CN115434216B - Asphalt paving defoaming method - Google Patents
Asphalt paving defoaming method Download PDFInfo
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- CN115434216B CN115434216B CN202011475595.8A CN202011475595A CN115434216B CN 115434216 B CN115434216 B CN 115434216B CN 202011475595 A CN202011475595 A CN 202011475595A CN 115434216 B CN115434216 B CN 115434216B
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- asphalt
- defoaming
- electrothermal
- roller
- paving
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- 239000010426 asphalt Substances 0.000 title claims abstract description 389
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000007246 mechanism Effects 0.000 claims abstract description 56
- 238000003860 storage Methods 0.000 claims abstract description 35
- 238000005485 electric heating Methods 0.000 claims abstract description 11
- 238000011049 filling Methods 0.000 claims abstract description 6
- 238000001125 extrusion Methods 0.000 claims description 86
- 238000010276 construction Methods 0.000 claims description 34
- 230000005540 biological transmission Effects 0.000 claims description 14
- 230000002093 peripheral effect Effects 0.000 claims description 13
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 241001131688 Coracias garrulus Species 0.000 description 165
- 230000000694 effects Effects 0.000 description 49
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- 230000005484 gravity Effects 0.000 description 12
- 239000003638 chemical reducing agent Substances 0.000 description 10
- 239000003973 paint Substances 0.000 description 7
- 230000007704 transition Effects 0.000 description 7
- 238000010438 heat treatment Methods 0.000 description 6
- 238000005056 compaction Methods 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000012546 transfer Methods 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
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- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
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- 238000007789 sealing Methods 0.000 description 2
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 description 2
- 238000005054 agglomeration Methods 0.000 description 1
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Classifications
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/48—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ
- E01C19/488—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for laying-down the materials and consolidating them, or finishing the surface, e.g. slip forms therefor, forming kerbs or gutters in a continuous operation in situ with rollers for consolidating or finishing combined with tamping, vibrating, pressing or smoothing consolidation or finishing means
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01C—CONSTRUCTION OF, OR SURFACES FOR, ROADS, SPORTS GROUNDS, OR THE LIKE; MACHINES OR AUXILIARY TOOLS FOR CONSTRUCTION OR REPAIR
- E01C19/00—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving
- E01C19/12—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials
- E01C19/16—Machines, tools or auxiliary devices for preparing or distributing paving materials, for working the placed materials, or for forming, consolidating, or finishing the paving for distributing granular or liquid materials for applying or spreading liquid materials, e.g. bitumen slurries
Abstract
The invention discloses an asphalt paving and defoaming method, which is carried out by adopting an asphalt paving and defoaming integrated machine, wherein the asphalt paving and defoaming integrated machine comprises a frame, a wheel assembly is arranged at the bottom end of the frame, an asphalt storage barrel, a wheel driving piece and a defoaming driving piece are arranged on the frame, an asphalt paving mechanism and an electric heating defoaming mechanism are respectively arranged at two ends of the frame, the wheel driving piece is connected with the wheel assembly, the asphalt storage barrel is connected with the asphalt paving mechanism, and the defoaming driving piece is connected with the electric heating defoaming mechanism; the asphalt paving defoaming method comprises the following steps: 1. the asphalt paving mechanism is used for paving asphalt; 2. defoaming by an electric heating defoaming mechanism; 3. compacting and filling asphalt by an electrothermal defoaming mechanism; the invention has the beneficial effects that: asphalt paving and defoaming can be performed simultaneously, so that the manpower requirement is reduced, the production cost is reduced, the production efficiency is improved, asphalt is hardly attached to the electric heating defoaming mechanism, and the practicability and the durability are good.
Description
Technical Field
The invention relates to the technical field of road construction, in particular to an asphalt paving defoaming method.
Background
Asphalt is a blackish brown complex mixture composed of hydrocarbon compounds with different molecular weights and nonmetallic derivatives thereof, is a high-viscosity organic liquid, is mostly in the form of liquid or semisolid petroleum, has black surface, can be dissolved in carbon disulfide and carbon tetrachloride, is a waterproof, dampproof and anticorrosive organic cementing material, is mainly used in industries such as paint, plastic, rubber and the like and paved road surfaces and the like, but because air is mixed in the asphalt, air bubbles can be formed on the surface of the asphalt after the asphalt is paved on a construction surface, the paving quality of the asphalt is affected, the paving aesthetic property is affected, and the traditional defoaming mode is to press the air bubbles in the asphalt out by manually adopting a hanging plate after the asphalt is paved, so that the defoaming effect is achieved, a large amount of manpower is consumed, and the construction efficiency is low.
The prior art CN111622476A discloses a self-leveling cement multifunctional construction vehicle, which comprises a main body structure, wherein a feeding mechanism and a defoaming mechanism are arranged on the main body structure, and the paving and defoaming method of the construction vehicle comprises the following steps: the blocking plate is moved away to enable the mixture to fall into the ground through the storage vat, and the defoaming roller rotates clockwise to prick the ground, so that air in the mixture can be discharged; the stirring frame rotates to stir the mixture in the storage vat to prevent the mixture from agglomerating, the method can reduce the labor intensity of workers and improve the self-flowing tiling efficiency although frequent replacement of construction props is not needed, but by adopting the defoaming method, asphalt can be gradually adhered to the defoaming roller after the service time of the defoaming mechanism is long, gaps between the needle insertion are filled, the defoaming roller is difficult to clean and cannot play a role in defoaming, and the defoaming effect of the defoaming mechanism is poor and the practicability and the durability are low.
Disclosure of Invention
In order to solve the technical problems, the invention aims to provide an asphalt paving and defoaming method, which is carried out by adopting an asphalt paving and defoaming integrated machine and comprises the steps of paving asphalt, defoaming and compacting and filling.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows:
the asphalt paving and defoaming method is carried out by adopting an asphalt paving and defoaming integrated machine, wherein the asphalt paving and defoaming integrated machine comprises a frame, the bottom end of the frame is provided with a wheel assembly, the frame is provided with an asphalt storage barrel, a wheel driving piece and a defoaming driving piece, the wheel driving piece is connected with the wheel assembly, one end of the frame is provided with an asphalt paving mechanism, the asphalt storage barrel is connected with the asphalt paving mechanism, the other end of the frame is provided with an electric heating defoaming mechanism, and the defoaming driving piece is connected with the electric heating defoaming mechanism;
the asphalt paving defoaming method comprises the following steps:
step 1: paving asphalt: the wheel driving piece drives the wheel assembly to work so as to drive the asphalt paving and defoaming integrated machine to move, and the asphalt paving mechanism paves asphalt on a construction surface;
step 2: defoaming: the electrothermal defoaming mechanism eliminates bubbles in asphalt;
step 3: compacting and filling: the electrothermal defoaming mechanism applies pressure to compact asphalt and fills up pits generated on the surface of the asphalt after defoaming.
