Concrete pavement leveling device

Abstract

The utility model relates to the technical field of highway construction, and provides a concrete pavement leveling device which comprises a frame (1), moving wheels (2) are mounted on the frame (1), and a coarse leveling mechanism (3), a compaction mechanism (4) and a fine leveling mechanism (5) are sequentially mounted on the frame (1) from front to back. The coarse leveling mechanism (3) comprises a fixed frame (31) fixedly connected to the vehicle frame (1), a movable frame (32) is attached to the interior of the fixed frame (31) in a sliding mode, a threaded rod (33) penetrates through the movable frame (32) and is in threaded connection with the movable frame (32), the upper end of the threaded rod (33) is fixedly connected with the output end of a servo motor (34) installed in the fixed frame (31), and the lower end of the movable frame (32) is fixedly connected with a first leveling plate (35). And coarse leveling and fine leveling can be performed at the same time.

Description

Technical Field

[0001] This utility model relates to the field of highway construction technology, and more specifically, to a concrete pavement leveling device. Background Technology

[0002] In modern road construction, concrete pavement has become the preferred choice for many major traffic arteries due to its high strength, durability, and good smoothness. During concrete pavement construction, workers need to erect formwork on both sides of the top of the roadbed along its length. Then, concrete is poured between the formwork. After the concrete is poured and vibrated, workers need to finish the concrete surface. The quality of this finishing directly affects the smoothness and evenness of the concrete pavement.

[0003] Patent document CN220977596U discloses a concrete pavement leveling device, including a main body. A connecting block is fixedly connected to one side surface of the main body near the top. A rotating groove is formed on the side surface of the connecting block away from the main body. A rotating shaft is rotatably connected inside the rotating groove. A push rod is fixedly connected to the side surface of the rotating shaft away from the rotating groove. A connecting rod is fixedly installed inside the main body. A connecting plate is fixedly installed in the middle of the surface of the connecting rod. Support rods are symmetrically installed on both sides of the bottom surface of the connecting plate. A support plate is fixedly connected to the bottom surface of the support rod. An installation box is connected through the middle of the surface of the support plate. This device allows the compaction roller to better level the concrete pavement, thereby improving the efficiency of pavement leveling. It also allows for further compaction of the leveled pavement, thus improving the quality of concrete pavement pouring.

[0004] However, existing leveling devices cannot adjust the leveling height. As needed, coarse leveling is usually required followed by fine leveling to achieve a satisfactory leveling effect. Existing technology only uses rollers for leveling, which makes it difficult to meet the requirements when performing coarse and fine leveling because the leveling height cannot be adjusted. Moving the device back and forth on the road surface to achieve the required leveling effect would reduce work efficiency. Utility Model Content

[0005] To overcome the shortcomings mentioned above, this utility model aims to provide a concrete pavement leveling device that can adjust the leveling height and perform both coarse and fine leveling simultaneously.

[0006] A concrete pavement leveling device includes a frame with movable wheels mounted on it. A coarse leveling mechanism, a compaction mechanism, and a fine leveling mechanism are sequentially mounted on the frame from front to back. The coarse leveling mechanism includes a fixed frame fixed to the frame, a movable frame slidingly fitted within the fixed frame, a threaded rod threaded through and screwed onto the movable frame, the upper end of the threaded rod being fixedly connected to the output end of a servo motor mounted within the fixed frame, and a first leveling plate fixedly connected to the lower end of the movable frame.

[0007] Furthermore, the fine leveling mechanism includes a mounting bracket fixed to the vehicle frame, and a second leveling plate is fixed to the lower end of the mounting bracket.

[0008] Furthermore, the compaction mechanism includes two mounting members fixed to the vehicle frame and a sliding frame whose ends slide within the two mounting members. A compaction plate is fixed to the lower end of the sliding frame, and a vibration motor is mounted on the compaction plate.

[0009] Furthermore, the mounting component includes a mounting box fixed to the vehicle frame, the end of the sliding frame sliding within the mounting box, a fixing plate detachably connected to the mounting box, and a spring connecting the fixing plate and the end of the sliding frame.

[0010] Furthermore, copper sheets are fixed to the inner sidewalls of the mounting box.

[0011] Furthermore, a rubber plate is fixed to the bottom of the mounting box.

[0012] Furthermore, both the first and second adjusting plates are tilted.

[0013] Furthermore, a cover plate is rotatably connected to the fixed frame.

[0014] Furthermore, a connecting frame is fixedly connected to the front side of the vehicle frame, and a connecting ring is fixedly connected to the connecting frame.

