Pavement crack sealing device for road construction

Abstract

The invention relates to the technical field of auxiliary devices for road construction and pavement maintenance, in particular to a pavement crack sealing device for road construction. The pavement crack sealing device is capable of mixing and melting asphalt materials by self so as to reduce heat loss and to improve filling effect, and is also capable of automatically clearing litter from an expansion joint. The pavement crack sealing device comprises the asphalt materials, a bottom plate, a material placement tank, a material suction pipe, a hot melt kettle, a first mixing motor, a second mixing motor, a screw conveyor, a material discharging gun and a second hydraulic cylinder, wherein a partition plate is arranged inside the hot melt kettle; the partition plate divides the hot melt kettle into a material storage chamber and a material mixing chamber; a first transmission shaft is arranged at the bottom output end of the first mixing motor; the first transmission shaft is providedwith first mixing blades; a second transmission shaft is arranged at the left output end of the second mixing motor; and the second transmission shaft is provided with second mixing blades. The pavement crack sealing device also comprises an air compressor and a nozzle, wherein the bottom end of the air compressor is connected to the top end of the bottom plate; the air compressor is connected tothe nozzle through an air pipe; and a pressure reducing valve is arranged on the air pipe.

Description

technical field [0001] The invention relates to the technical field of road construction and road surface maintenance attachments, in particular to a road surface joint filling device for road construction. Background technique [0002] As we all know, due to the physical changes of thermal expansion and contraction, when building new cement concrete roads, in order to ensure that the cement concrete roads will not be damaged under the condition of temperature changes, expansion joints are set between the cement blocks, and fillers are filled in the expansion joints After a period of use of cement concrete roads, the fillers in the expansion joints age and deteriorate, and the accumulated water on the road continuously flows into the expansion joints, causing the foundation of the cement concrete road to sink, resulting in lower and lower bearing capacity of the cement concrete. , resulting in broken boards, collapse and other diseases on the concrete pavement, which serious...

AI Technical Summary

Problems solved by technology

[0002] As we all know, due to the physical changes of thermal expansion and contraction, when building new cement concrete roads, in order to ensure that the cement concrete roads will not be damaged under the condition of temperature changes, expansion joints are set between the cement blocks, and fillers are filled in the expansion joints After a period of use of cement concrete roads, the fillers in the expansion joints age and deteriorate, and the accumulated water on the road continuously flows into the expansion joints, causing the foundation of the cement concrete road to sink, resulting in lower and lower bearing capacity of the cement concrete. , resulting in broken boards, collapse and other diseases on the concrete pavement, which seriously affects traffic safety. The road surface filling device for road construction is a kind of grouting for road expansion joints in the process of road construction and maintenance, so as to facilitate better maintenance of the road surface. An accessory device, which has been widely used in the field of road surface maintenance in road construction; the existing road surface filling device for road construction includes a grouting gun and asphalt material, the inside of the grouting gun is provided with a cavity, and the left end and the right end of the grouting gun are both The feed port and the discharge port are provided, and both the feed port and the discharge port are connected to the cavity, and the bottom of the grouting gun is also equipped with a handle, and the asphalt material is placed in the cavity; the existing road construction joint filling device When using, first melt and mix the asphalt, put the asphalt material in the cavity through the feed port, then hold the handle, align the discharge port with the expansion joint to be treated, and grout it; the existing road construction pavement During the use of the joint filling device, it was found that the asphalt material needs to be melted in the outside world in advance and then placed in the cavity of the grouting gun. During the placement process, the asphalt material loses heat and hardens, resulting in poor grouting effect; The sundries are cleaned up, the work intensity is high, the work efficiency is low, and the use limitation is high

Images