Asphalt spraying device

Abstract

The utility model discloses an asphalt spraying device, which solves the technical problem that the sprayed emulsified asphalt is difficult to flatten due to the fact that the existing asphalt sprayer depends on a roller. The asphalt spraying device comprises a stirring barrel internally provided with a stirring mechanism, the bottom of the stirring barrel is connected with a draw-off pump, an outlet of the draw-off pump is connected with a discharging box, the discharging box is in a cuboid shape, and an opening of the discharging box is perpendicular to the advancing direction of the asphalt spraying device. And an adjusting plate for adjusting the size of the opening is arranged at the opening. And by arranging the draw-off pump, the draw-off pump can draw the stirred asphalt through the conveying cylinder, and the asphalt is evenly laid in a designated area through the discharging box and the adjusting plate. According to the technical scheme provided by the utility model, the falling thickness of asphalt can be controlled by arranging the adjusting plate capable of performing inclined movement, the thickness of each part is uniform and consistent, and the asphalt can be better and conveniently discharged in a limited manner by arranging the baffle plate.

Description

Technical Field

[0001] The utility model relates to the technical field of asphalt pavement construction devices, in particular to an asphalt spraying device. Background Art

[0002] Asphalt is a complex, dark brown mixture of hydrocarbons of varying molecular weights and their non-metallic derivatives. It's a highly viscous organic liquid commonly used in highway construction. During highway construction, the asphalt is first stirred and then evenly sprayed onto a designated area using a spraying device. After spraying, the asphalt is subsequently compacted using a compactor to achieve a smooth road surface.

[0003] An asphalt spraying device in the prior art, such as an asphalt sprayer disclosed in a utility model patent with an authorization announcement date of 2024.02.23 and an authorization announcement number of CN220521015U, includes a base plate and a movable rod, a driving motor is installed in the middle of the bottom end of the base plate, and the front end of the driving motor is connected to pulley 1, a transmission belt is provided on the outside of pulley 1, and a pulley 2 is provided at one end of the transmission belt, a wheel axle is provided inside pulley 2, a bearing is installed at the top of the wheel axle, and a driving wheel is connected to the front and rear ends of the wheel axle, the movable rod is installed on one side of the base plate, a handle is provided on the top of the movable rod, and a button is provided on one side of the handle.

[0004] In the technical solution disclosed in the above utility model patent, after the device sprays emulsified asphalt on the road, as the device moves, the roller will contact the emulsified asphalt and roll it flat and evenly, avoiding the situation where some areas cannot be sprayed; the demulsifier is continuously extracted from the demulsifier tank by a water pump and sprayed on the surface of the emulsified asphalt after spraying and rolling through the nozzle, thereby accelerating the demulsification and hardening of the emulsified asphalt, avoiding the impact of people and equipment trampling and rolling on the spraying effect. Although the device can evenly compact the sprayed emulsified asphalt, a small amount of accumulation will occur after the asphalt is laid in the designated area, which is easy to affect the compaction effect of the subsequent compaction components on the emulsified asphalt. It is easy to produce a situation where there is more emulsified asphalt in the center and less emulsified asphalt on the periphery when the emulsified asphalt is laid, and it is difficult to achieve even distribution by roller rolling alone.

[0005] It should be noted that the above technical information is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or suggestion in any form that the above technical information constitutes prior art already known to those skilled in the art. Utility Model Content

[0006] In view of the deficiencies in the above-mentioned background technology, the present invention proposes an asphalt spraying device, which solves the technical problem that the existing asphalt sprayer relies on a roller and is difficult to spread the sprayed emulsified asphalt.

[0007] The technical solution of this application is:

[0008] An asphalt spraying device includes a mixing drum equipped with a stirring mechanism. An extraction pump is connected to the bottom of the mixing drum, and the outlet of the extraction pump is connected to a discharge box. The discharge box is rectangular, with an opening perpendicular to the direction of travel of the asphalt spraying device and an adjustment plate provided at the opening for adjusting the opening size. The extraction pump extracts the stirred asphalt through a transfer cylinder, and the asphalt is evenly spread over a designated area via the discharge box and the adjustment plate.

[0009] On the basis of the above technical solution, as a preferred embodiment of the asphalt spraying device, the upper end of the adjustment plate is hingedly connected to the opening, and an electric push rod is hingedly connected between the lower end and the discharge box. By setting the electric push rod, the electric push rod can push the adjustment plate to perform tilting movement through the second mounting block, thereby controlling the asphalt discharge thickness.

