RU1801177C - Wind-driven electric plant windwheel - Google Patents

Abstract

Usage: wind power. The wind wheel with two blades is equipped with compensating weights, a stabilizer, a speed control device mounted on the stabilizer shaft, and a device for synchronizing the rotation of the blades. The revolving control device is made in the form of a sleeve with a slot fixed at one end to the stabilizer mounting element to the blades, and a spring and second sleeve are installed at the other end of the sleeve with a bolt fixed to it, passing through the sleeve groove and the screw groove of the stabilizer shaft. 6 ill.

Description

The invention relates to wind energy and can be used to power various consumers.

The purpose of the invention is to simplify the design and increase reliability.

The goal is achieved in that the wind wheel of the wind power installation, containing stabilizers attached to the blades having compensating weights, a device for synchronizing rotation of the blades, kinetically connecting the rotation shafts of the blades of the wind power installation, further comprises a speed control device mounted on the stabilizer shaft, having a helical groove, and is made, eg, in the form of a sleeve with a slot fixed at one end to the stabilizer mounting element to the blade, and to the other end of the sleeve and a second spring installed bush fixed thereto bolt extending through the sleeve groove and screw groove. stabilizer shaft.

Figure 1 schematically shows a wind wheel of a wind power installation; Figures 2 and 3 show stabilizer options with a speed control device, sectional view; Fig. 4 is a diagram of a mounting of a leash on a shaft of rotation of a blade; figure 5 - step sleeve; figure 6 - stabilizer shaft. The proposed wind wheel consists of at least two blades 1 with compensating weights 2 and stabilizers 3 with speed control devices 4, which are attached to the blades 1 using fasteners 5, as well as a synchronization device 6 for turning the blades 1, connecting the shaft 7 for the rotation of the wind wheel with the ends of the shafts 8 of the rotation of the blades 1 by means of leashes 9. at one end attached to a spring-loaded sleeve 10, sliding along the rotor shaft 7 of the wind wheel, on which there is a spring 11, and the leashes 9 are attached. eccentric ends of the rotation shafts 8 (Fig. 4). The speed control device 4 is installed on the inlet 12 of the stabilizer 3 having a helical groove, and is made in the form of a sleeve 13 with a slot (Fig. 5), one end of the fixmrop n (L

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 With

spring to the mounting element 5 of the stabilizer 3 to the blade 1, and on the other end of the sleeve 13, a spring 14 and a sleeve 15 are installed with a bolt 16 fixed thereon (or a cotter pin 18, FIG. 3) passing through the groove of the sleeve 13 and the screw groove of the shaft 12 the stabilizer 3, which is fixed from turning by bolts 17. The ends of the stabilizer 3 and the speed control device 4 are provided with caps 19.

The wind wheel of a wind power plant operates as follows.

In the absence of wind, the spring 11 (see Fig. 1) through the sleeve 10, sliding on the shaft 7, and leashes 9, mounted with an eccentricity (Fig. 3) on the shaft 8 of rotation of the blades 1, set the blades 1 in the vane position. When a wind occurs at a speed V, a lifting force arises on the blade 1, which tends to rotate the wind wheel relative to the x x axis. An angular speed of rotation of the wind wheel appears o) and the resulting air flow (o - Vv2 4- (o) g) 2 acts on the blade 1 at a radius r. The shaft 8 of rotation of the blade .1 is mounted on the blade 1 so that the air loads acting on the blade 1 do not create aerodynamic moments relative to the shaft 8 (passes through the centers of pressure of the sections of the blade), so the blade 1 tends to take the position specified by the stabilizer 3. Upon reaching predetermined revolutions (a) estimated) the revolutions controller 4 comes into operation (Fig. 2). The sleeve 15, under the action of centrifugal force, overcomes the force of the spring 14 and moves by an amount proportional to the excess of the design revolutions. Together with the sleeve 15, a bolt 16 is mounted, fixed on it, it slides in the grooves of the sleeve 13, mounted on the fastener 5 of the stabilizer 3 on the blades 1 and in the screw groove of the shaft 12, turning it. and a stabilizer 3 mounted on it. The shaft 12 of rotation of the stabilizer 3 passes through the pressure centers of the cross-section of the stabilizer 3 and therefore the air forces acting on the stabilizer 3 do not create moments relative to the shaft 12. After rotation of the stabilizer 3, the moment changes.

acting relative to the shaft 8 of the blade 1, and the blade changes its position relative to the incoming flow, thereby reducing the angle of attack thereby the moment relative to the axis of rotation 7 of the wind wheel, which

leads to a decrease in the speed of the wind wheel to the calculated value.

Compared with the base object, the declared wind wheel is simpler, since there is no leverage system that complicates

design and, therefore, compared with the base object, the proposed design is more reliable.

Claims (1)

SUMMARY OF THE INVENTION A wind wheel of a wind power installation comprising a stabilizer fixed to blades having compensating weights, a device for synchronizing the rotation of the blades kinematically connecting the rotation shafts of the blades, which means that, in order to simplify the design and increase reliability, the wind wheel additionally contains a control device revolutions mounted on the shaft of the stabilizer having a screw groove, and made in the form of a sleeve with a slot fixed at one end to the stabilizer mounting element to the blades, and at the other end of the sleeve there is a spring and a second sleeve with a bolt fixed to it, passing through the sleeve groove and the screw groove of the stabilizer shaft. FIG. 2