The installation and tensioning of synchronous belts & wheels are also the knowledge we need to master in the process of redesign, today I will share some types of synchronous wheels and applications, so that we can quickly select the design;
Secondly, share how to design the tensioning mechanism between some belt drives, and what are the commonly used designs
1.Classification of synchronous wheels;
1.1. Jack-tight synchronous wheel;
It means to lock a few jacking screws to tighten the rotating shaft, which is suitable for low-speed and low-load occasions
1.2. Clamping synchronous wheels:
It is characterized by the ability to clamp the drive shaft and realize synchronous transmission, which is suitable for occasions that require quick installation and disassembly
1.3. Expansion sleeve synchronous wheel;
The synchronous pulley and the transmission shaft can be fastened together through the expansion sleeve to achieve synchronous transmission, which can realize rapid installation and disassembly, and can ensure the stability and reliability of synchronous transmission
1.4. Synchronous wheels with keys;
The key is installed between the synchronous pulley and the transmission shaft, and the keyway of the transmission shaft and the synchronous pulley is in contact with the two sides of the key to realize power transmission
The contact area of the key is large, which can transmit large torque, and is suitable for occasions that require high-power transmission
The above is the type of synchronous wheel commonly used by the author, sometimes it is not that we want to use it with a key, mainly because some small motors are milled on a round shaft and a flat position, and only the first few can be used;
After reading these kinds of readers, do you feel that the synchronous wheel is much clearer?
2.Tension design of synchronous belt drive;
2.1. Adopt a tensioner wheel installed on the inner side or outer side for tensioning;The specific design can refer to the following figure
The tensioner is the wheel used to tension the timing belt, and it is usually used with the timing belt pulley to keep the timing belt tight, and to ensure the stability and reliability of the transmission;
2.2. The motor is designed to be adjustable or the distance of the driving wheel is adjusted
By adjusting the distance of the driving wheel, the tension of the timing belt can be changed to suit different application needs. The advantage of this method is that it is simple and easy to use and can be used in a variety of different applications
The above is more commonly used in tension design, if there are other ways to leave a message, the author will continue to add through the next issue;
3.Introduction to the application of synchronous wheel case;
The application of synchronous belt drive is very wide, basically everywhere, and several cases are analyzed as examples
Today I know the classification of synchronous wheels, in fact, the choice of synchronous pulleys is often not selected with keys, because the load is small, the motor used is also small, so many are other types, because the motor shaft is a round shaft, and the shaft is milled with a flat position;
Therefore, we use it flexibly when choosing synchronous pulleys, there is no need for fixed routines, and we continue to learn Xi, use, and summarize.