Preferably, the electrothermal defoaming mechanism comprises a first connecting rod, a second connecting rod, an electrothermal defoaming roller and an electrothermal smooth roller, wherein one end of the first connecting rod is hinged with the frame, the other end of the first connecting rod is hinged with one end of the second connecting rod, the electrothermal defoaming roller is rotatably connected with one end of the second connecting rod, the electrothermal smooth roller is rotatably connected with the other end of the second connecting rod, the other end of the second connecting rod is far away from the asphalt paving mechanism relative to one end of the second connecting rod, the defoaming driving piece is connected with the electrothermal defoaming roller, the electrothermal defoaming roller is in transmission connection with the electrothermal smooth roller, the wheel driving piece drives the wheel assembly to work so as to drive the asphalt paving and defoaming all-in-one machine to walk on a construction surface, when the electrothermal defoaming roller and the electrothermal roller pass through asphalt paved on the construction surface, the electrothermal defoaming roller and the electrothermal smooth roller are rotatably connected with one another, the electrothermal roller applies downward pressure on the smooth surface under the action of gravity, the defoaming driving piece drives the defoaming roller to the electrothermal smooth surface, the defoaming roller is also driven by the defoaming roller to generate heat to completely crack the asphalt, the electrothermal roller is completely and the thermal expansion roller is rotated to the electrothermal roller, the thermal expansion is completely generates heat by the thermal expansion of the asphalt after the thermal expansion roller is completely heated by the thermal expansion of the asphalt, and the electrothermal smooth roller can fill up pits of asphalt generated by defoaming, so that the asphalt paving effect is improved, according to the characteristics of the asphalt, the higher the temperature of the asphalt is, the better the fluidity of the asphalt is, the lower the viscosity of the asphalt is, namely, the temperature of the asphalt is in direct proportion to the fluidity, the temperature of the asphalt is in inverse proportion to the viscosity, and even if asphalt is attached to the electrothermal defoaming roller and the electrothermal smooth roller, the electrothermal defoaming roller and the electrothermal smooth roller are higher in surface temperature and rotate at the electrothermal defoaming roller and the electrothermal smooth roller, and the asphalt is easy to separate from the electrothermal defoaming roller and the electrothermal smooth roller and cannot be accumulated on the electrothermal defoaming roller and the electrothermal smooth roller.
Preferably, the bottom of the frame is also provided with a hydraulic support rod, the push rod of the hydraulic support rod is vertically downward, the push rod of the hydraulic support rod is hinged with the first connecting rod, through the arrangement, when the asphalt paving and defoaming integrated machine is in a working state, the push rod of the hydraulic support rod moves downward to extend out, the first connecting rod is subjected to downward action, the downward acting force of the electric heating defoaming roller on asphalt is increased, so that the compaction capacity of the electric heating defoaming roller on asphalt is improved, air bubbles can be crushed in an auxiliary mode of extrusion, and the defoaming effect of the electric heating defoaming roller is improved.
Preferably, the bottom of the frame is further provided with a defoaming lifting cylinder, a piston rod of the defoaming lifting cylinder is vertically downward, the piston rod of the defoaming lifting cylinder is hinged to the first connecting rod, and through the arrangement, when the asphalt paving and defoaming integrated machine is not in a working state, the piston rod of the defoaming lifting cylinder moves upwards to shrink, so that the first connecting rod, the second connecting rod, the electrothermal defoaming roller and the electrothermal smooth roller are driven to lift upwards, the electrothermal defoaming roller and the electrothermal smooth roller are not in contact with a supporting surface, and damage to the electrothermal defoaming roller and the electrothermal smooth roller when the asphalt paving and defoaming integrated machine moves is avoided.
Preferably, the second connecting rod between the electrothermal defoaming roller and the electrothermal finishing roller is provided with a cutter holder, the cutter holder is provided with a first scraper and a second scraper, the first scraper is abutted against the peripheral wall of the electrothermal defoaming roller, the second scraper is abutted against the peripheral wall of the electrothermal finishing roller, through the arrangement, the first scraper can scrape asphalt attached to the peripheral wall of the electrothermal defoaming roller, the second scraper can scrape asphalt attached to the electrothermal finishing roller, the electrothermal defoaming roller and the electrothermal finishing roller are further ensured not to be attached to asphalt, the practicability and durability are further improved, along with the increase of the amount of asphalt accumulated on the first scraper and the second scraper, the electrothermal finishing roller is used for downwards dripping under the action of gravity, the electrothermal finishing roller is used for flattening and compacting the dripped asphalt, and the asphalt paving quality is ensured.
Preferably, the top of the asphalt storage barrel is provided with a feed inlet, the bottom of the asphalt storage barrel is provided with a discharge outlet, the asphalt paving mechanism comprises a feed pipe and an asphalt extrusion die head, the asphalt extrusion die head is connected with the frame, the asphalt extrusion die head is provided with an inlet and an outlet, one end of the feed pipe is connected with the discharge outlet of the asphalt storage barrel, the other end of the feed pipe is connected with the inlet of the asphalt extrusion die head, a stop block component is arranged in the outlet of the asphalt extrusion die head, asphalt is supplemented from the feed inlet at the top of the asphalt storage barrel to the asphalt storage barrel, asphalt in the asphalt storage barrel flows out from the discharge outlet under the guiding action of the feed pipe, when the asphalt is required to be paved, the stop block component opens the outlet of the asphalt extrusion die head, and asphalt flows out from the outlet of the asphalt extrusion die head and is paved on a construction surface under the action of gravity.
Preferably, the distance between the center of the outlet of the asphalt extrusion die head and the axis of the electrothermal defoaming roller along the horizontal direction is between 1 meter and 1.5 meters, by the arrangement, when asphalt is paved on a construction surface, bubbles are continuously generated, the asphalt is stable after a period of time, the bubbles are not continuously generated, the reasonable interval between the asphalt extrusion die head and the electrothermal defoaming roller is set, the defoaming effect of asphalt is ensured, and the paving quality of asphalt is ensured; if the distance between the center of the outlet of the asphalt extrusion die head and the axis of the electrothermal defoaming roller along the horizontal direction is smaller than 1 meter, the distance between the asphalt extrusion die head and the electrothermal defoaming roller is too short, asphalt is paved on a construction surface by the asphalt extrusion die head, when bubbles are continuously generated in the asphalt, the electrothermal defoaming roller passes through the asphalt and eliminates the current bubbles, but after the electrothermal defoaming roller and the electrothermal smooth roller leave, bubbles are still generated in the asphalt, so that bubbles still exist in the final asphalt, the defoaming effect is reduced, and the asphalt paving effect is reduced; if the distance between the center of the outlet of the asphalt extrusion die head and the axis of the electrothermal defoaming roller along the horizontal direction is greater than 1.5 m, the distance between the asphalt extrusion die head and the electrothermal defoaming roller is too long, asphalt is paved on a construction surface by the asphalt extrusion die head, when the electrothermal defoaming roller passes through asphalt on the construction surface, the asphalt is cooled and agglomerated, the required time for bubble breakage is prolonged by heat transfer through the electrothermal defoaming roller and the electrothermal smooth roller, but because the thickness of asphalt paving is fixed, the moving speed of the asphalt paving and defoaming integrated machine is fixed, namely the time for bubble breakage by heat transfer through the electrothermal defoaming roller and the electrothermal smooth roller is fixed, so that the defoaming effect is reduced, and the quality of asphalt paving is reduced.
Preferably, a blanking pipe is arranged between the other end of the feeding pipe and the inlet of the asphalt extrusion die head, the blanking pipe comprises a main pipe and a plurality of branch pipes, each branch pipe comprises a plurality of branches, one end of the main pipe is connected with the other end of the feeding pipe, the other end of the main pipe is connected with the highest branch pipe, the upper branch pipe is connected with the lower branch pipe, the lowest branch pipe is connected with the inlet of the asphalt extrusion die head, through the arrangement, asphalt enters the blanking pipe from the feeding pipe, the blanking pipe sequentially passes through the main pipe and the branch pipes, asphalt is split under the action of the branch pipes at a plurality of stages, the asphalt can uniformly flow into the asphalt extrusion die head, and finally flows out uniformly from the outlet of the asphalt extrusion die head and is paved on a construction surface, so that the asphalt paving uniformity is improved, and the asphalt paving effect is improved.
Preferably, the level of one end of the feeding pipe is higher than the other end of the feeding pipe, a feeding shaft is arranged in the feeding pipe, a helical blade is arranged on the feeding shaft along the axis direction, an asphalt conveying driving part is arranged on the feeding pipe and connected with the feeding shaft, through the arrangement, the feeding pipe is obliquely arranged, the flowing speed of asphalt is accelerated under the action of gravity, so that the conveying efficiency of asphalt is accelerated, the asphalt conveying driving part drives the feeding shaft to rotate, the helical blade is driven to rotate, the flowing speed of asphalt is further accelerated, the conveying efficiency of asphalt is further accelerated, the helical blade has a certain stirring effect on the asphalt, asphalt precipitation or agglomeration is avoided, and the uniformity of the asphalt is improved.
