Yaw brake pad made of various materials

A brake pad and yaw technology, applied in the field of wind turbine braking system, can solve the problems of limited brake pad function, low heat resistance and wear resistance, and reduced braking efficiency, so as to increase the friction coefficient and wear resistance. , The effect of increasing hardness and reducing noise

Active Publication Date: 2014-02-19
贵州新安航空机械有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the process of wind power generation, it is necessary to use the yaw brake disc to adjust the direction of the power generation blade. The yaw of the blade is realized by contacting the brake pad in the yaw brake disc with the shaft of the wind turbine. The conventional brake pad is composed of a single material. The function of the brake pads is relatively limited, and the best braking effect cannot be exerted. Some metal materials will cause high noise due to their high hardness, and may cause serious wear on the contact parts of the brake pads; while some Fiber materia

Method used

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  • Yaw brake pad made of various materials
  • Yaw brake pad made of various materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Such as figure 1 with figure 2 As mentioned, a yaw brake pad made of multiple materials is composed of a steel back 1 and a friction layer 2. There are bumps 10 on the steel back 1 and an embedding groove 11 where the steel back 1 and the friction layer 2 are in contact. To prevent the friction layer from falling off due to high pressure and strong vibration during high-strength work, the embedding groove 11 is designed as a square cross-section structure. At the same time, in order to ensure a smooth and pleasant high-strength work, the steel back is molded from high-strength steel.

[0019] The friction layer is composed of a heat-resistant layer 21, a wear-resistant layer 22, and a sound-absorbing protective layer 23 arranged in sequence from the inside to the outside, of which there is only one piece located in the heat-resistant layer 21, and the wear-resistant layer 22 and the sound-absorbing protective layer 23 are symmetrically distributed on the Both ends of the ...

Embodiment 2

[0021] Such as figure 1 with figure 2 As mentioned, a yaw brake pad made of multiple materials is composed of a steel back 1 and a friction layer 2. There are bumps 10 on the steel back 1 and an embedding groove 11 where the steel back 1 and the friction layer 2 are in contact. To prevent the friction layer from falling off due to high pressure and strong vibration during high-strength work, the embedding groove 11 is designed as a square cross-section structure. At the same time, in order to ensure a smooth and pleasant high-strength work, the steel back is molded from high-strength steel.

[0022] The friction layer is composed of a heat-resistant layer 21, a wear-resistant layer 22, and a sound-absorbing protective layer 23 arranged in sequence from the inside to the outside, of which there is only one piece located in the heat-resistant layer 21, and the wear-resistant layer 22 and the sound-absorbing protective layer 23 are symmetrically distributed on the Both ends of the ...

Embodiment 3

[0024] Such as figure 1 with figure 2 As mentioned, a yaw brake pad made of multiple materials is composed of a steel back 1 and a friction layer 2. There are bumps 10 on the steel back 1 and an embedding groove 11 where the steel back 1 and the friction layer 2 are in contact. To prevent the friction layer from falling off due to high pressure and strong vibration during high-strength work, the embedding groove 11 is designed as a square cross-section structure. At the same time, in order to ensure a smooth and pleasant high-strength work, the steel back is molded from high-strength steel.

[0025] The friction layer is composed of a heat-resistant layer 21, a wear-resistant layer 22, and a sound-absorbing protective layer 23 arranged in sequence from the inside to the outside, of which there is only one piece located in the heat-resistant layer 21, and the wear-resistant layer 22 and the sound-absorbing protective layer 23 are symmetrically distributed on the Both ends of the ...

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Abstract

The invention discloses a yaw brake pad made of various materials. The yaw brake pad is composed of a steel back (1) and a friction layer (2), and the friction layer (2) is formed by sequentially arranging a heat-resistant layer (21), a friction-resistant layer (22) and a denoising protection layer (23) from inside to outside. The heat-resistant layer (21) contains boron-modified phenolic resin and vanadium trioxide, so that hardness, heat resistance and instant high temperature resistance of the friction layer are improved; the friction-resistant layer (22) contains steel wool fibers, quartz sand and potassium hexatitanate, so that friction coefficient and friction resistance of the friction layer are improved; the denoising protection layer (23) contains materials, large in nonmetal content, like flake graphite, molybdenum disulfide and antimony sulfide, so that the yaw brake pad is low in noise during working, and noise inside the yaw brake pad can be shielded. Friction performance, friction resistance and denoising effect of the yaw brake pad are obviously improved, service life of the yaw brake pad is longer than that of a common yaw brake pad, and the only defect of the yaw brake pad is that contact parts are worn slightly.

Description

Technical field [0001] The invention relates to a braking system for a wind power generator, in particular to a yaw brake pad of multiple materials. Background technique [0002] As a renewable energy source, wind energy has received more and more attention from various countries. With technological advancement and sustainable development, wind power generation has flourished all over the world. The pollution-free and renewable nature of wind power makes wind power generation in all countries. There is a lot of room for development under such policies as sustainable development and energy-saving strategies. According to the latest research report released by Deutsche Bank, global wind power development is entering a stage of rapid expansion. The wind energy industry will maintain an annual growth rate of 20% by 2015. By 2010, the total output value of the industry will increase to five times the current level. [0003] In the process of wind power generation, yaw brake discs need ...

Claims

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Application Information

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IPC IPC(8): F16D69/00F16D69/02F03D7/00B22F1/00C22C38/12C22C49/00
CPCY02E10/723Y02E10/72
Inventor 范艳芳
Owner 贵州新安航空机械有限责任公司
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