High-precision ground leveling device with controllable flatness

Abstract

The application discloses a high-precision ground leveling device with controllable flatness, and relates to the technical field of ground construction equipment. The application can adjust the height of the driving frame, and then adjust the height of the leveling frame; can realize multiple height leveling treatment of ground construction materials, can effectively ensure high precision of ground leveling processing, and can further strengthen the leveling treatment of ground construction materials; when the leveling frame is driven to move from left to right, the center of gravity of the leveling frame continuously swings left and right, the leveling roller performs regular vibration treatment on the ground construction materials, the surface of the leveled ground has regular indentations, appropriate treatment methods can be selected according to different requirements, and then the flatness of the ground leveling treatment can be controlled.

Description

Technical Field

[0001] This invention relates to the field of ground construction equipment technology, specifically a high-precision ground leveling device with controllable flatness. Background Technology

[0002] In building construction, ground leveling is a very important task, as it directly determines the flatness and solidity of the ground, and also directly affects the progress of subsequent procedures.

[0003] Patent (CN213358264U) discloses a high-precision underground parking garage floor construction device with controllable flatness. The device includes a main body with threaded screws on both sides inside. One end of each screw extends to the outer side of the top of the main body. A connecting ring is fitted onto the top of each screw, and connecting blocks are fitted onto the outer surface of each screw. Receiving blocks are installed at the ends of the connecting blocks that are far apart from each other. Movable blocks are installed on both sides of the device body at the bottom of the connecting rods. A lead screw is installed at the other end of each movable block, and an adjusting rod is fitted onto the other end of each lead screw. This invention, by incorporating the adjusting rod and lead screw, allows workers to adjust the length between the adjusting rod and lead screw by rotating the adjusting nut. This changes the angle of the connecting ring that contacts the ground, enabling the device to level surfaces with varying slopes.

[0004] The high-precision underground parking garage construction device described in the aforementioned patent documents has a small construction area. When leveling a large area of ​​ground, the entire device needs to be moved repeatedly, resulting in low work efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a high-precision ground leveling device with controllable flatness to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a high-precision ground leveling device with controllable flatness, comprising a drive frame and a leveling frame, wherein the leveling frame is movably disposed at the bottom of the drive frame, and a ball screw is rotatably connected inside the drive frame, wherein a screw nut is fitted on the outer wall of the ball screw, a servo motor is disposed at one end of the outer wall of the drive frame, the output end of the servo motor is fixedly connected to one end of the ball screw, the bottom of the screw nut is movably connected to the top center of the leveling frame through a hinge frame, a connecting frame is disposed at one end of the top of the drive frame, and support feet are vertically disposed at the four corners of the bottom of the drive frame.

[0007] Furthermore, the support foot is provided with a caster wheel at the bottom, and the support foot includes a first support rod and a second support rod. The top of the first support rod is fixedly connected to the bottom of the drive frame, and the bottom of the first support rod is provided with a plug rod. The top of the second support rod is provided with a slot that matches the plug rod. The caster wheel is located at the bottom of the second support rod. A servo electric cylinder is vertically provided on the outer wall of the second support rod, and the output end of the servo electric cylinder is fixedly connected to the outer wall of the first support rod.

[0008] Furthermore, the bottom of the leveling frame is provided with several rotatably connected leveling rollers. The outer walls of the leveling rollers are symmetrically provided with first support shafts at both ends. The first support shafts are rotatably connected to the leveling frame. The inner wall of the leveling frame is provided with a rotatably connected second support shaft above the first support shaft. The outer wall of the first support shaft is fitted with a first gear. The outer wall of the second support shaft is provided with a second gear that meshes with the first gear. The outer wall of the second support shaft is provided with a fan-shaped plate on one side of the second gear. The leveling frame is provided with a movable cavity above the leveling rollers. The top of the inner wall of the movable cavity is provided with a rotatably connected swing frame. The inner wall of the movable cavity is provided with a slidably connected counterweight block on one side.

