Initial milling control system of road surface milling machine

Abstract

The invention discloses an initial milling control system of a road surface milling machine. The initial milling control system comprises an initial milling button, a milling depth sensor, a controller, a first solenoid valve, a second solenoid valve, a third solenoid valve, a rear supporting leg hydraulic pump, a front supporting leg hydraulic pump, a walking pump PID (Proportion Integration Differentiation) adjuster and a walking motor, wherein the initial milling button and the milling depth sensor are connected with a signal input end of the controller; a signal output end of the controller is connected with the first solenoid valve, the second solenoid valve and the third solenoid valve; the first solenoid valve is connected with the rear supporting leg hydraulic pump; the second solenoid valve is connected with the front supporting leg hydraulic pump; the third solenoid valve is connected with the walking pump PID adjuster; the walking pump PID adjuster is connected with the walking motor and is used for controlling the walking motor to move. According to the initial milling control system, the landing point height of a milling drum is not changed and the milling depth is controlled; the depth and the planeness of a milled road surface are guaranteed.

Description

technical field [0001] The invention relates to a road surface milling machine, in particular to an initial milling control system of a road surface milling machine, which belongs to the technical field of road surface engineering machinery. Background technique [0002] Road milling machine is a kind of road construction machinery, such as figure 1 As shown, when the existing road milling machine starts milling, it first runs on the spot and lowers the milling drum. After the required milling depth is reached, the forward handle is pushed, and the milling machine moves forward to realize the milling operation. . At this stage, if figure 2 As shown, the rear crawler has a process of entering from the original road surface height to the currently milled road surface. At this time, because the rear crawler is continuously lowered, resulting in the lowering of the vehicle body, the actual milling depth will be corresponding to the depth required by the project. increase. T...

AI Technical Summary

Problems solved by technology

The whole process is entirely dependent on manual intervention, and it is often adjusted passively after an abnormality is discovered. The response is lagging, and over-adjustment may occur. The above-mentioned method will cause the problem of uneven road surface, so the method of manual control cannot solve this problem.

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