Asphalt stirring device for highway construction

Abstract

The utility model discloses an asphalt stirring device for highway construction, which comprises a base, moving wheels arranged at the bottom end of the base, a support seat arranged on the base, a support frame hinged on the support seat, an electric cylinder hinged between the support frame and the base and matched with the support frame, a stirring barrel arranged on the support frame, and a mounting shaft arranged at one end of the stirring barrel, the mounting shaft and the discharging pipe are both mounted on the supporting frame through bearings, the supporting frame is provided with a rotation driving structure matched with the stirring barrel, a stirring shaft is arranged in the stirring barrel, the stirring shaft is mounted in the mounting shaft through a bearing and extends outwards, and a stirring assembly is arranged on the stirring shaft. According to the multi-direction multi-angle asphalt stirring device disclosed by the utility model, multi-direction and multi-angle stirring during asphalt stirring can be realized, and the stirring effect and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of asphalt mixing technology, and more specifically, to an asphalt mixing device for highway construction. Background Technology

[0002] Asphalt is a black or dark brown viscous substance, primarily extracted from petroleum or natural bitumen deposits. It has wide applications in road construction, waterproofing materials, building materials, and coatings.

[0003] During highway construction, asphalt needs to be mixed. In the existing technology, a tank structure is mainly used, with a mixing component inside. However, the mixing mainly relies on the tumbling force of the mixing component, and the tank itself cannot drive the asphalt material to tumble. This results in low uniformity and efficiency of asphalt mixing during highway construction.

[0004] In addition, most existing asphalt mixing plants discharge material from the bottom, which requires the storage tanks used to store asphalt to be set relatively high, affecting the ease of use. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the problems existing in the prior art, this utility model provides an asphalt mixing device for highway construction, so as to solve the technical problems mentioned in the background art, such as poor mixing efficiency and inconvenient material discharge of the asphalt mixing device for highway construction.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] An asphalt mixing device for highway construction includes a base with casters at its bottom. A support seat is mounted on the base, and a support frame is hinged to the support seat. An electric cylinder is hinged between the support frame and the base. A mixing drum is mounted on the support frame. One end of the mixing drum has an installation shaft, and the other end has a discharge pipe. Both the installation shaft and the discharge pipe are mounted on the support frame via bearings. A rotation drive structure is mounted on the support frame in conjunction with the mixing drum. A mixing shaft is installed inside the mixing drum and extends outward from the installation shaft via bearings. A mixing assembly is mounted on the mixing shaft, and a mixing drive structure is mounted on the support frame in conjunction with the mixing shaft.

[0010] The present invention is further configured such that the mixing drive structure includes a mounting frame, the mounting frame is mounted on a support frame, and a mixing motor is mounted on the mounting frame. The mixing motor is connected to the mixing shaft for transmission. When the mixing motor is started, the mixing shaft can be rotated through the mixing motor, thereby driving the mixing component to rotate and realizing the mixing of asphalt in the mixing tank.

[0011] The present invention is further configured such that the stirring assembly includes a first stirring blade, which is a spiral blade and is symmetrically arranged on the stirring shaft. A second stirring blade is arranged in a reverse spiral on the outer side of the first stirring blade. When the stirring shaft rotates, it can drive the first stirring blade and the second stirring blade to rotate. In the present invention, the first stirring blade and the second stirring blade have a reverse spiral structure in the inner and outer and left and right. When working, the first stirring blade drives the asphalt near the center of the stirring shaft to rotate around the axis and pushes it axially from the inside to both sides. The second stirring blade drives the asphalt near the inner wall of the mixing tank to rotate around the axis and pushes it axially from both sides to the inside. With the double-layer structure, the second stirring blade gathers the asphalt from both sides to the center, and the first stirring blade transports the asphalt from the center to both sides, forming a convective mixing. This causes the asphalt to circulate and shear in the mixing tank, achieving rapid and uniform mixing of the asphalt in the mixing tank in a short time.

[0012] The present invention is further configured such that a stirring column is provided on the stirring shaft, and the first stirring blade and the second stirring blade are both fixed on the stirring column. The stirring shaft can drive the stirring column to rotate, which can enhance the stirring effect. At the same time, the stirring column can also be used to install the first stirring blade and the second stirring blade on the stirring shaft.

