A crawler vacuum compaction device and method
A vacuum pressure, crawler-type technology, applied in the direction of roads, road repair, roads, etc., can solve problems such as obstruction and compaction, and achieve the effect of improving the rebound problem, easy implementation and simple structure
Inactive Publication Date: 2018-03-30
CHANGAN UNIV
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Problems solved by technology
[0005] The object of the present invention is to provide a crawler-type vacuum compaction device and method to solve the problem that the formation of closed air bubbles in the asphalt mixture hinders compaction
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[0027] Specific embodiments of the present invention are provided below, and it should be noted that the present invention is not limited to the following specific embodiments, and all equivalent transformations done on the basis of the technical solutions of the present application all fall within the scope of protection of the present invention.
[0028] Comply with the above technical solutions, such as Figure 1 to Figure 3 As shown, this embodiment provides a crawler-type vacuum compaction device and method, in which the air in the asphalt mixture being compacted is sucked out in a vacuum environment to promote compaction.
[0029] A crawler-type vacuum compaction device of the present invention comprises a rubber layer 4, a traveling mechanism and a gas distribution mechanism;
[0030] The rubber layer 4 evenly wraps the crawler belt 5 of the walking mechanism; the rubber layer 4 is provided with three kinds of channels, one is the first radial channel 21 on the outer ed...
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The invention discloses a crawler-type vacuum compaction device and method. A crawler is evenly wrapped by a rubber layer, and the rubber layer is matched with the crawler. A sealing cover plate is arranged in an inner ring of the rubber layer, four steel sheets are fixed to the lower end face of the sealing cover plate, and two parallelly-arranged rubber seal rings are installed on the sealing cover plate. A sealed air suction cavity is formed above the grounding end among the sealing cover plate, the rubber seal rings and the steel sheets, and two air blowing cavities are formed on two sides of the air suction cavity. Radial pore channels, communicated with the air suction cavity, at the grounding section of the rubber layer are in contact with the ground to form an airtight space, and the airtight space is very small. The air suction cavity undergoes air suction through a sucking pump to form vacuum, air in an asphalt mixture material at the grounding section is constantly sucked out under the vacuum effect, the compaction hindering effect of gas on the asphalt mixture material is eliminated, and energy consumption is reduced, and the compaction quality and compaction effect are obviously improved. In addition, the sucking pump blows air towards the pore channels covered by the air blowing cavities to blow off blockages in the pore channels and achieve self cleaning, and continuous and effective work of the compaction device is ensured.
Description
technical field [0001] The invention belongs to the field of engineering machinery, in particular to a crawler-type vacuum compaction device and method. Background technique [0002] Compaction machinery has been widely used in highway construction projects. The compaction quality is an important index to measure a compaction machinery. It is affected by various aspects, such as the physical characteristics of the machinery itself and the asphalt mixture. As far as asphalt mixture is concerned, asphalt mixture is a complex three-phase system composed of gas phase, liquid phase and solid phase. During the compaction process, it is necessary to remove the gas phase as much as possible, rearrange the liquid phase and solid phase, and reduce the porosity. The air in the asphalt mixture mainly has two parts, one part is the free gas existing in the open pores connected to the atmosphere, and the other part is the closed gas existing in the closed pores in the form of bubbles. Ge...
Claims
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IPC IPC(8): E01C19/23E01C19/26
CPCE01C19/23E01C19/236E01C19/26E01C19/264
Inventor 陈世斌姚运仕王娜张民东冯忠绪史秀平崔先觉龚育超
Owner CHANGAN UNIV