Dry-type power transformer insulation structure for rail transit

The utility model discloses a dry-type power transformer insulation structure for rail transit, which comprises a shell, the shell is a triangular cylinder, the outer surface of the shell is provided with a plurality of telescopic cavities, the telescopic cavities are distributed in a whole row, a buffer plate is movably connected in each group of telescopic cavities, and the buffer plates are arranged in the shell. The utility model relates to the transformer field, the structure is simple, convenient and practical, and the guide roller of each corner can play the guiding and buffering function, and is convenient for the transformer to use. The buffer plate on the side wall of the shell can cooperate with the first spring in the telescopic cavity to achieve the buffering and damping effects after collision. 本实用新型公开了一种轨道交通用干式动力变压器绝缘结构，包括外壳，所述外壳设置为三角形柱体，所述外壳的外表面开设有若干伸缩腔，所述伸缩腔为整列分布，每组所述伸缩腔内活动连接有缓冲板，所述缓冲板的底部与伸缩腔的内腔底部之间固定连接有第一弹簧，本实用新型涉及变压器领域，结构简单，方便实用，每个角的导向辊能够起到导向和缓冲功能,外壳侧壁的缓冲板能够在伸缩腔内配合第一弹簧在碰撞后起到缓冲减震的效果。