As the core functional components of automatic winding machines, bearings play a key role in the spindle system, wire arrangement system and ejector tailstock. Due to its long-term high-frequency operation, the failure rate is relatively high, therefore, it is crucial to do a good job of daily maintenance and repair work. In the actual maintenance process, through the observation of bearing damage, can accurately determine the type of failure and the root cause, for the subsequent maintenance processing to provide a strong basis.
Automatic winding machine bearing common faults and cause analysis
Automatic winding machine bearing faults are diverse, the performance and causes of different faults are different, as follows:
I. Bearing metal wear
In the operation of the automatic winding machine, if the bearing is subjected to excessive load, it is very easy to trigger metal fatigue, which in turn causes wear and tear. The emergence of this problem, many times with the winding machine mold eccentricity related, mold offset will lead to uneven shaft bearing force, accelerate the wear process. In addition, in the assembly of automatic winding machine, if the bearing is not installed properly, such as installation position offset, not fixed firmly, etc., or shaft bending phenomenon, will change the normal bearing force state, triggering wear failure. When the bearing raceway after a long period of operation after wear, will directly affect the operating accuracy of the bearings, so that the equipment in the working process produces obvious vibration and noise, not only affect the quality of the winding, but also shorten the service life of the equipment.
Second, bearing burns and discoloration
automatic winding machine bearing burns and discoloration problems, mostly from the lack of lubrication. When the bearing lacks sufficient lubricant, or the quality of the lubricant used is not up to standard, and cannot play an effective lubrication role, the friction inside the bearing will increase dramatically, generating a large amount of heat, which leads to bearing burns and discoloration. In addition, the installation of the bearing assembly is too tight, which will limit the operating space of the bearing, intensify the friction heat, and trigger the burn phenomenon. At the same time, the distance between the thimbles of the automatic winding machine is not set reasonably, which will also cause additional pressure and friction on the bearings, which will lead to bearing burns.
Third, the bearing is cracked
The bearing is cracked, which may be caused by the over-tightening of the bearing installation. Too tight installation will make the bearing localized by too much pressure, resulting in its deformation, with the use of time, the deformation part is very easy to produce cracks. In addition, when the bearing is in a high-speed rotation state, the winding machine bearing fixings, if worn, will make the stability of the bearing decline, and in the process of rotation by the unstable force, which in turn triggers the crack failure.
Countermeasures and Maintenance Recommendations
Automatic coil winder has a wide range of mechanism components, and various failures will inevitably occur in the course of use. When the above problems occur in the bearings, the first thing to do is to carefully investigate and accurately find the cause of the failure, and then take targeted measures to solve the problem, in order to avoid the recurrence of similar failures.
In daily maintenance, the installation of bearings should be checked regularly to ensure that the installation position is accurate and firm, and the shaft is in normal condition without bending. At the same time, to reasonably adjust the position of the mold and thimble to ensure that the shaft bearing force is uniform. For lubrication, it is necessary to add qualified lubricant to the bearings on a regular basis to ensure that the lubrication is sufficient and effective. In addition, we should pay attention to the status of the bearing fixed parts, timely replacement of worn parts, to provide a stable operating environment for the bearings. Through scientific and reasonable maintenance, can significantly reduce the failure rate of bearings, to protect the stable and efficient operation of automatic winding machine.
