Long Auger To Drill The Mechanical Behavior And To Drill The Hydraulic Control System

In recent years, the continuous flight auger has obtained the widespread application and market potential in the construction field, relying on its superiority such as broad compatibility, environmental protection and so on. But this kind of machine on present still exist massive questions including the insufficient design theory, the difficulty that it develops to the high efficiency, the low automaticity and the unreliable quality .These questions will hinder its further development seriously and affect its future market competitiveness.This article' first carries on the comprehensive analysis to the drilling-out strength, using the knowledge of soil mechanics. And it has provided the theory that basis for the determination the main parameter to the hydraulic winch of continuous flight auger. Then it uses the electro-hydraulic proportional load-sensitive variable displacement piston pump in the hydraulic control system design, and has guaranteed the full using to the installed capacity and the small system energy loss. It also has solved the questions such as the heating of traditional continuous flight auger and the system energy conservation.This article that basis results by carry-drilling mechanics theory enactmented paremeter designs control system of hydraulic winch fiting lenth of service.Simultaneously it carries on the velocity modulation and uses the electro-hydraulic proportional control valve, so builds the foundation for the automated control. Because uses the load sensitive pump in designed hydraulic control system,so enhance the precision of the control systemIt and envoid the affect of the load's varibility and solves effectively the system energy conservation questions.because of taking the electro-hydraulic proportional ,the control timing range get larger and the foundation for the automation drilling-out control has been built.Finally, it carries on the modeling simulation analysis to the system. Through the simulation tracing analysis, we can know the safe reliable of winch system performance that using the load sensitive pump and electro-hydraulic proportional control valve, and also know that this system can meet the operation requirements.