How to deal with the vibration of the cardan shaft of the paper machine?

When the mill cardan shaft is used, the vibration of the boot press part is too large, which is very bad for the use of the machine. Therefore, for this typical cardan shaft use problem, the cardan shaft manufacturer has carried out relevant analysis from three aspects.



How to deal with mill cardan shaft vibration?

First of all, the cardan shaft of the high speed mill must be tested for dynamic balance before delivery. According to the weight of the cardan shaft, the speed of the cardan shaft and the balance level required, the allowable unbalance is calculated theoretically. Through the dynamic balance test equipment to simulate the speed used in the field, the unbalance is measured at both ends, and the unbalance is reduced to meet the requirements of design and use.
Secondly, there are two methods of cardan axis dynamic balance: weight and weight removal. General paper machine gimbales balance methods are weighted, that is, in the outer diameter of the welding fork head welding counterweight block treatment to achieve balance, such gimbales weight is more than 100 kg, weight is relatively heavy to heavy is difficult to deal with. For light cardan shaft weight of less than 10 kg we recommend to heavy processing.
Again, we suggest that the cardan shaft of high speed rolling mill should be maintained on time and regularly. Including every day to the universal joint bearing and spline pair of these parts inside the injection of 3# lithium grease to ensure the normal work of its lubrication system, it is recommended that every 3 months to be shipped back to the manufacturer to do maintenance and dynamic balance test, to ensure the continuous operation of the entire machine equipment.
Once it has been found that the mill cardan shaft vibration is large, it can not continue to work, so as not to cause greater losses. We have to hand over to qualified manufacturers for maintenance and maintenance, all parts of the cardan shaft should be controlled, processing accuracy and assembly accuracy, and the balance of the cardan shaft will be better and the service life will be longer.