Guiding type corrugated limiter

Abstract

The invention discloses a guiding type corrugated limiter which is composed of a cover plate, corrugated tubes, a guiding sleeve, a base plate and a core shaft. The guiding sleeve is a thin wall shaft sleeve internally provided with a circular bead, a notch is formed in the opening portion of the right end of the guiding sleeve, the corrugated tubes are arranged outside the centered guiding sleeve, and the core shaft is arranged in the guiding sleeve in a clearance fit mode. The cover plate is respectively connected with the left end face of the guiding sleeve and the left end faces of the corrugated tubes in a sealed mode, and the base plate is installed on the core shaft in a sleeved mode, abuts against the right end face of the guiding sleeve, and is respectively connected with the right ends of the corrugated tubes and the core shaft in a sealed mode to form a linkage structure. The circular bead arranged in the guiding sleeve is of the structure that concave portions and convex portions are alternatively arranged on the same circumference, the shape of the cross section of the large end face of the core shaft is the same as the shape of the circular bead arranged in the guiding sleeve, and the core shaft is in clearance fit with the guiding sleeve to form an anti-torque structure for straight going of the core shaft. The waveform axial sections of the corrugated tubes in the guiding type corrugated limiter are in omega shapes, the tube walls of the corrugated tubes are smooth, thick, reasonable in stress and even in elastic deformation, limitation is accurate, and the corrugated tubes are particularly suitable for working under the high-temperature and high-pressure working conditions.

Description

technical field [0001] The present invention relates to a pipeline safety device, in particular, the present invention relates to a limit device relying on the elastic deformation of a bellows, especially a bellows limiter limited to axial compensation. Background technique [0002] The 30,000 KVA electric furnace used in the iron and steel manufacturing industry is a heavy-duty equipment. The hydraulic power system is high-temperature and high-pressure. Frequent movements in the production process cause unequal internal stresses in the connecting pipes between adjacent equipment. Among them, the most destructive Internal stress is axial thrust. In order to ensure safe production, corresponding pipe stoppers must be installed in the connecting pipes between these devices to absorb the axial thrust. The supporting pipe stoppers in engineering usually use U-shaped, S-shaped and V-shaped bellows as elastic elements. Although the bellows used in the prior art products are suff...

AI Technical Summary

Problems solved by technology

[0003] The present invention mainly aims at the problem that the prior art products have more than enough flexibility and insufficient anti-rotation ability, and propose a guided corrugated stopper suitable for supporting heavy equipment. The bellows in the stopper have a reasonable structure, both rigidity and flexibility, and flexible compensation , Strong pressure resistance, and only axial displacement under the guidance of the guide structure

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