Breaking control method of excavator, controller of excavator and excavator

Abstract

The embodiment of the invention provides a breaking control method of an excavator, a controller of the excavator and the excavator, and relates to the technical field of engineering machinery. The breaking control method of the excavator comprising the steps of obtaining a signal characterizing the position relationship between a breaking hammer body and a drill rod; and controlling an oil line system according to the signal, and thus enabling a power oil cylinder to be in a floating state. In the breaking process, the position between the breaking hammer body and the drill rod changes, the fact indicates that the drill rod contacts an object to be broken, such as stone. At the moment, the power oil cylinder is in the floating state, the power oil cylinder does not provide power to a working arm, and the working arm falls under the action of gravity and compacts the drill rod by gravity, so that the method solves the problems that no hit or excessive vibration exists and a crawler belt is jacked up as the drill rod does not fall in place or falls too much due to improper operation.

Description

technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an excavator crushing control method, an excavator controller and the excavator. Background technique [0002] Excavators are commonly used construction machinery in the process of engineering construction, and breakers, as one of the most common accessories in excavators, are widely used in mines, railways, highways, municipal and other workplaces. [0003] Existing excavators require a high level of operation for the operator during the crushing operation. During the operation, if the chisel rod of the breaker is not lowered in place, it will cause the phenomenon of "dry strike" of the breaker and damage the breaker; If the drill rod of the breaking hammer is lowered too much, it will cause additional stress on the breaking hammer, the crawler of the excavator will be jacked up, the vibration will increase during operation, and unnecessary damage will be caused to...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention includes, for example, to provide a crushing control method for an excavator, which can reduce the operating requirements during crushing operations, and improve the problems of knock-out or excessive vibration and crawler belt jacking during crushing.

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