The principle of the damping shaft on a notebook computer: in fact, friction is generated by the squeeze between the gasket and the gasket, and the amount of friction depends on the number of gaskets installed How much is related to the tightness of the nut.

For example, when we open the laptop screen, the hinge of a notebook requires a certain amount of strength, and this strength does not need to be great, and when we stop turning, the screen will not go up and down Shaking from side to side and falling, but relying on the friction on the shaft to make the notebook screen stay where we want.

Common problems with damping shaft:

The most common problem of the damping shaft is the wear of the gasket between the shafts, which is also a common equipment problem during the use of the shaft, which is mainly caused by the metal characteristics of the shaft gasket: metal Although the hardness is high, it has poor retreat (cannot be restored after deformation), poor impact resistance, and poor fatigue resistance, so it is easy to cause adhesive wear, abrasive wear, fatigue wear, fretting wear, etc.

Most of the damping shaft wear is not easy to detect. Only when the damping stays at a large amplitude or abnormal noise, etc., will it be noticed. But when people notice, most of the transmission The shafts are worn out, which reduces the damping effect.