[0009] Furthermore, the bottom of the inner wall of the leveling frame is provided with a first cavity that matches the leveling roller, the inside of the leveling frame is provided with a second cavity that matches the first gear, the inside of the leveling frame is provided with a third cavity that matches the second gear, and the inside of the leveling frame is provided with a fourth cavity that matches the sector plate.

[0010] Furthermore, the second cavity is connected to the third cavity, the fourth cavity is connected to the movable cavity, the first cavity is isolated from the movable cavity, the second cavity is isolated from the first cavity, and the third cavity is isolated from the movable cavity.

[0011] Furthermore, the swing frame includes a swing rod and a support frame, the swing rod is rotatably connected to the support frame, and a torsion spring is provided between the swing rod and the support frame.

[0012] Furthermore, the outer wall of the counterweight is provided with an arc-shaped plate, the inner wall of the movable cavity is provided with an arc-shaped slide rail that matches the arc-shaped plate, buffer plates are symmetrically provided on both sides of the outer wall of the arc-shaped plate, and several ball bearings that match the arc-shaped slide rail are symmetrically provided at both ends of the arc-shaped plate.

[0013] Furthermore, the bottom of the leveling frame is provided with a scraper frame outside the leveling roller, and scrapers are symmetrically provided on both sides of the bottom of the scraper frame. The bottom of the leveling frame is provided with an installation groove that matches the scraper frame. Limiting blocks are symmetrically provided on both sides of the outer wall of the scraper frame. Limiting grooves that match the limiting blocks are provided on the outer side of the leveling frame and the installation groove.

[0014] Furthermore, the bottom of the leveling frame is symmetrically provided with pusher frames at both ends, and the bottom of the inner side of the pusher frame is provided with a rotatably connected pusher roller, which is flush with the bottom of the leveling roller.

[0015] Furthermore, the hinge frame includes a first connecting frame, a second connecting frame, and a connecting piece. One end of the connecting piece is rotatably connected to the first connecting frame via a third support shaft, and the other end of the connecting piece is rotatably connected to the second connecting frame via a fourth support shaft.

[0016] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0017] 1. This invention, by setting up a drive frame, a leveling frame, support feet, leveling rollers, a first gear, a second gear, a swing frame, and a counterweight, allows for the following operation: The drive frame is moved to the desired ground leveling position, and a servo cylinder is adjusted for extension and retraction. The servo cylinder adjusts the height of the support feet, thereby adjusting the height of the drive frame, and ultimately the leveling frame. Initially, the construction materials are piled up at a high height, so the leveling frame is adjusted to a higher height. During the movement of the leveling frame, the higher parts of the construction materials can be leveled first, and then the height of the leveling frame can be lowered to level and compact the materials again. This allows for leveling of the ground construction materials at multiple heights, effectively ensuring high precision in ground leveling and further enhancing the performance of the ground construction materials. The leveling process involves the counterweight swinging upwards along the arc-shaped slide rail, shifting the center of gravity of the leveling frame to the left. Once the fan-shaped plate moves out of the movable cavity, the swing rod loses its support and resets under the torsional force of the torsion spring. The counterweight then swings downwards along the arc-shaped slide rail, shifting the center of gravity of the leveling frame to the right again. This results in a small, regular vibration of the leveling roller at the bottom of the leveling frame during ground leveling, effectively enhancing the leveling and compaction of the ground construction materials. As the leveling frame moves from left to right, its center of gravity continuously swings left and right, and the leveling roller performs regular vibration on the ground construction materials, resulting in regular indentations on the leveled surface. Appropriate treatment methods can be selected based on different needs, thus achieving controllable flatness in the ground leveling process.

