Vertical axis wind electric units with spherical hinge seat
A technology of wind turbines and vertical shafts, which is applied to wind turbines, wind turbine components, and wind turbines at right angles to the wind direction. It can solve problems such as diaphragm coupling and gearbox damage, and complex structure of the unit Effects of improving working conditions, simplifying support structure, ensuring dynamic performance and stable performance
Inactive Publication Date: 2010-08-11
海油双帆(北京)科技有限责任公司
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Problems solved by technology
[0004] There are two technical problems in such a structure: one is that the structure of the unit is complex, not only the soft connection but also the steel structure or concrete support for fixing the slewing support device and the soft connection are required; the second is that the slewing support device and the soft connection of the unit are fixed on the support Above, the gearbox and the generator are directly fixed on the ground through the base. Due to the limitation of the deformation of the diaphragm coupling, when the main shaft of the wind rotor has large deflection and vibration, the diaphragm coupling and the gearbox often injured
Existing products and technologies have not been able to solve the above two prominent problems
Method used
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[0013] In Fig. 1, the upper end of the wind rotor 2 is tensioned with the ground by the wire rope system 8 through the top bearing device 1, and the lower end of the wind rotor 2 is directly connected to the input shaft of the direct drive generator 3, and the direct drive generator 3 has a bottom thrust bearing , radial bearing and mechanical braking system are installed and fixed on the ball hinge base 5. The wind wheel 2 rotates under the action of wind force, directly drives the direct drive generator 3, and completes the process of wind power generation. The top bearing device 1, the elastic support 4, the ball hinge base 5 and the wire rope system 8 ensure the normal rotation of the wind wheel and the stability of the unit.
[0014] Figure 2 shows the structure of the ball joint base. The ball joint top seat 9 is connected to the direct drive generator 3 through bolts, and the ball joint base 10 is installed and fixed on the anchor bolts on the ground. After the ball h...
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The invention relates to a new vertical axis wind turbine, in particular to a vertical axis wind turbines with a spherical hinge base. The new vertical axis wind turbine has the advantages of eliminating soft connection between a diaphragm coupling and a spherical hinge, simplifying support structure, improving working condition of journal bearing of direct-drive generator, and enhancing stability of the turbines.
Description
technical field [0001] The invention relates to a novel vertical axis wind turbine, in particular to a vertical axis wind turbine with a spherical hinge base. Background technique [0002] At present, there are two main types of wind power generation equipment, horizontal-axis wind turbines and vertical-axis wind turbines. The structural forms, operating conditions and equipment used by these two types of turbines are not exactly the same. The blades of the horizontal axis wind turbine rotate around a horizontal axis parallel to the ground, and are widely used in wind power generation. The blades of the vertical axis wind turbine rotate around the vertical axis perpendicular to the ground, and the typical vertical axis wind turbine is the Darrieus type. In 1931, Darrieus applied for a patent in the United States and proposed a vertical axis wind turbine. [0003] In the 1980s and 1990s, a large number of vertical axis wind turbines appeared abroad, and a 4 MW Darrieus wind...
Claims
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IPC IPC(8): F03D9/00F03D3/00F03D11/04F03D11/00H02K7/18F03D9/25F03D80/00
CPCY02E10/728Y02E10/74
Inventor 郭树言潘国平
Owner 海油双帆(北京)科技有限责任公司