Online detection device for abrasion to disc cutter of hard rock tunnel boring machine

Abstract

The invention discloses an online detection device for abrasion to a disc cutter of a hard rock tunnel boring machine. The online detection device comprises a cutter shaft, a cutter ring, a thickness detection sensor, a signal processing integrator, a support frame, a signal output device, a wireless transmitting device and a wireless receiving device. The thickness detection sensor, the signal processing integrator, the support frame and the signal output device are sequentially arranged in the cutter ring and a cutter body from outside to inside in the radial direction. The signal output device is composed of an electric brush and a slide groove, wherein the slide groove is composed of three sections of contact arcs and three sections of connecting arcs, the central angle of each contact arc is 100 degrees, and the central angle of each connecting arc is 20 degrees. One end of a data line groove in the cutter shaft leads to the slide groove, and the other end of the data line groove in the cutter shaft leads to the portion, outside an end face of the cutter shaft, of the wireless transmitting device. The wireless transmitting device is arranged on a cutter head, the wireless receiving device is arranged on a front shield of the tunnel boring machine, and the wireless receiving device is connected to a TBM main control room through a data line. The online detection device can detect the abrasion to the disc cutter on line and can also judge whether plane abrasion occurs to a working tool or not, and the downtime can be shortened.

Description

technical field [0001] The invention relates to a TBM disc-shaped hob inspection and measurement device, which is used for online detection of the wear amount of the hob on the cutter head in the hard rock roadheader industry. Background technique [0002] With the investment in national infrastructure, large-scale projects have appeared in various industries, especially railway and water conservancy projects. In order to shorten the construction period and reduce costs, usually the construction unit adopts straight line construction. In this way, many problems and difficulties will be encountered in the construction, such as encountering mountains and rivers. Although blasting construction has been relatively mature, its working environment is dangerous and construction efficiency is low. The hard rock tunnel boring machine puts multiple processes of tunnel construction, such as excavation, step change, support, transportation and maintenance, in parallel at the same time...

AI Technical Summary

Problems solved by technology

However, this method is summed up in construction examples, and its general applicability is poor.

However, there are few patents on the on-line detection of hob wear of hard rock tunnel boring machines

Images