An automated soil screening machine

Abstract

This application relates to an automated soil screening machine, belonging to the field of soil screening devices. It includes two opposing support plates, both inclined downwards towards the same side. A soil-scraping rotary cutter is connected to the middle of the downward-inclined positions of the two support plates. The rotary cutter is connected to a drive assembly for rotating the cutter. A chain screen assembly is connected between the two support plates to receive the soil scraped by the rotary cutter. A hopper for collecting soil clods or stones transported from the chain screen assembly is also connected to the support plate on the side of the chain screen assembly away from the rotary cutter. Tracks for moving the entire device are connected to opposite sides of the two support plates. This application facilitates soil screening operations.

Description

Technical Field

[0001] This application relates to the field of soil screening devices, and in particular to an automated soil screening machine. Background Technology

[0002] As people's requirements for their living environment gradually increase, more and more garden plants are being planted around people, allowing them to embrace nature within their living areas and thus enhancing their sense of well-being.

[0003] Before planting landscaping plants, the soil needs to be screened to make it easier to plant the plants and to promote the growth of the plant roots.

[0004] Previously, soil screening was generally done manually. The process involved workers manually turning the soil up from the ground using tools, and then using sieves and other screening tools to collect large particles such as stones or hard lumps from the soil, which were then transported to a designated recycling point for collection.

[0005] However, using the above method for soil screening is time-consuming and labor-intensive. In addition to requiring a large workforce, it is also easy to cause delays in the construction period due to the work efficiency of the staff, which will affect subsequent construction. Summary of the Invention

[0006] To facilitate soil screening, this application provides an automated soil screening machine.

[0007] The automated soil screening machine provided in this application adopts the following technical solution:

[0008] An automated soil screening machine includes two opposing support plates, both inclined downwards towards the same side. A soil-scraping rotary cutter is connected to the middle of the two support plates in the downward inclination direction. The soil-scraping rotary cutter is connected to a drive assembly for rotating the cutter. A chain screen assembly for receiving the soil scraped by the cutter is connected between the two support plates. A hopper for receiving soil clods or stones transported on the chain screen assembly is also connected to the support plate on the side away from the cutter. Tracks for moving the entire device are connected to the opposite sides of the two support plates.

[0009] By adopting the above technical solution, when soil screening is required, the device is moved to the upper side of the soil to be screened by the rotation of the track. Then, the drive component drives the soil-digging rotary cutter to rotate, so that the soil-digging rotary cutter can carry stones and soil clods in the soil to the chain screen component. The chain screen component then screens the soil mixed in with the soil clods and stones and carries the remaining soil clods and stones to the collection hopper for collection. This reduces the large amount of labor required for manual soil screening and also improves the efficiency of soil screening, making the soil screening process more convenient.

[0010] Optionally, the two support plates are fixedly connected to a plurality of cutting claws at the lower side of the cutting rotary cutter.

[0011] By adopting the above technical solution and setting multiple cutting claws, the cutting claws can work with the cutting blade to lift the soil while the track rotates and drives the cutting blade to move, thereby reducing the occurrence of damage to the cutting blade during use.

[0012] Optionally, each end of the rotary cutter is rotatably connected to a floating cantilever, and the end of each floating cantilever away from the rotary cutter is rotatably connected to the adjacent support plate. A cantilever tension spring is connected between the position of each floating cantilever near the connected cutter shaft and the adjacent support plate.

[0013] By adopting the above technical solution, and by setting up a floating cantilever and a cantilever tension spring, when the cutting blade encounters a large stone, it can drive the cantilever to rotate. This allows the cutting blade to be lifted upwards, thereby adjusting the gap between the cutting blade and the cutting front claw. This allows the stone to be moved to the chain screen assembly under the action of the cutting blade, thus reducing the rigid contact between the cutting blade and the stone, which could otherwise damage the cutting blade.

