A high-stability screed head and an electric-driven laser screed machine comprising the same

Abstract

The application discloses a high-stability leveling head and an electric-drive laser leveling machine containing the same, and relates to the technical field of laser leveling machines. The high-stability leveling head comprises a mounting plate, a connecting plate is arranged at the upper end of the mounting plate, a hydraulic telescopic rod is vertically arranged at the lower end of the mounting plate, a support is arranged at the output end of the hydraulic telescopic rod, a fixed frame is arranged at the lower end of the support, two first screeding plates are vertically arranged at the top of the fixed frame, a collecting port is arranged between the two first screeding plates, and two second screeding plates are vertically arranged at the top of the fixed frame. The first screeding plates in the shape of an eight are used for guiding and collecting the paving materials, the second screeding plates in the shape of a V are used for dispersing the collected paving materials, and the spiral conveying blades are used for auxiliary guiding and conveying, so that the paving materials higher than the leveling height can be pushed to the pits and depressions lower than the leveling height, and the rapid leveling of the paving surface is realized.

Description

Technical Field

[0001] This invention relates to the field of laser leveling machine technology, specifically a high-stability leveling head and an electrically driven laser leveling machine containing the leveling head. Background Technology

[0002] A laser screed is an engineering device that uses laser technology to achieve high-precision ground leveling, mainly used in concrete paving, floor construction, road repair, and other similar applications. It automatically controls the height of the screed head through a laser emitter and receiver to ensure the ground achieves extremely high levels of levelness or slope.

[0003] When leveling paving materials, existing equipment mostly uses vibration to allow the materials to flow freely and level them. This method is not very effective for leveling materials with poor flowability. At the same time, existing leveling equipment generally requires laying materials that are higher than the leveling height before leveling, and it cannot collect excess materials, which easily leads to waste of materials.

[0004] To address the aforementioned issues, an improved high-stability leveling head and an electrically driven laser leveling machine incorporating this leveling head are designed. Summary of the Invention

[0005] The purpose of this invention is to provide a highly stable leveling head and an electrically driven laser leveling machine containing the leveling head, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A high-stability leveling head includes a mounting plate, a connecting plate mounted on the upper end of the mounting plate, a hydraulic telescopic rod vertically mounted on the lower end of the mounting plate, a bracket mounted on the output end of the hydraulic telescopic rod, a fixing frame mounted on the lower end of the bracket, two symmetrical first scraper plates vertically mounted on the top of the fixing frame, the two first scraper plates forming a V-shape, a collection port provided between the two first scraper plates, the end of the first scraper plate away from the collection port mounted on the inner wall of the fixing frame, the height of the first scraper plate being greater than the height of the fixing frame, and two symmetrical second scraper plates vertically mounted on the top of the fixing frame. The two scraper plates are connected at their closest ends. The two second scraper plates are V-shaped with the tips of the V-shapes facing the collection port. The two second scraper plates are mounted on the inner wall of the fixed frame at their furthest ends. The height of the second scraper plates is the same as that of the first scraper plate. During leveling, the fixed frame moves from the second scraper plate towards the first scraper plate. Both the first and second scraper plates are equipped with auxiliary conveying mechanisms for guiding and conveying the spread material. The side wall of the fixed frame at the end of the second scraper plate away from the center of the fixed frame is equipped with a collection and feeding mechanism for collecting excess spread material and conveying it to the side of the first scraper plate away from the second scraper plate.

[0008] As a further embodiment of the present invention: the auxiliary conveying mechanism includes housings corresponding one-to-one with the second scraper plate and the first scraper plate. The housing corresponding to the second scraper plate is installed on the side wall of the second scraper plate near the collection port and is located on the material guiding side of the second scraper plate. The housing corresponding to the first scraper plate is installed on the side wall of the first scraper plate away from the collection port and is located on the material guiding side of the first scraper plate. All housings are located inside a fixed frame. Support plates are installed at the end of the first scraper plate near the collection port and the end of the second scraper plate away from the collection port. A first rotating rod is provided between the housing and the support plate. The two ends of the first rotating rod are rotatably connected to the support plate and the housing, respectively. Spiral conveying blades for conveying the material are installed on the side wall of the first rotating rod. The lower end of the spiral conveying blade is flush with the lower ends of the first scraper plate and the second scraper plate. The end of the first rotating rod away from the support plate passes through the side wall of the box and is equipped with a second bevel gear. The second bevel gear is located inside the box. The bottom of the box is rotatably connected to a second rotating rod. The upper end of the second rotating rod passes through the top of the box and the top of the fixed frame and is rotatably connected to the top of the bracket. The side wall of the second rotating rod inside the box is equipped with a first bevel gear that works with the second bevel gear. The first bevel gear and the second bevel gear mesh with each other. The spiral conveying blade on the first scraper plate conveys the material towards the collection port. The spiral conveying blade on the second scraper plate conveys the material away from the collection port. The upper end of the fixed frame is equipped with a drive assembly for driving the second rotating rod to rotate.

