 is driven to rotate through the reversing linkage. During the rotation, the rotating ring 430 drives the connecting rod 431 and the dial plate 432 to rotate. The dial plate 432 drives the pebbles entering the screen cylinder 42 to rotate upward. When the dial plate 432 is aligned with the top opening of the collecting bucket 2 401, the pebbles on the dial plate 432 enter the collecting bucket 2 401, and the collecting bucket 2 401 collects the pebbles to prevent the screened pebbles from accumulating at the bottom of the inner wall of the corresponding screen cylinder 42, affecting the entry of the pebbles into the screen cylinder 42 and the effect of the screen cylinder 42 on continuously screening the pebbles in the soil.

[0049] It should be noted that, referring to Figure 4 and Figure 5 It can be seen that the two rotating rings 220 are respectively rotatably installed on the opposite surfaces of the two fixed frames 1, and the two rotating rings 430 are also respectively rotatably installed on the opposite surfaces of the two fixed frames 1, and the two rotating rings 220 are connected by a circumferentially arranged connecting plate 221, and the two rotating rings 430 are connected by a circumferentially arranged connecting rod 431, so small stones can fall into the collection bucket 1 210 from the gap between adjacent connecting plates 221, and large stones can fall into the collection bucket 2 401 from the gap between adjacent connecting rods 431.

[0050] See Figure 4 The reversing linkage includes a gear 440 fixedly mounted on the rotating ring 430, a gear ring 441 is installed on the inner wall of the screen drum 42 through a fixing member, and a reversing gear 442 meshing with both the gear 440 and the gear ring 441 is rotatably installed on the fixed frame 1. During the rotation of the screen drum 42, the gear ring 441 is driven to rotate, and the meshing transmission between the gear ring 441 and the reversing gear 442, and the meshing transmission between the reversing gear 442 and the gear 440 are driven to drive the rotating ring 430 to rotate; the transmission member is composed of a rotating ring 220 and a sprocket chain installed on the rotating ring 430 to connect the two, and during the rotation of the rotating ring 430, the rotating ring 220 is driven to rotate through the sprocket chain.

[0051] See Figure 1 、 Figure 2 、 Figure 4 and Figure 5 The synchronous discharging mechanism 5 includes two pull rods 50, which are respectively slidably connected in the collecting barrel 1 210 and the collecting barrel 2 401. The ends of the pull rods 50 are installed with discharging push plates 51. The ends of the two pull rods 50 pass through the corresponding collecting barrel 1 210 and the collecting barrel 2 401 and are connected through a connecting frame 53. The collecting barrel 1 210 and the collecting barrel 2 401 are provided with a discharging port 52 at one end close to the connecting frame 53.

[0052] See Figure 2 The fixed frame 1 is rotatably connected to a rotating rod, and a waist-shaped plate is installed at the end of the rotating rod. A waist-shaped hole is opened on the connecting frame 53. When the connecting frame 53 blocks the discharge port 52, the waist-shaped plate passes through the waist-shaped hole and rotates vertically, thereby locking the connecting frame 53.

[0053] When the stones are discharged, the connecting frame 53 is pulled, and the discharge ports 52 on the collecting bucket 1 210 and the collecting bucket 2 401 are opened. The connecting frame 53 drives the two pull rods 50 and the discharge push plate 51 to move. During the movement, the discharge push plate 51 pushes the stones to move toward the discharge port 52 for discharge.

[0054] See Figures 1-6 The present invention also provides a land reclamation and restoration method, comprising the following steps: S1, soil turning and crushing: the existing soil turning mechanism turns the land, turns up the soil and crushes it.

[0055] S2, primary screening process: When the agricultural vehicle is moving, the soil turned over by the soil-turning mechanism is shoveled up by the soil-shoveling guide cover 3, and the soil moves along the inclined side wall of the lower side of the soil-shoveling guide cover 3 and enters the arc-shaped screening barrel 20. After the soil enters the arc-shaped screening barrel 20, the collecting part 21 breaks up and separates the soil and stones entering the arc-shaped screening barrel 20 and collects the large stones separated and screened.

[0056] S3, secondary screening process: the agricultural vehicle drives the screen drum 42 to move through the fixed frame 1 during movement, and the screen drum 42 rolls during movement, rolling the pebbles in the soil so that the pebbles enter the screen drum 42 from the mesh holes on the side wall of the screen drum 42. The diamond mesh holes on the side wall of the screen drum 42 are deformed during the extrusion process to facilitate the entry of the pebbles into the screen drum 42. At the same time, the soil screened by the side wall of the arc-shaped screening barrel 20 is accumulated in the moving direction of the screen drum 42, so that the soil after the first-level screening enters the screen drum 42 for secondary screening, and the aggregate part 2 40 collects the pebbles screened on the secondary screening mechanism 4.

[0057] S4, discharge processing: When the stones are discharged, pull the connecting frame 53, and the discharge ports 52 on the collecting bucket 1 210 and the collecting bucket 2 401 are opened. The connecting frame 53 drives the two pull rods 50 and the discharge push plate 51 to move. During the movement, the discharge push plate 51 pushes the stones to move toward the discharge port 52 for discharge.

[0058] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "circumferential", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0059] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "connected," "installed," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to mechanical connections or electrical connections; they may refer to direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0060] The embodiments of this specific implementation method are all preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the scope of protection of the present invention.

