Field reclamation device

By designing the soil-turning, screening and crushing mechanisms of the field reclamation device, the problems of stones obstructing sowing and damaging agricultural tools were solved, and efficient separation and automatic cleaning of soil and stones were achieved, thereby improving the reclamation quality and operating efficiency.

CN120642623AInactive Publication Date: 2025-09-16甄洪飞
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Patent Information

Application Number
CN202511133352.9
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-08-13
Publication Date
2025-09-16
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing field reclamation equipment is unable to effectively handle the mixed stones and gravel in fields in mountainous and hilly areas, resulting in uneven sowing, stunted crop growth, damaged farm tools and low harvesting efficiency.

Method used

A field reclamation device is designed, which includes a soil turning mechanism, a screening mechanism and a soil crushing mechanism. The soil and stones are separated by working together. The crushing edges are used to break up the soil lumps and screen them. The stones are collected in the storage mechanism to achieve automatic cleaning.

Benefits of technology

It improves the quality of reclamation, avoids the interference of stones on sowing and crop growth, protects agricultural machinery and equipment, reduces the cost of manual cleaning, and improves work efficiency. It is suitable for plots with more stones and meets the high efficiency and refinement needs of modern agriculture.

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Abstract

The invention relates to the technical field of agricultural machinery, in particular to a field reclamation device which comprises a main body unit, a shell, a driving mechanism arranged on the shell, a soil turning mechanism and a collecting unit, the screening mechanism is arranged on the rear side of the soil turning mechanism and used for screening soil and stones, and the soil crushing mechanism is arranged above the screening mechanism and used for scattering the soil and the stones; through cooperative cooperation of the soil turning mechanism, the screening mechanism and the soil crushing mechanism, when the plow harrow frame is used for completing soil turning, mixed stones and soil can be conveyed to a screening area together, meanwhile, by means of the high-speed crushing effect of the soil crushing mechanism, soil cakes are scattered, and soil attached to the surfaces of the stones is shaken off; and the soil and the stones are separated through the screening structure, so that the finely-crushed soil directly returns to the field, the reclamation operation of the field is completed, the automatic cleaning of the crushed stones is synchronously realized, and the interference of the stones on subsequent seeding, crop growth and agricultural machinery operation is avoided.
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Description

Technical Field

[0001] The present invention relates to the technical field of agricultural machinery, and in particular to a field reclamation device. Background Art

[0002] Field reclamation is a basic link in agricultural production, and its core purpose is to break up soil compaction and loosen the surface layer, creating a suitable soil environment for seed germination and root growth, while clearing weeds, stubble and obstacles in the field to ensure the smooth progress of subsequent sowing, irrigation and other operations. In agricultural production, whether it is the reuse of idle land or the periodic renovation of cultivated land, it is necessary to improve soil permeability and fertility through reclamation operations to lay the foundation for high crop yields. At present, field reclamation mainly relies on tractors to pull plows, harrows and other traditional agricultural tools, or use equipment such as combine tillers. Although these equipment can achieve soil tillage, they can generally only turn over and preliminarily crush the soil, and cannot effectively deal with mixed stones and gravel in the field. In mountainous, hilly areas or areas with coarse soil texture, such as the edge of the Loess Plateau in the northwest and the rocky desertification transition zone in the southwest, fields are difficult to reach. There are often large amounts of stones and gravel of varying sizes mixed in the field. If these stones and gravel remain in the field for a long time, they will have multiple adverse effects on subsequent cultivation. For example, stones may prevent the seeder's furrow opener from entering the soil, resulting in uneven sowing depth or missed sowing. During crop growth, stones will squeeze the root growth space, affecting the root system's absorption of water and nutrients. At the same time, during the field management stage, stones may damage the blades or transmission components of agricultural tools such as cultivators and weeders, increasing equipment maintenance costs. During harvesting, stones mixed with crop straw will reduce harvesting efficiency and even damage harvesting equipment. In view of this, we propose a field reclamation device. Summary of the Invention

