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INVENTION
Patent of the Russian Federation RU2260709
DEVICE FOR RESTRICTING PYRAMIDAL WIND MOTOR SPEED
The name of the inventor: Stepanchuk Arkady Nikolaevich
The name of the patent owner: Stepanchuk Arkady Nikolaevich
Address for correspondence: 85485, Donetsk Region, Ukraine, ul. October, 2A, A.N. Stepanchuk
Date of commencement of the patent: 2003.10.09
The invention relates to the field of wind power engineering, namely, to the constructions of pyramidal windmills. The technical result consists in increasing the efficiency of the device and simplifying the design through the use of unified parts. The device includes a vertical axis with fixed on it pyramidal blades. Equipped with an additional pyramidal wind motor (PVD), one of whose blades is connected to the counterweight, and the other - and through a cable connected to a hydraulic system, the mechanisms of which are equipped with brake pads with the possibility of affecting the axis of the working pyramidal windmill.
DESCRIPTION OF THE INVENTION
(EN) The invention relates to wind energy, in particular to structures of pyramidal wind turbines.
A device for limiting the speed of a pyramidal windmill is known, including a vertical axis with pyramidal blades fixed to it (see, for example, US 4105363 A, class F 03 D 3/06, 08/08/1978), on the basis of the essential features taken for the nearest Analogue of the invention (prototype).
The shortcomings of the device include low reliability, low efficiency (EFFICIENCY), large weight of the device.
The technical result, which consists in increasing the efficiency of the device and simplifying the design by using the unified parts, is provided by the fact that the device for limiting the speed of the pyramidal windmill, including the vertical axis with the pyramidal blades fixed on it, is provided in accordance with the invention An additional pyramidal wind motor (PVD), one of whose blades is connected to the counterweight, and the other - and through a cable connected to a hydraulic system, the mechanisms of which are equipped with brake pads with the possibility of affecting the axis of the working pyramidal windmill.
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Fig. 1 shows the working and additional pyramidal engines (PVD) and a device for limiting the speed of the pyramidal wind turbine (PVD) (general view).
Fig. 2 shows an additional pyramidal wind turbine (LDPE) with a device for limiting its revolutions.
The working LDPE 1 is mounted in the opening of the cantilever part 2, supported by the mast-support 3, which in turn is provided (fixed) by the device for damping the vibrations, vibrations and vibrations of the wind power plant (APU). It consists of pullers 4 of tension 5 and shock-absorbing 6 cables, fixed rollers 7, tightening cables 8, ending with cargo expansion joints (not shown).
The device for limiting the speed of LDPE consists of a small additional pyramidal windmill 9 (several times smaller in dimensions of the working LDPE), a guide 25, a roller 19, a tension cable 20 with a counterweight 10, and used automotive parts and components 12-17 that include In its braking system to reduce its speed, stop and hold (short-term) in place.
According to the design, an additional pyramidal engine is 9 two-tiered with six blades (three blades on each tier) through 60 ° each with respect to the axis. This eliminates the phenomenon of a "dead point" in any direction of the wind and at a speed starting from 17-19 m / s, the engine 9 should begin to limit the revolutions of the working LDP 1 and the entire kinematic system of the APU.
Additional LDPE 9 can be mounted both on the top of the APU, and below, on the lower platform under the working LDP 1.
As a brake, limiting the speed of the working LDPE 1 body is proposed to use the rear axle of the car. Depending on the power of the APU, the rear axle of a car or truck is selected, making some design changes. One semiaxis, together with the crankcase, disc and brake unit belonging to it, is to be disconnected and fixed in position as in Fig. 1 (item No. 14). This will be the upper bearing block 14, which must be pivotally connected to the working LDPE 1 in its upper part. In the lower part of it, it must rest on the independent bearing assembly 23, through which the shaft ending at the bottom with a flange is passed, behind which the flange of the second axle of the wheel of the car rear axle 15 is connected, and the cardan part 16 is connected to the working member 18 (pump , Generator, transmission). The application here of the rear axle of the car is very justified. As is known, the shafts driving the wheels on the car are placed in relation to its axis and the cardan shaft at an angle of 90 °. And this is what is needed to transfer the force from the vertically working LDPE 1 to horizontally mounted working elements 18 (pumps, generators, etc.). The main gear entering the rear axle is usually made of gears with special teeth, which is done to achieve its noiseless and smooth operation, because the noise during the operation of the APU should not exceed the permissible limit. In addition, the rear axle can fully fulfill the function of the multiplier: it is possible to raise the small shaft turns of the working LDPE 1 to the nominal speed of the working element 18, so that it can, say, pump water or generate electricity.
OPERATING PRINCIPLE OF THE DEVICE NEXT
Additional LDPE 9 is at rest until the head and wind speed does not exceed 15-16 m / sec. This is provided by a specially selected counterweight 10 connected by a cable 20 passing through a guide 25 and a block 19 with a PVD 9, which are depicted in FIG. If the wind speed starts to exceed 15-16 m / s, then the LDP 9 starts, on the one hand, pulling up the counterweight 10 and, on the other hand, by means of the cable 11, through the guide 26, the pedal 12, which presses the rod of the master brake cylinder 13 , As a result of which the pressure of the liquid in the cylinder will increase and it will flow through the lines to the brake mechanisms 21, 22.
In this way, the task of braking and limiting the LDPE speed is fulfilled: the greater the squall wind, the more effort brake pads (not shown) will be applied to the brake discs of the brake mechanisms 21, 22. At the same time the working bodies can continue to work without the danger of any damage, those. In its nominal mode. It is impossible to stop the working LDPE 1, because the wind pressure will certainly exceed the permissible limits, a resonance will occur and the APU will begin to collapse.
Relatively easy to solve the problem of stopping APU during its repair and maintenance. For this purpose, a lightweight hand winch 30 is used to drive the cable 27, which, through the rollers 29, 28 and the guide 26, presses on the piston of the brake cylinder 13, and it ultimately drives the brakes 21, 22, i. E. The APU will be stopped, which will make it possible to access its nodes and assemblies.
Thus, a compact, simple and low-cost device for automatically limiting the RPM rotor speed (rotation speed) has been created.
Without this device, the performance of the LDPE will be very limited. In particular, the bearing separators will wear out quickly in the bearing bearing assembly, and the operation of the APU, because of the likely resonance, will be very dangerous.
CLAIM
A device for limiting the speed of a pyramidal windmill, including a vertical axis with pyramidal blades fixed thereto, characterized in that it is provided with an additional pyramidal wind motor, one of whose blades is connected to a counterweight, and the other, and by means of a cable, is connected to a hydraulic system, the mechanisms of which are provided Brake pads with the possibility of affecting the axis of the working pyramidal windmill.
print version
Date of publication 02.02.2007gg
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