[0018] 2. In this invention, by setting up a scraper frame, scraper blade, pusher frame, and pusher roller, the scraper frame is installed inside the mounting groove at the bottom of the leveling frame, and the limiting block is inserted into the limiting groove, which can effectively realize the quick installation and disassembly of the scraper frame. During the process of the leveling roller contacting and leveling the construction materials on the ground, the scraper blade scrapes the material on both sides of the leveling roller during the rotation of the leveling roller, which can effectively prevent the construction materials from adhering to the surface of the leveling roller, and can effectively ensure the safety and cleanliness of the internal structure of the leveling frame. The operation is convenient and quick. The pusher frame is supported at both ends of the bottom of the leveling frame, and the pusher roller is supported by rolling at the bottom of the pusher frame. During the process of the leveling frame leveling the construction materials, one pusher frame pushes the construction materials at the front end of the leveling frame and the other pusher frame smooths the construction materials at the rear end of the leveling frame, which can effectively enhance the leveling effect of the construction materials on the ground. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0020] Figure 1 This is a front view of the entire invention;

[0021] Figure 2 This is a front sectional view of the entire invention;

[0022] Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle;

[0023] Figure 4 This is the present invention. Figure 2 Enlarged view of point B in the middle;

[0024] Figure 5 This is a front cross-sectional view of the counterweight block of the present invention;

[0025] Figure 6 This is a front sectional view of the sector plate in the leveling frame of the present invention;

[0026] Figure 7 This is the present invention. Figure 6 Enlarged view of point C in the middle;

[0027] Figure 8 This is a front sectional view of the first and second gears in the leveling frame of the present invention;

[0028] Figure 9 This is the present invention. Figure 8 Enlarged view of point D in the middle;

[0029] In the diagram: 1. Drive frame; 2. Leveling frame; 3. Ball screw; 4. Screw nut; 5. Hinge frame; 6. Connecting frame; 7. Support leg; 8. Caster wheel; 9. First support rod; 10. Second support rod; 11. Insert rod; 12. Slot; 13. Servo cylinder; 14. Leveling roller; 15. First support shaft; 16. Second support shaft; 17. First gear; 18. Second gear; 19. Sector plate; 20. Movable cavity; 21. Swing frame; 22. Counterweight; 23. First cavity 24. Second cavity; 25. Third cavity; 26. Fourth cavity; 27. Swing rod; 28. Support frame; 29. ​​Servo motor; 30. Arc plate; 31. Buffer plate; 32. Arc slide rail; 33. Ball bearing; 34. Scraper frame; 35. Scraper; 36. Mounting groove; 37. Limiting block; 38. Limiting groove; 39. Pusher frame; 40. Pusher roller; 41. First connecting frame; 42. Second connecting frame; 43. Connecting piece; 44. Third support shaft; 45. Fourth support shaft. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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.

[0031] like Figures 1-9The high-precision floor leveling device with controllable flatness shown includes a drive frame 1 and a leveling frame 2. The leveling frame 2 is movably mounted at the bottom of the drive frame 1. A ball screw 3 is rotatably connected inside the drive frame 1. A screw nut 4 is fitted onto the outer wall of the ball screw 3. A servo motor 29 is mounted at one end of the outer wall of the drive frame 1, and the output end of the servo motor 29 is fixedly connected to one end of the ball screw 3. The bottom of the screw nut 4 is movably connected to the top center of the leveling frame 2 via a hinge frame 5. A connecting frame 6 is mounted at one end of the top of the drive frame 1. Support feet 7 are vertically mounted at each of the four corners of the bottom of the drive frame 1. Several leveling rollers 14 are rotatably connected at the bottom of the leveling frame 2. First support shafts 15 are symmetrically mounted at both ends of the outer wall of each leveling roller 14 and are rotatably connected to the leveling frame 2. A second support shaft 16 is rotatably connected above the first support shafts 15 on the inner wall of the leveling frame 2. A first gear 17 is sleeved on the outer wall of the second support shaft 16, and a second gear 18 meshing with the first gear 17 is provided on the outer wall of the second support shaft 16. A fan-shaped plate 19 is provided on one side of the second gear 18 on the outer wall of the second support shaft 16. An active cavity 20 is provided inside the leveling frame 2 above the leveling roller 14. A swing frame 21 is vertically connected to the top of the inner wall of the active cavity 20. A counterweight block 22 is slidably connected on one side of the inner wall of the active cavity 20. The swing frame 21 includes a swing rod 27 and a support frame 28. The swing rod 27 is rotatably connected to the support frame 28, and a torsion spring is provided between the swing rod 27 and the support frame 28. An arc plate 30 is provided on the outer wall of the counterweight block 22. An arc slide rail 32 matching the arc plate 30 is provided on the inner wall of the active cavity 20. Buffer plates 31 are symmetrically provided on both sides of the outer wall of the arc plate 30. Several balls 33 matching the arc slide rail 32 are symmetrically provided at both ends of the arc plate 30.

