LC suspended semi submersible vertical turbine pump to prevent impeller loosening

LC suspended semi submersible vertical turbine pump to prevent impeller loosening, including pump body and pump shaft; It also includes an impeller set on the pump shaft, which is equipped with an impeller anti loosening component inside. The impeller anti loosening component includes impeller heads and nuts with two open ends; A stop washer is installed between the impeller anti loosening component and the pump shaft and impeller; The lower end of the pump shaft is a stepped shaft with a threaded structure, and a threaded hole is opened at the bottom axis. The impeller head is set on the stepped shaft and connected to the pump shaft thread. After the nut thread passes through the impeller head, it is connected to the pump shaft thread; The connection between the impeller head and the pump shaft is threaded in the opposite direction to the connection between the nut and the pump shaft. It can effectively prevent the impeller from loosening, while increasing the wear resistance of the pump body and improving the service life of the pump.

Technical requirements: 1. An LC suspended semi submersible vertical turbine pump for preventing impeller loosening, comprising a pump body (1) and a pump shaft (2); Characterized in that it further comprises an impeller (3) arranged on the pump shaft (2), wherein an impeller anti loosening component (4) is arranged inside the impeller (3), and the impeller anti loosening component (4) comprises an impeller head (41) and a nut (42) with two open ends; A stop washer (5) is provided between the impeller anti loosening component (4) and the pump shaft (2) and impeller (3); The lower end of the pump shaft (2) is a stepped shaft with a threaded structure, and a threaded hole is opened at the bottom axis. The impeller head (41) is set on the stepped shaft and connected to the pump shaft (2) by threads. The nut (42) is threaded through the impeller head (41) and connected to the pump shaft (2) by threads; The connection between the impeller head (41) and the pump shaft (2) is threaded in the opposite direction to the connection between the nut (42) and the pump shaft (2).