A V-belt is the main connecting device that is used in the manufacture of various types of machine tools, mechanisms and machines with moving components. This tool transmits the inertial rotational movements of the engine (or some other mechanism) and brings them into final contact. In this case, V-belts circumvent the corresponding pulleys during operation and transfer of forces from one mechanism to another.
It is worth noting that the cross section of this tool forms a kind of isosceles trapezoid. Moreover, its shape may differ significantly from the standard by which this model of belt is manufactured.
Features
Each model of a V-belt is manufactured according to a special technology, taking into account the addition of several layers of rubber bonded together using high-quality adhesive. The main layers of this tool are:
- Wrapping.
- Layer of compression and stretching.
- Traction layer.
Each of the above layers allows the product to not lose its elastic properties under tremendous loads that affect it during engine rotation and transmission of traction. Thus, the presence in this device of several layers and coatings gives a guarantee for the longest possible life. V-belts can withstand enormous loads for a very long time and do not tear to a state of wear. However, if at least one tear has formed on its surface, this means that such an instrument is no longer suitable for further use. It is simply impossible to repair or restore the properties of such a belt, and the presence of cracks and other deformations will certainly lead to a break in the mechanism. When this happens, a matter of time, however, the fact that the damaged layer of the device will constantly aggravate the characteristics of the entire mechanism remains unchanged.
Rubber quality
A part such as a V-belt can only include the most heat-resistant and oil-resistant grades of rubber. These requirements are determined by the operating conditions of this mechanism, since its operation is always accompanied by constant heating and friction. In addition, the V-belt must have high wear resistance qualities. In some cases, the temperature of this device during continuous operation can reach a mark of more than 100 degrees Celsius. Given that such a V-belt is in a constant suspended state and transfers forces from one mechanism to another, low-quality parts will fail immediately after the first hours of operation. Real belts (for example, those that are used for timing vehicles) can work up to 80-90 thousand kilometers without a single strain and deformation.
Textile fiber
To achieve maximum strength and wear resistance, these tools include a special textile fiber. On broken belts, it can be seen on the very first layers - these are thin interwoven threads that are very difficult to break even with a knife.