Thin-layer asphalt pavement compacting device

Abstract

The utility model discloses a thin-layer asphalt pavement compacting device which comprises racks arranged on the two sides, and light and heavy rolling mechanisms are assembled and connected to the two ends of the racks respectively. The light and heavy rolling mechanism comprises adjusting rotating frames arranged at the two ends, and the adjusting rotating frames are rotationally connected to the rack. A light compression roller structure and a heavy compression roller structure are assembled and connected between the adjusting rotating frames, the light compression roller structure and the heavy compression roller structure further comprise a motor for driving the adjusting rotating frames to rotate, and under driving of the motor, the light compression roller structure and the heavy compression roller structure are switched to roll the asphalt pavement; a plurality of adjusting roller mechanisms matched with the light and heavy rolling mechanisms are assembled and connected to the rack; and in the rolling switching process of the light compression roller structure and the heavy compression roller structure, the roller mechanism is adjusted to switch rollers with different sizes for matching. By means of the structure, flexible adjustment between light pressure and heavy pressure can be achieved according to the horizontal condition in the asphalt road rolling process, and the road surface can be conveniently corrected to be horizontal.

Description

Technical Field

[0001] This utility model belongs to the field of asphalt pavement compaction technology, and in particular relates to a thin-layer asphalt pavement compaction device. Background Technology

[0002] Currently, in the road construction process, the compaction of thin-layer asphalt pavement (usually referring to asphalt layers with a thickness of less than 5cm) is a key step in road construction, and its quality directly affects the smoothness, skid resistance and durability of the road surface.

[0003] During the compaction of thin-layer asphalt pavements, large rollers are generally not used, especially in pavement repair work where the workload is not large. Large rollers can easily damage the normal pavement surface. Therefore, for thin-layer asphalt pavements, more mobile compaction equipment, such as long rollers, is often used. In actual construction, because the initial roller compaction during asphalt paving does not guarantee the smoothness of the pavement, rollers of different weights are often used to correct the levelness. For example, in areas where the material thickness is too thick, the levelness after roller compaction will not be consistent with normal paving. In this case, heavier rollers are needed to further compact the material and maintain the levelness of the entire road after correction.

[0004] Therefore, in actual operation, after the initial rolling, the levelness of the road surface is measured. For the part of the road surface that is higher than the horizontal reference surface, it is necessary to perform correction rolling again by heavy roller.

[0005] Therefore, in actual construction, it is often necessary to frequently change rollers of different weights for compaction. The drawback of this method is that because there are too many uneven areas on the road surface after compaction, frequently pushing heavier rollers onto the road surface for compaction is not only inefficient but also cumbersome. Therefore, it is extremely important to improve the efficiency of road surface compaction by using a road rolling device that can flexibly switch between light and heavy compaction. Utility Model Content

[0006] Based on the above background, the purpose of this utility model is to provide a thin-layer asphalt pavement compaction device.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A thin-layer asphalt pavement compaction device includes a frame arranged on both sides, with light and heavy roller compaction mechanisms respectively assembled and connected to both ends of the frame;

[0009] The light and heavy roller pressing mechanism includes adjustable rotating frames at both ends, which are rotatably connected to the frame;

[0010] The adjusting frame is equipped with a light pressure roller structure and a heavy pressure roller structure. The light and heavy roller pressing mechanism also includes a motor that drives the adjusting frame to rotate. Under the drive of the motor, the light pressure roller structure and the heavy pressure roller structure are switched to press onto the asphalt pavement.

[0011] The frame is equipped with several adjusting roller mechanisms that cooperate with the light and heavy roller pressing mechanisms; during the switching between the light and heavy pressing roller structures, the adjusting roller mechanisms switch to use rollers of different sizes.

[0012] Preferably, end brackets are fixedly connected to the left and right ends of the frame, and the adjustable rotating frame is rotatably connected to the end brackets via a rotating shaft;

[0013] A motor bracket is fixedly connected to the bottom of one side of the bracket, and the motor is fixedly mounted on the motor bracket.

[0014] Preferably, the longitudinal cross-sectional shape of the adjusting frame is triangular.

[0015] Preferably, the light pressure roller structure includes a pair of light pressure rollers that are rotatably connected to both sides of the lower end of the adjusting frame;

[0016] The heavy-duty roller structure includes a heavy-duty roller rotatably connected to the upper end of the adjusting frame.

