A smart screening machine for excavation and backfilling of earth and rock in the Gobi Desert
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-06-23
- Publication Date
- 2026-08-14
AI Technical Summary
[0003]现阶段传统戈壁专用筛分设备存在明显技术缺陷，设备筛孔多为固定式结构，无法根据现场不同区域的土石比例、粒径差异实时调节筛孔大小，筛分精度无法灵活适配多变工况，极易出现筛分不彻底、物料混级等问题，难以匹配戈壁施工中正铺、反铺等不同土石分层回填工艺需求，设备通用性能差；除此之外，传统设备振动系统多为独立动力驱动，结构冗余、能耗较高，且振动机构与筛网为刚性连接，高频作业过程中易引发筛网形变、松动、破损等问题，设备使用寿命短；为此，本发明提供一种戈壁土石方开挖与回填智能筛分机械
其一：本发明所述的一种戈壁土石方开挖与回填智能筛分机械，土石方所开挖的土石通过进料滑板较高一端进入，通过进料滑板进入装置内侧，通过导向柱进行一定导向，使土石通过分隔条的顶部，中小石块通过固定板与连接条之间落下，通过集成电缸控制推移柱移动，控制移动板在移动孔内侧移动，使固定板靠近支撑夹板，使旋转底轴沿着分隔条底部滚动，使固定板与连接条扩大，使大石可以落下，当推移柱进行移动时，会带动波浪板进行移动，支撑转柱于波浪板的顶部滑动，使振动条及半圆盘上下移动，推动连接条上移下移，产生振动效果，在小范围移动移动板的情况下，可以进行振动筛选，在空隙变大的过程中连接环会伸出，拉动移动轴，通过直槽板限位，使连接转板旋转，移动轴通过直槽板内部滑动，使筛内板与筛外板的内部滑动，使筛外板于安装侧柱的内侧旋转，改变筛外板的朝向，进行分开下料，同时筛外板角度较小，在连接环往复移动时，可以使筛外板和筛内板进行抖动效果，使砂土进行筛选向下，而当达到大孔径下料时，筛外板角度较大，直接滑滚下料；
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Figure CN122558786A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of screening technology, specifically to an intelligent screening machine for Gobi Desert earthwork excavation and backfilling. Background Technology
[0002] The soil and rock materials in the Gobi Desert construction area have complex and unique characteristics. The materials on site are generally mixed with large gravel, small and medium-sized crushed stone, and ultrafine aeolian sand. The particle size range of the materials is extremely wide and the gradation is uneven. At the same time, the materials are hard and wear-resistant, but also loose and prone to clogging. In addition, the Gobi Desert environment is characterized by strong winds and sandstorms, huge temperature differences between day and night, and harsh working conditions, which places extremely high demands on the adaptability, structural strength, and operational stability of the soil and rock screening equipment.
[0003] Current traditional Gobi Desert screening equipment suffers from significant technical defects. The screen openings are mostly fixed, making it impossible to adjust the size in real time according to the soil-rock ratio and particle size differences in different areas. This results in inconsistent screening accuracy, leading to problems such as incomplete screening and material mixing. Furthermore, it is difficult to meet the requirements of different soil-rock layering backfilling processes in Gobi construction, such as forward and reverse paving, and the equipment has poor versatility. In addition, the vibration systems of traditional equipment are mostly independently powered, resulting in redundant structures, high energy consumption, and a rigid connection between the vibration mechanism and the screen. High-frequency operation easily causes screen deformation, loosening, and damage, leading to a short equipment lifespan. Therefore, this invention provides an intelligent screening machine for Gobi soil and rock excavation and backfilling. Summary of the Invention
[0004] The purpose of this invention is to provide an intelligent screening machine for Gobi earthwork excavation and backfilling, so as to solve the problems mentioned in the background art.
