Solution to the Heating of the Spindle of a Plastic Pulverizer
The most easily heated part of a plastic milling machine is the spindle, which can be said to be the core component of the plastic milling machine. We need to take good care of the spindle, how can the spindle be carefully cared for? Let's take a plastic grinder as an example.
Solution to the Heating of the Spindle of a Plastic Pulverizer
Except for the sliding bearings used at the upper end of the main shaft, plastic grinding machines use dynamic bearings in other transmission departments. Therefore, it is necessary to operate under good lubrication conditions, otherwise the bearings will be damaged and the service life will be shortened. The main shaft of the plastic grinder should be oiled every eight hours, but attention should be paid to the fact that if the oil in the oil cup is not consumed or is consumed too slowly, the oil passage should be cleaned immediately, and 50 # mechanical oil should be added. The oil cup is located at the upper end of the main shaft. The main shaft base bearing and the roller shaft bearing should be filled with 3 # lithium based grease with a Grease gun every shift. The analyzer bearing should be disassembled and cleaned every six months, and 3 # lithium based grease should be added, Add lithium based lubricating grease to the fan bearing chamber.
The most important thing is that after the lubrication work is done, we need to solve the heating problem of the main shaft system of the plastic powder grinder: we need to minimize the intermediate transmission links (such as belts, gears, etc.) as much as possible. Shorten the length of the transmission chain as much as possible. Some devices directly use electric ultrafine grinding spindles with built-in motors to shorten the length of the transmission chain to zero, but this also introduces another heat source: the heating of the ultrafine grinding spindle motor. In order to reduce the fever of the motor, a permanent magnet ultrafine grinding spindle motor can be considered. Compared with an induction motor, the rotor of the permanent magnet motor does not generate heat, thereby greatly reducing the temperature of the spindle.