Preferably, the frame is provided with a height adjusting component, the height adjusting component is connected with the asphalt extrusion die head, and through the arrangement, the height of the asphalt extrusion die head can be adjusted according to the thickness of asphalt pavement by the height adjusting component, so that the asphalt pavement effect is improved.
Compared with the prior art, the invention has the beneficial technical effects that:
the wheel driving piece drives the wheel assembly to work, thereby drive the asphalt is laid defoaming all-in-one and is removed, asphalt is laid to the mechanism on the construction face, along with the removal of the defoaming all-in-one is laid to the asphalt, works as when the electric heat defoaming mechanism is through laying the asphalt on the construction face, the heat that the electric heat defoaming mechanism produced is transmitted to in the asphalt, and the bubble in the asphalt is heated to expand and break, reaches the effect of defoaming, and the electric heat defoaming mechanism has certain compaction effect to the asphalt, fills up the pit after the defoaming, thereby reaches asphalt and lays and the defoaming goes on simultaneously, improves the effect that the asphalt was laid, need not artifical follow-up defoaming, reduces the manpower demand, reduces manufacturing cost, improves production efficiency to the asphalt can not adhere to on the electric heat defoaming mechanism hardly, and practicality and durability are good.
Drawings
FIG. 1 is a schematic diagram of an asphalt paving and defoaming all-in-one machine according to example 1 of the present invention;
FIG. 2 is an enlarged partial schematic view of portion A of FIG. 1 in accordance with an embodiment of the present invention;
FIG. 3 is an enlarged partial schematic view of portion B of FIG. 1 in accordance with an embodiment of the invention;
FIG. 4 is a schematic illustration of the connection of the discharge tube of example 1 of the present invention to an asphalt extrusion die;
FIG. 5 is a schematic view of an asphalt paint bucket according to an embodiment of the present invention;
FIG. 6 is a schematic view of a bitumen extrusion die of example 2 of the present invention;
FIG. 7 is an axial schematic view of a first die of example 2 of the present invention;
FIG. 8 is a schematic front view of the first die of example 2 of the present invention;
FIG. 9 is a schematic cross-sectional view of the embodiment of the invention shown in FIG. 8C-C;
FIG. 10 is a schematic cross-sectional view of D-D in FIG. 8, in accordance with an embodiment of the present invention.
Wherein, the technical characteristics that each reference sign indicates are as follows:
1. a frame; 2. a wheel assembly; 3. an asphalt storage barrel; 4. a wheel driving member; 5. a defoaming driving element; 6. an asphalt paving mechanism; 7. an electrothermal defoaming mechanism; 8. an asphalt paint bucket; 31. a feed inlet; 32. a discharge port; 33. a cavity; 34. a top column; 41. a first transmission member; 51. a second transmission member; 52. a third transmission member; 61. an asphalt extrusion die head; 62. a feed pipe; 63. discharging pipes; 64. a height adjustment assembly; 65. a stop assembly; 66. an asphalt delivery drive; 67. a feeding shaft; 68. A helical blade; 71. a first link; 72. a second link; 73. an electrothermal defoaming roller; 74. an electrothermal smooth surface roller; 75. a tool apron; 76. a first scraper; 77. a second scraper; 78. a hydraulic support rod; 79. defoaming lifting cylinder; 81. a tub body; 82. A barrel cover; 83. a reverse bottom cover; 611. a first die; 612. a second die; 613. a trunk inlet flow passage; 614. a first-stage branch flow passage; 615. a second-stage branch flow passage; 616. three-stage branch flow channels; 617. four-stage branch flow channels; 618. collecting outlet flow channels; 619. flaring runner; 631. a main pipe; 632. a first-stage branch pipe; 633. a second-stage branch pipe; 641. a front side plate; 642. a slide block; 643. a hand wheel; 644. a screw; 651. a fixing seat; 652. a stopper cylinder; 653. a crank; 654. A stop block; 6181. a connection section; 6182. an inclined section; 6183. an outlet section.
Detailed Description
The present invention will be further described in detail with reference to the following examples, for the purpose of making the objects, technical solutions and advantages of the present invention more apparent, but the scope of the present invention is not limited to the following specific examples.
Example 1:
referring to fig. 1-5, this embodiment discloses an asphalt paving and defoaming all-in-one machine, which is implemented by adopting the asphalt paving and defoaming all-in-one machine, the asphalt paving and defoaming all-in-one machine comprises a frame 1, the frame 1 is a horizontally placed rectangular plate, the bottom end of the frame 1 is provided with a wheel assembly 2, the wheel assembly 2 comprises a driving wheel assembly and a driven wheel assembly, the driving wheel assembly and the driven wheel assembly are respectively arranged at two sides of the frame 1 along the length direction, the driven wheel assembly comprises a driven bracket, a driven shaft is arranged in the driven bracket and is rotationally connected with the driven bracket, in order to reduce the friction force between the driven shaft and the driven bracket, a bearing is arranged between the driven shaft and the driven bracket, driven wheels are respectively sleeved at two ends of the driven shaft, the driven shaft and the driven wheels are fixedly connected through keys, the driving wheel assembly comprises a driving bracket, a driving shaft is arranged in the driving bracket, the driving shaft is rotationally connected with the driving support, a bearing is arranged between the driving shaft and the driving support, driving wheels are arranged at two ends of the driving shaft, the driving shaft is fixedly connected with the driving wheels through keys, a pitch storage barrel 3, a wheel driving piece 4 and a defoaming driving piece 5 are arranged on the frame 1, the wheel driving piece 4 is connected with the wheel assembly 2, the wheel driving piece 4 comprises a first speed reducer, a first transmission piece 41 is arranged between the first speed reducer and the driving shaft, the first speed reducer drives the driving shaft to rotate through the first transmission piece 41, the driving shaft drives the driving wheels to rotate and finally drives the pitch paving and defoaming integrated machine to move, in one embodiment, the first transmission piece 41 comprises a belt assembly, the belt assembly comprises a driving belt pulley, a driven belt pulley and a belt, the driving belt pulley is arranged outside an output shaft of the output end of the first speed reducer, the driven belt pulley is arranged outside the driving shaft, the belt is sleeved outside the driving belt pulley and the driven belt pulley; in an embodiment, the first transmission member 41 includes a chain assembly, the chain assembly includes a driving sprocket, a driven sprocket and a chain, the driving sprocket is disposed outside an output shaft of the output end of the first speed reducer, the driven sprocket is disposed outside the driving shaft, the chain is sleeved outside the driving sprocket and the driven sprocket, and the following transmission members are disposed in the same manner and will not be described again; the one end of frame 1 along length direction is equipped with pitch and lays mechanism 6, and in this embodiment, pitch lays mechanism 6 sets up the one end that is close to initiative wheel subassembly, and pitch storage bucket 3 is connected with pitch and lays mechanism 6, and the other end of frame 1 is equipped with electric heat defoaming mechanism 7, and defoaming driving piece 5 is connected with electric heat defoaming mechanism 7.
The wheel driving piece 4 drives the wheel assembly 2 to work, thereby drive the asphalt and lay the defoaming all-in-one and remove, asphalt laying mechanism 6 lays the asphalt on the construction face, along with the removal of asphalt laying the defoaming all-in-one, when electric heat defoaming mechanism 7 is through laying the asphalt on the construction face, the heat transfer that electric heat defoaming mechanism 7 produced is to in the asphalt, bubble in the asphalt is heated and swelled and break, reach the effect of defoaming, and there is certain compaction effect at electric heat defoaming mechanism 7 to the asphalt, fill the pit that leaves after the defoaming, thereby reach asphalt and lay and the defoaming go on simultaneously, improve the effect that the asphalt was laid, need not artifical follow-up defoaming, reduce the manpower demand, reduce manufacturing cost, improve production efficiency, and the asphalt can hardly adhere to on electric heat defoaming mechanism 7, the practicality and durability are good.
