Water lubricated sliding bearing device for suspended semi submersible vertical turbine pump

The suspended semi submersible vertical turbine pump is equipped with a water lubricated sliding bearing device, which includes a pump body, a suction section, a water outlet bend pipe, an impeller, a pump shaft, an upper bearing support body, a lower bearing support body, and a packing sealing device. The upper bearing support device is composed of an upper rubber bearing and an upper bearing liner, and the lower bearing support body is composed of a lower rubber bearing and a lower bearing liner. Its feature is that a protective tube is provided, which is sleeved on the pump shaft inside the pump body. The upper end of the protective tube is sealed to the upper bearing liner, and the lower end is sealed to the lower bearing liner. It has a novel design, reliable structure, convenient use, diverse conveying media, low rotor wear, not easy to damage, low vibration, smooth operation, low material requirements for sliding bearings, and low cost. Advantages include high transmission efficiency, easy processing, corrosion resistance, wide applicability, and good lubrication effect.

Technical requirements: 1. A suspended semi submersible vertical turbine pump with water lubricated sliding bearing device, comprising a pump body, a suction section, a water outlet bend pipe, an impeller, a pump shaft, an upper bearing support body, a lower bearing support body, and a packing sealing device. The upper bearing support device is composed of an upper rubber bearing and an upper bearing liner, and the lower bearing support body is composed of a lower rubber bearing and a lower bearing liner. The feature is that a protective tube is provided, which is sleeved on the pump shaft inside the pump body. The upper end of the protective tube is sealingly connected to the upper bearing liner, and the lower end is sealingly connected to the lower bearing liner.