A high wind energy utilization coefficient can be obtained between the design wind speed and the initial wind speed, and when the working wind speed is greater than the design wind speed, the limit action can be favored. It is proved that the wind turbine is used flat, and the blade slides along the spiral groove on the support shaft of the petiole, and also changes the angle of the blade. This reduces the windward area of ​​the entire wind wheel, and the speed of the wind wheel will no longer rise, which plays a role in stabilizing the speed.
When the wind speed is less than the rated wind speed, the centrifugal force of the blade is smaller than the pressure of the central spring. The three-lobe Roots vacuum pump, the blade returns to the original design installation position under the action of the spring and the wire rope. The characteristics of the central main bomb praise centrifugal propeller: can make the wind turbine track the best angle of attack of the airflow under various wind speeds. From the starting wind speed to the rated wind speed, the wind turbine can have a higher wind speed coefficient value. run.
At low wind speeds, the preload of the spring causes the blade pitch to rotate to a suitable angle, giving the wind turbine a large starting torque and easier starting. When the wind speed is too high, the central main spring centrifugal pitch governing mechanism adjusts the mounting angle of the blade to keep the output power of the wind turbine stable. Since the device uses only one spring to control a plurality of blades, it is ensured that the angles of deflection of the plurality of blades are uniform, and the wind turbine can operate normally.
The central main spring centrifugal pitching device has a simple structure, is easy to install, and is inexpensive to manufacture. The central main spring centrifugal pitching device of the wind turbine is mainly composed of a spring, a rotary shaft, a wire rope, a wheel, a guide pin, a petiole support shaft, a petiole, a blade, a spiral groove, a spring seat and the like.
There are two 450 spiral grooves in the petiole support shaft. The petiole support shaft and the blade are mounted in the wheel. The guide pin is mounted on the petiole and inserted into the two spiral grooves in the petiole support shaft. The rotary shaft is mounted on the wind. At the front end of the generator, the two ends of the spring are fixed on the spring seat on the rotary shaft, and the free end of the spring is coupled with the root of the blade through a wire rope, and the petiole can slide up and down in the support shaft and spirally rotate.
The car is the most common type of transport in the world. The main building material used in cars is the relatively cheap steel. However, as the automotive industry begins to pay more and more attention to fuel efficiency, reducing CO2 emissions and design, aluminium is playing an ever more important role in modern cars.
Typical alloy: 5182, 5083, 6016, 6011, 6N12, 6014, 6181A, 6009, 6005A, 6061, 6082
Product character: good weld ability, good formability, superb bake hardening ability
Product Certificate:
Aluminium For Automotive
Aluminium For Automotive,Automobile Aluminum Sheet,Tank Car Aluminium Coils,Cast Plate For Car Mould
La Ya Aluminium products Co.,Ltd. , https://www.layametal.com