Large-section rectangular tunnel boring machine rear propulsion system control device and control method

Abstract

The invention provides a large-section rectangular tunnel boring machine rear propulsion system control device comprising a total station, a surface control room, a surface control cabinet, a hydraulic pump station, a hydraulic valve set, left and right rear propulsion cylinder sets, a laser length sensor, and a pressure sensor. The total station is disposed a start operation wellhead. The surface control room comprises a surface console, an operating touch screen and a control computer PLC master station. The surface control cabinet is connected with the surface control room through a CC-LINK network and comprises a frequency converter and a surface control computer PLC slave station. An underground control computer PLC slave station of an underground control cabinet is communicated with the surface control computer PLC slave station through the CC-LINK network. The hydraulic pump station is connected with the frequency converter. The hydraulic valve set is connected with the hydraulic pump station through a hydraulic oil pipe. The left and right rear propulsion cylinder sets are connected with the hydraulic valve set. The laser length sensor and the pressure sensor are disposed on fixing racks of the left and right rear propulsion cylinder sets respectively. The hydraulic valve set, the left and right rear propulsion cylinder sets, the laser length sensor and the pressure sensor are respectively communicated with the underground control computer PLC slave station.

Description

technical field [0001] The invention relates to the field of mechanical technology, in particular to a control device and a control method for a rear propulsion system of a large-section rectangular tunnel boring machine. Background technique [0002] Various types of circular and other small-diameter roadheaders are driven by the hydraulic cylinder in the rear propulsion system during the excavation construction, and the driving force of the roadheader body is small. , is easier to control. However, the rectangular roadheader with a large cross-section (a cross-section of 6 meters × 4 meters or more) is different from circular and other forms of roadheaders. Because of its large cross-section and large-width rectangular characteristics, the roadheader can be used in the initial and subsequent stages of excavation. , it will be affected by forces from various directions, especially the jacking force on the left and right sides of the back push, which is usually easy to form...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a large-section rectangular tunnel boring machine rear propulsion system control device and control method to solve the problem that the existing large-section rectangular tunnel boring machine deviates from the design axis during the excavation stage and cannot accurately reach the terminal receiving well

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