[0013] The present invention is further configured such that the rotation drive structure includes a rotation motor, the rotation motor is mounted on a support frame, the output end of the rotation motor is provided with a gear, and the outer wall of the mixing tank is provided with a rack, the gear meshing with the rack. When the rotation motor is started, the rotation of the gear can be controlled by the rotation motor, and the rotation of the mixing tank can be controlled by the meshing between the gear and the rack, thereby driving the asphalt located in the mixing tank to rotate.

[0014] The present invention is further provided with a scraper at the tail end of the mixing column. The outer end of the scraper is in contact with the inner wall of the mixing tank. When the mixing column rotates, it will drive the scraper to rotate. The scraper can scrape the inner wall of the mixing tank, thereby avoiding the asphalt material from adhering to the inner wall of the mixing tank.

[0015] The present invention is further configured such that the stirring shaft extends into the discharge pipe and is provided with spiral discharge blades, so that the discharge pipe tilts outward during discharge. In this way, the stirring shaft can drive the spiral discharge blades to rotate during discharge, and the spiral discharge blades can make the asphalt material in the mixing tank be discharged evenly and smoothly.

[0016] The present invention is further provided that each of the discharge pipes is equipped with a valve, which facilitates the control of the opening and closing of the discharge pipes.

[0017] (III) Beneficial Effects

[0018] Compared with the prior art, this utility model provides an asphalt mixing device for highway construction, which has the following beneficial effects:

[0019] 1. This utility model features a support frame mounted on a base, with the support frame hinged to the support seat for mounting the mixing drum. An electric cylinder is also hinged to the support frame. By controlling the extension and retraction of the electric cylinder, the support frame can rotate and adjust on the support seat. This rotation of the support frame, in turn, allows for the rotation of the mixing drum. During the asphalt mixing process, the asphalt automatically reciprocates and mixes with the rotation of the mixing drum, thereby improving the mixing effect and efficiency of the asphalt within the mixing drum.

[0020] 2. In this utility model, the mixing drum is mounted on a support frame via a mounting shaft and a discharge pipe in conjunction with bearings. A rotating motor, gears, and racks are also provided in conjunction with the mixing drum. When mixing asphalt, the rotating motor is activated, controlling the gears to rotate. The meshing between the gears and racks controls the mixing drum to rotate along the mounting shaft, thereby causing the asphalt inside the mixing drum to rotate. In combination with these functions, the mixing drum can be moved left and right and rotated, enhancing the mixing effect of the asphalt.

[0021] 3. This utility model mounts the mixing shaft carrying the mixing component bucket bearing inside the mounting shaft and extends outward to connect to the mixing motor. Thus, when the mixing bucket rotates, the mixing shaft does not rotate synchronously. Starting the mixing motor controls the rotation of the mixing shaft, which in turn drives the first and second tumbling blades to rotate, making the rotation direction of the mixing shaft opposite to that of the mixing bucket. This improves the tumbling effect of asphalt within the mixing bucket. In this utility model, the first and second tumbling blades have an anti-spiral structure both internally and externally, as well as left and right. During operation, the first tumbling blade drives the asphalt near the axis of the mixing shaft to rotate axially from the inside to both sides. The second tumbling blade drives the asphalt near the inner wall of the mixing bucket to rotate axially from both sides to the inside. This double-layer structure allows the second tumbling blade to gather asphalt from both sides to the center, while the first tumbling blade transports asphalt from the center to both sides, forming convective mixing. This results in convective circulation and shear mixing of the asphalt within the mixing bucket, achieving rapid and uniform mixing of asphalt within a short time. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of an asphalt mixing device for highway construction according to the present invention. Figure 1 ;

[0023] Figure 2 This is a schematic diagram of the overall structure of an asphalt mixing device for highway construction according to the present invention. Figure 2 ;

[0024] Figure 3 This is a cross-sectional view of the overall structure of this utility model;

[0025] Figure 4 This is a cross-sectional view of the internal structure of the mixing tank in this utility model;

[0026] Figure 5 This is a schematic diagram of the connection structure between the stirring shaft, stirring column, first stirring blade, second stirring blade and scraper in this utility model.

