Automatic alignment control device and method of spraying joint of asphalt spraying paver

Abstract

The invention discloses an automatic alignment control device and an automatic alignment control method of a spraying joint of an asphalt spraying paver. Automatic alignment of the spraying joint is achieved by program control and subsection time delay at the beginning stage and the stopping stage of spraying and paving aiming at the layout of a subsection spraying rod of the asphalt spraying paver. The control device comprises a controller, a touch display, a speed sensor, an angle sensor, a front nozzle valve bank, a lateral nozzle valve bank, and a rear nozzle valve bank. The control method comprises the following steps: (1) collecting an instruction and data; (2) calculating the delay time t1 from the front nozzle valve bank to the front end of the lateral nozzle valve bank; (3) calculating the delay time t2 of two adjacent nozzle valves in the lateral nozzle valve bank; (4) calculating the delay time t3 from the rear end of the lateral nozzle valve bank to the rear nozzle valve bank; (5) carrying out delay control by the controller at the beginning stage of spraying and paving; and (6) carrying out delay control by the controller at the finishing stage of spraying and paving. By adopting the delay control process, automatic alignment of the spraying edge at the joint of the pavement is perfectly achieved; material waste and pavement pollution are avoided.

Description

technical field [0001] The invention belongs to the technical field of asphalt spreading paver, in particular to the technical field of asphalt spreading paver with segmented spray bar layout. Background technique [0002] Asphalt spreading paver is a road construction machine that realizes simultaneous spreading and paving of modified emulsified asphalt and asphalt mixture. The spraying of emulsified asphalt is realized by multiple nozzle valves installed on the spraying rod. The installation of the spraying rod must ensure that the emulsified asphalt material sprayed on the ground will not be crushed and damaged by the walking track of the machine. In view of this, the spraying boom generally adopts the following two layouts: one is the integrated spraying boom layout, all nozzle valves are installed on the same fixed-angle spraying boom, and the spraying boom is placed behind the track; Segmented spraying rod layout, the nozzle valve is installed on multiple spraying rod...

AI Technical Summary

Problems solved by technology

[0006] Based on the above defects in the prior art, the technical problem to be solved by the present invention is to provide an automatic alignment control device and method for the spray joints of an asphalt spreading paver to solve the problems caused by the layout of the existing segmented spray bars. The problem that the spraying edge cannot be aligned at the joint of the road surface makes the paver ensure that the spraying edge is aligned at the joint of the road surface at the beginning or end of the spraying paving to achieve a perfect spraying effect and avoid material waste and road pollution

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