Ultrasonic real-time monitoring device for shield machine cutter anti-abrasion block thickness abrasion loss

Abstract

An ultrasonic real-time monitoring device for shield machine cutter anti-abrasion block thickness abrasion loss comprises a tool (6), a central revolution body (7), a cutter plate (10), a front shield (11), a middle shield (12), a tail shield (13), a main control room (14), a cutter head (15), an anti-abrasion block (16), a fixing body (29) and a cutter seat (31). An ultrasonic energy exchanger (1) is arranged inside an inner thread through hole (19) in a configuring mode and a thickness tester (2) is arranged at the rear end of the inner thread through hole (19), wherein the inner thread through hole is matched with the cutter head in drilling. An ultrasonic energy changer signal line (8) is connected with the thickness tester, the central revolution body is matched with a through hole (28) in drilling, electric sliding ring devices (3) are arranged at the rear ends of the central revolution body and the fixing body in a matching mode, a thickness tester signal line and a power source line (9) are in butt joint with a bunch of rotor guide lines (25), and the signal line and the power source line are connected with a personal computer (PC) (4) inside the main control room and an alternating-direct-current power source (5) after passing through the middle shield and the tail shield. Therefore, the problem that the anti-abrasion block is difficult to monitor is solved.

Description

technical field [0001] The invention belongs to the technical field of shield machine monitoring, and in particular relates to an ultrasonic real-time monitoring device for the wear amount of the wear resistance block of a shield machine tool. Background technique [0002] The wear of the wear-resistant block of the cutter is one of the biggest problems encountered by the shield machine in the construction of composite strata. At present, it is difficult to monitor the wear of the wear-resistant block of the shield machine in real time. When the wear-resistant block of the middle tool is severely worn, the shield machine tool can be passively inspected under pressure. However, the under pressure inspection usually takes a long time, which not only affects the construction progress, but also has a high safety risk. [0003] There are also methods of embedding oil pipes or adding odorants to judge the wear degree of the wear-resistant block of the shield machine tool. This met...

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Problems solved by technology

[0004] In order to solve the above problems, the present invention designs an ultrasonic real-time monitoring device for the wear amount of the thickness of the wear-resistant block of the shield machine tool. The slip ring device transmits the monitoring signal to the PC in the control room of the tail shield by means of wired transmission. At the same time, the alternating direct power supply in the control room of the tail shield also provides continuous power supply guarantee for the thickness gauge through the electric slip ring device, which solves the problem of shield tunneling. The problem that the machine cannot monitor the wear amount of the tool wear block in real time during the construction process

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