一种(J)PCCP管芯缠丝工装及其缠丝方法
By setting a circumferential support structure on the inner wall of the (J)PCCP core and using a wire winding machine to provide circumferential support force, the problem of spiral cracks on the inner wall of the pipe was solved, and the quality and durability of the finished pipe were improved.
CN117533898BActive Publication Date: 2026-07-17HUBEI QINGLONG PIPE IND CO LTD +1
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HUBEI QINGLONG PIPE IND CO LTD
- Filing Date
- 2023-11-14
- Publication Date
- 2026-07-17
AI Technical Summary
Technical Problem
Existing technologies have failed to effectively address the problem of spiral cracks on the inner wall of (J)PCCP pipes, resulting in compromised quality and durability of the finished pipes.
Method used
A circumferential support structure is installed on the inner wall of the core tube. The circumferential support structure, together with the lifting device and the wire winding machine, provides circumferential support force to reduce the tensile stress of the concrete and eliminate or reduce the spiral cracks on the inner wall.
Benefits of technology
By providing circumferential support during the winding process, spiral cracks on the inner wall can be effectively reduced or eliminated, thereby improving the quality and durability of the finished pipe.
✦ Generated by Eureka AI based on patent content.
Smart Images
Figure CN117533898B_ABST
Abstract
本发明公开一种(J)PCCP管芯缠丝工装及其缠丝方法，属于混凝土管材技术领域，包括升降装置以及设置在所述升降装置的移动端的环向支撑结构，所述环向支撑结构包括辐向设置的伸缩臂以及连接在所述伸缩臂的移动端的支撑轮，所述支撑轮的支撑点位于管芯的内径侧，所述管芯的外径侧具有与钢丝接触的缠丝点，所述支撑点和所述缠丝点在轴向具有间距，所述支撑点跟随所述缠丝点的移动进行轴向移动，在缠丝过程中所述支撑点位于所述缠丝点轴向移动方向的后方。本发明在管芯的外壁缠绕钢丝时，在管芯的内壁设置环向支撑结构，利用环向支撑结构对内壁提供环向支撑力，能够减小管芯轴向混凝土拉应力，消除或减少或限制内壁螺旋状裂缝，提高成品管的质量和耐久性。
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