Blade tip automatic hoisting release device of fixed pitch wind generating set

A technology for wind turbines and release devices, which is applied in wind turbines, control of wind turbines, and wind power generation. It can solve the problems that the driving medium is easily affected by temperature, the leakage of hydraulic medium, and the impact on system pressure. It achieves a novel structure, The effect of high safety and convenient use

Pending Publication Date: 2020-09-11
王玉才
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] When the fixed-pitch wind turbine is shut down, the tip of the blade needs to be thrown out to cooperate with the air brake and mechanical brake to stop. At present, when the fixed-pitch wind turbine is stopped, the blade tip is thrown out by the hydraulic cylinder. The medium is easily affected by temperature, which affects the system pressure, the leakage of the connecting pipeline and the hydraulic cylinder causes the leakage of the hydraulic medium, and the leakage of the hydraulic medium corrodes the blade body and damages the blade structure

Method used

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  • Blade tip automatic hoisting release device of fixed pitch wind generating set
  • Blade tip automatic hoisting release device of fixed pitch wind generating set
  • Blade tip automatic hoisting release device of fixed pitch wind generating set

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Embodiment Construction

[0018] In describing the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "centre" etc. indicate The orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the referred device or element must have a specific orientation configuration and operation, so it cannot be construed as a limitation of the invention.

[0019] In the description of the present invention, it should also be noted that, unless otherwise clearly specified and limited, the terms "equipped with", "installed", "connected", "connected" and so on should be understood in a broad sense, for example, it can be fixed The connection can also be a detachable connection, or an integrated connection, it can be a mechanical connection, it can also ...

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Abstract

The invention discloses a blade tip automatic hoisting release device of a fixed pitch wind generating set. The device comprises a hoisting device shell, wherein a slide way is disposed in the hoisting device shell; one side of the hoisting device shell is connected to a driving mechanism; the driving mechanism comprises a driving motor and a driving gearbox; an output end of the driving mechanismis provided with a worm; a rack is meshed on the worm; the rack is located in the slide way; an electromagnetic rotation device is connected under the hoisting device shell; a sway arm is connected to and disposed on the electromagnetic rotation device; a limiting rack is connected to and disposed on the sway arm; the limiting rack is in meshed connection to a gear located outside the bottom of the driving gearbox; and a reset spring is connected and disposed between the hoisting device shell and the driving mechanism. In comparison with the prior art, the device disclosed by the invention has the beneficial effects of being novel in structure, rational in design, convenient to maintain, and high in reliability and safety.

Description

technical field [0001] The invention relates to the technical field of wind power generation, in particular to a blade tip automatic lifting release device for a fixed-pitch wind power generating set. Background technique [0002] A wind turbine is a power device that converts wind energy into mechanical work, which drives the rotor to rotate, and finally outputs alternating current. Fixed pitch means that the blades of the wind wheel are rigidly connected to the hub, and the pitch angle of the blades remains unchanged. The principle of power adjustment from stall is that the blade angle of the wind turbine is fixed, but the aerodynamic characteristics of the blade itself are used, that is, within the rated wind speed, the lift coefficient of the blade is relatively high, and the wind energy utilization coefficient (Cp value) It is also higher, and when the wind speed exceeds the rated value, the blades will enter a stall state, so that the lift will no longer increase, and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCF03D7/00F05B2260/76F05B2270/602Y02E10/72
Inventor 王玉才
Owner 王玉才
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