[0017] Preferably, the diameter of the heavy-duty roller is larger than that of the light-duty roller; and the weight of the heavy-duty roller is greater than that of the light-duty roller.

[0018] Preferably, a pair of adjusting rollers spaced apart to the left and right are respectively mounted on the frame;

[0019] The adjusting roller mechanism includes a wheel seat rotatably connected to the frame;

[0020] The upper end of the wheel seat is equipped with an upper roller that mates with the heavy-duty roller, and the lower end of the wheel seat is equipped with a lower roller that mates with the light-duty roller; the diameter of the upper roller is larger than that of the lower roller.

[0021] The adjusting roller mechanism also includes a drive motor installed inside the frame, which switches between the upper and lower rollers to support the rollers rolling onto the ground.

[0022] Preferably, the output shaft of the drive motor is fixedly connected to the wheel seat;

[0023] The drive motors are fixedly connected by motor brackets, which are fixedly installed on the inner side of the frame via connecting columns.

[0024] Preferably, the frames are rotatably connected by a plurality of pressure rollers that cooperate with the light pressure rollers.

[0025] Preferably, sensor mechanisms are installed on the outer side walls of the frame.

[0026] This utility model has the following beneficial effects:

[0027] 1. During the operation, the pressure and light pressure can be adjusted according to the road surface elevation. Specifically, under motor drive, if the roller is pressing in an area that is too high above the horizontal reference plane (often due to excessive material being laid and fully flattened), the heavy pressure roller is adjusted to roll downwards onto the roadbed. Under the pressure of the heavy pressure roller, the levelness of the roadbed is fully corrected. For areas where the levelness is close to the horizontal reference plane, the light pressure roller is used for correction (because the road surface has undergone preliminary rolling, its compaction has already met the predetermined requirements; the flexible correction method using heavy and light pressure aims to correct the levelness of the road surface).

[0028] 2. The device achieves rolling and pressing on the road surface by switching rollers based on the different sizes of the rollers after adjusting for heavy and light pressure. Specifically, when switching to the heavy pressure roller, the heavy pressure roller contacts the ground, the frame is raised, and the drive motor then switches the larger diameter upper roller to the ground support. At this point, the bottom of the upper roller aligns with the heavy pressure roller, and the entire device rolls and presses on the road surface under the action of the automatically rolling upper roller.

[0029] 3. The device disclosed in this utility model enables the adjustment of heavy and light pressure according to the undulation of the road surface during the road compaction process, thereby increasing the efficiency of road level correction. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0031] Figure 1 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0032] Figure 2 This is a schematic diagram of the sensor mechanism in an embodiment of the present invention;

[0033] Figure 3 This is a schematic diagram of the light and heavy roller pressing mechanism in an embodiment of this utility model;

[0034] Figure 4 This is an embodiment of the present utility model. Figure 1 A structural diagram from another perspective.

[0035] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0036] 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.

[0037] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0038] Furthermore, in this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0039] Example 1

[0040] like Figure 1-4 As shown, a thin-layer asphalt pavement compaction device includes a frame 1 arranged on both the front and rear sides, with light and heavy roller compaction mechanisms 2 respectively assembled and connected to both ends of the frame 1. The light and heavy roller compaction mechanisms 2 adjust the roller compaction according to the levelness of the asphalt pavement during the compaction process. For example, for areas where the paving material is too thick and exceeds the horizontal reference plane, the compaction is adjusted to a heavy compaction mode.

[0041] Specifically, the light and heavy roller pressing mechanism 2 includes an adjusting frame 21 with triangular structures at both ends, which is rotatably connected to the frame 1.

[0042] Specifically, end brackets 11 are fixedly connected to the left and right ends of the frame 1, and the adjusting rotating frame 21 is rotatably connected to the end brackets 11 via rotating shafts. Specifically, similar to existing rotating connection methods, suitable bearings are installed on the end brackets 11.

[0043] Meanwhile, a light pressure roller structure and a heavy pressure roller structure are assembled and connected between the aforementioned adjusting frame 21. The light and heavy roller pressing mechanism 2 also includes a motor 24 that drives the adjusting frame 21 to rotate. Under the drive of the motor 24, the light pressure roller structure and the heavy pressure roller structure are switched to press onto the asphalt pavement.