The electrothermal defoaming mechanism 7 comprises a first connecting rod 71, a second connecting rod 72, an electrothermal defoaming roller 73 and an electrothermal smooth roller 74, wherein the electrothermal defoaming roller 73 comprises a roller and an electrothermal rod arranged in the roller, the electrothermal smooth roller 74 comprises a smooth roller and an electrothermal rod arranged in the smooth roller, one end of the first connecting rod 71 is hinged with the frame 1, the other end of the first connecting rod 71 is hinged with one end of the second connecting rod 72, the electrothermal defoaming roller 73 is rotationally connected with one end of the second connecting rod 72, the electrothermal smooth roller 74 is rotationally connected with the other end of the second connecting rod 72, one end of the other end of the second connecting rod 72 is far away from the asphalt paving mechanism 6, a defoaming driving piece 5 is connected with the electrothermal defoaming roller 73, the electrothermal defoaming roller 73 is in transmission connection with the electrothermal smooth roller 74, and further specifically described, the defoaming driving piece 5 comprises a second speed reducer, the bottom end of the frame 1 is provided with two belt seat bearings, the two bearings with seats are arranged in parallel at intervals along the width direction of the frame 1, a first rotating shaft is arranged in the bearings with seats, first connecting rods 71 are arranged at two sides of the first rotating shaft, the first connecting rods 71 positioned at two sides of the first rotating shaft are arranged at intervals in parallel, one end of each first connecting rod 71 is sleeved outside the corresponding first rotating shaft, a second transmission piece 51 is arranged between each second speed reducer and the corresponding first rotating shaft, a second rotating shaft is arranged in the other end of each first connecting rod 71, two sides of each second rotating shaft are respectively penetrated in the corresponding first connecting rod 71, the second rotating shaft is rotationally connected with the other end of the corresponding first connecting rod 71, an electrothermal defoaming roller 73 is sleeved outside the corresponding second rotating shaft and is fixedly connected with the corresponding second rotating shaft, a third transmission piece 52 is arranged between the corresponding second rotating shaft and the corresponding first rotating shaft, second connecting rods 72 positioned at two sides of the corresponding second rotating shaft are arranged at intervals in parallel, one end of the second connecting rod 72 is sleeved outside the second rotating shaft, a third rotating shaft is arranged in the other end of the second connecting rod 72, the electrothermal finishing roller 74 is sleeved outside the third rotating shaft and fixedly connected with the third rotating shaft, the wheel driving piece 4 drives the wheel assembly 2 to work so as to drive the asphalt paving and defoaming all-in-one machine to walk, the asphalt paving mechanism 6 lays asphalt on a construction surface, along with the walking of the asphalt paving and defoaming all-in-one machine, when the electrothermal defoaming roller 73 and the electrothermal finishing roller 74 pass through the asphalt paved on the construction surface, the electrothermal defoaming roller 73 and the electrothermal finishing roller 74 apply downward pressure to the asphalt under the action of gravity, the defoaming driving piece 5 drives the electrothermal defoaming roller 73 to rotate, the electrothermal finishing roller 74 is driven to rotate, the electrothermal defoaming roller 73 and the electrothermal finishing roller 74 generate heat through internal electrothermal rods, the heat transfer of the electrothermal defoaming roller 73 is kept away by asphalt according to expansion and contraction, air bubbles in the asphalt are heated and expanded to break so as to achieve the defoaming effect, pits are generated on the surface of the asphalt after defoaming, the heat generated by the electrothermal smooth roller 74 is transferred to the asphalt to ensure complete elimination of the air bubbles in the asphalt, the electrothermal smooth roller 74 can fill the pits generated by the asphalt due to defoaming, the paving effect of the asphalt is improved, according to the characteristics of the asphalt, the higher the temperature of the asphalt is, the better the fluidity of the asphalt is, the lower the viscosity of the asphalt is, namely the temperature of the asphalt is in direct proportion to the fluidity, the temperature of the asphalt is in inverse proportion to the viscosity, even if asphalt is adhered to the electrothermal defoaming roller 73 and the electrothermal smooth roller 74, the temperature of the surfaces of the electrothermal defoaming roller 73 and the electrothermal smooth roller 74 is higher, and the electrothermal smooth roller 74 rotates, asphalt is easy to separate from the electrothermal defoaming roller 73 and the electrothermal smooth roller 74, and cannot accumulate on the electrothermal defoaming roller 73 and the electrothermal smooth roller 74, and the surface of the electrothermal smooth roller 74 is smoother than the surface of the electrothermal defoaming roller 73, so that the adhesion degree of asphalt on the electrothermal smooth roller 74 is further reduced.
The bottom of frame 1 still is equipped with hydraulic support pole 78, and hydraulic support pole 78's push rod is vertical down, and hydraulic support pole 78's push rod is articulated with first connecting rod 71, and under the operating condition of the defoaming all-in-one is laid to pitch, hydraulic support pole 78's push rod downwardly moving stretches out, produces decurrent effect down first connecting rod 71, increases electrothermal defoaming roller 73 and produces decurrent effort to pitch to improve electrothermal defoaming roller 73 to pitch's compaction ability, can press the bubble through extruded auxiliary mode moreover, improve electrothermal defoaming roller 73's defoaming effect.
The bottom of frame 1 still is equipped with defoaming lifting cylinder 79, and the piston rod of defoaming lifting cylinder 79 is vertical down, and the piston rod of defoaming lifting cylinder 79 is articulated with first connecting rod 71, when the asphalt pavement defoaming all-in-one is not under operating condition, the piston rod of defoaming lifting cylinder 79 upwards moves and contracts to drive first connecting rod 71, second connecting rod 72, electrothermal defoaming roller 73 and electrothermal smooth surface roller 74 upwards lift, make electrothermal defoaming roller 73 and electrothermal smooth surface roller 74 and holding surface do not contradict, electrothermal defoaming roller 73 and electrothermal smooth surface roller 74 cause the damage when the asphalt pavement defoaming all-in-one removes.
The second connecting rod 72 between the electrothermal defoaming roller 73 and the electrothermal finishing roller 74 is provided with a cutter seat 75, the cutter seat 75 is provided with a first scraper 76 and a second scraper 77, the first scraper 76 and the second scraper 77 are hinged with the cutter seat 75, the first scraper 76 is abutted against the peripheral wall of the electrothermal defoaming roller 73, the second scraper 77 is abutted against the peripheral wall of the electrothermal finishing roller 74, springs are arranged between the first scraper 76 and the second scraper 77 respectively and the second connecting rod 72, the first scraper 76 and the second scraper 77 are enabled to be tightly abutted against the peripheral wall of the electrothermal defoaming roller 73 and the peripheral wall of the electrothermal finishing roller 74 respectively, the first scraper 76 can scrape asphalt attached to the peripheral wall of the electrothermal defoaming roller 73, the second scraper 77 can scrape asphalt attached to the electrothermal finishing roller 74, the electrothermal defoaming roller 73 and the electrothermal finishing roller 74 are further enabled not to be attached to asphalt, the practicability and the durability are further improved, the quantity of asphalt accumulated on the first scraper 76 and the second scraper 77 is increased, the asphalt drops downwards under the action of gravity, the quality of paving the asphalt is guaranteed.
