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INVENTION
Russian Federation Patent RU2046996

SCREW Belashova

SCREW Belashova

Name of the inventor:
The name of the patentee: Alexey Balashov
Address for correspondence: 109559, Moscow, Tikhoretsky Boulevard, 14, building 2, kv.63, A.N.Belashovu
Starting date of the patent: 1992.10.22

Use: wind energy, in particular wind turbines with a control system. The inventive screw drive shaft comprises a hollow sleeve and the sleeve placed in the optimum rotation synchronization mechanism. Each blade is provided with a screw mounted at an end part of the guide fins streamlined with an internal cavity, the axis of rotation fixed in the cavity, and a spring-loaded flap streamlined installed on the rotation axis. Podruzhinennymi synchronization mechanism is provided on both sides clutches that connect blades to the drive shaft axis.

DESCRIPTION OF THE INVENTION

The invention relates to a screw design which can be used in wind turbines and in aircraft engineering, in particular for horizontal transport helicopters.

Known wind turbine comprising a wind wheel mounted on a hollow shaft and a sleeve rotating blades fixed on them provided with centrifugal weights mutually mechanically and kinematically connected to the rotary synchronizing element housed in the sleeve [1]

A disadvantage of the known technical solutions is that the rotor blades do not contain self-regulating the optimal rotation system comprising a rotating device hinged synchronization.

The aim of the invention to increase the effectiveness in use, to provide a predetermined air flow and redistribution of the uniform rotation of the propeller blades.

For this purpose, inside the fixed base for the rolling elements is a drive shaft with a hollow sleeve in which is placed the synchronization mechanism of optimal rotating screw made of a spring-loaded on both sides of clutches cooperating with a conical couplings each blade are connected via hinges with the hollow sleeve, where the end portion of each rotor blade is set streamlined tail guide having an inner cavity in which is fixed on the rotation axis streamlined self regulating spring loaded flap.

SCREW Belashova

FIG. 1 shows a screw, general view; Figure 2 cross-section AA in Figure 1; Figure 3 section through V-V in Figure 1.

Screw (1) comprises a hollow sleeve 1, the rotary blade 2 having an aerodynamic protuberance 3, streamlined tail guide 4 provided with an internal cavity 5 samoreguliruyuyuschimsya streamlined flap 6 which is biased by a spring 7 and is mounted on the axis of rotation 8. The rotary blade 2 is 9. After flowing around the profile of the movable hinge 10 (Figure 2) associated with the axis 11 of the conical sleeve 12 cooperating with a clutch 13 associated with the drive shaft 14, which is disposed in the through hole of clutch 15. clutches 13 and 15, the optimal timing mechanism rotation of the screw on both sides are biased by the springs 16 and 17 to the inner base of the hollow shank 1 which through a rolling bearing 18 is connected with the fixed base 19.

SCREW WORKS AS FOLLOWS

When the flow of air flow through the rotary blades of the screw, the particles begin to drain from the aerodynamic projection 3 on streamlined profile 9, resulting in the rotation of the rotary blade 2, producing a partial offset of the incoming air stream to the inner cavity 5 of the guide tail 4, the spring-loaded self-regulating flap 6 to increase productivity with little wind rotor due to the repulsive force which is applied from the outside base of the self-regulating flap 6 and in the opposite direction of torque of the screw. At high wind gusts pivot the blades bend slightly in the two hinges 10 arranged at a small angle to the base of the hollow shank 1, which allows the rotary blade 2 to make a small turn, resulting in more runoff air flow through the inner cavity 5 is flowing around the guide feathers 4, overcoming the resistance of the spring 7, a self-regulating flap 6, which distributes the air flow acting on the repulsive force of rotation, and thus slows the movement of the screw. The stronger the gust of wind, the more established the angle of the folding rotary blades 2 and lower the speed of rotation of the screw, allowing to prevent its destruction. After loosening the screw gusty wind flow system restores itself by the springs 7, 16 and 17. When using a horizontal screw displacement blades of the helicopter 2 must be rigidly connected to the sleeve 1, and is inclined towards the screw motion of the helicopter so that the runoff from the airflow guide empennage 4 and the regulated part of the flap 6 has always been directed in the direction opposite to the direction of motion of the helicopter.

The invention improves the efficiency of the screw and to prevent its destruction by any extreme situations.

CLAIM

1. A screw comprising a drive shaft with a hollow sleeve, the optimum rotation synchronization mechanism disposed in the inner sleeve cavity, and rotary blades with axes defined by hinges, attached in the sleeve, and is kinematically connected via a synchronization mechanism to the drive shaft, characterized in that the screw is provided with a fixed base, each vane is provided fixed in an end portion thereof streamlined guide fins to the inner space, the rotation axis is fixed in the cavity, and a spring-loaded streamlined self-regulating flap mounted on the rotation axis, wherein the synchronization mechanism is provided with spring-loaded on both sides of the clutch, connecting blades to the drive shaft axis and the sleeve fixed on the base by means of rolling bearings.

2. Screw according to Claim. 1, characterized in that the joints made by the cardan type.

print version
Publication date 24.03.2007gg