Wind power generation high-power flexible long-range transmission device
A transmission device and high-power technology, applied in the fields of wind power generation equipment structure and mechanical equipment product structure, can solve the problems of unsuitable long-distance transmission, low power transmission efficiency, large pressure loss, etc., and achieve convenient long-distance motion transmission, reliable The effect of low performance and poor stability
Active Publication Date: 2015-12-16
LANZHOU UNIVERSITY OF TECHNOLOGY
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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
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[0013] Such as figure 1 As shown, the present invention is a high-power flexible long-distance transmission device for wind power generation, in particular, the use of a crank-slider-cable mechanism to realize the flexible long-distance transmission of mechanical energy of the wind power transmission system, including the wind wheel, the main shaft 5, the nacelle 12, and the first stage Speed increaser, tower 27, crank-slider-cable mechanism, second-stage speed increaser 49 and generator 52. The wind wheel is composed of three blades 46 and a hub 1. The blades 46 are mounted by flanges On the hub 1; a pitch device 2 is installed in the hub 1, and the pitch device 2 is connected with the blade 46. The rear flange 3 of the hub 1 and the main shaft 5 are fixedly connected by bolts, and the main shaft 5 passes through the main bearing seat 4 and the rear bearing The seat 11 is fixed on the bottom plate of the nacelle 12, and a mechanical brake device 9 is installed at the rear end...
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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...
Claims
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Login to view more IPC IPC(8): F03D11/02
CPCY02E10/72
Inventor 剡昌锋曾攀高刚刚周俊李志新芮执元
Owner LANZHOU UNIVERSITY OF TECHNOLOGY
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