[0027] In the diagram: 1. Base; 2. Casters; 3. Support base; 4. Support frame; 5. Electric cylinder; 6. Mixing tank; 7. Mounting shaft; 8. Discharge pipe; 9. Mixing shaft; 10. Mounting frame; 11. Mixing motor; 12. First tumbling blade; 13. Second tumbling blade; 14. Mixing column; 15. Rotating motor; 16. Gear; 17. Rack; 18. Scraper; 19. Spiral discharge blade; 20. Valve. Detailed Implementation

[0028] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0029] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0030] In this utility model, unless otherwise stated, the orientations used, such as "up" and "down", usually refer to the direction shown in the accompanying drawings, or to the vertical, perpendicular, or gravitational direction; similarly, for ease of understanding and description, "left" and "right" usually refer to the left and right shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours of each component itself, but the above directional terms are not used to limit this utility model.

[0031] Please see Figures 1-5 An asphalt mixing device for highway construction includes a base 1, a movable wheel 2 at the bottom of the base 1, a support seat 3 on the base 1, a support frame 4 hinged on the support seat 3, and an electric cylinder 5 hinged between the support frame 4 and the base 1.

[0032] Here, the support base 3 can be installed on one side of the base 1 and the support frame 4, and the electric cylinder 5 can be hinged to the other side of the support frame 4 and the base 1.

[0033] Alternatively, the support base 3 can be installed in the middle of the base 1 as needed, and hinged electric cylinders 5 can be installed on both sides of the support base 3.

[0034] A mixing tank 6 is mounted on a support frame 4. One end of the mixing tank 6 is equipped with a mounting shaft 7, and the other end is equipped with a discharge pipe 8. Both the mounting shaft 7 and the discharge pipe 8 are mounted on the support frame 4 via bearings. A rotation drive structure is provided on the support frame 4 in conjunction with the mixing tank 6. A mixing shaft 9 is installed inside the mixing tank 6. The mixing shaft 9 is mounted inside the mounting shaft 7 via bearings and extends outward. A mixing component is provided on the mixing shaft 9. A mixing drive structure is provided on the support frame 4 in conjunction with the mixing shaft 9.

[0035] Please see Figures 1-5 As one embodiment of the mixing drive structure: the mixing drive structure includes a mounting frame 10, which is mounted on a support frame 4. A mixing motor 11 is provided on the mounting frame 10. The mixing motor 11 is connected to the mixing shaft 9. When the mixing motor 11 is started, the mixing shaft 9 can be controlled to rotate, thereby driving the mixing component to rotate and realizing the mixing of asphalt in the mixing tank 6.

[0036] Please see Figures 1-5As one embodiment of the mixing assembly: the mixing assembly includes a first stirring blade 12, which is a spiral blade and is symmetrically arranged on the stirring shaft 9. A second stirring blade 13 is spirally arranged in the opposite direction on the outer side of the first stirring blade 12. When the stirring shaft 9 rotates, it can drive the first stirring blade 12 and the second stirring blade 13 to rotate. In this utility model, the first stirring blade 12 and the second stirring blade 13 have an anti-spiral structure in the inner and outer and left and right directions. When working, the first stirring blade 12 drives the asphalt near the axis of the stirring shaft 9 to rotate around the axis and pushes it from the inside to both sides axially. The second stirring blade 13 drives the asphalt near the inner wall of the mixing tank 6 to rotate around the axis and pushes it from both sides to the inside axially. With the double-layer structure, the second stirring blade 13 gathers the asphalt from both sides to the center, and the first stirring blade 12 transports the asphalt from the center to both sides, forming convective mixing. This causes the asphalt to circulate and shear in the mixing tank 6, achieving rapid and uniform mixing of the asphalt in the mixing tank 6 in a short time.

