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Turning gear

A technology of a turning device and a rotary joint, which is applied in the directions of wind turbine components, wind turbines, mechanical equipment, etc., can solve problems such as being easily restricted by environmental wind power.

Active Publication Date: 2013-09-04
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP
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  • Abstract
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Problems solved by technology

[0005] The embodiment of the present invention provides a turning device to solve the problem that the fan wheel is easily restricted by the wind force of the environment

Method used

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Embodiment Construction

[0026] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0027] In the embodiments of the present invention, it can be understood that the terms "first", "second", "third", and "fourth" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or The number of technical characteristics indicated is implied. Thus, a feature defined by "first", "second" and similar terms may expressly or implicitly include one or more of such features.

[0028] see Figure 2a with Fi...

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Abstract

The invention provides a turning gear, and relates to the technical field of wind power generation. By the turning gear, the problem of constraint of environmental wind power on a fan during turning is solved. The turning gear comprises a lead screw; a first rotating joint is slidably sleeved at one end of the lead screw and is fixed onto a stator of a generator in a fan; the other end of the fan is fixed onto a rotor of the generator in the fan; and a first nut and a second nut are further connected onto the lead screw in a threaded manner and are respectively positioned on two sides of the first rotating joint. The turning gear is applicable to 1.5 megawatt direct-drive wind turbine generator systems.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a cranking device. Background technique [0002] Wind turbines are called fans for short. figure 1 A structural schematic diagram of a fan is shown. The wind turbine includes a tower 11, on which a nacelle 12 is arranged, and on the nacelle 12, a generator 13 is arranged, and the generator 13 is connected with an impeller 14, and the impeller 14 is composed of blades 141 and a hub 142. Wherein, the cabin 12 is also provided with a skylight 121 . Staff in the nacelle 12 can perform maintenance and other operations on the impeller 14 through the skylight 121 . [0003] When debugging or maintaining the impeller 14 in the fan, the position of the impeller 14 needs to be locked for the convenience of the operator. Since there are only a few positions of the impeller 14 that are convenient for the operator to operate, it is usually necessary to rotate the impeller 14...

Claims

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Application Information

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IPC IPC(8): F03D11/00
Inventor 张新旺赵彦杰
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP
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