[0003] In response to the above-mentioned shortcomings of the existing technology, the present invention provides a field reclamation device that can effectively solve the problem that the existing reclamation equipment can only plow and preliminarily crush the soil, and is inconvenient to effectively handle the mixed stones and gravel in fields in mountainous and hilly areas. These stones and gravel will hinder sowing, affect crop growth, damage agricultural tools and reduce harvesting efficiency.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: The present invention provides a field reclamation device, comprising a main unit, including a shell, a driving mechanism arranged on the shell, and a soil turning mechanism arranged inside the shell; The collecting unit includes a screening mechanism arranged at the rear side of the turning mechanism for screening soil and stones, a soil crushing mechanism arranged above the screening mechanism for breaking up the soil and stones, and a storage mechanism arranged on the side of the screening mechanism away from the turning mechanism. The storage mechanism can be used to collect the screened stones and the secondary screening of soil and stones.

[0005] Furthermore, the soil turning mechanism includes a front plow frame fixedly connected to the inner wall of the shell, and a fixed shaft 1 rotatably connected to the inner wall of the shell is provided above the front plow frame. Multiple groups of arc plates for sending soil and stones into the screening mechanism are fixedly connected to the surface of the fixed shaft 1.

[0006] Furthermore, the screening mechanism includes an active conveying roller rotatably connected to the inner wall of the shell, the surface of the active conveying roller is connected to a driven conveying roller through two sets of conveyor belts, and both ends of the driven conveying roller are rotatably connected to the inner wall of the shell.

[0007] Furthermore, a metal screen for screening soil and stones is fixedly connected to the side of the two groups of conveyor belts close to each other, and multiple groups of strip rods are fixedly connected to the surface of the metal screen, and multiple groups of protrusions are fixedly connected to the side of the strip rods away from the metal screen.

[0008] Furthermore, the soil crushing mechanism includes multiple groups of crushing edges arranged above the metal screen for breaking up soil and stones. One end of the multiple groups of crushing edges is fixedly connected to the fixed shaft 2, and one end of the fixed shaft 2 is rotatably connected to the inner wall of the shell.

[0009] Furthermore, the storage mechanism includes a grille storage box fixedly connected to the rear side of the shell, the feed port of the grille storage box is arranged below the metal screen, and the grille storage box is rotatably connected to the side away from the metal screen with a rear cover.

[0010] Furthermore, the inner wall of the grid storage box is rotatably connected to a fixed shaft three, and the surface of the fixed shaft three is fixedly connected to a turning rod for turning the stones.

[0011] Furthermore, the driving mechanism includes a fixed box fixedly connected to one side of the shell, the inner wall of the fixed box is fixedly connected to the motor, and the motor is fixedly connected to the synchronous pulley assembly 1 through the output shaft.

[0012] Furthermore, the side of the synchronous pulley assembly 1 away from the motor is transmission-connected to the fixed shaft 3 and one end of the active conveying roller, and the side of the synchronous pulley assembly 1 close to the motor is transmission-connected to the synchronous pulley assembly 2.

[0013] Furthermore, the side of the synchronous pulley assembly 2 close to the synchronous pulley assembly 1 is transmission connected to the synchronous pulley assembly 3, and the side of the synchronous pulley assembly 3 away from the synchronous pulley assembly 2 is transmission connected to the fixed shaft 1 and one end of the fixed shaft 2.

[0014] Compared with the known public technologies, the technical solution provided by the present invention has the following beneficial effects: The present invention provides a soil turning mechanism, a screening mechanism and a soil crushing mechanism for coordinated cooperation. While using the plow frame to complete soil turning, the mixed stones and soil can be transported to the screening area together. At the same time, with the help of the high-speed crushing action of the soil crushing mechanism, the soil lumps are broken up and the mud attached to the surface of the stones is shaken off. The soil and stones are then separated by the screening structure, so that the fine soil is directly returned to the field, and the stones are collected into the storage mechanism. Not only the land reclamation operation is completed, but also the automatic cleaning of the crushed stones is realized simultaneously, which avoids the interference of stones on subsequent sowing, crop growth and agricultural machinery operations, improves the reclamation quality, makes the soil looser and finer, which is beneficial to crop growth, and reduces the cost of subsequent manual cleaning of stones, thereby improving the operation efficiency. It is especially suitable for plots with more stones, protects subsequent agricultural machinery and equipment, reduces the risk of failure caused by stones, and can effectively meet the needs of modern agriculture for efficient and refined farming. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] 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 only some embodiments of the present invention. Those skilled in the art can also derive other drawings based on these drawings without inventive effort.

