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Schematic representation of a gear rim with teeth on the inner side. The gear rim meshes with four yaw drive pinions.. The gear-rim and the pinions of the yaw drives are the components that finally transmit the turning moment from the yaw drives to the tower in order to turn the nacelle of the wind turbine around the tower axis (z axis).
An example of a wind turbine, this 3 bladed turbine is the classic design of modern wind turbines Wind turbine components : 1-Foundation, 2-Connection to the electric grid, 3-Tower, 4-Access ladder, 5-Wind orientation control (Yaw control), 6-Nacelle, 7-Generator, 8-Anemometer, 9-Electric or Mechanical Brake, 10-Gearbox, 11-Rotor blade, 12-Blade pitch control, 13-Rotor hub
The windmills at Kinderdijk in the village of Kinderdijk, Netherlands is a UNESCO World Heritage Site. A windmill is a structure that converts wind power into rotational energy using vanes called sails or blades, by tradition specifically to mill grain (), but in some parts of the English-speaking world, the term has also been extended to encompass windpumps, wind turbines, and other applications.
The yaw bearing system aligns the blades to the wind. It consists of the ring gear, yaw motor and the yaw bearing clamp assemblies . [2] The yaw bearing can be of the roller or gliding type and it serves as a rotatable connection between the tower and the nacelle of the wind turbine.
Schematic representation of a typical roller yaw bearing configuration of a modern wind turbine. The roller yaw bearing is a common technical yaw bearing solution followed by many wind turbine manufacturers as it offers low turning friction and smooth rotation of the nacelle. The low turning friction permits the implementation of slightly ...
In a windmill, a Crown Wheel is an auxiliary gear on the Upright Shaft. Fantail A fantail is a small windmill which is used to keep a windmill facing into the wind automatically. Great Spur Wheel The Great Spur Wheel is carried on the Upright Shaft. It drives the Stone Nuts. Millstones driven by the Great Spur Wheel can be either Overdrift or ...
In many windmills it is automated by adding a centrifugal governor to the tentering gear. Depending on the type of grain to be milled and the power available the miller may adjust the feed of grain to stones beforehand by changing the amount of agitation of the feed-shoe or adjusting the size of the hopper outlet.
English: A turbine and gear box are mounted in a casing called a nacelle, and rotor blades are attached to the turbine. The turbine localizes the energy of the turning rotor blades in a single rotating shaft that generates electricity.