A uniform mixing device for asphalt paving mixture

Abstract

The utility model discloses a kind of asphalt paving mixed material uniform mixing device, including caterpillar truck, material box is installed in the right side of caterpillar truck, and material box is fixedly installed with discharging assembly in the bottom, and material box is communicated with discharging assembly, the inside of material box is provided with first stirring assembly, second stirring assembly is also arranged in material box, first stirring assembly and second stirring assembly are driven by first transmission assembly, first stirring assembly includes the first rotating shaft of horizontal arrangement, the utility model relates to asphalt processing technical field.The asphalt paving mixed material uniform mixing device is driven by first rotating shaft by being provided with first stirring assembly and second stirring assembly, and preliminary stirring is carried out to mixed material using stirring vane, and secondary stirring is carried out to mixed material by second rotating shaft driving stirring arm and stirring block, to effectively avoid the segregation phenomenon of mixed material in conveying process, ensure that mixed material is evenly distributed.

Description

Technical Field

[0001] This utility model relates to the field of asphalt processing technology, specifically to a uniform mixing device for asphalt paving. Background Technology

[0002] Asphalt paver is a construction equipment mainly used for paving various materials for base and surface layers on highways. The operation process of the paver is as follows: first, the dump truck unloads the mixture into the paver's hopper, then the paving device spreads the material laterally on the road surface, and then the asphalt mixture is evenly spread on the road base and initially compacted and leveled through steps such as tamping and leveling.

[0003] The patent publication number CN114481761B discloses an asphalt pavement paver for municipal engineering, which includes a frame body, a hopper, and a screed. Multiple wheels are respectively provided at both ends of the side of the frame body near the ground, and a track is provided at each end. Track rings are provided on the wheels. The tracks and wheels are used together for the movement of the paver. The hopper is fixed at one end of the frame body, and the screed is fixed at the end of the frame body away from the hopper. The screed is parallel to the ground and abuts against the ground. A spraying device is provided at the end of the frame body near the ground.

[0004] As shown in the above technology, the existing device does not involve a structure for pre-mixing or secondary mixing of the mixture. It only relies on the conveying component to deliver the material, which can easily lead to segregation of the mixture during the conveying process, thus adversely affecting the uniformity and density of the subsequent paving layer. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a uniform mixing device for asphalt paving, which solves the problem of uneven mixing in existing uniform mixing devices for asphalt paving.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A uniform mixing device for asphalt paving includes a tracked trolley, a material box is installed on the right side of the tracked trolley, and a discharge component is fixedly installed at the bottom of the material box, and the material box is connected to the discharge component. A first mixing component is provided inside the material box, and a second mixing component is also provided inside the material box. The first mixing component and the second mixing component are driven by a first transmission component. The first stirring assembly includes a horizontally arranged first rotating shaft. Both ends of the first rotating shaft are rotatably connected to the inner wall of the material box via bearings. Multiple sets of stirring blades are symmetrically fixed to the outer wall of the first rotating shaft along the axial direction. Each set of stirring blades is spirally distributed. One end of the first rotating shaft extends out of the material box. A drive motor is fixedly connected to the outer wall of the material box, and the output end of the drive motor is fixedly connected to one end of the first rotating shaft. The second stirring assembly includes a vertically arranged second rotating shaft, the top of which is connected to the first rotating shaft via a second transmission assembly, and multiple stirring arms are arranged axially at intervals on the outer wall of the second rotating shaft.

[0007] Preferably, the second transmission assembly includes a first bevel gear fixedly connected to the outer wall of the first rotating shaft, a second bevel gear fixedly connected to the top of the second rotating shaft, the first bevel gear and the second bevel gear meshing and transmitting power, a protective box fixedly connected between the front and back of the inner wall of the material box, and both the first bevel gear and the second bevel gear are inside the protective box, and the second rotating shaft is rotatably connected to the bottom of the inner cavity of the protective box through a bearing.

[0008] Preferably, the helix angle of the stirring blade is 30° to 45°, and the helix directions of two adjacent sets of stirring blades are opposite. The outer wall of the stirring blade is provided with a wear-resistant coating with a thickness of 0.5 mm to 1 mm. A stirring block is fixed to one end of each stirring arm away from the second rotating shaft, and the surface of the stirring block is provided with a groove.

