Distributed multi-point synchronous electro-hydraulic servo control system for tunnel model test platform

Abstract

The invention discloses a distributed multi-point synchronous electro-hydraulic servo control system of a tunnel model test platform, which is characterized in that it includes a control module, an oil tank, a first variable pump, a second variable pump, a third variable pump, a first control valve, a second control valve, the third control valve, the fourth control valve, the fifth control valve and the execution module; the advantage is that the first control valve, the second control valve, the third control valve, the fourth control valve and the The opening and closing states of the five control valves form a series-parallel structure with the oil passages flowing out from the outlet of the first variable pump, the second variable pump and the third variable pump. The oil supply of the hydraulic cylinder group can realize joint oil supply by controlling the opening and closing states of the fourth control valve and the fifth control valve, and can supply oil in any combination. It can be flexibly arranged according to the load requirements, which can not only achieve Energy-saving effect, but also can achieve the effect of mutual backup oil circuit.

Description

technical field

[0001] The invention relates to an electro-hydraulic servo control system, in particular to a distributed multi-point synchronous electro-hydraulic servo control system of a tunnel model test platform. Background technique

[0002] In the process of tunnel construction, in order to ensure the safety of the segment during construction, it is necessary to detect the deformation characteristics and load characteristics of the segment in advance. The overall average state when subjected to a constant load. However, the deformation at one position of the segment will affect the surrounding parts, and in the actual construction environment, the load characteristics of the soil layer at different positions will change at any time with the progress of the construction. The pressure of the segment also changes accordingly. Therefore, the segment detected by the constant load method is easy to be damaged in a local position during actual construction. Contents of the...

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