Sliding joint type pipeline compensator

Abstract

The invention discloses a sliding joint type pipeline compensator. The sliding joint type pipeline compensator comprises a tubular inner shell (3), outer shells (4), end covers (2) and sealing rings (1). The outer walls of the two ends of the tubular inner shell (3) are spherical surfaces, the spherical centers are located on the axis, the spherical surface parts are sleeved with the outer shells(4) separately, the inner surfaces of one ends of the outer shells (4) are spherical surfaces, annular grooves are formed in the inner walls of the other ends of the outer shells (4), the sealing rings (1) are assembled in the annular grooves, the outer shells (4) can freely slide on the inner shell (3) in the axial direction and freely rotate around the spherical center of the inner shell (3), and the end covers (2) are assembled on the end parts of the other ends of the outer shells (4); and when the outer shells (4) freely slide on the inner shell (3) in the axial direction, the inner shell(3) can make contact with the inner spherical surfaces of the outer shells (4) or the inner spherical surfaces of the end covers (2) and be braked, the outer spherical surface of the tubular inner shell (3) and the inner spherical surfaces of the outer shells (4) form a spherical revolute pair, and the inner spherical surfaces of the end covers (2) and the outer spherical surface of the tubular inner shell (3) form a spherical revolute pair.

Description

Technical field[0001]The present invention relates to a sliding joint line compensator, in particular a line compensator for aircraft high temperature and high voltage catheter system.Background technique[0002]When the aircraft high voltage catheter system is operating, due to temperature change, mechanical vibration or the like can cause deformation of the pipeline, in order to reduce the stress in the line, the compensation element is required to compensate for its deformation. Common compensation methods are corrugated tube compensators, using the elastic deformation properties of the bellows to achieve the function of compensation displacement.[0003]The specific structure mainly has a free type compensator, a lever type compensator, a pressure balanced compensator, and a spherical joint.[0004]The free-type compensator can compensate for axial, radial, and angular displacement, but due to the stretching trend in the case of pressurization, a pressure thrust is generated on both e...

AI Technical Summary

Problems solved by technology

Because it can only perform angle compensation, it needs to be arranged in the elbow pipe system and work together with the elbow pipe to compensate for the displacement of the pipeline. Displacement compensation cannot be performed for the displacement in the straight pipe pipe system

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