Laser-control flattening bulldozer

Abstract

The invention relates to a leveling bulldozer controlled by laser; a laser signal receiver is arranged at the anterosuperior part of a shovel blade of the bulldozer, a laser controller is arranged in the cab of the bulldozer, a laser signal emitter is positioned at a proper position on a construction site; a three-unit and four-passage solenoid valve, a damping valve and a safety valve are integrated on an integrated valve block; the integrated valve block and a hydraulic control oil circuit are connected in parallel with a hydraulic pressure system of the bulldozer. The invention uses the laser signal emitter to form a reference plane with high accuracy at certain height above a work surface, the assorted laser signal receiver is arranged on the shovel blade of the bulldozer for detecting the signal of potential difference between a current leveling position and the reference plane, the signal of potential difference is processed by the controller, then is outputted to the modified hydraulic pressure system of the bulldozer to control the automatically lifting of the shovel blade of the bulldozer so as to realize the automatic control of the bulldozer. The invention is mainly applied to the rolling concrete leveling construction and the leveling occasion of other ground with large area, and the utility model has the advantages of high accuracy of operation, high speed, simple operation, and so on.

Description

technical field [0001] The invention relates to a machine suitable for leveling construction in fields such as roller compacted concrete unwinding, earth-rock dam filling, and airport farmland, in particular to a laser-controlled leveling bulldozer. Background technique [0002] At present, domestic water conservancy and hydropower projects basically use the paving thickness determined by the operator according to the rolling test, refer to the site stakeout mark, manually operate the bulldozer operating handle, control the lifting of the blade, and adjust the paving thickness. and flatness. This method has high requirements on the operator, and the operator needs to observe and manipulate many items. Not only is the labor intensity high, but also the efficiency of unclogging and paving is low. At the same time, the quality of paving is greatly affected by human factors, especially in inclined layer paving construction. It is even more diffic...

AI Technical Summary

Problems solved by technology

This method has high requirements on the operator, and the operator needs to observe and manipulate many items. Not only is the labor intensity high, but also the efficiency of unwinding and paving is low. At the same time, the quality of paving is greatly affected by human factors, especially in inclined layer paving construction. It is even more difficult to control, affecting the construction speed and quality of RCC

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