[0009] Preferably, the material discharge assembly includes an outer casing, and a guide plate and a material distribution plate are provided in the inner cavity of the outer casing. The material distribution plate is inclined to the left and right sides, and two baffles are fixedly connected to the top of the material distribution plate. The material distribution plate has a first through groove and a second through groove at equal intervals inside, and the second through grooves are staggered to spread the flowing concrete evenly.

[0010] Preferably, the discharge assembly further includes a horizontally arranged third rotating shaft, the two ends of which are rotatably connected to the inner wall of the outer box via bearings, and multiple discharge plates are fixedly connected at equal intervals along the circumference of the surface of the third rotating shaft inside the outer box. The outer box is fixedly connected to and communicates with the bottom of the material box.

[0011] Preferably, the first transmission assembly includes a first pulley and a second pulley. The first pulley is fixedly connected to one end of the first rotating shaft that extends through to the left side of the material box, and the second pulley is fixedly connected to one end of the third rotating shaft that extends through to the left side of the outer box. The first pulley and the second pulley are connected by belt drive. Beneficial effects

[0012] This invention provides a uniform mixing device for asphalt paving. Compared with the prior art, it has the following advantages: 1. This asphalt paving mixture uniform mixing device has a first mixing component inside the material box and a second mixing component inside the material box. The first and second mixing components are driven by a first transmission component. By setting up the first and second mixing components, the first rotating shaft drives the mixing blades to perform initial mixing of the mixture, and the second rotating shaft drives the mixing arm and mixing block to perform secondary mixing of the mixture. This effectively avoids segregation of the mixture during transportation, ensures uniform distribution of the mixture, and improves the practicality of the device during use.

[0013] 2. The asphalt paving mixture uniform mixing device includes an outer box with a discharge component. The inner cavity of the outer box is equipped with a guide plate and a distribution plate. The distribution plate is inclined to the left and right sides. Two baffles are fixedly connected to the top of the distribution plate. By setting the distribution plate, the mixed material falls from the discharge chute in the distribution plate, thereby achieving uniform discharge and facilitating subsequent paving operations. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the appearance of the present utility model; Figure 2 This is a schematic diagram of the first stirring component, the second stirring component, and the discharge component of this utility model; Figure 3 This is a partial schematic diagram of the second transmission component of this utility model; Figure 4 This is a schematic diagram of the material discharge assembly of this utility model.

[0015] In the diagram: 1. Tracked trolley; 2. Material bin; 3. First mixing assembly; 31. First rotating shaft; 32. Mixing blades; 33. Drive motor; 4. Second mixing assembly; 41. Second rotating shaft; 42. Mixing block; 43. Groove; 5. Distributing plate; 51. Baffle; 52. First through groove; 53. Second through groove; 6. Discharge assembly; 61. Outer casing; 62. Third rotating shaft; 63. Discharge plate; 7. First transmission assembly; 71. First pulley; 72. Second pulley; 73. Belt; 8. Second transmission assembly; 81. Protective box; 82. First bevel gear; 83. Second bevel gear. Detailed Implementation

[0016] 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.

[0017] Please see Figures 1-4 The asphalt paving mixture homogenizing device offers two technical solutions: The first embodiment includes a tracked trolley 1, a material box 2 is installed on the right side of the tracked trolley 1, and a discharge component 6 is fixedly installed at the bottom of the material box 2. The material box 2 is connected to the discharge component 6. A first stirring component 3 is provided inside the material box 2, and a second stirring component 4 is also provided inside the material box 2. The first stirring component 3 and the second stirring component 4 are driven by a first transmission component 7. The first stirring assembly 3 includes a horizontally arranged first rotating shaft 31. Both ends of the first rotating shaft 31 are rotatably connected to the inner wall of the material box 2 through bearings. Multiple sets of stirring blades 32 are symmetrically fixed to the outer wall of the first rotating shaft 31 along the axial direction. Each set of stirring blades 32 is spirally distributed. One end of the first rotating shaft 31 extends out of the material box 2. A drive motor 33 is fixedly connected to the outer wall of the material box 2, and the output end of the drive motor 33 is fixedly connected to one end of the first rotating shaft 31. The second stirring assembly 4 includes a vertically arranged second rotating shaft 41. The top of the second rotating shaft 41 is connected to the first rotating shaft 31 via a second transmission assembly 8. Multiple stirring arms are arranged axially at intervals on the outer wall of the second rotating shaft 41.