[0037] Please see Figures 1-5 As one embodiment of the stirring shaft 9: a stirring column 14 is provided on the stirring shaft 9, and the first stirring blade 12 and the second stirring blade 13 are both fixed on the stirring column 14. The stirring shaft 9 can drive the stirring column 14 to rotate, which can enhance the stirring effect. At the same time, the first stirring blade 12 and the second stirring blade 13 can also be installed on the stirring shaft 9 through the stirring column 14.

[0038] Please see Figures 1-5 As one embodiment of the rotation drive structure: the rotation drive structure includes a rotation motor 15, which is mounted on the support frame 4. A gear 16 is provided at the output end of the rotation motor 15, and a rack 17 is provided on the outer wall of the mixing tank 6. The gear 16 meshes with the rack 17. When the rotation motor 15 is started, the rotation of the gear 16 can be controlled by the rotation motor 15. The rotation of the mixing tank 6 can be controlled by the meshing between the gear 16 and the rack 17, thereby driving the asphalt inside the mixing tank 6 to rotate.

[0039] Please see Figures 1-5 As one embodiment of the mixing column 14: a scraper 18 is provided at the tail end of the mixing column 14. The outer end of the scraper 18 is in contact with the inner wall of the mixing tank 6. When the mixing column 14 rotates, it will drive the scraper 18 to rotate. The scraper 18 can scrape the inner wall of the mixing tank 6, thereby avoiding the asphalt material from adhering to the inner wall of the mixing tank 6.

[0040] Please see Figures 1-5As one embodiment of the mixing shaft 9: the mixing shaft 9 extends into the discharge pipe 8 and is provided with a spiral discharge blade 19. During discharge, the discharge pipe 8 is tilted outward. In this way, during discharge, the mixing shaft 9 can drive the spiral discharge blade 19 to rotate. Through the spiral discharge blade 19, the asphalt material in the mixing tank 6 can be discharged evenly and smoothly.

[0041] Please see Figures 1-5 As one implementation method for the discharge pipe 8: valves 20 are provided on the discharge pipe 8, and the valves 20 facilitate the control of the opening and closing of the discharge pipe 8.

[0042] In summary:

[0043] In use, the extension and retraction of the electric cylinder 5 can be controlled to rotate and adjust the support frame 4 on the support base 3. Thus, the rotation and adjustment of the support frame 4 can realize the rotation and adjustment of the mixing tank 6. In this way, during the mixing process of asphalt, the asphalt can be automatically and repeatedly mixed as the mixing tank 6 rotates, thereby improving the mixing effect and efficiency of asphalt in the mixing tank 6.

[0044] In this invention, the mixing drum 6 is mounted on the support frame 4 via the mounting shaft 7 and the discharge pipe 8 in cooperation with the bearing. The mixing drum 6 is equipped with a rotating motor 15, a gear 16, and a rack 17 that cooperate with each other. When mixing asphalt, the rotating motor 15 is started, which controls the rotation of the gear 16. The meshing between the gear 16 and the rack 17 controls the rotation of the mixing drum 6 along the axis of the mounting shaft 7, thereby driving the asphalt inside the mixing drum 6 to rotate. In this way, in conjunction with the above functions, the mixing drum 6 can be made to sway left and right and rotate itself, thereby enhancing the mixing effect of the asphalt.

[0045] This invention mounts the mixing shaft 9, carrying the mixing assembly bucket bearing, inside the mounting shaft 7 and extends outward to connect to the mixing motor 11. This way, when the mixing bucket 6 rotates, the mixing shaft 9 does not rotate synchronously. Starting the mixing motor 11 controls the rotation of the mixing shaft 9. When the mixing shaft 9 rotates, it drives the first agitator blade 12 and the second agitator blade 13 to rotate, so that the rotation direction of the mixing shaft 9 is opposite to the rotation direction of the mixing bucket 6. This improves the agitation effect of the asphalt within the mixing bucket 6. In this invention, the first agitator blade 12 and the second agitator blade 13... The inner and outer sides, as well as the left and right sides, are in a counter-spiral structure. During operation, the first stirring blade 12 drives the asphalt near the center of the stirring shaft 9 to rotate around the axis, pushing it axially from the inside to both sides. The second stirring blade 13 drives the asphalt near the inner wall of the mixing tank 6 to rotate around the axis, pushing it axially from both sides to the inside. With the double-layer structure, the second stirring blade 13 gathers the asphalt from both sides to the center, while the first stirring blade 12 transports the asphalt from the center to both sides, forming a convective mixing. This causes the asphalt to circulate and shear within the mixing tank 6, achieving rapid and uniform mixing of the asphalt within a short time.

