Special disassembly device for mixed flow pump impeller

Special disassembly device for mixed - flow pump impeller
In the urban drainage pumping station, the use of mixed flow pump occupies a large share. Mixed flow pump structure is simple, good performance, high head, high flow, high efficiency, easy to install and use and maintenance, low cost. Therefore, mixed-flow pump in farmland irrigation and drainage and urban drainage have been widely used. Qiqihar City is located in the Nenjiang Plain. Urban sewage, rain water must be gradually upgraded by the city after the pumping station, row of oxidation pond. The old city of drainage pumping station is still to HB and HW-type mixed flow pump-based, are basically Wuxi pump factory products. In the years of use and maintenance, both the impeller and the sleeve of the damage and replacement, or bearing and pump shaft damage, maintenance, etc., should be related to the removal of the impeller. As the pump perennial operation and sewage corrosion, so that the impeller and pump shaft rust together. Impeller installed in the pump chamber, can touch the parts are shaped round face, any tool can not be hooked, hanging solid. In the past, the general practice of maintenance is to remove the impeller cap, the bearing housing and the pump between the fixed bolt release, the impeller with the pump shaft after the channeling, so that the back of the impeller on the inner wall of the pump shell, and then copper Bar pad with a hammer forced back to the pump shaft, forcing the pump shaft and the impeller off. The part of the pump is hit by the threaded part of the impeller, it is easy to be broken. Even with a copper pad pad, it is difficult to often be knocked head, causing the pump shaft scrapped. As the pump rust is too serious, in order to improve work efficiency, would rather remove the pump shaft (that is, directly hit the pump shaft with a sledgehammer).