[0032] Furthermore, the bottom of the support foot 7 is provided with a caster wheel 8. The support foot 7 includes a first support rod 9 and a second support rod 10. The top of the first support rod 9 is fixedly connected to the bottom of the drive frame 1, and the bottom of the first support rod 9 is provided with a plug rod 11. The top of the second support rod 10 is provided with a slot 12 that matches the plug rod 11. The caster wheel 8 is located at the bottom of the second support rod 10. A servo cylinder 13 is vertically provided on the outer wall of the second support rod 10. The output end of the servo cylinder 13 is fixedly connected to the outer wall of the first support rod 9. The caster wheel 8 provides motion support at the bottom of the support foot 7, ensuring that the drive frame 1 can move in multiple angles and directions. The first support rod 9 and the second support rod 10 cooperate to support the bottom of the drive frame 1. Adjusting the extension and retraction of the servo cylinder 13 can push the first support rod 9 to move up and down, thereby realizing the lifting and lowering movement of the drive frame 1. When the first support rod 9 moves up and down, the plug rod 11 moves up and down along the slot 12, which can effectively ensure the stability of the movement of the first support rod 9 and the second support rod 10.

[0033] Furthermore, the bottom of the inner wall of the leveling frame 2 is provided with a first cavity 23 that matches the leveling roller 14, providing space for the leveling roller 14 to move and be installed; the inside of the leveling frame 2 is provided with a second cavity 24 that matches the first gear 17, providing space for the first gear 17 to be installed and move; the inside of the leveling frame 2 is provided with a third cavity 25 that matches the second gear 18, providing space for the second gear 18 to be installed and move; the inside of the leveling frame 2 is provided with a fourth cavity 26 that matches the sector plate 19, providing space for the sector plate 19 to be installed.

[0034] Furthermore, the second cavity 24 is connected to the third cavity 25, ensuring that the first gear 17 and the second gear 18 can mesh and transmit power normally; the fourth cavity 26 is connected to the movable cavity 20, ensuring that the sector plate 19 can move into the movable cavity 20 and contact the swing frame 21; the first cavity 23 is isolated from the movable cavity 20 to prevent the leveling roller 14 from contacting the swing frame 21, ensuring the safety of the leveling frame 2; the second cavity 24 is isolated from the first cavity 23 to prevent the first gear 17 from directly contacting the leveling roller 14, ensuring the stability of the movement of the leveling roller 14 and the first gear 17; the third cavity 25 is isolated from the movable cavity 20 to prevent the second gear 18 from entering the movable cavity 20, ensuring the structural strength of the movable cavity 20 and the structural stability of the leveling frame 2.

[0035] Furthermore, the hinge frame 5 includes a first connecting frame 41, a second connecting frame 42, and a connecting piece 43. One end of the connecting piece 43 is rotatably connected to the first connecting frame 41 via a third support shaft 44, and the other end of the connecting piece 43 is rotatably connected to the second connecting frame 42 via a fourth support shaft 45. The first connecting frame 41 and the third support shaft 44 cooperate to achieve a rotatable connection between the connecting piece 43 and the drive frame 1, and the second connecting frame 42 and the fourth support shaft 45 cooperate to achieve a rotatable connection between the connecting piece 43 and the leveling frame 2, ensuring the hinge connection between the drive frame 1 and the leveling frame 2, and ensuring that the leveling frame 2 can swing normally or adjust its angle adaptively.