[0010] On the basis of the above technical solution, as a preferred embodiment of the asphalt spraying device, the outer surface of the discharge box is connected to two connecting plates, the bottom surface of the connecting plate is connected to a first mounting block, and the two first mounting blocks are hinged to an electric push rod, and the outer surface of the adjustment plate is connected to two second mounting blocks, and the second mounting blocks are hinged to the output end of the electric push rod.

[0011] On the basis of the above technical solution, as a preferred embodiment of the asphalt spraying device, the bottom surface of the discharge box is connected with a baffle, and the baffle is arranged parallel to the opening and located on the rear side of the opening. By setting the baffle, it is possible to better facilitate the limited discharge of asphalt, thereby making it easier for the compacting component to compact the asphalt.

[0012] On the basis of the above technical solution, as a preferred embodiment of the asphalt spraying device, the stirring mechanism includes a cover plate located on the top of the mixing barrel, the cover plate is clamped with the upper port of the mixing barrel, the cover plate is connected to a rotating motor, the output shaft of the rotating motor passes through the cover plate and is connected to a rotating rod, and the rotating rod is connected to a stirring blade assembly.

[0013] On the basis of the above technical solution, as a preferred embodiment of the asphalt spraying device, the stirring blade assembly includes a first fixed ring and a second fixed ring connected to the outer surface of the rotating rod, the outer surface of the first fixed ring is fixedly connected to a circular array of propulsion stirring blades, and the outer surface of the second fixed ring is connected to a circular array of stirring rods.

[0014] On the basis of the above technical solution, as a preferred embodiment of the asphalt spraying device, one first fixing ring is provided and is located at the lower end of the rotating rod, and two second fixing rings are provided and are arranged at intervals in the middle position of the rotating rod.

[0015] On the basis of the above technical solution, as a preferred embodiment of the asphalt spraying device, a feed barrel is connected to one side of the mixing barrel, and two handles are connected to the outer surface of the cover plate. By setting the feed barrel, it is easier to pour the asphalt raw material into the mixing barrel, thereby facilitating the mixing and fusion of the asphalt and the material.

[0016] Based on the above technical solution, as a preferred embodiment of the asphalt spraying device, a circular array of mixing barrels is provided at the bottom of the mixing barrel. The bottoms of the support legs are fixedly connected to the upper surface of the vehicle deck via foot pads. The discharge box is located at the rear of the vehicle deck, and the extraction pump is located between the mounting positions of the mixing barrels and the discharge box on the vehicle deck. The provision of support legs can better support and stabilize the mixing barrel and the stirring mechanism, and the provision of foot pads can further enhance the stability of the mixing barrel on the vehicle deck.

[0017] Based on the above technical solution, as a preferred embodiment of the asphalt spraying device, two mounting frames are connected to the bottom surface of the vehicle plate, and the mounting frames are rotatably connected to compacting wheels, the length of which is greater than the length of the opening. The provision of the mounting frames can better facilitate the installation of the compacting wheels, and the compacting wheels can facilitate the compaction operation of the paved asphalt. Two push plates are fixedly connected to the end of the top surface of the vehicle plate away from the discharge box, and an anti-slip push rod is connected between the two push plates. The provision of the push plates can better facilitate the pushing and steering operations of the entire device.

[0018] Compared with the prior art, the technical solution provided by the present invention has the following beneficial effects:

[0019] 1. The utility model is provided with a rotating motor, and the output shaft of the rotating motor drives the rotating rod to rotate. When the rotating rod rotates, it drives the propulsion stirring blade and the stirring rod to rotate through the first fixed ring and the second fixed ring, thereby achieving the stirring of the asphalt raw materials. In addition, the setting of the propulsion stirring blade can push the asphalt raw materials at the bottom to the upper part of the mixing barrel for stirring and fusion, thereby greatly improving the uniform stirring of the asphalt and greatly improving the fusion efficiency, avoiding the insufficient stirring of the asphalt raw materials affecting the road paving work, and the asphalt can be extracted and discharged by the extraction pump, and then the asphalt is evenly sprayed to the designated area for paving through the discharge box and the adjustment plate.

