One-way braking device for wind power pitch system

A technology of a pitch system and a braking device, which is applied in the field of pitch systems, can solve the problems such as the failure of a wind turbine to stop normally and safely, the failure of the pitch system to work normally, and the locking of a motor braking device, so as to eliminate the axial squeak Clearance, anti-lock, smooth running effect

Inactive Publication Date: 2011-12-21
BEIJING WENCHUANG YOULIKE NEW ENERGY TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the prior art, when the pitch motor or the drive fails, the motor braking device is prone to lock, the pitch system cannot work normally, and it is very easy to cause the wind turbine to stop normally and safely. tower accident

Method used

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  • One-way braking device for wind power pitch system
  • One-way braking device for wind power pitch system
  • One-way braking device for wind power pitch system

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Embodiment Construction

[0018] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0019] like figure 1 , 2 The one-way braking device for a wind power pitch system shown includes a housing 1, an end cover 2, a mandrel 3, a mandrel bearing 4, a mandrel gear 5, a transmission disc 6, a brake pad 7, and a movable brake block 8 , brake spring 9 and electromagnetic coil 10, the end cover 2 is fixed on the housing 1 by bolts 11, the mandrel 3 passes through the housing 1 and the end cover 2, the mandrel 3 and the housing 1 and between the mandrel 3 and the end cover 2 are fitted with the mandrel bearing 4, the mandrel bearing 4 is a tapered roller bearing...

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Abstract

A unidirectional braking device for a wind power pitch system, the end cover is fixed on the shell, the mandrel passes through the shell and the end cover, and the mandrel is fitted between the mandrel and the shell and between the mandrel and the end cover Bearing; the mandrel gear is fixed on the mandrel, and the outer teeth of the mandrel gear mesh with the inner teeth of the transmission disc; one end of the brake spring is on the housing and the other end is on the brake pad, and the braking surface of the brake pad is in contact with the transmission disc. The disc surfaces of the discs match each other, the electromagnetic coil is fixed on the casing and the direction of its electromagnetic force is aligned with the brake pad, and the electromagnetic coil is electrically connected to the main power supply circuit. The invention utilizes brake springs, brake pads and electromagnetic coils to cooperate with one-way clutches to control the pitch system. When the main power supply circuit is powered off and the backup power supply fails, the fan blades can be safely returned. The paddle can prevent the motor braking device from locking up, and can return the blade to a safe position, so that the wind turbine can run and stop safely.

Description

technical field [0001] The invention relates to the technical field of the pitch control system of a large wind power generator, in particular to a unidirectional braking device for a wind power pitch control system. Background technique [0002] Wind power is the abbreviation of wind power generation or wind power generation. Wind power generation is an important form of wind energy utilization. Wind energy is a renewable, pollution-free, high-energy, and promising energy source. It is a strategic choice for all countries in the world to vigorously develop clean energy. Wind power technology and equipment is an important part of the wind power industry, as well as the foundation and guarantee for the development of the wind power industry. Countries around the world have adopted incentives to promote the development of their own wind power technology and equipment industry. At present, my country's wind power technology and equipment industry has made great achievements, an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D7/00
CPCY02E10/723Y02E10/72
Inventor 梁浩
Owner BEIJING WENCHUANG YOULIKE NEW ENERGY TECH
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