[0036] The specific implementation method is as follows: In use, by setting up a drive frame 1, a leveling frame 2, support feet 7, a leveling roller 14, a first gear 17, a second gear 18, a swing frame 21, and a counterweight 22, the drive frame 1 is moved to the position where the ground leveling operation needs to be performed. The servo cylinder 13 is adjusted to extend and retract, and the servo cylinder 13 adjusts the height of the support feet 7, thereby adjusting the height of the drive frame 1, and then adjusting the height of the leveling frame 2. In the initial state, the ground construction materials are piled up at a high height, so the height of the leveling frame 2 is adjusted to be high. During the movement of the leveling frame 2, the higher position of the construction materials can be leveled first, and then the height of the leveling frame 2 can be lowered to level and compact the construction materials again. This process can achieve leveling of the ground construction materials at multiple heights, effectively ensuring high precision in ground leveling and further enhancing the leveling of ground construction materials.

[0037] When the leveling frame 2 levels the ground construction materials, the counterweight 22 is located on the left side inside the movable cavity 20. The servo motor 29 is activated, driving the ball screw 3 to rotate. The ball screw 3 drives the screw nut 4 to reciprocate horizontally along the ball screw 3, thereby driving the leveling frame 2 to reciprocate. When the servo motor 29 rotates forward, it drives the ball screw 3 to rotate forward, causing the screw nut 4 to move horizontally from left to right, thus driving the leveling frame 2 to move horizontally from left to right. When the leveling frame 2 moves horizontally from left to right, the leveling roller 14 rotates clockwise along the top of the ground construction materials. The first support shaft... As the leveling roller 14 rotates clockwise, the first gear 17 rotates clockwise along with the first support shaft 15. The first gear 17 meshes with the second gear 18, which rotates counterclockwise. The second support shaft 16 rotates counterclockwise along with the second gear 18, driving the sector plate 19 to rotate counterclockwise. During this counterclockwise rotation, the sector plate 19 intermittently oscillates within the movable cavity 20. Once the sector plate 19 enters the movable cavity 20, it engages with the swing rod 27 of the swing frame 21. Upon contact, the swing arm 27 is swung to the left. During the leftward swing, the swing arm 27 contacts and collides with the counterweight 22, pushing the counterweight 22 upward along the arc-shaped slide rail 32. The arc-shaped plate 30 of the counterweight 22 slides within the arc-shaped slide rail 32, providing a limiting sliding effect. The buffer plate 31 provides buffering during the upward and downward movement of the counterweight 22, effectively preventing equipment damage. The ball bearings 33 provide ball guidance on the outside of the arc-shaped plate 30, effectively enhancing the smoothness and stability of the counterweight 22's movement. When the counterweight 22 swings upward in an arc along the arc-shaped slide rail 32, the overall center of gravity of the leveling frame 2 shifts to the left. When the fan-shaped plate 19 moves from... After the movable cavity 20 moves out of the inner side, the swing rod 27 loses its support and is reset under the torsional support force of the torsion spring. The counterweight 22 swings downward along the arc-shaped slide rail 32 in an arc shape, and the center of gravity of the leveling frame 2 shifts to the right again. This achieves small-amplitude regular vibration of the leveling roller 14 at the bottom of the leveling frame 2 when leveling the ground, which can effectively enhance the leveling and compaction effect of the ground construction materials. When the leveling frame 2 moves from left to right, the center of gravity of the leveling frame 2 swings left and right continuously, and the leveling roller 14 performs regular vibration treatment on the ground construction materials, so that the leveled ground surface has regular indentations.

[0038] When the servo motor 29 reverses, it drives the ball screw 3 to reverse, causing the screw nut 4 to move horizontally from right to left, which in turn drives the leveling frame 2 to move horizontally from right to left. When the leveling frame 2 moves horizontally from right to left, the leveling roller 14 rotates counterclockwise along the top of the ground construction material. The first support shaft 15 rotates counterclockwise along with the leveling roller 14, and the first gear 17 rotates counterclockwise along with the first support shaft 15. The first gear 17 and the second gear 18 mesh, and the second gear 18 rotates clockwise. The second support shaft 16 rotates clockwise along with the second gear 18. The support shaft 16 drives the sector plate 19 to rotate clockwise. During the clockwise rotation, the sector plate 19 intermittently swings along the inside of the movable cavity 20. After the sector plate 19 moves into the inside of the movable cavity 20, it contacts the swing rod 27 of the swing frame 21 and swings the swing rod 27 to the right. During the swing to the right, the swing rod 27 does not contact or collide with the counterweight 22. The swing rod 27 only swings. The leveling roller 14 performs leveling treatment on the top of the ground construction material, which can effectively smooth the surface of the ground construction material. The operation is convenient and quick.