[0020] 2. The utility model provides a feed barrel, which can better facilitate the pouring of asphalt raw materials into the mixing barrel, thereby facilitating the mixing and fusing of the asphalt and the material; provides support legs, which can better support and stabilize the mixing barrel and the mixing mechanism; provides a mounting frame, which can better facilitate the installation of the compacting wheel, and the compacting wheel can facilitate the compaction operation of the paved asphalt; provides a push plate, which can better facilitate the pushing and steering of the entire device; provides an electric push rod, which can push the adjustment plate to perform tilting movement through the second mounting block, thereby controlling the falling thickness of the asphalt, and making the thickness uniform everywhere; provides a baffle, which can better facilitate the limited discharge of asphalt. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 Schematic diagram of the three-dimensional structure of the asphalt spraying device Figure 1 ;

[0023] Figure 2 Schematic diagram of the three-dimensional structure of the asphalt spraying device Figure 2 ;

[0024] Figure 3 It is a schematic diagram of the three-dimensional structure of the stirring mechanism in the asphalt spraying device;

[0025] Figure 4 for Figure 1 A local enlarged schematic diagram of point A in the middle.

[0026] Explanation of the accompanying numbers: 1-mixing barrel, 2-mixing mechanism, 201-cover plate, 202-rotating motor, 203-rotating rod, 204-first fixed ring, 205-propelling mixing blade, 206-second fixed ring, 207-mixing rod, 208-extraction pump, 209-transmission cylinder, 2010-discharge box, 2011-adjustment plate, 3-feed cylinder, 4-handle, 5-car plate, 6-support leg, 7-foot pad, 8-mounting frame, 9-compacting wheel, 10-push plate, 11-anti-slip push rod, 12-connecting plate, 13-first mounting block, 14-electric push rod, 15-second mounting block, 16-baffle. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the core concept of the present invention and the following embodiments, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The present application provides these embodiments to make this application thorough and complete, and to fully express the scope of this application to those skilled in the art. It should be noted that: unless otherwise specifically stated, the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values ​​set forth in these embodiments should be interpreted as merely exemplary, and not as limiting.

[0029] It should be noted that, in the description of this application, unless otherwise specified, "several" means greater than or equal to two; the terms "upper," "lower," "left," "right," "inner," "outer," "axial," "radial," and the like, indicating orientations or positional relationships, are intended solely to facilitate the description of this application and simplify the description, and do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this application. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0030] In addition, the terms "first," "second," and similar terms used in this application do not denote any order, quantity, or importance, but are simply used to distinguish different parts. "Perpendicular" does not mean perpendicular in the strict sense, but rather means within the tolerance range. "Parallel" does not mean parallel in the strict sense, but rather means within the tolerance range. "Include" or "comprising" and similar terms mean that the elements preceding the word include the elements listed after the word, and do not exclude the possibility of other elements being included.

[0031] It should also be noted that in the description of this application, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances. When a specific device is described as being located between a first device and a second device, there may or may not be an intermediate device between the specific device and the first device or the second device.

[0032] All terms used in this application have the same meaning as understood by one of ordinary skill in the art to which this application belongs, unless otherwise specifically defined. It should also be understood that terms defined in, for example, common dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant technology and should not be interpreted in an idealized or highly formal sense, unless explicitly defined as such herein.

[0033] Technologies, methods, and equipment known to ordinary technicians in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods, and equipment should be considered part of the specification.

[0034] See also Figure 1-Figure 4 This embodiment proposes an asphalt spraying device, including a mixing barrel 1. A stirring mechanism 2 is provided inside the mixing barrel 1. The stirring mechanism 2 includes a cover plate 201 located above the mixing barrel 1, and the bottom surface of the cover plate 201 is snap-fitted to the upper surface of the mixing barrel 1. A rotating motor 202 is fixedly connected to the upper surface of the cover plate 201. The output shaft of the rotating motor 202 passes through the upper surface of the cover plate 201 and is fixedly connected to a rotating rod 203.

[0035] refer to Figure 3 The setting of the cover plate 201 can not only be snap-fitted and installed with the mixing barrel 1, but also can facilitate the removal of components such as the rotating motor 202 and the rotating rod 203, thereby facilitating the inspection and replacement of the stirring components. In addition, the setting of the rotating motor 202 can drive the rotating rod 203 to rotate when the rotating motor 202 is powered on, thereby driving the subsequent stirring components to stir and fuse the asphalt raw materials through the rotating rod 203, thereby facilitating the spraying and paving of the asphalt, greatly improving the work efficiency of the staff, and eliminating the need to complete the asphalt production before spraying and paving.

[0036] The outer surface of the mixing barrel 1 is fixedly connected to a feed barrel 3, and the outer surface of the cover plate 201 is fixedly connected to two handles 4. By setting the feed barrel 3, it is easier to pour the asphalt raw material into the mixing barrel 1, thereby facilitating the mixing and fusion of the asphalt and the material. The setting of the handle 4 can facilitate the removal of the stirring device, thereby carrying out maintenance of the device.