[0014] Optionally, the two support plates are rotatably connected to the same lifting screw, the lifting screw is threaded with a lifting sleeve, the lifting sleeve is rotatably connected to a support frame, the support frame is fixedly connected to the track, and the bottom of the support plate on the side away from the cutting blade is rotatably connected to the support frame.

[0015] By adopting the above technical solution, rotating the lifting sleeve can drive the lifting screw to move. The movement of the lifting screw can drive the support plate to rotate around the rotating connection with the support frame, so that the staff can adjust the digging depth of the digging rotary cutter according to the current soil screening needs, thereby realizing the screening operation of soil with different screening depths.

[0016] Optionally, the chain screen assembly includes a plurality of parallel and spaced-apart screen rods, with the ends of two adjacent screen rods connected by a belt. The plurality of screen rods are internally connected to a plurality of drive rubber wheels for moving each screen rod along the side near the cutting blade toward the side near the hopper. The drive rubber wheels are connected to a chain screen motor for rotating the drive rubber wheels.

[0017] By adopting the above technical solution, the chain screen motor can drive multiple drive rubber wheels to rotate. During the rotation of the multiple drive rubber wheels, multiple drive rubber wheels drive multiple screen rods to move. Thus, when the soil-digging rotary cutter moves soil clods and stones to the upper side of multiple screen rods, the multiple screen rods can move themselves to move the soil clods or stones into the collection hopper. Furthermore, since there is a gap between two adjacent screen rods, soil that meets the screening requirements can fall through the gap between two adjacent connecting rods, thereby reducing the loss of soil that meets the screening requirements mixed in with soil clods and stones.

[0018] Optionally, the bottom of the hopper is provided with an opening, and a plurality of connecting rods are provided at the bottom opening of the hopper. The plurality of connecting rods are arranged in parallel and spaced apart, and each connecting rod is arranged to gradually slope downward along the side closer to the support plate to the side away from the support plate.

[0019] By adopting the above technical solution, multiple connecting rods are set to intercept the bottom opening of the hopper, allowing soil that meets the screening requirements mixed in with soil and stones to fall through the gap between two adjacent connecting rods, thereby reducing the loss of soil that meets the screening requirements. Furthermore, due to the inclined setting of the connecting rods, it is more convenient for workers to collect soil and stones inside the hopper.

[0020] Optionally, the hopper has an opening on the side away from the support plate, and the opening is provided with an opening and closing door for sealing the opening.

[0021] By adopting the above technical solution and setting up an opening and closing door, it is convenient for staff to clean the soil and stones inside the collection hopper.

[0022] Optionally, each of the links is rotatably connected to the side wall of the adjacent hopper.

[0023] By adopting the above technical solution, during the process of cleaning soil and stones inside the hopper, multiple connecting rods can be rotated to make the soil and stones inside the hopper move more easily toward the opening and closing door. This reduces the occurrence of soil and stones getting stuck in the gap between two adjacent connecting rods and having difficulty moving toward the opening and closing door, thus affecting the workers' ability to clean soil and stones inside the hopper.

[0024] Optionally, a connecting shaft is fixedly connected to one side of the opening and closing door. The connecting shaft is rotatably connected to the side wall of the hopper. A driving bevel gear is fixedly connected to one end of the connecting shaft. The driving bevel gear meshes with a driven bevel gear. A driving gear is fixedly connected to one side of the driven bevel gear. A connecting gear is fixedly connected to the end of each connecting rod near the driving gear. One of the connecting gears meshes with the driving gear, and two adjacent connecting gears are meshed with each other.

[0025] By adopting the above technical solution, during the opening and closing of the door, the door drives the connecting shaft to rotate. During the rotation of the connecting shaft, the driving bevel gear rotates. During the rotation of the driving bevel gear, the driven bevel gear rotates. During the rotation of the driven bevel gear, the connected driving gear rotates. During the rotation of the driving gear, multiple connecting gears rotate. During the rotation of the multiple connecting gears, multiple connecting rods rotate. This reduces the waste of manpower or material resources caused by the need for manual operation or external driving devices to drive multiple connecting rods.