[0005] The technical solution of this invention is: an intelligent screening machine for Gobi earthwork excavation and backfilling, comprising two column box plates, a feeding slide plate fixedly connected to the inner side of the two column box plates, two guide columns fixedly connected to adjacent sides of the two column box plates, a first side plate fixedly connected to one side of each column box plate, a second side plate fixedly connected to the other side of each column box plate, a moving hole formed on adjacent sides of the two column box plates, an integrated electric cylinder fixedly connected to one side of the second side plate, a pushing column fixedly connected to the output end of the integrated electric cylinder, a moving plate fixedly connected to the outer side of the pushing column, the moving plate slidably engaging with the inner side of the moving hole, a fixed plate fixedly connected between the two moving plates, and a support clamping plate fixedly connected between the two column box plates, the inner curvature of the support clamping plate being... A vibrating strip is snapped in place, with a semi-circular disk fixedly connected to the top of the vibrating strip. A connecting strip is placed on the top of the supporting clamp, and a partition strip is fixedly connected to the top of the connecting strip. A rotating bottom shaft is rotatably connected to the top of the fixed plate, and the partition strip is located on top of the rotating bottom shaft. Supporting rotating columns are rotatably connected to both ends of the vibrating strip. A connecting ring is fixedly connected to one end of the pushing column, and a corrugated plate is fixedly connected to the outer side of the connecting ring. The corrugated plate is slidably snapped into the inner side of the first side plate and the second side plate. The supporting rotating column is located on top of the corrugated plate. A mounting side column is fixedly connected to the side of the second side plate, and a dust-proof plate is fixedly connected to the top of the mounting side column. An outer screen plate is rotatably connected to the inner side of the mounting side column. A straight groove plate is fixedly connected to one side of the first side plate. The inner side of the straight groove plate is slidably engaged with a movable shaft, and the outer side of the movable shaft is fixedly connected to an inner screen plate. The inner screen plate is slidably engaged with the inner side of the outer screen plate. The outer side of the movable shaft is rotatably connected to a connecting cylinder, and a connecting rotating plate is rotatably connected between the connecting ring and the connecting cylinder. In use: excavated soil and rock enter through the higher end of the feed slide plate and into the inner side of the device. Guide columns provide guidance, causing the soil and rock to pass through the top of the separator strip. Small and medium-sized stones fall between the fixed plate and the connecting strip. An integrated electric cylinder controls the movement of the pushing column, which in turn controls the moving plate to move inside the moving hole, bringing the fixed plate closer to the support clamp. This causes the rotating bottom shaft to roll along the bottom of the separator strip, widening the gap between the fixed plate and the connecting strip, allowing larger stones to fall. When the pushing column... When moving, it will drive the corrugated plate to move, and the supporting rotating column will slide on the top of the corrugated plate, causing the vibrating strip and semi-circular disk to move up and down, pushing the connecting strip up and down, producing a vibration effect. When the moving plate moves within a small range, vibration screening can be performed. As the gap increases, the connecting ring will extend and pull the moving shaft. Through the straight groove plate, the connecting rotating plate will rotate. The moving shaft slides inside the straight groove plate, causing the inner screen plate and the outer screen plate to slide inside, causing the outer screen plate to rotate inside the mounting side column, changing the orientation of the outer screen plate, and separating the material for feeding. At the same time, the angle of the outer screen plate is small. When the connecting ring moves back and forth, it can make the outer screen plate and the inner screen plate shake, causing the sand and soil to be screened downwards. When the large-diameter material is fed, the angle of the outer screen plate is large, and the material is directly slid and rolled out.
[0006] Preferably, a support frame plate is fixedly connected to the side of the first side plate and the side plate that are far apart from each other. A rotating box is fixedly connected to the top of the support frame plate. A gravity shaft is rotatably connected between the rotating boxes. An upper push plate is fixedly connected to the outer side of the gravity shaft and is installed inside the rotating box. A striking plate is fixedly connected to the outer side of the gravity shaft. A crushing hammer is fixedly connected to the outer side of the striking plate. A reciprocating cylinder is fixedly connected to the bottom of the rotating box. A mounting base is fixedly connected to the top of the reciprocating cylinder. Torsion clamps are fixedly connected to both sides of the mounting base. The inner side of the torsion clamps is fixedly connected to... It has a torsion shaft, and a shifting plate is rotatably connected to the outer side of the torsion shaft. A torsion spring is installed between the torsion shaft and the shifting plate. In use: if the soil and rock contain large stones, they will gather at the bottom of the feed slide plate. The reciprocating cylinder moves upward, which will cause the shifting plate to push the upper push plate upward, causing the gravity shaft to rotate and the crushing hammer to rotate. When the shifting plate passes the top of the upper push plate, the crushing hammer will rotate downward by gravity, causing the crushing hammer to strike the stones to crush them. When the reciprocating cylinder returns to its original position, it will pull the shifting plate downward. When it contacts the top of the upper push plate, it will rotate upward. After passing the upper push plate, the shifting plate will be torsiond by the torsion spring to return to its original position.