[0016] Figure 1 This is a schematic diagram of the structure of the present invention from a first perspective; Figure 2 It is a schematic cross-sectional view of the housing and the fixing box of the present invention; Figure 3 It is a schematic structural diagram of the soil turning mechanism and the soil crushing mechanism of the present invention; Figure 4 For the present invention Figure 3 A magnified schematic diagram of the structure at A; Figure 5 It is a schematic structural diagram of the material storage mechanism of the present invention; Figure 6 Schematic diagram of the driving mechanism structure of the present invention.

[0017] The reference numerals in the figure represent: 100, main unit; 101, housing; 102, drive mechanism; 1021, fixed box; 1022, motor; 1023, synchronous pulley assembly 1; 1024, synchronous pulley assembly 2; 1025, synchronous pulley assembly 3; 103, soil turning mechanism; 1031, front plowing frame; 1032, curved plate; 1033, fixed shaft 1; 200, collecting unit; 201, screening mechanism; 2011, metal screen; 2012, conveyor belt; 2013, bar; 2014, bump; 2015, active conveying roller; 2016, driven conveying roller; 202, soil crushing mechanism; 2021, fixed axis two; 2022, crushing edge; 203, storage mechanism; 2031, grille storage box; 2032, rear cover; 2033, flipping rod; 2034, fixed axis three. DETAILED DESCRIPTION

[0018] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts shall fall within the scope of protection of the present invention.

[0019] The present invention will be further described below with reference to the embodiments.

