Shield tunneling machine cutter head with mud cake detecting and removing device and using method

Abstract

The invention provides a shield tunneling machine cutter head with a mud cake detecting and removing device and a using method. The mud cake detecting and removing device on the cutter head comprisesa rotary spray head, a sleeve, a telescopic cylinder, an end cover, a temperature sensor, a thrust bearing, a sealing ring and a fastener. When the cutter head is provided with a mud cake, the mud cake area and an excavation face are continuously rubbed to enable the temperature of the cutter head to rise, the cutter head stops rotating when abnormal temperature rise is monitored through the temperature sensor, an electric valve is opened, and mud cake removing operation is conducted. According to the shield tunneling machine cutter head with the mud cake detecting and removing device and theusing method, an electromagnetic reversing valve connected with the mud cake detecting and removing device is adjusted to the left position, high-pressure water enters a rodless cavity, a cylinder barrel of the telescopic cylinder is pushed to extend outwards to penetrate into the mud cake, when a spray opening is exposed out of the sleeve, the high-pressure water flow pushes the rotary spray headto rotate, and muck around the spray head is removed; and after mud cake removing is completed, the reversing valve is adjusted to the right position, the high-pressure water enters a rod cavity of the telescopic cylinder to enable the cylinder barrel to retract into the sleeve, detecting and automatic rapid removing of the cutter head mud cake are achieved, the risk of under-pressure bin entering operation is avoided, and the efficiency and safety of shield construction are improved.

Description

technical field [0001] The invention relates to the field of shield tunneling equipment manufacturing, in particular to a shield machine cutter head with a mud cake detection and removal device suitable for cleaning the mud cake on the shield machine cutter head and a use method thereof. Background technique [0002] Mud cake (also known as secondary rock block) is the fine muck particles and debris cut by the shield cutter head, which are reassembled and adsorbed in the center of the cutter head under the combined effects of cohesive force, pressure, temperature and other factors. Or near the opening around the cutter head to form a semi-solid, solid bond. The mud cake problem in shield tunneling construction is a major problem that has not been completely solved in the field of shield tunneling method construction. Once the mud cake is formed on the cutter head of the shield machine during the excavation process, it will lead to a series of problems such as a significant ...

AI Technical Summary

Problems solved by technology

(2) For the mud cake that cannot be processed by the flushing system, it needs to be manually pressed into the bin for processing

[0003] 1. The flushing nozzle of the cutter head is arranged on the surface of the cutter head, which has poor cleaning effect and low efficiency for the hardened mud cake, and the flushing port of the cutter head is easily blocked by the cut muck and rock blocks when the cutter head is excavated;

[0004] 2. Manual belt press into the warehouse has requirements on geological conditions, and it is time-consuming, risky and inefficient

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