FIELD: machine building.
SUBSTANCE: group of inventions relates to screw hydraulic machine, in particular type of turbine and hydraulic machine equipped with such screw, and a method of connection of such screw. Screw (1) comprises hub (3) located along rotation axis (X-X), and blades (2), protruding from hub (3). Screw (1) consists of several sectors (4), each of which comprises a body, which at connection of sectors (4) form hub assembly (3). Each blade (2) is rigidly connected to housing sector (4). Sectors (4) are interconnected by means of at least one retaining ring (6), which is arranged around bodies sectors (4). Hub (3) is hollow. Each sector (4) comprises side wall (50) and a protrusion which is rigidly connected to side wall (50) and which protrudes inside hub (3) perpendicular to axis (X-X). Sectors (4) are interconnected by means of at least one disc (9) connected to protrusion of each sector (4) inside hub (3) by means of corresponding connecting elements (10).
EFFECT: group of inventions is aimed at reduction of overall dimensions of propeller hub, low cost of screw, easier mounting and transportation.
10 cl, 3 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| FLOTATION MACHINE | 2001 |
|
RU2212948C2 |
| AERATION UNIT OF FLOATATION MACHINE | 2001 |
|
RU2209688C1 |
| SCREW, FOR EXAMPLE HELICOPTER ROTOR | 2020 |
|
RU2740717C1 |
| PROPELLER HUB, PROPELLER WITH SUCH HUB AND GAS TURBINE ENGINE | 2010 |
|
RU2543364C2 |
| SCREW PROPELLER | 2015 |
|
RU2600958C1 |
| ELECTRICAL MACHINE | 1994 |
|
RU2065656C1 |
| HYDRAULIC MACHINE | 1992 |
|
RU2020273C1 |
| SHREDDER | 0 |
|
SU1771430A3 |
| HELICOPTER ROTOR AND HELICOPTER WITH SAID ROTOR | 2009 |
|
RU2499734C2 |
| AERATION UNIT OF FLOATATION MACHINE | 2001 |
|
RU2206406C1 |
