SU47950A1 - Spring, swiveling with respect to the geometric axis of rotation of wind, wheel, - Google Patents

Description

. Installing a wind turbine to the wind using a tail rudder at wind speeds exceeding 10 m1 sec causes large material stresses in the shank of the rudder during gusty wind.

In addition, the simultaneous rotation of the propeller around the horizontal axis and the entire wind turbine, at considerable angular velocities, creates a gyroscopic moment on the propeller, which bends the propeller shaft and shaft, and in addition, a tower or a mast, which the wind is mounted to. It is possible to slowly turn the wind into the wind, which is possible to achieve by installing winddrops, however, they are more complicated than the tail in construction and in low-power winds are unprofitable.

In order to eliminate the undesirable influence of gusty winds on the shank, as well as to reduce the gyroscopic forces on the wind wheel in the proposed spring, swiveling relative to the geometric axis of rotation of the wind stalk, on the end of the tailpiece

The gutter is secured by links associated with flexible ties attached to the wind head and located near the guide arc, which serves to create a specific shoulder on which the spring acts.

In the schematic drawing of FIG. 1 shows a top view of a spring coil pivoted with respect to the rotational axis of the wind; FIG. 2 - the same at the moment of turning the wind; fng 3 is a horizontal section along E-N in FIG. one.

The shank B, which carries the steering blade at the end, is fixed on the head A of the wind ka at point E, hinged. Bending it, attached at the top of the head and to the shank, is usual and not shown in the drawing.

On the sides of the shank B, two springs Ci and Cg are installed, fixed on one side to the crosspiece of the shank, and on the other, using flexible connections F, F to the head of the wind turbine. The length of the springs is determined by the fact that they are pulled when the shank is rotated up to 90 ° from its original position.

In the mouths of the shank, to the right or left, to observe some specific shoulder, on which the force of the spring acts, the guide arc D is fixed on the head in the plane of movement of the axis of the shank. When the tail turns, the F bend will lie along this arc, creating the necessary elongation of the spring and the shoulder on which it acts. The tail may deviate from its original position by 90, so that the storm winds throughout the system will be reflected less than with a rigid shank.

The position of a wind turbine with a steady flow of wind V is shown in FIG. I, and the moment of the wind direction change (arrow V is shown in Fig. 2. First, the shank with the steering blade deviates by a certain angle and then the first turn begins to turn with the speed that the spring force can create, determined by calculation . / At the same time, turning will occur slowly, because the spring can be picked up so that its moment will be almost equal to the moment of resistance.

Thus, the proposed rudder device relieves the system from a large gyroscopic moment on the wind wheel and a large bending moment on the shank. Consequently, as a swing, shaft and tower can be counted on less effort, and the shank of the handlebars.

A somewhat smaller result can be obtained by applying spring springs made of strip steel, placing them also on the sides of the shank, which can also be the spring itself. In this case, the angles of deviations of the shank will be small, and with stormy winds the shank will work as a rigid tail.

The subject matter of the invention.

A springy, winding steering wheel with respect to the geometric axis of rotation, characterized by the use of a guide arc D for flexible connections F, F attached to the springs GI and Cj mounted on the cross-piece of the shank S carrying the steering blade at the end.

Fig1

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