Mileage wheel structure for detector in steel pipe

The utility model provides an odometer wheel structure for a detector in a steel pipe, the odometer wheel structure comprises a wheel body, a wheel shaft, a locking nut, more than two bearings and a bearing spacer bush, bearing outer rings of the bearings are embedded in an inner ring of the wheel body, the wheel shaft penetrates through the bearing inner rings and then is connected with the locking nut, and the bearing spacer bush is connected with the locking nut. And a bearing spacer bush is arranged between the bearing outer rings of the adjacent bearings. The odometer wheel solves the technical problem of how to effectively solve the problem that the wheel body of the odometer wheel rotates flexibly in the prior art. 本实用新型提供了一种用于钢管内检测器的里程轮结构，该里程轮结构包括轮体、轮轴、锁紧螺母、两个以上轴承和轴承隔套，所述轴承的轴承外圈嵌入轮体内环内，所述轮轴贯穿轴承内圈后连接锁紧螺母，相邻轴承的轴承外圈之间设有轴承隔套。本实用新型解决现有技术中存在的如何有效解决里程轮的轮体转动太灵活的技术问题。