Hydrogen embrittlement device and method for bearing seat of intermediate and rear axle speed reducer

The invention provides a hydrogen embrittlement device and a hydrogen embrittlement method for a bearing seat of an intermediate and rear axle speed reducer. The hydrogen embrittlement device comprises an electrolyte circulating system, an electrochemical reaction system and a reaction auxiliary system; the electrochemical reaction system comprises a connector part; the electrolyte circulating system comprises a water pump, an electrolyte storage box and a supporting frame, the water pump communicates with the connector part through a first conveying pipeline, the electrolyte storage box is fixedly arranged at the top of the supporting frame, and the electrolyte storage box communicates with the water pump through a connecting pipe; the electrolyte storage box communicates with the connector part through a second conveying pipeline; and the reaction auxiliary system comprises a first lifting device and a propelling device, the first lifting device is used for adjusting the position of the connector part to en