[0018] The second transmission assembly 8 includes a first bevel gear 82 fixedly connected to the outer wall of the first rotating shaft 31, and a second bevel gear 83 fixedly connected to the top of the second rotating shaft 41. The first bevel gear 82 and the second bevel gear 83 mesh and drive each other. A protective box 81 is fixedly connected between the front and back sides of the inner wall of the material box 2, and both the first bevel gear 82 and the second bevel gear 83 are inside the protective box 81. The second rotating shaft 41 is rotatably connected to the bottom of the inner cavity of the protective box 81 through a bearing.

[0019] The helix angle of the stirring blade 32 is 30° to 45°, and the helix directions of two adjacent sets of stirring blades 32 are opposite. The outer wall of the stirring blade 32 is provided with a wear-resistant coating with a thickness of 0.5 mm to 1 mm. A stirring block 42 is fixedly connected to one end of each stirring arm away from the second rotating shaft 41. The surface of the stirring block 42 is provided with a groove 43.

[0020] By setting up a first stirring component 3 and a second stirring component 4, the first rotating shaft 31 drives the stirring blades 32 to perform preliminary stirring of the mixture, and the second rotating shaft 41 drives the stirring arm and stirring block 42 to perform secondary stirring of the mixture, thereby effectively avoiding segregation of the mixture during the conveying process, ensuring uniform distribution of the mixture, and improving the practicality of the device during use.

[0021] The second embodiment differs from the first embodiment in that the material discharge assembly 6 includes an outer casing 61, and a guide plate and a material distribution plate 5 are provided in the inner cavity of the outer casing 61. The material distribution plate 5 is inclined to the left and right sides, and two baffles 51 are fixedly connected to the top of the material distribution plate 5. The material distribution plate 5 has a first through groove 52 and a second through groove 53 opened at equal intervals inside, and the second through grooves 53 are staggered to spread the flowing concrete evenly.

[0022] The material discharge assembly 6 also includes a horizontally arranged third rotating shaft 62. Both ends of the third rotating shaft 62 are rotatably connected to the inner wall of the outer housing 61 through bearings. Multiple material discharge plates 63 are fixedly connected at equal intervals along the circumference on the surface of the third rotating shaft 62 inside the outer housing 61. The outer housing 61 is fixedly connected to and communicates with the bottom of the material box 2. A buffer cavity is formed between adjacent material discharge plates 62, and each buffer cavity has the same capacity.

[0023] The first transmission assembly 7 includes a first pulley 71 and a second pulley 72. The first pulley 71 is fixedly connected to the first rotating shaft 31, which passes through to the left end of the material box 2. The second pulley 72 is fixedly connected to the third rotating shaft 62, which passes through to the left end of the outer box 61. The first pulley 71 and the second pulley 72 are connected by a belt 73.

[0024] By setting up the distribution plate 5, the mixed material falls from the discharge chute in the distribution plate, thereby achieving uniform discharge and facilitating subsequent paving operations.

[0025] In use, the mixture is added to the material box 2, the drive motor 33 is started and drives the first rotating shaft 31 to rotate. The stirring blades 32 on the first rotating shaft 31 rotate accordingly and perform initial stirring of the mixture. The spiral angle of the stirring blades 32 is 30° to 45° and the outer wall is provided with a wear-resistant coating to ensure the initial stirring effect of the mixture in the material box 2. The first rotating shaft 31 transmits power to the second rotating shaft 41 through the second transmission component 8. The stirring arm and stirring block 42 on the second rotating shaft 41 perform secondary stirring of the mixture. The cross-sectional shape of the stirring block 42 is elliptical, which can effectively improve the uniformity of the mixture. After secondary stirring, the mixture falls onto the distribution plate 5. The distribution plate 5 is tilted to both sides, so that the mixture moves to both sides. A portion falls through the first channel 52 and another portion falls through the second channel 53. The mixture enters the cavity between the adjacent discharge plates 63. The third rotating shaft 62 rotates through the transmission of the first transmission component 7 and discharges the mixture in the cavity.