[0007] This invention provides an intelligent screening machine for Gobi desert earthwork excavation and backfilling, which has the following improvements and advantages compared with the prior art: Firstly, the intelligent screening machine for Gobi earthwork excavation and backfilling described in this invention involves excavated soil and rock entering through the higher end of the feeding slide. The soil and rock are guided by guide columns, passing over the top of the separator bars. Smaller stones fall between the fixed plate and the connecting strip. An integrated electric cylinder controls the movement of the pushing column, which in turn moves the moving plate within the moving hole, bringing the fixed plate closer to the support clamp. This causes the rotating bottom shaft to roll along the bottom of the separator bars, widening the gap between the fixed plate and the connecting strip, allowing larger stones to fall. As the pushing column moves, it drives the corrugated plate to move, and the supporting rotating column slides on top of the corrugated plate, causing the vibrating strip... The semi-circular disc moves up and down, pushing the connecting strip up and down to produce a vibration effect. When the moving plate moves within a small range, vibration screening can be performed. As the gap increases, the connecting ring extends and pulls the moving shaft. Through the straight groove plate, the connecting plate rotates. The moving shaft slides inside the straight groove plate, causing the inner and outer screen plates to slide inside each other. This causes the outer screen plate to rotate inside the mounting side column, changing its orientation and separating the material. At the same time, the outer screen plate has a smaller angle. When the connecting ring moves back and forth, it can make the outer and inner screen plates shake, causing the sand to be screened downwards. When a large aperture is reached, the outer screen plate has a larger angle, allowing the material to slide and roll directly. Secondly: In the intelligent screening machine for Gobi earthwork excavation and backfilling described in this invention, if the soil and rock contain large stones, they will gather at the bottom of the feeding slide plate. By moving the reciprocating cylinder upward, the shifting plate will push the upper push plate upward, causing the gravity shaft to rotate and the crushing hammer to rotate. When the shifting plate passes the top of the upper push plate, the crushing hammer will rotate downward by gravity, causing the crushing hammer to strike the stones for crushing. When the reciprocating cylinder returns to its original position, it will pull the shifting plate downward. When it contacts the top of the upper push plate, it will rotate upward. After passing the upper push plate, the shifting plate will be reset by the torsion spring. In summary, the intelligent screening machine for Gobi earthwork excavation and backfilling described in this invention effectively solves the technical pain points of traditional Gobi screening equipment, such as fixed screen holes and redundant vibration systems, by integrating dynamic adjustment of screen holes and linkage vibration screening. The screen hole size can be adjusted in real time according to working conditions to adapt to the screening needs of materials with different particle sizes. The linkage design between the vibration system and the screening mechanism reduces energy consumption and screen wear. The overall structure is compact and highly stable, significantly improving the efficiency and quality of Gobi earthwork excavation and backfilling operations, and has high practical value and promising prospects for promotion. Attached Figure Description
[0008] The present invention will be further explained below with reference to the accompanying drawings and embodiments: Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the column box plate structure of the present invention; Figure 3 This is a schematic diagram of the feed slide structure of the present invention; Figure 4 This is a schematic diagram of the separator strip structure of the present invention; Figure 5 This is a schematic diagram of the outer screen plate structure of the present invention; Figure 6 This is a schematic diagram of the crusher structure of the present invention; Figure 7 This is a schematic diagram of the reciprocating cylinder structure of the present invention.