[0020] like Figures 1-6 As shown, a field reclamation device includes a main unit 100, including a shell 101, a driving mechanism 102 arranged on the shell 101, and a soil turning mechanism 103 arranged inside the shell 101. The soil turning mechanism 103 includes a front plowing frame 1031 fixedly connected to the inner wall of the shell 101, and a fixed shaft 1033 rotatably connected to the inner wall of the shell 101 is provided above the front plowing frame 1031. The surface of the fixed shaft 1033 is fixedly connected to multiple groups of arc plates 1032 for feeding soil and stones into the screening mechanism 201; the shell 101 can be used The entire device is supported and fixed, and can be connected to an external agricultural vehicle, such as a common agricultural vehicle such as a tractor, through the housing 101 to drive the entire device to move. At the same time, the housing 101 and the entire device can be tilted through an external driving device, and the front plow frame 1031 can be driven to adjust different angles according to different reclamation needs and field conditions. In the process of the vehicle driving the entire device to move, the power of the vehicle can be used to shovel up the soil in the field through the front plow frame 1031 to achieve field reclamation operations; Specifically, the collecting unit 200 includes a screening mechanism 201 disposed at the rear side of the soil turning mechanism 103 for screening soil and stones. The screening mechanism 201 includes an active conveying roller 2015 rotatably connected to the inner wall of the housing 101. The surface of the active conveying roller 2015 is connected to a driven conveying roller 2016 through two sets of conveyor belts 2012. Both ends of the driven conveying roller 2016 are rotatably connected to the inner wall of the housing 101. The two sets of conveyor belts 2012 are fixed to one side close to each other. A metal screen 2011 for screening soil and stones is fixedly connected to the surface of the metal screen 2011, and multiple groups of bar rods 2013 are fixedly connected to the side of the bar rods 2013 away from the metal screen 2011. Multiple groups of protrusions 2014 are fixedly connected. A driving conveyor roller 2015 and a driven conveyor roller 2016 are connected by a conveyor belt 2012, which can drive the metal screen 2011 to move, thereby transporting the soil and gravel scooped up by the front plow and rake frame 1031. It should be noted that when land reclamation operations are being carried out, after the front plow frame 1031 scoops up the soil and gravel, the multiple sets of curved plates 1032 on the fixed shaft 1033 rotate, and the soil and gravel in the soil can be accurately pushed onto the metal screen 2011. By utilizing the shaking during the movement of the vehicle, the transmission between the various components, and the vibration of the relevant driving equipment, the metal screen 2011 can be vibrated during the process of conveying the soil and gravel, thereby shaking off the soil, so that the shaken soil can leak out from the bottom of the metal screen 2011 and fall back to the ground, and the gravel can be continuously conveyed with the movement of the metal screen 2011. The multiple sets of protrusions 2014 connected to the bar bars 2013 on the metal screen 2011 can prevent the stones from sliding off the metal screen 2011 due to their own gravity after entering the metal screen 2011, thereby improving the transportation stability of the stones and gravel. Furthermore, the soil crushing mechanism 202 includes multiple groups of crushing edges 2022 arranged above the metal screen 2011 for breaking up the soil and stones. One end of the multiple groups of crushing edges 2022 is fixedly connected to the fixed shaft 2021, and one end of the fixed shaft 2021 is rotatably connected to the inner wall of the shell 101. The storage mechanism 203 includes a grid storage box 2031 fixedly connected to the rear side of the shell 101, and the feed port of the grid storage box 2031 is arranged below the metal screen 2011. The grid storage box The side of 2031 away from the metal screen 2011 is rotatably connected to the back cover 2032, and the inner wall of the grille storage box 2031 is rotatably connected to the fixed shaft 3 2034. The surface of the fixed shaft 3 2034 is fixedly connected to the turning rod 2033 for turning the stones. The grille storage box 2031 is composed of a metal square frame and a metal grille plate at the bottom. The grille plate has strip grooves to facilitate the entry of gravel into the grille storage box 2031 and to drain the soil