[0039] Depending on the required leveling degree of the ground, the leveling frame 2 can be selected to move from left to right to perform leveling, compaction and indentation of the ground construction materials, or to move from right to left to perform leveling of the ground construction materials. The leveling frame 2 can also be selected to move back and forth in the left and right directions to perform leveling, compaction and indentation of the construction materials while simultaneously leveling the ground construction materials. The appropriate treatment method can be selected according to different needs, thereby achieving controllable leveling of the ground.

[0040] like Figures 1-2 , Figure 6 and Figure 8 The high-precision floor leveling device with controllable flatness shown has a scraper frame 34 at the bottom of the leveling frame 2 outside the leveling roller 14. Scrapers 35 are symmetrically arranged on both sides of the bottom of the scraper frame 34. The bottom of the leveling frame 2 is provided with a mounting groove 36 that matches the scraper frame 34. Limiting blocks 37 are symmetrically arranged on both sides of the outer wall of the scraper frame 34. Limiting grooves 38 that match the limiting blocks 37 are provided on the outer side of the leveling frame 2 and the mounting groove 36. Pusher frames 39 are symmetrically arranged at both ends of the bottom of the leveling frame 2. Pusher rollers 40 are rotatably connected to the bottom of the inner side of the pusher frame 39. The pusher rollers 40 are flush with the bottom of the leveling roller 14.

[0041] The specific implementation method is as follows: In use, by setting up a scraper frame 34, a scraper 35, a pusher frame 39, and a pusher roller 40, the scraper frame 34 is installed inside the mounting groove 36 at the bottom of the leveling frame 2, and the limiting block 37 is inserted into the limiting groove 38, which can effectively realize the quick installation and disassembly of the scraper frame 34; during the process of the leveling roller 14 contacting and leveling the ground construction material, as the leveling roller 14 rotates, the scraper 35 scrapes the material on both sides of the leveling roller 14, which can effectively prevent the construction material from adhering to the surface of the leveling roller 14. The materials effectively ensure the safety and cleanliness of the internal structure of the leveling frame 2, and are convenient and quick to operate. The pusher frame 39 is supported at both ends of the leveling frame 2, and the pusher roller 40 provides rolling support at the bottom of the pusher frame 39. During the leveling process of the leveling frame 2, one pusher frame 39 pushes the construction material at the front end of the leveling frame 2 and the other pusher frame 39 smooths the construction material at the rear end of the leveling frame 2, which can effectively enhance the leveling effect of the construction material on the ground.

[0042] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A high-precision ground leveling device with controllable flatness, comprising a drive frame (1) and a leveling frame (2), characterized in that: The leveling frame (2) is movably mounted at the bottom of the drive frame (1). The drive frame (1) has a rotatably connected ball screw (3) inside. The outer wall of the ball screw (3) is fitted with a screw nut (4). One end of the outer wall of the drive frame (1) is equipped with a servo motor (29). The output end of the servo motor (29) is fixedly connected to one end of the ball screw (3). The bottom of the screw nut (4) is movably connected to the top center of the leveling frame (2) through a hinge frame (5). One end of the top of the drive frame (1) is equipped with a connecting frame (6). The four corners of the bottom of the drive frame (1) are each vertically equipped with a support foot (7). The bottom of the leveling frame (2) is equipped with several rotatably connected leveling rollers (14). The outer walls of the leveling rollers (14) are symmetrically equipped with first supports at both ends. Shaft (15), the first support shaft (15) is rotatably connected to the leveling frame (2), the inner wall of the leveling frame (2) is provided with a second support shaft (16) rotatably connected above the first support shaft (15), the outer wall of the first support shaft (15) is fitted with a first gear (17), the outer wall of the second support shaft (16) is provided with a second gear (18) meshing with the first gear (17), the outer wall of the second support shaft (16) is provided with a fan-shaped plate (19) on one side of the second gear (18), the interior of the leveling frame (2) is provided with an active cavity (20) above the leveling roller (14), the top of the inner wall of the active cavity (20) is provided with a rotatably connected swing frame (21), and one side of the inner wall of the active cavity (20) is provided with a counterweight block (22) slidably connected.

