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针对目前核电筒体自动探伤机械支撑系统的高转速、高精度防轴窜问题,提出了一种具有空间偏转调节特征的新型防窜动机械调节机构。建立了支撑系统托辊与核电筒体轴向窜动关系的数学模型,通过模型仿真,研究分析了托辊调节角对托辊与筒体间螺旋角的影响。针对核电筒体螺旋运动与托辊不匹配问题,提出了一种基于轴向力负反馈的闭环调节系统,实现了对筒体轴向窜动的精确控制。
Aiming at the problem of high speed and high precision anti-shaft channeling of the mechanical supporting system of automatic detection of nuclear torch body, a new anti-channeling mechanical adjusting mechanism with space deflection adjustment feature is proposed. The mathematical model of the relationship between the axial movement of the supporter roller and the nuclear power cylinder was established. Through the simulation of the model, the influence of the roller adjustment angle on the helix angle between the roller and the cylinder was studied. Aiming at the mismatch between the helical movement of the nuclear torch and the idler, a closed-loop adjusting system based on the negative feedback of the axial force was proposed to realize the precise control of the axial movement of the cylinder.