High-viscosity and high-elasticity modified emulsified asphalt stirrer for construction of cold-mixed and cold-laid ultrathin wearing layer

Abstract

The utility model provides a high-viscosity and high-elasticity modified emulsified asphalt stirrer for cold-mixing and cold-paving ultrathin wearing layer construction, which relates to the technical field of stirrers and comprises a stirring disc body, a stirring shaft is rotatably connected in the stirring disc body, a stirring frame is mounted on the stirring shaft, two groups of driving guide rails are arranged on the upper side and the lower side of the stirring frame in parallel, and the driving guide rails are connected with the stirring disc body. A driving guide rail is installed on the upper side of the stirring disc body, a stirring assembly is installed on the driving guide rail in a sliding mode, a driving mechanism is installed on the upper side of the stirring disc body and comprises a driving motor, an eccentric crankshaft and a plurality of driving swing rods, the stirring assembly comprises a driving sliding block, a stirring rod and a plurality of stirring blades, and the driving swing rods are pivoted between the eccentric crankshaft and the driving sliding block. The driving sliding block is installed on the driving guide rail in a sliding mode. The stirring radius of the stirring assembly can be changed by rotating the driving motor, so that the asphalt stirring uniformity is improved.

Description

Technical Field

[0001] This utility model relates to the field of mixer technology, specifically to a high-viscosity, high-elasticity modified emulsified asphalt mixer for cold-mixing and cold-laying ultra-thin abrasive layer construction. Background Technology

[0002] High-viscosity, high-elasticity modified emulsified asphalt for cold-mix abrasion course construction is a type of abrasion course material specifically designed for construction in normal or low-temperature environments. It combines high-viscosity, high-elasticity modified asphalt with an emulsifier to form a cold-mix asphalt mixture that can be mixed and laid at normal temperatures.

[0003] High-viscosity and high-elasticity abrasive asphalt typically has high flow resistance and poor fluidity. Traditional fixed mixing paddles have high mixing torque and can cause internal and external stratification, resulting in uneven mixing. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this invention provides a high-viscosity, high-elasticity modified emulsified asphalt mixer for cold-mix and cold-lay ultra-thin abrasive layer construction, which solves the problems mentioned in the background technology.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A high-viscosity, high-elasticity modified emulsified asphalt mixer for cold-mix and cold-lay ultra-thin wearing course construction includes a mixing disc body. A mixing shaft is rotatably connected to the inner part of the mixing disc body. A mixing motor is connected to the lower end of the mixing shaft. A mixing frame is installed on the mixing shaft. Two sets of drive guide rails are arranged parallel to each other on the upper and lower sides of the mixing frame. A mixing component is slidably installed on the drive guide rails. A support frame is welded and fixed to the top of the mixing disc. A drive mechanism is installed on the support frame. The drive mechanism includes a drive motor, an eccentric crankshaft, and several drive swing rods. The drive motor is fixed to the support frame. The eccentric crankshaft is connected to the output end of the drive motor. The two ends of the drive swing rods are respectively pivotally connected to the eccentric crankshaft and the mixing component.

[0009] Preferably, the stirring assembly includes a driving slider that is slidably mounted on the upper and lower driving guide rails respectively, a stirring rod connected between the two driving sliders and a plurality of stirring blades fixed on the stirring rod, a driving shaft fixed on the upper driving slider, and the outer end of the driving rocker arm pivotally connected to the driving shaft.

[0010] Preferably, the eccentric crankshaft includes two eccentric discs and an eccentric shaft connecting the two eccentric discs. The inner end of the drive rocker arm is pivotally connected to the eccentric shaft. A connecting bearing is fixed on the stirring frame and the support frame. The two eccentric discs are fixedly connected to the inner ring of the connecting bearing.

[0011] Preferably, the stirring blade is configured as an arc-shaped blade, and the two ends of the arc-shaped blade are provided with slit arc surfaces.

[0012] Preferably, the stirring frame includes two sets of connecting inner rings, a sliding outer ring, and stirring blades. The connecting inner rings are fixed on the stirring shaft, and the sliding outer rings are concentrically sleeved on the outside of the connecting inner rings. A plurality of driving guide rails are connected between the connecting inner rings and the sliding outer rings. A plurality of stirring blades are vertically connected between the upper and lower sliding outer rings, and the stirring blades slide against the inner wall of the stirring disc.