[0009] Explanation of reference numerals in the attached figures: 1. Column box plate; 2. Feed slide plate; 3. Reciprocating cylinder; 4. First side plate; 5. Second side plate; 6. Integrated electric cylinder; 7. Rotary box; 8. Push plate; 9. Guide column; 10. Mounting side column; 11. Fixed plate; 12. Moving plate; 13. Rotating bottom shaft; 14. Connecting strip; 15. Separating strip; 16. Vibrating strip; 17. Semi-circular disc; 18. Support rotating column; 19. Support clamping plate; 20. Pushing column; 21. Connecting ring; 22. Straight groove plate; 23. Connecting rotating plate; 24. Torsion shaft; 25. Torsion clamping block; 26. Screen outer plate; 27. Screen inner plate; 28. Moving shaft; 29. Connecting cylinder; 30. Corrugated plate; 31. Dustproof plate; 32. Support frame plate; 33. Torsion spring; 34. Gravity rotating shaft; 35. Upper push plate; 36. Striking rotating plate; 37. Crushing hammer; 38. Mounting base. Detailed Implementation
[0010] The present invention will now be described in detail, and the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0011] This invention provides an improved intelligent screening machine for Gobi desert earthwork excavation and backfilling. The technical solution of this invention is as follows: like Figures 1-7As shown, an intelligent screening machine for Gobi earthwork excavation and backfilling includes two column box plates 1. A feeding slide plate 2 is fixedly connected to the inner side of each column box plate 1. Two guide columns 9 are fixedly connected to adjacent sides of each column box plate 1. A first side plate 4 is fixedly connected to one side of each column box plate 1, and a second side plate 5 is fixedly connected to the other side. A moving hole is formed on adjacent sides of each column box plate 1. An integrated electric cylinder 6 is fixedly connected to one side of the second side plate 5. A pushing column 20 is fixedly connected to the output end of the integrated electric cylinder 6. A moving plate 12 is fixedly connected to the outer side of the pushing column 20. The moving plate 12 is slidably engaged with the inner side of the moving hole. A fixed plate 11 is fixedly connected between the two moving plates 12. A support clamping plate 19 is fixedly connected between the two column box plates 1. A vibrating strip 16 is arc-shaped and engaged on the inner side of the support clamping plate 19. A semi-circular disk 17 is fixedly connected to the top of the vibrating strip 16. A connecting strip 14 is placed on the top of the support clamping plate 19, and a separating strip 15 is fixedly connected to the top of the connecting strip 14. A rotating base shaft 13 is rotatably connected to the top of the fixed plate 11. A separator strip 15 is located on top of the rotating base shaft 13. Supporting rotating columns 18 are rotatably connected to both ends of the vibrating strip 16. A connecting ring 21 is fixedly connected to one end of the pushing column 20. A wave plate 30 is fixedly connected to the outer side of the connecting ring 21. The wave plate 30 is slidably engaged with the inner sides of the first side plate 4 and the second side plate 5. The supporting rotating column 18 is located on top of the wave plate 30. A mounting side column 10 is fixedly connected to the side of the second side plate 5. A dustproof plate 31 is fixedly connected to the top of the side column 10. An outer screen plate 26 is rotatably connected to the inner side of the side column 10. A straight groove plate 22 is fixedly connected to one side of the first side plate 4. A moving shaft 28 is slidably engaged with the inner side of the straight groove plate 22. An inner screen plate 27 is fixedly connected to the outer side of the moving shaft 28. The inner screen plate 27 is slidably engaged with the inner side of the outer screen plate 26. A connecting cylinder 29 is rotatably connected to the outer side of the moving shaft 28. A connecting rotating plate 23 is rotatably connected between the connecting ring 21 and the connecting cylinder 29.In use: The excavated soil and rock enter through the higher end of the feed slide plate 2, and then enter the inner side of the device. Guided by the guide column 9, the soil and rock pass over the top of the separator strip 15. Small and medium-sized stones fall between the fixed plate 11 and the connecting strip 14. The integrated electric cylinder 6 controls the movement of the push column 20, which in turn controls the movement of the moving plate 12 within the moving hole, bringing the fixed plate 11 closer to the support clamp 19. This causes the rotating bottom shaft 13 to roll along the bottom of the separator strip 15, widening the gap between the fixed plate 11 and the connecting strip 14, allowing larger stones to fall. When the push column 20 moves, it drives the corrugated plate 30 to move. The support rotating column 18 slides on the top of the corrugated plate 30, causing the vibrating strip 16 and the semi-circular disc 17 to move up and down, pushing... The connecting strip 14 moves up and down, generating a vibration effect. With small-range movement of the moving plate 12, vibration screening can be performed. As the gap widens, the connecting ring 21 extends, pulling the moving shaft 28. Limiting this movement through the straight groove plate 22, the connecting rotating plate 23 rotates. The moving shaft 28 slides inside the straight groove plate 22, causing the inner screen plate 27 and outer screen plate 26 to slide internally, allowing the outer screen plate 26 to rotate inside the mounting side column 10, changing its orientation for separate material feeding. Simultaneously, the outer screen plate 26 has a smaller angle, and as the connecting ring 21 reciprocates, it creates a shaking effect between the outer screen plate 26 and the inner screen plate 27, causing the sand to be screened downwards. When large-diameter material is fed, the outer screen plate 26 has a larger angle, allowing direct sliding and rolling of the material.