In this embodiment, a driving gear is disposed at one end of the second rotating shaft, a driven gear is disposed at one end of the third rotating shaft, a first transition gear and a second transition gear are disposed on a second connecting rod 72 disposed between the driving gear and the driven gear, the driving gear is meshed with the first transition gear, the first transition gear is meshed with the second transition gear, the second transition gear is meshed with the driven gear, it is known through connection relation analysis that rotation directions of the electrothermal defoaming roller 73 and the electrothermal roller 74 are opposite, horizontal acting forces of the electrothermal defoaming roller 73 and the electrothermal roller 74 on asphalt are opposite, effects of filling pits after defoaming are improved, and accordingly asphalt paving effects are improved.
The asphalt storage barrel 3 comprises a cavity 33 for storing asphalt, the top end of the asphalt storage barrel 3 is provided with a feed inlet 31, the bottom end of the asphalt storage barrel 3 is provided with a discharge outlet 32, the feed inlet 31 and the discharge outlet 32 are communicated with the cavity 33, the side wall of the lower part of the cavity 33 is obliquely arranged, the discharge outlet 32 is arranged at the bottom end of the cavity 33, the asphalt paving mechanism 6 comprises a feed pipe 62 and an asphalt extrusion die head 61, the asphalt extrusion die head 61 is connected with a frame 1, the asphalt extrusion die head 61 is provided with an inlet and an outlet, the width of the outlet of the asphalt extrusion die head 61 is 1-3mm according to the asphalt paving thickness requirement, one end of the feed pipe 62 is connected with the discharge outlet 32 of the asphalt storage barrel 3, the other end of the feed pipe 62 is connected with the inlet of the asphalt extrusion die head 61, a stop block component 65 is arranged in the outlet of the asphalt extrusion die head 61, asphalt is supplemented to the asphalt storage barrel 3 from the feed inlet 31 at the top end of the asphalt storage barrel 3, specifically, a cross bracket is arranged in a feed port 31 of an asphalt storage barrel 3, a jack post 34 protruding upwards is arranged at the center of the cross bracket, and is matched with an asphalt coating barrel 8 disclosed in the prior application of the applicant, publication No. CN111392176A, as shown in figure 5, the asphalt coating barrel 8 comprises a barrel body 81 and a barrel cover 82, the barrel cover 82 is arranged at the top end of the barrel body 81, the barrel body 81 and the barrel cover 82 form a hollow containing cavity, the containing cavity can contain paint, a penetrating outlet is arranged at the bottom end of the barrel body 81, the outlet enables the containing cavity to be communicated with the outside of the barrel body 81, a reverse bottom cover 83 is arranged on the outlet, the reverse bottom cover 83 can only be opened from the outside of the barrel body 81 to the inside, when asphalt is required to be supplemented, the asphalt coating barrel 8 is placed on the cross bracket, the jack post 34 jacks the reverse bottom cover 83 from the outside to the inside, and asphalt in the asphalt coating barrel 8 enters the asphalt storage barrel 3 from the feed port 31, asphalt in the asphalt storage barrel 3 flows out from the discharge hole 32, flows into the asphalt extrusion die head 61 under the guiding action of the feeding pipe 62, and when the asphalt is required to be paved, the stop block assembly 65 opens the outlet of the asphalt extrusion die head 61, and under the action of gravity, the asphalt flows out from the outlet of the asphalt extrusion die head 61 and is paved on a construction surface.
Further, the distance between the center of the outlet of the asphalt extrusion die head 61 and the axis of the electrothermal defoaming roller 73 along the horizontal direction is between 1 meter and 1.5 meters, when asphalt is paved on a construction surface, bubbles are continuously generated, the asphalt is stable after a period of time, bubbles are not continuously generated, the reasonable interval between the asphalt extrusion die head 61 and the electrothermal defoaming roller 73 is set, the defoaming effect of asphalt is ensured, and the paving quality of asphalt is ensured; if the distance between the center of the outlet of the asphalt extrusion die head 61 and the axis of the electrothermal defoaming roller 73 in the horizontal direction is less than 1 meter, the distance between the asphalt extrusion die head 61 and the electrothermal defoaming roller 73 is too short, the asphalt extrusion die head 61 lays asphalt on the construction surface, when bubbles are continuously generated in the asphalt, the electrothermal defoaming roller 73 passes through the asphalt and eliminates the current bubbles, but after the electrothermal defoaming roller 73 and the electrothermal smooth roller 74 leave, bubbles are still generated in the asphalt, so that bubbles still exist in the final asphalt, the defoaming effect is reduced, and the asphalt laying effect is reduced; if the distance between the center of the outlet of the asphalt extrusion die head 61 and the axis of the electrothermal defoaming roller 73 in the horizontal direction is greater than 1.5 m, the pitch between the asphalt extrusion die head 61 and the electrothermal defoaming roller 73 is excessively long, the asphalt is laid on the construction surface by the asphalt extrusion die head 61, when the electrothermal defoaming roller 73 passes through the asphalt on the construction surface, the asphalt is already cooled and agglomerated, the required time for breaking bubbles is increased by transferring heat through the electrothermal defoaming roller 73 and the electrothermal smooth roller 74, but because the thickness of the asphalt is constant, the moving speed of the asphalt laying and defoaming integrated machine is constant, namely, the time for breaking bubbles by transferring heat through the electrothermal defoaming roller 73 and the electrothermal smooth roller 74 is constant, thereby reducing the defoaming effect and lowering the quality of asphalt laying.
The utility model provides a be equipped with unloading pipe 63 between the other end of conveying pipe 62 and the import of pitch extrusion die 61, unloading pipe 63 includes main pipe 631 and a plurality of branch pipe of dividing, see from the direction of fig. 4, the branch pipe of top is the branch pipe of highest grade, the branch pipe of lowest grade is the branch pipe of lowest grade, and each branch pipe of dividing includes many branches, the one end of main pipe 631 is connected with the other end of conveying pipe 62, the other end and the branch pipe of highest grade of main pipe 631 are connected, the branch pipe of upper grade is connected with the branch pipe of lower grade, the branch pipe of lowest grade is connected with the import of pitch extrusion die 61, in this embodiment, unloading pipe 63 two-stage branch pipe is from top to bottom in proper order is first order branch pipe 632 and second grade branch pipe 633, the top of main pipe 631 is connected with conveying pipe 62, the bottom and first grade branch pipe 632 are connected, the two branch pipe of first grade branch pipe 632 are connected with second grade branch pipe 633 respectively, second grade branch pipe 633 is connected with extrusion die 61, concrete, the second grade branch pipe 633 wears to locate in pitch extrusion die 61, pitch gets into unloading pipe 62 in, in the unloading pipe 63, the effect is laid in proper order in the lower grade and a plurality of branch pipe 63 and a plurality of evenly, the effect is laid in the equal to the pitch is carried out in the aspect of the lower grade of the extrusion die 61, the effect is guaranteed in the lower grade, the pitch is evenly laid in the aspect of the lower grade of the asphalt, and the effect is laid down in the lower grade, and the effect is evenly under the effect of the quality, and is under the effect, and the quality.
Further, the pipe diameter of the main pipe 631 is larger than that of the branch pipe, the pipe diameter of the upper branch pipe is larger than or equal to that of the lower branch pipe, and the pressure drop phenomenon is caused by the energy loss generated when the fluid flows in the flow channel, wherein the energy loss is caused by overcoming the internal friction force and the mutual collision and exchange kinetic energy between fluid particles when the fluid flows in the turbulence, and the pressure difference, namely the pressure drop, is generated at the front and rear positions of the fluid flow, so when the asphalt sequentially flows through a plurality of branch pipes from the main pipe 631 and flows out of the asphalt extrusion die 61 after the diversion effect of the plurality of branch pipes, the pressure of the asphalt flowing out is obviously smaller than that of the flowing in when the pipe diameter of the upper branch pipe is larger than that of the lower branch pipe, namely the flow section of the pipeline is reduced, the pressure of the asphalt flowing out of the upper branch pipe to the lower branch flow channel can be properly improved, and the construction effect and efficiency are improved within a certain pressure and flow rate when the asphalt flows out of the asphalt extrusion die 61 are ensured; when the pipe diameter of the upper branch pipe is equal to that of the lower branch pipe, enough asphalt in the branch pipe is stored, and when the asphalt flows through the branch pipes with unequal pipe diameters of two adjacent stages, the pressure of the asphalt can be better improved, and the pressure drop effect can be further reduced.
