D-type joined V-belt

Abstract

The invention discloses a D type joined V belt, which comprises more than two single V belts and a connecting layer, wherein a core layer of the connecting layer comprises more than two layers of dipping polyester cords, and the two sides of the core layer of the connecting layer are respectively bonded with a layer of cord ply compound. The single V belt comprises under glue, buffer stock, dipping polyester thread rope and a cord fabric layer, wherein the cord fabric layer is arranged on the outset layer of the single V belt, the under glue is arranged on the core portion of the single V belt, the dipping polyester thread rope is buried in the buffer stock, and the under glue is arranged between the buffer stock and the cord fabric layer. The D type joined v-belt also discloses a proper raw material ratio and a mixing process which are used by various glue layers. The D type joined v-belt has high bearing capacity and long service life, and is widely used in high power drive workplaces of metallurgy, cement and electric power industries and the like.

Description

technical field [0001] The invention relates to the field of rubber products, in particular to a D-type combined V-belt. Background technique [0002] V-belt is a kind of conveyor belt widely used in various machines. The V-belt structure generally includes rubber elastic body and skeleton, and most of the skeleton materials are wire ropes. With the use of the V-belt, the temperature of the belt body will increase, the elastic body will gradually age, the bonding performance between the elastic body material and the cord will decrease, and the elastic body material will gradually separate from the cord, resulting in the overall deterioration of the V-belt. The strength gradually decreases. Therefore, the bonding strength between the cord and the elastomer has always been one of the important performance indicators of the V-belt. At present, the bonding strength between the cord and the elastic body is generally low, which is mainly caused by the unreasonable structural desi...

AI Technical Summary

Problems solved by technology

At present, the bonding strength between the cord and the elastic body is generally low, which is mainly caused by the unreasonable structural design of the V-belt, the raw material formula of the rubber elastic body and the poor mixing process, which lead to poor viscosity of the rubber material, etc.

The purpose of grouped V-belts is to solve the problem of large elongation and small transmission power of a single V-belt, but it is difficult to use and match groups of grouped V-belts. The connection strength of the V-belt is not enough. During the operation, due to the different elongation of each V-belt and the asynchronous transmission, it will not only cause the loss of transmission efficiency, but also reduce the service life of the V-belt. Therefore, in order to maintain the transmission of each V-belt Synchronization, improving the working efficiency and service life of the V-belt, and improving the connection strength between the connecting part of the V-belt and each single V-belt (that is, the pull-off strength of the connecting layer) is very important. The currently used combined V-belts, Due to the unreasonable combination of structure and materials of the parts connecting the single V-belts, the lateral stiffness and stability of the combined V-belts are poor, the force is uneven, and the overall bearing capacity is not high. The main performance is the pulling of the connecting layer. The shedding strength is low, so it also affects the transmission efficiency and service life of the combined V-belt. The above-mentioned defects of the V-belt are most obvious in the D-type combined belt.

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