2. The high-precision ground leveling device with controllable flatness according to claim 1, characterized in that: The support foot (7) is provided with a universal wheel (8) at the bottom. The support foot (7) includes a first support rod (9) and a second support rod (10). The top of the first support rod (9) is fixedly connected to the bottom of the drive frame (1). The bottom of the first support rod (9) is provided with a plug rod (11). The top of the second support rod (10) is provided with a slot (12) that matches the plug rod (11). The universal wheel (8) is located at the bottom of the second support rod (10). The outer wall of the second support rod (10) is vertically provided with a servo electric cylinder (13). The output end of the servo electric cylinder (13) is fixedly connected to the outer wall of the first support rod (9).

3. The high-precision ground leveling device with controllable flatness according to claim 1, characterized in that: The bottom of the inner wall of the leveling frame (2) is provided with a first cavity (23) that matches the leveling roller (14), the inside of the leveling frame (2) is provided with a second cavity (24) that matches the first gear (17), the inside of the leveling frame (2) is provided with a third cavity (25) that matches the second gear (18), and the inside of the leveling frame (2) is provided with a fourth cavity (26) that matches the fan-shaped plate (19).

4. The high-precision ground leveling device with controllable flatness according to claim 3, characterized in that: The second cavity (24) is connected to the third cavity (25), the fourth cavity (26) is connected to the movable cavity (20), the first cavity (23) is isolated from the movable cavity (20), the second cavity (24) is isolated from the first cavity (23), and the third cavity (25) is isolated from the movable cavity (20).

5. The high-precision ground leveling device with controllable flatness according to claim 1, characterized in that: The swing frame (21) includes a swing rod (27) and a support frame (28). The swing rod (27) is rotatably connected to the support frame (28), and a torsion spring is provided between the swing rod (27) and the support frame (28).

6. The high-precision ground leveling device with controllable flatness according to claim 1, characterized in that: The outer wall of the counterweight (22) is provided with an arc plate (30), the inner wall of the movable cavity (20) is provided with an arc slide rail (32) that matches the arc plate (30), buffer plates (31) are symmetrically provided on both sides of the outer wall of the arc plate (30), and several balls (33) that match the arc slide rail (32) are symmetrically provided at both ends of the arc plate (30).

7. The high-precision ground leveling device with controllable flatness according to claim 1, characterized in that: The leveling frame (2) has a scraper (34) at the bottom outside the leveling roller (14). The scraper (35) is symmetrically arranged on both sides of the bottom of the scraper (34). The leveling frame (2) has an installation groove (36) that matches the scraper (34) at the bottom. The scraper (34) has a limiting block (37) symmetrically arranged on both sides of the outer wall of the scraper (34). The leveling frame (2) and the installation groove (36) have a limiting groove (38) that matches the limiting block (37) on the outside.

8. The high-precision ground leveling device with controllable flatness according to claim 1, characterized in that: The leveling frame (2) has a pusher frame (39) at both ends of its bottom inclined and symmetrical. The pusher frame (39) has a pusher roller (40) rotatably connected to the bottom of its inner side. The pusher roller (40) is flush with the bottom of the leveling roller (14).

9. The high-precision ground leveling device with controllable flatness according to claim 1, characterized in that: The hinge frame (5) includes a first connecting frame (41), a second connecting frame (42) and a connecting piece (43). One end of the connecting piece (43) is rotatably connected to the first connecting frame (41) via a third support shaft (44), and the other end of the connecting piece (43) is rotatably connected to the second connecting frame (42) via a fourth support shaft (45).

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