Shield earth pressure balance system and control method reutilizing inertial energy

Abstract

The present invention discloses shield earth pressure balancing system and control method re-utilizing inertia energy. During regulating rotation speed of the screw conveying machine to realize the balance control of shielding earth bin, the positive and reverse displacement regulation of the variable motor / pump in constant hydraulic network is utilized in converting work condition of the conversion pump and the motor so as to recover the inertia energy of the load in hydraulic energy form in deceleration and braking of the screw conveying machine and convey the hydraulic energy to the load in acceleration. Compared with traditional shield earth pressure balancing system, the system of the present invention makes the prime mover operate in high efficiency area to raise the operation efficiency of the whole system.

Description

technical field [0001] The invention belongs to the field of tunnel machinery, and relates to a shield earth pressure balance system and a control method, in particular to a shield earth pressure balance system and a control method for reusing inertial energy. Background technique [0002] With the rapid development of urban construction and the rapid expansion of urban population, urban diseases such as shortage of construction land, crowded living space, traffic congestion, backward infrastructure, ecological imbalance, and environmental deterioration have appeared in many cities to varying degrees, which have brought great harm to people's living and living. It has a great impact and also restricts the further development of the city's economy and society. The development and utilization of underground space has become an important way for cities to realize three-dimensional traffic and improve operational efficiency. For this reason, significant progress has been made i...

AI Technical Summary

Problems solved by technology

[0009] The present invention mainly aims at the problems of low earth pressure balance control accuracy, slow system response speed and high energy consumption in current shield machines, and proposes a shield earth pressure balance control principle based on a hydraulic constant pressure network. In the above, a shield earth pressure balance control method for reusing the inertial energy of the screw machine was proposed, and a shield earth pressure balance system for reusing the inertial energy was designed and manufactured.

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