A spraying device for asphalt concrete construction

Abstract

The utility model relates to the technical field of asphalt concrete construction, concretely is a kind of spraying device of asphalt concrete construction.The device includes spraying pipe, fixedly connected on the spraying head of spraying pipe, the spraying pipe is rotatably connected on fixed plate, the fixed plate is provided for the drive assembly of changing the driving angle of spraying pipe;Fixedly connected feed pipe on the spraying pipe, rotatablely connected feed pipe on the feed pipe, the feed pipe is rotatably connected on fixed plate.The device can change the working width of spraying mechanism, within a certain range, can be applicable to different width road section, to further improve the practicability of the device.

Description

Technical Field

[0001] This utility model relates to the field of asphalt concrete construction technology, specifically to a spraying device for asphalt concrete construction. Background Technology

[0002] An asphalt spraying machine is a machine that evenly sprays liquid asphalt onto a gravel layer to construct asphalt roads. Self-propelled asphalt spraying machines have all their components mounted on a truck chassis; these are called asphalt spraying trucks. Towed asphalt spraying machines have all their components mounted on a trailer and are mostly small. The spraying system consists of a circulation pipe, a small three-way valve, and spray pipes with nozzles. The circulation pipe is a relatively thick longitudinal and transverse pipe connecting the asphalt tank and the spray pipes. The spray pipes are located at the lower rear of the machine. After the asphalt pump draws liquid asphalt from the asphalt tank, the asphalt can either return to the asphalt tank for circulation and heating, or be delivered to the spray pipes for spraying, depending on the position of the three-way valve. Before spraying, the burner should be extinguished, and the width, height, and angle of each nozzle of the spray pipe should be adjusted according to the construction requirements. Then, spraying should be carried out while driving. The spraying system is equipped with a handheld spray gun for repairing potholes or missed areas. After work is completed, the asphalt tank and spray pipes should be drained of any remaining asphalt and rinsed clean with solvent.

[0003] However, the spray pipe in existing spraying systems is usually a straight pipe. When spraying narrower roads, the length of the spray pipe cannot be changed, and the spraying system cannot enter the road section. The width of the spraying system exceeds the width of the road, resulting in spraying outside the road surface and causing waste. The working width of the spraying system cannot be adjusted according to the width of the road surface, which reduces the practicality of the spraying system. Utility Model Content

[0004] To address the problems of the prior art, this utility model provides a spraying device for asphalt concrete construction, which can change the working width of the spraying mechanism and is applicable to road sections of different widths within a certain range, thereby improving the practicality of the device.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a spraying device for asphalt concrete construction, comprising a spraying pipe and a spraying head fixedly connected to the spraying pipe, wherein the spraying pipe is rotatably connected to a fixed plate, and a driving component for changing the tilt angle of the spraying pipe is provided on the fixed plate; a feed pipe is fixedly connected to the spraying pipe, and a feeding pipe is rotatably connected to the feed pipe, and the feed pipe is rotatably connected to the fixed plate.

[0006] With the above structural design, after the spray pipe rotates, the spray pipe tilts, and the lateral distance between the two ends of the spray pipe becomes smaller, which changes the working width of the spray pipe. Within a certain range, it can be applied to road sections of different widths, thereby improving the practicality of this device.

[0007] Preferably, the drive assembly includes a half gear fixedly connected to the spray pipe, a drive gear constantly meshing with the half gear, and a drive motor drivingly connected to the drive gear. The drive gear is rotatably connected to the fixed plate, and the drive motor is fixedly connected to the fixed plate.

[0008] The above structural design utilizes a gear structure to drive the spray pipe to rotate, making it more convenient and labor-saving.

[0009] Preferably, the inlet of the feed pipe is fixedly connected to the lower end of the rotary joint, and the upper end of the rotary joint is fixedly connected to the feed pipe.

[0010] With the above structural design, the feed pipe does not need to rotate. When the spray pipe rotates, it ensures that the fluid can be smoothly discharged through the rotary joint while preventing any leakage.

[0011] Preferably, a retaining ring is fixedly connected to the feed pipe, and the retaining ring is in contact with the upper surface of the fixing plate.

[0012] The above structural design prevents the spray pipe from falling off the fixed plate.

[0013] Preferably, a sliding column is fixedly connected to the spray pipe, a groove matching the sliding column is provided on the fixing plate, a bearing plate is fixedly connected to the upper end of the sliding column, and a fixing plate is sandwiched between the bearing plate and the spray pipe.

[0014] By adopting the above structural design, the connection between the spray pipe and the fixed plate is increased to prevent the spray pipe from falling off the fixed plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This device can change the working width of the spraying mechanism, and within a certain range, it can be applied to road sections of different widths, thereby improving the practicality of the device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the present invention from the left side. Detailed Implementation

[0020] Please see Figure 1 , Figure 2 , Figure 3This utility model provides a technical solution: a spraying device for asphalt concrete construction, including a spraying pipe 1 and spraying heads 2 fixedly connected to the spraying pipe 1. Multiple spraying heads 2 are provided and are equally spaced along the length of the spraying pipe 1. The spraying pipe 1 is rotatably connected to a fixed plate 4. The fixed plate 4 is provided with a driving component for changing the tilt angle of the spraying pipe 1. A feed pipe 3 is fixedly connected to the spraying pipe 1 and is fixedly connected to the middle position of the spraying pipe 1. A feeding pipe 9 is rotatably connected to the feed pipe 3 and is rotatably connected to the fixed plate 4.