[0012] Furthermore, a support frame plate 32 is fixedly connected to the side of the first side plate 4 and the second side plate 5 that are far apart from each other. A rotating box 7 is fixedly connected to the top of the support frame plate 32. A gravity shaft 34 is rotatably connected between the rotating boxes 7. An upper push plate 35 is fixedly connected to the outside of the gravity shaft 34 and is installed inside the rotating box 7. A striking plate 36 is fixedly connected to the outside of the gravity shaft 34. A crushing hammer 37 is fixedly connected to the outside of the striking plate 36. A reciprocating cylinder 3 is fixedly connected to the bottom of the rotating box 7. A mounting base 38 is fixedly connected to the top of the reciprocating cylinder 3. Torsion clamps 25 are fixedly connected to both sides of the mounting base 38. A torsion shaft 24 is fixedly connected to the inside of the torsion clamps 25. A shifting plate 8 is rotatably connected to the outer side of the rotating shaft 24, and a torsion spring 33 is installed between the torsion shaft 24 and the shifting plate 8. In use: if the soil and rock contain large stones, they will gather at the bottom of the feed slide plate 2. The reciprocating cylinder 3 moves upward, which will cause the shifting plate 8 to push the upper push plate 35 upward, causing the gravity rotating shaft 34 to rotate, which will cause the crushing hammer 37 to rotate. When the shifting plate 8 passes the top of the upper push plate 35, the crushing hammer 37 will rotate downward by gravity, causing the crushing hammer 37 to strike the stones to crush them. When the reciprocating cylinder 3 resets, it will pull the shifting plate 8 downward. When it contacts the top of the upper push plate 35, it will rotate upward. After passing the upper push plate 35, the torsion spring 33 will twist, causing the shifting plate 8 to reset.
[0013] Working principle: During use: The excavated soil and rock enter through the higher end of the feed slide plate 2, and then enter the inner side of the device. Guided by the guide column 9, the soil and rock pass through the top of the separator bar 15. Smaller stones fall between the fixed plate 11 and the connecting bar 14. The integrated electric cylinder 6 controls the movement of the pushing column 20, which in turn controls the movement of the moving plate 12 within the moving hole, bringing the fixed plate 11 closer to the support clamp 19. This causes the rotating bottom shaft 13 to roll along the bottom of the separator bar 15, allowing the fixed plate 11 to move closer to the support clamp 19. The connecting strip 14 expands to allow large stones to fall. When the pushing column 20 moves, it drives the wave plate 30 to move. The supporting rotating column 18 slides on the top of the wave plate 30, causing the vibrating strip 16 and the semi-circular disk 17 to move up and down, pushing the connecting strip 14 up and down to produce a vibration effect. Vibration screening can be performed when the moving plate 12 is moved within a small range. As the gap increases, the connecting ring 21 extends, pulling the moving shaft 28. The straight groove plate 22 limits the movement, causing the connecting rotating plate 23 to rotate and move. Shaft 28 slides inside the straight groove plate 22, causing the inner screen plate 27 and the outer screen plate 26 to slide internally. This allows the outer screen plate 26 to rotate inside the mounting side column 10, changing its orientation and separating the material for feeding. Simultaneously, the outer screen plate 26 has a smaller angle, which, when the connecting ring 21 reciprocates, creates a shaking effect between the outer screen plate 26 and the inner screen plate 27, causing the sand and soil to be screened downwards. When feeding large-diameter material, the outer screen plate 26 has a larger angle, allowing the material to slide and roll directly. If the soil contains large stones, they will accumulate at the feed. At the bottom of the material slide plate 2, the reciprocating cylinder 3 moves upward, causing the shifting plate 8 to push the upper push plate 35 upward, which in turn causes the gravity shaft 34 to rotate, causing the crushing hammer 37 to rotate. When the shifting plate 8 passes the top of the upper push plate 35, the crushing hammer 37 will rotate downward due to gravity, causing the crushing hammer 37 to strike the stone and crush it. When the reciprocating cylinder 3 resets, it will pull the shifting plate 8 downward. When it contacts the top of the upper push plate 35, it will rotate upward. After passing the upper push plate 35, the torsion spring 33 will twist, causing the shifting plate 8 to reset.
