The method of solving slewing noise

Slewing bearing noise common to have two kinds of dust acoustic sound solutions and scars are as follows:
        (1) The method for controlling dust acoustic
      Slewing dust and other foreign matter inside, aperiodic vibrations occur, the so-called dust acoustic, vibration and noise of the size of its

Uncertain, and with or without.
   Dust acoustic control method: Improve slewing ring / turntable bearing cleaning method, before installing the bearings, shaft, housing bore and

Clean all the parts match the stringent cleaning; removal of foreign bodies within the lubricant; improve the bearing seals; avoid the use of materials or impure

A foreign body embedded plastic cage.
         (2) The method for controlling the sound wounds
    If slewing ring rolling surface cracks, dents or corrosion occurs as riveting as periodic vibration and rivets

Noise, its period may be fixed but most of the rotation speed into a certain correspondence between the scar occurs on the channel continuously, the wound

Marks on the ball when the time is now hidden, and this noise with the installation and lubrication conditions there are some changes.
   Such noise control method: When installing not knock the bearing, the bearing and shaft assembly into the bearing block and then to prevent

Bearing mounted oblique; inventory prevent bearing corrosion and transportation to prevent shock and vibration; using high viscosity grease.

       (3) Lubrication noise caused by factors and countermeasures
      Lubricant selection errors, lack of lubricant or the occurrence of aging sclerosis, can cause slewing ring / turntable bearings generate vibration

Action and noise, and this noise does not necessarily rule. In this case, only the selection of a suitable lubricant to adjust its

Amount of lubricant to extend lubricant life and reasonably determine the replacement cycle.
       (4) noise associated with the host and Countermeasures
  This noise is not simply caused by a bearing, and thus to find a single reason from the bearing area is invalid, plus a comprehensive response to the host

, Notes, if necessary, to improve the performance of the host. Now the main narrative common motor beeps and rack resonant sound.
     A motor beeps and Countermeasures
      Axial vibration of the motor shaft will cause a lot of high-frequency noise - beep, its frequency and the same axial vibration frequency,

Can be constant can be varied. Beep way to prevent axial vibration and prevent the same way.
    B bearing frame resonant sound and Countermeasures
      Quality Department aforementioned outer axial vibration inherent in the axial bearing frame bending natural vibration, is called a resonant sound

The noise will follow. Increase the preload method can improve the quality of the outer ring the natural frequency of the axial line, destruction resonance condition,

Reduce noise.