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INVENTION
Russian Federation Patent RU2282052
MECHANISM BLADES TURN windwheels
Name of the inventor: Tuchin Vladimir (RU); Bondarchuk Vladimir Fedorovich (RU); Rybaulin Vasily Mikhailovich
The name of the patentee: Tuchin Vladimir (RU); Bondarchuk Vladimir Fedorovich (RU); Rybaulin Vasily Mikhailovich
Address for correspondence: 117186, Moscow, ul. Sermon, 28, building 1, kv.61, VA Tuchina
Starting date of the patent: 2004.11.05
The invention relates to wind energy, it can be used to rotate the rotor blade mechanisms, in particular, to regulate the operation of wind turbines with the Fleet propeller and reduces the acceleration time until the required speed propeller. The steering mechanism comprises a hub with blades mounted on its radially outer portion with respect to the longitudinal axis of the sleeves and a rod, the peripheral part of which is fixedly connected with the bases of the blades; spring-mounted within the hub cup connected to the hub for longitudinal movement relative to each other and provided with racks, which number corresponds to the number of blades the propeller, and on the inner side of the rods are fixed gears.
DESCRIPTION OF THE INVENTION
The invention relates to wind energy and can be used to turn the blades of the wind wheel mechanisms, in particular, to regulate the operation of wind turbines with the Fleet propeller.
The closest to the proposed invention is a mechanism for turning the rotor blade, comprising a set in the cavities of the hub propeller hub with bars, peripheral portions of which are connected to the bases of the blades; the hub is provided with two fixed axis placed at its ends with spring-loaded sliders; Rods are equipped located in the root of their parts bearing assemblies connected by rigid articulated rods with sliders and the movable shaft and sleeve are placed interperpendicular / RF Patent number 1721287, cl. F 03 D 7/02 /.
The disadvantages of this design are the high complexity of the mechanism and the requirement of high precision manufacturing, and the impossibility of its application for multiblade windwheels.
Object of the invention - reducing the time required to disperse propeller speed and increase the amount of electricity generated.
This problem is solved in that the proposed mechanism for rotating of blades comprises a hub mounted with its radially outer portion with respect to the longitudinal axis of the sleeves and a rod, the peripheral part of which is fixedly connected with the bases of the blades; spring-mounted within the hub cup connected to the hub for longitudinal movement relative to each other and provided with racks, which number corresponds to the number of blades the propeller, and on the inner side of the rods are fixed gears.
The mechanism of rotation of the rotor blade comprises a hub, made in the form of the outer movable cylindrical cup 1, which has an internal fixed glass with 2 springs 3 and 4 racks, the number of which corresponds to the number of the blades 5 of the wind wheel. The inner cup 2 provided with a slit 6. The main body of the outer movable cylindrical cup 1 set sleeve 7 with the rods 8, the peripheral portions of which are connected with the bases of the blades 5 of the wind wheel, and on the inner ends of the pinion 9. To mitigate the kickback sleeves 7 on the limiter, with a sharp decline gust of wind, the spring 10 is used.
The mechanism of rotation of the rotor blade is as follows.
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In the initial position, i.e. in the absence of wind, the uncompressed spring 3, the movable cylindrical outer cup 1 and a rod 8 is in its extreme right position, and takes its initial position, and the gears are in the extreme right position, and in this case the blade angle of attack is 42-45 °. This position of the blades for optimal moment of breakaway propeller in case the wind speed starts to increase. With increasing wind speeds the blades start spinning propeller, it increases the frontal pressure that is transmitted to the outer movable cylindrical cup 1, which overcomes the initial pressure of the spring 3 and take a new position. The gears 9 engage with the racks 4, and movement of the outer cylindrical sleeve movable blades 1 will rotate blade 5, occupying a smaller angle of attack. The increase in speed of rotation by propeller aerodynamic forces acting on the blades is increased pressure on the outer movable cylindrical cup 1. translational movement stroke of the movable outer cylindrical wall of the cup 1 regulates slots 6, thereby limiting the rotational motion produced blades 5. Thus achieved the task set is to reduce the time required to disperse propeller speed and increase the amount of electricity generated. According to the experimental data the proposed structure compared with the known analogues can increase the amount of electricity generated by 10%. |
CLAIM
Swing rotor blade comprising a hub mounted with its outer part radially with respect to the longitudinal bushing axis and a rod, the peripheral portions of which are fixedly connected with the bases of the blades, characterized in that the inside of the hub mounted spring loaded tumbler coupled to the hub for longitudinal movement relative to each other and provided with racks, which number corresponds to the number of blades the propeller, and on the inner side of the rods are fixed gears.
print version
Publication date 31.01.2007gg
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