[0009] As a further embodiment of the present invention: the driving assembly includes a motor, the motor is mounted on the upper end of the fixed frame, a third rotating rod is vertically mounted on the output end of the motor, the upper end of the third rotating rod is rotatably connected to the top of the bracket, a second pulley corresponding to the second rotating rod is mounted on the side wall of the third rotating rod, a first pulley cooperating with the second pulley is mounted on the side wall of the second rotating rod between the fixed frame and the bracket, and a belt for driving the first pulley to rotate is sleeved on the side walls of the first pulley and the second pulley.

[0010] As a further embodiment of the present invention: the collecting and feeding mechanism includes a lifting auger corresponding to the second scraper plate. The lifting auger is vertically installed on the side wall of the fixed frame away from the collection port of the second scraper plate. The output end of the lifting auger is equipped with a collection frame for collecting the spread material. The lower end of the collection frame is flush with the lower end of the second scraper plate. The opening of the collection frame is directly opposite the output end of the spiral conveying blade on the second scraper plate. The output end of the lifting auger is equipped with an output pipe. The end of the output pipe away from the lifting auger is located on the top of the fixed frame on the side of the spiral conveying blade on the first scraper plate near the housing.

[0011] As a further embodiment of the present invention: the side walls of the mounting plate, bracket, and fixing frame are all equipped with reinforcing support ribs to improve the structural strength of the mounting plate, bracket, and fixing frame.

[0012] As a further aspect of the present invention: guide strips are provided on the side walls of both the first scraper plate and the second scraper plate to facilitate the guiding and conveying of the spread material.

[0013] As a further embodiment of the present invention: the lifting auger, the output pipe, and the collecting frame are all detachably connected to the fixing frame by screws.

[0014] As a further embodiment of the present invention: limit rods are vertically installed at the four corners of the lower end of the mounting plate, and limit sleeves are slidably sleeved on the side walls of the limit rods, with the lower ends of the limit sleeves installed on the upper end of the bracket.

[0015] As a further aspect of the present invention, both the second and third rotating rods are provided with reinforcing ribs to improve the structural strength of the second and third rotating rods.

[0016] An electrically driven laser screed includes a vehicle body and a high-stability screed head. A mounting beam is horizontally mounted on the upper end of the vehicle body. A connecting block is mounted on the end of the mounting beam away from the vehicle body. The connecting block is detachably connected to a connecting plate on the high-stability screed head by bolts. The vehicle body is located on the side of the high-stability screed head away from the second scraping plate, where the first scraping plate is located.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] This invention uses a first scraper plate in the shape of an eight to guide and collect the material, then uses a second scraper plate in the shape of a V to disperse the collected material, and uses spiral conveyor blades for auxiliary guiding and conveying. This allows the material that is higher than the leveling height to be pushed to the pits and depressions that are lower than the leveling height, thus achieving rapid leveling of the material surface.

[0019] This invention collects excess material after it has been dispersed by the second scraper plate using a collection frame, and then transports the excess material to the side of the first scraper plate near the housing via an lifting auger and an output pipe. This avoids the inability to fill the pits and depressions on the material surface due to insufficient material, thereby achieving rapid leveling of the material surface. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the structure of the electrically driven laser leveling machine in this invention.

[0021] Figure 2 This is a schematic diagram of the flattening head in this invention.

[0022] Figure 3 This is a schematic diagram of the structure of the first scraper plate and the second scraper plate in this invention.