[0013] (III) Beneficial Effects

[0014] This invention provides a high-viscosity, high-elasticity modified emulsified asphalt mixer for cold-mix, cold-lay, ultra-thin wearing course construction. It offers the following advantages:

[0015] 1. In this utility model, the rotation of the mixing motor can drive the mixing frame to rotate within the mixing pan via the mixing shaft, thereby achieving the mixing of high-viscosity and high-elasticity modified emulsified asphalt for cold-laid ultra-thin wear layer construction within the mixing pan. Simultaneously, the rotation of the driving motor can cause the eccentric crankshaft to rotate, which in turn drives the swing arm to push the mixing components to move in and out of the mixing pan, thereby changing the mixing radius of the mixing blades, avoiding stratification during asphalt mixing, and improving the uniformity of mixing.

[0016] 2. The drive lever centrally connected to the eccentric shaft in this utility model causes the mixing components to be in different positions on the drive guide rail and to move back and forth alternately. This keeps the different mixing components at different mixing radii, creating internal and external disturbances to the asphalt mixing, increasing the disorder of the mixing, and making the mixing uniformity higher. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of a high-viscosity, high-elasticity modified emulsified asphalt mixer for cold-mixed and cold-laid ultra-thin abrasive layer construction according to this utility model;

[0018] Figure 2 This is a cross-sectional view of the stirrer in this utility model;

[0019] Figure 3 This is a schematic diagram of the drive mechanism in this utility model.

[0020] In the diagram: 1. Mixing disc; 2. Support frame; 3. Mixing shaft; 4. Mixing motor; 5. Mixing frame; 51. Connecting inner ring; 52. Sliding outer ring; 53. Mixing scraper; 6. Drive guide rail; 7. Drive slider; 8. Mixing rod; 9. Mixing blade; 10. Drive motor; 11. Eccentric crankshaft; 12. Drive rocker arm. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model embodiment provides a high-viscosity, high-elasticity modified emulsified asphalt mixer for cold-mix, cold-lay, ultra-thin abrasive layer construction, such as... Figure 1-3 As shown, the system includes a mixing disc body 1 with an open top. A support frame 2 is welded and fixed to the top of the mixing disc body for observing the mixing process. A mixing shaft 3 is rotatably connected to the center of the mixing disc body 1. A mixing motor 4 is connected to the lower end of the mixing shaft 3 and is fixed to the lower end of the mixing disc body 1. A mixing frame 5 is mounted on the mixing shaft 3. The rotation of the driving motor can drive the mixing frame 5 to rotate within the mixing disc body 1 via the mixing shaft 3. The mixing frame 5 includes two sets of connecting inner rings 51, sliding outer rings 52, and mixing scrapers 53. The connecting inner rings 51 are fixed to the mixing shaft 3. The sliding outer rings 52 are concentrically fitted outside the connecting inner rings 51. Several mixing scrapers 53 are vertically connected between the upper and lower sliding outer rings 52. The mixing scrapers 53 slide against the inner wall of the mixing disc body 1. During the rotation of the mixing frame 5, the mixing scrapers 53 can scrape off the asphalt adhering to the inner wall of the mixing disc body 1.

[0023] A plurality of drive rails 6 are connected between the inner ring 51 and the outer sliding ring 52. A stirring assembly is slidably mounted on the drive rails 6. The stirring assembly includes drive sliders 7 slidably mounted on the upper and lower drive rails 6 respectively, a stirring rod 8 connected between two drive sliders 7, and a plurality of stirring blades 9 fixed on the stirring rod 8. The stirring blades 9 are set as arc-shaped blades 9, and the two ends of the arc-shaped blades 9 are provided with slit arc surfaces, which can push the asphalt to both sides during the stirring process, so that the asphalt can be turned over on both the inside and outside sides, and the asphalt can be stirred to different stirring radius areas.

