Central component shaft connection structure of suspended semi submersible vertical turbine pump

The shaft connection structure of the intermediate component of the suspended semi submersible vertical turbine pump includes upper and lower transmission shafts located between the power unit and the pump body. The two transmission shafts are connected by couplings, and the connecting sections of the two transmission shafts are respectively installed on two bearing seats through bearings; The two bearing seats are provided with a pair of opposite concave cavities on opposite sides, and the ends of the two concave cavities are connected to each other through flanges to form a closed cavity. The coupling is located in the closed cavity. This technical method has a simple structure and is easy to manufacture. It seals and protects the coupling part by extending a concave cavity from the bearing seat of the transmission shaft connection section, eliminating the need for specialized protective pipe components and reducing the connection and sealing links. Therefore, it can improve installation efficiency and operational reliability.

Technical requirements: A suspended semi submersible vertical turbine pump intermediate component shaft connection structure, comprising upper and lower transmission shafts (1) located between the power device and the pump body, connected by couplings (2), and the connecting sections of the two transmission shafts are respectively installed on two bearing seats (3) through bearings. The feature is that a pair of opposite concave cavities are set on the opposite sides of the two bearing seats (3), and the ends of the two concave cavities are connected to each other through flanges (4) to form a closed cavity (5), and the coupling (2) is located inside the closed cavity (5).