| 摘要 |
The suction unit for material and rotary working equipment, the said material including a platform with means of rotation housing a tank, in which the suction unit is housed, a piping position opening connected to the work tool, an air inlet including three stacked components (6) (7) and (8) and mounted in upper, middle and lower positions, arranged to ensure air circulation, the lower component (8) is in the form of a bowl with perforations for the upwards passage of air, the middle component (7) is supported on the lower component (8) and has a central opening for positioning the lower part in the form of a ring of an motor-turbine which is mounted and fixed on a support plate which is connected to the middle part in the form of a tray (7), the said ring shape has openings for the passage of air, the upper component (6) is in the shape of a bell and is positioned above the components (7) and (8) and has openings in its upper surface for the passage of air, the said component (6) forms an interior volume with the component (7) for housing the upper part of an motor-turbine, the said suction unit is characterized in that in that the components (6) (7) and (8) define one and only air circulation unit which ensures the double function of air suction and ventilation and cooling of the motor-turbine, and in that the components (7) and (8) are assembled with a peripheral sealing gasket, and in that the intermediary tray (7) of the component forms a passage with the circular support plate, support of the motor-turbine, and in that the sucked air, entering through the inlet formed on the tank traverses the filtering system, passes through the lower part of the motor-turbine comprised by the part of the ring then passes through the passage openings that guide the air in the interior volume defined by the component in the shape of a bell (6) and the component (7) that ensures the ventilation of the motor-turbine, and in that the air is evacuated by the openings formed in the upper part of the bell, and in that the motor-turbine is a high frequency or brushless motor. |
