What are the common problems of belt sander?

Vibration problem: Some belt sanders are hung with sand belts. After the machine is started, the machine vibrates very much. If it is not fixed, it will "run around"! What is the reason? The main reason is that the balance of the rotating wheel is not good! The rotating wheels include rubber wheels, guide wheels, and motor pulleys. One of the three rotating wheels has poor precision, poor balance, and poor machine vibration! Another reason is that the parts of the support wheel have too large a fit gap, which causes relative movement between the parts and vibration. Furthermore, the motor is not fixed well, and it also vibrates.

Noise problem: The noise is mainly due to insufficient rigidity of the base and supporting parts, and excessive clearance of matching parts (some factories have very poor and backward processing equipment, coupled with poor quality awareness, the manufactured parts are very poor, and there are almost no matching tolerance requirements! ), the selection of low-quality bearings, and the speed of the emery cloth belt are too fast.

Lifespan problem: Some abrasive belt machines break down after a short period of time. There are several reasons: the adjustment part is made of gray cast iron, and 45# carbon steel is not used for precision casting, or heat treatment is not carried out, the quality of the bearing is not good, the lubrication is not good, The main shaft has not been subjected to modulation heat treatment, or the hardness of the treatment is too low or too high (too low is easy to wear, too high is easy to break), and the quality of the motor is not good.

Problems of use: The size and structure design of the machine are very important. A better structure and a scientific size are the key to the efficiency of the polishing workers.