Probe for steel rail and weld joint integrated flaw detector

The utility model belongs to the technical field of steel rail ultrasonic flaw detectors, and particularly relates to a probe for a steel rail and weld joint integrated flaw detector, which comprises a plurality of probe frames arranged at the bottom end of a vehicle body of the flaw detector, probe rings fixed by probe ring shaft nuts on two sides of probe frame bodies, and probe shells fixed in the probe rings through probe lock nuts. A probe is sleeved in the probe shell, a sub-probe is wrapped and fixed in an inner cavity of the probe, and a sub-probe body is formed by fixing a sound transmission block and an upper wafer; the probe adopts a single-crystal and shared structure, so that a near-field blind area is eliminated, the close-range scanning sensitivity is improved, and the size of the probe is reduced. 本实用新型属于钢轨超声波探伤仪技术领域，具体涉及一种用于钢轨及焊缝一体化探伤仪的探头，包括探伤仪的车体底端设置若干个探头架，探头架本体两侧的探头环轴母固定探头环，探头环内通过探头锁母固定探头外壳，探头外壳内套装探头，探头内腔包裹固定子探头，子探头本体由透声块与上方晶片固定构成；该探头采用单晶、共享结构，消除了近场盲区，提高了近距离扫查灵敏度，减少了探头体积。