[0021] The drive assembly includes a half gear 51 fixedly connected to the spray pipe 1, a drive gear 52 constantly meshing with the half gear, and a drive motor 53 drivingly connected to the drive gear 52. The drive gear 52 is located at the head or tail end of the half gear 51. The drive gear 52 is rotatably connected to the fixed plate 4, and the drive motor 53 is fixedly connected to the fixed plate 4. The drive motor 53 is a reversible motor. When the construction section narrows, the worker starts the drive motor 53, which drives the drive gear 52 to rotate. The half gear 51 meshing with the drive gear 52 then rotates, and the spray pipe 1 rotates by a certain angle. The straight-line distance between the two ends of the spray pipe 1 becomes shorter, and thus the working width of the spray pipe 1 becomes narrower.

[0022] To prevent the sprayed material from splashing onto the half gear 51 and the drive gear 52, a semi-circular baffle 59 is provided below the half gear 51 and the drive gear 52. The baffle 59 is fixedly connected to the spray pipe 1, and the center of the baffle 59 is on the same axis as the center of the half gear 51.

[0023] The inlet of the feed pipe 3 is fixedly connected to the lower end of the rotary joint 6, and the upper end of the rotary joint 6 is fixedly connected to the feed pipe 9. The rotary joint 6 is a pipe rotary joint, whose main function is to transfer fluid media (whether gas or liquid) from a stationary pipe to a rotating component, ensuring smooth fluid discharge through the rotary joint while preventing any leakage. In this embodiment, the feed pipe 9 is used to connect to the asphalt spraying machine. The feed pipe 9 is stationary, while the feed pipe 3 rotates with the spray pipe 1. The feed pipe 3 is connected to the feed pipe 9 via the rotary joint 6 to deliver material to the spray pipe 1.

[0024] A retaining ring 31 is fixedly connected to the feed pipe 3, and the retaining ring 31 is in contact with the upper surface of the fixing plate 4.

[0025] A sliding column 71 is fixedly connected to the spray pipe 1. A sliding groove 72 matching the sliding column 71 is provided on the fixing plate 4. A bearing plate 73 is fixedly connected to the upper end of the sliding column 71. A fixing plate 4 is sandwiched between the bearing plate 73 and the spray pipe 1.

[0026] In this embodiment, in order to protect the components on the device, a protective shell 101 is fixedly connected to the fixing plate 4.

[0027] In this embodiment, in order to facilitate the installation of the fixing plate 4, a support column is fixedly connected to the fixing plate 4, and a flange 102 is fixedly connected to the upper end of the support column.

[0028] To facilitate the rotation of the spray pipe 1, lubricating oil is applied between the retaining ring 31 and the fixing plate 4, between the bearing plate 73 and the fixing plate 4, and on the sliding column 71.

[0029] Working principle: When the construction section narrows, the staff starts the drive motor 53. The drive motor 53 rotates in the forward direction, which drives the drive gear 52 to rotate. The half gear 51, which meshes with the drive gear 52, then rotates, and the spray pipe 1 rotates at a certain angle. The straight distance between the two ends of the spray pipe 1 becomes shorter, and the working width of the spray pipe 1 becomes narrower. When the construction section widens again, the drive motor 53 rotates in the reverse direction, and the spray pipe 1 returns to its original state.

[0030] The structures, proportions, and sizes illustrated in the accompanying drawings are merely for illustrative purposes and to aid those skilled in the art in understanding and reading the content disclosed herein. They are not intended to limit the scope of this utility model and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this utility model, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this utility model's implementation.

[0031] The present invention has been described above with reference to preferred embodiments, but the scope of protection of the present invention is not limited thereto. All technical solutions falling within the scope of the claims are within the scope of protection of the present invention. Various modifications can be made to the present invention, and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the various technical features mentioned in the various embodiments can be combined in any way.

Claims

1. A spraying device for asphalt concrete construction, comprising a spraying pipe (1) and a spraying head (2) fixedly connected to the spraying pipe (1), characterized in that: The spray pipe (1) is rotatably connected to the fixed plate (4), and the fixed plate (4) is provided with a drive assembly for changing the tilt angle of the spray pipe (1); the feed pipe (3) is fixedly connected to the spray pipe (1), and the feed pipe (9) is rotatably connected to the feed pipe (3), and the feed pipe (3) is rotatably connected to the fixed plate (4).

2. The spraying device for asphalt concrete construction according to claim 1, characterized in that: The drive assembly includes a half gear (51) fixedly connected to the spray pipe (1), a drive gear (52) constantly meshing with the half gear, and a drive motor (53) drivingly connected to the drive gear (52). The drive gear (52) is rotatably connected to the fixed plate (4), and the drive motor (53) is fixedly connected to the fixed plate (4).

3. The spraying device for asphalt concrete construction according to claim 1, characterized in that: The inlet of the feed pipe (3) is fixedly connected to the lower end of the rotary joint (6), and the upper end of the rotary joint (6) is fixedly connected to the feed pipe (9).

4. The spraying device for asphalt concrete construction according to claim 1, characterized in that: A retaining ring (31) is fixedly connected to the feed pipe (3), and the retaining ring (31) is in contact with the upper surface of the fixing plate (4).

5. A spraying device for asphalt concrete construction according to any one of claims 1 to 4, characterized in that: A sliding column (71) is fixedly connected to the spray pipe (1), and a sliding groove (72) matching the sliding column (71) is provided on the fixing plate (4). A bearing plate (73) is fixedly connected to the upper end of the sliding column (71), and a fixing plate (4) is sandwiched between the bearing plate (73) and the spray pipe (1).

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