The level of the one end of conveying pipe 62 is higher than the other end of conveying pipe 62, and be equipped with feeding axle 67 in the conveying pipe 62, feeding axle 67 is equipped with helical blade 68 along the axis direction, be equipped with pitch transport driving piece 66 on the conveying pipe 62, pitch transport driving piece 66 is connected with feeding axle 67, pitch transport driving piece 66 includes the third speed reducer, the conveying pipe 62 slope sets up, under the effect of gravity, accelerate the flow velocity of pitch, thereby accelerate the conveying efficiency of pitch, and pitch transport driving piece 66 drive feeding axle 67 rotates, drive helical blade 68 rotates, further accelerate the flow velocity of pitch, further accelerate the conveying efficiency of pitch, and helical blade 68 has certain stirring effect to pitch, avoid pitch to deposit or agglomerate, improve the homogeneity of pitch.
The included angle between the axis of the feeding pipe 62 and the horizontal direction is within the range of 30-60 degrees, the feeding pipe 62 is obliquely arranged, the situation that the height of the asphalt storage barrel 3 is too large is avoided under the condition that the flow speed of asphalt is accelerated by utilizing gravity, preferably, the included angle between the axis of the feeding pipe 62 and the horizontal direction is 45 degrees, and if the included angle between the axis of the feeding pipe 62 and the horizontal direction is smaller than 30 degrees, the inclination of the feeding pipe 62 is too small, and the flow speed of asphalt cannot be accelerated by utilizing gravity well; if the included angle between the axis of the feeding pipe 62 and the horizontal direction is greater than 60 °, although gravity can be well utilized to accelerate the flow rate of asphalt, the height of the end of the feeding pipe 62 connected with the asphalt storage barrel 3 is higher, which results in the height of the asphalt storage barrel 3 being too high, and thus, the asphalt is not easily added into the asphalt storage barrel 3.
The one end of frame 1 is equipped with high adjusting part 64, high adjusting part 64 is connected with pitch extrusion die 61, high adjusting part 64 can be according to pitch thickness adjustment pitch extrusion die 61 that lays, thereby improve pitch effect of laying, concrete, high adjusting part 64 includes screw rod 644 and hand wheel 643, the bottom and the top fixed connection of pitch extrusion die 61 of screw rod 644, frame 1's one end is equipped with preceding curb plate 641, hand wheel 643 and preceding curb plate 641 are rotated and are connected, screw rod 644 wears to locate in the hand wheel 643 and with hand wheel 643 threaded connection, when rotating hand wheel 643, adjust pitch extrusion die 61's height through the cooperation between hand wheel 643 and the screw rod 644, further, be equipped with the guide rail that extends along vertical direction on the lateral wall of preceding curb plate 641, pitch extrusion die 61's top is equipped with slider 642, slider 642 and pitch extrusion die 61 fixed connection, outside the guide rail is located to slider 642 cover, high adjusting part 64 has played the guide effect for pitch extrusion die 61.
The block assembly 65 comprises a fixed seat 651, a block cylinder 652, a crank 653 and a block 654, wherein the fixed seat 651 is arranged at the bottom end of the frame 1, the block cylinder 652 is fixedly connected with the fixed seat 651, a piston rod of the block cylinder 652 is vertically downward, the crank 653 is L-shaped, the crank 653 comprises a transverse handle and a vertical handle, one end of the transverse handle is connected with one end of the vertical handle, one end of the transverse handle connected with the vertical handle is hinged with the asphalt extrusion die head 61, a piston rod of the block cylinder 652 is hinged with the other end of the transverse handle, the other end of the vertical handle is hinged with the block 654, and the expansion and contraction of the piston rod of the block cylinder 652 can drive the block 654 to rotate through the transmission of the connection relationship, so that the outlet of the asphalt extrusion die head 61 is opened or the outlet of the asphalt extrusion die head 61 is closed; moreover, this arrangement is used in combination with the height adjusting assembly 64, and since the blanking pipe 63 is inserted into the asphalt extrusion die 61, the piston rod of the stopper cylinder 652 is telescopically adjusted, and when the height adjusting assembly 64 adjusts the height of the asphalt extrusion die 61, the piston rod of the stopper cylinder 652 and the blanking pipe 63 are adaptively adjusted.
Further, the asphalt paving and defoaming all-in-one machine further comprises a heating component, wherein the heating component comprises a heating sheet arranged on the outer wall of the asphalt storage barrel 3 and the outer wall of the asphalt extrusion die head 61 and a heating pipe coiled on the outer wall of the conveying pipe 62, and asphalt is heated in the conveying process through the heating sheet and the heating pipe due to the fact that the temperature of the asphalt is reduced in the conveying process, so that the asphalt is ensured to always meet the requirements of construction temperature, and the asphalt paving quality is ensured.
Example 2:
in this embodiment, referring to fig. 6 to 10, the slider 642 is disposed on a side wall of the pitch extrusion die 61, the pitch extrusion die 61 is provided with a pitch flow path, the pitch flow path includes a main inlet flow path 613 formed at a top end of the pitch extrusion die 61, a plurality of branch flow paths formed in the pitch extrusion die 61, and a converging outlet flow path 618 formed at a bottom end of the pitch extrusion die 61, each branch flow path includes a plurality of branches, the other end of the feed pipe 62 is disposed in the main inlet flow path 613 of the pitch extrusion die 61 in a penetrating manner, the highest branch flow path is a branch flow path located at an uppermost portion of the pitch extrusion die 61, the lowest branch flow path is a branch flow path located at a lowermost portion of the pitch extrusion die 61, the main inlet flow path 613 is connected with the highest branch flow path, each branch flow path is connected with the lower branch flow path, and the lowest branch flow path is connected with the converging outlet flow path 618; in this embodiment, the asphalt extrusion die 61 includes a first die 611 and a second die 612, the first die 611 is provided with a concave first runner, the second die 612 is provided with a second runner corresponding to the first die 611, the corresponding meaning means that the first runner is symmetrical to the second runner, and when the first die 611 is connected with the second die 612, the first runner and the second runner form the asphalt runner, so that the process of processing the asphalt runner is simple and the production cost is low.
In this embodiment, the asphalt flow channel includes a main inlet flow channel 613, a four-stage branch flow channel 617 and a collecting outlet flow channel 618, each stage branch flow channel includes two branches, each stage branch flow channel is connected with a lower stage branch flow channel, the four-stage branch flow channel 617 is a first stage branch flow channel 614, a second stage branch flow channel 615, a three-stage branch flow channel 616 and a four-stage branch flow channel 617 in sequence, wherein the first stage branch flow channel 614 is a highest stage branch flow channel, the four-stage branch flow channel 617 is a lowest stage branch flow channel, the main inlet flow channel 613 is connected with the first stage branch flow channel 614, the first stage branch flow channel 614 is connected with the second stage branch flow channel 615, the three-stage branch flow channel 616 is connected with the four-stage branch flow channel 617, asphalt flows in from the main inlet flow channel 613, and after being shunted by a plurality of stages of branch flow channels, the asphalt is ensured to uniformly flow from the collecting outlet flow channel 618, and the asphalt paving effect is improved.