[0015] Furthermore, ribs are fixedly connected between the first adjusting plate and the movable frame, and between the second adjusting plate and the mounting frame.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] In this invention, a moving device causes the moving wheels to advance along a laid track or a pre-set route. A servo motor outputs a threaded rod to rotate, thereby adjusting the height of the lower end of the first leveling plate from the road surface. This allows for adjustment of the leveling height as needed. A transport vehicle pulls the device, causing the first leveling plate to roughly level the concrete road surface, eliminating significant height differences. Then, a vibrating motor outputs a compaction plate that repeatedly compacts the concrete road surface during the device's movement, expelling air from the concrete and making the road surface more compact. Finally, a fine leveling mechanism performs fine leveling to ensure the road surface's flatness meets design requirements. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0019] Figure 1 This is a schematic diagram of the overall structure of a concrete pavement leveling device.

[0020] Figure 2 A partial structural diagram of a concrete pavement leveling device Figure 1 ;

[0021] Figure 3 A partial structural diagram of a concrete pavement leveling device Figure 2 ;

[0022] Figure 4 This is a breakdown diagram of the compaction mechanism;

[0023] Figure 5 This is a schematic diagram of the mounting box.

[0024] In the diagram: 1. Frame; 2. Moving wheel; 3. Coarse leveling mechanism; 31. Fixed frame; 32. Moving frame; 33. Threaded rod; 34. Servo motor; 35. First leveling plate; 36. Cover plate; 4. Compaction mechanism; 41. Mounting component; 411. Mounting box; 412. Fixed plate; 42. Sliding frame; 43. Compaction plate; 44. Vibration motor; 45. Spring; 46. Copper sheet; 47. Rubber plate; 5. Fine leveling mechanism; 51. Mounting frame; 52. Second leveling plate; 6. Rib plate; 7. Connecting frame; 8. Connecting ring. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model. Specific implementation examples:

[0027] like Figure 1-5 As shown, a concrete pavement leveling device includes a frame 1, on which movable wheels 2 are mounted. The movable wheels 2 are rubber tires. From front to back, a coarse leveling mechanism 3, a compaction mechanism 4, and a fine leveling mechanism 5 are sequentially mounted on the frame 1. The coarse leveling mechanism 3 includes a fixed frame 31 fixedly connected to the frame 1. A movable frame 32 is slidably fitted inside the fixed frame 31. A threaded rod 33 passes through and is threadedly connected to the movable frame 32. The upper end of the threaded rod 33 is fixedly connected to the output end of a servo motor 34 installed inside the fixed frame 31. The lower end of the movable frame 32 is inclinedly fixedly connected to a first leveling plate 35. The output of the servo motor 34 causes the threaded rod 33 to rotate. Since the moving frame 32 is attached to and slides within the fixed frame 31, the moving frame 32 moves along the length of the threaded rod 33, thereby adjusting the height of the lower end of the first leveling plate 35 from the road surface. This allows the leveling height to be adjusted as needed. The first leveling plate 35 is moved by the transport vehicle pulling device to roughly level the concrete road surface, removing large height differences. Then, the compaction mechanism 4 repeatedly rolls the concrete road surface to expel air from the concrete, making the road surface more compact. Finally, the fine leveling mechanism 5 performs fine leveling to ensure that the flatness of the road surface meets the design requirements.

[0028] like Figure 1-5 As shown, the fine leveling mechanism 5 includes a mounting bracket 51 fixedly connected to the frame 1. The lower end of the mounting bracket 51 is inclinedly and fixedly connected to a second leveling plate 52. The lowest end of the second leveling plate 52 is at a fixed height from the road surface (meeting the design requirements). The second leveling plate 52 performs fine (precise) leveling on the compacted road surface.

[0029] like Figure 1-5 As shown, the compaction mechanism 4 includes two mounting parts 41 fixedly connected to the frame 1 and a sliding frame 42 whose ends slide within the two mounting parts 41. A compaction plate 43 is fixedly connected to the lower end of the sliding frame 42. A vibration motor 44 is installed on the compaction plate 43. Through the output of the vibration motor 44, the compaction plate 43 repeatedly compacts the concrete pavement during the movement of the device.

[0030] like Figure 1-5As shown, the mounting component 41 includes a mounting box 411, which is fixedly connected to the frame 1. The end of the sliding frame 42 slides inside the mounting box 411. A fixing plate 412 is detachably connected to the mounting box 411 by bolts. A spring 45 is connected between the fixing plate 412 and the end of the sliding frame 42. By setting the spring 45, the vibration motor 44 cooperates with the spring 45 to improve the vibration compaction efficiency when it is operating.

[0031] like Figure 1-5 As shown, copper sheets 46 are fixedly connected to the inner wall of the mounting box 411. The copper sheets 46 protect the inner wall of the mounting box 411 and prevent excessive wear. The copper sheets 46 are inexpensive, reducing costs. By removing the bolts, the fixing plate 412 can be removed from the mounting box 411, thereby removing the sliding frame 42 and the compaction plate 43 from the mounting box 411, which facilitates the inspection or replacement of the copper sheets 46 and the rubber plate 47.