[0024] A drive mechanism is installed on the support frame 2. The drive mechanism includes a drive motor 10, an eccentric crankshaft 11, and several drive rocker arms 12. The drive motor 10 is fixed on the support frame 2. The eccentric crankshaft 11 includes two eccentric discs and an eccentric shaft eccentrically connected between the two eccentric discs. The upper eccentric disc is fixed to the output end of the drive motor 10. The inner end of the drive rocker arm 12 is pivotally connected to the eccentric shaft. The drive shaft 11 is fixed on the upper drive slider 7. The outer end of the drive rocker arm 12 is pivotally connected to the drive shaft 11. The eccentric shaft can slide and connect to the drive guide rail 6 at different positions, that is, the stirring blade 9 is at different stirring radii. The upper side of the stirring frame 5 and the lower side of the support frame 2 are fixed with connecting bearings. The upper and lower eccentric discs are fixedly connected to the inner ring of the connecting bearings.

[0025] Working principle:

[0026] In this invention, the rotation of the stirring motor 4 can drive the stirring frame 5 to rotate circumferentially within the stirring pan 1 via the stirring shaft 3, thereby stirring the asphalt. During the stirring process, the drive motor 10 rotates, causing the eccentric crankshaft 11 to rotate circumferentially on the support frame 2. The change in position of the eccentric shaft during rotation will push the drive slider 7 to slide inward and outward on the drive guide rail 6. Several drive sliders 7 slide alternately on the drive guide rail 6, so that several stirring blades 9 are at different stirring radii during the stirring process. The asphalt is turned to both sides through the ends of the stirring blades 9 to the stirring areas where other stirring blades 9 are located, increasing the internal and external disturbance of the asphalt within the stirring pan 1, which can make the stirring more uniform.

[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 mixer for cold-mixed and cold-laid ultra-thin wearing course construction of high-viscosity and high-elasticity modified emulsified asphalt, comprising a mixing disc body, a mixing shaft rotatably connected inside the mixing disc, and a mixing motor connected to the lower end of the mixing shaft, characterized in that: A stirring frame is mounted on the stirring shaft. Two sets of drive rails are arranged parallel to each other on the upper and lower sides of the stirring frame. A stirring assembly is slidably mounted on the drive rails. A support frame is welded and fixed to the top of the stirring pan. A drive mechanism is mounted on the support frame. The drive mechanism includes a drive motor, an eccentric crankshaft, and several drive swing rods. The drive motor is fixed on the support frame. The eccentric crankshaft is connected to the output end of the drive motor. The two ends of the drive swing rods are respectively pivotally connected to the eccentric crankshaft and the stirring assembly.

2. The cold-mix, cold-lay, ultra-thin wearing course construction high-viscosity, high-elasticity modified emulsified asphalt mixer according to claim 1, characterized in that: The stirring assembly includes drive sliders that are slidably mounted on the upper and lower drive rails respectively, a stirring rod connected between the two drive sliders and several stirring blades fixed on the stirring rod, a drive shaft fixed on the upper drive slider, and the outer end of the drive rocker arm pivotally connected to the drive shaft.

3. The cold-mix, cold-lay, ultra-thin wearing course construction high-viscosity, high-elasticity modified emulsified asphalt mixer according to claim 2, characterized in that: The eccentric crankshaft includes two eccentric discs and an eccentric shaft connecting the two eccentric discs. The inner end of the drive rocker arm is pivotally connected to the eccentric shaft. A connecting bearing is fixed on the stirring frame and the support frame. The two eccentric discs are fixedly connected to the inner ring of the connecting bearing.

4. The cold-mix, cold-lay, ultra-thin wearing course construction high-viscosity, high-elasticity modified emulsified asphalt mixer according to claim 3, characterized in that: The stirring blade is configured as an arc-shaped blade, and the two ends of the arc-shaped blade are provided with slit arc surfaces.

5. The cold-mix, cold-lay, ultra-thin wearing course construction high-viscosity, high-elasticity modified emulsified asphalt mixer according to claim 4, characterized in that: The stirring frame includes two sets of connecting inner rings, a sliding outer ring, and stirring blades. The connecting inner rings are fixed on the stirring shaft, and the sliding outer rings are concentrically sleeved on the outside of the connecting inner rings. Several driving guides are connected between the connecting inner rings and the sliding outer rings. Several stirring blades are vertically connected between the upper and lower sliding outer rings, and the stirring blades slide against the inner wall of the stirring plate.

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