[0026] Optionally, the bottom wall of the hopper is connected to a protective box that houses the plurality of connecting gears on the lower side.

[0027] By adopting the above technical solution and setting up a protective box, the phenomenon of affecting the rotation and meshing of multiple connecting gears when soil and stones fall into the hopper is reduced.

[0028] In summary, this application includes at least one of the following beneficial technical effects:

[0029] 1. By setting up a track, a rotary cutter, a drive assembly, a cutting claw, a chain screen assembly, and a collection hopper, the soil screening process can be automated, reducing the hassle of manual soil screening by workers;

[0030] 2. By setting up a lifting sleeve and a lifting screw, the rotary cutter can perform screening operations on soil with different screening depth requirements;

[0031] 3. By connecting the opening and closing gate with multiple linkages, and the multiple linkages being able to rotate under the drive of the opening and closing gate, the process of cleaning soil and stones inside the collection hopper is facilitated by the staff. Attached Figure Description

[0032] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application.

[0033] Figure 2 This is a cross-sectional view of the overall structure of Embodiment 1 of this application.

[0034] Figure 3 This is a cross-sectional view of the hopper structure in Embodiment 2 of this application.

[0035] Explanation of reference numerals in the attached drawings: 1. Support plate; 11. Connecting horizontal plate; 12. Lifting screw; 13. Lifting sleeve; 14. Supporting horizontal plate; 2. Soil-cutting rotary cutter; 21. Cutter shaft; 3. Drive assembly; 31. Transmission box; 32. Rotary cutter pulley; 321. Connecting belt; 33. Drive pulley; 34. Connecting plate; 35. Rotary cutter motor; 36. Reducer; 37. Drive shaft; 4. Soil-cutting front claw; 5. Chain screen assembly; 51. Screen rod; 52. Belt; 53. Drive rubber wheel; 54. Rotating shaft 55. Driven rubber wheel; 56. Driven sprocket; 561. Connecting chain; 57. Drive sprocket; 58. Chain screen motor; 6. Collection hopper; 61. Connecting rod; 611. Connecting gear; 62. Opening and closing door; 63. Coupling shaft; 64. Drive bevel gear; 65. Driven bevel gear; 66. Rotating rod; 661. Drive gear; 67. Protective box; 7. Support frame; 71. Battery box; 72. Range extender; 8. Track; 81. Track motor; 9. Floating cantilever; 91. Cantilever tension spring. Detailed Implementation

[0036] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0037] This application discloses an automated soil screening machine.

[0038] Example 1

[0039] Reference Figure 1 and Figure 2 It includes two opposing support plates 1, which are parallel and spaced apart. Each support plate 1 is gradually tilted downward from one side to the other, and the two support plates 1 are tilted in the same direction.

[0040] Two support plates 1 are inclined downwards and connected to a soil-cutting rotary cutter 2. The rotary cutter 2 is connected to a drive assembly 3 for rotating the rotary cutter 2. Multiple cutting claws 4 are fixedly connected between the two support plates 1, located below the rotary cutter 2. These cutting claws 4 are fixedly connected to each other and located in the same plane, inclined downwards towards the rotary cutter 2. A chain screen assembly 5 is connected between the two support plates 1. The chain screen assembly 5 is used to gradually move the soil cut by the rotary cutter 2 upwards along the inclined direction of the support plates 1. A collection hopper 6 is connected to the upward-facing side of the two support plates 1. The collection hopper 6 is used to receive soil clods and stones transported by the chain screen assembly 5.

[0041] Two support plates 1 are connected to the same support frame 7. Tracks 8 are provided on opposite sides of the two support plates 1, and each track 8 is fixedly connected to the adjacent support frame 7. Track motors 81 for driving the track 8 to rotate are connected to the track 8.

