Wind power generation high-power flexible long-range transmission device

Abstract

The invention provides a wind power generation high-power flexible long-range transmission device which aims at making a large speed-increase gearbox and an electric generator which are placed on a tower top cabin placed on the ground, reducing the weight and the size of the tower top cabin and reducing installation and maintenance difficulty and cost. The wind power generation high-power flexible long-range transmission device comprises a wind wheel, a first-stage speed-increase gearbox, crank-sliding block-inhaul cable mechanisms, a second-stage speed-increase gearbox and an electric generator. The wind wheel rotates under the effect of wind, rotation is transmitted to a main shaft through a hub, the main shaft is connected with two gearboxes, and after speed increase and steering are conducted through the gearboxes, a crankshaft is driven to rotate through a pair of straight gears. One crank-sliding block-inhaul cable mechanism is composed of the crankshaft, a slide block and a steel rope on the top of a tower cylinder. The crankshaft drives a sliding block mechanism to do linear movement through a connection rod, the linear movement is transmitted to the other crank-sliding block-inhaul cable mechanism at the bottom of the tower cylinder through the steel rope, the linear movement is converted into rotation movement, the crankshaft at the bottom of the tower cylinder is connected with the second-stage speed-increase gearbox, and the electric generator is driven to generate electricity after speed increase is conducted.

Description

technical field [0001] The invention relates to a transmission device for wind power generation, which belongs to the technical field of mechanical equipment product structure, specifically, belongs to the technical field of mechanical equipment products applied to the structure of wind power generation equipment. Background technique [0002] The main transmission chain of the wind turbine mainly includes the main shaft, the main bearing, the gearbox, the coupling and the braking system, etc. The main transmission chain of the high-power wind turbine is mainly used to transmit power. At present, the generator in the wind turbine is placed directly on the top of the tower. Due to its high position and heavy weight, it will have a great impact on the static and dynamic characteristics of the tower. In recent years, many scholars in the world have devoted themselves to the study of how to place the generator on the ground. The current implementation methods include hydraulic t...

AI Technical Summary

Problems solved by technology

In recent years, many scholars in the world have devoted themselves to the study of how to place the generator on the ground. The current implementation methods include hydraulic transmission, elastic shaft or long rod transmission methods, among which the high pressure, valves, and pumps involved in hydraulic transmission , pipelines and other technologies require a high level of manufacturing technology, and a high level of technology for use and maintenance, and the flow of oil in the pipeline will cause pressure loss. When the pipeline is long, the pressure loss is large and the power transmission Reduced efficiency, not suitable for long-distance transmission

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