Slip shaft easy to maintain

The utility model discloses a slip shaft easy to maintain. The slip shaft comprises a main shaft, the slip frequency ring assemblies are arranged on the main shaft in a sleeving mode, the axis direction of the main shaft serves as the left-right direction, the left end and the right end of each slip frequency ring assembly are each provided with a first blocking sleeve, the first blocking sleeves extend in the direction away from the slip frequency ring assemblies along the axis of the main shaft, and the multiple slip frequency ring assemblies are arranged; the multiple slip ring assemblies are distributed at intervals in the left-right direction. And the blocking ring is arranged on the main shaft in a sleeving mode, the blocking ring is arranged between every two adjacent slip ring assemblies, and the left end and the right end of the blocking ring are arranged in the two first blocking sleeves in a penetrating mode correspondingly. According to the slip shaft easy to maintain, the main shaft is prevented