Two-section type transmission shaft

The utility model discloses a two-section type transmission shaft which comprises a front transmission shaft and a rear transmission shaft connected with the front transmission shaft through a transmission structure. The rear transmission shaft comprises an inner shaft tube and an outer shaft tube sleeved outside the inner shaft tube, the inner shaft tube is an outer spline shaft tube, the outer shaft tube is an inner spline shaft tube, the inner shaft tube is connected with the outer shaft tube through a spline, and the inner shaft tube and the outer shaft tube are hollow shaft tubes, so that the rear transmission shaft is light in weight. The axial distance between the inner shaft tube and the outer shaft tube is long, and therefore the telescopic amount is large. The rear transmission shaft composed of the inner shaft tube and the outer shaft tube is simple in structure and few in parts. 本实用新型公开了一种两节式传动轴，包括：前传动轴，与前传动轴通过传动结构连接的后传动轴；后传动轴包括内轴管及套装于内轴管外部的外轴管，内轴管为外花键轴管，外轴管为内花键轴管，内轴管与外轴管通过花键连接，内轴管与外轴管均为中空轴管，因此质量轻