[0037] A vehicle plate 5 is provided at the lower part of the mixing barrel 1. The bottom surface of the mixing barrel 1 is fixedly connected to a circular array of support legs 6, and the lower ends of the support legs 6 are fixedly connected to foot pads 7. The bottom surface of each foot pad 7 is fixedly connected to the upper surface of the vehicle plate 5. By setting the support legs 6, the mixing barrel 1 and the stirring mechanism 2 can be better supported and stabilized, and by setting the foot pads 7, the stability of the mixing barrel 1 on the vehicle plate 5 can be further improved.

[0038] The upper surface of the vehicle plate 5 is fixedly connected to an extraction pump 208, and the input end of the extraction pump 208 is fixedly connected to a transmission cylinder 209, and the end of the transmission cylinder 209 away from the extraction pump 208 is fixedly connected to the bottom surface of the mixing barrel 1, and the output end of the extraction pump 208 is fixedly connected to a discharge box 2010, and the outer surface of the discharge box 2010 is fixedly connected to the outer surface of the vehicle plate 5, and the outer surface of the discharge box 2010 is rotatably connected to an adjustment plate 2011. By setting the extraction pump 208, the extraction pump 208 can extract the stirred asphalt through the transmission cylinder 209, and then transfer the asphalt to the discharge box 2010, and the asphalt is evenly laid in the designated area through the discharge box 2010 and the adjustment plate 2011.

[0039] Two mounting frames 8 are fixedly connected to the bottom surface of the vehicle plate 5, and the inner wall of the mounting frame 8 is rotatably connected to a compacting wheel 9. By setting the mounting frame 8, the compacting wheel 9 can be more conveniently installed, and the compacting wheel 9 can facilitate the compaction operation of the paved asphalt, and the compacting wheel 9 can be driven by a self-installed drive device.

[0040] The outer surface of the rotating rod 203 is fixedly connected to a first fixed ring 204, and the outer surface of the first fixed ring 204 is fixedly connected to a circular array of propulsion stirring blades 205. The outer surface of the rotating rod 203 is fixedly connected to two second fixed rings 206, and the outer surface of the second fixed ring 206 is fixedly connected to a circular array of stirring rods 207.

[0041] refer to Figure 3 The setting of the first fixed ring 204 can better facilitate the inspection and replacement of the propulsion stirring blade 205, and the first fixed ring 204 can better drive the propulsion stirring blade 205 to rotate under the drive of the rotating rod 203, so that the propulsion stirring blade 205 can push the asphalt raw material at the bottom of the mixing barrel 1 upward while stirring, thereby turning the asphalt raw material, and then stirring and fusing the asphalt raw material through the stirring rod 207, greatly improving the efficiency of stirring and fusing the asphalt raw material and reducing the workload of the staff.

[0042] Two push plates 10 are fixedly connected to the upper surface of the vehicle plate 5, and a non-slip push rod 11 is fixedly connected to the side of the two push plates 10 that are close to each other. By setting the push plates 10, it is possible to better facilitate the pushing and steering operations of the entire device. By setting the non-slip push rod 11, it is possible to better facilitate the staff to push the entire device under force.

[0043] The outer surface of the discharge box 2010 is fixedly connected to two connecting plates 12, and the bottom surface of the connecting plate 12 is fixedly connected to a first mounting block 13. The inner walls of the two first mounting blocks 13 are hinged with an electric push rod 14. The outer surface of the adjustment plate 2011 is fixedly connected to two second mounting blocks 15, and the inner wall of the second mounting block 15 is hinged to the output end of the electric push rod 14. By setting the electric push rod 14, the electric push rod 14 can push the adjustment plate 2011 to perform tilting movement through the second mounting block 15, thereby controlling the falling of asphalt and the amount of asphalt falling, thereby paving the amount of asphalt according to demand.

[0044] The bottom surface of the discharge box 2010 is fixedly connected with a baffle 16. By setting the baffle 16, the asphalt can be better discharged in a limited manner to prevent the asphalt from splashing to the rear of the compacting component during discharge, thereby making it easier for the compacting component to compact the asphalt.

