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Resin-based yawing brake pad for wind-generated generator and preparation method thereof

A technology for wind turbines and brake pads, applied to mechanical equipment, friction linings, etc., which can solve the problems of easy embroidering, damage to the dual disc, and easy generation of howling, etc., to reduce hardness, reduce manufacturing costs, and improve mechanical properties Effect

Inactive Publication Date: 2011-01-26
HUNAN BOYUN AUTOMOBILE BRAKE MATERIALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the iron-based friction plate has defects such as easy embroidering, damage to the dual disc, and easy generation of howling, while the resin-based friction material has a series of advantages such as large friction performance adjustment, no damage to the dual disc, low braking noise, and low price. , although its heat resistance is not as good as that of powder metallurgy friction plates, but since the yaw brake operates at low speed, the temperature of the friction plates is difficult to exceed 200°C, so resin-based synthetic materials are generally used in foreign countries instead of iron-based powder metallurgy friction materials

Method used

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  • Resin-based yawing brake pad for wind-generated generator and preparation method thereof
  • Resin-based yawing brake pad for wind-generated generator and preparation method thereof
  • Resin-based yawing brake pad for wind-generated generator and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The formula description of wind power generator yaw brake pad provided by the invention

[0027] Phenolic resin / nitrile rubber 8, aluminum silicate / KFK fiber 22,

[0028] Aramid fiber 2, Potassium titanate whisker 5,

[0029] Steel fiber 10, copper fiber 5,

[0030] Antimony sulfide 8, graphite 15,

[0031] Chromite 1, Pyrite 2,

[0032] Modified alumina 7, organic friction powder 2,

[0033] Barite 15.

[0034] In this formula system, the friction material uses resin and rubber as the matrix, chromite, pyrite, and modified alumina are used as friction enhancers, antimony sulfide, and flake graphite are used as lubricating components, and steel fibers, copper fibers, and aromatics are added. Alon fibers, potassium titanate whiskers, ceramic fibers and mineral fibers are used as reinforcing phases. In addition to reducing costs, mineral fillers can also stabilize the friction coefficient, adjust the porosity of the material, and improve braking stability.

[0035]...

Embodiment 2

[0050] The formula description of wind power generator yaw brake pad provided by the invention

[0051] Phenolic resin / nitrile rubber 5, aluminum silicate / KFK fiber 25,

[0052] Aramid fiber 1, Potassium titanate whisker 10,

[0053] Steel fiber 20, copper fiber 10,

[0054] Antimony sulfide 3, graphite 6,

[0055] Chromite 2, Pyrite 1,

[0056] Modified Aluminum Oxide 4, Organic Friction Powder 3,

[0057] Barite 10.

[0058] Description of the preparation process of resin-based yaw brake pads for wind turbines

[0059](1), batching: weigh each component material according to the above ratio;

[0060] (2) Mixing: Put the weighed materials into the high-speed mixer, and the mixing time is 5 minutes;

[0061] (3) Molding: Weigh the mixture according to the model of the brake pad, pour it into the hot pressing mold, and the pressing pressure is 300kgf / cm 2 , the hot-pressing temperature is 200°C, the exhaust is 11 times, and the holding time is 60s / mm;

[0062] (4) Heat...

Embodiment 3

[0065] The formula description of wind power generator yaw brake pad provided by the invention

[0066] Phenolic resin / nitrile rubber 10, aluminum silicate / KFK fiber 15,

[0067] Aramid fiber 2, Potassium titanate whisker 4,

[0068] Steel fiber 10, copper fiber 5,

[0069] Antimony sulfide 3, graphite 16,

[0070] Chromite 1, Pyrite 1,

[0071] Modified alumina 8, organic friction powder 5,

[0072] Barite 20.

[0073] Description of the preparation process of resin-based yaw brake pads for wind turbines

[0074] (1), batching: weigh each component material according to the above ratio;

[0075] (2) Mixing: Put the weighed materials into the high-speed mixer, and the mixing time is 4 minutes;

[0076] (3) Molding: Weigh the mixture according to the model of the brake pad, pour it into the hot pressing mold, and the pressing pressure is 280kgf / cm 2 , the hot-pressing temperature is 180°C, the exhaust is 12 times, and the holding time is 55s / mm;

[0077] (4) Heat treat...

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PUM

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Abstract

The invention discloses a resin-based yawing brake pad for a wind-generated generator and a preparation method thereof. The resin-based yawing brake pad comprises phenolic resin, nitrile butadiene rubber, organic friction powder, chopped steel fiber, red copper fiber, aramid fiber, aluminum silicate / KFK fiber, graphite, barite and the like. The preparation method comprises the following steps of: weighing various components according to the formula; mixing the components by a plow harrow type blender mixer at high speed; ensuring that each fiber is fully dispersed uniformly; hot pressing forming at the temperature of 160-200DEG C; carrying out heat treatment in a heat treatment tank; cooling to the room temperature along the temperature of the furnace; and finally, machining to obtain the resin-based yawing brake pad. Compared with the general powder metallurgy brake pad, the yawing brake pad has the advantages of proper static friction coefficient, stable friction coefficient, low brake noise, smaller antithesis wear and lower manufacturing cost and can fully meet the yawing low-speed brake of the wind-generated generator.

Description

technical field [0001] The invention relates to a brake pad, in particular to a resin-based composite friction material used in a yaw braking system of a wind power generator and a preparation method thereof, belonging to the technical field of new materials. Background technique [0002] With the advancement of science and technology and the rapid development of the economy, human demand for electricity continues to expand. The use of coal, oil and other non-renewable energy sources for power generation is facing the dilemma of increasingly scarce resources, and it is not in line with the country's strategic decision for sustainable development. As a green and clean energy, wind energy not only conforms to the direction of national energy reform, but also is a renewable resource, which also has positive significance for environmental protection. In recent decades, it has been favored by countries all over the world, especially developed countries such as Europe, America an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16D69/02
Inventor 杨阳刘伯威张利军
Owner HUNAN BOYUN AUTOMOBILE BRAKE MATERIALS
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