bokee.net

销售代表博客

正文 更多文章

溢流阀的噪声

        溢流阀易产生高频噪声,主要是先导阀性能不稳定所致,即为先导阀前腔压力高频振荡引起空气振动而产生的噪声。其主要原因有:
  (1)油液中混入空气,在先导阀前腔内形成气穴现象而引发高频噪声。此时,应及时排尽空气并防止外界空气重新进入。
  (2)针阀在使用过程中因频繁开启而过度磨损,使针阀锥面与阀座不能密合,造成先导流量不稳定、产生压力波动而引发噪声,此时应及时修理或更换。
  (3)先导阀因弹簧疲劳变形造成其调压功能不稳定,使得压力波动大而引发噪声,此时应更换弹簧。
  3.液压缸的噪声
  (1)油液中混有空气或液压缸中空气未完全排尽,在高压作用下产生气穴现象而引发较大噪声。此时,须及时排尽空气。
  (2)缸头油封过紧或活塞杆弯曲,在运动过程中也会因别劲而产生噪声。此时,须及时更换油封或校直活塞杆。
  4.管路噪声
  管路死弯过多或固定卡子松脱也能产生振动和噪声。因此,在管路布置上应尽量避免死弯,对松脱的卡子须及时拧紧。

Relief valve easy to produce high-frequency noise, mainly due to instability in the performance of the pilot valve, pilot valve is pre-chamber air pressure caused by high frequency oscillation caused by the vibration noise. The main reason are:
(1) mixed with oil in the air, the pilot valve in the cavity prior to the formation of cavitation caused by high-frequency noise. At this point, should be scheduled in time to make the air and to prevent outside air to re-enter.
(2) needle in the process due to the frequent use of open and excessive wear and tear, so that cone valve can not close together with the valve seat, causing the pilot flow instability and pressure fluctuations caused by noise, this time should be promptly repaired or replaced.
(3) of the pilot valve spring fatigue due to deformation caused by the functional instability of its regulator, the pressure fluctuations caused by large noise, the spring should be replaced at this time.
3. The noise of hydraulic cylinder
(1) oil in a mixture of air or hydraulic cylinders in the air do not fully scheduled, under the high pressure caused by cavitation noise larger. At this point, to be scheduled in time to make the air.
(2) cylinder head or piston rod seal tight bend in the campaign process and also because of other strong noise. At this point, should be the timely replacement of oil seal or piston rod alignment.
4. Line noise
Pipe bending die too loose or fixed Nagarze also produce vibration and noise. Therefore, arrangements should be in the pipeline to avoid dead corner Nagarze to loose to be tightened in time.

 

分享到:

上一篇:柱塞泵或马达的噪声

下一篇:密封盘根的切割和安装