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V-ribbed belt and its use

A V-ribbed belt and vinyl technology, applied in other household appliances, belts, applications, etc., can solve the problems of lowering, not suitable for high-load transmission, etc., and achieve the goal of improving durability, reducing torque loss, and improving noise resistance Effect

Active Publication Date: 2022-02-22
MITSUBOSHI BELTING LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although it is possible to reduce heat generation (torque loss) by reducing the compounding amount of carbon black as in Patent Document 2, there is a fear that the modulus and hardness of the rubber will decrease, and the belt may not be suitable for high-load transmission. It is difficult to adopt under the requirements of high load transmission in recent years
[0007] In this way, in the prior art, there is no V-ribbed belt capable of improving durability, anti-noise generation, and reducing torque loss at the same time.

Method used

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  • V-ribbed belt and its use
  • V-ribbed belt and its use
  • V-ribbed belt and its use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～5 and comparative example 2～4

[0139] (Preparation of V-ribbed belt)

[0140] Using a cylindrical inner mold with a flexible sheath attached to the outer peripheral surface, an unvulcanized stretch layer sheet is wound around the flexible sheath on the outer peripheral surface, and the core wire forming the core is wound helically on the sheet (Twisted cord), and further wound an unvulcanized sheet for a compression rubber layer and a knitted fabric made of the rubber composition shown in Table 3 to produce a laminate. The inner mold wound with the cylindrical laminate is concentrically placed in the cylindrical outer mold with a plurality of rib molds engraved on the inner peripheral surface, and the above-mentioned flexible sheath is expanded to press the laminate into the rib mold. In, vulcanization is carried out at 180°C. Then, pull out the inner mold from the outer mold, release the vulcanized rubber sleeve with multiple ribs from the outer mold, use a cutter to cut the vulcanized rubber sleeve into ...

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Abstract

The present invention relates to a V-ribbed belt, which is a V-ribbed belt in which the friction transmission surface of a compression rubber layer is covered with a knitted cloth, wherein the compression rubber layer is made of a rubber composition containing ethylene-α-olefin elastomer and carbon black The solidified product is formed, the above-mentioned carbon black contains soft carbon with a primary particle size of 40 nm or more and hard carbon with a primary particle size of less than 40 nm, and the ratio of the number of particles of the above-mentioned soft carbon to the above-mentioned hard carbon is the former / the latter=3 / 97~ 25 / 75.

Description

technical field [0001] The present invention relates to a V-ribbed belt having a friction transmission surface covered with fabric (knitted fabric, etc.), excellent in durability and noise resistance, and capable of reducing torque loss, and a method of use thereof. Background technique [0002] Friction belts are widely used for driving auxiliary machinery of automobiles and driving agricultural machinery. Examples of friction transmission belts include flat belts, V-belts, and V-ribbed belts, which are used in contrast to meshing belts typified by toothed belts that transmit power through mechanical engagement between pulleys and toothed portions. Among them, V-ribbed belts can achieve both high transmission capacity and bending fatigue resistance, so they are generally used for auxiliary drive of automobiles. Chloroprene rubber is often used as the rubber component of the rubber composition forming the compression layer of the V-ribbed belt. However, in recent years, eth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08K3/04F16G5/20C08L23/16F16G5/00F16G5/06
CPCF16G5/20F16G5/00F16G5/06C08K3/04C08L23/16C08K7/02C08K2201/011C08K2201/014F16G5/08B32B2264/301B32B1/00B32B5/026B32B25/02B32B25/10B32B25/14B32B2250/02B32B2264/10B32B2413/00C08K3/22C08K5/09C08K5/14C08K2003/2296F16G1/04F16G1/12F16G1/21F16G1/28
Inventor 武市博树今井宏贵光富学
Owner MITSUBOSHI BELTING LTD
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