Normal pressure cutterhead hob rotating speed and temperature measurement device and wear extent measurement method

Abstract

The present invention provides a normal pressure cutterhead hob rotating speed and temperature measurement device and a wear extent measurement method which solve the problem that the state monitoringof the wear extent of a hob in a normal pressure cutter cannot be carried out. Four induction magnets are arranged on a cutter ring of the hob uniformly, and a rotating speed sensor is arranged rightbelow the hob and measures the actual rotating speed of the hob. The four induction magnets separate the cutter ring of the hob into four quadrants uniformly, according to the current actual rotatingspeed of the hob, the time that the hob rotates 1 / 4 circle is calculated, the wear value of the cutter ring when the hob rotates is calculated, and according to the wear value of the cutter ring, andby utilizing a third-order Bezier curve, a hob contour wear curve is fitted, thereby obtaining the hob contour wear extent. The normal pressure cutterhead hob rotating speed and temperature measurement device and the wear extent measurement method of the present invention realize the visual management of all hob wear extents and the rotating speed on a cutterhead, at the same time, help a shielddriver to determine whether the cutterhead cutter needs to be replaced or maintained, also can help the driver to correct the tunneling parameters better to improve the tunneling efficiency, help to reduce the manpower consumption and the working risk, and also enable the tunneling efficiency to be improved.

Description

technical field [0001] The invention relates to the technical field of tool detection, in particular to a device for measuring the rotation speed and temperature of an atmospheric cutter head hob and a method for measuring wear. Background technique [0002] With the increasing demand for tunnel construction in urban construction, road traffic, and water diversion projects, the shield machine, which is a powerful tool for tunnel engineering excavation, is also increasingly widely used. Cutterheads and knives are subject to varying degrees of wear and tear during excavation. The degree of tool wear has a great impact on engineering quality and tunneling progress. Uneven tool speed is also an important reason for tool wear and partial wear. Therefore, during the tunneling process of the shield machine, the monitoring of the tool running status has become an important part of efficient tunneling. [0003] During the tunneling process of the shield machine, there will be a lo...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problem of not being able to monitor the wear of the hob in the normal pressure cutter, the present invention proposes a measuring device for the rotational speed and temperature of the hob of the normal pressure cutter head and a wear measurement method, and calculates the wear of the hob contour through the rotational speed sensor , can help the driver to better modify the tunneling parameters to improve tunneling efficiency, reduce manpower consumption and operation risks, and can also improve tunneling efficiency

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