[0023] Figure 4 This is a schematic diagram of the auxiliary conveying mechanism in this invention.

[0024] Figure 5 This is a schematic diagram of the driving component in this invention.

[0025] The components are as follows: 1. Fixed frame; 2. Motor; 3. Bracket; 4. Output pipe; 5. Lifting auger; 6. Limiting cylinder; 7. Limiting rod; 8. Mounting plate; 9. Connecting plate; 10. Hydraulic telescopic rod; 11. Gathering frame; 12. First scraper plate; 13. Second scraper plate; 14. Box body; 15. Spiral conveyor blade; 16. Gathering port; 17. Support plate; 18. First rotating rod; 19. Second rotating rod; 20. First bevel gear; 21. Second bevel gear; 22. First pulley; 23. Belt; 24. Second pulley; 25. Third rotating rod; 26. Car body; 27. Mounting beam; 28. Connecting block. Detailed Implementation

[0026] 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.

[0027] Please see Figures 1-5 In this embodiment of the invention, a high-stability leveling head includes a mounting plate 8. A connecting plate 9 is mounted on the upper end of the mounting plate 8, and a hydraulic telescopic rod 10 is vertically mounted on the lower end of the mounting plate 8. A bracket 3 is mounted on the output end of the hydraulic telescopic rod 10, and a fixing frame 1 is mounted on the lower end of the bracket 3. Two symmetrical first scraper plates 12 are vertically mounted on the top of the fixing frame 1, forming a V-shape. A collection port 16 is provided between the two first scraper plates 12. The end of each first scraper plate 12 away from the collection port 16 is mounted on the inner wall of the fixing frame 1. The height of the first scraper plate 12 is greater than the height of the fixing frame 1. Two symmetrical second scraper plates 13 are vertically mounted on the top of the fixing frame 1. The two second scraper plates 13 are connected at their close ends, forming a V-shape with the tip of the V facing the collection port 16. The two second scraper plates 13 are mounted on the inner wall of the fixed frame 1 at their far ends. The height of the second scraper plates 13 is the same as that of the first scraper plate 12. During leveling, the fixed frame 1 moves from the second scraper plate 13 toward the first scraper plate 12. Both the first scraper plate 12 and the second scraper plate 13 are provided with auxiliary conveying mechanisms for guiding and conveying the spread material. The side wall of the fixed frame 1 at the end of the second scraper plate 1 away from the center of the fixed frame 1 is provided with a collection and feeding mechanism for collecting excess spread material and conveying it to the side of the first scraper plate 12 away from the second scraper plate 13.

[0028] Limiting rods 7 are vertically installed at the four corners of the lower end of the mounting plate 8. Limiting sleeves 6 are slidably sleeved on the side wall of the limiting rods 7. The lower end of the limiting sleeves 6 is installed on the upper end of the bracket 3.

[0029] The auxiliary conveying mechanism includes housings 14 corresponding to the second scraper plate 13 and the first scraper plate 12. The housing 14 corresponding to the second scraper plate 13 is installed on the side wall of the second scraper plate 13 near the collection port 16 and is located on the material guiding side of the second scraper plate 13. The housing 14 corresponding to the first scraper plate 12 is installed on the side wall of the first scraper plate 12 away from the collection port 16 and is located on the material guiding side of the first scraper plate 12. Both housings 14 are located inside the fixed frame 1. Support plates 17 are installed at the end of the first scraper plate 12 near the collection port 16 and at the end of the second scraper plate 13 away from the collection port 16. A first rotating rod 18 is provided between the housings 14 and the support plates 17. The two ends of the first rotating rod 18 are rotatably connected to the support plates 17 and the housings 14, respectively. Spiral conveying blades 15 for conveying the spread material are installed on the side wall of the first rotating rod 18. The lower end of 5 is flush with the lower ends of the first scraper plate 12 and the second scraper plate 13. The end of the first rotating rod 18 away from the support plate 17 passes through the side wall of the box 14 and is equipped with a second bevel gear 21. The second bevel gear 21 is located inside the box 14. The bottom of the box 14 is rotatably connected to a second rotating rod 19. The upper end of the second rotating rod 19 passes through the top of the box 14 and the top of the fixed frame 1 and is rotatably connected to the top of the bracket 3. The side wall of the second rotating rod 19 inside the box 14 is equipped with a first bevel gear 20 that works with the second bevel gear 21. The first bevel gear 20 and the second bevel gear 21 mesh with each other. The spiral conveying blades 15 on the first scraper plate 12 convey the material to the collection port 16. The spiral conveying blades 15 on the second scraper plate 13 convey the material away from the collection port 16. The upper end of the fixed frame 1 is provided with a drive assembly for driving the second rotating rod 19 to rotate.

