High wear-resistant and impact-resistant aramid fiber core conveyor belt and its production process

A production process and impact-resistant technology, applied in the field of conveyor belts, can solve the problems of poor compression fatigue resistance of aramid fibers, long transmission lines, multi-layer stacking to improve strength, etc., to achieve good dynamic performance, increased rubber strength, Appropriate effect of belt softness

Active Publication Date: 2018-01-12
ANHUI OUNAI RUBBER & PLASTIC IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor compression fatigue resistance of aramid fibers, multi-layer stacking cannot be used to increase the strength
The transmission line is long, there is a certain adjustment margin, but good dimensional stability is required

Method used

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  • High wear-resistant and impact-resistant aramid fiber core conveyor belt and its production process
  • High wear-resistant and impact-resistant aramid fiber core conveyor belt and its production process
  • High wear-resistant and impact-resistant aramid fiber core conveyor belt and its production process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] figure 1 A high wear-resistant and impact-resistant aramid core conveyor belt is shown, which is composed of an aramid canvas skeleton layer 5, an impact-resistant and tear-resistant buffer layer 6, an upper covering rubber layer 3, a lower covering rubber layer 4 and an edge rubber layer 1 The upper side of the aramid canvas skeleton layer 5 is provided with two layers of impact-resistant and tear-resistant buffer layers 6, and the lower side of the aramid canvas skeleton layer 5 is provided with one layer of impact-resistant and tear-resistant buffer layers 6; the aramid canvas skeleton layer 5 Between the impact-resistant and tear-resistant buffer layer 6, between the adjacent impact-resistant and tear-resistant buffer layers 6, between the tear-resistant buffer layer 6 and the upper and lower covering adhesive layers and the edge adhesive layer through adhesive glue (after forming In the structure of the conveyor belt, the adhesive layer 7) is bonded and vulcanized to...

Embodiment 2

[0030] High wear-resistant and impact-resistant aramid conveyor belt specification 1250N / mm-1000mm (6+3), including diameter straight weft aramid canvas, impact-resistant and tear-resistant buffer layer, adhesive rubber layer, high wear-resistant and impact-resistant covering glue layer. Among them: the diameter straight weft aramid canvas warp aramid 3360dtex×2 Z90×4S70+1880 dtex nylon 66×2 Z60×1S70, that is, the warp direction aramid primary twisted yarn 3360dtex×2, twist (Z) 90, Nylon 66 primary twist yarn 1880 dtex×2, twist (Z) 60, double twist is 4 strands of aramid primary twist strand plus 1 strand of nylon 66 strand, double twist twist (S) 70, density 44 strands / dm. Nylon 66 weft thread 1880 dtex×6Z60, density 32 threads / dm. Nylon 66 connecting wire 2200 dtex×1Z100, density 88 pieces / dm. Aramid canvas thickness 2.8mm, weight per unit area 1.9kg / m 2 .

[0031] A single layer of impact and tear-resistant cushioning is used above and below.

[0032] Adhesive formula,...

Embodiment 3

[0049] High wear-resistant and impact-resistant aramid conveyor belt specification 2500N / mm-1400mm (9+4), diameter straight weft aramid canvas warp aramid 3360 dtex×9Z40×3S40+1880 dtex nylon 66×5 Z60×1S40, namely warp direction Aramid primary twisted yarn 3360dtex×9, twist (Z) 40, nylon 66 primary twisted yarn 1880dtex×5, twist (Z) 60, double twist is 3 strands of aramid primary twisted yarn plus 1 strand of nylon 66 strands, Double twist twist (S) 40, density 22 strands / dm. Weft thread 1880dtex nylon 66×9Z60, density 32 threads / dm. The connecting wire is 3300dtex nylon 66×1Z100, and the density is 44 pieces / dm. Aramid canvas thickness 3.2mm, weight per unit area 1.94.6kg / m 2 , on the rubber side of the upper cover, use a second layer of shock-resistant buffer layer, which is placed staggered with the center line of the belt at an angle of 45 degrees. A single layer of shock-resistant buffer layer is used on the rubber side of the lower cover, and it is placed vertically wi...

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Abstract

The invention relates to a conveying belt, in particular to a high-abrasion-resistance anti-impacting aramid fiber core conveying belt and a production technology thereof. The conveying belt is formed by an aramid fiber canvas skeleton layer, anti-impacting and anti-tearing buffering layers, an upper covering rubber layer, a lower covering rubber layer and a side rubber layer; the anti-impacting and anti-tearing buffering layers are arranged at the upper side and the lower side of the aramid fiber canvas skeleton layer, and the aramid fiber canvas skeleton layer and the anti-impacting anti-tearing buffering layers, the adjacent anti-impacting anti-tearing buffering layers as well as the anti-impacting anti-tearing buffering layers, the upper and lower covering rubber layers and the side rubber layer are bonded through bonding glue and vulcanized into a whole; aramid fiber canvas is of a straight warp and straight weft structure, and warp-wise stress threads are composite thread ropes formed by doubling and twisting straight aramid fiber, nylon 66 composite thread ropes, aramid fiber plied yarn and nylon 66 plied yarn after twisting. A belt body of the high-abrasion-resistance anti-impacting aramid fiber core conveying belt has proper softness, and the anti-impacting capacity is enhanced. The anti-impacting anti-tearing buffering layers are additionally arranged, and the requirement for anti-impacting performance of an application environment with different impact types is met.

Description

technical field [0001] The invention relates to a conveyor belt, in particular to a high wear-resistant and impact-resistant aramid core conveyor belt and its production process, in particular to a high wear-resistant and impact-resistant belt with straight warp and straight weft aramid fiber canvas as the tensile layer. Aramid core conveyor belt. Background technique [0002] Conveyor conveying is the most economical conveying method, so it has been widely used in various industries. The basic requirements of conveyor belts for conveyors are efficient use, convenient maintenance, safety and reliability, energy saving and environmental protection. Due to different application environments, the performance requirements of the core material and cover rubber of the conveyor belt are different. The traditional conveyor belt skeleton material is EP, EE canvas with polyester as the stress line and NN nylon canvas layered conveyor belt with nylon 6 and nylon 66 as the stress line...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B65G15/34B32B25/02B32B25/10B32B27/02
CPCB32B25/02B32B25/10B32B2262/02B32B2307/554B32B2307/558B32B2433/02B65G15/34
Inventor 操江胡世献徐纯洁
Owner ANHUI OUNAI RUBBER & PLASTIC IND
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