Hydraulic pressure automatic leveling method and leveling system for ladle car

Abstract

The invention discloses a hydraulic automatic leveling method of a ladle car and the leveling system thereof. Firstly the leveling system is divided into an X direction and a Y direction according to the car body plane and is equipped with two tilt sensors corresponding to the X direction and the Y direction, and four groups of suspension oil cylinders and position sensors corresponding to the four groups of suspension oil cylinders are arranged between the tyre and the car body on the ladle car; a controlling unit picks up the horizontal position signals of the car body and the position signals of the suspension oil cylinders in real time through the circulation of the tilt sensors and the position sensors, the highest supporting point of the car body at certain moment is judged by the inclination angle value, and the distance difference of the other three points and the highest point is calculated through the size of the inclination angle and the actual physical distance of the four groups of suspension oil cylinders in the X direction and in the Y direction; the highest point is taken as the reference point and keeps unchanged, and the other three points are adjusted to approach the highest point through controlling the fluctuation of the suspension oil cylinders according to only rising without descending method, until the car body is up to the level position. The invention can automatically adjust the car body posture of the ladle car according to the actual condition during the driving process, thereby avoiding the condition of inclination or center deviation.

Description

technical field [0001] The invention mainly relates to the technical field of construction machinery control, in particular to a hydraulic automatic leveling method and a leveling system for a molten iron chartered car. Background technique [0002] In the prior art, the molten iron charter car for metallurgy is a special-purpose transport vehicle, which is mainly used for the transportation of high-temperature liquid molten iron in the iron and steel smelting production process. During use, when the ladle car is driving on an uneven road or turning, the molten iron in the cans on the ladle car will tilt and the center of gravity will deviate. This situation is very unfavorable, and may cause major accidents in severe cases. And so far, the conventional solution is to install a simple control suspension oil cylinder on the ladle car to realize the rise and fall of the vehicle body, but there is no real-time adjustment according to the actual situation of the road surface to...

AI Technical Summary

Problems solved by technology

This situation is very unfavorable and may cause major accidents in severe cases

And so far, the conventional solution is to install a simple control suspension oil cylinder on the ladle car to realize the rise and fall of the vehicle body, but there is no real-time adjustment according to the actual situation of the road surface to keep the level of the vehicle body as far as possible. flat system

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