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A wear-resistant and tear-resistant molded V-ribbed belt and its preparation method

A V-ribbed belt, anti-tearing technology, applied in the direction of transmission belts, mechanical equipment, belts/chains/gears, etc., can solve the problems that the wedge rubber layer cannot be strengthened, and it is difficult to solve the wedge rubber layer cracking, so as to improve the tear resistance performance , prevent cracking, high transmission efficiency effect

Active Publication Date: 2022-05-06
NINGBO FENGMAO FAR EAST RUBBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the V-ribbed belt structure, the tear resistance of the V-ribbed belt is improved by using its skeleton support function by adding an intermediate ply woven from impregnated cotton fibers (that is, the anti-tearing layer). There are the following problems: when the V-belt is driven, the wedge rubber layer is the main part that bears the external force, but the anti-tear layer arranged between the protective layer and the first adhesive layer cannot better strengthen the wedge rubber layer It is difficult to solve the problem of cracking of the wedge rubber layer

Method used

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  • A wear-resistant and tear-resistant molded V-ribbed belt and its preparation method
  • A wear-resistant and tear-resistant molded V-ribbed belt and its preparation method

Examples

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Effect test

Embodiment 1

[0043] A wear-resistant and tear-resistant molded V-ribbed belt, which sequentially includes an annular belt body 1 and a wedge rubber layer 2 from the outside to the inside, and the inner surface of the wedge rubber layer 2 is provided with 6 equidistant and consistent with the transmission direction. Wedge body 2-1, the belt body 1 sequentially includes a belt back layer 1-1 and a skeleton layer 1-2 from outside to inside. The belt back layer 1-1, the skeleton layer 1-2 and the wedge rubber layer 2 are all made of EPDM rubber; the skeleton layer 1-2 is provided with a number of 10 belts distributed along the circumference of the belt body 1. A cord 1-2-1, said cord 1-2-1 being made of polyester. The effective length of the V-ribbed belt is 307.179mm, the width is 9.38mm, and the total thickness is 2.96mm, wherein the thicknesses of the wedge rubber layer 2, the skeleton layer 1-2, and the belt back layer 1-1 are respectively 1.56mm , 0.62mm, 0.78mm, the thickness (wedge hei...

Embodiment 2

[0053] The difference between this example and Example 1 is that the wear-resistant cloth 2-2 is a modified wear-resistant cloth, and the preparation process is as follows:

[0054] (a) Preparation of carboxy-modified cotton fiber: After mixing uniformly the photoinitiator TPO, acrylic acid and alcohol (the volume ratio of ethanol and water is 2:1) with a mass ratio of 30:1:60, the grafting reaction solution is obtained; Cotton fiber is dispersed in the grafting reaction liquid, and the mass volume ratio of described cotton fiber and grafting reaction liquid is 1g:20mL, reacts 4min under ultraviolet light irradiation; After washing, dry to obtain carboxyl modified fiber;

[0055] (b) Preparation of modified polychloroprene: After mixing sodium hydroxide, sodium sulfite and water with a mass volume ratio of 0.1g:0.05g:100mL, an aqueous phase is obtained; the mass ratio is 100g:10g:3g: After mixing 0.3g of chloroprene, vinylamine, disproportionated rosin and mercaptan evenly, t...

Embodiment 3

[0059] The difference between this example and Example 1 is that the wear-resistant cloth 2-2 is a modified wear-resistant cloth, and the preparation process is as follows:

[0060] (a) Preparation of carboxy-modified cotton fiber: After mixing uniformly the photoinitiator TPO, acrylic acid and alcohol (the volume ratio of ethanol and water is 2.5:1) with a mass ratio of 35:1:55, the grafting reaction solution is obtained; Cotton fiber is dispersed in the grafting reaction liquid, and the mass volume ratio of described cotton fiber and grafting reaction liquid is 1g:25mL, reacts 5min under ultraviolet light irradiation; After washing, dry to obtain carboxyl modified fiber;

[0061] (b) Preparation of modified polychloroprene: After mixing sodium hydroxide, sodium sulfite and water with a mass volume ratio of 0.1g:0.08g:95mL, an aqueous phase is obtained; the mass ratio is 100g:13g:4g: After mixing 0.4g of chloroprene, vinylamine, disproportionated rosin, and mercaptan evenly,...

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Abstract

The invention relates to the technical field of transmission mechanisms, and discloses a wear-resistant and tear-resistant molded V-ribbed belt and a preparation method thereof. The V-ribbed belt sequentially includes an annular belt body and a wedge rubber layer from the outside to the inside. The belt body includes a belt back layer and a skeleton layer from the outside to the inside. A wear-resistant cloth is provided on the surface of the wedge rubber layer close to its inner surface, and the wear-resistant cloth is parallel to the inner surface contour of the wedge. The V-ribbed belt of the present invention can effectively improve the tear resistance of the V-ribbed belt, especially the wedge rubber layer, by arranging wear-resistant cloth inside the wedge rubber layer, and the gap between the wear-resistant cloth and the wedge rubber is not easy to crack.

Description

technical field [0001] The invention relates to the technical field of transmission structures, in particular to a wear-resistant and tear-resistant molded V-ribbed belt and a preparation method thereof. Background technique [0002] Ribbed belts are also called multi-groove belts or multi-groove belts. In terms of structure, flat belts are used as the base, and equidistant longitudinal wedges (wedge angles are usually 40°) are arranged on the inner surface. Therefore, flat belts and V-belts are combined. Advantages: Compared with the flat belt, the wedge on the surface of the multi-ribbed belt increases its contact surface and friction with the pulley, so it is not easy to slip and improves the transmission efficiency; compared with the V-belt, the multi-ribbed The load distribution along the belt width is more uniform, and because the belt body is thinner, the centrifugal stress and bending stress it bears during operation are smaller, so a smaller transmission wheel can b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D03D13/00D03D15/58F16G1/28
CPCF16G1/28D03D13/008D10B2201/02D10B2331/10
Inventor 蒋春雷戚好来董勇修
Owner NINGBO FENGMAO FAR EAST RUBBER