Running wheel for centrifugal water pump

摘要

a wheel for a centrifugal water pump, characterized by a wheel disc (1), with a wave hole (2) in the centre of the wheel disc, with several shovels (3) evenly distributed on one side of the wheel disc, forming a water flow channel between adjacent shovels;where the shovel is curved, its end near the centre of the disc is a middle end (31) and its end away from the centre of the disc is a edge end (32), the width of the middle end being less than the width of the edge edge edge edge edge;where several mounting slots (11) are provided for mounting the shovels evenly on one side of the wheel disc, the mounting slots being fitted with a first slot (12) close to the centre of the wheel disc, and away from the centre of the wheel disc the mounting slots are each equipped with a second slot (13), with a first lead (33) at the middle end of the shovel, adapted to the first slot, with a second lead (34) at the edge of the shovel, which is adapted to the second slot,where a floor wall of the first slot and a floor wall of the second slot are each fitted with a connecting hole (14), with a winding hole (35) formed at the first and second lead, one connecting element (4) running successively through the connecting slot and the winding hole, to enable a fixed connection between the shovel and the wheel disc;where a side wall of the disc is fitted with a sound absorbing layer having a thickness of 2 to 3 mm; andwhere a side wall of the shovel is coated with a stainless layer having a thickness of 4 to 5 mm.