An automatic tester for the flexibility of plastic bellows used in prestressed concrete bridges

Abstract

The invention provides a plastic corrugated pipe flexibility automatic detector for a prestressed concrete bridge. The detector comprises a detection pedestal and a movement module; the movement module is arranged on the detection pedestal; the movement module comprises a transverse movement module, a longitudinal movement module, a rotating module and a clamping piece; the transverse movement module and the longitudinal movement module are arranged to be stacked, the rotating module is arranged on any one of the transverse movement module or the longitudinal movement module, and the clampingpiece is arranged on the rotating module; by means of combination of the transverse movement module, the longitudinal movement module and the rotating module, the clamping piece can drive a corrugatedpipe to do left-right bending motion. According to the technical scheme, related provisions of JT / T 529-2016 pre-stressed concrete bridge plastic corrugated pipes can be met, flexible detection is conducted, the structure is simple, and the automation degree is high; the labor intensity of an inspector is relieved, and the batched detection is facilitated.

Description

technical field [0001] The invention relates to the technical field of detection of plastic corrugated pipes for prestressed concrete bridges, in particular to an automatic detector for the flexibility of plastic corrugated pipes for prestressed concrete bridges. Background technique [0002] The plastic corrugated pipe for prestressed concrete bridge is a kind of plastic corrugated pipe with high-density polyethylene resin (HDPE) or polypropylene (PP) as the main raw material, which is formed by hot-melt extrusion. The appearance of the corrugated pipe should be smooth, uniform in color, and the inner and outer walls are not allowed to have partition rupture, air bubbles, cracks, hard blocks and scratches that affect the use. The quality indicators of plastic bellows for prestressed concrete bridges include ring stiffness, local lateral load, flexibility, and impact resistance, among which the flexibility of plastic bellows for prestressed concrete bridges is an important i...

AI Technical Summary

Problems solved by technology

This method has a low degree of automation, and the tester is prone to errors, resulting in inaccurate test results; manual testing in accordance with relevant regulations is inefficient, and the labor intensity of the tester is high

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