Device for intelligently controlling travelling direction of paver

Abstract

The invention discloses a device for intelligently controlling the travelling direction of a paver, belonging to the technical field of engineering machinery. The device comprises a programmable logic controller (PLC) adopting a controller area network (CAN) bus, an edge distance sensor, a speed potentiometer, a proportional solenoid, a speed sensor and application software, wherein the edge distance sensor is used for acquiring the travelling route track and specific position of the paver and is connected with an A / D conversion module of the controller; the speed potentiometer is used for setting the speed of the paver and is connected with an A / D conversion module of the controller; the proportional solenoid is used for controlling a variable capacity pump and is connected with the controller; the speed sensor is used for acquiring the left and right motor speeds of the variable capacity pump and is connected with an A / D conversion module connected with the controller; the application software is used for managing and controlling equipment and is installed in the PLC; and the application software comprises a pavement track signal processing module, a speed sensor signal processing module, a paver travelling control integrated treatment module, a parameter calibration module, a CAN bus communication module and a display displaying treatment module. The device has the following beneficial effect: the device can realize controlling the paver to automatically travel stably along the direction of the pavement needing to be paved, thus improving the paving accuracy and quality.

Description

technical field [0001] The invention relates to a construction machinery control technology, in particular to an intelligent control device for the traveling direction of a paver, and belongs to the technical field of construction machinery. Background technique [0002] At present, asphalt paver generally adopts a closed hydraulic drive system. The variable pump drives the variable motor, and the crawler is driven by the reducer and the sprocket. Changing the displacement of the variable pump realizes stepless speed regulation, and changing the displacement of the variable motor realizes switching between the working speed and driving speed of the machine. The left and right crawlers are driven by two independent systems, and the two systems are uniformly controlled by a programmable controller to realize the functions of paver driving, steering, forward and reverse. Steering control generally adopts a manual adjustment method. By adjusting the steering potentiometer, a st...

AI Technical Summary

Problems solved by technology

With the development of road construction technology, high-grade pavements have higher and higher requirements for the position accuracy and smooth operation of the paver responsible for the final pavement paving operation. The trajectory control can meet the technical requirements of the road surface in the case of ordinary road surfaces, but it cannot guarantee the paving quality in the case of complex road surfaces.

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