[0045] Working principle: When spraying asphalt, first pour the asphalt raw material into the mixing barrel 1 through the feeding barrel 3, and then start the rotating motor 202. The output shaft of the rotating motor 202 drives the rotating rod 203 to rotate. When the rotating rod 203 rotates, it drives the first fixed ring 204 and the second fixed ring 206 to rotate synchronously, so that the first fixed ring 204 drives the propulsion stirring blade 205 to rotate, so that the propulsion stirring blade 205 pushes the asphalt raw material at the bottom of the mixing barrel 1 to the upper part of the mixing barrel 1, and stirs and turns it, and then the second fixed ring 206 can drive the stirring rod 207 to stir the asphalt raw material, which is convenient for asphalt. The green raw materials are quickly and evenly blended. After the fusion is completed, the extraction pump 208 is started, and the extraction pump 208 extracts the asphalt in the mixing barrel 1 through the transmission cylinder 209, and then transmits the asphalt to the discharge box 2010. Before this, the adjustment plate 2011 is pushed into the discharge box 2010 by starting the electric push rod 14, and the asphalt can be blocked. After the asphalt is transmitted, the asphalt is first stored in a certain amount and covers the adjustable discharge groove between the column discharge box 2010 and the adjustment plate 2011. By starting the electric push rod 14 again to pull the adjustment plate 2011, the asphalt can be evenly dropped to the designated area.

[0046] The above content shows and describes the basic principles, main features and beneficial effects of the present invention. The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of protection of the present invention.

Claims

1. An asphalt spraying device, characterized in that: The invention comprises a mixing barrel (1) provided with a mixing mechanism (2), the bottom of the mixing barrel (1) being connected to an extraction pump (208), the outlet of the extraction pump (208) being connected to a discharge box (2010), the discharge box (2010) being in the shape of a rectangular parallelepiped, the opening of the discharge box (2010) being perpendicular to the direction of travel of the asphalt spraying device, and an adjustment plate (211) for adjusting the size of the opening being provided at the opening.

2. The asphalt spraying device according to claim 1, characterized in that: The upper end of the adjustment plate (2011) is hingedly connected to the opening, and an electric push rod (14) is hingedly connected between the lower end and the discharge box (2010).

3. The asphalt spraying device according to claim 2, characterized in that: The outer surface of the discharge box (2010) is connected to two connecting plates (12), the bottom surface of the connecting plate (12) is connected to a first mounting block (13), and the two first mounting blocks (13) are both hinged to an electric push rod (14). The outer surface of the adjustment plate (2011) is connected to two second mounting blocks (15), and the second mounting blocks (15) are hinged to the output end of the electric push rod (14).

4. The asphalt spraying device according to claim 2 or 3, characterized in that: The bottom surface of the discharge box (2010) is connected to a baffle (16), and the baffle (16) is arranged parallel to the opening and is located at the rear side of the opening.

5. The asphalt spraying device according to claim 4, characterized in that: The stirring mechanism (2) comprises a cover plate (201) located on the top of the stirring barrel (1), the cover plate (201) being engaged with the upper end of the stirring barrel (1), the cover plate (201) being connected to a rotating motor (202), an output shaft of the rotating motor (202) passing through the cover plate (201) and being connected to a rotating rod (203), and the rotating rod (203) being connected to a stirring blade assembly.

6. The asphalt spraying device according to claim 5, characterized in that: The stirring blade assembly comprises a first fixed ring (204) and a second fixed ring (206) connected to the outer surface of the rotating rod (203); the outer surface of the first fixed ring (204) is fixedly connected to a circular array of propulsion-type stirring blades (205); and the outer surface of the second fixed ring (206) is connected to a circular array of stirring rods (207).

7. The asphalt spraying device according to claim 6, characterized in that: One first fixing ring (204) is provided and is located at the lower end of the rotating rod (203), and two second fixing rings (206) are provided and are arranged at intervals in the middle position of the rotating rod (203).

8. The asphalt spraying device according to any one of claims 5 to 7, characterized in that: A feeding cylinder (3) is connected to one side of the mixing barrel (1), and two handles (4) are connected to the outer surface of the cover plate (201).

9. The asphalt spraying device according to claim 8, characterized in that: The bottom of the mixing barrel (1) is provided with a ring-shaped array of support legs (6), the bottom of the support legs (6) is fixedly connected to the upper surface of the vehicle plate (5) through a foot pad (7), the discharge box (2010) is provided at the rear of the vehicle plate (5), and the extraction pump (208) is located between the mounting position of the mixing barrel (1) and the mounting position of the discharge box (2010) on the vehicle plate (5).

10. The asphalt spraying device according to claim 9, characterized in that: The bottom surface of the vehicle plate (5) is connected to two mounting frames (8), and the mounting frames (8) are rotatably connected to compacting wheels (9), the length of the compacting wheels (9) being greater than the length of the opening. The top surface of the vehicle plate (5) is fixedly connected to one end away from the discharge box (2010) with two push plates (10), and an anti-slip push rod (11) is connected between the two push plates (10).

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