[0030] The drive assembly includes a motor 2, which is mounted on the upper end of the fixed frame 1. A third rotating rod 25 is vertically mounted on the output end of the motor 2. The upper end of the third rotating rod 25 is rotatably connected to the top of the bracket 3. A second pulley 24 corresponding to a second rotating rod 19 is mounted on the side wall of the third rotating rod 25. A first pulley 22 that cooperates with the second pulley 24 is mounted on the side wall of the second rotating rod 19 between the fixed frame 1 and the bracket 3. A belt 23 for driving the first pulley 22 to rotate is fitted on the side walls of the first pulley 22 and the second pulley 24.

[0031] In use, motor 2 is started, which drives the third rotating rod 25 to rotate. The third rotating rod 25 drives the second pulley 24 to rotate, the second pulley 24 drives the belt 23 to rotate, the belt 23 drives the first pulley 22 to rotate, the first pulley 22 drives the second rotating rod 19 to rotate, the second rotating rod 19 drives the first bevel gear 20 to rotate, the first bevel gear 20 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the first rotating rod 18 to rotate, and the first rotating rod 18 drives the spiral conveying blades 15 to rotate. This causes the spiral conveying blades 15 on the first scraper plate 12 to convey the material towards the collection port 16, and the spiral conveying blades 15 on the second scraper plate 13 to convey the material away from the collection port 16, thus achieving the leveling of the material.

[0032] The material collection and feeding mechanism includes a lifting auger 5 corresponding to the second scraper plate 13. The lifting auger 5 is vertically installed on the side wall of the fixed frame 1 on the side of the second scraper plate 13 away from the collection port 16. The output end of the lifting auger 5 is equipped with a collection frame 11 for collecting the material. The lower end of the collection frame 11 is flush with the lower end of the second scraper plate 13. The opening of the collection frame 11 is directly opposite the output end of the spiral conveying blade 15 on the second scraper plate 13. The output end of the lifting auger 5 is equipped with an output pipe 4. The end of the output pipe 4 away from the lifting auger 5 is located on the top of the fixed frame 1 on the side of the spiral conveying blade 15 on the first scraper plate 12 near the box 14.

[0033] During use, the second scraper plate 13 scrapes the material flat, while the spiral conveyor blades 15 convey the material. Guided by the second scraper plate 13 and conveyed by the spiral conveyor blades 15, the material enters the collecting frame 11. The collecting frame 11 conveys the excess material to the input end of the lifting auger 5. The lifting auger 5 lifts the material and then conveys it to the output pipe 4. The output pipe 4 conveys the material to the side of the spiral conveyor blades 15 on the first scraper plate 12 near the housing 14, to avoid the inability to fill the pits on the material surface due to insufficient material.

[0034] An electrically driven laser leveling machine includes a vehicle body 26 and a high-stability leveling head. A mounting beam 27 is horizontally mounted on the upper end of the vehicle body 26. A connecting block 28 is mounted on the end of the mounting beam 27 away from the vehicle body 26. The connecting block 28 is detachably connected to a connecting plate 9 on the high-stability leveling head by bolts. The vehicle body 26 is located on the side of the first scraper plate 12 of the high-stability leveling head away from the second scraper plate 13.

[0035] The working principle of an electrically driven laser leveling machine containing the above-mentioned leveling head:

[0036] After the ground is covered with paving material, the vehicle body 26 is moved onto the paving material. Then, the leveling height is measured using a laser. Then, the hydraulic telescopic rod 10 is activated. The output end of the hydraulic telescopic rod 10 pushes the bracket 3 to move. The bracket 3 drives the fixed frame 1 to move. The fixed frame 1 drives the first scraper plate 12 and the second scraper plate 13 to move downward, so that the lower ends of the first scraper plate 12, the second scraper plate 13, the spiral conveyor blade 15, and the collecting frame 11 are at the leveling height. Then, the vehicle body 26 is activated to move away from the mounting plate 8.

