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Friction brake disk of double-speed electric-block and preparation method thereof

An electric hoist, friction braking technology, applied in the direction of friction linings, chemical instruments and methods, mechanical equipment, etc., can solve the problems that restrict the popularization and application of electric hoist brake clutches, etc., and achieve large braking torque and high shear strength , The production process is simple and convenient

Active Publication Date: 2010-10-27
杭州汉乐科新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing friction materials still fail to meet the above requirements, which has restricted the further popularization and application of electric hoist brake clutches, and has become an important factor restricting the development of my country's electric hoist crane industry.

Method used

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  • Friction brake disk of double-speed electric-block and preparation method thereof
  • Friction brake disk of double-speed electric-block and preparation method thereof

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Experimental program
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Effect test

Embodiment Construction

[0024] The technical solution of the present invention will be further described below.

[0025] After in-depth research, the inventor used aramid fiber, chopped carbon fiber and mineral composite fiber materials as reinforcing fibers, hydrogenated nitrile rubber and melamine-cashew nut shell oil modified phenolic resin as binder, and medium carbon friction performance modifier The main formula system of the company, using one-time hot pressing forming technology, has developed a high-performance friction material used in the friction brake disc of the two-speed special-shaped electric hoist.

[0026] The two-speed electric hoist friction brake disc provided by the present invention includes an iron-based framework 1 and a friction material layer 2 bonded and fixed on the braking surface of the iron-based framework; the components and parts by weight contained in the friction material layer are:

[0027] 6-8 parts of modified phenolic resin, 2-3 parts of aramid fiber (preferab...

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Abstract

The invention relates to a friction brake disk of a carbon-base double-speed electric-block and a preparation method thereof, aiming to provide the brake disk which has large brake moment, high shear strength, high temperature resistance, wear resistance, environmental protection and low noise. The preparation method has the advantages of simple technology, convenient manufacture and low cost. The invention has the technical scheme that the friction brake disk of the double-speed electric-block comprises an iron-base frame and a friction material layer which is attached to the brake surface of the iron-base frame, wherein the friction material layer comprises modified phenol-formaldehyde resin, aramid fiber, short carbon fiber, SACF mineral fiber, precipitated baryte, modified bauxite, metal sulfides, hydrogenated nitrile-butadiene rubber, metal fiber, nano calcium carbonate, stearic acid, vulcanization accelerator, medium-carbon frictional property modifier and melamine-cashew nut shell oil. The preparation method comprises the following steps: (1) weighing raw materials; (2) synthetically kneading the raw materials; (3) compression molding; (4) thermocuring; and (5) machining.

Description

technical field [0001] The invention relates to a key component of a hoisting machine and a manufacturing method thereof, in particular to a friction brake disc of a carbon-based two-speed electric hoist and a manufacturing method thereof. Background technique [0002] With the rapid development of China's economic construction and manufacturing industry, the market demand for electric hoist cranes is also increasing significantly. In recent years, the annual growth rate of China's electric hoist crane production has exceeded 20%. Due to the continuous expansion of industrial production scale and the increasing productivity, as well as the gradual increase in the proportion of material handling costs in the production process, the demand for large-scale high-speed and automated two-speed electric hoist cranes has continued to grow. At present, the two-speed electric hoist crane has become an important link in the automated production process and an indispensable part of auto...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B66D5/02F16D69/02C09K3/14B29C43/58C08L9/02C08K13/04C08K7/06C08K7/04
Inventor 徐南汉章春华谢海涛胡斌王光荣
Owner 杭州汉乐科新材料科技有限公司
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