[0032] like Figure 1-5 As shown, a rubber plate 47 is fixedly connected to the bottom wall of the mounting box 411. The rubber plate 47 is provided to buffer the impact force on the sliding frame 42 when the vibration motor 44 and the spring 45 move the sliding frame 42 up and down, so as to protect the mounting box 411.

[0033] like Figure 1-5 As shown, ribs 6 are fixedly connected between the first adjusting plate 35 and the movable frame 32, and between the second adjusting plate 52 and the mounting frame 51. The ribs 6 support the inclined first adjusting plate 35 and the second adjusting plate 52, and provide support force on the back side when leveling.

[0034] like Figure 1-5 As shown, a cover plate 36 is rotatably connected to the fixing frame 31. The cover plate 36, together with the fixing frame 31, covers the servo motor 34 and the threaded rod 33 to protect them.

[0035] like Figure 1-5 As shown, a connecting frame 7 is fixedly connected to the front side of the frame 1, and a connecting ring 8 is fixedly connected to the connecting frame 7. The connecting ring 8, together with the rope, can be connected to the transport vehicle. For example, when connected to a paver, after the paver has spread the concrete evenly, the device will follow up to level the road surface.

[0036] Both the servo motor 34 and the vibration motor 44 are electrically connected to an external power supply and to a control unit (not shown in the figure).

[0037] The working principle of a concrete pavement leveling device in this embodiment is as follows: After the concrete is poured onto the pavement, a traditional paver is used to spread the concrete roughly evenly. The moving device moves the moving wheel 2 along the laid track or a pre-set route. The output of the servo motor 34 causes the threaded rod 33 to rotate, thereby adjusting the height of the lower end of the first leveling plate 35 from the pavement. The leveling height can then be adjusted according to requirements. The device is moved by a transport vehicle, so that the first leveling plate 35 roughly scrapes the concrete pavement to remove large height differences. Then, the output of the vibrating motor 44 causes the compaction plate 43 to repeatedly compact the concrete pavement during the movement of the device, expelling air from the concrete and making the pavement more compact. Finally, the fine leveling mechanism 5 performs fine leveling to ensure that the flatness of the pavement meets the design requirements.

[0038] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model 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 this utility model should be included within the protection scope of this utility model.

Claims

1. A concrete pavement screed, comprising: The utility model provides a road roller, including frame (1), mobile wheel (2) is installed on frame (1), rough adjustment mechanism (3), compaction mechanism (4) and fine adjustment mechanism (5) are installed in sequence from front to back on frame (1), rough adjustment mechanism (3) includes the fixed frame (31) of being fixed to frame (1), the mobile frame (32) of being pasted with sliding in fixed frame (31), the threaded rod (33) of being screwed through and being screwed on mobile frame (32), the output end of servo motor (34) being installed in the upper end of threaded rod (33) and the fixed frame (31), the lower end of mobile frame (32) is fixed with first leveling plate (35).

2. A concrete pavement screed as defined in claim 1 wherein: Fine adjustment mechanism (5) includes the mounting frame (51) of being fixed to frame (1), and the lower end of mounting frame (51) is fixed with second leveling plate (52).

3. A concrete pavement screed as defined in claim 1 wherein: Compaction mechanism (4) includes two mounting pieces (41) of being fixed to frame (1) and the sliding frame (42) of the end sliding in two mounting pieces (41), the lower end of sliding frame (42) is fixed with compaction plate (43), and vibration motor (44) is installed on compaction plate (43).

4. A concrete pavement screed as defined in claim 3 wherein: The mounting piece (41) includes installation box (411), and installation box (411) is fixed to frame (1), and the end of sliding frame (42) is sliding in installation box (411), and the fixed plate (412) of detachable connection is connected on installation box (411), and spring (45) is connected between the end of sliding frame (42) and fixed plate (412).

5. A concrete pavement screed as defined in claim 4 wherein: The copper sheet (46) is fixed to the inner side wall of installation box (411).

6. A concrete pavement screed as defined in claim 5 wherein: The rubber plate (47) is fixed to the bottom of installation box (411).

7. A concrete pavement screed as defined in claim 2 wherein: The first leveling plate (35) and second leveling plate (52) are both inclinedly arranged.

8. A concrete pavement screed as defined in claim 1 wherein: The cover plate (36) is rotatably connected to the fixed frame (31).

9. A concrete pavement screed as defined in claim 1 wherein: The connecting frame (7) is fixed to the front side of frame (1), and the connecting ring (8) is fixed to the connecting frame (7).

10. A concrete pavement screed as defined in claim 7, wherein: The rib plate (6) is fixed between the first leveling plate (35) and the mobile frame (32), and the rib plate (6) is fixed between the second leveling plate (52) and the mounting frame (51).

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