Iron core tensioning structure and transformer

The utility model discloses an iron core tensioning structure and a transformer. The iron core tensioning structure comprises limiting plates and locking pieces, wherein the limiting plates are symmetrically arranged and used for clamping and fixing a plurality of iron core pieces which are arranged in a laminated mode, and the locking pieces are installed on the two limiting plates. The locking piece comprises a screw rod, a limiting nut and a locking nut, wherein the limiting nut and the locking nut are connected to the screw rod in a threaded mode. According to the iron core tensioning structure and the transformer, the structure is simple, operation is convenient and fast, and the problem that the screw and the nut are assembled loosely is avoided. 本实用新型公开了一种铁芯拉紧结构及变压器，包括对称布置、并用于对层叠布置的多个铁芯片进行夹固的限位板，以及安装于两个所述限位板上的锁止件；所述锁止件包括螺杆以及螺纹连接于该螺杆上限位螺母和锁死螺母。该实用提供的铁芯拉紧结构及变压器，结构简单、操作方便快捷，避免发生螺杆与螺母装配松动的问题发生。