[0042] In actual use, the track motor 81 drives the track 8 to rotate, and the track 8 drives the entire device to move. During the movement of the device driven by the track 8, the drive component 3 is activated, and the drive component 3 drives the digging rotary cutter 2 to move, so that the digging rotary cutter 2, together with the cutting front claw 4, can dig the soil from the ground. Then, the digging rotary cutter 2 carries the soil clods and stones to the chain screen component 5. The chain screen component 5 screens the soil clods and stones, so that the soil attached to the soil clods and stones can pass through the chain screen component 5 and fall off. The remaining soil clods and stones fall into the collection hopper 6 under the drive of the chain screen component 5, thus realizing the soil screening process.

[0043] The soil is raised by the rotary cutter 2 and the cutting claw 4, and then further screened by the chain screen assembly 5. The soil clods and stones are collected by the collection hopper 6, which facilitates the soil screening process and speeds up the work efficiency compared with manual screening.

[0044] The cutting blade 2 is penetrated and fixedly connected to a blade shaft 21 in the middle. The drive assembly 3 includes a transmission box 31 located at both ends of the blade shaft 21 and rotatably connected to the blade shaft 21. Each transmission box 31 has a blade pulley 32 fixedly sleeved to the end of the adjacent blade shaft 21 on its lower side. Each transmission box 31 has a drive pulley 33 located on the upper side of the blade pulley 32. The blade pulley 32 and drive pulley 33 located in the same transmission box 31 are connected by multiple connecting belts 321.

[0045] A connecting plate 34 is fixedly connected between the two transmission boxes 31, and the connecting plate 34 is located on the upper side of the rotary cutter 2. A rotary cutter motor 35 is fixedly connected to the middle position of the upper side of the connecting plate 34. The output shaft of the rotary cutter motor 35 is connected to a reducer 36. A drive shaft 37 is driven and connected to each transmission box 31 near the reducer 36. The end of each drive shaft 37 away from the reducer 36 passes through the adjacent transmission box 31 and is rotatably connected to the side wall of the transmission box 31. The end of each drive shaft 37 passing through the adjacent transmission box 31 is fixedly connected to the adjacent drive pulley 33.

[0046] In use, the rotary cutter motor 35 is started, and the rotary cutter motor 35 drives the connected drive shaft 37 to rotate through the reducer 36. During the rotation of the drive shaft 37, the connected drive pulley 33 is driven to rotate. During the rotation of the drive pulley 33, the connected connecting belt 321 is driven to rotate. During the rotation of the connecting belt 321, the rotary cutter pulley 32 is driven to rotate. During the rotation of the two rotary cutter pulleys 32, the same cutter shaft 21 is driven to rotate. During the rotation of the cutter shaft 21, the soil-digging rotary cutter 2 is driven to rotate, so that the soil-digging rotary cutter 2 can dig up the soil.

[0047] Each of the two transmission boxes 31 has a fixed floating cantilever 9 on its opposite side. Each floating cantilever 9 extends from the side closest to the connected transmission box 31 towards the side closest to the collection hopper 6. The side of each floating cantilever 9 away from the connected transmission box 31 is rotatably connected to the adjacent support plate 1, and the rotation points of the two floating cantilever 9 and the adjacent support plate 1 are located on the same horizontal line. A cantilever tension spring 91 is fixedly connected between the lower side of each floating cantilever 9 near the connected transmission box 31 and the side wall of the adjacent support plate 1.

[0048] By setting up floating cantilever 9 and cantilever tension spring 91, when the digging rotary cutter 2 encounters a large stone, the digging rotary cutter 2 can rotate upward around the straight line connecting the rotation point of the two floating cantilever 9 and the connecting support plate 1 as the axis, thereby adjusting the distance between the digging rotary cutter 2 and the cutting front claw 4. This allows the digging rotary cutter 2 to move the current stone to the chain screen assembly 5. After passing the current stone, the two floating cantilever 9, under the action of the connected cantilever tension spring 91, can drive the digging rotary cutter 2 to rotate downward, so that the digging rotary cutter 2 can continue to dig soil after passing the current stone.