[0044] Meanwhile, a motor bracket 241 is fixedly connected to the bottom of one end bracket 11, and the motor 24 is fixedly mounted on the motor bracket 241. Similar to the existing motor drive rotation method, the output shaft of the motor 24 is fixedly mounted on the output shaft of the rear adjusting frame 21, such as by means of a coupling.

[0045] During operation, the rotating frame 21 is rotated by a motor. During the rotation of the rotating frame 21, the light pressure roller structure and the heavy pressure roller structure of different weights are adjusted to press onto the roadbed.

[0046] Specifically, the light pressure roller structure includes a pair of light pressure rollers 21 (arranged in parallel) that are rotatably connected to the lower ends of the adjusting frame 21; the heavy pressure roller structure includes a heavy pressure roller 23 that is rotatably connected to the upper end of the adjusting frame 21.

[0047] Since the weight of the heavy pressure roller 23 is greater than that of the light pressure roller 21, the diameter of the heavy pressure roller 23 is greater than that of the light pressure roller 21; and the weight of the heavy pressure roller 23 is greater than that of the light pressure roller 21.

[0048] During operation, driven by the motor, if the roller is pressing in an area that is too high above the horizontal reference plane (often due to excessive material being laid and the material being fully spread), the heavy roller 23 is adjusted to roll downwards onto the roadbed. The pressure from the heavy roller 23 fully corrects the levelness of the roadbed. For areas where the levelness is close to the horizontal reference plane, the light roller 21 is used for correction (because the road surface has undergone preliminary rolling, its compaction has already met the predetermined requirements; the flexible correction method using heavy and light pressure aims to correct the levelness of the road surface).

[0049] In order to improve the leveling effect during the light pressure leveling process, several pressure rollers that cooperate with the light pressure rollers 21 are rotatably connected between the frames 1.

[0050] Example 2

[0051] like Figure 1-4 As shown, in this embodiment, based on the structure of embodiment 1, different diameter rollers are used for heavy and light pressure. Therefore, in order to ensure that rollers of different diameters can be rolled onto the ground, several adjusting roller mechanisms 4 that cooperate with the light and heavy pressure roller mechanisms 2 are assembled and connected on the frame 1. During the rolling process of the light pressure roller 21 structure and the heavy pressure roller 23 structure, the adjusting roller mechanism 4 switches to different sizes of rollers to cooperate.

[0052] Specifically, a pair of adjusting roller mechanisms 4, which are spaced apart on the left and right, are respectively mounted on the frame 1; the adjusting roller mechanism 4 includes a wheel seat 41 rotatably connected to the frame 1.

[0053] The upper end of the aforementioned wheel seat 41 is equipped with an upper roller 42 that cooperates with the heavy pressure roller 23, and the lower end of the wheel seat 41 is equipped with a lower roller 43 that cooperates with the light pressure roller 21; the diameter of the upper roller 42 is larger than the diameter of the lower roller 43.

[0054] In order to enable the upper roller 42 and the lower roller 43 to rotate independently, according to the existing method, an upper hub motor 45 is installed at the center of the hub of the upper roller 42 and the lower roller 43. The output shaft of the hub motor 45 is fixed on the wheel seat 41. When the hub motor works, because its output shaft is fixed on the wheel seat 41, the hub motor 45 carries the upper roller 42 and the lower roller 43 to rotate and roll.

[0055] In actual operation, the entire device can also be equipped with a handle to enable manual pushing and pressing, following the existing method.

[0056] The aforementioned adjusting roller mechanism 4 also includes a drive motor 44 installed inside the frame 1. The drive motor 44 switches between the upper roller 42 and the lower roller 43 to support the rollers rolling onto the ground. Specifically, the output shaft of the drive motor 44 is fixedly connected to the center of the wheel seat 41.

[0057] When switching between the heavy-duty roller 23 and the light-duty roller 21, for example, when switching to the heavy-duty roller 23, the heavy-duty roller 23 of the entire device is in contact with the ground, and the frame 1 is lifted. At this time, the drive motor 44 drives the upper roller 42 with a larger wheel diameter to switch to the supporting ground. At this time, the bottom of the upper roller 42 corresponds to the position of the heavy-duty roller 23. Under the action of the automatically rolling upper roller 42, the entire device travels and rolls on the road surface.