Further specifically describing, from the highest-level branch flow channel to the lowest-level branch flow channel, the cross-sectional area of the lower-level branch flow channel along the direction perpendicular to the asphalt flow direction is smaller than or equal to the cross-sectional area of the upper-level branch flow channel along the direction perpendicular to the asphalt flow direction, the lower-level branch flow channel and the upper-level branch flow channel are two adjacent branch flow channels, the lower-level branch flow channel is positioned at the downstream of the upper-level branch flow channel, when asphalt flows into the asphalt extrusion die head 61 from the main inlet flow channel 613, after uniform flow of a plurality of levels of branch flow channels, the asphalt finally flows out from the collecting outlet flow channel 618 in a collecting way, the pressure of the asphalt outflow is obviously smaller than the pressure of the inflow, the cross-sectional area of the lower-level branch flow channel along the direction perpendicular to the asphalt flow direction is smaller than the cross-sectional area of the upper-level branch flow channel along the direction perpendicular to the asphalt flow direction, namely, the flow channel volume is reduced, so that the pressure of the asphalt flowing from the upper-level branch flow channel to the lower-level branch flow channel can be properly improved, and the construction effect and efficiency are improved within a certain pressure and flow rate when the asphalt flows out from the collecting outlet flow channel 618; when the cross-sectional area of the lower branch flow passage along the direction perpendicular to the flow direction of asphalt is equal to the cross-sectional area of the upper branch flow passage along the direction perpendicular to the flow direction of asphalt, asphalt in the branch flow passage is stored by a sufficient amount, and when the asphalt flows through the adjacent two branch flow passages with unequal cross-sectional areas, the pressure of the asphalt can be better improved, and the effect of pressure drop can be further reduced.
The height of the lower branch flow passage from the highest-stage branch flow passage to the lowest-stage branch flow passage is smaller than or equal to the height of the upper branch flow passage, and the height of the branch flow passage refers to, as viewed from the direction of fig. 8: in the horizontal straight line section of the branch flow passage, the vertical distance between the top wall and the bottom wall of the branch flow passage can be in such a way that the cross-sectional area of the lower branch flow passage is smaller than or equal to the cross-sectional area of the upper branch flow passage, in this embodiment, the height of the second-stage branch flow passage 615 is equal to that of the first-stage branch flow passage 614, the height of the third-stage branch flow passage 616 is smaller than that of the second-stage branch flow passage 615, and the height of the fourth-stage branch flow passage 617 is equal to that of the third-stage branch flow passage 616, namely H 4 ＝H 3 <H 2 ＝H 1 。
The depth of the lower stage branch flow passage is smaller than or equal to the depth of the upper stage branch flow passage from the highest stage branch flow passage to the lowest stage branch flow passage, and the depth of the branch flow passage refers to, as viewed from the direction of fig. 9 or 10: the size of the branch flow passage along the thickness direction of the asphalt extrusion die 61 can be such that the cross-sectional area of the lower branch flow passage is smaller than or equal to the cross-sectional area of the upper branch flow passage, in this embodiment, the depth of the second-stage branch flow passage 615 is equal to that of the first-stage branch flow passage 614, the depth of the third-stage branch flow passage 616 is smaller than that of the second-stage branch flow passage 615, the depth of the fourth-stage branch flow passage 617 is equal to that of the third-stage branch flow passage 616, and in a specific implementation manner, a slope step is provided at the junction of the second-stage branch flow passage 615 and the third-stage branch flow passage 616, so that the depth of the third-stage branch flow passage 616 is smaller than that of the second-stage branch flow passage 615.
The lowest-stage branch flow passage is connected with the collecting outlet flow passage 618 through a flaring flow passage 619, the flaring flow passage 619 comprises an inlet and an outlet, the length of the flaring flow passage 619 is gradually increased from the inlet to the outlet of the flaring flow passage 619, the inlet of the flaring flow passage 619 is connected with the outlet of the lowest-stage branch flow passage, the outlet of the flaring flow passage 619 is connected with the inlet of the collecting outlet flow passage 618, and asphalt uniformly flows from the lowest-stage branch flow passage to the collecting outlet flow passage 618 through the flaring flow passage 619.
The flared flow channels 619 are obliquely arranged from the lowest-stage branch flow channel to the converging outlet flow channel 618, and referring to the figure, the flared flow channels 619 are arranged at an included angle with the end face of the first die head 611, and the included angle ranges from 30 degrees to 50 degrees, so that the depth of the converging outlet flow channel 618 is smaller than that of the lowest-stage branch flow channel, the volume of the converging outlet flow channel 618 can be reduced, and the pressure of asphalt flowing from the lowest-stage branch flow channel to the converging outlet flow channel 618 can be further appropriately improved.
The collecting outlet flow passage 618 comprises a connecting section 6181, an inclined section 6182 and an outlet section 6183, wherein the connecting section 6181 is connected with an outlet of the flaring flow passage 619, the connecting section 6181 is connected with the outlet section 6183 through the inclined section 6182, the inclined section is arranged at an included angle with the end face of the first die head 611, the angle range is between-DEG, the depth of the outlet section 6183 is smaller than that of the connecting section 6181, the depth of the outlet section 6183 is about 1-2mm, the cross-sectional area of the outlet section 6183 along the direction perpendicular to the asphalt flow direction is smaller than that of the connecting section 6181, the volume of the outlet section 6183 is smaller than that of the connecting section 6181, the pressure of asphalt flowing from the connecting section 6181 to the outlet section 6183 is further properly improved, the pressure of the asphalt is gradually improved through multiple stages, and adjustment and alleviation are achieved without affecting the uniformity of the asphalt flow.
Be equipped with a plurality of constant head tanks on the first die head 611, and be located and be equipped with a plurality of screw holes on the constant head tank, be equipped with the boss with the constant head tank one-to-one on the second die head 612, be equipped with the through-hole with the screw hole one-to-one on the boss, through the cooperation of constant head tank and boss, the location cooperation of first die head 611 and second die head 612 of being convenient for, adopt the screw pass behind the through-hole with screw hole threaded connection, with first die head 611 and second die head 612 fixed connection, be equipped with slim sealing washer in the constant head tank, after first die head 611 and second die head 612 fixed connection, slim sealing washer imbeds between constant head tank and the boss, improve pitch extrusion die head 61's leakproofness.
The end of each stage branch runner connected with the lower stage branch runner and the end of the lowest stage branch runner connected with the collecting outlet runner 618 are arranged in an arc section, and asphalt can more smoothly transition from the upper stage branch runner to the lower stage branch runner or from the lowest stage branch runner to the collecting outlet runner 618 under the flow guiding effect of the arc section.