Claims

1. A land reclamation and restoration device, characterized in that: include: Two mounting brackets; The first-level screening mechanism is arranged between the two fixed frames and includes an arc-shaped screening barrel. The arc-shaped screening barrel is provided with a first collecting part. The first collecting part is used to break up and separate the soil and stones entering the arc-shaped screening barrel and collect the large stones separated and screened. The shovel guide cover is installed between the two fixed frames, and one side opening of the shovel guide cover is connected to the opening of the arc-shaped screening barrel. The lower side wall of the shovel guide cover is inclined, and the lower end of the opening of the arc-shaped screening barrel is located above the lower side wall of the shovel guide cover; The secondary screening mechanism is provided between the two fixed frames and is located on the side of the arc-shaped screening barrel away from the shovel guide cover. It is used to screen out small stones in the soil. The secondary screening mechanism is also provided with a second collecting part, which is used to collect the small stones screened by the secondary screening mechanism. The synchronous discharge mechanism is located between the two fixed frames and is used to uniformly discharge the large and small stones screened in the first and second aggregate sections; The first collecting part includes a collecting bucket that is fixedly connected between two fixing frames and is located in the arc-shaped screening bucket. The top of the collecting bucket is open and has evenly distributed sieve holes. A scattering and separating assembly is installed between the two fixing frames to scatter and separate the stones and soil entering the arc-shaped screening bucket and transport them to the collecting bucket. The second collecting part includes a second collecting bucket fixedly connected between two fixing frames and located inside the screen cylinder; The material scattering and separating assembly includes two rotating rings sleeved on a collecting bucket, the opposite surfaces of which are rotatably connected to each other. A connecting plate evenly arranged along the circumference of the rotating ring is installed between the two rotating rings. A scraper plate and a scattering piece are respectively installed on the two adjacent connecting plates. A second screening hole is opened on the scraper plate. The aperture of the second screening hole is larger than the aperture of the first screening hole. The rotating rings are connected to each other by a transmission piece. When the rotating ring drives the scattering piece to rotate in a circle, the scattering piece rotates along its own circumference to scatter and separate the stones and soil.

2. A land reclamation and restoration device according to claim 1, characterized in that: The secondary screening mechanism includes two supporting cylinders, which are fixedly connected to corresponding fixing frames. The outer walls of the two supporting cylinders rotate together to be sleeved with a screen cylinder. The mesh holes on the side walls of the screen cylinder are diamond-shaped, and the second gathering part is arranged in the screen cylinder.

3. The land reclamation and restoration device according to claim 1, characterized in that: The collection bucket 2 has the same structure as the collection bucket 1. The diameter of the sieve hole on the collection bucket 2 is smaller than that on the collection bucket 1. A material collection component is installed between the two fixed frames to transport the stones entering the screen cylinder to the collection bucket 2.

4. A land reclamation and restoration device according to claim 3, characterized in that: The material collecting assembly includes two rotating rings sleeved on the collecting barrel 2 and the opposite surfaces of the two fixing frames are rotatably connected. Connecting rods evenly arranged along the circumference of the rotating ring are installed between the two rotating rings. A shift plate is installed on the connecting rod. The end of the shift plate away from the connecting rod contacts the inner wall of the screen cylinder. A screening hole 1 is also provided on the shift plate. The screen cylinder and the rotating ring are connected by a reversing linkage. The screen cylinder and the rotating ring rotate in opposite directions under the transmission of the reversing linkage.

5. The land reclamation and restoration device according to claim 3, characterized in that: The synchronous discharging mechanism includes two pull rods, which are respectively slidably connected in collecting bucket 1 and collecting bucket 2. Discharging push plates are installed at the ends of the pull rods. The ends of the two pull rods pass through the corresponding collecting bucket 1 and collecting bucket 2 and are connected through a connecting frame. Discharging ports are opened at one end of collecting bucket 1 and collecting bucket 2 close to the connecting frame.

6. The land reclamation and restoration device according to claim 5, characterized in that: The breaking parts include arc-shaped strips installed on the inner wall of the arc-shaped screening barrel and evenly distributed along its axial direction, the side walls of the arc-shaped strips are installed with evenly arranged cards, a rotating crushing frame evenly arranged along an axial direction of the collecting barrel is rotatably installed on the connecting plate, and a fixed sleeve at the end of the rotating crushing frame is provided with a fixing ring that cooperates with the cards on the arc-shaped strip, and the side wall of the fixing ring is serrated.

7. The land reclamation and restoration device according to claim 4, characterized in that: The reversing linkage comprises a gear 1 fixedly sleeved on the rotating ring, a gear ring is installed on the inner wall of the screen cylinder through a fixing member, and a reversing gear meshing with the gear 1 and the gear ring is rotatably installed on the fixing frame.

8. A land consolidation and restoration method, which is accomplished by using the land consolidation and restoration device according to claim 1, characterized in that: The following steps are involved: S1, soil turning and crushing: the soil is turned over and crushed by using the existing soil turning mechanism; S2, primary screening: As the device moves, the shovel guide cover scoops up the soil, and the soil moves along the inclined sidewall of the lower side of the shovel guide cover and enters the primary screening mechanism. After the soil enters the primary screening mechanism, the collecting part breaks up the soil and stones in the arc-shaped screening barrel and collects the large stones separated by the separation. S3, secondary screening: During the movement of the device, the fixed frame drives the secondary screening mechanism to move. The secondary screening mechanism rolls and presses the small stones in the soil into the secondary screening mechanism. At the same time, the soil screened by the primary screening mechanism accumulates in the moving direction of the secondary screening mechanism. The soil after the primary screening is sent to the secondary screening mechanism for secondary screening. The aggregate section 2 collects the small stones screened by the secondary screening mechanism. S4, discharging process: When the stones are discharged, the synchronous discharging mechanism discharges the large and small stones screened in the aggregate part 1 and the aggregate part 2 in a unified manner.

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