[0058] In actual operation, it is preferable to use a reversible motor for the hub motor 45 to achieve reciprocating rolling of a specific area during operation.

[0059] A motor bracket 441 is fixedly connected between the aforementioned drive motors 44, and the motor bracket 441 is fixedly installed on the inner side of the frame 1 through a connecting column 442.

[0060] Example 3

[0061] like Figure 1-4As shown, this embodiment, based on the structure of embodiment 1, installs sensor mechanisms 5 on the outer side wall of the frame 1 according to existing methods. The sensor structure enables monitoring of the roller-pressed road surface. Specifically, the sensor mechanism 5 includes a sensor mounting bracket 51 fixedly mounted on the frame 1 (the inner end of the sensor mounting bracket 51 is fixedly connected to a hanging arm 53 fixedly mounted on the frame 1). Several sensors 52, such as temperature sensors and level sensors, are mounted on the sensor mounting bracket 51. During operation, the sensors monitor the roller-pressed road surface.

[0062] Of course, the above description is not intended to limit the present utility model, and the present utility model is not limited to the examples given above. Any changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present utility model should also fall within the protection scope of the present utility model.

Claims

1. A thin-layer asphalt pavement compaction device, characterized in that, It includes frames on both sides, with light and heavy roller pressing mechanisms installed at both ends of the frames; The light and heavy roller pressing mechanism includes adjustable rotating frames at both ends, which are rotatably connected to the frame; The adjusting frame is equipped with a light pressure roller structure and a heavy pressure roller structure. The light and heavy roller pressing mechanism also includes a motor that drives the adjusting frame to rotate. Under the drive of the motor, the light pressure roller structure and the heavy pressure roller structure are switched to press onto the asphalt pavement. The frame is equipped with several adjusting roller mechanisms that cooperate with the light and heavy roller pressing mechanisms; during the switching between the light and heavy roller pressing structures, the adjusting roller mechanisms switch to use rollers of different sizes.

2. The thin-layer asphalt pavement compaction device according to claim 1, characterized in that, The left and right ends of the frame are respectively fixedly connected to end brackets, and the adjustable rotating frame is rotatably connected to the end brackets through a rotating shaft. A motor bracket is fixedly connected to the bottom of one side of the bracket, and the motor is fixedly mounted on the motor bracket.

3. The thin-layer asphalt pavement compaction device according to claim 1, characterized in that, The longitudinal cross-sectional shape of the adjusting frame is triangular.

4. The thin-layer asphalt pavement compaction device according to claim 3, characterized in that, The light pressure roller structure includes a pair of light pressure rollers that are rotatably connected to both sides of the lower end of the adjusting frame; The heavy-duty roller structure includes a heavy-duty roller rotatably connected to the upper end of the adjusting frame.

5. The thin-layer asphalt pavement compaction device according to claim 4, characterized in that, The diameter of the heavy-duty roller is larger than that of the light-duty roller; the weight of the heavy-duty roller is greater than that of the light-duty roller.

6. The thin-layer asphalt pavement compaction device according to claim 5, characterized in that, A pair of adjusting rollers spaced apart on the left and right are respectively mounted on the frame; The adjusting roller mechanism includes a wheel seat rotatably connected to the frame; The upper end of the wheel seat is equipped with an upper roller that mates with the heavy-duty roller, and the lower end of the wheel seat is equipped with a lower roller that mates with the light-duty roller; the diameter of the upper roller is larger than that of the lower roller. The adjusting roller mechanism also includes a drive motor installed inside the frame, which switches between the upper and lower rollers to support the rollers rolling onto the ground.

7. The thin-layer asphalt pavement compaction device according to claim 6, characterized in that, The output shaft of the drive motor is fixedly connected to the wheel seat; The drive motors are fixedly connected by motor brackets, which are fixedly installed on the inner side of the frame via connecting columns.

8. The thin-layer asphalt pavement compaction device according to claim 4, characterized in that, Several pressure rollers that cooperate with light pressure rollers are rotatably connected between the frames.

9. The thin-layer asphalt pavement compaction device according to claim 1, characterized in that, Sensor mechanisms are installed on the outer walls of the frame.

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