Time : 2018-06-07 Browse : 15
During the use of the universal coupling, vibration sometimes occurs, which not only affects the normal operation of the equipment, but also may aggravate the wear of components and shorten the service life. To solve this problem, it is necessary to first clarify the cause of the vibration and then take targeted measures.
The Main Reasons for the Vibration of the Universal Joint are as Follows:
The balance plate or element is not dynamically balanced, resulting in centrifugal force due to uneven mass distribution during operation, causing vibration.
During assembly, the two universal joints of the same cardan shaft are not in the same plane, which destroys the coordination of the transmission and causes unstable operation.
The universal coupling itself has defects such as bending and dented shaft tube, or the mark is not aligned when the transmission shaft is assembled, and the spline shaft and the shaft tube are skewed when welded, which will destroy the dynamic balance of the original and cause vibration.
The loose flange connection bolts cause the position of the universal shaft to deviate, change the transmission axis, and cause vibration.
The spline of the spline shaft and the sleeve is worn too much, resulting in excessive gap, which produces impact and shaking when transmitting torque, causing vibration.
For the Above Reasons, the Following Solutions can be Adopted:
For the balance problem, the universal coupling needs to be dynamically balanced, and appropriate balance sheets or components need to be balanced and compensated according to the test results to ensure that the mass distribution is uniform during operation.
If the two universal joints are not in the same plane due to improper assembly, they should be disassembled and installed according to the correct assembly specifications to ensure that the two universal joints are in the same plane and restore the coordination of the transmission.
When the universal coupling has defects such as bending and dents in the shaft tube, it is necessary to correct or replace the damaged parts; when assembling the transmission shaft, be sure to align the marks, and ensure that the welding position is accurate when welding the spline shaft and the shaft tube to ensure that the overall dynamic balance is not damaged. If the flange connection bolts are found to be loose, they should be tightened in time and replaced if necessary to ensure that the universal coupling is in the correct position to avoid vibration caused by deflection.
If the spline of the spline shaft and the sleeve is worn too much and the clearance exceeds the standard, the spline shaft or sleeve needs to be replaced to restore the appropriate matching clearance and reduce the impact and shaking when transmitting torque.
Through the above methods, the vibration problem of the universal coupling can be effectively solved, its stable operation can be guaranteed, and its service life can be extended. Just as the elastic coupling needs to pay attention to installation accuracy and maintenance management, the stable operation of the universal coupling also depends on the control of details.
