For most of the submersible sewage pump, the bearings are used in rubber material. Because most of the submersible sewage pump has the phenomenon of reflux, the domestic submersible sewage pump has been low efficiency, high cost and poor performance of anti sediment. As is known to all, the bearing and shaft of submersible sewage pump are very easy to be worn, so that the life of submersible sewage pump is reduced. Therefore, a new type of anti sediment and can overcome the diversion tank backflow, and submersible pump can solve the high cost and low efficiency, and operation of submersible pump, submersible pump shaft bearing wear rubber bearings is an urgent technical problem.
In order to solve the technical problem, a bearing body is composed of an inner surface is provided with a guide groove formed at the upper end of the bearing body is provided with a sealing ring, casting body sealing ring and the bearing body for the same material, the inner diameter of the seal ring is slightly smaller than the inner diameter of the bearing body, and the outer peripheral surface for sealing ring the conical surface, the inner peripheral surface of the submersible pump set rubber bearing has an annular dovetail groove appeared in people's field of vision.
Compared with the prior art, the rubber bearing of the submersible sewage pump solves the reflux phenomenon of the diversion groove, and simultaneously solves the problems of low efficiency, high cost operation of the submersible pump and the bearing and shaft wear of the submersible pump. Experimental results show that the submersible sewage pump flow, head, respectively, to improve the 1%-2%, can make the original design of the pump efficiency increased by 1.5%-3%. The submersible sewage pump rubber bearing not only greatly reduces the energy consumption, but also greatly reduces the axial force of pump, but also greatly reduce the friction of motor thrust bearing and the motor, and prolongs the service life of about 1 times.
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