Longitudinal contraction joint cutting machine for asphalt concrete pavement

Abstract

The invention relates to a longitudinal contraction joint cutting machine for asphalt concrete pavements. The longitudinal contraction joint cutting machine comprises two bottom plates, traveling wheels, traveling assisting devices, a mounting frame, a cutting device and a protective device, wherein traveling wheels are mounted at the lower ends of the two bottom plates; the traveling assisting devices are mounted on the upper ends of the bottom plates; the upper ends of the traveling assisting devices are connected to the mounting frame; the cutting device is mounted at the lower end of the mounting frame; the protective device is arranged outside the cutting device; the protective device is mounted at the lower end of the mounting frame; and the traveling assisting devices comprise powermechanisms and traveling assisting mechanisms. The longitudinal contraction joint cutting machine for the asphalt concrete pavements is capable of solving the problems of poor working stability, unsatisfactory cutting effect, heavy dust, hidden dangers and the like in the existing longitudinal contraction joint cutting process of bends, realizing the function of automatic longitudinal contractionjoint cutting of the bends, and achieving the advantages of good working stability, good cutting effect, light dust, high safety and the like.

Description

technical field [0001] The invention relates to the field of asphalt concrete processing equipment, in particular to a longitudinal shrinkage joint cutting machine for asphalt concrete pavement. Background technique [0002] Concrete is mainly divided into asphalt concrete and cement concrete. At present, asphalt concrete is the most widely used. The upper layer of asphalt concrete pavement is composed of concrete panels with a certain thickness, which has the property of thermal expansion and contraction. Due to changes in temperature throughout the year, concrete will expand and contract to varying degrees. And within a day and night, when the daytime temperature rises, the temperature of the top surface of the concrete slab is higher than that of the bottom surface, and this temperature gradient will cause the middle part of the slab to protrude. When the temperature drops at night, the temperature of the top surface of the concrete slab is lower than that of the bottom ...

AI Technical Summary

Problems solved by technology

[0003] In order to make up for the deficiencies of the prior art, the present invention provides a longitudinal shrinkage joint cutting machine for asphalt concrete pavement, which can solve the problems of poor working stability, unsatisfactory cutting effect, large dust and the presence of Safety hazards and other issues, can realize the function of automatic longitudinal shrinkage joint cutting on the curve, with the advantages of good working stability, good cutting effect, small dust and high safety.

Images