[0049] The upper sides of the two support plates 1 are fixedly connected to the same connecting horizontal plate 11, and the upper middle position of the connecting horizontal plate 11 is rotatably connected to the lifting screw 12. The upper side of the lifting screw 12 is threaded with a lifting sleeve 13, and the lower side of the lifting sleeve 13 is rotatably connected to the supporting horizontal plate 14. Both ends of the supporting horizontal plate 14 are rotatably connected to the adjacent support frame 7.

[0050] The lower sides of the ends of the two support plates 1 away from the connected cutting blades 2 are rotatably connected to the adjacent support frame 7.

[0051] By setting up lifting screw 12 and lifting sleeve 13, the operator can drive the lifting screw 12 to move by rotating the lifting sleeve 13. The lifting screw 12 drives the two support plates 1 to rotate around the rotation point of the support frame 7 through the connecting plate 34, thereby realizing the lifting operation of the digging rotary cutter 2 and the cutting claw 4, which facilitates the adjustment of the digging depth of the digging rotary cutter 2 and the cutting claw 4 under different soil conditions.

[0052] The chain screen assembly 5 includes multiple parallel and spaced-apart screen rods 51, which form a ring shape. The ring-shaped screen rods 51 are arranged to gradually slope downwards from the side closest to the cutting blade 2 towards the side furthest from the cutting blade 2. Each end of a screen rod 51 is fixedly connected to the end of an adjacent screen rod 51 with an adhesive tape 52.

[0053] Inside the multiple screen rods 51, on the side away from the cutting blade 2, are two opposing drive rollers 53. Each drive roller 53 has multiple grooves to accommodate the screen rods 51. A rotating shaft 54 ​​is located on the opposite side of the two drive rollers 53, with each end of the shaft fixedly connected to the middle position of the adjacent drive roller 53. Inside the multiple screen rods 51, on the side away from the drive rollers 53, are two opposing driven rollers 55. Each driven roller 55 has multiple grooves to accommodate the screen rods 51, and the opposite sides of the two driven rollers 55 are interconnected.

[0054] One end of the rotating shaft 54 ​​passes through the connected drive rubber wheel 53 and the adjacent support plate 1, and the rotating shaft 54 ​​is rotatably connected to the support plate 1 through which it passes. A driven sprocket 56 is fixedly sleeved on one end of the rotating shaft 54 ​​that passes through the support plate 1. A drive sprocket 57 is provided on the upper side of the driven sprocket 56, and the same connecting chain 561 is sleeved on the driven sprocket 56 and the drive sprocket 57. A chain screen motor 58 for driving the drive sprocket 57 to rotate is fixedly connected to one side of the drive sprocket 57, and the chain screen motor 58 is fixedly connected to the adjacent support plate 1.

[0055] During use, the chain screen motor 58 is turned on, which drives the drive sprocket 57 to rotate. The drive sprocket 57, in turn, drives the connected connecting chain 561 to rotate. The connected chain 561, in turn, drives the connected driven sprocket 56 to rotate. The driven sprocket 56, in turn, drives the rotating shaft 54 ​​to rotate. The rotating shaft 54, in turn, drives the two connected drive rubber wheels 53 to rotate. The two drive rubber wheels 53, in turn, drive multiple screen rods 51 to rotate. Thus, when the rotary cutter 2 carries soil and stones onto the multiple screen rods 51, the upper screen rods 51 can circulate and transport the soil and stones into the collection hopper 6. Furthermore, during the transport of soil and stones, smaller soil particles adhering to the soil and stones can fall through the gaps between the multiple screen rods 51, thereby achieving the transport and screening process of soil and stones.

[0056] The hopper 6 has openings on both its upper and lower sides. Multiple parallel and spaced connecting rods 61 are installed at the lower opening of the hopper 6. These connecting rods 61 prevent soil and stones from falling into the hopper 6. Each connecting rod 61 is inclined downwards from the side closest to the support plate 1 towards the side furthest from the support plate 1, and the inclination angles of the multiple connecting rods 61 are the same. The hopper 6 has an opening on the side furthest from the support plate 1, and an opening door 62 is provided at this opening for sealing.