remaining on the surface of the gravel to the ground. It should be noted that after the gravel and soil enter the metal screen 2011, the multiple groups of crushing edges 2022 on the fixed shaft 2021 rotate rapidly, which can break up the soil and gravel, reduce the agglomeration of soil, disperse the soil, and enable it to leak out from under the metal screen 2011 better. The remaining gravel can be continuously transported through the metal screen 2011 into the grille storage box 2031. The gravel entering the grille storage box 2031 can be driven by the fixed shaft 3 2034 to rotate the turning rod 2033, thereby further turning the gravel, so that the soil remaining on the surface of the gravel can leak out from the strip groove below the grille storage box 2031, and the gravel in the grille storage box 2031 can be taken out for transportation and collection by opening the rear cover 2032 on the grille storage box 2031. Furthermore, the driving mechanism 102 includes a fixed box 1021 fixedly connected to one side of the housing 101, the inner wall of the fixed box 1021 is fixedly connected to a motor 1022, the motor 1022 is fixedly connected to a synchronous pulley assembly 1 1023 via an output shaft, the synchronous pulley assembly 1 1023 is connected to a fixed shaft 3 2034 and one end of the active conveying roller 2015 on the side away from the motor 1022, and the synchronous pulley assembly 1 1023 is connected to a synchronous pulley assembly 2 1024 on the side close to the motor 1022. The side of the second component 1024 close to the synchronous pulley component 1 1023 is transmission-connected to the synchronous pulley component 3 1025, and the side of the synchronous pulley component 3 1025 away from the synchronous pulley component 2 1024 is transmission-connected to the fixed shaft 1033 and one end of the fixed shaft 2 2021. The driving mechanism 102 can be used to drive the soil turning mechanism 103, the screening mechanism 201, the soil crushing mechanism 202 and the storage mechanism 203 to move, thereby screening and collecting the gravel and making the soil more fully dispersed and fall back to the ground. It should be noted that the synchronous pulley assembly 1 1023, the synchronous pulley assembly 2 1024 and the synchronous pulley assembly 3 1025 are composed of two sets of synchronous wheels and a set of synchronous belts for transmission, which are used for transmission between various components. The synchronous pulley assembly 1 1023 is composed of a larger driving wheel and a smaller driven wheel for connecting to the fixed shaft 3 2034. The transmission ratio of the corresponding driving wheel and the driven wheel is 3:2. The synchronous pulley assembly 2 1024 includes a larger driving wheel and a smaller driven wheel, which correspond to the driving wheel connected to the active conveying roller 2015 and the transmission of the driven wheel for connecting to the synchronous pulley assembly 3 1025. The ratio is 3:2, and the synchronous pulley assembly 3 1025 includes a driving pulley for connecting to the fixed shaft 2021, and a driven pulley connected to the fixed shaft 1033. The transmission ratios of the corresponding driving pulley and the transmission pulley are 1:1 respectively. Through the cascade transmission design of multiple sets of synchronous pulley assemblies, stable operation between the components can be guaranteed, ensuring that the pushing speed of the curved plate 1032 matches the conveying rhythm of the metal screen 2011, and ensuring the rotation speed of the crushing edge 2022 and the curved plate 1032, which can effectively break up the soil blocks and quickly push the soil and gravel on the front plow rake frame 1031 to the metal screen 2011; Specifically, by starting the motor 1022 in the fixed box 1021, the synchronous pulley assembly 1 1023 can be used to drive the fixed shaft 3 2034 and the synchronous pulley assembly 2 1024 to move, thereby realizing the rotation of the flip rod 2033 in the grid storage box 2031, and the synchronous pulley assembly 2 1024 can be used to drive the active conveying roller 2015 and the synchronous pulley assembly 3 1025 to move. The active conveying roller 2015 cooperates with the conveyor belt 2012 and the driven conveying roller 2016 to drive the metal screen 2011 to move, and transport the gravel. The synchronous pulley assembly 3 1025 can also drive the fixed shaft 1 1033 and the fixed shaft 2 2021 to move, thereby realizing the rotation of the arc plate 1032 and the crushing edge 2022, so that the soil and gravel can quickly enter the metal screen 2011 and quickly break up the soil.

