Shield tail brush dynamic sealing pressure resistance test equipment

Abstract

The invention belongs to the technical field of test equipment, and relates to shield tail brush dynamic sealing pressure resistance test equipment. The equipment comprises a base, a support frame spanning the middle part of the base, a simulated shield tail steel cylinder pivoted above the support frame, a transmission track horizontally penetrating through the axial hollow part of the simulatedshield tail steel cylinder, and a simulated segment and a self-sealing steel cylinder which can move along the transmission track, wherein the simulated segment and the self-sealing steel cylinder arerespectively disposed at two sides of the simulation shield tail steel cylinder. The outer diameters of the simulated segment and the self-sealing steel cylinder are smaller than the inner diameter of the simulation shield tail steel cylinder, and the axes of the simulated segment and the self-sealing steel cylinder are collinear with the horizontal axis of the simulation shield tail steel cylinder; the inner wall of the simulation shield tail steel cylinder is provided with a plurality of oil receiving ring grooves used for installing shield tail brushes in a mirror symmetry mode, the innersides of the oil receiving ring grooves are communicated with a plurality of pressure sensors, and the bottom of the simulation shield tail steel cylinder is provided with a segment gap adjusting device used for adjusting the angle. The structure can simulate the dynamic process of the shield tunneling machine, and can test the wear resistance and dynamic sealing performance of the shield tail brush at the same time.

Description

technical field [0001] The invention relates to the technical field of testing equipment, in particular to a shield tail brush dynamic sealing pressure-resistant testing equipment. Background technique [0002] Shield machine, the full name is shield tunnel boring machine, is a kind of special engineering machinery for tunnel boring. Modern shield boring machine integrates light, machinery, electricity, hydraulic, sensing and information technology, and has the ability to excavate and cut soil. Body, rock, soil ballast conveying, tunnel lining assembly, measurement guidance and deviation correction, etc., involving geology, civil engineering, machinery, mechanics, hydraulics, electricity, control, measurement and other disciplines and technologies, and "tailor-made" according to different geology Type design and manufacture, high reliability requirements. Shield boring machines have been widely used in subway, railway, highway, municipal, hydropower and other tunnel project...

AI Technical Summary

Problems solved by technology

[0003] With the development of urban construction in our country, underground rail transit, cross-river tunnels and other underground projects are increasing day by day, and the shield tunneling distance is getting longer and longer. Strictly, the pressure-resistant sealing performance of the shield tail seal brush directly affects the sealing safety of the construction process. At present, there is no uniform testing standard for the pressure resistance performance of the shield tail seal brush in China, and the performance of the product cannot be judged. It is completely based on experience. Often the shield tail seal brush cannot meet the actual sealing and pressure resistance requirements during use. The original equipment is a static pressure test equipment, which cannot be displayed dynamically according to the actual construction, and cannot reflect the dynamic pressure resistance effect.

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