Sliding pin system of steam turbine

The invention discloses a sliding pin system of a steam turbine, and relates to a sliding pin system. According to the invention, the problem that the economical efficiency and safe operation of the unit are influenced because of the sticking of the existing sliding pin system and air cylinder expansion and blocking in the operation of the unit is solved. The system provided by the invention comprises a bearing box part (1), a base frame part (2), two groups of pressing plates (4) and a plurality of metal lubricating plates (3); the bearing box part (1) is arranged on the base frame part (2); the base frame part (2) is provided with a guiding key placing hole (2-1); the metal lubricating plates (3) are of three layers of self-lubricating layers; the plurality of metal lubricating plates (3) are horizontally laid on the upper surface of the base frame part (2), and are not laid on the guiding key placing hole (2-1) on the base frame part (2); the two groups of pressing plates are arranged at two sides of the plurality of metal lubricating plates (3); and two ends of each metal lubricating plate (3) are fixedly installed on the base frame part (2). The sliding pin system provided by the invention is suitable for steam turbines.