[0021] The working principle of the present invention is as follows: the driving and transmission logic of the power system. The driving mechanism 102 is the power core of the device, and its operation directly determines the coordinated efficiency of each functional mechanism. After the motor 1022 inside the fixed box 1021 is started, the output shaft transmits power to the synchronous pulley assembly 1 1023. The synchronous pulley assembly 1 1023 cooperates with the two sets of synchronous wheels through the synchronous belt, and simultaneously drives the fixed shaft 3 2034 and the active conveying roller 2015 to rotate. At the same time, the synchronous pulley assembly 1 1023 also diverts power to the synchronous pulley assembly 2 1024. The synchronous pulley assembly 2 1024 then drives the synchronous pulley assembly 3 1025 to operate. The synchronous pulley assembly 3 1025 is respectively connected to the fixed shaft 1 1033 and the fixed shaft 2 2021. The cascade transmission design of multiple sets of synchronous pulley assemblies ensures that the movement rhythm of the soil turning mechanism 103, the screening mechanism 201, the soil crushing mechanism 202 and the storage mechanism 203 is consistent, avoiding the problem of material accumulation or incomplete processing due to power transmission delay, and providing stable power support for efficient land reclamation. During the initial reclamation of the field and the material transportation process, the turning mechanism 103 of the main unit 100 is responsible for turning the surface soil of the field and collecting the materials. The shell 101 serves as the supporting frame of the device, and its exterior can be fixedly connected to agricultural vehicles such as tractors. When the vehicle moves, it drives the entire device to move in the field. At this time, the front plow frame 1031 penetrates into the soil surface and shovels up the soil and stones mixed therein with the help of the traction force of the vehicle to complete the initial reclamation. To ensure that the shoveled materials can accurately enter the subsequent processing link, the fixed shaft 1033 rotates continuously under the drive of the synchronous pulley assembly 3 1025. The multiple groups of arc plates 1032 evenly distributed on its surface rotate with the shaft, forming a continuous pushing force, which steadily guides the soil and stones shoveled by the front plow frame 1031 to the metal screen 2011 of the screening mechanism 201, avoiding waste caused by scattered materials and the burden of secondary cleaning; The coordinated crushing and screening of the screening mechanism 201 and the soil crushing mechanism 202 is the key to separating soil from rocks. The active conveying roller 2015 rotates under the drive of the synchronous pulley assembly 1023, and a closed-loop transmission is formed through the two sets of conveyor belts 2012 and the driven conveyor roller 2016. The metal screen 2011 fixed between the two sets of conveyor belts 2012 moves at a uniform speed in the horizontal direction. The multiple groups of strip rods 213 on the surface of the metal screen 2011 are arranged in parallel with each other. The bumps 214 on the strip rods 2013 can effectively prevent rocks from sliding due to gravity or vibration during the conveying process, ensuring that the rocks move stably toward the storage mechanism 203. At the same time, the fixed shaft 2021 of the soil crushing mechanism 202 rotates at a high speed under the drive of the synchronous pulley assembly 3 1025, and the multiple groups of crushing edges 2022 on its surface rotate rapidly accordingly, repeatedly hitting the soil lumps and stones on the metal screen 2011. In this process, the crushing edges 2022 can not only break up the large soil lumps into fine soil, making it easier for them to pass through the mesh of the metal screen 2011 and fall back to the field, but also hit the surface of the stone, shake off the attached soil, reduce the amount of soil carried by the stone, and reduce the burden on subsequent screening. The metal screen 2011 continues to move driven by the conveyor belt 212, and the slight vibration of the entire device due to the movement of the carrier further accelerates the separation of soil and stones, ensuring that qualified fine soil is returned to the field in time, creating good conditions for subsequent sowing. Collection and secondary purification of stones The screened stones eventually fall into the grille storage box 2031 of the storage mechanism 203 with the movement of the metal screen 2011. The grille plate at the bottom of the grille storage box 2031 is provided with a plurality of strip grooves. After the stones enter, the small amount of soil remaining on the surface will flow back to the field through the strip grooves under the action of gravity, thereby realizing secondary recovery of the soil. In order to improve the efficiency of secondary screening, the fixed shaft 3 2034 is continuously rotated under the drive of the synchronous pulley assembly 1 1023, and the flipping rod 2033 on its surface continuously stirs the stones in the grille storage box 2031 when the shaft rotates, so that the stones rub and collide with each other, thereby accelerating the shedding of the residual soil. Compared with the traditional static storage box which only relies on gravity to drop the soil, the active friction makes the crushed stones rub and flip continuously, and the hollow structure of the grille can reduce the residue of soil and minimize the soil loss. When the stones in the grid storage box 2031 accumulate to a certain amount, the operator can open the rear cover 2032 connected to the side of the box to take out the stones and transport them outside the field to avoid the accumulation of stones in the field and affect subsequent farming. Through the integrated design, not only the tedious steps of manually cleaning stones after traditional reclamation are eliminated, but also the flatness of the field can be ensured by immediate backfilling of the soil, laying a good foundation for subsequent sowing, irrigation and other links. Through the integrated design, different from the traditional step-by-step mode of turning the soil first and then manually picking up, the turning of the soil, screening of stones and cleaning of the soil are completed simultaneously. Stones are directly screened out when turning the soil, eliminating the need for manual secondary entry. In addition, the device can be flexibly connected to the agricultural vehicle through the shell 101, which can adapt to the needs of farmland operations of different areas, such as small scattered tea fields in hilly areas, etc. After docking with a walk-behind tractor, it can operate flexibly within a narrow row spacing and quickly complete soil turning and stone screening. When facing some larger fields in the North China Plain, it can be docked with a large tractor and use the crushing edge 2022 plus the screen to improve the soil crushing degree and stone screening rate. Whether it is a small plot or a large-scale cultivated land, it can maintain stable operating efficiency, effectively avoid the obstruction of stone to the growth of crop roots, improve land utilization rate, fully meet the requirements of modern agriculture for efficient, precise and labor-saving farming, and can effectively reduce the labor and time costs of agricultural production.

