Transformer on-load voltage regulation tap switch hanging core frame

The invention discloses a transformer on-load voltage regulation tap-changer core hanging frame, and relates to the technical field of power transformation maintenance, the transformer on-load voltage regulation tap-changer core hanging frame comprises a hoisting module, a maintenance module and a supporting module, the hoisting module comprises a hoisting arm, the supporting module and the maintenance module are installed at the two ends of the hoisting arm respectively, and the supporting module is used for preventing the hoisting arm from toppling over due to too long extension; the maintenance module comprises a first hollow disc and a first hollow circular plate, the first hollow circular plate is rotatably mounted on the first hollow disc, and the hoisting module transfers the core from the transformer to the first hollow circular plate for fixing and maintenance. The problem that an existing truck-mounted crane cannot execute tasks in all transformer substations due to the limitation of the environment