Polyester tangential belt with long service life, and manufacturing method thereof

Abstract

The invention discloses a polyester tangential belt having a long service life, and a manufacturing method thereof. The polyester tangential belt comprises an upper rubber transmission layer, an upperbuffer layer, a skeleton layer, a lower buffer layer and a lower rubber friction layer which are sequentially adhered from top to bottom, the upper buffer layer includes at least one set of a first elastomer layer and a second elastomer layer which are sequentially adhered from top to bottom, or at least one set of the second elastomer layer and the first elastomer layer which are sequentially adhered from top to bottom; the lower buffer layer includes at least one set of the first elastomer layer and the second elastomer layer which are sequentially adhered from top to bottom, or at least one set of the second elastomer layer and the first elastomer layer which are sequentially adhered from top to bottom; and the first elastomer layer is a TPU sheet layer having a hardness of 95A, and the second elastomer layer is a TPU sheet layer having a hardness of 85A. The single structure of every buffer layer is changed, and the TPU sheets with different hardness values and different thicknesses are compounded, so the strength at the joint is increased, and the purpose of prolonging the service life is achieved.

Description

technical field [0001] The invention belongs to the technical field of industrial transmission flat belts, and in particular relates to a polyester dragon belt with high service life and a manufacturing method thereof. Background technique [0002] At present, most of the skeleton materials of belts used in the field of industrial transmission and transmission are polyamide (nylon) sheets. The disadvantages are that the belt body has high hardness, large wheel diameter, large deformation under tension, and the belt body is greatly affected by temperature and humidity. Easy to bend and deform. Another major type of commonly used transmission belt in the transmission belt industry is polyester fiber as the skeleton, that is, polyester belt. Conventional polyester belt consists of five layers, from top to bottom: upper rubber transmission layer, upper thermoplastic polyurethane elastomer (TPU) buffer layer, middle polyester fiber skeleton layer, lower thermoplastic polyurethan...

AI Technical Summary

Problems solved by technology

Because the TPU sheet at the joint must be subjected to high-temperature treatment at 165°C during connection, and the TPU material after high-temperature treatment and then cooled has a large mechanical decline, and has a certain degree of brittleness, and its hardness will increase, which causes the joint to become The "weak" part of the mechanical properties of the entire belt is prone to breakage during repeated continuous high-speed operation

[0004] When tracking the use of polyester belts by customers, it is also found that 95% of polyester belts cannot be used because of broken joints

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