There are various names of air expansion shaft, also known as air pressure shaft, expansion shaft, air expansion shaft, air expansion roller, air filling shaft, pressure shaft, air expansion roller, etc. Although there are many names, the working principle is the same.

Air expansion shaft is a kind of special unwinding, that is to say, the shaft whose surface can bulge after high pressure pumping, and the shaft whose surface part retracts quickly after venting is called air expansion shaft.

Flat type inflatable shaft, key type inflatable shaft and slip type inflatable shaft are all common inflatable shafts (inflatable shafts). How to install them on cylindrical shafts when various inflatable shafts are applied?

There are two ways to install the inflatable shaft

One is to install it on the cone shaft immediately

The second is to install the tightening sleeve or the stripping sleeve on the cylindrical shaft

So how to pump air to the expansion shaft

As long as the air gun inflates the air into the air nozzle on the air expansion shaft, the key strip will protrude against the external parts (such as the circular paper tube). When the paper needs to be released, press the sliding air core on the air nozzle by hand to deflate, and the key strip will return to its original appearance.

When installing the locking sleeve or withdrawal sleeve, it is allowed to use the shaft seat with lower cost (without the cost of inverted cone), which will apply large shaft dimensional tolerance and change the position of rolling bearing on the shaft. Because the specification accuracy of the shaft sleeve is not as high as that of the rolling bearing, the shaft sleeve is not suitable for the application of high accuracy or high rotation rate. However, if the accuracy is high, it is suggested that the air expansion shaft should be installed on the cone shaft immediately.

Air expansion shaft is a kind of special unwinding, that is to say, the shaft whose surface can bulge after high pressure pumping, and the shaft whose surface part retracts quickly after venting is called air expansion shaft. What is the cause of steam leakage of air expansion shaft? Let's talk about the cause of steam leakage as follows:

1. If the hose is cracked, there will be product quality problems in the hose itself. It is necessary to remove the shaft head and replace one hose again.

2. There is a gap in the sealing ring, which must be sealed in many ways.

3. If the pressure ring is loose, just tighten the pressure ring, and pay attention to whether it is loose at any time.

4. A part of the air nozzle leaks steam. At this time, just remove and replace it and install it again.