一种中口径流体输送用无缝钢管旋转夹持设备及使用方法

By using a double-row cylindrical self-aligning bearing and an adaptive self-aligning and buffering assembly with a damping structure, the problem of axial misalignment caused by tangential force and friction during the rotational clamping of seamless steel pipes was solved, achieving stable clamping and high-precision machining.

CN121624481BActive Publication Date: 2026-07-17SHANDONG SHENGLI CHANGLONG PIPELINE TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHANDONG SHENGLI CHANGLONG PIPELINE TECH CO LTD
Filing Date
2026-01-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

During the rotational clamping process of existing seamless steel pipes, the tangential force and friction cause the axis to misalign, resulting in the chuck and steel pipe being unable to be coaxial, the clamping force being unstable, and high-precision processing being impossible.

Method used

It adopts double-row cylindrical self-aligning bearings and a damping structure. Through adaptive self-aligning and buffer components, it tracks the bending changes of the steel pipe in real time, ensuring surface contact between the jaws and the steel pipe. It also absorbs vibration energy through elastic elements, thereby improving clamping stability.

Benefits of technology

It achieves stable clamping of steel pipes during rotation, eliminates local stress concentration and clamping force pulsation, improves processing accuracy and dynamic stiffness, suppresses vibration, and ensures high-precision processing.

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Abstract

本发明公开了一种中口径流体输送用无缝钢管旋转夹持设备及使用方法,涉及钢管加工技术领域。该中口径流体输送用无缝钢管旋转夹持设备,包括机架、钢管、机箱以及支撑架,还包括:卡盘组件,同轴转动安装于机箱和支撑架上,用于钢管两端固定。通过双列圆柱调心轴承作为主轴套的支撑,实现了主轴套的被动自适应调心,使得驱动端的卡盘组件能够实时追随钢管实际弯曲变化的瞬时回转轴线,而非强迫工件符合设备理论轴线,解决了传统刚性夹持下因强制对中而产生的卡爪与钢管表面螺旋线接触、局部应力集中以及夹持力周期性脉动衰减的问题,从源头上确保了夹持初期和旋转过程中,卡爪与钢管外缘始终保持稳定、均匀的面接触,消除了轴向窜动。
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