[0046] In all the solutions mentioned above, the connection between two components can be selected according to the actual situation, such as welding, bolt and nut connection, bolt or screw connection, or other known connection methods, which will not be elaborated here. For all the fixed connections mentioned above, welding is preferred. Although the embodiments of this utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of this utility model. The scope of this utility model is defined by the appended claims and their equivalents.

[0047] In all the solutions mentioned above, those involving the operation of electrical components, unless otherwise specified, are controlled by a controller. Since the devices matched with the controllers are common devices, their control principles and circuit connections are existing, well-known, and mature technologies, and their specific circuit structures will not be described in detail here.

[0048] Of all the solutions mentioned above, those involving motors can be combined with reducers if necessary. The connection structure and working principle between the motor and the reducer are existing known technologies, and this utility model will not elaborate on them.

[0049] Of all the solutions mentioned above, those involving the connection between solar panels and batteries can be equipped with essential accessories such as inverters, battery charging controllers, cables, fuses, and brackets. Their control principles and circuit connections are all existing, well-known, and mature technologies, and their specific circuit structures will not be elaborated here.

Claims

1. An asphalt mixing device for highway construction, comprising a base (1), wherein the bottom end of the base (1) is provided with a movable wheel (2), characterized in that: A support base (3) is provided on the base (1), and a support frame (4) is hinged on the support base (3). An electric cylinder (5) is hinged between the support frame (4) and the base (1). A stirring tank (6) is provided on the support frame (4). A mounting shaft (7) is provided at one end of the stirring tank (6), and a discharge pipe (8) is provided at the other end. The mounting shaft (7) and the discharge pipe (8) are both mounted on the support frame (4) through bearings. A rotation drive structure is provided on the support frame (4) in conjunction with the stirring tank (6). A stirring shaft (9) is provided inside the stirring tank (6). The stirring shaft (9) is mounted inside the mounting shaft (7) through bearings and extends outward. A stirring assembly is provided on the stirring shaft (9). A stirring drive structure is provided on the support frame (4) in conjunction with the stirring shaft (9).

2. The asphalt mixing plant for highway construction according to claim 1, characterized in that: The stirring drive structure includes a mounting frame (10), which is mounted on a support frame (4). A stirring motor (11) is mounted on the mounting frame (10), and the stirring motor (11) is connected to the stirring shaft (9) via a transmission.

3. The asphalt mixing plant for highway construction according to claim 1, characterized in that: The stirring assembly includes a first stirring blade (12), which is a spiral blade and is symmetrically arranged on the stirring shaft (9). A second stirring blade (13) is spirally arranged in the opposite direction on the outer side of the first stirring blade (12).

4. The asphalt mixing plant for highway construction according to claim 3, characterized in that: The stirring shaft (9) is provided with a stirring column (14), and the first stirring blade (12) and the second stirring blade (13) are both fixed on the stirring column (14).

5. An asphalt mixing plant for highway construction according to claim 1, characterized in that: The rotation drive structure includes a rotation motor (15), which is mounted on a support frame (4). The output end of the rotation motor (15) is provided with a gear (16), and a rack (17) is provided on the outer wall of the mixing tank (6). The gear (16) meshes with the rack (17).

6. An asphalt mixing plant for highway construction according to claim 4, characterized in that: The tail end of the stirring column (14) is provided with a scraper (18), and the outer end of the scraper (18) is in contact with the inner wall of the stirring tank (6).

7. An asphalt mixing plant for highway construction according to any one of claims 1-6, characterized in that: The stirring shaft (9) extends into the discharge pipe (8) and is equipped with spiral discharge blades (19).

8. An asphalt mixing plant for highway construction according to claim 1, characterized in that: Each of the discharge pipes (8) is equipped with a valve (20).

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