[0057] As multiple screen rods 51 move soil and stones into the collection hopper 6, small soil particles adhering to the soil and stones can fall off through the gaps between the multiple connecting rods 61. After screening, the soil and stones inside the collection hopper 6 can be cleaned by opening the opening and closing door 62. Because each connecting rod 61 is inclined, the soil and stones on the upper side of the multiple connecting rods 61 can slide towards the opening and closing door 62, thus facilitating the cleaning process of the collection hopper 6.

[0058] Reference Figure 1 The support frame 7 is also connected to a battery box 71 and a range extender 72. The battery box 71 is electrically connected to the range extender 72, and the rotary cutter motor 35, the chain screen motor 58 and the track motor 81 are all electrically connected to the battery box 71 and the range extender 72.

[0059] The implementation principle of Embodiment 1 of this application is as follows: the track motor 81 used to drive the track 8 to rotate is started, which drives the overall device to move through the track 8. At the same time, the rotary cutter motor 35 and the chain screen motor 58 are started. The rotary cutter motor 35 drives the digging rotary cutter 2 to rotate. The digging rotary cutter 2 and the cutting front claw 4 can dig up the soil. The digging rotary cutter 2 can also carry soil clods and stones to the upper side of multiple screen rods 51.

[0060] When the soil and stones move to the upper side of the multiple screen rods 51, the multiple screen rods 51, driven by the chain screen motor 58, can transport the soil and stones into the collection hopper 6, thereby realizing the collection of soil and stones.

[0061] After the soil screening is completed, the opening and closing door 62 is opened to clean the soil and stones inside the collection hopper 6, so that the device can carry out subsequent screening operations.

[0062] Example 2

[0063] Reference Figure 3 The difference between this embodiment and Embodiment 1 is that a vertically arranged connecting shaft 63 is fixedly connected to one side of the opening and closing door 62, and the connecting shaft 63 is rotatably connected to the side wall of the adjacent collection hopper 6. A driving bevel gear 64 is fixedly connected to the lower end of the connecting shaft 63. A driven bevel gear 65 meshes with the side of the driving bevel gear 64 near the support plate 1, and a rotating rod 66 is fixedly connected to the side of the driven bevel gear 65 away from the driving bevel gear 64. The rotating rod 66 is arranged parallel to the connecting rod 61.

[0064] A drive gear 661 is fixedly connected to one end of the rotating rod 66 near the support plate 1. A connecting gear 611 is fixedly connected to one end of each connecting rod 61 near the support plate 1. The drive gear 661 meshes with one of the connecting gears 611, and multiple connecting gears 611 are meshed with each other.

[0065] A protective box 67 is fixedly connected to the bottom wall of the hopper 6. The protective box 67 is used to cover the multiple connecting gears 611 on the lower side.

[0066] When it is necessary to clean the soil and stones inside the collection hopper 6, the opening and closing door 62 is opened. During the opening process, the opening and closing door 62 drives the connecting shaft 63 to rotate. During the rotation of the connecting shaft 63, the driving bevel gear 64 rotates. During the rotation of the driving bevel gear 64, the driven bevel gear 65 rotates. During the rotation of the driven bevel gear 65, the rotating rod 66 and the driving gear 661 rotate. During the rotation of the driving gear 661, multiple connecting gears 611 rotate. During the rotation of the multiple connecting gears 611, multiple connecting rods 61 rotate. This makes it difficult for the soil and stones inside the collection hopper 6 to get stuck in the gap between two adjacent connecting rods 61. While accelerating the movement of the soil and stones inside the collection hopper 6 towards the opening and closing door 62, the rotation of the soil and stones also causes small soil particles attached to the soil and stones to fall out from the gap between two adjacent connecting rods 61, thereby reducing soil loss caused by the soil screening process.

