| 摘要 |
Liquid pumping unit composed by submersed electric motors (12) enclosed into a support structure formed by a box-like shaped casing (13), and used particularly for actuating in rotation the relative rotors for submersed pumps for pumping liquids, which are joined to the shaft (23, 34) of each motor (12). In the interior of the box-like shaped casing (13) there are enclosed, in addition to the motor (12) and the shaft (23, 34), at least an elastic diaphragm (31) for the compensation of the liquid pressure during the actuation in rotation of the shaft (23, 34) and the pump, and the end portions of the box-like shaped casing (13) are hermetically sealed by means of a relative ring nut (22, 32), which can be bayonet coupled with the box-like shaped casing (13). Advantages : easy and quick disassembling of the unit, and less component parts utilized as well as less required assembling steps for the same unit. |
