Shield / TBM hob wear measuring device and measuring method thereof

Abstract

The invention discloses a shield / TBM hob wear measuring device and a measuring method thereof. The measuring device comprises a frame body, a fastening assembly and a mobile measurement assembly. The frame body comprises a crossbeam, a fixed strut and an adjustable strut respectively arranged at two ends of the crossbeam and vertically connected with the crossbeam. The fastening assembly comprises a movable leg movably connected with the adjustable strut and a fastening bolt arranged at the lower end of the movable leg. The mobile measurement assembly includes a measuring head, a horizontal guide rail for moving the measuring head, and a vertical guide rail. The fixed end of the horizontal guide rail and the upper end of the vertical guide rail are provided with a displacement sensor respectively. The measuring device of the invention has the advantages of convenient use, high measuring precision and high efficiency, avoids the reading error of the staff compared with the measuring ruler, and can acquire the horizontal and vertical position information of the abrading and further obtain the comprehensive cross section information of the hobbing ring after wear. Through the data post-processing, it is be achieved hob two-dimensional cross-section image reproduction after wear, in order to accurately determine the hob wear category.

Description

technical field [0001] The invention relates to the technical field of tunnel construction equipment, in particular to a shield / TBM hob wear measuring device and a measuring method. Background technique [0002] As important tunnel construction equipment, shield machines and TBMs (full-face tunnel boring machines) are widely used in railway tunnels, urban rails and other projects. The disk hob in the shield machine and TBM is a key component of rock crushing, and its working environment is harsh, so the wear of the cutter is inevitable. During the construction process, it is necessary to continuously detect the wear of the hob, and obtain the wear amount of the hob accurately and comprehensively, so as to reasonably determine the replacement node. If the hob is not seriously worn and replaced in advance, it will cause waste of tools; if the hob is not replaced in time, it will cause excessive force on adjacent tools and aggravate wear. [0003] The traditional method of de...

AI Technical Summary

Problems solved by technology

If the hob is not seriously worn, replacing it in advance will cause waste of tools; if the hob is not replaced in time, it will cause excessive force on adjacent tools and aggravate wear

[0003] The traditional method of detecting hob wear is to use a measuring ruler. This measurement method is random and has low accuracy, and generally only measures the maximum wear size, which cannot effectively grasp the comprehensive information of the wear section; the online hob The cost of measurement technology is high, the cutter head needs to be modified, the reliability is insufficient, and most of them are in the research and experiment stage

Images