[0067] Furthermore, each link 61 can be fixedly connected with a spirally arranged rotating blade, so that each link 61 can achieve an effect similar to an auger when rotating, thereby accelerating the process of the soil and stones on the link 61 moving towards the opening and closing door 62.

[0068] The implementation principle of Embodiment 2 of this application is as follows: When it is necessary to clean the soil and stones inside the collection hopper 6, the opening and closing door 62 is opened. During the rotation of the opening and closing door 62, multiple connecting rods 61 are driven to rotate, so that the soil and stones on the upper side of the multiple connecting rods 61 can move towards the opening and closing door 62 at a faster speed than the stationary connecting rods 61, thereby realizing the cleaning process of stones and soil inside the collection hopper 6.

[0069] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An automated soil screening machine, characterized in that: The device includes two opposing support plates (1), which are inclined downwards towards the same side. A soil-digging rotary cutter (2) for digging soil is connected at the middle position of the two support plates (1) in the downward inclination direction. The soil-digging rotary cutter (2) is connected to a drive assembly (3) for driving the soil-digging rotary cutter (2) to rotate. A chain screen assembly (5) for receiving the soil dug by the soil-digging rotary cutter (2) is connected in the middle of the two support plates (1). The support plate (1) on the side of the chain screen assembly (5) away from the soil-digging rotary cutter (2) is also connected to a hopper (6) for receiving soil clods or stones transported on the chain screen assembly (5). Tracks (8) for moving the entire device are connected to the opposite sides of the two support plates (1). The two support plates (1) are rotatably connected to the same lifting screw (12), the lifting screw (12) is threaded with a lifting sleeve (13), the lifting sleeve (13) is rotatably connected to a support frame (7), the support frame (7) is fixedly connected to the track (8), and the bottom of the support plate (1) away from the cutting blade (2) is rotatably connected to the support frame (7); the bottom of the hopper (6) is opened, and multiple connecting rods (61) are provided at the bottom opening of the hopper (6). The multiple connecting rods (61) are parallel and spaced apart, and each connecting rod (61) is gradually inclined downward from the side close to the support plate (1) to the side away from the support plate (1); The hopper (6) has an opening on the side away from the support plate (1), and the opening is provided with an opening and closing door (62) for sealing the opening; Each of the connecting rods (61) is rotatably connected to the side wall of the adjacent hopper (6); A connecting shaft (63) is fixedly connected to one side of the opening and closing door (62). The connecting shaft (63) is rotatably connected to the side wall of the hopper (6). A driving bevel gear (64) is fixedly connected to one end of the connecting shaft (63). The driving bevel gear (64) meshes with a driven bevel gear (65). A driving gear (661) is fixedly connected to one side of the driven bevel gear (65). A connecting gear (611) is fixedly connected to one end of each connecting rod (61) near the driving gear (661). One of the connecting gears (611) meshes with the driving gear (661), and two adjacent connecting gears (611) are meshed with each other. The two support plates (1) are fixedly connected to a plurality of cutting claws (4) on the lower side of the cutting blade (2); The chain screen assembly (5) includes a plurality of parallel and spaced screen rods (51), the ends of two adjacent screen rods (51) are connected by a tape (52), and a plurality of drive rubber wheels (53) are connected inside the plurality of screen rods (51) for moving each screen rod (51) along the side near the cutting blade (2) towards the side near the collection hopper (6), and the drive rubber wheels (53) are connected to a chain screen motor (58) for driving the drive rubber wheels (53) to rotate.

2. The automated soil screening machine according to claim 1, characterized in that: Each end of the rotary cutter (2) is rotatably connected to a floating cantilever (9). The end of each floating cantilever (9) away from the rotary cutter (2) is rotatably connected to the adjacent support plate (1). A cantilever tension spring (91) is connected between the position of each floating cantilever (9) near the connected cutter shaft (21) and the adjacent support plate (1).

3. An automated soil screening machine according to claim 1, characterized in that: The bottom wall of the hopper (6) is connected to a protective box (67) that covers the lower side of the multiple connecting gears (611).

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