Belt drive mechanisms are general application in machinery. And there are several types of belt mechanisms are avaliable in market. One of these types is the synchronous belt drive mechanisms which has various advantages over the use of v-belt drive mechanisms. In here, we explain;
The general difference of synchronous belt drive mechanisms other than v-belts, they have teeth at the inner side of belt. These teeth are comply with the grooves of sprockets which are acting as pulleys at the power transmission between different shafts are motor and shafts.
Because of these teeths that attaches the synchronous belt drives onto sprockets, there is no slippage and creep of belt on sprockets. Because of this, there is no place of loss of rotations and powers on given time like v-belts. At v-belt mechanisms, there can be slippage and creep of belts resulting from the the toothless mechanism.
At v-belt mechanisms, these creep and slippage can be compansated with the application of high assembly strain application between the belts and pulleys.
But for synchronous belt mechanisms, there is no need of such high assembly loads as v-belts to obtain slipless and creepless drive. This means that, there is no excessive radial loads on motor and shafts. But also, there is slight of assembly load application for synchronous belt drives.
Because these nature of synchronous belt mechanisms, they are also called as ‘timing belt’ mechanisms. And they can be used in machineries at where precision is very important. At power transmission of 3D printers, robotic mechanisms, synchronous belt drive mechanisms are generally used.
In market, some advanced synchronous belts are produced from fiberglass core as tensile stressed, which are coated with fabrics or rubbers. They are very long lasting and has very good load and power transmission capacities.
Like other machine elements applications, synchronous belt drive mechanisms have also standards. There are lots of brands that are producing synchronous belts. And these brands have catalogues to select a proper synchronous belt drive mechanisms for your application.
Actually, design procedure of synchronous belt drive mechanism is very similar with v-belt drive design. You can design a synchronous belt drive mechanism by following v-belt drive design procedures and steps. Here we provide you the summary of design steps for synchronous belt drive mechanisms;
When you are selecting your sprockets for your system, be sure about that the side flanges of sprockets which prevent the slippage of synchronous belts axially from sprockets.
In the installatiom step of synchronous belts, a small center distance allowance must be given to attach belt teeths without force. Then, provide required tension with the increasing the center distance which is generally recommended from manufacturer.
The loads on thigh and slack sides of synchronous belts are much more lower than the v-belts, which provides lower bearing loads.
These are the general important points about the synchronous belt drive mechanisms and design of them. Do not forget to leave your comments and questions about synchronous belt or timing belt mechanisms below.
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