[0014] The foregoing description enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A smart screening machine for Gobi earthwork excavation and backfilling, comprising two column box plates (1), characterized in that: Feed slide plate (2) is fixedly connected to the inner side of the two column box plates (1). Two guide columns (9) are fixedly connected to the adjacent side of the two column box plates (1). A first side plate (4) is fixedly connected to one side of the column box plate (1). A second side plate (5) is fixedly connected to the other side of the column box plate (1). A moving hole is opened on the adjacent side of the two column box plates (1). An integrated electric cylinder (6) is fixedly connected to one side of the second side plate (5). A push column (20) is fixedly connected to the output end of the integrated electric cylinder (6). A moving plate (12) is fixedly connected to the outer side of the push column (20). The moving plate (12) is slidably engaged with the inner side of the moving hole. A fixed plate (11) is fixedly connected between the two moving plates (12).
2. The intelligent screening machine for Gobi earthwork excavation and backfilling according to claim 1, characterized in that: A support clamp (19) is fixedly connected between the two column box plates (1). A vibration strip (16) is clamped on the inner arc of the support clamp (19). A semi-circular disk (17) is fixedly connected to the top of the vibration strip (16). A connecting strip (14) is placed on the top of the support clamp (19). A partition strip (15) is fixedly connected to the top of the connecting strip (14). A rotating bottom shaft (13) is rotatably connected to the top of the fixed plate (11). The partition strip (15) is located on the top of the rotating bottom shaft (13).
3. The intelligent screening machine for Gobi earthwork excavation and backfilling according to claim 2, characterized in that: The vibrating strip (16) is rotatably connected to a support column (18) at both ends. One end of the push column (20) is fixedly connected to a connecting ring (21). A wave plate (30) is fixedly connected to the outside of the connecting ring (21). The wave plate (30) is slidably engaged with the inside of the first side plate (4) and the second side plate (5). The support column (18) is located at the top of the wave plate (30).
4. The intelligent screening machine for Gobi earthwork excavation and backfilling according to claim 3, characterized in that: The second side plate (5) is fixedly connected to a mounting side column (10), and a dustproof plate (31) is fixedly connected to the top of the mounting side column (10). The inner side of the mounting side column (10) is rotatably connected to an outer screen plate (26). The first side plate (4) is fixedly connected to a straight groove plate (22). The inner side of the straight groove plate (22) is slidably engaged with a moving shaft (28). The outer side of the moving shaft (28) is fixedly connected to an inner screen plate (27). The inner screen plate (27) is slidably engaged with the inner side of the outer screen plate (26).
5. The intelligent screening machine for Gobi earthwork excavation and backfilling according to claim 4, characterized in that: A connecting cylinder (29) is rotatably connected to the outside of the moving shaft (28), and a connecting plate (23) is rotatably connected between the connecting ring (21) and the connecting cylinder (29).
6. The intelligent screening machine for Gobi earthwork excavation and backfilling according to claim 5, characterized in that: A support frame plate (32) is fixedly connected to the side of the first side plate (4) and the second side plate (5) that are far apart from each other. A rotating box (7) is fixedly connected to the top of the support frame plate (32). A gravity shaft (34) is rotatably connected between the rotating boxes (7). An upper push plate (35) is fixedly connected to the outside of the gravity shaft (34). The upper push plate (35) is installed inside the rotating box (7). A hammering plate (36) is fixedly connected to the outside of the gravity shaft (34). A crushing hammer (37) is fixedly connected to the outside of the hammering plate (36).
7. The intelligent screening machine for Gobi earthwork excavation and backfilling according to claim 6, characterized in that: The bottom of the rotating box (7) is fixedly connected to a reciprocating cylinder (3), the top of the reciprocating cylinder (3) is fixedly connected to a mounting base (38), the two sides of the mounting base (38) are fixedly connected to torsion clamps (25), the inner side of the torsion clamps (25) is fixedly connected to a torsion shaft (24), the outer side of the torsion shaft (24) is rotatably connected to a push plate (8), and a torsion spring (33) is installed between the torsion shaft (24) and the push plate (8).