[0026] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A uniform mixing device for asphalt paving, comprising a tracked trolley (1), characterized in that: A material box (2) is installed on the right side of the tracked trolley (1), and a discharge assembly (6) is fixedly installed at the bottom of the material box (2). The material box (2) is connected to the discharge assembly (6). A first stirring assembly (3) is provided inside the material box (2), and a second stirring assembly (4) is also provided inside the material box (2). The first stirring assembly (3) and the second stirring assembly (4) are driven by a first transmission assembly (7). The first stirring assembly (3) includes a horizontally arranged first rotating shaft (31). Both ends of the first rotating shaft (31) are rotatably connected to the inner wall of the material box (2) through bearings. Multiple sets of stirring blades (32) are symmetrically fixed to the outer wall of the first rotating shaft (31) along the axial direction. Each set of stirring blades (32) is spirally distributed. One end of the first rotating shaft (31) extends out of the material box (2). A drive motor (33) is fixedly connected to the outer wall of the material box (2), and the output end of the drive motor (33) is fixedly connected to one end of the first rotating shaft (31). The second stirring assembly (4) includes a vertically arranged second rotating shaft (41). The top of the second rotating shaft (41) is driven by the first rotating shaft (31) through the second transmission assembly (8). Multiple stirring arms are arranged axially at intervals on the outer wall of the second rotating shaft (41).

2. The asphalt paving mixture uniform mixing device according to claim 1, characterized in that: The second transmission assembly (8) includes a first bevel gear (82) fixedly connected to the outer wall of the first rotating shaft (31), a second bevel gear (83) fixedly connected to the top of the second rotating shaft (41), the first bevel gear (82) and the second bevel gear (83) meshing and driving each other, a protective box (81) is fixedly connected between the front and back of the inner wall of the material box (2), and the first bevel gear (82) and the second bevel gear (83) are both inside the protective box (81), and the second rotating shaft (41) is rotatably connected to the bottom of the inner cavity of the protective box (81) through a bearing.

3. The asphalt paving mixture uniform mixing device according to claim 1, characterized in that: The helix angle of the stirring blade (32) is 30° to 45°, and the helix directions of two adjacent sets of stirring blades (32) are opposite. The outer wall of the stirring blade (32) is provided with a wear-resistant coating with a thickness of 0.5 mm to 1 mm. A stirring block (42) is fixedly connected to one end of each stirring arm away from the second rotating shaft (41). The surface of the stirring block (42) is provided with a groove (43).

4. The asphalt paving mixture uniform mixing device according to claim 1, characterized in that: The material discharge assembly (6) includes an outer box (61), and a guide plate and a material distribution plate (5) are provided in the inner cavity of the outer box (61). The material distribution plate (5) is inclined to the left and right sides. Two baffles (51) are fixedly connected to the top of the material distribution plate (5). The material distribution plate (5) has a first through groove (52) and a second through groove (53) opened at equal intervals inside. The second through groove (53) and the second through groove (53) are staggered to spread the flowing concrete evenly.

5. The asphalt paving mixture uniform mixing device according to claim 4, characterized in that: The discharge assembly (6) also includes a horizontally arranged third rotating shaft (62). Both ends of the third rotating shaft (62) are rotatably connected to the inner wall of the outer box (61) through bearings. Multiple discharge plates (63) are fixedly connected at equal intervals along the circumference on the surface of the third rotating shaft (62) inside the outer box (61). The outer box (61) is fixedly connected to and communicates with the bottom of the material box (2).

6. The asphalt paving mixture uniform mixing device according to claim 1, characterized in that: The first transmission assembly (7) includes a first pulley (71) and a second pulley (72). The first pulley (71) is fixedly connected to the first rotating shaft (31) through to one end of the left side of the material box (2). The second pulley (72) is fixedly connected to the third rotating shaft (62) through to one end of the left side of the outer box (61). The first pulley (71) and the second pulley (72) are connected by a belt (73).

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