The asphalt paving and defoaming method by adopting the asphalt paving and defoaming integrated machine comprises the following steps of:
step 1: paving asphalt:
the wheel driving piece 4 drives the wheel assembly to work so as to drive the asphalt paving and defoaming integrated machine to move, and the asphalt paving mechanism 6 paves asphalt on a construction surface; specifically, the asphalt paint bucket 8 is placed on the cross bracket, the top column 34 jacks up the reverse bottom cover 83 of the asphalt paint bucket 8 from outside to inside, asphalt in the asphalt paint bucket 8 flows into the cavity 33 of the asphalt storage bucket 3 from the feed inlet 31, the equipment is started, the first speed reducer drives the driving wheel to rotate so as to drive the asphalt paving and defoaming integrated machine to move, meanwhile, the piston rod of the stop block cylinder 652 moves downwards to stretch out, the stop block 654 rotates to open the outlet of the asphalt extrusion die head 61, the third speed reducer drives the feed shaft 67 to rotate so as to drive the spiral blade 68 to rotate, and the asphalt is conveyed into the asphalt extrusion die head 61 and uniformly flows out from the asphalt extrusion die head 61 to be paved on a construction surface;
Step 2: defoaming:
the electrothermal defoaming mechanism 7 eliminates bubbles in asphalt; specifically, the asphalt paving and defoaming integrated machine continues to move, the defoaming driving piece 5 drives the electrothermal defoaming roller 73 to rotate, the rotation direction of the electrothermal defoaming roller 73 is the same as that of the driving wheel and the driven wheel, when the electrothermal defoaming roller 73 passes through asphalt paved on a construction surface, heat generated by an electrothermal rod in the electrothermal defoaming roller 73 is transferred to the peripheral wall, and then the heat is transferred to the asphalt through heat transfer, so that bubbles in the asphalt are heated, expanded and broken, the defoaming effect is achieved, meanwhile, a push rod of the hydraulic support rod 78 moves downwards to extend out, downward acting force is generated on the electrothermal defoaming roller 73, the pressure of the electrothermal defoaming roller 73 on the asphalt is increased, the bubbles are crushed in an auxiliary mode of extruding the asphalt, the defoaming effect is improved, a certain auxiliary compaction effect is achieved on the asphalt, and even if the asphalt is attached to the peripheral wall of the electrothermal defoaming roller 73, the first scraper 76 scrapes off the asphalt attached to the peripheral wall of the electrothermal defoaming roller 73, the asphalt is prevented from accumulating on the periphery of the electrothermal defoaming roller 73, the practicability and the durability of the electrothermal defoaming roller 73 are improved, and the asphalt is accumulated downwards after the first scraper 76 is pressed to a certain weight;
Step 3: compacting and filling:
the electrothermal defoaming mechanism 7 applies pressure to compact asphalt and fill up pits generated on the surface of the asphalt after defoaming; specifically, the electrothermal defoaming roller 73 drives the electrothermal smooth roller 74 to rotate, after the electrothermal defoaming roller 73 rotates to defoam, when the electrothermal smooth roller 74 passes through asphalt paved on a construction surface, heat of the electrothermal smooth roller 74 is transferred into the asphalt to further defoam, so that bubbles are completely eliminated, the electrothermal smooth roller 74 further compacts the asphalt under the action of gravity, the second scraper 77 always abuts against the periphery wall of the electrothermal smooth roller 74, even if asphalt is attached to the periphery wall of the electrothermal smooth roller 74, the second scraper 77 scrapes the asphalt attached to the periphery wall of the electrothermal smooth roller 74, the asphalt is prevented from accumulating outside the electrothermal smooth roller 74, the practicability and durability of the electrothermal smooth roller 74 are improved, the asphalt on the second scraper 77 drops downwards after accumulating a certain weight, the electrothermal smooth roller 74 fills the pits after defoam or spreads the asphalt dropped from the scraper, and the quality of asphalt paving is improved.
Variations and modifications to the above would be obvious to persons skilled in the art to which the invention pertains from the foregoing description and teachings. Therefore, the invention is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the invention should be also included in the scope of the claims of the invention. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not constitute any limitation on the invention.
Claims (6)
1. The asphalt paving and defoaming method is characterized by comprising an asphalt paving and defoaming integrated machine, wherein the asphalt paving and defoaming integrated machine comprises a frame (1), a wheel assembly (2) is arranged at the bottom end of the frame (1), an asphalt storage barrel (3), a wheel driving piece (4) and a defoaming driving piece (5) are arranged on the frame (1), the wheel driving piece (4) is connected with the wheel assembly (2), an asphalt paving mechanism (6) is arranged at one end of the frame (1), the asphalt storage barrel (3) is connected with the asphalt paving mechanism (6), an electric heating defoaming mechanism (7) is arranged at the other end of the frame (1), and the defoaming driving piece (5) is connected with the electric heating defoaming mechanism (7);
the electrothermal defoaming mechanism (7) comprises a first connecting rod (71), a second connecting rod (72), an electrothermal defoaming roller (73) and an electrothermal surface roller (74), one end of the first connecting rod (71) is hinged to the frame (1), the other end of the first connecting rod (71) is hinged to one end of the second connecting rod (72), the electrothermal defoaming roller (73) is rotationally connected with one end of the second connecting rod (72), the electrothermal surface roller (74) is rotationally connected with the other end of the second connecting rod (72), the other end of the second connecting rod (72) is far away from the asphalt paving mechanism (6) relative to one end of the second connecting rod (72), the defoaming driving piece (5) is connected with the electrothermal defoaming roller (73), and the electrothermal defoaming roller (73) is in transmission connection with the electrothermal surface roller (74).
The bottom end of the frame (1) is also provided with a hydraulic support rod (78), a push rod of the hydraulic support rod (78) faces downwards vertically, and the push rod of the hydraulic support rod (78) is hinged with the first connecting rod (71);
the bottom end of the frame (1) is also provided with a defoaming lifting cylinder (79), a piston rod of the defoaming lifting cylinder (79) faces downwards vertically, and the piston rod of the defoaming lifting cylinder (79) is hinged with the first connecting rod (71);
the second connecting rod (72) between the electrothermal defoaming roller (73) and the electrothermal smooth roller (74) is provided with a cutter holder (75), the cutter holder (75) is provided with a first scraper (76) and a second scraper (77), the first scraper (76) is abutted against the peripheral wall of the electrothermal defoaming roller (73), and the second scraper (77) is abutted against the peripheral wall of the electrothermal smooth roller (74);
the asphalt paving defoaming method comprises the following steps:
step 1: paving asphalt: the wheel driving piece (4) drives the wheel assembly (2) to work so as to drive the asphalt paving and defoaming integrated machine to move, and the asphalt paving mechanism (6) paves asphalt on a construction surface;
step 2: defoaming: the electrothermal defoaming mechanism (7) eliminates bubbles in asphalt;
step 3: compacting and filling: the electrothermal defoaming mechanism (7) applies pressure to compact asphalt and fill up pits generated on the surface of the asphalt after defoaming.
2. The asphalt paving defoaming method according to claim 1, wherein the top end of the asphalt storage barrel (3) is provided with a feed inlet (31), the bottom end of the asphalt storage barrel (3) is provided with a discharge outlet (32), the asphalt paving mechanism (6) comprises a feed pipe (62) and an asphalt extrusion die head (61), the asphalt extrusion die head (61) is connected with the frame (1), the asphalt extrusion die head (61) is provided with an inlet and an outlet, one end of the feed pipe (62) is connected with the discharge outlet (32) of the asphalt storage barrel (3), the other end of the feed pipe (62) is connected with the inlet of the asphalt extrusion die head (61), and a stop block assembly (65) is arranged in the outlet of the asphalt extrusion die head (61).
3. The asphalt paving defoaming method of claim 2, wherein the distance in the horizontal direction between the center of the outlet of the asphalt extrusion die (61) and the axis of the electrothermal defoaming roller (73) is between 1 meter and 1.5 meters.
4. The asphalt paving defoaming method according to claim 2, wherein a blanking pipe (63) is provided between the other end of the feeding pipe (62) and the inlet of the asphalt extrusion die head (61), the blanking pipe (63) comprises a main pipe (631) and a plurality of branch pipes of different grades, each grade of the branch pipes comprises a plurality of branches, one end of the main pipe (631) is connected with the other end of the feeding pipe (62), the other end of the main pipe (631) is connected with the highest branch pipe, the upper branch pipe is connected with the lower branch pipe, and the lowest branch pipe is connected with the inlet of the asphalt extrusion die head (61).
5. The asphalt paving defoaming method according to claim 2, wherein one end of the feeding pipe (62) has a higher level than the other end of the feeding pipe (62), a feeding shaft (67) is provided in the feeding pipe (62), the feeding shaft (67) is provided with a helical blade (68) along the axial direction, an asphalt conveying driving member (66) is provided on the feeding pipe (62), and the asphalt conveying driving member (66) is connected with the feeding shaft (67).
6. The asphalt paving defoaming method according to claim 2, wherein a height adjusting assembly (64) is provided on the frame (1), and the height adjusting assembly (64) is connected with the asphalt extrusion die head (61).
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| CN115434216A (en) | 2022-12-06 |
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