[0037] Simultaneously, motor 2 is started, which drives the third rotating rod 25 to rotate. The third rotating rod 25 drives the second pulley 24 to rotate, the second pulley 24 drives the belt 23 to rotate, the belt 23 drives the first pulley 22 to rotate, the first pulley 22 drives the second rotating rod 19 to rotate, the second rotating rod 19 drives the first bevel gear 20 to rotate, the first bevel gear 20 drives the second bevel gear 21 to rotate, the second bevel gear 21 drives the first rotating rod 18 to rotate, and the first rotating rod 18 drives the spiral conveying blades 15 to rotate. This causes the spiral conveying blades 15 on the first scraper plate 12 to convey the material towards the collection port 16, and the spiral conveying blades 15 on the second scraper plate 13 to convey the material away from the collection port 16. The first scraper plate 12 and the second scraper plate 13 then scrape the material to level it, thereby achieving the leveling of the material.

[0038] Meanwhile, guided by the second scraper plate 13 and conveyed by the spiral conveyor blades 15, the material enters the collection frame 11. The collection frame 11 conveys the excess material to the input end of the lifting auger 5. The lifting auger 5 lifts the material and then conveys it to the output pipe 4. The output pipe 4 conveys the material to the side of the spiral conveyor blades 15 on the first scraper plate 12 near the housing 14, so as to avoid the pits on the material surface not being filled due to insufficient material quantity.

[0039] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention.

Claims

1. A high-stability leveling head, comprising a mounting plate (8), a connecting plate (9) mounted on the upper end of the mounting plate (8), a hydraulic telescopic rod (10) vertically mounted on the lower end of the mounting plate (8), a bracket (3) mounted on the output end of the hydraulic telescopic rod (10), and a fixing frame (1) mounted on the lower end of the bracket (3), characterized in that, Two symmetrical first scraper plates (12) are vertically installed on the top of the fixed frame (1). The two first scraper plates (12) are V-shaped, and a collection port (16) is provided between the two first scraper plates (12). The end of the first scraper plate (12) away from the collection port (16) is installed on the inner wall of the fixed frame (1). The height of the first scraper plate (12) is greater than the height of the fixed frame (1). Two symmetrical second scraper plates (13) are vertically installed on the top of the fixed frame (1). The ends of the two second scraper plates (13) that are close to each other are connected together. The two second scraper plates (13) are V-shaped, and the tip of the V-shape is directly opposite the collection port (16). 16) The two second scraper plates (13) are mounted on the inner wall of the fixed frame (1) at their far ends. The height of the second scraper plate (13) is the same as that of the first scraper plate (12). When leveling, the fixed frame (1) moves from the second scraper plate (13) toward the first scraper plate (12). The first scraper plate (12) and the second scraper plate (13) are both provided with auxiliary conveying mechanisms for guiding and conveying the spread material. The side wall of the fixed frame (1) at the end of the second scraper plate (13) away from the center position of the fixed frame (1) is provided with a collection and feeding mechanism for collecting excess spread material and conveying it to the side of the first scraper plate (12) away from the second scraper plate (13).