[0022] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. 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 make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A field reclamation device, characterized in that: include, The main unit (100) comprises a housing (101), a driving mechanism (102) disposed on the housing (101), and a soil turning mechanism (103) disposed inside the housing (101); The collecting unit (200) comprises a screening mechanism (201) arranged at the rear side of the soil turning mechanism (103) for screening soil and stones, a soil crushing mechanism (202) arranged above the screening mechanism (201) for breaking up the soil and stones, and a storage mechanism (203) arranged at a side of the screening mechanism (201) away from the soil turning mechanism (103). The storage mechanism (203) can be used to collect the screened stones and perform secondary screening of the soil and stones.

2. A field reclamation device according to claim 1, characterized in that: The soil turning mechanism (103) comprises a front plowing frame (1031) fixedly connected to the inner wall of the housing (101); a fixed shaft (1033) rotatably connected to the inner wall of the housing (101) is provided above the front plowing frame (1031); and a plurality of groups of arc plates (1032) for feeding soil and stones into the screening mechanism (201) are fixedly connected to the surface of the fixed shaft (1033).

3. A field reclamation device according to claim 2, characterized in that: The screening mechanism (201) comprises an active conveying roller (2015) rotatably connected to the inner wall of the housing (101); the surface of the active conveying roller (2015) is connected to a driven conveying roller (2016) via two sets of conveyor belts (2012); both ends of the driven conveying roller (2016) are rotatably connected to the inner wall of the housing (101).

4. A field reclamation device according to claim 3, characterized in that: A metal screen (2011) for screening soil and stones is fixedly connected to one side of the two conveyor belts (2012) close to each other, a plurality of strip rods (2013) are fixedly connected to the surface of the metal screen (2011), and a plurality of protrusions (2014) are fixedly connected to the side of the strip rods (2013) away from the metal screen (2011).

5. The field reclamation device according to claim 4, characterized in that: The soil crushing mechanism (202) comprises a plurality of groups of crushing edges (2022) arranged above the metal screen (2011) for breaking up soil and rocks. One end of the plurality of groups of crushing edges (2022) is fixedly connected to a second fixed shaft (221), and one end of the second fixed shaft (2021) is rotatably connected to the inner wall of the housing (101).

6. The field reclamation device according to claim 5, characterized in that: The storage mechanism (203) comprises a grid storage box (2031) fixedly connected to the rear side of the housing (101); an inlet of the grid storage box (2031) is arranged below the metal screen (211); and a rear cover (2032) is rotatably connected to the side of the grid storage box (2031) away from the metal screen (2011).

7. The field reclamation device according to claim 6, characterized in that: The inner wall of the grid storage box (2031) is rotatably connected to a fixed shaft three (2034), and the surface of the fixed shaft three (2034) is fixedly connected to a turning rod (2033) for turning stones.

8. The field reclamation device according to claim 7, characterized in that: The driving mechanism (102) comprises a fixed box (1021) fixedly connected to one side of the housing (101), a motor (1022) fixedly connected to the inner wall of the fixed box (1021), and a synchronous pulley assembly (1023) fixedly connected to the motor (1022) via an output shaft.

9. The field reclamation device according to claim 8, characterized in that: The side of the synchronous pulley component 1 (1023) away from the motor (1022) is transmission-connected to the fixed shaft 3 (2034) and one end of the active conveying roller (2015), and the side of the synchronous pulley component 1 (1023) close to the motor (1022) is transmission-connected to the synchronous pulley component 2 (1024).

10. The field reclamation device according to claim 9, characterized in that: The side of the synchronous pulley component 2 (1024) close to the synchronous pulley component 1 (1023) is transmission-connected to the synchronous pulley component 3 (1025), and the side of the synchronous pulley component 3 (1025) away from the synchronous pulley component 2 (1024) is transmission-connected to the fixed shaft 1 (1033) and one end of the fixed shaft 2 (2021).