2. The high-stability leveling head according to claim 1, characterized in that, The auxiliary conveying mechanism includes housings (14) corresponding one-to-one with the second scraper plate (13) and the first scraper plate (12). The housing (14) corresponding to the second scraper plate (13) is installed on the side wall of the second scraper plate (13) near the collection port (16) and is located on the material guiding side of the second scraper plate (13). The housing (14) corresponding to the first scraper plate (12) is installed on the side wall of the first scraper plate (12) away from the collection port (16) and is located on the material guiding side of the first scraper plate (12). All housings (14) are located on the side wall of the first scraper plate (12) away from the collection port (16). Inside the fixed frame (1), support plates (17) are installed at the end of the first scraper plate (12) near the collection port (16) and at the end of the second scraper plate (13) away from the collection port (16). A first rotating rod (18) is provided between the box body (14) and the support plate (17). The two ends of the first rotating rod (18) are rotatably connected to the support plate (17) and the box body (14) respectively. Spiral conveying blades (15) for conveying the spreading material are installed on the side wall of the first rotating rod (18). 5) The lower end of the first scraper plate (12) and the lower end of the second scraper plate (13) are flush. The end of the first rotating rod (18) away from the support plate (17) passes through the side wall of the box (14) and is equipped with a second bevel gear (21). The second bevel gear (21) is set inside the box (14). The bottom of the box (14) is rotatably connected to a second rotating rod (19). The upper end of the second rotating rod (19) passes through the top of the box (14) and the top of the fixed frame (1) and is rotatably connected to the top of the bracket (3). The inside of the box (14) The second rotating rod (19) is equipped with a first bevel gear (20) that works with the second bevel gear (21). The first bevel gear (20) and the second bevel gear (21) mesh with each other. The spiral conveying blades (15) on the first scraper plate (12) convey the material to the collection port (16). The spiral conveying blades (15) on the second scraper plate (13) convey the material away from the collection port (16). The upper end of the fixed frame (1) is provided with a drive assembly for driving the second rotating rod (19) to rotate.

3. A high-stability leveling head according to claim 2, characterized in that, The drive assembly includes a motor (2), which is mounted on the upper end of the fixed frame (1). A third rotating rod (25) is vertically mounted on the output end of the motor (2). The upper end of the third rotating rod (25) is rotatably connected to the top of the bracket (3). A second pulley (24) corresponding to the second rotating rod (19) is mounted on the side wall of the third rotating rod (25). A first pulley (22) that works with the second pulley (24) is mounted on the side wall of the second rotating rod (19) between the fixed frame (1) and the bracket (3). A belt (23) for the second pulley (24) to drive the first pulley (22) to rotate is fitted on the side wall of the first pulley (22) and the second pulley (24).

4. A high-stability leveling head according to claim 2, characterized in that, The material collection and feeding mechanism includes a lifting auger (5) corresponding to the second scraper plate (13). The lifting auger (5) is vertically installed on the side wall of the fixed frame (1) on the side away from the collection port (16) of the second scraper plate (13). The output end of the lifting auger (5) is equipped with a collection frame (11) for collecting the material. The lower end of the collection frame (11) is flush with the lower end of the second scraper plate (13). The opening of the collection frame (11) is directly opposite the output end of the spiral conveying blade (15) on the second scraper plate (13). The output end of the lifting auger (5) is equipped with an output pipe (4). The end of the output pipe (4) away from the lifting auger (5) is located on the top of the fixed frame (1) on the side of the spiral conveying blade (15) on the first scraper plate (12) near the box body (14).

5. A high-stability leveling head according to claim 1, characterized in that, The mounting plate (8), bracket (3), and fixing frame (1) are all equipped with reinforcing support ribs to improve the structural strength of the mounting plate (8), bracket (3), and fixing frame (1).

6. A high-stability leveling head according to claim 1, characterized in that, The first scraper plate (12) and the second scraper plate (13) are both provided with guide strips to facilitate the guiding and conveying of the material.

7. A high-stability leveling head according to claim 4, characterized in that, The lifting auger (5), output pipe (4), and collection frame (11) are all detachably connected to the fixing frame (1) by screws.

8. A high-stability leveling head according to claim 1, characterized in that, Limiting rods (7) are vertically installed at the four corners of the lower end of the mounting plate (8). Limiting sleeves (6) are slidably sleeved on the side wall of the limiting rods (7). The lower end of the limiting sleeves (6) is installed on the upper end of the bracket (3).

9. A high-stability leveling head according to claim 3, characterized in that, The interior of both the second rotating rod (19) and the third rotating rod (25) is provided with reinforcing ribs to improve the structural strength of the second rotating rod (19) and the third rotating rod (25).

10. An electrically driven laser leveling machine, comprising the high-stability leveling head as described in any one of claims 1-9, characterized in that, It also includes a vehicle body (26), on which a mounting beam (27) is horizontally mounted at the upper end. A connecting block (28) is mounted on the end of the mounting beam (27) away from the vehicle body (26). The connecting block (28) is detachably connected to the connecting plate (9) on the high-stability leveling head by bolts. The vehicle body (26) is located on the side of the first scraper plate (12) of the high-stability leveling head away from the second scraper plate (13).

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